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Mathias Agopiana6c0e202017-03-20 15:48:44 -07001/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17/*************************************************************************************************
18 *
19 * IMPORTANT:
20 *
21 * There is an old copy of this file in system/core/include/system/window.h, which exists only
22 * for backward source compatibility.
23 * But there are binaries out there as well, so this version of window.h must stay binary
24 * backward compatible with the one found in system/core.
25 *
26 *
27 * Source compatibility is also required for now, because this is how we're handling the
28 * transition from system/core/include (global include path) to nativewindow/include.
29 *
30 *************************************************************************************************/
31
32#pragma once
33
34#include <cutils/native_handle.h>
35#include <errno.h>
36#include <limits.h>
Steven Thomas3172e202020-01-06 19:25:30 -080037#include <stdbool.h>
Mathias Agopiana6c0e202017-03-20 15:48:44 -070038#include <stdint.h>
39#include <string.h>
40#include <sys/cdefs.h>
41#include <system/graphics.h>
42#include <unistd.h>
Mathias Agopiana6c0e202017-03-20 15:48:44 -070043
Alec Mouri9fa2cb62019-07-15 17:36:26 -070044// system/window.h is a superset of the vndk and apex apis
45#include <apex/window.h>
Mathias Agopiana6c0e202017-03-20 15:48:44 -070046#include <vndk/window.h>
47
48
49#ifndef __UNUSED
50#define __UNUSED __attribute__((__unused__))
51#endif
52#ifndef __deprecated
53#define __deprecated __attribute__((__deprecated__))
54#endif
55
56__BEGIN_DECLS
57
58/*****************************************************************************/
59
Mathias Agopian000879a2017-03-20 18:07:26 -070060#define ANDROID_NATIVE_WINDOW_MAGIC ANDROID_NATIVE_MAKE_CONSTANT('_','w','n','d')
Mathias Agopiana6c0e202017-03-20 15:48:44 -070061
62// ---------------------------------------------------------------------------
63
Mathias Agopiana6c0e202017-03-20 15:48:44 -070064/* attributes queriable with query() */
65enum {
Alec Mouri72670c52019-08-31 01:54:33 -070066 NATIVE_WINDOW_WIDTH = 0,
67 NATIVE_WINDOW_HEIGHT = 1,
68 NATIVE_WINDOW_FORMAT = 2,
Mathias Agopiana6c0e202017-03-20 15:48:44 -070069
Mathias Agopian000879a2017-03-20 18:07:26 -070070 /* see ANativeWindowQuery in vndk/window.h */
71 NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS = ANATIVEWINDOW_QUERY_MIN_UNDEQUEUED_BUFFERS,
Mathias Agopiana6c0e202017-03-20 15:48:44 -070072
73 /* Check whether queueBuffer operations on the ANativeWindow send the buffer
74 * to the window compositor. The query sets the returned 'value' argument
75 * to 1 if the ANativeWindow DOES send queued buffers directly to the window
76 * compositor and 0 if the buffers do not go directly to the window
77 * compositor.
78 *
79 * This can be used to determine whether protected buffer content should be
80 * sent to the ANativeWindow. Note, however, that a result of 1 does NOT
81 * indicate that queued buffers will be protected from applications or users
82 * capturing their contents. If that behavior is desired then some other
83 * mechanism (e.g. the GRALLOC_USAGE_PROTECTED flag) should be used in
84 * conjunction with this query.
85 */
86 NATIVE_WINDOW_QUEUES_TO_WINDOW_COMPOSER = 4,
87
88 /* Get the concrete type of a ANativeWindow. See below for the list of
89 * possible return values.
90 *
91 * This query should not be used outside the Android framework and will
92 * likely be removed in the near future.
93 */
94 NATIVE_WINDOW_CONCRETE_TYPE = 5,
95
Mathias Agopiana6c0e202017-03-20 15:48:44 -070096 /*
97 * Default width and height of ANativeWindow buffers, these are the
98 * dimensions of the window buffers irrespective of the
99 * NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS call and match the native window
100 * size unless overridden by NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS.
101 */
Mathias Agopian000879a2017-03-20 18:07:26 -0700102 NATIVE_WINDOW_DEFAULT_WIDTH = ANATIVEWINDOW_QUERY_DEFAULT_WIDTH,
103 NATIVE_WINDOW_DEFAULT_HEIGHT = ANATIVEWINDOW_QUERY_DEFAULT_HEIGHT,
Mathias Agopiana6c0e202017-03-20 15:48:44 -0700104
Mathias Agopian000879a2017-03-20 18:07:26 -0700105 /* see ANativeWindowQuery in vndk/window.h */
106 NATIVE_WINDOW_TRANSFORM_HINT = ANATIVEWINDOW_QUERY_TRANSFORM_HINT,
Mathias Agopiana6c0e202017-03-20 15:48:44 -0700107
108 /*
109 * Boolean that indicates whether the consumer is running more than
110 * one buffer behind the producer.
111 */
112 NATIVE_WINDOW_CONSUMER_RUNNING_BEHIND = 9,
113
114 /*
115 * The consumer gralloc usage bits currently set by the consumer.
116 * The values are defined in hardware/libhardware/include/gralloc.h.
117 */
Chia-I Wue2786ea2017-08-07 10:36:08 -0700118 NATIVE_WINDOW_CONSUMER_USAGE_BITS = 10, /* deprecated */
Mathias Agopiana6c0e202017-03-20 15:48:44 -0700119
120 /**
121 * Transformation that will by applied to buffers by the hwcomposer.
122 * This must not be set or checked by producer endpoints, and will
123 * disable the transform hint set in SurfaceFlinger (see
124 * NATIVE_WINDOW_TRANSFORM_HINT).
125 *
126 * INTENDED USE:
127 * Temporary - Please do not use this. This is intended only to be used
128 * by the camera's LEGACY mode.
129 *
130 * In situations where a SurfaceFlinger client wishes to set a transform
131 * that is not visible to the producer, and will always be applied in the
132 * hardware composer, the client can set this flag with
133 * native_window_set_buffers_sticky_transform. This can be used to rotate
134 * and flip buffers consumed by hardware composer without actually changing
135 * the aspect ratio of the buffers produced.
136 */
137 NATIVE_WINDOW_STICKY_TRANSFORM = 11,
138
139 /**
140 * The default data space for the buffers as set by the consumer.
141 * The values are defined in graphics.h.
142 */
143 NATIVE_WINDOW_DEFAULT_DATASPACE = 12,
144
Mathias Agopian000879a2017-03-20 18:07:26 -0700145 /* see ANativeWindowQuery in vndk/window.h */
146 NATIVE_WINDOW_BUFFER_AGE = ANATIVEWINDOW_QUERY_BUFFER_AGE,
Mathias Agopiana6c0e202017-03-20 15:48:44 -0700147
148 /*
149 * Returns the duration of the last dequeueBuffer call in microseconds
Alec Mouri72670c52019-08-31 01:54:33 -0700150 * Deprecated: please use NATIVE_WINDOW_GET_LAST_DEQUEUE_DURATION in
151 * perform() instead, which supports nanosecond precision.
Mathias Agopiana6c0e202017-03-20 15:48:44 -0700152 */
153 NATIVE_WINDOW_LAST_DEQUEUE_DURATION = 14,
154
155 /*
156 * Returns the duration of the last queueBuffer call in microseconds
Alec Mouri72670c52019-08-31 01:54:33 -0700157 * Deprecated: please use NATIVE_WINDOW_GET_LAST_QUEUE_DURATION in
158 * perform() instead, which supports nanosecond precision.
Mathias Agopiana6c0e202017-03-20 15:48:44 -0700159 */
160 NATIVE_WINDOW_LAST_QUEUE_DURATION = 15,
161
162 /*
163 * Returns the number of image layers that the ANativeWindow buffer
164 * contains. By default this is 1, unless a buffer is explicitly allocated
165 * to contain multiple layers.
166 */
167 NATIVE_WINDOW_LAYER_COUNT = 16,
168
169 /*
170 * Returns 1 if the native window is valid, 0 otherwise. native window is valid
171 * if it is safe (i.e. no crash will occur) to call any method on it.
172 */
173 NATIVE_WINDOW_IS_VALID = 17,
Brian Anderson6b376712017-04-04 10:51:39 -0700174
175 /*
176 * Returns 1 if NATIVE_WINDOW_GET_FRAME_TIMESTAMPS will return display
177 * present info, 0 if it won't.
178 */
179 NATIVE_WINDOW_FRAME_TIMESTAMPS_SUPPORTS_PRESENT = 18,
Jiwen 'Steve' Cai20419132017-04-21 18:49:53 -0700180
181 /*
182 * The consumer end is capable of handling protected buffers, i.e. buffer
183 * with GRALLOC_USAGE_PROTECTED usage bits on.
184 */
185 NATIVE_WINDOW_CONSUMER_IS_PROTECTED = 19,
Peiyong Lin654f87b2018-01-30 14:21:33 -0800186
187 /*
188 * Returns data space for the buffers.
189 */
190 NATIVE_WINDOW_DATASPACE = 20,
Yiwei Zhangdbd96152018-02-08 14:22:53 -0800191
192 /*
193 * Returns maxBufferCount set by BufferQueueConsumer
194 */
195 NATIVE_WINDOW_MAX_BUFFER_COUNT = 21,
Mathias Agopiana6c0e202017-03-20 15:48:44 -0700196};
197
198/* Valid operations for the (*perform)() hook.
199 *
200 * Values marked as 'deprecated' are supported, but have been superceded by
201 * other functionality.
202 *
203 * Values marked as 'private' should be considered private to the framework.
204 * HAL implementation code with access to an ANativeWindow should not use these,
205 * as it may not interact properly with the framework's use of the
206 * ANativeWindow.
207 */
208enum {
Valerie Haua82679d2018-11-21 09:31:43 -0800209 // clang-format off
Alec Mouri09d122a2019-11-25 10:00:53 -0800210 NATIVE_WINDOW_SET_USAGE = ANATIVEWINDOW_PERFORM_SET_USAGE, /* deprecated */
Yiwei Zhang538cedc2019-06-24 19:35:03 -0700211 NATIVE_WINDOW_CONNECT = 1, /* deprecated */
212 NATIVE_WINDOW_DISCONNECT = 2, /* deprecated */
213 NATIVE_WINDOW_SET_CROP = 3, /* private */
214 NATIVE_WINDOW_SET_BUFFER_COUNT = 4,
Alec Mouri09d122a2019-11-25 10:00:53 -0800215 NATIVE_WINDOW_SET_BUFFERS_GEOMETRY = ANATIVEWINDOW_PERFORM_SET_BUFFERS_GEOMETRY, /* deprecated */
Yiwei Zhang538cedc2019-06-24 19:35:03 -0700216 NATIVE_WINDOW_SET_BUFFERS_TRANSFORM = 6,
217 NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP = 7,
218 NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS = 8,
Alec Mouri09d122a2019-11-25 10:00:53 -0800219 NATIVE_WINDOW_SET_BUFFERS_FORMAT = ANATIVEWINDOW_PERFORM_SET_BUFFERS_FORMAT,
Yiwei Zhang538cedc2019-06-24 19:35:03 -0700220 NATIVE_WINDOW_SET_SCALING_MODE = 10, /* private */
221 NATIVE_WINDOW_LOCK = 11, /* private */
222 NATIVE_WINDOW_UNLOCK_AND_POST = 12, /* private */
223 NATIVE_WINDOW_API_CONNECT = 13, /* private */
224 NATIVE_WINDOW_API_DISCONNECT = 14, /* private */
225 NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS = 15, /* private */
226 NATIVE_WINDOW_SET_POST_TRANSFORM_CROP = 16, /* deprecated, unimplemented */
227 NATIVE_WINDOW_SET_BUFFERS_STICKY_TRANSFORM = 17, /* private */
228 NATIVE_WINDOW_SET_SIDEBAND_STREAM = 18,
229 NATIVE_WINDOW_SET_BUFFERS_DATASPACE = 19,
230 NATIVE_WINDOW_SET_SURFACE_DAMAGE = 20, /* private */
231 NATIVE_WINDOW_SET_SHARED_BUFFER_MODE = 21,
232 NATIVE_WINDOW_SET_AUTO_REFRESH = 22,
233 NATIVE_WINDOW_GET_REFRESH_CYCLE_DURATION = 23,
234 NATIVE_WINDOW_GET_NEXT_FRAME_ID = 24,
235 NATIVE_WINDOW_ENABLE_FRAME_TIMESTAMPS = 25,
236 NATIVE_WINDOW_GET_COMPOSITOR_TIMING = 26,
237 NATIVE_WINDOW_GET_FRAME_TIMESTAMPS = 27,
238 NATIVE_WINDOW_GET_WIDE_COLOR_SUPPORT = 28,
239 NATIVE_WINDOW_GET_HDR_SUPPORT = 29,
Alec Mouri09d122a2019-11-25 10:00:53 -0800240 NATIVE_WINDOW_SET_USAGE64 = ANATIVEWINDOW_PERFORM_SET_USAGE64,
Yiwei Zhang538cedc2019-06-24 19:35:03 -0700241 NATIVE_WINDOW_GET_CONSUMER_USAGE64 = 31,
242 NATIVE_WINDOW_SET_BUFFERS_SMPTE2086_METADATA = 32,
243 NATIVE_WINDOW_SET_BUFFERS_CTA861_3_METADATA = 33,
Valerie Haua82679d2018-11-21 09:31:43 -0800244 NATIVE_WINDOW_SET_BUFFERS_HDR10_PLUS_METADATA = 34,
Yiwei Zhang538cedc2019-06-24 19:35:03 -0700245 NATIVE_WINDOW_SET_AUTO_PREROTATION = 35,
Alec Mouria1619662019-08-21 19:30:48 -0700246 NATIVE_WINDOW_GET_LAST_DEQUEUE_START = 36, /* private */
Alec Mouri04fdb602019-08-23 19:41:43 -0700247 NATIVE_WINDOW_SET_DEQUEUE_TIMEOUT = 37, /* private */
Alec Mouri72670c52019-08-31 01:54:33 -0700248 NATIVE_WINDOW_GET_LAST_DEQUEUE_DURATION = 38, /* private */
249 NATIVE_WINDOW_GET_LAST_QUEUE_DURATION = 39, /* private */
Steven Thomas3172e202020-01-06 19:25:30 -0800250 NATIVE_WINDOW_SET_FRAME_RATE = 40,
Alec Mouri09d122a2019-11-25 10:00:53 -0800251 NATIVE_WINDOW_SET_CANCEL_INTERCEPTOR = 41, /* private */
252 NATIVE_WINDOW_SET_DEQUEUE_INTERCEPTOR = 42, /* private */
253 NATIVE_WINDOW_SET_PERFORM_INTERCEPTOR = 43, /* private */
254 NATIVE_WINDOW_SET_QUEUE_INTERCEPTOR = 44, /* private */
Alec Mouri74aef6d2019-12-09 17:10:24 -0800255 NATIVE_WINDOW_ALLOCATE_BUFFERS = 45, /* private */
Alec Mourief0b1532019-12-17 09:39:07 -0800256 NATIVE_WINDOW_GET_LAST_QUEUED_BUFFER = 46, /* private */
John Reck401cda62020-05-07 16:04:41 -0700257 NATIVE_WINDOW_SET_QUERY_INTERCEPTOR = 47, /* private */
Ady Abraham74e17562020-08-24 18:18:19 -0700258 NATIVE_WINDOW_SET_FRAME_TIMELINE_VSYNC = 48, /* private */
Valerie Haua82679d2018-11-21 09:31:43 -0800259 // clang-format on
Mathias Agopiana6c0e202017-03-20 15:48:44 -0700260};
261
262/* parameter for NATIVE_WINDOW_[API_][DIS]CONNECT */
263enum {
264 /* Buffers will be queued by EGL via eglSwapBuffers after being filled using
265 * OpenGL ES.
266 */
267 NATIVE_WINDOW_API_EGL = 1,
268
269 /* Buffers will be queued after being filled using the CPU
270 */
271 NATIVE_WINDOW_API_CPU = 2,
272
273 /* Buffers will be queued by Stagefright after being filled by a video
274 * decoder. The video decoder can either be a software or hardware decoder.
275 */
276 NATIVE_WINDOW_API_MEDIA = 3,
277
278 /* Buffers will be queued by the the camera HAL.
279 */
280 NATIVE_WINDOW_API_CAMERA = 4,
281};
282
283/* parameter for NATIVE_WINDOW_SET_BUFFERS_TRANSFORM */
284enum {
285 /* flip source image horizontally */
286 NATIVE_WINDOW_TRANSFORM_FLIP_H = HAL_TRANSFORM_FLIP_H ,
287 /* flip source image vertically */
288 NATIVE_WINDOW_TRANSFORM_FLIP_V = HAL_TRANSFORM_FLIP_V,
289 /* rotate source image 90 degrees clock-wise, and is applied after TRANSFORM_FLIP_{H|V} */
290 NATIVE_WINDOW_TRANSFORM_ROT_90 = HAL_TRANSFORM_ROT_90,
291 /* rotate source image 180 degrees */
292 NATIVE_WINDOW_TRANSFORM_ROT_180 = HAL_TRANSFORM_ROT_180,
293 /* rotate source image 270 degrees clock-wise */
294 NATIVE_WINDOW_TRANSFORM_ROT_270 = HAL_TRANSFORM_ROT_270,
295 /* transforms source by the inverse transform of the screen it is displayed onto. This
296 * transform is applied last */
297 NATIVE_WINDOW_TRANSFORM_INVERSE_DISPLAY = 0x08
298};
299
300/* parameter for NATIVE_WINDOW_SET_SCALING_MODE
301 * keep in sync with Surface.java in frameworks/base */
302enum {
303 /* the window content is not updated (frozen) until a buffer of
304 * the window size is received (enqueued)
305 */
306 NATIVE_WINDOW_SCALING_MODE_FREEZE = 0,
307 /* the buffer is scaled in both dimensions to match the window size */
308 NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW = 1,
309 /* the buffer is scaled uniformly such that the smaller dimension
310 * of the buffer matches the window size (cropping in the process)
311 */
312 NATIVE_WINDOW_SCALING_MODE_SCALE_CROP = 2,
313 /* the window is clipped to the size of the buffer's crop rectangle; pixels
314 * outside the crop rectangle are treated as if they are completely
315 * transparent.
316 */
317 NATIVE_WINDOW_SCALING_MODE_NO_SCALE_CROP = 3,
318};
319
320/* values returned by the NATIVE_WINDOW_CONCRETE_TYPE query */
321enum {
322 NATIVE_WINDOW_FRAMEBUFFER = 0, /* FramebufferNativeWindow */
323 NATIVE_WINDOW_SURFACE = 1, /* Surface */
324};
325
326/* parameter for NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP
327 *
328 * Special timestamp value to indicate that timestamps should be auto-generated
329 * by the native window when queueBuffer is called. This is equal to INT64_MIN,
330 * defined directly to avoid problems with C99/C++ inclusion of stdint.h.
331 */
332static const int64_t NATIVE_WINDOW_TIMESTAMP_AUTO = (-9223372036854775807LL-1);
333
Brian Andersondc96fdf2017-03-20 16:54:25 -0700334/* parameter for NATIVE_WINDOW_GET_FRAME_TIMESTAMPS
335 *
336 * Special timestamp value to indicate the timestamps aren't yet known or
337 * that they are invalid.
338 */
339static const int64_t NATIVE_WINDOW_TIMESTAMP_PENDING = -2;
340static const int64_t NATIVE_WINDOW_TIMESTAMP_INVALID = -1;
341
Mathias Agopiana6c0e202017-03-20 15:48:44 -0700342struct ANativeWindow
343{
344#ifdef __cplusplus
345 ANativeWindow()
346 : flags(0), minSwapInterval(0), maxSwapInterval(0), xdpi(0), ydpi(0)
347 {
348 common.magic = ANDROID_NATIVE_WINDOW_MAGIC;
349 common.version = sizeof(ANativeWindow);
350 memset(common.reserved, 0, sizeof(common.reserved));
351 }
352
353 /* Implement the methods that sp<ANativeWindow> expects so that it
354 can be used to automatically refcount ANativeWindow's. */
355 void incStrong(const void* /*id*/) const {
356 common.incRef(const_cast<android_native_base_t*>(&common));
357 }
358 void decStrong(const void* /*id*/) const {
359 common.decRef(const_cast<android_native_base_t*>(&common));
360 }
361#endif
362
363 struct android_native_base_t common;
364
365 /* flags describing some attributes of this surface or its updater */
366 const uint32_t flags;
367
368 /* min swap interval supported by this updated */
369 const int minSwapInterval;
370
371 /* max swap interval supported by this updated */
372 const int maxSwapInterval;
373
374 /* horizontal and vertical resolution in DPI */
375 const float xdpi;
376 const float ydpi;
377
378 /* Some storage reserved for the OEM's driver. */
379 intptr_t oem[4];
380
381 /*
382 * Set the swap interval for this surface.
383 *
384 * Returns 0 on success or -errno on error.
385 */
386 int (*setSwapInterval)(struct ANativeWindow* window,
387 int interval);
388
389 /*
390 * Hook called by EGL to acquire a buffer. After this call, the buffer
391 * is not locked, so its content cannot be modified. This call may block if
392 * no buffers are available.
393 *
394 * The window holds a reference to the buffer between dequeueBuffer and
395 * either queueBuffer or cancelBuffer, so clients only need their own
396 * reference if they might use the buffer after queueing or canceling it.
397 * Holding a reference to a buffer after queueing or canceling it is only
398 * allowed if a specific buffer count has been set.
399 *
400 * Returns 0 on success or -errno on error.
401 *
402 * XXX: This function is deprecated. It will continue to work for some
403 * time for binary compatibility, but the new dequeueBuffer function that
404 * outputs a fence file descriptor should be used in its place.
405 */
406 int (*dequeueBuffer_DEPRECATED)(struct ANativeWindow* window,
407 struct ANativeWindowBuffer** buffer);
408
409 /*
410 * hook called by EGL to lock a buffer. This MUST be called before modifying
411 * the content of a buffer. The buffer must have been acquired with
412 * dequeueBuffer first.
413 *
414 * Returns 0 on success or -errno on error.
415 *
416 * XXX: This function is deprecated. It will continue to work for some
417 * time for binary compatibility, but it is essentially a no-op, and calls
418 * to it should be removed.
419 */
420 int (*lockBuffer_DEPRECATED)(struct ANativeWindow* window,
421 struct ANativeWindowBuffer* buffer);
422
423 /*
424 * Hook called by EGL when modifications to the render buffer are done.
425 * This unlocks and post the buffer.
426 *
427 * The window holds a reference to the buffer between dequeueBuffer and
428 * either queueBuffer or cancelBuffer, so clients only need their own
429 * reference if they might use the buffer after queueing or canceling it.
430 * Holding a reference to a buffer after queueing or canceling it is only
431 * allowed if a specific buffer count has been set.
432 *
433 * Buffers MUST be queued in the same order than they were dequeued.
434 *
435 * Returns 0 on success or -errno on error.
436 *
437 * XXX: This function is deprecated. It will continue to work for some
438 * time for binary compatibility, but the new queueBuffer function that
439 * takes a fence file descriptor should be used in its place (pass a value
440 * of -1 for the fence file descriptor if there is no valid one to pass).
441 */
442 int (*queueBuffer_DEPRECATED)(struct ANativeWindow* window,
443 struct ANativeWindowBuffer* buffer);
444
445 /*
446 * hook used to retrieve information about the native window.
447 *
448 * Returns 0 on success or -errno on error.
449 */
450 int (*query)(const struct ANativeWindow* window,
451 int what, int* value);
452
453 /*
454 * hook used to perform various operations on the surface.
455 * (*perform)() is a generic mechanism to add functionality to
456 * ANativeWindow while keeping backward binary compatibility.
457 *
458 * DO NOT CALL THIS HOOK DIRECTLY. Instead, use the helper functions
459 * defined below.
460 *
461 * (*perform)() returns -ENOENT if the 'what' parameter is not supported
462 * by the surface's implementation.
463 *
464 * See above for a list of valid operations, such as
465 * NATIVE_WINDOW_SET_USAGE or NATIVE_WINDOW_CONNECT
466 */
467 int (*perform)(struct ANativeWindow* window,
468 int operation, ... );
469
470 /*
471 * Hook used to cancel a buffer that has been dequeued.
472 * No synchronization is performed between dequeue() and cancel(), so
473 * either external synchronization is needed, or these functions must be
474 * called from the same thread.
475 *
476 * The window holds a reference to the buffer between dequeueBuffer and
477 * either queueBuffer or cancelBuffer, so clients only need their own
478 * reference if they might use the buffer after queueing or canceling it.
479 * Holding a reference to a buffer after queueing or canceling it is only
480 * allowed if a specific buffer count has been set.
481 *
482 * XXX: This function is deprecated. It will continue to work for some
483 * time for binary compatibility, but the new cancelBuffer function that
484 * takes a fence file descriptor should be used in its place (pass a value
485 * of -1 for the fence file descriptor if there is no valid one to pass).
486 */
487 int (*cancelBuffer_DEPRECATED)(struct ANativeWindow* window,
488 struct ANativeWindowBuffer* buffer);
489
490 /*
491 * Hook called by EGL to acquire a buffer. This call may block if no
492 * buffers are available.
493 *
494 * The window holds a reference to the buffer between dequeueBuffer and
495 * either queueBuffer or cancelBuffer, so clients only need their own
496 * reference if they might use the buffer after queueing or canceling it.
497 * Holding a reference to a buffer after queueing or canceling it is only
498 * allowed if a specific buffer count has been set.
499 *
500 * The libsync fence file descriptor returned in the int pointed to by the
501 * fenceFd argument will refer to the fence that must signal before the
502 * dequeued buffer may be written to. A value of -1 indicates that the
503 * caller may access the buffer immediately without waiting on a fence. If
504 * a valid file descriptor is returned (i.e. any value except -1) then the
505 * caller is responsible for closing the file descriptor.
506 *
507 * Returns 0 on success or -errno on error.
508 */
509 int (*dequeueBuffer)(struct ANativeWindow* window,
510 struct ANativeWindowBuffer** buffer, int* fenceFd);
511
512 /*
513 * Hook called by EGL when modifications to the render buffer are done.
514 * This unlocks and post the buffer.
515 *
516 * The window holds a reference to the buffer between dequeueBuffer and
517 * either queueBuffer or cancelBuffer, so clients only need their own
518 * reference if they might use the buffer after queueing or canceling it.
519 * Holding a reference to a buffer after queueing or canceling it is only
520 * allowed if a specific buffer count has been set.
521 *
522 * The fenceFd argument specifies a libsync fence file descriptor for a
523 * fence that must signal before the buffer can be accessed. If the buffer
524 * can be accessed immediately then a value of -1 should be used. The
525 * caller must not use the file descriptor after it is passed to
526 * queueBuffer, and the ANativeWindow implementation is responsible for
527 * closing it.
528 *
529 * Returns 0 on success or -errno on error.
530 */
531 int (*queueBuffer)(struct ANativeWindow* window,
532 struct ANativeWindowBuffer* buffer, int fenceFd);
533
534 /*
535 * Hook used to cancel a buffer that has been dequeued.
536 * No synchronization is performed between dequeue() and cancel(), so
537 * either external synchronization is needed, or these functions must be
538 * called from the same thread.
539 *
540 * The window holds a reference to the buffer between dequeueBuffer and
541 * either queueBuffer or cancelBuffer, so clients only need their own
542 * reference if they might use the buffer after queueing or canceling it.
543 * Holding a reference to a buffer after queueing or canceling it is only
544 * allowed if a specific buffer count has been set.
545 *
546 * The fenceFd argument specifies a libsync fence file decsriptor for a
547 * fence that must signal before the buffer can be accessed. If the buffer
548 * can be accessed immediately then a value of -1 should be used.
549 *
550 * Note that if the client has not waited on the fence that was returned
551 * from dequeueBuffer, that same fence should be passed to cancelBuffer to
552 * ensure that future uses of the buffer are preceded by a wait on that
553 * fence. The caller must not use the file descriptor after it is passed
554 * to cancelBuffer, and the ANativeWindow implementation is responsible for
555 * closing it.
556 *
557 * Returns 0 on success or -errno on error.
558 */
559 int (*cancelBuffer)(struct ANativeWindow* window,
560 struct ANativeWindowBuffer* buffer, int fenceFd);
561};
562
563 /* Backwards compatibility: use ANativeWindow (struct ANativeWindow in C).
564 * android_native_window_t is deprecated.
565 */
Mathias Agopiana6c0e202017-03-20 15:48:44 -0700566typedef struct ANativeWindow android_native_window_t __deprecated;
567
568/*
Mathias Agopiancb496ac2017-05-22 14:21:00 -0700569 * native_window_set_usage64(..., usage)
Mathias Agopiana6c0e202017-03-20 15:48:44 -0700570 * Sets the intended usage flags for the next buffers
571 * acquired with (*lockBuffer)() and on.
Mathias Agopiancb496ac2017-05-22 14:21:00 -0700572 *
573 * Valid usage flags are defined in android/hardware_buffer.h
574 * All AHARDWAREBUFFER_USAGE_* flags can be specified as needed.
575 *
Mathias Agopiana6c0e202017-03-20 15:48:44 -0700576 * Calling this function will usually cause following buffers to be
577 * reallocated.
578 */
Mathias Agopiancb496ac2017-05-22 14:21:00 -0700579static inline int native_window_set_usage(struct ANativeWindow* window, uint64_t usage) {
580 return window->perform(window, NATIVE_WINDOW_SET_USAGE64, usage);
Mathias Agopiana6c0e202017-03-20 15:48:44 -0700581}
582
583/* deprecated. Always returns 0. Don't call. */
584static inline int native_window_connect(
585 struct ANativeWindow* window __UNUSED, int api __UNUSED) __deprecated;
586
587static inline int native_window_connect(
588 struct ANativeWindow* window __UNUSED, int api __UNUSED) {
589 return 0;
590}
591
592/* deprecated. Always returns 0. Don't call. */
593static inline int native_window_disconnect(
594 struct ANativeWindow* window __UNUSED, int api __UNUSED) __deprecated;
595
596static inline int native_window_disconnect(
597 struct ANativeWindow* window __UNUSED, int api __UNUSED) {
598 return 0;
599}
600
601/*
602 * native_window_set_crop(..., crop)
603 * Sets which region of the next queued buffers needs to be considered.
604 * Depending on the scaling mode, a buffer's crop region is scaled and/or
605 * cropped to match the surface's size. This function sets the crop in
606 * pre-transformed buffer pixel coordinates.
607 *
608 * The specified crop region applies to all buffers queued after it is called.
609 *
610 * If 'crop' is NULL, subsequently queued buffers won't be cropped.
611 *
612 * An error is returned if for instance the crop region is invalid, out of the
613 * buffer's bound or if the window is invalid.
614 */
615static inline int native_window_set_crop(
616 struct ANativeWindow* window,
617 android_native_rect_t const * crop)
618{
619 return window->perform(window, NATIVE_WINDOW_SET_CROP, crop);
620}
621
622/*
Mathias Agopiana6c0e202017-03-20 15:48:44 -0700623 * native_window_set_buffer_count(..., count)
624 * Sets the number of buffers associated with this native window.
625 */
626static inline int native_window_set_buffer_count(
627 struct ANativeWindow* window,
628 size_t bufferCount)
629{
630 return window->perform(window, NATIVE_WINDOW_SET_BUFFER_COUNT, bufferCount);
631}
632
633/*
634 * native_window_set_buffers_geometry(..., int w, int h, int format)
635 * All buffers dequeued after this call will have the dimensions and format
636 * specified. A successful call to this function has the same effect as calling
637 * native_window_set_buffers_size and native_window_set_buffers_format.
638 *
639 * XXX: This function is deprecated. The native_window_set_buffers_dimensions
640 * and native_window_set_buffers_format functions should be used instead.
641 */
642static inline int native_window_set_buffers_geometry(
643 struct ANativeWindow* window,
644 int w, int h, int format) __deprecated;
645
646static inline int native_window_set_buffers_geometry(
647 struct ANativeWindow* window,
648 int w, int h, int format)
649{
650 return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_GEOMETRY,
651 w, h, format);
652}
653
654/*
655 * native_window_set_buffers_dimensions(..., int w, int h)
656 * All buffers dequeued after this call will have the dimensions specified.
657 * In particular, all buffers will have a fixed-size, independent from the
658 * native-window size. They will be scaled according to the scaling mode
659 * (see native_window_set_scaling_mode) upon window composition.
660 *
661 * If w and h are 0, the normal behavior is restored. That is, dequeued buffers
662 * following this call will be sized to match the window's size.
663 *
664 * Calling this function will reset the window crop to a NULL value, which
665 * disables cropping of the buffers.
666 */
667static inline int native_window_set_buffers_dimensions(
668 struct ANativeWindow* window,
669 int w, int h)
670{
671 return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS,
672 w, h);
673}
674
675/*
676 * native_window_set_buffers_user_dimensions(..., int w, int h)
677 *
678 * Sets the user buffer size for the window, which overrides the
679 * window's size. All buffers dequeued after this call will have the
680 * dimensions specified unless overridden by
681 * native_window_set_buffers_dimensions. All buffers will have a
682 * fixed-size, independent from the native-window size. They will be
683 * scaled according to the scaling mode (see
684 * native_window_set_scaling_mode) upon window composition.
685 *
686 * If w and h are 0, the normal behavior is restored. That is, the
687 * default buffer size will match the windows's size.
688 *
689 * Calling this function will reset the window crop to a NULL value, which
690 * disables cropping of the buffers.
691 */
692static inline int native_window_set_buffers_user_dimensions(
693 struct ANativeWindow* window,
694 int w, int h)
695{
696 return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS,
697 w, h);
698}
699
700/*
701 * native_window_set_buffers_format(..., int format)
702 * All buffers dequeued after this call will have the format specified.
703 *
704 * If the specified format is 0, the default buffer format will be used.
705 */
706static inline int native_window_set_buffers_format(
707 struct ANativeWindow* window,
708 int format)
709{
710 return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_FORMAT, format);
711}
712
713/*
714 * native_window_set_buffers_data_space(..., int dataSpace)
715 * All buffers queued after this call will be associated with the dataSpace
716 * parameter specified.
717 *
718 * dataSpace specifies additional information about the buffer that's dependent
719 * on the buffer format and the endpoints. For example, it can be used to convey
720 * the color space of the image data in the buffer, or it can be used to
721 * indicate that the buffers contain depth measurement data instead of color
722 * images. The default dataSpace is 0, HAL_DATASPACE_UNKNOWN, unless it has been
723 * overridden by the consumer.
724 */
725static inline int native_window_set_buffers_data_space(
726 struct ANativeWindow* window,
727 android_dataspace_t dataSpace)
728{
729 return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_DATASPACE,
730 dataSpace);
731}
732
733/*
Courtney Goeltzenleuchter9bad0d72017-12-19 12:34:34 -0700734 * native_window_set_buffers_smpte2086_metadata(..., metadata)
735 * All buffers queued after this call will be associated with the SMPTE
736 * ST.2086 metadata specified.
737 *
738 * metadata specifies additional information about the contents of the buffer
739 * that may affect how it's displayed. When it is nullptr, it means no such
740 * information is available. No SMPTE ST.2086 metadata is associated with the
741 * buffers by default.
742 */
743static inline int native_window_set_buffers_smpte2086_metadata(
744 struct ANativeWindow* window,
745 const struct android_smpte2086_metadata* metadata)
746{
747 return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_SMPTE2086_METADATA,
748 metadata);
749}
750
751/*
752 * native_window_set_buffers_cta861_3_metadata(..., metadata)
753 * All buffers queued after this call will be associated with the CTA-861.3
754 * metadata specified.
755 *
756 * metadata specifies additional information about the contents of the buffer
757 * that may affect how it's displayed. When it is nullptr, it means no such
758 * information is available. No CTA-861.3 metadata is associated with the
759 * buffers by default.
760 */
761static inline int native_window_set_buffers_cta861_3_metadata(
762 struct ANativeWindow* window,
763 const struct android_cta861_3_metadata* metadata)
764{
765 return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_CTA861_3_METADATA,
766 metadata);
767}
768
769/*
Valerie Haua82679d2018-11-21 09:31:43 -0800770 * native_window_set_buffers_hdr10_plus_metadata(..., metadata)
771 * All buffers queued after this call will be associated with the
772 * HDR10+ dynamic metadata specified.
773 *
774 * metadata specifies additional dynamic information about the
775 * contents of the buffer that may affect how it is displayed. When
776 * it is nullptr, it means no such information is available. No
777 * HDR10+ dynamic emtadata is associated with the buffers by default.
778 *
779 * Parameter "size" refers to the length of the metadata blob pointed to
780 * by parameter "data". The metadata blob will adhere to the HDR10+ SEI
781 * message standard.
782 */
783static inline int native_window_set_buffers_hdr10_plus_metadata(struct ANativeWindow* window,
784 const size_t size,
785 const uint8_t* metadata) {
786 return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_HDR10_PLUS_METADATA, size,
787 metadata);
788}
789
790/*
Mathias Agopiana6c0e202017-03-20 15:48:44 -0700791 * native_window_set_buffers_transform(..., int transform)
792 * All buffers queued after this call will be displayed transformed according
793 * to the transform parameter specified.
794 */
795static inline int native_window_set_buffers_transform(
796 struct ANativeWindow* window,
797 int transform)
798{
799 return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_TRANSFORM,
800 transform);
801}
802
803/*
804 * native_window_set_buffers_sticky_transform(..., int transform)
805 * All buffers queued after this call will be displayed transformed according
806 * to the transform parameter specified applied on top of the regular buffer
807 * transform. Setting this transform will disable the transform hint.
808 *
809 * Temporary - This is only intended to be used by the LEGACY camera mode, do
810 * not use this for anything else.
811 */
812static inline int native_window_set_buffers_sticky_transform(
813 struct ANativeWindow* window,
814 int transform)
815{
816 return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_STICKY_TRANSFORM,
817 transform);
818}
819
820/*
821 * native_window_set_buffers_timestamp(..., int64_t timestamp)
822 * All buffers queued after this call will be associated with the timestamp
823 * parameter specified. If the timestamp is set to NATIVE_WINDOW_TIMESTAMP_AUTO
824 * (the default), timestamps will be generated automatically when queueBuffer is
825 * called. The timestamp is measured in nanoseconds, and is normally monotonically
826 * increasing. The timestamp should be unaffected by time-of-day adjustments,
827 * and for a camera should be strictly monotonic but for a media player may be
828 * reset when the position is set.
829 */
830static inline int native_window_set_buffers_timestamp(
831 struct ANativeWindow* window,
832 int64_t timestamp)
833{
834 return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP,
835 timestamp);
836}
837
838/*
839 * native_window_set_scaling_mode(..., int mode)
840 * All buffers queued after this call will be associated with the scaling mode
841 * specified.
842 */
843static inline int native_window_set_scaling_mode(
844 struct ANativeWindow* window,
845 int mode)
846{
847 return window->perform(window, NATIVE_WINDOW_SET_SCALING_MODE,
848 mode);
849}
850
851/*
852 * native_window_api_connect(..., int api)
853 * connects an API to this window. only one API can be connected at a time.
854 * Returns -EINVAL if for some reason the window cannot be connected, which
855 * can happen if it's connected to some other API.
856 */
857static inline int native_window_api_connect(
858 struct ANativeWindow* window, int api)
859{
860 return window->perform(window, NATIVE_WINDOW_API_CONNECT, api);
861}
862
863/*
864 * native_window_api_disconnect(..., int api)
865 * disconnect the API from this window.
866 * An error is returned if for instance the window wasn't connected in the
867 * first place.
868 */
869static inline int native_window_api_disconnect(
870 struct ANativeWindow* window, int api)
871{
872 return window->perform(window, NATIVE_WINDOW_API_DISCONNECT, api);
873}
874
875/*
876 * native_window_dequeue_buffer_and_wait(...)
877 * Dequeue a buffer and wait on the fence associated with that buffer. The
878 * buffer may safely be accessed immediately upon this function returning. An
879 * error is returned if either of the dequeue or the wait operations fail.
880 */
881static inline int native_window_dequeue_buffer_and_wait(ANativeWindow *anw,
882 struct ANativeWindowBuffer** anb) {
883 return anw->dequeueBuffer_DEPRECATED(anw, anb);
884}
885
886/*
887 * native_window_set_sideband_stream(..., native_handle_t*)
888 * Attach a sideband buffer stream to a native window.
889 */
890static inline int native_window_set_sideband_stream(
891 struct ANativeWindow* window,
892 native_handle_t* sidebandHandle)
893{
894 return window->perform(window, NATIVE_WINDOW_SET_SIDEBAND_STREAM,
895 sidebandHandle);
896}
897
898/*
899 * native_window_set_surface_damage(..., android_native_rect_t* rects, int numRects)
900 * Set the surface damage (i.e., the region of the surface that has changed
901 * since the previous frame). The damage set by this call will be reset (to the
902 * default of full-surface damage) after calling queue, so this must be called
903 * prior to every frame with damage that does not cover the whole surface if the
904 * caller desires downstream consumers to use this optimization.
905 *
906 * The damage region is specified as an array of rectangles, with the important
907 * caveat that the origin of the surface is considered to be the bottom-left
908 * corner, as in OpenGL ES.
909 *
910 * If numRects is set to 0, rects may be NULL, and the surface damage will be
911 * set to the full surface (the same as if this function had not been called for
912 * this frame).
913 */
914static inline int native_window_set_surface_damage(
915 struct ANativeWindow* window,
916 const android_native_rect_t* rects, size_t numRects)
917{
918 return window->perform(window, NATIVE_WINDOW_SET_SURFACE_DAMAGE,
919 rects, numRects);
920}
921
922/*
923 * native_window_set_shared_buffer_mode(..., bool sharedBufferMode)
924 * Enable/disable shared buffer mode
925 */
926static inline int native_window_set_shared_buffer_mode(
927 struct ANativeWindow* window,
928 bool sharedBufferMode)
929{
930 return window->perform(window, NATIVE_WINDOW_SET_SHARED_BUFFER_MODE,
931 sharedBufferMode);
932}
933
934/*
935 * native_window_set_auto_refresh(..., autoRefresh)
936 * Enable/disable auto refresh when in shared buffer mode
937 */
938static inline int native_window_set_auto_refresh(
939 struct ANativeWindow* window,
940 bool autoRefresh)
941{
942 return window->perform(window, NATIVE_WINDOW_SET_AUTO_REFRESH, autoRefresh);
943}
944
945static inline int native_window_get_refresh_cycle_duration(
946 struct ANativeWindow* window,
947 int64_t* outRefreshDuration)
948{
949 return window->perform(window, NATIVE_WINDOW_GET_REFRESH_CYCLE_DURATION,
950 outRefreshDuration);
951}
952
953static inline int native_window_get_next_frame_id(
954 struct ANativeWindow* window, uint64_t* frameId)
955{
956 return window->perform(window, NATIVE_WINDOW_GET_NEXT_FRAME_ID, frameId);
957}
958
959static inline int native_window_enable_frame_timestamps(
960 struct ANativeWindow* window, bool enable)
961{
962 return window->perform(window, NATIVE_WINDOW_ENABLE_FRAME_TIMESTAMPS,
963 enable);
964}
965
966static inline int native_window_get_compositor_timing(
967 struct ANativeWindow* window,
968 int64_t* compositeDeadline, int64_t* compositeInterval,
969 int64_t* compositeToPresentLatency)
970{
971 return window->perform(window, NATIVE_WINDOW_GET_COMPOSITOR_TIMING,
972 compositeDeadline, compositeInterval, compositeToPresentLatency);
973}
974
975static inline int native_window_get_frame_timestamps(
976 struct ANativeWindow* window, uint64_t frameId,
977 int64_t* outRequestedPresentTime, int64_t* outAcquireTime,
978 int64_t* outLatchTime, int64_t* outFirstRefreshStartTime,
979 int64_t* outLastRefreshStartTime, int64_t* outGpuCompositionDoneTime,
980 int64_t* outDisplayPresentTime, int64_t* outDequeueReadyTime,
981 int64_t* outReleaseTime)
982{
983 return window->perform(window, NATIVE_WINDOW_GET_FRAME_TIMESTAMPS,
984 frameId, outRequestedPresentTime, outAcquireTime, outLatchTime,
985 outFirstRefreshStartTime, outLastRefreshStartTime,
986 outGpuCompositionDoneTime, outDisplayPresentTime,
987 outDequeueReadyTime, outReleaseTime);
988}
989
990static inline int native_window_get_wide_color_support(
991 struct ANativeWindow* window, bool* outSupport) {
Chia-I Wue2786ea2017-08-07 10:36:08 -0700992 return window->perform(window, NATIVE_WINDOW_GET_WIDE_COLOR_SUPPORT,
993 outSupport);
Mathias Agopiana6c0e202017-03-20 15:48:44 -0700994}
995
996static inline int native_window_get_hdr_support(struct ANativeWindow* window,
997 bool* outSupport) {
Chia-I Wue2786ea2017-08-07 10:36:08 -0700998 return window->perform(window, NATIVE_WINDOW_GET_HDR_SUPPORT, outSupport);
999}
1000
1001static inline int native_window_get_consumer_usage(struct ANativeWindow* window,
1002 uint64_t* outUsage) {
1003 return window->perform(window, NATIVE_WINDOW_GET_CONSUMER_USAGE64, outUsage);
Mathias Agopiana6c0e202017-03-20 15:48:44 -07001004}
1005
Yiwei Zhang538cedc2019-06-24 19:35:03 -07001006/*
1007 * native_window_set_auto_prerotation(..., autoPrerotation)
1008 * Enable/disable the auto prerotation at buffer allocation when the buffer size
1009 * is driven by the consumer.
1010 *
1011 * When buffer size is driven by the consumer and the transform hint specifies
1012 * a 90 or 270 degree rotation, if auto prerotation is enabled, the width and
1013 * height used for dequeueBuffer will be additionally swapped.
1014 */
1015static inline int native_window_set_auto_prerotation(struct ANativeWindow* window,
1016 bool autoPrerotation) {
1017 return window->perform(window, NATIVE_WINDOW_SET_AUTO_PREROTATION, autoPrerotation);
1018}
1019
Steven Thomas62a4cf82020-01-31 12:04:03 -08001020static inline int native_window_set_frame_rate(struct ANativeWindow* window, float frameRate,
1021 int8_t compatibility) {
1022 return window->perform(window, NATIVE_WINDOW_SET_FRAME_RATE, (double)frameRate,
1023 (int)compatibility);
Steven Thomas3172e202020-01-06 19:25:30 -08001024}
1025
Ady Abraham74e17562020-08-24 18:18:19 -07001026static inline int native_window_set_frame_timeline_vsync(struct ANativeWindow* window,
1027 int64_t frameTimelineVsyncId) {
1028 return window->perform(window, NATIVE_WINDOW_SET_FRAME_TIMELINE_VSYNC,
1029 frameTimelineVsyncId);
1030}
1031
Alec Mourief0b1532019-12-17 09:39:07 -08001032// ------------------------------------------------------------------------------------------------
1033// Candidates for APEX visibility
1034// These functions are planned to be made stable for APEX modules, but have not
1035// yet been stabilized to a specific api version.
1036// ------------------------------------------------------------------------------------------------
1037
1038/**
1039 * Retrieves the last queued buffer for this window, along with the fence that
1040 * fires when the buffer is ready to be read, and the 4x4 coordinate
1041 * transform matrix that should be applied to the buffer's content. The
1042 * transform matrix is represented in column-major order.
1043 *
1044 * If there was no buffer previously queued, then outBuffer will be NULL and
1045 * the value of outFence will be -1.
1046 *
1047 * Note that if outBuffer is not NULL, then the caller will hold a reference
1048 * onto the buffer. Accordingly, the caller must call AHardwareBuffer_release
1049 * when the buffer is no longer needed so that the system may reclaim the
1050 * buffer.
1051 *
1052 * \return NO_ERROR on success.
1053 * \return NO_MEMORY if there was insufficient memory.
1054 */
1055static inline int ANativeWindow_getLastQueuedBuffer(ANativeWindow* window,
1056 AHardwareBuffer** outBuffer, int* outFence,
1057 float outTransformMatrix[16]) {
1058 return window->perform(window, NATIVE_WINDOW_GET_LAST_QUEUED_BUFFER, outBuffer, outFence,
1059 outTransformMatrix);
1060}
1061
Alec Mourid41a1be2020-02-14 15:18:11 -08001062/**
1063 * Retrieves an identifier for the next frame to be queued by this window.
1064 *
1065 * \return the next frame id.
1066 */
1067static inline int64_t ANativeWindow_getNextFrameId(ANativeWindow* window) {
1068 int64_t value;
1069 window->perform(window, NATIVE_WINDOW_GET_NEXT_FRAME_ID, &value);
1070 return value;
1071}
1072
John Reck401cda62020-05-07 16:04:41 -07001073/**
1074 * Prototype of the function that an ANativeWindow implementation would call
1075 * when ANativeWindow_query is called.
1076 */
1077typedef int (*ANativeWindow_queryFn)(const ANativeWindow* window, int what, int* value);
1078
1079/**
1080 * Prototype of the function that intercepts an invocation of
1081 * ANativeWindow_queryFn, along with a data pointer that's passed by the
1082 * caller who set the interceptor, as well as arguments that would be
1083 * passed to ANativeWindow_queryFn if it were to be called.
1084 */
1085typedef int (*ANativeWindow_queryInterceptor)(const ANativeWindow* window,
1086 ANativeWindow_queryFn perform, void* data,
1087 int what, int* value);
1088
1089/**
1090 * Registers an interceptor for ANativeWindow_query. Instead of calling
1091 * the underlying query function, instead the provided interceptor is
1092 * called, which may optionally call the underlying query function. An
1093 * optional data pointer is also provided to side-channel additional arguments.
1094 *
1095 * Note that usage of this should only be used for specialized use-cases by
1096 * either the system partition or to Mainline modules. This should never be
1097 * exposed to NDK or LL-NDK.
1098 *
1099 * Returns NO_ERROR on success, -errno if registration failed.
1100 */
1101static inline int ANativeWindow_setQueryInterceptor(ANativeWindow* window,
1102 ANativeWindow_queryInterceptor interceptor,
1103 void* data) {
1104 return window->perform(window, NATIVE_WINDOW_SET_QUERY_INTERCEPTOR, interceptor, data);
1105}
1106
Mathias Agopiana6c0e202017-03-20 15:48:44 -07001107__END_DECLS