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/*
* Copyright 2019 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.
*/
#pragma once
#include <nativebase/nativebase.h>
#include <stdarg.h>
// apex is a superset of the NDK
#include <android/native_window.h>
__BEGIN_DECLS
/*
* perform bits that can be used with ANativeWindow_perform()
*
* This is only to support the intercepting methods below - these should notbe
* used directly otherwise.
*/
enum ANativeWindowPerform {
// clang-format off
ANATIVEWINDOW_PERFORM_SET_USAGE = 0,
ANATIVEWINDOW_PERFORM_SET_BUFFERS_GEOMETRY = 5,
ANATIVEWINDOW_PERFORM_SET_BUFFERS_FORMAT = 9,
ANATIVEWINDOW_PERFORM_SET_USAGE64 = 30,
// clang-format on
};
/**
* Prototype of the function that an ANativeWindow implementation would call
* when ANativeWindow_cancelBuffer is called.
*/
typedef int (*ANativeWindow_cancelBufferFn)(ANativeWindow* window, ANativeWindowBuffer* buffer,
int fenceFd);
/**
* Prototype of the function that intercepts an invocation of
* ANativeWindow_cancelBufferFn, along with a data pointer that's passed by the
* caller who set the interceptor, as well as arguments that would be
* passed to ANativeWindow_cancelBufferFn if it were to be called.
*/
typedef int (*ANativeWindow_cancelBufferInterceptor)(ANativeWindow* window,
ANativeWindow_cancelBufferFn cancelBuffer,
void* data, ANativeWindowBuffer* buffer,
int fenceFd);
/**
* Prototype of the function that an ANativeWindow implementation would call
* when ANativeWindow_dequeueBuffer is called.
*/
typedef int (*ANativeWindow_dequeueBufferFn)(ANativeWindow* window, ANativeWindowBuffer** buffer,
int* fenceFd);
/**
* Prototype of the function that intercepts an invocation of
* ANativeWindow_dequeueBufferFn, along with a data pointer that's passed by the
* caller who set the interceptor, as well as arguments that would be
* passed to ANativeWindow_dequeueBufferFn if it were to be called.
*/
typedef int (*ANativeWindow_dequeueBufferInterceptor)(ANativeWindow* window,
ANativeWindow_dequeueBufferFn dequeueBuffer,
void* data, ANativeWindowBuffer** buffer,
int* fenceFd);
/**
* Prototype of the function that an ANativeWindow implementation would call
* when ANativeWindow_perform is called.
*/
typedef int (*ANativeWindow_performFn)(ANativeWindow* window, int operation, va_list args);
/**
* Prototype of the function that intercepts an invocation of
* ANativeWindow_performFn, along with a data pointer that's passed by the
* caller who set the interceptor, as well as arguments that would be
* passed to ANativeWindow_performFn if it were to be called.
*/
typedef int (*ANativeWindow_performInterceptor)(ANativeWindow* window,
ANativeWindow_performFn perform, void* data,
int operation, va_list args);
/**
* Prototype of the function that an ANativeWindow implementation would call
* when ANativeWindow_queueBuffer is called.
*/
typedef int (*ANativeWindow_queueBufferFn)(ANativeWindow* window, ANativeWindowBuffer* buffer,
int fenceFd);
/**
* Prototype of the function that intercepts an invocation of
* ANativeWindow_queueBufferFn, along with a data pointer that's passed by the
* caller who set the interceptor, as well as arguments that would be
* passed to ANativeWindow_queueBufferFn if it were to be called.
*/
typedef int (*ANativeWindow_queueBufferInterceptor)(ANativeWindow* window,
ANativeWindow_queueBufferFn queueBuffer,
void* data, ANativeWindowBuffer* buffer,
int fenceFd);
/**
* Registers an interceptor for ANativeWindow_cancelBuffer. Instead of calling
* the underlying cancelBuffer function, instead the provided interceptor is
* called, which may optionally call the underlying cancelBuffer function. An
* optional data pointer is also provided to side-channel additional arguments.
*
* Note that usage of this should only be used for specialized use-cases by
* either the system partition or to Mainline modules. This should never be
* exposed to NDK or LL-NDK.
*
* Returns NO_ERROR on success, -errno if registration failed.
*/
int ANativeWindow_setCancelBufferInterceptor(ANativeWindow* window,
ANativeWindow_cancelBufferInterceptor interceptor,
void* data);
/**
* Registers an interceptor for ANativeWindow_dequeueBuffer. Instead of calling
* the underlying dequeueBuffer function, instead the provided interceptor is
* called, which may optionally call the underlying dequeueBuffer function. An
* optional data pointer is also provided to side-channel additional arguments.
*
* Note that usage of this should only be used for specialized use-cases by
* either the system partition or to Mainline modules. This should never be
* exposed to NDK or LL-NDK.
*
* Returns NO_ERROR on success, -errno if registration failed.
*/
int ANativeWindow_setDequeueBufferInterceptor(ANativeWindow* window,
ANativeWindow_dequeueBufferInterceptor interceptor,
void* data);
/**
* Registers an interceptor for ANativeWindow_perform. Instead of calling
* the underlying perform function, instead the provided interceptor is
* called, which may optionally call the underlying perform function. An
* optional data pointer is also provided to side-channel additional arguments.
*
* Note that usage of this should only be used for specialized use-cases by
* either the system partition or to Mainline modules. This should never be
* exposed to NDK or LL-NDK.
*
* Returns NO_ERROR on success, -errno if registration failed.
*/
int ANativeWindow_setPerformInterceptor(ANativeWindow* window,
ANativeWindow_performInterceptor interceptor, void* data);
/**
* Registers an interceptor for ANativeWindow_queueBuffer. Instead of calling
* the underlying queueBuffer function, instead the provided interceptor is
* called, which may optionally call the underlying queueBuffer function. An
* optional data pointer is also provided to side-channel additional arguments.
*
* Note that usage of this should only be used for specialized use-cases by
* either the system partition or to Mainline modules. This should never be
* exposed to NDK or LL-NDK.
*
* Returns NO_ERROR on success, -errno if registration failed.
*/
int ANativeWindow_setQueueBufferInterceptor(ANativeWindow* window,
ANativeWindow_queueBufferInterceptor interceptor,
void* data);
/**
* Retrieves how long it took for the last time a buffer was dequeued.
*
* \return the dequeue duration in nanoseconds
*/
int64_t ANativeWindow_getLastDequeueDuration(ANativeWindow* window);
/**
* Retrieves how long it took for the last time a buffer was queued.
*
* \return the queue duration in nanoseconds
*/
int64_t ANativeWindow_getLastQueueDuration(ANativeWindow* window);
/**
* Retrieves the system time in nanoseconds when the last time a buffer
* started to be dequeued.
*
* \return the start time in nanoseconds
*/
int64_t ANativeWindow_getLastDequeueStartTime(ANativeWindow* window);
/**
* Sets a timeout in nanoseconds for dequeue calls. All subsequent dequeue calls
* made by the window will return -ETIMEDOUT after the timeout if the dequeue
* takes too long.
*
* If the provided timeout is negative, hen this removes the previously configured
* timeout. The window then behaves as if ANativeWindow_setDequeueTimeout was
* never called.
*
* \return NO_ERROR on success
* \return BAD_VALUE if the dequeue timeout was unabled to be updated, as
* updating the dequeue timeout may change internals of the underlying window.
*/
int ANativeWindow_setDequeueTimeout(ANativeWindow* window, int64_t timeout);
__END_DECLS
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