Mesa (master): mesa: add GL_RG case to _mesa_source_buffer_exists()

[Brian Paul]

Module: Mesa
Branch: master
Commit: d4c1bcce44add7642e857237dfe69bf1fc4511d9
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=d4c1bcce44add7642e857237dfe69bf1fc4511d9

Author: Brian Paul <brianp at vmware.com>
Date:   Thu Oct 21 16:36:23 2010 -0600

mesa: add GL_RG case to _mesa_source_buffer_exists()

Fixes failure with glReadPixels(format=GL_RG)

---

 src/mesa/main/framebuffer.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/src/mesa/main/framebuffer.c b/src/mesa/main/framebuffer.c
index af3b5df..7d55a84 100644
--- a/src/mesa/main/framebuffer.c
+++ b/src/mesa/main/framebuffer.c
@@ -868,6 +868,7 @@ _mesa_source_buffer_exists(struct gl_context *ctx, GLenum format)
    case GL_LUMINANCE:
    case GL_LUMINANCE_ALPHA:
    case GL_INTENSITY:
+   case GL_RG:
    case GL_RGB:
    case GL_BGR:
    case GL_RGBA: