diff options
author | Mike Reed <reed@google.com> | 2016-10-03 12:57:32 -0400 |
---|---|---|
committer | Skia Commit-Bot <skia-commit-bot@chromium.org> | 2016-10-03 17:17:10 +0000 |
commit | 0591897548c8fcb7d53cc94053e01702e58f1ac5 (patch) | |
tree | 099bf31c7bf4bd3062d2e7a8b4268a89f1fd61a2 /src/core/SkXfermode.cpp | |
parent | a224bb7027f022cf78376cb7afa2fff83d59153e (diff) |
replace SkXfermode obj with SkBlendMode enum in paints
BUG=skia:5814
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2714
Change-Id: I4fb489ba6b3f77b458f7e4a99f79c7ad10859135
Reviewed-on: https://skia-review.googlesource.com/2714
Reviewed-by: Florin Malita <fmalita@chromium.org>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Mike Reed <reed@google.com>
Diffstat (limited to 'src/core/SkXfermode.cpp')
-rw-r--r-- | src/core/SkXfermode.cpp | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/core/SkXfermode.cpp b/src/core/SkXfermode.cpp index 2717fab7e9..226f2b8b43 100644 --- a/src/core/SkXfermode.cpp +++ b/src/core/SkXfermode.cpp @@ -1553,3 +1553,64 @@ bool SkProcCoeffXfermode::onAppendStages(SkRasterPipeline* p) const { } return false; } + +/////////////////////////////////////////////////////////////////////////////////////////////////// + +bool SkBlendMode_SupportsCoverageAsAlpha(SkBlendMode mode) { + switch (mode) { + case SkBlendMode::kDst: + case SkBlendMode::kSrcOver: + case SkBlendMode::kDstOver: + case SkBlendMode::kDstOut: + case SkBlendMode::kSrcATop: + case SkBlendMode::kXor: + case SkBlendMode::kPlus: + return true; + default: + break; + } + return false; +} + +bool SkXfermode::IsOpaque(SkBlendMode mode, SrcColorOpacity opacityType) { + const ProcCoeff rec = gProcCoeffs[(int)mode]; + + switch (rec.fSC) { + case kDA_Coeff: + case kDC_Coeff: + case kIDA_Coeff: + case kIDC_Coeff: + return false; + default: + break; + } + + switch (rec.fDC) { + case kZero_Coeff: + return true; + case kISA_Coeff: + return kOpaque_SrcColorOpacity == opacityType; + case kSA_Coeff: + return kTransparentBlack_SrcColorOpacity == opacityType || + kTransparentAlpha_SrcColorOpacity == opacityType; + case kSC_Coeff: + return kTransparentBlack_SrcColorOpacity == opacityType; + default: + return false; + } + return false; +} + +#if SK_SUPPORT_GPU +sk_sp<GrXPFactory> SkBlendMode_AsXPFactory(SkBlendMode mode) { + const ProcCoeff rec = gProcCoeffs[(int)mode]; + if (CANNOT_USE_COEFF != rec.fSC) { + sk_sp<GrXPFactory> result(GrPorterDuffXPFactory::Make(mode)); + SkASSERT(result); + return result; + } + + SkASSERT(GrCustomXfermode::IsSupportedMode((SkXfermode::Mode)mode)); + return GrCustomXfermode::MakeXPFactory((SkXfermode::Mode)mode); +} +#endif |