Jerome - this looks good.
Keith
Jerome Glisse wrote:
> Hi Keith,
>
> I have reported few days ago a bug, at least what i thought to be
> a bug in handling of _Current when you bind a new vertex program
> (all this in shader/program.c ~line 1948). I think that whenever
> _Current == Current then you should also bind new program on
> _Current and not only on Current without doing that i got an app
> which segfault with r300 driver because r300 rely on the _Current
> program (which no longuer exist in my test case).
>
> I attach a patch, maybe there is better to catch this or you may
> want to avoid program.c to take care of _Current.
>
> best,
> Jerome Glisse
>
>
> ------------------------------------------------------------------------
>
> diff --git a/src/mesa/shader/program.c b/src/mesa/shader/program.c
> index ddfad47..6db62f5 100644
> --- a/src/mesa/shader/program.c
> +++ b/src/mesa/shader/program.c
> @@ -1947,6 +1947,8 @@ _mesa_BindProgram(GLenum target, GLuint id)
>
> /* bind newProg */
> if (target == GL_VERTEX_PROGRAM_ARB) { /* == GL_VERTEX_PROGRAM_NV */
> + if (ctx->VertexProgram._Current == ctx->VertexProgram.Current)
> + ctx->VertexProgram._Current = (struct gl_vertex_program *) newProg;
> ctx->VertexProgram.Current = (struct gl_vertex_program *) newProg;
> }
> else if (target == GL_FRAGMENT_PROGRAM_NV ||
> @@ -1969,7 +1971,7 @@ _mesa_BindProgram(GLenum target, GLuint id)
> * \note Not compiled into display lists.
> * \note Called by both glDeleteProgramsNV and glDeleteProgramsARB.
> */
> -void GLAPIENTRY
> +void GLAPIENTRY
> _mesa_DeletePrograms(GLsizei n, const GLuint *ids)
> {
> GLint i;
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