SkColorFilterBase.cpp

Enable keyboard shortcuts

/*

 * Copyright 2006 The Android Open Source Project

 * Use of this source code is governed by a BSD-style license that can be

 * found in the LICENSE file.

*/

#include "src/effects/colorfilters/SkColorFilterBase.h"

#include "include/core/SkColor.h"

#include "include/core/SkColorSpace.h" // IWYU pragma: keep

#include "include/core/SkColorType.h"

#include "include/core/SkSurfaceProps.h"

#include "include/private/SkColorData.h"

#include "include/private/base/SkAssert.h"

#include "src/base/SkArenaAlloc.h"

#include "src/core/SkEffectPriv.h"

#include "src/core/SkRasterPipeline.h"

#include "src/core/SkRasterPipelineOpContexts.h"

#include "src/core/SkRasterPipelineOpList.h"

#include <cstddef>

enum class SkBlendMode;

bool SkColorFilterBase::onAsAColorMode(SkColor*, SkBlendMode*) const {

    return false;

bool SkColorFilterBase::onAsAColorMatrix(float matrix[20]) const {

    return false;

SkPMColor4f SkColorFilterBase::onFilterColor4f(const SkPMColor4f& color,

                                               SkColorSpace* dstCS) const {

    constexpr size_t kEnoughForCommonFilters = 2048;  // big enough for a tiny SkSL program

    SkSTArenaAlloc<kEnoughForCommonFilters> alloc;

    SkRasterPipeline    pipeline(&alloc);

    pipeline.appendConstantColor(&alloc, color.vec());

    SkSurfaceProps props{}; // default OK; colorFilters don't render text

    SkStageRec rec = {&pipeline, &alloc, kRGBA_F32_SkColorType, dstCS, color.unpremul(), props};

    if (as_CFB(this)->appendStages(rec, color.fA == 1)) {

        SkPMColor4f dst;

        SkRasterPipeline_MemoryCtx dstPtr = { &dst, 0 };

        pipeline.append(SkRasterPipelineOp::store_f32, &dstPtr);

        pipeline.run(0,0, 1,1);

        return dst;

    SkDEBUGFAIL("onFilterColor4f unimplemented for this filter");

    return SkPMColor4f{0,0,0,0};