Camera2: Add prepare for output streams
The prepare call asynchronously pre-allocates buffers for a given
output stream, and then fires the onPrepared callback.
Not implemented for Camera2Device or used in Camera2Client.
Change-Id: I1cccdfff846dd6985133c591dbdceed823929ade
diff --git a/services/camera/libcameraservice/device3/Camera3OutputStream.cpp b/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
index 8d9b360..7a0331b 100644
--- a/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
@@ -209,6 +209,13 @@
}
}
mLock.lock();
+
+ // Once a valid buffer has been returned to the queue, can no longer
+ // dequeue all buffers for preallocation.
+ if (buffer.status != CAMERA3_BUFFER_STATUS_ERROR) {
+ mStreamUnpreparable = true;
+ }
+
if (res != OK) {
close(anwReleaseFence);
}
@@ -390,7 +397,7 @@
return OK;
}
-status_t Camera3OutputStream::getEndpointUsage(uint32_t *usage) {
+status_t Camera3OutputStream::getEndpointUsage(uint32_t *usage) const {
status_t res;
int32_t u = 0;