1 // Copyright 2016 The SwiftShader Authors. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 // utilities.h: Conversion functions and other utility routines. 16 17 #ifndef LIBGLES_CM_UTILITIES_H 18 #define LIBGLES_CM_UTILITIES_H 19 20 #include "Device.hpp" 21 #include "common/Image.hpp" 22 #include "Texture.h" 23 24 #include <GLES/gl.h> 25 #include <GLES/glext.h> 26 27 #include <string> 28 29 namespace es1 30 { 31 struct Color; 32 33 bool IsCompressed(GLenum format); 34 bool IsDepthTexture(GLenum format); 35 bool IsStencilTexture(GLenum format); 36 bool IsCubemapTextureTarget(GLenum target); 37 int CubeFaceIndex(GLenum cubeTarget); 38 bool IsTextureTarget(GLenum target); 39 bool CheckTextureFormatType(GLenum format, GLenum type); 40 41 bool IsColorRenderable(GLenum internalformat); 42 bool IsDepthRenderable(GLenum internalformat); 43 bool IsStencilRenderable(GLenum internalformat); 44 45 bool IsAlpha(GLenum texFormat); 46 bool IsRGB(GLenum texFormat); 47 bool IsRGBA(GLenum texFormat); 48 } 49 50 namespace es2sw 51 { 52 sw::DepthCompareMode ConvertDepthComparison(GLenum comparison); 53 sw::StencilCompareMode ConvertStencilComparison(GLenum comparison); 54 sw::AlphaCompareMode ConvertAlphaComparison(GLenum comparison); 55 sw::Color<float> ConvertColor(es1::Color color); 56 sw::BlendFactor ConvertBlendFunc(GLenum blend); 57 sw::BlendOperation ConvertBlendOp(GLenum blendOp); 58 sw::LogicalOperation ConvertLogicalOperation(GLenum logicalOperation); 59 sw::StencilOperation ConvertStencilOp(GLenum stencilOp); 60 sw::AddressingMode ConvertTextureWrap(GLenum wrap); 61 sw::CullMode ConvertCullMode(GLenum cullFace, GLenum frontFace); 62 unsigned int ConvertColorMask(bool red, bool green, bool blue, bool alpha); 63 sw::MipmapType ConvertMipMapFilter(GLenum minFilter); 64 sw::FilterType ConvertTextureFilter(GLenum minFilter, GLenum magFilter, float maxAnisotropy); 65 bool ConvertPrimitiveType(GLenum primitiveType, GLsizei elementCount, GLenum elementType, sw::DrawType &swPrimitiveType, int &primitiveCount); 66 sw::Format ConvertRenderbufferFormat(GLenum format); 67 sw::TextureStage::StageOperation ConvertCombineOperation(GLenum operation); 68 sw::TextureStage::SourceArgument ConvertSourceArgument(GLenum argument); 69 sw::TextureStage::ArgumentModifier ConvertSourceOperand(GLenum operand); 70 } 71 72 namespace sw2es 73 { 74 GLuint GetAlphaSize(sw::Format colorFormat); 75 GLuint GetRedSize(sw::Format colorFormat); 76 GLuint GetGreenSize(sw::Format colorFormat); 77 GLuint GetBlueSize(sw::Format colorFormat); 78 GLuint GetDepthSize(sw::Format depthFormat); 79 GLuint GetStencilSize(sw::Format stencilFormat); 80 81 GLenum ConvertBackBufferFormat(sw::Format format); 82 GLenum ConvertDepthStencilFormat(sw::Format format); 83 } 84 85 #endif // LIBGLES_CM_UTILITIES_H 86
