1 /*
2 * Copyright (C) 2017 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 #define LOG_TAG "AHardwareBuffer"
18
19 #include <vndk/hardware_buffer.h>
20
21 #include <errno.h>
22 #include <sys/socket.h>
23 #include <memory>
24
25 #include <cutils/native_handle.h>
26 #include <log/log.h>
27 #include <utils/StrongPointer.h>
28 #include <ui/GraphicBuffer.h>
29 #include <system/graphics.h>
30
31 #include <private/android/AHardwareBufferHelpers.h>
32 #include <android/hardware/graphics/common/1.1/types.h>
33
34
35 static constexpr int kFdBufferSize = 128 * sizeof(int); // 128 ints
36
37 using namespace android;
38
39 // ----------------------------------------------------------------------------
40 // Public functions
41 // ----------------------------------------------------------------------------
42
AHardwareBuffer_allocate(const AHardwareBuffer_Desc * desc,AHardwareBuffer ** outBuffer)43 int AHardwareBuffer_allocate(const AHardwareBuffer_Desc* desc, AHardwareBuffer** outBuffer) {
44 if (!outBuffer || !desc) return BAD_VALUE;
45 if (!AHardwareBuffer_isValidDescription(desc, /*log=*/true)) return BAD_VALUE;
46
47 int format = AHardwareBuffer_convertToPixelFormat(desc->format);
48 uint64_t usage = AHardwareBuffer_convertToGrallocUsageBits(desc->usage);
49 sp<GraphicBuffer> gbuffer(new GraphicBuffer(
50 desc->width, desc->height, format, desc->layers, usage,
51 std::string("AHardwareBuffer pid [") + std::to_string(getpid()) + "]"));
52
53 status_t err = gbuffer->initCheck();
54 if (err != 0 || gbuffer->handle == 0) {
55 if (err == NO_MEMORY) {
56 GraphicBuffer::dumpAllocationsToSystemLog();
57 }
58 ALOGE("GraphicBuffer(w=%u, h=%u, lc=%u) failed (%s), handle=%p",
59 desc->width, desc->height, desc->layers, strerror(-err), gbuffer->handle);
60 return err;
61 }
62
63 *outBuffer = AHardwareBuffer_from_GraphicBuffer(gbuffer.get());
64
65 // Ensure the buffer doesn't get destroyed when the sp<> goes away.
66 AHardwareBuffer_acquire(*outBuffer);
67 return NO_ERROR;
68 }
69
AHardwareBuffer_acquire(AHardwareBuffer * buffer)70 void AHardwareBuffer_acquire(AHardwareBuffer* buffer) {
71 // incStrong/decStrong token must be the same, doesn't matter what it is
72 AHardwareBuffer_to_GraphicBuffer(buffer)->incStrong((void*)AHardwareBuffer_acquire);
73 }
74
AHardwareBuffer_release(AHardwareBuffer * buffer)75 void AHardwareBuffer_release(AHardwareBuffer* buffer) {
76 // incStrong/decStrong token must be the same, doesn't matter what it is
77 AHardwareBuffer_to_GraphicBuffer(buffer)->decStrong((void*)AHardwareBuffer_acquire);
78 }
79
AHardwareBuffer_describe(const AHardwareBuffer * buffer,AHardwareBuffer_Desc * outDesc)80 void AHardwareBuffer_describe(const AHardwareBuffer* buffer,
81 AHardwareBuffer_Desc* outDesc) {
82 if (!buffer || !outDesc) return;
83
84 const GraphicBuffer* gbuffer = AHardwareBuffer_to_GraphicBuffer(buffer);
85
86 outDesc->width = gbuffer->getWidth();
87 outDesc->height = gbuffer->getHeight();
88 outDesc->layers = gbuffer->getLayerCount();
89 outDesc->format = AHardwareBuffer_convertFromPixelFormat(uint32_t(gbuffer->getPixelFormat()));
90 outDesc->usage = AHardwareBuffer_convertFromGrallocUsageBits(gbuffer->getUsage());
91 outDesc->stride = gbuffer->getStride();
92 outDesc->rfu0 = 0;
93 outDesc->rfu1 = 0;
94 }
95
AHardwareBuffer_lockAndGetInfo(AHardwareBuffer * buffer,uint64_t usage,int32_t fence,const ARect * rect,void ** outVirtualAddress,int32_t * outBytesPerPixel,int32_t * outBytesPerStride)96 int AHardwareBuffer_lockAndGetInfo(AHardwareBuffer* buffer, uint64_t usage,
97 int32_t fence, const ARect* rect, void** outVirtualAddress,
98 int32_t* outBytesPerPixel, int32_t* outBytesPerStride) {
99 if (outBytesPerPixel) *outBytesPerPixel = -1;
100 if (outBytesPerStride) *outBytesPerStride = -1;
101
102 if (!buffer) {
103 return BAD_VALUE;
104 }
105
106 if (usage & ~(AHARDWAREBUFFER_USAGE_CPU_READ_MASK |
107 AHARDWAREBUFFER_USAGE_CPU_WRITE_MASK)) {
108 ALOGE("Invalid usage flags passed to AHardwareBuffer_lock; only "
109 "AHARDWAREBUFFER_USAGE_CPU_* flags are allowed");
110 return BAD_VALUE;
111 }
112
113 usage = AHardwareBuffer_convertToGrallocUsageBits(usage);
114 GraphicBuffer* gbuffer = AHardwareBuffer_to_GraphicBuffer(buffer);
115
116 //Mapper implementations before 3.0 will not return bytes per pixel or
117 //bytes per stride information.
118 if (gbuffer->getBufferMapperVersion() == GraphicBufferMapper::Version::GRALLOC_2) {
119 ALOGE("Mapper versions before 3.0 cannot retrieve bytes per pixel and bytes per stride info");
120 return INVALID_OPERATION;
121 }
122
123 if (gbuffer->getLayerCount() > 1) {
124 ALOGE("Buffer with multiple layers passed to AHardwareBuffer_lock; "
125 "only buffers with one layer are allowed");
126 return INVALID_OPERATION;
127 }
128
129 Rect bounds;
130 if (!rect) {
131 bounds.set(Rect(gbuffer->getWidth(), gbuffer->getHeight()));
132 } else {
133 bounds.set(Rect(rect->left, rect->top, rect->right, rect->bottom));
134 }
135 int32_t bytesPerPixel;
136 int32_t bytesPerStride;
137 int result = gbuffer->lockAsync(usage, usage, bounds, outVirtualAddress, fence, &bytesPerPixel, &bytesPerStride);
138
139 // if hardware returns -1 for bytes per pixel or bytes per stride, we fail
140 // and unlock the buffer
141 if (bytesPerPixel == -1 || bytesPerStride == -1) {
142 gbuffer->unlock();
143 return INVALID_OPERATION;
144 }
145
146 if (outBytesPerPixel) *outBytesPerPixel = bytesPerPixel;
147 if (outBytesPerStride) *outBytesPerStride = bytesPerStride;
148 return result;
149 }
150
AHardwareBuffer_lock(AHardwareBuffer * buffer,uint64_t usage,int32_t fence,const ARect * rect,void ** outVirtualAddress)151 int AHardwareBuffer_lock(AHardwareBuffer* buffer, uint64_t usage,
152 int32_t fence, const ARect* rect, void** outVirtualAddress) {
153 int32_t bytesPerPixel;
154 int32_t bytesPerStride;
155
156 if (!buffer) return BAD_VALUE;
157
158 if (usage & ~(AHARDWAREBUFFER_USAGE_CPU_READ_MASK |
159 AHARDWAREBUFFER_USAGE_CPU_WRITE_MASK)) {
160 ALOGE("Invalid usage flags passed to AHardwareBuffer_lock; only "
161 "AHARDWAREBUFFER_USAGE_CPU_* flags are allowed");
162 return BAD_VALUE;
163 }
164
165 usage = AHardwareBuffer_convertToGrallocUsageBits(usage);
166 GraphicBuffer* gbuffer = AHardwareBuffer_to_GraphicBuffer(buffer);
167
168 if (gbuffer->getLayerCount() > 1) {
169 ALOGE("Buffer with multiple layers passed to AHardwareBuffer_lock; "
170 "only buffers with one layer are allowed");
171 return INVALID_OPERATION;
172 }
173
174 Rect bounds;
175 if (!rect) {
176 bounds.set(Rect(gbuffer->getWidth(), gbuffer->getHeight()));
177 } else {
178 bounds.set(Rect(rect->left, rect->top, rect->right, rect->bottom));
179 }
180 return gbuffer->lockAsync(usage, usage, bounds, outVirtualAddress, fence, &bytesPerPixel, &bytesPerStride);
181 }
182
AHardwareBuffer_lockPlanes(AHardwareBuffer * buffer,uint64_t usage,int32_t fence,const ARect * rect,AHardwareBuffer_Planes * outPlanes)183 int AHardwareBuffer_lockPlanes(AHardwareBuffer* buffer, uint64_t usage,
184 int32_t fence, const ARect* rect, AHardwareBuffer_Planes* outPlanes) {
185 if (!buffer || !outPlanes) return BAD_VALUE;
186
187 if (usage & ~(AHARDWAREBUFFER_USAGE_CPU_READ_MASK |
188 AHARDWAREBUFFER_USAGE_CPU_WRITE_MASK)) {
189 ALOGE("Invalid usage flags passed to AHardwareBuffer_lock; only "
190 " AHARDWAREBUFFER_USAGE_CPU_* flags are allowed");
191 return BAD_VALUE;
192 }
193
194 usage = AHardwareBuffer_convertToGrallocUsageBits(usage);
195 GraphicBuffer* gBuffer = AHardwareBuffer_to_GraphicBuffer(buffer);
196 Rect bounds;
197 if (!rect) {
198 bounds.set(Rect(gBuffer->getWidth(), gBuffer->getHeight()));
199 } else {
200 bounds.set(Rect(rect->left, rect->top, rect->right, rect->bottom));
201 }
202 int format = AHardwareBuffer_convertFromPixelFormat(uint32_t(gBuffer->getPixelFormat()));
203 memset(outPlanes->planes, 0, sizeof(outPlanes->planes));
204 if (AHardwareBuffer_formatIsYuv(format)) {
205 android_ycbcr yuvData;
206 int result = gBuffer->lockAsyncYCbCr(usage, bounds, &yuvData, fence);
207 if (result == 0) {
208 outPlanes->planeCount = 3;
209 outPlanes->planes[0].data = yuvData.y;
210 outPlanes->planes[0].pixelStride = 1;
211 outPlanes->planes[0].rowStride = yuvData.ystride;
212 outPlanes->planes[1].data = yuvData.cb;
213 outPlanes->planes[1].pixelStride = yuvData.chroma_step;
214 outPlanes->planes[1].rowStride = yuvData.cstride;
215 outPlanes->planes[2].data = yuvData.cr;
216 outPlanes->planes[2].pixelStride = yuvData.chroma_step;
217 outPlanes->planes[2].rowStride = yuvData.cstride;
218 } else {
219 outPlanes->planeCount = 0;
220 }
221 return result;
222 } else {
223 const uint32_t pixelStride = AHardwareBuffer_bytesPerPixel(format);
224 outPlanes->planeCount = 1;
225 outPlanes->planes[0].pixelStride = pixelStride;
226 outPlanes->planes[0].rowStride = gBuffer->getStride() * pixelStride;
227 return gBuffer->lockAsync(usage, usage, bounds, &outPlanes->planes[0].data, fence);
228 }
229 }
230
AHardwareBuffer_unlock(AHardwareBuffer * buffer,int32_t * fence)231 int AHardwareBuffer_unlock(AHardwareBuffer* buffer, int32_t* fence) {
232 if (!buffer) return BAD_VALUE;
233
234 GraphicBuffer* gBuffer = AHardwareBuffer_to_GraphicBuffer(buffer);
235 if (fence == nullptr)
236 return gBuffer->unlock();
237 else
238 return gBuffer->unlockAsync(fence);
239 }
240
AHardwareBuffer_sendHandleToUnixSocket(const AHardwareBuffer * buffer,int socketFd)241 int AHardwareBuffer_sendHandleToUnixSocket(const AHardwareBuffer* buffer, int socketFd) {
242 if (!buffer) return BAD_VALUE;
243 const GraphicBuffer* gBuffer = AHardwareBuffer_to_GraphicBuffer(buffer);
244
245 size_t flattenedSize = gBuffer->getFlattenedSize();
246 size_t fdCount = gBuffer->getFdCount();
247
248 std::unique_ptr<uint8_t[]> data(new uint8_t[flattenedSize]);
249 std::unique_ptr<int[]> fds(new int[fdCount]);
250
251 // Make copies of needed items since flatten modifies them, and we don't
252 // want to send anything if there's an error during flatten.
253 size_t flattenedSizeCopy = flattenedSize;
254 size_t fdCountCopy = fdCount;
255 void* dataStart = data.get();
256 int* fdsStart = fds.get();
257 status_t err = gBuffer->flatten(dataStart, flattenedSizeCopy, fdsStart,
258 fdCountCopy);
259 if (err != NO_ERROR) {
260 return err;
261 }
262
263 struct iovec iov[1];
264 iov[0].iov_base = data.get();
265 iov[0].iov_len = flattenedSize;
266
267 char buf[CMSG_SPACE(kFdBufferSize)];
268 struct msghdr msg = {
269 .msg_iov = &iov[0],
270 .msg_iovlen = 1,
271 .msg_control = buf,
272 .msg_controllen = sizeof(buf),
273 };
274
275 struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg);
276 cmsg->cmsg_level = SOL_SOCKET;
277 cmsg->cmsg_type = SCM_RIGHTS;
278 cmsg->cmsg_len = CMSG_LEN(sizeof(int) * fdCount);
279 int* fdData = reinterpret_cast<int*>(CMSG_DATA(cmsg));
280 memcpy(fdData, fds.get(), sizeof(int) * fdCount);
281 msg.msg_controllen = cmsg->cmsg_len;
282
283 int result;
284 do {
285 result = sendmsg(socketFd, &msg, 0);
286 } while (result == -1 && errno == EINTR);
287 if (result == -1) {
288 result = errno;
289 ALOGE("Error writing AHardwareBuffer to socket: error %#x (%s)",
290 result, strerror(result));
291 return -result;
292 }
293
294 return NO_ERROR;
295 }
296
AHardwareBuffer_recvHandleFromUnixSocket(int socketFd,AHardwareBuffer ** outBuffer)297 int AHardwareBuffer_recvHandleFromUnixSocket(int socketFd, AHardwareBuffer** outBuffer) {
298 if (!outBuffer) return BAD_VALUE;
299
300 static constexpr int kMessageBufferSize = 4096 * sizeof(int);
301
302 std::unique_ptr<char[]> dataBuf(new char[kMessageBufferSize]);
303 char fdBuf[CMSG_SPACE(kFdBufferSize)];
304 struct iovec iov[1];
305 iov[0].iov_base = dataBuf.get();
306 iov[0].iov_len = kMessageBufferSize;
307
308 struct msghdr msg = {
309 .msg_iov = &iov[0],
310 .msg_iovlen = 1,
311 .msg_control = fdBuf,
312 .msg_controllen = sizeof(fdBuf),
313 };
314
315 int result;
316 do {
317 result = recvmsg(socketFd, &msg, 0);
318 } while (result == -1 && errno == EINTR);
319 if (result == -1) {
320 result = errno;
321 ALOGE("Error reading AHardwareBuffer from socket: error %#x (%s)",
322 result, strerror(result));
323 return -result;
324 }
325
326 if (msg.msg_iovlen != 1) {
327 ALOGE("Error reading AHardwareBuffer from socket: bad data length");
328 return INVALID_OPERATION;
329 }
330
331 if (msg.msg_controllen % sizeof(int) != 0) {
332 ALOGE("Error reading AHardwareBuffer from socket: bad fd length");
333 return INVALID_OPERATION;
334 }
335
336 size_t dataLen = msg.msg_iov[0].iov_len;
337 const void* data = static_cast<const void*>(msg.msg_iov[0].iov_base);
338 if (!data) {
339 ALOGE("Error reading AHardwareBuffer from socket: no buffer data");
340 return INVALID_OPERATION;
341 }
342
343 struct cmsghdr* cmsg = CMSG_FIRSTHDR(&msg);
344 if (!cmsg) {
345 ALOGE("Error reading AHardwareBuffer from socket: no fd header");
346 return INVALID_OPERATION;
347 }
348
349 size_t fdCount = msg.msg_controllen >> 2;
350 const int* fdData = reinterpret_cast<const int*>(CMSG_DATA(cmsg));
351 if (!fdData) {
352 ALOGE("Error reading AHardwareBuffer from socket: no fd data");
353 return INVALID_OPERATION;
354 }
355
356 GraphicBuffer* gBuffer = new GraphicBuffer();
357 status_t err = gBuffer->unflatten(data, dataLen, fdData, fdCount);
358 if (err != NO_ERROR) {
359 return err;
360 }
361 *outBuffer = AHardwareBuffer_from_GraphicBuffer(gBuffer);
362 // Ensure the buffer has a positive ref-count.
363 AHardwareBuffer_acquire(*outBuffer);
364
365 return NO_ERROR;
366 }
367
AHardwareBuffer_isSupported(const AHardwareBuffer_Desc * desc)368 int AHardwareBuffer_isSupported(const AHardwareBuffer_Desc* desc) {
369 if (!desc) return 0;
370 if (!AHardwareBuffer_isValidDescription(desc, /*log=*/false)) return 0;
371
372 bool supported = false;
373 GraphicBuffer* gBuffer = new GraphicBuffer();
374 status_t err = gBuffer->isSupported(desc->width, desc->height, desc->format, desc->layers,
375 desc->usage, &supported);
376
377 if (err == NO_ERROR) {
378 return supported;
379 }
380
381 // function isSupported is not implemented on device or an error occurred during HAL
382 // query. Make a trial allocation.
383 AHardwareBuffer_Desc trialDesc = *desc;
384 trialDesc.width = 4;
385 trialDesc.height = desc->format == AHARDWAREBUFFER_FORMAT_BLOB ? 1 : 4;
386 if (desc->usage & AHARDWAREBUFFER_USAGE_GPU_CUBE_MAP) {
387 trialDesc.layers = desc->layers == 6 ? 6 : 12;
388 } else {
389 trialDesc.layers = desc->layers == 1 ? 1 : 2;
390 }
391 AHardwareBuffer* trialBuffer = nullptr;
392 int result = AHardwareBuffer_allocate(&trialDesc, &trialBuffer);
393 if (result == NO_ERROR) {
394 AHardwareBuffer_release(trialBuffer);
395 return 1;
396 }
397 return 0;
398 }
399
400
401 // ----------------------------------------------------------------------------
402 // VNDK functions
403 // ----------------------------------------------------------------------------
404
AHardwareBuffer_getNativeHandle(const AHardwareBuffer * buffer)405 const native_handle_t* AHardwareBuffer_getNativeHandle(
406 const AHardwareBuffer* buffer) {
407 if (!buffer) return nullptr;
408 const GraphicBuffer* gbuffer = AHardwareBuffer_to_GraphicBuffer(buffer);
409 return gbuffer->handle;
410 }
411
AHardwareBuffer_createFromHandle(const AHardwareBuffer_Desc * desc,const native_handle_t * handle,int32_t method,AHardwareBuffer ** outBuffer)412 int AHardwareBuffer_createFromHandle(const AHardwareBuffer_Desc* desc,
413 const native_handle_t* handle, int32_t method,
414 AHardwareBuffer** outBuffer) {
415 static_assert(static_cast<int32_t>(AHARDWAREBUFFER_CREATE_FROM_HANDLE_METHOD_REGISTER) ==
416 static_cast<int32_t>(GraphicBuffer::TAKE_UNREGISTERED_HANDLE));
417 static_assert(static_cast<int32_t>(AHARDWAREBUFFER_CREATE_FROM_HANDLE_METHOD_CLONE) ==
418 static_cast<int32_t>(GraphicBuffer::CLONE_HANDLE));
419
420 if (!desc || !handle || !outBuffer) return BAD_VALUE;
421 if (!(method == AHARDWAREBUFFER_CREATE_FROM_HANDLE_METHOD_REGISTER ||
422 method == AHARDWAREBUFFER_CREATE_FROM_HANDLE_METHOD_CLONE))
423 return BAD_VALUE;
424 if (desc->rfu0 != 0 || desc->rfu1 != 0) return BAD_VALUE;
425 if (desc->format == AHARDWAREBUFFER_FORMAT_BLOB && desc->height != 1) return BAD_VALUE;
426
427 const int format = AHardwareBuffer_convertToPixelFormat(desc->format);
428 const uint64_t usage = AHardwareBuffer_convertToGrallocUsageBits(desc->usage);
429 const auto wrapMethod = static_cast<GraphicBuffer::HandleWrapMethod>(method);
430 sp<GraphicBuffer> gbuffer(new GraphicBuffer(handle, wrapMethod, desc->width, desc->height,
431 format, desc->layers, usage, desc->stride));
432 status_t err = gbuffer->initCheck();
433 if (err != 0 || gbuffer->handle == 0) return err;
434
435 *outBuffer = AHardwareBuffer_from_GraphicBuffer(gbuffer.get());
436 // Ensure the buffer doesn't get destroyed when the sp<> goes away.
437 AHardwareBuffer_acquire(*outBuffer);
438
439 return NO_ERROR;
440 }
441
442 // ----------------------------------------------------------------------------
443 // Helpers implementation
444 // ----------------------------------------------------------------------------
445
446 namespace android {
447
AHardwareBuffer_isValidDescription(const AHardwareBuffer_Desc * desc,bool log)448 bool AHardwareBuffer_isValidDescription(const AHardwareBuffer_Desc* desc, bool log) {
449 if (desc->width == 0 || desc->height == 0 || desc->layers == 0) {
450 ALOGE_IF(log, "Width, height and layers must all be nonzero");
451 return false;
452 }
453
454 if (!AHardwareBuffer_isValidPixelFormat(desc->format)) {
455 ALOGE_IF(log, "Invalid AHardwareBuffer pixel format %u (%#x))",
456 desc->format, desc->format);
457 return false;
458 }
459
460 if (desc->rfu0 != 0 || desc->rfu1 != 0) {
461 ALOGE_IF(log, "AHardwareBuffer_Desc::rfu fields must be 0");
462 return false;
463 }
464
465 if (desc->format == AHARDWAREBUFFER_FORMAT_BLOB) {
466 if (desc->height != 1 || desc->layers != 1) {
467 ALOGE_IF(log, "Height and layers must be 1 for AHARDWAREBUFFER_FORMAT_BLOB");
468 return false;
469 }
470 const uint64_t blobInvalidGpuMask =
471 AHARDWAREBUFFER_USAGE_GPU_SAMPLED_IMAGE |
472 AHARDWAREBUFFER_USAGE_GPU_FRAMEBUFFER |
473 AHARDWAREBUFFER_USAGE_GPU_MIPMAP_COMPLETE |
474 AHARDWAREBUFFER_USAGE_GPU_CUBE_MAP;
475 if (desc->usage & blobInvalidGpuMask) {
476 ALOGE_IF(log, "Invalid GPU usage flag for AHARDWAREBUFFER_FORMAT_BLOB; "
477 "only AHARDWAREBUFFER_USAGE_GPU_DATA_BUFFER is allowed");
478 return false;
479 }
480 if (desc->usage & AHARDWAREBUFFER_USAGE_VIDEO_ENCODE) {
481 ALOGE_IF(log, "AHARDWAREBUFFER_FORMAT_BLOB cannot be encoded as video");
482 return false;
483 }
484 } else if (AHardwareBuffer_formatIsYuv(desc->format)) {
485 if (desc->layers != 1) {
486 ALOGE_IF(log, "Layers must be 1 for YUV formats.");
487 return false;
488 }
489 const uint64_t yuvInvalidGpuMask =
490 AHARDWAREBUFFER_USAGE_GPU_MIPMAP_COMPLETE |
491 AHARDWAREBUFFER_USAGE_GPU_CUBE_MAP;
492 if (desc->usage & yuvInvalidGpuMask) {
493 ALOGE_IF(log, "Invalid usage flags specified for YUV format; "
494 "mip-mapping and cube-mapping are not allowed.");
495 return false;
496 }
497 } else {
498 if (desc->usage & AHARDWAREBUFFER_USAGE_SENSOR_DIRECT_DATA) {
499 ALOGE_IF(log, "AHARDWAREBUFFER_USAGE_SENSOR_DIRECT_DATA requires AHARDWAREBUFFER_FORMAT_BLOB");
500 return false;
501 }
502 if (desc->usage & AHARDWAREBUFFER_USAGE_GPU_DATA_BUFFER) {
503 ALOGE_IF(log, "AHARDWAREBUFFER_USAGE_GPU_DATA_BUFFER requires AHARDWAREBUFFER_FORMAT_BLOB");
504 return false;
505 }
506 }
507
508 if ((desc->usage & (AHARDWAREBUFFER_USAGE_CPU_READ_MASK | AHARDWAREBUFFER_USAGE_CPU_WRITE_MASK)) &&
509 (desc->usage & AHARDWAREBUFFER_USAGE_PROTECTED_CONTENT)) {
510 ALOGE_IF(log, "AHARDWAREBUFFER_USAGE_PROTECTED_CONTENT requires AHARDWAREBUFFER_USAGE_CPU_READ_NEVER "
511 "and AHARDWAREBUFFER_USAGE_CPU_WRITE_NEVER");
512 return false;
513 }
514
515 if (desc->usage & AHARDWAREBUFFER_USAGE_GPU_CUBE_MAP) {
516 if (desc->width != desc->height) {
517 ALOGE_IF(log, "Cube maps must be square");
518 return false;
519 }
520 if (desc->layers % 6 != 0) {
521 ALOGE_IF(log, "Cube map layers must be a multiple of 6");
522 return false;
523 }
524 }
525 return true;
526 }
527
AHardwareBuffer_isValidPixelFormat(uint32_t format)528 bool AHardwareBuffer_isValidPixelFormat(uint32_t format) {
529 static_assert(HAL_PIXEL_FORMAT_RGBA_8888 == AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM,
530 "HAL and AHardwareBuffer pixel format don't match");
531 static_assert(HAL_PIXEL_FORMAT_RGBX_8888 == AHARDWAREBUFFER_FORMAT_R8G8B8X8_UNORM,
532 "HAL and AHardwareBuffer pixel format don't match");
533 static_assert(HAL_PIXEL_FORMAT_RGB_565 == AHARDWAREBUFFER_FORMAT_R5G6B5_UNORM,
534 "HAL and AHardwareBuffer pixel format don't match");
535 static_assert(HAL_PIXEL_FORMAT_RGB_888 == AHARDWAREBUFFER_FORMAT_R8G8B8_UNORM,
536 "HAL and AHardwareBuffer pixel format don't match");
537 static_assert(HAL_PIXEL_FORMAT_RGBA_FP16 == AHARDWAREBUFFER_FORMAT_R16G16B16A16_FLOAT,
538 "HAL and AHardwareBuffer pixel format don't match");
539 static_assert(HAL_PIXEL_FORMAT_RGBA_1010102 == AHARDWAREBUFFER_FORMAT_R10G10B10A2_UNORM,
540 "HAL and AHardwareBuffer pixel format don't match");
541 static_assert(HAL_PIXEL_FORMAT_BLOB == AHARDWAREBUFFER_FORMAT_BLOB,
542 "HAL and AHardwareBuffer pixel format don't match");
543 static_assert(HAL_PIXEL_FORMAT_DEPTH_16 == AHARDWAREBUFFER_FORMAT_D16_UNORM,
544 "HAL and AHardwareBuffer pixel format don't match");
545 static_assert(HAL_PIXEL_FORMAT_DEPTH_24 == AHARDWAREBUFFER_FORMAT_D24_UNORM,
546 "HAL and AHardwareBuffer pixel format don't match");
547 static_assert(HAL_PIXEL_FORMAT_DEPTH_24_STENCIL_8 == AHARDWAREBUFFER_FORMAT_D24_UNORM_S8_UINT,
548 "HAL and AHardwareBuffer pixel format don't match");
549 static_assert(HAL_PIXEL_FORMAT_DEPTH_32F == AHARDWAREBUFFER_FORMAT_D32_FLOAT,
550 "HAL and AHardwareBuffer pixel format don't match");
551 static_assert(HAL_PIXEL_FORMAT_DEPTH_32F_STENCIL_8 == AHARDWAREBUFFER_FORMAT_D32_FLOAT_S8_UINT,
552 "HAL and AHardwareBuffer pixel format don't match");
553 static_assert(HAL_PIXEL_FORMAT_STENCIL_8 == AHARDWAREBUFFER_FORMAT_S8_UINT,
554 "HAL and AHardwareBuffer pixel format don't match");
555 static_assert(HAL_PIXEL_FORMAT_BGRA_8888 == AHARDWAREBUFFER_FORMAT_B8G8R8A8_UNORM,
556 "HAL and AHardwareBuffer pixel format don't match");
557 static_assert(HAL_PIXEL_FORMAT_YV12 == AHARDWAREBUFFER_FORMAT_YV12,
558 "HAL and AHardwareBuffer pixel format don't match");
559 static_assert(HAL_PIXEL_FORMAT_Y8 == AHARDWAREBUFFER_FORMAT_Y8,
560 "HAL and AHardwareBuffer pixel format don't match");
561 static_assert(HAL_PIXEL_FORMAT_Y16 == AHARDWAREBUFFER_FORMAT_Y16,
562 "HAL and AHardwareBuffer pixel format don't match");
563 static_assert(HAL_PIXEL_FORMAT_RAW16 == AHARDWAREBUFFER_FORMAT_RAW16,
564 "HAL and AHardwareBuffer pixel format don't match");
565 static_assert(HAL_PIXEL_FORMAT_RAW10 == AHARDWAREBUFFER_FORMAT_RAW10,
566 "HAL and AHardwareBuffer pixel format don't match");
567 static_assert(HAL_PIXEL_FORMAT_RAW12 == AHARDWAREBUFFER_FORMAT_RAW12,
568 "HAL and AHardwareBuffer pixel format don't match");
569 static_assert(HAL_PIXEL_FORMAT_RAW_OPAQUE == AHARDWAREBUFFER_FORMAT_RAW_OPAQUE,
570 "HAL and AHardwareBuffer pixel format don't match");
571 static_assert(HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED == AHARDWAREBUFFER_FORMAT_IMPLEMENTATION_DEFINED,
572 "HAL and AHardwareBuffer pixel format don't match");
573 static_assert(HAL_PIXEL_FORMAT_YCBCR_420_888 == AHARDWAREBUFFER_FORMAT_Y8Cb8Cr8_420,
574 "HAL and AHardwareBuffer pixel format don't match");
575 static_assert(HAL_PIXEL_FORMAT_YCBCR_422_SP == AHARDWAREBUFFER_FORMAT_YCbCr_422_SP,
576 "HAL and AHardwareBuffer pixel format don't match");
577 static_assert(HAL_PIXEL_FORMAT_YCRCB_420_SP == AHARDWAREBUFFER_FORMAT_YCrCb_420_SP,
578 "HAL and AHardwareBuffer pixel format don't match");
579 static_assert(HAL_PIXEL_FORMAT_YCBCR_422_I == AHARDWAREBUFFER_FORMAT_YCbCr_422_I,
580 "HAL and AHardwareBuffer pixel format don't match");
581
582 switch (format) {
583 case AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM:
584 case AHARDWAREBUFFER_FORMAT_R8G8B8X8_UNORM:
585 case AHARDWAREBUFFER_FORMAT_R5G6B5_UNORM:
586 case AHARDWAREBUFFER_FORMAT_R8G8B8_UNORM:
587 case AHARDWAREBUFFER_FORMAT_R16G16B16A16_FLOAT:
588 case AHARDWAREBUFFER_FORMAT_R10G10B10A2_UNORM:
589 case AHARDWAREBUFFER_FORMAT_BLOB:
590 case AHARDWAREBUFFER_FORMAT_D16_UNORM:
591 case AHARDWAREBUFFER_FORMAT_D24_UNORM:
592 case AHARDWAREBUFFER_FORMAT_D24_UNORM_S8_UINT:
593 case AHARDWAREBUFFER_FORMAT_D32_FLOAT:
594 case AHARDWAREBUFFER_FORMAT_D32_FLOAT_S8_UINT:
595 case AHARDWAREBUFFER_FORMAT_S8_UINT:
596 case AHARDWAREBUFFER_FORMAT_Y8Cb8Cr8_420:
597 // VNDK formats only -- unfortunately we can't differentiate from where we're called
598 case AHARDWAREBUFFER_FORMAT_B8G8R8A8_UNORM:
599 case AHARDWAREBUFFER_FORMAT_YV12:
600 case AHARDWAREBUFFER_FORMAT_Y8:
601 case AHARDWAREBUFFER_FORMAT_Y16:
602 case AHARDWAREBUFFER_FORMAT_RAW16:
603 case AHARDWAREBUFFER_FORMAT_RAW10:
604 case AHARDWAREBUFFER_FORMAT_RAW12:
605 case AHARDWAREBUFFER_FORMAT_RAW_OPAQUE:
606 case AHARDWAREBUFFER_FORMAT_IMPLEMENTATION_DEFINED:
607 case AHARDWAREBUFFER_FORMAT_YCbCr_422_SP:
608 case AHARDWAREBUFFER_FORMAT_YCrCb_420_SP:
609 case AHARDWAREBUFFER_FORMAT_YCbCr_422_I:
610 return true;
611
612 default:
613 return false;
614 }
615 }
616
AHardwareBuffer_formatIsYuv(uint32_t format)617 bool AHardwareBuffer_formatIsYuv(uint32_t format) {
618 switch (format) {
619 case AHARDWAREBUFFER_FORMAT_Y8Cb8Cr8_420:
620 case AHARDWAREBUFFER_FORMAT_YV12:
621 case AHARDWAREBUFFER_FORMAT_Y8:
622 case AHARDWAREBUFFER_FORMAT_Y16:
623 case AHARDWAREBUFFER_FORMAT_YCbCr_422_SP:
624 case AHARDWAREBUFFER_FORMAT_YCrCb_420_SP:
625 case AHARDWAREBUFFER_FORMAT_YCbCr_422_I:
626 return true;
627 default:
628 return false;
629 }
630 }
631
AHardwareBuffer_bytesPerPixel(uint32_t format)632 uint32_t AHardwareBuffer_bytesPerPixel(uint32_t format) {
633 switch (format) {
634 case AHARDWAREBUFFER_FORMAT_R5G6B5_UNORM:
635 case AHARDWAREBUFFER_FORMAT_D16_UNORM:
636 return 2;
637 case AHARDWAREBUFFER_FORMAT_R8G8B8_UNORM:
638 case AHARDWAREBUFFER_FORMAT_D24_UNORM:
639 return 3;
640 case AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM:
641 case AHARDWAREBUFFER_FORMAT_R8G8B8X8_UNORM:
642 case AHARDWAREBUFFER_FORMAT_D32_FLOAT:
643 case AHARDWAREBUFFER_FORMAT_R10G10B10A2_UNORM:
644 case AHARDWAREBUFFER_FORMAT_D24_UNORM_S8_UINT:
645 return 4;
646 default:
647 return 0;
648 }
649 }
650
AHardwareBuffer_convertFromPixelFormat(uint32_t hal_format)651 uint32_t AHardwareBuffer_convertFromPixelFormat(uint32_t hal_format) {
652 return hal_format;
653 }
654
AHardwareBuffer_convertToPixelFormat(uint32_t ahardwarebuffer_format)655 uint32_t AHardwareBuffer_convertToPixelFormat(uint32_t ahardwarebuffer_format) {
656 return ahardwarebuffer_format;
657 }
658
AHardwareBuffer_convertToGrallocUsageBits(uint64_t usage)659 uint64_t AHardwareBuffer_convertToGrallocUsageBits(uint64_t usage) {
660 using android::hardware::graphics::common::V1_1::BufferUsage;
661 static_assert(AHARDWAREBUFFER_USAGE_CPU_READ_NEVER == (uint64_t)BufferUsage::CPU_READ_NEVER,
662 "gralloc and AHardwareBuffer flags don't match");
663 static_assert(AHARDWAREBUFFER_USAGE_CPU_READ_RARELY == (uint64_t)BufferUsage::CPU_READ_RARELY,
664 "gralloc and AHardwareBuffer flags don't match");
665 static_assert(AHARDWAREBUFFER_USAGE_CPU_READ_OFTEN == (uint64_t)BufferUsage::CPU_READ_OFTEN,
666 "gralloc and AHardwareBuffer flags don't match");
667 static_assert(AHARDWAREBUFFER_USAGE_CPU_WRITE_NEVER == (uint64_t)BufferUsage::CPU_WRITE_NEVER,
668 "gralloc and AHardwareBuffer flags don't match");
669 static_assert(AHARDWAREBUFFER_USAGE_CPU_WRITE_RARELY == (uint64_t)BufferUsage::CPU_WRITE_RARELY,
670 "gralloc and AHardwareBuffer flags don't match");
671 static_assert(AHARDWAREBUFFER_USAGE_CPU_WRITE_OFTEN == (uint64_t)BufferUsage::CPU_WRITE_OFTEN,
672 "gralloc and AHardwareBuffer flags don't match");
673 static_assert(AHARDWAREBUFFER_USAGE_GPU_SAMPLED_IMAGE == (uint64_t)BufferUsage::GPU_TEXTURE,
674 "gralloc and AHardwareBuffer flags don't match");
675 static_assert(AHARDWAREBUFFER_USAGE_GPU_FRAMEBUFFER == (uint64_t)BufferUsage::GPU_RENDER_TARGET,
676 "gralloc and AHardwareBuffer flags don't match");
677 static_assert(AHARDWAREBUFFER_USAGE_PROTECTED_CONTENT == (uint64_t)BufferUsage::PROTECTED,
678 "gralloc and AHardwareBuffer flags don't match");
679 static_assert(AHARDWAREBUFFER_USAGE_VIDEO_ENCODE == (uint64_t)BufferUsage::VIDEO_ENCODER,
680 "gralloc and AHardwareBuffer flags don't match");
681 static_assert(AHARDWAREBUFFER_USAGE_GPU_DATA_BUFFER == (uint64_t)BufferUsage::GPU_DATA_BUFFER,
682 "gralloc and AHardwareBuffer flags don't match");
683 static_assert(AHARDWAREBUFFER_USAGE_SENSOR_DIRECT_DATA == (uint64_t)BufferUsage::SENSOR_DIRECT_DATA,
684 "gralloc and AHardwareBuffer flags don't match");
685 static_assert(AHARDWAREBUFFER_USAGE_GPU_CUBE_MAP == (uint64_t)BufferUsage::GPU_CUBE_MAP,
686 "gralloc and AHardwareBuffer flags don't match");
687 static_assert(AHARDWAREBUFFER_USAGE_GPU_MIPMAP_COMPLETE == (uint64_t)BufferUsage::GPU_MIPMAP_COMPLETE,
688 "gralloc and AHardwareBuffer flags don't match");
689 return usage;
690 }
691
AHardwareBuffer_convertFromGrallocUsageBits(uint64_t usage)692 uint64_t AHardwareBuffer_convertFromGrallocUsageBits(uint64_t usage) {
693 return usage;
694 }
695
AHardwareBuffer_to_GraphicBuffer(const AHardwareBuffer * buffer)696 const GraphicBuffer* AHardwareBuffer_to_GraphicBuffer(const AHardwareBuffer* buffer) {
697 return GraphicBuffer::fromAHardwareBuffer(buffer);
698 }
699
AHardwareBuffer_to_GraphicBuffer(AHardwareBuffer * buffer)700 GraphicBuffer* AHardwareBuffer_to_GraphicBuffer(AHardwareBuffer* buffer) {
701 return GraphicBuffer::fromAHardwareBuffer(buffer);
702 }
703
AHardwareBuffer_to_ANativeWindowBuffer(const AHardwareBuffer * buffer)704 const ANativeWindowBuffer* AHardwareBuffer_to_ANativeWindowBuffer(const AHardwareBuffer* buffer) {
705 return AHardwareBuffer_to_GraphicBuffer(buffer)->getNativeBuffer();
706 }
707
AHardwareBuffer_to_ANativeWindowBuffer(AHardwareBuffer * buffer)708 ANativeWindowBuffer* AHardwareBuffer_to_ANativeWindowBuffer(AHardwareBuffer* buffer) {
709 return AHardwareBuffer_to_GraphicBuffer(buffer)->getNativeBuffer();
710 }
711
AHardwareBuffer_from_GraphicBuffer(GraphicBuffer * buffer)712 AHardwareBuffer* AHardwareBuffer_from_GraphicBuffer(GraphicBuffer* buffer) {
713 return buffer->toAHardwareBuffer();
714 }
715
716 } // namespace android
717