Implement Porter Duff XP with a blend table
Removes the runtime logic used by PorterDuffXferProcessor to decide
blend coeffs and shader outputs, and instead uses a compile-time
constant table of pre-selected blend formulas. Separates out the dst
read fallback into its own XP.
Introduces a new blend strategy for srcCoeff=0 that can apply coverage
with a reverse subtract blend equation instead of dual source
blending.
Adds new macros in GrBlend.h to analyze blend formulas both runtime.
Removes kSetCoverageDrawing_OptFlag and GrSimplifyBlend as they are no
longer used.
Adds a GM that verifies all xfermodes, including arithmetic, with the
color/coverage invariants used by Porter Duff.
Adds a unit test that verifies each Porter Duff formula with every
color/coverage invariant.
Major changes:
* Uses a reverse subtract blend equation for coverage when srcCoeff=0
(clear, dst-out [Sa=1], dst-in, modulate). Platforms that don't
support dual source blending no longer require a dst copy for
dst-in and modulate.
* Sets BlendInfo::fWriteColor to false when the blend does not modify
the dst. GrGLGpu will now use glColorMask instead of blending for
these modes (dst, dst-in [Sa=1], modulate ignored for [Sc=1]).
* Converts all SA blend coeffs to One for opaque inputs, and ISA to
Zero if there is also no coverage. (We keep ISA around when there
is coverage because we use it to tweak alpha for coverage.)
* Abandons solid white optimizations for the sake of simplicity
(screen was the only mode that previous had solid white opts).
Minor differences:
* Inconsequential differences in opt flags (e.g. we now return
kCanTweakAlphaForCoverage_OptFlag even when there is no coverage).
* Src coeffs when the shader outputs 0.
* IS2C vs IS2A when the secondary output is scalar.
BUG=skia:
Committed: https://skia.googlesource.com/skia/+/9a70920db22b6309c671f8e5d519bb95570e4414
Review URL: https://codereview.chromium.org/1124373002
diff --git a/tests/GrPorterDuffTest.cpp b/tests/GrPorterDuffTest.cpp
new file mode 100644
index 0000000..3146712
--- /dev/null
+++ b/tests/GrPorterDuffTest.cpp
@@ -0,0 +1,1011 @@
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkXfermode.h"
+#include "Test.h"
+
+#if SK_SUPPORT_GPU
+
+#include "GrBatch.h"
+#include "GrContextFactory.h"
+#include "GrContextOptions.h"
+#include "GrGpu.h"
+#include "GrResourceProvider.h"
+#include "GrXferProcessor.h"
+#include "effects/GrPorterDuffXferProcessor.h"
+#include "gl/GrGLCaps.h"
+
+////////////////////////////////////////////////////////////////////////////////
+
+static void test_color_unknown_with_coverage(skiatest::Reporter* reporter, const GrCaps& caps);
+static void test_color_unknown_no_coverage(skiatest::Reporter* reporter, const GrCaps& caps);
+static void test_color_opaque_with_coverage(skiatest::Reporter* reporter, const GrCaps& caps);
+static void test_color_opaque_no_coverage(skiatest::Reporter* reporter, const GrCaps& caps);
+static void test_lcd_coverage(skiatest::Reporter* reporter, const GrCaps& caps);
+static void test_no_dual_source_blending(skiatest::Reporter* reporter);
+
+DEF_GPUTEST(GrPorterDuff, reporter, factory) {
+ GrContext* ctx = factory->get(GrContextFactory::kNull_GLContextType);
+ if (!ctx) {
+ SkFAIL("Failed to create null context.");
+ return;
+ }
+
+ const GrCaps& caps = *ctx->getGpu()->caps();
+ if (!caps.shaderCaps()->dualSourceBlendingSupport()) {
+ SkFAIL("Null context does not support dual source blending.");
+ return;
+ }
+
+ test_color_unknown_with_coverage(reporter, caps);
+ test_color_unknown_no_coverage(reporter, caps);
+ test_color_opaque_with_coverage(reporter, caps);
+ test_color_opaque_no_coverage(reporter, caps);
+ test_lcd_coverage(reporter, caps);
+ test_no_dual_source_blending(reporter);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+#define TEST_ASSERT(...) REPORTER_ASSERT(reporter, __VA_ARGS__)
+
+enum {
+ kNone_OutputType,
+ kCoverage_OutputType,
+ kModulate_OutputType,
+ kISAModulate_OutputType,
+ kISCModulate_OutputType
+};
+
+enum {
+ kNone_Opt = GrXferProcessor::kNone_Opt,
+ kSkipDraw_OptFlag = GrXferProcessor::kSkipDraw_OptFlag,
+ kIgnoreColor_OptFlag = GrXferProcessor::kIgnoreColor_OptFlag,
+ kIgnoreCoverage_OptFlag = GrXferProcessor::kIgnoreCoverage_OptFlag,
+ kCanTweakAlphaForCoverage_OptFlag = GrXferProcessor::kCanTweakAlphaForCoverage_OptFlag
+};
+
+class GrPorterDuffTest {
+public:
+ struct XPInfo {
+ XPInfo(skiatest::Reporter* reporter, SkXfermode::Mode xfermode, const GrCaps& caps,
+ const GrProcOptInfo& colorPOI, const GrProcOptInfo& covPOI) {
+ SkAutoTUnref<GrXPFactory> xpf(GrPorterDuffXPFactory::Create(xfermode));
+ SkAutoTUnref<GrXferProcessor> xp(xpf->createXferProcessor(colorPOI, covPOI, 0, caps));
+ TEST_ASSERT(!xpf->willNeedDstTexture(caps, colorPOI, covPOI));
+ xpf->getInvariantOutput(colorPOI, covPOI, &fInvariantOutput);
+ fOptFlags = xp->getOptimizations(colorPOI, covPOI, false, 0, caps);
+ GetXPOutputTypes(xp, &fPrimaryOutputType, &fSecondaryOutputType);
+ xp->getBlendInfo(&fBlendInfo);
+ TEST_ASSERT(!xp->willReadDstColor());
+ TEST_ASSERT(xp->hasSecondaryOutput() == GrBlendCoeffRefsSrc2(fBlendInfo.fDstBlend));
+ }
+
+ GrXPFactory::InvariantOutput fInvariantOutput;
+ int fOptFlags;
+ int fPrimaryOutputType;
+ int fSecondaryOutputType;
+ GrXferProcessor::BlendInfo fBlendInfo;
+ };
+
+ static void GetXPOutputTypes(const GrXferProcessor* xp, int* outPrimary, int* outSecondary) {
+ GrPorterDuffXPFactory::TestGetXPOutputTypes(xp, outPrimary, outSecondary);
+ }
+};
+
+static void test_color_unknown_with_coverage(skiatest::Reporter* reporter, const GrCaps& caps) {
+ GrProcOptInfo colorPOI, covPOI;
+ colorPOI.calcWithInitialValues(NULL, 0, 0, kNone_GrColorComponentFlags, false);
+ covPOI.calcWithInitialValues(NULL, 0, 0, kNone_GrColorComponentFlags, true);
+
+ SkASSERT(!colorPOI.isOpaque());
+ SkASSERT(!colorPOI.isSolidWhite());
+ SkASSERT(!covPOI.isSolidWhite());
+ SkASSERT(!covPOI.isFourChannelOutput());
+
+ for (int m = 0; m <= SkXfermode::kLastCoeffMode; m++) {
+ SkXfermode::Mode xfermode = static_cast<SkXfermode::Mode>(m);
+ const GrPorterDuffTest::XPInfo xpi(reporter, xfermode, caps, colorPOI, covPOI);
+
+ switch (xfermode) {
+ case SkXfermode::kClear_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreColor_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kCoverage_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kReverseSubtract_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kDC_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrc_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kNone_Opt) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kCoverage_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kIS2A_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDst_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kSkipDraw_OptFlag |
+ kIgnoreColor_OptFlag |
+ kIgnoreCoverage_OptFlag |
+ kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kNone_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(!xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrcOver_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kISA_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDstOver_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kIDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrcIn_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kNone_Opt) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kCoverage_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kIS2A_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDstIn_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kNone_Opt) == xpi.fOptFlags);
+ TEST_ASSERT(kISAModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kReverseSubtract_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kDC_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrcOut_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kNone_Opt) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kCoverage_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kIDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kIS2A_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDstOut_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kISA_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrcATop_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kISA_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDstATop_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kNone_Opt) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kISAModulate_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kIDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kIS2C_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kXor_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kIDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kISA_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kPlus_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kModulate_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kNone_Opt) == xpi.fOptFlags);
+ TEST_ASSERT(kISCModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kReverseSubtract_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kDC_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kScreen_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kISC_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ default:
+ ERRORF(reporter, "Invalid xfermode.");
+ break;
+ }
+ }
+}
+
+static void test_color_unknown_no_coverage(skiatest::Reporter* reporter, const GrCaps& caps) {
+ GrProcOptInfo colorPOI, covPOI;
+ colorPOI.calcWithInitialValues(NULL, 0, GrColorPackRGBA(229, 0, 154, 0),
+ kR_GrColorComponentFlag | kB_GrColorComponentFlag, false);
+ covPOI.calcWithInitialValues(NULL, 0, GrColorPackA4(255), kRGBA_GrColorComponentFlags, true);
+
+ SkASSERT(!colorPOI.isOpaque());
+ SkASSERT(!colorPOI.isSolidWhite());
+ SkASSERT(covPOI.isSolidWhite());
+ SkASSERT(!covPOI.isFourChannelOutput());
+
+ for (int m = 0; m <= SkXfermode::kLastCoeffMode; m++) {
+ SkXfermode::Mode xfermode = static_cast<SkXfermode::Mode>(m);
+ const GrPorterDuffTest::XPInfo xpi(reporter, xfermode, caps, colorPOI, covPOI);
+
+ switch (xfermode) {
+ case SkXfermode::kClear_Mode:
+ TEST_ASSERT(!xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(0 == xpi.fInvariantOutput.fBlendedColor);
+ TEST_ASSERT(kRGBA_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreColor_OptFlag |
+ kIgnoreCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kNone_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrc_Mode:
+ TEST_ASSERT(!xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(229 == GrColorUnpackR(xpi.fInvariantOutput.fBlendedColor));
+ TEST_ASSERT(154 == GrColorUnpackB(xpi.fInvariantOutput.fBlendedColor));
+ TEST_ASSERT((kR_GrColorComponentFlag |
+ kB_GrColorComponentFlag) == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDst_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kSkipDraw_OptFlag |
+ kIgnoreColor_OptFlag |
+ kIgnoreCoverage_OptFlag |
+ kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kNone_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(!xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrcOver_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag |
+ kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kISA_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDstOver_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag |
+ kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kIDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrcIn_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDstIn_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kSA_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrcOut_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kIDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDstOut_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag |
+ kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kISA_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrcATop_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag |
+ kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kISA_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDstATop_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kIDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kSA_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kXor_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag |
+ kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kIDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kISA_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kPlus_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag |
+ kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kModulate_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kSC_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kScreen_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag |
+ kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kISC_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ default:
+ ERRORF(reporter, "Invalid xfermode.");
+ break;
+ }
+ }
+}
+
+static void test_color_opaque_with_coverage(skiatest::Reporter* reporter, const GrCaps& caps) {
+ GrProcOptInfo colorPOI, covPOI;
+ colorPOI.calcWithInitialValues(NULL, 0, GrColorPackA4(255), kA_GrColorComponentFlag, false);
+ covPOI.calcWithInitialValues(NULL, 0, 0, kNone_GrColorComponentFlags, true);
+
+ SkASSERT(colorPOI.isOpaque());
+ SkASSERT(!colorPOI.isSolidWhite());
+ SkASSERT(!covPOI.isSolidWhite());
+ SkASSERT(!covPOI.isFourChannelOutput());
+
+ for (int m = 0; m <= SkXfermode::kLastCoeffMode; m++) {
+ SkXfermode::Mode xfermode = static_cast<SkXfermode::Mode>(m);
+ const GrPorterDuffTest::XPInfo xpi(reporter, xfermode, caps, colorPOI, covPOI);
+
+ switch (xfermode) {
+ case SkXfermode::kClear_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreColor_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kCoverage_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kReverseSubtract_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kDC_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrc_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kISA_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDst_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kSkipDraw_OptFlag |
+ kIgnoreColor_OptFlag |
+ kIgnoreCoverage_OptFlag |
+ kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kNone_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(!xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrcOver_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kISA_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDstOver_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kIDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrcIn_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kISA_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDstIn_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kSkipDraw_OptFlag |
+ kIgnoreColor_OptFlag |
+ kIgnoreCoverage_OptFlag |
+ kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kNone_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(!xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrcOut_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kIDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kISA_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDstOut_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreColor_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kCoverage_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kReverseSubtract_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kDC_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrcATop_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kISA_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDstATop_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kIDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kXor_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kIDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kISA_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kPlus_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kModulate_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kNone_Opt) == xpi.fOptFlags);
+ TEST_ASSERT(kISCModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kReverseSubtract_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kDC_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kScreen_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kISC_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ default:
+ ERRORF(reporter, "Invalid xfermode.");
+ break;
+ }
+ }
+}
+
+static void test_color_opaque_no_coverage(skiatest::Reporter* reporter, const GrCaps& caps) {
+ GrProcOptInfo colorPOI, covPOI;
+ colorPOI.calcWithInitialValues(NULL, 0, GrColorPackRGBA(0, 82, 0, 255),
+ kG_GrColorComponentFlag | kA_GrColorComponentFlag, false);
+ covPOI.calcWithInitialValues(NULL, 0, GrColorPackA4(255), kRGBA_GrColorComponentFlags, true);
+
+ SkASSERT(colorPOI.isOpaque());
+ SkASSERT(!colorPOI.isSolidWhite());
+ SkASSERT(covPOI.isSolidWhite());
+ SkASSERT(!covPOI.isFourChannelOutput());
+
+ for (int m = 0; m <= SkXfermode::kLastCoeffMode; m++) {
+ SkXfermode::Mode xfermode = static_cast<SkXfermode::Mode>(m);
+ const GrPorterDuffTest::XPInfo xpi(reporter, xfermode, caps, colorPOI, covPOI);
+
+ switch (xfermode) {
+ case SkXfermode::kClear_Mode:
+ TEST_ASSERT(!xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(0 == xpi.fInvariantOutput.fBlendedColor);
+ TEST_ASSERT(kRGBA_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreColor_OptFlag |
+ kIgnoreCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kNone_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrc_Mode:
+ TEST_ASSERT(!xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(82 == GrColorUnpackG(xpi.fInvariantOutput.fBlendedColor));
+ TEST_ASSERT(255 == GrColorUnpackA(xpi.fInvariantOutput.fBlendedColor));
+ TEST_ASSERT((kG_GrColorComponentFlag |
+ kA_GrColorComponentFlag) == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDst_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kSkipDraw_OptFlag |
+ kIgnoreColor_OptFlag |
+ kIgnoreCoverage_OptFlag |
+ kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kNone_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(!xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrcOver_Mode:
+ TEST_ASSERT(!xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(82 == GrColorUnpackG(xpi.fInvariantOutput.fBlendedColor));
+ TEST_ASSERT(255 == GrColorUnpackA(xpi.fInvariantOutput.fBlendedColor));
+ TEST_ASSERT((kG_GrColorComponentFlag |
+ kA_GrColorComponentFlag) == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDstOver_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag |
+ kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kIDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrcIn_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDstIn_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kSkipDraw_OptFlag |
+ kIgnoreColor_OptFlag |
+ kIgnoreCoverage_OptFlag |
+ kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kNone_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(!xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrcOut_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kIDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDstOut_Mode:
+ TEST_ASSERT(!xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(0 == xpi.fInvariantOutput.fBlendedColor);
+ TEST_ASSERT(kRGBA_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreColor_OptFlag |
+ kIgnoreCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kNone_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kSrcATop_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kDstATop_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag |
+ kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kIDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kXor_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kIDA_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kPlus_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag |
+ kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kModulate_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kZero_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kSC_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ case SkXfermode::kScreen_Mode:
+ TEST_ASSERT(xpi.fInvariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == xpi.fInvariantOutput.fBlendedColorFlags);
+ TEST_ASSERT((kIgnoreCoverage_OptFlag |
+ kCanTweakAlphaForCoverage_OptFlag) == xpi.fOptFlags);
+ TEST_ASSERT(kModulate_OutputType == xpi.fPrimaryOutputType);
+ TEST_ASSERT(kNone_OutputType == xpi.fSecondaryOutputType);
+ TEST_ASSERT(kAdd_GrBlendEquation == xpi.fBlendInfo.fEquation);
+ TEST_ASSERT(kOne_GrBlendCoeff == xpi.fBlendInfo.fSrcBlend);
+ TEST_ASSERT(kISC_GrBlendCoeff == xpi.fBlendInfo.fDstBlend);
+ TEST_ASSERT(xpi.fBlendInfo.fWriteColor);
+ break;
+ default:
+ ERRORF(reporter, "Invalid xfermode.");
+ break;
+ }
+ }
+}
+
+static void test_lcd_coverage(skiatest::Reporter* reporter, const GrCaps& caps) {
+ class : public GrBatch {
+ void getInvariantOutputColor(GrInitInvariantOutput* out) const override {
+ out->setKnownFourComponents(GrColorPackRGBA(123, 45, 67, 221));
+ }
+
+ void getInvariantOutputCoverage(GrInitInvariantOutput* out) const override {
+ out->setUnknownFourComponents();
+ out->setUsingLCDCoverage();
+ }
+
+ const char* name() const override { return "Test LCD Text Batch"; }
+ void initBatchTracker(const GrPipelineInfo&) override {}
+ bool onCombineIfPossible(GrBatch*) override { return false; }
+ void generateGeometry(GrBatchTarget*, const GrPipeline*) override {}
+
+ } testLCDCoverageBatch;
+
+ GrProcOptInfo colorPOI, covPOI;
+ colorPOI.calcColorWithBatch(&testLCDCoverageBatch, NULL, 0);
+ covPOI.calcCoverageWithBatch(&testLCDCoverageBatch, NULL, 0);
+
+ SkASSERT(kRGBA_GrColorComponentFlags == colorPOI.validFlags());
+ SkASSERT(covPOI.isFourChannelOutput());
+
+ SkAutoTUnref<GrXPFactory> xpf(GrPorterDuffXPFactory::Create(SkXfermode::kSrcOver_Mode));
+ TEST_ASSERT(!xpf->willNeedDstTexture(caps, colorPOI, covPOI));
+
+ SkAutoTUnref<GrXferProcessor> xp(xpf->createXferProcessor(colorPOI, covPOI, 0, caps));
+ if (!xp) {
+ ERRORF(reporter, "Failed to create an XP with LCD coverage.");
+ return;
+ }
+
+ GrXPFactory::InvariantOutput invariantOutput;
+ xpf->getInvariantOutput(colorPOI, covPOI, &invariantOutput);
+ TEST_ASSERT(invariantOutput.fWillBlendWithDst);
+ TEST_ASSERT(kNone_GrColorComponentFlags == invariantOutput.fBlendedColorFlags);
+
+ GrColor overrideColor;
+ xp->getOptimizations(colorPOI, covPOI, false, &overrideColor, caps);
+
+ GrXferProcessor::BlendInfo blendInfo;
+ xp->getBlendInfo(&blendInfo);
+ TEST_ASSERT(blendInfo.fWriteColor);
+}
+
+static void test_no_dual_source_blending(skiatest::Reporter* reporter) {
+ GrContextOptions opts;
+ opts.fSuppressDualSourceBlending = true;
+ GrContextFactory factory(opts);
+ factory.get(GrContextFactory::kNull_GLContextType);
+ GrContext* ctx = factory.get(GrContextFactory::kNull_GLContextType);
+ if (!ctx) {
+ SkFAIL("Failed to create null context without ARB_blend_func_extended.");
+ return;
+ }
+
+ const GrCaps& caps = *ctx->getGpu()->caps();
+ if (caps.shaderCaps()->dualSourceBlendingSupport()) {
+ SkFAIL("Null context failed to honor request for no ARB_blend_func_extended.");
+ return;
+ }
+
+ GrBackendTextureDesc fakeDesc;
+ fakeDesc.fConfig = kRGBA_8888_GrPixelConfig;
+ fakeDesc.fWidth = fakeDesc.fHeight = 100;
+ fakeDesc.fTextureHandle = 1;
+ SkAutoTUnref<GrTexture> fakeTexture(ctx->resourceProvider()->wrapBackendTexture(fakeDesc));
+ GrXferProcessor::DstTexture fakeDstTexture;
+ fakeDstTexture.setTexture(fakeTexture);
+
+ static const GrColor testColors[] = {
+ 0,
+ GrColorPackRGBA(0, 82, 0, 255),
+ GrColorPackA4(255)
+ };
+ static const GrColorComponentFlags testColorFlags[] = {
+ kNone_GrColorComponentFlags,
+ kG_GrColorComponentFlag | kA_GrColorComponentFlag,
+ kRGBA_GrColorComponentFlags
+ };
+ GR_STATIC_ASSERT(SK_ARRAY_COUNT(testColors) == SK_ARRAY_COUNT(testColorFlags));
+
+ for (size_t c = 0; c < SK_ARRAY_COUNT(testColors); c++) {
+ GrProcOptInfo colorPOI;
+ colorPOI.calcWithInitialValues(NULL, 0, testColors[c], testColorFlags[c], false);
+ for (int f = 0; f <= 1; f++) {
+ GrProcOptInfo covPOI;
+ if (!f) {
+ covPOI.calcWithInitialValues(NULL, 0, 0, kNone_GrColorComponentFlags, true);
+ } else {
+ covPOI.calcWithInitialValues(NULL, 0, GrColorPackA4(255),
+ kRGBA_GrColorComponentFlags, true);
+ }
+ for (int m = 0; m <= SkXfermode::kLastCoeffMode; m++) {
+ SkXfermode::Mode xfermode = static_cast<SkXfermode::Mode>(m);
+ SkAutoTUnref<GrXPFactory> xpf(GrPorterDuffXPFactory::Create(xfermode));
+ SkAutoTUnref<GrXferProcessor> xp;
+ if (xpf->willNeedDstTexture(caps, colorPOI, covPOI)) {
+ xp.reset(xpf->createXferProcessor(colorPOI, covPOI, &fakeDstTexture, caps));
+ } else {
+ xp.reset(xpf->createXferProcessor(colorPOI, covPOI, NULL, caps));
+ }
+ if (!xp) {
+ ERRORF(reporter, "Failed to create an XP without dual source blending.");
+ return;
+ }
+ TEST_ASSERT(!xp->hasSecondaryOutput());
+ xp->getOptimizations(colorPOI, covPOI, false, 0, caps);
+ TEST_ASSERT(!xp->hasSecondaryOutput());
+ }
+ }
+ }
+}
+
+#endif
+