1 /*
2 * Copyright 2012 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
9 #include "src/gpu/ganesh/GrShaderCaps.h"
10
11 #include "include/gpu/ganesh/GrContextOptions.h"
12
13 ////////////////////////////////////////////////////////////////////////////////////////////
14
15 #ifdef SK_ENABLE_DUMP_GPU
16 #include "src/utils/SkJSONWriter.h"
17
dumpJSON(SkJSONWriter * writer) const18 void GrShaderCaps::dumpJSON(SkJSONWriter* writer) const {
19 writer->beginObject();
20
21 writer->appendBool("Shader Derivative Support", fShaderDerivativeSupport);
22 writer->appendBool("Dst Read In Shader Support", fDstReadInShaderSupport);
23 writer->appendBool("Dual Source Blending Support", fDualSourceBlendingSupport);
24 writer->appendBool("Integer Support", fIntegerSupport);
25 writer->appendBool("Nonsquare Matrix Support", fNonsquareMatrixSupport);
26 writer->appendBool("Inverse Hyperbolic Support", fInverseHyperbolicSupport);
27
28 static const char* kAdvBlendEqInteractionStr[] = {
29 "Not Supported",
30 "Automatic",
31 "General Enable",
32 };
33 static_assert(0 == kNotSupported_AdvBlendEqInteraction);
34 static_assert(1 == kAutomatic_AdvBlendEqInteraction);
35 static_assert(2 == kGeneralEnable_AdvBlendEqInteraction);
36 static_assert(std::size(kAdvBlendEqInteractionStr) == kLast_AdvBlendEqInteraction + 1);
37
38 writer->appendBool("FB Fetch Support", fFBFetchSupport);
39 writer->appendBool("Uses precision modifiers", fUsesPrecisionModifiers);
40 writer->appendBool("Can use void-typed expressions in a sequence expression",
41 fCanUseVoidInSequenceExpressions);
42 writer->appendBool("Can use min() and abs() together", fCanUseMinAndAbsTogether);
43 writer->appendBool("Can use fract() for negative values", fCanUseFractForNegativeValues);
44 writer->appendBool("Must force negated atan param to float", fMustForceNegatedAtanParamToFloat);
45 writer->appendBool("Must force negated ldexp param to multiply",
46 fMustForceNegatedLdexpParamToMultiply);
47 writer->appendBool("Must do op between floor and abs", fMustDoOpBetweenFloorAndAbs);
48 writer->appendBool("Must use local out color for FBFetch", fRequiresLocalOutputColorForFBFetch);
49 writer->appendBool("Must obfuscate uniform color", fMustObfuscateUniformColor);
50 writer->appendBool("Must guard division even after explicit zero check",
51 fMustGuardDivisionEvenAfterExplicitZeroCheck);
52 writer->appendBool("Can use gl_FragCoord", fCanUseFragCoord);
53 writer->appendBool("Add and true to loops workaround", fAddAndTrueToLoopCondition);
54 writer->appendBool("Unfold short circuit as ternary", fUnfoldShortCircuitAsTernary);
55 writer->appendBool("Emulate abs(int) function", fEmulateAbsIntFunction);
56 writer->appendBool("Rewrite do while loops", fRewriteDoWhileLoops);
57 writer->appendBool("Rewrite switch statements", fRewriteSwitchStatements);
58 writer->appendBool("Rewrite pow with constant exponent", fRemovePowWithConstantExponent);
59 writer->appendBool("Must write to sk_FragColor [workaround]", fMustWriteToFragColor);
60 writer->appendBool("Don't add default precision statement for samplerExternalOES",
61 fNoDefaultPrecisionForExternalSamplers);
62 writer->appendBool("Rewrite matrix-vector multiply", fRewriteMatrixVectorMultiply);
63 writer->appendBool("Rewrite matrix equality comparisons", fRewriteMatrixComparisons);
64 writer->appendBool("Rounding fix required for Perlin noise", fPerlinNoiseRoundingFix);
65 writer->appendBool("Must declare fragment front-facing", fMustDeclareFragmentFrontFacing);
66 writer->appendBool("Flat interpolation support", fFlatInterpolationSupport);
67 writer->appendBool("Prefer flat interpolation", fPreferFlatInterpolation);
68 writer->appendBool("No perspective interpolation support", fNoPerspectiveInterpolationSupport);
69 writer->appendBool("Sample mask support", fSampleMaskSupport);
70 writer->appendBool("External texture support", fExternalTextureSupport);
71 writer->appendBool("sk_VertexID support", fVertexIDSupport);
72 writer->appendBool("Infinity support", fInfinitySupport);
73 writer->appendBool("Non-constant array index support", fNonconstantArrayIndexSupport);
74 writer->appendBool("Bit manipulation support", fBitManipulationSupport);
75 writer->appendBool("float == fp32", fFloatIs32Bits);
76 writer->appendBool("half == fp32", fHalfIs32Bits);
77 writer->appendBool("Has poor fragment precision", fHasLowFragmentPrecision);
78 writer->appendBool("Builtin fma() support", fBuiltinFMASupport);
79 writer->appendBool("Builtin determinant() support", fBuiltinDeterminantSupport);
80
81 writer->appendS32("Max FS Samplers", fMaxFragmentSamplers);
82 writer->appendCString("Advanced blend equation interaction",
83 kAdvBlendEqInteractionStr[fAdvBlendEqInteraction]);
84
85 writer->endObject();
86 }
87 #else
dumpJSON(SkJSONWriter * writer) const88 void GrShaderCaps::dumpJSON(SkJSONWriter* writer) const { }
89 #endif
90
applyOptionsOverrides(const GrContextOptions & options)91 void GrShaderCaps::applyOptionsOverrides(const GrContextOptions& options) {
92 if (options.fDisableDriverCorrectnessWorkarounds) {
93 SkASSERT(fCanUseVoidInSequenceExpressions);
94 SkASSERT(fCanUseMinAndAbsTogether);
95 SkASSERT(fCanUseFractForNegativeValues);
96 SkASSERT(!fMustForceNegatedAtanParamToFloat);
97 SkASSERT(!fMustForceNegatedLdexpParamToMultiply);
98 SkASSERT(!fAtan2ImplementedAsAtanYOverX);
99 SkASSERT(!fMustDoOpBetweenFloorAndAbs);
100 SkASSERT(!fRequiresLocalOutputColorForFBFetch);
101 SkASSERT(!fMustObfuscateUniformColor);
102 SkASSERT(!fMustGuardDivisionEvenAfterExplicitZeroCheck);
103 SkASSERT(fCanUseFragCoord);
104 SkASSERT(!fAddAndTrueToLoopCondition);
105 SkASSERT(!fUnfoldShortCircuitAsTernary);
106 SkASSERT(!fEmulateAbsIntFunction);
107 SkASSERT(!fRewriteDoWhileLoops);
108 SkASSERT(!fRewriteSwitchStatements);
109 SkASSERT(!fRemovePowWithConstantExponent);
110 SkASSERT(!fMustWriteToFragColor);
111 SkASSERT(!fNoDefaultPrecisionForExternalSamplers);
112 SkASSERT(!fRewriteMatrixVectorMultiply);
113 SkASSERT(!fRewriteMatrixComparisons);
114 SkASSERT(!fPerlinNoiseRoundingFix);
115 SkASSERT(!fMustDeclareFragmentFrontFacing);
116 }
117 if (options.fReducedShaderVariations) {
118 fReducedShaderMode = true;
119 }
120 #if defined(GPU_TEST_UTILS)
121 if (options.fSuppressDualSourceBlending) {
122 fDualSourceBlendingSupport = false;
123 }
124 if (options.fSuppressFramebufferFetch) {
125 fFBFetchSupport = false;
126 }
127 #endif
128 }
129