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x11-tfp: don't call winsys x11_damage_notify without winsys

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If we failed to create a native texture from pixmap via EGL or GLX then
we shouldn't call the winsys's texture_pixmap_x11_damage_notify
function. By doing the validation in cogl-texture-pixmap-x11.c the
winsys code can continue to assume that it doesn't need to verify there
is a valid tex_pixmap->winsys pointer.

Thanks to Damien Leone <dleone@nvidia.com> for catching this issue.

https://bugzilla.gnome.org/show_bug.cgi?id=660184
This commit is contained in:
Robert Bragg 2011-10-01 16:11:26 +01:00
parent bdfaf94afb
commit 1f61868fed
1 changed files with 14 additions and 8 deletions
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22
cogl/winsys/cogl-texture-pixmap-x11.c
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@ -205,11 +205,14 @@ process_damage_event (CoglTexturePixmapX11 *tex_pixmap,
damage_event->area.height);
}
/* If we're using the texture from pixmap extension then there's no
point in getting the region and we can just mark that the texture
needs updating */
winsys = _cogl_texture_pixmap_x11_get_winsys (tex_pixmap);
winsys->texture_pixmap_x11_damage_notify (tex_pixmap);
if (tex_pixmap->winsys)
{
/* If we're using the texture from pixmap extension then there's no
point in getting the region and we can just mark that the texture
needs updating */
winsys = _cogl_texture_pixmap_x11_get_winsys (tex_pixmap);
winsys->texture_pixmap_x11_damage_notify (tex_pixmap);
}
}
static CoglFilterReturn
@ -420,7 +423,6 @@ cogl_texture_pixmap_x11_update_area (CoglHandle handle,
int height)
{
CoglTexturePixmapX11 *tex_pixmap = COGL_TEXTURE_PIXMAP_X11 (handle);
const CoglWinsysVtable *winsys;
if (!cogl_is_texture_pixmap_x11 (handle))
return;
@ -429,8 +431,12 @@ cogl_texture_pixmap_x11_update_area (CoglHandle handle,
texture because we can't determine which will be needed until we
actually render something */
winsys = _cogl_texture_pixmap_x11_get_winsys (tex_pixmap);
winsys->texture_pixmap_x11_damage_notify (tex_pixmap);
if (tex_pixmap->winsys)
{
const CoglWinsysVtable *winsys;
winsys = _cogl_texture_pixmap_x11_get_winsys (tex_pixmap);
winsys->texture_pixmap_x11_damage_notify (tex_pixmap);
}
cogl_damage_rectangle_union (&tex_pixmap->damage_rect,
x, y, width, height);