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/*
* Copyright (C) 2014 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.
*/
#ifndef DEFERREDLAYERUPDATE_H_
#define DEFERREDLAYERUPDATE_H_
#include <cutils/compiler.h>
#include <gui/GLConsumer.h>
#include <SkColorFilter.h>
#include <SkMatrix.h>
#include <utils/StrongPointer.h>
#include "Layer.h"
#include "Rect.h"
#include "renderthread/RenderThread.h"
namespace android {
namespace uirenderer {
// Container to hold the properties a layer should be set to at the start
// of a render pass
class DeferredLayerUpdater : public VirtualLightRefBase {
public:
// Note that DeferredLayerUpdater assumes it is taking ownership of the layer
// and will not call incrementRef on it as a result.
ANDROID_API DeferredLayerUpdater(renderthread::RenderThread& thread, Layer* layer);
ANDROID_API ~DeferredLayerUpdater();
ANDROID_API bool setSize(int width, int height) {
if (mWidth != width || mHeight != height) {
mWidth = width;
mHeight = height;
return true;
}
return false;
}
ANDROID_API bool setBlend(bool blend) {
if (blend != mBlend) {
mBlend = blend;
return true;
}
return false;
}
ANDROID_API void setSurfaceTexture(const sp<GLConsumer>& texture, bool needsAttach) {
if (texture.get() != mSurfaceTexture.get()) {
mNeedsGLContextAttach = needsAttach;
mSurfaceTexture = texture;
GLenum target = texture->getCurrentTextureTarget();
LOG_ALWAYS_FATAL_IF(target != GL_TEXTURE_2D && target != GL_TEXTURE_EXTERNAL_OES,
"set unsupported GLConsumer with target %x", target);
}
}
ANDROID_API void updateTexImage() {
mUpdateTexImage = true;
}
ANDROID_API void setTransform(const SkMatrix* matrix) {
delete mTransform;
mTransform = matrix ? new SkMatrix(*matrix) : nullptr;
}
ANDROID_API void setPaint(const SkPaint* paint);
ANDROID_API bool apply();
Layer* backingLayer() {
return mLayer;
}
ANDROID_API void detachSurfaceTexture();
private:
// Generic properties
int mWidth;
int mHeight;
bool mBlend;
SkColorFilter* mColorFilter;
int mAlpha;
SkXfermode::Mode mMode;
sp<GLConsumer> mSurfaceTexture;
SkMatrix* mTransform;
bool mNeedsGLContextAttach;
bool mUpdateTexImage;
Layer* mLayer;
Caches& mCaches;
renderthread::RenderThread& mRenderThread;
void doUpdateTexImage();
};
} /* namespace uirenderer */
} /* namespace android */
#endif /* DEFERREDLAYERUPDATE_H_ */
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