radeonsi: get rid of select_interp_param

The condition !ctx->no_prolog is now always true.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index b7678e1..8bd8c80 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -1183,45 +1183,6 @@ static int lookup_interp_param_index(unsigned interpolate, unsigned location)
        }
 }
 
-/* This shouldn't be used by explicit INTERP opcodes. */
-static unsigned select_interp_param(struct si_shader_context *ctx,
-                                   unsigned param)
-{
-       if (!ctx->no_prolog)
-               return param;
-
-       if (ctx->shader->key.ps.prolog.force_persp_sample_interp) {
-               switch (param) {
-               case SI_PARAM_PERSP_CENTROID:
-               case SI_PARAM_PERSP_CENTER:
-                       return SI_PARAM_PERSP_SAMPLE;
-               }
-       }
-       if (ctx->shader->key.ps.prolog.force_linear_sample_interp) {
-               switch (param) {
-               case SI_PARAM_LINEAR_CENTROID:
-               case SI_PARAM_LINEAR_CENTER:
-                       return SI_PARAM_LINEAR_SAMPLE;
-               }
-       }
-       if (ctx->shader->key.ps.prolog.force_persp_center_interp) {
-               switch (param) {
-               case SI_PARAM_PERSP_CENTROID:
-               case SI_PARAM_PERSP_SAMPLE:
-                       return SI_PARAM_PERSP_CENTER;
-               }
-       }
-       if (ctx->shader->key.ps.prolog.force_linear_center_interp) {
-               switch (param) {
-               case SI_PARAM_LINEAR_CENTROID:
-               case SI_PARAM_LINEAR_SAMPLE:
-                       return SI_PARAM_LINEAR_CENTER;
-               }
-       }
-
-       return param;
-}
-
 /**
  * Interpolate a fragment shader input.
  *
@@ -1424,8 +1385,6 @@ static void declare_input_fs(
        if (interp_param_idx == -1)
                return;
        else if (interp_param_idx) {
-               interp_param_idx = select_interp_param(ctx,
-                                                      interp_param_idx);
                interp_param = get_interp_param(ctx, interp_param_idx);
        }