725 lines
19 KiB
C
725 lines
19 KiB
C
/* Clutter.
|
|
* An OpenGL based 'interactive canvas' library.
|
|
* Authored By Matthew Allum <mallum@openedhand.com>
|
|
* Copyright (C) 2006-2007 OpenedHand
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "clutter-backend-glx.h"
|
|
#include "clutter-stage-glx.h"
|
|
#include "clutter-glx.h"
|
|
|
|
#include "../clutter-main.h"
|
|
#include "../clutter-feature.h"
|
|
#include "../clutter-color.h"
|
|
#include "../clutter-util.h"
|
|
#include "../clutter-event.h"
|
|
#include "../clutter-enum-types.h"
|
|
#include "../clutter-private.h"
|
|
#include "../clutter-debug.h"
|
|
|
|
#include "cogl.h"
|
|
|
|
#ifdef HAVE_XFIXES
|
|
#include <X11/extensions/Xfixes.h>
|
|
#endif
|
|
|
|
#include <GL/glx.h>
|
|
#include <GL/gl.h>
|
|
|
|
#include <gdk-pixbuf-xlib/gdk-pixbuf-xlib.h>
|
|
|
|
G_DEFINE_TYPE (ClutterStageGlx, clutter_stage_glx, CLUTTER_TYPE_STAGE);
|
|
|
|
static void
|
|
clutter_stage_glx_show (ClutterActor *actor)
|
|
{
|
|
ClutterStageGlx *stage_glx = CLUTTER_STAGE_GLX (actor);
|
|
|
|
if (stage_glx->xwin)
|
|
XMapWindow (stage_glx->xdpy, stage_glx->xwin);
|
|
}
|
|
|
|
static void
|
|
clutter_stage_glx_hide (ClutterActor *actor)
|
|
{
|
|
ClutterStageGlx *stage_glx = CLUTTER_STAGE_GLX (actor);
|
|
|
|
if (stage_glx->xwin)
|
|
XUnmapWindow (stage_glx->xdpy, stage_glx->xwin);
|
|
}
|
|
|
|
static void
|
|
clutter_stage_glx_unrealize (ClutterActor *actor)
|
|
{
|
|
ClutterStageGlx *stage_glx = CLUTTER_STAGE_GLX (actor);
|
|
gboolean was_offscreen;
|
|
|
|
CLUTTER_MARK();
|
|
|
|
g_object_get (actor, "offscreen", &was_offscreen, NULL);
|
|
|
|
if (G_UNLIKELY (was_offscreen))
|
|
{
|
|
if (stage_glx->glxpixmap)
|
|
{
|
|
glXDestroyGLXPixmap (stage_glx->xdpy, stage_glx->glxpixmap);
|
|
stage_glx->glxpixmap = None;
|
|
}
|
|
|
|
if (stage_glx->xpixmap)
|
|
{
|
|
XFreePixmap (stage_glx->xdpy, stage_glx->xpixmap);
|
|
stage_glx->xpixmap = None;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (!stage_glx->is_foreign_xwin && stage_glx->xwin != None)
|
|
{
|
|
XDestroyWindow (stage_glx->xdpy, stage_glx->xwin);
|
|
stage_glx->xwin = None;
|
|
}
|
|
else
|
|
stage_glx->xwin = None;
|
|
}
|
|
|
|
glXMakeCurrent (stage_glx->xdpy, None, NULL);
|
|
if (stage_glx->gl_context != None)
|
|
{
|
|
glXDestroyContext (stage_glx->xdpy, stage_glx->gl_context);
|
|
stage_glx->gl_context = None;
|
|
}
|
|
}
|
|
|
|
static void
|
|
set_wm_protocols (Display *xdisplay,
|
|
Window xwindow)
|
|
{
|
|
Atom protocols[2];
|
|
int n = 0;
|
|
|
|
protocols[n++] = XInternAtom (xdisplay, "WM_DELETE_WINDOW", False);
|
|
protocols[n++] = XInternAtom (xdisplay, "_NET_WM_PING", False);
|
|
|
|
XSetWMProtocols (xdisplay, xwindow, protocols, n);
|
|
}
|
|
|
|
static void
|
|
clutter_stage_glx_realize (ClutterActor *actor)
|
|
{
|
|
ClutterStageGlx *stage_glx = CLUTTER_STAGE_GLX (actor);
|
|
gboolean is_offscreen;
|
|
|
|
CLUTTER_NOTE (MISC, "Realizing main stage");
|
|
|
|
g_object_get (actor, "offscreen", &is_offscreen, NULL);
|
|
|
|
if (G_LIKELY (!is_offscreen))
|
|
{
|
|
int gl_attributes[] =
|
|
{
|
|
GLX_RGBA,
|
|
GLX_DOUBLEBUFFER,
|
|
GLX_RED_SIZE, 1,
|
|
GLX_GREEN_SIZE, 1,
|
|
GLX_BLUE_SIZE, 1,
|
|
GLX_STENCIL_SIZE, 1,
|
|
0
|
|
};
|
|
|
|
if (stage_glx->xvisinfo)
|
|
XFree (stage_glx->xvisinfo);
|
|
|
|
if (stage_glx->xvisinfo == None)
|
|
stage_glx->xvisinfo = glXChooseVisual (stage_glx->xdpy,
|
|
stage_glx->xscreen,
|
|
gl_attributes);
|
|
if (!stage_glx->xvisinfo)
|
|
{
|
|
g_critical ("Unable to find suitable GL visual.");
|
|
CLUTTER_ACTOR_UNSET_FLAGS (actor, CLUTTER_ACTOR_REALIZED);
|
|
return;
|
|
}
|
|
|
|
if (stage_glx->xwin == None)
|
|
{
|
|
CLUTTER_NOTE (MISC, "Creating stage X window");
|
|
stage_glx->xwin = XCreateSimpleWindow (stage_glx->xdpy,
|
|
stage_glx->xwin_root,
|
|
0, 0,
|
|
stage_glx->xwin_width,
|
|
stage_glx->xwin_height,
|
|
0, 0,
|
|
WhitePixel (stage_glx->xdpy,
|
|
stage_glx->xscreen));
|
|
}
|
|
|
|
CLUTTER_NOTE (MISC, "XSelectInput");
|
|
XSelectInput (stage_glx->xdpy, stage_glx->xwin,
|
|
StructureNotifyMask |
|
|
ExposureMask |
|
|
/* FIXME: we may want to eplicity enable MotionMask */
|
|
PointerMotionMask |
|
|
KeyPressMask | KeyReleaseMask |
|
|
ButtonPressMask | ButtonReleaseMask |
|
|
PropertyChangeMask);
|
|
|
|
set_wm_protocols (stage_glx->xdpy, stage_glx->xwin);
|
|
|
|
if (stage_glx->gl_context)
|
|
glXDestroyContext (stage_glx->xdpy, stage_glx->gl_context);
|
|
|
|
CLUTTER_NOTE (GL, "Creating GL Context");
|
|
stage_glx->gl_context = glXCreateContext (stage_glx->xdpy,
|
|
stage_glx->xvisinfo,
|
|
0,
|
|
True);
|
|
|
|
if (stage_glx->gl_context == None)
|
|
{
|
|
g_critical ("Unable to create suitable GL context.");
|
|
|
|
CLUTTER_ACTOR_UNSET_FLAGS (actor, CLUTTER_ACTOR_REALIZED);
|
|
|
|
return;
|
|
}
|
|
|
|
CLUTTER_NOTE (GL, "glXMakeCurrent");
|
|
glXMakeCurrent (stage_glx->xdpy, stage_glx->xwin, stage_glx->gl_context);
|
|
}
|
|
else
|
|
{
|
|
int gl_attributes[] = {
|
|
GLX_RGBA,
|
|
GLX_RED_SIZE, 1,
|
|
GLX_GREEN_SIZE, 1,
|
|
GLX_BLUE_SIZE, 1,
|
|
0
|
|
};
|
|
|
|
if (stage_glx->xvisinfo)
|
|
XFree (stage_glx->xvisinfo);
|
|
|
|
CLUTTER_NOTE (GL, "glXChooseVisual");
|
|
stage_glx->xvisinfo = glXChooseVisual (stage_glx->xdpy,
|
|
stage_glx->xscreen,
|
|
gl_attributes);
|
|
if (!stage_glx->xvisinfo)
|
|
{
|
|
g_critical ("Unable to find suitable GL visual.");
|
|
|
|
CLUTTER_ACTOR_UNSET_FLAGS (actor, CLUTTER_ACTOR_REALIZED);
|
|
|
|
return;
|
|
}
|
|
|
|
if (stage_glx->gl_context)
|
|
glXDestroyContext (stage_glx->xdpy, stage_glx->gl_context);
|
|
|
|
stage_glx->xpixmap = XCreatePixmap (stage_glx->xdpy,
|
|
stage_glx->xwin_root,
|
|
stage_glx->xwin_width,
|
|
stage_glx->xwin_height,
|
|
stage_glx->xvisinfo->depth);
|
|
|
|
stage_glx->glxpixmap = glXCreateGLXPixmap (stage_glx->xdpy,
|
|
stage_glx->xvisinfo,
|
|
stage_glx->xpixmap);
|
|
|
|
/* indirect */
|
|
stage_glx->gl_context = glXCreateContext (stage_glx->xdpy,
|
|
stage_glx->xvisinfo,
|
|
0,
|
|
False);
|
|
|
|
glXMakeCurrent (stage_glx->xdpy,
|
|
stage_glx->glxpixmap,
|
|
stage_glx->gl_context);
|
|
|
|
#if 0
|
|
/* Debug code for monitoring a off screen pixmap via window */
|
|
{
|
|
Colormap cmap;
|
|
XSetWindowAttributes swa;
|
|
|
|
cmap = XCreateColormap(clutter_glx_display(),
|
|
clutter_glx_root_window(),
|
|
backend->xvisinfo->visual, AllocNone);
|
|
|
|
/* create a window */
|
|
swa.colormap = cmap;
|
|
|
|
foo_win = XCreateWindow(clutter_glx_display(),
|
|
clutter_glx_root_window(),
|
|
0, 0,
|
|
backend->xwin_width, backend->xwin_height,
|
|
0,
|
|
backend->xvisinfo->depth,
|
|
InputOutput,
|
|
backend->xvisinfo->visual,
|
|
CWColormap, &swa);
|
|
|
|
XMapWindow(clutter_glx_display(), foo_win);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
CLUTTER_NOTE (GL,
|
|
"\n"
|
|
"===========================================\n"
|
|
"GL_VENDOR: %s\n"
|
|
"GL_RENDERER: %s\n"
|
|
"GL_VERSION: %s\n"
|
|
"GL_EXTENSIONS: %s\n"
|
|
"Direct Rendering: %s\n"
|
|
"===========================================\n",
|
|
glGetString (GL_VENDOR),
|
|
glGetString (GL_RENDERER),
|
|
glGetString (GL_VERSION),
|
|
glGetString (GL_EXTENSIONS),
|
|
glXIsDirect (stage_glx->xdpy, stage_glx->gl_context) ? "yes"
|
|
: "no");
|
|
|
|
_clutter_stage_sync_viewport (CLUTTER_STAGE (stage_glx));
|
|
}
|
|
|
|
static void
|
|
clutter_stage_glx_paint (ClutterActor *self)
|
|
{
|
|
ClutterStageGlx *stage_glx = CLUTTER_STAGE_GLX (self);
|
|
ClutterStage *stage = CLUTTER_STAGE (self);
|
|
ClutterColor stage_color;
|
|
static GTimer *timer = NULL;
|
|
static guint timer_n_frames = 0;
|
|
|
|
CLUTTER_NOTE (PAINT, " Redraw enter");
|
|
|
|
/* Setup FPS count */
|
|
if (clutter_get_show_fps ())
|
|
{
|
|
if (!timer)
|
|
timer = g_timer_new ();
|
|
}
|
|
|
|
/* Reset view matrices if needed. */
|
|
if (CLUTTER_PRIVATE_FLAGS (self) & CLUTTER_ACTOR_SYNC_MATRICES)
|
|
{
|
|
/*
|
|
cogl_set_view_matrix (view_width,
|
|
view_height,
|
|
perspective)
|
|
|
|
*/
|
|
}
|
|
|
|
/* Setup the initial paint */
|
|
clutter_stage_get_color (stage, &stage_color);
|
|
cogl_paint_init (&stage_color);
|
|
|
|
/* chain up to reach ClutterGroup->paint here and actually paint all */
|
|
CLUTTER_ACTOR_CLASS (clutter_stage_glx_parent_class)->paint (self);
|
|
|
|
/* Why this paint is done in backend as likely GL windowing system
|
|
* specific calls, like swapping buffers.
|
|
*/
|
|
if (stage_glx->xwin)
|
|
{
|
|
clutter_backend_glx_wait_for_vblank (stage_glx->backend);
|
|
glXSwapBuffers (stage_glx->xdpy, stage_glx->xwin);
|
|
}
|
|
else
|
|
{
|
|
glXWaitGL ();
|
|
CLUTTER_GLERR ();
|
|
}
|
|
|
|
/* Complete FPS info */
|
|
if (clutter_get_show_fps ())
|
|
{
|
|
timer_n_frames++;
|
|
|
|
if (g_timer_elapsed (timer, NULL) >= 1.0)
|
|
{
|
|
g_print ("*** FPS: %i ***\n", timer_n_frames);
|
|
timer_n_frames = 0;
|
|
g_timer_start (timer);
|
|
}
|
|
}
|
|
|
|
CLUTTER_NOTE (PAINT, " Redraw leave");
|
|
}
|
|
|
|
static void
|
|
clutter_stage_glx_allocate_coords (ClutterActor *self,
|
|
ClutterActorBox *box)
|
|
{
|
|
ClutterStageGlx *stage_glx = CLUTTER_STAGE_GLX (self);
|
|
|
|
box->x1 = box->y1 = 0;
|
|
box->x2 = box->x1 + stage_glx->xwin_width;
|
|
box->y2 = box->y1 + stage_glx->xwin_height;
|
|
}
|
|
|
|
static void
|
|
clutter_stage_glx_request_coords (ClutterActor *self,
|
|
ClutterActorBox *box)
|
|
{
|
|
ClutterStageGlx *stage_glx = CLUTTER_STAGE_GLX (self);
|
|
gint new_width, new_height;
|
|
|
|
new_width = ABS (box->x2 - box->x1);
|
|
new_height = ABS (box->y2 - box->y1);
|
|
|
|
if (new_width != stage_glx->xwin_width ||
|
|
new_height != stage_glx->xwin_height)
|
|
{
|
|
stage_glx->xwin_width = new_width;
|
|
stage_glx->xwin_height = new_height;
|
|
|
|
if (stage_glx->xwin != None)
|
|
XResizeWindow (stage_glx->xdpy,
|
|
stage_glx->xwin,
|
|
stage_glx->xwin_width,
|
|
stage_glx->xwin_height);
|
|
|
|
if (stage_glx->xpixmap != None)
|
|
{
|
|
/* Need to recreate to resize */
|
|
clutter_actor_unrealize (self);
|
|
clutter_actor_realize (self);
|
|
}
|
|
|
|
_clutter_stage_sync_viewport (CLUTTER_STAGE (stage_glx));
|
|
}
|
|
|
|
if (stage_glx->xwin != None) /* Do we want to bother ? */
|
|
XMoveWindow (stage_glx->xdpy,
|
|
stage_glx->xwin,
|
|
box->x1,
|
|
box->y1);
|
|
}
|
|
|
|
static void
|
|
clutter_stage_glx_set_fullscreen (ClutterStage *stage,
|
|
gboolean fullscreen)
|
|
{
|
|
ClutterStageGlx *stage_glx = CLUTTER_STAGE_GLX (stage);
|
|
Atom atom_WM_STATE, atom_WM_STATE_FULLSCREEN;
|
|
|
|
atom_WM_STATE = XInternAtom (stage_glx->xdpy, "_NET_WM_STATE", False);
|
|
atom_WM_STATE_FULLSCREEN = XInternAtom (stage_glx->xdpy,
|
|
"_NET_WM_STATE_FULLSCREEN",
|
|
False);
|
|
|
|
if (fullscreen)
|
|
{
|
|
gint width, height;
|
|
|
|
width = DisplayWidth (stage_glx->xdpy, stage_glx->xscreen);
|
|
height = DisplayHeight (stage_glx->xdpy, stage_glx->xscreen);
|
|
|
|
clutter_actor_set_size (CLUTTER_ACTOR (stage_glx), width, height);
|
|
|
|
if (stage_glx->xwin != None)
|
|
XChangeProperty (stage_glx->xdpy,
|
|
stage_glx->xwin,
|
|
atom_WM_STATE, XA_ATOM, 32,
|
|
PropModeReplace,
|
|
(unsigned char *) &atom_WM_STATE_FULLSCREEN, 1);
|
|
}
|
|
else
|
|
{
|
|
if (stage_glx->xwin != None)
|
|
XDeleteProperty (stage_glx->xdpy, stage_glx->xwin, atom_WM_STATE);
|
|
}
|
|
|
|
_clutter_stage_sync_viewport (stage);
|
|
}
|
|
|
|
static void
|
|
clutter_stage_glx_set_cursor_visible (ClutterStage *stage,
|
|
gboolean show_cursor)
|
|
{
|
|
ClutterStageGlx *stage_glx = CLUTTER_STAGE_GLX (stage);
|
|
|
|
if (stage_glx->xwin == None)
|
|
return;
|
|
|
|
CLUTTER_NOTE (MISC, "setting cursor state ('%s') over stage window (%u)",
|
|
show_cursor ? "visible" : "invisible",
|
|
(unsigned int) stage_glx->xwin);
|
|
|
|
if (show_cursor)
|
|
{
|
|
#ifdef HAVE_XFIXES
|
|
XFixesShowCursor (stage_glx->xdpy, stage_glx->xwin);
|
|
#else
|
|
XUndefineCursor (stage_glx->xdpy, stage_glx->xwin);
|
|
#endif /* HAVE_XFIXES */
|
|
}
|
|
else
|
|
{
|
|
#ifdef HAVE_XFIXES
|
|
XFixesHideCursor (stage_glx->xdpy, stage_glx->xwin);
|
|
#else
|
|
XColor col;
|
|
Pixmap pix;
|
|
Cursor curs;
|
|
|
|
pix = XCreatePixmap (stage_glx->xdpy, stage_glx->xwin, 1, 1, 1);
|
|
memset (&col, 0, sizeof (col));
|
|
curs = XCreatePixmapCursor (stage_glx->xdpy,
|
|
pix, pix,
|
|
&col, &col,
|
|
1, 1);
|
|
XFreePixmap (stage_glx->xdpy, pix);
|
|
XDefineCursor (stage_glx->xdpy, stage_glx->xwin, curs);
|
|
#endif /* HAVE_XFIXES */
|
|
}
|
|
|
|
_clutter_stage_sync_viewport (stage);
|
|
}
|
|
|
|
static void
|
|
clutter_stage_glx_set_offscreen (ClutterStage *stage,
|
|
gboolean offscreen)
|
|
{
|
|
|
|
}
|
|
|
|
static void
|
|
snapshot_pixbuf_free (guchar *pixels,
|
|
gpointer data)
|
|
{
|
|
g_free (pixels);
|
|
}
|
|
|
|
static void
|
|
clutter_stage_glx_draw_to_pixbuf (ClutterStage *stage,
|
|
GdkPixbuf *dest,
|
|
gint x,
|
|
gint y,
|
|
gint width,
|
|
gint height)
|
|
{
|
|
guchar *data;
|
|
GdkPixbuf *pixb;
|
|
ClutterActor *actor;
|
|
ClutterStageGlx *stage_glx;
|
|
gboolean is_offscreen = FALSE;
|
|
|
|
stage_glx = CLUTTER_STAGE_GLX (stage);
|
|
actor = CLUTTER_ACTOR (stage);
|
|
|
|
if (width < 0)
|
|
width = clutter_actor_get_width (actor);
|
|
|
|
if (height < 0)
|
|
height = clutter_actor_get_height (actor);
|
|
|
|
g_object_get (stage, "offscreen", &is_offscreen, NULL);
|
|
|
|
if (G_UNLIKELY (is_offscreen))
|
|
{
|
|
gdk_pixbuf_xlib_init (stage_glx->xdpy, stage_glx->xscreen);
|
|
|
|
dest = gdk_pixbuf_xlib_get_from_drawable (NULL,
|
|
(Drawable) stage_glx->xpixmap,
|
|
DefaultColormap (stage_glx->xdpy,
|
|
stage_glx->xscreen),
|
|
stage_glx->xvisinfo->visual,
|
|
x, y,
|
|
0, 0,
|
|
width, height);
|
|
}
|
|
else
|
|
{
|
|
data = g_malloc0 (sizeof (guchar) * width * height * 4);
|
|
|
|
glReadPixels (x,
|
|
clutter_actor_get_height (actor) - y - height,
|
|
width,
|
|
height, GL_RGBA, GL_UNSIGNED_BYTE, data);
|
|
|
|
pixb = gdk_pixbuf_new_from_data (data,
|
|
GDK_COLORSPACE_RGB,
|
|
TRUE,
|
|
8,
|
|
width, height,
|
|
width * 4,
|
|
snapshot_pixbuf_free,
|
|
NULL);
|
|
|
|
dest = gdk_pixbuf_flip (pixb, TRUE);
|
|
|
|
g_object_unref (pixb);
|
|
}
|
|
}
|
|
|
|
static void
|
|
clutter_stage_glx_dispose (GObject *gobject)
|
|
{
|
|
ClutterStageGlx *stage_glx = CLUTTER_STAGE_GLX (gobject);
|
|
|
|
if (stage_glx->xwin)
|
|
clutter_actor_unrealize (CLUTTER_ACTOR (stage_glx));
|
|
|
|
G_OBJECT_CLASS (clutter_stage_glx_parent_class)->dispose (gobject);
|
|
}
|
|
|
|
static void
|
|
clutter_stage_glx_class_init (ClutterStageGlxClass *klass)
|
|
{
|
|
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
|
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
|
|
ClutterStageClass *stage_class = CLUTTER_STAGE_CLASS (klass);
|
|
|
|
gobject_class->dispose = clutter_stage_glx_dispose;
|
|
|
|
actor_class->show = clutter_stage_glx_show;
|
|
actor_class->hide = clutter_stage_glx_hide;
|
|
actor_class->realize = clutter_stage_glx_realize;
|
|
actor_class->unrealize = clutter_stage_glx_unrealize;
|
|
actor_class->paint = clutter_stage_glx_paint;
|
|
actor_class->request_coords = clutter_stage_glx_request_coords;
|
|
actor_class->allocate_coords = clutter_stage_glx_allocate_coords;
|
|
|
|
stage_class->set_fullscreen = clutter_stage_glx_set_fullscreen;
|
|
stage_class->set_cursor_visible = clutter_stage_glx_set_cursor_visible;
|
|
stage_class->set_offscreen = clutter_stage_glx_set_offscreen;
|
|
stage_class->draw_to_pixbuf = clutter_stage_glx_draw_to_pixbuf;
|
|
}
|
|
|
|
static void
|
|
clutter_stage_glx_init (ClutterStageGlx *stage)
|
|
{
|
|
stage->xdpy = NULL;
|
|
stage->xwin_root = None;
|
|
stage->xscreen = 0;
|
|
|
|
stage->xwin = None;
|
|
stage->xwin_width = 640;
|
|
stage->xwin_height = 480;
|
|
stage->xvisinfo = None;
|
|
|
|
stage->is_foreign_xwin = FALSE;
|
|
}
|
|
|
|
/**
|
|
* clutter_glx_get_stage_window:
|
|
* @stage: a #ClutterStage
|
|
*
|
|
* FIXME
|
|
*
|
|
* Return value: FIXME
|
|
*
|
|
* Since: 0.4
|
|
*/
|
|
Window
|
|
clutter_glx_get_stage_window (ClutterStage *stage)
|
|
{
|
|
g_return_val_if_fail (CLUTTER_IS_STAGE_GLX (stage), None);
|
|
|
|
return CLUTTER_STAGE_GLX (stage)->xwin;
|
|
}
|
|
|
|
/**
|
|
* clutter_glx_get_stage_visual:
|
|
* @stage: a #ClutterStage
|
|
*
|
|
* FIXME
|
|
*
|
|
* Return value: FIXME
|
|
*
|
|
* Since: 0.4
|
|
*/
|
|
XVisualInfo *
|
|
clutter_glx_get_stage_visual (ClutterStage *stage)
|
|
{
|
|
g_return_val_if_fail (CLUTTER_IS_STAGE_GLX (stage), NULL);
|
|
|
|
return CLUTTER_STAGE_GLX (stage)->xvisinfo;
|
|
}
|
|
|
|
/**
|
|
* clutter_glx_set_stage_foreign:
|
|
* @stage: a #ClutterStage
|
|
* @xwindow: an existing X Window id
|
|
*
|
|
* Target the #ClutterStage to use an existing external X Window
|
|
*
|
|
* Return value: %TRUE if foreign window is valid
|
|
*
|
|
* Since: 0.4
|
|
*/
|
|
gboolean
|
|
clutter_glx_set_stage_foreign (ClutterStage *stage,
|
|
Window xwindow)
|
|
{
|
|
ClutterStageGlx *stage_glx;
|
|
ClutterActor *actor;
|
|
gint x, y;
|
|
guint width, height, border, depth;
|
|
Window root_return;
|
|
Status status;
|
|
ClutterGeometry geom;
|
|
|
|
g_return_val_if_fail (CLUTTER_IS_STAGE_GLX (stage), FALSE);
|
|
g_return_val_if_fail (xwindow != None, FALSE);
|
|
|
|
stage_glx = CLUTTER_STAGE_GLX (stage);
|
|
actor = CLUTTER_ACTOR (stage);
|
|
|
|
clutter_glx_trap_x_errors ();
|
|
|
|
status = XGetGeometry (stage_glx->xdpy,
|
|
xwindow,
|
|
&root_return,
|
|
&x, &y,
|
|
&width, &height,
|
|
&border,
|
|
&depth);
|
|
|
|
if (clutter_glx_untrap_x_errors () ||
|
|
!status ||
|
|
width == 0 || height == 0 ||
|
|
depth != stage_glx->xvisinfo->depth)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
clutter_actor_unrealize (actor);
|
|
|
|
stage_glx->xwin = xwindow;
|
|
stage_glx->is_foreign_xwin = TRUE;
|
|
|
|
geom.x = x;
|
|
geom.y = y;
|
|
geom.width = stage_glx->xwin_width = width;
|
|
geom.height = stage_glx->xwin_height = height;
|
|
|
|
clutter_actor_set_geometry (actor, &geom);
|
|
clutter_actor_realize (actor);
|
|
|
|
return TRUE;
|
|
}
|