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

cc/resources/resource_provider.cc

Index: cc/resources/resource_provider.cc
diff --git a/cc/resources/resource_provider.cc b/cc/resources/resource_provider.cc
index 406aa73b3331aaec3e9a9c8fe16258cb53254c3e..6c94a5fedea0135d2ea962941952ce2764410d6c 100644
--- a/cc/resources/resource_provider.cc
+++ b/cc/resources/resource_provider.cc
@@ -91,6 +91,7 @@ GLenum TextureToStorageFormat(ResourceFormat format) {
     case ETC1:
     case RED_8:
     case LUMINANCE_F16:
+    case RG_88:
       NOTREACHED();
       break;
   }
@@ -111,6 +112,7 @@ bool IsFormatSupportedForStorage(ResourceFormat format, bool use_bgra) {
     case ETC1:
     case RED_8:
     case LUMINANCE_F16:
+    case RG_88:
       return false;
   }
   return false;
@@ -447,6 +449,7 @@ ResourceProvider::ResourceProvider(
   use_texture_usage_hint_ = caps.texture_usage;
   use_compressed_texture_etc1_ = caps.texture_format_etc1;
   yuv_resource_format_ = caps.texture_rg ? RED_8 : LUMINANCE_8;
+  y16_resource_format_ = caps.texture_rg ? RG_88 : LUMINANCE_8;
   yuv_highbit_resource_format_ = yuv_resource_format_;
   if (caps.texture_half_float_linear)
     yuv_highbit_resource_format_ = LUMINANCE_F16;
@@ -549,6 +552,14 @@ ResourceFormat ResourceProvider::YuvResourceFormat(int bits) const {
   }
 }
 
+ResourceFormat ResourceProvider::Y16ResourceFormat(int bits) const {
+  if (bits > 8) {
+    return y16_resource_format_;
+  } else {
+    return yuv_resource_format_;
+  }
+}
+
 ResourceId ResourceProvider::CreateResource(const gfx::Size& size,
                                             TextureHint hint,
                                             ResourceFormat format) {