107fbe5599
Adds a getConsumerName method to IGraphicBufferProducer and Surface. Currently, the name is cached inside of IGBP and is updated on connect and dequeueBuffer, which should be good enough for most uses. Bug: 6667401 Change-Id: Ife94bd89023fe7c00bad916932b9a19233fd2290
325 lines
13 KiB
C++
325 lines
13 KiB
C++
/*
|
|
* Copyright (C) 2010 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_H
|
|
#define ANDROID_GUI_SURFACE_H
|
|
|
|
#include <gui/IGraphicBufferProducer.h>
|
|
#include <gui/BufferQueue.h>
|
|
|
|
#include <ui/ANativeObjectBase.h>
|
|
#include <ui/Region.h>
|
|
|
|
#include <utils/RefBase.h>
|
|
#include <utils/threads.h>
|
|
#include <utils/KeyedVector.h>
|
|
|
|
struct ANativeWindow_Buffer;
|
|
|
|
namespace android {
|
|
|
|
/*
|
|
* An implementation of ANativeWindow that feeds graphics buffers into a
|
|
* BufferQueue.
|
|
*
|
|
* This is typically used by programs that want to render frames through
|
|
* some means (maybe OpenGL, a software renderer, or a hardware decoder)
|
|
* and have the frames they create forwarded to SurfaceFlinger for
|
|
* compositing. For example, a video decoder could render a frame and call
|
|
* eglSwapBuffers(), which invokes ANativeWindow callbacks defined by
|
|
* Surface. Surface then forwards the buffers through Binder IPC
|
|
* to the BufferQueue's producer interface, providing the new frame to a
|
|
* consumer such as GLConsumer.
|
|
*/
|
|
class Surface
|
|
: public ANativeObjectBase<ANativeWindow, Surface, RefBase>
|
|
{
|
|
public:
|
|
|
|
/*
|
|
* creates a Surface from the given IGraphicBufferProducer (which concrete
|
|
* implementation is a BufferQueue).
|
|
*
|
|
* Surface is mainly state-less while it's disconnected, it can be
|
|
* viewed as a glorified IGraphicBufferProducer holder. It's therefore
|
|
* safe to create other Surfaces from the same IGraphicBufferProducer.
|
|
*
|
|
* However, once a Surface is connected, it'll prevent other Surfaces
|
|
* referring to the same IGraphicBufferProducer to become connected and
|
|
* therefore prevent them to be used as actual producers of buffers.
|
|
*
|
|
* the controlledByApp flag indicates that this Surface (producer) is
|
|
* controlled by the application. This flag is used at connect time.
|
|
*/
|
|
Surface(const sp<IGraphicBufferProducer>& bufferProducer, bool controlledByApp = false);
|
|
|
|
/* getIGraphicBufferProducer() returns the IGraphicBufferProducer this
|
|
* Surface was created with. Usually it's an error to use the
|
|
* IGraphicBufferProducer while the Surface is connected.
|
|
*/
|
|
sp<IGraphicBufferProducer> getIGraphicBufferProducer() const;
|
|
|
|
/* convenience function to check that the given surface is non NULL as
|
|
* well as its IGraphicBufferProducer */
|
|
static bool isValid(const sp<Surface>& surface) {
|
|
return surface != NULL && surface->getIGraphicBufferProducer() != NULL;
|
|
}
|
|
|
|
/* Attaches a sideband buffer stream to the Surface's IGraphicBufferProducer.
|
|
*
|
|
* A sideband stream is a device-specific mechanism for passing buffers
|
|
* from the producer to the consumer without using dequeueBuffer/
|
|
* queueBuffer. If a sideband stream is present, the consumer can choose
|
|
* whether to acquire buffers from the sideband stream or from the queued
|
|
* buffers.
|
|
*
|
|
* Passing NULL or a different stream handle will detach the previous
|
|
* handle if any.
|
|
*/
|
|
void setSidebandStream(const sp<NativeHandle>& stream);
|
|
|
|
/* Allocates buffers based on the current dimensions/format.
|
|
*
|
|
* This function will allocate up to the maximum number of buffers
|
|
* permitted by the current BufferQueue configuration. It will use the
|
|
* default format and dimensions. This is most useful to avoid an allocation
|
|
* delay during dequeueBuffer. If there are already the maximum number of
|
|
* buffers allocated, this function has no effect.
|
|
*/
|
|
void allocateBuffers();
|
|
|
|
/* Sets the generation number on the IGraphicBufferProducer and updates the
|
|
* generation number on any buffers attached to the Surface after this call.
|
|
* See IGBP::setGenerationNumber for more information. */
|
|
status_t setGenerationNumber(uint32_t generationNumber);
|
|
|
|
// See IGraphicBufferProducer::getConsumerName
|
|
String8 getConsumerName() const;
|
|
|
|
protected:
|
|
virtual ~Surface();
|
|
|
|
private:
|
|
// can't be copied
|
|
Surface& operator = (const Surface& rhs);
|
|
Surface(const Surface& rhs);
|
|
|
|
// ANativeWindow hooks
|
|
static int hook_cancelBuffer(ANativeWindow* window,
|
|
ANativeWindowBuffer* buffer, int fenceFd);
|
|
static int hook_dequeueBuffer(ANativeWindow* window,
|
|
ANativeWindowBuffer** buffer, int* fenceFd);
|
|
static int hook_perform(ANativeWindow* window, int operation, ...);
|
|
static int hook_query(const ANativeWindow* window, int what, int* value);
|
|
static int hook_queueBuffer(ANativeWindow* window,
|
|
ANativeWindowBuffer* buffer, int fenceFd);
|
|
static int hook_setSwapInterval(ANativeWindow* window, int interval);
|
|
|
|
static int hook_cancelBuffer_DEPRECATED(ANativeWindow* window,
|
|
ANativeWindowBuffer* buffer);
|
|
static int hook_dequeueBuffer_DEPRECATED(ANativeWindow* window,
|
|
ANativeWindowBuffer** buffer);
|
|
static int hook_lockBuffer_DEPRECATED(ANativeWindow* window,
|
|
ANativeWindowBuffer* buffer);
|
|
static int hook_queueBuffer_DEPRECATED(ANativeWindow* window,
|
|
ANativeWindowBuffer* buffer);
|
|
|
|
int dispatchConnect(va_list args);
|
|
int dispatchDisconnect(va_list args);
|
|
int dispatchSetBufferCount(va_list args);
|
|
int dispatchSetBuffersGeometry(va_list args);
|
|
int dispatchSetBuffersDimensions(va_list args);
|
|
int dispatchSetBuffersUserDimensions(va_list args);
|
|
int dispatchSetBuffersFormat(va_list args);
|
|
int dispatchSetScalingMode(va_list args);
|
|
int dispatchSetBuffersTransform(va_list args);
|
|
int dispatchSetBuffersStickyTransform(va_list args);
|
|
int dispatchSetBuffersTimestamp(va_list args);
|
|
int dispatchSetCrop(va_list args);
|
|
int dispatchSetPostTransformCrop(va_list args);
|
|
int dispatchSetUsage(va_list args);
|
|
int dispatchLock(va_list args);
|
|
int dispatchUnlockAndPost(va_list args);
|
|
int dispatchSetSidebandStream(va_list args);
|
|
int dispatchSetBuffersDataSpace(va_list args);
|
|
int dispatchSetSurfaceDamage(va_list args);
|
|
|
|
protected:
|
|
virtual int dequeueBuffer(ANativeWindowBuffer** buffer, int* fenceFd);
|
|
virtual int cancelBuffer(ANativeWindowBuffer* buffer, int fenceFd);
|
|
virtual int queueBuffer(ANativeWindowBuffer* buffer, int fenceFd);
|
|
virtual int perform(int operation, va_list args);
|
|
virtual int query(int what, int* value) const;
|
|
virtual int setSwapInterval(int interval);
|
|
|
|
virtual int lockBuffer_DEPRECATED(ANativeWindowBuffer* buffer);
|
|
|
|
virtual int connect(int api);
|
|
virtual int disconnect(int api);
|
|
virtual int setBufferCount(int bufferCount);
|
|
virtual int setBuffersDimensions(uint32_t width, uint32_t height);
|
|
virtual int setBuffersUserDimensions(uint32_t width, uint32_t height);
|
|
virtual int setBuffersFormat(PixelFormat format);
|
|
virtual int setScalingMode(int mode);
|
|
virtual int setBuffersTransform(uint32_t transform);
|
|
virtual int setBuffersStickyTransform(uint32_t transform);
|
|
virtual int setBuffersTimestamp(int64_t timestamp);
|
|
virtual int setBuffersDataSpace(android_dataspace dataSpace);
|
|
virtual int setCrop(Rect const* rect);
|
|
virtual int setUsage(uint32_t reqUsage);
|
|
virtual void setSurfaceDamage(android_native_rect_t* rects, size_t numRects);
|
|
|
|
public:
|
|
virtual int lock(ANativeWindow_Buffer* outBuffer, ARect* inOutDirtyBounds);
|
|
virtual int unlockAndPost();
|
|
|
|
virtual int connect(int api, const sp<IProducerListener>& listener);
|
|
virtual int detachNextBuffer(sp<GraphicBuffer>* outBuffer,
|
|
sp<Fence>* outFence);
|
|
virtual int attachBuffer(ANativeWindowBuffer*);
|
|
|
|
protected:
|
|
enum { NUM_BUFFER_SLOTS = BufferQueue::NUM_BUFFER_SLOTS };
|
|
enum { DEFAULT_FORMAT = PIXEL_FORMAT_RGBA_8888 };
|
|
|
|
private:
|
|
void freeAllBuffers();
|
|
int getSlotFromBufferLocked(android_native_buffer_t* buffer) const;
|
|
|
|
struct BufferSlot {
|
|
sp<GraphicBuffer> buffer;
|
|
Region dirtyRegion;
|
|
};
|
|
|
|
// mSurfaceTexture is the interface to the surface texture server. All
|
|
// operations on the surface texture client ultimately translate into
|
|
// interactions with the server using this interface.
|
|
// TODO: rename to mBufferProducer
|
|
sp<IGraphicBufferProducer> mGraphicBufferProducer;
|
|
|
|
// mSlots stores the buffers that have been allocated for each buffer slot.
|
|
// It is initialized to null pointers, and gets filled in with the result of
|
|
// IGraphicBufferProducer::requestBuffer when the client dequeues a buffer from a
|
|
// slot that has not yet been used. The buffer allocated to a slot will also
|
|
// be replaced if the requested buffer usage or geometry differs from that
|
|
// of the buffer allocated to a slot.
|
|
BufferSlot mSlots[NUM_BUFFER_SLOTS];
|
|
|
|
// mReqWidth is the buffer width that will be requested at the next dequeue
|
|
// operation. It is initialized to 1.
|
|
uint32_t mReqWidth;
|
|
|
|
// mReqHeight is the buffer height that will be requested at the next
|
|
// dequeue operation. It is initialized to 1.
|
|
uint32_t mReqHeight;
|
|
|
|
// mReqFormat is the buffer pixel format that will be requested at the next
|
|
// deuque operation. It is initialized to PIXEL_FORMAT_RGBA_8888.
|
|
PixelFormat mReqFormat;
|
|
|
|
// mReqUsage is the set of buffer usage flags that will be requested
|
|
// at the next deuque operation. It is initialized to 0.
|
|
uint32_t mReqUsage;
|
|
|
|
// mTimestamp is the timestamp that will be used for the next buffer queue
|
|
// operation. It defaults to NATIVE_WINDOW_TIMESTAMP_AUTO, which means that
|
|
// a timestamp is auto-generated when queueBuffer is called.
|
|
int64_t mTimestamp;
|
|
|
|
// mDataSpace is the buffer dataSpace that will be used for the next buffer
|
|
// queue operation. It defaults to HAL_DATASPACE_UNKNOWN, which
|
|
// means that the buffer contains some type of color data.
|
|
android_dataspace mDataSpace;
|
|
|
|
// mCrop is the crop rectangle that will be used for the next buffer
|
|
// that gets queued. It is set by calling setCrop.
|
|
Rect mCrop;
|
|
|
|
// mScalingMode is the scaling mode that will be used for the next
|
|
// buffers that get queued. It is set by calling setScalingMode.
|
|
int mScalingMode;
|
|
|
|
// mTransform is the transform identifier that will be used for the next
|
|
// buffer that gets queued. It is set by calling setTransform.
|
|
uint32_t mTransform;
|
|
|
|
// mStickyTransform is a transform that is applied on top of mTransform
|
|
// in each buffer that is queued. This is typically used to force the
|
|
// compositor to apply a transform, and will prevent the transform hint
|
|
// from being set by the compositor.
|
|
uint32_t mStickyTransform;
|
|
|
|
// mDefaultWidth is default width of the buffers, regardless of the
|
|
// native_window_set_buffers_dimensions call.
|
|
uint32_t mDefaultWidth;
|
|
|
|
// mDefaultHeight is default height of the buffers, regardless of the
|
|
// native_window_set_buffers_dimensions call.
|
|
uint32_t mDefaultHeight;
|
|
|
|
// mUserWidth, if non-zero, is an application-specified override
|
|
// of mDefaultWidth. This is lower priority than the width set by
|
|
// native_window_set_buffers_dimensions.
|
|
uint32_t mUserWidth;
|
|
|
|
// mUserHeight, if non-zero, is an application-specified override
|
|
// of mDefaultHeight. This is lower priority than the height set
|
|
// by native_window_set_buffers_dimensions.
|
|
uint32_t mUserHeight;
|
|
|
|
// mTransformHint is the transform probably applied to buffers of this
|
|
// window. this is only a hint, actual transform may differ.
|
|
uint32_t mTransformHint;
|
|
|
|
// mProducerControlledByApp whether this buffer producer is controlled
|
|
// by the application
|
|
bool mProducerControlledByApp;
|
|
|
|
// mSwapIntervalZero set if we should drop buffers at queue() time to
|
|
// achieve an asynchronous swap interval
|
|
bool mSwapIntervalZero;
|
|
|
|
// mConsumerRunningBehind whether the consumer is running more than
|
|
// one buffer behind the producer.
|
|
mutable bool mConsumerRunningBehind;
|
|
|
|
// mMutex is the mutex used to prevent concurrent access to the member
|
|
// variables of Surface objects. It must be locked whenever the
|
|
// member variables are accessed.
|
|
mutable Mutex mMutex;
|
|
|
|
// must be used from the lock/unlock thread
|
|
sp<GraphicBuffer> mLockedBuffer;
|
|
sp<GraphicBuffer> mPostedBuffer;
|
|
bool mConnectedToCpu;
|
|
|
|
// When a CPU producer is attached, this reflects the region that the
|
|
// producer wished to update as well as whether the Surface was able to copy
|
|
// the previous buffer back to allow a partial update.
|
|
//
|
|
// When a non-CPU producer is attached, this reflects the surface damage
|
|
// (the change since the previous frame) passed in by the producer.
|
|
Region mDirtyRegion;
|
|
|
|
// Stores the current generation number. See setGenerationNumber and
|
|
// IGraphicBufferProducer::setGenerationNumber for more information.
|
|
uint32_t mGenerationNumber;
|
|
};
|
|
|
|
}; // namespace android
|
|
|
|
#endif // ANDROID_GUI_SURFACE_H
|