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| 1 /* | |
| 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 #ifndef SYSTEM_CORE_INCLUDE_ANDROID_WINDOW_H | |
| 18 #define SYSTEM_CORE_INCLUDE_ANDROID_WINDOW_H | |
| 19 | |
| 20 #include <cutils/native_handle.h> | |
| 21 #include <errno.h> | |
| 22 #include <limits.h> | |
| 23 #include <stdint.h> | |
| 24 #include <string.h> | |
| 25 #include <sys/cdefs.h> | |
| 26 #include <system/graphics.h> | |
| 27 #include <unistd.h> | |
| 28 | |
| 29 __BEGIN_DECLS | |
| 30 | |
| 31 /*****************************************************************************/ | |
| 32 | |
| 33 #define ANDROID_NATIVE_MAKE_CONSTANT(a,b,c,d) \ | |
| 34 (((unsigned)(a)<<24)|((unsigned)(b)<<16)|((unsigned)(c)<<8)|(unsigned)(d)) | |
| 35 | |
| 36 #define ANDROID_NATIVE_WINDOW_MAGIC \ | |
| 37 ANDROID_NATIVE_MAKE_CONSTANT('_','w','n','d') | |
| 38 | |
| 39 #define ANDROID_NATIVE_BUFFER_MAGIC \ | |
| 40 ANDROID_NATIVE_MAKE_CONSTANT('_','b','f','r') | |
| 41 | |
| 42 // --------------------------------------------------------------------------- | |
| 43 | |
| 44 // This #define may be used to conditionally compile device-specific code to | |
| 45 // support either the prior ANativeWindow interface, which did not pass libsync | |
| 46 // fences around, or the new interface that does. This #define is only present | |
| 47 // when the ANativeWindow interface does include libsync support. | |
| 48 #define ANDROID_NATIVE_WINDOW_HAS_SYNC 1 | |
| 49 | |
| 50 // --------------------------------------------------------------------------- | |
| 51 | |
| 52 typedef const native_handle_t* buffer_handle_t; | |
| 53 | |
| 54 // --------------------------------------------------------------------------- | |
| 55 | |
| 56 typedef struct android_native_rect_t | |
| 57 { | |
| 58 int32_t left; | |
| 59 int32_t top; | |
| 60 int32_t right; | |
| 61 int32_t bottom; | |
| 62 } android_native_rect_t; | |
| 63 | |
| 64 // --------------------------------------------------------------------------- | |
| 65 | |
| 66 typedef struct android_native_base_t | |
| 67 { | |
| 68 /* a magic value defined by the actual EGL native type */ | |
| 69 int magic; | |
| 70 | |
| 71 /* the sizeof() of the actual EGL native type */ | |
| 72 int version; | |
| 73 | |
| 74 void* reserved[4]; | |
| 75 | |
| 76 /* reference-counting interface */ | |
| 77 void (*incRef)(struct android_native_base_t* base); | |
| 78 void (*decRef)(struct android_native_base_t* base); | |
| 79 } android_native_base_t; | |
| 80 | |
| 81 typedef struct ANativeWindowBuffer | |
| 82 { | |
| 83 #ifdef __cplusplus | |
| 84 ANativeWindowBuffer() { | |
| 85 common.magic = ANDROID_NATIVE_BUFFER_MAGIC; | |
| 86 common.version = sizeof(ANativeWindowBuffer); | |
| 87 memset(common.reserved, 0, sizeof(common.reserved)); | |
| 88 } | |
| 89 | |
| 90 // Implement the methods that sp<ANativeWindowBuffer> expects so that it | |
| 91 // can be used to automatically refcount ANativeWindowBuffer's. | |
| 92 void incStrong(const void* id) const { | |
| 93 common.incRef(const_cast<android_native_base_t*>(&common)); | |
| 94 } | |
| 95 void decStrong(const void* id) const { | |
| 96 common.decRef(const_cast<android_native_base_t*>(&common)); | |
| 97 } | |
| 98 #endif | |
| 99 | |
| 100 struct android_native_base_t common; | |
| 101 | |
| 102 int width; | |
| 103 int height; | |
| 104 int stride; | |
| 105 int format; | |
| 106 int usage; | |
| 107 | |
| 108 void* reserved[2]; | |
| 109 | |
| 110 buffer_handle_t handle; | |
| 111 | |
| 112 void* reserved_proc[8]; | |
| 113 } ANativeWindowBuffer_t; | |
| 114 | |
| 115 // Old typedef for backwards compatibility. | |
| 116 typedef ANativeWindowBuffer_t android_native_buffer_t; | |
| 117 | |
| 118 // --------------------------------------------------------------------------- | |
| 119 | |
| 120 /* attributes queriable with query() */ | |
| 121 enum { | |
| 122 NATIVE_WINDOW_WIDTH = 0, | |
| 123 NATIVE_WINDOW_HEIGHT = 1, | |
| 124 NATIVE_WINDOW_FORMAT = 2, | |
| 125 | |
| 126 /* The minimum number of buffers that must remain un-dequeued after a buffer | |
| 127 * has been queued. This value applies only if set_buffer_count was used to | |
| 128 * override the number of buffers and if a buffer has since been queued. | |
| 129 * Users of the set_buffer_count ANativeWindow method should query this | |
| 130 * value before calling set_buffer_count. If it is necessary to have N | |
| 131 * buffers simultaneously dequeued as part of the steady-state operation, | |
| 132 * and this query returns M then N+M buffers should be requested via | |
| 133 * native_window_set_buffer_count. | |
| 134 * | |
| 135 * Note that this value does NOT apply until a single buffer has been | |
| 136 * queued. In particular this means that it is possible to: | |
| 137 * | |
| 138 * 1. Query M = min undequeued buffers | |
| 139 * 2. Set the buffer count to N + M | |
| 140 * 3. Dequeue all N + M buffers | |
| 141 * 4. Cancel M buffers | |
| 142 * 5. Queue, dequeue, queue, dequeue, ad infinitum | |
| 143 */ | |
| 144 NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS = 3, | |
| 145 | |
| 146 /* Check whether queueBuffer operations on the ANativeWindow send the buffer | |
| 147 * to the window compositor. The query sets the returned 'value' argument | |
| 148 * to 1 if the ANativeWindow DOES send queued buffers directly to the window | |
| 149 * compositor and 0 if the buffers do not go directly to the window | |
| 150 * compositor. | |
| 151 * | |
| 152 * This can be used to determine whether protected buffer content should be | |
| 153 * sent to the ANativeWindow. Note, however, that a result of 1 does NOT | |
| 154 * indicate that queued buffers will be protected from applications or users | |
| 155 * capturing their contents. If that behavior is desired then some other | |
| 156 * mechanism (e.g. the GRALLOC_USAGE_PROTECTED flag) should be used in | |
| 157 * conjunction with this query. | |
| 158 */ | |
| 159 NATIVE_WINDOW_QUEUES_TO_WINDOW_COMPOSER = 4, | |
| 160 | |
| 161 /* Get the concrete type of a ANativeWindow. See below for the list of | |
| 162 * possible return values. | |
| 163 * | |
| 164 * This query should not be used outside the Android framework and will | |
| 165 * likely be removed in the near future. | |
| 166 */ | |
| 167 NATIVE_WINDOW_CONCRETE_TYPE = 5, | |
| 168 | |
| 169 | |
| 170 /* | |
| 171 * Default width and height of ANativeWindow buffers, these are the | |
| 172 * dimensions of the window buffers irrespective of the | |
| 173 * NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS call and match the native window | |
| 174 * size unless overridden by NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS. | |
| 175 */ | |
| 176 NATIVE_WINDOW_DEFAULT_WIDTH = 6, | |
| 177 NATIVE_WINDOW_DEFAULT_HEIGHT = 7, | |
| 178 | |
| 179 /* | |
| 180 * transformation that will most-likely be applied to buffers. This is only | |
| 181 * a hint, the actual transformation applied might be different. | |
| 182 * | |
| 183 * INTENDED USE: | |
| 184 * | |
| 185 * The transform hint can be used by a producer, for instance the GLES | |
| 186 * driver, to pre-rotate the rendering such that the final transformation | |
| 187 * in the composer is identity. This can be very useful when used in | |
| 188 * conjunction with the h/w composer HAL, in situations where it | |
| 189 * cannot handle arbitrary rotations. | |
| 190 * | |
| 191 * 1. Before dequeuing a buffer, the GL driver (or any other ANW client) | |
| 192 * queries the ANW for NATIVE_WINDOW_TRANSFORM_HINT. | |
| 193 * | |
| 194 * 2. The GL driver overrides the width and height of the ANW to | |
| 195 * account for NATIVE_WINDOW_TRANSFORM_HINT. This is done by querying | |
| 196 * NATIVE_WINDOW_DEFAULT_{WIDTH | HEIGHT}, swapping the dimensions | |
| 197 * according to NATIVE_WINDOW_TRANSFORM_HINT and calling | |
| 198 * native_window_set_buffers_dimensions(). | |
| 199 * | |
| 200 * 3. The GL driver dequeues a buffer of the new pre-rotated size. | |
| 201 * | |
| 202 * 4. The GL driver renders to the buffer such that the image is | |
| 203 * already transformed, that is applying NATIVE_WINDOW_TRANSFORM_HINT | |
| 204 * to the rendering. | |
| 205 * | |
| 206 * 5. The GL driver calls native_window_set_transform to apply | |
| 207 * inverse transformation to the buffer it just rendered. | |
| 208 * In order to do this, the GL driver needs | |
| 209 * to calculate the inverse of NATIVE_WINDOW_TRANSFORM_HINT, this is | |
| 210 * done easily: | |
| 211 * | |
| 212 * int hintTransform, inverseTransform; | |
| 213 * query(..., NATIVE_WINDOW_TRANSFORM_HINT, &hintTransform); | |
| 214 * inverseTransform = hintTransform; | |
| 215 * if (hintTransform & HAL_TRANSFORM_ROT_90) | |
| 216 * inverseTransform ^= HAL_TRANSFORM_ROT_180; | |
| 217 * | |
| 218 * | |
| 219 * 6. The GL driver queues the pre-transformed buffer. | |
| 220 * | |
| 221 * 7. The composer combines the buffer transform with the display | |
| 222 * transform. If the buffer transform happens to cancel out the | |
| 223 * display transform then no rotation is needed. | |
| 224 * | |
| 225 */ | |
| 226 NATIVE_WINDOW_TRANSFORM_HINT = 8, | |
| 227 | |
| 228 /* | |
| 229 * Boolean that indicates whether the consumer is running more than | |
| 230 * one buffer behind the producer. | |
| 231 */ | |
| 232 NATIVE_WINDOW_CONSUMER_RUNNING_BEHIND = 9, | |
| 233 | |
| 234 /* | |
| 235 * The consumer gralloc usage bits currently set by the consumer. | |
| 236 * The values are defined in hardware/libhardware/include/gralloc.h. | |
| 237 */ | |
| 238 NATIVE_WINDOW_CONSUMER_USAGE_BITS = 10 | |
| 239 }; | |
| 240 | |
| 241 /* Valid operations for the (*perform)() hook. | |
| 242 * | |
| 243 * Values marked as 'deprecated' are supported, but have been superceded by | |
| 244 * other functionality. | |
| 245 * | |
| 246 * Values marked as 'private' should be considered private to the framework. | |
| 247 * HAL implementation code with access to an ANativeWindow should not use these, | |
| 248 * as it may not interact properly with the framework's use of the | |
| 249 * ANativeWindow. | |
| 250 */ | |
| 251 enum { | |
| 252 NATIVE_WINDOW_SET_USAGE = 0, | |
| 253 NATIVE_WINDOW_CONNECT = 1, /* deprecated */ | |
| 254 NATIVE_WINDOW_DISCONNECT = 2, /* deprecated */ | |
| 255 NATIVE_WINDOW_SET_CROP = 3, /* private */ | |
| 256 NATIVE_WINDOW_SET_BUFFER_COUNT = 4, | |
| 257 NATIVE_WINDOW_SET_BUFFERS_GEOMETRY = 5, /* deprecated */ | |
| 258 NATIVE_WINDOW_SET_BUFFERS_TRANSFORM = 6, | |
| 259 NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP = 7, | |
| 260 NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS = 8, | |
| 261 NATIVE_WINDOW_SET_BUFFERS_FORMAT = 9, | |
| 262 NATIVE_WINDOW_SET_SCALING_MODE = 10, /* private */ | |
| 263 NATIVE_WINDOW_LOCK = 11, /* private */ | |
| 264 NATIVE_WINDOW_UNLOCK_AND_POST = 12, /* private */ | |
| 265 NATIVE_WINDOW_API_CONNECT = 13, /* private */ | |
| 266 NATIVE_WINDOW_API_DISCONNECT = 14, /* private */ | |
| 267 NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS = 15, /* private */ | |
| 268 NATIVE_WINDOW_SET_POST_TRANSFORM_CROP = 16, /* private */ | |
| 269 }; | |
| 270 | |
| 271 /* parameter for NATIVE_WINDOW_[API_][DIS]CONNECT */ | |
| 272 enum { | |
| 273 /* Buffers will be queued by EGL via eglSwapBuffers after being filled using | |
| 274 * OpenGL ES. | |
| 275 */ | |
| 276 NATIVE_WINDOW_API_EGL = 1, | |
| 277 | |
| 278 /* Buffers will be queued after being filled using the CPU | |
| 279 */ | |
| 280 NATIVE_WINDOW_API_CPU = 2, | |
| 281 | |
| 282 /* Buffers will be queued by Stagefright after being filled by a video | |
| 283 * decoder. The video decoder can either be a software or hardware decoder. | |
| 284 */ | |
| 285 NATIVE_WINDOW_API_MEDIA = 3, | |
| 286 | |
| 287 /* Buffers will be queued by the the camera HAL. | |
| 288 */ | |
| 289 NATIVE_WINDOW_API_CAMERA = 4, | |
| 290 }; | |
| 291 | |
| 292 /* parameter for NATIVE_WINDOW_SET_BUFFERS_TRANSFORM */ | |
| 293 enum { | |
| 294 /* flip source image horizontally */ | |
| 295 NATIVE_WINDOW_TRANSFORM_FLIP_H = HAL_TRANSFORM_FLIP_H , | |
| 296 /* flip source image vertically */ | |
| 297 NATIVE_WINDOW_TRANSFORM_FLIP_V = HAL_TRANSFORM_FLIP_V, | |
| 298 /* rotate source image 90 degrees clock-wise, and is applied after TRANSFORM
_FLIP_{H|V} */ | |
| 299 NATIVE_WINDOW_TRANSFORM_ROT_90 = HAL_TRANSFORM_ROT_90, | |
| 300 /* rotate source image 180 degrees */ | |
| 301 NATIVE_WINDOW_TRANSFORM_ROT_180 = HAL_TRANSFORM_ROT_180, | |
| 302 /* rotate source image 270 degrees clock-wise */ | |
| 303 NATIVE_WINDOW_TRANSFORM_ROT_270 = HAL_TRANSFORM_ROT_270, | |
| 304 /* transforms source by the inverse transform of the screen it is displayed
onto. This | |
| 305 * transform is applied last */ | |
| 306 NATIVE_WINDOW_TRANSFORM_INVERSE_DISPLAY = 0x08 | |
| 307 }; | |
| 308 | |
| 309 /* parameter for NATIVE_WINDOW_SET_SCALING_MODE */ | |
| 310 enum { | |
| 311 /* the window content is not updated (frozen) until a buffer of | |
| 312 * the window size is received (enqueued) | |
| 313 */ | |
| 314 NATIVE_WINDOW_SCALING_MODE_FREEZE = 0, | |
| 315 /* the buffer is scaled in both dimensions to match the window size */ | |
| 316 NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW = 1, | |
| 317 /* the buffer is scaled uniformly such that the smaller dimension | |
| 318 * of the buffer matches the window size (cropping in the process) | |
| 319 */ | |
| 320 NATIVE_WINDOW_SCALING_MODE_SCALE_CROP = 2, | |
| 321 /* the window is clipped to the size of the buffer's crop rectangle; pixels | |
| 322 * outside the crop rectangle are treated as if they are completely | |
| 323 * transparent. | |
| 324 */ | |
| 325 NATIVE_WINDOW_SCALING_MODE_NO_SCALE_CROP = 3, | |
| 326 }; | |
| 327 | |
| 328 /* values returned by the NATIVE_WINDOW_CONCRETE_TYPE query */ | |
| 329 enum { | |
| 330 NATIVE_WINDOW_FRAMEBUFFER = 0, /* FramebufferNativeWindow */ | |
| 331 NATIVE_WINDOW_SURFACE = 1, /* Surface */ | |
| 332 }; | |
| 333 | |
| 334 /* parameter for NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP | |
| 335 * | |
| 336 * Special timestamp value to indicate that timestamps should be auto-generated | |
| 337 * by the native window when queueBuffer is called. This is equal to INT64_MIN, | |
| 338 * defined directly to avoid problems with C99/C++ inclusion of stdint.h. | |
| 339 */ | |
| 340 static const int64_t NATIVE_WINDOW_TIMESTAMP_AUTO = (-9223372036854775807LL-1); | |
| 341 | |
| 342 struct 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 * The valid operations are: | |
| 465 * NATIVE_WINDOW_SET_USAGE | |
| 466 * NATIVE_WINDOW_CONNECT (deprecated) | |
| 467 * NATIVE_WINDOW_DISCONNECT (deprecated) | |
| 468 * NATIVE_WINDOW_SET_CROP (private) | |
| 469 * NATIVE_WINDOW_SET_BUFFER_COUNT | |
| 470 * NATIVE_WINDOW_SET_BUFFERS_GEOMETRY (deprecated) | |
| 471 * NATIVE_WINDOW_SET_BUFFERS_TRANSFORM | |
| 472 * NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP | |
| 473 * NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS | |
| 474 * NATIVE_WINDOW_SET_BUFFERS_FORMAT | |
| 475 * NATIVE_WINDOW_SET_SCALING_MODE (private) | |
| 476 * NATIVE_WINDOW_LOCK (private) | |
| 477 * NATIVE_WINDOW_UNLOCK_AND_POST (private) | |
| 478 * NATIVE_WINDOW_API_CONNECT (private) | |
| 479 * NATIVE_WINDOW_API_DISCONNECT (private) | |
| 480 * NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS (private) | |
| 481 * NATIVE_WINDOW_SET_POST_TRANSFORM_CROP (private) | |
| 482 * | |
| 483 */ | |
| 484 | |
| 485 int (*perform)(struct ANativeWindow* window, | |
| 486 int operation, ... ); | |
| 487 | |
| 488 /* | |
| 489 * Hook used to cancel a buffer that has been dequeued. | |
| 490 * No synchronization is performed between dequeue() and cancel(), so | |
| 491 * either external synchronization is needed, or these functions must be | |
| 492 * called from the same thread. | |
| 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 * XXX: This function is deprecated. It will continue to work for some | |
| 501 * time for binary compatibility, but the new cancelBuffer function that | |
| 502 * takes a fence file descriptor should be used in its place (pass a value | |
| 503 * of -1 for the fence file descriptor if there is no valid one to pass). | |
| 504 */ | |
| 505 int (*cancelBuffer_DEPRECATED)(struct ANativeWindow* window, | |
| 506 struct ANativeWindowBuffer* buffer); | |
| 507 | |
| 508 /* | |
| 509 * Hook called by EGL to acquire a buffer. This call may block if no | |
| 510 * buffers are available. | |
| 511 * | |
| 512 * The window holds a reference to the buffer between dequeueBuffer and | |
| 513 * either queueBuffer or cancelBuffer, so clients only need their own | |
| 514 * reference if they might use the buffer after queueing or canceling it. | |
| 515 * Holding a reference to a buffer after queueing or canceling it is only | |
| 516 * allowed if a specific buffer count has been set. | |
| 517 * | |
| 518 * The libsync fence file descriptor returned in the int pointed to by the | |
| 519 * fenceFd argument will refer to the fence that must signal before the | |
| 520 * dequeued buffer may be written to. A value of -1 indicates that the | |
| 521 * caller may access the buffer immediately without waiting on a fence. If | |
| 522 * a valid file descriptor is returned (i.e. any value except -1) then the | |
| 523 * caller is responsible for closing the file descriptor. | |
| 524 * | |
| 525 * Returns 0 on success or -errno on error. | |
| 526 */ | |
| 527 int (*dequeueBuffer)(struct ANativeWindow* window, | |
| 528 struct ANativeWindowBuffer** buffer, int* fenceFd); | |
| 529 | |
| 530 /* | |
| 531 * Hook called by EGL when modifications to the render buffer are done. | |
| 532 * This unlocks and post the buffer. | |
| 533 * | |
| 534 * The window holds a reference to the buffer between dequeueBuffer and | |
| 535 * either queueBuffer or cancelBuffer, so clients only need their own | |
| 536 * reference if they might use the buffer after queueing or canceling it. | |
| 537 * Holding a reference to a buffer after queueing or canceling it is only | |
| 538 * allowed if a specific buffer count has been set. | |
| 539 * | |
| 540 * The fenceFd argument specifies a libsync fence file descriptor for a | |
| 541 * fence that must signal before the buffer can be accessed. If the buffer | |
| 542 * can be accessed immediately then a value of -1 should be used. The | |
| 543 * caller must not use the file descriptor after it is passed to | |
| 544 * queueBuffer, and the ANativeWindow implementation is responsible for | |
| 545 * closing it. | |
| 546 * | |
| 547 * Returns 0 on success or -errno on error. | |
| 548 */ | |
| 549 int (*queueBuffer)(struct ANativeWindow* window, | |
| 550 struct ANativeWindowBuffer* buffer, int fenceFd); | |
| 551 | |
| 552 /* | |
| 553 * Hook used to cancel a buffer that has been dequeued. | |
| 554 * No synchronization is performed between dequeue() and cancel(), so | |
| 555 * either external synchronization is needed, or these functions must be | |
| 556 * called from the same thread. | |
| 557 * | |
| 558 * The window holds a reference to the buffer between dequeueBuffer and | |
| 559 * either queueBuffer or cancelBuffer, so clients only need their own | |
| 560 * reference if they might use the buffer after queueing or canceling it. | |
| 561 * Holding a reference to a buffer after queueing or canceling it is only | |
| 562 * allowed if a specific buffer count has been set. | |
| 563 * | |
| 564 * The fenceFd argument specifies a libsync fence file decsriptor for a | |
| 565 * fence that must signal before the buffer can be accessed. If the buffer | |
| 566 * can be accessed immediately then a value of -1 should be used. | |
| 567 * | |
| 568 * Note that if the client has not waited on the fence that was returned | |
| 569 * from dequeueBuffer, that same fence should be passed to cancelBuffer to | |
| 570 * ensure that future uses of the buffer are preceded by a wait on that | |
| 571 * fence. The caller must not use the file descriptor after it is passed | |
| 572 * to cancelBuffer, and the ANativeWindow implementation is responsible for | |
| 573 * closing it. | |
| 574 * | |
| 575 * Returns 0 on success or -errno on error. | |
| 576 */ | |
| 577 int (*cancelBuffer)(struct ANativeWindow* window, | |
| 578 struct ANativeWindowBuffer* buffer, int fenceFd); | |
| 579 }; | |
| 580 | |
| 581 /* Backwards compatibility: use ANativeWindow (struct ANativeWindow in C). | |
| 582 * android_native_window_t is deprecated. | |
| 583 */ | |
| 584 typedef struct ANativeWindow ANativeWindow; | |
| 585 typedef struct ANativeWindow android_native_window_t; | |
| 586 | |
| 587 /* | |
| 588 * native_window_set_usage(..., usage) | |
| 589 * Sets the intended usage flags for the next buffers | |
| 590 * acquired with (*lockBuffer)() and on. | |
| 591 * By default (if this function is never called), a usage of | |
| 592 * GRALLOC_USAGE_HW_RENDER | GRALLOC_USAGE_HW_TEXTURE | |
| 593 * is assumed. | |
| 594 * Calling this function will usually cause following buffers to be | |
| 595 * reallocated. | |
| 596 */ | |
| 597 | |
| 598 static inline int native_window_set_usage( | |
| 599 struct ANativeWindow* window, int usage) | |
| 600 { | |
| 601 return window->perform(window, NATIVE_WINDOW_SET_USAGE, usage); | |
| 602 } | |
| 603 | |
| 604 /* deprecated. Always returns 0. Don't call. */ | |
| 605 static inline int native_window_connect( | |
| 606 struct ANativeWindow* window, int api) { | |
| 607 return 0; | |
| 608 } | |
| 609 | |
| 610 /* deprecated. Always returns 0. Don't call. */ | |
| 611 static inline int native_window_disconnect( | |
| 612 struct ANativeWindow* window, int api) { | |
| 613 return 0; | |
| 614 } | |
| 615 | |
| 616 /* | |
| 617 * native_window_set_crop(..., crop) | |
| 618 * Sets which region of the next queued buffers needs to be considered. | |
| 619 * Depending on the scaling mode, a buffer's crop region is scaled and/or | |
| 620 * cropped to match the surface's size. This function sets the crop in | |
| 621 * pre-transformed buffer pixel coordinates. | |
| 622 * | |
| 623 * The specified crop region applies to all buffers queued after it is called. | |
| 624 * | |
| 625 * If 'crop' is NULL, subsequently queued buffers won't be cropped. | |
| 626 * | |
| 627 * An error is returned if for instance the crop region is invalid, out of the | |
| 628 * buffer's bound or if the window is invalid. | |
| 629 */ | |
| 630 static inline int native_window_set_crop( | |
| 631 struct ANativeWindow* window, | |
| 632 android_native_rect_t const * crop) | |
| 633 { | |
| 634 return window->perform(window, NATIVE_WINDOW_SET_CROP, crop); | |
| 635 } | |
| 636 | |
| 637 /* | |
| 638 * native_window_set_post_transform_crop(..., crop) | |
| 639 * Sets which region of the next queued buffers needs to be considered. | |
| 640 * Depending on the scaling mode, a buffer's crop region is scaled and/or | |
| 641 * cropped to match the surface's size. This function sets the crop in | |
| 642 * post-transformed pixel coordinates. | |
| 643 * | |
| 644 * The specified crop region applies to all buffers queued after it is called. | |
| 645 * | |
| 646 * If 'crop' is NULL, subsequently queued buffers won't be cropped. | |
| 647 * | |
| 648 * An error is returned if for instance the crop region is invalid, out of the | |
| 649 * buffer's bound or if the window is invalid. | |
| 650 */ | |
| 651 static inline int native_window_set_post_transform_crop( | |
| 652 struct ANativeWindow* window, | |
| 653 android_native_rect_t const * crop) | |
| 654 { | |
| 655 return window->perform(window, NATIVE_WINDOW_SET_POST_TRANSFORM_CROP, crop); | |
| 656 } | |
| 657 | |
| 658 /* | |
| 659 * native_window_set_active_rect(..., active_rect) | |
| 660 * | |
| 661 * This function is deprecated and will be removed soon. For now it simply | |
| 662 * sets the post-transform crop for compatibility while multi-project commits | |
| 663 * get checked. | |
| 664 */ | |
| 665 static inline int native_window_set_active_rect( | |
| 666 struct ANativeWindow* window, | |
| 667 android_native_rect_t const * active_rect) | |
| 668 { | |
| 669 return native_window_set_post_transform_crop(window, active_rect); | |
| 670 } | |
| 671 | |
| 672 /* | |
| 673 * native_window_set_buffer_count(..., count) | |
| 674 * Sets the number of buffers associated with this native window. | |
| 675 */ | |
| 676 static inline int native_window_set_buffer_count( | |
| 677 struct ANativeWindow* window, | |
| 678 size_t bufferCount) | |
| 679 { | |
| 680 return window->perform(window, NATIVE_WINDOW_SET_BUFFER_COUNT, bufferCount); | |
| 681 } | |
| 682 | |
| 683 /* | |
| 684 * native_window_set_buffers_geometry(..., int w, int h, int format) | |
| 685 * All buffers dequeued after this call will have the dimensions and format | |
| 686 * specified. A successful call to this function has the same effect as calling | |
| 687 * native_window_set_buffers_size and native_window_set_buffers_format. | |
| 688 * | |
| 689 * XXX: This function is deprecated. The native_window_set_buffers_dimensions | |
| 690 * and native_window_set_buffers_format functions should be used instead. | |
| 691 */ | |
| 692 static inline int native_window_set_buffers_geometry( | |
| 693 struct ANativeWindow* window, | |
| 694 int w, int h, int format) | |
| 695 { | |
| 696 return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_GEOMETRY, | |
| 697 w, h, format); | |
| 698 } | |
| 699 | |
| 700 /* | |
| 701 * native_window_set_buffers_dimensions(..., int w, int h) | |
| 702 * All buffers dequeued after this call will have the dimensions specified. | |
| 703 * In particular, all buffers will have a fixed-size, independent from the | |
| 704 * native-window size. They will be scaled according to the scaling mode | |
| 705 * (see native_window_set_scaling_mode) upon window composition. | |
| 706 * | |
| 707 * If w and h are 0, the normal behavior is restored. That is, dequeued buffers | |
| 708 * following this call will be sized to match the window's size. | |
| 709 * | |
| 710 * Calling this function will reset the window crop to a NULL value, which | |
| 711 * disables cropping of the buffers. | |
| 712 */ | |
| 713 static inline int native_window_set_buffers_dimensions( | |
| 714 struct ANativeWindow* window, | |
| 715 int w, int h) | |
| 716 { | |
| 717 return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS, | |
| 718 w, h); | |
| 719 } | |
| 720 | |
| 721 /* | |
| 722 * native_window_set_buffers_user_dimensions(..., int w, int h) | |
| 723 * | |
| 724 * Sets the user buffer size for the window, which overrides the | |
| 725 * window's size. All buffers dequeued after this call will have the | |
| 726 * dimensions specified unless overridden by | |
| 727 * native_window_set_buffers_dimensions. All buffers will have a | |
| 728 * fixed-size, independent from the native-window size. They will be | |
| 729 * scaled according to the scaling mode (see | |
| 730 * native_window_set_scaling_mode) upon window composition. | |
| 731 * | |
| 732 * If w and h are 0, the normal behavior is restored. That is, the | |
| 733 * default buffer size will match the windows's size. | |
| 734 * | |
| 735 * Calling this function will reset the window crop to a NULL value, which | |
| 736 * disables cropping of the buffers. | |
| 737 */ | |
| 738 static inline int native_window_set_buffers_user_dimensions( | |
| 739 struct ANativeWindow* window, | |
| 740 int w, int h) | |
| 741 { | |
| 742 return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS, | |
| 743 w, h); | |
| 744 } | |
| 745 | |
| 746 /* | |
| 747 * native_window_set_buffers_format(..., int format) | |
| 748 * All buffers dequeued after this call will have the format specified. | |
| 749 * | |
| 750 * If the specified format is 0, the default buffer format will be used. | |
| 751 */ | |
| 752 static inline int native_window_set_buffers_format( | |
| 753 struct ANativeWindow* window, | |
| 754 int format) | |
| 755 { | |
| 756 return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_FORMAT, format); | |
| 757 } | |
| 758 | |
| 759 /* | |
| 760 * native_window_set_buffers_transform(..., int transform) | |
| 761 * All buffers queued after this call will be displayed transformed according | |
| 762 * to the transform parameter specified. | |
| 763 */ | |
| 764 static inline int native_window_set_buffers_transform( | |
| 765 struct ANativeWindow* window, | |
| 766 int transform) | |
| 767 { | |
| 768 return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_TRANSFORM, | |
| 769 transform); | |
| 770 } | |
| 771 | |
| 772 /* | |
| 773 * native_window_set_buffers_timestamp(..., int64_t timestamp) | |
| 774 * All buffers queued after this call will be associated with the timestamp | |
| 775 * parameter specified. If the timestamp is set to NATIVE_WINDOW_TIMESTAMP_AUTO | |
| 776 * (the default), timestamps will be generated automatically when queueBuffer is | |
| 777 * called. The timestamp is measured in nanoseconds, and is normally monotonical
ly | |
| 778 * increasing. The timestamp should be unaffected by time-of-day adjustments, | |
| 779 * and for a camera should be strictly monotonic but for a media player may be | |
| 780 * reset when the position is set. | |
| 781 */ | |
| 782 static inline int native_window_set_buffers_timestamp( | |
| 783 struct ANativeWindow* window, | |
| 784 int64_t timestamp) | |
| 785 { | |
| 786 return window->perform(window, NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP, | |
| 787 timestamp); | |
| 788 } | |
| 789 | |
| 790 /* | |
| 791 * native_window_set_scaling_mode(..., int mode) | |
| 792 * All buffers queued after this call will be associated with the scaling mode | |
| 793 * specified. | |
| 794 */ | |
| 795 static inline int native_window_set_scaling_mode( | |
| 796 struct ANativeWindow* window, | |
| 797 int mode) | |
| 798 { | |
| 799 return window->perform(window, NATIVE_WINDOW_SET_SCALING_MODE, | |
| 800 mode); | |
| 801 } | |
| 802 | |
| 803 /* | |
| 804 * native_window_api_connect(..., int api) | |
| 805 * connects an API to this window. only one API can be connected at a time. | |
| 806 * Returns -EINVAL if for some reason the window cannot be connected, which | |
| 807 * can happen if it's connected to some other API. | |
| 808 */ | |
| 809 static inline int native_window_api_connect( | |
| 810 struct ANativeWindow* window, int api) | |
| 811 { | |
| 812 return window->perform(window, NATIVE_WINDOW_API_CONNECT, api); | |
| 813 } | |
| 814 | |
| 815 /* | |
| 816 * native_window_api_disconnect(..., int api) | |
| 817 * disconnect the API from this window. | |
| 818 * An error is returned if for instance the window wasn't connected in the | |
| 819 * first place. | |
| 820 */ | |
| 821 static inline int native_window_api_disconnect( | |
| 822 struct ANativeWindow* window, int api) | |
| 823 { | |
| 824 return window->perform(window, NATIVE_WINDOW_API_DISCONNECT, api); | |
| 825 } | |
| 826 | |
| 827 /* | |
| 828 * native_window_dequeue_buffer_and_wait(...) | |
| 829 * Dequeue a buffer and wait on the fence associated with that buffer. The | |
| 830 * buffer may safely be accessed immediately upon this function returning. An | |
| 831 * error is returned if either of the dequeue or the wait operations fail. | |
| 832 */ | |
| 833 static inline int native_window_dequeue_buffer_and_wait(ANativeWindow *anw, | |
| 834 struct ANativeWindowBuffer** anb) { | |
| 835 return anw->dequeueBuffer_DEPRECATED(anw, anb); | |
| 836 } | |
| 837 | |
| 838 | |
| 839 __END_DECLS | |
| 840 | |
| 841 #endif /* SYSTEM_CORE_INCLUDE_ANDROID_WINDOW_H */ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2643643008:
Delete third_party/hwcplus/ (Closed)
