4dc5a45405
Preparation for generating bookmaker files for all remaining interfaces Standardize enum and enum classes by including a comma after the last entry. Replace flatten-related #define in public interfaces with their equivalent. The motivation is to give documentation something to refer to. An alternative would be to move part or all of this out of the public interface; something I can work on in a follow-up CL. R=reed@google.com,bsalomon@google.com Bug: skia:6898 Change-Id: I4b865f6ec3d8f5d31e50448fef7d2714510302f0 Reviewed-on: https://skia-review.googlesource.com/129312 Reviewed-by: Brian Salomon <bsalomon@google.com> Commit-Queue: Cary Clark <caryclark@skia.org>
31 lines
814 B
C
31 lines
814 B
C
/*
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* Copyright 2018 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkCoverageMode_DEFINED
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#define SkCoverageMode_DEFINED
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#include "SkTypes.h"
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/**
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* Describes geometric operations (ala SkRegion::Op) that can be applied to coverage bytes.
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* These can be thought of as variants of porter-duff (SkBlendMode) modes, but only applied
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* to the alpha channel.
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*
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* See SkMaskFilter for ways to use these when combining two different masks.
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*/
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enum class SkCoverageMode {
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kUnion, // A ∪ B A+B-A*B
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kIntersect, // A ∩ B A*B
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kDifference, // A - B A*(1-B)
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kReverseDifference, // B - A B*(1-A)
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kXor, // A ⊕ B A+B-2*A*B
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kLast = kXor,
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};
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#endif
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