diff options
Diffstat (limited to 'src/gallium/drivers/softpipe')
56 files changed, 10274 insertions, 0 deletions
diff --git a/src/gallium/drivers/softpipe/Makefile b/src/gallium/drivers/softpipe/Makefile new file mode 100644 index 00000000000..120bdfd9dd2 --- /dev/null +++ b/src/gallium/drivers/softpipe/Makefile @@ -0,0 +1,47 @@ +TOP = ../../../.. +include $(TOP)/configs/current + +LIBNAME = softpipe + +C_SOURCES = \ + sp_fs_exec.c \ + sp_fs_sse.c \ + sp_fs_llvm.c \ + sp_clear.c \ + sp_flush.c \ + sp_query.c \ + sp_context.c \ + sp_draw_arrays.c \ + sp_prim_setup.c \ + sp_prim_vbuf.c \ + sp_quad.c \ + sp_quad_alpha_test.c \ + sp_quad_blend.c \ + sp_quad_colormask.c \ + sp_quad_coverage.c \ + sp_quad_depth_test.c \ + sp_quad_earlyz.c \ + sp_quad_fs.c \ + sp_quad_occlusion.c \ + sp_quad_output.c \ + sp_quad_stencil.c \ + sp_quad_stipple.c \ + sp_screen.c \ + sp_setup.c \ + sp_state_blend.c \ + sp_state_clip.c \ + sp_state_derived.c \ + sp_state_fs.c \ + sp_state_sampler.c \ + sp_state_rasterizer.c \ + sp_state_surface.c \ + sp_state_vertex.c \ + sp_texture.c \ + sp_tex_sample.c \ + sp_tile_cache.c \ + sp_surface.c + +include ../../Makefile.template + +symlinks: + diff --git a/src/gallium/drivers/softpipe/SConscript b/src/gallium/drivers/softpipe/SConscript new file mode 100644 index 00000000000..c1f7daa8ab3 --- /dev/null +++ b/src/gallium/drivers/softpipe/SConscript @@ -0,0 +1,46 @@ +Import('*') + +env = env.Clone() + +softpipe = env.ConvenienceLibrary( + target = 'softpipe', + source = [ + 'sp_fs_exec.c', + 'sp_fs_sse.c', + 'sp_fs_llvm.c', + 'sp_clear.c', + 'sp_context.c', + 'sp_draw_arrays.c', + 'sp_flush.c', + 'sp_prim_setup.c', + 'sp_prim_vbuf.c', + 'sp_setup.c', + 'sp_quad_alpha_test.c', + 'sp_quad_blend.c', + 'sp_quad.c', + 'sp_quad_colormask.c', + 'sp_quad_coverage.c', + 'sp_quad_depth_test.c', + 'sp_quad_earlyz.c', + 'sp_quad_fs.c', + 'sp_quad_occlusion.c', + 'sp_quad_output.c', + 'sp_quad_stencil.c', + 'sp_quad_stipple.c', + 'sp_query.c', + 'sp_screen.c', + 'sp_state_blend.c', + 'sp_state_clip.c', + 'sp_state_derived.c', + 'sp_state_fs.c', + 'sp_state_rasterizer.c', + 'sp_state_sampler.c', + 'sp_state_surface.c', + 'sp_state_vertex.c', + 'sp_surface.c', + 'sp_tex_sample.c', + 'sp_texture.c', + 'sp_tile_cache.c', + ]) + +Export('softpipe')
\ No newline at end of file diff --git a/src/gallium/drivers/softpipe/sp_clear.c b/src/gallium/drivers/softpipe/sp_clear.c new file mode 100644 index 00000000000..12367068917 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_clear.c @@ -0,0 +1,78 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Author: + * Brian Paul + */ + + +#include "pipe/p_defines.h" +#include "sp_clear.h" +#include "sp_context.h" +#include "sp_surface.h" +#include "sp_state.h" +#include "sp_tile_cache.h" + + +/** + * Clear the given surface to the specified value. + * No masking, no scissor (clear entire buffer). + */ +void +softpipe_clear(struct pipe_context *pipe, struct pipe_surface *ps, + unsigned clearValue) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + uint i; + + if (softpipe->no_rast) + return; + +#if 0 + softpipe_update_derived(softpipe); /* not needed?? */ +#endif + + if (ps == sp_tile_cache_get_surface(softpipe->zsbuf_cache)) { + sp_tile_cache_clear(softpipe->zsbuf_cache, clearValue); + softpipe->framebuffer.zsbuf->status = PIPE_SURFACE_STATUS_CLEAR; +#if TILE_CLEAR_OPTIMIZATION + return; +#endif + } + + for (i = 0; i < softpipe->framebuffer.num_cbufs; i++) { + if (ps == sp_tile_cache_get_surface(softpipe->cbuf_cache[i])) { + sp_tile_cache_clear(softpipe->cbuf_cache[i], clearValue); + softpipe->framebuffer.cbufs[i]->status = PIPE_SURFACE_STATUS_CLEAR; + } + } + +#if !TILE_CLEAR_OPTIMIZATION + /* non-cached surface */ + pipe->surface_fill(pipe, ps, 0, 0, ps->width, ps->height, clearValue); +#endif +} diff --git a/src/gallium/drivers/softpipe/sp_clear.h b/src/gallium/drivers/softpipe/sp_clear.h new file mode 100644 index 00000000000..a8ed1c4ecc4 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_clear.h @@ -0,0 +1,43 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Author: + * Brian Paul + */ + +#ifndef SP_CLEAR_H +#define SP_CLEAR_H + +#include "pipe/p_state.h" +struct pipe_context; + +extern void +softpipe_clear(struct pipe_context *pipe, struct pipe_surface *ps, + unsigned clearValue); + + +#endif /* SP_CLEAR_H */ diff --git a/src/gallium/drivers/softpipe/sp_context.c b/src/gallium/drivers/softpipe/sp_context.c new file mode 100644 index 00000000000..dda90f760a3 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_context.c @@ -0,0 +1,259 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Author: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "draw/draw_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_inlines.h" +#include "util/u_math.h" +#include "util/u_memory.h" +#include "sp_clear.h" +#include "sp_context.h" +#include "sp_flush.h" +#include "sp_prim_setup.h" +#include "sp_prim_vbuf.h" +#include "sp_state.h" +#include "sp_surface.h" +#include "sp_tile_cache.h" +#include "sp_texture.h" +#include "sp_winsys.h" +#include "sp_query.h" + + + +/** + * Map any drawing surfaces which aren't already mapped + */ +void +softpipe_map_surfaces(struct softpipe_context *sp) +{ + unsigned i; + + for (i = 0; i < sp->framebuffer.num_cbufs; i++) { + sp_tile_cache_map_surfaces(sp->cbuf_cache[i]); + } + + sp_tile_cache_map_surfaces(sp->zsbuf_cache); +} + + +/** + * Unmap any mapped drawing surfaces + */ +void +softpipe_unmap_surfaces(struct softpipe_context *sp) +{ + uint i; + + for (i = 0; i < sp->framebuffer.num_cbufs; i++) + sp_flush_tile_cache(sp, sp->cbuf_cache[i]); + sp_flush_tile_cache(sp, sp->zsbuf_cache); + + for (i = 0; i < sp->framebuffer.num_cbufs; i++) { + sp_tile_cache_unmap_surfaces(sp->cbuf_cache[i]); + } + sp_tile_cache_unmap_surfaces(sp->zsbuf_cache); +} + + +static void softpipe_destroy( struct pipe_context *pipe ) +{ + struct softpipe_context *softpipe = softpipe_context( pipe ); + struct pipe_winsys *ws = pipe->winsys; + uint i; + + if (softpipe->draw) + draw_destroy( softpipe->draw ); + + softpipe->quad.polygon_stipple->destroy( softpipe->quad.polygon_stipple ); + softpipe->quad.earlyz->destroy( softpipe->quad.earlyz ); + softpipe->quad.shade->destroy( softpipe->quad.shade ); + softpipe->quad.alpha_test->destroy( softpipe->quad.alpha_test ); + softpipe->quad.depth_test->destroy( softpipe->quad.depth_test ); + softpipe->quad.stencil_test->destroy( softpipe->quad.stencil_test ); + softpipe->quad.occlusion->destroy( softpipe->quad.occlusion ); + softpipe->quad.coverage->destroy( softpipe->quad.coverage ); + softpipe->quad.blend->destroy( softpipe->quad.blend ); + softpipe->quad.colormask->destroy( softpipe->quad.colormask ); + softpipe->quad.output->destroy( softpipe->quad.output ); + + for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) + sp_destroy_tile_cache(softpipe->cbuf_cache[i]); + sp_destroy_tile_cache(softpipe->zsbuf_cache); + + for (i = 0; i < PIPE_MAX_SAMPLERS; i++) + sp_destroy_tile_cache(softpipe->tex_cache[i]); + + for (i = 0; i < Elements(softpipe->constants); i++) { + if (softpipe->constants[i].buffer) { + pipe_buffer_reference(ws, &softpipe->constants[i].buffer, NULL); + } + } + + FREE( softpipe ); +} + + +struct pipe_context * +softpipe_create( struct pipe_screen *screen, + struct pipe_winsys *pipe_winsys, + void *unused ) +{ + struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context); + uint i; + + util_init_math(); + +#ifdef PIPE_ARCH_X86 + softpipe->use_sse = !debug_get_bool_option( "GALLIUM_NOSSE", FALSE ); +#else + softpipe->use_sse = FALSE; +#endif + + softpipe->dump_fs = debug_get_bool_option( "GALLIUM_DUMP_FS", FALSE ); + + softpipe->pipe.winsys = pipe_winsys; + softpipe->pipe.screen = screen; + softpipe->pipe.destroy = softpipe_destroy; + + /* state setters */ + softpipe->pipe.create_blend_state = softpipe_create_blend_state; + softpipe->pipe.bind_blend_state = softpipe_bind_blend_state; + softpipe->pipe.delete_blend_state = softpipe_delete_blend_state; + + softpipe->pipe.create_sampler_state = softpipe_create_sampler_state; + softpipe->pipe.bind_sampler_states = softpipe_bind_sampler_states; + softpipe->pipe.delete_sampler_state = softpipe_delete_sampler_state; + + softpipe->pipe.create_depth_stencil_alpha_state = softpipe_create_depth_stencil_state; + softpipe->pipe.bind_depth_stencil_alpha_state = softpipe_bind_depth_stencil_state; + softpipe->pipe.delete_depth_stencil_alpha_state = softpipe_delete_depth_stencil_state; + + softpipe->pipe.create_rasterizer_state = softpipe_create_rasterizer_state; + softpipe->pipe.bind_rasterizer_state = softpipe_bind_rasterizer_state; + softpipe->pipe.delete_rasterizer_state = softpipe_delete_rasterizer_state; + + softpipe->pipe.create_fs_state = softpipe_create_fs_state; + softpipe->pipe.bind_fs_state = softpipe_bind_fs_state; + softpipe->pipe.delete_fs_state = softpipe_delete_fs_state; + + softpipe->pipe.create_vs_state = softpipe_create_vs_state; + softpipe->pipe.bind_vs_state = softpipe_bind_vs_state; + softpipe->pipe.delete_vs_state = softpipe_delete_vs_state; + + softpipe->pipe.set_blend_color = softpipe_set_blend_color; + softpipe->pipe.set_clip_state = softpipe_set_clip_state; + softpipe->pipe.set_constant_buffer = softpipe_set_constant_buffer; + softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state; + softpipe->pipe.set_polygon_stipple = softpipe_set_polygon_stipple; + softpipe->pipe.set_scissor_state = softpipe_set_scissor_state; + softpipe->pipe.set_sampler_textures = softpipe_set_sampler_textures; + softpipe->pipe.set_viewport_state = softpipe_set_viewport_state; + + softpipe->pipe.set_vertex_buffers = softpipe_set_vertex_buffers; + softpipe->pipe.set_vertex_elements = softpipe_set_vertex_elements; + + softpipe->pipe.draw_arrays = softpipe_draw_arrays; + softpipe->pipe.draw_elements = softpipe_draw_elements; + softpipe->pipe.draw_range_elements = softpipe_draw_range_elements; + softpipe->pipe.set_edgeflags = softpipe_set_edgeflags; + + + softpipe->pipe.clear = softpipe_clear; + softpipe->pipe.flush = softpipe_flush; + + softpipe_init_query_funcs( softpipe ); + softpipe_init_texture_funcs( softpipe ); + + /* + * Alloc caches for accessing drawing surfaces and textures. + * Must be before quad stage setup! + */ + for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) + softpipe->cbuf_cache[i] = sp_create_tile_cache( screen ); + softpipe->zsbuf_cache = sp_create_tile_cache( screen ); + + for (i = 0; i < PIPE_MAX_SAMPLERS; i++) + softpipe->tex_cache[i] = sp_create_tile_cache( screen ); + + + /* setup quad rendering stages */ + softpipe->quad.polygon_stipple = sp_quad_polygon_stipple_stage(softpipe); + softpipe->quad.earlyz = sp_quad_earlyz_stage(softpipe); + softpipe->quad.shade = sp_quad_shade_stage(softpipe); + softpipe->quad.alpha_test = sp_quad_alpha_test_stage(softpipe); + softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe); + softpipe->quad.stencil_test = sp_quad_stencil_test_stage(softpipe); + softpipe->quad.occlusion = sp_quad_occlusion_stage(softpipe); + softpipe->quad.coverage = sp_quad_coverage_stage(softpipe); + softpipe->quad.blend = sp_quad_blend_stage(softpipe); + softpipe->quad.colormask = sp_quad_colormask_stage(softpipe); + softpipe->quad.output = sp_quad_output_stage(softpipe); + + /* + * Create drawing context and plug our rendering stage into it. + */ + softpipe->draw = draw_create(); + if (!softpipe->draw) + goto fail; + + softpipe->setup = sp_draw_render_stage(softpipe); + if (!softpipe->setup) + goto fail; + + if (debug_get_bool_option( "SP_NO_RAST", FALSE )) + softpipe->no_rast = TRUE; + + if (debug_get_bool_option( "SP_NO_VBUF", FALSE )) { + /* Deprecated path -- vbuf is the intended interface to the draw module: + */ + draw_set_rasterize_stage(softpipe->draw, softpipe->setup); + } + else { + sp_init_vbuf(softpipe); + } + + /* plug in AA line/point stages */ + draw_install_aaline_stage(softpipe->draw, &softpipe->pipe); + draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe); + +#if USE_DRAW_STAGE_PSTIPPLE + /* Do polygon stipple w/ texture map + frag prog? */ + draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe); +#endif + + sp_init_surface_functions(softpipe); + + return &softpipe->pipe; + + fail: + softpipe_destroy(&softpipe->pipe); + return NULL; +} diff --git a/src/gallium/drivers/softpipe/sp_context.h b/src/gallium/drivers/softpipe/sp_context.h new file mode 100644 index 00000000000..078886f93c9 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_context.h @@ -0,0 +1,163 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + +#ifndef SP_CONTEXT_H +#define SP_CONTEXT_H + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" + +#include "draw/draw_vertex.h" + +#include "sp_quad.h" + + +/** + * This is a temporary variable for testing draw-stage polygon stipple. + * If zero, do stipple in sp_quad_stipple.c + */ +#define USE_DRAW_STAGE_PSTIPPLE 1 + + +struct softpipe_winsys; +struct softpipe_vbuf_render; +struct draw_context; +struct draw_stage; +struct softpipe_tile_cache; +struct sp_fragment_shader; +struct sp_vertex_shader; + + +struct softpipe_context { + struct pipe_context pipe; /**< base class */ + + /* The most recent drawing state as set by the driver: + */ + const struct pipe_blend_state *blend; + const struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS]; + const struct pipe_depth_stencil_alpha_state *depth_stencil; + const struct pipe_rasterizer_state *rasterizer; + const struct sp_fragment_shader *fs; + const struct sp_vertex_shader *vs; + + struct pipe_blend_color blend_color; + struct pipe_clip_state clip; + struct pipe_constant_buffer constants[PIPE_SHADER_TYPES]; + struct pipe_framebuffer_state framebuffer; + struct pipe_poly_stipple poly_stipple; + struct pipe_scissor_state scissor; + struct pipe_texture *texture[PIPE_MAX_SAMPLERS]; + struct pipe_viewport_state viewport; + struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS]; + struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS]; + unsigned dirty; + + unsigned num_samplers; + unsigned num_textures; + unsigned num_vertex_elements; + unsigned num_vertex_buffers; + + boolean no_rast; + + /* Counter for occlusion queries. Note this supports overlapping + * queries. + */ + uint64 occlusion_count; + + /* + * Mapped vertex buffers + */ + ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS]; + + /** Mapped constant buffers */ + void *mapped_constants[PIPE_SHADER_TYPES]; + + /** Vertex format */ + struct vertex_info vertex_info; + struct vertex_info vertex_info_vbuf; + + int psize_slot; + + unsigned reduced_api_prim; /**< PIPE_PRIM_POINTS, _LINES or _TRIANGLES */ + +#if 0 + /* Stipple derived state: + */ + ubyte stipple_masks[16][16]; +#endif + + /** Derived from scissor and surface bounds: */ + struct pipe_scissor_state cliprect; + + unsigned line_stipple_counter; + + /** Software quad rendering pipeline */ + struct { + struct quad_stage *polygon_stipple; + struct quad_stage *earlyz; + struct quad_stage *shade; + struct quad_stage *alpha_test; + struct quad_stage *stencil_test; + struct quad_stage *depth_test; + struct quad_stage *occlusion; + struct quad_stage *coverage; + struct quad_stage *blend; + struct quad_stage *colormask; + struct quad_stage *output; + + struct quad_stage *first; /**< points to one of the above stages */ + } quad; + + /** The primitive drawing context */ + struct draw_context *draw; + struct draw_stage *setup; + struct draw_stage *vbuf; + struct softpipe_vbuf_render *vbuf_render; + + struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS]; + struct softpipe_tile_cache *zsbuf_cache; + + struct softpipe_tile_cache *tex_cache[PIPE_MAX_SAMPLERS]; + + int use_sse : 1; + int dump_fs : 1; +}; + + + + +static INLINE struct softpipe_context * +softpipe_context( struct pipe_context *pipe ) +{ + return (struct softpipe_context *)pipe; +} + + +#endif /* SP_CONTEXT_H */ diff --git a/src/gallium/drivers/softpipe/sp_draw_arrays.c b/src/gallium/drivers/softpipe/sp_draw_arrays.c new file mode 100644 index 00000000000..12b44a82118 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_draw_arrays.c @@ -0,0 +1,201 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Author: + * Brian Paul + * Keith Whitwell + */ + + +#include "pipe/p_defines.h" +#include "pipe/p_context.h" +#include "pipe/p_winsys.h" + +#include "sp_context.h" +#include "sp_state.h" + +#include "draw/draw_context.h" + + + +static void +softpipe_map_constant_buffers(struct softpipe_context *sp) +{ + struct pipe_winsys *ws = sp->pipe.winsys; + uint i; + for (i = 0; i < PIPE_SHADER_TYPES; i++) { + if (sp->constants[i].size) + sp->mapped_constants[i] = ws->buffer_map(ws, sp->constants[i].buffer, + PIPE_BUFFER_USAGE_CPU_READ); + } + + draw_set_mapped_constant_buffer(sp->draw, + sp->mapped_constants[PIPE_SHADER_VERTEX], + sp->constants[PIPE_SHADER_VERTEX].size); +} + +static void +softpipe_unmap_constant_buffers(struct softpipe_context *sp) +{ + struct pipe_winsys *ws = sp->pipe.winsys; + uint i; + + /* really need to flush all prims since the vert/frag shaders const buffers + * are going away now. + */ + draw_flush(sp->draw); + + draw_set_mapped_constant_buffer(sp->draw, NULL, 0); + + for (i = 0; i < 2; i++) { + if (sp->constants[i].size) + ws->buffer_unmap(ws, sp->constants[i].buffer); + sp->mapped_constants[i] = NULL; + } +} + + +static unsigned reduced_prim[PIPE_PRIM_POLYGON + 1] = { + PIPE_PRIM_POINTS, + PIPE_PRIM_LINES, + PIPE_PRIM_LINES, + PIPE_PRIM_LINES, + PIPE_PRIM_TRIANGLES, + PIPE_PRIM_TRIANGLES, + PIPE_PRIM_TRIANGLES, + PIPE_PRIM_TRIANGLES, + PIPE_PRIM_TRIANGLES, + PIPE_PRIM_TRIANGLES +}; + + +boolean +softpipe_draw_arrays(struct pipe_context *pipe, unsigned mode, + unsigned start, unsigned count) +{ + return softpipe_draw_elements(pipe, NULL, 0, mode, start, count); +} + + + +/** + * Draw vertex arrays, with optional indexing. + * Basically, map the vertex buffers (and drawing surfaces), then hand off + * the drawing to the 'draw' module. + * + * XXX should the element buffer be specified/bound with a separate function? + */ + +boolean +softpipe_draw_range_elements(struct pipe_context *pipe, + struct pipe_buffer *indexBuffer, + unsigned indexSize, + unsigned min_index, + unsigned max_index, + unsigned mode, unsigned start, unsigned count) +{ + struct softpipe_context *sp = softpipe_context(pipe); + struct draw_context *draw = sp->draw; + unsigned i; + + sp->reduced_api_prim = reduced_prim[mode]; + + if (sp->dirty) + softpipe_update_derived( sp ); + + softpipe_map_surfaces(sp); + softpipe_map_constant_buffers(sp); + + /* + * Map vertex buffers + */ + for (i = 0; i < sp->num_vertex_buffers; i++) { + void *buf + = pipe->winsys->buffer_map(pipe->winsys, + sp->vertex_buffer[i].buffer, + PIPE_BUFFER_USAGE_CPU_READ); + draw_set_mapped_vertex_buffer(draw, i, buf); + } + /* Map index buffer, if present */ + if (indexBuffer) { + void *mapped_indexes + = pipe->winsys->buffer_map(pipe->winsys, indexBuffer, + PIPE_BUFFER_USAGE_CPU_READ); + draw_set_mapped_element_buffer_range(draw, indexSize, + min_index, + max_index, + mapped_indexes); + } + else { + /* no index/element buffer */ + draw_set_mapped_element_buffer_range(draw, 0, start, start + count - 1, NULL); + } + + + /* draw! */ + draw_arrays(draw, mode, start, count); + + /* + * unmap vertex/index buffers - will cause draw module to flush + */ + for (i = 0; i < sp->num_vertex_buffers; i++) { + draw_set_mapped_vertex_buffer(draw, i, NULL); + pipe->winsys->buffer_unmap(pipe->winsys, sp->vertex_buffer[i].buffer); + } + if (indexBuffer) { + draw_set_mapped_element_buffer(draw, 0, NULL); + pipe->winsys->buffer_unmap(pipe->winsys, indexBuffer); + } + + + /* Note: leave drawing surfaces mapped */ + softpipe_unmap_constant_buffers(sp); + + return TRUE; +} + +boolean +softpipe_draw_elements(struct pipe_context *pipe, + struct pipe_buffer *indexBuffer, + unsigned indexSize, + unsigned mode, unsigned start, unsigned count) +{ + return softpipe_draw_range_elements( pipe, indexBuffer, + indexSize, + 0, 0xffffffff, + mode, start, count ); +} + + + +void +softpipe_set_edgeflags(struct pipe_context *pipe, const unsigned *edgeflags) +{ + struct softpipe_context *sp = softpipe_context(pipe); + draw_set_edgeflags(sp->draw, edgeflags); +} + diff --git a/src/gallium/drivers/softpipe/sp_flush.c b/src/gallium/drivers/softpipe/sp_flush.c new file mode 100644 index 00000000000..e03994b63b7 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_flush.c @@ -0,0 +1,79 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Author: + * Keith Whitwell <keith@tungstengraphics.com> + */ + + +#include "pipe/p_defines.h" +#include "draw/draw_context.h" +#include "sp_flush.h" +#include "sp_context.h" +#include "sp_surface.h" +#include "sp_state.h" +#include "sp_tile_cache.h" +#include "sp_winsys.h" + + +void +softpipe_flush( struct pipe_context *pipe, + unsigned flags, + struct pipe_fence_handle **fence ) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + uint i; + + draw_flush(softpipe->draw); + + if (flags & PIPE_FLUSH_TEXTURE_CACHE) { + for (i = 0; i < softpipe->num_textures; i++) { + sp_flush_tile_cache(softpipe, softpipe->tex_cache[i]); + } + } + + if (flags & PIPE_FLUSH_RENDER_CACHE) { + for (i = 0; i < softpipe->framebuffer.num_cbufs; i++) + if (softpipe->cbuf_cache[i]) + sp_flush_tile_cache(softpipe, softpipe->cbuf_cache[i]); + + if (softpipe->zsbuf_cache) + sp_flush_tile_cache(softpipe, softpipe->zsbuf_cache); + + /* Need this call for hardware buffers before swapbuffers. + * + * there should probably be another/different flush-type function + * that's called before swapbuffers because we don't always want + * to unmap surfaces when flushing. + */ + softpipe_unmap_surfaces(softpipe); + } + + if (fence) + *fence = NULL; +} + diff --git a/src/gallium/drivers/softpipe/sp_flush.h b/src/gallium/drivers/softpipe/sp_flush.h new file mode 100644 index 00000000000..68d9b5fa835 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_flush.h @@ -0,0 +1,37 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#ifndef SP_FLUSH_H +#define SP_FLUSH_H + +struct pipe_context; +struct pipe_fence_handle; + +void softpipe_flush(struct pipe_context *pipe, unsigned flags, + struct pipe_fence_handle **fence); + +#endif diff --git a/src/gallium/drivers/softpipe/sp_fs.h b/src/gallium/drivers/softpipe/sp_fs.h new file mode 100644 index 00000000000..4792ace3a33 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_fs.h @@ -0,0 +1,54 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + +#ifndef SP_FS_H +#define SP_FS_H + +struct sp_fragment_shader * +softpipe_create_fs_exec(struct softpipe_context *softpipe, + const struct pipe_shader_state *templ); + +struct sp_fragment_shader * +softpipe_create_fs_sse(struct softpipe_context *softpipe, + const struct pipe_shader_state *templ); + +struct sp_fragment_shader * +softpipe_create_fs_llvm(struct softpipe_context *softpipe, + const struct pipe_shader_state *templ); + +struct tgsi_interp_coef; +struct tgsi_exec_vector; + +void sp_setup_pos_vector(const struct tgsi_interp_coef *coef, + float x, float y, + struct tgsi_exec_vector *quadpos); + + +#endif diff --git a/src/gallium/drivers/softpipe/sp_fs_exec.c b/src/gallium/drivers/softpipe/sp_fs_exec.c new file mode 100644 index 00000000000..d0456731bea --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_fs_exec.c @@ -0,0 +1,150 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +#include "sp_context.h" +#include "sp_state.h" +#include "sp_fs.h" +#include "sp_headers.h" + + +#include "pipe/p_state.h" +#include "pipe/p_defines.h" +#include "util/u_memory.h" +#include "pipe/p_inlines.h" +#include "tgsi/tgsi_exec.h" +#include "tgsi/tgsi_parse.h" + +struct sp_exec_fragment_shader { + struct sp_fragment_shader base; +}; + + + +/** + * Compute quad X,Y,Z,W for the four fragments in a quad. + * + * This should really be part of the compiled shader. + */ +void +sp_setup_pos_vector(const struct tgsi_interp_coef *coef, + float x, float y, + struct tgsi_exec_vector *quadpos) +{ + uint chan; + /* do X */ + quadpos->xyzw[0].f[0] = x; + quadpos->xyzw[0].f[1] = x + 1; + quadpos->xyzw[0].f[2] = x; + quadpos->xyzw[0].f[3] = x + 1; + + /* do Y */ + quadpos->xyzw[1].f[0] = y; + quadpos->xyzw[1].f[1] = y; + quadpos->xyzw[1].f[2] = y + 1; + quadpos->xyzw[1].f[3] = y + 1; + + /* do Z and W for all fragments in the quad */ + for (chan = 2; chan < 4; chan++) { + const float dadx = coef->dadx[chan]; + const float dady = coef->dady[chan]; + const float a0 = coef->a0[chan] + dadx * x + dady * y; + quadpos->xyzw[chan].f[0] = a0; + quadpos->xyzw[chan].f[1] = a0 + dadx; + quadpos->xyzw[chan].f[2] = a0 + dady; + quadpos->xyzw[chan].f[3] = a0 + dadx + dady; + } +} + + +static void +exec_prepare( const struct sp_fragment_shader *base, + struct tgsi_exec_machine *machine, + struct tgsi_sampler *samplers ) +{ + tgsi_exec_machine_bind_shader( machine, + base->shader.tokens, + PIPE_MAX_SAMPLERS, + samplers ); +} + + + + +/* TODO: hide the machine struct in here somewhere, remove from this + * interface: + */ +static unsigned +exec_run( const struct sp_fragment_shader *base, + struct tgsi_exec_machine *machine, + struct quad_header *quad ) +{ + + /* Compute X, Y, Z, W vals for this quad */ + sp_setup_pos_vector(quad->posCoef, + (float)quad->x0, (float)quad->y0, + &machine->QuadPos); + + return tgsi_exec_machine_run( machine ); +} + + + +static void +exec_delete( struct sp_fragment_shader *base ) +{ + FREE((void *) base->shader.tokens); + FREE(base); +} + + + + + +struct sp_fragment_shader * +softpipe_create_fs_exec(struct softpipe_context *softpipe, + const struct pipe_shader_state *templ) +{ + struct sp_exec_fragment_shader *shader; + + /* Decide whether we'll be codegenerating this shader and if so do + * that now. + */ + + shader = CALLOC_STRUCT(sp_exec_fragment_shader); + if (!shader) + return NULL; + + /* we need to keep a local copy of the tokens */ + shader->base.shader.tokens = tgsi_dup_tokens(templ->tokens); + shader->base.prepare = exec_prepare; + shader->base.run = exec_run; + shader->base.delete = exec_delete; + + return &shader->base; +} + diff --git a/src/gallium/drivers/softpipe/sp_fs_llvm.c b/src/gallium/drivers/softpipe/sp_fs_llvm.c new file mode 100644 index 00000000000..34adac5226c --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_fs_llvm.c @@ -0,0 +1,200 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: + * Zack Rusin + */ + +#include "sp_context.h" +#include "sp_state.h" +#include "sp_fs.h" + + +#include "pipe/p_state.h" +#include "pipe/p_defines.h" +#include "util/u_memory.h" +#include "pipe/p_inlines.h" +#include "tgsi/tgsi_sse2.h" + +#if 0 + +struct sp_llvm_fragment_shader { + struct sp_fragment_shader base; + struct gallivm_prog *llvm_prog; +}; + +static void +shade_quad_llvm(struct quad_stage *qs, + struct quad_header *quad) +{ + struct quad_shade_stage *qss = quad_shade_stage(qs); + struct softpipe_context *softpipe = qs->softpipe; + float dests[4][16][4] ALIGN16_ATTRIB; + float inputs[4][16][4] ALIGN16_ATTRIB; + const float fx = (float) quad->x0; + const float fy = (float) quad->y0; + struct gallivm_prog *llvm = qss->llvm_prog; + + inputs[0][0][0] = fx; + inputs[1][0][0] = fx + 1.0f; + inputs[2][0][0] = fx; + inputs[3][0][0] = fx + 1.0f; + + inputs[0][0][1] = fy; + inputs[1][0][1] = fy; + inputs[2][0][1] = fy + 1.0f; + inputs[3][0][1] = fy + 1.0f; + + + gallivm_prog_inputs_interpolate(llvm, inputs, quad->coef); + +#if DLLVM + debug_printf("MASK = %d\n", quad->mask); + for (int i = 0; i < 4; ++i) { + for (int j = 0; j < 2; ++j) { + debug_printf("IN(%d,%d) [%f %f %f %f]\n", i, j, + inputs[i][j][0], inputs[i][j][1], inputs[i][j][2], inputs[i][j][3]); + } + } +#endif + + quad->mask &= + gallivm_fragment_shader_exec(llvm, fx, fy, dests, inputs, + softpipe->mapped_constants[PIPE_SHADER_FRAGMENT], + qss->samplers); +#if DLLVM + debug_printf("OUT LLVM = 1[%f %f %f %f], 2[%f %f %f %f]\n", + dests[0][0][0], dests[0][0][1], dests[0][0][2], dests[0][0][3], + dests[0][1][0], dests[0][1][1], dests[0][1][2], dests[0][1][3]); +#endif + + /* store result color */ + if (qss->colorOutSlot >= 0) { + unsigned i; + /* XXX need to handle multiple color outputs someday */ + allvmrt(qss->stage.softpipe->fs->info.output_semantic_name[qss->colorOutSlot] + == TGSI_SEMANTIC_COLOR); + for (i = 0; i < QUAD_SIZE; ++i) { + quad->outputs.color[0][0][i] = dests[i][qss->colorOutSlot][0]; + quad->outputs.color[0][1][i] = dests[i][qss->colorOutSlot][1]; + quad->outputs.color[0][2][i] = dests[i][qss->colorOutSlot][2]; + quad->outputs.color[0][3][i] = dests[i][qss->colorOutSlot][3]; + } + } +#if DLLVM + for (int i = 0; i < QUAD_SIZE; ++i) { + debug_printf("QLLVM%d(%d) [%f, %f, %f, %f]\n", i, qss->colorOutSlot, + quad->outputs.color[0][0][i], + quad->outputs.color[0][1][i], + quad->outputs.color[0][2][i], + quad->outputs.color[0][3][i]); + } +#endif + + /* store result Z */ + if (qss->depthOutSlot >= 0) { + /* output[slot] is new Z */ + uint i; + for (i = 0; i < 4; i++) { + quad->outputs.depth[i] = dests[i][0][2]; + } + } + else { + /* copy input Z (which was interpolated by the executor) to output Z */ + uint i; + for (i = 0; i < 4; i++) { + quad->outputs.depth[i] = inputs[i][0][2]; + } + } +#if DLLVM + debug_printf("D [%f, %f, %f, %f] mask = %d\n", + quad->outputs.depth[0], + quad->outputs.depth[1], + quad->outputs.depth[2], + quad->outputs.depth[3], quad->mask); +#endif + + /* shader may cull fragments */ + if( quad->mask ) { + qs->next->run( qs->next, quad ); + } +} + + +unsigned +run_llvm_fs( const struct sp_fragment_shader *base, + struct foo *machine ) +{ +} + + +void +delete_llvm_fs( struct sp_fragment_shader *base ) +{ + FREE(base); +} + + +struct sp_fragment_shader * +softpipe_create_fs_llvm(struct softpipe_context *softpipe, + const struct pipe_shader_state *templ) +{ + struct sp_llvm_fragment_shader *shader = NULL; + + /* LLVM fragment shaders currently disabled: + */ + state = CALLOC_STRUCT(sp_llvm_shader_state); + if (!state) + return NULL; + + state->llvm_prog = 0; + + if (!gallivm_global_cpu_engine()) { + gallivm_cpu_engine_create(state->llvm_prog); + } + else + gallivm_cpu_jit_compile(gallivm_global_cpu_engine(), state->llvm_prog); + + if (shader) { + shader->base.run = run_llvm_fs; + shader->base.delete = delete_llvm_fs; + } + + return shader; +} + + +#else + +struct sp_fragment_shader * +softpipe_create_fs_llvm(struct softpipe_context *softpipe, + const struct pipe_shader_state *templ) +{ + return NULL; +} + +#endif diff --git a/src/gallium/drivers/softpipe/sp_fs_sse.c b/src/gallium/drivers/softpipe/sp_fs_sse.c new file mode 100644 index 00000000000..35653a8e48c --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_fs_sse.c @@ -0,0 +1,168 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +#include "sp_context.h" +#include "sp_state.h" +#include "sp_fs.h" +#include "sp_headers.h" + + +#include "pipe/p_state.h" +#include "pipe/p_defines.h" +#include "util/u_memory.h" +#include "pipe/p_inlines.h" +#include "tgsi/tgsi_exec.h" +#include "tgsi/tgsi_sse2.h" + + +#ifdef PIPE_ARCH_X86 + +#include "rtasm/rtasm_x86sse.h" + +/* Surely this should be defined somewhere in a tgsi header: + */ +typedef void (PIPE_CDECL *codegen_function)( + const struct tgsi_exec_vector *input, + struct tgsi_exec_vector *output, + const float (*constant)[4], + struct tgsi_exec_vector *temporary, + const struct tgsi_interp_coef *coef, + float (*immediates)[4] + //, const struct tgsi_exec_vector *quadPos + ); + + +struct sp_sse_fragment_shader { + struct sp_fragment_shader base; + struct x86_function sse2_program; + codegen_function func; + float immediates[TGSI_EXEC_NUM_IMMEDIATES][4]; +}; + + + +static void +fs_sse_prepare( const struct sp_fragment_shader *base, + struct tgsi_exec_machine *machine, + struct tgsi_sampler *samplers ) +{ +} + + +/* TODO: codegenerate the whole run function, skip this wrapper. + * TODO: break dependency on tgsi_exec_machine struct + * TODO: push Position calculation into the generated shader + * TODO: process >1 quad at a time + */ +static unsigned +fs_sse_run( const struct sp_fragment_shader *base, + struct tgsi_exec_machine *machine, + struct quad_header *quad ) +{ + struct sp_sse_fragment_shader *shader = (struct sp_sse_fragment_shader *) base; + + /* Compute X, Y, Z, W vals for this quad -- place in temp[0] for now */ + sp_setup_pos_vector(quad->posCoef, + (float)quad->x0, (float)quad->y0, + machine->Temps); + + /* init kill mask */ + machine->Temps[TGSI_EXEC_TEMP_KILMASK_I].xyzw[TGSI_EXEC_TEMP_KILMASK_C].u[0] = 0x0; + + shader->func( machine->Inputs, + machine->Outputs, + machine->Consts, + machine->Temps, + machine->InterpCoefs, + shader->immediates + // , &machine->QuadPos + ); + + return ~(machine->Temps[TGSI_EXEC_TEMP_KILMASK_I].xyzw[TGSI_EXEC_TEMP_KILMASK_C].u[0]); +} + + +static void +fs_sse_delete( struct sp_fragment_shader *base ) +{ + struct sp_sse_fragment_shader *shader = (struct sp_sse_fragment_shader *) base; + + x86_release_func( &shader->sse2_program ); + FREE(shader); +} + + +struct sp_fragment_shader * +softpipe_create_fs_sse(struct softpipe_context *softpipe, + const struct pipe_shader_state *templ) +{ + struct sp_sse_fragment_shader *shader; + + if (!softpipe->use_sse) + return NULL; + + shader = CALLOC_STRUCT(sp_sse_fragment_shader); + if (!shader) + return NULL; + + x86_init_func( &shader->sse2_program ); + + if (!tgsi_emit_sse2( templ->tokens, &shader->sse2_program, + shader->immediates, FALSE )) { + FREE(shader); + return NULL; + } + + shader->func = (codegen_function) x86_get_func( &shader->sse2_program ); + if (!shader->func) { + x86_release_func( &shader->sse2_program ); + FREE(shader); + return NULL; + } + + shader->base.shader = *templ; + shader->base.prepare = fs_sse_prepare; + shader->base.run = fs_sse_run; + shader->base.delete = fs_sse_delete; + + return &shader->base; +} + + +#else + +/* Maybe put this varient in the header file. + */ +struct sp_fragment_shader * +softpipe_create_fs_sse(struct softpipe_context *softpipe, + const struct pipe_shader_state *templ) +{ + return NULL; +} + +#endif diff --git a/src/gallium/drivers/softpipe/sp_headers.h b/src/gallium/drivers/softpipe/sp_headers.h new file mode 100644 index 00000000000..ae2ee210fc9 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_headers.h @@ -0,0 +1,84 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + +#ifndef SP_HEADERS_H +#define SP_HEADERS_H + +#include "pipe/p_state.h" +#include "tgsi/tgsi_exec.h" + +#define PRIM_POINT 1 +#define PRIM_LINE 2 +#define PRIM_TRI 3 + + +/* The rasterizer generates 2x2 quads of fragment and feeds them to + * the current fp_machine (see below). + * Remember that Y=0=top with Y increasing down the window. + */ +#define QUAD_TOP_LEFT 0 +#define QUAD_TOP_RIGHT 1 +#define QUAD_BOTTOM_LEFT 2 +#define QUAD_BOTTOM_RIGHT 3 + +#define MASK_TOP_LEFT (1 << QUAD_TOP_LEFT) +#define MASK_TOP_RIGHT (1 << QUAD_TOP_RIGHT) +#define MASK_BOTTOM_LEFT (1 << QUAD_BOTTOM_LEFT) +#define MASK_BOTTOM_RIGHT (1 << QUAD_BOTTOM_RIGHT) +#define MASK_ALL 0xf + + +/** + * Encodes everything we need to know about a 2x2 pixel block. Uses + * "Channel-Serial" or "SoA" layout. + */ +struct quad_header { + int x0; + int y0; + unsigned mask:4; + unsigned facing:1; /**< Front (0) or back (1) facing? */ + unsigned prim:2; /**< PRIM_POINT, LINE, TRI */ + + struct { + /** colors in SOA format (rrrr, gggg, bbbb, aaaa) */ + float color[PIPE_MAX_COLOR_BUFS][NUM_CHANNELS][QUAD_SIZE]; + float depth[QUAD_SIZE]; + } outputs; + + float coverage[QUAD_SIZE]; /** fragment coverage for antialiasing */ + + const struct tgsi_interp_coef *coef; + const struct tgsi_interp_coef *posCoef; + + unsigned nr_attrs; +}; + + +#endif /* SP_HEADERS_H */ diff --git a/src/gallium/drivers/softpipe/sp_prim_setup.c b/src/gallium/drivers/softpipe/sp_prim_setup.c new file mode 100644 index 00000000000..038ff04d4f1 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_prim_setup.c @@ -0,0 +1,190 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * \brief A draw stage that drives our triangle setup routines from + * within the draw pipeline. One of two ways to drive setup, the + * other being in sp_prim_vbuf.c. + * + * \author Keith Whitwell <keith@tungstengraphics.com> + * \author Brian Paul + */ + + +#include "sp_context.h" +#include "sp_setup.h" +#include "sp_state.h" +#include "sp_prim_setup.h" +#include "draw/draw_pipe.h" +#include "draw/draw_vertex.h" +#include "util/u_memory.h" + +/** + * Triangle setup info (derived from draw_stage). + * Also used for line drawing (taking some liberties). + */ +struct setup_stage { + struct draw_stage stage; /**< This must be first (base class) */ + + struct setup_context *setup; +}; + + + +/** + * Basically a cast wrapper. + */ +static INLINE struct setup_stage *setup_stage( struct draw_stage *stage ) +{ + return (struct setup_stage *)stage; +} + + +typedef const float (*cptrf4)[4]; + +static void +do_tri(struct draw_stage *stage, struct prim_header *prim) +{ + struct setup_stage *setup = setup_stage( stage ); + + setup_tri( setup->setup, + (cptrf4)prim->v[0]->data, + (cptrf4)prim->v[1]->data, + (cptrf4)prim->v[2]->data ); +} + +static void +do_line(struct draw_stage *stage, struct prim_header *prim) +{ + struct setup_stage *setup = setup_stage( stage ); + + setup_line( setup->setup, + (cptrf4)prim->v[0]->data, + (cptrf4)prim->v[1]->data ); +} + +static void +do_point(struct draw_stage *stage, struct prim_header *prim) +{ + struct setup_stage *setup = setup_stage( stage ); + + setup_point( setup->setup, + (cptrf4)prim->v[0]->data ); +} + + + + +static void setup_begin( struct draw_stage *stage ) +{ + struct setup_stage *setup = setup_stage(stage); + + setup_prepare( setup->setup ); + + stage->point = do_point; + stage->line = do_line; + stage->tri = do_tri; +} + + +static void setup_first_point( struct draw_stage *stage, + struct prim_header *header ) +{ + setup_begin(stage); + stage->point( stage, header ); +} + +static void setup_first_line( struct draw_stage *stage, + struct prim_header *header ) +{ + setup_begin(stage); + stage->line( stage, header ); +} + + +static void setup_first_tri( struct draw_stage *stage, + struct prim_header *header ) +{ + setup_begin(stage); + stage->tri( stage, header ); +} + + + +static void setup_flush( struct draw_stage *stage, + unsigned flags ) +{ + stage->point = setup_first_point; + stage->line = setup_first_line; + stage->tri = setup_first_tri; +} + + +static void reset_stipple_counter( struct draw_stage *stage ) +{ +} + + +static void render_destroy( struct draw_stage *stage ) +{ + struct setup_stage *ssetup = setup_stage(stage); + setup_destroy_context(ssetup->setup); + FREE( stage ); +} + + +/** + * Create a new primitive setup/render stage. + */ +struct draw_stage *sp_draw_render_stage( struct softpipe_context *softpipe ) +{ + struct setup_stage *sstage = CALLOC_STRUCT(setup_stage); + + sstage->setup = setup_create_context(softpipe); + sstage->stage.draw = softpipe->draw; + sstage->stage.point = setup_first_point; + sstage->stage.line = setup_first_line; + sstage->stage.tri = setup_first_tri; + sstage->stage.flush = setup_flush; + sstage->stage.reset_stipple_counter = reset_stipple_counter; + sstage->stage.destroy = render_destroy; + + return (struct draw_stage *)sstage; +} + +struct setup_context * +sp_draw_setup_context( struct draw_stage *stage ) +{ + struct setup_stage *ssetup = setup_stage(stage); + return ssetup->setup; +} + +void +sp_draw_flush( struct draw_stage *stage ) +{ + stage->flush( stage, 0 ); +} diff --git a/src/gallium/drivers/softpipe/sp_prim_setup.h b/src/gallium/drivers/softpipe/sp_prim_setup.h new file mode 100644 index 00000000000..49bdd98ed87 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_prim_setup.h @@ -0,0 +1,85 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +#ifndef SP_PRIM_SETUP_H +#define SP_PRIM_SETUP_H + + +/** + * vbuf is a special stage to gather the stream of triangles, lines, points + * together and reconstruct vertex buffers for hardware upload. + * + * First attempt, work in progress. + * + * TODO: + * - separate out vertex buffer building and primitive emit, ie >1 draw per vb. + * - tell vbuf stage how to build hw vertices directly + * - pass vbuf stage a buffer pointer for direct emit to agp/vram. + * + * + * + * Vertices are just an array of floats, with all the attributes + * packed. We currently assume a layout like: + * + * attr[0][0..3] - window position + * attr[1..n][0..3] - remaining attributes. + * + * Attributes are assumed to be 4 floats wide but are packed so that + * all the enabled attributes run contiguously. + */ + + +struct draw_stage; +struct softpipe_context; + + +typedef void (*vbuf_draw_func)( struct pipe_context *pipe, + unsigned prim, + const ushort *elements, + unsigned nr_elements, + const void *vertex_buffer, + unsigned nr_vertices ); + + +extern struct draw_stage * +sp_draw_render_stage( struct softpipe_context *softpipe ); + +extern struct setup_context * +sp_draw_setup_context( struct draw_stage * ); + +extern void +sp_draw_flush( struct draw_stage * ); + + +extern struct draw_stage * +sp_draw_vbuf_stage( struct draw_context *draw_context, + struct pipe_context *pipe, + vbuf_draw_func draw ); + + +#endif /* SP_PRIM_SETUP_H */ diff --git a/src/gallium/drivers/softpipe/sp_prim_vbuf.c b/src/gallium/drivers/softpipe/sp_prim_vbuf.c new file mode 100644 index 00000000000..425e13cd283 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_prim_vbuf.c @@ -0,0 +1,405 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * Post-transform vertex buffering. This is an optional part of the + * softpipe rendering pipeline. + * Probably not desired in general, but useful for testing/debuggin. + * Enabled/Disabled with SP_VBUF env var. + * + * Authors + * Brian Paul + */ + + +#include "sp_context.h" +#include "sp_state.h" +#include "sp_prim_vbuf.h" +#include "sp_prim_setup.h" +#include "sp_setup.h" +#include "draw/draw_context.h" +#include "draw/draw_vbuf.h" +#include "util/u_memory.h" + + +#define SP_MAX_VBUF_INDEXES 1024 +#define SP_MAX_VBUF_SIZE 4096 + +typedef const float (*cptrf4)[4]; + +/** + * Subclass of vbuf_render. + */ +struct softpipe_vbuf_render +{ + struct vbuf_render base; + struct softpipe_context *softpipe; + uint prim; + uint vertex_size; + void *vertex_buffer; +}; + + +/** cast wrapper */ +static struct softpipe_vbuf_render * +softpipe_vbuf_render(struct vbuf_render *vbr) +{ + return (struct softpipe_vbuf_render *) vbr; +} + + +static const struct vertex_info * +sp_vbuf_get_vertex_info(struct vbuf_render *vbr) +{ + struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr); + return softpipe_get_vbuf_vertex_info(cvbr->softpipe); +} + + +static void * +sp_vbuf_allocate_vertices(struct vbuf_render *vbr, + ushort vertex_size, ushort nr_vertices) +{ + struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr); + assert(!cvbr->vertex_buffer); + cvbr->vertex_buffer = align_malloc(vertex_size * nr_vertices, 16); + cvbr->vertex_size = vertex_size; + return cvbr->vertex_buffer; +} + + +static void +sp_vbuf_release_vertices(struct vbuf_render *vbr, void *vertices, + unsigned vertex_size, unsigned vertices_used) +{ + struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr); + align_free(vertices); + assert(vertices == cvbr->vertex_buffer); + cvbr->vertex_buffer = NULL; +} + + +static boolean +sp_vbuf_set_primitive(struct vbuf_render *vbr, unsigned prim) +{ + struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr); + + /* XXX: break this dependency - make setup_context live under + * softpipe, rename the old "setup" draw stage to something else. + */ + struct setup_context *setup_ctx = sp_draw_setup_context(cvbr->softpipe->setup); + + setup_prepare( setup_ctx ); + + + + cvbr->prim = prim; + return TRUE; + +} + + +static INLINE cptrf4 get_vert( const void *vertex_buffer, + int index, + int stride ) +{ + return (cptrf4)((char *)vertex_buffer + index * stride); +} + + +static void +sp_vbuf_draw(struct vbuf_render *vbr, const ushort *indices, uint nr) +{ + struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr); + struct softpipe_context *softpipe = cvbr->softpipe; + unsigned stride = softpipe->vertex_info_vbuf.size * sizeof(float); + unsigned i; + const void *vertex_buffer = cvbr->vertex_buffer; + + /* XXX: break this dependency - make setup_context live under + * softpipe, rename the old "setup" draw stage to something else. + */ + struct draw_stage *setup = softpipe->setup; + struct setup_context *setup_ctx = sp_draw_setup_context(softpipe->setup); + + + switch (cvbr->prim) { + case PIPE_PRIM_POINTS: + for (i = 0; i < nr; i++) { + setup_point( setup_ctx, + get_vert(vertex_buffer, indices[i-0], stride) ); + } + break; + + case PIPE_PRIM_LINES: + for (i = 1; i < nr; i += 2) { + setup_line( setup_ctx, + get_vert(vertex_buffer, indices[i-1], stride), + get_vert(vertex_buffer, indices[i-0], stride) ); + } + break; + + case PIPE_PRIM_LINE_STRIP: + for (i = 1; i < nr; i ++) { + setup_line( setup_ctx, + get_vert(vertex_buffer, indices[i-1], stride), + get_vert(vertex_buffer, indices[i-0], stride) ); + } + break; + + case PIPE_PRIM_LINE_LOOP: + for (i = 1; i < nr; i ++) { + setup_line( setup_ctx, + get_vert(vertex_buffer, indices[i-1], stride), + get_vert(vertex_buffer, indices[i-0], stride) ); + } + if (nr) { + setup_line( setup_ctx, + get_vert(vertex_buffer, indices[nr-1], stride), + get_vert(vertex_buffer, indices[0], stride) ); + } + break; + + + case PIPE_PRIM_TRIANGLES: + for (i = 2; i < nr; i += 3) { + setup_tri( setup_ctx, + get_vert(vertex_buffer, indices[i-2], stride), + get_vert(vertex_buffer, indices[i-1], stride), + get_vert(vertex_buffer, indices[i-0], stride)); + } + break; + + case PIPE_PRIM_TRIANGLE_STRIP: + for (i = 2; i < nr; i += 1) { + setup_tri( setup_ctx, + get_vert(vertex_buffer, indices[i+(i&1)-2], stride), + get_vert(vertex_buffer, indices[i-(i&1)-1], stride), + get_vert(vertex_buffer, indices[i-0], stride)); + } + break; + + case PIPE_PRIM_TRIANGLE_FAN: + case PIPE_PRIM_POLYGON: + for (i = 2; i < nr; i += 1) { + setup_tri( setup_ctx, + get_vert(vertex_buffer, indices[0], stride), + get_vert(vertex_buffer, indices[i-1], stride), + get_vert(vertex_buffer, indices[i-0], stride)); + } + break; + case PIPE_PRIM_QUADS: + for (i = 3; i < nr; i += 4) { + setup_tri( setup_ctx, + get_vert(vertex_buffer, indices[i-3], stride), + get_vert(vertex_buffer, indices[i-2], stride), + get_vert(vertex_buffer, indices[i-0], stride)); + + setup_tri( setup_ctx, + get_vert(vertex_buffer, indices[i-2], stride), + get_vert(vertex_buffer, indices[i-1], stride), + get_vert(vertex_buffer, indices[i-0], stride)); + } + break; + case PIPE_PRIM_QUAD_STRIP: + for (i = 3; i < nr; i += 2) { + setup_tri( setup_ctx, + get_vert(vertex_buffer, indices[i-3], stride), + get_vert(vertex_buffer, indices[i-2], stride), + get_vert(vertex_buffer, indices[i-0], stride)); + + setup_tri( setup_ctx, + get_vert(vertex_buffer, indices[i-1], stride), + get_vert(vertex_buffer, indices[i-3], stride), + get_vert(vertex_buffer, indices[i-0], stride)); + } + break; + default: + assert(0); + } + + /* XXX: why are we calling this??? If we had to call something, it + * would be a function in sp_setup.c: + */ + sp_draw_flush( setup ); +} + + +/** + * This function is hit when the draw module is working in pass-through mode. + * It's up to us to convert the vertex array into point/line/tri prims. + */ +static void +sp_vbuf_draw_arrays(struct vbuf_render *vbr, uint start, uint nr) +{ + struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr); + struct softpipe_context *softpipe = cvbr->softpipe; + struct draw_stage *setup = softpipe->setup; + const void *vertex_buffer = NULL; + const unsigned stride = softpipe->vertex_info_vbuf.size * sizeof(float); + unsigned i; + struct setup_context *setup_ctx = sp_draw_setup_context(setup); + + vertex_buffer = (void *)get_vert(cvbr->vertex_buffer, start, stride); + + switch (cvbr->prim) { + case PIPE_PRIM_POINTS: + for (i = 0; i < nr; i++) { + setup_point( setup_ctx, + get_vert(vertex_buffer, i-0, stride) ); + } + break; + + case PIPE_PRIM_LINES: + for (i = 1; i < nr; i += 2) { + setup_line( setup_ctx, + get_vert(vertex_buffer, i-1, stride), + get_vert(vertex_buffer, i-0, stride) ); + } + break; + + case PIPE_PRIM_LINE_STRIP: + for (i = 1; i < nr; i ++) { + setup_line( setup_ctx, + get_vert(vertex_buffer, i-1, stride), + get_vert(vertex_buffer, i-0, stride) ); + } + break; + + case PIPE_PRIM_LINE_LOOP: + for (i = 1; i < nr; i ++) { + setup_line( setup_ctx, + get_vert(vertex_buffer, i-1, stride), + get_vert(vertex_buffer, i-0, stride) ); + } + if (nr) { + setup_line( setup_ctx, + get_vert(vertex_buffer, nr-1, stride), + get_vert(vertex_buffer, 0, stride) ); + } + break; + + + case PIPE_PRIM_TRIANGLES: + for (i = 2; i < nr; i += 3) { + setup_tri( setup_ctx, + get_vert(vertex_buffer, i-2, stride), + get_vert(vertex_buffer, i-1, stride), + get_vert(vertex_buffer, i-0, stride)); + } + break; + + case PIPE_PRIM_TRIANGLE_STRIP: + for (i = 2; i < nr; i += 1) { + setup_tri( setup_ctx, + get_vert(vertex_buffer, i+(i&1)-2, stride), + get_vert(vertex_buffer, i-(i&1)-1, stride), + get_vert(vertex_buffer, i-0, stride)); + } + break; + + case PIPE_PRIM_TRIANGLE_FAN: + case PIPE_PRIM_POLYGON: + for (i = 2; i < nr; i += 1) { + setup_tri( setup_ctx, + get_vert(vertex_buffer, 0, stride), + get_vert(vertex_buffer, i-1, stride), + get_vert(vertex_buffer, i-0, stride)); + } + break; + case PIPE_PRIM_QUADS: + for (i = 3; i < nr; i += 4) { + setup_tri( setup_ctx, + get_vert(vertex_buffer, i-3, stride), + get_vert(vertex_buffer, i-2, stride), + get_vert(vertex_buffer, i-0, stride)); + + setup_tri( setup_ctx, + get_vert(vertex_buffer, i-2, stride), + get_vert(vertex_buffer, i-1, stride), + get_vert(vertex_buffer, i-0, stride)); + } + break; + case PIPE_PRIM_QUAD_STRIP: + for (i = 3; i < nr; i += 2) { + setup_tri( setup_ctx, + get_vert(vertex_buffer, i-3, stride), + get_vert(vertex_buffer, i-2, stride), + get_vert(vertex_buffer, i-0, stride)); + + setup_tri( setup_ctx, + get_vert(vertex_buffer, i-1, stride), + get_vert(vertex_buffer, i-3, stride), + get_vert(vertex_buffer, i-0, stride)); + } + break; + default: + assert(0); + } +} + + + +static void +sp_vbuf_destroy(struct vbuf_render *vbr) +{ + struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr); + cvbr->softpipe->vbuf_render = NULL; + FREE(cvbr); +} + + +/** + * Initialize the post-transform vertex buffer information for the given + * context. + */ +void +sp_init_vbuf(struct softpipe_context *sp) +{ + assert(sp->draw); + + sp->vbuf_render = CALLOC_STRUCT(softpipe_vbuf_render); + + sp->vbuf_render->base.max_indices = SP_MAX_VBUF_INDEXES; + sp->vbuf_render->base.max_vertex_buffer_bytes = SP_MAX_VBUF_SIZE; + + sp->vbuf_render->base.get_vertex_info = sp_vbuf_get_vertex_info; + sp->vbuf_render->base.allocate_vertices = sp_vbuf_allocate_vertices; + sp->vbuf_render->base.set_primitive = sp_vbuf_set_primitive; + sp->vbuf_render->base.draw = sp_vbuf_draw; + sp->vbuf_render->base.draw_arrays = sp_vbuf_draw_arrays; + sp->vbuf_render->base.release_vertices = sp_vbuf_release_vertices; + sp->vbuf_render->base.destroy = sp_vbuf_destroy; + + sp->vbuf_render->softpipe = sp; + + sp->vbuf = draw_vbuf_stage(sp->draw, &sp->vbuf_render->base); + + draw_set_rasterize_stage(sp->draw, sp->vbuf); + + draw_set_render(sp->draw, &sp->vbuf_render->base); +} diff --git a/src/gallium/drivers/softpipe/sp_prim_vbuf.h b/src/gallium/drivers/softpipe/sp_prim_vbuf.h new file mode 100644 index 00000000000..1de9cc2a894 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_prim_vbuf.h @@ -0,0 +1,38 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#ifndef SP_VBUF_H +#define SP_VBUF_H + + +struct softpipe_context; + +extern void +sp_init_vbuf(struct softpipe_context *softpipe); + + +#endif /* SP_VBUF_H */ diff --git a/src/gallium/drivers/softpipe/sp_quad.c b/src/gallium/drivers/softpipe/sp_quad.c new file mode 100644 index 00000000000..bc83d78ea16 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_quad.c @@ -0,0 +1,112 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +#include "sp_context.h" +#include "sp_state.h" +#include "pipe/p_shader_tokens.h" + +static void +sp_push_quad_first( + struct softpipe_context *sp, + struct quad_stage *quad ) +{ + quad->next = sp->quad.first; + sp->quad.first = quad; +} + +static void +sp_build_depth_stencil( + struct softpipe_context *sp ) +{ + if (sp->depth_stencil->stencil[0].enabled || + sp->depth_stencil->stencil[1].enabled) { + sp_push_quad_first( sp, sp->quad.stencil_test ); + } + else if (sp->depth_stencil->depth.enabled && + sp->framebuffer.zsbuf) { + sp_push_quad_first( sp, sp->quad.depth_test ); + } +} + +void +sp_build_quad_pipeline(struct softpipe_context *sp) +{ + boolean early_depth_test = + sp->depth_stencil->depth.enabled && + sp->framebuffer.zsbuf && + !sp->depth_stencil->alpha.enabled && + !sp->fs->info.uses_kill && + !sp->fs->info.writes_z; + + /* build up the pipeline in reverse order... */ + + sp->quad.first = sp->quad.output; + + if (sp->blend->colormask != 0xf) { + sp_push_quad_first( sp, sp->quad.colormask ); + } + + if (sp->blend->blend_enable || + sp->blend->logicop_enable) { + sp_push_quad_first( sp, sp->quad.blend ); + } + + if (sp->depth_stencil->depth.occlusion_count) { + sp_push_quad_first( sp, sp->quad.occlusion ); + } + + if (sp->rasterizer->poly_smooth || + sp->rasterizer->line_smooth || + sp->rasterizer->point_smooth) { + sp_push_quad_first( sp, sp->quad.coverage ); + } + + if (!early_depth_test) { + sp_build_depth_stencil( sp ); + } + + if (sp->depth_stencil->alpha.enabled) { + sp_push_quad_first( sp, sp->quad.alpha_test ); + } + + /* XXX always enable shader? */ + if (1) { + sp_push_quad_first( sp, sp->quad.shade ); + } + + if (early_depth_test) { + sp_build_depth_stencil( sp ); + sp_push_quad_first( sp, sp->quad.earlyz ); + } + +#if !USE_DRAW_STAGE_PSTIPPLE + if (sp->rasterizer->poly_stipple_enable) { + sp_push_quad_first( sp, sp->quad.polygon_stipple ); + } +#endif +} diff --git a/src/gallium/drivers/softpipe/sp_quad.h b/src/gallium/drivers/softpipe/sp_quad.h new file mode 100644 index 00000000000..08513cb95f1 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_quad.h @@ -0,0 +1,69 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + +#ifndef SP_QUAD_H +#define SP_QUAD_H + + +struct softpipe_context; +struct quad_header; + + +struct quad_stage { + struct softpipe_context *softpipe; + + struct quad_stage *next; + + void (*begin)(struct quad_stage *qs); + + /** the stage action */ + void (*run)(struct quad_stage *qs, struct quad_header *quad); + + void (*destroy)(struct quad_stage *qs); +}; + + +struct quad_stage *sp_quad_polygon_stipple_stage( struct softpipe_context *softpipe ); +struct quad_stage *sp_quad_earlyz_stage( struct softpipe_context *softpipe ); +struct quad_stage *sp_quad_shade_stage( struct softpipe_context *softpipe ); +struct quad_stage *sp_quad_alpha_test_stage( struct softpipe_context *softpipe ); +struct quad_stage *sp_quad_stencil_test_stage( struct softpipe_context *softpipe ); +struct quad_stage *sp_quad_depth_test_stage( struct softpipe_context *softpipe ); +struct quad_stage *sp_quad_occlusion_stage( struct softpipe_context *softpipe ); +struct quad_stage *sp_quad_coverage_stage( struct softpipe_context *softpipe ); +struct quad_stage *sp_quad_blend_stage( struct softpipe_context *softpipe ); +struct quad_stage *sp_quad_colormask_stage( struct softpipe_context *softpipe ); +struct quad_stage *sp_quad_output_stage( struct softpipe_context *softpipe ); + +void sp_build_quad_pipeline(struct softpipe_context *sp); + +void sp_depth_test_quad(struct quad_stage *qs, struct quad_header *quad); + +#endif /* SP_QUAD_H */ diff --git a/src/gallium/drivers/softpipe/sp_quad_alpha_test.c b/src/gallium/drivers/softpipe/sp_quad_alpha_test.c new file mode 100644 index 00000000000..7d3580fb4f2 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_quad_alpha_test.c @@ -0,0 +1,109 @@ + +/** + * quad alpha test + */ + +#include "sp_context.h" +#include "sp_headers.h" +#include "sp_quad.h" +#include "pipe/p_defines.h" +#include "util/u_memory.h" + + +static void +alpha_test_quad(struct quad_stage *qs, struct quad_header *quad) +{ + struct softpipe_context *softpipe = qs->softpipe; + const float ref = softpipe->depth_stencil->alpha.ref; + unsigned passMask = 0x0, j; + const uint cbuf = 0; /* only output[0].alpha is tested */ + const float *aaaa = quad->outputs.color[cbuf][3]; + + switch (softpipe->depth_stencil->alpha.func) { + case PIPE_FUNC_NEVER: + quad->mask = 0x0; + break; + case PIPE_FUNC_LESS: + /* + * If mask were an array [4] we could do this SIMD-style: + * passMask = (quad->outputs.color[0][3] <= vec4(ref)); + */ + for (j = 0; j < QUAD_SIZE; j++) { + if (aaaa[j] < ref) { + passMask |= (1 << j); + } + } + break; + case PIPE_FUNC_EQUAL: + for (j = 0; j < QUAD_SIZE; j++) { + if (aaaa[j] == ref) { + passMask |= (1 << j); + } + } + break; + case PIPE_FUNC_LEQUAL: + for (j = 0; j < QUAD_SIZE; j++) { + if (aaaa[j] <= ref) { + passMask |= (1 << j); + } + } + break; + case PIPE_FUNC_GREATER: + for (j = 0; j < QUAD_SIZE; j++) { + if (aaaa[j] > ref) { + passMask |= (1 << j); + } + } + break; + case PIPE_FUNC_NOTEQUAL: + for (j = 0; j < QUAD_SIZE; j++) { + if (aaaa[j] != ref) { + passMask |= (1 << j); + } + } + break; + case PIPE_FUNC_GEQUAL: + for (j = 0; j < QUAD_SIZE; j++) { + if (aaaa[j] >= ref) { + passMask |= (1 << j); + } + } + break; + case PIPE_FUNC_ALWAYS: + passMask = MASK_ALL; + break; + default: + assert(0); + } + + quad->mask &= passMask; + + if (quad->mask) + qs->next->run(qs->next, quad); +} + + +static void alpha_test_begin(struct quad_stage *qs) +{ + qs->next->begin(qs->next); +} + + +static void alpha_test_destroy(struct quad_stage *qs) +{ + FREE( qs ); +} + + +struct quad_stage * +sp_quad_alpha_test_stage( struct softpipe_context *softpipe ) +{ + struct quad_stage *stage = CALLOC_STRUCT(quad_stage); + + stage->softpipe = softpipe; + stage->begin = alpha_test_begin; + stage->run = alpha_test_quad; + stage->destroy = alpha_test_destroy; + + return stage; +} diff --git a/src/gallium/drivers/softpipe/sp_quad_blend.c b/src/gallium/drivers/softpipe/sp_quad_blend.c new file mode 100644 index 00000000000..a834accb863 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_quad_blend.c @@ -0,0 +1,759 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * quad blending + * \author Brian Paul + */ + +#include "pipe/p_defines.h" +#include "util/u_math.h" +#include "util/u_memory.h" +#include "sp_context.h" +#include "sp_headers.h" +#include "sp_surface.h" +#include "sp_tile_cache.h" +#include "sp_quad.h" + + +#define VEC4_COPY(DST, SRC) \ +do { \ + DST[0] = SRC[0]; \ + DST[1] = SRC[1]; \ + DST[2] = SRC[2]; \ + DST[3] = SRC[3]; \ +} while(0) + +#define VEC4_SCALAR(DST, SRC) \ +do { \ + DST[0] = SRC; \ + DST[1] = SRC; \ + DST[2] = SRC; \ + DST[3] = SRC; \ +} while(0) + +#define VEC4_ADD(R, A, B) \ +do { \ + R[0] = A[0] + B[0]; \ + R[1] = A[1] + B[1]; \ + R[2] = A[2] + B[2]; \ + R[3] = A[3] + B[3]; \ +} while (0) + +#define VEC4_SUB(R, A, B) \ +do { \ + R[0] = A[0] - B[0]; \ + R[1] = A[1] - B[1]; \ + R[2] = A[2] - B[2]; \ + R[3] = A[3] - B[3]; \ +} while (0) + +#define VEC4_MUL(R, A, B) \ +do { \ + R[0] = A[0] * B[0]; \ + R[1] = A[1] * B[1]; \ + R[2] = A[2] * B[2]; \ + R[3] = A[3] * B[3]; \ +} while (0) + +#define VEC4_MIN(R, A, B) \ +do { \ + R[0] = (A[0] < B[0]) ? A[0] : B[0]; \ + R[1] = (A[1] < B[1]) ? A[1] : B[1]; \ + R[2] = (A[2] < B[2]) ? A[2] : B[2]; \ + R[3] = (A[3] < B[3]) ? A[3] : B[3]; \ +} while (0) + +#define VEC4_MAX(R, A, B) \ +do { \ + R[0] = (A[0] > B[0]) ? A[0] : B[0]; \ + R[1] = (A[1] > B[1]) ? A[1] : B[1]; \ + R[2] = (A[2] > B[2]) ? A[2] : B[2]; \ + R[3] = (A[3] > B[3]) ? A[3] : B[3]; \ +} while (0) + + + +static void +logicop_quad(struct quad_stage *qs, struct quad_header *quad) +{ + struct softpipe_context *softpipe = qs->softpipe; + uint cbuf; + + /* loop over colorbuffer outputs */ + for (cbuf = 0; cbuf < softpipe->framebuffer.num_cbufs; cbuf++) { + float dest[4][QUAD_SIZE]; + ubyte src[4][4], dst[4][4], res[4][4]; + uint *src4 = (uint *) src; + uint *dst4 = (uint *) dst; + uint *res4 = (uint *) res; + struct softpipe_cached_tile * + tile = sp_get_cached_tile(softpipe, + softpipe->cbuf_cache[cbuf], + quad->x0, quad->y0); + float (*quadColor)[4] = quad->outputs.color[cbuf]; + uint i, j; + + /* get/swizzle dest colors */ + for (j = 0; j < QUAD_SIZE; j++) { + int x = (quad->x0 & (TILE_SIZE-1)) + (j & 1); + int y = (quad->y0 & (TILE_SIZE-1)) + (j >> 1); + for (i = 0; i < 4; i++) { + dest[i][j] = tile->data.color[y][x][i]; + } + } + + /* convert to ubyte */ + for (j = 0; j < 4; j++) { /* loop over R,G,B,A channels */ + dst[j][0] = float_to_ubyte(dest[j][0]); /* P0 */ + dst[j][1] = float_to_ubyte(dest[j][1]); /* P1 */ + dst[j][2] = float_to_ubyte(dest[j][2]); /* P2 */ + dst[j][3] = float_to_ubyte(dest[j][3]); /* P3 */ + + src[j][0] = float_to_ubyte(quadColor[j][0]); /* P0 */ + src[j][1] = float_to_ubyte(quadColor[j][1]); /* P1 */ + src[j][2] = float_to_ubyte(quadColor[j][2]); /* P2 */ + src[j][3] = float_to_ubyte(quadColor[j][3]); /* P3 */ + } + + switch (softpipe->blend->logicop_func) { + case PIPE_LOGICOP_CLEAR: + for (j = 0; j < 4; j++) + res4[j] = 0; + break; + case PIPE_LOGICOP_NOR: + for (j = 0; j < 4; j++) + res4[j] = ~(src4[j] | dst4[j]); + break; + case PIPE_LOGICOP_AND_INVERTED: + for (j = 0; j < 4; j++) + res4[j] = ~src4[j] & dst4[j]; + break; + case PIPE_LOGICOP_COPY_INVERTED: + for (j = 0; j < 4; j++) + res4[j] = ~src4[j]; + break; + case PIPE_LOGICOP_AND_REVERSE: + for (j = 0; j < 4; j++) + res4[j] = src4[j] & ~dst4[j]; + break; + case PIPE_LOGICOP_INVERT: + for (j = 0; j < 4; j++) + res4[j] = ~dst4[j]; + break; + case PIPE_LOGICOP_XOR: + for (j = 0; j < 4; j++) + res4[j] = dst4[j] ^ src4[j]; + break; + case PIPE_LOGICOP_NAND: + for (j = 0; j < 4; j++) + res4[j] = ~(src4[j] & dst4[j]); + break; + case PIPE_LOGICOP_AND: + for (j = 0; j < 4; j++) + res4[j] = src4[j] & dst4[j]; + break; + case PIPE_LOGICOP_EQUIV: + for (j = 0; j < 4; j++) + res4[j] = ~(src4[j] ^ dst4[j]); + break; + case PIPE_LOGICOP_NOOP: + for (j = 0; j < 4; j++) + res4[j] = dst4[j]; + break; + case PIPE_LOGICOP_OR_INVERTED: + for (j = 0; j < 4; j++) + res4[j] = ~src4[j] | dst4[j]; + break; + case PIPE_LOGICOP_COPY: + for (j = 0; j < 4; j++) + res4[j] = src4[j]; + break; + case PIPE_LOGICOP_OR_REVERSE: + for (j = 0; j < 4; j++) + res4[j] = src4[j] | ~dst4[j]; + break; + case PIPE_LOGICOP_OR: + for (j = 0; j < 4; j++) + res4[j] = src4[j] | dst4[j]; + break; + case PIPE_LOGICOP_SET: + for (j = 0; j < 4; j++) + res4[j] = ~0; + break; + default: + assert(0); + } + + for (j = 0; j < 4; j++) { + quadColor[j][0] = ubyte_to_float(res[j][0]); + quadColor[j][1] = ubyte_to_float(res[j][1]); + quadColor[j][2] = ubyte_to_float(res[j][2]); + quadColor[j][3] = ubyte_to_float(res[j][3]); + } + } + + /* pass quad to next stage */ + qs->next->run(qs->next, quad); +} + + + + +static void +blend_quad(struct quad_stage *qs, struct quad_header *quad) +{ + static const float zero[4] = { 0, 0, 0, 0 }; + static const float one[4] = { 1, 1, 1, 1 }; + + struct softpipe_context *softpipe = qs->softpipe; + uint cbuf; + + if (softpipe->blend->logicop_enable) { + logicop_quad(qs, quad); + return; + } + + /* loop over colorbuffer outputs */ + for (cbuf = 0; cbuf < softpipe->framebuffer.num_cbufs; cbuf++) { + float source[4][QUAD_SIZE], dest[4][QUAD_SIZE]; + struct softpipe_cached_tile *tile + = sp_get_cached_tile(softpipe, + softpipe->cbuf_cache[cbuf], + quad->x0, quad->y0); + float (*quadColor)[4] = quad->outputs.color[cbuf]; + uint i, j; + + /* get/swizzle dest colors */ + for (j = 0; j < QUAD_SIZE; j++) { + int x = (quad->x0 & (TILE_SIZE-1)) + (j & 1); + int y = (quad->y0 & (TILE_SIZE-1)) + (j >> 1); + for (i = 0; i < 4; i++) { + dest[i][j] = tile->data.color[y][x][i]; + } + } + + /* + * Compute src/first term RGB + */ + switch (softpipe->blend->rgb_src_factor) { + case PIPE_BLENDFACTOR_ONE: + VEC4_COPY(source[0], quadColor[0]); /* R */ + VEC4_COPY(source[1], quadColor[1]); /* G */ + VEC4_COPY(source[2], quadColor[2]); /* B */ + break; + case PIPE_BLENDFACTOR_SRC_COLOR: + VEC4_MUL(source[0], quadColor[0], quadColor[0]); /* R */ + VEC4_MUL(source[1], quadColor[1], quadColor[1]); /* G */ + VEC4_MUL(source[2], quadColor[2], quadColor[2]); /* B */ + break; + case PIPE_BLENDFACTOR_SRC_ALPHA: + { + const float *alpha = quadColor[3]; + VEC4_MUL(source[0], quadColor[0], alpha); /* R */ + VEC4_MUL(source[1], quadColor[1], alpha); /* G */ + VEC4_MUL(source[2], quadColor[2], alpha); /* B */ + } + break; + case PIPE_BLENDFACTOR_DST_COLOR: + VEC4_MUL(source[0], quadColor[0], dest[0]); /* R */ + VEC4_MUL(source[1], quadColor[1], dest[1]); /* G */ + VEC4_MUL(source[2], quadColor[2], dest[2]); /* B */ + break; + case PIPE_BLENDFACTOR_DST_ALPHA: + { + const float *alpha = dest[3]; + VEC4_MUL(source[0], quadColor[0], alpha); /* R */ + VEC4_MUL(source[1], quadColor[1], alpha); /* G */ + VEC4_MUL(source[2], quadColor[2], alpha); /* B */ + } + break; + case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE: + { + const float *alpha = quadColor[3]; + float diff[4], temp[4]; + VEC4_SUB(diff, one, dest[3]); + VEC4_MIN(temp, alpha, diff); + VEC4_MUL(source[0], quadColor[0], temp); /* R */ + VEC4_MUL(source[1], quadColor[1], temp); /* G */ + VEC4_MUL(source[2], quadColor[2], temp); /* B */ + } + break; + case PIPE_BLENDFACTOR_CONST_COLOR: + { + float comp[4]; + VEC4_SCALAR(comp, softpipe->blend_color.color[0]); /* R */ + VEC4_MUL(source[0], quadColor[0], comp); /* R */ + VEC4_SCALAR(comp, softpipe->blend_color.color[1]); /* G */ + VEC4_MUL(source[1], quadColor[1], comp); /* G */ + VEC4_SCALAR(comp, softpipe->blend_color.color[2]); /* B */ + VEC4_MUL(source[2], quadColor[2], comp); /* B */ + } + break; + case PIPE_BLENDFACTOR_CONST_ALPHA: + { + float alpha[4]; + VEC4_SCALAR(alpha, softpipe->blend_color.color[3]); + VEC4_MUL(source[0], quadColor[0], alpha); /* R */ + VEC4_MUL(source[1], quadColor[1], alpha); /* G */ + VEC4_MUL(source[2], quadColor[2], alpha); /* B */ + } + break; + case PIPE_BLENDFACTOR_SRC1_COLOR: + assert(0); /* to do */ + break; + case PIPE_BLENDFACTOR_SRC1_ALPHA: + assert(0); /* to do */ + break; + case PIPE_BLENDFACTOR_ZERO: + VEC4_COPY(source[0], zero); /* R */ + VEC4_COPY(source[1], zero); /* G */ + VEC4_COPY(source[2], zero); /* B */ + break; + case PIPE_BLENDFACTOR_INV_SRC_COLOR: + { + float inv_comp[4]; + VEC4_SUB(inv_comp, one, quadColor[0]); /* R */ + VEC4_MUL(source[0], quadColor[0], inv_comp); /* R */ + VEC4_SUB(inv_comp, one, quadColor[1]); /* G */ + VEC4_MUL(source[1], quadColor[1], inv_comp); /* G */ + VEC4_SUB(inv_comp, one, quadColor[2]); /* B */ + VEC4_MUL(source[2], quadColor[2], inv_comp); /* B */ + } + break; + case PIPE_BLENDFACTOR_INV_SRC_ALPHA: + { + float inv_alpha[4]; + VEC4_SUB(inv_alpha, one, quadColor[3]); + VEC4_MUL(source[0], quadColor[0], inv_alpha); /* R */ + VEC4_MUL(source[1], quadColor[1], inv_alpha); /* G */ + VEC4_MUL(source[2], quadColor[2], inv_alpha); /* B */ + } + break; + case PIPE_BLENDFACTOR_INV_DST_ALPHA: + { + float inv_alpha[4]; + VEC4_SUB(inv_alpha, one, dest[3]); + VEC4_MUL(source[0], quadColor[0], inv_alpha); /* R */ + VEC4_MUL(source[1], quadColor[1], inv_alpha); /* G */ + VEC4_MUL(source[2], quadColor[2], inv_alpha); /* B */ + } + break; + case PIPE_BLENDFACTOR_INV_DST_COLOR: + { + float inv_comp[4]; + VEC4_SUB(inv_comp, one, dest[0]); /* R */ + VEC4_MUL(source[0], quadColor[0], inv_comp); /* R */ + VEC4_SUB(inv_comp, one, dest[1]); /* G */ + VEC4_MUL(source[1], quadColor[1], inv_comp); /* G */ + VEC4_SUB(inv_comp, one, dest[2]); /* B */ + VEC4_MUL(source[2], quadColor[2], inv_comp); /* B */ + } + break; + case PIPE_BLENDFACTOR_INV_CONST_COLOR: + { + float inv_comp[4]; + /* R */ + VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[0]); + VEC4_MUL(source[0], quadColor[0], inv_comp); + /* G */ + VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[1]); + VEC4_MUL(source[1], quadColor[1], inv_comp); + /* B */ + VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[2]); + VEC4_MUL(source[2], quadColor[2], inv_comp); + } + break; + case PIPE_BLENDFACTOR_INV_CONST_ALPHA: + { + float inv_alpha[4]; + VEC4_SCALAR(inv_alpha, 1.0f - softpipe->blend_color.color[3]); + VEC4_MUL(source[0], quadColor[0], inv_alpha); /* R */ + VEC4_MUL(source[1], quadColor[1], inv_alpha); /* G */ + VEC4_MUL(source[2], quadColor[2], inv_alpha); /* B */ + } + break; + case PIPE_BLENDFACTOR_INV_SRC1_COLOR: + assert(0); /* to do */ + break; + case PIPE_BLENDFACTOR_INV_SRC1_ALPHA: + assert(0); /* to do */ + break; + default: + assert(0); + } + + /* + * Compute src/first term A + */ + switch (softpipe->blend->alpha_src_factor) { + case PIPE_BLENDFACTOR_ONE: + VEC4_COPY(source[3], quadColor[3]); /* A */ + break; + case PIPE_BLENDFACTOR_SRC_COLOR: + /* fall-through */ + case PIPE_BLENDFACTOR_SRC_ALPHA: + { + const float *alpha = quadColor[3]; + VEC4_MUL(source[3], quadColor[3], alpha); /* A */ + } + break; + case PIPE_BLENDFACTOR_DST_COLOR: + /* fall-through */ + case PIPE_BLENDFACTOR_DST_ALPHA: + VEC4_MUL(source[3], quadColor[3], dest[3]); /* A */ + break; + case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE: + /* multiply alpha by 1.0 */ + VEC4_COPY(source[3], quadColor[3]); /* A */ + break; + case PIPE_BLENDFACTOR_CONST_COLOR: + /* fall-through */ + case PIPE_BLENDFACTOR_CONST_ALPHA: + { + float comp[4]; + VEC4_SCALAR(comp, softpipe->blend_color.color[3]); /* A */ + VEC4_MUL(source[3], quadColor[3], comp); /* A */ + } + break; + case PIPE_BLENDFACTOR_ZERO: + VEC4_COPY(source[3], zero); /* A */ + break; + case PIPE_BLENDFACTOR_INV_SRC_COLOR: + /* fall-through */ + case PIPE_BLENDFACTOR_INV_SRC_ALPHA: + { + float inv_alpha[4]; + VEC4_SUB(inv_alpha, one, quadColor[3]); + VEC4_MUL(source[3], quadColor[3], inv_alpha); /* A */ + } + break; + case PIPE_BLENDFACTOR_INV_DST_COLOR: + /* fall-through */ + case PIPE_BLENDFACTOR_INV_DST_ALPHA: + { + float inv_alpha[4]; + VEC4_SUB(inv_alpha, one, dest[3]); + VEC4_MUL(source[3], quadColor[3], inv_alpha); /* A */ + } + break; + case PIPE_BLENDFACTOR_INV_CONST_COLOR: + /* fall-through */ + case PIPE_BLENDFACTOR_INV_CONST_ALPHA: + { + float inv_comp[4]; + /* A */ + VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[3]); + VEC4_MUL(source[3], quadColor[3], inv_comp); + } + break; + default: + assert(0); + } + + + /* + * Compute dest/second term RGB + */ + switch (softpipe->blend->rgb_dst_factor) { + case PIPE_BLENDFACTOR_ONE: + /* dest = dest * 1 NO-OP, leave dest as-is */ + break; + case PIPE_BLENDFACTOR_SRC_COLOR: + VEC4_MUL(dest[0], dest[0], quadColor[0]); /* R */ + VEC4_MUL(dest[1], dest[1], quadColor[1]); /* G */ + VEC4_MUL(dest[2], dest[2], quadColor[2]); /* B */ + break; + case PIPE_BLENDFACTOR_SRC_ALPHA: + VEC4_MUL(dest[0], dest[0], quadColor[3]); /* R * A */ + VEC4_MUL(dest[1], dest[1], quadColor[3]); /* G * A */ + VEC4_MUL(dest[2], dest[2], quadColor[3]); /* B * A */ + break; + case PIPE_BLENDFACTOR_DST_ALPHA: + VEC4_MUL(dest[0], dest[0], dest[3]); /* R * A */ + VEC4_MUL(dest[1], dest[1], dest[3]); /* G * A */ + VEC4_MUL(dest[2], dest[2], dest[3]); /* B * A */ + break; + case PIPE_BLENDFACTOR_DST_COLOR: + VEC4_MUL(dest[0], dest[0], dest[0]); /* R */ + VEC4_MUL(dest[1], dest[1], dest[1]); /* G */ + VEC4_MUL(dest[2], dest[2], dest[2]); /* B */ + break; + case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE: + assert(0); /* illegal */ + break; + case PIPE_BLENDFACTOR_CONST_COLOR: + { + float comp[4]; + VEC4_SCALAR(comp, softpipe->blend_color.color[0]); /* R */ + VEC4_MUL(dest[0], dest[0], comp); /* R */ + VEC4_SCALAR(comp, softpipe->blend_color.color[1]); /* G */ + VEC4_MUL(dest[1], dest[1], comp); /* G */ + VEC4_SCALAR(comp, softpipe->blend_color.color[2]); /* B */ + VEC4_MUL(dest[2], dest[2], comp); /* B */ + } + break; + case PIPE_BLENDFACTOR_CONST_ALPHA: + { + float comp[4]; + VEC4_SCALAR(comp, softpipe->blend_color.color[3]); /* A */ + VEC4_MUL(dest[0], dest[0], comp); /* R */ + VEC4_MUL(dest[1], dest[1], comp); /* G */ + VEC4_MUL(dest[2], dest[2], comp); /* B */ + } + break; + case PIPE_BLENDFACTOR_ZERO: + VEC4_COPY(dest[0], zero); /* R */ + VEC4_COPY(dest[1], zero); /* G */ + VEC4_COPY(dest[2], zero); /* B */ + break; + case PIPE_BLENDFACTOR_SRC1_COLOR: + case PIPE_BLENDFACTOR_SRC1_ALPHA: + /* XXX what are these? */ + assert(0); + break; + case PIPE_BLENDFACTOR_INV_SRC_COLOR: + { + float inv_comp[4]; + VEC4_SUB(inv_comp, one, quadColor[0]); /* R */ + VEC4_MUL(dest[0], inv_comp, dest[0]); /* R */ + VEC4_SUB(inv_comp, one, quadColor[1]); /* G */ + VEC4_MUL(dest[1], inv_comp, dest[1]); /* G */ + VEC4_SUB(inv_comp, one, quadColor[2]); /* B */ + VEC4_MUL(dest[2], inv_comp, dest[2]); /* B */ + } + break; + case PIPE_BLENDFACTOR_INV_SRC_ALPHA: + { + float one_minus_alpha[QUAD_SIZE]; + VEC4_SUB(one_minus_alpha, one, quadColor[3]); + VEC4_MUL(dest[0], dest[0], one_minus_alpha); /* R */ + VEC4_MUL(dest[1], dest[1], one_minus_alpha); /* G */ + VEC4_MUL(dest[2], dest[2], one_minus_alpha); /* B */ + } + break; + case PIPE_BLENDFACTOR_INV_DST_ALPHA: + { + float inv_comp[4]; + VEC4_SUB(inv_comp, one, dest[3]); /* A */ + VEC4_MUL(dest[0], inv_comp, dest[0]); /* R */ + VEC4_MUL(dest[1], inv_comp, dest[1]); /* G */ + VEC4_MUL(dest[2], inv_comp, dest[2]); /* B */ + } + break; + case PIPE_BLENDFACTOR_INV_DST_COLOR: + { + float inv_comp[4]; + VEC4_SUB(inv_comp, one, dest[0]); /* R */ + VEC4_MUL(dest[0], dest[0], inv_comp); /* R */ + VEC4_SUB(inv_comp, one, dest[1]); /* G */ + VEC4_MUL(dest[1], dest[1], inv_comp); /* G */ + VEC4_SUB(inv_comp, one, dest[2]); /* B */ + VEC4_MUL(dest[2], dest[2], inv_comp); /* B */ + } + break; + case PIPE_BLENDFACTOR_INV_CONST_COLOR: + { + float inv_comp[4]; + /* R */ + VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[0]); + VEC4_MUL(dest[0], dest[0], inv_comp); + /* G */ + VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[1]); + VEC4_MUL(dest[1], dest[1], inv_comp); + /* B */ + VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[2]); + VEC4_MUL(dest[2], dest[2], inv_comp); + } + break; + case PIPE_BLENDFACTOR_INV_CONST_ALPHA: + { + float inv_comp[4]; + VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[3]); + VEC4_MUL(dest[0], dest[0], inv_comp); + VEC4_MUL(dest[1], dest[1], inv_comp); + VEC4_MUL(dest[2], dest[2], inv_comp); + } + break; + case PIPE_BLENDFACTOR_INV_SRC1_COLOR: + case PIPE_BLENDFACTOR_INV_SRC1_ALPHA: + /* XXX what are these? */ + assert(0); + break; + default: + assert(0); + } + + /* + * Compute dest/second term A + */ + switch (softpipe->blend->alpha_dst_factor) { + case PIPE_BLENDFACTOR_ONE: + /* dest = dest * 1 NO-OP, leave dest as-is */ + break; + case PIPE_BLENDFACTOR_SRC_COLOR: + /* fall-through */ + case PIPE_BLENDFACTOR_SRC_ALPHA: + VEC4_MUL(dest[3], dest[3], quadColor[3]); /* A * A */ + break; + case PIPE_BLENDFACTOR_DST_COLOR: + /* fall-through */ + case PIPE_BLENDFACTOR_DST_ALPHA: + VEC4_MUL(dest[3], dest[3], dest[3]); /* A */ + break; + case PIPE_BLENDFACTOR_SRC_ALPHA_SATURATE: + assert(0); /* illegal */ + break; + case PIPE_BLENDFACTOR_CONST_COLOR: + /* fall-through */ + case PIPE_BLENDFACTOR_CONST_ALPHA: + { + float comp[4]; + VEC4_SCALAR(comp, softpipe->blend_color.color[3]); /* A */ + VEC4_MUL(dest[3], dest[3], comp); /* A */ + } + break; + case PIPE_BLENDFACTOR_ZERO: + VEC4_COPY(dest[3], zero); /* A */ + break; + case PIPE_BLENDFACTOR_INV_SRC_COLOR: + /* fall-through */ + case PIPE_BLENDFACTOR_INV_SRC_ALPHA: + { + float one_minus_alpha[QUAD_SIZE]; + VEC4_SUB(one_minus_alpha, one, quadColor[3]); + VEC4_MUL(dest[3], dest[3], one_minus_alpha); /* A */ + } + break; + case PIPE_BLENDFACTOR_INV_DST_COLOR: + /* fall-through */ + case PIPE_BLENDFACTOR_INV_DST_ALPHA: + { + float inv_comp[4]; + VEC4_SUB(inv_comp, one, dest[3]); /* A */ + VEC4_MUL(dest[3], inv_comp, dest[3]); /* A */ + } + break; + case PIPE_BLENDFACTOR_INV_CONST_COLOR: + /* fall-through */ + case PIPE_BLENDFACTOR_INV_CONST_ALPHA: + { + float inv_comp[4]; + VEC4_SCALAR(inv_comp, 1.0f - softpipe->blend_color.color[3]); + VEC4_MUL(dest[3], dest[3], inv_comp); + } + break; + default: + assert(0); + } + + /* + * Combine RGB terms + */ + switch (softpipe->blend->rgb_func) { + case PIPE_BLEND_ADD: + VEC4_ADD(quadColor[0], source[0], dest[0]); /* R */ + VEC4_ADD(quadColor[1], source[1], dest[1]); /* G */ + VEC4_ADD(quadColor[2], source[2], dest[2]); /* B */ + break; + case PIPE_BLEND_SUBTRACT: + VEC4_SUB(quadColor[0], source[0], dest[0]); /* R */ + VEC4_SUB(quadColor[1], source[1], dest[1]); /* G */ + VEC4_SUB(quadColor[2], source[2], dest[2]); /* B */ + break; + case PIPE_BLEND_REVERSE_SUBTRACT: + VEC4_SUB(quadColor[0], dest[0], source[0]); /* R */ + VEC4_SUB(quadColor[1], dest[1], source[1]); /* G */ + VEC4_SUB(quadColor[2], dest[2], source[2]); /* B */ + break; + case PIPE_BLEND_MIN: + VEC4_MIN(quadColor[0], source[0], dest[0]); /* R */ + VEC4_MIN(quadColor[1], source[1], dest[1]); /* G */ + VEC4_MIN(quadColor[2], source[2], dest[2]); /* B */ + break; + case PIPE_BLEND_MAX: + VEC4_MAX(quadColor[0], source[0], dest[0]); /* R */ + VEC4_MAX(quadColor[1], source[1], dest[1]); /* G */ + VEC4_MAX(quadColor[2], source[2], dest[2]); /* B */ + break; + default: + assert(0); + } + + /* + * Combine A terms + */ + switch (softpipe->blend->alpha_func) { + case PIPE_BLEND_ADD: + VEC4_ADD(quadColor[3], source[3], dest[3]); /* A */ + break; + case PIPE_BLEND_SUBTRACT: + VEC4_SUB(quadColor[3], source[3], dest[3]); /* A */ + break; + case PIPE_BLEND_REVERSE_SUBTRACT: + VEC4_SUB(quadColor[3], dest[3], source[3]); /* A */ + break; + case PIPE_BLEND_MIN: + VEC4_MIN(quadColor[3], source[3], dest[3]); /* A */ + break; + case PIPE_BLEND_MAX: + VEC4_MAX(quadColor[3], source[3], dest[3]); /* A */ + break; + default: + assert(0); + } + + } /* cbuf loop */ + + /* pass blended quad to next stage */ + qs->next->run(qs->next, quad); +} + + +static void blend_begin(struct quad_stage *qs) +{ + qs->next->begin(qs->next); +} + + +static void blend_destroy(struct quad_stage *qs) +{ + FREE( qs ); +} + + +struct quad_stage *sp_quad_blend_stage( struct softpipe_context *softpipe ) +{ + struct quad_stage *stage = CALLOC_STRUCT(quad_stage); + + stage->softpipe = softpipe; + stage->begin = blend_begin; + stage->run = blend_quad; + stage->destroy = blend_destroy; + + return stage; +} diff --git a/src/gallium/drivers/softpipe/sp_quad_bufloop.c b/src/gallium/drivers/softpipe/sp_quad_bufloop.c new file mode 100644 index 00000000000..92e9af09c18 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_quad_bufloop.c @@ -0,0 +1,74 @@ + +#include "util/u_memory.h" +#include "sp_context.h" +#include "sp_headers.h" +#include "sp_surface.h" +#include "sp_quad.h" + + +/** + * Loop over colorbuffers, passing quad to next stage each time. + */ +static void +cbuf_loop_quad(struct quad_stage *qs, struct quad_header *quad) +{ + struct softpipe_context *softpipe = qs->softpipe; + float tmp[PIPE_MAX_COLOR_BUFS][4][QUAD_SIZE]; + unsigned i; + + assert(sizeof(quad->outputs.color) == sizeof(tmp)); + assert(softpipe->framebuffer.num_cbufs <= PIPE_MAX_COLOR_BUFS); + + /* make copy of original colors since they can get modified + * by blending and masking. + * XXX we won't have to do this if the fragment program actually emits + * N separate colors and we're drawing to N color buffers (MRT). + * But if we emitted one color and glDrawBuffer(GL_FRONT_AND_BACK) is + * in effect, we need to save/restore colors like this. + */ + memcpy(tmp, quad->outputs.color, sizeof(tmp)); + + for (i = 0; i < softpipe->framebuffer.num_cbufs; i++) { + /* set current cbuffer */ +#if 0 /* obsolete & going away */ + softpipe->current_cbuf = i; +#endif + + /* pass blended quad to next stage */ + qs->next->run(qs->next, quad); + + /* restore quad's colors for next buffer */ + memcpy(quad->outputs.color, tmp, sizeof(tmp)); + } +} + + +static void cbuf_loop_begin(struct quad_stage *qs) +{ + qs->next->begin(qs->next); +} + + +static void cbuf_loop_destroy(struct quad_stage *qs) +{ + FREE( qs ); +} + + +/** + * Create the colorbuffer loop stage. + * This is used to implement multiple render targets and GL_FRONT_AND_BACK + * rendering. + */ +struct quad_stage *sp_quad_bufloop_stage( struct softpipe_context *softpipe ) +{ + struct quad_stage *stage = CALLOC_STRUCT(quad_stage); + + stage->softpipe = softpipe; + stage->begin = cbuf_loop_begin; + stage->run = cbuf_loop_quad; + stage->destroy = cbuf_loop_destroy; + + return stage; +} + diff --git a/src/gallium/drivers/softpipe/sp_quad_colormask.c b/src/gallium/drivers/softpipe/sp_quad_colormask.c new file mode 100644 index 00000000000..f72f31db973 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_quad_colormask.c @@ -0,0 +1,116 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * \brief quad colormask stage + * \author Brian Paul + */ + +#include "pipe/p_defines.h" +#include "util/u_math.h" +#include "util/u_memory.h" +#include "sp_context.h" +#include "sp_headers.h" +#include "sp_surface.h" +#include "sp_quad.h" +#include "sp_tile_cache.h" + + + +/** + * XXX colormask could be rolled into blending... + */ +static void +colormask_quad(struct quad_stage *qs, struct quad_header *quad) +{ + struct softpipe_context *softpipe = qs->softpipe; + uint cbuf; + + /* loop over colorbuffer outputs */ + for (cbuf = 0; cbuf < softpipe->framebuffer.num_cbufs; cbuf++) { + float dest[4][QUAD_SIZE]; + struct softpipe_cached_tile *tile + = sp_get_cached_tile(softpipe, + softpipe->cbuf_cache[cbuf], + quad->x0, quad->y0); + float (*quadColor)[4] = quad->outputs.color[cbuf]; + uint i, j; + + /* get/swizzle dest colors */ + for (j = 0; j < QUAD_SIZE; j++) { + int x = (quad->x0 & (TILE_SIZE-1)) + (j & 1); + int y = (quad->y0 & (TILE_SIZE-1)) + (j >> 1); + for (i = 0; i < 4; i++) { + dest[i][j] = tile->data.color[y][x][i]; + } + } + + /* R */ + if (!(softpipe->blend->colormask & PIPE_MASK_R)) + COPY_4V(quadColor[0], dest[0]); + + /* G */ + if (!(softpipe->blend->colormask & PIPE_MASK_G)) + COPY_4V(quadColor[1], dest[1]); + + /* B */ + if (!(softpipe->blend->colormask & PIPE_MASK_B)) + COPY_4V(quadColor[2], dest[2]); + + /* A */ + if (!(softpipe->blend->colormask & PIPE_MASK_A)) + COPY_4V(quadColor[3], dest[3]); + } + + /* pass quad to next stage */ + qs->next->run(qs->next, quad); +} + + +static void colormask_begin(struct quad_stage *qs) +{ + qs->next->begin(qs->next); +} + + +static void colormask_destroy(struct quad_stage *qs) +{ + FREE( qs ); +} + + +struct quad_stage *sp_quad_colormask_stage( struct softpipe_context *softpipe ) +{ + struct quad_stage *stage = CALLOC_STRUCT(quad_stage); + + stage->softpipe = softpipe; + stage->begin = colormask_begin; + stage->run = colormask_quad; + stage->destroy = colormask_destroy; + + return stage; +} diff --git a/src/gallium/drivers/softpipe/sp_quad_coverage.c b/src/gallium/drivers/softpipe/sp_quad_coverage.c new file mode 100644 index 00000000000..ad907ec25fe --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_quad_coverage.c @@ -0,0 +1,93 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +/** + * \brief Apply AA coverage to quad alpha valus + * \author Brian Paul + */ + + +#include "pipe/p_defines.h" +#include "util/u_memory.h" +#include "sp_context.h" +#include "sp_headers.h" +#include "sp_quad.h" + + +/** + * Multiply quad's alpha values by the fragment coverage. + */ +static void +coverage_quad(struct quad_stage *qs, struct quad_header *quad) +{ + struct softpipe_context *softpipe = qs->softpipe; + + if ((softpipe->rasterizer->poly_smooth && quad->prim == PRIM_TRI) || + (softpipe->rasterizer->line_smooth && quad->prim == PRIM_LINE) || + (softpipe->rasterizer->point_smooth && quad->prim == PRIM_POINT)) { + uint cbuf; + + /* loop over colorbuffer outputs */ + for (cbuf = 0; cbuf < softpipe->framebuffer.num_cbufs; cbuf++) { + float (*quadColor)[4] = quad->outputs.color[cbuf]; + unsigned j; + for (j = 0; j < QUAD_SIZE; j++) { + assert(quad->coverage[j] >= 0.0); + assert(quad->coverage[j] <= 1.0); + quadColor[3][j] *= quad->coverage[j]; + } + } + } + + qs->next->run(qs->next, quad); +} + + +static void coverage_begin(struct quad_stage *qs) +{ + qs->next->begin(qs->next); +} + + +static void coverage_destroy(struct quad_stage *qs) +{ + FREE( qs ); +} + + +struct quad_stage *sp_quad_coverage_stage( struct softpipe_context *softpipe ) +{ + struct quad_stage *stage = CALLOC_STRUCT(quad_stage); + + stage->softpipe = softpipe; + stage->begin = coverage_begin; + stage->run = coverage_quad; + stage->destroy = coverage_destroy; + + return stage; +} diff --git a/src/gallium/drivers/softpipe/sp_quad_depth_test.c b/src/gallium/drivers/softpipe/sp_quad_depth_test.c new file mode 100644 index 00000000000..227cb2014e1 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_quad_depth_test.c @@ -0,0 +1,290 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * \brief Quad depth testing + */ + +#include "pipe/p_defines.h" +#include "util/u_memory.h" +#include "sp_context.h" +#include "sp_headers.h" +#include "sp_surface.h" +#include "sp_quad.h" +#include "sp_tile_cache.h" + + +/** + * Do depth testing for a quad. + * Not static since it's used by the stencil code. + */ + +/* + * To increase efficiency, we should probably have multiple versions + * of this function that are specifically for Z16, Z32 and FP Z buffers. + * Try to effectively do that with codegen... + */ + +void +sp_depth_test_quad(struct quad_stage *qs, struct quad_header *quad) +{ + struct softpipe_context *softpipe = qs->softpipe; + struct pipe_surface *ps = softpipe->framebuffer.zsbuf; + const enum pipe_format format = ps->format; + unsigned bzzzz[QUAD_SIZE]; /**< Z values fetched from depth buffer */ + unsigned qzzzz[QUAD_SIZE]; /**< Z values from the quad */ + unsigned zmask = 0; + unsigned j; + struct softpipe_cached_tile *tile + = sp_get_cached_tile(softpipe, softpipe->zsbuf_cache, quad->x0, quad->y0); + + assert(ps); /* shouldn't get here if there's no zbuffer */ + + /* + * Convert quad's float depth values to int depth values (qzzzz). + * If the Z buffer stores integer values, we _have_ to do the depth + * compares with integers (not floats). Otherwise, the float->int->float + * conversion of Z values (which isn't an identity function) will cause + * Z-fighting errors. + * + * Also, get the zbuffer values (bzzzz) from the cached tile. + */ + switch (format) { + case PIPE_FORMAT_Z16_UNORM: + { + float scale = 65535.0; + + for (j = 0; j < QUAD_SIZE; j++) { + qzzzz[j] = (unsigned) (quad->outputs.depth[j] * scale); + } + + for (j = 0; j < QUAD_SIZE; j++) { + int x = quad->x0 % TILE_SIZE + (j & 1); + int y = quad->y0 % TILE_SIZE + (j >> 1); + bzzzz[j] = tile->data.depth16[y][x]; + } + } + break; + case PIPE_FORMAT_Z32_UNORM: + { + double scale = (double) (uint) ~0UL; + + for (j = 0; j < QUAD_SIZE; j++) { + qzzzz[j] = (unsigned) (quad->outputs.depth[j] * scale); + } + + for (j = 0; j < QUAD_SIZE; j++) { + int x = quad->x0 % TILE_SIZE + (j & 1); + int y = quad->y0 % TILE_SIZE + (j >> 1); + bzzzz[j] = tile->data.depth32[y][x]; + } + } + break; + case PIPE_FORMAT_X8Z24_UNORM: + /* fall-through */ + case PIPE_FORMAT_S8Z24_UNORM: + { + float scale = (float) ((1 << 24) - 1); + + for (j = 0; j < QUAD_SIZE; j++) { + qzzzz[j] = (unsigned) (quad->outputs.depth[j] * scale); + } + + for (j = 0; j < QUAD_SIZE; j++) { + int x = quad->x0 % TILE_SIZE + (j & 1); + int y = quad->y0 % TILE_SIZE + (j >> 1); + bzzzz[j] = tile->data.depth32[y][x] & 0xffffff; + } + } + break; + case PIPE_FORMAT_Z24X8_UNORM: + /* fall-through */ + case PIPE_FORMAT_Z24S8_UNORM: + { + float scale = (float) ((1 << 24) - 1); + + for (j = 0; j < QUAD_SIZE; j++) { + qzzzz[j] = (unsigned) (quad->outputs.depth[j] * scale); + } + + for (j = 0; j < QUAD_SIZE; j++) { + int x = quad->x0 % TILE_SIZE + (j & 1); + int y = quad->y0 % TILE_SIZE + (j >> 1); + bzzzz[j] = tile->data.depth32[y][x] >> 8; + } + } + break; + default: + assert(0); + } + + switch (softpipe->depth_stencil->depth.func) { + case PIPE_FUNC_NEVER: + /* zmask = 0 */ + break; + case PIPE_FUNC_LESS: + /* Note this is pretty much a single sse or cell instruction. + * Like this: quad->mask &= (quad->outputs.depth < zzzz); + */ + for (j = 0; j < QUAD_SIZE; j++) { + if (qzzzz[j] < bzzzz[j]) + zmask |= 1 << j; + } + break; + case PIPE_FUNC_EQUAL: + for (j = 0; j < QUAD_SIZE; j++) { + if (qzzzz[j] == bzzzz[j]) + zmask |= 1 << j; + } + break; + case PIPE_FUNC_LEQUAL: + for (j = 0; j < QUAD_SIZE; j++) { + if (qzzzz[j] <= bzzzz[j]) + zmask |= (1 << j); + } + break; + case PIPE_FUNC_GREATER: + for (j = 0; j < QUAD_SIZE; j++) { + if (qzzzz[j] > bzzzz[j]) + zmask |= (1 << j); + } + break; + case PIPE_FUNC_NOTEQUAL: + for (j = 0; j < QUAD_SIZE; j++) { + if (qzzzz[j] != bzzzz[j]) + zmask |= (1 << j); + } + break; + case PIPE_FUNC_GEQUAL: + for (j = 0; j < QUAD_SIZE; j++) { + if (qzzzz[j] >= bzzzz[j]) + zmask |= (1 << j); + } + break; + case PIPE_FUNC_ALWAYS: + zmask = MASK_ALL; + break; + default: + assert(0); + } + + quad->mask &= zmask; + + if (softpipe->depth_stencil->depth.writemask) { + + /* This is also efficient with sse / spe instructions: + */ + for (j = 0; j < QUAD_SIZE; j++) { + if (quad->mask & (1 << j)) { + bzzzz[j] = qzzzz[j]; + } + } + + /* put updated Z values back into cached tile */ + switch (format) { + case PIPE_FORMAT_Z16_UNORM: + for (j = 0; j < QUAD_SIZE; j++) { + int x = quad->x0 % TILE_SIZE + (j & 1); + int y = quad->y0 % TILE_SIZE + (j >> 1); + tile->data.depth16[y][x] = (ushort) bzzzz[j]; + } + break; + case PIPE_FORMAT_X8Z24_UNORM: + /* fall-through */ + /* (yes, this falls through to a different case than above) */ + case PIPE_FORMAT_Z32_UNORM: + for (j = 0; j < QUAD_SIZE; j++) { + int x = quad->x0 % TILE_SIZE + (j & 1); + int y = quad->y0 % TILE_SIZE + (j >> 1); + tile->data.depth32[y][x] = bzzzz[j]; + } + break; + case PIPE_FORMAT_S8Z24_UNORM: + for (j = 0; j < QUAD_SIZE; j++) { + int x = quad->x0 % TILE_SIZE + (j & 1); + int y = quad->y0 % TILE_SIZE + (j >> 1); + uint s8z24 = tile->data.depth32[y][x]; + s8z24 = (s8z24 & 0xff000000) | bzzzz[j]; + tile->data.depth32[y][x] = s8z24; + } + break; + case PIPE_FORMAT_Z24S8_UNORM: + for (j = 0; j < QUAD_SIZE; j++) { + int x = quad->x0 % TILE_SIZE + (j & 1); + int y = quad->y0 % TILE_SIZE + (j >> 1); + uint z24s8 = tile->data.depth32[y][x]; + z24s8 = (z24s8 & 0xff) | (bzzzz[j] << 8); + tile->data.depth32[y][x] = z24s8; + } + break; + case PIPE_FORMAT_Z24X8_UNORM: + for (j = 0; j < QUAD_SIZE; j++) { + int x = quad->x0 % TILE_SIZE + (j & 1); + int y = quad->y0 % TILE_SIZE + (j >> 1); + tile->data.depth32[y][x] = bzzzz[j] << 8; + } + break; + default: + assert(0); + } + } +} + + +static void +depth_test_quad(struct quad_stage *qs, struct quad_header *quad) +{ + sp_depth_test_quad(qs, quad); + + if (quad->mask) + qs->next->run(qs->next, quad); +} + + +static void depth_test_begin(struct quad_stage *qs) +{ + qs->next->begin(qs->next); +} + + +static void depth_test_destroy(struct quad_stage *qs) +{ + FREE( qs ); +} + + +struct quad_stage *sp_quad_depth_test_stage( struct softpipe_context *softpipe ) +{ + struct quad_stage *stage = CALLOC_STRUCT(quad_stage); + + stage->softpipe = softpipe; + stage->begin = depth_test_begin; + stage->run = depth_test_quad; + stage->destroy = depth_test_destroy; + + return stage; +} diff --git a/src/gallium/drivers/softpipe/sp_quad_earlyz.c b/src/gallium/drivers/softpipe/sp_quad_earlyz.c new file mode 100644 index 00000000000..5a66a866993 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_quad_earlyz.c @@ -0,0 +1,88 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * \brief Quad early-z testing + */ + +#include "pipe/p_defines.h" +#include "util/u_memory.h" +#include "sp_headers.h" +#include "sp_quad.h" + + +/** + * All this stage does is compute the quad's Z values (which is normally + * done by the shading stage). + * The next stage will do the actual depth test. + */ +static void +earlyz_quad( + struct quad_stage *qs, + struct quad_header *quad ) +{ + const float fx = (float) quad->x0; + const float fy = (float) quad->y0; + const float dzdx = quad->posCoef->dadx[2]; + const float dzdy = quad->posCoef->dady[2]; + const float z0 = quad->posCoef->a0[2] + dzdx * fx + dzdy * fy; + + quad->outputs.depth[0] = z0; + quad->outputs.depth[1] = z0 + dzdx; + quad->outputs.depth[2] = z0 + dzdy; + quad->outputs.depth[3] = z0 + dzdx + dzdy; + + qs->next->run( qs->next, quad ); +} + +static void +earlyz_begin( + struct quad_stage *qs ) +{ + qs->next->begin( qs->next ); +} + +static void +earlyz_destroy( + struct quad_stage *qs ) +{ + FREE( qs ); +} + +struct quad_stage * +sp_quad_earlyz_stage( + struct softpipe_context *softpipe ) +{ + struct quad_stage *stage = CALLOC_STRUCT( quad_stage ); + + stage->softpipe = softpipe; + stage->begin = earlyz_begin; + stage->run = earlyz_quad; + stage->destroy = earlyz_destroy; + + return stage; +} diff --git a/src/gallium/drivers/softpipe/sp_quad_fs.c b/src/gallium/drivers/softpipe/sp_quad_fs.c new file mode 100644 index 00000000000..5499ba5361f --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_quad_fs.c @@ -0,0 +1,205 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Vertices are just an array of floats, with all the attributes + * packed. We currently assume a layout like: + * + * attr[0][0..3] - window position + * attr[1..n][0..3] - remaining attributes. + * + * Attributes are assumed to be 4 floats wide but are packed so that + * all the enabled attributes run contiguously. + */ + +#include "util/u_math.h" +#include "util/u_memory.h" +#include "pipe/p_defines.h" +#include "pipe/p_shader_tokens.h" + +#include "sp_context.h" +#include "sp_state.h" +#include "sp_headers.h" +#include "sp_quad.h" +#include "sp_texture.h" +#include "sp_tex_sample.h" + + +struct quad_shade_stage +{ + struct quad_stage stage; + struct tgsi_sampler samplers[PIPE_MAX_SAMPLERS]; + struct tgsi_exec_machine machine; + struct tgsi_exec_vector *inputs, *outputs; +}; + + +/** cast wrapper */ +static INLINE struct quad_shade_stage * +quad_shade_stage(struct quad_stage *qs) +{ + return (struct quad_shade_stage *) qs; +} + + + +/** + * Execute fragment shader for the four fragments in the quad. + */ +static void +shade_quad( + struct quad_stage *qs, + struct quad_header *quad ) +{ + struct quad_shade_stage *qss = quad_shade_stage( qs ); + struct softpipe_context *softpipe = qs->softpipe; + struct tgsi_exec_machine *machine = &qss->machine; + boolean z_written; + + /* Consts do not require 16 byte alignment. */ + machine->Consts = softpipe->mapped_constants[PIPE_SHADER_FRAGMENT]; + + machine->InterpCoefs = quad->coef; + + /* run shader */ + quad->mask &= softpipe->fs->run( softpipe->fs, + &qss->machine, + quad ); + + /* store outputs */ + z_written = FALSE; + { + const ubyte *sem_name = softpipe->fs->info.output_semantic_name; + const ubyte *sem_index = softpipe->fs->info.output_semantic_index; + const uint n = qss->stage.softpipe->fs->info.num_outputs; + uint i; + for (i = 0; i < n; i++) { + switch (sem_name[i]) { + case TGSI_SEMANTIC_COLOR: + { + uint cbuf = sem_index[i]; + memcpy(quad->outputs.color[cbuf], + &machine->Outputs[i].xyzw[0].f[0], + sizeof(quad->outputs.color[0]) ); + } + break; + case TGSI_SEMANTIC_POSITION: + { + uint j; + for (j = 0; j < 4; j++) { + quad->outputs.depth[j] = machine->Outputs[0].xyzw[2].f[j]; + } + z_written = TRUE; + } + break; + } + } + } + + if (!z_written) { + /* compute Z values now, as in the quad earlyz stage */ + /* XXX we should really only do this if the earlyz stage is not used */ + const float fx = (float) quad->x0; + const float fy = (float) quad->y0; + const float dzdx = quad->posCoef->dadx[2]; + const float dzdy = quad->posCoef->dady[2]; + const float z0 = quad->posCoef->a0[2] + dzdx * fx + dzdy * fy; + + quad->outputs.depth[0] = z0; + quad->outputs.depth[1] = z0 + dzdx; + quad->outputs.depth[2] = z0 + dzdy; + quad->outputs.depth[3] = z0 + dzdx + dzdy; + } + + /* shader may cull fragments */ + if( quad->mask ) { + qs->next->run( qs->next, quad ); + } +} + +/** + * Per-primitive (or per-begin?) setup + */ +static void shade_begin(struct quad_stage *qs) +{ + struct quad_shade_stage *qss = quad_shade_stage(qs); + struct softpipe_context *softpipe = qs->softpipe; + unsigned i; + unsigned num = MAX2(softpipe->num_textures, softpipe->num_samplers); + + /* set TGSI sampler state that varies */ + for (i = 0; i < num; i++) { + qss->samplers[i].state = softpipe->sampler[i]; + qss->samplers[i].texture = softpipe->texture[i]; + } + + softpipe->fs->prepare( softpipe->fs, + &qss->machine, + qss->samplers ); + + qs->next->begin(qs->next); +} + + +static void shade_destroy(struct quad_stage *qs) +{ + struct quad_shade_stage *qss = (struct quad_shade_stage *) qs; + + tgsi_exec_machine_free_data(&qss->machine); + FREE( qss->inputs ); + FREE( qss->outputs ); + FREE( qs ); +} + + +struct quad_stage *sp_quad_shade_stage( struct softpipe_context *softpipe ) +{ + struct quad_shade_stage *qss = CALLOC_STRUCT(quad_shade_stage); + uint i; + + /* allocate storage for program inputs/outputs, aligned to 16 bytes */ + qss->inputs = MALLOC(PIPE_MAX_ATTRIBS * sizeof(*qss->inputs) + 16); + qss->outputs = MALLOC(PIPE_MAX_ATTRIBS * sizeof(*qss->outputs) + 16); + qss->machine.Inputs = align16(qss->inputs); + qss->machine.Outputs = align16(qss->outputs); + + qss->stage.softpipe = softpipe; + qss->stage.begin = shade_begin; + qss->stage.run = shade_quad; + qss->stage.destroy = shade_destroy; + + /* set TGSI sampler state that's constant */ + for (i = 0; i < PIPE_MAX_SAMPLERS; i++) { + assert(softpipe->tex_cache[i]); + qss->samplers[i].get_samples = sp_get_samples; + qss->samplers[i].pipe = &softpipe->pipe; + qss->samplers[i].cache = softpipe->tex_cache[i]; + } + + tgsi_exec_machine_init( &qss->machine ); + + return &qss->stage; +} diff --git a/src/gallium/drivers/softpipe/sp_quad_occlusion.c b/src/gallium/drivers/softpipe/sp_quad_occlusion.c new file mode 100644 index 00000000000..db13e73ae35 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_quad_occlusion.c @@ -0,0 +1,85 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +/** + * \brief Quad occlusion counter stage + * \author Brian Paul + */ + + +#include "pipe/p_defines.h" +#include "util/u_memory.h" +#include "sp_context.h" +#include "sp_headers.h" +#include "sp_surface.h" +#include "sp_quad.h" + +static unsigned count_bits( unsigned val ) +{ + unsigned i; + + for (i = 0; val ; val >>= 1) + i += (val & 1); + + return i; +} + +static void +occlusion_count_quad(struct quad_stage *qs, struct quad_header *quad) +{ + struct softpipe_context *softpipe = qs->softpipe; + + softpipe->occlusion_count += count_bits(quad->mask); + + qs->next->run(qs->next, quad); +} + + +static void occlusion_begin(struct quad_stage *qs) +{ + qs->next->begin(qs->next); +} + + +static void occlusion_destroy(struct quad_stage *qs) +{ + FREE( qs ); +} + + +struct quad_stage *sp_quad_occlusion_stage( struct softpipe_context *softpipe ) +{ + struct quad_stage *stage = CALLOC_STRUCT(quad_stage); + + stage->softpipe = softpipe; + stage->begin = occlusion_begin; + stage->run = occlusion_count_quad; + stage->destroy = occlusion_destroy; + + return stage; +} diff --git a/src/gallium/drivers/softpipe/sp_quad_output.c b/src/gallium/drivers/softpipe/sp_quad_output.c new file mode 100644 index 00000000000..b64646a449f --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_quad_output.c @@ -0,0 +1,95 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include "util/u_memory.h" +#include "sp_context.h" +#include "sp_headers.h" +#include "sp_surface.h" +#include "sp_quad.h" +#include "sp_tile_cache.h" + + +/** + * Last step of quad processing: write quad colors to the framebuffer, + * taking mask into account. + */ +static void +output_quad(struct quad_stage *qs, struct quad_header *quad) +{ + /* in-tile pos: */ + const int itx = quad->x0 % TILE_SIZE; + const int ity = quad->y0 % TILE_SIZE; + + struct softpipe_context *softpipe = qs->softpipe; + uint cbuf; + + /* loop over colorbuffer outputs */ + for (cbuf = 0; cbuf < softpipe->framebuffer.num_cbufs; cbuf++) { + struct softpipe_cached_tile *tile + = sp_get_cached_tile(softpipe, + softpipe->cbuf_cache[cbuf], + quad->x0, quad->y0); + float (*quadColor)[4] = quad->outputs.color[cbuf]; + int i, j; + + /* get/swizzle dest colors */ + for (j = 0; j < QUAD_SIZE; j++) { + if (quad->mask & (1 << j)) { + int x = itx + (j & 1); + int y = ity + (j >> 1); + for (i = 0; i < 4; i++) { /* loop over color chans */ + tile->data.color[y][x][i] = quadColor[i][j]; + } + } + } + } +} + + +static void output_begin(struct quad_stage *qs) +{ + assert(qs->next == NULL); +} + + +static void output_destroy(struct quad_stage *qs) +{ + FREE( qs ); +} + + +struct quad_stage *sp_quad_output_stage( struct softpipe_context *softpipe ) +{ + struct quad_stage *stage = CALLOC_STRUCT(quad_stage); + + stage->softpipe = softpipe; + stage->begin = output_begin; + stage->run = output_quad; + stage->destroy = output_destroy; + + return stage; +} diff --git a/src/gallium/drivers/softpipe/sp_quad_stencil.c b/src/gallium/drivers/softpipe/sp_quad_stencil.c new file mode 100644 index 00000000000..ce9562e07c6 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_quad_stencil.c @@ -0,0 +1,352 @@ + +/** + * \brief Quad stencil testing + */ + + +#include "sp_context.h" +#include "sp_headers.h" +#include "sp_surface.h" +#include "sp_tile_cache.h" +#include "sp_quad.h" +#include "pipe/p_defines.h" +#include "util/u_memory.h" + + +/** Only 8-bit stencil supported */ +#define STENCIL_MAX 0xff + + +/** + * Do the basic stencil test (compare stencil buffer values against the + * reference value. + * + * \param stencilVals the stencil values from the stencil buffer + * \param func the stencil func (PIPE_FUNC_x) + * \param ref the stencil reference value + * \param valMask the stencil value mask indicating which bits of the stencil + * values and ref value are to be used. + * \return mask indicating which pixels passed the stencil test + */ +static unsigned +do_stencil_test(const ubyte stencilVals[QUAD_SIZE], unsigned func, + unsigned ref, unsigned valMask) +{ + unsigned passMask = 0x0; + unsigned j; + + ref &= valMask; + + switch (func) { + case PIPE_FUNC_NEVER: + /* passMask = 0x0 */ + break; + case PIPE_FUNC_LESS: + for (j = 0; j < QUAD_SIZE; j++) { + if (ref < (stencilVals[j] & valMask)) { + passMask |= (1 << j); + } + } + break; + case PIPE_FUNC_EQUAL: + for (j = 0; j < QUAD_SIZE; j++) { + if (ref == (stencilVals[j] & valMask)) { + passMask |= (1 << j); + } + } + break; + case PIPE_FUNC_LEQUAL: + for (j = 0; j < QUAD_SIZE; j++) { + if (ref <= (stencilVals[j] & valMask)) { + passMask |= (1 << j); + } + } + break; + case PIPE_FUNC_GREATER: + for (j = 0; j < QUAD_SIZE; j++) { + if (ref > (stencilVals[j] & valMask)) { + passMask |= (1 << j); + } + } + break; + case PIPE_FUNC_NOTEQUAL: + for (j = 0; j < QUAD_SIZE; j++) { + if (ref != (stencilVals[j] & valMask)) { + passMask |= (1 << j); + } + } + break; + case PIPE_FUNC_GEQUAL: + for (j = 0; j < QUAD_SIZE; j++) { + if (ref >= (stencilVals[j] & valMask)) { + passMask |= (1 << j); + } + } + break; + case PIPE_FUNC_ALWAYS: + passMask = MASK_ALL; + break; + default: + assert(0); + } + + return passMask; +} + + +/** + * Apply the stencil operator to stencil values. + * + * \param stencilVals the stencil buffer values (read and written) + * \param mask indicates which pixels to update + * \param op the stencil operator (PIPE_STENCIL_OP_x) + * \param ref the stencil reference value + * \param wrtMask writemask controlling which bits are changed in the + * stencil values + */ +static void +apply_stencil_op(ubyte stencilVals[QUAD_SIZE], + unsigned mask, unsigned op, ubyte ref, ubyte wrtMask) +{ + unsigned j; + ubyte newstencil[QUAD_SIZE]; + + for (j = 0; j < QUAD_SIZE; j++) { + newstencil[j] = stencilVals[j]; + } + + switch (op) { + case PIPE_STENCIL_OP_KEEP: + /* no-op */ + break; + case PIPE_STENCIL_OP_ZERO: + for (j = 0; j < QUAD_SIZE; j++) { + if (mask & (1 << j)) { + newstencil[j] = 0; + } + } + break; + case PIPE_STENCIL_OP_REPLACE: + for (j = 0; j < QUAD_SIZE; j++) { + if (mask & (1 << j)) { + newstencil[j] = ref; + } + } + break; + case PIPE_STENCIL_OP_INCR: + for (j = 0; j < QUAD_SIZE; j++) { + if (mask & (1 << j)) { + if (stencilVals[j] < STENCIL_MAX) { + newstencil[j] = stencilVals[j] + 1; + } + } + } + break; + case PIPE_STENCIL_OP_DECR: + for (j = 0; j < QUAD_SIZE; j++) { + if (mask & (1 << j)) { + if (stencilVals[j] > 0) { + newstencil[j] = stencilVals[j] - 1; + } + } + } + break; + case PIPE_STENCIL_OP_INCR_WRAP: + for (j = 0; j < QUAD_SIZE; j++) { + if (mask & (1 << j)) { + newstencil[j] = stencilVals[j] + 1; + } + } + break; + case PIPE_STENCIL_OP_DECR_WRAP: + for (j = 0; j < QUAD_SIZE; j++) { + if (mask & (1 << j)) { + newstencil[j] = stencilVals[j] - 1; + } + } + break; + case PIPE_STENCIL_OP_INVERT: + for (j = 0; j < QUAD_SIZE; j++) { + if (mask & (1 << j)) { + newstencil[j] = ~stencilVals[j]; + } + } + break; + default: + assert(0); + } + + /* + * update the stencil values + */ + if (wrtMask != STENCIL_MAX) { + /* apply bit-wise stencil buffer writemask */ + for (j = 0; j < QUAD_SIZE; j++) { + stencilVals[j] = (wrtMask & newstencil[j]) | (~wrtMask & stencilVals[j]); + } + } + else { + for (j = 0; j < QUAD_SIZE; j++) { + stencilVals[j] = newstencil[j]; + } + } +} + + +/** + * Do stencil (and depth) testing. Stenciling depends on the outcome of + * depth testing. + */ +static void +stencil_test_quad(struct quad_stage *qs, struct quad_header *quad) +{ + struct softpipe_context *softpipe = qs->softpipe; + struct pipe_surface *ps = softpipe->framebuffer.zsbuf; + unsigned func, zFailOp, zPassOp, failOp; + ubyte ref, wrtMask, valMask; + ubyte stencilVals[QUAD_SIZE]; + struct softpipe_cached_tile *tile + = sp_get_cached_tile(softpipe, softpipe->zsbuf_cache, quad->x0, quad->y0); + uint j; + uint face = quad->facing; + + if (!softpipe->depth_stencil->stencil[1].enabled) { + /* single-sided stencil test, use front (face=0) state */ + face = 0; + } + + /* choose front or back face function, operator, etc */ + /* XXX we could do these initializations once per primitive */ + func = softpipe->depth_stencil->stencil[face].func; + failOp = softpipe->depth_stencil->stencil[face].fail_op; + zFailOp = softpipe->depth_stencil->stencil[face].zfail_op; + zPassOp = softpipe->depth_stencil->stencil[face].zpass_op; + ref = softpipe->depth_stencil->stencil[face].ref_value; + wrtMask = softpipe->depth_stencil->stencil[face].write_mask; + valMask = softpipe->depth_stencil->stencil[face].value_mask; + + assert(ps); /* shouldn't get here if there's no stencil buffer */ + + /* get stencil values from cached tile */ + switch (ps->format) { + case PIPE_FORMAT_S8Z24_UNORM: + for (j = 0; j < QUAD_SIZE; j++) { + int x = quad->x0 % TILE_SIZE + (j & 1); + int y = quad->y0 % TILE_SIZE + (j >> 1); + stencilVals[j] = tile->data.depth32[y][x] >> 24; + } + break; + case PIPE_FORMAT_Z24S8_UNORM: + for (j = 0; j < QUAD_SIZE; j++) { + int x = quad->x0 % TILE_SIZE + (j & 1); + int y = quad->y0 % TILE_SIZE + (j >> 1); + stencilVals[j] = tile->data.depth32[y][x] & 0xff; + } + break; + case PIPE_FORMAT_S8_UNORM: + for (j = 0; j < QUAD_SIZE; j++) { + int x = quad->x0 % TILE_SIZE + (j & 1); + int y = quad->y0 % TILE_SIZE + (j >> 1); + stencilVals[j] = tile->data.stencil8[y][x]; + } + break; + default: + assert(0); + } + + /* do the stencil test first */ + { + unsigned passMask, failMask; + passMask = do_stencil_test(stencilVals, func, ref, valMask); + failMask = quad->mask & ~passMask; + quad->mask &= passMask; + + if (failOp != PIPE_STENCIL_OP_KEEP) { + apply_stencil_op(stencilVals, failMask, failOp, ref, wrtMask); + } + } + + if (quad->mask) { + /* now the pixels that passed the stencil test are depth tested */ + if (softpipe->depth_stencil->depth.enabled) { + const unsigned origMask = quad->mask; + + sp_depth_test_quad(qs, quad); /* quad->mask is updated */ + + /* update stencil buffer values according to z pass/fail result */ + if (zFailOp != PIPE_STENCIL_OP_KEEP) { + const unsigned failMask = origMask & ~quad->mask; + apply_stencil_op(stencilVals, failMask, zFailOp, ref, wrtMask); + } + + if (zPassOp != PIPE_STENCIL_OP_KEEP) { + const unsigned passMask = origMask & quad->mask; + apply_stencil_op(stencilVals, passMask, zPassOp, ref, wrtMask); + } + } + else { + /* no depth test, apply Zpass operator to stencil buffer values */ + apply_stencil_op(stencilVals, quad->mask, zPassOp, ref, wrtMask); + } + + } + + /* put new stencil values into cached tile */ + switch (ps->format) { + case PIPE_FORMAT_S8Z24_UNORM: + for (j = 0; j < QUAD_SIZE; j++) { + int x = quad->x0 % TILE_SIZE + (j & 1); + int y = quad->y0 % TILE_SIZE + (j >> 1); + uint s8z24 = tile->data.depth32[y][x]; + s8z24 = (stencilVals[j] << 24) | (s8z24 & 0xffffff); + tile->data.depth32[y][x] = s8z24; + } + break; + case PIPE_FORMAT_Z24S8_UNORM: + for (j = 0; j < QUAD_SIZE; j++) { + int x = quad->x0 % TILE_SIZE + (j & 1); + int y = quad->y0 % TILE_SIZE + (j >> 1); + uint z24s8 = tile->data.depth32[y][x]; + z24s8 = (z24s8 & 0xffffff00) | stencilVals[j]; + tile->data.depth32[y][x] = z24s8; + } + break; + case PIPE_FORMAT_S8_UNORM: + for (j = 0; j < QUAD_SIZE; j++) { + int x = quad->x0 % TILE_SIZE + (j & 1); + int y = quad->y0 % TILE_SIZE + (j >> 1); + tile->data.stencil8[y][x] = stencilVals[j]; + } + break; + default: + assert(0); + } + + if (quad->mask) + qs->next->run(qs->next, quad); +} + + +static void stencil_begin(struct quad_stage *qs) +{ + qs->next->begin(qs->next); +} + + +static void stencil_destroy(struct quad_stage *qs) +{ + FREE( qs ); +} + + +struct quad_stage *sp_quad_stencil_test_stage( struct softpipe_context *softpipe ) +{ + struct quad_stage *stage = CALLOC_STRUCT(quad_stage); + + stage->softpipe = softpipe; + stage->begin = stencil_begin; + stage->run = stencil_test_quad; + stage->destroy = stencil_destroy; + + return stage; +} diff --git a/src/gallium/drivers/softpipe/sp_quad_stipple.c b/src/gallium/drivers/softpipe/sp_quad_stipple.c new file mode 100644 index 00000000000..a39ecc2e9d4 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_quad_stipple.c @@ -0,0 +1,94 @@ + +/** + * quad polygon stipple stage + */ + +#include "sp_context.h" +#include "sp_headers.h" +#include "sp_quad.h" +#include "pipe/p_defines.h" +#include "util/u_memory.h" + + +/** + * Apply polygon stipple to quads produced by triangle rasterization + */ +static void +stipple_quad(struct quad_stage *qs, struct quad_header *quad) +{ + static const uint bit31 = 1 << 31; + static const uint bit30 = 1 << 30; + + if (quad->prim == PRIM_TRI) { + struct softpipe_context *softpipe = qs->softpipe; + /* need to invert Y to index into OpenGL's stipple pattern */ + int y0, y1; + uint stipple0, stipple1; + if (softpipe->rasterizer->origin_lower_left) { + y0 = softpipe->framebuffer.height - 1 - quad->y0; + y1 = y0 - 1; + } + else { + y0 = quad->y0; + y1 = y0 + 1; + } + stipple0 = softpipe->poly_stipple.stipple[y0 % 32]; + stipple1 = softpipe->poly_stipple.stipple[y1 % 32]; + +#if 1 + { + const int col0 = quad->x0 % 32; + if ((stipple0 & (bit31 >> col0)) == 0) + quad->mask &= ~MASK_TOP_LEFT; + + if ((stipple0 & (bit30 >> col0)) == 0) + quad->mask &= ~MASK_TOP_RIGHT; + + if ((stipple1 & (bit31 >> col0)) == 0) + quad->mask &= ~MASK_BOTTOM_LEFT; + + if ((stipple1 & (bit30 >> col0)) == 0) + quad->mask &= ~MASK_BOTTOM_RIGHT; + } +#else + /* We'd like to use this code, but we'd need to redefine + * MASK_TOP_LEFT to be (1 << 1) and MASK_TOP_RIGHT to be (1 << 0), + * and similarly for the BOTTOM bits. But that may have undesirable + * side effects elsewhere. + */ + const int col0 = 30 - (quad->x0 % 32); + quad->mask &= (((stipple0 >> col0) & 0x3) | + (((stipple1 >> col0) & 0x3) << 2)); +#endif + if (!quad->mask) + return; + } + + qs->next->run(qs->next, quad); +} + + +static void stipple_begin(struct quad_stage *qs) +{ + qs->next->begin(qs->next); +} + + +static void stipple_destroy(struct quad_stage *qs) +{ + FREE( qs ); +} + + +struct quad_stage * +sp_quad_polygon_stipple_stage( struct softpipe_context *softpipe ) +{ + struct quad_stage *stage = CALLOC_STRUCT(quad_stage); + + stage->softpipe = softpipe; + stage->begin = stipple_begin; + stage->run = stipple_quad; + stage->destroy = stipple_destroy; + + return stage; +} diff --git a/src/gallium/drivers/softpipe/sp_query.c b/src/gallium/drivers/softpipe/sp_query.c new file mode 100644 index 00000000000..2106ee1d235 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_query.c @@ -0,0 +1,107 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Author: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "draw/draw_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_inlines.h" +#include "util/u_memory.h" +#include "sp_context.h" +#include "sp_query.h" + +struct softpipe_query { + uint64 start; + uint64 end; +}; + + +static struct softpipe_query *softpipe_query( struct pipe_query *p ) +{ + return (struct softpipe_query *)p; +} + +static struct pipe_query * +softpipe_create_query(struct pipe_context *pipe, + unsigned type) +{ + assert(type == PIPE_QUERY_OCCLUSION_COUNTER); + return (struct pipe_query *)CALLOC_STRUCT( softpipe_query ); +} + + +static void +softpipe_destroy_query(struct pipe_context *pipe, struct pipe_query *q) +{ + FREE(q); +} + + +static void +softpipe_begin_query(struct pipe_context *pipe, struct pipe_query *q) +{ + struct softpipe_context *softpipe = softpipe_context( pipe ); + struct softpipe_query *sq = softpipe_query(q); + + sq->start = softpipe->occlusion_count; +} + + +static void +softpipe_end_query(struct pipe_context *pipe, struct pipe_query *q) +{ + struct softpipe_context *softpipe = softpipe_context( pipe ); + struct softpipe_query *sq = softpipe_query(q); + + sq->end = softpipe->occlusion_count; +} + + +static boolean +softpipe_get_query_result(struct pipe_context *pipe, + struct pipe_query *q, + boolean wait, + uint64 *result ) +{ + struct softpipe_query *sq = softpipe_query(q); + *result = sq->end - sq->start; + return TRUE; +} + + +void softpipe_init_query_funcs(struct softpipe_context *softpipe ) +{ + softpipe->pipe.create_query = softpipe_create_query; + softpipe->pipe.destroy_query = softpipe_destroy_query; + softpipe->pipe.begin_query = softpipe_begin_query; + softpipe->pipe.end_query = softpipe_end_query; + softpipe->pipe.get_query_result = softpipe_get_query_result; +} + + diff --git a/src/gallium/drivers/softpipe/sp_query.h b/src/gallium/drivers/softpipe/sp_query.h new file mode 100644 index 00000000000..05060a45759 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_query.h @@ -0,0 +1,39 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Author: + * Keith Whitwell + */ + +#ifndef SP_QUERY_H +#define SP_QUERY_H + +struct softpipe_context; +extern void softpipe_init_query_funcs(struct softpipe_context * ); + + +#endif /* SP_QUERY_H */ diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c new file mode 100644 index 00000000000..9644dbd168f --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_screen.c @@ -0,0 +1,177 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +#include "util/u_memory.h" +#include "pipe/p_winsys.h" +#include "pipe/p_defines.h" +#include "pipe/p_screen.h" + +#include "sp_texture.h" +#include "sp_winsys.h" +#include "sp_screen.h" + + +static const char * +softpipe_get_vendor(struct pipe_screen *screen) +{ + return "Tungsten Graphics, Inc."; +} + + +static const char * +softpipe_get_name(struct pipe_screen *screen) +{ + return "softpipe"; +} + + +static int +softpipe_get_param(struct pipe_screen *screen, int param) +{ + switch (param) { + case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS: + return 8; + case PIPE_CAP_NPOT_TEXTURES: + return 1; + case PIPE_CAP_TWO_SIDED_STENCIL: + return 1; + case PIPE_CAP_GLSL: + return 1; + case PIPE_CAP_S3TC: + return 0; + case PIPE_CAP_ANISOTROPIC_FILTER: + return 0; + case PIPE_CAP_POINT_SPRITE: + return 1; + case PIPE_CAP_MAX_RENDER_TARGETS: + return PIPE_MAX_COLOR_BUFS; + case PIPE_CAP_OCCLUSION_QUERY: + return 1; + case PIPE_CAP_TEXTURE_MIRROR_CLAMP: + return 1; + case PIPE_CAP_TEXTURE_MIRROR_REPEAT: + return 1; + case PIPE_CAP_TEXTURE_SHADOW_MAP: + return 1; + case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: + return 12; /* max 2Kx2K */ + case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: + return 8; /* max 128x128x128 */ + case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: + return 12; /* max 2Kx2K */ + default: + return 0; + } +} + + +static float +softpipe_get_paramf(struct pipe_screen *screen, int param) +{ + switch (param) { + case PIPE_CAP_MAX_LINE_WIDTH: + /* fall-through */ + case PIPE_CAP_MAX_LINE_WIDTH_AA: + return 255.0; /* arbitrary */ + case PIPE_CAP_MAX_POINT_WIDTH: + /* fall-through */ + case PIPE_CAP_MAX_POINT_WIDTH_AA: + return 255.0; /* arbitrary */ + case PIPE_CAP_MAX_TEXTURE_ANISOTROPY: + return 0.0; + case PIPE_CAP_MAX_TEXTURE_LOD_BIAS: + return 16.0; /* arbitrary */ + default: + return 0; + } +} + + +/** + * Query format support for creating a texture, drawing surface, etc. + * \param format the format to test + * \param type one of PIPE_TEXTURE, PIPE_SURFACE + */ +static boolean +softpipe_is_format_supported( struct pipe_screen *screen, + enum pipe_format format, + enum pipe_texture_target target, + unsigned tex_usage, + unsigned geom_flags ) +{ + switch(format) { + case PIPE_FORMAT_DXT1_RGB: + case PIPE_FORMAT_DXT1_RGBA: + case PIPE_FORMAT_DXT3_RGBA: + case PIPE_FORMAT_DXT5_RGBA: + return FALSE; + default: + return TRUE; + } +} + + +static void +softpipe_destroy_screen( struct pipe_screen *screen ) +{ + struct pipe_winsys *winsys = screen->winsys; + + if(winsys->destroy) + winsys->destroy(winsys); + + FREE(screen); +} + + + +/** + * Create a new pipe_screen object + * Note: we're not presently subclassing pipe_screen (no softpipe_screen). + */ +struct pipe_screen * +softpipe_create_screen(struct pipe_winsys *winsys) +{ + struct softpipe_screen *screen = CALLOC_STRUCT(softpipe_screen); + + if (!screen) + return NULL; + + screen->base.winsys = winsys; + + screen->base.destroy = softpipe_destroy_screen; + + screen->base.get_name = softpipe_get_name; + screen->base.get_vendor = softpipe_get_vendor; + screen->base.get_param = softpipe_get_param; + screen->base.get_paramf = softpipe_get_paramf; + screen->base.is_format_supported = softpipe_is_format_supported; + + softpipe_init_screen_texture_funcs(&screen->base); + + return &screen->base; +} diff --git a/src/gallium/drivers/softpipe/sp_screen.h b/src/gallium/drivers/softpipe/sp_screen.h new file mode 100644 index 00000000000..3d4bfd3e840 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_screen.h @@ -0,0 +1,58 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + +#ifndef SP_SCREEN_H +#define SP_SCREEN_H + +#include "pipe/p_screen.h" +#include "pipe/p_defines.h" + + + +struct softpipe_screen { + struct pipe_screen base; + + /* Increments whenever textures are modified. Contexts can track + * this. + */ + unsigned timestamp; +}; + + + + +static INLINE struct softpipe_screen * +softpipe_screen( struct pipe_screen *pipe ) +{ + return (struct softpipe_screen *)pipe; +} + + +#endif /* SP_SCREEN_H */ diff --git a/src/gallium/drivers/softpipe/sp_setup.c b/src/gallium/drivers/softpipe/sp_setup.c new file mode 100644 index 00000000000..87336ab6e31 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_setup.c @@ -0,0 +1,1338 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * \brief Primitive rasterization/rendering (points, lines, triangles) + * + * \author Keith Whitwell <keith@tungstengraphics.com> + * \author Brian Paul + */ + +#include "sp_setup.h" + +#include "sp_context.h" +#include "sp_headers.h" +#include "sp_quad.h" +#include "sp_state.h" +#include "sp_prim_setup.h" +#include "draw/draw_context.h" +#include "draw/draw_private.h" +#include "draw/draw_vertex.h" +#include "pipe/p_shader_tokens.h" +#include "util/u_math.h" +#include "util/u_memory.h" + + +#define DEBUG_VERTS 0 +#define DEBUG_FRAGS 0 + +/** + * Triangle edge info + */ +struct edge { + float dx; /**< X(v1) - X(v0), used only during setup */ + float dy; /**< Y(v1) - Y(v0), used only during setup */ + float dxdy; /**< dx/dy */ + float sx, sy; /**< first sample point coord */ + int lines; /**< number of lines on this edge */ +}; + + +/** + * Triangle setup info (derived from draw_stage). + * Also used for line drawing (taking some liberties). + */ +struct setup_context { + struct softpipe_context *softpipe; + + /* Vertices are just an array of floats making up each attribute in + * turn. Currently fixed at 4 floats, but should change in time. + * Codegen will help cope with this. + */ + const float (*vmax)[4]; + const float (*vmid)[4]; + const float (*vmin)[4]; + const float (*vprovoke)[4]; + + struct edge ebot; + struct edge etop; + struct edge emaj; + + float oneoverarea; + + struct tgsi_interp_coef coef[PIPE_MAX_SHADER_INPUTS]; + struct tgsi_interp_coef posCoef; /* For Z, W */ + struct quad_header quad; + + struct { + int left[2]; /**< [0] = row0, [1] = row1 */ + int right[2]; + int y; + unsigned y_flags; + unsigned mask; /**< mask of MASK_BOTTOM/TOP_LEFT/RIGHT bits */ + } span; + +#if DEBUG_FRAGS + uint numFragsEmitted; /**< per primitive */ + uint numFragsWritten; /**< per primitive */ +#endif + + unsigned winding; /* which winding to cull */ +}; + + + +/** + * Test if x is NaN or +/- infinity. + */ +static INLINE boolean +is_inf_or_nan(float x) +{ + union fi tmp; + tmp.f = x; + return !(int)((unsigned int)((tmp.i & 0x7fffffff)-0x7f800000) >> 31); +} + + +static boolean cull_tri( struct setup_context *setup, + float det ) +{ + if (det != 0) + { + /* if (det < 0 then Z points toward camera and triangle is + * counter-clockwise winding. + */ + unsigned winding = (det < 0) ? PIPE_WINDING_CCW : PIPE_WINDING_CW; + + if ((winding & setup->winding) == 0) + return FALSE; + } + + /* Culled: + */ + return TRUE; +} + + + +/** + * Clip setup->quad against the scissor/surface bounds. + */ +static INLINE void +quad_clip(struct setup_context *setup) +{ + const struct pipe_scissor_state *cliprect = &setup->softpipe->cliprect; + const int minx = (int) cliprect->minx; + const int maxx = (int) cliprect->maxx; + const int miny = (int) cliprect->miny; + const int maxy = (int) cliprect->maxy; + + if (setup->quad.x0 >= maxx || + setup->quad.y0 >= maxy || + setup->quad.x0 + 1 < minx || + setup->quad.y0 + 1 < miny) { + /* totally clipped */ + setup->quad.mask = 0x0; + return; + } + if (setup->quad.x0 < minx) + setup->quad.mask &= (MASK_BOTTOM_RIGHT | MASK_TOP_RIGHT); + if (setup->quad.y0 < miny) + setup->quad.mask &= (MASK_BOTTOM_LEFT | MASK_BOTTOM_RIGHT); + if (setup->quad.x0 == maxx - 1) + setup->quad.mask &= (MASK_BOTTOM_LEFT | MASK_TOP_LEFT); + if (setup->quad.y0 == maxy - 1) + setup->quad.mask &= (MASK_TOP_LEFT | MASK_TOP_RIGHT); +} + + +/** + * Emit a quad (pass to next stage) with clipping. + */ +static INLINE void +clip_emit_quad(struct setup_context *setup) +{ + quad_clip(setup); + if (setup->quad.mask) { + struct softpipe_context *sp = setup->softpipe; + sp->quad.first->run(sp->quad.first, &setup->quad); + } +} + + +/** + * Emit a quad (pass to next stage). No clipping is done. + */ +static INLINE void +emit_quad( struct setup_context *setup, int x, int y, unsigned mask ) +{ + struct softpipe_context *sp = setup->softpipe; + setup->quad.x0 = x; + setup->quad.y0 = y; + setup->quad.mask = mask; +#if DEBUG_FRAGS + if (mask & 1) setup->numFragsEmitted++; + if (mask & 2) setup->numFragsEmitted++; + if (mask & 4) setup->numFragsEmitted++; + if (mask & 8) setup->numFragsEmitted++; +#endif + sp->quad.first->run(sp->quad.first, &setup->quad); +#if DEBUG_FRAGS + mask = setup->quad.mask; + if (mask & 1) setup->numFragsWritten++; + if (mask & 2) setup->numFragsWritten++; + if (mask & 4) setup->numFragsWritten++; + if (mask & 8) setup->numFragsWritten++; +#endif +} + + +/** + * Given an X or Y coordinate, return the block/quad coordinate that it + * belongs to. + */ +static INLINE int block( int x ) +{ + return x & ~1; +} + + +/** + * Render a horizontal span of quads + */ +static void flush_spans( struct setup_context *setup ) +{ + const int xleft0 = setup->span.left[0]; + const int xleft1 = setup->span.left[1]; + const int xright0 = setup->span.right[0]; + const int xright1 = setup->span.right[1]; + int minleft, maxright; + int x; + + switch (setup->span.y_flags) { + case 0x3: + /* both odd and even lines written (both quad rows) */ + minleft = block(MIN2(xleft0, xleft1)); + maxright = block(MAX2(xright0, xright1)); + for (x = minleft; x <= maxright; x += 2) { + /* determine which of the four pixels is inside the span bounds */ + uint mask = 0x0; + if (x >= xleft0 && x < xright0) + mask |= MASK_TOP_LEFT; + if (x >= xleft1 && x < xright1) + mask |= MASK_BOTTOM_LEFT; + if (x+1 >= xleft0 && x+1 < xright0) + mask |= MASK_TOP_RIGHT; + if (x+1 >= xleft1 && x+1 < xright1) + mask |= MASK_BOTTOM_RIGHT; + emit_quad( setup, x, setup->span.y, mask ); + } + break; + + case 0x1: + /* only even line written (quad top row) */ + minleft = block(xleft0); + maxright = block(xright0); + for (x = minleft; x <= maxright; x += 2) { + uint mask = 0x0; + if (x >= xleft0 && x < xright0) + mask |= MASK_TOP_LEFT; + if (x+1 >= xleft0 && x+1 < xright0) + mask |= MASK_TOP_RIGHT; + emit_quad( setup, x, setup->span.y, mask ); + } + break; + + case 0x2: + /* only odd line written (quad bottom row) */ + minleft = block(xleft1); + maxright = block(xright1); + for (x = minleft; x <= maxright; x += 2) { + uint mask = 0x0; + if (x >= xleft1 && x < xright1) + mask |= MASK_BOTTOM_LEFT; + if (x+1 >= xleft1 && x+1 < xright1) + mask |= MASK_BOTTOM_RIGHT; + emit_quad( setup, x, setup->span.y, mask ); + } + break; + + default: + return; + } + + setup->span.y = 0; + setup->span.y_flags = 0; + setup->span.right[0] = 0; + setup->span.right[1] = 0; +} + + +#if DEBUG_VERTS +static void print_vertex(const struct setup_context *setup, + const float (*v)[4]) +{ + int i; + debug_printf(" Vertex: (%p)\n", v); + for (i = 0; i < setup->quad.nr_attrs; i++) { + debug_printf(" %d: %f %f %f %f\n", i, + v[i][0], v[i][1], v[i][2], v[i][3]); + } +} +#endif + +/** + * \return FALSE if coords are inf/nan (cull the tri), TRUE otherwise + */ +static boolean setup_sort_vertices( struct setup_context *setup, + float det, + const float (*v0)[4], + const float (*v1)[4], + const float (*v2)[4] ) +{ + setup->vprovoke = v2; + + /* determine bottom to top order of vertices */ + { + float y0 = v0[0][1]; + float y1 = v1[0][1]; + float y2 = v2[0][1]; + if (y0 <= y1) { + if (y1 <= y2) { + /* y0<=y1<=y2 */ + setup->vmin = v0; + setup->vmid = v1; + setup->vmax = v2; + } + else if (y2 <= y0) { + /* y2<=y0<=y1 */ + setup->vmin = v2; + setup->vmid = v0; + setup->vmax = v1; + } + else { + /* y0<=y2<=y1 */ + setup->vmin = v0; + setup->vmid = v2; + setup->vmax = v1; + } + } + else { + if (y0 <= y2) { + /* y1<=y0<=y2 */ + setup->vmin = v1; + setup->vmid = v0; + setup->vmax = v2; + } + else if (y2 <= y1) { + /* y2<=y1<=y0 */ + setup->vmin = v2; + setup->vmid = v1; + setup->vmax = v0; + } + else { + /* y1<=y2<=y0 */ + setup->vmin = v1; + setup->vmid = v2; + setup->vmax = v0; + } + } + } + + setup->ebot.dx = setup->vmid[0][0] - setup->vmin[0][0]; + setup->ebot.dy = setup->vmid[0][1] - setup->vmin[0][1]; + setup->emaj.dx = setup->vmax[0][0] - setup->vmin[0][0]; + setup->emaj.dy = setup->vmax[0][1] - setup->vmin[0][1]; + setup->etop.dx = setup->vmax[0][0] - setup->vmid[0][0]; + setup->etop.dy = setup->vmax[0][1] - setup->vmid[0][1]; + + /* + * Compute triangle's area. Use 1/area to compute partial + * derivatives of attributes later. + * + * The area will be the same as prim->det, but the sign may be + * different depending on how the vertices get sorted above. + * + * To determine whether the primitive is front or back facing we + * use the prim->det value because its sign is correct. + */ + { + const float area = (setup->emaj.dx * setup->ebot.dy - + setup->ebot.dx * setup->emaj.dy); + + setup->oneoverarea = 1.0f / area; + + /* + debug_printf("%s one-over-area %f area %f det %f\n", + __FUNCTION__, setup->oneoverarea, area, det ); + */ + if (is_inf_or_nan(setup->oneoverarea)) + return FALSE; + } + + /* We need to know if this is a front or back-facing triangle for: + * - the GLSL gl_FrontFacing fragment attribute (bool) + * - two-sided stencil test + */ + setup->quad.facing = (det > 0.0) ^ (setup->softpipe->rasterizer->front_winding == PIPE_WINDING_CW); + + return TRUE; +} + + +/** + * Compute a0 for a constant-valued coefficient (GL_FLAT shading). + * The value value comes from vertex[slot][i]. + * The result will be put into setup->coef[slot].a0[i]. + * \param slot which attribute slot + * \param i which component of the slot (0..3) + */ +static void const_coeff( struct setup_context *setup, + struct tgsi_interp_coef *coef, + uint vertSlot, uint i) +{ + assert(i <= 3); + + coef->dadx[i] = 0; + coef->dady[i] = 0; + + /* need provoking vertex info! + */ + coef->a0[i] = setup->vprovoke[vertSlot][i]; +} + + +/** + * Compute a0, dadx and dady for a linearly interpolated coefficient, + * for a triangle. + */ +static void tri_linear_coeff( struct setup_context *setup, + struct tgsi_interp_coef *coef, + uint vertSlot, uint i) +{ + float botda = setup->vmid[vertSlot][i] - setup->vmin[vertSlot][i]; + float majda = setup->vmax[vertSlot][i] - setup->vmin[vertSlot][i]; + float a = setup->ebot.dy * majda - botda * setup->emaj.dy; + float b = setup->emaj.dx * botda - majda * setup->ebot.dx; + float dadx = a * setup->oneoverarea; + float dady = b * setup->oneoverarea; + + assert(i <= 3); + + coef->dadx[i] = dadx; + coef->dady[i] = dady; + + /* calculate a0 as the value which would be sampled for the + * fragment at (0,0), taking into account that we want to sample at + * pixel centers, in other words (0.5, 0.5). + * + * this is neat but unfortunately not a good way to do things for + * triangles with very large values of dadx or dady as it will + * result in the subtraction and re-addition from a0 of a very + * large number, which means we'll end up loosing a lot of the + * fractional bits and precision from a0. the way to fix this is + * to define a0 as the sample at a pixel center somewhere near vmin + * instead - i'll switch to this later. + */ + coef->a0[i] = (setup->vmin[vertSlot][i] - + (dadx * (setup->vmin[0][0] - 0.5f) + + dady * (setup->vmin[0][1] - 0.5f))); + + /* + debug_printf("attr[%d].%c: %f dx:%f dy:%f\n", + slot, "xyzw"[i], + setup->coef[slot].a0[i], + setup->coef[slot].dadx[i], + setup->coef[slot].dady[i]); + */ +} + + +/** + * Compute a0, dadx and dady for a perspective-corrected interpolant, + * for a triangle. + * We basically multiply the vertex value by 1/w before computing + * the plane coefficients (a0, dadx, dady). + * Later, when we compute the value at a particular fragment position we'll + * divide the interpolated value by the interpolated W at that fragment. + */ +static void tri_persp_coeff( struct setup_context *setup, + struct tgsi_interp_coef *coef, + uint vertSlot, uint i) +{ + /* premultiply by 1/w (v[0][3] is always W): + */ + float mina = setup->vmin[vertSlot][i] * setup->vmin[0][3]; + float mida = setup->vmid[vertSlot][i] * setup->vmid[0][3]; + float maxa = setup->vmax[vertSlot][i] * setup->vmax[0][3]; + float botda = mida - mina; + float majda = maxa - mina; + float a = setup->ebot.dy * majda - botda * setup->emaj.dy; + float b = setup->emaj.dx * botda - majda * setup->ebot.dx; + float dadx = a * setup->oneoverarea; + float dady = b * setup->oneoverarea; + + /* + debug_printf("tri persp %d,%d: %f %f %f\n", vertSlot, i, + setup->vmin[vertSlot][i], + setup->vmid[vertSlot][i], + setup->vmax[vertSlot][i] + ); + */ + assert(i <= 3); + + coef->dadx[i] = dadx; + coef->dady[i] = dady; + coef->a0[i] = (mina - + (dadx * (setup->vmin[0][0] - 0.5f) + + dady * (setup->vmin[0][1] - 0.5f))); +} + + +/** + * Special coefficient setup for gl_FragCoord. + * X and Y are trivial, though Y has to be inverted for OpenGL. + * Z and W are copied from posCoef which should have already been computed. + * We could do a bit less work if we'd examine gl_FragCoord's swizzle mask. + */ +static void +setup_fragcoord_coeff(struct setup_context *setup, uint slot) +{ + /*X*/ + setup->coef[slot].a0[0] = 0; + setup->coef[slot].dadx[0] = 1.0; + setup->coef[slot].dady[0] = 0.0; + /*Y*/ + if (setup->softpipe->rasterizer->origin_lower_left) { + /* y=0=bottom */ + const int winHeight = setup->softpipe->framebuffer.height; + setup->coef[slot].a0[1] = (float) (winHeight - 1); + setup->coef[slot].dady[1] = -1.0; + } + else { + /* y=0=top */ + setup->coef[slot].a0[1] = 0.0; + setup->coef[slot].dady[1] = 1.0; + } + setup->coef[slot].dadx[1] = 0.0; + /*Z*/ + setup->coef[slot].a0[2] = setup->posCoef.a0[2]; + setup->coef[slot].dadx[2] = setup->posCoef.dadx[2]; + setup->coef[slot].dady[2] = setup->posCoef.dady[2]; + /*W*/ + setup->coef[slot].a0[3] = setup->posCoef.a0[3]; + setup->coef[slot].dadx[3] = setup->posCoef.dadx[3]; + setup->coef[slot].dady[3] = setup->posCoef.dady[3]; +} + + + +/** + * Compute the setup->coef[] array dadx, dady, a0 values. + * Must be called after setup->vmin,vmid,vmax,vprovoke are initialized. + */ +static void setup_tri_coefficients( struct setup_context *setup ) +{ + struct softpipe_context *softpipe = setup->softpipe; + const struct sp_fragment_shader *spfs = softpipe->fs; + const struct vertex_info *vinfo = softpipe_get_vertex_info(softpipe); + uint fragSlot; + + /* z and w are done by linear interpolation: + */ + tri_linear_coeff(setup, &setup->posCoef, 0, 2); + tri_linear_coeff(setup, &setup->posCoef, 0, 3); + + /* setup interpolation for all the remaining attributes: + */ + for (fragSlot = 0; fragSlot < spfs->info.num_inputs; fragSlot++) { + const uint vertSlot = vinfo->src_index[fragSlot]; + uint j; + + switch (vinfo->interp_mode[fragSlot]) { + case INTERP_CONSTANT: + for (j = 0; j < NUM_CHANNELS; j++) + const_coeff(setup, &setup->coef[fragSlot], vertSlot, j); + break; + case INTERP_LINEAR: + for (j = 0; j < NUM_CHANNELS; j++) + tri_linear_coeff(setup, &setup->coef[fragSlot], vertSlot, j); + break; + case INTERP_PERSPECTIVE: + for (j = 0; j < NUM_CHANNELS; j++) + tri_persp_coeff(setup, &setup->coef[fragSlot], vertSlot, j); + break; + case INTERP_POS: + setup_fragcoord_coeff(setup, fragSlot); + break; + default: + assert(0); + } + + if (spfs->info.input_semantic_name[fragSlot] == TGSI_SEMANTIC_FOG) { + /* FOG.y = front/back facing XXX fix this */ + setup->coef[fragSlot].a0[1] = 1.0f - setup->quad.facing; + setup->coef[fragSlot].dadx[1] = 0.0; + setup->coef[fragSlot].dady[1] = 0.0; + } + } +} + + + +static void setup_tri_edges( struct setup_context *setup ) +{ + float vmin_x = setup->vmin[0][0] + 0.5f; + float vmid_x = setup->vmid[0][0] + 0.5f; + + float vmin_y = setup->vmin[0][1] - 0.5f; + float vmid_y = setup->vmid[0][1] - 0.5f; + float vmax_y = setup->vmax[0][1] - 0.5f; + + setup->emaj.sy = ceilf(vmin_y); + setup->emaj.lines = (int) ceilf(vmax_y - setup->emaj.sy); + setup->emaj.dxdy = setup->emaj.dx / setup->emaj.dy; + setup->emaj.sx = vmin_x + (setup->emaj.sy - vmin_y) * setup->emaj.dxdy; + + setup->etop.sy = ceilf(vmid_y); + setup->etop.lines = (int) ceilf(vmax_y - setup->etop.sy); + setup->etop.dxdy = setup->etop.dx / setup->etop.dy; + setup->etop.sx = vmid_x + (setup->etop.sy - vmid_y) * setup->etop.dxdy; + + setup->ebot.sy = ceilf(vmin_y); + setup->ebot.lines = (int) ceilf(vmid_y - setup->ebot.sy); + setup->ebot.dxdy = setup->ebot.dx / setup->ebot.dy; + setup->ebot.sx = vmin_x + (setup->ebot.sy - vmin_y) * setup->ebot.dxdy; +} + + +/** + * Render the upper or lower half of a triangle. + * Scissoring/cliprect is applied here too. + */ +static void subtriangle( struct setup_context *setup, + struct edge *eleft, + struct edge *eright, + unsigned lines ) +{ + const struct pipe_scissor_state *cliprect = &setup->softpipe->cliprect; + const int minx = (int) cliprect->minx; + const int maxx = (int) cliprect->maxx; + const int miny = (int) cliprect->miny; + const int maxy = (int) cliprect->maxy; + int y, start_y, finish_y; + int sy = (int)eleft->sy; + + assert((int)eleft->sy == (int) eright->sy); + + /* clip top/bottom */ + start_y = sy; + finish_y = sy + lines; + + if (start_y < miny) + start_y = miny; + + if (finish_y > maxy) + finish_y = maxy; + + start_y -= sy; + finish_y -= sy; + + /* + debug_printf("%s %d %d\n", __FUNCTION__, start_y, finish_y); + */ + + for (y = start_y; y < finish_y; y++) { + + /* avoid accumulating adds as floats don't have the precision to + * accurately iterate large triangle edges that way. luckily we + * can just multiply these days. + * + * this is all drowned out by the attribute interpolation anyway. + */ + int left = (int)(eleft->sx + y * eleft->dxdy); + int right = (int)(eright->sx + y * eright->dxdy); + + /* clip left/right */ + if (left < minx) + left = minx; + if (right > maxx) + right = maxx; + + if (left < right) { + int _y = sy + y; + if (block(_y) != setup->span.y) { + flush_spans(setup); + setup->span.y = block(_y); + } + + setup->span.left[_y&1] = left; + setup->span.right[_y&1] = right; + setup->span.y_flags |= 1<<(_y&1); + } + } + + + /* save the values so that emaj can be restarted: + */ + eleft->sx += lines * eleft->dxdy; + eright->sx += lines * eright->dxdy; + eleft->sy += lines; + eright->sy += lines; +} + + +/** + * Recalculate prim's determinant. This is needed as we don't have + * get this information through the vbuf_render interface & we must + * calculate it here. + */ +static float +calc_det( const float (*v0)[4], + const float (*v1)[4], + const float (*v2)[4] ) +{ + /* edge vectors e = v0 - v2, f = v1 - v2 */ + const float ex = v0[0][0] - v2[0][0]; + const float ey = v0[0][1] - v2[0][1]; + const float fx = v1[0][0] - v2[0][0]; + const float fy = v1[0][1] - v2[0][1]; + + /* det = cross(e,f).z */ + return ex * fy - ey * fx; +} + + +/** + * Do setup for triangle rasterization, then render the triangle. + */ +void setup_tri( struct setup_context *setup, + const float (*v0)[4], + const float (*v1)[4], + const float (*v2)[4] ) +{ + float det; + +#if DEBUG_VERTS + debug_printf("Setup triangle:\n"); + print_vertex(setup, v0); + print_vertex(setup, v1); + print_vertex(setup, v2); +#endif + + if (setup->softpipe->no_rast) + return; + + det = calc_det(v0, v1, v2); + /* + debug_printf("%s\n", __FUNCTION__ ); + */ + +#if DEBUG_FRAGS + setup->numFragsEmitted = 0; + setup->numFragsWritten = 0; +#endif + + if (cull_tri( setup, det )) + return; + + if (!setup_sort_vertices( setup, det, v0, v1, v2 )) + return; + setup_tri_coefficients( setup ); + setup_tri_edges( setup ); + + setup->quad.prim = PRIM_TRI; + + setup->span.y = 0; + setup->span.y_flags = 0; + setup->span.right[0] = 0; + setup->span.right[1] = 0; + /* setup->span.z_mode = tri_z_mode( setup->ctx ); */ + + /* init_constant_attribs( setup ); */ + + if (setup->oneoverarea < 0.0) { + /* emaj on left: + */ + subtriangle( setup, &setup->emaj, &setup->ebot, setup->ebot.lines ); + subtriangle( setup, &setup->emaj, &setup->etop, setup->etop.lines ); + } + else { + /* emaj on right: + */ + subtriangle( setup, &setup->ebot, &setup->emaj, setup->ebot.lines ); + subtriangle( setup, &setup->etop, &setup->emaj, setup->etop.lines ); + } + + flush_spans( setup ); + +#if DEBUG_FRAGS + printf("Tri: %u frags emitted, %u written\n", + setup->numFragsEmitted, + setup->numFragsWritten); +#endif +} + + + +/** + * Compute a0, dadx and dady for a linearly interpolated coefficient, + * for a line. + */ +static void +line_linear_coeff(struct setup_context *setup, + struct tgsi_interp_coef *coef, + uint vertSlot, uint i) +{ + const float da = setup->vmax[vertSlot][i] - setup->vmin[vertSlot][i]; + const float dadx = da * setup->emaj.dx * setup->oneoverarea; + const float dady = da * setup->emaj.dy * setup->oneoverarea; + coef->dadx[i] = dadx; + coef->dady[i] = dady; + coef->a0[i] = (setup->vmin[vertSlot][i] - + (dadx * (setup->vmin[0][0] - 0.5f) + + dady * (setup->vmin[0][1] - 0.5f))); +} + + +/** + * Compute a0, dadx and dady for a perspective-corrected interpolant, + * for a line. + */ +static void +line_persp_coeff(struct setup_context *setup, + struct tgsi_interp_coef *coef, + uint vertSlot, uint i) +{ + /* XXX double-check/verify this arithmetic */ + const float a0 = setup->vmin[vertSlot][i] * setup->vmin[0][3]; + const float a1 = setup->vmax[vertSlot][i] * setup->vmax[0][3]; + const float da = a1 - a0; + const float dadx = da * setup->emaj.dx * setup->oneoverarea; + const float dady = da * setup->emaj.dy * setup->oneoverarea; + coef->dadx[i] = dadx; + coef->dady[i] = dady; + coef->a0[i] = (setup->vmin[vertSlot][i] - + (dadx * (setup->vmin[0][0] - 0.5f) + + dady * (setup->vmin[0][1] - 0.5f))); +} + + +/** + * Compute the setup->coef[] array dadx, dady, a0 values. + * Must be called after setup->vmin,vmax are initialized. + */ +static INLINE boolean +setup_line_coefficients(struct setup_context *setup, + const float (*v0)[4], + const float (*v1)[4]) +{ + struct softpipe_context *softpipe = setup->softpipe; + const struct sp_fragment_shader *spfs = softpipe->fs; + const struct vertex_info *vinfo = softpipe_get_vertex_info(softpipe); + uint fragSlot; + float area; + + /* use setup->vmin, vmax to point to vertices */ + setup->vprovoke = v1; + setup->vmin = v0; + setup->vmax = v1; + + setup->emaj.dx = setup->vmax[0][0] - setup->vmin[0][0]; + setup->emaj.dy = setup->vmax[0][1] - setup->vmin[0][1]; + + /* NOTE: this is not really area but something proportional to it */ + area = setup->emaj.dx * setup->emaj.dx + setup->emaj.dy * setup->emaj.dy; + if (area == 0.0f || is_inf_or_nan(area)) + return FALSE; + setup->oneoverarea = 1.0f / area; + + /* z and w are done by linear interpolation: + */ + line_linear_coeff(setup, &setup->posCoef, 0, 2); + line_linear_coeff(setup, &setup->posCoef, 0, 3); + + /* setup interpolation for all the remaining attributes: + */ + for (fragSlot = 0; fragSlot < spfs->info.num_inputs; fragSlot++) { + const uint vertSlot = vinfo->src_index[fragSlot]; + uint j; + + switch (vinfo->interp_mode[fragSlot]) { + case INTERP_CONSTANT: + for (j = 0; j < NUM_CHANNELS; j++) + const_coeff(setup, &setup->coef[fragSlot], vertSlot, j); + break; + case INTERP_LINEAR: + for (j = 0; j < NUM_CHANNELS; j++) + line_linear_coeff(setup, &setup->coef[fragSlot], vertSlot, j); + break; + case INTERP_PERSPECTIVE: + for (j = 0; j < NUM_CHANNELS; j++) + line_persp_coeff(setup, &setup->coef[fragSlot], vertSlot, j); + break; + case INTERP_POS: + setup_fragcoord_coeff(setup, fragSlot); + break; + default: + assert(0); + } + + if (spfs->info.input_semantic_name[fragSlot] == TGSI_SEMANTIC_FOG) { + /* FOG.y = front/back facing XXX fix this */ + setup->coef[fragSlot].a0[1] = 1.0f - setup->quad.facing; + setup->coef[fragSlot].dadx[1] = 0.0; + setup->coef[fragSlot].dady[1] = 0.0; + } + } + return TRUE; +} + + +/** + * Plot a pixel in a line segment. + */ +static INLINE void +plot(struct setup_context *setup, int x, int y) +{ + const int iy = y & 1; + const int ix = x & 1; + const int quadX = x - ix; + const int quadY = y - iy; + const int mask = (1 << ix) << (2 * iy); + + if (quadX != setup->quad.x0 || + quadY != setup->quad.y0) + { + /* flush prev quad, start new quad */ + + if (setup->quad.x0 != -1) + clip_emit_quad(setup); + + setup->quad.x0 = quadX; + setup->quad.y0 = quadY; + setup->quad.mask = 0x0; + } + + setup->quad.mask |= mask; +} + + +/** + * Do setup for line rasterization, then render the line. + * Single-pixel width, no stipple, etc. We rely on the 'draw' module + * to handle stippling and wide lines. + */ +void +setup_line(struct setup_context *setup, + const float (*v0)[4], + const float (*v1)[4]) +{ + int x0 = (int) v0[0][0]; + int x1 = (int) v1[0][0]; + int y0 = (int) v0[0][1]; + int y1 = (int) v1[0][1]; + int dx = x1 - x0; + int dy = y1 - y0; + int xstep, ystep; + +#if DEBUG_VERTS + debug_printf("Setup line:\n"); + print_vertex(setup, v0); + print_vertex(setup, v1); +#endif + + if (setup->softpipe->no_rast) + return; + + if (dx == 0 && dy == 0) + return; + + if (!setup_line_coefficients(setup, v0, v1)) + return; + + assert(v0[0][0] < 1.0e9); + assert(v0[0][1] < 1.0e9); + assert(v1[0][0] < 1.0e9); + assert(v1[0][1] < 1.0e9); + + if (dx < 0) { + dx = -dx; /* make positive */ + xstep = -1; + } + else { + xstep = 1; + } + + if (dy < 0) { + dy = -dy; /* make positive */ + ystep = -1; + } + else { + ystep = 1; + } + + assert(dx >= 0); + assert(dy >= 0); + + setup->quad.x0 = setup->quad.y0 = -1; + setup->quad.mask = 0x0; + setup->quad.prim = PRIM_LINE; + /* XXX temporary: set coverage to 1.0 so the line appears + * if AA mode happens to be enabled. + */ + setup->quad.coverage[0] = + setup->quad.coverage[1] = + setup->quad.coverage[2] = + setup->quad.coverage[3] = 1.0; + + if (dx > dy) { + /*** X-major line ***/ + int i; + const int errorInc = dy + dy; + int error = errorInc - dx; + const int errorDec = error - dx; + + for (i = 0; i < dx; i++) { + plot(setup, x0, y0); + + x0 += xstep; + if (error < 0) { + error += errorInc; + } + else { + error += errorDec; + y0 += ystep; + } + } + } + else { + /*** Y-major line ***/ + int i; + const int errorInc = dx + dx; + int error = errorInc - dy; + const int errorDec = error - dy; + + for (i = 0; i < dy; i++) { + plot(setup, x0, y0); + + y0 += ystep; + if (error < 0) { + error += errorInc; + } + else { + error += errorDec; + x0 += xstep; + } + } + } + + /* draw final quad */ + if (setup->quad.mask) { + clip_emit_quad(setup); + } +} + + +static void +point_persp_coeff(struct setup_context *setup, + const float (*vert)[4], + struct tgsi_interp_coef *coef, + uint vertSlot, uint i) +{ + assert(i <= 3); + coef->dadx[i] = 0.0F; + coef->dady[i] = 0.0F; + coef->a0[i] = vert[vertSlot][i] * vert[0][3]; +} + + +/** + * Do setup for point rasterization, then render the point. + * Round or square points... + * XXX could optimize a lot for 1-pixel points. + */ +void +setup_point( struct setup_context *setup, + const float (*v0)[4] ) +{ + struct softpipe_context *softpipe = setup->softpipe; + const struct sp_fragment_shader *spfs = softpipe->fs; + const int sizeAttr = setup->softpipe->psize_slot; + const float size + = sizeAttr > 0 ? v0[sizeAttr][0] + : setup->softpipe->rasterizer->point_size; + const float halfSize = 0.5F * size; + const boolean round = (boolean) setup->softpipe->rasterizer->point_smooth; + const float x = v0[0][0]; /* Note: data[0] is always position */ + const float y = v0[0][1]; + const struct vertex_info *vinfo = softpipe_get_vertex_info(softpipe); + uint fragSlot; + +#if DEBUG_VERTS + debug_printf("Setup point:\n"); + print_vertex(setup, v0); +#endif + + if (softpipe->no_rast) + return; + + /* For points, all interpolants are constant-valued. + * However, for point sprites, we'll need to setup texcoords appropriately. + * XXX: which coefficients are the texcoords??? + * We may do point sprites as textured quads... + * + * KW: We don't know which coefficients are texcoords - ultimately + * the choice of what interpolation mode to use for each attribute + * should be determined by the fragment program, using + * per-attribute declaration statements that include interpolation + * mode as a parameter. So either the fragment program will have + * to be adjusted for pointsprite vs normal point behaviour, or + * otherwise a special interpolation mode will have to be defined + * which matches the required behaviour for point sprites. But - + * the latter is not a feature of normal hardware, and as such + * probably should be ruled out on that basis. + */ + setup->vprovoke = v0; + + /* setup Z, W */ + const_coeff(setup, &setup->posCoef, 0, 2); + const_coeff(setup, &setup->posCoef, 0, 3); + + for (fragSlot = 0; fragSlot < spfs->info.num_inputs; fragSlot++) { + const uint vertSlot = vinfo->src_index[fragSlot]; + uint j; + + switch (vinfo->interp_mode[fragSlot]) { + case INTERP_CONSTANT: + /* fall-through */ + case INTERP_LINEAR: + for (j = 0; j < NUM_CHANNELS; j++) + const_coeff(setup, &setup->coef[fragSlot], vertSlot, j); + break; + case INTERP_PERSPECTIVE: + for (j = 0; j < NUM_CHANNELS; j++) + point_persp_coeff(setup, setup->vprovoke, + &setup->coef[fragSlot], vertSlot, j); + break; + case INTERP_POS: + setup_fragcoord_coeff(setup, fragSlot); + break; + default: + assert(0); + } + + if (spfs->info.input_semantic_name[fragSlot] == TGSI_SEMANTIC_FOG) { + /* FOG.y = front/back facing XXX fix this */ + setup->coef[fragSlot].a0[1] = 1.0f - setup->quad.facing; + setup->coef[fragSlot].dadx[1] = 0.0; + setup->coef[fragSlot].dady[1] = 0.0; + } + } + + setup->quad.prim = PRIM_POINT; + + if (halfSize <= 0.5 && !round) { + /* special case for 1-pixel points */ + const int ix = ((int) x) & 1; + const int iy = ((int) y) & 1; + setup->quad.x0 = (int) x - ix; + setup->quad.y0 = (int) y - iy; + setup->quad.mask = (1 << ix) << (2 * iy); + clip_emit_quad(setup); + } + else { + if (round) { + /* rounded points */ + const int ixmin = block((int) (x - halfSize)); + const int ixmax = block((int) (x + halfSize)); + const int iymin = block((int) (y - halfSize)); + const int iymax = block((int) (y + halfSize)); + const float rmin = halfSize - 0.7071F; /* 0.7071 = sqrt(2)/2 */ + const float rmax = halfSize + 0.7071F; + const float rmin2 = MAX2(0.0F, rmin * rmin); + const float rmax2 = rmax * rmax; + const float cscale = 1.0F / (rmax2 - rmin2); + int ix, iy; + + for (iy = iymin; iy <= iymax; iy += 2) { + for (ix = ixmin; ix <= ixmax; ix += 2) { + float dx, dy, dist2, cover; + + setup->quad.mask = 0x0; + + dx = (ix + 0.5f) - x; + dy = (iy + 0.5f) - y; + dist2 = dx * dx + dy * dy; + if (dist2 <= rmax2) { + cover = 1.0F - (dist2 - rmin2) * cscale; + setup->quad.coverage[QUAD_TOP_LEFT] = MIN2(cover, 1.0f); + setup->quad.mask |= MASK_TOP_LEFT; + } + + dx = (ix + 1.5f) - x; + dy = (iy + 0.5f) - y; + dist2 = dx * dx + dy * dy; + if (dist2 <= rmax2) { + cover = 1.0F - (dist2 - rmin2) * cscale; + setup->quad.coverage[QUAD_TOP_RIGHT] = MIN2(cover, 1.0f); + setup->quad.mask |= MASK_TOP_RIGHT; + } + + dx = (ix + 0.5f) - x; + dy = (iy + 1.5f) - y; + dist2 = dx * dx + dy * dy; + if (dist2 <= rmax2) { + cover = 1.0F - (dist2 - rmin2) * cscale; + setup->quad.coverage[QUAD_BOTTOM_LEFT] = MIN2(cover, 1.0f); + setup->quad.mask |= MASK_BOTTOM_LEFT; + } + + dx = (ix + 1.5f) - x; + dy = (iy + 1.5f) - y; + dist2 = dx * dx + dy * dy; + if (dist2 <= rmax2) { + cover = 1.0F - (dist2 - rmin2) * cscale; + setup->quad.coverage[QUAD_BOTTOM_RIGHT] = MIN2(cover, 1.0f); + setup->quad.mask |= MASK_BOTTOM_RIGHT; + } + + if (setup->quad.mask) { + setup->quad.x0 = ix; + setup->quad.y0 = iy; + clip_emit_quad(setup); + } + } + } + } + else { + /* square points */ + const int xmin = (int) (x + 0.75 - halfSize); + const int ymin = (int) (y + 0.25 - halfSize); + const int xmax = xmin + (int) size; + const int ymax = ymin + (int) size; + /* XXX could apply scissor to xmin,ymin,xmax,ymax now */ + const int ixmin = block(xmin); + const int ixmax = block(xmax - 1); + const int iymin = block(ymin); + const int iymax = block(ymax - 1); + int ix, iy; + + /* + debug_printf("(%f, %f) -> X:%d..%d Y:%d..%d\n", x, y, xmin, xmax,ymin,ymax); + */ + for (iy = iymin; iy <= iymax; iy += 2) { + uint rowMask = 0xf; + if (iy < ymin) { + /* above the top edge */ + rowMask &= (MASK_BOTTOM_LEFT | MASK_BOTTOM_RIGHT); + } + if (iy + 1 >= ymax) { + /* below the bottom edge */ + rowMask &= (MASK_TOP_LEFT | MASK_TOP_RIGHT); + } + + for (ix = ixmin; ix <= ixmax; ix += 2) { + uint mask = rowMask; + + if (ix < xmin) { + /* fragment is past left edge of point, turn off left bits */ + mask &= (MASK_BOTTOM_RIGHT | MASK_TOP_RIGHT); + } + if (ix + 1 >= xmax) { + /* past the right edge */ + mask &= (MASK_BOTTOM_LEFT | MASK_TOP_LEFT); + } + + setup->quad.mask = mask; + setup->quad.x0 = ix; + setup->quad.y0 = iy; + clip_emit_quad(setup); + } + } + } + } +} + +void setup_prepare( struct setup_context *setup ) +{ + struct softpipe_context *sp = setup->softpipe; + unsigned i; + + if (sp->dirty) { + softpipe_update_derived(sp); + } + + /* Mark surfaces as defined now */ + for (i = 0; i < sp->framebuffer.num_cbufs; i++){ + if (sp->framebuffer.cbufs[i]) { + sp->framebuffer.cbufs[i]->status = PIPE_SURFACE_STATUS_DEFINED; + } + } + if (sp->framebuffer.zsbuf) { + sp->framebuffer.zsbuf->status = PIPE_SURFACE_STATUS_DEFINED; + } + + /* Note: nr_attrs is only used for debugging (vertex printing) */ + setup->quad.nr_attrs = draw_num_vs_outputs(sp->draw); + + sp->quad.first->begin(sp->quad.first); + + if (sp->reduced_api_prim == PIPE_PRIM_TRIANGLES && + sp->rasterizer->fill_cw == PIPE_POLYGON_MODE_FILL && + sp->rasterizer->fill_ccw == PIPE_POLYGON_MODE_FILL) { + /* we'll do culling */ + setup->winding = sp->rasterizer->cull_mode; + } + else { + /* 'draw' will do culling */ + setup->winding = PIPE_WINDING_NONE; + } +} + + + +void setup_destroy_context( struct setup_context *setup ) +{ + FREE( setup ); +} + + +/** + * Create a new primitive setup/render stage. + */ +struct setup_context *setup_create_context( struct softpipe_context *softpipe ) +{ + struct setup_context *setup = CALLOC_STRUCT(setup_context); + + setup->softpipe = softpipe; + + setup->quad.coef = setup->coef; + setup->quad.posCoef = &setup->posCoef; + + return setup; +} diff --git a/src/gallium/drivers/softpipe/sp_setup.h b/src/gallium/drivers/softpipe/sp_setup.h new file mode 100644 index 00000000000..d54f3344288 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_setup.h @@ -0,0 +1,53 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ +#ifndef SP_SETUP_H +#define SP_SETUP_H + +struct setup_context; +struct softpipe_context; + +void +setup_tri( struct setup_context *setup, + const float (*v0)[4], + const float (*v1)[4], + const float (*v2)[4] ); + +void +setup_line(struct setup_context *setup, + const float (*v0)[4], + const float (*v1)[4]); + +void +setup_point( struct setup_context *setup, + const float (*v0)[4] ); + + +struct setup_context *setup_create_context( struct softpipe_context *softpipe ); +void setup_prepare( struct setup_context *setup ); +void setup_destroy_context( struct setup_context *setup ); + +#endif diff --git a/src/gallium/drivers/softpipe/sp_state.h b/src/gallium/drivers/softpipe/sp_state.h new file mode 100644 index 00000000000..476ef3dc8fb --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_state.h @@ -0,0 +1,206 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + +#ifndef SP_STATE_H +#define SP_STATE_H + +#include "pipe/p_state.h" +#include "tgsi/tgsi_scan.h" + + +#define SP_NEW_VIEWPORT 0x1 +#define SP_NEW_RASTERIZER 0x2 +#define SP_NEW_FS 0x4 +#define SP_NEW_BLEND 0x8 +#define SP_NEW_CLIP 0x10 +#define SP_NEW_SCISSOR 0x20 +#define SP_NEW_STIPPLE 0x40 +#define SP_NEW_FRAMEBUFFER 0x80 +#define SP_NEW_DEPTH_STENCIL_ALPHA 0x100 +#define SP_NEW_CONSTANTS 0x200 +#define SP_NEW_SAMPLER 0x400 +#define SP_NEW_TEXTURE 0x800 +#define SP_NEW_VERTEX 0x1000 +#define SP_NEW_VS 0x2000 +#define SP_NEW_QUERY 0x4000 + + +struct tgsi_sampler; +struct tgsi_exec_machine; +struct vertex_info; + + +/** + * Subclass of pipe_shader_state (though it doesn't really need to be). + * + * This is starting to look an awful lot like a quad pipeline stage... + */ +struct sp_fragment_shader { + struct pipe_shader_state shader; + + struct tgsi_shader_info info; + + void (*prepare)( const struct sp_fragment_shader *shader, + struct tgsi_exec_machine *machine, + struct tgsi_sampler *samplers); + + /* Run the shader - this interface will get cleaned up in the + * future: + */ + unsigned (*run)( const struct sp_fragment_shader *shader, + struct tgsi_exec_machine *machine, + struct quad_header *quad ); + + + void (*delete)( struct sp_fragment_shader * ); +}; + + +/** Subclass of pipe_shader_state */ +struct sp_vertex_shader { + struct pipe_shader_state shader; /* Note: this field not actually used */ + struct draw_vertex_shader *draw_data; +}; + + + +void * +softpipe_create_blend_state(struct pipe_context *, + const struct pipe_blend_state *); +void softpipe_bind_blend_state(struct pipe_context *, + void *); +void softpipe_delete_blend_state(struct pipe_context *, + void *); + +void * +softpipe_create_sampler_state(struct pipe_context *, + const struct pipe_sampler_state *); +void softpipe_bind_sampler_states(struct pipe_context *, unsigned, void **); +void softpipe_delete_sampler_state(struct pipe_context *, void *); + +void * +softpipe_create_depth_stencil_state(struct pipe_context *, + const struct pipe_depth_stencil_alpha_state *); +void softpipe_bind_depth_stencil_state(struct pipe_context *, void *); +void softpipe_delete_depth_stencil_state(struct pipe_context *, void *); + +void * +softpipe_create_rasterizer_state(struct pipe_context *, + const struct pipe_rasterizer_state *); +void softpipe_bind_rasterizer_state(struct pipe_context *, void *); +void softpipe_delete_rasterizer_state(struct pipe_context *, void *); + +void softpipe_set_framebuffer_state( struct pipe_context *, + const struct pipe_framebuffer_state * ); + +void softpipe_set_blend_color( struct pipe_context *pipe, + const struct pipe_blend_color *blend_color ); + +void softpipe_set_clip_state( struct pipe_context *, + const struct pipe_clip_state * ); + +void softpipe_set_constant_buffer(struct pipe_context *, + uint shader, uint index, + const struct pipe_constant_buffer *buf); + +void *softpipe_create_fs_state(struct pipe_context *, + const struct pipe_shader_state *); +void softpipe_bind_fs_state(struct pipe_context *, void *); +void softpipe_delete_fs_state(struct pipe_context *, void *); +void *softpipe_create_vs_state(struct pipe_context *, + const struct pipe_shader_state *); +void softpipe_bind_vs_state(struct pipe_context *, void *); +void softpipe_delete_vs_state(struct pipe_context *, void *); + +void softpipe_set_polygon_stipple( struct pipe_context *, + const struct pipe_poly_stipple * ); + +void softpipe_set_scissor_state( struct pipe_context *, + const struct pipe_scissor_state * ); + +void softpipe_set_sampler_textures( struct pipe_context *, + unsigned num, + struct pipe_texture ** ); + +void softpipe_set_viewport_state( struct pipe_context *, + const struct pipe_viewport_state * ); + +void softpipe_set_vertex_elements(struct pipe_context *, + unsigned count, + const struct pipe_vertex_element *); + +void softpipe_set_vertex_buffers(struct pipe_context *, + unsigned count, + const struct pipe_vertex_buffer *); + + +void softpipe_update_derived( struct softpipe_context *softpipe ); + + +boolean softpipe_draw_arrays(struct pipe_context *pipe, unsigned mode, + unsigned start, unsigned count); + +boolean softpipe_draw_elements(struct pipe_context *pipe, + struct pipe_buffer *indexBuffer, + unsigned indexSize, + unsigned mode, unsigned start, unsigned count); +boolean +softpipe_draw_range_elements(struct pipe_context *pipe, + struct pipe_buffer *indexBuffer, + unsigned indexSize, + unsigned min_index, + unsigned max_index, + unsigned mode, unsigned start, unsigned count); + +void +softpipe_set_edgeflags(struct pipe_context *pipe, const unsigned *edgeflags); + + +void +softpipe_map_surfaces(struct softpipe_context *sp); + +void +softpipe_unmap_surfaces(struct softpipe_context *sp); + +void +softpipe_map_texture_surfaces(struct softpipe_context *sp); + +void +softpipe_unmap_texture_surfaces(struct softpipe_context *sp); + + +struct vertex_info * +softpipe_get_vertex_info(struct softpipe_context *softpipe); + +struct vertex_info * +softpipe_get_vbuf_vertex_info(struct softpipe_context *softpipe); + + +#endif diff --git a/src/gallium/drivers/softpipe/sp_state_blend.c b/src/gallium/drivers/softpipe/sp_state_blend.c new file mode 100644 index 00000000000..384fe559afd --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_state_blend.c @@ -0,0 +1,98 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "util/u_memory.h" +#include "sp_context.h" +#include "sp_state.h" + + +void * +softpipe_create_blend_state(struct pipe_context *pipe, + const struct pipe_blend_state *blend) +{ + return mem_dup(blend, sizeof(*blend)); +} + +void softpipe_bind_blend_state( struct pipe_context *pipe, + void *blend ) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + + softpipe->blend = (const struct pipe_blend_state *)blend; + + softpipe->dirty |= SP_NEW_BLEND; +} + +void softpipe_delete_blend_state(struct pipe_context *pipe, + void *blend) +{ + FREE( blend ); +} + + +void softpipe_set_blend_color( struct pipe_context *pipe, + const struct pipe_blend_color *blend_color ) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + + softpipe->blend_color = *blend_color; + + softpipe->dirty |= SP_NEW_BLEND; +} + + +/** XXX move someday? Or consolidate all these simple state setters + * into one file. + */ + + +void * +softpipe_create_depth_stencil_state(struct pipe_context *pipe, + const struct pipe_depth_stencil_alpha_state *depth_stencil) +{ + return mem_dup(depth_stencil, sizeof(*depth_stencil)); +} + +void +softpipe_bind_depth_stencil_state(struct pipe_context *pipe, + void *depth_stencil) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + + softpipe->depth_stencil = (const struct pipe_depth_stencil_alpha_state *)depth_stencil; + + softpipe->dirty |= SP_NEW_DEPTH_STENCIL_ALPHA; +} + +void +softpipe_delete_depth_stencil_state(struct pipe_context *pipe, void *depth) +{ + FREE( depth ); +} diff --git a/src/gallium/drivers/softpipe/sp_state_clip.c b/src/gallium/drivers/softpipe/sp_state_clip.c new file mode 100644 index 00000000000..4946c776e3e --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_state_clip.c @@ -0,0 +1,79 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ +#include "sp_context.h" +#include "sp_state.h" +#include "draw/draw_context.h" + + +void softpipe_set_clip_state( struct pipe_context *pipe, + const struct pipe_clip_state *clip ) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + + /* pass the clip state to the draw module */ + draw_set_clip_state(softpipe->draw, clip); +} + + +void softpipe_set_viewport_state( struct pipe_context *pipe, + const struct pipe_viewport_state *viewport ) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + + /* pass the viewport info to the draw module */ + draw_set_viewport_state(softpipe->draw, viewport); + + softpipe->viewport = *viewport; /* struct copy */ + softpipe->dirty |= SP_NEW_VIEWPORT; +} + + +void softpipe_set_scissor_state( struct pipe_context *pipe, + const struct pipe_scissor_state *scissor ) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + + draw_flush(softpipe->draw); + + softpipe->scissor = *scissor; /* struct copy */ + softpipe->dirty |= SP_NEW_SCISSOR; +} + + +void softpipe_set_polygon_stipple( struct pipe_context *pipe, + const struct pipe_poly_stipple *stipple ) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + + draw_flush(softpipe->draw); + + softpipe->poly_stipple = *stipple; /* struct copy */ + softpipe->dirty |= SP_NEW_STIPPLE; +} diff --git a/src/gallium/drivers/softpipe/sp_state_derived.c b/src/gallium/drivers/softpipe/sp_state_derived.c new file mode 100644 index 00000000000..6b6a4c3ff34 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_state_derived.c @@ -0,0 +1,210 @@ +/************************************************************************** + * + * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include "util/u_math.h" +#include "util/u_memory.h" +#include "pipe/p_shader_tokens.h" +#include "draw/draw_context.h" +#include "draw/draw_vertex.h" +#include "draw/draw_private.h" +#include "sp_context.h" +#include "sp_state.h" + + +/** + * Mark the current vertex layout as "invalid". + * We'll validate the vertex layout later, when we start to actually + * render a point or line or tri. + */ +static void +invalidate_vertex_layout(struct softpipe_context *softpipe) +{ + softpipe->vertex_info.num_attribs = 0; +} + + +/** + * The vertex info describes how to convert the post-transformed vertices + * (simple float[][4]) used by the 'draw' module into vertices for + * rasterization. + * + * This function validates the vertex layout and returns a pointer to a + * vertex_info object. + */ +struct vertex_info * +softpipe_get_vertex_info(struct softpipe_context *softpipe) +{ + struct vertex_info *vinfo = &softpipe->vertex_info; + + if (vinfo->num_attribs == 0) { + /* compute vertex layout now */ + const struct sp_fragment_shader *spfs = softpipe->fs; + const enum interp_mode colorInterp + = softpipe->rasterizer->flatshade ? INTERP_CONSTANT : INTERP_LINEAR; + uint i; + + if (softpipe->vbuf) { + /* if using the post-transform vertex buffer, tell draw_vbuf to + * simply emit the whole post-xform vertex as-is: + */ + struct vertex_info *vinfo_vbuf = &softpipe->vertex_info_vbuf; + const uint num = draw_num_vs_outputs(softpipe->draw); + uint i; + + /* No longer any need to try and emit draw vertex_header info. + */ + vinfo_vbuf->num_attribs = 0; + for (i = 0; i < num; i++) { + draw_emit_vertex_attr(vinfo_vbuf, EMIT_4F, INTERP_PERSPECTIVE, i); + } + draw_compute_vertex_size(vinfo_vbuf); + } + + /* + * Loop over fragment shader inputs, searching for the matching output + * from the vertex shader. + */ + vinfo->num_attribs = 0; + for (i = 0; i < spfs->info.num_inputs; i++) { + int src; + switch (spfs->info.input_semantic_name[i]) { + case TGSI_SEMANTIC_POSITION: + src = draw_find_vs_output(softpipe->draw, + TGSI_SEMANTIC_POSITION, 0); + draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_POS, src); + break; + + case TGSI_SEMANTIC_COLOR: + src = draw_find_vs_output(softpipe->draw, TGSI_SEMANTIC_COLOR, + spfs->info.input_semantic_index[i]); + draw_emit_vertex_attr(vinfo, EMIT_4F, colorInterp, src); + break; + + case TGSI_SEMANTIC_FOG: + src = draw_find_vs_output(softpipe->draw, TGSI_SEMANTIC_FOG, 0); + draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, src); + break; + + case TGSI_SEMANTIC_GENERIC: + /* this includes texcoords and varying vars */ + src = draw_find_vs_output(softpipe->draw, TGSI_SEMANTIC_GENERIC, + spfs->info.input_semantic_index[i]); + draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, src); + break; + + default: + assert(0); + } + } + + softpipe->psize_slot = draw_find_vs_output(softpipe->draw, + TGSI_SEMANTIC_PSIZE, 0); + if (softpipe->psize_slot > 0) { + draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_CONSTANT, + softpipe->psize_slot); + } + + draw_compute_vertex_size(vinfo); + } + + return vinfo; +} + + +/** + * Called from vbuf module. + * + * Note that there's actually two different vertex layouts in softpipe. + * + * The normal one is computed in softpipe_get_vertex_info() above and is + * used by the point/line/tri "setup" code. + * + * The other one (this one) is only used by the vbuf module (which is + * not normally used by default but used in testing). For the vbuf module, + * we basically want to pass-through the draw module's vertex layout as-is. + * When the softpipe vbuf code begins drawing, the normal vertex layout + * will come into play again. + */ +struct vertex_info * +softpipe_get_vbuf_vertex_info(struct softpipe_context *softpipe) +{ + (void) softpipe_get_vertex_info(softpipe); + return &softpipe->vertex_info_vbuf; +} + + +/** + * Recompute cliprect from scissor bounds, scissor enable and surface size. + */ +static void +compute_cliprect(struct softpipe_context *sp) +{ + uint surfWidth = sp->framebuffer.width; + uint surfHeight = sp->framebuffer.height; + + if (sp->rasterizer->scissor) { + /* clip to scissor rect */ + sp->cliprect.minx = MAX2(sp->scissor.minx, 0); + sp->cliprect.miny = MAX2(sp->scissor.miny, 0); + sp->cliprect.maxx = MIN2(sp->scissor.maxx, surfWidth); + sp->cliprect.maxy = MIN2(sp->scissor.maxy, surfHeight); + } + else { + /* clip to surface bounds */ + sp->cliprect.minx = 0; + sp->cliprect.miny = 0; + sp->cliprect.maxx = surfWidth; + sp->cliprect.maxy = surfHeight; + } +} + + +/* Hopefully this will remain quite simple, otherwise need to pull in + * something like the state tracker mechanism. + */ +void softpipe_update_derived( struct softpipe_context *softpipe ) +{ + if (softpipe->dirty & (SP_NEW_RASTERIZER | + SP_NEW_FS | + SP_NEW_VS)) + invalidate_vertex_layout( softpipe ); + + if (softpipe->dirty & (SP_NEW_SCISSOR | + SP_NEW_DEPTH_STENCIL_ALPHA | + SP_NEW_FRAMEBUFFER)) + compute_cliprect(softpipe); + + if (softpipe->dirty & (SP_NEW_BLEND | + SP_NEW_DEPTH_STENCIL_ALPHA | + SP_NEW_FRAMEBUFFER | + SP_NEW_RASTERIZER | + SP_NEW_FS | + SP_NEW_QUERY)) + sp_build_quad_pipeline(softpipe); + + softpipe->dirty = 0; +} diff --git a/src/gallium/drivers/softpipe/sp_state_fs.c b/src/gallium/drivers/softpipe/sp_state_fs.c new file mode 100644 index 00000000000..1be461b3a46 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_state_fs.c @@ -0,0 +1,161 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include "sp_context.h" +#include "sp_state.h" +#include "sp_fs.h" + +#include "pipe/p_defines.h" +#include "util/u_memory.h" +#include "pipe/p_inlines.h" +#include "pipe/p_winsys.h" +#include "pipe/p_shader_tokens.h" +#include "draw/draw_context.h" +#include "tgsi/tgsi_dump.h" +#include "tgsi/tgsi_scan.h" + + +void * +softpipe_create_fs_state(struct pipe_context *pipe, + const struct pipe_shader_state *templ) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + struct sp_fragment_shader *state; + + /* debug */ + if (softpipe->dump_fs) + tgsi_dump(templ->tokens, 0); + + /* codegen */ + state = softpipe_create_fs_llvm( softpipe, templ ); + if (!state) { + state = softpipe_create_fs_sse( softpipe, templ ); + if (!state) { + state = softpipe_create_fs_exec( softpipe, templ ); + } + } + + assert(state); + + /* get/save the summary info for this shader */ + tgsi_scan_shader(templ->tokens, &state->info); + + return state; +} + + +void +softpipe_bind_fs_state(struct pipe_context *pipe, void *fs) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + + softpipe->fs = (struct sp_fragment_shader *) fs; + + softpipe->dirty |= SP_NEW_FS; +} + + +void +softpipe_delete_fs_state(struct pipe_context *pipe, void *fs) +{ + struct sp_fragment_shader *state = fs; + + assert(fs != softpipe_context(pipe)->fs); + + state->delete( state ); +} + + +void * +softpipe_create_vs_state(struct pipe_context *pipe, + const struct pipe_shader_state *templ) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + struct sp_vertex_shader *state; + + state = CALLOC_STRUCT(sp_vertex_shader); + if (state == NULL ) { + return NULL; + } + + state->draw_data = draw_create_vertex_shader(softpipe->draw, templ); + if (state->draw_data == NULL) { + FREE( state ); + return NULL; + } + + return state; +} + + +void +softpipe_bind_vs_state(struct pipe_context *pipe, void *vs) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + + softpipe->vs = (const struct sp_vertex_shader *)vs; + + draw_bind_vertex_shader(softpipe->draw, + (softpipe->vs ? softpipe->vs->draw_data : NULL)); + + softpipe->dirty |= SP_NEW_VS; +} + + +void +softpipe_delete_vs_state(struct pipe_context *pipe, void *vs) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + + struct sp_vertex_shader *state = + (struct sp_vertex_shader *)vs; + + draw_delete_vertex_shader(softpipe->draw, state->draw_data); + FREE( state ); +} + + + +void +softpipe_set_constant_buffer(struct pipe_context *pipe, + uint shader, uint index, + const struct pipe_constant_buffer *buf) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + struct pipe_winsys *ws = pipe->winsys; + + assert(shader < PIPE_SHADER_TYPES); + assert(index == 0); + + /* note: reference counting */ + pipe_buffer_reference(ws, + &softpipe->constants[shader].buffer, + buf ? buf->buffer : NULL); + softpipe->constants[shader].size = buf ? buf->size : 0; + + softpipe->dirty |= SP_NEW_CONSTANTS; +} diff --git a/src/gallium/drivers/softpipe/sp_state_rasterizer.c b/src/gallium/drivers/softpipe/sp_state_rasterizer.c new file mode 100644 index 00000000000..87b72196838 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_state_rasterizer.c @@ -0,0 +1,62 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include "pipe/p_defines.h" +#include "util/u_memory.h" +#include "sp_context.h" +#include "sp_state.h" +#include "draw/draw_context.h" + + + +void * +softpipe_create_rasterizer_state(struct pipe_context *pipe, + const struct pipe_rasterizer_state *rast) +{ + return mem_dup(rast, sizeof(*rast)); +} + +void softpipe_bind_rasterizer_state(struct pipe_context *pipe, + void *setup) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + + /* pass-through to draw module */ + draw_set_rasterizer_state(softpipe->draw, setup); + + softpipe->rasterizer = (struct pipe_rasterizer_state *)setup; + + softpipe->dirty |= SP_NEW_RASTERIZER; +} + +void softpipe_delete_rasterizer_state(struct pipe_context *pipe, + void *rasterizer) +{ + FREE( rasterizer ); +} + + diff --git a/src/gallium/drivers/softpipe/sp_state_sampler.c b/src/gallium/drivers/softpipe/sp_state_sampler.c new file mode 100644 index 00000000000..99a28c0d7e0 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_state_sampler.c @@ -0,0 +1,118 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: + * Brian Paul + */ + +#include "util/u_memory.h" +#include "pipe/p_inlines.h" + +#include "draw/draw_context.h" + +#include "sp_context.h" +#include "sp_context.h" +#include "sp_state.h" +#include "sp_texture.h" +#include "sp_tile_cache.h" +#include "draw/draw_context.h" + + + +void * +softpipe_create_sampler_state(struct pipe_context *pipe, + const struct pipe_sampler_state *sampler) +{ + return mem_dup(sampler, sizeof(*sampler)); +} + + +void +softpipe_bind_sampler_states(struct pipe_context *pipe, + unsigned num, void **sampler) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + unsigned i; + + assert(num <= PIPE_MAX_SAMPLERS); + + /* Check for no-op */ + if (num == softpipe->num_samplers && + !memcmp(softpipe->sampler, sampler, num * sizeof(void *))) + return; + + draw_flush(softpipe->draw); + + for (i = 0; i < num; ++i) + softpipe->sampler[i] = sampler[i]; + for (i = num; i < PIPE_MAX_SAMPLERS; ++i) + softpipe->sampler[i] = NULL; + + softpipe->num_samplers = num; + + softpipe->dirty |= SP_NEW_SAMPLER; +} + + +void +softpipe_set_sampler_textures(struct pipe_context *pipe, + unsigned num, struct pipe_texture **texture) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + uint i; + + assert(num <= PIPE_MAX_SAMPLERS); + + /* Check for no-op */ + if (num == softpipe->num_textures && + !memcmp(softpipe->texture, texture, num * sizeof(struct pipe_texture *))) + return; + + draw_flush(softpipe->draw); + + for (i = 0; i < PIPE_MAX_SAMPLERS; i++) { + struct pipe_texture *tex = i < num ? texture[i] : NULL; + + pipe_texture_reference(&softpipe->texture[i], tex); + sp_tile_cache_set_texture(pipe, softpipe->tex_cache[i], tex); + } + + softpipe->num_textures = num; + + softpipe->dirty |= SP_NEW_TEXTURE; +} + + +void +softpipe_delete_sampler_state(struct pipe_context *pipe, + void *sampler) +{ + FREE( sampler ); +} + + + diff --git a/src/gallium/drivers/softpipe/sp_state_surface.c b/src/gallium/drivers/softpipe/sp_state_surface.c new file mode 100644 index 00000000000..ba8c9eece72 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_state_surface.c @@ -0,0 +1,108 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ +#include "pipe/p_inlines.h" + +#include "sp_context.h" +#include "sp_state.h" +#include "sp_surface.h" +#include "sp_tile_cache.h" + + +/** + * XXX this might get moved someday + * Set the framebuffer surface info: color buffers, zbuffer, stencil buffer. + * Here, we flush the old surfaces and update the tile cache to point to the new + * surfaces. + */ +void +softpipe_set_framebuffer_state(struct pipe_context *pipe, + const struct pipe_framebuffer_state *fb) +{ + struct softpipe_context *sp = softpipe_context(pipe); + uint i; + + for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) { + /* check if changing cbuf */ + if (sp->framebuffer.cbufs[i] != fb->cbufs[i]) { + /* flush old */ + sp_flush_tile_cache(sp, sp->cbuf_cache[i]); + + /* assign new */ + sp->framebuffer.cbufs[i] = fb->cbufs[i]; + + /* update cache */ + sp_tile_cache_set_surface(sp->cbuf_cache[i], fb->cbufs[i]); + } + } + + sp->framebuffer.num_cbufs = fb->num_cbufs; + + /* zbuf changing? */ + if (sp->framebuffer.zsbuf != fb->zsbuf) { + /* flush old */ + sp_flush_tile_cache(sp, sp->zsbuf_cache); + + /* assign new */ + sp->framebuffer.zsbuf = fb->zsbuf; + + /* update cache */ + sp_tile_cache_set_surface(sp->zsbuf_cache, fb->zsbuf); + } + +#if 0 + /* XXX combined depth/stencil here */ + + /* sbuf changing? */ + if (sp->framebuffer.sbuf != fb->sbuf) { + /* flush old */ + sp_flush_tile_cache(sp, sp->sbuf_cache_sep); + + /* assign new */ + sp->framebuffer.sbuf = fb->sbuf; + + /* update cache */ + if (fb->sbuf != fb->zbuf) { + /* separate stencil buf */ + sp->sbuf_cache = sp->sbuf_cache_sep; + sp_tile_cache_set_surface(sp->sbuf_cache, fb->sbuf); + } + else { + /* combined depth/stencil */ + sp->sbuf_cache = sp->zbuf_cache; + sp_tile_cache_set_surface(sp->sbuf_cache, fb->sbuf); + } + } +#endif + + sp->framebuffer.width = fb->width; + sp->framebuffer.height = fb->height; + + sp->dirty |= SP_NEW_FRAMEBUFFER; +} diff --git a/src/gallium/drivers/softpipe/sp_state_vertex.c b/src/gallium/drivers/softpipe/sp_state_vertex.c new file mode 100644 index 00000000000..46b6991195d --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_state_vertex.c @@ -0,0 +1,73 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + + +#include "sp_context.h" +#include "sp_state.h" +#include "sp_surface.h" + +#include "draw/draw_context.h" + + +void +softpipe_set_vertex_elements(struct pipe_context *pipe, + unsigned count, + const struct pipe_vertex_element *attribs) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + + assert(count <= PIPE_MAX_ATTRIBS); + + memcpy(softpipe->vertex_element, attribs, + count * sizeof(struct pipe_vertex_element)); + softpipe->num_vertex_elements = count; + + softpipe->dirty |= SP_NEW_VERTEX; + + draw_set_vertex_elements(softpipe->draw, count, attribs); +} + + +void +softpipe_set_vertex_buffers(struct pipe_context *pipe, + unsigned count, + const struct pipe_vertex_buffer *buffers) +{ + struct softpipe_context *softpipe = softpipe_context(pipe); + + assert(count <= PIPE_MAX_ATTRIBS); + + memcpy(softpipe->vertex_buffer, buffers, count * sizeof(buffers[0])); + softpipe->num_vertex_buffers = count; + + softpipe->dirty |= SP_NEW_VERTEX; + + draw_set_vertex_buffers(softpipe->draw, count, buffers); +} diff --git a/src/gallium/drivers/softpipe/sp_surface.c b/src/gallium/drivers/softpipe/sp_surface.c new file mode 100644 index 00000000000..389aceb27ce --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_surface.c @@ -0,0 +1,156 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include "pipe/p_defines.h" +#include "pipe/p_inlines.h" +#include "pipe/p_winsys.h" +#include "util/u_tile.h" +#include "util/u_rect.h" +#include "sp_context.h" +#include "sp_surface.h" + + + +/** + * Copy a rectangular region from one surface to another. + * Surfaces must have same bpp. + * + * Note that it's always the case that Y=0=top of the raster. + * If do_flip is non-zero, the region being copied will be flipped vertically. + * + * Assumes all values are within bounds -- no checking at this level - + * do it higher up if required. + */ +static void +sp_surface_copy(struct pipe_context *pipe, + boolean do_flip, + struct pipe_surface *dst, + unsigned dstx, unsigned dsty, + struct pipe_surface *src, + unsigned srcx, unsigned srcy, unsigned width, unsigned height) +{ + void *dst_map = pipe->screen->surface_map( pipe->screen, + dst, + PIPE_BUFFER_USAGE_CPU_WRITE ); + + const void *src_map = pipe->screen->surface_map( pipe->screen, + src, + PIPE_BUFFER_USAGE_CPU_READ ); + + assert(dst->block.size == src->block.size); + assert(dst->block.width == src->block.width); + assert(dst->block.height == src->block.height); + assert(src_map); + assert(dst_map); + + /* If do_flip, invert src_y position and pass negative src stride */ + pipe_copy_rect(dst_map, + &dst->block, + dst->stride, + dstx, dsty, + width, height, + src_map, + do_flip ? -(int) src->stride : src->stride, + srcx, srcy); + + pipe->screen->surface_unmap(pipe->screen, src); + pipe->screen->surface_unmap(pipe->screen, dst); +} + + +static void * +get_pointer(struct pipe_surface *dst, void *dst_map, unsigned x, unsigned y) +{ + return (char *)dst_map + y / dst->block.height * dst->stride + x / dst->block.width * dst->block.size; +} + + +#define UBYTE_TO_USHORT(B) ((B) | ((B) << 8)) + + +/** + * Fill a rectangular sub-region. Need better logic about when to + * push buffers into AGP - will currently do so whenever possible. + */ +static void +sp_surface_fill(struct pipe_context *pipe, + struct pipe_surface *dst, + unsigned dstx, unsigned dsty, + unsigned width, unsigned height, unsigned value) +{ + unsigned i, j; + void *dst_map = pipe->screen->surface_map( pipe->screen, + dst, + PIPE_BUFFER_USAGE_CPU_WRITE ); + + assert(dst->stride > 0); + + + switch (dst->block.size) { + case 1: + case 2: + case 4: + pipe_fill_rect(dst_map, &dst->block, dst->stride, dstx, dsty, width, height, value); + break; + case 8: + { + /* expand the 4-byte clear value to an 8-byte value */ + ushort *row = (ushort *) get_pointer(dst, dst_map, dstx, dsty); + ushort val0 = UBYTE_TO_USHORT((value >> 0) & 0xff); + ushort val1 = UBYTE_TO_USHORT((value >> 8) & 0xff); + ushort val2 = UBYTE_TO_USHORT((value >> 16) & 0xff); + ushort val3 = UBYTE_TO_USHORT((value >> 24) & 0xff); + val0 = (val0 << 8) | val0; + val1 = (val1 << 8) | val1; + val2 = (val2 << 8) | val2; + val3 = (val3 << 8) | val3; + for (i = 0; i < height; i++) { + for (j = 0; j < width; j++) { + row[j*4+0] = val0; + row[j*4+1] = val1; + row[j*4+2] = val2; + row[j*4+3] = val3; + } + row += dst->stride/2; + } + } + break; + default: + assert(0); + break; + } + + pipe->screen->surface_unmap(pipe->screen, dst); +} + + +void +sp_init_surface_functions(struct softpipe_context *sp) +{ + sp->pipe.surface_copy = sp_surface_copy; + sp->pipe.surface_fill = sp_surface_fill; +} diff --git a/src/gallium/drivers/softpipe/sp_surface.h b/src/gallium/drivers/softpipe/sp_surface.h new file mode 100644 index 00000000000..22de3ba43f6 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_surface.h @@ -0,0 +1,42 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* Authors: Keith Whitwell <keith@tungstengraphics.com> + */ + +#ifndef SP_SURFACE_H +#define SP_SURFACE_H + + +struct softpipe_context; + + +extern void +sp_init_surface_functions(struct softpipe_context *sp); + + +#endif /* SP_SURFACE_H */ diff --git a/src/gallium/drivers/softpipe/sp_tex_sample.c b/src/gallium/drivers/softpipe/sp_tex_sample.c new file mode 100644 index 00000000000..49250ec084c --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_tex_sample.c @@ -0,0 +1,1086 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * Texture sampling + * + * Authors: + * Brian Paul + */ + +#include "sp_context.h" +#include "sp_headers.h" +#include "sp_surface.h" +#include "sp_tex_sample.h" +#include "sp_tile_cache.h" +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "tgsi/tgsi_exec.h" +#include "util/u_math.h" +#include "util/u_memory.h" + + +/* + * Note, the FRAC macro has to work perfectly. Otherwise you'll sometimes + * see 1-pixel bands of improperly weighted linear-filtered textures. + * The tests/texwrap.c demo is a good test. + * Also note, FRAC(x) doesn't truly return the fractional part of x for x < 0. + * Instead, if x < 0 then FRAC(x) = 1 - true_frac(x). + */ +#define FRAC(f) ((f) - util_ifloor(f)) + + +/** + * Linear interpolation macro + */ +#define LERP(T, A, B) ( (A) + (T) * ((B) - (A)) ) + + +/** + * Do 2D/biliner interpolation of float values. + * v00, v10, v01 and v11 are typically four texture samples in a square/box. + * a and b are the horizontal and vertical interpolants. + * It's important that this function is inlined when compiled with + * optimization! If we find that's not true on some systems, convert + * to a macro. + */ +static INLINE float +lerp_2d(float a, float b, + float v00, float v10, float v01, float v11) +{ + const float temp0 = LERP(a, v00, v10); + const float temp1 = LERP(a, v01, v11); + return LERP(b, temp0, temp1); +} + + +/** + * If A is a signed integer, A % B doesn't give the right value for A < 0 + * (in terms of texture repeat). Just casting to unsigned fixes that. + */ +#define REMAINDER(A, B) ((unsigned) (A) % (unsigned) (B)) + + +/** + * Apply texture coord wrapping mode and return integer texture index. + * \param wrapMode PIPE_TEX_WRAP_x + * \param s the texcoord + * \param size the texture image size + * \return integer texture index + */ +static INLINE int +nearest_texcoord(unsigned wrapMode, float s, unsigned size) +{ + int i; + switch (wrapMode) { + case PIPE_TEX_WRAP_REPEAT: + /* s limited to [0,1) */ + /* i limited to [0,size-1] */ + i = util_ifloor(s * size); + i = REMAINDER(i, size); + return i; + case PIPE_TEX_WRAP_CLAMP: + /* s limited to [0,1] */ + /* i limited to [0,size-1] */ + if (s <= 0.0F) + i = 0; + else if (s >= 1.0F) + i = size - 1; + else + i = util_ifloor(s * size); + return i; + case PIPE_TEX_WRAP_CLAMP_TO_EDGE: + { + /* s limited to [min,max] */ + /* i limited to [0, size-1] */ + const float min = 1.0F / (2.0F * size); + const float max = 1.0F - min; + if (s < min) + i = 0; + else if (s > max) + i = size - 1; + else + i = util_ifloor(s * size); + } + return i; + case PIPE_TEX_WRAP_CLAMP_TO_BORDER: + { + /* s limited to [min,max] */ + /* i limited to [-1, size] */ + const float min = -1.0F / (2.0F * size); + const float max = 1.0F - min; + if (s <= min) + i = -1; + else if (s >= max) + i = size; + else + i = util_ifloor(s * size); + } + return i; + case PIPE_TEX_WRAP_MIRROR_REPEAT: + { + const float min = 1.0F / (2.0F * size); + const float max = 1.0F - min; + const int flr = util_ifloor(s); + float u; + if (flr & 1) + u = 1.0F - (s - (float) flr); + else + u = s - (float) flr; + if (u < min) + i = 0; + else if (u > max) + i = size - 1; + else + i = util_ifloor(u * size); + } + return i; + case PIPE_TEX_WRAP_MIRROR_CLAMP: + { + /* s limited to [0,1] */ + /* i limited to [0,size-1] */ + const float u = fabsf(s); + if (u <= 0.0F) + i = 0; + else if (u >= 1.0F) + i = size - 1; + else + i = util_ifloor(u * size); + } + return i; + case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE: + { + /* s limited to [min,max] */ + /* i limited to [0, size-1] */ + const float min = 1.0F / (2.0F * size); + const float max = 1.0F - min; + const float u = fabsf(s); + if (u < min) + i = 0; + else if (u > max) + i = size - 1; + else + i = util_ifloor(u * size); + } + return i; + case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER: + { + /* s limited to [min,max] */ + /* i limited to [0, size-1] */ + const float min = -1.0F / (2.0F * size); + const float max = 1.0F - min; + const float u = fabsf(s); + if (u < min) + i = -1; + else if (u > max) + i = size; + else + i = util_ifloor(u * size); + } + return i; + default: + assert(0); + return 0; + } +} + + +/** + * Used to compute texel locations for linear sampling. + * \param wrapMode PIPE_TEX_WRAP_x + * \param s the texcoord + * \param size the texture image size + * \param i0 returns first texture index + * \param i1 returns second texture index (usually *i0 + 1) + * \param a returns blend factor/weight between texture indexes + */ +static INLINE void +linear_texcoord(unsigned wrapMode, float s, unsigned size, + int *i0, int *i1, float *a) +{ + float u; + switch (wrapMode) { + case PIPE_TEX_WRAP_REPEAT: + u = s * size - 0.5F; + *i0 = REMAINDER(util_ifloor(u), size); + *i1 = REMAINDER(*i0 + 1, size); + break; + case PIPE_TEX_WRAP_CLAMP: + if (s <= 0.0F) + u = 0.0F; + else if (s >= 1.0F) + u = (float) size; + else + u = s * size; + u -= 0.5F; + *i0 = util_ifloor(u); + *i1 = *i0 + 1; + break; + case PIPE_TEX_WRAP_CLAMP_TO_EDGE: + if (s <= 0.0F) + u = 0.0F; + else if (s >= 1.0F) + u = (float) size; + else + u = s * size; + u -= 0.5F; + *i0 = util_ifloor(u); + *i1 = *i0 + 1; + if (*i0 < 0) + *i0 = 0; + if (*i1 >= (int) size) + *i1 = size - 1; + break; + case PIPE_TEX_WRAP_CLAMP_TO_BORDER: + { + const float min = -1.0F / (2.0F * size); + const float max = 1.0F - min; + if (s <= min) + u = min * size; + else if (s >= max) + u = max * size; + else + u = s * size; + u -= 0.5F; + *i0 = util_ifloor(u); + *i1 = *i0 + 1; + } + break; + case PIPE_TEX_WRAP_MIRROR_REPEAT: + { + const int flr = util_ifloor(s); + if (flr & 1) + u = 1.0F - (s - (float) flr); + else + u = s - (float) flr; + u = (u * size) - 0.5F; + *i0 = util_ifloor(u); + *i1 = *i0 + 1; + if (*i0 < 0) + *i0 = 0; + if (*i1 >= (int) size) + *i1 = size - 1; + } + break; + case PIPE_TEX_WRAP_MIRROR_CLAMP: + u = fabsf(s); + if (u >= 1.0F) + u = (float) size; + else + u *= size; + u -= 0.5F; + *i0 = util_ifloor(u); + *i1 = *i0 + 1; + break; + case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE: + u = fabsf(s); + if (u >= 1.0F) + u = (float) size; + else + u *= size; + u -= 0.5F; + *i0 = util_ifloor(u); + *i1 = *i0 + 1; + if (*i0 < 0) + *i0 = 0; + if (*i1 >= (int) size) + *i1 = size - 1; + break; + case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER: + { + const float min = -1.0F / (2.0F * size); + const float max = 1.0F - min; + u = fabsf(s); + if (u <= min) + u = min * size; + else if (u >= max) + u = max * size; + else + u *= size; + u -= 0.5F; + *i0 = util_ifloor(u); + *i1 = *i0 + 1; + } + break; + default: + assert(0); + } + *a = FRAC(u); +} + + +/** + * For RECT textures / unnormalized texcoords + * Only a subset of wrap modes supported. + */ +static INLINE int +nearest_texcoord_unnorm(unsigned wrapMode, float s, unsigned size) +{ + int i; + switch (wrapMode) { + case PIPE_TEX_WRAP_CLAMP: + i = util_ifloor(s); + return CLAMP(i, 0, (int) size-1); + case PIPE_TEX_WRAP_CLAMP_TO_EDGE: + /* fall-through */ + case PIPE_TEX_WRAP_CLAMP_TO_BORDER: + return util_ifloor( CLAMP(s, 0.5F, (float) size - 0.5F) ); + default: + assert(0); + return 0; + } +} + + +/** + * For RECT textures / unnormalized texcoords. + * Only a subset of wrap modes supported. + */ +static INLINE void +linear_texcoord_unnorm(unsigned wrapMode, float s, unsigned size, + int *i0, int *i1, float *a) +{ + switch (wrapMode) { + case PIPE_TEX_WRAP_CLAMP: + /* Not exactly what the spec says, but it matches NVIDIA output */ + s = CLAMP(s - 0.5F, 0.0f, (float) size - 1.0f); + *i0 = util_ifloor(s); + *i1 = *i0 + 1; + break; + case PIPE_TEX_WRAP_CLAMP_TO_EDGE: + /* fall-through */ + case PIPE_TEX_WRAP_CLAMP_TO_BORDER: + s = CLAMP(s, 0.5F, (float) size - 0.5F); + s -= 0.5F; + *i0 = util_ifloor(s); + *i1 = *i0 + 1; + if (*i1 > (int) size - 1) + *i1 = size - 1; + break; + default: + assert(0); + } + *a = FRAC(s); +} + + +static unsigned +choose_cube_face(float rx, float ry, float rz, float *newS, float *newT) +{ + /* + major axis + direction target sc tc ma + ---------- ------------------------------- --- --- --- + +rx TEXTURE_CUBE_MAP_POSITIVE_X_EXT -rz -ry rx + -rx TEXTURE_CUBE_MAP_NEGATIVE_X_EXT +rz -ry rx + +ry TEXTURE_CUBE_MAP_POSITIVE_Y_EXT +rx +rz ry + -ry TEXTURE_CUBE_MAP_NEGATIVE_Y_EXT +rx -rz ry + +rz TEXTURE_CUBE_MAP_POSITIVE_Z_EXT +rx -ry rz + -rz TEXTURE_CUBE_MAP_NEGATIVE_Z_EXT -rx -ry rz + */ + const float arx = fabsf(rx), ary = fabsf(ry), arz = fabsf(rz); + unsigned face; + float sc, tc, ma; + + if (arx > ary && arx > arz) { + if (rx >= 0.0F) { + face = PIPE_TEX_FACE_POS_X; + sc = -rz; + tc = -ry; + ma = arx; + } + else { + face = PIPE_TEX_FACE_NEG_X; + sc = rz; + tc = -ry; + ma = arx; + } + } + else if (ary > arx && ary > arz) { + if (ry >= 0.0F) { + face = PIPE_TEX_FACE_POS_Y; + sc = rx; + tc = rz; + ma = ary; + } + else { + face = PIPE_TEX_FACE_NEG_Y; + sc = rx; + tc = -rz; + ma = ary; + } + } + else { + if (rz > 0.0F) { + face = PIPE_TEX_FACE_POS_Z; + sc = rx; + tc = -ry; + ma = arz; + } + else { + face = PIPE_TEX_FACE_NEG_Z; + sc = -rx; + tc = -ry; + ma = arz; + } + } + + *newS = ( sc / ma + 1.0F ) * 0.5F; + *newT = ( tc / ma + 1.0F ) * 0.5F; + + return face; +} + + +/** + * Examine the quad's texture coordinates to compute the partial + * derivatives w.r.t X and Y, then compute lambda (level of detail). + * + * This is only done for fragment shaders, not vertex shaders. + */ +static float +compute_lambda(struct tgsi_sampler *sampler, + const float s[QUAD_SIZE], + const float t[QUAD_SIZE], + const float p[QUAD_SIZE], + float lodbias) +{ + float rho, lambda; + + assert(sampler->state->normalized_coords); + + assert(s); + { + float dsdx = s[QUAD_BOTTOM_RIGHT] - s[QUAD_BOTTOM_LEFT]; + float dsdy = s[QUAD_TOP_LEFT] - s[QUAD_BOTTOM_LEFT]; + dsdx = fabsf(dsdx); + dsdy = fabsf(dsdy); + rho = MAX2(dsdx, dsdy) * sampler->texture->width[0]; + } + if (t) { + float dtdx = t[QUAD_BOTTOM_RIGHT] - t[QUAD_BOTTOM_LEFT]; + float dtdy = t[QUAD_TOP_LEFT] - t[QUAD_BOTTOM_LEFT]; + float max; + dtdx = fabsf(dtdx); + dtdy = fabsf(dtdy); + max = MAX2(dtdx, dtdy) * sampler->texture->height[0]; + rho = MAX2(rho, max); + } + if (p) { + float dpdx = p[QUAD_BOTTOM_RIGHT] - p[QUAD_BOTTOM_LEFT]; + float dpdy = p[QUAD_TOP_LEFT] - p[QUAD_BOTTOM_LEFT]; + float max; + dpdx = fabsf(dpdx); + dpdy = fabsf(dpdy); + max = MAX2(dpdx, dpdy) * sampler->texture->depth[0]; + rho = MAX2(rho, max); + } + + lambda = util_fast_log2(rho); + lambda += lodbias + sampler->state->lod_bias; + lambda = CLAMP(lambda, sampler->state->min_lod, sampler->state->max_lod); + + return lambda; +} + + +/** + * Do several things here: + * 1. Compute lambda from the texcoords, if needed + * 2. Determine if we're minifying or magnifying + * 3. If minifying, choose mipmap levels + * 4. Return image filter to use within mipmap images + */ +static void +choose_mipmap_levels(struct tgsi_sampler *sampler, + const float s[QUAD_SIZE], + const float t[QUAD_SIZE], + const float p[QUAD_SIZE], + float lodbias, + unsigned *level0, unsigned *level1, float *levelBlend, + unsigned *imgFilter) +{ + if (sampler->state->min_mip_filter == PIPE_TEX_MIPFILTER_NONE) { + /* no mipmap selection needed */ + *level0 = *level1 = CLAMP((int) sampler->state->min_lod, + 0, (int) sampler->texture->last_level); + + if (sampler->state->min_img_filter != sampler->state->mag_img_filter) { + /* non-mipmapped texture, but still need to determine if doing + * minification or magnification. + */ + float lambda = compute_lambda(sampler, s, t, p, lodbias); + if (lambda <= 0.0) { + *imgFilter = sampler->state->mag_img_filter; + } + else { + *imgFilter = sampler->state->min_img_filter; + } + } + else { + *imgFilter = sampler->state->mag_img_filter; + } + } + else { + float lambda; + + if (1) + /* fragment shader */ + lambda = compute_lambda(sampler, s, t, p, lodbias); + else + /* vertex shader */ + lambda = lodbias; /* not really a bias, but absolute LOD */ + + if (lambda <= 0.0) { /* XXX threshold depends on the filter */ + /* magnifying */ + *imgFilter = sampler->state->mag_img_filter; + *level0 = *level1 = 0; + } + else { + /* minifying */ + *imgFilter = sampler->state->min_img_filter; + + /* choose mipmap level(s) and compute the blend factor between them */ + if (sampler->state->min_mip_filter == PIPE_TEX_MIPFILTER_NEAREST) { + /* Nearest mipmap level */ + const int lvl = (int) (lambda + 0.5); + *level0 = + *level1 = CLAMP(lvl, 0, (int) sampler->texture->last_level); + } + else { + /* Linear interpolation between mipmap levels */ + const int lvl = (int) lambda; + *level0 = CLAMP(lvl, 0, (int) sampler->texture->last_level); + *level1 = CLAMP(lvl + 1, 0, (int) sampler->texture->last_level); + *levelBlend = FRAC(lambda); /* blending weight between levels */ + } + } + } +} + + +/** + * Get a texel from a texture, using the texture tile cache. + * + * \param face the cube face in 0..5 + * \param level the mipmap level + * \param x the x coord of texel within 2D image + * \param y the y coord of texel within 2D image + * \param z which slice of a 3D texture + * \param rgba the quad to put the texel/color into + * \param j which element of the rgba quad to write to + * + * XXX maybe move this into sp_tile_cache.c and merge with the + * sp_get_cached_tile_tex() function. Also, get 4 texels instead of 1... + */ +static void +get_texel(struct tgsi_sampler *sampler, + unsigned face, unsigned level, int x, int y, int z, + float rgba[NUM_CHANNELS][QUAD_SIZE], unsigned j) +{ + if (x < 0 || x >= (int) sampler->texture->width[level] || + y < 0 || y >= (int) sampler->texture->height[level] || + z < 0 || z >= (int) sampler->texture->depth[level]) { + rgba[0][j] = sampler->state->border_color[0]; + rgba[1][j] = sampler->state->border_color[1]; + rgba[2][j] = sampler->state->border_color[2]; + rgba[3][j] = sampler->state->border_color[3]; + } + else { + const int tx = x % TILE_SIZE; + const int ty = y % TILE_SIZE; + const struct softpipe_cached_tile *tile + = sp_get_cached_tile_tex(sampler->pipe, sampler->cache, + x, y, z, face, level); + rgba[0][j] = tile->data.color[ty][tx][0]; + rgba[1][j] = tile->data.color[ty][tx][1]; + rgba[2][j] = tile->data.color[ty][tx][2]; + rgba[3][j] = tile->data.color[ty][tx][3]; + if (0) + { + debug_printf("Get texel %f %f %f %f from %s\n", + rgba[0][j], rgba[1][j], rgba[2][j], rgba[3][j], + pf_name(sampler->texture->format)); + } + } +} + + +/** + * Compare texcoord 'p' (aka R) against texture value 'rgba[0]' + * When we sampled the depth texture, the depth value was put into all + * RGBA channels. We look at the red channel here. + */ +static INLINE void +shadow_compare(uint compare_func, + float rgba[NUM_CHANNELS][QUAD_SIZE], + const float p[QUAD_SIZE], + uint j) +{ + int k; + switch (compare_func) { + case PIPE_FUNC_LESS: + k = p[j] < rgba[0][j]; + break; + case PIPE_FUNC_LEQUAL: + k = p[j] <= rgba[0][j]; + break; + case PIPE_FUNC_GREATER: + k = p[j] > rgba[0][j]; + break; + case PIPE_FUNC_GEQUAL: + k = p[j] >= rgba[0][j]; + break; + case PIPE_FUNC_EQUAL: + k = p[j] == rgba[0][j]; + break; + case PIPE_FUNC_NOTEQUAL: + k = p[j] != rgba[0][j]; + break; + case PIPE_FUNC_ALWAYS: + k = 1; + break; + case PIPE_FUNC_NEVER: + k = 0; + break; + default: + k = 0; + assert(0); + break; + } + + rgba[0][j] = rgba[1][j] = rgba[2][j] = (float) k; +} + + +/** + * Common code for sampling 1D/2D/cube textures. + * Could probably extend for 3D... + */ +static void +sp_get_samples_2d_common(struct tgsi_sampler *sampler, + const float s[QUAD_SIZE], + const float t[QUAD_SIZE], + const float p[QUAD_SIZE], + float lodbias, + float rgba[NUM_CHANNELS][QUAD_SIZE], + const unsigned faces[4]) +{ + const uint compare_func = sampler->state->compare_func; + unsigned level0, level1, j, imgFilter; + int width, height; + float levelBlend; + + choose_mipmap_levels(sampler, s, t, p, lodbias, + &level0, &level1, &levelBlend, &imgFilter); + + assert(sampler->state->normalized_coords); + + width = sampler->texture->width[level0]; + height = sampler->texture->height[level0]; + + assert(width > 0); + + switch (imgFilter) { + case PIPE_TEX_FILTER_NEAREST: + for (j = 0; j < QUAD_SIZE; j++) { + int x = nearest_texcoord(sampler->state->wrap_s, s[j], width); + int y = nearest_texcoord(sampler->state->wrap_t, t[j], height); + get_texel(sampler, faces[j], level0, x, y, 0, rgba, j); + if (sampler->state->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) { + shadow_compare(compare_func, rgba, p, j); + } + + if (level0 != level1) { + /* get texels from second mipmap level and blend */ + float rgba2[4][4]; + unsigned c; + x = x / 2; + y = y / 2; + get_texel(sampler, faces[j], level1, x, y, 0, rgba2, j); + if (sampler->state->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE){ + shadow_compare(compare_func, rgba2, p, j); + } + + for (c = 0; c < NUM_CHANNELS; c++) { + rgba[c][j] = LERP(levelBlend, rgba[c][j], rgba2[c][j]); + } + } + } + break; + case PIPE_TEX_FILTER_LINEAR: + case PIPE_TEX_FILTER_ANISO: + for (j = 0; j < QUAD_SIZE; j++) { + float tx[4][4], a, b; + int x0, y0, x1, y1, c; + linear_texcoord(sampler->state->wrap_s, s[j], width, &x0, &x1, &a); + linear_texcoord(sampler->state->wrap_t, t[j], height, &y0, &y1, &b); + get_texel(sampler, faces[j], level0, x0, y0, 0, tx, 0); + get_texel(sampler, faces[j], level0, x1, y0, 0, tx, 1); + get_texel(sampler, faces[j], level0, x0, y1, 0, tx, 2); + get_texel(sampler, faces[j], level0, x1, y1, 0, tx, 3); + if (sampler->state->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) { + shadow_compare(compare_func, tx, p, 0); + shadow_compare(compare_func, tx, p, 1); + shadow_compare(compare_func, tx, p, 2); + shadow_compare(compare_func, tx, p, 3); + } + + for (c = 0; c < 4; c++) { + rgba[c][j] = lerp_2d(a, b, tx[c][0], tx[c][1], tx[c][2], tx[c][3]); + } + + if (level0 != level1) { + /* get texels from second mipmap level and blend */ + float rgba2[4][4]; + x0 = x0 / 2; + y0 = y0 / 2; + x1 = x1 / 2; + y1 = y1 / 2; + get_texel(sampler, faces[j], level1, x0, y0, 0, tx, 0); + get_texel(sampler, faces[j], level1, x1, y0, 0, tx, 1); + get_texel(sampler, faces[j], level1, x0, y1, 0, tx, 2); + get_texel(sampler, faces[j], level1, x1, y1, 0, tx, 3); + if (sampler->state->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE){ + shadow_compare(compare_func, tx, p, 0); + shadow_compare(compare_func, tx, p, 1); + shadow_compare(compare_func, tx, p, 2); + shadow_compare(compare_func, tx, p, 3); + } + + for (c = 0; c < 4; c++) { + rgba2[c][j] = lerp_2d(a, b, + tx[c][0], tx[c][1], tx[c][2], tx[c][3]); + } + + for (c = 0; c < NUM_CHANNELS; c++) { + rgba[c][j] = LERP(levelBlend, rgba[c][j], rgba2[c][j]); + } + } + } + break; + default: + assert(0); + } +} + + +static void +sp_get_samples_1d(struct tgsi_sampler *sampler, + const float s[QUAD_SIZE], + const float t[QUAD_SIZE], + const float p[QUAD_SIZE], + float lodbias, + float rgba[NUM_CHANNELS][QUAD_SIZE]) +{ + static const unsigned faces[4] = {0, 0, 0, 0}; + static const float tzero[4] = {0, 0, 0, 0}; + sp_get_samples_2d_common(sampler, s, tzero, NULL, lodbias, rgba, faces); +} + + +static void +sp_get_samples_2d(struct tgsi_sampler *sampler, + const float s[QUAD_SIZE], + const float t[QUAD_SIZE], + const float p[QUAD_SIZE], + float lodbias, + float rgba[NUM_CHANNELS][QUAD_SIZE]) +{ + static const unsigned faces[4] = {0, 0, 0, 0}; + sp_get_samples_2d_common(sampler, s, t, p, lodbias, rgba, faces); +} + + +static void +sp_get_samples_3d(struct tgsi_sampler *sampler, + const float s[QUAD_SIZE], + const float t[QUAD_SIZE], + const float p[QUAD_SIZE], + float lodbias, + float rgba[NUM_CHANNELS][QUAD_SIZE]) +{ + /* get/map pipe_surfaces corresponding to 3D tex slices */ + unsigned level0, level1, j, imgFilter; + int width, height, depth; + float levelBlend; + const uint face = 0; + + choose_mipmap_levels(sampler, s, t, p, lodbias, + &level0, &level1, &levelBlend, &imgFilter); + + assert(sampler->state->normalized_coords); + + width = sampler->texture->width[level0]; + height = sampler->texture->height[level0]; + depth = sampler->texture->depth[level0]; + + assert(width > 0); + assert(height > 0); + assert(depth > 0); + + switch (imgFilter) { + case PIPE_TEX_FILTER_NEAREST: + for (j = 0; j < QUAD_SIZE; j++) { + int x = nearest_texcoord(sampler->state->wrap_s, s[j], width); + int y = nearest_texcoord(sampler->state->wrap_t, t[j], height); + int z = nearest_texcoord(sampler->state->wrap_r, p[j], depth); + get_texel(sampler, face, level0, x, y, z, rgba, j); + + if (level0 != level1) { + /* get texels from second mipmap level and blend */ + float rgba2[4][4]; + unsigned c; + x /= 2; + y /= 2; + z /= 2; + get_texel(sampler, face, level1, x, y, z, rgba2, j); + for (c = 0; c < NUM_CHANNELS; c++) { + rgba[c][j] = LERP(levelBlend, rgba2[c][j], rgba[c][j]); + } + } + } + break; + case PIPE_TEX_FILTER_LINEAR: + case PIPE_TEX_FILTER_ANISO: + for (j = 0; j < QUAD_SIZE; j++) { + float texel0[4][4], texel1[4][4]; + float xw, yw, zw; /* interpolation weights */ + int x0, x1, y0, y1, z0, z1, c; + linear_texcoord(sampler->state->wrap_s, s[j], width, &x0, &x1, &xw); + linear_texcoord(sampler->state->wrap_t, t[j], height, &y0, &y1, &yw); + linear_texcoord(sampler->state->wrap_r, p[j], depth, &z0, &z1, &zw); + get_texel(sampler, face, level0, x0, y0, z0, texel0, 0); + get_texel(sampler, face, level0, x1, y0, z0, texel0, 1); + get_texel(sampler, face, level0, x0, y1, z0, texel0, 2); + get_texel(sampler, face, level0, x1, y1, z0, texel0, 3); + get_texel(sampler, face, level0, x0, y0, z1, texel1, 0); + get_texel(sampler, face, level0, x1, y0, z1, texel1, 1); + get_texel(sampler, face, level0, x0, y1, z1, texel1, 2); + get_texel(sampler, face, level0, x1, y1, z1, texel1, 3); + + /* 3D lerp */ + for (c = 0; c < 4; c++) { + float ctemp0[4][4], ctemp1[4][4]; + ctemp0[c][j] = lerp_2d(xw, yw, + texel0[c][0], texel0[c][1], + texel0[c][2], texel0[c][3]); + ctemp1[c][j] = lerp_2d(xw, yw, + texel1[c][0], texel1[c][1], + texel1[c][2], texel1[c][3]); + rgba[c][j] = LERP(zw, ctemp0[c][j], ctemp1[c][j]); + } + + if (level0 != level1) { + /* get texels from second mipmap level and blend */ + float rgba2[4][4]; + x0 /= 2; + y0 /= 2; + z0 /= 2; + x1 /= 2; + y1 /= 2; + z1 /= 2; + get_texel(sampler, face, level1, x0, y0, z0, texel0, 0); + get_texel(sampler, face, level1, x1, y0, z0, texel0, 1); + get_texel(sampler, face, level1, x0, y1, z0, texel0, 2); + get_texel(sampler, face, level1, x1, y1, z0, texel0, 3); + get_texel(sampler, face, level1, x0, y0, z1, texel1, 0); + get_texel(sampler, face, level1, x1, y0, z1, texel1, 1); + get_texel(sampler, face, level1, x0, y1, z1, texel1, 2); + get_texel(sampler, face, level1, x1, y1, z1, texel1, 3); + + /* 3D lerp */ + for (c = 0; c < 4; c++) { + float ctemp0[4][4], ctemp1[4][4]; + ctemp0[c][j] = lerp_2d(xw, yw, + texel0[c][0], texel0[c][1], + texel0[c][2], texel0[c][3]); + ctemp1[c][j] = lerp_2d(xw, yw, + texel1[c][0], texel1[c][1], + texel1[c][2], texel1[c][3]); + rgba2[c][j] = LERP(zw, ctemp0[c][j], ctemp1[c][j]); + } + + /* blend mipmap levels */ + for (c = 0; c < NUM_CHANNELS; c++) { + rgba[c][j] = LERP(levelBlend, rgba[c][j], rgba2[c][j]); + } + } + } + break; + default: + assert(0); + } +} + + +static void +sp_get_samples_cube(struct tgsi_sampler *sampler, + const float s[QUAD_SIZE], + const float t[QUAD_SIZE], + const float p[QUAD_SIZE], + float lodbias, + float rgba[NUM_CHANNELS][QUAD_SIZE]) +{ + unsigned faces[QUAD_SIZE], j; + float ssss[4], tttt[4]; + for (j = 0; j < QUAD_SIZE; j++) { + faces[j] = choose_cube_face(s[j], t[j], p[j], ssss + j, tttt + j); + } + sp_get_samples_2d_common(sampler, ssss, tttt, NULL, lodbias, rgba, faces); +} + + +static void +sp_get_samples_rect(struct tgsi_sampler *sampler, + const float s[QUAD_SIZE], + const float t[QUAD_SIZE], + const float p[QUAD_SIZE], + float lodbias, + float rgba[NUM_CHANNELS][QUAD_SIZE]) +{ + //sp_get_samples_2d_common(sampler, s, t, p, lodbias, rgba, faces); + static const uint face = 0; + const uint compare_func = sampler->state->compare_func; + unsigned level0, level1, j, imgFilter; + int width, height; + float levelBlend; + + choose_mipmap_levels(sampler, s, t, p, lodbias, + &level0, &level1, &levelBlend, &imgFilter); + + /* texture RECTS cannot be mipmapped */ + assert(level0 == level1); + + width = sampler->texture->width[level0]; + height = sampler->texture->height[level0]; + + assert(width > 0); + + switch (imgFilter) { + case PIPE_TEX_FILTER_NEAREST: + for (j = 0; j < QUAD_SIZE; j++) { + int x = nearest_texcoord_unnorm(sampler->state->wrap_s, s[j], width); + int y = nearest_texcoord_unnorm(sampler->state->wrap_t, t[j], height); + get_texel(sampler, face, level0, x, y, 0, rgba, j); + if (sampler->state->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) { + shadow_compare(compare_func, rgba, p, j); + } + } + break; + case PIPE_TEX_FILTER_LINEAR: + case PIPE_TEX_FILTER_ANISO: + for (j = 0; j < QUAD_SIZE; j++) { + float tx[4][4], a, b; + int x0, y0, x1, y1, c; + linear_texcoord_unnorm(sampler->state->wrap_s, s[j], width, &x0, &x1, &a); + linear_texcoord_unnorm(sampler->state->wrap_t, t[j], height, &y0, &y1, &b); + get_texel(sampler, face, level0, x0, y0, 0, tx, 0); + get_texel(sampler, face, level0, x1, y0, 0, tx, 1); + get_texel(sampler, face, level0, x0, y1, 0, tx, 2); + get_texel(sampler, face, level0, x1, y1, 0, tx, 3); + if (sampler->state->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) { + shadow_compare(compare_func, tx, p, 0); + shadow_compare(compare_func, tx, p, 1); + shadow_compare(compare_func, tx, p, 2); + shadow_compare(compare_func, tx, p, 3); + } + + for (c = 0; c < 4; c++) { + rgba[c][j] = lerp_2d(a, b, tx[c][0], tx[c][1], tx[c][2], tx[c][3]); + } + } + break; + default: + assert(0); + } +} + + + + +/** + * Called via tgsi_sampler::get_samples() + * Use the sampler's state setting to get a filtered RGBA value + * from the sampler's texture. + * + * XXX we can implement many versions of this function, each + * tightly coded for a specific combination of sampler state + * (nearest + repeat), (bilinear mipmap + clamp), etc. + * + * The update_samplers() function in st_atom_sampler.c could create + * a new tgsi_sampler object for each state combo it finds.... + */ +void +sp_get_samples(struct tgsi_sampler *sampler, + const float s[QUAD_SIZE], + const float t[QUAD_SIZE], + const float p[QUAD_SIZE], + float lodbias, + float rgba[NUM_CHANNELS][QUAD_SIZE]) +{ + if (!sampler->texture) + return; + + switch (sampler->texture->target) { + case PIPE_TEXTURE_1D: + assert(sampler->state->normalized_coords); + sp_get_samples_1d(sampler, s, t, p, lodbias, rgba); + break; + case PIPE_TEXTURE_2D: + if (sampler->state->normalized_coords) + sp_get_samples_2d(sampler, s, t, p, lodbias, rgba); + else + sp_get_samples_rect(sampler, s, t, p, lodbias, rgba); + break; + case PIPE_TEXTURE_3D: + assert(sampler->state->normalized_coords); + sp_get_samples_3d(sampler, s, t, p, lodbias, rgba); + break; + case PIPE_TEXTURE_CUBE: + assert(sampler->state->normalized_coords); + sp_get_samples_cube(sampler, s, t, p, lodbias, rgba); + break; + default: + assert(0); + } + +#if 0 /* DEBUG */ + { + int i; + printf("Sampled at %f, %f, %f:\n", s[0], t[0], p[0]); + for (i = 0; i < 4; i++) { + printf("Frag %d: %f %f %f %f\n", i, + rgba[0][i], + rgba[1][i], + rgba[2][i], + rgba[3][i]); + } + } +#endif +} + diff --git a/src/gallium/drivers/softpipe/sp_tex_sample.h b/src/gallium/drivers/softpipe/sp_tex_sample.h new file mode 100644 index 00000000000..404bfd0c365 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_tex_sample.h @@ -0,0 +1,17 @@ +#ifndef SP_TEX_SAMPLE_H +#define SP_TEX_SAMPLE_H + + +struct tgsi_sampler; + + +extern void +sp_get_samples(struct tgsi_sampler *sampler, + const float s[QUAD_SIZE], + const float t[QUAD_SIZE], + const float p[QUAD_SIZE], + float lodbias, + float rgba[NUM_CHANNELS][QUAD_SIZE]); + + +#endif /* SP_TEX_SAMPLE_H */ diff --git a/src/gallium/drivers/softpipe/sp_texture.c b/src/gallium/drivers/softpipe/sp_texture.c new file mode 100644 index 00000000000..3a737d6f722 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_texture.c @@ -0,0 +1,356 @@ +/************************************************************************** + * + * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + /* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + * Michel Dänzer <michel@tungstengraphics.com> + */ + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_inlines.h" +#include "pipe/p_winsys.h" +#include "util/u_math.h" +#include "util/u_memory.h" + +#include "sp_context.h" +#include "sp_state.h" +#include "sp_texture.h" +#include "sp_tile_cache.h" +#include "sp_screen.h" + + +/* Simple, maximally packed layout. + */ + +static unsigned minify( unsigned d ) +{ + return MAX2(1, d>>1); +} + + +/* Conventional allocation path for non-display textures: + */ +static boolean +softpipe_texture_layout(struct pipe_screen *screen, + struct softpipe_texture * spt) +{ + struct pipe_winsys *ws = screen->winsys; + struct pipe_texture *pt = &spt->base; + unsigned level; + unsigned width = pt->width[0]; + unsigned height = pt->height[0]; + unsigned depth = pt->depth[0]; + + unsigned buffer_size = 0; + + for (level = 0; level <= pt->last_level; level++) { + pt->width[level] = width; + pt->height[level] = height; + pt->depth[level] = depth; + pt->nblocksx[level] = pf_get_nblocksx(&pt->block, width); + pt->nblocksy[level] = pf_get_nblocksy(&pt->block, height); + spt->stride[level] = pt->nblocksx[level]*pt->block.size; + + spt->level_offset[level] = buffer_size; + + buffer_size += (pt->nblocksy[level] * + ((pt->target == PIPE_TEXTURE_CUBE) ? 6 : depth) * + spt->stride[level]); + + width = minify(width); + height = minify(height); + depth = minify(depth); + } + + spt->buffer = ws->buffer_create(ws, 32, + PIPE_BUFFER_USAGE_PIXEL, + buffer_size); + + return spt->buffer != NULL; +} + + + +/* Hack it up to use the old winsys->surface_alloc_storage() + * method for now: + */ +static boolean +softpipe_displaytarget_layout(struct pipe_screen *screen, + struct softpipe_texture * spt) +{ + struct pipe_winsys *ws = screen->winsys; + struct pipe_surface surf; + unsigned flags = (PIPE_BUFFER_USAGE_CPU_READ | + PIPE_BUFFER_USAGE_CPU_WRITE | + PIPE_BUFFER_USAGE_GPU_READ | + PIPE_BUFFER_USAGE_GPU_WRITE); + + + memset(&surf, 0, sizeof(surf)); + + ws->surface_alloc_storage( ws, + &surf, + spt->base.width[0], + spt->base.height[0], + spt->base.format, + flags, + spt->base.tex_usage); + + /* Now extract the goodies: + */ + spt->base.nblocksx[0] = pf_get_nblocksx(&spt->base.block, spt->base.width[0]); + spt->base.nblocksy[0] = pf_get_nblocksy(&spt->base.block, spt->base.height[0]); + spt->stride[0] = surf.stride; + spt->buffer = surf.buffer; + + return spt->buffer != NULL; +} + + + + + +static struct pipe_texture * +softpipe_texture_create(struct pipe_screen *screen, + const struct pipe_texture *templat) +{ + struct softpipe_texture *spt = CALLOC_STRUCT(softpipe_texture); + if (!spt) + return NULL; + + spt->base = *templat; + spt->base.refcount = 1; + spt->base.screen = screen; + + if (spt->base.tex_usage & PIPE_TEXTURE_USAGE_DISPLAY_TARGET) { + if (!softpipe_displaytarget_layout(screen, spt)) + goto fail; + } + else { + if (!softpipe_texture_layout(screen, spt)) + goto fail; + } + + assert(spt->base.refcount == 1); + return &spt->base; + + fail: + FREE(spt); + return NULL; +} + + +static struct pipe_texture * +softpipe_texture_blanket(struct pipe_screen * screen, + const struct pipe_texture *base, + const unsigned *stride, + struct pipe_buffer *buffer) +{ + struct softpipe_texture *spt; + assert(screen); + + /* Only supports one type */ + if (base->target != PIPE_TEXTURE_2D || + base->last_level != 0 || + base->depth[0] != 1) { + return NULL; + } + + spt = CALLOC_STRUCT(softpipe_texture); + if (!spt) + return NULL; + + spt->base = *base; + spt->base.refcount = 1; + spt->base.screen = screen; + spt->base.nblocksx[0] = pf_get_nblocksx(&spt->base.block, spt->base.width[0]); + spt->base.nblocksy[0] = pf_get_nblocksy(&spt->base.block, spt->base.height[0]); + spt->stride[0] = stride[0]; + + pipe_buffer_reference(screen->winsys, &spt->buffer, buffer); + + return &spt->base; +} + + +static void +softpipe_texture_release(struct pipe_screen *screen, + struct pipe_texture **pt) +{ + if (!*pt) + return; + + if (--(*pt)->refcount <= 0) { + struct softpipe_texture *spt = softpipe_texture(*pt); + + pipe_buffer_reference(screen->winsys, &spt->buffer, NULL); + FREE(spt); + } + *pt = NULL; +} + + +static struct pipe_surface * +softpipe_get_tex_surface(struct pipe_screen *screen, + struct pipe_texture *pt, + unsigned face, unsigned level, unsigned zslice, + unsigned usage) +{ + struct pipe_winsys *ws = screen->winsys; + struct softpipe_texture *spt = softpipe_texture(pt); + struct pipe_surface *ps; + + assert(level <= pt->last_level); + + ps = ws->surface_alloc(ws); + if (ps) { + assert(ps->refcount); + assert(ps->winsys); + pipe_buffer_reference(ws, &ps->buffer, spt->buffer); + ps->format = pt->format; + ps->block = pt->block; + ps->width = pt->width[level]; + ps->height = pt->height[level]; + ps->nblocksx = pt->nblocksx[level]; + ps->nblocksy = pt->nblocksy[level]; + ps->stride = spt->stride[level]; + ps->offset = spt->level_offset[level]; + ps->usage = usage; + + /* Because we are softpipe, anything that the state tracker + * thought was going to be done with the GPU will actually get + * done with the CPU. Let's adjust the flags to take that into + * account. + */ + if (ps->usage & PIPE_BUFFER_USAGE_GPU_WRITE) { + /* GPU_WRITE means "render" and that can involve reads (blending) */ + ps->usage |= PIPE_BUFFER_USAGE_CPU_WRITE | PIPE_BUFFER_USAGE_CPU_READ; + } + + if (ps->usage & PIPE_BUFFER_USAGE_GPU_READ) + ps->usage |= PIPE_BUFFER_USAGE_CPU_READ; + + if (ps->usage & (PIPE_BUFFER_USAGE_CPU_WRITE | + PIPE_BUFFER_USAGE_GPU_WRITE)) { + /* Mark the surface as dirty. The tile cache will look for this. */ + spt->modified = TRUE; + } + + pipe_texture_reference(&ps->texture, pt); + ps->face = face; + ps->level = level; + ps->zslice = zslice; + + if (pt->target == PIPE_TEXTURE_CUBE || pt->target == PIPE_TEXTURE_3D) { + ps->offset += ((pt->target == PIPE_TEXTURE_CUBE) ? face : zslice) * + ps->nblocksy * + ps->stride; + } + else { + assert(face == 0); + assert(zslice == 0); + } + } + return ps; +} + + +static void +softpipe_tex_surface_release(struct pipe_screen *screen, + struct pipe_surface **s) +{ + /* Effectively do the texture_update work here - if texture images + * needed post-processing to put them into hardware layout, this is + * where it would happen. For softpipe, nothing to do. + */ + assert ((*s)->texture); + pipe_texture_reference(&(*s)->texture, NULL); + + screen->winsys->surface_release(screen->winsys, s); +} + + +static void * +softpipe_surface_map( struct pipe_screen *screen, + struct pipe_surface *surface, + unsigned flags ) +{ + ubyte *map; + + if (flags & ~surface->usage) { + assert(0); + return NULL; + } + + map = screen->winsys->buffer_map( screen->winsys, surface->buffer, flags ); + if (map == NULL) + return NULL; + + /* May want to different things here depending on read/write nature + * of the map: + */ + if (surface->texture && + (flags & PIPE_BUFFER_USAGE_CPU_WRITE)) + { + /* Do something to notify sharing contexts of a texture change. + * In softpipe, that would mean flushing the texture cache. + */ + softpipe_screen(screen)->timestamp++; + } + + return map + surface->offset; +} + + +static void +softpipe_surface_unmap(struct pipe_screen *screen, + struct pipe_surface *surface) +{ + screen->winsys->buffer_unmap( screen->winsys, surface->buffer ); +} + + +void +softpipe_init_texture_funcs(struct softpipe_context *sp) +{ +} + + +void +softpipe_init_screen_texture_funcs(struct pipe_screen *screen) +{ + screen->texture_create = softpipe_texture_create; + screen->texture_blanket = softpipe_texture_blanket; + screen->texture_release = softpipe_texture_release; + + screen->get_tex_surface = softpipe_get_tex_surface; + screen->tex_surface_release = softpipe_tex_surface_release; + + screen->surface_map = softpipe_surface_map; + screen->surface_unmap = softpipe_surface_unmap; +} diff --git a/src/gallium/drivers/softpipe/sp_texture.h b/src/gallium/drivers/softpipe/sp_texture.h new file mode 100644 index 00000000000..bf437a7c618 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_texture.h @@ -0,0 +1,70 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#ifndef SP_TEXTURE_H +#define SP_TEXTURE_H + + +#include "pipe/p_state.h" + + +struct pipe_context; +struct pipe_screen; +struct softpipe_context; + + +struct softpipe_texture +{ + struct pipe_texture base; + + unsigned long level_offset[PIPE_MAX_TEXTURE_LEVELS]; + unsigned long stride[PIPE_MAX_TEXTURE_LEVELS]; + + /* The data is held here: + */ + struct pipe_buffer *buffer; + + boolean modified; +}; + + +/** cast wrapper */ +static INLINE struct softpipe_texture * +softpipe_texture(struct pipe_texture *pt) +{ + return (struct softpipe_texture *) pt; +} + + +extern void +softpipe_init_texture_funcs( struct softpipe_context *softpipe ); + +extern void +softpipe_init_screen_texture_funcs(struct pipe_screen *screen); + + +#endif /* SP_TEXTURE */ diff --git a/src/gallium/drivers/softpipe/sp_tile_cache.c b/src/gallium/drivers/softpipe/sp_tile_cache.c new file mode 100644 index 00000000000..b50c9845133 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_tile_cache.c @@ -0,0 +1,614 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * Framebuffer/surface tile caching. + * + * Author: + * Brian Paul + */ + +#include "pipe/p_inlines.h" +#include "util/u_memory.h" +#include "util/u_tile.h" +#include "sp_context.h" +#include "sp_surface.h" +#include "sp_texture.h" +#include "sp_tile_cache.h" + +#define NUM_ENTRIES 32 + + +/** XXX move these */ +#define MAX_WIDTH 2048 +#define MAX_HEIGHT 2048 + + +struct softpipe_tile_cache +{ + struct pipe_screen *screen; + struct pipe_surface *surface; /**< the surface we're caching */ + void *surface_map; + struct pipe_texture *texture; /**< if caching a texture */ + struct softpipe_cached_tile entries[NUM_ENTRIES]; + uint clear_flags[(MAX_WIDTH / TILE_SIZE) * (MAX_HEIGHT / TILE_SIZE) / 32]; + float clear_color[4]; + uint clear_val; + boolean depth_stencil; /** Is the surface a depth/stencil format? */ + + struct pipe_surface *tex_surf; + void *tex_surf_map; + int tex_face, tex_level, tex_z; + + struct softpipe_cached_tile tile; /**< scratch tile for clears */ +}; + + +/** + * Return the position in the cache for the tile that contains win pos (x,y). + * We currently use a direct mapped cache so this is like a hack key. + * At some point we should investige something more sophisticated, like + * a LRU replacement policy. + */ +#define CACHE_POS(x, y) \ + (((x) / TILE_SIZE + ((y) / TILE_SIZE) * 5) % NUM_ENTRIES) + + + +/** + * Is the tile at (x,y) in cleared state? + */ +static INLINE uint +is_clear_flag_set(const uint *bitvec, int x, int y) +{ + int pos, bit; + x /= TILE_SIZE; + y /= TILE_SIZE; + pos = y * (MAX_WIDTH / TILE_SIZE) + x; + assert(pos / 32 < (MAX_WIDTH / TILE_SIZE) * (MAX_HEIGHT / TILE_SIZE) / 32); + bit = bitvec[pos / 32] & (1 << (pos & 31)); + return bit; +} + + +/** + * Mark the tile at (x,y) as not cleared. + */ +static INLINE void +clear_clear_flag(uint *bitvec, int x, int y) +{ + int pos; + x /= TILE_SIZE; + y /= TILE_SIZE; + pos = y * (MAX_WIDTH / TILE_SIZE) + x; + assert(pos / 32 < (MAX_WIDTH / TILE_SIZE) * (MAX_HEIGHT / TILE_SIZE) / 32); + bitvec[pos / 32] &= ~(1 << (pos & 31)); +} + + +struct softpipe_tile_cache * +sp_create_tile_cache( struct pipe_screen *screen ) +{ + struct softpipe_tile_cache *tc; + uint pos; + + tc = CALLOC_STRUCT( softpipe_tile_cache ); + if (tc) { + tc->screen = screen; + for (pos = 0; pos < NUM_ENTRIES; pos++) { + tc->entries[pos].x = + tc->entries[pos].y = -1; + } + } + return tc; +} + + +void +sp_destroy_tile_cache(struct softpipe_tile_cache *tc) +{ + uint pos; + + for (pos = 0; pos < NUM_ENTRIES; pos++) { + /*assert(tc->entries[pos].x < 0);*/ + } + if (tc->surface) { + pipe_surface_reference(&tc->surface, NULL); + } + if (tc->tex_surf) { + pipe_surface_reference(&tc->tex_surf, NULL); + } + + FREE( tc ); +} + + +/** + * Specify the surface to cache. + */ +void +sp_tile_cache_set_surface(struct softpipe_tile_cache *tc, + struct pipe_surface *ps) +{ + assert(!tc->texture); + + if (tc->surface_map) { + tc->screen->surface_unmap(tc->screen, tc->surface); + tc->surface_map = NULL; + } + + pipe_surface_reference(&tc->surface, ps); + + if (tc->surface) { + if (tc->surface_map) /* XXX: this is always NULL!? */ + tc->surface_map = tc->screen->surface_map(tc->screen, tc->surface, + PIPE_BUFFER_USAGE_CPU_READ | + PIPE_BUFFER_USAGE_CPU_WRITE); + + tc->depth_stencil = (ps->format == PIPE_FORMAT_S8Z24_UNORM || + ps->format == PIPE_FORMAT_X8Z24_UNORM || + ps->format == PIPE_FORMAT_Z24S8_UNORM || + ps->format == PIPE_FORMAT_Z24X8_UNORM || + ps->format == PIPE_FORMAT_Z16_UNORM || + ps->format == PIPE_FORMAT_Z32_UNORM || + ps->format == PIPE_FORMAT_S8_UNORM); + } +} + + +/** + * Return the surface being cached. + */ +struct pipe_surface * +sp_tile_cache_get_surface(struct softpipe_tile_cache *tc) +{ + return tc->surface; +} + + +void +sp_tile_cache_map_surfaces(struct softpipe_tile_cache *tc) +{ + if (tc->surface && !tc->surface_map) + tc->surface_map = tc->screen->surface_map(tc->screen, tc->surface, + PIPE_BUFFER_USAGE_CPU_WRITE | + PIPE_BUFFER_USAGE_CPU_READ); + + if (tc->tex_surf && !tc->tex_surf_map) + tc->tex_surf_map = tc->screen->surface_map(tc->screen, tc->tex_surf, + PIPE_BUFFER_USAGE_CPU_READ); +} + + +void +sp_tile_cache_unmap_surfaces(struct softpipe_tile_cache *tc) +{ + if (tc->surface_map) { + tc->screen->surface_unmap(tc->screen, tc->surface); + tc->surface_map = NULL; + } + + if (tc->tex_surf_map) { + tc->screen->surface_unmap(tc->screen, tc->tex_surf); + tc->tex_surf_map = NULL; + } +} + + +/** + * Specify the texture to cache. + */ +void +sp_tile_cache_set_texture(struct pipe_context *pipe, + struct softpipe_tile_cache *tc, + struct pipe_texture *texture) +{ + uint i; + + assert(!tc->surface); + + pipe_texture_reference(&tc->texture, texture); + + if (tc->tex_surf_map) { + tc->screen->surface_unmap(tc->screen, tc->tex_surf); + tc->tex_surf_map = NULL; + } + pipe_surface_reference(&tc->tex_surf, NULL); + + /* mark as entries as invalid/empty */ + /* XXX we should try to avoid this when the teximage hasn't changed */ + for (i = 0; i < NUM_ENTRIES; i++) { + tc->entries[i].x = -1; + } + + tc->tex_face = -1; /* any invalid value here */ +} + + +/** + * Set pixels in a tile to the given clear color/value, float. + */ +static void +clear_tile_rgba(struct softpipe_cached_tile *tile, + enum pipe_format format, + const float clear_value[4]) +{ + if (clear_value[0] == 0.0 && + clear_value[1] == 0.0 && + clear_value[2] == 0.0 && + clear_value[3] == 0.0) { + memset(tile->data.color, 0, sizeof(tile->data.color)); + } + else { + uint i, j; + for (i = 0; i < TILE_SIZE; i++) { + for (j = 0; j < TILE_SIZE; j++) { + tile->data.color[i][j][0] = clear_value[0]; + tile->data.color[i][j][1] = clear_value[1]; + tile->data.color[i][j][2] = clear_value[2]; + tile->data.color[i][j][3] = clear_value[3]; + } + } + } +} + + +/** + * Set a tile to a solid value/color. + */ +static void +clear_tile(struct softpipe_cached_tile *tile, + enum pipe_format format, + uint clear_value) +{ + uint i, j; + + switch (pf_get_size(format)) { + case 1: + memset(tile->data.any, 0, TILE_SIZE * TILE_SIZE); + break; + case 2: + if (clear_value == 0) { + memset(tile->data.any, 0, 2 * TILE_SIZE * TILE_SIZE); + } + else { + for (i = 0; i < TILE_SIZE; i++) { + for (j = 0; j < TILE_SIZE; j++) { + tile->data.depth16[i][j] = (ushort) clear_value; + } + } + } + break; + case 4: + if (clear_value == 0) { + memset(tile->data.any, 0, 4 * TILE_SIZE * TILE_SIZE); + } + else { + for (i = 0; i < TILE_SIZE; i++) { + for (j = 0; j < TILE_SIZE; j++) { + tile->data.color32[i][j] = clear_value; + } + } + } + break; + default: + assert(0); + } +} + + +/** + * Actually clear the tiles which were flagged as being in a clear state. + */ +static void +sp_tile_cache_flush_clear(struct pipe_context *pipe, + struct softpipe_tile_cache *tc) +{ + struct pipe_surface *ps = tc->surface; + const uint w = tc->surface->width; + const uint h = tc->surface->height; + uint x, y; + uint numCleared = 0; + + /* clear the scratch tile to the clear value */ + clear_tile(&tc->tile, ps->format, tc->clear_val); + + /* push the tile to all positions marked as clear */ + for (y = 0; y < h; y += TILE_SIZE) { + for (x = 0; x < w; x += TILE_SIZE) { + if (is_clear_flag_set(tc->clear_flags, x, y)) { + pipe_put_tile_raw(ps, + x, y, TILE_SIZE, TILE_SIZE, + tc->tile.data.color32, 0/*STRIDE*/); + + /* do this? */ + clear_clear_flag(tc->clear_flags, x, y); + + numCleared++; + } + } + } +#if 0 + debug_printf("num cleared: %u\n", numCleared); +#endif +} + + +/** + * Flush the tile cache: write all dirty tiles back to the surface. + * any tiles "flagged" as cleared will be "really" cleared. + */ +void +sp_flush_tile_cache(struct softpipe_context *softpipe, + struct softpipe_tile_cache *tc) +{ + struct pipe_surface *ps = tc->surface; + int inuse = 0, pos; + + if (ps && ps->buffer) { + /* caching a drawing surface */ + for (pos = 0; pos < NUM_ENTRIES; pos++) { + struct softpipe_cached_tile *tile = tc->entries + pos; + if (tile->x >= 0) { + if (tc->depth_stencil) { + pipe_put_tile_raw(ps, + tile->x, tile->y, TILE_SIZE, TILE_SIZE, + tile->data.depth32, 0/*STRIDE*/); + } + else { + pipe_put_tile_rgba(ps, + tile->x, tile->y, TILE_SIZE, TILE_SIZE, + (float *) tile->data.color); + } + tile->x = tile->y = -1; /* mark as empty */ + inuse++; + } + } + +#if TILE_CLEAR_OPTIMIZATION + sp_tile_cache_flush_clear(&softpipe->pipe, tc); +#endif + } + else if (tc->texture) { + /* caching a texture, mark all entries as empty */ + for (pos = 0; pos < NUM_ENTRIES; pos++) { + tc->entries[pos].x = -1; + } + tc->tex_face = -1; + } + +#if 0 + debug_printf("flushed tiles in use: %d\n", inuse); +#endif +} + + +/** + * Get a tile from the cache. + * \param x, y position of tile, in pixels + */ +struct softpipe_cached_tile * +sp_get_cached_tile(struct softpipe_context *softpipe, + struct softpipe_tile_cache *tc, int x, int y) +{ + struct pipe_surface *ps = tc->surface; + + /* tile pos in framebuffer: */ + const int tile_x = x & ~(TILE_SIZE - 1); + const int tile_y = y & ~(TILE_SIZE - 1); + + /* cache pos/entry: */ + const int pos = CACHE_POS(x, y); + struct softpipe_cached_tile *tile = tc->entries + pos; + + if (tile_x != tile->x || + tile_y != tile->y) { + + if (tile->x != -1) { + /* put dirty tile back in framebuffer */ + if (tc->depth_stencil) { + pipe_put_tile_raw(ps, + tile->x, tile->y, TILE_SIZE, TILE_SIZE, + tile->data.depth32, 0/*STRIDE*/); + } + else { + pipe_put_tile_rgba(ps, + tile->x, tile->y, TILE_SIZE, TILE_SIZE, + (float *) tile->data.color); + } + } + + tile->x = tile_x; + tile->y = tile_y; + + if (is_clear_flag_set(tc->clear_flags, x, y)) { + /* don't get tile from framebuffer, just clear it */ + if (tc->depth_stencil) { + clear_tile(tile, ps->format, tc->clear_val); + } + else { + clear_tile_rgba(tile, ps->format, tc->clear_color); + } + clear_clear_flag(tc->clear_flags, x, y); + } + else { + /* get new tile data from surface */ + if (tc->depth_stencil) { + pipe_get_tile_raw(ps, + tile->x, tile->y, TILE_SIZE, TILE_SIZE, + tile->data.depth32, 0/*STRIDE*/); + } + else { + pipe_get_tile_rgba(ps, + tile->x, tile->y, TILE_SIZE, TILE_SIZE, + (float *) tile->data.color); + } + } + } + + return tile; +} + + +/** + * Given the texture face, level, zslice, x and y values, compute + * the cache entry position/index where we'd hope to find the + * cached texture tile. + * This is basically a direct-map cache. + * XXX There's probably lots of ways in which we can improve this. + */ +static INLINE uint +tex_cache_pos(int x, int y, int z, int face, int level) +{ + uint entry = x + y * 5 + z * 4 + face + level; + return entry % NUM_ENTRIES; +} + + +/** + * Similar to sp_get_cached_tile() but for textures. + * Tiles are read-only and indexed with more params. + */ +const struct softpipe_cached_tile * +sp_get_cached_tile_tex(struct pipe_context *pipe, + struct softpipe_tile_cache *tc, int x, int y, int z, + int face, int level) +{ + struct pipe_screen *screen = pipe->screen; + /* tile pos in framebuffer: */ + const int tile_x = x & ~(TILE_SIZE - 1); + const int tile_y = y & ~(TILE_SIZE - 1); + /* cache pos/entry: */ + const uint pos = tex_cache_pos(x / TILE_SIZE, y / TILE_SIZE, z, + face, level); + struct softpipe_cached_tile *tile = tc->entries + pos; + + if (tc->texture) { + struct softpipe_texture *spt = softpipe_texture(tc->texture); + if (spt->modified) { + /* texture was modified, force a cache reload */ + tile->x = -1; + spt->modified = FALSE; + } + } + + if (tile_x != tile->x || + tile_y != tile->y || + z != tile->z || + face != tile->face || + level != tile->level) { + /* cache miss */ + + /* check if we need to get a new surface */ + if (!tc->tex_surf || + tc->tex_face != face || + tc->tex_level != level || + tc->tex_z != z) { + /* get new surface (view into texture) */ + + if (tc->tex_surf_map) + tc->screen->surface_unmap(tc->screen, tc->tex_surf); + + tc->tex_surf = screen->get_tex_surface(screen, tc->texture, face, level, z, + PIPE_BUFFER_USAGE_CPU_READ); + tc->tex_surf_map = screen->surface_map(screen, tc->tex_surf, + PIPE_BUFFER_USAGE_CPU_READ); + + tc->tex_face = face; + tc->tex_level = level; + tc->tex_z = z; + } + + /* get tile from the surface (view into texture) */ + pipe_get_tile_rgba(tc->tex_surf, + tile_x, tile_y, TILE_SIZE, TILE_SIZE, + (float *) tile->data.color); + tile->x = tile_x; + tile->y = tile_y; + tile->z = z; + tile->face = face; + tile->level = level; + } + + return tile; +} + + +/** + * When a whole surface is being cleared to a value we can avoid + * fetching tiles above. + * Save the color and set a 'clearflag' for each tile of the screen. + */ +void +sp_tile_cache_clear(struct softpipe_tile_cache *tc, uint clearValue) +{ + uint r, g, b, a; + uint pos; + + tc->clear_val = clearValue; + + switch (tc->surface->format) { + case PIPE_FORMAT_R8G8B8A8_UNORM: + r = (clearValue >> 24) & 0xff; + g = (clearValue >> 16) & 0xff; + b = (clearValue >> 8) & 0xff; + a = (clearValue ) & 0xff; + break; + case PIPE_FORMAT_A8R8G8B8_UNORM: + r = (clearValue >> 16) & 0xff; + g = (clearValue >> 8) & 0xff; + b = (clearValue ) & 0xff; + a = (clearValue >> 24) & 0xff; + break; + case PIPE_FORMAT_B8G8R8A8_UNORM: + r = (clearValue >> 8) & 0xff; + g = (clearValue >> 16) & 0xff; + b = (clearValue >> 24) & 0xff; + a = (clearValue ) & 0xff; + break; + default: + r = g = b = a = 0; + } + + tc->clear_color[0] = r / 255.0f; + tc->clear_color[1] = g / 255.0f; + tc->clear_color[2] = b / 255.0f; + tc->clear_color[3] = a / 255.0f; + +#if TILE_CLEAR_OPTIMIZATION + /* set flags to indicate all the tiles are cleared */ + memset(tc->clear_flags, 255, sizeof(tc->clear_flags)); +#else + /* disable the optimization */ + memset(tc->clear_flags, 0, sizeof(tc->clear_flags)); +#endif + + for (pos = 0; pos < NUM_ENTRIES; pos++) { + struct softpipe_cached_tile *tile = tc->entries + pos; + tile->x = tile->y = -1; + } +} diff --git a/src/gallium/drivers/softpipe/sp_tile_cache.h b/src/gallium/drivers/softpipe/sp_tile_cache.h new file mode 100644 index 00000000000..bc96c941f61 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_tile_cache.h @@ -0,0 +1,105 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#ifndef SP_TILE_CACHE_H +#define SP_TILE_CACHE_H + +#define TILE_CLEAR_OPTIMIZATION 1 + + +#include "pipe/p_compiler.h" + + +struct softpipe_context; +struct softpipe_tile_cache; + + +/** + * Cache tile size (width and height). This needs to be a power of two. + */ +#define TILE_SIZE 64 + + + +struct softpipe_cached_tile +{ + int x, y; /**< pos of tile in window coords */ + int z, face, level; /**< Extra texture indexes */ + union { + float color[TILE_SIZE][TILE_SIZE][4]; + uint color32[TILE_SIZE][TILE_SIZE]; + uint depth32[TILE_SIZE][TILE_SIZE]; + ushort depth16[TILE_SIZE][TILE_SIZE]; + ubyte stencil8[TILE_SIZE][TILE_SIZE]; + ubyte any[1]; + } data; +}; + + +extern struct softpipe_tile_cache * +sp_create_tile_cache( struct pipe_screen *screen ); + +extern void +sp_destroy_tile_cache(struct softpipe_tile_cache *tc); + +extern void +sp_tile_cache_set_surface(struct softpipe_tile_cache *tc, + struct pipe_surface *sps); + +extern struct pipe_surface * +sp_tile_cache_get_surface(struct softpipe_tile_cache *tc); + +extern void +sp_tile_cache_map_surfaces(struct softpipe_tile_cache *tc); + +extern void +sp_tile_cache_unmap_surfaces(struct softpipe_tile_cache *tc); + +extern void +sp_tile_cache_set_texture(struct pipe_context *pipe, + struct softpipe_tile_cache *tc, + struct pipe_texture *texture); + +extern void +sp_flush_tile_cache(struct softpipe_context *softpipe, + struct softpipe_tile_cache *tc); + +extern void +sp_tile_cache_clear(struct softpipe_tile_cache *tc, uint clearValue); + +extern struct softpipe_cached_tile * +sp_get_cached_tile(struct softpipe_context *softpipe, + struct softpipe_tile_cache *tc, int x, int y); + +extern const struct softpipe_cached_tile * +sp_get_cached_tile_tex(struct pipe_context *pipe, + struct softpipe_tile_cache *tc, int x, int y, int z, + int face, int level); + + +#endif /* SP_TILE_CACHE_H */ + diff --git a/src/gallium/drivers/softpipe/sp_winsys.h b/src/gallium/drivers/softpipe/sp_winsys.h new file mode 100644 index 00000000000..4ab666486c4 --- /dev/null +++ b/src/gallium/drivers/softpipe/sp_winsys.h @@ -0,0 +1,73 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/* This is the interface that softpipe requires any window system + * hosting it to implement. This is the only include file in softpipe + * which is public. + */ + + +#ifndef SP_WINSYS_H +#define SP_WINSYS_H + + +#include "pipe/p_compiler.h" /* for boolean */ + + +#ifdef __cplusplus +extern "C" { +#endif + + +enum pipe_format; + +struct softpipe_winsys { + /** test if the given format is supported for front/back color bufs */ + boolean (*is_format_supported)( struct softpipe_winsys *sws, + enum pipe_format format ); + +}; + +struct pipe_screen; +struct pipe_winsys; +struct pipe_context; + + +struct pipe_context *softpipe_create( struct pipe_screen *, + struct pipe_winsys *, + void *unused ); + + +struct pipe_screen * +softpipe_create_screen(struct pipe_winsys *); + + +#ifdef __cplusplus +} +#endif + +#endif /* SP_WINSYS_H */ |