From 4189d1b8b7dfa62f10845b0afcadba3a956ec939 Mon Sep 17 00:00:00 2001 From: Sadrul Habib Chowdhury Date: Fri, 18 Aug 2017 10:20:02 -0400 Subject: Add SK_API to SkOverdrawCanvas and SkOverdrawColorFilter. The SkiaRenderer in chromium is going to use the overdraw canvas and filter for measuring overdraw. Move these headers out of src/ into include/. Bug: chromium:704285 Change-Id: I2abb1671b73e3d26552462cf700340a7e3b874f0 Reviewed-on: https://skia-review.googlesource.com/36160 Reviewed-by: Brian Salomon Commit-Queue: Brian Salomon --- include/effects/SkOverdrawColorFilter.h | 56 +++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 include/effects/SkOverdrawColorFilter.h (limited to 'include/effects') diff --git a/include/effects/SkOverdrawColorFilter.h b/include/effects/SkOverdrawColorFilter.h new file mode 100644 index 0000000000..ac97821269 --- /dev/null +++ b/include/effects/SkOverdrawColorFilter.h @@ -0,0 +1,56 @@ +/* + * Copyright 2016 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include "SkColorFilter.h" +#include "SkFlattenable.h" + +#ifndef SkOverdrawColorFilter_DEFINED +#define SkOverdrawColorFilter_DEFINED + +/** + * Uses the value in the src alpha channel to set the dst pixel. + * 0 -> fColors[0] + * 1 -> fColors[1] + * ... + * 5 (or larger) -> fColors[5] + * + */ +class SK_API SkOverdrawColorFilter : public SkColorFilter { +public: + static constexpr int kNumColors = 6; + + static sk_sp Make(const SkPMColor colors[kNumColors]) { + return sk_sp(new SkOverdrawColorFilter(colors)); + } + +#if SK_SUPPORT_GPU + std::unique_ptr asFragmentProcessor(GrContext*, + SkColorSpace*) const override; +#endif + + void toString(SkString* str) const override; + + static sk_sp CreateProc(SkReadBuffer& buffer); + Factory getFactory() const override { return CreateProc; } + SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP() + +protected: + void flatten(SkWriteBuffer& buffer) const override; + +private: + SkOverdrawColorFilter(const SkPMColor colors[kNumColors]) { + memcpy(fColors, colors, kNumColors * sizeof(SkPMColor)); + } + + void onAppendStages(SkRasterPipeline*, SkColorSpace*, SkArenaAlloc*, bool) const override; + + SkPMColor fColors[kNumColors]; + + typedef SkColorFilter INHERITED; +}; + +#endif // SkOverdrawColorFilter_DEFINED -- cgit v1.2.3