On Fri, Feb 24, 2012 at 2:43 PM, Vincent Lejeune <v...@ovi.com> wrote:
> v2: remove underscore between NO and PERSPECTIVE in
> PIPE_PACKING_CONSTRAINT_SMOOTH_NO_PERSPECTIVE_MIXED
> ---
> src/mesa/state_tracker/st_extensions.c | 16 ++++++++++++++++
> 1 files changed, 16 insertions(+), 0 deletions(-)
>
> diff --git a/src/mesa/state_tracker/st_extensions.c
> b/src/mesa/state_tracker/st_extensions.c
> index fb36a68..04ff9d4 100644
> --- a/src/mesa/state_tracker/st_extensions.c
> +++ b/src/mesa/state_tracker/st_extensions.c
> @@ -206,6 +206,22 @@ void st_init_limits(struct st_context *st)
> options->EmitNoIndirectUniform = !screen->get_shader_param(screen, sh,
> PIPE_SHADER_CAP_INDIRECT_CONST_ADDR);
>
> + switch (screen->get_shader_param(screen, sh,
> +
> PIPE_SHADER_CAP_VARYINGS_PACKING_CONSTRAINTS)) {
> + case PIPE_PACKING_CONSTRAINT_NONE:
> + options->VaryingsPackingConstraint = PACKING_CONSTRAINT_NONE;
> + break;
> + case PIPE_PACKING_CONSTRAINT_SMOOTH_NOPERSPECTIVE_MIXED:
> + options->VaryingsPackingConstraint =
> PACKING_CONSTRAINT_SMOOTH_NOPERSPECTIVE_MIXED;
> + break;
> + case PIPE_PACKING_CONSTRAINT_NO_MIXED_INTERPOLATION:
> + options->VaryingsPackingConstraint =
> PACKING_CONSTRAINT_NO_MIXED_INTERPOLATION;
> + break;
> + default:
> + options->VaryingsPackingConstraint =
> PACKING_CONSTRAINT_AVOID_PACKING;
> + break;
> + }
> +
If the values of the Mesa enums matches the gallium enums, just use an
assignment:
options->VaryingPackingConstraint = screen->get_shader_param(screen, sh,
PIPE_SHADER_CAP_VARYINGS_PACKING_CONSTRAINTS);
BUT, be sure to add some (static) assertions that the mesa values
match the gallium values to catch any mismatches in the future. We do
this in a few other places.
-Brian
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