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gui: Update header docs for IGraphicBufferConsumer/Producer/BufferQueue 

Also fix compiler warnings for libgui

Change-Id: I0ee38d9ad5eaa82d55bf812d291da8c433581cef
This commit is contained in:
Igor Murashkin 2013-11-12 18:02:20 -08:00
parent 324c69b542
commit 7d2d160cdc
7 changed files with 266 additions and 48 deletions
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24
include/gui/BufferQueue.h
View File

@ -42,10 +42,16 @@ class BufferQueue : public BnGraphicBufferProducer,
private IBinder::DeathRecipient {
public:
enum { MIN_UNDEQUEUED_BUFFERS = 2 };
// BufferQueue will keep track of at most this value of buffers.
// Attempts at runtime to increase the number of buffers past this will fail.
enum { NUM_BUFFER_SLOTS = 32 };
enum { NO_CONNECTED_API = 0 };
enum { INVALID_BUFFER_SLOT = -1 };
enum { STALE_BUFFER_SLOT = 1, NO_BUFFER_AVAILABLE, PRESENT_LATER };
// Used as a placeholder slot# when the value isn't pointing to an existing buffer.
enum { INVALID_BUFFER_SLOT = IGraphicBufferConsumer::BufferItem::INVALID_BUFFER_SLOT };
// Alias to <IGraphicBufferConsumer.h> -- please scope from there in future code!
enum {
NO_BUFFER_AVAILABLE = IGraphicBufferConsumer::NO_BUFFER_AVAILABLE,
PRESENT_LATER = IGraphicBufferConsumer::PRESENT_LATER,
};
// When in async mode we reserve two slots in order to guarantee that the
// producer and consumer can run asynchronously.
@ -75,7 +81,6 @@ public:
wp<ConsumerListener> mConsumerListener;
};
// BufferQueue manages a pool of gralloc memory slots to be used by
// producers and consumers. allocator is used to allocate all the
// needed gralloc buffers.
@ -212,7 +217,7 @@ public:
*/
// acquireBuffer attempts to acquire ownership of the next pending buffer in
// the BufferQueue. If no buffer is pending then it returns -EINVAL. If a
// the BufferQueue. If no buffer is pending then it returns NO_BUFFER_AVAILABLE. If a
// buffer is successfully acquired, the information about the buffer is
// returned in BufferItem. If the buffer returned had previously been
// acquired then the BufferItem::mGraphicBuffer field of buffer is set to
@ -224,7 +229,7 @@ public:
// future, the buffer won't be acquired, and PRESENT_LATER will be
// returned. The presentation time is in nanoseconds, and the time base
// is CLOCK_MONOTONIC.
virtual status_t acquireBuffer(BufferItem *buffer, nsecs_t presentWhen);
virtual status_t acquireBuffer(BufferItem* buffer, nsecs_t presentWhen);
// releaseBuffer releases a buffer slot from the consumer back to the
// BufferQueue. This may be done while the buffer's contents are still
@ -312,8 +317,13 @@ public:
// dump our state in a String
virtual void dump(String8& result, const char* prefix) const;
private:
// The default API number used to indicate no producer client is connected.
enum { NO_CONNECTED_API = 0 };
// Aliases for using enums from <IGraphicBufferConsumer.h>
enum { STALE_BUFFER_SLOT = IGraphicBufferConsumer::STALE_BUFFER_SLOT };
// freeBufferLocked frees the GraphicBuffer and sync resources for the
// given slot.
void freeBufferLocked(int index);

90
include/gui/IGraphicBufferConsumer.h
View File

@ -48,6 +48,7 @@ public:
status_t unflatten(void const*& buffer, size_t& size, int const*& fds, size_t& count);
public:
// The default value of mBuf, used to indicate this doesn't correspond to a slot.
enum { INVALID_BUFFER_SLOT = -1 };
BufferItem();
@ -63,13 +64,17 @@ public:
Rect mCrop;
// mTransform is the current transform flags for this buffer slot.
// refer to NATIVE_WINDOW_TRANSFORM_* in <window.h>
uint32_t mTransform;
// mScalingMode is the current scaling mode for this buffer slot.
// refer to NATIVE_WINDOW_SCALING_* in <window.h>
uint32_t mScalingMode;
// mTimestamp is the current timestamp for this buffer slot. This gets
// to set by queueBuffer each time this slot is queued.
// to set by queueBuffer each time this slot is queued. This value
// is guaranteed to be monotonically increasing for each newly
// acquired buffer.
int64_t mTimestamp;
// mIsAutoTimestamp indicates whether mTimestamp was generated
@ -79,7 +84,7 @@ public:
// mFrameNumber is the number of the queued frame for this slot.
uint64_t mFrameNumber;
// mBuf is the slot index of this buffer
// mBuf is the slot index of this buffer (default INVALID_BUFFER_SLOT).
int mBuf;
// mIsDroppable whether this buffer was queued with the
@ -97,21 +102,42 @@ public:
bool mTransformToDisplayInverse;
};
enum {
// Returned by releaseBuffer, after which the consumer must
// free any references to the just-released buffer that it might have.
STALE_BUFFER_SLOT = 1,
// Returned by dequeueBuffer if there are no pending buffers available.
NO_BUFFER_AVAILABLE,
// Returned by dequeueBuffer if it's too early for the buffer to be acquired.
PRESENT_LATER,
};
// acquireBuffer attempts to acquire ownership of the next pending buffer in
// the BufferQueue. If no buffer is pending then it returns -EINVAL. If a
// buffer is successfully acquired, the information about the buffer is
// returned in BufferItem. If the buffer returned had previously been
// the BufferQueue. If no buffer is pending then it returns
// NO_BUFFER_AVAILABLE. If a buffer is successfully acquired, the
// information about the buffer is returned in BufferItem.
//
// If the buffer returned had previously been
// acquired then the BufferItem::mGraphicBuffer field of buffer is set to
// NULL and it is assumed that the consumer still holds a reference to the
// buffer.
//
// If presentWhen is nonzero, it indicates the time when the buffer will
// If presentWhen is non-zero, it indicates the time when the buffer will
// be displayed on screen. If the buffer's timestamp is farther in the
// future, the buffer won't be acquired, and PRESENT_LATER will be
// returned. The presentation time is in nanoseconds, and the time base
// is CLOCK_MONOTONIC.
virtual status_t acquireBuffer(BufferItem *buffer, nsecs_t presentWhen) = 0;
//
// Return of NO_ERROR means the operation completed as normal.
//
// Return of a positive value means the operation could not be completed
// at this time, but the user should try again later:
// * NO_BUFFER_AVAILABLE - no buffer is pending (nothing queued by producer)
// * PRESENT_LATER - the buffer's timestamp is farther in the future
//
// Return of a negative value means an error has occurred:
// * INVALID_OPERATION - too many buffers have been acquired
virtual status_t acquireBuffer(BufferItem* buffer, nsecs_t presentWhen) = 0;
// releaseBuffer releases a buffer slot from the consumer back to the
// BufferQueue. This may be done while the buffer's contents are still
@ -125,6 +151,18 @@ public:
//
// Note that the dependencies on EGL will be removed once we switch to using
// the Android HW Sync HAL.
//
// Return of NO_ERROR means the operation completed as normal.
//
// Return of a positive value means the operation could not be completed
// at this time, but the user should try again later:
// * STALE_BUFFER_SLOT - see above (second paragraph)
//
// Return of a negative value means an error has occurred:
// * BAD_VALUE - one of the following could've happened:
// * the buffer slot was invalid
// * the fence was NULL
// * the buffer slot specified is not in the acquired state
virtual status_t releaseBuffer(int buf, uint64_t frameNumber,
EGLDisplay display, EGLSyncKHR fence,
const sp<Fence>& releaseFence) = 0;
@ -137,24 +175,38 @@ public:
// the application.
//
// consumer may not be NULL.
//
// Return of a value other than NO_ERROR means an error has occurred:
// * NO_INIT - the buffer queue has been abandoned
// * BAD_VALUE - a NULL consumer was provided
virtual status_t consumerConnect(const sp<IConsumerListener>& consumer, bool controlledByApp) = 0;
// consumerDisconnect disconnects a consumer from the BufferQueue. All
// buffers will be freed and the BufferQueue is placed in the "abandoned"
// state, causing most interactions with the BufferQueue by the producer to
// fail.
//
// Return of a value other than NO_ERROR means an error has occurred:
// * BAD_VALUE - no consumer is currently connected
virtual status_t consumerDisconnect() = 0;
// getReleasedBuffers sets the value pointed to by slotMask to a bit mask
// indicating which buffer slots have been released by the BufferQueue
// but have not yet been released by the consumer.
// getReleasedBuffers sets the value pointed to by slotMask to a bit set.
// Each bit index with a 1 corresponds to a released buffer slot with that
// index value. In particular, a released buffer is one that has
// been released by the BufferQueue but have not yet been released by the consumer.
//
// This should be called from the onBuffersReleased() callback.
//
// Return of a value other than NO_ERROR means an error has occurred:
// * NO_INIT - the buffer queue has been abandoned.
virtual status_t getReleasedBuffers(uint32_t* slotMask) = 0;
// setDefaultBufferSize is used to set the size of buffers returned by
// dequeueBuffer when a width and height of zero is requested. Default
// is 1x1.
//
// Return of a value other than NO_ERROR means an error has occurred:
// * BAD_VALUE - either w or h was zero
virtual status_t setDefaultBufferSize(uint32_t w, uint32_t h) = 0;
// setDefaultMaxBufferCount sets the default value for the maximum buffer
@ -163,6 +215,9 @@ public:
// take effect if the producer sets the count back to zero.
//
// The count must be between 2 and NUM_BUFFER_SLOTS, inclusive.
//
// Return of a value other than NO_ERROR means an error has occurred:
// * BAD_VALUE - bufferCount was out of range (see above).
virtual status_t setDefaultMaxBufferCount(int bufferCount) = 0;
// disableAsyncBuffer disables the extra buffer used in async mode
@ -170,11 +225,20 @@ public:
// flag) and has dequeueBuffer() return WOULD_BLOCK instead.
//
// This can only be called before consumerConnect().
//
// Return of a value other than NO_ERROR means an error has occurred:
// * INVALID_OPERATION - attempting to call this after consumerConnect.
virtual status_t disableAsyncBuffer() = 0;
// setMaxAcquiredBufferCount sets the maximum number of buffers that can
// be acquired by the consumer at one time (default 1). This call will
// fail if a producer is connected to the BufferQueue.
//
// maxAcquiredBuffers must be (inclusive) between 1 and MAX_MAX_ACQUIRED_BUFFERS.
//
// Return of a value other than NO_ERROR means an error has occurred:
// * BAD_VALUE - maxAcquiredBuffers was out of range (see above).
// * INVALID_OPERATION - attempting to call this after a producer connected.
virtual status_t setMaxAcquiredBufferCount(int maxAcquiredBuffers) = 0;
// setConsumerName sets the name used in logging
@ -184,16 +248,22 @@ public:
// GraphicBuffers of a defaultFormat if no format is specified
// in dequeueBuffer. Formats are enumerated in graphics.h; the
// initial default is HAL_PIXEL_FORMAT_RGBA_8888.
//
// Return of a value other than NO_ERROR means an unknown error has occurred.
virtual status_t setDefaultBufferFormat(uint32_t defaultFormat) = 0;
// setConsumerUsageBits will turn on additional usage bits for dequeueBuffer.
// These are merged with the bits passed to dequeueBuffer. The values are
// enumerated in gralloc.h, e.g. GRALLOC_USAGE_HW_RENDER; the default is 0.
//
// Return of a value other than NO_ERROR means an unknown error has occurred.
virtual status_t setConsumerUsageBits(uint32_t usage) = 0;
// setTransformHint bakes in rotation to buffers so overlays can be used.
// The values are enumerated in window.h, e.g.
// NATIVE_WINDOW_TRANSFORM_ROT_90. The default is 0 (no transform).
//
// Return of a value other than NO_ERROR means an unknown error has occurred.
virtual status_t setTransformHint(uint32_t hint) = 0;
// dump state into a string

188
include/gui/IGraphicBufferProducer.h
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@ -54,7 +54,11 @@ public:
DECLARE_META_INTERFACE(GraphicBufferProducer);
enum {
// A flag returned by dequeueBuffer when the client needs to call
// requestBuffer immediately thereafter.
BUFFER_NEEDS_REALLOCATION = 0x1,
// A flag returned by dequeueBuffer when all mirrored slots should be
// released by the client. This flag should always be processed first.
RELEASE_ALL_BUFFERS = 0x2,
};
@ -63,51 +67,140 @@ public:
// buffer to the given slot index, and the client is expected to mirror the
// slot->buffer mapping so that it's not necessary to transfer a
// GraphicBuffer for every dequeue operation.
//
// The slot must be in the range of [0, NUM_BUFFER_SLOTS).
//
// Return of a value other than NO_ERROR means an error has occurred:
// * NO_INIT - the buffer queue has been abandoned.
// * BAD_VALUE - one of the two conditions occurred:
// * slot was out of range (see above)
// * buffer specified by the slot is not dequeued
virtual status_t requestBuffer(int slot, sp<GraphicBuffer>* buf) = 0;
// setBufferCount sets the number of buffer slots available. Calling this
// will also cause all buffer slots to be emptied. The caller should empty
// its mirrored copy of the buffer slots when calling this method.
//
// This function should not be called when there are any dequeued buffer
// slots, doing so will result in a BAD_VALUE error returned.
//
// The buffer count should be at most NUM_BUFFER_SLOTS, but at least
// the minimum undequeued buffer count (inclusive). The minimum value
// can be obtained by calling query(NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS);
//
// Return of a value other than NO_ERROR means an error has occurred:
// * NO_INIT - the buffer queue has been abandoned.
// * BAD_VALUE - one of the below conditions occurred:
// * bufferCount was out of range (see above)
// * client has one or more buffers dequeued
virtual status_t setBufferCount(int bufferCount) = 0;
// dequeueBuffer requests a new buffer slot for the client to use. Ownership
// of the slot is transfered to the client, meaning that the server will not
// use the contents of the buffer associated with that slot. The slot index
// returned may or may not contain a buffer. If the slot is empty the client
// should call requestBuffer to assign a new buffer to that slot. The client
// is expected to either call cancelBuffer on the dequeued slot or to fill
// in the contents of its associated buffer contents and call queueBuffer.
// If dequeueBuffer return BUFFER_NEEDS_REALLOCATION, the client is
// use the contents of the buffer associated with that slot.
//
// The slot index returned may or may not contain a buffer (client-side).
// If the slot is empty the client should call requestBuffer to assign a new
// buffer to that slot.
//
// Once the client is done filling this buffer, it is expected to transfer
// buffer ownership back to the server with either cancelBuffer on
// the dequeued slot or to fill in the contents of its associated buffer
// contents and call queueBuffer.
//
// If dequeueBuffer returns the BUFFER_NEEDS_REALLOCATION flag, the client is
// expected to call requestBuffer immediately.
//
// If dequeueBuffer returns the RELEASE_ALL_BUFFERS flag, the client is
// expected to release all of the mirrored slot->buffer mappings.
//
// The fence parameter will be updated to hold the fence associated with
// the buffer. The contents of the buffer must not be overwritten until the
// fence signals. If the fence is NULL, the buffer may be written
// fence signals. If the fence is Fence::NO_FENCE, the buffer may be written
// immediately.
//
// The async parameter sets whether we're in asynchrnous mode for this
// deququeBuffer() call.
virtual status_t dequeueBuffer(int *slot, sp<Fence>* fence, bool async,
// The async parameter sets whether we're in asynchronous mode for this
// dequeueBuffer() call.
//
// The width and height parameters must be no greater than the minimum of
// GL_MAX_VIEWPORT_DIMS and GL_MAX_TEXTURE_SIZE (see: glGetIntegerv).
// An error due to invalid dimensions might not be reported until
// updateTexImage() is called. If width and height are both zero, the
// default values specified by setDefaultBufferSize() are used instead.
//
// The pixel formats are enumerated in <graphics.h>, e.g.
// HAL_PIXEL_FORMAT_RGBA_8888. If the format is 0, the default format
// will be used.
//
// The usage argument specifies gralloc buffer usage flags. The values
// are enumerated in <gralloc.h>, e.g. GRALLOC_USAGE_HW_RENDER. These
// will be merged with the usage flags specified by
// IGraphicBufferConsumer::setConsumerUsageBits.
//
// This call will block until a buffer is available to be dequeued. If
// both the producer and consumer are controlled by the app, then this call
// can never block and will return WOULD_BLOCK if no buffer is available.
//
// A non-negative value with flags set (see above) will be returned upon
// success.
//
// Return of a negative means an error has occurred:
// * NO_INIT - the buffer queue has been abandoned.
// * BAD_VALUE - one of the below conditions occurred:
// * both in async mode and buffer count was less than the
// max numbers of buffers that can be allocated at once
// * attempting dequeue more than one buffer at a time
// without setting the buffer count with setBufferCount()
// * -EBUSY - attempting to dequeue too many buffers at a time
// * WOULD_BLOCK - no buffer is currently available, and blocking is disabled
// since both the producer/consumer are controlled by app
// * NO_MEMORY - out of memory, cannot allocate the graphics buffer.
//
// All other negative values are an unknown error returned downstream
// from the graphics allocator (typically errno).
virtual status_t dequeueBuffer(int* slot, sp<Fence>* fence, bool async,
uint32_t w, uint32_t h, uint32_t format, uint32_t usage) = 0;
// queueBuffer indicates that the client has finished filling in the
// contents of the buffer associated with slot and transfers ownership of
// that slot back to the server. It is not valid to call queueBuffer on a
// slot that is not owned by the client or one for which a buffer associated
// via requestBuffer. In addition, a timestamp must be provided by the
// client for this buffer. The timestamp is measured in nanoseconds, and
// must be monotonically increasing. Its other properties (zero point, etc)
// that slot back to the server.
//
// It is not valid to call queueBuffer on a slot that is not owned
// by the client or one for which a buffer associated via requestBuffer
// (an attempt to do so will fail with a return value of BAD_VALUE).
//
// In addition, the input must be described by the client (as documented
// below). Any other properties (zero point, etc)
// are client-dependent, and should be documented by the client.
//
// The async parameter sets whether we're queuing a buffer in asynchronous mode.
// The slot must be in the range of [0, NUM_BUFFER_SLOTS).
//
// outWidth, outHeight and outTransform are filled with the default width
// and height of the window and current transform applied to buffers,
// respectively.
// Upon success, the output will be filled with meaningful values
// (refer to the documentation below).
//
// Return of a value other than NO_ERROR means an error has occurred:
// * NO_INIT - the buffer queue has been abandoned.
// * BAD_VALUE - one of the below conditions occurred:
// * fence was NULL
// * scaling mode was unknown
// * both in async mode and buffer count was less than the
// max numbers of buffers that can be allocated at once
// * slot index was out of range (see above).
// * the slot was not in the dequeued state
// * the slot was enqueued without requesting a buffer
// * crop rect is out of bounds of the buffer dimensions
struct QueueBufferInput : public Flattenable<QueueBufferInput> {
friend class Flattenable<QueueBufferInput>;
inline QueueBufferInput(const Parcel& parcel);
// timestamp - a monotonically increasing value in nanoseconds
// isAutoTimestamp - if the timestamp was synthesized at queue time
// crop - a crop rectangle that's used as a hint to the consumer
// scalingMode - a set of flags from NATIVE_WINDOW_SCALING_* in <window.h>
// transform - a set of flags from NATIVE_WINDOW_TRANSFORM_* in <window.h>
// async - if the buffer is queued in asynchronous mode
// fence - a fence that the consumer must wait on before reading the buffer,
// set this to Fence::NO_FENCE if the buffer is ready immediately
inline QueueBufferInput(int64_t timestamp, bool isAutoTimestamp,
const Rect& crop, int scalingMode, uint32_t transform, bool async,
const sp<Fence>& fence)
@ -143,8 +236,13 @@ public:
};
// QueueBufferOutput must be a POD structure
struct QueueBufferOutput {
struct __attribute__ ((__packed__)) QueueBufferOutput {
inline QueueBufferOutput() { }
// outWidth - filled with default width applied to the buffer
// outHeight - filled with default height applied to the buffer
// outTransformHint - filled with default transform applied to the buffer
// outNumPendingBuffers - num buffers queued that haven't yet been acquired
// (counting the currently queued buffer)
inline void deflate(uint32_t* outWidth,
uint32_t* outHeight,
uint32_t* outTransformHint,
@ -174,24 +272,53 @@ public:
// cancelBuffer indicates that the client does not wish to fill in the
// buffer associated with slot and transfers ownership of the slot back to
// the server.
//
// The buffer is not queued for use by the consumer.
//
// The buffer will not be overwritten until the fence signals. The fence
// will usually be the one obtained from dequeueBuffer.
virtual void cancelBuffer(int slot, const sp<Fence>& fence) = 0;
// query retrieves some information for this surface
// 'what' tokens allowed are that of android_natives.h
// 'what' tokens allowed are that of NATIVE_WINDOW_* in <window.h>
//
// Return of a value other than NO_ERROR means an error has occurred:
// * NO_INIT - the buffer queue has been abandoned.
// * BAD_VALUE - what was out of range
virtual int query(int what, int* value) = 0;
// connect attempts to connect a client API to the IGraphicBufferProducer.
// This must be called before any other IGraphicBufferProducer methods are
// called except for getAllocator.
// called except for getAllocator. A consumer must be already connected.
//
// This method will fail if the connect was previously called on the
// IGraphicBufferProducer and no corresponding disconnect call was made.
//
// outWidth, outHeight and outTransform are filled with the default width
// and height of the window and current transform applied to buffers,
// respectively. The token needs to be any binder object that lives in the
// The token needs to be any opaque binder object that lives in the
// producer process -- it is solely used for obtaining a death notification
// when the producer is killed.
//
// The api should be one of the NATIVE_WINDOW_API_* values in <window.h>
//
// The producerControlledByApp should be set to true if the producer is hosted
// by an untrusted process (typically app_process-forked processes). If both
// the producer and the consumer are app-controlled then all buffer queues
// will operate in async mode regardless of the async flag.
//
// Upon success, the output will be filled with meaningful data
// (refer to QueueBufferOutput documentation above).
//
// Return of a value other than NO_ERROR means an error has occurred:
// * NO_INIT - one of the following occurred:
// * the buffer queue was abandoned
// * no consumer has yet connected
// * BAD_VALUE - one of the following has occurred:
// * the producer is already connected
// * api was out of range (see above).
// * DEAD_OBJECT - the token is hosted by an already-dead process
//
// Additional negative errors may be returned by the internals, they
// should be treated as opaque fatal unrecoverable errors.
virtual status_t connect(const sp<IBinder>& token,
int api, bool producerControlledByApp, QueueBufferOutput* output) = 0;
@ -203,6 +330,17 @@ public:
//
// This method will fail if the the IGraphicBufferProducer is not currently
// connected to the specified client API.
//
// The api should be one of the NATIVE_WINDOW_API_* values in <window.h>
//
// Disconnecting from an abandoned IGraphicBufferProducer is legal and
// is considered a no-op.
//
// Return of a value other than NO_ERROR means an error has occurred:
// * BAD_VALUE - one of the following has occurred:
// * the api specified does not match the one that was connected
// * api was out of range (see above).
// * DEAD_OBJECT - the token is hosted by an already-dead process
virtual status_t disconnect(int api) = 0;
};

2
libs/gui/BufferQueue.cpp
View File

@ -703,7 +703,7 @@ retry:
return err;
}
void BufferQueue::binderDied(const wp<IBinder>& who) {
void BufferQueue::binderDied(const wp<IBinder>& who __attribute__((unused))) {
// If we're here, it means that a producer we were connected to died.
// We're GUARANTEED that we still are connected to it because it has no other way
// to get disconnected -- or -- we wouldn't be here because we're removing this

4
libs/gui/ConsumerBase.cpp
View File

@ -85,7 +85,7 @@ ConsumerBase::~ConsumerBase() {
"consumer is not abandoned!", mName.string());
}
void ConsumerBase::onLastStrongRef(const void* id) {
void ConsumerBase::onLastStrongRef(const void* id __attribute__((unused))) {
abandon();
}
@ -243,7 +243,7 @@ status_t ConsumerBase::releaseBufferLocked(
slot, mSlots[slot].mFrameNumber);
status_t err = mConsumer->releaseBuffer(slot, mSlots[slot].mFrameNumber,
display, eglFence, mSlots[slot].mFence);
if (err == BufferQueue::STALE_BUFFER_SLOT) {
if (err == IGraphicBufferConsumer::STALE_BUFFER_SLOT) {
freeBufferLocked(slot);
}

2
libs/gui/IGraphicBufferConsumer.cpp
View File

@ -223,7 +223,7 @@ public:
}
virtual status_t releaseBuffer(int buf, uint64_t frameNumber,
EGLDisplay display, EGLSyncKHR fence,
EGLDisplay display __attribute__((unused)), EGLSyncKHR fence __attribute__((unused)),
const sp<Fence>& releaseFence) {
Parcel data, reply;
data.writeInterfaceToken(IGraphicBufferConsumer::getInterfaceDescriptor());

4
libs/gui/Surface.cpp
View File

@ -251,7 +251,7 @@ int Surface::getSlotFromBufferLocked(
return BAD_VALUE;
}
int Surface::lockBuffer_DEPRECATED(android_native_buffer_t* buffer) {
int Surface::lockBuffer_DEPRECATED(android_native_buffer_t* buffer __attribute__((unused))) {
ALOGV("Surface::lockBuffer");
Mutex::Autolock lock(mMutex);
return OK;
@ -482,7 +482,7 @@ int Surface::dispatchLock(va_list args) {
return lock(outBuffer, inOutDirtyBounds);
}
int Surface::dispatchUnlockAndPost(va_list args) {
int Surface::dispatchUnlockAndPost(va_list args __attribute__((unused))) {
return unlockAndPost();
}