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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
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* See the License for the specific language governing permissions and
* limitations under the License.
#include <stdint.h>
#include <sys/types.h>
#include <utils/KeyedVector.h>
#include <utils/RefBase.h>
#include <utils/threads.h>
#include <ui/FrameStats.h>
#include <ui/PixelFormat.h>
#include <ui/Region.h>
#include <gui/ISurfaceComposerClient.h>
namespace android {
// ---------------------------------------------------------------------------
class IGraphicBufferProducer;
class Surface;
class SurfaceComposerClient;
// ---------------------------------------------------------------------------
class SurfaceControl : public RefBase
static bool isValid(const sp<SurfaceControl>& surface) {
return (surface != 0) && surface->isValid();
bool isValid() {
return mHandle!=0 && mClient!=0;
static bool isSameSurface(
const sp<SurfaceControl>& lhs, const sp<SurfaceControl>& rhs);
// release surface data from java
void clear();
// disconnect any api that's connected
void disconnect();
status_t setLayerStack(uint32_t layerStack);
status_t setLayer(uint32_t layer);
status_t setPosition(float x, float y);
status_t setSize(uint32_t w, uint32_t h);
status_t hide();
status_t show();
status_t setFlags(uint32_t flags, uint32_t mask);
status_t setTransparentRegionHint(const Region& transparent);
status_t setAlpha(float alpha=1.0f);
status_t setMatrix(float dsdx, float dtdx, float dsdy, float dtdy);
status_t setCrop(const Rect& crop);
status_t setFinalCrop(const Rect& crop);
// If the size changes in this transaction, all geometry updates specified
// in this transaction will not complete until a buffer of the new size
// arrives. As some elements normally apply immediately, this enables
// freezing the total geometry of a surface until a resize is completed.
status_t setGeometryAppliesWithResize();
// Defers applying any changes made in this transaction until the Layer
// identified by handle reaches the given frameNumber
status_t deferTransactionUntil(sp<IBinder> handle, uint64_t frameNumber);
// Set an override scaling mode as documented in <system/window.h>
// the override scaling mode will take precedence over any client
// specified scaling mode. -1 will clear the override scaling mode.
status_t setOverrideScalingMode(int32_t overrideScalingMode);
static status_t writeSurfaceToParcel(
const sp<SurfaceControl>& control, Parcel* parcel);
sp<Surface> getSurface() const;
sp<IBinder> getHandle() const;
status_t clearLayerFrameStats() const;
status_t getLayerFrameStats(FrameStats* outStats) const;
status_t getTransformToDisplayInverse(bool* outTransformToDisplayInverse) const;
// can't be copied
SurfaceControl& operator = (SurfaceControl& rhs);
SurfaceControl(const SurfaceControl& rhs);
friend class SurfaceComposerClient;
friend class Surface;
const sp<SurfaceComposerClient>& client,
const sp<IBinder>& handle,
const sp<IGraphicBufferProducer>& gbp);
status_t validate() const;
void destroy();
sp<SurfaceComposerClient> mClient;
sp<IBinder> mHandle;
sp<IGraphicBufferProducer> mGraphicBufferProducer;
mutable Mutex mLock;
mutable sp<Surface> mSurfaceData;
}; // namespace android