Add the MIN_UNDEQUEUED_BUFFERS query to ANW.
This change adds a new query to ANativeWindow for getting the minimum
number of buffers that must be left un-dequeued during the steady-state
operation of the ANativeWindow.
Change-Id: Ie8c461fc26b02ecde02ddb4f95bf763662cf1551
Related-Bug: 3356050
diff --git a/libs/gui/SurfaceTexture.cpp b/libs/gui/SurfaceTexture.cpp
index 223cf09..3bed959 100644
--- a/libs/gui/SurfaceTexture.cpp
+++ b/libs/gui/SurfaceTexture.cpp
@@ -96,6 +96,11 @@
status_t SurfaceTexture::setBufferCount(int bufferCount) {
LOGV("SurfaceTexture::setBufferCount");
+
+ if (bufferCount < MIN_BUFFER_SLOTS) {
+ return BAD_VALUE;
+ }
+
Mutex::Autolock lock(mMutex);
freeAllBuffers();
mBufferCount = bufferCount;