| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "src/sksl/SkSLUtil.h" |
| |
| #include "src/sksl/SkSLStringStream.h" |
| |
| #if !defined(SKSL_STANDALONE) & SK_SUPPORT_GPU |
| #include "include/gpu/GrContextOptions.h" |
| #endif |
| |
| #ifndef __STDC_FORMAT_MACROS |
| #define __STDC_FORMAT_MACROS |
| #endif |
| |
| namespace SkSL { |
| |
| #if defined(SKSL_STANDALONE) || !SK_SUPPORT_GPU |
| StandaloneShaderCaps standaloneCaps; |
| #endif |
| |
| void sksl_abort() { |
| #ifdef SKSL_STANDALONE |
| abort(); |
| #else |
| sk_abort_no_print(); |
| exit(1); |
| #endif |
| } |
| |
| void write_stringstream(const StringStream& s, OutputStream& out) { |
| out.write(s.str().c_str(), s.str().size()); |
| } |
| |
| bool is_assignment(Token::Kind op) { |
| switch (op) { |
| case Token::EQ: // fall through |
| case Token::PLUSEQ: // fall through |
| case Token::MINUSEQ: // fall through |
| case Token::STAREQ: // fall through |
| case Token::SLASHEQ: // fall through |
| case Token::PERCENTEQ: // fall through |
| case Token::SHLEQ: // fall through |
| case Token::SHREQ: // fall through |
| case Token::BITWISEOREQ: // fall through |
| case Token::BITWISEXOREQ: // fall through |
| case Token::BITWISEANDEQ: // fall through |
| case Token::LOGICALOREQ: // fall through |
| case Token::LOGICALXOREQ: // fall through |
| case Token::LOGICALANDEQ: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| Token::Kind remove_assignment(Token::Kind op) { |
| switch (op) { |
| case Token::PLUSEQ: return Token::PLUS; |
| case Token::MINUSEQ: return Token::MINUS; |
| case Token::STAREQ: return Token::STAR; |
| case Token::SLASHEQ: return Token::SLASH; |
| case Token::PERCENTEQ: return Token::PERCENT; |
| case Token::SHLEQ: return Token::SHL; |
| case Token::SHREQ: return Token::SHR; |
| case Token::BITWISEOREQ: return Token::BITWISEOR; |
| case Token::BITWISEXOREQ: return Token::BITWISEXOR; |
| case Token::BITWISEANDEQ: return Token::BITWISEAND; |
| case Token::LOGICALOREQ: return Token::LOGICALOR; |
| case Token::LOGICALXOREQ: return Token::LOGICALXOR; |
| case Token::LOGICALANDEQ: return Token::LOGICALAND; |
| default: return op; |
| } |
| } |
| |
| #if !defined(SKSL_STANDALONE) & SK_SUPPORT_GPU |
| sk_sp<GrShaderCaps> ShaderCapsFactory::Default() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fShaderDerivativeSupport = true; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::Version450Core() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 450 core"; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::Version110() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 110"; |
| result->fGLSLGeneration = GrGLSLGeneration::k110_GrGLSLGeneration; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::UsesPrecisionModifiers() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fUsesPrecisionModifiers = true; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::CannotUseMinAndAbsTogether() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fCanUseMinAndAbsTogether = false; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::CannotUseFractForNegativeValues() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fCanUseFractForNegativeValues = false; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::MustForceNegatedAtanParamToFloat() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fMustForceNegatedAtanParamToFloat = true; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::ShaderDerivativeExtensionString() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fShaderDerivativeSupport = true; |
| result->fShaderDerivativeExtensionString = "GL_OES_standard_derivatives"; |
| result->fUsesPrecisionModifiers = true; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::FragCoordsOld() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 110"; |
| result->fGLSLGeneration = GrGLSLGeneration::k110_GrGLSLGeneration; |
| result->fFragCoordConventionsExtensionString = "GL_ARB_fragment_coord_conventions"; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::FragCoordsNew() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fFragCoordConventionsExtensionString = "GL_ARB_fragment_coord_conventions"; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::GeometryShaderSupport() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fGeometryShaderSupport = true; |
| result->fGSInvocationsSupport = true; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::NoGSInvocationsSupport() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fGeometryShaderSupport = true; |
| result->fGSInvocationsSupport = false; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::GeometryShaderExtensionString() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 310es"; |
| result->fGeometryShaderSupport = true; |
| result->fGeometryShaderExtensionString = "GL_EXT_geometry_shader"; |
| result->fGSInvocationsSupport = true; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::GSInvocationsExtensionString() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fGeometryShaderSupport = true; |
| result->fGSInvocationsSupport = true; |
| result->fGSInvocationsExtensionString = "GL_ARB_gpu_shader5"; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::VariousCaps() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fExternalTextureSupport = true; |
| result->fFBFetchSupport = false; |
| result->fCanUseAnyFunctionInShader = false; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::CannotUseFragCoord() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fCanUseFragCoord = false; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::IncompleteShortIntPrecision() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 310es"; |
| result->fUsesPrecisionModifiers = true; |
| result->fIncompleteShortIntPrecision = true; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::AddAndTrueToLoopCondition() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fAddAndTrueToLoopCondition = true; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::UnfoldShortCircuitAsTernary() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fUnfoldShortCircuitAsTernary = true; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::EmulateAbsIntFunction() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fEmulateAbsIntFunction = true; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::RewriteDoWhileLoops() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fRewriteDoWhileLoops = true; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::RemovePowWithConstantExponent() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fRemovePowWithConstantExponent = true; |
| return result; |
| } |
| |
| sk_sp<GrShaderCaps> ShaderCapsFactory::SampleMaskSupport() { |
| sk_sp<GrShaderCaps> result = Default(); |
| result->fSampleMaskSupport = true; |
| return result; |
| } |
| #endif |
| |
| } // namespace |