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 87 matching lines @@
   enum LoadType {
     LoadTypeURL = 0,
     LoadTypeMediaSource = 1,
     LoadTypeMediaStream = 2,
     LoadTypeMax = LoadTypeMediaStream,
   };
 
   typedef WebString TrackId;
   enum TrackType { TextTrack, AudioTrack, VideoTrack };
 
+  enum TexImageFunctionID {

[Ken Russell (switch to Gerrit), 2016/11/22 22:47:44]

Add a comment that this must stay in sync with the same enum in
WebGLRenderingContextBase.h -- and vice versa -- or factor it into a tiny shared
header.

[aleksandar.stojiljkovic, 2016/11/27 20:44:00]

Done - comment added to both places.

+    TexImage2D,
+    TexSubImage2D,
+    TexImage3D,
+    TexSubImage3D
+  };
+
   virtual ~WebMediaPlayer() {}
 
   virtual void load(LoadType, const WebMediaPlayerSource&, CORSMode) = 0;
 
   // Playback controls.
   virtual void play() = 0;
   virtual void pause() = 0;
   virtual bool supportsSave() const = 0;
   virtual void seek(double seconds) = 0;
   virtual void setRate(double) = 0;
@@ skipping 82 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.

[Ken Russell (switch to Gerrit), 2016/11/22 22:47:44]

Please define whether this allocates the destination texture, or not, for both
texImage and texSubImage.

[aleksandar.stojiljkovic, 2016/11/27 20:44:00]

Done.

+  virtual bool texImageImpl(TexImageFunctionID 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