llvmpipe: Autogenerate lp_tile_soa.c from u_format.csv.

This is just a temporary change until we code generate the tile read/write
functions in runtime. The new code avoids an extra memcpy that exists in
u_tile.c functions, from which lp_tile_soa.c was originally based.

This achieves up to 5% improvement, particularly in frames with
little geometry overlap.

1 files changed, 40 insertions, 37 deletions

diff --git a/src/gallium/drivers/llvmpipe/lp_tile_cache.c b/src/gallium/drivers/llvmpipe/lp_tile_cache.c
index 2ac8cb5c82..68d3fa3282 100644
--- a/src/gallium/drivers/llvmpipe/lp_tile_cache.c
+++ b/src/gallium/drivers/llvmpipe/lp_tile_cache.c
@@ -241,42 +241,34 @@ lp_flush_tile_cache(struct llvmpipe_tile_cache *tc)
       for (x = 0; x < pt->width; x += TILE_SIZE) {
          struct llvmpipe_cached_tile *tile = &tc->entries[y/TILE_SIZE][x/TILE_SIZE];
 
-         switch(tile->status) {
-         case LP_TILE_STATUS_UNDEFINED:
-            break;
-
-         case LP_TILE_STATUS_CLEAR: {
-            /**
-             * Actually clear the tiles which were flagged as being in a clear state.
-             */
-
-            struct pipe_screen *screen = pt->texture->screen;
-            unsigned tw = TILE_SIZE;
-            unsigned th = TILE_SIZE;
-            void *dst;
-
-            if (pipe_clip_tile(x, y, &tw, &th, pt))
-               continue;
-
-            dst = screen->transfer_map(screen, pt);
-            assert(dst);
-            if(!dst)
-               continue;
-
-            util_fill_rect(dst, &pt->block, pt->stride,
-                           x, y, tw,  th,
-                           tc->clear_val);
-
-            screen->transfer_unmap(screen, pt);
+         if(tile->status != LP_TILE_STATUS_UNDEFINED) {
+            unsigned w = TILE_SIZE;
+            unsigned h = TILE_SIZE;
+
+            if (!pipe_clip_tile(x, y, &w, &h, pt)) {
+               switch(tile->status) {
+               case LP_TILE_STATUS_CLEAR:
+                  /* Actually clear the tiles which were flagged as being in a
+                   * clear state. */
+                  util_fill_rect(tc->transfer_map, &pt->block, pt->stride,
+                                 x, y, w, h,
+                                 tc->clear_val);
+                  break;
+
+               case LP_TILE_STATUS_DEFINED:
+                  lp_tile_write_4ub(pt->format,
+                                    tile->color,
+                                    tc->transfer_map, pt->stride,
+                                    x, y, w, h);
+                  break;
+
+               default:
+                  assert(0);
+                  break;
+               }
+            }
 
             tile->status = LP_TILE_STATUS_UNDEFINED;
-            break;
-         }
-
-         case LP_TILE_STATUS_DEFINED:
-            lp_put_tile_rgba_soa(pt, x, y, tile->color);
-            tile->status = LP_TILE_STATUS_UNDEFINED;
-            break;
          }
       }
    }
@@ -304,11 +296,22 @@ lp_get_cached_tile(struct llvmpipe_tile_cache *tc,
       tile->status = LP_TILE_STATUS_DEFINED;
       break;
 
-   case LP_TILE_STATUS_UNDEFINED:
-      /* get new tile data from transfer */
-      lp_get_tile_rgba_soa(pt, x & ~(TILE_SIZE - 1), y & ~(TILE_SIZE - 1), tile->color);
+   case LP_TILE_STATUS_UNDEFINED: {
+      unsigned w = TILE_SIZE;
+      unsigned h = TILE_SIZE;
+
+      x &= ~(TILE_SIZE - 1);
+      y &= ~(TILE_SIZE - 1);
+
+      if (!pipe_clip_tile(x, y, &w, &h, tc->transfer))
+         lp_tile_read_4ub(pt->format,
+                          tile->color,
+                          tc->transfer_map, tc->transfer->stride,
+                          x, y, w, h);
+
       tile->status = LP_TILE_STATUS_DEFINED;
       break;
+   }
 
    case LP_TILE_STATUS_DEFINED:
       /* nothing to do */