diff options
Diffstat (limited to 'src/core/SkColorSpace.cpp')
-rw-r--r-- | src/core/SkColorSpace.cpp | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/core/SkColorSpace.cpp b/src/core/SkColorSpace.cpp index 3874f0e7d0..e7bd4e8111 100644 --- a/src/core/SkColorSpace.cpp +++ b/src/core/SkColorSpace.cpp @@ -316,6 +316,51 @@ sk_sp<SkColorSpace> SkColorSpace::Deserialize(const void* data, size_t length) { return NewICC(data, profileSize); } +bool SkColorSpace::Equals(const SkColorSpace* src, const SkColorSpace* dst) { + if (src == dst) { + return true; + } + + if (!src || !dst) { + return false; + } + + switch (src->fNamed) { + case kSRGB_Named: + case kAdobeRGB_Named: + return src->fNamed == dst->fNamed; + case kUnknown_Named: + if (kUnknown_Named != dst->fNamed) { + return false; + } + break; + } + + SkData* srcData = as_CSB(src)->fProfileData.get(); + SkData* dstData = as_CSB(dst)->fProfileData.get(); + if (srcData || dstData) { + if (srcData && dstData) { + return srcData->size() == dstData->size() && + 0 == memcmp(srcData->data(), dstData->data(), srcData->size()); + } + + return false; + } + + // It's important to check fProfileData before named gammas. Some profiles may have named + // gammas, but also include other wacky features that cause us to save the data. + switch (src->fGammaNamed) { + case kSRGB_GammaNamed: + case k2Dot2Curve_GammaNamed: + case kLinear_GammaNamed: + return (src->fGammaNamed == dst->fGammaNamed) && (src->fToXYZD50 == dst->fToXYZD50); + default: + // If |src| does not have a named gamma, fProfileData should be non-null. + SkASSERT(false); + return false; + } +} + bool SkColorSpace::gammasAreMatching() const { const SkGammas* gammas = as_CSB(this)->gammas(); SkASSERT(gammas); |