blob: 3783b99cac4de84a520a6a92d393dbaa5e4a1178 [file] [log] [blame]
/*
* Copyright 2019 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "modules/skottie/src/effects/Effects.h"
#include "modules/skottie/src/SkottieValue.h"
#include "modules/sksg/include/SkSGColorFilter.h"
#include "modules/sksg/include/SkSGPaint.h"
#include "src/utils/SkJSON.h"
namespace skottie {
namespace internal {
sk_sp<sksg::RenderNode> EffectBuilder::attachTritoneEffect(const skjson::ArrayValue& jprops,
sk_sp<sksg::RenderNode> layer) const {
enum : size_t {
kHiColor_Index = 0,
kMiColor_Index = 1,
kLoColor_Index = 2,
kBlendAmount_Index = 3,
kMax_Index = kBlendAmount_Index,
};
if (jprops.size() <= kMax_Index) {
return nullptr;
}
const skjson::ObjectValue* hicolor_prop = jprops[ kHiColor_Index];
const skjson::ObjectValue* micolor_prop = jprops[ kMiColor_Index];
const skjson::ObjectValue* locolor_prop = jprops[ kLoColor_Index];
const skjson::ObjectValue* blend_prop = jprops[kBlendAmount_Index];
if (!hicolor_prop || !micolor_prop || !locolor_prop || !blend_prop) {
return nullptr;
}
auto tritone_node =
sksg::GradientColorFilter::Make(std::move(layer), {
fBuilder->attachColor(*locolor_prop, "v"),
fBuilder->attachColor(*micolor_prop, "v"),
fBuilder->attachColor(*hicolor_prop, "v") });
if (!tritone_node) {
return nullptr;
}
fBuilder->bindProperty<ScalarValue>((*blend_prop)["v"],
[tritone_node](const ScalarValue& w) {
tritone_node->setWeight((100 - w) / 100); // 100-based, inverted (!?).
});
return tritone_node;
}
} // namespace internal
} // namespace skottie