r600g,radeonsi: fix broken buffer download
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
diff --git a/src/gallium/drivers/radeon/r600_buffer_common.c b/src/gallium/drivers/radeon/r600_buffer_common.c
index a7ecfb3..d56a644 100644
--- a/src/gallium/drivers/radeon/r600_buffer_common.c
+++ b/src/gallium/drivers/radeon/r600_buffer_common.c
@@ -285,7 +285,7 @@
/* Copy the VRAM buffer to the staging buffer. */
rctx->dma_copy(ctx, &staging->b.b, 0,
- box->x % R600_MAP_BUFFER_ALIGNMENT,
+ offset + box->x % R600_MAP_BUFFER_ALIGNMENT,
0, 0, resource, level, box);
/* Just do the synchronization. The buffer is mapped already. */