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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "Layer.h"
#include "renderstate/RenderState.h"
#include "utils/Color.h"
#include <SkToSRGBColorFilter.h>
namespace android {
namespace uirenderer {
Layer::Layer(RenderState& renderState, sk_sp<SkColorFilter> colorFilter, int alpha,
SkBlendMode mode)
: mRenderState(renderState)
, mColorFilter(colorFilter)
, alpha(alpha)
, mode(mode) {
// TODO: This is a violation of Android's typical ref counting, but it
// preserves the old inc/dec ref locations. This should be changed...
incStrong(nullptr);
buildColorSpaceWithFilter();
renderState.registerLayer(this);
texTransform.setIdentity();
transform.setIdentity();
}
Layer::~Layer() {
mRenderState.unregisterLayer(this);
}
void Layer::setColorFilter(sk_sp<SkColorFilter> filter) {
if (filter != mColorFilter) {
mColorFilter = filter;
buildColorSpaceWithFilter();
}
}
void Layer::setDataSpace(android_dataspace dataspace) {
if (dataspace != mCurrentDataspace) {
mCurrentDataspace = dataspace;
buildColorSpaceWithFilter();
}
}
void Layer::buildColorSpaceWithFilter() {
sk_sp<SkColorFilter> colorSpaceFilter;
sk_sp<SkColorSpace> colorSpace = DataSpaceToColorSpace(mCurrentDataspace);
if (colorSpace && !colorSpace->isSRGB()) {
colorSpaceFilter = SkToSRGBColorFilter::Make(colorSpace);
}
if (mColorFilter && colorSpaceFilter) {
mColorSpaceWithFilter = mColorFilter->makeComposed(colorSpaceFilter);
} else if (colorSpaceFilter) {
mColorSpaceWithFilter = colorSpaceFilter;
} else {
mColorSpaceWithFilter = mColorFilter;
}
}
void Layer::postDecStrong() {
mRenderState.postDecStrong(this);
}
SkBlendMode Layer::getMode() const {
if (mBlend || mode != SkBlendMode::kSrcOver) {
return mode;
} else {
return SkBlendMode::kSrc;
}
}
}; // namespace uirenderer
}; // namespace android
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