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

media/capture/video/fake_video_capture_device.cc

Index: media/capture/video/fake_video_capture_device.cc
diff --git a/media/capture/video/fake_video_capture_device.cc b/media/capture/video/fake_video_capture_device.cc
index 0aea00ad80cb6b98898b9c3cb86863b5b57ebe00..cb4400ec0e11d124c43777abfe5b05dc2f92d4b7 100644
--- a/media/capture/video/fake_video_capture_device.cc
+++ b/media/capture/video/fake_video_capture_device.cc
@@ -113,9 +113,11 @@ void DoTakeFakePhoto(VideoCaptureDevice::TakePhotoCallback callback,
 }
 
 FakeVideoCaptureDevice::FakeVideoCaptureDevice(BufferOwnership buffer_ownership,
-                                               float fake_capture_rate)
+                                               float fake_capture_rate,
+                                               VideoPixelFormat pixel_format)
     : buffer_ownership_(buffer_ownership),
       fake_capture_rate_(fake_capture_rate),
+      pixel_format_(pixel_format),
       current_zoom_(kMinZoom),
       weak_factory_(this) {}
 
@@ -143,19 +145,20 @@ void FakeVideoCaptureDevice::AllocateAndStart(
   else
     capture_format_.frame_size.SetSize(320, 240);
 
+  capture_format_.pixel_format = pixel_format_;
   if (buffer_ownership_ == BufferOwnership::CLIENT_BUFFERS) {
     capture_format_.pixel_storage = PIXEL_STORAGE_CPU;
     capture_format_.pixel_format = PIXEL_FORMAT_ARGB;
     DVLOG(1) << "starting with client argb buffers";
   } else if (buffer_ownership_ == BufferOwnership::OWN_BUFFERS) {
     capture_format_.pixel_storage = PIXEL_STORAGE_CPU;
-    capture_format_.pixel_format = PIXEL_FORMAT_I420;
-    DVLOG(1) << "starting with own I420 buffers";
+    DVLOG(1) << "starting with own" << VideoPixelFormatToString(pixel_format_)
+             << "buffers";
   }
 
-  if (capture_format_.pixel_format == PIXEL_FORMAT_I420) {
+  if (buffer_ownership_ != BufferOwnership::CLIENT_BUFFERS) {
     fake_frame_.reset(new uint8_t[VideoFrame::AllocationSize(
-        PIXEL_FORMAT_I420, capture_format_.frame_size)]);
+        pixel_format_, capture_format_.frame_size)]);
   }
 
   beep_time_ = base::TimeDelta();
@@ -249,8 +252,7 @@ void FakeVideoCaptureDevice::CaptureUsingClientBuffers(
   DLOG_IF(ERROR, !capture_buffer) << "Couldn't allocate Capture Buffer";
   DCHECK(capture_buffer->data()) << "Buffer has NO backing memory";
 
-  if (capture_format_.pixel_storage == PIXEL_STORAGE_GPUMEMORYBUFFER &&
-      capture_format_.pixel_format == media::PIXEL_FORMAT_I420) {
+  if (capture_format_.pixel_storage == PIXEL_STORAGE_GPUMEMORYBUFFER) {
     // Since SkBitmap expects a packed&continuous memory region for I420, we
     // need to use |fake_frame_| to draw onto.
     memset(fake_frame_.get(), 0, capture_format_.ImageAllocationSize());
@@ -259,9 +261,10 @@ void FakeVideoCaptureDevice::CaptureUsingClientBuffers(
 
     // Copy data from |fake_frame_| into the reserved planes of GpuMemoryBuffer.
     size_t offset = 0;
-    for (size_t i = 0; i < VideoFrame::NumPlanes(PIXEL_FORMAT_I420); ++i) {
+    for (size_t i = 0; i < VideoFrame::NumPlanes(capture_format_.pixel_format);
+         ++i) {
       const size_t plane_size =
-          VideoFrame::PlaneSize(PIXEL_FORMAT_I420, i,
+          VideoFrame::PlaneSize(capture_format_.pixel_format, i,
                                 capture_format_.frame_size)
               .GetArea();
       memcpy(capture_buffer->data(i), fake_frame_.get() + offset, plane_size);