kc3-lang/angle/src/libGLESv2/ImageIndex.h

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• Hash : ac7579c2
  Author :
  Date : 2014-09-17T16:59:33
  

  Use ImageIndex in getRenderTarget.
  
  Also change ImageIndex to allow invalid indexes for layer. In 3D
  indexes, sometimes the layer parameter is invalid, indicating we
  index an entire mip level instead of a layer of a mip level.
  
  BUG=angle:741
  
  Change-Id: I7b410f9aaf568f215bb93ae063934669a8fa09bd
  Reviewed-on: https://chromium-review.googlesource.com/218312
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Tested-by: Jamie Madill <jmadill@chromium.org>
  

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• src/libGLESv2/ImageIndex.h

• //
  // Copyright 2014 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.
  //
  
  // ImageIndex.h: A helper struct for indexing into an Image array
  
  #ifndef LIBGLESV2_IMAGE_INDEX_H_
  #define LIBGLESV2_IMAGE_INDEX_H_
  
  #include "angle_gl.h"
  
  namespace gl
  {
  
  struct ImageIndex
  {
      GLenum type;
      GLint mipIndex;
      GLint layerIndex;
  
      ImageIndex(const ImageIndex &other);
      ImageIndex &operator=(const ImageIndex &other);
  
      bool hasLayer() const { return layerIndex != ENTIRE_LEVEL; }
  
      static ImageIndex Make2D(GLint mipIndex);
      static ImageIndex MakeCube(GLenum target, GLint mipIndex);
      static ImageIndex Make2DArray(GLint mipIndex, GLint layerIndex);
      static ImageIndex Make3D(GLint mipIndex, GLint layerIndex = ENTIRE_LEVEL);
  
      static const GLint ENTIRE_LEVEL = static_cast<GLint>(-1);
  
    private:
      ImageIndex(GLenum typeIn, GLint mipIndexIn, GLint layerIndexIn);
  };
  
  }
  
  #endif // LIBGLESV2_IMAGE_INDEX_H_
  

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