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- /*
- * Copyright 2015 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #ifndef GrXfermodeFragmentProcessor_DEFINED
- #define GrXfermodeFragmentProcessor_DEFINED
- #include "include/core/SkBlendMode.h"
- #include "include/core/SkRefCnt.h"
- class GrFragmentProcessor;
- namespace GrXfermodeFragmentProcessor {
- /** The color input to the returned processor is treated as the src and the passed in processor is
- the dst. */
- std::unique_ptr<GrFragmentProcessor> MakeFromDstProcessor(std::unique_ptr<GrFragmentProcessor> dst,
- SkBlendMode mode);
- /** The color input to the returned processor is treated as the dst and the passed in processor is
- the src. */
- std::unique_ptr<GrFragmentProcessor> MakeFromSrcProcessor(std::unique_ptr<GrFragmentProcessor> src,
- SkBlendMode mode);
- /** Takes the input color, which is assumed to be unpremultiplied, passes it as an opaque color
- to both src and dst. The outputs of a src and dst are blended using mode and the original
- input's alpha is applied to the blended color to produce a premul output. */
- std::unique_ptr<GrFragmentProcessor> MakeFromTwoProcessors(std::unique_ptr<GrFragmentProcessor> src,
- std::unique_ptr<GrFragmentProcessor> dst,
- SkBlendMode mode);
- };
- #endif
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