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-rw-r--r--src/gallium/auxiliary/vl/vl_compositor.c734
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
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+/**************************************************************************
+ *
+ * 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;
+}