diff options
Diffstat (limited to 'src/gallium/auxiliary/vl/vl_compositor.c')
-rw-r--r-- | src/gallium/auxiliary/vl/vl_compositor.c | 734 |
1 files changed, 734 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/vl/vl_compositor.c b/src/gallium/auxiliary/vl/vl_compositor.c new file mode 100644 index 00000000000..78b8d0627ce --- /dev/null +++ b/src/gallium/auxiliary/vl/vl_compositor.c @@ -0,0 +1,734 @@ +/************************************************************************** + * + * Copyright 2009 Younes Manton. + * 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 <assert.h> + +#include <pipe/p_context.h> + +#include <util/u_memory.h> +#include <util/u_draw.h> +#include <util/u_surface.h> + +#include <tgsi/tgsi_ureg.h> + +#include "vl_csc.h" +#include "vl_types.h" +#include "vl_compositor.h" + +typedef float csc_matrix[16]; + +static void * +create_vert_shader(struct vl_compositor *c) +{ + struct ureg_program *shader; + struct ureg_src vpos, vtex; + struct ureg_dst o_vpos, o_vtex; + + shader = ureg_create(TGSI_PROCESSOR_VERTEX); + if (!shader) + return false; + + vpos = ureg_DECL_vs_input(shader, 0); + vtex = ureg_DECL_vs_input(shader, 1); + o_vpos = ureg_DECL_output(shader, TGSI_SEMANTIC_POSITION, 0); + o_vtex = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, 1); + + /* + * o_vpos = vpos + * o_vtex = vtex + */ + ureg_MOV(shader, o_vpos, vpos); + ureg_MOV(shader, o_vtex, vtex); + + ureg_END(shader); + + return ureg_create_shader_and_destroy(shader, c->pipe); +} + +static void * +create_frag_shader_video_buffer(struct vl_compositor *c) +{ + struct ureg_program *shader; + struct ureg_src tc; + struct ureg_src csc[3]; + struct ureg_src sampler[3]; + struct ureg_dst texel; + struct ureg_dst fragment; + unsigned i; + + shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); + if (!shader) + return false; + + tc = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, 1, TGSI_INTERPOLATE_LINEAR); + for (i = 0; i < 3; ++i) { + csc[i] = ureg_DECL_constant(shader, i); + sampler[i] = ureg_DECL_sampler(shader, i); + } + texel = ureg_DECL_temporary(shader); + fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0); + + /* + * texel.xyz = tex(tc, sampler[i]) + * fragment = csc * texel + */ + for (i = 0; i < 3; ++i) + ureg_TEX(shader, ureg_writemask(texel, TGSI_WRITEMASK_X << i), TGSI_TEXTURE_2D, tc, sampler[i]); + + ureg_MOV(shader, ureg_writemask(texel, TGSI_WRITEMASK_W), ureg_imm1f(shader, 1.0f)); + + for (i = 0; i < 3; ++i) + ureg_DP4(shader, ureg_writemask(fragment, TGSI_WRITEMASK_X << i), csc[i], ureg_src(texel)); + + ureg_MOV(shader, ureg_writemask(fragment, TGSI_WRITEMASK_W), ureg_imm1f(shader, 1.0f)); + + ureg_release_temporary(shader, texel); + ureg_END(shader); + + return ureg_create_shader_and_destroy(shader, c->pipe); +} + +static void * +create_frag_shader_palette(struct vl_compositor *c) +{ + struct ureg_program *shader; + struct ureg_src csc[3]; + struct ureg_src tc; + struct ureg_src sampler; + struct ureg_src palette; + struct ureg_dst texel; + struct ureg_dst fragment; + unsigned i; + + shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); + if (!shader) + return false; + + for (i = 0; i < 3; ++i) + csc[i] = ureg_DECL_constant(shader, i); + + tc = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, 1, TGSI_INTERPOLATE_LINEAR); + sampler = ureg_DECL_sampler(shader, 0); + palette = ureg_DECL_sampler(shader, 1); + texel = ureg_DECL_temporary(shader); + fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0); + + /* + * texel = tex(tc, sampler) + * fragment.xyz = tex(texel, palette) * csc + * fragment.a = texel.a + */ + ureg_TEX(shader, texel, TGSI_TEXTURE_2D, tc, sampler); + ureg_MUL(shader, ureg_writemask(texel, TGSI_WRITEMASK_X), ureg_src(texel), ureg_imm1f(shader, 15.0f / 16.0f)); + ureg_MOV(shader, ureg_writemask(fragment, TGSI_WRITEMASK_W), ureg_src(texel)); + + ureg_TEX(shader, texel, TGSI_TEXTURE_1D, ureg_src(texel), palette); + + for (i = 0; i < 3; ++i) + ureg_DP4(shader, ureg_writemask(fragment, TGSI_WRITEMASK_X << i), csc[i], ureg_src(texel)); + + ureg_release_temporary(shader, texel); + ureg_END(shader); + + return ureg_create_shader_and_destroy(shader, c->pipe); +} + +static void * +create_frag_shader_rgba(struct vl_compositor *c) +{ + struct ureg_program *shader; + struct ureg_src tc; + struct ureg_src sampler; + struct ureg_dst fragment; + + shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); + if (!shader) + return false; + + tc = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, 1, TGSI_INTERPOLATE_LINEAR); + sampler = ureg_DECL_sampler(shader, 0); + fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0); + + /* + * fragment = tex(tc, sampler) + */ + ureg_TEX(shader, fragment, TGSI_TEXTURE_2D, tc, sampler); + ureg_END(shader); + + return ureg_create_shader_and_destroy(shader, c->pipe); +} + +static bool +init_shaders(struct vl_compositor *c) +{ + assert(c); + + c->vs = create_vert_shader(c); + if (!c->vs) { + debug_printf("Unable to create vertex shader.\n"); + return false; + } + + c->fs_video_buffer = create_frag_shader_video_buffer(c); + if (!c->fs_video_buffer) { + debug_printf("Unable to create YCbCr-to-RGB fragment shader.\n"); + return false; + } + + c->fs_palette = create_frag_shader_palette(c); + if (!c->fs_palette) { + debug_printf("Unable to create Palette-to-RGB fragment shader.\n"); + return false; + } + + c->fs_rgba = create_frag_shader_rgba(c); + if (!c->fs_rgba) { + debug_printf("Unable to create RGB-to-RGB fragment shader.\n"); + return false; + } + + return true; +} + +static void cleanup_shaders(struct vl_compositor *c) +{ + assert(c); + + c->pipe->delete_vs_state(c->pipe, c->vs); + c->pipe->delete_fs_state(c->pipe, c->fs_video_buffer); + c->pipe->delete_fs_state(c->pipe, c->fs_palette); + c->pipe->delete_fs_state(c->pipe, c->fs_rgba); +} + +static bool +init_pipe_state(struct vl_compositor *c) +{ + struct pipe_rasterizer_state rast; + struct pipe_sampler_state sampler; + struct pipe_blend_state blend; + + assert(c); + + c->fb_state.nr_cbufs = 1; + c->fb_state.zsbuf = NULL; + + c->viewport.scale[2] = 1; + c->viewport.scale[3] = 1; + c->viewport.translate[0] = 0; + c->viewport.translate[1] = 0; + c->viewport.translate[2] = 0; + c->viewport.translate[3] = 0; + + memset(&sampler, 0, sizeof(sampler)); + sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler.min_img_filter = PIPE_TEX_FILTER_LINEAR; + sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; + sampler.mag_img_filter = PIPE_TEX_FILTER_LINEAR; + sampler.compare_mode = PIPE_TEX_COMPARE_NONE; + sampler.compare_func = PIPE_FUNC_ALWAYS; + sampler.normalized_coords = 1; + + c->sampler_linear = c->pipe->create_sampler_state(c->pipe, &sampler); + + sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; + sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; + c->sampler_nearest = c->pipe->create_sampler_state(c->pipe, &sampler); + + memset(&blend, 0, sizeof blend); + blend.independent_blend_enable = 0; + blend.rt[0].blend_enable = 1; + blend.rt[0].rgb_func = PIPE_BLEND_ADD; + blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_SRC_ALPHA; + blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_INV_SRC_ALPHA; + blend.rt[0].alpha_func = PIPE_BLEND_ADD; + blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE; + blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ONE; + blend.logicop_enable = 0; + blend.logicop_func = PIPE_LOGICOP_CLEAR; + blend.rt[0].colormask = PIPE_MASK_RGBA; + blend.dither = 0; + c->blend = c->pipe->create_blend_state(c->pipe, &blend); + + memset(&rast, 0, sizeof rast); + rast.flatshade = 1; + rast.front_ccw = 1; + rast.cull_face = PIPE_FACE_NONE; + rast.fill_back = PIPE_POLYGON_MODE_FILL; + rast.fill_front = PIPE_POLYGON_MODE_FILL; + rast.scissor = 1; + rast.line_width = 1; + rast.point_size_per_vertex = 1; + rast.offset_units = 1; + rast.offset_scale = 1; + rast.gl_rasterization_rules = 1; + + c->rast = c->pipe->create_rasterizer_state(c->pipe, &rast); + + return true; +} + +static void cleanup_pipe_state(struct vl_compositor *c) +{ + assert(c); + + c->pipe->delete_sampler_state(c->pipe, c->sampler_linear); + c->pipe->delete_sampler_state(c->pipe, c->sampler_nearest); + c->pipe->delete_blend_state(c->pipe, c->blend); + c->pipe->delete_rasterizer_state(c->pipe, c->rast); +} + +static bool +create_vertex_buffer(struct vl_compositor *c) +{ + assert(c); + + pipe_resource_reference(&c->vertex_buf.buffer, NULL); + c->vertex_buf.buffer = pipe_buffer_create + ( + c->pipe->screen, + PIPE_BIND_VERTEX_BUFFER, + PIPE_USAGE_STREAM, + sizeof(struct vertex4f) * VL_COMPOSITOR_MAX_LAYERS * 4 + ); + return c->vertex_buf.buffer != NULL; +} + +static bool +init_buffers(struct vl_compositor *c) +{ + struct pipe_vertex_element vertex_elems[2]; + + assert(c); + + /* + * Create our vertex buffer and vertex buffer elements + */ + c->vertex_buf.stride = sizeof(struct vertex4f); + c->vertex_buf.buffer_offset = 0; + create_vertex_buffer(c); + + vertex_elems[0].src_offset = 0; + vertex_elems[0].instance_divisor = 0; + vertex_elems[0].vertex_buffer_index = 0; + vertex_elems[0].src_format = PIPE_FORMAT_R32G32_FLOAT; + vertex_elems[1].src_offset = sizeof(struct vertex2f); + vertex_elems[1].instance_divisor = 0; + vertex_elems[1].vertex_buffer_index = 0; + vertex_elems[1].src_format = PIPE_FORMAT_R32G32_FLOAT; + c->vertex_elems_state = c->pipe->create_vertex_elements_state(c->pipe, 2, vertex_elems); + + /* + * Create our fragment shader's constant buffer + * Const buffer contains the color conversion matrix and bias vectors + */ + /* XXX: Create with IMMUTABLE/STATIC... although it does change every once in a long while... */ + c->csc_matrix = pipe_buffer_create + ( + c->pipe->screen, + PIPE_BIND_CONSTANT_BUFFER, + PIPE_USAGE_STATIC, + sizeof(csc_matrix) + ); + + return true; +} + +static void +cleanup_buffers(struct vl_compositor *c) +{ + assert(c); + + c->pipe->delete_vertex_elements_state(c->pipe, c->vertex_elems_state); + pipe_resource_reference(&c->vertex_buf.buffer, NULL); + pipe_resource_reference(&c->csc_matrix, NULL); +} + +static inline struct pipe_video_rect +default_rect(struct vl_compositor_layer *layer) +{ + struct pipe_resource *res = layer->sampler_views[0]->texture; + struct pipe_video_rect rect = { 0, 0, res->width0, res->height0 }; + return rect; +} + +static inline struct vertex2f +calc_topleft(struct vertex2f size, struct pipe_video_rect rect) +{ + struct vertex2f res = { rect.x / size.x, rect.y / size.y }; + return res; +} + +static inline struct vertex2f +calc_bottomright(struct vertex2f size, struct pipe_video_rect rect) +{ + struct vertex2f res = { (rect.x + rect.w) / size.x, (rect.y + rect.h) / size.y }; + return res; +} + +static inline void +calc_src_and_dst(struct vl_compositor_layer *layer, unsigned width, unsigned height, + struct pipe_video_rect src, struct pipe_video_rect dst) +{ + struct vertex2f size = { width, height }; + + layer->src.tl = calc_topleft(size, src); + layer->src.br = calc_bottomright(size, src); + layer->dst.tl = calc_topleft(size, dst); + layer->dst.br = calc_bottomright(size, dst); +} + +static void +gen_rect_verts(struct vertex4f *vb, struct vl_compositor_layer *layer) +{ + assert(vb && layer); + + vb[0].x = layer->dst.tl.x; + vb[0].y = layer->dst.tl.y; + vb[0].z = layer->src.tl.x; + vb[0].w = layer->src.tl.y; + + vb[1].x = layer->dst.br.x; + vb[1].y = layer->dst.tl.y; + vb[1].z = layer->src.br.x; + vb[1].w = layer->src.tl.y; + + vb[2].x = layer->dst.br.x; + vb[2].y = layer->dst.br.y; + vb[2].z = layer->src.br.x; + vb[2].w = layer->src.br.y; + + vb[3].x = layer->dst.tl.x; + vb[3].y = layer->dst.br.y; + vb[3].z = layer->src.tl.x; + vb[3].w = layer->src.br.y; +} + +static void +gen_vertex_data(struct vl_compositor *c) +{ + struct vertex4f *vb; + struct pipe_transfer *buf_transfer; + unsigned i; + + assert(c); + + vb = pipe_buffer_map(c->pipe, c->vertex_buf.buffer, + PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD | PIPE_TRANSFER_DONTBLOCK, + &buf_transfer); + + if (!vb) { + // If buffer is still locked from last draw create a new one + create_vertex_buffer(c); + vb = pipe_buffer_map(c->pipe, c->vertex_buf.buffer, + PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, + &buf_transfer); + } + + for (i = 0; i < VL_COMPOSITOR_MAX_LAYERS; i++) { + if (c->used_layers & (1 << i)) { + struct vl_compositor_layer *layer = &c->layers[i]; + gen_rect_verts(vb, layer); + vb += 4; + + if (layer->clearing && + c->dirty_tl.x >= layer->dst.tl.x && + c->dirty_tl.y >= layer->dst.tl.y && + c->dirty_br.x <= layer->dst.br.x && + c->dirty_br.y <= layer->dst.br.y) { + + // We clear the dirty area anyway, no need for clear_render_target + c->dirty_tl.x = c->dirty_tl.y = 1.0f; + c->dirty_br.x = c->dirty_br.y = 0.0f; + } + } + } + + pipe_buffer_unmap(c->pipe, buf_transfer); +} + +static void +draw_layers(struct vl_compositor *c) +{ + unsigned vb_index, i; + + assert(c); + + for (i = 0, vb_index = 0; i < VL_COMPOSITOR_MAX_LAYERS; ++i) { + if (c->used_layers & (1 << i)) { + struct vl_compositor_layer *layer = &c->layers[i]; + struct pipe_sampler_view **samplers = &layer->sampler_views[0]; + unsigned num_sampler_views = !samplers[1] ? 1 : !samplers[2] ? 2 : 3; + + c->pipe->bind_fs_state(c->pipe, layer->fs); + c->pipe->bind_fragment_sampler_states(c->pipe, num_sampler_views, layer->samplers); + c->pipe->set_fragment_sampler_views(c->pipe, num_sampler_views, samplers); + util_draw_arrays(c->pipe, PIPE_PRIM_QUADS, vb_index * 4, 4); + vb_index++; + + // Remember the currently drawn area as dirty for the next draw command + c->dirty_tl.x = MIN2(layer->dst.tl.x, c->dirty_tl.x); + c->dirty_tl.y = MIN2(layer->dst.tl.y, c->dirty_tl.y); + c->dirty_br.x = MAX2(layer->dst.br.x, c->dirty_br.x); + c->dirty_br.y = MAX2(layer->dst.br.y, c->dirty_br.y); + } + } +} + +void +vl_compositor_reset_dirty_area(struct vl_compositor *c) +{ + assert(c); + + c->dirty_tl.x = c->dirty_tl.y = 0.0f; + c->dirty_br.x = c->dirty_br.y = 1.0f; +} + +void +vl_compositor_set_clear_color(struct vl_compositor *c, float color[4]) +{ + unsigned i; + + assert(c); + + for (i = 0; i < 4; ++i) + c->clear_color[i] = color[i]; +} + +void +vl_compositor_clear_layers(struct vl_compositor *c) +{ + unsigned i, j; + + assert(c); + + c->used_layers = 0; + for ( i = 0; i < VL_COMPOSITOR_MAX_LAYERS; ++i) { + c->layers[i].fs = NULL; + for ( j = 0; j < 3; j++) + pipe_sampler_view_reference(&c->layers[i].sampler_views[j], NULL); + } +} + +void +vl_compositor_cleanup(struct vl_compositor *c) +{ + assert(c); + + vl_compositor_clear_layers(c); + + cleanup_buffers(c); + cleanup_shaders(c); + cleanup_pipe_state(c); +} + +void +vl_compositor_set_csc_matrix(struct vl_compositor *c, const float matrix[16]) +{ + struct pipe_transfer *buf_transfer; + + assert(c); + + memcpy + ( + pipe_buffer_map(c->pipe, c->csc_matrix, + PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, + &buf_transfer), + matrix, + sizeof(csc_matrix) + ); + + pipe_buffer_unmap(c->pipe, buf_transfer); +} + +void +vl_compositor_set_buffer_layer(struct vl_compositor *c, + unsigned layer, + struct pipe_video_buffer *buffer, + struct pipe_video_rect *src_rect, + struct pipe_video_rect *dst_rect) +{ + struct pipe_sampler_view **sampler_views; + unsigned i; + + assert(c && buffer); + + assert(layer < VL_COMPOSITOR_MAX_LAYERS); + + c->used_layers |= 1 << layer; + c->layers[layer].clearing = true; + c->layers[layer].fs = c->fs_video_buffer; + + sampler_views = buffer->get_sampler_view_components(buffer); + for (i = 0; i < 3; ++i) { + c->layers[layer].samplers[i] = c->sampler_linear; + pipe_sampler_view_reference(&c->layers[layer].sampler_views[i], sampler_views[i]); + } + + calc_src_and_dst(&c->layers[layer], buffer->width, buffer->height, + src_rect ? *src_rect : default_rect(&c->layers[layer]), + dst_rect ? *dst_rect : default_rect(&c->layers[layer])); +} + +void +vl_compositor_set_palette_layer(struct vl_compositor *c, + unsigned layer, + struct pipe_sampler_view *indexes, + struct pipe_sampler_view *palette, + struct pipe_video_rect *src_rect, + struct pipe_video_rect *dst_rect) +{ + assert(c && indexes && palette); + + assert(layer < VL_COMPOSITOR_MAX_LAYERS); + + c->used_layers |= 1 << layer; + c->layers[layer].clearing = false; + c->layers[layer].fs = c->fs_palette; + c->layers[layer].samplers[0] = c->sampler_linear; + c->layers[layer].samplers[1] = c->sampler_nearest; + c->layers[layer].samplers[2] = NULL; + pipe_sampler_view_reference(&c->layers[layer].sampler_views[0], indexes); + pipe_sampler_view_reference(&c->layers[layer].sampler_views[1], palette); + pipe_sampler_view_reference(&c->layers[layer].sampler_views[2], NULL); + calc_src_and_dst(&c->layers[layer], indexes->texture->width0, indexes->texture->height0, + src_rect ? *src_rect : default_rect(&c->layers[layer]), + dst_rect ? *dst_rect : default_rect(&c->layers[layer])); + +} + +void +vl_compositor_set_rgba_layer(struct vl_compositor *c, + unsigned layer, + struct pipe_sampler_view *rgba, + struct pipe_video_rect *src_rect, + struct pipe_video_rect *dst_rect) +{ + assert(c && rgba); + + assert(layer < VL_COMPOSITOR_MAX_LAYERS); + + c->used_layers |= 1 << layer; + c->layers[layer].clearing = rgba->swizzle_a == PIPE_SWIZZLE_ONE; + c->layers[layer].fs = c->fs_rgba; + c->layers[layer].samplers[0] = c->sampler_linear; + c->layers[layer].samplers[1] = NULL; + c->layers[layer].samplers[2] = NULL; + pipe_sampler_view_reference(&c->layers[layer].sampler_views[0], rgba); + pipe_sampler_view_reference(&c->layers[layer].sampler_views[1], NULL); + pipe_sampler_view_reference(&c->layers[layer].sampler_views[2], NULL); + calc_src_and_dst(&c->layers[layer], rgba->texture->width0, rgba->texture->height0, + src_rect ? *src_rect : default_rect(&c->layers[layer]), + dst_rect ? *dst_rect : default_rect(&c->layers[layer])); +} + +void +vl_compositor_render(struct vl_compositor *c, + enum pipe_mpeg12_picture_type picture_type, + struct pipe_surface *dst_surface, + struct pipe_video_rect *dst_area, + struct pipe_fence_handle **fence) +{ + struct pipe_scissor_state scissor; + + assert(c); + assert(dst_surface); + + c->fb_state.width = dst_surface->width; + c->fb_state.height = dst_surface->height; + c->fb_state.cbufs[0] = dst_surface; + + c->viewport.scale[0] = dst_surface->width; + c->viewport.scale[1] = dst_surface->height; + + if (dst_area) { + scissor.minx = dst_area->x; + scissor.miny = dst_area->y; + scissor.maxx = dst_area->x + dst_area->w; + scissor.maxy = dst_area->y + dst_area->h; + } else { + scissor.minx = 0; + scissor.miny = 0; + scissor.maxx = dst_surface->width; + scissor.maxy = dst_surface->height; + } + + gen_vertex_data(c); + + if (c->dirty_tl.x < c->dirty_br.x || c->dirty_tl.y < c->dirty_br.y) { + util_clear_render_target(c->pipe, dst_surface, c->clear_color, 0, 0, dst_surface->width, dst_surface->height); + c->dirty_tl.x = c->dirty_tl.y = 1.0f; + c->dirty_br.x = c->dirty_br.y = 0.0f; + } + + c->pipe->set_scissor_state(c->pipe, &scissor); + c->pipe->set_framebuffer_state(c->pipe, &c->fb_state); + c->pipe->set_viewport_state(c->pipe, &c->viewport); + c->pipe->bind_vs_state(c->pipe, c->vs); + c->pipe->set_vertex_buffers(c->pipe, 1, &c->vertex_buf); + c->pipe->bind_vertex_elements_state(c->pipe, c->vertex_elems_state); + c->pipe->set_constant_buffer(c->pipe, PIPE_SHADER_FRAGMENT, 0, c->csc_matrix); + c->pipe->bind_blend_state(c->pipe, c->blend); + c->pipe->bind_rasterizer_state(c->pipe, c->rast); + + draw_layers(c); + + c->pipe->flush(c->pipe, fence); +} + +bool +vl_compositor_init(struct vl_compositor *c, struct pipe_context *pipe) +{ + csc_matrix csc_matrix; + + c->pipe = pipe; + + if (!init_pipe_state(c)) + return false; + + if (!init_shaders(c)) { + cleanup_pipe_state(c); + return false; + } + if (!init_buffers(c)) { + cleanup_shaders(c); + cleanup_pipe_state(c); + return false; + } + + vl_compositor_clear_layers(c); + + vl_csc_get_matrix(VL_CSC_COLOR_STANDARD_IDENTITY, NULL, true, csc_matrix); + vl_compositor_set_csc_matrix(c, csc_matrix); + + c->clear_color[0] = c->clear_color[1] = 0.0f; + c->clear_color[2] = c->clear_color[3] = 0.0f; + vl_compositor_reset_dirty_area(c); + + return true; +} |