61 lines
2.1 KiB
C++
61 lines
2.1 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "LayerDrawable.h"
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#include "SkColorFilter.h"
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#include "gl/GrGLTypes.h"
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namespace android {
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namespace uirenderer {
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namespace skiapipeline {
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void LayerDrawable::onDraw(SkCanvas* canvas) {
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// transform the matrix based on the layer
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int saveCount = -1;
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if (!mLayer->getTransform().isIdentity()) {
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saveCount = canvas->save();
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SkMatrix transform;
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mLayer->getTransform().copyTo(transform);
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canvas->concat(transform);
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}
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GrGLTextureInfo externalTexture;
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externalTexture.fTarget = mLayer->getRenderTarget();
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externalTexture.fID = mLayer->getTextureId();
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GrContext* context = canvas->getGrContext();
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GrBackendTextureDesc textureDescription;
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textureDescription.fWidth = mLayer->getWidth();
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textureDescription.fHeight = mLayer->getHeight();
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textureDescription.fConfig = kRGBA_8888_GrPixelConfig;
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textureDescription.fOrigin = kTopLeft_GrSurfaceOrigin;
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textureDescription.fTextureHandle = reinterpret_cast<GrBackendObject>(&externalTexture);
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sk_sp<SkImage> layerImage = SkImage::MakeFromTexture(context, textureDescription);
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if (layerImage) {
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SkPaint paint;
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paint.setAlpha(mLayer->getAlpha());
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paint.setBlendMode(mLayer->getMode());
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paint.setColorFilter(sk_ref_sp(mLayer->getColorFilter()));
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canvas->drawImage(layerImage, 0, 0, &paint);
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}
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// restore the original matrix
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if (saveCount >= 0) {
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canvas->restoreToCount(saveCount);
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}
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}
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}; // namespace skiapipeline
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}; // namespace uirenderer
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}; // namespace android
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