add upm->upm helper
Change-Id: I912e58339b3b84be17d6a98d52cbc11f376c9a89
Reviewed-on: https://skia-review.googlesource.com/132093
Commit-Queue: Mike Klein <mtklein@chromium.org>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Auto-Submit: Mike Klein <mtklein@chromium.org>
diff --git a/src/core/SkColorSpaceXformSteps.h b/src/core/SkColorSpaceXformSteps.h
index 07e968d..6c38411 100644
--- a/src/core/SkColorSpaceXformSteps.h
+++ b/src/core/SkColorSpaceXformSteps.h
@@ -15,6 +15,13 @@
SkColorSpaceXformSteps(SkColorSpace* src, SkAlphaType srcAT,
SkColorSpace* dst);
+ static SkColorSpaceXformSteps UnpremulToUnpremul(SkColorSpace* src, SkColorSpace* dst) {
+ // The need to transform unpremul to unpremul comes up often enough that it's
+ // nice to centralize it here, especially because this use of kOpaque_SkAlphaType
+ // isn't the most intuitive. We basically want to always skip unpremul and premul.
+ return SkColorSpaceXformSteps(src, kOpaque_SkAlphaType, dst);
+ }
+
bool unpremul;
bool linearize;
bool gamut_transform;