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

content/renderer/media/renderer_gpu_video_accelerator_factories.cc

 // Copyright 2013 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 "content/renderer/media/renderer_gpu_video_accelerator_factories.h"
 
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
 
 #include "base/bind.h"
@@ skipping 204 matching lines @@
 std::unique_ptr<gfx::GpuMemoryBuffer>
 RendererGpuVideoAcceleratorFactories::AllocateGpuMemoryBuffer(
     const gfx::Size& size,
     gfx::BufferFormat format,
     gfx::BufferUsage usage) {
   std::unique_ptr<gfx::GpuMemoryBuffer> buffer =
       gpu_memory_buffer_manager_->AllocateGpuMemoryBuffer(
           size, format, usage, gpu::kNullSurfaceHandle);
   return buffer;
 }
+
 bool RendererGpuVideoAcceleratorFactories::
     ShouldUseGpuMemoryBuffersForVideoFrames() const {
   return enable_gpu_memory_buffer_video_frames_;
 }
 
 unsigned RendererGpuVideoAcceleratorFactories::ImageTextureTarget(
     gfx::BufferFormat format) {
   auto found = image_texture_targets_.find(cc::BufferToTextureTargetKey(
       gfx::BufferUsage::GPU_READ_CPU_READ_WRITE, format));
   DCHECK(found != image_texture_targets_.end());
   return found->second;
 }
 
 media::VideoPixelFormat
-RendererGpuVideoAcceleratorFactories::VideoFrameOutputFormat() {
+RendererGpuVideoAcceleratorFactories::VideoFrameOutputFormat(
+    media::VideoPixelFormat format) {
   DCHECK(task_runner_->BelongsToCurrentThread());
   if (CheckContextLost())
     return media::PIXEL_FORMAT_UNKNOWN;
   cc::ContextProvider::ScopedContextLock lock(context_provider_);
   auto capabilities = context_provider_->ContextCapabilities();
+  if (format == media::PIXEL_FORMAT_Y8 || format == media::PIXEL_FORMAT_Y16)
+    return capabilities.texture_rg ? format : media::PIXEL_FORMAT_UNKNOWN;
   if (capabilities.image_ycbcr_420v)
     return media::PIXEL_FORMAT_NV12;
   if (capabilities.image_ycbcr_422)
     return media::PIXEL_FORMAT_UYVY;
   if (capabilities.texture_rg)
     return media::PIXEL_FORMAT_I420;
   return media::PIXEL_FORMAT_UNKNOWN;
 }
 
 namespace {
@@ skipping 51 matching lines @@
   context_provider_refptr_ = nullptr;
 }
 
 scoped_refptr<ContextProviderCommandBuffer>
 RendererGpuVideoAcceleratorFactories::ContextProviderMainThread() {
   DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
   return context_provider_refptr_;
 }
 
 }  // namespace content