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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_GUI_SURFACE_CONTROL_H
#define ANDROID_GUI_SURFACE_CONTROL_H
#include <stdint.h>
#include <sys/types.h>
#include <optional>
#include <utils/RefBase.h>
#include <utils/threads.h>
#include <ui/FrameStats.h>
#include <ui/PixelFormat.h>
#include <ui/Region.h>
#include <gui/ISurfaceComposerClient.h>
#include <math/vec3.h>
namespace android {
// ---------------------------------------------------------------------------
class IGraphicBufferProducer;
class Surface;
class SurfaceComposerClient;
class BLASTBufferQueue;
// ---------------------------------------------------------------------------
class SurfaceControl : public RefBase
{
public:
static status_t readFromParcel(const Parcel& parcel, sp<SurfaceControl>* outSurfaceControl);
status_t writeToParcel(Parcel& parcel);
static status_t readNullableFromParcel(const Parcel& parcel,
sp<SurfaceControl>* outSurfaceControl);
static status_t writeNullableToParcel(Parcel& parcel, const sp<SurfaceControl>& surfaceControl);
static bool isValid(const sp<SurfaceControl>& surface) {
return (surface != nullptr) && surface->isValid();
}
bool isValid() {
return mHandle!=nullptr && mClient!=nullptr;
}
static bool isSameSurface(
const sp<SurfaceControl>& lhs, const sp<SurfaceControl>& rhs);
// Reparent off-screen and release. This is invoked by the destructor.
void destroy();
// disconnect any api that's connected
void disconnect();
static status_t writeSurfaceToParcel(
const sp<SurfaceControl>& control, Parcel* parcel);
sp<Surface> getSurface();
sp<Surface> createSurface();
sp<IBinder> getHandle() const;
sp<IBinder> getLayerStateHandle() const;
int32_t getLayerId() const;
sp<IGraphicBufferProducer> getIGraphicBufferProducer();
status_t clearLayerFrameStats() const;
status_t getLayerFrameStats(FrameStats* outStats) const;
sp<SurfaceComposerClient> getClient() const;
uint32_t getTransformHint() const;
void setTransformHint(uint32_t hint);
void updateDefaultBufferSize(uint32_t width, uint32_t height);
explicit SurfaceControl(const sp<SurfaceControl>& other);
SurfaceControl(const sp<SurfaceComposerClient>& client, const sp<IBinder>& handle,
const sp<IGraphicBufferProducer>& gbp, int32_t layerId,
uint32_t width = 0, uint32_t height = 0, PixelFormat format = 0,
uint32_t transformHint = 0, uint32_t flags = 0);
sp<SurfaceControl> getParentingLayer();
uint64_t resolveFrameNumber(const std::optional<uint64_t>& frameNumber);
private:
// can't be copied
SurfaceControl& operator = (SurfaceControl& rhs);
SurfaceControl(const SurfaceControl& rhs);
friend class SurfaceComposerClient;
friend class Surface;
~SurfaceControl();
sp<Surface> generateSurfaceLocked();
status_t validate() const;
sp<SurfaceComposerClient> mClient;
sp<IBinder> mHandle;
sp<IGraphicBufferProducer> mGraphicBufferProducer;
mutable Mutex mLock;
mutable sp<Surface> mSurfaceData;
mutable sp<BLASTBufferQueue> mBbq;
mutable sp<SurfaceControl> mBbqChild;
int32_t mLayerId = 0;
uint32_t mTransformHint = 0;
uint32_t mWidth = 0;
uint32_t mHeight = 0;
PixelFormat mFormat = PIXEL_FORMAT_NONE;
uint32_t mCreateFlags = 0;
uint64_t mFallbackFrameNumber = 100;
};
}; // namespace android
#endif // ANDROID_GUI_SURFACE_CONTROL_H
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