r600g: fix transfer stride.

fixes segfaults

diff --git a/src/gallium/drivers/r600/r600_texture.c b/src/gallium/drivers/r600/r600_texture.c
index d1339f69e73388348ba3afc923bea615565b5203..94886acc38e33c9c25c138e4851bebcee7aef133 100644 (file)
--- a/src/gallium/drivers/r600/r600_texture.c
+++ b/src/gallium/drivers/r600/r600_texture.c
@@ -387,6 +387,9 @@ struct pipe_transfer* r600_texture_get_transfer(struct pipe_context *ctx,
                        FREE(trans);
                        return NULL;
                }
+
+               trans->transfer.stride =
+                 ((struct r600_resource_texture *)trans->linear_texture)->pitch_in_bytes[0];
                if (usage & PIPE_TRANSFER_READ) {
                        /* We cannot map a tiled texture directly because the data is
                         * in a different order, therefore we do detiling using a blit. */