From 44e53b37a02933f238b438e5dc3a2891da5eb51a Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Fri, 12 Sep 2008 11:35:22 -0600 Subject: cell: fix twiddled tile display for XSHM. Fixed blank window problem. --- src/gallium/winsys/xlib/xm_winsys.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) (limited to 'src/gallium/winsys') diff --git a/src/gallium/winsys/xlib/xm_winsys.c b/src/gallium/winsys/xlib/xm_winsys.c index 2acbc94fc8d..3334af175bc 100644 --- a/src/gallium/winsys/xlib/xm_winsys.c +++ b/src/gallium/winsys/xlib/xm_winsys.c @@ -349,19 +349,26 @@ xmesa_display_surface_tiled(XMesaBuffer b, const struct pipe_surface *surf) if (x + w > surf->width) w = surf->width - x; - offset *= 4 * TILE_SIZE * TILE_SIZE; - - twiddle_tile((uint *) ((char *) xm_buf->data + offset), - tmpTile); - ximage->data = (char*) tmpTile; + /* offset in pixels */ + offset *= TILE_SIZE * TILE_SIZE; if (XSHM_ENABLED(xm_buf)) { + ximage->data = (char *) xm_buf->data + 4 * offset; + /* make copy of tile data */ + memcpy(tmpTile, (uint *) ximage->data, sizeof(tmpTile)); + /* twiddle from temp to ximage in shared memory */ + twiddle_tile(tmpTile, (uint *) ximage->data); + /* display image in shared memory */ #if defined(USE_XSHM) && !defined(XFree86Server) XShmPutImage(b->xm_visual->display, b->drawable, b->gc, ximage, 0, 0, x, y, w, h, False); #endif } else { + /* twiddel from ximage buffer to temp tile */ + twiddle_tile((uint *) xm_buf->data + offset, tmpTile); + /* display temp tile data */ + ximage->data = (char *) tmpTile; XPutImage(b->xm_visual->display, b->drawable, b->gc, ximage, 0, 0, x, y, w, h); } -- cgit v1.2.3