michael@0: //
michael@0: // Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: //
michael@0: 
michael@0: // utilities.h: Conversion functions and other utility routines.
michael@0: 
michael@0: #ifndef LIBGLESV2_UTILITIES_H
michael@0: #define LIBGLESV2_UTILITIES_H
michael@0: 
michael@0: #define GL_APICALL
michael@0: #include <GLES2/gl2.h>
michael@0: #include <GLES2/gl2ext.h>
michael@0: 
michael@0: #include <string>
michael@0: 
michael@0: namespace gl
michael@0: {
michael@0: 
michael@0: struct Color;
michael@0: 
michael@0: int UniformComponentCount(GLenum type);
michael@0: GLenum UniformComponentType(GLenum type);
michael@0: size_t UniformInternalSize(GLenum type);
michael@0: size_t UniformExternalSize(GLenum type);
michael@0: int VariableRowCount(GLenum type);
michael@0: int VariableColumnCount(GLenum type);
michael@0: 
michael@0: int AllocateFirstFreeBits(unsigned int *bits, unsigned int allocationSize, unsigned int bitsSize);
michael@0: 
michael@0: void MakeValidSize(bool isImage, bool isCompressed, GLsizei *requestWidth, GLsizei *requestHeight, int *levelOffset);
michael@0: int ComputePixelSize(GLint internalformat);
michael@0: GLsizei ComputePitch(GLsizei width, GLint internalformat, GLint alignment);
michael@0: GLsizei ComputeCompressedPitch(GLsizei width, GLenum format);
michael@0: GLsizei ComputeCompressedSize(GLsizei width, GLsizei height, GLenum format);
michael@0: GLsizei ComputeTypeSize(GLenum type);
michael@0: bool IsCompressed(GLenum format);
michael@0: bool IsDepthTexture(GLenum format);
michael@0: bool IsStencilTexture(GLenum format);
michael@0: bool IsCubemapTextureTarget(GLenum target);
michael@0: bool IsInternalTextureTarget(GLenum target);
michael@0: GLint ConvertSizedInternalFormat(GLenum format, GLenum type);
michael@0: GLenum ExtractFormat(GLenum internalformat);
michael@0: GLenum ExtractType(GLenum internalformat);
michael@0: 
michael@0: bool IsColorRenderable(GLenum internalformat);
michael@0: bool IsDepthRenderable(GLenum internalformat);
michael@0: bool IsStencilRenderable(GLenum internalformat);
michael@0: 
michael@0: bool IsFloat32Format(GLint internalformat);
michael@0: bool IsFloat16Format(GLint internalformat);
michael@0: 
michael@0: GLuint GetAlphaSize(GLenum colorFormat);
michael@0: GLuint GetRedSize(GLenum colorFormat);
michael@0: GLuint GetGreenSize(GLenum colorFormat);
michael@0: GLuint GetBlueSize(GLenum colorFormat);
michael@0: GLuint GetDepthSize(GLenum depthFormat);
michael@0: GLuint GetStencilSize(GLenum stencilFormat);
michael@0: bool IsTriangleMode(GLenum drawMode);
michael@0: 
michael@0: }
michael@0: 
michael@0: std::string getTempPath();
michael@0: void writeFile(const char* path, const void* data, size_t size);
michael@0: 
michael@0: #endif  // LIBGLESV2_UTILITIES_H