1 // 2 // Copyright 2014 The ANGLE Project Authors. All rights reserved. 3 // Use of this source code is governed by a BSD-style license that can be 4 // found in the LICENSE file. 5 // 6 7 // ImageIndex.h: A helper struct for indexing into an Image array 8 9 #ifndef LIBGLESV2_IMAGE_INDEX_H_ 10 #define LIBGLESV2_IMAGE_INDEX_H_ 11 12 #include "angle_gl.h" 13 14 namespace gl 15 { 16 17 struct ImageIndex 18 { 19 GLenum type; 20 GLint mipIndex; 21 GLint layerIndex; 22 23 ImageIndex(const ImageIndex &other); 24 ImageIndex &operator=(const ImageIndex &other); 25 26 bool hasLayer() const { return layerIndex != ENTIRE_LEVEL; } 27 28 static ImageIndex Make2D(GLint mipIndex); 29 static ImageIndex MakeCube(GLenum target, GLint mipIndex); 30 static ImageIndex Make2DArray(GLint mipIndex, GLint layerIndex); 31 static ImageIndex Make3D(GLint mipIndex, GLint layerIndex = ENTIRE_LEVEL); 32 33 static const GLint ENTIRE_LEVEL = static_cast<GLint>(-1); 34 35 private: 36 ImageIndex(GLenum typeIn, GLint mipIndexIn, GLint layerIndexIn); 37 }; 38 39 } 40 41 #endif // LIBGLESV2_IMAGE_INDEX_H_ 42
