| // Copyright 2016 The SwiftShader Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef sw_PixelProgram_hpp |
| #define sw_PixelProgram_hpp |
| |
| #include "PixelRoutine.hpp" |
| #include "SamplerCore.hpp" |
| |
| namespace sw |
| { |
| class PixelProgram : public PixelRoutine |
| { |
| public: |
| PixelProgram(const PixelProcessor::State &state, const PixelShader *shader) : |
| PixelRoutine(state, shader), r(shader && shader->dynamicallyIndexedTemporaries), |
| loopDepth(-1), ifDepth(0), loopRepDepth(0), breakDepth(0), currentLabel(-1), whileTest(false) |
| { |
| for(int i = 0; i < 2048; ++i) |
| { |
| labelBlock[i] = 0; |
| } |
| |
| enableStack[0] = Int4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF); |
| |
| if(shader && shader->containsBreakInstruction()) |
| { |
| enableBreak = Int4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF); |
| } |
| |
| if(shader && shader->containsContinueInstruction()) |
| { |
| enableContinue = Int4(0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF); |
| } |
| } |
| |
| virtual ~PixelProgram() {} |
| |
| protected: |
| virtual void setBuiltins(Int &x, Int &y, Float4(&z)[4], Float4 &w); |
| virtual void applyShader(Int cMask[4]); |
| virtual Bool alphaTest(Int cMask[4]); |
| virtual void rasterOperation(Float4 &fog, Pointer<Byte> cBuffer[4], Int &x, Int sMask[4], Int zMask[4], Int cMask[4]); |
| |
| private: |
| // Temporary registers |
| RegisterArray<4096> r; |
| |
| // Color outputs |
| Vector4f c[RENDERTARGETS]; |
| RegisterArray<RENDERTARGETS, true> oC; |
| |
| // Shader variables |
| Vector4f vPos; |
| Vector4f vFace; |
| |
| // DX9 specific variables |
| Vector4f p0; |
| Array<Int, 4> aL; |
| Array<Int, 4> increment; |
| Array<Int, 4> iteration; |
| |
| Int loopDepth; // FIXME: Add support for switch |
| Int stackIndex; // FIXME: Inc/decrement callStack |
| Array<UInt, 16> callStack; |
| |
| // Per pixel based on conditions reached |
| Int enableIndex; |
| Array<Int4, 1 + 24> enableStack; |
| Int4 enableBreak; |
| Int4 enableContinue; |
| Int4 enableLeave; |
| |
| void sampleTexture(Vector4f &c, const Src &sampler, Vector4f &uvwq, Vector4f &dsx, Vector4f &dsy, Vector4f &offset, SamplerFunction function); |
| void sampleTexture(Vector4f &c, int samplerIndex, Vector4f &uvwq, Vector4f &dsx, Vector4f &dsy, Vector4f &offset, SamplerFunction function); |
| |
| // Raster operations |
| void clampColor(Vector4f oC[RENDERTARGETS]); |
| |
| Int4 enableMask(const Shader::Instruction *instruction); |
| |
| Vector4f fetchRegister(const Src &src, unsigned int offset = 0); |
| Vector4f readConstant(const Src &src, unsigned int offset = 0); |
| RValue<Pointer<Byte>> uniformAddress(int bufferIndex, unsigned int index); |
| RValue<Pointer<Byte>> uniformAddress(int bufferIndex, unsigned int index, Int& offset); |
| Int relativeAddress(const Shader::Parameter &var, int bufferIndex = -1); |
| |
| Float4 linearToSRGB(const Float4 &x); |
| |
| // Instructions |
| typedef Shader::Control Control; |
| |
| void M3X2(Vector4f &dst, Vector4f &src0, const Src &src1); |
| void M3X3(Vector4f &dst, Vector4f &src0, const Src &src1); |
| void M3X4(Vector4f &dst, Vector4f &src0, const Src &src1); |
| void M4X3(Vector4f &dst, Vector4f &src0, const Src &src1); |
| void M4X4(Vector4f &dst, Vector4f &src0, const Src &src1); |
| void TEXLD(Vector4f &dst, Vector4f &src0, const Src &src1, bool project, bool bias); |
| void TEXLDD(Vector4f &dst, Vector4f &src0, const Src &src1, Vector4f &src2, Vector4f &src3); |
| void TEXLDL(Vector4f &dst, Vector4f &src0, const Src &src1); |
| void TEXSIZE(Vector4f &dst, Float4 &lod, const Src &src1); |
| void TEXKILL(Int cMask[4], Vector4f &src, unsigned char mask); |
| void TEXOFFSET(Vector4f &dst, Vector4f &src0, const Src &src1, Vector4f &src2, bool bias); |
| void TEXLDL(Vector4f &dst, Vector4f &src0, const Src &src1, Vector4f &src2, bool bias); |
| void TEXELFETCH(Vector4f &dst, Vector4f &src, const Src&); |
| void TEXELFETCH(Vector4f &dst, Vector4f &src, const Src&, Vector4f &src2); |
| void TEXGRAD(Vector4f &dst, Vector4f &src, const Src&, Vector4f &src2, Vector4f &src3); |
| void TEXGRAD(Vector4f &dst, Vector4f &src, const Src&, Vector4f &src2, Vector4f &src3, Vector4f &src4); |
| void DISCARD(Int cMask[4], const Shader::Instruction *instruction); |
| void DFDX(Vector4f &dst, Vector4f &src); |
| void DFDY(Vector4f &dst, Vector4f &src); |
| void FWIDTH(Vector4f &dst, Vector4f &src); |
| void BREAK(); |
| void BREAKC(Vector4f &src0, Vector4f &src1, Control); |
| void BREAKP(const Src &predicateRegister); |
| void BREAK(Int4 &condition); |
| void CONTINUE(); |
| void TEST(); |
| void CALL(int labelIndex, int callSiteIndex); |
| void CALLNZ(int labelIndex, int callSiteIndex, const Src &src); |
| void CALLNZb(int labelIndex, int callSiteIndex, const Src &boolRegister); |
| void CALLNZp(int labelIndex, int callSiteIndex, const Src &predicateRegister); |
| void ELSE(); |
| void ENDIF(); |
| void ENDLOOP(); |
| void ENDREP(); |
| void ENDWHILE(); |
| void ENDSWITCH(); |
| void IF(const Src &src); |
| void IFb(const Src &boolRegister); |
| void IFp(const Src &predicateRegister); |
| void IFC(Vector4f &src0, Vector4f &src1, Control); |
| void IF(Int4 &condition); |
| void LABEL(int labelIndex); |
| void LOOP(const Src &integerRegister); |
| void REP(const Src &integerRegister); |
| void WHILE(const Src &temporaryRegister); |
| void SWITCH(); |
| void RET(); |
| void LEAVE(); |
| |
| int ifDepth; |
| int loopRepDepth; |
| int breakDepth; |
| int currentLabel; |
| bool whileTest; |
| |
| BasicBlock *ifFalseBlock[24 + 24]; |
| BasicBlock *loopRepTestBlock[4]; |
| BasicBlock *loopRepEndBlock[4]; |
| BasicBlock *labelBlock[2048]; |
| std::vector<BasicBlock*> callRetBlock[2048]; |
| BasicBlock *returnBlock; |
| bool isConditionalIf[24 + 24]; |
| }; |
| } |
| |
| #endif |