diff options
Diffstat (limited to 'boilerplate/cairo-boilerplate.c')
| -rw-r--r-- | boilerplate/cairo-boilerplate.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/boilerplate/cairo-boilerplate.c b/boilerplate/cairo-boilerplate.c index 1abfe09ef..ebbad458c 100644 --- a/boilerplate/cairo-boilerplate.c +++ b/boilerplate/cairo-boilerplate.c @@ -45,6 +45,10 @@ #include <assert.h> #include <errno.h> +#if HAVE_DL +#include <dlfcn.h> +#endif + #if HAVE_UNISTD_H && HAVE_FCNTL_H && HAVE_SIGNAL_H && HAVE_SYS_STAT_H && HAVE_SYS_SOCKET_H && HAVE_SYS_UN_H #include <unistd.h> #include <fcntl.h> @@ -278,7 +282,7 @@ static const cairo_boilerplate_target_t builtin_targets[] = { { "image", "image", NULL, NULL, CAIRO_SURFACE_TYPE_IMAGE, CAIRO_CONTENT_COLOR_ALPHA, 0, - _cairo_boilerplate_image_create_surface, + NULL, _cairo_boilerplate_image_create_surface, NULL, NULL, _cairo_boilerplate_get_image_surface, cairo_surface_write_to_png @@ -286,7 +290,7 @@ static const cairo_boilerplate_target_t builtin_targets[] = { { "image", "image", NULL, NULL, CAIRO_SURFACE_TYPE_IMAGE, CAIRO_CONTENT_COLOR, 0, - _cairo_boilerplate_image_create_surface, + NULL, _cairo_boilerplate_image_create_surface, NULL, NULL, _cairo_boilerplate_get_image_surface, cairo_surface_write_to_png @@ -295,6 +299,7 @@ static const cairo_boilerplate_target_t builtin_targets[] = { { "meta", "image", NULL, NULL, CAIRO_SURFACE_TYPE_META, CAIRO_CONTENT_COLOR_ALPHA, 0, + "cairo_meta_surface_create", _cairo_boilerplate_meta_create_surface, NULL, NULL, _cairo_boilerplate_get_image_surface, @@ -305,6 +310,7 @@ static const cairo_boilerplate_target_t builtin_targets[] = { { "meta", "image", NULL, NULL, CAIRO_SURFACE_TYPE_META, CAIRO_CONTENT_COLOR, 0, + "cairo_meta_surface_create", _cairo_boilerplate_meta_create_surface, NULL, NULL, _cairo_boilerplate_get_image_surface, @@ -321,6 +327,19 @@ static struct cairo_boilerplate_target_list { const cairo_boilerplate_target_t *target; } *cairo_boilerplate_targets; +static cairo_bool_t +probe_target (const cairo_boilerplate_target_t *target) +{ + if (target->probe == NULL) + return TRUE; + +#if HAVE_DL + return dlsym (NULL, target->probe) != NULL; +#else + return TRUE; +#endif +} + void _cairo_boilerplate_register_backend (const cairo_boilerplate_target_t *targets, unsigned int count) @@ -329,9 +348,13 @@ _cairo_boilerplate_register_backend (const cairo_boilerplate_target_t *targets, while (count--) { struct cairo_boilerplate_target_list *list; + --targets; + if (! probe_target (targets)) + continue; + list = xmalloc (sizeof (*list)); list->next = cairo_boilerplate_targets; - list->target = --targets; + list->target = targets; cairo_boilerplate_targets = list; } } |