ethannicholas | b3058bd | 2016-07-01 08:22:01 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "SkSLCompiler.h" |
| 9 | |
| 10 | #include <fstream> |
| 11 | #include <streambuf> |
| 12 | |
| 13 | #include "SkSLIRGenerator.h" |
| 14 | #include "SkSLParser.h" |
| 15 | #include "SkSLSPIRVCodeGenerator.h" |
| 16 | #include "ir/SkSLExpression.h" |
| 17 | #include "ir/SkSLIntLiteral.h" |
| 18 | #include "ir/SkSLSymbolTable.h" |
| 19 | #include "ir/SkSLVarDeclaration.h" |
| 20 | #include "SkMutex.h" |
| 21 | |
| 22 | #define STRINGIFY(x) #x |
| 23 | |
| 24 | // include the built-in shader symbols as static strings |
| 25 | |
| 26 | static std::string SKSL_INCLUDE = |
| 27 | #include "sksl.include" |
| 28 | ; |
| 29 | |
| 30 | static std::string SKSL_VERT_INCLUDE = |
| 31 | #include "sksl_vert.include" |
| 32 | ; |
| 33 | |
| 34 | static std::string SKSL_FRAG_INCLUDE = |
| 35 | #include "sksl_frag.include" |
| 36 | ; |
| 37 | |
| 38 | namespace SkSL { |
| 39 | |
| 40 | Compiler::Compiler() |
| 41 | : fErrorCount(0) { |
| 42 | auto types = std::shared_ptr<SymbolTable>(new SymbolTable(*this)); |
| 43 | auto symbols = std::shared_ptr<SymbolTable>(new SymbolTable(types, *this)); |
ethannicholas | d598f79 | 2016-07-25 10:08:54 -0700 | [diff] [blame] | 44 | fIRGenerator = new IRGenerator(&fContext, symbols, *this); |
ethannicholas | b3058bd | 2016-07-01 08:22:01 -0700 | [diff] [blame] | 45 | fTypes = types; |
ethannicholas | d598f79 | 2016-07-25 10:08:54 -0700 | [diff] [blame] | 46 | #define ADD_TYPE(t) types->addWithoutOwnership(fContext.f ## t ## _Type->fName, \ |
| 47 | fContext.f ## t ## _Type.get()) |
ethannicholas | b3058bd | 2016-07-01 08:22:01 -0700 | [diff] [blame] | 48 | ADD_TYPE(Void); |
| 49 | ADD_TYPE(Float); |
| 50 | ADD_TYPE(Vec2); |
| 51 | ADD_TYPE(Vec3); |
| 52 | ADD_TYPE(Vec4); |
| 53 | ADD_TYPE(Double); |
| 54 | ADD_TYPE(DVec2); |
| 55 | ADD_TYPE(DVec3); |
| 56 | ADD_TYPE(DVec4); |
| 57 | ADD_TYPE(Int); |
| 58 | ADD_TYPE(IVec2); |
| 59 | ADD_TYPE(IVec3); |
| 60 | ADD_TYPE(IVec4); |
| 61 | ADD_TYPE(UInt); |
| 62 | ADD_TYPE(UVec2); |
| 63 | ADD_TYPE(UVec3); |
| 64 | ADD_TYPE(UVec4); |
| 65 | ADD_TYPE(Bool); |
| 66 | ADD_TYPE(BVec2); |
| 67 | ADD_TYPE(BVec3); |
| 68 | ADD_TYPE(BVec4); |
| 69 | ADD_TYPE(Mat2x2); |
ethannicholas | f789b38 | 2016-08-03 12:43:36 -0700 | [diff] [blame] | 70 | types->addWithoutOwnership("mat2x2", fContext.fMat2x2_Type.get()); |
ethannicholas | b3058bd | 2016-07-01 08:22:01 -0700 | [diff] [blame] | 71 | ADD_TYPE(Mat2x3); |
| 72 | ADD_TYPE(Mat2x4); |
| 73 | ADD_TYPE(Mat3x2); |
| 74 | ADD_TYPE(Mat3x3); |
ethannicholas | f789b38 | 2016-08-03 12:43:36 -0700 | [diff] [blame] | 75 | types->addWithoutOwnership("mat3x3", fContext.fMat3x3_Type.get()); |
ethannicholas | b3058bd | 2016-07-01 08:22:01 -0700 | [diff] [blame] | 76 | ADD_TYPE(Mat3x4); |
| 77 | ADD_TYPE(Mat4x2); |
| 78 | ADD_TYPE(Mat4x3); |
| 79 | ADD_TYPE(Mat4x4); |
ethannicholas | f789b38 | 2016-08-03 12:43:36 -0700 | [diff] [blame] | 80 | types->addWithoutOwnership("mat4x4", fContext.fMat4x4_Type.get()); |
ethannicholas | b3058bd | 2016-07-01 08:22:01 -0700 | [diff] [blame] | 81 | ADD_TYPE(GenType); |
| 82 | ADD_TYPE(GenDType); |
| 83 | ADD_TYPE(GenIType); |
| 84 | ADD_TYPE(GenUType); |
| 85 | ADD_TYPE(GenBType); |
| 86 | ADD_TYPE(Mat); |
| 87 | ADD_TYPE(Vec); |
| 88 | ADD_TYPE(GVec); |
| 89 | ADD_TYPE(GVec2); |
| 90 | ADD_TYPE(GVec3); |
| 91 | ADD_TYPE(GVec4); |
| 92 | ADD_TYPE(DVec); |
| 93 | ADD_TYPE(IVec); |
| 94 | ADD_TYPE(UVec); |
| 95 | ADD_TYPE(BVec); |
| 96 | |
| 97 | ADD_TYPE(Sampler1D); |
| 98 | ADD_TYPE(Sampler2D); |
| 99 | ADD_TYPE(Sampler3D); |
| 100 | ADD_TYPE(SamplerCube); |
| 101 | ADD_TYPE(Sampler2DRect); |
| 102 | ADD_TYPE(Sampler1DArray); |
| 103 | ADD_TYPE(Sampler2DArray); |
| 104 | ADD_TYPE(SamplerCubeArray); |
| 105 | ADD_TYPE(SamplerBuffer); |
| 106 | ADD_TYPE(Sampler2DMS); |
| 107 | ADD_TYPE(Sampler2DMSArray); |
| 108 | |
| 109 | ADD_TYPE(GSampler1D); |
| 110 | ADD_TYPE(GSampler2D); |
| 111 | ADD_TYPE(GSampler3D); |
| 112 | ADD_TYPE(GSamplerCube); |
| 113 | ADD_TYPE(GSampler2DRect); |
| 114 | ADD_TYPE(GSampler1DArray); |
| 115 | ADD_TYPE(GSampler2DArray); |
| 116 | ADD_TYPE(GSamplerCubeArray); |
| 117 | ADD_TYPE(GSamplerBuffer); |
| 118 | ADD_TYPE(GSampler2DMS); |
| 119 | ADD_TYPE(GSampler2DMSArray); |
| 120 | |
| 121 | ADD_TYPE(Sampler1DShadow); |
| 122 | ADD_TYPE(Sampler2DShadow); |
| 123 | ADD_TYPE(SamplerCubeShadow); |
| 124 | ADD_TYPE(Sampler2DRectShadow); |
| 125 | ADD_TYPE(Sampler1DArrayShadow); |
| 126 | ADD_TYPE(Sampler2DArrayShadow); |
| 127 | ADD_TYPE(SamplerCubeArrayShadow); |
| 128 | ADD_TYPE(GSampler2DArrayShadow); |
| 129 | ADD_TYPE(GSamplerCubeArrayShadow); |
| 130 | |
fmalita | d214d6a | 2016-09-30 08:05:24 -0700 | [diff] [blame^] | 131 | std::vector<std::unique_ptr<ProgramElement>> ignored; |
| 132 | this->internalConvertProgram(SKSL_INCLUDE, &ignored); |
ethannicholas | b3058bd | 2016-07-01 08:22:01 -0700 | [diff] [blame] | 133 | ASSERT(!fErrorCount); |
| 134 | } |
| 135 | |
| 136 | Compiler::~Compiler() { |
| 137 | delete fIRGenerator; |
| 138 | } |
| 139 | |
| 140 | void Compiler::internalConvertProgram(std::string text, |
| 141 | std::vector<std::unique_ptr<ProgramElement>>* result) { |
| 142 | Parser parser(text, *fTypes, *this); |
| 143 | std::vector<std::unique_ptr<ASTDeclaration>> parsed = parser.file(); |
| 144 | if (fErrorCount) { |
| 145 | return; |
| 146 | } |
| 147 | for (size_t i = 0; i < parsed.size(); i++) { |
| 148 | ASTDeclaration& decl = *parsed[i]; |
| 149 | switch (decl.fKind) { |
| 150 | case ASTDeclaration::kVar_Kind: { |
ethannicholas | 14fe8cc | 2016-09-07 13:37:16 -0700 | [diff] [blame] | 151 | std::unique_ptr<VarDeclarations> s = fIRGenerator->convertVarDeclarations( |
| 152 | (ASTVarDeclarations&) decl, |
ethannicholas | b3058bd | 2016-07-01 08:22:01 -0700 | [diff] [blame] | 153 | Variable::kGlobal_Storage); |
| 154 | if (s) { |
| 155 | result->push_back(std::move(s)); |
| 156 | } |
| 157 | break; |
| 158 | } |
| 159 | case ASTDeclaration::kFunction_Kind: { |
| 160 | std::unique_ptr<FunctionDefinition> f = fIRGenerator->convertFunction( |
| 161 | (ASTFunction&) decl); |
| 162 | if (f) { |
| 163 | result->push_back(std::move(f)); |
| 164 | } |
| 165 | break; |
| 166 | } |
| 167 | case ASTDeclaration::kInterfaceBlock_Kind: { |
| 168 | std::unique_ptr<InterfaceBlock> i = fIRGenerator->convertInterfaceBlock( |
| 169 | (ASTInterfaceBlock&) decl); |
| 170 | if (i) { |
| 171 | result->push_back(std::move(i)); |
| 172 | } |
| 173 | break; |
| 174 | } |
| 175 | case ASTDeclaration::kExtension_Kind: { |
| 176 | std::unique_ptr<Extension> e = fIRGenerator->convertExtension((ASTExtension&) decl); |
| 177 | if (e) { |
| 178 | result->push_back(std::move(e)); |
| 179 | } |
| 180 | break; |
| 181 | } |
| 182 | default: |
| 183 | ABORT("unsupported declaration: %s\n", decl.description().c_str()); |
| 184 | } |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | std::unique_ptr<Program> Compiler::convertProgram(Program::Kind kind, std::string text) { |
| 189 | fErrorText = ""; |
| 190 | fErrorCount = 0; |
| 191 | fIRGenerator->pushSymbolTable(); |
ethannicholas | d598f79 | 2016-07-25 10:08:54 -0700 | [diff] [blame] | 192 | std::vector<std::unique_ptr<ProgramElement>> elements; |
ethannicholas | b3058bd | 2016-07-01 08:22:01 -0700 | [diff] [blame] | 193 | switch (kind) { |
| 194 | case Program::kVertex_Kind: |
fmalita | d214d6a | 2016-09-30 08:05:24 -0700 | [diff] [blame^] | 195 | this->internalConvertProgram(SKSL_VERT_INCLUDE, &elements); |
ethannicholas | b3058bd | 2016-07-01 08:22:01 -0700 | [diff] [blame] | 196 | break; |
| 197 | case Program::kFragment_Kind: |
fmalita | d214d6a | 2016-09-30 08:05:24 -0700 | [diff] [blame^] | 198 | this->internalConvertProgram(SKSL_FRAG_INCLUDE, &elements); |
ethannicholas | b3058bd | 2016-07-01 08:22:01 -0700 | [diff] [blame] | 199 | break; |
| 200 | } |
fmalita | d214d6a | 2016-09-30 08:05:24 -0700 | [diff] [blame^] | 201 | this->internalConvertProgram(text, &elements); |
| 202 | auto result = std::unique_ptr<Program>(new Program(kind, std::move(elements), |
ethannicholas | d598f79 | 2016-07-25 10:08:54 -0700 | [diff] [blame] | 203 | fIRGenerator->fSymbolTable));; |
ethannicholas | b3058bd | 2016-07-01 08:22:01 -0700 | [diff] [blame] | 204 | fIRGenerator->popSymbolTable(); |
| 205 | this->writeErrorCount(); |
ethannicholas | d598f79 | 2016-07-25 10:08:54 -0700 | [diff] [blame] | 206 | return result; |
ethannicholas | b3058bd | 2016-07-01 08:22:01 -0700 | [diff] [blame] | 207 | } |
| 208 | |
| 209 | void Compiler::error(Position position, std::string msg) { |
| 210 | fErrorCount++; |
| 211 | fErrorText += "error: " + position.description() + ": " + msg.c_str() + "\n"; |
| 212 | } |
| 213 | |
| 214 | std::string Compiler::errorText() { |
| 215 | std::string result = fErrorText; |
| 216 | return result; |
| 217 | } |
| 218 | |
| 219 | void Compiler::writeErrorCount() { |
| 220 | if (fErrorCount) { |
| 221 | fErrorText += to_string(fErrorCount) + " error"; |
| 222 | if (fErrorCount > 1) { |
| 223 | fErrorText += "s"; |
| 224 | } |
| 225 | fErrorText += "\n"; |
| 226 | } |
| 227 | } |
| 228 | |
ethannicholas | f789b38 | 2016-08-03 12:43:36 -0700 | [diff] [blame] | 229 | bool Compiler::toSPIRV(Program::Kind kind, const std::string& text, std::ostream& out) { |
ethannicholas | b3058bd | 2016-07-01 08:22:01 -0700 | [diff] [blame] | 230 | auto program = this->convertProgram(kind, text); |
| 231 | if (fErrorCount == 0) { |
ethannicholas | d598f79 | 2016-07-25 10:08:54 -0700 | [diff] [blame] | 232 | SkSL::SPIRVCodeGenerator cg(&fContext); |
ethannicholas | b3058bd | 2016-07-01 08:22:01 -0700 | [diff] [blame] | 233 | cg.generateCode(*program.get(), out); |
| 234 | ASSERT(!out.rdstate()); |
| 235 | } |
| 236 | return fErrorCount == 0; |
| 237 | } |
| 238 | |
ethannicholas | f789b38 | 2016-08-03 12:43:36 -0700 | [diff] [blame] | 239 | bool Compiler::toSPIRV(Program::Kind kind, const std::string& text, std::string* out) { |
ethannicholas | b3058bd | 2016-07-01 08:22:01 -0700 | [diff] [blame] | 240 | std::stringstream buffer; |
| 241 | bool result = this->toSPIRV(kind, text, buffer); |
| 242 | if (result) { |
| 243 | *out = buffer.str(); |
| 244 | } |
ethannicholas | f789b38 | 2016-08-03 12:43:36 -0700 | [diff] [blame] | 245 | return result; |
| 246 | } |
| 247 | |
| 248 | bool Compiler::toGLSL(Program::Kind kind, const std::string& text, GLCaps caps, |
| 249 | std::ostream& out) { |
| 250 | auto program = this->convertProgram(kind, text); |
| 251 | if (fErrorCount == 0) { |
| 252 | SkSL::GLSLCodeGenerator cg(&fContext, caps); |
| 253 | cg.generateCode(*program.get(), out); |
| 254 | ASSERT(!out.rdstate()); |
| 255 | } |
ethannicholas | b3058bd | 2016-07-01 08:22:01 -0700 | [diff] [blame] | 256 | return fErrorCount == 0; |
| 257 | } |
| 258 | |
ethannicholas | f789b38 | 2016-08-03 12:43:36 -0700 | [diff] [blame] | 259 | bool Compiler::toGLSL(Program::Kind kind, const std::string& text, GLCaps caps, |
| 260 | std::string* out) { |
| 261 | std::stringstream buffer; |
| 262 | bool result = this->toGLSL(kind, text, caps, buffer); |
| 263 | if (result) { |
| 264 | *out = buffer.str(); |
| 265 | } |
| 266 | return result; |
| 267 | } |
| 268 | |
ethannicholas | b3058bd | 2016-07-01 08:22:01 -0700 | [diff] [blame] | 269 | } // namespace |