static GdkColormap *
gdk_gl_config_setup_colormap (GdkScreen *screen,
PIXELFORMATDESCRIPTOR *pfd,
gboolean is_rgba)
{
GDK_GL_NOTE_FUNC_PRIVATE ();
if (is_rgba)
{
/*
* For RGBA mode.
*/
/* System default colormap. */
GDK_GL_NOTE (MISC, g_message (" -- Colormap: system default"));
return g_object_ref (G_OBJECT (gdk_screen_get_system_colormap (screen)));
}
else
{
/*
* For color index mode.
*/
/* New private colormap. */
GDK_GL_NOTE (MISC, g_message (" -- Colormap: new allocated writable"));
return gdk_colormap_new (gdk_screen_get_system_visual (screen), TRUE);
}
/* not reached */
return NULL;
}
/**
* gdk_x11_gl_query_glx_extension:
* @glconfig: a #GdkGLConfig.
* @extension: name of GLX extension.
*
* Determines whether a given GLX extension is supported.
*
* Return value: TRUE if the GLX extension is supported, FALSE if not
* supported.
**/
gboolean
gdk_x11_gl_query_glx_extension (GdkGLConfig *glconfig,
const char *extension)
{
static const char *extensions = NULL;
const char *start;
char *where, *terminator;
int major, minor;
g_return_val_if_fail (GDK_IS_X11_GL_CONFIG (glconfig), FALSE);
/* Extension names should not have spaces. */
where = strchr (extension, ' ');
if (where || *extension == '\0')
return FALSE;
if (extensions == NULL)
{
/* Be careful not to call glXQueryExtensionsString if it
looks like the server doesn't support GLX 1.1.
Unfortunately, the original GLX 1.0 didn't have the notion
of GLX extensions. */
glXQueryVersion (GDK_GL_CONFIG_XDISPLAY (glconfig),
&major, &minor);
if ((major == 1 && minor < 1) || (major < 1))
return FALSE;
extensions = glXQueryExtensionsString (GDK_GL_CONFIG_XDISPLAY (glconfig),
GDK_GL_CONFIG_SCREEN_XNUMBER (glconfig));
}
/* It takes a bit of care to be fool-proof about parsing
the GLX extensions string. Don't be fooled by
sub-strings, etc. */
start = extensions;
for (;;)
{
where = strstr (start, extension);
if (where == NULL)
break;
terminator = where + strlen (extension);
if (where == start || *(where - 1) == ' ')
if (*terminator == ' ' || *terminator == '\0')
{
GDK_GL_NOTE (MISC, g_message (" - %s - supported", extension));
return TRUE;
}
start = terminator;
}
GDK_GL_NOTE (MISC, g_message (" - %s - not supported", extension));
return FALSE;
}
static gboolean
gdk_gl_pixmap_impl_x11_make_context_current (GdkGLDrawable *draw,
GdkGLDrawable *read,
GdkGLContext *glcontext)
{
GdkGLConfig *glconfig;
GLXPixmap glxpixmap;
GLXContext glxcontext;
g_return_val_if_fail (GDK_IS_GL_PIXMAP_IMPL_X11 (draw), FALSE);
g_return_val_if_fail (GDK_IS_GL_CONTEXT_IMPL_X11 (glcontext), FALSE);
glconfig = GDK_GL_PIXMAP_IMPL_X11 (draw)->glconfig;
glxpixmap = GDK_GL_PIXMAP_IMPL_X11 (draw)->glxpixmap;
glxcontext = GDK_GL_CONTEXT_GLXCONTEXT (glcontext);
if (glxpixmap == None || glxcontext == NULL)
return FALSE;
#ifdef GDKGLEXT_MULTIHEAD_SUPPORT
GDK_GL_NOTE (MISC,
g_message (" -- Pixmap: screen number = %d",
GDK_SCREEN_XNUMBER (gdk_drawable_get_screen (GDK_DRAWABLE (draw)))));
#endif /* GDKGLEXT_MULTIHEAD_SUPPORT */
GDK_GL_NOTE (MISC,
g_message (" -- Pixmap: visual id = 0x%lx",
GDK_VISUAL_XVISUAL (gdk_drawable_get_visual (GDK_DRAWABLE (draw)))->visualid));
GDK_GL_NOTE_FUNC_IMPL ("glXMakeCurrent");
if (!glXMakeCurrent (GDK_GL_CONFIG_XDISPLAY (glconfig), glxpixmap, glxcontext))
{
g_warning ("glXMakeCurrent() failed");
_gdk_gl_context_set_gl_drawable (glcontext, NULL);
/* currently unused. */
/* _gdk_gl_context_set_gl_drawable_read (glcontext, NULL); */
return FALSE;
}
_gdk_gl_context_set_gl_drawable (glcontext, draw);
/* currently unused. */
/* _gdk_gl_context_set_gl_drawable_read (glcontext, read); */
if (_GDK_GL_CONFIG_AS_SINGLE_MODE (glconfig))
{
/* We do this because we are treating a double-buffered frame
buffer as a single-buffered frame buffer because the system
does not appear to export any suitable single-buffered
visuals (in which the following are necessary). */
glDrawBuffer (GL_FRONT);
glReadBuffer (GL_FRONT);
}
GDK_GL_NOTE (MISC, _gdk_gl_print_gl_info ());
return TRUE;
}
/* private at present... */
gboolean
_gdk_x11_gl_overlay_get_info (GdkVisual *visual,
GdkGLOverlayInfo *overlay_info)
{
__SOVPropArray *sov_props;
VisualID xvisualid;
int i;
GDK_GL_NOTE_FUNC_PRIVATE ();
g_return_val_if_fail (GDK_IS_VISUAL (visual), FALSE);
g_return_val_if_fail (overlay_info != NULL, FALSE);
/* Get SOV properties. */
#ifdef GDKGLEXT_MULTIHEAD_SUPPORT
sov_props = gdk_gl_overlay_get_sov_props (gdk_visual_get_screen (visual));
#else /* GDKGLEXT_MULTIHEAD_SUPPORT */
sov_props = gdk_gl_overlay_get_sov_props (NULL);
#endif /* GDKGLEXT_MULTIHEAD_SUPPORT */
/* Look up SOV property for the visual. */
xvisualid = GDK_VISUAL_XVISUAL (visual)->visualid;
for (i = 0; i < sov_props->num; i++)
{
if ((VisualID) (sov_props->prop[i].overlay_visual) == xvisualid)
{
overlay_info->visual = visual;
overlay_info->transparent_type = sov_props->prop[i].transparent_type;
overlay_info->value = sov_props->prop[i].value;
overlay_info->layer = sov_props->prop[i].layer;
GDK_GL_NOTE (MISC, g_message (" -- overlay visual"));
GDK_GL_NOTE (MISC, g_print ("transparent_type = %d\n",
overlay_info->transparent_type));
GDK_GL_NOTE (MISC, g_print ("value = %u\n",
overlay_info->value));
GDK_GL_NOTE (MISC, g_print ("layer = %d\n",
overlay_info->layer));
return TRUE;
}
}
/* meaningless */
overlay_info->visual = visual;
overlay_info->transparent_type = GDK_GL_OVERLAY_TRANSPARENT_NONE;
overlay_info->value = 0;
overlay_info->layer = 0;
GDK_GL_NOTE (MISC, g_message (" -- not overlay visual"));
return FALSE;
}
/**
* gdk_window_set_gl_capability:
* @window: the #GdkWindow to be used as the rendering area.
* @glconfig: a #GdkGLConfig.
* @attrib_list: this must be set to NULL or empty (first attribute of None).
*
* Set the OpenGL-capability to the @window.
* This function creates a new #GdkGLWindow held by the @window.
* attrib_list is currently unused. This must be set to NULL or empty
* (first attribute of None).
*
* Return value: the #GdkGLWindow used by the @window if it is successful,
* NULL otherwise.
**/
GdkGLWindow *
gdk_window_set_gl_capability (GdkWindow *window,
GdkGLConfig *glconfig,
const int *attrib_list)
{
GdkGLWindow *glwindow;
GDK_GL_NOTE_FUNC ();
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
g_return_val_if_fail (GDK_IS_GL_CONFIG (glconfig), NULL);
if (quark_gl_window == 0)
quark_gl_window = g_quark_from_static_string (quark_gl_window_string);
/* If already set */
glwindow = g_object_get_qdata (G_OBJECT (window), quark_gl_window);
if (glwindow != NULL)
return glwindow;
/*
* Create GdkGLWindow
*/
glwindow = gdk_gl_window_new (glconfig, window, attrib_list);
if (glwindow == NULL)
{
g_warning ("cannot create GdkGLWindow\n");
return NULL;
}
g_object_set_qdata_full (G_OBJECT (window), quark_gl_window, glwindow,
(GDestroyNotify) g_object_unref);
/*
* Set a background of "None" on window to avoid AIX X server crash
*/
GDK_GL_NOTE (MISC,
g_message (" - window->bg_pixmap = %p",
(void*)gdk_window_get_background_pattern (window)));
gdk_window_set_background_pattern (window, NULL);
GDK_GL_NOTE (MISC,
g_message (" - window->bg_pixmap = %p",
(void*)gdk_window_get_background_pattern (window)));
return glwindow;
}
static gboolean
_gdk_win32_gl_context_impl_make_current (GdkGLContext *glcontext,
GdkGLDrawable *draw,
GdkGLDrawable *read)
{
GdkGLWindowImplWin32 *impl;
HDC hdc;
HGLRC hglrc;
g_return_val_if_fail (GDK_IS_WIN32_GL_CONTEXT (glcontext), FALSE);
g_return_val_if_fail (GDK_IS_WIN32_GL_WINDOW (draw), FALSE);
if (GDK_GL_WINDOW_IS_DESTROYED (GDK_GL_WINDOW (draw)) ||
GDK_GL_CONTEXT_IS_DESTROYED (glcontext))
return FALSE;
impl = GDK_GL_WINDOW_IMPL_WIN32 (GDK_GL_WINDOW (draw)->impl);
/* Get DC. */
hdc = GDK_GL_WINDOW_IMPL_WIN32_HDC_GET (impl);
/* Get GLRC. */
hglrc = GDK_GL_CONTEXT_HGLRC (glcontext);
GDK_GL_NOTE_FUNC_IMPL ("wglMakeCurrent");
if (!wglMakeCurrent (hdc, hglrc))
{
g_warning ("wglMakeCurrent() failed");
_gdk_gl_context_set_gl_drawable (glcontext, NULL);
/* currently unused. */
/* _gdk_gl_context_set_gl_drawable_read (glcontext, NULL); */
return FALSE;
}
_gdk_gl_context_set_gl_drawable (glcontext, draw);
/* currently unused. */
/* _gdk_gl_context_set_gl_drawable_read (glcontext, read); */
if (_GDK_GL_CONFIG_AS_SINGLE_MODE (impl->glconfig))
{
/* We do this because we are treating a double-buffered frame
buffer as a single-buffered frame buffer because the system
does not appear to export any suitable single-buffered
visuals (in which the following are necessary). */
glDrawBuffer (GL_FRONT);
glReadBuffer (GL_FRONT);
}
GDK_GL_NOTE (MISC, _gdk_gl_print_gl_info ());
/*
* Do *NOT* release DC.
*
* With some graphics card, DC owned by rendering thread will be needed.
*/
return TRUE;
}
/**
* gdk_gl_query_gl_extension:
* @extension: name of OpenGL extension.
*
* Determines whether a given OpenGL extension is supported.
*
* There must be a valid current rendering context to call
* gdk_gl_query_gl_extension().
*
* gdk_gl_query_gl_extension() returns information about OpenGL extensions
* only. This means that window system dependent extensions (for example,
* GLX extensions) are not reported by gdk_gl_query_gl_extension().
*
* Return value: TRUE if the OpenGL extension is supported, FALSE if not
* supported.
**/
gboolean
gdk_gl_query_gl_extension (const char *extension)
{
static const GLubyte *extensions = NULL;
const GLubyte *start;
GLubyte *where, *terminator;
/* Extension names should not have spaces. */
where = (GLubyte *) strchr (extension, ' ');
if (where || *extension == '\0')
return FALSE;
if (extensions == NULL)
extensions = glGetString (GL_EXTENSIONS);
/* It takes a bit of care to be fool-proof about parsing the
OpenGL extensions string. Don't be fooled by sub-strings,
etc. */
start = extensions;
for (;;)
{
/* If your application crashes in the strstr routine below,
you are probably calling gdk_gl_query_gl_extension without
having a current window. Calling glGetString without
a current OpenGL context has unpredictable results.
Please fix your program. */
where = (GLubyte *) strstr ((const char *) start, extension);
if (where == NULL)
break;
terminator = where + strlen (extension);
if (where == start || *(where - 1) == ' ')
if (*terminator == ' ' || *terminator == '\0')
{
GDK_GL_NOTE (MISC, g_message (" - %s - supported", extension));
return TRUE;
}
start = terminator;
}
GDK_GL_NOTE (MISC, g_message (" - %s - not supported", extension));
return FALSE;
}
gboolean
gdk_gl_window_make_context_current (GdkGLDrawable *draw, GdkGLContext *glcontext)
{
GdkGLDrawable *read = draw;
GdkGLConfig *glconfig;
Window glxwindow;
GLXContext glxcontext;
g_return_val_if_fail (GDK_IS_GL_WINDOW (draw), FALSE);
g_return_val_if_fail (GDK_IS_GL_CONTEXT_IMPL_X11 (glcontext), FALSE);
glconfig = GDK_GL_WINDOW (draw)->glconfig;
glxwindow = GDK_GL_WINDOW (draw)->glxwindow;
glxcontext = GDK_GL_CONTEXT_GLXCONTEXT (glcontext);
if (glxwindow == None || glxcontext == NULL)
return FALSE;
GDK_GL_NOTE (MISC, g_message (" -- Window: screen number = %d", GDK_SCREEN_XNUMBER (gdk_drawable_get_screen (GDK_DRAWABLE (draw)))));
GDK_GL_NOTE (MISC, g_message (" -- Window: visual id = 0x%lx", GDK_VISUAL_XVISUAL (gdk_drawable_get_visual (GDK_DRAWABLE (draw)))->visualid));
GDK_GL_NOTE_FUNC_IMPL ("glXMakeCurrent");
if (!glXMakeCurrent (GDK_GL_CONFIG_XDISPLAY (glconfig), glxwindow, glxcontext))
{
g_warning ("glXMakeCurrent() failed");
_gdk_gl_context_set_gl_drawable (glcontext, NULL);
return FALSE;
}
_gdk_gl_context_set_gl_drawable (glcontext, draw);
if (_GDK_GL_CONFIG_AS_SINGLE_MODE (glconfig))
{
/* We do this because we are treating a double-buffered frame
buffer as a single-buffered frame buffer because the system
does not appear to export any suitable single-buffered
visuals (in which the following are necessary). */
glDrawBuffer (GL_FRONT);
glReadBuffer (GL_FRONT);
}
GDK_GL_NOTE (MISC, _gdk_gl_print_gl_info ());
return TRUE;
}
static gboolean
gdk_gl_pixmap_impl_win32_make_context_current (GdkGLDrawable *draw,
GdkGLDrawable *read,
GdkGLContext *glcontext)
{
GdkGLPixmapImplWin32 *impl;
HDC hdc;
HGLRC hglrc;
g_return_val_if_fail (GDK_IS_GL_PIXMAP_IMPL_WIN32 (draw), FALSE);
g_return_val_if_fail (GDK_IS_GL_CONTEXT_IMPL_WIN32 (glcontext), FALSE);
if (GDK_GL_PIXMAP_IS_DESTROYED (draw) ||
GDK_GL_CONTEXT_IS_DESTROYED (glcontext))
return FALSE;
impl = GDK_GL_PIXMAP_IMPL_WIN32 (draw);
/* Get DC. */
hdc = GDK_GL_PIXMAP_IMPL_WIN32_HDC_GET (impl);
/* Get GLRC. */
hglrc = GDK_GL_CONTEXT_HGLRC (glcontext);
GDK_GL_NOTE_FUNC_IMPL ("wglMakeCurrent");
if (!wglMakeCurrent (hdc, hglrc))
{
_gdk_gl_context_set_gl_drawable (glcontext, NULL);
/* currently unused. */
/* _gdk_gl_context_set_gl_drawable_read (glcontext, NULL); */
return FALSE;
}
_gdk_gl_context_set_gl_drawable (glcontext, draw);
/* currently unused. */
/* _gdk_gl_context_set_gl_drawable_read (glcontext, read); */
if (_GDK_GL_CONFIG_AS_SINGLE_MODE (impl->glconfig))
{
/* We do this because we are treating a double-buffered frame
buffer as a single-buffered frame buffer because the system
does not appear to export any suitable single-buffered
visuals (in which the following are necessary). */
glDrawBuffer (GL_FRONT);
glReadBuffer (GL_FRONT);
}
GDK_GL_NOTE (MISC, _gdk_gl_print_gl_info ());
/* Do *NOT* release DC. */
return TRUE;
}
static void
gdk_gl_context_insert (GdkGLContext *glcontext)
{
GdkGLContextImplWin32 *impl;
GDK_GL_NOTE_FUNC_PRIVATE ();
g_return_if_fail (GDK_IS_WIN32_GL_CONTEXT (glcontext));
if (gl_context_ht == NULL)
{
GDK_GL_NOTE (MISC, g_message (" -- Create GL context hash table."));
/* We do not know the storage type of HGLRC. We assume that it is
a pointer as NULL values are specified for this type. */
gl_context_ht = g_hash_table_new (g_direct_hash,
g_direct_equal);
}
impl = GDK_GL_CONTEXT_IMPL_WIN32 (glcontext->impl);
g_hash_table_insert (gl_context_ht, impl->hglrc, glcontext);
}
static void
gdk_gl_context_remove (GdkGLContext *glcontext)
{
GdkGLContextImplWin32 *impl;
GDK_GL_NOTE_FUNC_PRIVATE ();
g_return_if_fail (GDK_IS_WIN32_GL_CONTEXT (glcontext));
if (gl_context_ht == NULL)
return;
impl = GDK_GL_CONTEXT_IMPL_WIN32 (glcontext->impl);
g_hash_table_remove (gl_context_ht, impl->hglrc);
if (g_hash_table_size (gl_context_ht) == 0)
{
GDK_GL_NOTE (MISC, g_message (" -- Destroy GL context hash table."));
g_hash_table_destroy (gl_context_ht);
gl_context_ht = NULL;
}
}
static __SOVPropArray *
gdk_gl_overlay_get_sov_props (GdkScreen *screen)
{
__SOVPropArray *sov_props;
GdkWindow *root_window;
#ifdef GDKGLEXT_MULTIHEAD_SUPPORT
GdkDisplay *display;
#endif /* GDKGLEXT_MULTIHEAD_SUPPORT */
Display *xdisplay;
Atom xa_sov;
Status status;
Atom actual_type;
int actual_format;
unsigned long nitems, bytes_after;
unsigned char *prop = NULL;
GDK_GL_NOTE_FUNC_PRIVATE ();
#ifdef GDKGLEXT_MULTIHEAD_SUPPORT
root_window = gdk_screen_get_root_window (screen);
#else /* GDKGLEXT_MULTIHEAD_SUPPORT */
root_window = gdk_get_default_root_window ();
#endif /* GDKGLEXT_MULTIHEAD_SUPPORT */
if (quark_sov_props == 0)
quark_sov_props = g_quark_from_static_string (quark_sov_props_string);
sov_props = g_object_get_qdata (G_OBJECT (root_window), quark_sov_props);
if (sov_props != NULL)
return sov_props;
sov_props = g_malloc (sizeof (__SOVPropArray));
#ifdef GDKGLEXT_MULTIHEAD_SUPPORT
display = gdk_screen_get_display (screen);
xdisplay = GDK_DISPLAY_XDISPLAY (display);
xa_sov = gdk_x11_get_xatom_by_name_for_display (display, "SERVER_OVERLAY_VISUALS");
#else /* GDKGLEXT_MULTIHEAD_SUPPORT */
xdisplay = gdk_x11_get_default_xdisplay ();
xa_sov = gdk_x11_get_xatom_by_name ("SERVER_OVERLAY_VISUALS");
#endif /* GDKGLEXT_MULTIHEAD_SUPPORT */
status = XGetWindowProperty (xdisplay, GDK_WINDOW_XWINDOW (root_window),
xa_sov, 0L, 1000000L, False, AnyPropertyType,
&actual_type, &actual_format,
&nitems, &bytes_after, &prop);
if (status != Success ||
actual_type == None ||
actual_format != 32 ||
nitems < 4)
{
GDK_GL_NOTE (MISC, g_message (" -- SERVER_OVERLAY_VISUALS: not supported"));
if (prop != NULL)
XFree (prop);
sov_props->prop = NULL;
sov_props->num = 0;
}
else
{
GDK_GL_NOTE (MISC, g_message (" -- SERVER_OVERLAY_VISUALS: supported"));
sov_props->prop = (__SOVProp *) prop;
sov_props->num = nitems / (sizeof (__SOVProp) / 4);
}
g_object_set_qdata_full (G_OBJECT (root_window), quark_sov_props, sov_props,
(GDestroyNotify) sov_prop_array_destroy);
#ifdef G_ENABLE_DEBUG
if (gdk_gl_debug_flags & GDK_GL_DEBUG_MISC)
{
#ifdef GDKGLEXT_MULTIHEAD_SUPPORT
int screen_num = GDK_SCREEN_XNUMBER (screen);
#else /* GDKGLEXT_MULTIHEAD_SUPPORT */
int screen_num = gdk_x11_get_default_screen ();
#endif /* GDKGLEXT_MULTIHEAD_SUPPORT */
int i;
g_message (" -- SERVER_OVERLAY_VISUALS: properties");
g_print ("screen\tvisual\ttype\tvalue\tlayer\n");
for (i = 0; i < sov_props->num; i++)
{
g_print ("%d\t0x%lx\t%lu\t%lu\t%ld\n",
screen_num,
(VisualID) (sov_props->prop[i].overlay_visual),
(CARD32) (sov_props->prop[i].transparent_type),
(CARD32) (sov_props->prop[i].value),
(INT32) (sov_props->prop[i].layer));
}
}
#endif /* G_ENABLE_DEBUG */
return sov_props;
}
GdkGLProc
gdk_gl_get_proc_address (const char *proc_name)
{
typedef GdkGLProc (*__glXGetProcAddressProc) (const GLubyte *);
static __glXGetProcAddressProc glx_get_proc_address = (__glXGetProcAddressProc) -1;
gchar *file_name;
GModule *module;
GdkGLProc proc_address = NULL;
GDK_GL_NOTE_FUNC ();
if (glx_get_proc_address == (__glXGetProcAddressProc) -1) {
/*
* Look up glXGetProcAddress () function.
*/
file_name = g_module_build_path (NULL, "GL");
GDK_GL_NOTE (MISC, g_message (" - Open %s", file_name));
module = g_module_open (file_name, G_MODULE_BIND_LAZY);
g_free (file_name);
if (module) {
g_module_symbol (module, "glXGetProcAddress", (gpointer) &glx_get_proc_address);
if (glx_get_proc_address == NULL) {
g_module_symbol (module, "glXGetProcAddressARB", (gpointer) &glx_get_proc_address);
if (glx_get_proc_address == NULL) {
g_module_symbol (module, "glXGetProcAddressEXT", (gpointer) &glx_get_proc_address);
}
}
GDK_GL_NOTE (MISC, g_message (" - glXGetProcAddress () - %s", glx_get_proc_address ? "supported" : "not supported"));
g_module_close (module);
} else {
g_warning ("Cannot open %s", file_name);
glx_get_proc_address = NULL;
return NULL;
}
}
/* Try glXGetProcAddress () */
if (glx_get_proc_address) {
proc_address = glx_get_proc_address ((unsigned char *) proc_name);
GDK_GL_NOTE (IMPL, g_message (" ** glXGetProcAddress () - %s", proc_address ? "succeeded" : "failed"));
if (proc_address)
return proc_address;
}
/* Try g_module_symbol () */
/* libGL */
file_name = g_module_build_path (NULL, "GL");
GDK_GL_NOTE (MISC, g_message (" - Open %s", file_name));
module = g_module_open (file_name, G_MODULE_BIND_LAZY);
g_free (file_name);
if (module) {
g_module_symbol (module, proc_name, (gpointer) &proc_address);
GDK_GL_NOTE (MISC, g_message (" - g_module_symbol () - %s", proc_address ? "succeeded" : "failed"));
g_module_close (module);
} else {
g_warning ("Cannot open %s", file_name);
}
if (!proc_address) {
/* libGLcore */
file_name = g_module_build_path (NULL, "GLcore");
GDK_GL_NOTE (MISC, g_message (" - Open %s", file_name));
module = g_module_open (file_name, G_MODULE_BIND_LAZY);
g_free (file_name);
if (module) {
g_module_symbol (module, proc_name, (gpointer) &proc_address);
GDK_GL_NOTE (MISC, g_message (" - g_module_symbol () - %s", proc_address ? "succeeded" : "failed"));
g_module_close (module);
}
}
return proc_address;
}
static gboolean
gdk_gl_config_setup_pfd (CONST PIXELFORMATDESCRIPTOR *req_pfd,
PIXELFORMATDESCRIPTOR *pfd)
{
HDC hdc;
PIXELFORMATDESCRIPTOR temp_pfd;
PIXELFORMATDESCRIPTOR w_pfd, b_pfd;
int w_pf, b_pf;
GDK_GL_NOTE_FUNC_PRIVATE ();
/* Get DC. */
hdc = GetDC (NULL);
if (hdc == NULL)
{
g_warning ("cannot get DC");
return FALSE;
}
w_pfd = *req_pfd;
w_pfd.dwFlags &= ~PFD_DRAW_TO_BITMAP;
w_pfd.dwFlags |= PFD_DRAW_TO_WINDOW;
w_pf = _gdk_win32_gl_config_find_pixel_format (hdc, &w_pfd, &w_pfd);
GDK_GL_NOTE (MISC, g_message (" -- pixel format for windows = 0x%x", w_pf));
GDK_GL_NOTE (MISC, _gdk_win32_gl_print_pfd (&w_pfd));
b_pfd = *req_pfd;
b_pfd.dwFlags &= ~PFD_DRAW_TO_WINDOW;
b_pfd.dwFlags |= PFD_DRAW_TO_BITMAP;
b_pf = _gdk_win32_gl_config_find_pixel_format (hdc, &b_pfd, &b_pfd);
GDK_GL_NOTE (MISC, g_message (" -- pixel format for bitmaps = 0x%x", b_pf));
GDK_GL_NOTE (MISC, _gdk_win32_gl_print_pfd (&b_pfd));
/* Release DC. */
ReleaseDC (NULL, hdc);
if (w_pf == 0 && b_pf == 0)
return FALSE;
if (w_pf == 0)
{
temp_pfd = b_pfd;
temp_pfd.dwFlags = req_pfd->dwFlags;
}
else if (b_pf == 0)
{
temp_pfd = w_pfd;
temp_pfd.dwFlags = req_pfd->dwFlags;
}
else
{
temp_pfd = w_pfd;
temp_pfd.dwFlags = req_pfd->dwFlags;
if (temp_pfd.cColorBits > b_pfd.cColorBits)
{
temp_pfd.cColorBits = b_pfd.cColorBits;
temp_pfd.cRedBits = b_pfd.cRedBits;
temp_pfd.cRedShift = b_pfd.cRedShift;
temp_pfd.cGreenBits = b_pfd.cGreenBits;
temp_pfd.cGreenShift = b_pfd.cGreenShift;
temp_pfd.cBlueBits = b_pfd.cBlueBits;
temp_pfd.cBlueShift = b_pfd.cBlueShift;
}
if (temp_pfd.cAlphaBits > b_pfd.cAlphaBits)
{
temp_pfd.cAlphaBits = b_pfd.cAlphaBits;
temp_pfd.cAlphaShift = b_pfd.cAlphaShift;
}
if (temp_pfd.cAccumBits > b_pfd.cAccumBits)
{
temp_pfd.cAccumBits = b_pfd.cAccumBits;
temp_pfd.cAccumRedBits = b_pfd.cAccumRedBits;
temp_pfd.cAccumGreenBits = b_pfd.cAccumGreenBits;
temp_pfd.cAccumBlueBits = b_pfd.cAccumBlueBits;
temp_pfd.cAccumAlphaBits = b_pfd.cAccumAlphaBits;
}
temp_pfd.cDepthBits = MIN (temp_pfd.cDepthBits, b_pfd.cDepthBits);
temp_pfd.cStencilBits = MIN (temp_pfd.cStencilBits, b_pfd.cStencilBits);
temp_pfd.cAuxBuffers = MIN (temp_pfd.cAuxBuffers, b_pfd.cAuxBuffers);
}
*pfd = temp_pfd;
return TRUE;
}
/*
* attrib_list is currently unused. This must be set to NULL or empty
* (first attribute of None). See GLX 1.3 spec.
*/
GdkGLWindow *
_gdk_win32_gl_window_impl_new (GdkGLWindow *glwindow,
GdkGLConfig *glconfig,
GdkWindow *window,
const int *attrib_list)
{
GdkGLWindowImplWin32 *win32_impl;
HWND hwnd;
DWORD wndclass_style;
gboolean need_release_dc;
HDC hdc = NULL;
PIXELFORMATDESCRIPTOR pfd;
int pixel_format;
GDK_GL_NOTE_FUNC ();
g_return_val_if_fail (GDK_IS_WIN32_GL_WINDOW (glwindow), NULL);
g_return_val_if_fail (GDK_IS_WIN32_GL_CONFIG (glconfig), NULL);
g_return_val_if_fail (GDK_IS_WINDOW (window), NULL);
hwnd = (HWND) gdk_win32_window_get_handle (window);
/* Private DC? */
wndclass_style = GetClassLong (hwnd, GCL_STYLE);
if (wndclass_style & CS_OWNDC)
{
GDK_GL_NOTE (MISC, g_message (" -- Private DC"));
need_release_dc = FALSE;
}
else
{
GDK_GL_NOTE (MISC, g_message (" -- Common DC"));
need_release_dc = TRUE;
}
/* Get DC. */
hdc = GetDC (hwnd);
if (hdc == NULL)
{
g_warning ("cannot get DC");
goto FAIL;
}
/*
* Choose pixel format.
*/
pfd = *(GDK_GL_CONFIG_PFD (glconfig));
/* Draw to window */
pfd.dwFlags &= ~PFD_DRAW_TO_BITMAP;
pfd.dwFlags |= PFD_DRAW_TO_WINDOW;
/* Request pfd.cColorBits should exclude alpha bitplanes. */
pfd.cColorBits = pfd.cRedBits + pfd.cGreenBits + pfd.cBlueBits;
GDK_GL_NOTE_FUNC_IMPL ("ChoosePixelFormat");
pixel_format = ChoosePixelFormat (hdc, &pfd);
if (pixel_format == 0)
{
g_warning ("cannot choose pixel format");
goto FAIL;
}
/*
* Set pixel format.
*/
GDK_GL_NOTE_FUNC_IMPL ("SetPixelFormat");
if (!SetPixelFormat (hdc, pixel_format, &pfd))
{
g_warning ("cannot set pixel format");
goto FAIL;
}
DescribePixelFormat (hdc, pixel_format, sizeof (pfd), &pfd);
GDK_GL_NOTE (MISC, g_message (" -- impl->pixel_format = 0x%x", pixel_format));
GDK_GL_NOTE (MISC, _gdk_win32_gl_print_pfd (&pfd));
if (need_release_dc)
{
/* Release DC. */
ReleaseDC (hwnd, hdc);
hdc = NULL;
}
/*
* Instantiate the GdkGLWindowImplWin32 object.
*/
win32_impl = g_object_new (GDK_TYPE_GL_WINDOW_IMPL_WIN32, NULL);
win32_impl->hwnd = hwnd;
win32_impl->pfd = pfd;
win32_impl->pixel_format = pixel_format;
win32_impl->glconfig = glconfig;
g_object_ref (G_OBJECT (win32_impl->glconfig));
win32_impl->hdc = hdc;
win32_impl->need_release_dc = need_release_dc;
win32_impl->is_destroyed = FALSE;
glwindow->impl = GDK_GL_WINDOW_IMPL(win32_impl);
glwindow->window = window;
g_object_add_weak_pointer (G_OBJECT (glwindow->window),
(gpointer *) &(glwindow->window));
return glwindow;
FAIL:
/* Release DC. */
if (need_release_dc && hdc != NULL)
ReleaseDC (hwnd, hdc);
return NULL;
}
/*
* attrib_list is currently unused. This must be set to NULL or empty
* (first attribute of None). See GLX 1.3 spec.
*/
GdkGLPixmap *
gdk_gl_pixmap_new (GdkGLConfig *glconfig,
GdkPixmap *pixmap,
const int *attrib_list)
{
GdkGLPixmap *glpixmap;
GdkGLPixmapImplWin32 *impl;
gint width, height;
gint depth;
GdkPixmap *pixmap_gl = NULL;
HBITMAP hbitmap_gl;
HDC hdc_gl = NULL;
PIXELFORMATDESCRIPTOR pfd;
int pixel_format;
HBITMAP hbitmap_gdk;
HDC hdc_gdk = NULL;
GDK_GL_NOTE_FUNC ();
g_return_val_if_fail (GDK_IS_GL_CONFIG_IMPL_WIN32 (glconfig), NULL);
g_return_val_if_fail (GDK_IS_PIXMAP (pixmap), NULL);
/*
* Create offscreen rendering area.
*/
gdk_drawable_get_size (GDK_DRAWABLE (pixmap), &width, &height);
depth = gdk_drawable_get_depth (GDK_DRAWABLE (pixmap));
pixmap_gl = gdk_pixmap_new (NULL, width, height, depth);
if (pixmap_gl == NULL)
goto FAIL;
/*
* Source (OpenGL) DIB
*/
hbitmap_gl = (HBITMAP) gdk_win32_drawable_get_handle (GDK_DRAWABLE (pixmap_gl));
/* Create a memory DC. */
hdc_gl = CreateCompatibleDC (NULL);
if (hdc_gl == NULL)
{
g_warning ("cannot create a memory DC");
goto FAIL;
}
/* Select the bitmap. */
if (SelectObject (hdc_gl, hbitmap_gl) == NULL)
{
g_warning ("cannot select DIB");
goto FAIL;
}
/*
* Choose pixel format.
*/
pfd = *(GDK_GL_CONFIG_PFD (glconfig));
/* Draw to bitmap */
pfd.dwFlags &= ~PFD_DRAW_TO_WINDOW;
pfd.dwFlags |= PFD_DRAW_TO_BITMAP;
/* Request pfd.cColorBits should exclude alpha bitplanes. */
pfd.cColorBits = pfd.cRedBits + pfd.cGreenBits + pfd.cBlueBits;
GDK_GL_NOTE_FUNC_IMPL ("ChoosePixelFormat");
pixel_format = ChoosePixelFormat (hdc_gl, &pfd);
if (pixel_format == 0)
{
g_warning ("cannot choose pixel format");
goto FAIL;
}
/*
* Set pixel format.
*/
GDK_GL_NOTE_FUNC_IMPL ("SetPixelFormat");
if (!SetPixelFormat (hdc_gl, pixel_format, &pfd))
{
g_warning ("cannot set pixel format");
goto FAIL;
}
DescribePixelFormat (hdc_gl, pixel_format, sizeof (pfd), &pfd);
GDK_GL_NOTE (MISC, g_message (" -- impl->pixel_format = 0x%x", pixel_format));
GDK_GL_NOTE (MISC, _gdk_win32_gl_print_pfd (&pfd));
/*
* Destination (GDK) DIB
*/
hbitmap_gdk = (HBITMAP) gdk_win32_drawable_get_handle (GDK_DRAWABLE (pixmap));
/* Create a memory DC. */
hdc_gdk = CreateCompatibleDC (hdc_gl);
if (hdc_gdk == NULL)
{
g_warning ("cannot create a memory DC");
goto FAIL;
}
/*
* Instantiate the GdkGLPixmapImplWin32 object.
*/
glpixmap = g_object_new (GDK_TYPE_GL_PIXMAP_IMPL_WIN32, NULL);
impl = GDK_GL_PIXMAP_IMPL_WIN32 (glpixmap);
glpixmap->drawable = GDK_DRAWABLE (pixmap);
g_object_add_weak_pointer (G_OBJECT (glpixmap->drawable),
(gpointer *) &(glpixmap->drawable));
impl->pixmap_gl = pixmap_gl;
impl->width = width;
impl->height = height;
impl->pfd = pfd;
impl->pixel_format = pixel_format;
impl->glconfig = glconfig;
g_object_ref (G_OBJECT (impl->glconfig));
impl->hdc_gl = hdc_gl;
impl->hdc_gdk = hdc_gdk;
impl->hbitmap_gdk = hbitmap_gdk;
impl->is_destroyed = FALSE;
return glpixmap;
FAIL:
if (hdc_gdk != NULL)
DeleteDC (hdc_gdk);
if (hdc_gl != NULL)
DeleteDC (hdc_gl);
if (pixmap_gl != NULL)
g_object_unref (G_OBJECT (pixmap_gl));
return NULL;
}
GdkGLProc
gdk_gl_get_proc_address (const char *proc_name)
{
typedef GdkGLProc (*__glXGetProcAddressProc) (const GLubyte *);
static __glXGetProcAddressProc glx_get_proc_address = (__glXGetProcAddressProc) -1;
const char *image_name;
static const struct mach_header *libgl_image = NULL;
static const struct mach_header *libglu_image = NULL;
NSSymbol symbol;
char *symbol_name;
GdkGLProc proc_address;
GDK_GL_NOTE_FUNC ();
if (strncmp ("glu", proc_name, 3) != 0)
{
/* libGL */
if (libgl_image == NULL)
{
image_name = g_getenv ("GDK_GL_LIBGL_PATH");
if (image_name == NULL)
image_name = _GDK_GL_LIBGL_PATH;
GDK_GL_NOTE (MISC, g_message (" - Add Mach-O image %s", image_name));
libgl_image = NSAddImage (image_name, NSADDIMAGE_OPTION_RETURN_ON_ERROR);
if (libgl_image == NULL)
{
g_warning ("Cannot add Mach-O image %s", image_name);
return NULL;
}
}
if (glx_get_proc_address == (__glXGetProcAddressProc) -1)
{
/*
* Look up glXGetProcAddress () function.
*/
symbol = NSLookupSymbolInImage (libgl_image,
"_glXGetProcAddress",
NSLOOKUPSYMBOLINIMAGE_OPTION_BIND |
NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR);
if (symbol == NULL)
{
symbol = NSLookupSymbolInImage (libgl_image,
"_glXGetProcAddressARB",
NSLOOKUPSYMBOLINIMAGE_OPTION_BIND |
NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR);
if (symbol == NULL)
{
symbol = NSLookupSymbolInImage (libgl_image,
"_glXGetProcAddressEXT",
NSLOOKUPSYMBOLINIMAGE_OPTION_BIND |
NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR);
}
}
GDK_GL_NOTE (MISC, g_message (" - glXGetProcAddress () - %s",
symbol ? "supported" : "not supported"));
if (symbol != NULL)
glx_get_proc_address = NSAddressOfSymbol (symbol);
else
glx_get_proc_address = NULL;
}
/* Try glXGetProcAddress () */
if (glx_get_proc_address != NULL)
{
proc_address = glx_get_proc_address (proc_name);
GDK_GL_NOTE (IMPL, g_message (" ** glXGetProcAddress () - %s",
proc_address ? "succeeded" : "failed"));
if (proc_address != NULL)
return proc_address;
}
/* Try Mach-O dyld */
symbol_name = g_strconcat ("_", proc_name, NULL);
symbol = NSLookupSymbolInImage (libgl_image,
symbol_name,
NSLOOKUPSYMBOLINIMAGE_OPTION_BIND |
NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR);
GDK_GL_NOTE (MISC, g_message (" - NSLookupSymbolInImage () - %s",
symbol ? "succeeded" : "failed"));
g_free (symbol_name);
if (symbol != NULL)
return NSAddressOfSymbol (symbol);
}
else
{
/* libGLU */
if (libglu_image == NULL)
{
image_name = g_getenv ("GDK_GL_LIBGLU_PATH");
if (image_name == NULL)
image_name = _GDK_GL_LIBGLU_PATH;
GDK_GL_NOTE (MISC, g_message (" - Add Mach-O image %s", image_name));
libglu_image = NSAddImage (image_name, NSADDIMAGE_OPTION_RETURN_ON_ERROR);
if (libglu_image == NULL)
{
g_warning ("Cannot add Mach-O image %s", image_name);
return NULL;
}
}
symbol_name = g_strconcat ("_", proc_name, NULL);
symbol = NSLookupSymbolInImage (libglu_image,
symbol_name,
NSLOOKUPSYMBOLINIMAGE_OPTION_BIND |
NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR);
GDK_GL_NOTE (MISC, g_message (" - NSLookupSymbolInImage () - %s",
symbol ? "succeeded" : "failed"));
g_free (symbol_name);
if (symbol != NULL)
return NSAddressOfSymbol (symbol);
}
return NULL;
}
GdkGLProc
_gdk_x11_gl_get_proc_address (const char *proc_name)
{
#ifdef __APPLE__
#define _GDK_GL_LIBGL_PATH "/usr/X11R6/lib/libGL.1.dylib"
#define _GDK_GL_LIBGLU_PATH "/usr/X11R6/lib/libGLU.1.dylib"
typedef GdkGLProc (*__glXGetProcAddressProc) (const GLubyte *);
static __glXGetProcAddressProc glx_get_proc_address = (__glXGetProcAddressProc) -1;
const char *image_name;
static const struct mach_header *libgl_image = NULL;
static const struct mach_header *libglu_image = NULL;
NSSymbol symbol;
char *symbol_name;
GdkGLProc proc_address;
GDK_GL_NOTE_FUNC ();
if (strncmp ("glu", proc_name, 3) != 0)
{
/* libGL */
if (libgl_image == NULL)
{
image_name = g_getenv ("GDK_GL_LIBGL_PATH");
if (image_name == NULL)
image_name = _GDK_GL_LIBGL_PATH;
GDK_GL_NOTE (MISC, g_message (" - Add Mach-O image %s", image_name));
libgl_image = NSAddImage (image_name, NSADDIMAGE_OPTION_RETURN_ON_ERROR);
if (libgl_image == NULL)
{
g_warning ("Cannot add Mach-O image %s", image_name);
return NULL;
}
}
if (glx_get_proc_address == (__glXGetProcAddressProc) -1)
{
/*
* Look up glXGetProcAddress () function.
*/
symbol = NSLookupSymbolInImage (libgl_image,
"_glXGetProcAddress",
NSLOOKUPSYMBOLINIMAGE_OPTION_BIND |
NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR);
if (symbol == NULL)
{
symbol = NSLookupSymbolInImage (libgl_image,
"_glXGetProcAddressARB",
NSLOOKUPSYMBOLINIMAGE_OPTION_BIND |
NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR);
if (symbol == NULL)
{
symbol = NSLookupSymbolInImage (libgl_image,
"_glXGetProcAddressEXT",
NSLOOKUPSYMBOLINIMAGE_OPTION_BIND |
NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR);
}
}
GDK_GL_NOTE (MISC, g_message (" - glXGetProcAddress () - %s",
symbol ? "supported" : "not supported"));
if (symbol != NULL)
glx_get_proc_address = NSAddressOfSymbol (symbol);
else
glx_get_proc_address = NULL;
}
/* Try glXGetProcAddress () */
if (glx_get_proc_address != NULL)
{
proc_address = glx_get_proc_address ((unsigned char *) proc_name);
GDK_GL_NOTE (IMPL, g_message (" ** glXGetProcAddress () - %s",
proc_address ? "succeeded" : "failed"));
if (proc_address != NULL)
return proc_address;
}
/* Try Mach-O dyld */
symbol_name = g_strconcat ("_", proc_name, NULL);
symbol = NSLookupSymbolInImage (libgl_image,
symbol_name,
NSLOOKUPSYMBOLINIMAGE_OPTION_BIND |
NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR);
GDK_GL_NOTE (MISC, g_message (" - NSLookupSymbolInImage () - %s",
symbol ? "succeeded" : "failed"));
g_free (symbol_name);
if (symbol != NULL)
return NSAddressOfSymbol (symbol);
}
else
{
/* libGLU */
if (libglu_image == NULL)
{
image_name = g_getenv ("GDK_GL_LIBGLU_PATH");
if (image_name == NULL)
image_name = _GDK_GL_LIBGLU_PATH;
GDK_GL_NOTE (MISC, g_message (" - Add Mach-O image %s", image_name));
libglu_image = NSAddImage (image_name, NSADDIMAGE_OPTION_RETURN_ON_ERROR);
if (libglu_image == NULL)
{
g_warning ("Cannot add Mach-O image %s", image_name);
return NULL;
}
}
symbol_name = g_strconcat ("_", proc_name, NULL);
symbol = NSLookupSymbolInImage (libglu_image,
symbol_name,
NSLOOKUPSYMBOLINIMAGE_OPTION_BIND |
NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR);
GDK_GL_NOTE (MISC, g_message (" - NSLookupSymbolInImage () - %s",
symbol ? "succeeded" : "failed"));
g_free (symbol_name);
if (symbol != NULL)
return NSAddressOfSymbol (symbol);
}
return NULL;
#else /* __APPLE__ */
typedef GdkGLProc (*__glXGetProcAddressProc) (const GLubyte *);
static __glXGetProcAddressProc glx_get_proc_address = (__glXGetProcAddressProc) -1;
gchar *file_name;
GModule *module;
GdkGLProc proc_address = NULL;
GDK_GL_NOTE_FUNC ();
if (strncmp ("glu", proc_name, 3) != 0)
{
if (glx_get_proc_address == (__glXGetProcAddressProc) -1)
{
/*
* Look up glXGetProcAddress () function.
*/
file_name = g_module_build_path (NULL, "GL");
GDK_GL_NOTE (MISC, g_message (" - Open %s", file_name));
module = g_module_open (file_name, G_MODULE_BIND_LAZY);
g_free (file_name);
if (module != NULL)
{
g_module_symbol (module, "glXGetProcAddress",
(gpointer) &glx_get_proc_address);
if (glx_get_proc_address == NULL)
{
g_module_symbol (module, "glXGetProcAddressARB",
(gpointer) &glx_get_proc_address);
if (glx_get_proc_address == NULL)
{
g_module_symbol (module, "glXGetProcAddressEXT",
(gpointer) &glx_get_proc_address);
}
}
GDK_GL_NOTE (MISC, g_message (" - glXGetProcAddress () - %s",
glx_get_proc_address ? "supported" : "not supported"));
g_module_close (module);
}
else
{
g_warning ("Cannot open %s", file_name);
glx_get_proc_address = NULL;
return NULL;
}
}
/* Try glXGetProcAddress () */
if (glx_get_proc_address != NULL)
{
proc_address = glx_get_proc_address ((unsigned char *) proc_name);
GDK_GL_NOTE (IMPL, g_message (" ** glXGetProcAddress () - %s",
proc_address ? "succeeded" : "failed"));
if (proc_address != NULL)
return proc_address;
}
/* Try g_module_symbol () */
/* libGL */
file_name = g_module_build_path (NULL, "GL");
GDK_GL_NOTE (MISC, g_message (" - Open %s", file_name));
module = g_module_open (file_name, G_MODULE_BIND_LAZY);
g_free (file_name);
if (module != NULL)
{
g_module_symbol (module, proc_name, (gpointer) &proc_address);
GDK_GL_NOTE (MISC, g_message (" - g_module_symbol () - %s",
proc_address ? "succeeded" : "failed"));
g_module_close (module);
}
else
{
g_warning ("Cannot open %s", file_name);
}
if (proc_address == NULL)
{
/* libGLcore */
file_name = g_module_build_path (NULL, "GLcore");
GDK_GL_NOTE (MISC, g_message (" - Open %s", file_name));
module = g_module_open (file_name, G_MODULE_BIND_LAZY);
g_free (file_name);
if (module != NULL)
{
g_module_symbol (module, proc_name, (gpointer) &proc_address);
GDK_GL_NOTE (MISC, g_message (" - g_module_symbol () - %s",
proc_address ? "succeeded" : "failed"));
g_module_close (module);
}
}
}
else
{
/* libGLU */
file_name = g_module_build_path (NULL, "GLU");
GDK_GL_NOTE (MISC, g_message (" - Open %s", file_name));
module = g_module_open (file_name, G_MODULE_BIND_LAZY);
g_free (file_name);
if (module != NULL)
{
g_module_symbol (module, proc_name, (gpointer) &proc_address);
GDK_GL_NOTE (MISC, g_message (" - g_module_symbol () - %s",
proc_address ? "succeeded" : "failed"));
g_module_close (module);
}
else
{
g_warning ("Cannot open %s", file_name);
}
}
return proc_address;
#endif /* __APPLE__ */
}