kc3-lang/angle/src/libANGLE/renderer/StreamProducerImpl.h

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• Hash : bda75597
  Author :
  Date : 2016-04-18T17:25:54
  

  Finish NV12 support via streams.
  
  The main functionality for NV12 texture support through EGL streams has
  been added. Updates to the compiler, texture code, and stream code were
  added to support binding to external D3D11 NV12 textures. An end2end test
  was also added to test sampling of YUV textures and converting to RGB.
  There is also a new script to convert BMP files to an NV12 texture ready
  to load into D3D11 for testing purposes.
  
  BUG=angleproject:1332
  
  Change-Id: I39b6ec393ea338e2c843fb911acc1b36cd1158a0
  Reviewed-on: https://chromium-review.googlesource.com/339454
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Ian Ewell <ewell@google.com>
  Reviewed-on: https://chromium-review.googlesource.com/341254
  Reviewed-by: Ian Ewell <ewell@google.com>
  

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• src/libANGLE/renderer/StreamProducerImpl.h

• //
  // Copyright (c) 2016 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // StreamProducerImpl.h: Defines the abstract rx::StreamProducerImpl class.
  
  #ifndef LIBANGLE_RENDERER_STREAMPRODUCERIMPL_H_
  #define LIBANGLE_RENDERER_STREAMPRODUCERIMPL_H_
  
  #include "common/angleutils.h"
  #include "libANGLE/Stream.h"
  
  namespace rx
  {
  
  class StreamProducerImpl : angle::NonCopyable
  {
    public:
      explicit StreamProducerImpl() {}
      virtual ~StreamProducerImpl() {}
  
      // Validates the ability for the producer to accept an arbitrary pointer to a frame. All
      // pointers should be validated through this function before being used to produce a frame.
      virtual egl::Error validateD3DNV12Texture(void *pointer) const = 0;
  
      // Constructs a frame from an arbitrary external pointer that points to producer specific frame
      // data. Replaces the internal frame with the new one.
      virtual void postD3DNV12Texture(void *pointer, const egl::AttributeMap &attributes) = 0;
  
      // Returns an OpenGL texture interpretation of some frame attributes for the purpose of
      // constructing an OpenGL texture from a frame. Depending on the producer and consumer, some
      // frames may have multiple "planes" with different OpenGL texture representations.
      virtual egl::Stream::GLTextureDescription getGLFrameDescription(int planeIndex) = 0;
  };
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_STREAMPRODUCERIMPL_H_
  

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