Cut a bunch of code by not trying to precompute the blit commands and instead

just do it per blit.  No noticable performance difference (or behavior
difference, in my tests), and a significant difference in sanity.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/mesa/drivers/dri/sis/sis_dd.c b/src/mesa/drivers/dri/sis/sis_dd.c
index 7dc3018157..6cabe5c383 100644
--- a/src/mesa/drivers/dri/sis/sis_dd.c
+++ b/src/mesa/drivers/dri/sis/sis_dd.c
@@ -227,7 +227,7 @@ sisUpdateBufferSize(sisContextPtr smesa)
    /* XXX Should get the base offset of the frontbuffer from the X Server */
    smesa->front.offset = smesa->driDrawable->x * smesa->bytesPerPixel +
 			 smesa->driDrawable->y * smesa->front.pitch;
-   smesa->front.map = (char *) smesa->driScreen->pFB;
+   smesa->front.map = (char *) smesa->driScreen->pFB + smesa->front.offset;
 
    smesa->width = smesa->driDrawable->w;
    smesa->height = smesa->driDrawable->h;