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-rw-r--r--src/gallium/drivers/r300/r300_render.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/gallium/drivers/r300/r300_render.c b/src/gallium/drivers/r300/r300_render.c
index ff93a16a107..afd871ae302 100644
--- a/src/gallium/drivers/r300/r300_render.c
+++ b/src/gallium/drivers/r300/r300_render.c
@@ -353,6 +353,7 @@ static void r300_emit_draw_elements(struct r300_context *r300,
static void r300_shorten_ubyte_elts(struct r300_context* r300,
struct pipe_buffer** elts,
+ unsigned start,
unsigned count)
{
struct pipe_screen* screen = r300->context.screen;
@@ -370,6 +371,8 @@ static void r300_shorten_ubyte_elts(struct r300_context* r300,
in_map = pipe_buffer_map(screen, *elts, PIPE_BUFFER_USAGE_CPU_READ);
out_map = pipe_buffer_map(screen, new_elts, PIPE_BUFFER_USAGE_CPU_WRITE);
+ in_map += start;
+
for (i = 0; i < count; i++) {
*out_map = (unsigned short)*in_map;
in_map++;
@@ -407,8 +410,9 @@ void r300_draw_range_elements(struct pipe_context* pipe,
}
if (indexSize == 1) {
- r300_shorten_ubyte_elts(r300, &indexBuffer, count);
+ r300_shorten_ubyte_elts(r300, &indexBuffer, start, count);
indexSize = 2;
+ start = 0;
}
r300_update_derived_state(r300);