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Aaudio: Implement app shareable flag instead of -size hack

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am: 51cdd13351

Change-Id: Ifbf493566c45e003ddba23996c8722f3f4c74d4f
This commit is contained in:
Kevin Rocard
2018-08-17 17:13:19 -07:00
committed by android-build-merger
parent d033196431 51cdd13351
commit 616d82ddc6
1 changed files with 16 additions and 0 deletions
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16
audio/core/all-versions/default/include/core/all-versions/default/Stream.h
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@@ -163,6 +163,22 @@ Return<void> StreamMmap<T>::createMmapBuffer(int32_t minSizeFrames, size_t frame
if (retval == Result::OK) {
hidlHandle = native_handle_create(1, 0);
hidlHandle->data[0] = halInfo.shared_memory_fd;
// Negative buffer size frame is a legacy hack to indicate that the buffer
// is shareable to applications before the relevant flag was introduced
bool applicationShareable =
halInfo.flags & AUDIO_MMAP_APPLICATION_SHAREABLE || halInfo.buffer_size_frames < 0;
halInfo.buffer_size_frames = abs(halInfo.buffer_size_frames);
#ifdef AUDIO_HAL_VERSION_2_0
if (applicationShareable) {
halInfo.buffer_size_frames *= -1;
}
#else
info.flags =
halInfo.flags | (applicationShareable ? MmapBufferFlag::APPLICATION_SHAREABLE
: MmapBufferFlag::NONE);
#endif
info.sharedMemory =
hidl_memory("audio_buffer", hidlHandle, frameSize * halInfo.buffer_size_frames);
info.bufferSizeFrames = halInfo.buffer_size_frames;