/*

 * Copyright 2020 Google Inc.

 *

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

 * found in the LICENSE file.

 */

#include "include/effects/SkImageFilters.h"

#include "modules/svg/include/SkSVGFeFlood.h"

#include "modules/svg/include/SkSVGFilterContext.h"

#include "modules/svg/include/SkSVGRenderContext.h"

#include "modules/svg/include/SkSVGValue.h"

SkColor SkSVGFeFlood::resolveFloodColor(const SkSVGRenderContext& ctx) const {

    const auto floodColor = this->getFloodColor();

    const auto floodOpacity = this->getFloodOpacity();

    // Uninherited presentation attributes should have a concrete value by now.

    if (!floodColor.isValue() || !floodOpacity.isValue()) {

        SkDebugf("unhandled: flood-color or flood-opacity has no value\n");

        return SK_ColorBLACK;

    }

    const SkColor color = ctx.resolveSvgColor(*floodColor);

    return SkColorSetA(color, SkScalarRoundToInt(*floodOpacity * 255));

}

sk_sp<SkImageFilter> SkSVGFeFlood::onMakeImageFilter(const SkSVGRenderContext& ctx,

                                                     const SkSVGFilterContext& fctx) const {

    return SkImageFilters::Shader(SkShaders::Color(resolveFloodColor(ctx)),

                                  this->resolveFilterSubregion(ctx, fctx));

}