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

Branch : - branch - main - tag -

• Show log

  Commit

• Author : Jeff Gilbert
  Date : 2017-11-14 16:44:36
  Hash : 3dddccff
  Message : Support RGB gl-tex-external stream consumers for StreamProducerNV12. This makes it relatively simple to sample from a D3D11Texture of arbitrary format. From: https://bugzilla.mozilla.org/show_bug.cgi?id=1322746 BUG=angleproject:2233 TEST=angle_end2end_tests Change-Id: I10cd3043b5cb0c5d36dd613467ba6c0ceadf41af Reviewed-on: https://chromium-review.googlesource.com/758042 Commit-Queue: Geoff Lang <geofflang@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>

• 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 validateD3DTexture(void *pointer,
                                            const egl::AttributeMap &attributes) 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 postD3DTexture(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_