gfx/skia/skia/src/core/SkModeColorFilter.h
author Wes Kocher <wkocher@mozilla.com>
Wed, 10 May 2017 10:01:18 -0700
changeset 407965 ce2218406119c36a551e3faea4e192186ee46cc5
parent 407937 af6f19870b2a00759ac1d83dedc3db57213abfee
child 408167 0ded74baeaf23d7985401fe9bbabdb3d9385ac22
permissions -rw-r--r--
Backed out 9 changesets (bug 1340627) for graphical glitches a=backout Backed out changeset 0b1371055c7f (bug 1340627) Backed out changeset f152be1fadb7 (bug 1340627) Backed out changeset c691e2ab6a0c (bug 1340627) Backed out changeset 3cb4bceb8d79 (bug 1340627) Backed out changeset 026aadd76d06 (bug 1340627) Backed out changeset fdbd5d281287 (bug 1340627) Backed out changeset 75fb0d9858a9 (bug 1340627) Backed out changeset 0d4ec7d38a00 (bug 1340627) Backed out changeset af6f19870b2a (bug 1340627) MozReview-Commit-ID: 9dHr7xMZezY

/*
 * 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 "SkXfermode.h"

#ifndef SkModeColorFilter_DEFINED
#define SkModeColorFilter_DEFINED

class SkModeColorFilter : public SkColorFilter {
public:
    static sk_sp<SkColorFilter> Make(SkColor color, SkXfermode::Mode mode) {
        return sk_sp<SkColorFilter>(new SkModeColorFilter(color, mode));
    }
#ifdef SK_SUPPORT_LEGACY_COLORFILTER_PTR
    static SkColorFilter* Create(SkColor color, SkXfermode::Mode mode) {
        return Make(color, mode).release();
    }
#endif

    SkColor getColor() const { return fColor; }
    SkXfermode::Mode getMode() const { return fMode; }
    SkPMColor getPMColor() const { return fPMColor; }

    bool asColorMode(SkColor*, SkXfermode::Mode*) const override;
    uint32_t getFlags() const override;
    void filterSpan(const SkPMColor shader[], int count, SkPMColor result[]) const override;
    void filterSpan4f(const SkPM4f shader[], int count, SkPM4f result[]) const override;

#ifndef SK_IGNORE_TO_STRING
    void toString(SkString* str) const override;
#endif

#if SK_SUPPORT_GPU
    sk_sp<GrFragmentProcessor> asFragmentProcessor(GrContext*) const override;
#endif
    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkModeColorFilter)

protected:
    SkModeColorFilter(SkColor color, SkXfermode::Mode mode) {
        fColor = color;
        fMode = mode;
        this->updateCache();
    }

    void flatten(SkWriteBuffer&) const override;

private:
    SkColor             fColor;
    SkXfermode::Mode    fMode;
    // cache
    SkPMColor           fPMColor;
    SkXfermodeProc      fProc;

    void updateCache();

    friend class SkColorFilter;

    typedef SkColorFilter INHERITED;
};

#endif