Mesa (gallium-index-bias): draw: Fix cache elt_bias implementation.
Jose Fonseca
jrfonseca at kemper.freedesktop.org
Tue Apr 20 08:37:33 UTC 2010
Module: Mesa
Branch: gallium-index-bias
Commit: 4e8154e8666ec9375936bbe3fa2ca925ff9be5df
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=4e8154e8666ec9375936bbe3fa2ca925ff9be5df
Author: José Fonseca <jfonseca at vmware.com>
Date: Tue Apr 20 10:32:06 2010 +0200
draw: Fix cache elt_bias implementation.
---
src/gallium/auxiliary/draw/draw_pt_vcache.c | 13 ++++++++-----
1 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/src/gallium/auxiliary/draw/draw_pt_vcache.c b/src/gallium/auxiliary/draw/draw_pt_vcache.c
index a513188..28dc514 100644
--- a/src/gallium/auxiliary/draw/draw_pt_vcache.c
+++ b/src/gallium/auxiliary/draw/draw_pt_vcache.c
@@ -347,7 +347,7 @@ vcache_check_run( struct draw_pt_front_end *frontend,
vcache->fetch_max,
draw_count);
- if (max_index >= DRAW_PIPE_MAX_VERTICES ||
+ if (elt_bias + max_index >= DRAW_PIPE_MAX_VERTICES ||
fetch_count >= UNDEFINED_VERTEX_ID ||
fetch_count > draw_count) {
if (0) debug_printf("fail\n");
@@ -363,6 +363,9 @@ vcache_check_run( struct draw_pt_front_end *frontend,
}
+ assert((elt_bias >= 0 && min_index + elt_bias >= min_index) ||
+ (elt_bias < 0 && min_index + elt_bias < min_index));
+
if (elt_bias <= 0 &&
min_index == (unsigned)-elt_bias &&
index_size == 2)
@@ -407,21 +410,21 @@ vcache_check_run( struct draw_pt_front_end *frontend,
case 1:
rebase_ubyte_elts( (const ubyte *)elts,
draw_count,
- elt_bias - (int)min_index,
+ -elt_bias - (int)min_index,
storage );
break;
case 2:
rebase_ushort_elts( (const ushort *)elts,
draw_count,
- elt_bias - (int)min_index,
+ -elt_bias - (int)min_index,
storage );
break;
case 4:
rebase_uint_elts( (const uint *)elts,
draw_count,
- elt_bias - (int)min_index,
+ -elt_bias - (int)min_index,
storage );
break;
@@ -436,7 +439,7 @@ vcache_check_run( struct draw_pt_front_end *frontend,
if (fetch_count < UNDEFINED_VERTEX_ID)
ok = vcache->middle->run_linear_elts( vcache->middle,
- min_index, /* start */
+ min_index + elt_bias, /* start */
fetch_count,
transformed_elts,
draw_count );
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