From 0580079864c41c236a4167a1543b1a2fc5090362 Mon Sep 17 00:00:00 2001
From: Keith Whitwell <keithw@vmware.com>
Date: Mon, 19 Oct 2009 12:24:18 +0100
Subject: llvmpipe: fixed-point rasterization

---
 src/gallium/drivers/llvmpipe/lp_rast.h | 35 ++++++++++++++++++----------------
 1 file changed, 19 insertions(+), 16 deletions(-)

(limited to 'src/gallium/drivers/llvmpipe/lp_rast.h')

diff --git a/src/gallium/drivers/llvmpipe/lp_rast.h b/src/gallium/drivers/llvmpipe/lp_rast.h
index f371b709df..9725007119 100644
--- a/src/gallium/drivers/llvmpipe/lp_rast.h
+++ b/src/gallium/drivers/llvmpipe/lp_rast.h
@@ -39,7 +39,10 @@
 struct lp_rasterizer;
 struct pipe_screen;
 
-#define TILESIZE 64
+#define FIXED_ORDER 4
+#define FIXED_ONE (1<<FIXED_ORDER)
+#define TILE_ORDER 6
+#define TILESIZE (1<<TILE_ORDER)
 
 
 struct lp_rast_state {
@@ -84,29 +87,29 @@ struct lp_rast_triangle {
    int maxy;
 
    /* one-pixel sized trivial accept offsets for each plane */
-   float ei1;                   
-   float ei2;
-   float ei3;
+   int ei1;                   
+   int ei2;
+   int ei3;
 
    /* one-pixel sized trivial reject offsets for each plane */
-   float eo1;                   
-   float eo2;
-   float eo3;
+   int eo1;                   
+   int eo2;
+   int eo3;
 
    /* y deltas for vertex pairs */
-   float dy12;
-   float dy23;
-   float dy31;
+   int dy12;
+   int dy23;
+   int dy31;
 
    /* x deltas for vertex pairs */
-   float dx12;
-   float dx23;
-   float dx31;
+   int dx12;
+   int dx23;
+   int dx31;
 
    /* edge function values at minx,miny ?? */
-   float c1;
-   float c2;
-   float c3;
+   int c1;
+   int c2;
+   int c3;
 
    /* XXX: this is only used inside lp_setup_tri.c, don't really
     * need it here:
-- 
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