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/*
* Copyright (C) 2007 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 ANDROID_LAYER_BLUR_H
#define ANDROID_LAYER_BLUR_H
#include <stdint.h>
#include <sys/types.h>
#include <ui/Region.h>
#include "LayerBase.h"
namespace android {
// ---------------------------------------------------------------------------
class LayerBlur : public LayerBaseClient
{
public:
LayerBlur(SurfaceFlinger* flinger, DisplayID display,
const sp<Client>& client);
virtual ~LayerBlur();
virtual void onDraw(const Region& clip) const;
virtual bool needsBlending() const { return true; }
virtual bool isSecure() const { return false; }
virtual const char* getTypeId() const { return "LayerBlur"; }
virtual uint32_t doTransaction(uint32_t flags);
virtual void setVisibleRegion(const Region& visibleRegion);
virtual void unlockPageFlip(const Transform& planeTransform, Region& outDirtyRegion);
private:
bool mCacheDirty;
mutable bool mRefreshCache;
mutable bool mAutoRefreshPending;
nsecs_t mCacheAge;
mutable GLuint mTextureName;
mutable GLfloat mWidthScale;
mutable GLfloat mHeightScale;
mutable GLfloat mYOffset;
mutable GLint mReadFormat;
mutable GLint mReadType;
mutable uint32_t mBlurFormat;
};
// ---------------------------------------------------------------------------
}; // namespace android
#endif // ANDROID_LAYER_BLUR_H
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