From bdbb4beb21876010b14785569a920fa65a67d1ad Mon Sep 17 00:00:00 2001
From: Keith Whitwell <keithw@vmware.com>
Date: Fri, 24 Jul 2009 16:49:35 +0100
Subject: llvmpipe:  expand quad pipeline to process >1 quad at a time

This is part one -- we still only pass a single quad down, but
the code can now cope with more.  The quads must all be from the same
tile.
---
 src/gallium/drivers/llvmpipe/lp_quad_output.c | 49 +++++++++++++++------------
 1 file changed, 28 insertions(+), 21 deletions(-)

(limited to 'src/gallium/drivers/llvmpipe/lp_quad_output.c')

diff --git a/src/gallium/drivers/llvmpipe/lp_quad_output.c b/src/gallium/drivers/llvmpipe/lp_quad_output.c
index d344b4e3a7..07cc840848 100644
--- a/src/gallium/drivers/llvmpipe/lp_quad_output.c
+++ b/src/gallium/drivers/llvmpipe/lp_quad_output.c
@@ -38,11 +38,8 @@
  * taking mask into account.
  */
 static void
-output_quad(struct quad_stage *qs, struct quad_header *quad)
+output_quad(struct quad_stage *qs, struct quad_header *quads[], unsigned nr)
 {
-   /* in-tile pos: */
-   const int itx = quad->input.x0 % TILE_SIZE;
-   const int ity = quad->input.y0 % TILE_SIZE;
 
    struct llvmpipe_context *llvmpipe = qs->llvmpipe;
    uint cbuf;
@@ -51,25 +48,35 @@ output_quad(struct quad_stage *qs, struct quad_header *quad)
    for (cbuf = 0; cbuf < llvmpipe->framebuffer.nr_cbufs; cbuf++) {
       struct llvmpipe_cached_tile *tile
          = lp_get_cached_tile(llvmpipe->cbuf_cache[cbuf],
-                              quad->input.x0, quad->input.y0);
-      float (*quadColor)[4] = quad->output.color[cbuf];
-      int i, j;
+                              quads[0]->input.x0, 
+                              quads[0]->input.y0);
+      int i, j, q;
 
       /* get/swizzle dest colors */
-      for (j = 0; j < QUAD_SIZE; j++) {
-         if (quad->inout.mask & (1 << j)) {
-            int x = itx + (j & 1);
-            int y = ity + (j >> 1);
-            for (i = 0; i < 4; i++) { /* loop over color chans */
-               tile->data.color[y][x][i] = quadColor[i][j];
-            }
-            if (0) {
-               debug_printf("lp write pixel %d,%d: %g, %g, %g\n",
-                            quad->input.x0 + x,
-                            quad->input.y0 + y,
-                            quadColor[0][j],
-                            quadColor[1][j],
-                            quadColor[2][j]);
+      for (q = 0; q < nr; q++) {
+         struct quad_header *quad = quads[q];
+         float (*quadColor)[4] = quad->output.color[cbuf];
+
+         /* in-tile pos: */
+         const int itx = quad->input.x0 % TILE_SIZE;
+         const int ity = quad->input.y0 % TILE_SIZE;
+
+         
+         for (j = 0; j < QUAD_SIZE; j++) {
+            if (quad->inout.mask & (1 << j)) {
+               int x = itx + (j & 1);
+               int y = ity + (j >> 1);
+               for (i = 0; i < 4; i++) { /* loop over color chans */
+                  tile->data.color[y][x][i] = quadColor[i][j];
+               }
+               if (0) {
+                  debug_printf("lp write pixel %d,%d: %g, %g, %g\n",
+                               quad->input.x0 + x,
+                               quad->input.y0 + y,
+                               quadColor[0][j],
+                               quadColor[1][j],
+                               quadColor[2][j]);
+               }
             }
          }
       }
-- 
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