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

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• Author : Shannon Woods
  Date : 2014-03-17 18:13:30
  Hash : 4d161bad
  Message : Amends CopyTexImage validation to conform to new language in the ES 3.0.3 spec. bug=angle:582 Also performs format checks for non-subimage copies, and permits unsized format textures as destination for the copy. Change-Id: Id647bb968416fbd35e1c70e5da21c81367e08f07 Reviewed-on: https://chromium-review.googlesource.com/189431 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Shannon Woods <shannonwoods@chromium.org>

• src/libGLESv2/formatutils.h

• //
  // Copyright (c) 2013 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.
  //
  
  // formatutils.h: Queries for GL image formats.
  
  #ifndef LIBGLESV2_FORMATUTILS_H_
  #define LIBGLESV2_FORMATUTILS_H_
  
  #define GL_APICALL
  #include <GLES3/gl3.h>
  #include <GLES2/gl2.h>
  #include <GLES2/gl2ext.h>
  
  #include "libGLESv2/angletypes.h"
  
  typedef void (*MipGenerationFunction)(unsigned int sourceWidth, unsigned int sourceHeight, unsigned int sourceDepth,
                                        const unsigned char *sourceData, int sourceRowPitch, int sourceDepthPitch,
                                        unsigned char *destData, int destRowPitch, int destDepthPitch);
  
  typedef void (*LoadImageFunction)(int width, int height, int depth,
                                    const void *input, unsigned int inputRowPitch, unsigned int inputDepthPitch,
                                    void *output, unsigned int outputRowPitch, unsigned int outputDepthPitch);
  
  typedef void (*InitializeTextureDataFunction)(int width, int height, int depth,
                                                void *output, unsigned int outputRowPitch, unsigned int outputDepthPitch);
  
  typedef void (*ColorReadFunction)(const void *source, void *dest);
  typedef void (*ColorWriteFunction)(const void *source, void *dest);
  typedef void (*ColorCopyFunction)(const void *source, void *dest);
  
  typedef void (*VertexCopyFunction)(const void *input, size_t stride, size_t count, void *output);
  
  namespace rx
  {
  
  class Renderer;
  
  }
  
  namespace gl
  {
  
  class Context;
  
  bool IsValidInternalFormat(GLenum internalFormat, const Context *context);
  bool IsValidFormat(GLenum format, GLuint clientVersion);
  bool IsValidType(GLenum type, GLuint clientVersion);
  
  bool IsValidFormatCombination(GLenum internalFormat, GLenum format, GLenum type, GLuint clientVersion);
  bool IsValidCopyTexImageCombination(GLenum textureInternalFormat, GLenum frameBufferInternalFormat, GLuint readBufferHandle, GLuint clientVersion);
  
  bool IsSizedInternalFormat(GLenum internalFormat, GLuint clientVersion);
  GLenum GetSizedInternalFormat(GLenum format, GLenum type, GLuint clientVersion);
  
  GLuint GetPixelBytes(GLenum internalFormat, GLuint clientVersion);
  GLuint GetAlphaBits(GLenum internalFormat, GLuint clientVersion);
  GLuint GetRedBits(GLenum internalFormat, GLuint clientVersion);
  GLuint GetGreenBits(GLenum internalFormat, GLuint clientVersion);
  GLuint GetBlueBits(GLenum internalFormat, GLuint clientVersion);
  GLuint GetLuminanceBits(GLenum internalFormat, GLuint clientVersion);
  GLuint GetDepthBits(GLenum internalFormat, GLuint clientVersion);
  GLuint GetStencilBits(GLenum internalFormat, GLuint clientVersion);
  
  GLuint GetTypeBytes(GLenum type);
  bool IsSpecialInterpretationType(GLenum type);
  bool IsFloatOrFixedComponentType(GLenum type);
  
  GLenum GetFormat(GLenum internalFormat, GLuint clientVersion);
  GLenum GetType(GLenum internalFormat, GLuint clientVersion);
  
  GLenum GetComponentType(GLenum internalFormat, GLuint clientVersion);
  GLuint GetComponentCount(GLenum internalFormat, GLuint clientVersion);
  GLenum GetColorEncoding(GLenum internalFormat, GLuint clientVersion);
  
  bool IsColorRenderingSupported(GLenum internalFormat, const rx::Renderer *renderer);
  bool IsColorRenderingSupported(GLenum internalFormat, const Context *context);
  bool IsTextureFilteringSupported(GLenum internalFormat, const rx::Renderer *renderer);
  bool IsTextureFilteringSupported(GLenum internalFormat, const Context *context);
  bool IsDepthRenderingSupported(GLenum internalFormat, const rx::Renderer *renderer);
  bool IsDepthRenderingSupported(GLenum internalFormat, const Context *context);
  bool IsStencilRenderingSupported(GLenum internalFormat, const rx::Renderer *renderer);
  bool IsStencilRenderingSupported(GLenum internalFormat, const Context *context);
  
  GLuint GetRowPitch(GLenum internalFormat, GLenum type, GLuint clientVersion, GLsizei width, GLint alignment);
  GLuint GetDepthPitch(GLenum internalFormat, GLenum type, GLuint clientVersion, GLsizei width, GLsizei height, GLint alignment);
  GLuint GetBlockSize(GLenum internalFormat, GLenum type, GLuint clientVersion, GLsizei width, GLsizei height);
  
  bool IsFormatCompressed(GLenum internalFormat, GLuint clientVersion);
  GLuint GetCompressedBlockWidth(GLenum internalFormat, GLuint clientVersion);
  GLuint GetCompressedBlockHeight(GLenum internalFormat, GLuint clientVersion);
  
  ColorWriteFunction GetColorWriteFunction(GLenum format, GLenum type, GLuint clientVersion);
  
  }
  
  #endif LIBGLESV2_FORMATUTILS_H_