16 bpp video stream capture, render and WebGL usage - Realsense R200 & SR300 support.

cc/layers/video_layer_impl.cc

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/layers/video_layer_impl.h"
 
 #include <stddef.h>
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "cc/layers/video_frame_provider_client_impl.h"
 #include "cc/quads/stream_video_draw_quad.h"
 #include "cc/quads/texture_draw_quad.h"
+#include "cc/quads/y_video_draw_quad.h"
 #include "cc/quads/yuv_video_draw_quad.h"
 #include "cc/resources/resource_provider.h"
 #include "cc/resources/single_release_callback_impl.h"
 #include "cc/trees/layer_tree_impl.h"
 #include "cc/trees/occlusion.h"
 #include "cc/trees/task_runner_provider.h"
 #include "media/base/video_frame.h"
 
 #if defined(VIDEO_HOLE)
 #include "cc/quads/solid_color_draw_quad.h"
@@ skipping 277 matching lines @@
       TextureDrawQuad* texture_quad =
           render_pass->CreateAndAppendDrawQuad<TextureDrawQuad>();
       texture_quad->SetNew(shared_quad_state, quad_rect, opaque_rect,
                            visible_quad_rect, frame_resources_[0].id,
                            premultiplied_alpha, uv_top_left, uv_bottom_right,
                            SK_ColorTRANSPARENT, opacity, flipped,
                            nearest_neighbor, false);
       ValidateQuadResources(texture_quad);
       break;
     }
+    case VideoFrameExternalResources::Y16_RESOURCE: {
+      // TODO(astojilj) TextureDrawQuad could be used with nearest_neighbor set
+      // - evaluate if it is required to add YVideoDrawQuad for Y16 and Y8.
+      // For now it desnt't look like YVideoDrawQuad is required as the plan
+      // is to render RG or R in original form.
+      DCHECK_EQ(frame_resources_.size(), 1u);
+      if (frame_resources_.size() < 1u)
+        break;
+      gfx::PointF uv_top_left(0.f, 0.f);
+      gfx::PointF uv_bottom_right(tex_width_scale, tex_height_scale);
+      YVideoDrawQuad* y_video_quad =

[dshwang, 2016/07/04 18:23:16]

IMO, existing TextureDrawQuad can handle it.

[aleksandar.stojiljkovic, 2016/07/05 19:54:17]

Done.

+          render_pass->CreateAndAppendDrawQuad<YVideoDrawQuad>();
+      y_video_quad->SetNew(shared_quad_state, quad_rect, opaque_rect,
+          visible_quad_rect, frame_resources_[0].id, uv_top_left,
+          uv_bottom_right);
+      ValidateQuadResources(y_video_quad);
+      break;
+    }
     case VideoFrameExternalResources::STREAM_TEXTURE_RESOURCE: {
       DCHECK_EQ(frame_resources_.size(), 1u);
       if (frame_resources_.size() < 1u)
         break;
       gfx::Transform scale;
       scale.Scale(tex_width_scale, tex_height_scale);
       StreamVideoDrawQuad* stream_video_quad =
           render_pass->CreateAndAppendDrawQuad<StreamVideoDrawQuad>();
       stream_video_quad->SetNew(
           shared_quad_state, quad_rect, opaque_rect, visible_quad_rect,
@@ skipping 75 matching lines @@
 void VideoLayerImpl::SetNeedsRedraw() {
   SetUpdateRect(gfx::UnionRects(update_rect(), gfx::Rect(bounds())));
   layer_tree_impl()->SetNeedsRedraw();
 }
 
 const char* VideoLayerImpl::LayerTypeAsString() const {
   return "cc::VideoLayerImpl";
 }
 
 }  // namespace cc