16 bpp video stream capture, render and createImageBitmap(video) using (CPU) shared memory buffers

third_party/WebKit/Source/core/html/HTMLVideoElement.cpp

 /*
  * Copyright (C) 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 206 matching lines @@
     bool flipY) {
   if (!webMediaPlayer())
     return false;
 
   DCHECK(Extensions3DUtil::canUseCopyTextureCHROMIUM(GL_TEXTURE_2D,
                                                      internalFormat, type, 0));
   return webMediaPlayer()->copyVideoTextureToPlatformTexture(
       gl, texture, internalFormat, type, premultiplyAlpha, flipY);
 }
 
+bool HTMLVideoElement::texImageImpl(const char* functionID,
+                                    GLenum target,
+                                    gpu::gles2::GLES2Interface* gl,
+                                    GLint level,
+                                    GLint internalformat,
+                                    GLenum format,
+                                    GLenum type,
+                                    GLint xoffset,
+                                    GLint yoffset,
+                                    GLint zoffset,
+                                    bool flipY,
+                                    bool premultiplyAlpha) {
+  if (!webMediaPlayer())
+    return false;
+  return webMediaPlayer()->texImageImpl(
+      functionID, target, gl, level, internalformat, format, type, xoffset,
+      yoffset, zoffset, flipY, premultiplyAlpha);
+}
+
 bool HTMLVideoElement::hasAvailableVideoFrame() const {
   if (!webMediaPlayer())
     return false;
 
   return webMediaPlayer()->hasVideo() &&
          webMediaPlayer()->getReadyState() >=
              WebMediaPlayer::ReadyStateHaveCurrentData;
 }
 
 void HTMLVideoElement::webkitEnterFullscreen() {
@@ skipping 119 matching lines @@
     return ScriptPromise();
   if (!ImageBitmap::isResizeOptionValid(options, exceptionState))
     return ScriptPromise();
   return ImageBitmapSource::fulfillImageBitmap(
       scriptState,
       ImageBitmap::create(this, cropRect,
                           eventTarget.toLocalDOMWindow()->document(), options));
 }
 
 }  // namespace blink