On Wed, 2009-12-02 at 16:21 -0800, Eric Anholt wrote: 
> Module: Mesa
> Branch: mesa_7_7_branch
> Commit: 4598942b1b88a2a7d5af7febae7e79eedf00e385
> URL:    
> http://cgit.freedesktop.org/mesa/mesa/commit/?id=4598942b1b88a2a7d5af7febae7e79eedf00e385
> 
> Author: Eric Anholt <e...@anholt.net>
> Date:   Wed Dec  2 13:00:15 2009 -0800
> 
> intel: Make RGB renderbuffers use XRGB8888 like we do for RGB system buffers.
> 
> ---
> 
>  src/mesa/drivers/dri/intel/intel_fbo.c |    6 +-----
>  1 files changed, 1 insertions(+), 5 deletions(-)
> 
> diff --git a/src/mesa/drivers/dri/intel/intel_fbo.c 
> b/src/mesa/drivers/dri/intel/intel_fbo.c
> index 5615040..b6e0d82 100644
> --- a/src/mesa/drivers/dri/intel/intel_fbo.c
> +++ b/src/mesa/drivers/dri/intel/intel_fbo.c
> @@ -126,7 +126,7 @@ intel_alloc_renderbuffer_storage(GLcontext * ctx, struct 
> gl_renderbuffer *rb,
>     case GL_RGB16:
>        rb->Format = MESA_FORMAT_ARGB8888;
>        rb->DataType = GL_UNSIGNED_BYTE;
> -      irb->texformat = MESA_FORMAT_ARGB8888; /* XXX: Need xrgb8888 */
> +      irb->texformat = MESA_FORMAT_XRGB8888;
>        cpp = 4;
>        break;
>     case GL_RGBA:
> @@ -314,10 +314,6 @@ intel_create_renderbuffer(gl_format format)
>        irb->Base.DataType = GL_UNSIGNED_BYTE;
>        break;
>     case MESA_FORMAT_XRGB8888:
> -      /* XXX this is a hack since XRGB surfaces don't seem to work
> -       * properly yet.  Reading the alpha channel returns 0 instead of 1.
> -       */
> -      format = MESA_FORMAT_ARGB8888;
>        irb->Base._BaseFormat = GL_RGB;
>        irb->Base.DataType = GL_UNSIGNED_BYTE;
>        break;

FYI, the second hunk causes a black window with glxgears on my GM45.


-- 
Earthling Michel Dänzer           |                http://www.vmware.com
Libre software enthusiast         |          Debian, X and DRI developer

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