From: Brian <brian.paul@tungstengraphics.com>
Date: Mon, 4 Feb 2008 20:23:07 +0000 (-0700)
Subject: Cell: choose bilinear vs. nearest filtering according to sampler state
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8f924e4df06a5d45dda338e7a0a87308e48df57e;p=mesa.git

Cell: choose bilinear vs. nearest filtering according to sampler state
---

diff --git a/src/mesa/pipe/cell/spu/spu_main.c b/src/mesa/pipe/cell/spu/spu_main.c
index 412661061ab..48e016fc8b4 100644
--- a/src/mesa/pipe/cell/spu/spu_main.c
+++ b/src/mesa/pipe/cell/spu/spu_main.c
@@ -252,6 +252,10 @@ cmd_state_sampler(const struct pipe_sampler_state *state)
              spu.init.id);
 
    memcpy(&spu.sampler[0], state, sizeof(*state));
+   if (spu.sampler[0].min_img_filter == PIPE_TEX_FILTER_LINEAR)
+      spu.sample_texture = sample_texture_bilinear;
+   else
+      spu.sample_texture = sample_texture_nearest;
 }
 
 
diff --git a/src/mesa/pipe/cell/spu/spu_main.h b/src/mesa/pipe/cell/spu/spu_main.h
index 02b62ee5cd5..fb98b0d8897 100644
--- a/src/mesa/pipe/cell/spu/spu_main.h
+++ b/src/mesa/pipe/cell/spu/spu_main.h
@@ -114,6 +114,8 @@ struct spu_global
    vector float tex_size;
    vector unsigned int tex_size_mask; /**< == int(size - 1) */
 
+   uint (*sample_texture)(vector float texcoord);
+
 } ALIGN16_ATTRIB;
 
 
diff --git a/src/mesa/pipe/cell/spu/spu_texture.c b/src/mesa/pipe/cell/spu/spu_texture.c
index 6e243f7fa3a..ecacf2ec887 100644
--- a/src/mesa/pipe/cell/spu/spu_texture.c
+++ b/src/mesa/pipe/cell/spu/spu_texture.c
@@ -131,7 +131,7 @@ get_tex_tile(vector unsigned int ij)
  * XXX this is extremely primitive for now.
  */
 uint
-sample_texture(vector float texcoord)
+sample_texture_nearest(vector float texcoord)
 {
    vector float tc = spu_mul(texcoord, spu.tex_size);
    vector unsigned int itc = spu_convtu(tc, 0);  /* convert to int */
diff --git a/src/mesa/pipe/cell/spu/spu_texture.h b/src/mesa/pipe/cell/spu/spu_texture.h
index 25cbe9b3c64..0e000bfebfd 100644
--- a/src/mesa/pipe/cell/spu/spu_texture.h
+++ b/src/mesa/pipe/cell/spu/spu_texture.h
@@ -37,7 +37,7 @@ invalidate_tex_cache(void);
 
 
 extern uint
-sample_texture(vector float texcoord);
+sample_texture_nearest(vector float texcoord);
 
 
 extern uint
diff --git a/src/mesa/pipe/cell/spu/spu_tri.c b/src/mesa/pipe/cell/spu/spu_tri.c
index c148c75dd61..7b422f71a8d 100644
--- a/src/mesa/pipe/cell/spu/spu_tri.c
+++ b/src/mesa/pipe/cell/spu/spu_tri.c
@@ -309,13 +309,13 @@ emit_quad( int x, int y, mask_t mask )
          eval_coeff(2, (float) x, (float) y, texcoords);
 
          if (spu_extract(mask, 0))
-            spu.ctile.ui[iy][ix] = sample_texture(texcoords[0].v);
+            spu.ctile.ui[iy][ix] = spu.sample_texture(texcoords[0].v);
          if (spu_extract(mask, 1))
-            spu.ctile.ui[iy][ix+1] = sample_texture(texcoords[1].v);
+            spu.ctile.ui[iy][ix+1] = spu.sample_texture(texcoords[1].v);
          if (spu_extract(mask, 2))
-            spu.ctile.ui[iy+1][ix] = sample_texture(texcoords[2].v);
+            spu.ctile.ui[iy+1][ix] = spu.sample_texture(texcoords[2].v);
          if (spu_extract(mask, 3))
-            spu.ctile.ui[iy+1][ix+1] = sample_texture(texcoords[3].v);
+            spu.ctile.ui[iy+1][ix+1] = spu.sample_texture(texcoords[3].v);
       }
       else {
          /* simple shading */