WebGL & 16-bit video stream: upload to FLOAT texture.

third_party/WebKit/public/platform/WebMediaPlayer.h

 /*
  * Copyright (C) 2009 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 188 matching lines @@
                                                     unsigned target,
                                                     unsigned texture,
                                                     int level,
                                                     int xoffset,
                                                     int yoffset,
                                                     bool premultiplyAlpha,
                                                     bool flipY) {
     return false;
   }
 
+  // Do tex(Sub)Image2D/3D for current frame. If it is not implemented for given
+  // parameters or fails, it returns false.
+  virtual bool texImageImpl(const char* functionID,
+                            unsigned target,
+                            gpu::gles2::GLES2Interface* gl,
+                            int level,
+                            int internalformat,
+                            unsigned format,
+                            unsigned type,
+                            int xoffset,
+                            int yoffset,
+                            int zoffset,
+                            bool flipY,
+                            bool premultiplyAlpha) {
+    return false;
+  }
+
   virtual WebAudioSourceProvider* getAudioSourceProvider() { return nullptr; }
 
   virtual void setContentDecryptionModule(
       WebContentDecryptionModule* cdm,
       WebContentDecryptionModuleResult result) {
     result.completeWithError(
         WebContentDecryptionModuleExceptionNotSupportedError, 0, "ERROR");
   }
 
   // Sets the poster image URL.
@@ skipping 10 matching lines @@
 
   virtual void enabledAudioTracksChanged(
       const WebVector<TrackId>& enabledTrackIds) {}
   // |selectedTrackId| is null if no track is selected.
   virtual void selectedVideoTrackChanged(TrackId* selectedTrackId) {}
 };
 
 }  // namespace blink
 
 #endif