First shot at GTK+ video target for the OLPC laptops. Seriously incomplete, SDL-1.2-olpc
authorRyan C. Gordon <icculus@icculus.org>
Thu, 19 Apr 2007 07:12:30 +0000
branchSDL-1.2-olpc
changeset 4404 b8de86ee2ad6
parent 4403 6b794fb2060d
child 4414 2e253188dcd2
First shot at GTK+ video target for the OLPC laptops. Seriously incomplete,
but it's enough to get some bits to a window...
configure.in
include/SDL_config.h.in
src/video/SDL_sysvideo.h
src/video/SDL_video.c
src/video/gtk/SDL_gtkevents.c
src/video/gtk/SDL_gtkevents_c.h
src/video/gtk/SDL_gtkmouse.c
src/video/gtk/SDL_gtkmouse_c.h
src/video/gtk/SDL_gtkvideo.c
src/video/gtk/SDL_gtkvideo.h
--- a/configure.in	Thu Apr 19 07:10:05 2007 +0000
+++ b/configure.in	Thu Apr 19 07:12:30 2007 +0000
@@ -1347,6 +1347,35 @@
     fi
 }
 
+dnl Find the GTK+ includes
+CheckGTK()
+{
+    AC_ARG_ENABLE(video-gtk,
+AC_HELP_STRING([--enable-video-gtk], [use GTK+ video driver [[default=no]]]),
+                  , enable_video_gtk=no)
+    if test x$enable_video = xyes -a x$enable_video_gtk = xyes; then
+        AC_PATH_PROG(HAVEPKGCONFIG, pkg-config, $PATH)
+        if test -z "$HAVEPKGCONFIG"; then
+            AC_MSG_ERROR([*** pkg-config not found. Cannot probe for gtk+-2.0.])
+        else
+            AC_MSG_CHECKING(for GTK+ support)
+            video_gtk=no
+            $HAVEPKGCONFIG --exists gtk+-2.0
+            if test $? -eq 0 ; then
+                video_gtk=yes
+                have_video=yes
+                AC_DEFINE(SDL_VIDEO_DRIVER_GTK)
+                SOURCES="$SOURCES $srcdir/src/video/gtk/*.c"
+                GTK2_CFLAGS=`$HAVEPKGCONFIG --cflags libglade-2.0 gtk+-2.0`
+                GTK2_LIBS=`$HAVEPKGCONFIG --libs libglade-2.0 gtk+-2.0`
+                EXTRA_CFLAGS="$EXTRA_CFLAGS $GTK2_CFLAGS"
+                EXTRA_LDFLAGS="$EXTRA_LDFLAGS $GTK2_LIBS"
+            fi
+            AC_MSG_RESULT($video_gtk)
+        fi
+    fi
+}
+
 dnl Set up the QTopia video driver if enabled
 CheckQtopia()
 {
@@ -2161,6 +2190,7 @@
         CheckVGL
         CheckWscons
         CheckAAlib
+        CheckGTK
         CheckQtopia
         CheckPicoGUI
         CheckOpenGLX11
--- a/include/SDL_config.h.in	Thu Apr 19 07:10:05 2007 +0000
+++ b/include/SDL_config.h.in	Thu Apr 19 07:12:30 2007 +0000
@@ -258,6 +258,7 @@
 #undef SDL_VIDEO_DRIVER_GAPI
 #undef SDL_VIDEO_DRIVER_GEM
 #undef SDL_VIDEO_DRIVER_GGI
+#undef SDL_VIDEO_DRIVER_GTK
 #undef SDL_VIDEO_DRIVER_IPOD
 #undef SDL_VIDEO_DRIVER_NANOX
 #undef SDL_VIDEO_DRIVER_OS2FS
--- a/src/video/SDL_sysvideo.h	Thu Apr 19 07:10:05 2007 +0000
+++ b/src/video/SDL_sysvideo.h	Thu Apr 19 07:12:30 2007 +0000
@@ -401,6 +401,9 @@
 #if SDL_VIDEO_DRIVER_AALIB
 extern VideoBootStrap AALIB_bootstrap;
 #endif
+#if SDL_VIDEO_DRIVER_GTK
+extern VideoBootStrap GTKPLUS_bootstrap;
+#endif
 #if SDL_VIDEO_DRIVER_DUMMY
 extern VideoBootStrap DUMMY_bootstrap;
 #endif
--- a/src/video/SDL_video.c	Thu Apr 19 07:10:05 2007 +0000
+++ b/src/video/SDL_video.c	Thu Apr 19 07:12:30 2007 +0000
@@ -117,6 +117,9 @@
 #if SDL_VIDEO_DRIVER_AALIB
 	&AALIB_bootstrap,
 #endif
+#if SDL_VIDEO_DRIVER_GTK
+	&GTKPLUS_bootstrap,
+#endif
 #if SDL_VIDEO_DRIVER_DUMMY
 	&DUMMY_bootstrap,
 #endif
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/video/gtk/SDL_gtkevents.c	Thu Apr 19 07:12:30 2007 +0000
@@ -0,0 +1,413 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2006 Sam Lantinga
+
+    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 2.1 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+#include "SDL.h"
+#include "../../events/SDL_sysevents.h"
+#include "../../events/SDL_events_c.h"
+
+#include "SDL_gtkvideo.h"
+#include "SDL_gtkevents_c.h"
+
+#define DEBUG_GTKPLUS_EVENTS 0
+#if DEBUG_GTKPLUS_EVENTS
+#define DEBUG_GTKPLUS_SIGNAL() printf("GTK+: %s\n", __FUNCTION__)
+#else
+#define DEBUG_GTKPLUS_SIGNAL()
+#endif
+
+static gboolean
+signal_enter_notify(GtkWidget *w, GdkEventCrossing *evt, gpointer data)
+{
+    SET_THIS_POINTER(data);
+    DEBUG_GTKPLUS_SIGNAL();
+    if ( (evt->mode != GDK_CROSSING_GRAB) &&
+         (evt->mode != GDK_CROSSING_UNGRAB) ) {
+        if ( this->input_grab == SDL_GRAB_OFF ) {
+            SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS);
+        }
+        SDL_PrivateMouseMotion(0, 0, evt->x, evt->y);
+	}
+
+    return FALSE;  /* don't eat event, in case app connected a handler. */
+}
+
+
+static gboolean
+signal_leave_notify(GtkWidget *w, GdkEventCrossing *evt, gpointer data)
+{
+    SET_THIS_POINTER(data);
+    DEBUG_GTKPLUS_SIGNAL();
+    if ( (evt->mode != GDK_CROSSING_GRAB) &&
+         (evt->mode != GDK_CROSSING_UNGRAB) &&
+         (evt->detail != GDK_NOTIFY_INFERIOR) ) {
+        if ( this->input_grab == SDL_GRAB_OFF ) {
+            SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS);
+        } else {
+            SDL_PrivateMouseMotion(0, 0, evt->x, evt->y);
+        }
+    }
+    return FALSE;  /* don't eat event, in case app connected a handler. */
+}
+
+
+static gboolean
+signal_focus_in(GtkWidget *w, GdkEventFocus *evt, gpointer data)
+{
+    DEBUG_GTKPLUS_SIGNAL();
+    SDL_PrivateAppActive(1, SDL_APPINPUTFOCUS);
+    return FALSE;  /* don't eat event, in case app connected a handler. */
+}
+
+
+static gboolean
+signal_focus_out(GtkWidget *w, GdkEventFocus *evt, gpointer data)
+{
+    DEBUG_GTKPLUS_SIGNAL();
+    SDL_PrivateAppActive(0, SDL_APPINPUTFOCUS);
+    return FALSE;  /* don't eat event, in case app connected a handler. */
+}
+
+
+#if 0
+	    /* Generated upon EnterWindow and FocusIn */
+	    case KeymapNotify: {
+#ifdef DEBUG_XEVENTS
+printf("KeymapNotify!\n");
+#endif
+		X11_SetKeyboardState(SDL_Display,  xevent.xkeymap.key_vector);
+	    }
+	    break;
+#endif
+
+
+static gboolean
+signal_motion_notify(GtkWidget *w, GdkEventMotion *evt, gpointer data)
+{
+    SET_THIS_POINTER(data);
+    DEBUG_GTKPLUS_SIGNAL();
+    if ( SDL_VideoSurface ) {
+        if ( 0 /* !!! FIXME mouse_relative */ ) {
+            SDLGTK_WarpedMotion(this, evt);
+        } else {
+            SDL_PrivateMouseMotion(0, 0, evt->x, evt->y);
+        }
+    }
+
+    return FALSE;  /* don't eat event, in case app connected a handler. */
+}
+
+
+static gboolean
+signal_button_press(GtkWidget *w, GdkEventButton *evt, gpointer data)
+{
+    DEBUG_GTKPLUS_SIGNAL();
+    SDL_PrivateMouseButton(SDL_PRESSED, evt->button, 0, 0);
+    return FALSE;  /* don't eat event, in case app connected a handler. */
+}
+
+static gboolean
+signal_button_release(GtkWidget *w, GdkEventButton *evt, gpointer data)
+{
+    DEBUG_GTKPLUS_SIGNAL();
+    SDL_PrivateMouseButton(SDL_RELEASED, evt->button, 0, 0);
+    return FALSE;  /* don't eat event, in case app connected a handler. */
+}
+
+static gboolean
+signal_expose(GtkWidget *w, GdkEventExpose *evt, gpointer data)
+{
+    SET_THIS_POINTER(data);
+    const GdkRectangle *area = &evt->area;
+    SDL_Rect r = { area->x, area->y, area->width, area->height };
+    DEBUG_GTKPLUS_SIGNAL();
+    this->UpdateRects(this, 1, &r);
+    return FALSE;  /* don't eat event, in case app connected a handler. */
+}
+
+
+static gboolean
+signal_delete(GtkWidget *w, GdkEvent *evt, gpointer data)
+{
+    DEBUG_GTKPLUS_SIGNAL();
+    SDL_PrivateQuit();
+    return TRUE;  /* eat event: default handler destroys window! */
+}
+
+
+void GTKPLUS_ConnectSignals(_THIS)
+{
+    gtk_widget_set_events( this->hidden->gtkdrawingarea,
+                           GDK_EXPOSURE_MASK | GDK_POINTER_MOTION_MASK |
+                           GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
+                           GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK |
+                           GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
+
+    gtk_signal_connect(GTK_OBJECT(this->hidden->gtkwindow),
+                       "delete-event",
+                       GTK_SIGNAL_FUNC(signal_delete), this);
+    gtk_signal_connect(GTK_OBJECT(this->hidden->gtkdrawingarea),
+                       "enter-notify-event",
+                       GTK_SIGNAL_FUNC(signal_enter_notify), this);
+    gtk_signal_connect(GTK_OBJECT(this->hidden->gtkdrawingarea),
+                       "leave-notify-event",
+                       GTK_SIGNAL_FUNC(signal_leave_notify), this);
+    gtk_signal_connect(GTK_OBJECT(this->hidden->gtkwindow),
+                       "focus-in-event",
+                       GTK_SIGNAL_FUNC(signal_focus_in), this);
+    gtk_signal_connect(GTK_OBJECT(this->hidden->gtkwindow),
+                       "focus-out-event",
+                       GTK_SIGNAL_FUNC(signal_focus_out), this);
+    gtk_signal_connect(GTK_OBJECT(this->hidden->gtkdrawingarea),
+                       "motion-notify-event",
+                       GTK_SIGNAL_FUNC(signal_motion_notify), this);
+    gtk_signal_connect(GTK_OBJECT(this->hidden->gtkdrawingarea),
+                       "button-press-event",
+                       GTK_SIGNAL_FUNC(signal_button_press), this);
+    gtk_signal_connect(GTK_OBJECT(this->hidden->gtkdrawingarea),
+                       "button-release-event",
+                       GTK_SIGNAL_FUNC(signal_button_release), this);
+    gtk_signal_connect(GTK_OBJECT(this->hidden->gtkdrawingarea),
+                       "expose-event", GTK_SIGNAL_FUNC(signal_expose), this);
+    /* !!! FIXME: more to connect here. */
+}
+
+
+
+/* !!! FIXME: more to connect here. */
+#if 0
+	    /* Key press? */
+	    case KeyPress: {
+		static SDL_keysym saved_keysym;
+		SDL_keysym keysym;
+		KeyCode keycode = xevent.xkey.keycode;
+
+#ifdef DEBUG_XEVENTS
+printf("KeyPress (X11 keycode = 0x%X)\n", xevent.xkey.keycode);
+#endif
+		/* Get the translated SDL virtual keysym */
+		if ( keycode ) {
+			keysym.scancode = keycode;
+			keysym.sym = X11_TranslateKeycode(SDL_Display, keycode);
+			keysym.mod = KMOD_NONE;
+			keysym.unicode = 0;
+		} else {
+			keysym = saved_keysym;
+		}
+
+		/* If we're not doing translation, we're done! */
+		if ( !SDL_TranslateUNICODE ) {
+			posted = SDL_PrivateKeyboard(SDL_PRESSED, &keysym);
+			break;
+		}
+
+		if ( XFilterEvent(&xevent, None) ) {
+			if ( xevent.xkey.keycode ) {
+				posted = SDL_PrivateKeyboard(SDL_PRESSED, &keysym);
+			} else {
+				/* Save event to be associated with IM text
+				   In 1.3 we'll have a text event instead.. */
+				saved_keysym = keysym;
+			}
+			break;
+		}
+
+		/* Look up the translated value for the key event */
+#ifdef X_HAVE_UTF8_STRING
+		if ( SDL_IC != NULL ) {
+			static Status state;
+			/* A UTF-8 character can be at most 6 bytes */
+			char keybuf[6];
+			if ( Xutf8LookupString(SDL_IC, &xevent.xkey,
+			                        keybuf, sizeof(keybuf),
+			                        NULL, &state) ) {
+				keysym.unicode = Utf8ToUcs4((Uint8*)keybuf);
+			}
+		}
+		else
+#endif
+		{
+			static XComposeStatus state;
+			char keybuf[32];
+
+			if ( XLookupString(&xevent.xkey,
+			                    keybuf, sizeof(keybuf),
+			                    NULL, &state) ) {
+				/*
+				* FIXME: XLookupString() may yield more than one
+				* character, so we need a mechanism to allow for
+				* this (perhaps null keypress events with a
+				* unicode value)
+				*/
+				keysym.unicode = (Uint8)keybuf[0];
+			}
+		}
+		posted = SDL_PrivateKeyboard(SDL_PRESSED, &keysym);
+	    }
+	    break;
+
+	    /* Key release? */
+	    case KeyRelease: {
+		SDL_keysym keysym;
+		KeyCode keycode = xevent.xkey.keycode;
+
+#ifdef DEBUG_XEVENTS
+printf("KeyRelease (X11 keycode = 0x%X)\n", xevent.xkey.keycode);
+#endif
+		/* Check to see if this is a repeated key */
+		if ( X11_KeyRepeat(SDL_Display, &xevent) ) {
+			break;
+		}
+
+		/* Get the translated SDL virtual keysym */
+		keysym.scancode = keycode;
+		keysym.sym = X11_TranslateKeycode(SDL_Display, keycode);
+		keysym.mod = KMOD_NONE;
+		keysym.unicode = 0;
+
+		posted = SDL_PrivateKeyboard(SDL_RELEASED, &keysym);
+	    }
+	    break;
+
+	    /* Have we been iconified? */
+	    case UnmapNotify: {
+#ifdef DEBUG_XEVENTS
+printf("UnmapNotify!\n");
+#endif
+		/* If we're active, make ourselves inactive */
+		if ( SDL_GetAppState() & SDL_APPACTIVE ) {
+			/* Swap out the gamma before we go inactive */
+			X11_SwapVidModeGamma(this);
+
+			/* Send an internal deactivate event */
+			posted = SDL_PrivateAppActive(0,
+					SDL_APPACTIVE|SDL_APPINPUTFOCUS);
+		}
+	    }
+	    break;
+
+	    /* Have we been restored? */
+	    case MapNotify: {
+#ifdef DEBUG_XEVENTS
+printf("MapNotify!\n");
+#endif
+		/* If we're not active, make ourselves active */
+		if ( !(SDL_GetAppState() & SDL_APPACTIVE) ) {
+			/* Send an internal activate event */
+			posted = SDL_PrivateAppActive(1, SDL_APPACTIVE);
+
+			/* Now that we're active, swap the gamma back */
+			X11_SwapVidModeGamma(this);
+		}
+
+		if ( SDL_VideoSurface &&
+		     (SDL_VideoSurface->flags & SDL_FULLSCREEN) ) {
+			X11_EnterFullScreen(this);
+		} else {
+			X11_GrabInputNoLock(this, this->input_grab);
+		}
+		X11_CheckMouseModeNoLock(this);
+
+		if ( SDL_VideoSurface ) {
+			X11_RefreshDisplay(this);
+		}
+	    }
+	    break;
+
+	    /* Have we been resized or moved? */
+	    case ConfigureNotify: {
+#ifdef DEBUG_XEVENTS
+printf("ConfigureNotify! (resize: %dx%d)\n", xevent.xconfigure.width, xevent.xconfigure.height);
+#endif
+		if ( SDL_VideoSurface ) {
+		    if ((xevent.xconfigure.width != SDL_VideoSurface->w) ||
+		        (xevent.xconfigure.height != SDL_VideoSurface->h)) {
+			/* FIXME: Find a better fix for the bug with KDE 1.2 */
+			if ( ! ((xevent.xconfigure.width == 32) &&
+			        (xevent.xconfigure.height == 32)) ) {
+				SDL_PrivateResize(xevent.xconfigure.width,
+				                  xevent.xconfigure.height);
+			}
+		    } else {
+			/* OpenGL windows need to know about the change */
+			if ( SDL_VideoSurface->flags & SDL_OPENGL ) {
+				SDL_PrivateExpose();
+			}
+		    }
+		}
+	    }
+	    break;
+
+	    /* Have we been requested to quit (or another client message?) */
+	    case ClientMessage: {
+		if ( (xevent.xclient.format == 32) &&
+		     (xevent.xclient.data.l[0] == WM_DELETE_WINDOW) )
+		{
+			posted = SDL_PrivateQuit();
+		} else
+		if ( SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE ) {
+			SDL_SysWMmsg wmmsg;
+
+			SDL_VERSION(&wmmsg.version);
+			wmmsg.subsystem = SDL_SYSWM_X11;
+			wmmsg.event.xevent = xevent;
+			posted = SDL_PrivateSysWMEvent(&wmmsg);
+		}
+	    }
+	    break;
+
+
+
+	    default: {
+#ifdef DEBUG_XEVENTS
+printf("Unhandled event %d\n", xevent.type);
+#endif
+		/* Only post the event if we're watching for it */
+		if ( SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE ) {
+			SDL_SysWMmsg wmmsg;
+
+			SDL_VERSION(&wmmsg.version);
+			wmmsg.subsystem = SDL_SYSWM_X11;
+			wmmsg.event.xevent = xevent;
+			posted = SDL_PrivateSysWMEvent(&wmmsg);
+		}
+	    }
+	    break;
+	}
+#endif
+
+
+
+void GTKPLUS_PumpEvents(_THIS)
+{
+    while (gtk_events_pending())
+	    gtk_main_iteration();
+}
+
+void GTKPLUS_InitOSKeymap(_THIS)
+{
+    /* !!! FIXME */
+	/* do nothing. */
+}
+
+/* end of SDL_gtkevents.c ... */
+
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/video/gtk/SDL_gtkevents_c.h	Thu Apr 19 07:12:30 2007 +0000
@@ -0,0 +1,34 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2006 Sam Lantinga
+
+    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 2.1 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+#include "SDL_gtkvideo.h"
+
+/* Variables and functions exported by SDL_sysevents.c to other parts 
+   of the native video subsystem (SDL_sysvideo.c)
+*/
+extern void GTKPLUS_InitOSKeymap(_THIS);
+extern void GTKPLUS_PumpEvents(_THIS);
+extern void GTKPLUS_ConnectSignals(_THIS);
+
+/* end of SDL_gtkevents_c.h ... */
+
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/video/gtk/SDL_gtkmouse.c	Thu Apr 19 07:12:30 2007 +0000
@@ -0,0 +1,33 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2006 Sam Lantinga
+
+    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 2.1 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+#include "SDL_mouse.h"
+#include "../../events/SDL_events_c.h"
+
+#include "SDL_gtkmouse_c.h"
+
+
+/* The implementation dependent data for the window manager cursor */
+struct WMcursor {
+	int unused;
+};
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/video/gtk/SDL_gtkmouse_c.h	Thu Apr 19 07:12:30 2007 +0000
@@ -0,0 +1,26 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2006 Sam Lantinga
+
+    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 2.1 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+#include "SDL_gtkvideo.h"
+
+/* Functions to be exported */
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/video/gtk/SDL_gtkvideo.c	Thu Apr 19 07:12:30 2007 +0000
@@ -0,0 +1,643 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2006 Sam Lantinga
+
+    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 2.1 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+/*
+ * GTK+ SDL video driver implementation; this is a little like a pared-down
+ *  version of the X11 driver. You almost certainly do NOT want this target
+ *  on a desktop machine. This was written for the One Laptop Per Child
+ *  project so they wouldn't need to use the SDL_WINDOWID hack with the X11
+ *  driver and compete for the event queue.
+ *
+ * Initial work by Ryan C. Gordon (icculus@icculus.org). A good portion
+ *  of this was cut-and-pasted from the dummy video target just to have a
+ *  starting point for the bare minimum to fill in, and some was lifted from
+ *  the x11 target.
+ */
+
+#include "SDL_video.h"
+#include "SDL_mouse.h"
+#include "../SDL_sysvideo.h"
+#include "../SDL_pixels_c.h"
+#include "../../events/SDL_events_c.h"
+
+#include "SDL_gtkvideo.h"
+#include "SDL_gtkevents_c.h"
+#include "SDL_gtkmouse_c.h"
+
+#define GTKPLUSVID_DRIVER_NAME "gtk"
+
+/* Initialization/Query functions */
+static int GTKPLUS_VideoInit(_THIS, SDL_PixelFormat *vformat);
+static SDL_Rect **GTKPLUS_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags);
+static SDL_Surface *GTKPLUS_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
+static int GTKPLUS_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors);
+static void GTKPLUS_VideoQuit(_THIS);
+
+/* Hardware surface functions */
+static int GTKPLUS_AllocHWSurface(_THIS, SDL_Surface *surface);
+static int GTKPLUS_LockHWSurface(_THIS, SDL_Surface *surface);
+static void GTKPLUS_UnlockHWSurface(_THIS, SDL_Surface *surface);
+static void GTKPLUS_FreeHWSurface(_THIS, SDL_Surface *surface);
+static void GTKPLUS_SetCaption(_THIS, const char *title, const char *icon);
+
+/* etc. */
+static void GTKPLUS_UpdateRects(_THIS, int numrects, SDL_Rect *rects);
+
+/* GTKPLUS driver bootstrap functions */
+
+static int do_gtk_init(void)
+{
+    static int initted = 0;
+    if (!initted) {   /* !!! FIXME: I can't see a way to deinit gtk... */
+        int tmpargc = 0;
+        char *args[] = { NULL, NULL };
+        char **tmpargv = args;
+        initted = (gtk_init_check(&tmpargc, &tmpargv));
+    }
+    return initted;
+}
+
+
+static int GTKPLUS_Available(void)
+{
+    return 1;  /* !!! FIXME */
+}
+
+static void GTKPLUS_DeleteDevice(SDL_VideoDevice *device)
+{
+	SDL_free(device->hidden);
+	SDL_free(device);
+}
+
+static SDL_VideoDevice *GTKPLUS_CreateDevice(int devindex)
+{
+	SDL_VideoDevice *device;
+
+	/* Initialize all variables that we clean on shutdown */
+	device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice));
+	if ( device ) {
+		SDL_memset(device, 0, (sizeof *device));
+		device->hidden = (struct SDL_PrivateVideoData *)
+				SDL_malloc((sizeof *device->hidden));
+	}
+	if ( (device == NULL) || (device->hidden == NULL) ) {
+		SDL_OutOfMemory();
+		if ( device ) {
+			SDL_free(device);
+		}
+		return(0);
+	}
+	SDL_memset(device->hidden, 0, (sizeof *device->hidden));
+
+    device->handles_any_size = 1;
+
+	/* Set the function pointers */
+	device->VideoInit = GTKPLUS_VideoInit;
+	device->ListModes = GTKPLUS_ListModes;
+	device->SetVideoMode = GTKPLUS_SetVideoMode;
+	device->CreateYUVOverlay = NULL;
+	device->SetColors = GTKPLUS_SetColors;
+	device->UpdateRects = GTKPLUS_UpdateRects;
+	device->VideoQuit = GTKPLUS_VideoQuit;
+	device->AllocHWSurface = GTKPLUS_AllocHWSurface;
+	device->CheckHWBlit = NULL;
+	device->FillHWRect = NULL;
+	device->SetHWColorKey = NULL;
+	device->SetHWAlpha = NULL;
+	device->LockHWSurface = GTKPLUS_LockHWSurface;
+	device->UnlockHWSurface = GTKPLUS_UnlockHWSurface;
+	device->FlipHWSurface = NULL;
+	device->FreeHWSurface = GTKPLUS_FreeHWSurface;
+	device->SetCaption = GTKPLUS_SetCaption;
+	device->SetIcon = NULL;
+	device->IconifyWindow = NULL;
+	device->GrabInput = NULL;
+	device->GetWMInfo = NULL;
+	device->InitOSKeymap = GTKPLUS_InitOSKeymap;
+	device->PumpEvents = GTKPLUS_PumpEvents;
+
+	device->free = GTKPLUS_DeleteDevice;
+
+	return device;
+}
+
+VideoBootStrap GTKPLUS_bootstrap = {
+	GTKPLUSVID_DRIVER_NAME, "SDL GTK+ video driver",
+	GTKPLUS_Available, GTKPLUS_CreateDevice
+};
+
+
+static int add_visual(_THIS, int depth, GdkVisualType vistype)
+{
+    GdkVisual *vi = gdk_visual_get_best_with_both(depth, vistype);
+    if(vi != NULL) {
+        g_object_ref(vi);
+        this->hidden->visuals[this->hidden->nvisuals++] = vi;
+    }
+    return(this->hidden->nvisuals);
+}
+
+static int GTKPLUS_GetVideoModes(_THIS)
+{
+    const gint screen_w = gdk_screen_width();
+    const gint screen_h = gdk_screen_height();
+    int i, n;
+
+    {
+	/* It's interesting to note that if we allow 32 bit depths (on X11),
+	   we get a visual with an alpha mask on composite servers.
+        static int depth_list[] = { 32, 24, 16, 15, 8 };
+	*/
+        static int depth_list[] = { 24, 16, 15, 8 };
+        int use_directcolor = 1;
+
+        /* Search for the visuals in deepest-first order, so that the first
+           will be the richest one */
+        if ( SDL_getenv("SDL_VIDEO_GTK_NODIRECTCOLOR") ) {
+                use_directcolor = 0;
+        }
+        this->hidden->nvisuals = 0;
+        for ( i=0; i<SDL_arraysize(depth_list); ++i ) {
+            if ( depth_list[i] > 8 ) {
+                if ( use_directcolor ) {
+                    add_visual(this, depth_list[i], GDK_VISUAL_DIRECT_COLOR);
+                }
+                add_visual(this, depth_list[i], GDK_VISUAL_TRUE_COLOR);
+            } else {
+                add_visual(this, depth_list[i], GDK_VISUAL_PSEUDO_COLOR);
+                add_visual(this, depth_list[i], GDK_VISUAL_STATIC_COLOR);
+            }
+        }
+        if ( this->hidden->nvisuals == 0 ) {
+            SDL_SetError("Found no sufficiently capable GTK+ visuals");
+            return -1;
+        }
+    }
+
+    return 0;
+}
+
+
+int GTKPLUS_VideoInit(_THIS, SDL_PixelFormat *vformat)
+{
+    GdkVisual *sysvis = NULL;
+    int i;
+
+    if (!do_gtk_init()) {
+        return -1;
+    }
+
+	/* Get the available video modes */
+	if(GTKPLUS_GetVideoModes(this) < 0)
+	    return -1;
+
+	/* Determine the current screen size */
+	this->info.current_w = gdk_screen_width();
+	this->info.current_h = gdk_screen_height();
+
+	/* Determine the default screen depth:
+	   Use the default visual (or at least one with the same depth) */
+	this->hidden->display_colormap = gdk_colormap_get_system();  /* !!! FIXME: refcount? */
+    sysvis = gdk_visual_get_system();  /* !!! FIXME: refcount? */
+
+    for(i = 0; i < this->hidden->nvisuals; i++) {
+        if(this->hidden->visuals[i]->depth == sysvis->depth)
+            break;
+    }
+
+	if(i == this->hidden->nvisuals) {
+	    /* default visual was useless, take the deepest one instead */
+	    i = 0;
+	}
+
+	this->hidden->visual = this->hidden->visuals[i];
+	if ( this->hidden->visual == sysvis ) {  /* !!! FIXME: same pointer? */
+	    this->hidden->colormap = this->hidden->display_colormap;
+        g_object_ref(this->hidden->colormap);
+	} else {
+	    this->hidden->colormap = gdk_colormap_new(this->hidden->visual, FALSE);
+	}
+
+    // !!! FIXME: this is not a public GDK symbol!!
+	vformat->BitsPerPixel = _gdk_windowing_get_bits_for_depth(
+                                gdk_display_get_default(),
+                                this->hidden->visuals[i]->depth);
+	this->hidden->depth = vformat->BitsPerPixel;
+
+	if ( vformat->BitsPerPixel > 8 ) {
+		vformat->Rmask = this->hidden->visual->red_mask;
+	  	vformat->Gmask = this->hidden->visual->green_mask;
+	  	vformat->Bmask = this->hidden->visual->blue_mask;
+	}
+	if ( this->hidden->depth == 32 ) {
+		vformat->Amask = (0xFFFFFFFF & ~(vformat->Rmask|vformat->Gmask|vformat->Bmask));
+	}
+
+#if 0
+	/* Create the fullscreen and managed windows */
+	create_aux_windows(this);
+
+	/* Create the blank cursor */
+	SDL_BlankCursor = this->CreateWMCursor(this, blank_cdata, blank_cmask,
+					BLANK_CWIDTH, BLANK_CHEIGHT,
+						BLANK_CHOTX, BLANK_CHOTY);
+
+	/* Allow environment override of screensaver disable. */
+	env = SDL_getenv("SDL_VIDEO_ALLOW_SCREENSAVER");
+	this->hidden->allow_screensaver = ( (env && SDL_atoi(env)) ? 1 : 0 );
+#endif
+
+	/* We're done! */
+	gdk_flush();  /* just in case. */
+
+	/* Fill in some window manager capabilities */
+	this->info.wm_available = 1;
+
+	return(0);
+}
+
+
+static GdkVisual *find_visual(_THIS, int bpp)
+{
+    GdkDisplay *display = gdk_display_get_default();
+    int i;
+    for ( i = 0; i < this->hidden->nvisuals; i++ ) {
+        const int videpth = this->hidden->visuals[i]->depth;
+        // !!! FIXME: this is not a public GDK symbol!!
+        const int depth = _gdk_windowing_get_bits_for_depth(display, videpth);
+        if ( depth == bpp )
+            break;
+    }
+
+    if ( i == this->hidden->nvisuals ) {
+        SDL_SetError("No matching visual for requested depth");
+        return NULL;  /* should never happen */
+    }
+    return this->hidden->visuals[i];
+}
+
+
+SDL_Rect **GTKPLUS_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
+{
+    if ((flags & SDL_OPENGL) == 0) {
+        if (find_visual(this, format->BitsPerPixel) != NULL) {
+       	    return (SDL_Rect **) -1;  /* !!! FIXME: maybe not right. */
+        }
+    }
+    return NULL;  /* unsupported. */
+}
+
+
+SDL_Surface *GTKPLUS_SetVideoMode(_THIS, SDL_Surface *current,
+				int width, int height, int bpp, Uint32 flags)
+{
+    Uint32 Amask = 0;
+    int vis_change = 0;
+    GtkWindow *win = NULL;
+    GdkImage *img = NULL;
+    GdkVisual *sysvis = gdk_visual_get_system();  /* !!! FIXME: refcount? */
+    GdkVisual *vis = find_visual(this, bpp);
+    if (vis == NULL) {
+		return(NULL);
+	}
+
+    if (flags & SDL_OPENGL) {
+		SDL_SetError("No OpenGL support in the GTK+ target");
+		return(NULL);
+	}
+
+    /* These are the only flags we allow here... */
+    flags &= /*SDL_FULLSCREEN |*/ SDL_RESIZABLE | SDL_NOFRAME | SDL_HWPALETTE;
+
+	vis_change = (vis != this->hidden->visual);
+	this->hidden->visual = vis;
+	this->hidden->depth = vis->depth;
+
+	/* Allocate the new pixel format for this video mode */
+	if ( this->hidden->depth == 32 ) {
+		Amask = (0xFFFFFFFF & ~(vis->red_mask|vis->green_mask|vis->blue_mask));
+	} else {
+		Amask = 0;
+	}
+	if ( ! SDL_ReallocFormat(current, bpp,
+			vis->red_mask, vis->green_mask, vis->blue_mask, Amask) ) {
+		return NULL;
+	}
+
+	/* Create the appropriate colormap */
+	g_object_unref(this->hidden->colormap);
+    this->hidden->colormap = NULL;
+
+	if ( this->hidden->visual->type == GDK_VISUAL_PSEUDO_COLOR ) {
+	    int ncolors;
+
+	    /* Allocate the pixel flags */
+	    ncolors = this->hidden->visual->colormap_size;
+
+	    #if 0
+        SDL_XPixels = SDL_malloc(ncolors * sizeof(int));
+	    if(SDL_XPixels == NULL) {
+            SDL_OutOfMemory();
+            return -1;
+	    }
+	    SDL_memset(SDL_XPixels, 0, ncolors * sizeof(*SDL_XPixels));
+        #endif
+
+	    /* always allocate a private colormap on non-default visuals */
+	    if ( this->hidden->visual != sysvis ) {
+            flags |= SDL_HWPALETTE;
+	    }
+	    if ( flags & SDL_HWPALETTE ) {
+            current->flags |= SDL_HWPALETTE;
+            this->hidden->colormap = gdk_colormap_new(this->hidden->visual, TRUE);
+	    } else {
+            this->hidden->colormap = this->hidden->display_colormap;
+            g_object_ref(this->hidden->colormap);
+	    }
+	} else if ( this->hidden->visual->type == GDK_VISUAL_DIRECT_COLOR ) {
+
+	    /* Create a colormap which we can manipulate for gamma */
+        this->hidden->colormap = gdk_colormap_new(this->hidden->visual, TRUE);
+        gdk_flush();
+
+	    /* Initialize the colormap to the identity mapping */
+	    SDL_GetGammaRamp(0, 0, 0);
+	    this->screen = current;
+#if 0 // !!! FIXME
+	    GTKPLUS_SetGammaRamp(this, this->gamma);
+#endif
+	    this->screen = NULL;
+	} else {
+	    /* Create a read-only colormap for our window */
+        this->hidden->colormap = gdk_colormap_new(this->hidden->visual, FALSE);
+	}
+
+#if 0  // !!! FIXME
+	/* Recreate the auxiliary windows, if needed (required for GL) */
+	if ( vis_change )
+	    create_aux_windows(this);
+
+	if(current->flags & SDL_HWPALETTE) {
+	    /* Since the full-screen window might have got a nonzero background
+	       colour (0 is white on some displays), we should reset the
+	       background to 0 here since that is what the user expects
+	       with a private colormap */
+	    XSetWindowBackground(SDL_Display, FSwindow, 0);
+	    XClearWindow(SDL_Display, FSwindow);
+	}
+
+	/* resize the (possibly new) window manager window */
+	if( !SDL_windowid ) {
+	        X11_SetSizeHints(this, w, h, flags);
+		window_w = w;
+		window_h = h;
+		XResizeWindow(SDL_Display, WMwindow, w, h);
+	}
+#endif
+
+    if ( this->hidden->gdkimage ) {
+        g_object_unref(this->hidden->gdkimage);
+        this->hidden->gdkimage = NULL;
+    }
+
+    img = this->hidden->gdkimage = gdk_image_new(GDK_IMAGE_FASTEST,
+                                           vis, width, height);
+    if (img == NULL) {
+		SDL_SetError("Couldn't allocate buffer for requested mode");
+		return(NULL);
+	}
+    gdk_image_set_colormap(this->hidden->gdkimage, this->hidden->colormap);
+
+	SDL_memset(img->mem, 0, height * img->bpl);
+
+    if ( this->hidden->gtkwindow == NULL ) {
+        this->hidden->gtkdrawingarea = gtk_drawing_area_new();
+        if ( this->hidden->gtkdrawingarea == NULL ) {
+		    SDL_SetError("Couldn't create drawing area for requested mode");
+            g_object_unref(this->hidden->gdkimage);
+            this->hidden->gdkimage = NULL;
+		    return(NULL);
+	    }
+
+        this->hidden->gtkwindow = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+        if ( this->hidden->gtkwindow == NULL ) {
+		    SDL_SetError("Couldn't create window for requested mode");
+            g_object_unref(this->hidden->gdkimage);
+            g_object_unref(this->hidden->gtkdrawingarea);
+            this->hidden->gdkimage = NULL;
+            this->hidden->gtkdrawingarea = NULL;
+		    return(NULL);
+	    }
+
+        gtk_window_set_title(GTK_WINDOW(this->hidden->gtkwindow), "");
+        gtk_widget_set_app_paintable(this->hidden->gtkwindow, TRUE);
+        gtk_widget_set_app_paintable(this->hidden->gtkdrawingarea, TRUE);
+        gtk_widget_set_double_buffered(this->hidden->gtkwindow, FALSE);
+        gtk_widget_set_double_buffered(this->hidden->gtkdrawingarea, FALSE);
+
+        GTKPLUS_ConnectSignals(this);
+
+        gtk_container_add(GTK_CONTAINER(this->hidden->gtkwindow),
+                          this->hidden->gtkdrawingarea);
+    }
+
+    win = GTK_WINDOW(this->hidden->gtkwindow);
+    gtk_widget_set_colormap(this->hidden->gtkdrawingarea, this->hidden->colormap);
+
+// !!! FIXME
+#if 0
+	/* Cache the window in the server, when possible */
+	{
+		Screen *xscreen;
+		XSetWindowAttributes a;
+
+		xscreen = ScreenOfDisplay(SDL_Display, SDL_Screen);
+		a.backing_store = DoesBackingStore(xscreen);
+		if ( a.backing_store != NotUseful ) {
+			XChangeWindowAttributes(SDL_Display, SDL_Window,
+			                        CWBackingStore, &a);
+		}
+	}
+
+	/* Update the internal keyboard state */
+	X11_SetKeyboardState(SDL_Display, NULL);
+
+	/* When the window is first mapped, ignore non-modifier keys */
+	{
+		Uint8 *keys = SDL_GetKeyState(NULL);
+		for ( i = 0; i < SDLK_LAST; ++i ) {
+			switch (i) {
+			    case SDLK_NUMLOCK:
+			    case SDLK_CAPSLOCK:
+			    case SDLK_LCTRL:
+			    case SDLK_RCTRL:
+			    case SDLK_LSHIFT:
+			    case SDLK_RSHIFT:
+			    case SDLK_LALT:
+			    case SDLK_RALT:
+			    case SDLK_LMETA:
+			    case SDLK_RMETA:
+			    case SDLK_MODE:
+				break;
+			    default:
+				keys[i] = SDL_RELEASED;
+				break;
+			}
+		}
+	}
+
+	/* Map them both and go fullscreen, if requested */
+	if ( ! SDL_windowid ) {
+		XMapWindow(SDL_Display, SDL_Window);
+		XMapWindow(SDL_Display, WMwindow);
+		X11_WaitMapped(this, WMwindow);
+		if ( flags & SDL_FULLSCREEN ) {
+			current->flags |= SDL_FULLSCREEN;
+			X11_EnterFullScreen(this);
+		} else {
+			current->flags &= ~SDL_FULLSCREEN;
+		}
+	}
+#endif
+
+    if ((flags & SDL_FULLSCREEN) == 0) {
+        gtk_window_unfullscreen(win);
+    } else {
+        gtk_window_fullscreen(win);
+        flags &= ~SDL_RESIZABLE;
+        flags |= SDL_NOFRAME;
+    }
+
+    gtk_window_set_resizable(win, (flags & SDL_RESIZABLE) ? TRUE : FALSE);
+    gtk_window_set_decorated(win, (flags & SDL_NOFRAME) ? FALSE : TRUE);
+    gtk_window_resize(win, width, height);
+    gtk_widget_set_size_request(this->hidden->gtkdrawingarea, width, height);
+    gtk_widget_show(this->hidden->gtkdrawingarea);
+    gtk_widget_show(this->hidden->gtkwindow);
+
+	/* Set up the new mode framebuffer */
+	current->w = width;
+	current->h = height;
+    //current->format->depth = vis->bits_per_rgb;
+	current->flags = flags | SDL_PREALLOC;
+	current->pitch = img->bpl;
+	current->pixels = this->hidden->gdkimage->mem;
+
+	/* We're done */
+	return(current);
+}
+
+static void GTKPLUS_SetCaption(_THIS, const char *title, const char *icon)
+{
+    gtk_window_set_title(GTK_WINDOW(this->hidden->gtkwindow),
+                         (const gchar *) title);
+}
+
+/* We don't actually allow hardware surfaces. */
+static int GTKPLUS_AllocHWSurface(_THIS, SDL_Surface *surface)
+{
+	return(-1);
+}
+
+static void GTKPLUS_FreeHWSurface(_THIS, SDL_Surface *surface)
+{
+}
+
+/* We need to wait for vertical retrace on page flipped displays */
+static int GTKPLUS_LockHWSurface(_THIS, SDL_Surface *surface)
+{
+	return(0);
+}
+
+static void GTKPLUS_UnlockHWSurface(_THIS, SDL_Surface *surface)
+{
+}
+
+static void GTKPLUS_UpdateRects(_THIS, int numrects, SDL_Rect *rects)
+{
+    if ( (this->hidden->gtkdrawingarea != NULL) &&
+         (GTK_WIDGET_DRAWABLE(this->hidden->gtkdrawingarea)) &&
+         (numrects > 0) ) {
+        GdkDrawable *draw = GDK_DRAWABLE(this->hidden->gtkdrawingarea->window);
+        if (this->hidden->gc == NULL) {
+		    this->hidden->gc = gdk_gc_new(draw);
+        }
+
+        if (this->hidden->gc != NULL) {
+            GdkImage *img = this->hidden->gdkimage;
+            const SDL_Rect *r = rects;
+            int i;
+            for (i = 0; i < numrects; i++, r++) {
+                const gint x = r->x;
+                const gint y = r->y;
+                gdk_draw_image(draw, this->hidden->gc, img,
+                               x, y, x, y, r->w, r->h);
+            }
+            gdk_flush(); /* transfer the GdkImage so we can make changes. */
+        }
+    }
+}
+
+int GTKPLUS_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
+{
+	/* !!! FIXME */
+	return(0);
+}
+
+/* Note:  If we are terminated, this could be called in the middle of
+   another SDL video routine -- notably UpdateRects.
+*/
+void GTKPLUS_VideoQuit(_THIS)
+{
+    int i;
+
+    gdk_flush();
+
+    if (this->hidden->gc != NULL) {
+    	g_object_unref(this->hidden->gc);
+        this->hidden->gc = NULL;
+    }
+
+	if ( this->hidden->gtkwindow ) {
+        /* this deletes the drawing area widget, too. */
+        gtk_widget_destroy(this->hidden->gtkwindow);
+        this->hidden->gtkwindow = NULL;
+    }
+
+	if ( this->hidden->gdkimage ) {
+        g_object_unref(this->hidden->gdkimage);
+        this->hidden->gdkimage = NULL;
+    }
+
+    for (i = 0; i < this->hidden->nvisuals; i++) {
+        g_object_unref(this->hidden->visuals[i]);
+        this->hidden->visuals[i] = NULL;
+    }
+    this->hidden->nvisuals = 0;
+
+	g_object_unref(this->hidden->colormap);
+    this->hidden->colormap = NULL;
+
+    gdk_flush();
+}
+
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/video/gtk/SDL_gtkvideo.h	Thu Apr 19 07:12:30 2007 +0000
@@ -0,0 +1,51 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997-2006 Sam Lantinga
+
+    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 2.1 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+    Sam Lantinga
+    slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+#ifndef _SDL_gtkvideo_h
+#define _SDL_gtkvideo_h
+
+#include "../SDL_sysvideo.h"
+
+#include <gtk/gtk.h>
+
+/* Hidden "this" pointer for the video functions */
+#define _THIS	SDL_VideoDevice *this
+#define SET_THIS_POINTER(x) SDL_VideoDevice *this = (SDL_VideoDevice *) x
+
+
+/* Private display data */
+
+struct SDL_PrivateVideoData {
+    GdkImage *gdkimage;
+    GtkWidget *gtkwindow;
+    GtkWidget *gtkdrawingarea;
+    GdkVisual *visuals[2*5];    /* at most 2 entries for 8, 15, 16, 24, 32 */
+    GdkVisual *visual;
+    GdkColormap *colormap;
+    GdkColormap *display_colormap;
+    GdkGC *gc;
+    int nvisuals;
+    int depth;
+};
+
+#endif /* _SDL_gtkvideo_h */