Mesa (master): mesa: fix inital value for new renderbuffer

[Yuanhan Liu]

Module: Mesa
Branch: master
Commit: 1f5bd65efa228736d41956f9e76df350dfe2d5d2
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=1f5bd65efa228736d41956f9e76df350dfe2d5d2

Author: Yuanhan Liu <yuanhan.liu at linux.intel.com>
Date:   Tue Oct 25 15:28:50 2011 +0800

mesa: fix inital value for new renderbuffer

EXT_framebuffer_object bspec says:

    Get Value                          Type    Get Command 		Initial Value
    -------------------------------    ------  -----------      	-----------
    RENDERBUFFER_INTERNAL_FORMAT_EXT   Z+     GetRenderbufferParameterivEXT  RGBA

NOTE: this is a candidate for the 7.11 branch

Signed-off-by: Yuanhan Liu <yuanhan.liu at linux.intel.com>
Reviewed-by: Brian Paul <brianp at vmware.com>

---

 src/mesa/main/renderbuffer.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/src/mesa/main/renderbuffer.c b/src/mesa/main/renderbuffer.c
index 5dd46cc..33bec42 100644
--- a/src/mesa/main/renderbuffer.c
+++ b/src/mesa/main/renderbuffer.c
@@ -2011,7 +2011,7 @@ _mesa_init_renderbuffer(struct gl_renderbuffer *rb, GLuint name)
 
    rb->Width = 0;
    rb->Height = 0;
-   rb->InternalFormat = GL_NONE;
+   rb->InternalFormat = GL_RGBA;
    rb->Format = MESA_FORMAT_NONE;
 
    rb->DataType = GL_NONE;