vo_corevideo: restructure this video output

Restructure this video output to be similar to vo_gl, even if simpler
and less feature complete (for example it's still missing EOSD
support). Ideally, it should act as a decent fallback in the case
where something breaks in the OSX support of vo_gl.

Here's a summary of what changed:

 * Remove the shared buffer code since it wasn't using any function
   from the CoreVideo API. Moreover, its presence in vo_corevideo was
   forcing the non-GUI related code to perform more image copies than
   necessary. Equivalent shared-buffer functionality will be added in
   a separate new VO in the next commit (this means OSX GUIs will need
   to specify a different VO).

 * Clean up the code to conform a bit more to the mplayer2
   conventions. Enforce 80 column wrapping, use a private struct for
   file variables, use the new libvo api.

 * Add OSD rendering using OpenGL instead of writing directly on the
   video image data.

 * Simplify the logic for the rendering function when dealing with
   panscan.

 * Add VOCTRL_REDRAW_FRAME support.

 * Add colormatrix support by using the built-in API provided by
   CoreVideo.

1 files changed, 2 insertions, 0 deletions

diff --git a/libvo/cocoa_common.m b/libvo/cocoa_common.m
index af2f4adaaf..71a8072b7c 100644
--- a/libvo/cocoa_common.m
+++ b/libvo/cocoa_common.m
@@ -127,6 +127,8 @@ int vo_cocoa_init(struct vo *vo)
 void vo_cocoa_uninit(struct vo *vo)
 {
     CGDisplayShowCursor(kCGDirectMainDisplay);
+    [NSApp setPresentationOptions:NSApplicationPresentationDefault];
+
     [s->window release];
     s->window = nil;
     [s->glContext release];