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Resurrect SVG support on MS-Windows

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* src/image.c (syms_of_image) <Qgio> [HAVE_NTGUI]: New DEFSYM.
(init_svg_functions) [LIBRSVG_CHECK_VERSION >= 2.32.0]: Load
g_file_new_for_path and g_memory_input_stream_new_from_data
from libgio, not from libglib.  (Bug#35548)

* lisp/term/w32-win.el (dynamic-library-alist): Add the libgio
DLL.
This commit is contained in:
Eli Zaretskii 2019-07-11 16:28:41 +03:00
parent 2581513abe
commit 60fc771ac6
2 changed files with 11 additions and 3 deletions
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1
lisp/term/w32-win.el
View file

@ -279,6 +279,7 @@ See the documentation of `create-fontset-from-fontset-spec' for the format.")
'(svg "librsvg-2-2.dll")
'(gdk-pixbuf "libgdk_pixbuf-2.0-0.dll")
'(glib "libglib-2.0-0.dll")
'(gio "libgio-2.0-0.dll")
'(gobject "libgobject-2.0-0.dll")
(if (>= libgnutls-version 30400)
'(gnutls "libgnutls-30.dll")

13
src/image.c
View file

@ -9336,22 +9336,26 @@ DEF_DLL_FN (void, g_clear_error, (GError **));
static bool
init_svg_functions (void)
{
HMODULE library, gdklib = NULL, glib = NULL, gobject = NULL;
HMODULE library, gdklib = NULL, glib = NULL, gobject = NULL, giolib = NULL;
if (!(glib = w32_delayed_load (Qglib))
|| !(gobject = w32_delayed_load (Qgobject))
# if LIBRSVG_CHECK_VERSION (2, 32, 0)
|| !(giolib = w32_delayed_load (Qgio))
# endif
|| !(gdklib = w32_delayed_load (Qgdk_pixbuf))
|| !(library = w32_delayed_load (Qsvg)))
{
if (gdklib) FreeLibrary (gdklib);
if (giolib) FreeLibrary (giolib);
if (gobject) FreeLibrary (gobject);
if (glib) FreeLibrary (glib);
return 0;
}
#if LIBRSVG_CHECK_VERSION (2, 32, 0)
LOAD_DLL_FN (glib, g_file_new_for_path);
LOAD_DLL_FN (glib, g_memory_input_stream_new_from_data);
LOAD_DLL_FN (giolib, g_file_new_for_path);
LOAD_DLL_FN (giolib, g_memory_input_stream_new_from_data);
LOAD_DLL_FN (library, rsvg_handle_new_from_stream_sync);
#else
LOAD_DLL_FN (library, rsvg_handle_new);
@ -10229,6 +10233,9 @@ non-numeric, there is no explicit limit on the size of images. */);
/* Other libraries used directly by svg code. */
DEFSYM (Qgdk_pixbuf, "gdk-pixbuf");
DEFSYM (Qglib, "glib");
# if LIBRSVG_CHECK_VERSION (2, 32, 0)
DEFSYM (Qgio, "gio");
# endif
DEFSYM (Qgobject, "gobject");
#endif /* HAVE_NTGUI */
#endif /* HAVE_RSVG */