For the patches 9 and 10:
Reviewed-by: Marek Olšák <mar...@gmail.com>
Marek
On Thu, Dec 13, 2012 at 10:58 PM, Paul Berry <stereotype...@gmail.com> wrote:
> In practice this will disable varying packing on R300, R400, i915g,
> and nv30.
>
> Marek Olšák <mar...@gmail.com>
> ---
> src/mesa/state_tracker/st_extensions.c | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
>
> diff --git a/src/mesa/state_tracker/st_extensions.c
> b/src/mesa/state_tracker/st_extensions.c
> index 726d868..f3f01eb 100644
> --- a/src/mesa/state_tracker/st_extensions.c
> +++ b/src/mesa/state_tracker/st_extensions.c
> @@ -663,4 +663,18 @@ void st_init_extensions(struct st_context *st)
> }
> if (screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OBJECTS))
> ctx->Extensions.ARB_texture_buffer_object = GL_TRUE;
> +
> + /* Unpacking a varying in the fragment shader costs 1 texture indirection.
> + * If the number of available texture indirections is very limited, then
> we
> + * prefer to disable varying packing rather than run the risk of varying
> + * packing preventing a shader from running.
> + */
> + if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
> + PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS) <= 8) {
> + /* We can't disable varying packing if transform feedback is available,
> + * because transform feedback code assumes a packed varying layout.
> + */
> + if (!ctx->Extensions.EXT_transform_feedback)
> + ctx->Const.DisableVaryingPacking = GL_TRUE;
> + }
> }
> --
> 1.8.0.2
>
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