diff options
author | Keith Whitwell <keith@tungstengraphics.com> | 2008-09-11 16:05:15 +0100 |
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committer | Keith Whitwell <keith@tungstengraphics.com> | 2008-09-11 16:05:15 +0100 |
commit | 0397b2bb41b0f337af2949a15bcd7d0e7e8a7dc1 (patch) | |
tree | 732c93d74ed806942a13bf15575a61aa4f001253 /src/gallium/auxiliary/draw/draw_pipe_wide_point.c | |
parent | 80af50b35b5a4e8890e15b28940576f8a1ac1476 (diff) | |
parent | e6887a5752774c18cf527477fdd3e57e4893ff3b (diff) |
Merge branch 'gallium-0.1' into gallium-0.2
A first attempt at moving gallium onto a branch directly off master...
It will be interesting to see how much work this takes to get running.
Have resolved the conflicts semi-arbitarily, not compiled or tested.
Conflicts:
.gitignore
Makefile
configs/config.mgw
configs/darwin
configs/darwin-x86ppc
configs/default
configs/freebsd-dri
configs/linux-dri
configs/linux-dri-xcb
configs/linux-fbdev
configs/linux-static
configs/linux-x86-64-static
configs/linux-x86-static
doxygen/Makefile
include/GL/gl.h
progs/demos/Makefile
progs/demos/descrip.mms
progs/demos/texenv.c
progs/egl/.gitignore
progs/egl/Makefile
progs/glsl/.gitignore
progs/glsl/Makefile
progs/glsl/convolutions.c
progs/samples/Makefile.mgw
progs/tests/.gitignore
progs/trivial/.gitignore
progs/trivial/point-param.c
progs/trivial/tri.c
progs/xdemos/.gitignore
progs/xdemos/glthreads.c
src/egl/drivers/demo/Makefile
src/egl/drivers/dri/Makefile
src/egl/main/Makefile
src/glu/Makefile
src/glu/sgi/Makefile
src/glu/sgi/Makefile.mgw
src/glut/glx/Makefile.mgw
src/glut/os2/WarpWin.cpp
src/glut/os2/glut_cindex.cpp
src/glut/os2/glut_gamemode.cpp
src/glut/os2/glut_win.cpp
src/glut/os2/glut_winmisc.cpp
src/glut/os2/os2_glx.cpp
src/glut/os2/os2_menu.cpp
src/glut/os2/os2_winproc.cpp
src/glw/Makefile
src/glx/x11/dri_glx.c
src/glx/x11/glxext.c
src/mesa/Makefile
src/mesa/Makefile.mgw
src/mesa/descrip.mms
src/mesa/drivers/beos/Makefile
src/mesa/drivers/common/descrip.mms
src/mesa/drivers/common/driverfuncs.c
src/mesa/drivers/directfb/Makefile
src/mesa/drivers/dri/Makefile.template
src/mesa/drivers/dri/common/dri_bufmgr.c
src/mesa/drivers/dri/common/dri_bufmgr.h
src/mesa/drivers/dri/common/dri_util.c
src/mesa/drivers/dri/common/extension_helper.h
src/mesa/drivers/dri/common/mmio.h
src/mesa/drivers/dri/common/utils.c
src/mesa/drivers/dri/common/utils.h
src/mesa/drivers/dri/glcore/Makefile
src/mesa/drivers/dri/i810/i810screen.c
src/mesa/drivers/dri/i915/intel_ioctl.c
src/mesa/drivers/dri/i915/intel_ioctl.h
src/mesa/drivers/dri/i915/intel_screen.c
src/mesa/drivers/dri/i915/server/i830_common.h
src/mesa/drivers/dri/i915/server/i830_dri.h
src/mesa/drivers/dri/i965/intel_screen.c
src/mesa/drivers/dri/i965/server/i830_common.h
src/mesa/drivers/dri/i965/server/i830_dri.h
src/mesa/drivers/dri/mach64/mach64_screen.c
src/mesa/drivers/dri/nouveau/nouveau_context.h
src/mesa/drivers/dri/nouveau/nouveau_fifo.c
src/mesa/drivers/dri/nouveau/nouveau_fifo.h
src/mesa/drivers/dri/nouveau/nouveau_screen.c
src/mesa/drivers/dri/nouveau/nouveau_screen.h
src/mesa/drivers/dri/r128/r128_tex.h
src/mesa/drivers/dri/savage/savageioctl.h
src/mesa/drivers/fbdev/Makefile
src/mesa/drivers/osmesa/Makefile
src/mesa/drivers/osmesa/descrip.mms
src/mesa/drivers/x11/Makefile
src/mesa/drivers/x11/descrip.mms
src/mesa/drivers/x11/xm_dd.c
src/mesa/glapi/glapi.c
src/mesa/glapi/glthread.c
src/mesa/main/api_validate.c
src/mesa/main/attrib.c
src/mesa/main/bufferobj.c
src/mesa/main/bufferobj.h
src/mesa/main/buffers.c
src/mesa/main/config.h
src/mesa/main/context.c
src/mesa/main/descrip.mms
src/mesa/main/drawpix.c
src/mesa/main/enums.c
src/mesa/main/fbobject.c
src/mesa/main/glheader.h
src/mesa/main/imports.c
src/mesa/main/mipmap.c
src/mesa/main/mm.c
src/mesa/main/mm.h
src/mesa/main/mtypes.h
src/mesa/main/points.c
src/mesa/main/sources
src/mesa/main/state.c
src/mesa/main/texcompress_fxt1.c
src/mesa/main/texenvprogram.c
src/mesa/main/texobj.c
src/mesa/main/texstate.c
src/mesa/main/texstore.c
src/mesa/math/descrip.mms
src/mesa/shader/arbprogram.c
src/mesa/shader/descrip.mms
src/mesa/shader/prog_execute.c
src/mesa/shader/prog_statevars.c
src/mesa/shader/prog_statevars.h
src/mesa/shader/prog_uniform.c
src/mesa/shader/program.c
src/mesa/shader/program.h
src/mesa/shader/shader_api.c
src/mesa/shader/slang/descrip.mms
src/mesa/shader/slang/library/slang_vertex_builtin_gc.h
src/mesa/sources
src/mesa/swrast/descrip.mms
src/mesa/swrast/s_drawpix.c
src/mesa/swrast/s_fragprog.c
src/mesa/swrast/s_readpix.c
src/mesa/swrast/s_span.c
src/mesa/swrast_setup/descrip.mms
src/mesa/tnl/descrip.mms
src/mesa/tnl/t_context.h
src/mesa/tnl/t_vp_build.c
src/mesa/tnl/tnl.h
src/mesa/vbo/descrip.mms
src/mesa/vbo/vbo_context.c
src/mesa/vbo/vbo_exec_array.c
src/mesa/x86-64/xform4.S
src/mesa/x86/rtasm/x86sse.c
src/mesa/x86/rtasm/x86sse.h
windows/VC6/progs/glut/glut.dsp
windows/VC7/mesa/gdi/gdi.vcproj
windows/VC7/mesa/glu/glu.vcproj
windows/VC7/mesa/mesa.sln
windows/VC7/mesa/mesa/mesa.vcproj
windows/VC7/mesa/osmesa/osmesa.vcproj
windows/VC7/progs/glut/glut.vcproj
windows/VC8/mesa/gdi/gdi.vcproj
windows/VC8/mesa/glu/glu.vcproj
windows/VC8/mesa/mesa.sln
windows/VC8/mesa/mesa/mesa.vcproj
windows/VC8/progs/glut/glut.vcproj
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_pipe_wide_point.c')
-rw-r--r-- | src/gallium/auxiliary/draw/draw_pipe_wide_point.c | 297 |
1 files changed, 297 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pipe_wide_point.c b/src/gallium/auxiliary/draw/draw_pipe_wide_point.c new file mode 100644 index 00000000000..4f1326053df --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe_wide_point.c @@ -0,0 +1,297 @@ +/************************************************************************** + * + * 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_math.h" +#include "util/u_memory.h" +#include "pipe/p_defines.h" +#include "pipe/p_shader_tokens.h" +#include "draw_vs.h" +#include "draw_pipe.h" + + +struct widepoint_stage { + struct draw_stage stage; + + float half_point_size; + float point_size_min; + float point_size_max; + + float xbias; + float ybias; + + uint texcoord_slot[PIPE_MAX_SHADER_OUTPUTS]; + uint texcoord_mode[PIPE_MAX_SHADER_OUTPUTS]; + uint num_texcoords; + + int psize_slot; + + int point_coord_fs_input; /**< input for pointcoord (and fog) */ +}; + + + +static INLINE struct widepoint_stage * +widepoint_stage( struct draw_stage *stage ) +{ + return (struct widepoint_stage *)stage; +} + + + + +/** + * Set the vertex texcoords for sprite mode. + * Coords may be left untouched or set to a right-side-up or upside-down + * orientation. + */ +static void set_texcoords(const struct widepoint_stage *wide, + struct vertex_header *v, const float tc[4]) +{ + uint i; + for (i = 0; i < wide->num_texcoords; i++) { + if (wide->texcoord_mode[i] != PIPE_SPRITE_COORD_NONE) { + uint j = wide->texcoord_slot[i]; + v->data[j][0] = tc[0]; + if (wide->texcoord_mode[i] == PIPE_SPRITE_COORD_LOWER_LEFT) + v->data[j][1] = 1.0f - tc[1]; + else + v->data[j][1] = tc[1]; + v->data[j][2] = tc[2]; + v->data[j][3] = tc[3]; + } + } + + if (wide->point_coord_fs_input >= 0) { + /* put gl_PointCoord into extra vertex output's zw components */ + uint k = wide->stage.draw->extra_vp_outputs.slot; + v->data[k][2] = tc[0]; + v->data[k][3] = tc[1]; + } +} + + +/* If there are lots of sprite points (and why wouldn't there be?) it + * would probably be more sensible to change hardware setup to + * optimize this rather than doing the whole thing in software like + * this. + */ +static void widepoint_point( struct draw_stage *stage, + struct prim_header *header ) +{ + const struct widepoint_stage *wide = widepoint_stage(stage); + const unsigned pos = stage->draw->vs.position_output; + const boolean sprite = (boolean) stage->draw->rasterizer->point_sprite; + float half_size; + float left_adj, right_adj, bot_adj, top_adj; + + struct prim_header tri; + + /* four dups of original vertex */ + struct vertex_header *v0 = dup_vert(stage, header->v[0], 0); + struct vertex_header *v1 = dup_vert(stage, header->v[0], 1); + struct vertex_header *v2 = dup_vert(stage, header->v[0], 2); + struct vertex_header *v3 = dup_vert(stage, header->v[0], 3); + + float *pos0 = v0->data[pos]; + float *pos1 = v1->data[pos]; + float *pos2 = v2->data[pos]; + float *pos3 = v3->data[pos]; + + /* point size is either per-vertex or fixed size */ + if (wide->psize_slot >= 0) { + half_size = header->v[0]->data[wide->psize_slot][0]; + + /* XXX: temporary -- do this in the vertex shader?? + */ + half_size = CLAMP(half_size, + wide->point_size_min, + wide->point_size_max); + + half_size *= 0.5f; + } + else { + half_size = wide->half_point_size; + } + + left_adj = -half_size + wide->xbias; + right_adj = half_size + wide->xbias; + bot_adj = half_size + wide->ybias; + top_adj = -half_size + wide->ybias; + + pos0[0] += left_adj; + pos0[1] += top_adj; + + pos1[0] += left_adj; + pos1[1] += bot_adj; + + pos2[0] += right_adj; + pos2[1] += top_adj; + + pos3[0] += right_adj; + pos3[1] += bot_adj; + + if (sprite) { + static const float tex00[4] = { 0, 0, 0, 1 }; + static const float tex01[4] = { 0, 1, 0, 1 }; + static const float tex11[4] = { 1, 1, 0, 1 }; + static const float tex10[4] = { 1, 0, 0, 1 }; + set_texcoords( wide, v0, tex00 ); + set_texcoords( wide, v1, tex01 ); + set_texcoords( wide, v2, tex10 ); + set_texcoords( wide, v3, tex11 ); + } + + tri.det = header->det; /* only the sign matters */ + tri.v[0] = v0; + tri.v[1] = v2; + tri.v[2] = v3; + stage->next->tri( stage->next, &tri ); + + tri.v[0] = v0; + tri.v[1] = v3; + tri.v[2] = v1; + stage->next->tri( stage->next, &tri ); +} + + +static void widepoint_first_point( struct draw_stage *stage, + struct prim_header *header ) +{ + struct widepoint_stage *wide = widepoint_stage(stage); + struct draw_context *draw = stage->draw; + + wide->half_point_size = 0.5f * draw->rasterizer->point_size; + wide->point_size_min = draw->rasterizer->point_size_min; + wide->point_size_max = draw->rasterizer->point_size_max; + wide->xbias = 0.0; + wide->ybias = 0.0; + + if (draw->rasterizer->gl_rasterization_rules) { + wide->xbias = 0.125; + } + + /* XXX we won't know the real size if it's computed by the vertex shader! */ + if ((draw->rasterizer->point_size > draw->pipeline.wide_point_threshold) || + (draw->rasterizer->point_sprite && draw->pipeline.point_sprite)) { + stage->point = widepoint_point; + } + else { + stage->point = draw_pipe_passthrough_point; + } + + if (draw->rasterizer->point_sprite) { + /* find vertex shader texcoord outputs */ + const struct draw_vertex_shader *vs = draw->vs.vertex_shader; + uint i, j = 0; + for (i = 0; i < vs->info.num_outputs; i++) { + if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_GENERIC) { + wide->texcoord_slot[j] = i; + wide->texcoord_mode[j] = draw->rasterizer->sprite_coord_mode[j]; + j++; + } + } + wide->num_texcoords = j; + + /* find fragment shader PointCoord/Fog input */ + wide->point_coord_fs_input = 0; /* XXX fix this! */ + + /* setup extra vp output */ + draw->extra_vp_outputs.semantic_name = TGSI_SEMANTIC_FOG; + draw->extra_vp_outputs.semantic_index = 0; + draw->extra_vp_outputs.slot = draw->vs.num_vs_outputs; + } + else { + wide->point_coord_fs_input = -1; + draw->extra_vp_outputs.slot = 0; + } + + wide->psize_slot = -1; + if (draw->rasterizer->point_size_per_vertex) { + /* find PSIZ vertex output */ + const struct draw_vertex_shader *vs = draw->vs.vertex_shader; + uint i; + for (i = 0; i < vs->info.num_outputs; i++) { + if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_PSIZE) { + wide->psize_slot = i; + break; + } + } + } + + stage->point( stage, header ); +} + + +static void widepoint_flush( struct draw_stage *stage, unsigned flags ) +{ + stage->point = widepoint_first_point; + stage->next->flush( stage->next, flags ); +} + + +static void widepoint_reset_stipple_counter( struct draw_stage *stage ) +{ + stage->next->reset_stipple_counter( stage->next ); +} + + +static void widepoint_destroy( struct draw_stage *stage ) +{ + draw_free_temp_verts( stage ); + FREE( stage ); +} + + +struct draw_stage *draw_wide_point_stage( struct draw_context *draw ) +{ + struct widepoint_stage *wide = CALLOC_STRUCT(widepoint_stage); + if (wide == NULL) + goto fail; + + if (!draw_alloc_temp_verts( &wide->stage, 4 )) + goto fail; + + wide->stage.draw = draw; + wide->stage.next = NULL; + wide->stage.point = widepoint_first_point; + wide->stage.line = draw_pipe_passthrough_line; + wide->stage.tri = draw_pipe_passthrough_tri; + wide->stage.flush = widepoint_flush; + wide->stage.reset_stipple_counter = widepoint_reset_stipple_counter; + wide->stage.destroy = widepoint_destroy; + + return &wide->stage; + + fail: + if (wide) + wide->stage.destroy( &wide->stage ); + + return NULL; +} |