Hello,
I am trying to play with clutter version 1.1.10 and get segfault while
running interactive tests:
$ ./test-actors
Running ./test-interactive test-actors
NOTE: For debugging purposes, you can run this single test as follows:
$ libtool --mode=execute \
gdb --eval-command="b test_actors_main" \
--args ./test-interactive test-actors
(test-actors:6689): Cogl-glx-CRITICAL **: _cogl_sub_texture_new:
assertion `sub_x + sub_width <= full_width' failed
Segmentation fault
Debugger output:
(test-actors:7006): Cogl-glx-CRITICAL **: _cogl_sub_texture_new:
assertion `sub_x + sub_width <= full_width' failed
Program received signal SIGSEGV, Segmentation fault.
0xb804d39e in _cogl_texture_transform_quad_coords_to_gl (handle=0x0,
coords=0xbfcf11a0) at ./cogl-texture.c:673
673 return tex->vtable->transform_quad_coords_to_gl (tex, coords);
After some investigations with gdb i've found:
1. My driver does not support COGL_FEATURE_OFFSCREEN
2. _cogl_texture_2d_can_create returns FALSE
3. _cogl_texture_2d_new_with_size returns COGL_INVALID_HANDLE
4. there is no check for COGL_INVALID_HANDLE in
_cogl_atlas_texture_reserve_space after call to
_cogl_texture_2d_new_with_size
So after this patch (against version 1.1.10) there are no more
segfaults in interactive tests:
--- clutter/cogl/cogl/cogl-atlas-texture.c.orig 2010-02-16
09:42:20.000000000 +0300
+++ clutter/cogl/cogl/cogl-atlas-texture.c 2010-02-16 10:25:24.000000000
+0300
@@ -861,6 +861,12 @@
_cogl_atlas_get_height (new_atlas),
COGL_TEXTURE_NONE,
COGL_PIXEL_FORMAT_RGBA_8888);
+ if (new_tex == COGL_INVALID_HANDLE)
+ {
+ ret = FALSE;
+ }
+ else
+ {
COGL_NOTE (ATLAS,
"Atlas %s with size %ix%i",
@@ -902,6 +908,7 @@
_cogl_atlas_get_height (ctx->atlas)));
ret = TRUE;
+ }
}
g_free (data.textures);
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