/*
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* Copyright (C) 2014 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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#pragma once
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#include <SkColorFilter.h>
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#include <SkImage.h>
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#include <SkMatrix.h>
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#include <cutils/compiler.h>
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#include <map>
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#include <system/graphics.h>
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#include <utils/StrongPointer.h>
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#include <GLES2/gl2.h>
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#include <GLES2/gl2ext.h>
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#include "renderstate/RenderState.h"
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#include "surfacetexture/SurfaceTexture.h"
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#include "Layer.h"
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#include "Rect.h"
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namespace android {
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namespace uirenderer {
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class RenderState;
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// Container to hold the properties a layer should be set to at the start
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// of a render pass
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class DeferredLayerUpdater : public VirtualLightRefBase, public IGpuContextCallback {
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public:
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// Note that DeferredLayerUpdater assumes it is taking ownership of the layer
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// and will not call incrementRef on it as a result.
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ANDROID_API explicit DeferredLayerUpdater(RenderState& renderState);
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ANDROID_API ~DeferredLayerUpdater();
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ANDROID_API bool setSize(int width, int height) {
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if (mWidth != width || mHeight != height) {
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mWidth = width;
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mHeight = height;
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return true;
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}
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return false;
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}
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int getWidth() { return mWidth; }
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int getHeight() { return mHeight; }
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ANDROID_API bool setBlend(bool blend) {
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if (blend != mBlend) {
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mBlend = blend;
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return true;
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}
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return false;
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}
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ANDROID_API void setSurfaceTexture(const sp<SurfaceTexture>& consumer) {
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if (consumer.get() != mSurfaceTexture.get()) {
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mSurfaceTexture = consumer;
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GLenum target = consumer->getCurrentTextureTarget();
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LOG_ALWAYS_FATAL_IF(target != GL_TEXTURE_2D && target != GL_TEXTURE_EXTERNAL_OES,
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"set unsupported SurfaceTexture with target %x", target);
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}
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}
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ANDROID_API void updateTexImage() { mUpdateTexImage = true; }
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ANDROID_API void setTransform(const SkMatrix* matrix) {
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delete mTransform;
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mTransform = matrix ? new SkMatrix(*matrix) : nullptr;
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}
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SkMatrix* getTransform() { return mTransform; }
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ANDROID_API void setPaint(const SkPaint* paint);
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void apply();
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Layer* backingLayer() { return mLayer; }
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void detachSurfaceTexture();
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void updateLayer(bool forceFilter, const SkMatrix& textureTransform,
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const sk_sp<SkImage>& layerImage);
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void destroyLayer();
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protected:
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void onContextDestroyed() override;
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private:
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RenderState& mRenderState;
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// Generic properties
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int mWidth = 0;
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int mHeight = 0;
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bool mBlend = false;
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sk_sp<SkColorFilter> mColorFilter;
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int mAlpha = 255;
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SkBlendMode mMode = SkBlendMode::kSrcOver;
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sp<SurfaceTexture> mSurfaceTexture;
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SkMatrix* mTransform;
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bool mGLContextAttached;
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bool mUpdateTexImage;
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Layer* mLayer;
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};
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} /* namespace uirenderer */
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} /* namespace android */
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