BufferQueue improvements and APIs changes
this is the first step of a series of improvements to
BufferQueue. A few things happen in this change:
- setSynchronousMode() goes away as well as the SynchronousModeAllowed flag
- BufferQueue now defaults to (what used to be) synchronous mode
- a new "controlled by app" flag is passed when creating consumers and producers
those flags are used to put the BufferQueue in a mode where it
will never block if both flags are set. This is achieved by:
- returning an error from dequeueBuffer() if it would block
- making sure a buffer is always available by replacing
the previous buffer with the new one in queueBuffer()
(note: this is similar to what asynchrnous mode used to be)
Note: in this change EGL's swap-interval 0 is broken; this will be
fixed in another change.
Change-Id: I691f9507d6e2e158287e3039f2a79a4d4434211d
diff --git a/cmds/flatland/GLHelper.cpp b/cmds/flatland/GLHelper.cpp
index 89eb95f..3928039 100644
--- a/cmds/flatland/GLHelper.cpp
+++ b/cmds/flatland/GLHelper.cpp
@@ -198,7 +198,7 @@
bool GLHelper::createNamedSurfaceTexture(GLuint name, uint32_t w, uint32_t h,
sp<GLConsumer>* glConsumer, EGLSurface* surface) {
- sp<BufferQueue> bq = new BufferQueue(true, mGraphicBufferAlloc);
+ sp<BufferQueue> bq = new BufferQueue(mGraphicBufferAlloc);
sp<GLConsumer> glc = new GLConsumer(bq, name,
GL_TEXTURE_EXTERNAL_OES, false);
glc->setDefaultBufferSize(w, h);