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, 4 insertions, 0 deletions

diff --git a/libvo/gl_common.c b/libvo/gl_common.c
index 9245811911..30ed50e95e 100644
--- a/libvo/gl_common.c
+++ b/libvo/gl_common.c
@@ -350,6 +350,7 @@ static const extfunc_desc_t extfuncs[] = {
     DEF_FUNC_DESC(TexParameterf),
     DEF_FUNC_DESC(TexParameterfv),
     DEF_FUNC_DESC(TexCoord2f),
+    DEF_FUNC_DESC(TexCoord2fv),
     DEF_FUNC_DESC(Vertex2f),
     DEF_FUNC_DESC(Vertex3f),
     DEF_FUNC_DESC(Normal3f),
@@ -595,6 +596,9 @@ int glFmt2bpp(GLenum format, GLenum type)
         return 4 * component_size;
     case GL_RED:
         return component_size;
+    case GL_RG:
+    case GL_LUMINANCE_ALPHA:
+        return 2 * component_size;
     }
     return 0; // unknown
 }