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authorBrian Paul <[email protected]>2004-01-09 15:31:08 +0000
committerBrian Paul <[email protected]>2004-01-09 15:31:08 +0000
commited98b867af836d7b87529716e95bc611a5695d4d (patch)
tree512690ffa57e012f75e1fa22c181a0e6aa07f2f7 /src/mesa/tnl/t_array_api.c
parenta05b1549f7b6da7d9313b9addf2d01b9c61f34d7 (diff)
Change < to <= when testing counts against ctx->Const.MaxArrayLockSize,
per Daniel Borca. Also, added XXX comments to mark where there may be a problem with the calls to _tnl_vb_bind_arrays(). Is the last parameter a count or index?
Diffstat (limited to 'src/mesa/tnl/t_array_api.c')
-rw-r--r--src/mesa/tnl/t_array_api.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/src/mesa/tnl/t_array_api.c b/src/mesa/tnl/t_array_api.c
index 802133dc2d8..4322419effb 100644
--- a/src/mesa/tnl/t_array_api.c
+++ b/src/mesa/tnl/t_array_api.c
@@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
- * Version: 5.1
+ * Version: 6.0
*
- * Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -90,6 +90,9 @@ static void _tnl_draw_range_elements( GLcontext *ctx, GLenum mode,
if (tnl->pipeline.build_state_changes)
_tnl_validate_pipeline( ctx );
+ /* XXX is "end" correct? Looking at the implementation of
+ * _tnl_vb_bind_arrays(), perhaps we should pass end-start.
+ */
_tnl_vb_bind_arrays( ctx, start, end );
tnl->vb.Primitive = &prim;
@@ -157,7 +160,7 @@ _tnl_DrawArrays(GLenum mode, GLint start, GLsizei count)
fallback_drawarrays( ctx, mode, start, start + count );
}
else if (ctx->Array.LockCount &&
- count < (GLint) ctx->Const.MaxArrayLockSize) {
+ count <= (GLint) ctx->Const.MaxArrayLockSize) {
struct tnl_prim prim;
@@ -234,7 +237,7 @@ _tnl_DrawArrays(GLenum mode, GLint start, GLsizei count)
* must use the slow path if they cannot fit in a single
* vertex buffer.
*/
- if (count < (GLint) ctx->Const.MaxArrayLockSize) {
+ if (count <= (GLint) ctx->Const.MaxArrayLockSize) {
bufsz = ctx->Const.MaxArrayLockSize;
minimum = 0;
modulo = 1;
@@ -258,6 +261,7 @@ _tnl_DrawArrays(GLenum mode, GLint start, GLsizei count)
nr = MIN2( bufsz, count - j );
+ /* XXX is the last parameter a count or index into the array??? */
_tnl_vb_bind_arrays( ctx, j - minimum, j + nr );
tnl->vb.Primitive = &prim;
@@ -352,12 +356,13 @@ _tnl_DrawRangeElements(GLenum mode,
"elements outside locked range.");
}
}
- else if (end + 1 - start < ctx->Const.MaxArrayLockSize) {
+ else if (end - start + 1 <= ctx->Const.MaxArrayLockSize) {
/* The arrays aren't locked but we can still fit them inside a
* single vertexbuffer.
*/
_tnl_draw_range_elements( ctx, mode, start, end + 1, count, ui_indices );
- } else {
+ }
+ else {
/* Range is too big to optimize:
*/
fallback_drawelements( ctx, mode, count, ui_indices );
@@ -411,6 +416,7 @@ _tnl_DrawElements(GLenum mode, GLsizei count, GLenum type,
if (ui_indices[i] > max_elt)
max_elt = ui_indices[i];
+ /* XXX should this < really be <= ??? */
if (max_elt < ctx->Const.MaxArrayLockSize && /* can we use it? */
max_elt < (GLuint) count) /* do we want to use it? */
_tnl_draw_range_elements( ctx, mode, 0, max_elt+1, count, ui_indices );