diff options
Diffstat (limited to 'xorg-server/glamor')
| -rw-r--r-- | xorg-server/glamor/glamor_largepixmap.c | 9 | ||||
| -rw-r--r-- | xorg-server/glamor/glamor_render.c | 9 |
2 files changed, 17 insertions, 1 deletions
diff --git a/xorg-server/glamor/glamor_largepixmap.c b/xorg-server/glamor/glamor_largepixmap.c index 391f376e9..da3fb6150 100644 --- a/xorg-server/glamor/glamor_largepixmap.c +++ b/xorg-server/glamor/glamor_largepixmap.c @@ -1055,6 +1055,15 @@ glamor_composite_largepixmap_region(CARD8 op, int source_repeat_type = 0, mask_repeat_type = 0; int ok = TRUE; + if (source_pixmap == dest_pixmap) { + glamor_fallback("source and dest pixmaps are the same\n"); + return FALSE; + } + if (mask_pixmap == dest_pixmap) { + glamor_fallback("mask and dest pixmaps are the same\n"); + return FALSE; + } + if (source->repeat) source_repeat_type = source->repeatType; else diff --git a/xorg-server/glamor/glamor_render.c b/xorg-server/glamor/glamor_render.c index efca36744..05eee913e 100644 --- a/xorg-server/glamor/glamor_render.c +++ b/xorg-server/glamor/glamor_render.c @@ -1481,7 +1481,14 @@ glamor_composite_clipped_region(CARD8 op, } } - /*XXXXX, self copy? */ + if (temp_src_pixmap == dest_pixmap) { + glamor_fallback("source and dest pixmaps are the same\n"); + goto out; + } + if (temp_mask_pixmap == dest_pixmap) { + glamor_fallback("mask and dest pixmaps are the same\n"); + goto out; + } x_dest += dest->pDrawable->x; y_dest += dest->pDrawable->y; |