From: Richard Sandiford Date: Mon, 17 Jun 2013 16:10:49 +0000 (-0400) Subject: st/xlib Fix XIMage bytes-per-pixel calculation X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=876fefe2ff8901ae4b908cff89ac5dd4324f4fe5;p=mesa.git st/xlib Fix XIMage bytes-per-pixel calculation Fixes a crash seen while running gnome on a 16-bit screen over vnc. NOTE: This is a candidate for stable release branches. Reviewed-by: Brian Paul Signed-off-by: Richard Sandiford --- diff --git a/src/gallium/state_trackers/glx/xlib/xm_api.c b/src/gallium/state_trackers/glx/xlib/xm_api.c index b758c8eaae7..7ed401c514b 100644 --- a/src/gallium/state_trackers/glx/xlib/xm_api.c +++ b/src/gallium/state_trackers/glx/xlib/xm_api.c @@ -1407,9 +1407,8 @@ XMesaBindTexImage(Display *dpy, XMesaBuffer drawable, int buffer, return; } - /* The pipe transfer has a pitch rounded up to the nearest 64 pixels. - We assume 32 bit pixels. */ - ximage_stride = w * 4; + /* The pipe transfer has a pitch rounded up to the nearest 64 pixels. */ + ximage_stride = w * ((img->bits_per_pixel + 7) / 8); for (line = 0; line < h; line++) memcpy(&map[line * tex_xfer->stride],