blob: fe9e092f5fbb45fce947df155646e4d35bbe4f85 [file] [log] [blame]
/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "src/gpu/GrShaderCaps.h"
#include "include/gpu/GrContextOptions.h"
////////////////////////////////////////////////////////////////////////////////////////////
#ifdef SK_ENABLE_DUMP_GPU
#include "src/utils/SkJSONWriter.h"
void GrShaderCaps::dumpJSON(SkJSONWriter* writer) const {
writer->beginObject();
writer->appendBool("Shader Derivative Support", fShaderDerivativeSupport);
writer->appendBool("Dst Read In Shader Support", fDstReadInShaderSupport);
writer->appendBool("Dual Source Blending Support", fDualSourceBlendingSupport);
writer->appendBool("Integer Support", fIntegerSupport);
writer->appendBool("Nonsquare Matrix Support", fNonsquareMatrixSupport);
writer->appendBool("Inverse Hyperbolic Support", fInverseHyperbolicSupport);
static const char* kAdvBlendEqInteractionStr[] = {
"Not Supported",
"Automatic",
"General Enable",
};
static_assert(0 == kNotSupported_AdvBlendEqInteraction);
static_assert(1 == kAutomatic_AdvBlendEqInteraction);
static_assert(2 == kGeneralEnable_AdvBlendEqInteraction);
static_assert(SK_ARRAY_COUNT(kAdvBlendEqInteractionStr) == kLast_AdvBlendEqInteraction + 1);
writer->appendBool("FB Fetch Support", fFBFetchSupport);
writer->appendBool("Uses precision modifiers", fUsesPrecisionModifiers);
writer->appendBool("Can use any() function", fCanUseAnyFunctionInShader);
writer->appendBool("Can use min() and abs() together", fCanUseMinAndAbsTogether);
writer->appendBool("Can use fract() for negative values", fCanUseFractForNegativeValues);
writer->appendBool("Must force negated atan param to float", fMustForceNegatedAtanParamToFloat);
writer->appendBool("Must force negated ldexp param to multiply",
fMustForceNegatedLdexpParamToMultiply);
writer->appendBool("Must do op between floor and abs", fMustDoOpBetweenFloorAndAbs);
writer->appendBool("Must use local out color for FBFetch", fRequiresLocalOutputColorForFBFetch);
writer->appendBool("Must obfuscate uniform color", fMustObfuscateUniformColor);
writer->appendBool("Must guard division even after explicit zero check",
fMustGuardDivisionEvenAfterExplicitZeroCheck);
writer->appendBool("Can use gl_FragCoord", fCanUseFragCoord);
writer->appendBool("Incomplete short int precision", fIncompleteShortIntPrecision);
writer->appendBool("Add and true to loops workaround", fAddAndTrueToLoopCondition);
writer->appendBool("Unfold short circuit as ternary", fUnfoldShortCircuitAsTernary);
writer->appendBool("Emulate abs(int) function", fEmulateAbsIntFunction);
writer->appendBool("Rewrite do while loops", fRewriteDoWhileLoops);
writer->appendBool("Rewrite switch statements", fRewriteSwitchStatements);
writer->appendBool("Rewrite pow with constant exponent", fRemovePowWithConstantExponent);
writer->appendBool("Must write to sk_FragColor [workaround]", fMustWriteToFragColor);
writer->appendBool("Don't add default precision statement for samplerExternalOES",
fNoDefaultPrecisionForExternalSamplers);
writer->appendBool("Rewrite matrix-vector multiply", fRewriteMatrixVectorMultiply);
writer->appendBool("Rewrite matrix equality comparisons", fRewriteMatrixComparisons);
writer->appendBool("Flat interpolation support", fFlatInterpolationSupport);
writer->appendBool("Prefer flat interpolation", fPreferFlatInterpolation);
writer->appendBool("No perspective interpolation support", fNoPerspectiveInterpolationSupport);
writer->appendBool("Sample mask support", fSampleMaskSupport);
writer->appendBool("External texture support", fExternalTextureSupport);
writer->appendBool("sk_VertexID support", fVertexIDSupport);
writer->appendBool("Infinity support", fInfinitySupport);
writer->appendBool("Non-constant array index support", fNonconstantArrayIndexSupport);
writer->appendBool("Bit manipulation support", fBitManipulationSupport);
writer->appendBool("float == fp32", fFloatIs32Bits);
writer->appendBool("half == fp32", fHalfIs32Bits);
writer->appendBool("Has poor fragment precision", fHasLowFragmentPrecision);
writer->appendBool("Color space math needs float", fColorSpaceMathNeedsFloat);
writer->appendBool("Builtin fma() support", fBuiltinFMASupport);
writer->appendBool("Builtin determinant() support", fBuiltinDeterminantSupport);
writer->appendBool("Use node pools", fUseNodePools);
writer->appendS32("Max FS Samplers", fMaxFragmentSamplers);
writer->appendS32("Max Tessellation Segments", fMaxTessellationSegments);
writer->appendString("Advanced blend equation interaction",
kAdvBlendEqInteractionStr[fAdvBlendEqInteraction]);
writer->endObject();
}
#else
void GrShaderCaps::dumpJSON(SkJSONWriter* writer) const { }
#endif
void GrShaderCaps::applyOptionsOverrides(const GrContextOptions& options) {
if (options.fDisableDriverCorrectnessWorkarounds) {
SkASSERT(fCanUseAnyFunctionInShader);
SkASSERT(fCanUseMinAndAbsTogether);
SkASSERT(fCanUseFractForNegativeValues);
SkASSERT(!fMustForceNegatedAtanParamToFloat);
SkASSERT(!fMustForceNegatedLdexpParamToMultiply);
SkASSERT(!fAtan2ImplementedAsAtanYOverX);
SkASSERT(!fMustDoOpBetweenFloorAndAbs);
SkASSERT(!fRequiresLocalOutputColorForFBFetch);
SkASSERT(!fMustObfuscateUniformColor);
SkASSERT(!fMustGuardDivisionEvenAfterExplicitZeroCheck);
SkASSERT(fCanUseFragCoord);
SkASSERT(!fIncompleteShortIntPrecision);
SkASSERT(!fAddAndTrueToLoopCondition);
SkASSERT(!fUnfoldShortCircuitAsTernary);
SkASSERT(!fEmulateAbsIntFunction);
SkASSERT(!fRewriteDoWhileLoops);
SkASSERT(!fRewriteSwitchStatements);
SkASSERT(!fRemovePowWithConstantExponent);
SkASSERT(!fMustWriteToFragColor);
SkASSERT(!fNoDefaultPrecisionForExternalSamplers);
SkASSERT(!fRewriteMatrixVectorMultiply);
SkASSERT(!fRewriteMatrixComparisons);
}
if (!options.fEnableExperimentalHardwareTessellation) {
fMaxTessellationSegments = 0;
}
if (options.fReducedShaderVariations) {
fReducedShaderMode = true;
}
#if GR_TEST_UTILS
if (options.fSuppressDualSourceBlending) {
fDualSourceBlendingSupport = false;
}
if (options.fSuppressFramebufferFetch) {
fFBFetchSupport = false;
}
if (options.fMaxTessellationSegmentsOverride > 0) {
fMaxTessellationSegments = std::min(options.fMaxTessellationSegmentsOverride,
fMaxTessellationSegments);
}
#endif
}