[Glamor] [PATCH] Fix the problem of memory leak in gradient pixmap generating.

[Chris Wilson]

On Mon, 16 Apr 2012 09:26:45 +0800, junyan.he at linux.intel.com wrote:
> From: Junyan He <junyan.he at linux.intel.com>
> 
>  Fix the problem of memory leak in gradient pixmap
>  generating. The problem caused by we do not call
>  glDeleteShader when destroy a shader program. This patch
>  will split the gradient pixmap generating to three
>  category. If nstops < 6, we will use the no array version
>  of the shader, which has the best performance. Else if
>  nstops < 16, we use array version of the shader, which is
>  compiled and linked at screen init stage. Else if nstops >
>  16, we dynamically create a new shader program, and this
>  program will be cached until bigger nstops.

And also workarounds a bug in mesa/i965, fyi.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre