| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SKSL_UTIL |
| #define SKSL_UTIL |
| |
| #include <cstdarg> |
| #include <memory> |
| #include "stdlib.h" |
| #include "string.h" |
| #include "assert.h" |
| #include "SkSLString.h" |
| #include "SkSLStringStream.h" |
| |
| #ifndef SKSL_STANDALONE |
| #include "GrContextOptions.h" |
| #include "GrShaderCaps.h" |
| #endif |
| |
| #ifdef SKSL_STANDALONE |
| #if defined(_WIN32) || defined(__SYMBIAN32__) |
| #define SKSL_BUILD_FOR_WIN |
| #endif |
| #else |
| #ifdef SK_BUILD_FOR_WIN |
| #define SKSL_BUILD_FOR_WIN |
| #endif // SK_BUILD_FOR_WIN |
| #endif // SKSL_STANDALONE |
| |
| namespace SkSL { |
| |
| #ifdef SKSL_STANDALONE |
| |
| // we're being compiled standalone, so we don't have access to caps... |
| enum GrGLSLGeneration { |
| k110_GrGLSLGeneration, |
| k130_GrGLSLGeneration, |
| k140_GrGLSLGeneration, |
| k150_GrGLSLGeneration, |
| k330_GrGLSLGeneration, |
| k400_GrGLSLGeneration, |
| k420_GrGLSLGeneration, |
| k310es_GrGLSLGeneration, |
| k320es_GrGLSLGeneration, |
| }; |
| |
| #define SKSL_CAPS_CLASS StandaloneShaderCaps |
| class StandaloneShaderCaps { |
| public: |
| GrGLSLGeneration generation() const { |
| return k400_GrGLSLGeneration; |
| } |
| |
| bool canUseMinAndAbsTogether() const { |
| return true; |
| } |
| |
| bool mustForceNegatedAtanParamToFloat() const { |
| return false; |
| } |
| |
| bool shaderDerivativeSupport() const { |
| return true; |
| } |
| |
| bool usesPrecisionModifiers() const { |
| return true; |
| } |
| |
| bool mustDeclareFragmentShaderOutput() const { |
| return true; |
| } |
| |
| bool fbFetchSupport() const { |
| return true; |
| } |
| |
| bool fbFetchNeedsCustomOutput() const { |
| return false; |
| } |
| |
| bool bindlessTextureSupport() const { |
| return false; |
| } |
| |
| bool dropsTileOnZeroDivide() const { |
| return false; |
| } |
| |
| bool flatInterpolationSupport() const { |
| return true; |
| } |
| |
| bool noperspectiveInterpolationSupport() const { |
| return true; |
| } |
| |
| bool multisampleInterpolationSupport() const { |
| return true; |
| } |
| |
| bool sampleVariablesSupport() const { |
| return true; |
| } |
| |
| bool sampleMaskOverrideCoverageSupport() const { |
| return true; |
| } |
| |
| bool externalTextureSupport() const { |
| return true; |
| } |
| |
| bool texelFetchSupport() const { |
| return true; |
| } |
| |
| bool imageLoadStoreSupport() const { |
| return true; |
| } |
| |
| bool mustEnableAdvBlendEqs() const { |
| return false; |
| } |
| |
| bool mustEnableSpecificAdvBlendEqs() const { |
| return false; |
| } |
| |
| bool canUseAnyFunctionInShader() const { |
| return false; |
| } |
| |
| bool floatPrecisionVaries() const { |
| return false; |
| } |
| |
| bool integerSupport() const { |
| return false; |
| } |
| |
| const char* shaderDerivativeExtensionString() const { |
| return nullptr; |
| } |
| |
| const char* fragCoordConventionsExtensionString() const { |
| return nullptr; |
| } |
| |
| const char* imageLoadStoreExtensionString() const { |
| return nullptr; |
| } |
| |
| const char* gsInvocationsExtensionString() const { |
| return nullptr; |
| } |
| |
| const char* versionDeclString() const { |
| return ""; |
| } |
| |
| bool gsInvocationsSupport() const { |
| return true; |
| } |
| |
| bool canUseFractForNegativeValues() const { |
| return true; |
| } |
| }; |
| |
| extern StandaloneShaderCaps standaloneCaps; |
| |
| #else |
| |
| #define SKSL_CAPS_CLASS GrShaderCaps |
| // Various sets of caps for use in tests |
| class ShaderCapsFactory { |
| public: |
| static sk_sp<GrShaderCaps> Default() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fShaderDerivativeSupport = true; |
| result->fGSInvocationsSupport = true; |
| return result; |
| } |
| |
| static sk_sp<GrShaderCaps> Version450Core() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 450 core"; |
| return result; |
| } |
| |
| static sk_sp<GrShaderCaps> Version110() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 110"; |
| result->fGLSLGeneration = GrGLSLGeneration::k110_GrGLSLGeneration; |
| return result; |
| } |
| |
| static sk_sp<GrShaderCaps> UsesPrecisionModifiers() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fUsesPrecisionModifiers = true; |
| return result; |
| } |
| |
| static sk_sp<GrShaderCaps> CannotUseMinAndAbsTogether() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fCanUseMinAndAbsTogether = false; |
| return result; |
| } |
| |
| static sk_sp<GrShaderCaps> CannotUseFractForNegativeValues() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fCanUseFractForNegativeValues = false; |
| return result; |
| } |
| |
| static sk_sp<GrShaderCaps> MustForceNegatedAtanParamToFloat() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fMustForceNegatedAtanParamToFloat = true; |
| return result; |
| } |
| |
| static sk_sp<GrShaderCaps> 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; |
| } |
| |
| static sk_sp<GrShaderCaps> 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; |
| } |
| |
| static sk_sp<GrShaderCaps> FragCoordsNew() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fFragCoordConventionsExtensionString = "GL_ARB_fragment_coord_conventions"; |
| return result; |
| } |
| |
| static sk_sp<GrShaderCaps> NoGSInvocationsSupport() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fGeometryShaderSupport = true; |
| result->fGSInvocationsSupport = false; |
| return result; |
| } |
| |
| static sk_sp<GrShaderCaps> 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; |
| } |
| |
| static sk_sp<GrShaderCaps> VariousCaps() { |
| sk_sp<GrShaderCaps> result = sk_make_sp<GrShaderCaps>(GrContextOptions()); |
| result->fVersionDeclString = "#version 400"; |
| result->fExternalTextureSupport = true; |
| result->fFBFetchSupport = false; |
| result->fDropsTileOnZeroDivide = true; |
| result->fTexelFetchSupport = true; |
| result->fCanUseAnyFunctionInShader = false; |
| return result; |
| } |
| }; |
| #endif |
| |
| void write_stringstream(const StringStream& d, OutputStream& out); |
| |
| #if _MSC_VER |
| #define NORETURN __declspec(noreturn) |
| #else |
| #define NORETURN __attribute__((__noreturn__)) |
| #endif |
| |
| NORETURN void sksl_abort(); |
| |
| } // namespace |
| |
| #ifdef SKSL_STANDALONE |
| #define ASSERT(x) (void)((x) || (ABORT("failed assert(%s): %s:%d\n", #x, __FILE__, __LINE__), 0)) |
| #define ASSERT_RESULT(x) ASSERT(x) |
| #define SKSL_DEBUGCODE(x) x |
| #else |
| #define ASSERT SkASSERT |
| #define ASSERT_RESULT(x) SkAssertResult(x) |
| #define SKSL_DEBUGCODE(x) SkDEBUGCODE(x) |
| #endif |
| |
| #define SKSL_WARN_UNUSED_RESULT __attribute__((warn_unused_result)) |
| |
| #if defined(__clang__) || defined(__GNUC__) |
| #define SKSL_PRINTF_LIKE(A, B) __attribute__((format(printf, (A), (B)))) |
| #else |
| #define SKSL_PRINTF_LIKE(A, B) |
| #endif |
| |
| #define ABORT(...) (printf(__VA_ARGS__), sksl_abort()) |
| |
| #endif |