kc3-lang/angle/src/libANGLE/renderer/TextureImpl.cpp

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• Hash : 9184973f
  Author :
  Date : 2021-07-21T08:28:30
  

  Add GetCompressedTexImageANGLE to ANGLE_get_image
  
  Includes front-end support for reading back compressed texture images.
  Back-end support is incomplete and will be implemented in a future CL.
  
  CL authored by cnorthrop@google.com.
  
  Bug: angleproject:6177
  Change-Id: I1482b15e5ffec6120f09f51b2718cdbef07c93c8
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3163359
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Tim Van Patten <timvp@google.com>
  Reviewed-by: Cody Northrop <cnorthrop@google.com>
  

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• src/libANGLE/renderer/TextureImpl.cpp

• //
  // Copyright 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.
  //
  
  // TextureImpl.cpp: Defines the abstract rx::TextureImpl classes.
  
  #include "libANGLE/renderer/TextureImpl.h"
  
  namespace rx
  {
  TextureImpl::TextureImpl(const gl::TextureState &state) : mState(state) {}
  
  TextureImpl::~TextureImpl() {}
  
  void TextureImpl::onDestroy(const gl::Context *context) {}
  
  angle::Result TextureImpl::copyTexture(const gl::Context *context,
                                         const gl::ImageIndex &index,
                                         GLenum internalFormat,
                                         GLenum type,
                                         GLint sourceLevel,
                                         bool unpackFlipY,
                                         bool unpackPremultiplyAlpha,
                                         bool unpackUnmultiplyAlpha,
                                         const gl::Texture *source)
  {
      UNREACHABLE();
      return angle::Result::Stop;
  }
  
  angle::Result TextureImpl::copySubTexture(const gl::Context *context,
                                            const gl::ImageIndex &index,
                                            const gl::Offset &destOffset,
                                            GLint sourceLevel,
                                            const gl::Box &sourceBox,
                                            bool unpackFlipY,
                                            bool unpackPremultiplyAlpha,
                                            bool unpackUnmultiplyAlpha,
                                            const gl::Texture *source)
  {
      UNREACHABLE();
      return angle::Result::Stop;
  }
  
  angle::Result TextureImpl::copyRenderbufferSubData(const gl::Context *context,
                                                     const gl::Renderbuffer *srcBuffer,
                                                     GLint srcLevel,
                                                     GLint srcX,
                                                     GLint srcY,
                                                     GLint srcZ,
                                                     GLint dstLevel,
                                                     GLint dstX,
                                                     GLint dstY,
                                                     GLint dstZ,
                                                     GLsizei srcWidth,
                                                     GLsizei srcHeight,
                                                     GLsizei srcDepth)
  {
      UNREACHABLE();
      return angle::Result::Stop;
  }
  
  angle::Result TextureImpl::copyTextureSubData(const gl::Context *context,
                                                const gl::Texture *srcTexture,
                                                GLint srcLevel,
                                                GLint srcX,
                                                GLint srcY,
                                                GLint srcZ,
                                                GLint dstLevel,
                                                GLint dstX,
                                                GLint dstY,
                                                GLint dstZ,
                                                GLsizei srcWidth,
                                                GLsizei srcHeight,
                                                GLsizei srcDepth)
  {
      UNREACHABLE();
      return angle::Result::Stop;
  }
  
  angle::Result TextureImpl::copyCompressedTexture(const gl::Context *context,
                                                   const gl::Texture *source)
  {
      UNREACHABLE();
      return angle::Result::Stop;
  }
  
  angle::Result TextureImpl::copy3DTexture(const gl::Context *context,
                                           gl::TextureTarget target,
                                           GLenum internalFormat,
                                           GLenum type,
                                           GLint sourceLevel,
                                           GLint destLevel,
                                           bool unpackFlipY,
                                           bool unpackPremultiplyAlpha,
                                           bool unpackUnmultiplyAlpha,
                                           const gl::Texture *source)
  {
      UNREACHABLE();
      return angle::Result::Stop;
  }
  
  angle::Result TextureImpl::copy3DSubTexture(const gl::Context *context,
                                              const gl::TextureTarget target,
                                              const gl::Offset &destOffset,
                                              GLint sourceLevel,
                                              GLint destLevel,
                                              const gl::Box &srcBox,
                                              bool unpackFlipY,
                                              bool unpackPremultiplyAlpha,
                                              bool unpackUnmultiplyAlpha,
                                              const gl::Texture *source)
  {
      UNREACHABLE();
      return angle::Result::Stop;
  }
  
  angle::Result TextureImpl::setImageExternal(const gl::Context *context,
                                              const gl::ImageIndex &index,
                                              GLenum internalFormat,
                                              const gl::Extents &size,
                                              GLenum format,
                                              GLenum type)
  {
      UNREACHABLE();
      return angle::Result::Stop;
  }
  
  angle::Result TextureImpl::setBuffer(const gl::Context *context, GLenum internalFormat)
  {
      UNREACHABLE();
      return angle::Result::Stop;
  }
  
  GLint TextureImpl::getMemorySize() const
  {
      return 0;
  }
  
  GLint TextureImpl::getLevelMemorySize(gl::TextureTarget target, GLint level)
  {
      return 0;
  }
  
  GLint TextureImpl::getNativeID() const
  {
      UNREACHABLE();
      return 0;
  }
  
  GLenum TextureImpl::getColorReadFormat(const gl::Context *context)
  {
      UNREACHABLE();
      return GL_NONE;
  }
  
  GLenum TextureImpl::getColorReadType(const gl::Context *context)
  {
      UNREACHABLE();
      return GL_NONE;
  }
  
  angle::Result TextureImpl::getTexImage(const gl::Context *context,
                                         const gl::PixelPackState &packState,
                                         gl::Buffer *packBuffer,
                                         gl::TextureTarget target,
                                         GLint level,
                                         GLenum format,
                                         GLenum type,
                                         void *pixels)
  {
      UNREACHABLE();
      return angle::Result::Stop;
  }
  
  angle::Result TextureImpl::getCompressedTexImage(const gl::Context *context,
                                                   const gl::PixelPackState &packState,
                                                   gl::Buffer *packBuffer,
                                                   gl::TextureTarget target,
                                                   GLint level,
                                                   void *pixels)
  {
      UNREACHABLE();
      return angle::Result::Stop;
  }
  
  GLint TextureImpl::getRequiredExternalTextureImageUnits(const gl::Context *context)
  {
      UNREACHABLE();
      return 0;
  }
  
  }  // namespace rx
  

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