gallium: pass the filter mode to util_gen_mipmap().

Remove util_gen_mipmap_filter() when no longer used.

src/gallium/auxiliary/util/u_gen_mipmap.c

    ctx->sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
    ctx->sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
    ctx->sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
-   ctx->sampler.mag_img_filter = PIPE_TEX_FILTER_LINEAR;
    ctx->sampler.normalized_coords = 1;
 
 
  * \param baseLevel  the first mipmap level to use as a src
  * \param lastLevel  the last mipmap level to generate
  * \param filter  the minification filter used to generate mipmap levels with
+ * \param filter  one of PIPE_TEX_FILTER_LINEAR, PIPE_TEX_FILTER_NEAREST
  */
 void
-util_gen_mipmap_filter(struct gen_mipmap_state *ctx,
-                       struct pipe_texture *pt,
-                       uint face, uint baseLevel, uint lastLevel, uint filter)
+util_gen_mipmap(struct gen_mipmap_state *ctx,
+                struct pipe_texture *pt,
+                uint face, uint baseLevel, uint lastLevel, uint filter)
 {
    struct pipe_context *pipe = ctx->pipe;
    struct pipe_screen *screen = pipe->screen;
        */
       ctx->sampler.min_lod = ctx->sampler.max_lod = (float) srcLevel;
       ctx->sampler.lod_bias = (float) srcLevel;
+      ctx->sampler.mag_img_filter = filter;
       ctx->sampler.min_img_filter = filter;
       cso_single_sampler(ctx->cso, 0, &ctx->sampler);
       cso_single_sampler_done(ctx->cso);
 
 
 /**
- * Generate mipmap images with a linear minification filter.
- * See util_gen_mipmap_filter for more info.
- *
- * \param pt  the texture to generate mipmap levels for
- * \param face  which cube face to generate mipmaps for (0 for non-cube maps)
- * \param baseLevel  the first mipmap level to use as a src
- * \param lastLevel  the last mipmap level to generate
+ * XXX remove this
  */
 void
-util_gen_mipmap(struct gen_mipmap_state *ctx,
-                struct pipe_texture *pt,
-                uint face, uint baseLevel, uint lastLevel)
+util_gen_mipmap_filter(struct gen_mipmap_state *ctx,
+                       struct pipe_texture *pt,
+                       uint face, uint baseLevel, uint lastLevel, uint filter)
 {
-   util_gen_mipmap_filter( ctx, pt, face, baseLevel, lastLevel, PIPE_TEX_FILTER_LINEAR );
+   util_gen_mipmap_filter( ctx, pt, face, baseLevel, lastLevel, filter );
 }

src/gallium/auxiliary/util/u_gen_mipmap.h

 extern void
 util_gen_mipmap(struct gen_mipmap_state *ctx,
                 struct pipe_texture *pt,
-                uint face, uint baseLevel, uint lastLevel);
+                uint face, uint baseLevel, uint lastLevel, uint filter);
 
 extern void
 util_gen_mipmap_filter(struct gen_mipmap_state *ctx,

src/mesa/state_tracker/st_gen_mipmap.c

       return FALSE;
    }
 
-   util_gen_mipmap(st->gen_mipmap, pt, face, baseLevel, lastLevel);
+   util_gen_mipmap(st->gen_mipmap, pt, face, baseLevel, lastLevel,
+                   PIPE_TEX_FILTER_LINEAR);
 
    /* shaders don't go through CSO yet */
    if (st->fp)