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 #ifndef sw_VertexProgram_hpp 16 #define sw_VertexProgram_hpp 17 18 #include "VertexRoutine.hpp" 19 #include "ShaderCore.hpp" 20 21 #include "SamplerCore.hpp" 22 #include "Renderer/Stream.hpp" 23 #include "Common/Types.hpp" 24 25 #include <unordered_map> 26 27 namespace sw 28 { 29 struct Stream; 30 class VertexShader; 31 32 class VertexProgram : public VertexRoutine, public ShaderCore 33 { 34 public: 35 VertexProgram(const VertexProcessor::State &state, const VertexShader *vertexShader); 36 37 virtual ~VertexProgram(); 38 39 private: 40 const VertexShader *const shader; 41 42 RegisterArray<NUM_TEMPORARY_REGISTERS> r; // Temporary registers 43 Vector4f a0; 44 Array<Int> aL; // loop counter register 45 Vector4f p0; 46 47 Array<Int> increment; 48 Array<Int> iteration; 49 50 Int loopDepth; 51 Int stackIndex; // FIXME: Inc/decrement callStack 52 Array<UInt> callStack; 53 54 Int enableIndex; 55 Array<Int4, MAX_SHADER_ENABLE_STACK_SIZE> enableStack; 56 Int4 enableBreak; 57 Int4 enableContinue; 58 Int4 enableLeave; 59 60 Int instanceID; 61 Int4 vertexID; 62 63 typedef Shader::DestinationParameter Dst; 64 typedef Shader::SourceParameter Src; 65 typedef Shader::Control Control; 66 typedef Shader::Usage Usage; 67 68 void pipeline(UInt &index) override; 69 void program(UInt &index); 70 void passThrough(); 71 72 Vector4f fetchRegister(const Src &src, unsigned int offset = 0); 73 Vector4f readConstant(const Src &src, unsigned int offset = 0); 74 RValue<Pointer<Byte>> uniformAddress(int bufferIndex, unsigned int index); 75 RValue<Pointer<Byte>> uniformAddress(int bufferIndex, unsigned int index, Int &offset); 76 Int relativeAddress(const Shader::Relative &rel, int bufferIndex = -1); 77 Int4 dynamicAddress(const Shader::Relative &rel); 78 Int4 enableMask(const Shader::Instruction *instruction); 79 80 void M3X2(Vector4f &dst, Vector4f &src0, Src &src1); 81 void M3X3(Vector4f &dst, Vector4f &src0, Src &src1); 82 void M3X4(Vector4f &dst, Vector4f &src0, Src &src1); 83 void M4X3(Vector4f &dst, Vector4f &src0, Src &src1); 84 void M4X4(Vector4f &dst, Vector4f &src0, Src &src1); 85 void BREAK(); 86 void BREAKC(Vector4f &src0, Vector4f &src1, Control); 87 void BREAKP(const Src &predicateRegister); 88 void BREAK(Int4 &condition); 89 void CONTINUE(); 90 void TEST(); 91 void SCALAR(); 92 void CALL(int labelIndex, int callSiteIndex); 93 void CALLNZ(int labelIndex, int callSiteIndex, const Src &src); 94 void CALLNZb(int labelIndex, int callSiteIndex, const Src &boolRegister); 95 void CALLNZp(int labelIndex, int callSiteIndex, const Src &predicateRegister); 96 void ELSE(); 97 void ENDIF(); 98 void ENDLOOP(); 99 void ENDREP(); 100 void ENDWHILE(); 101 void ENDSWITCH(); 102 void IF(const Src &src); 103 void IFb(const Src &boolRegister); 104 void IFp(const Src &predicateRegister); 105 void IFC(Vector4f &src0, Vector4f &src1, Control); 106 void IF(Int4 &condition); 107 void LABEL(int labelIndex); 108 void LOOP(const Src &integerRegister); 109 void REP(const Src &integerRegister); 110 void WHILE(const Src &temporaryRegister); 111 void SWITCH(); 112 void RET(); 113 void LEAVE(); 114 void TEX(Vector4f &dst, Vector4f &src, const Src&); 115 void TEXOFFSET(Vector4f &dst, Vector4f &src, const Src&, Vector4f &offset); 116 void TEXLOD(Vector4f &dst, Vector4f &src, const Src&, Float4 &lod); 117 void TEXLODOFFSET(Vector4f &dst, Vector4f &src, const Src&, Vector4f &offset, Float4 &lod); 118 void TEXELFETCH(Vector4f &dst, Vector4f &src, const Src&, Float4 &lod); 119 void TEXELFETCHOFFSET(Vector4f &dst, Vector4f &src, const Src&, Vector4f &offset, Float4 &lod); 120 void TEXGRAD(Vector4f &dst, Vector4f &src, const Src&, Vector4f &dsx, Vector4f &dsy); 121 void TEXGRADOFFSET(Vector4f &dst, Vector4f &src, const Src&, Vector4f &dsx, Vector4f &dsy, Vector4f &offset); 122 void TEXSIZE(Vector4f &dst, Float4 &lod, const Src&); 123 124 Vector4f sampleTexture(const Src &s, Vector4f &uvwq, Float4 &lod, Vector4f &dsx, Vector4f &dsy, Vector4f &offset, SamplerFunction function); 125 Vector4f sampleTexture(int sampler, Vector4f &uvwq, Float4 &lod, Vector4f &dsx, Vector4f &dsy, Vector4f &offset, SamplerFunction function); 126 127 int ifDepth = 0; 128 int loopRepDepth = 0; 129 int currentLabel = -1; 130 bool scalar = false; 131 132 std::vector<BasicBlock*> ifFalseBlock; 133 std::vector<BasicBlock*> loopRepTestBlock; 134 std::vector<BasicBlock*> loopRepEndBlock; 135 std::vector<BasicBlock*> labelBlock; 136 std::unordered_map<unsigned int, std::vector<BasicBlock*>> callRetBlock; // label -> list of call sites 137 BasicBlock *returnBlock; 138 std::vector<bool> isConditionalIf; 139 std::vector<Int4> restoreContinue; 140 }; 141 } 142 143 #endif // sw_VertexProgram_hpp 144