fix [2835280] Add support for cancelling buffers to ANativeWindow
There is a new ANativeWindow::cancelBuffer() API that can be used to
cancel any dequeued buffer, BEFORE it's been enqueued. The buffer is
returned to the list of availlable buffers. dequeue and cancel are not
mutually thread safe, they must be called from the same thread or
external synchronization must be used.
Change-Id: I86cc7985bace8b6a93ad2c75d2bef5c3c2cb4d61
diff --git a/include/surfaceflinger/Surface.h b/include/surfaceflinger/Surface.h
index 7c5a39b..22684db 100644
--- a/include/surfaceflinger/Surface.h
+++ b/include/surfaceflinger/Surface.h
@@ -199,6 +199,7 @@
*/
static int setSwapInterval(ANativeWindow* window, int interval);
static int dequeueBuffer(ANativeWindow* window, android_native_buffer_t** buffer);
+ static int cancelBuffer(ANativeWindow* window, android_native_buffer_t* buffer);
static int lockBuffer(ANativeWindow* window, android_native_buffer_t* buffer);
static int queueBuffer(ANativeWindow* window, android_native_buffer_t* buffer);
static int query(ANativeWindow* window, int what, int* value);
@@ -207,6 +208,7 @@
int dequeueBuffer(android_native_buffer_t** buffer);
int lockBuffer(android_native_buffer_t* buffer);
int queueBuffer(android_native_buffer_t* buffer);
+ int cancelBuffer(android_native_buffer_t* buffer);
int query(int what, int* value);
int perform(int operation, va_list args);