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-rw-r--r--src/mesa/drivers/x11/xm_softpipe.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/src/mesa/drivers/x11/xm_softpipe.c b/src/mesa/drivers/x11/xm_softpipe.c
index 09edea6265..432f306e94 100644
--- a/src/mesa/drivers/x11/xm_softpipe.c
+++ b/src/mesa/drivers/x11/xm_softpipe.c
@@ -51,6 +51,7 @@ struct xm_softpipe_winsys
struct xm_buffer
{
int refcount;
+ int size;
void *data;
void *mapped;
};
@@ -129,8 +130,12 @@ xm_buffer_data(struct pipe_winsys *pws, struct pipe_buffer_handle *buf,
unsigned size, const void *data )
{
struct xm_buffer *xm_buf = xm_bo(buf);
- assert(!xm_buf->data);
- xm_buf->data = malloc(size);
+ if (xm_buf->size != size) {
+ if (xm_buf->data)
+ free(xm_buf->data);
+ xm_buf->data = malloc(size);
+ xm_buf->size = size;
+ }
if (data)
memcpy(xm_buf->data, data, size);
}