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Aaudio: Implement app shareable flag instead of -size hack

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Test: adb shell data/nativetest64/write_sine/write_sine -pl -m3 -x
Bug: 38118159
Change-Id: I2e2fc5801ee9f45565be6f989c0d83d0fdf54618
Signed-off-by: Kevin Rocard <krocard@google.com>
This commit is contained in:
Kevin Rocard
2018-07-12 19:38:35 -07:00
parent c07a66e169
commit 51cdd13351
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;