Avoid restacking animating hidden actors

Since the stack passed to the compositor now accurately reflects
the X stacking order, we need to treat hidden windows (which are
at the bottom of the X stacking order) specially - when the
compositor stacking order is synced, try to keep animating hidden
actors in their old positions in the stack.

http://bugzilla.gnome.org/show_bug.cgi?id=585984

.gitignore

@@ -13,23 +13,17 @@ config.sub
 configure
 depcomp
 install-sh
-intltool-extract.in
-intltool-merge.in
 libtool
 ltmain.sh
 missing
 .deps
-src/50-mutter-windows.xml
+src/metacity-wm.desktop
-src/mutter-wm.desktop
-src/mutter.desktop
 *.o
 *.a
 *.lo
 *.la
 .libs
 *.swp
-*.gir
-*.typelib
 tidy-enum-types.[ch]
 tidy-marshal.[ch]
 stamp-tidy-enum-types.h
@@ -41,35 +35,26 @@ stamp-h1
 stamp-it
 .intltool-merge-cache
 POTFILES
-po/*.pot
 50-metacity-desktop-key.xml
 50-metacity-key.xml
 inlinepixbufs.h
-libmutter.pc
+libmetacity-private.pc
-mutter
+metacity
-mutter-theme-viewer
+metacity-dialog
-mutter.desktop
+metacity-theme-viewer
-org.gnome.mutter.gschema.valid
+metacity.desktop
-org.gnome.mutter.gschema.xml
+metacity.schemas
 testasyncgetprop
 testboxes
 testgradient
-mutter-grayscale
+metacity-grayscale
-mutter-mag
+metacity-mag
-mutter-message
+metacity-message
-mutter-window-demo
+metacity-window-demo
 focus-window
-test-attached
 test-gravity
 test-resizing
 test-size-hints
-# We can't say just "wm-tester" here or it will ignore the directory
+wm-tester
-# rather than the binary
-src/wm-tester/wm-tester
 INSTALL
 mkinstalldirs
-src/mutter-enum-types.[ch]
-src/stamp-mutter-enum-types.h
-src/mutter-marshal.[ch]
-src/stamp-mutter-marshal.h
-src/mutter-plugins.pc

HACKING

@@ -42,10 +42,10 @@ Minimal Building/Testing Environment
   build a development version of Metacity -- odds are, you may be able
   to build metacity from CVS without building any other modules.
 
-  As long as you have gtk+ >= 3.0 and GIO >= 2.25.10 with your distro
+  As long as you have gtk+ >= 2.10 and GConf with your distro (gtk+ >=
-  (gtk+ >= 2.6 if you manually revert the change from bug 348633), you
+  2.6 if you manually revert the change from bug 348633), you should
-  should be able to install your distro's development packages
+  be able to install your distro's development packages
-  (e.g. gtk2-devel, glib-devel, startup-notification-devel on
+  (e.g. gtk2-devel, GConf2-devel, startup-notification-devel on
   Fedora; also, remember to install the gnome-common package which is
   needed for building cvs versions of Gnome modules like Metacity) as
   well as the standard development tools (gcc, autoconf, automake,

README

@@ -18,8 +18,9 @@ COMPILING MUTTER
 You need GTK+ 2.2.  For startup notification to work you need
 libstartup-notification at
 http://www.freedesktop.org/software/startup-notification/ or on the
-GNOME ftp site.
+GNOME ftp site. You also need GConf 1.2 (unless building a funky
-You need Clutter 1.0. You need gobject-introspection 0.6.3.
+extra-small embedded metacity with --disable-gconf, see below).
+You need Clutter 0.9.3. You need gobject-introspection 0.6.3.
 
 REPORTING BUGS AND SUBMITTING PATCHES
 ===
@@ -58,24 +59,25 @@ MUTTER FEATURES
    and should work with KWin, fvwm2, and other EWMH-compliant WMs.)
 
  - Has a simple theme system and a couple of extra themes come with it.
-   Change themes via gsettings:
+   Change themes via gconf-editor or gconftool or GNOME themes control
-     gsettings set org.gnome.desktop.wm.preferences theme Crux
+   panel:
-     gsettings set org.gnome.desktop.wm.preferences theme Gorilla
+     gconftool-2 --type=string --set /apps/metacity/general/theme Crux
-     gsettings set org.gnome.desktop.wm.preferences theme Atlanta
+     gconftool-2 --type=string --set /apps/metacity/general/theme Gorilla
-     gsettings set org.gnome.desktop.wm.preferences theme Bright
+     gconftool-2 --type=string --set /apps/metacity/general/theme Atlanta
+     gconftool-2 --type=string --set /apps/metacity/general/theme Bright
 
    See theme-format.txt for docs on the theme format. Use 
    metacity-theme-viewer to preview themes.
 
- - Change number of workspaces via gsettings:
+ - Change number of workspaces via gconf-editor or gconftool:
-     gsettings set org.gnome.desktop.wm.preferences num-workspaces 5
+     gconftool-2 --type=int --set /apps/metacity/general/num_workspaces 5
 
    Can also change workspaces from GNOME 2 pager.
 
  - Change focus mode:
-     gsettings set org.gnome.desktop.wm.preferences focus-mode mouse
+     gconftool-2 --type=string --set /apps/metacity/general/focus_mode mouse
-     gsettings set org.gnome.desktop.wm.preferences focus-mode sloppy
+     gconftool-2 --type=string --set /apps/metacity/general/focus_mode sloppy
-     gsettings set org.gnome.desktop.wm.preferences focus-mode click
+     gconftool-2 --type=string --set /apps/metacity/general/focus_mode click
 
  - Global keybinding defaults include:   
 
@@ -90,9 +92,10 @@ MUTTER FEATURES
 
    Change keybindings for example:
 
-     gsettings set org.gnome.desktop.wm.keybindings switch-to-workspace-1 '[<Alt>F1]'
+     unst gconftool-2 --type=string --set /apps/metacity/global_keybindings/switch_to_workspace_1 '<Alt>F1'
    
-   Also try the GNOME keyboard shortcuts control panel.
+   Also try the GNOME keyboard shortcuts control panel, or
+   gconf-editor.
 
  - Window keybindings:
 

configure.in

@@ -1,13 +1,15 @@
 AC_PREREQ(2.50)
 
-m4_define([mutter_major_version], [3])
+m4_define([mutter_major_version], [2])
-m4_define([mutter_minor_version], [6])
+m4_define([mutter_minor_version], [27])
+# Fibonacci sequence for micro version numbering:
+# 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987
 m4_define([mutter_micro_version], [0])
 
 m4_define([mutter_version],
           [mutter_major_version.mutter_minor_version.mutter_micro_version])
 
-m4_define([mutter_plugin_api_version], [3])
+m4_define([mutter_plugin_api_version], [2])
 
 AC_INIT([mutter], [mutter_version],
         [http://bugzilla.gnome.org/enter_bug.cgi?product=mutter])
@@ -15,9 +17,8 @@ AC_INIT([mutter], [mutter_version],
 AC_CONFIG_SRCDIR(src/core/display.c)
 AC_CONFIG_HEADERS(config.h)
 
-AM_INIT_AUTOMAKE([1.11 no-dist-gzip dist-xz tar-ustar])
+AM_INIT_AUTOMAKE
-m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])],)
+AM_MAINTAINER_MODE
-AM_MAINTAINER_MODE([enable])
 
 MUTTER_MAJOR_VERSION=mutter_major_version
 MUTTER_MINOR_VERSION=mutter_minor_version
@@ -45,9 +46,6 @@ AC_HEADER_STDC
 AC_LIBTOOL_WIN32_DLL
 AM_PROG_LIBTOOL
 
-# Sets GLIB_GENMARSHAL and GLIB_MKENUMS
-AM_PATH_GLIB_2_0()
-
 #### Integer sizes
 
 AC_CHECK_SIZEOF(char)
@@ -61,23 +59,80 @@ AC_CHECK_SIZEOF(__int64)
 ## byte order
 AC_C_BIGENDIAN
 
-CANBERRA_GTK=libcanberra-gtk3
+#### Warnings
-CANBERRA_GTK_VERSION=0.26
 
-CLUTTER_PACKAGE=clutter-1.0
+changequote(,)dnl
+if test "x$GCC" = "xyes"; then
+  case " $CFLAGS " in
+  *[\ \	]-Wall[\ \	]*) ;;
+  *) CFLAGS="$CFLAGS -Wall" ;;
+  esac
 
-MUTTER_PC_MODULES="
+#  case " $CFLAGS " in
-   gtk+-3.0 >= 3.3.7
+#  *[\ \	]-Wshadow[\ \	]*) ;;
-   gio-2.0 >= 2.25.10
+#  *) CFLAGS="$CFLAGS -Wshadow" ;;
-   pango >= 1.2.0
+#  esac
-   cairo >= 1.10.0
-   gsettings-desktop-schemas >= 3.3.0
-   xcomposite >= 0.2 xfixes xrender xdamage
-   $CLUTTER_PACKAGE >= 1.9.10
-   cogl-1.0 >= 1.9.6
-"
 
-GLIB_GSETTINGS
+  case " $CFLAGS " in
+  *[\ \	]-Wchar-subscripts[\ \	]*) ;;
+  *) CFLAGS="$CFLAGS -Wchar-subscripts" ;;
+  esac
+
+  case " $CFLAGS " in
+  *[\ \	]-Wmissing-declarations[\ \	]*) ;;
+  *) CFLAGS="$CFLAGS -Wmissing-declarations" ;;
+  esac
+
+  case " $CFLAGS " in
+  *[\ \	]-Wmissing-prototypes[\ \	]*) ;;
+  *) CFLAGS="$CFLAGS -Wmissing-prototypes" ;;
+  esac
+
+  case " $CFLAGS " in
+  *[\ \	]-Wnested-externs[\ \	]*) ;;
+  *) CFLAGS="$CFLAGS -Wnested-externs" ;;
+  esac
+
+  case " $CFLAGS " in
+  *[\ \	]-Wpointer-arith[\ \	]*) ;;
+  *) CFLAGS="$CFLAGS -Wpointer-arith" ;;
+  esac
+
+  case " $CFLAGS " in
+  *[\ \	]-Wcast-align[\ \	]*) ;;
+  *) CFLAGS="$CFLAGS -Wcast-align" ;;
+  esac
+
+  case " $CFLAGS " in
+  *[\ \	]-Wsign-compare[\ \	]*) ;;
+  *) CFLAGS="$CFLAGS -Wsign-compare" ;;
+  esac
+
+  if test "x$enable_ansi" = "xyes"; then
+    case " $CFLAGS " in
+    *[\ \	]-ansi[\ \	]*) ;;
+    *) CFLAGS="$CFLAGS -ansi" ;;
+    esac
+
+    case " $CFLAGS " in
+    *[\ \	]-pedantic[\ \	]*) ;;
+    *) CFLAGS="$CFLAGS -pedantic" ;;
+    esac
+  fi
+fi
+changequote([,])dnl
+
+MUTTER_PC_MODULES='gtk+-2.0 >= 2.10.0 pango >= 1.2.0'
+
+AC_ARG_ENABLE(gconf,
+  AC_HELP_STRING([--disable-gconf],
+                 [disable gconf usage, for embedded/size-sensitive non-GNOME builds]),,
+  enable_gconf=yes)
+
+if test x$enable_gconf = xyes; then
+    AC_DEFINE(HAVE_GCONF,1,[Build with gconf support])
+    MUTTER_PC_MODULES="$MUTTER_PC_MODULES gconf-2.0 >= 1.2.0"
+fi
 
 AC_ARG_ENABLE(verbose-mode,
   AC_HELP_STRING([--disable-verbose-mode],
@@ -98,29 +153,53 @@ AC_ARG_ENABLE(startup-notification,
                  [disable mutter's startup notification support, for embedded/size-sensitive custom non-GNOME builds]),,
   enable_startup_notification=auto)
 
-AC_ARG_WITH(libcanberra,
+AC_ARG_ENABLE(compositor,
-  AC_HELP_STRING([--without-libcanberra],
+  AC_HELP_STRING([--disable-compositor],
-                 [disable the use of libcanberra for playing sounds]),,
+                 [disable mutter's compositing manager]),,
-  with_libcanberra=auto)
+  enable_compositor=auto)
+
+AC_ARG_ENABLE(clutter,
+  AC_HELP_STRING([--without-clutter],
+                 [disable the use of clutter for compositing]),,
+  with_clutter=auto)
+
+AC_ARG_ENABLE(introspection,
+  AC_HELP_STRING([--without-introspection],
+                 [disable the use of GObject introspection]),,
+  with_introspection=auto)
 
 AC_ARG_ENABLE(xsync,
   AC_HELP_STRING([--disable-xsync],
                  [disable mutter's use of the XSync extension]),,
   enable_xsync=auto)
 
+AC_ARG_ENABLE(render,
+  AC_HELP_STRING([--disable-render],
+                 [disable mutter's use of the RENDER extension]),,
+  enable_render=auto)
+
 AC_ARG_ENABLE(shape,
   AC_HELP_STRING([--disable-shape],
                  [disable mutter's use of the shaped window extension]),,
   enable_shape=auto)
 
+## try definining HAVE_BACKTRACE
+AC_CHECK_HEADERS(execinfo.h, [AC_CHECK_FUNCS(backtrace)])
+
 AM_GLIB_GNU_GETTEXT
 
 ## here we get the flags we'll actually use
-# GRegex requires Glib-2.14.0
+# GOptionEntry requires	glib-2.6.0
-PKG_CHECK_MODULES(ALL, glib-2.0 >= 2.14.0)
+PKG_CHECK_MODULES(ALL, glib-2.0 >= 2.6.0)
-# gtk_window_set_icon_name requires gtk2+-2.6.0
+# gtk_window_set_icon_name requires gtk2+-2.60
-PKG_CHECK_MODULES(MUTTER_MESSAGE, gtk+-3.0)
+PKG_CHECK_MODULES(MUTTER_MESSAGE, gtk+-2.0 >= 2.6.0)
-PKG_CHECK_MODULES(MUTTER_WINDOW_DEMO, gtk+-3.0)
+PKG_CHECK_MODULES(MUTTER_WINDOW_DEMO, gtk+-2.0 >= 2.6.0)
+
+if $PKG_CONFIG --atleast-version 1.2.0 pangoxft; then
+   echo "pangoxft found"
+else
+   AC_MSG_ERROR("Pango 1.2.0 or greater based on Xft2 is required")
+fi
 
 # Unconditionally use this dir to avoid a circular dep with gnomecc
 GNOME_KEYBINDINGS_KEYSDIR="${datadir}/gnome-control-center/keybindings"
@@ -152,38 +231,122 @@ else
   echo "Building without libstartup-notification"
 fi
 
-have_libcanberra=no
+## init this, it gets set either in the compositor check below
-AC_MSG_CHECKING([libcanberra-gtk])
+## or the render-specific check later
-if test x$with_libcanberra = xno ; then
+have_xrender=no
-  AC_MSG_RESULT([disabled])
+
+XCOMPOSITE_VERSION=0.2
+if test x$enable_compositor = xyes; then
+   have_xcomposite=yes
+elif test x$enable_compositor = xauto; then
+   echo "Building compositing manager by default now."
+   have_xcomposite=yes
 else
-  if $PKG_CONFIG --exists $CANBERRA_GTK '>=' $CANBERRA_GTK_VERSION; then
+   have_xcomposite=no
-    have_libcanberra=yes
+fi
-    AC_MSG_RESULT(yes)
+
-    MUTTER_PC_MODULES="$MUTTER_PC_MODULES $CANBERRA_GTK"
+if test x$with_clutter = xyes; then
-    AC_DEFINE([HAVE_LIBCANBERRA], 1, [Building with libcanberra for playing sounds])
+   have_xcomposite=yes
+   have_clutter=yes
+elif test x$with_clutter = xauto; then
+   echo "Building clutter compositing manager by default now."
+   have_xcomposite=yes
+   have_clutter=yes
+else
+   have_clutter=no
+fi
+
+AM_CONDITIONAL(WITH_CLUTTER, test "$have_clutter" = "yes")
+
+if test x$have_xcomposite = xyes; then
+   AC_MSG_CHECKING([Xcomposite >= $XCOMPOSITE_VERSION])
+   if $PKG_CONFIG --atleast-version $XCOMPOSITE_VERSION xcomposite; then
+      AC_MSG_RESULT([yes])
+   else
+      AC_MSG_ERROR([no. Use --disable-compositor to disable.])
+   fi
+fi
+
+if test x$have_xcomposite = xyes; then
+  MUTTER_PC_MODULES="$MUTTER_PC_MODULES xcomposite >= $XCOMPOSITE_VERSION xfixes xrender xdamage"
+  AC_DEFINE(HAVE_COMPOSITE_EXTENSIONS, 1, [Building with compositing manager support])
+  echo "Building with compositing manager"
+
+  ## force on render also
+  have_xrender=yes
+else
+  echo "Building without compositing manager"
+fi
+
+## if no compositor, still possibly enable render
+if test x$have_xcomposite = xno; then
+  XRENDER_VERSION=0.0
+  AC_MSG_CHECKING([xrender >= $XRENDER_VERSION])
+  if $PKG_CONFIG --atleast-version $XRENDER_VERSION xrender; then
+     have_xrender=yes
   else
-    AC_MSG_RESULT(no)
+     have_xrender=no
-    if test x$with_libcanberra = xyes ; then
+  fi
-      AC_MSG_ERROR([libcanberra forced and libcanberra-gtk was not found])
+  AC_MSG_RESULT($have_xrender)
-    fi
+
+  if test x$enable_render = xyes; then
+     have_xrender=yes
+     echo "Render support forced on"
+  elif test x$enable_render = xauto; then
+     true
+  else
+     have_xrender=no
+  fi
+
+  if test x$have_xrender = xyes; then
+     echo "Building with Render"
+     MUTTER_PC_MODULES="$MUTTER_PC_MODULES xrender >= $XRENDER_VERSION"
+  fi
+fi ## have_composite
+
+if test x$have_xrender = xyes; then
+  AC_DEFINE(HAVE_RENDER, , [Building with Render extension support])
+fi
+
+CLUTTER_PACKAGE=clutter-0.9
+AC_SUBST(CLUTTER_PACKAGE)
+if test x$have_clutter = xyes; then
+  MUTTER_PC_MODULES="$MUTTER_PC_MODULES $CLUTTER_PACKAGE "
+  PKG_CHECK_MODULES(CLUTTER, $CLUTTER_PACKAGE)
+  AC_DEFINE(WITH_CLUTTER, , [Building with Clutter compositor])
+
+  dnl Check for the clutter-glx-texture-pixmap header
+  mutter_save_cppflags="$CPPFLAGS"
+  CPPFLAGS="$CPPFLAGS $CLUTTER_CFLAGS"
+  AC_CHECK_HEADER([clutter/glx/clutter-glx-texture-pixmap.h],
+                  [have_glx_texture_pixmap=yes],
+                  [have_glx_texture_pixmap=no])
+  CPPFLAGS="$mutter_save_cppflags"
+
+  if test x$have_glx_texture_pixmap = xyes; then
+    AC_DEFINE(HAVE_GLX_TEXTURE_PIXMAP, ,
+              [Is ClutterGLXTexturePixmap available?])
   fi
 fi
 
-INTROSPECTION_VERSION=0.9.5
+if test x$with_introspection != xno; then
-GOBJECT_INTROSPECTION_CHECK([$INTROSPECTION_VERSION])
+  PKG_CHECK_MODULES(INTROSPECTION, gobject-introspection-1.0, have_introspection=yes, have_introspection=no)
-
+  if test x$have_introspection=xyes; then
-if test x$found_introspection != xno; then
+    MUTTER_PC_MODULES="$MUTTER_PC_MODULES gobject-introspection-1.0"
-  AC_DEFINE(HAVE_INTROSPECTION, 1, [Define if GObject introspection is available])
+    AC_DEFINE(HAVE_INTROSPECTION, 1, [Define if GObject introspection is available])
-  MUTTER_PC_MODULES="$MUTTER_PC_MODULES gobject-introspection-1.0"
+    G_IR_SCANNER=`$PKG_CONFIG --variable=g_ir_scanner gobject-introspection-1.0`
-  # Since we don't make any guarantees about stability and we don't support
+    AC_SUBST(G_IR_SCANNER)
-  # parallel install, there's no real reason to change directories, filenames,
+    G_IR_COMPILER=`$PKG_CONFIG --variable=g_ir_compiler gobject-introspection-1.0`
-  # etc. as we change the Mutter tarball version. Note that this must match
+    AC_SUBST(G_IR_COMPILER)
-  # api_version in src/Makefile.am
+    G_IR_GENERATE=`$PKG_CONFIG --variable=g_ir_generate gobject-introspection-1.0`
-  META_GIR=Meta_3_0_gir
+    AC_SUBST(G_IR_GENERATE)
-  # META_GIR=[Meta_]mutter_major_version[_]mutter_minor_version[_gir]
+    GIRDIR=`$PKG_CONFIG --variable=girdir gobject-introspection-1.0`
-  AC_SUBST(META_GIR)
+    AC_SUBST(GIRDIR)
+    TYPELIBDIR="$($PKG_CONFIG --variable=typelibdir gobject-introspection-1.0)"
+    AC_SUBST(TYPELIBDIR)
+  fi
 fi
+AM_CONDITIONAL(WITH_INTROSPECTION, test "$have_introspection" = "yes")
 
 AC_MSG_CHECKING([Xcursor])
 if $PKG_CONFIG xcursor; then
@@ -201,39 +364,64 @@ fi
 
 PKG_CHECK_MODULES(MUTTER, $MUTTER_PC_MODULES)
 
-# This is used for plugins
-AC_SUBST(CLUTTER_PACKAGE)
-PKG_CHECK_MODULES(CLUTTER, $CLUTTER_PACKAGE)
-
 AC_PATH_XTRA
 
 ALL_X_LIBS="$X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS"
 
-# Check for Xinerama extension - we only support the "XFree86" style,
+# Check for Xinerama extension (Solaris impl or Xfree impl)
-# and not the older Solaris-only version; recent Solaris supports the
-# XFree86 style.
 mutter_save_cppflags="$CPPFLAGS"
 CPPFLAGS="$CPPFLAGS $X_CFLAGS"
 
-have_xinerama=yes
+AC_ARG_ENABLE(xinerama,
-AC_CHECK_LIB(Xinerama, XineramaQueryExtension,
+  AC_HELP_STRING([--disable-xinerama],
-    [AC_CHECK_HEADER(X11/extensions/Xinerama.h,
+                 [disable mutter's use of the Xinerama extension]),
-		     [X_EXTRA_LIBS="-lXinerama $X_EXTRA_LIBS"
+  try_xinerama=$enable_xinerama,try_xinerama=yes)
-		     if test -z "`echo $ALL_X_LIBS | grep "\-lXext" 2> /dev/null`"; then
+
-			 X_EXTRA_LIBS="-lXext $X_EXTRA_LIBS"
+use_solaris_xinerama=no
-		     fi],
+use_xfree_xinerama=no
-		     have_xinerama=no,
+if test "${try_xinerama}" != no; then
-		     [#include <X11/Xlib.h>])],
+    case "$host" in
-    have_xinerama=no, -lXext $ALL_X_LIBS)
+        *-*-solaris*)
-AC_MSG_CHECKING(for Xinerama support)
+            # Check for solaris
-AC_MSG_RESULT($have_xinerama)
+            use_solaris_xinerama=yes
+            AC_CHECK_LIB(Xext, XineramaGetInfo,
+                         use_solaris_xinerama=yes, use_solaris_xinerama=no,
+                         $ALL_X_LIBS)
+            if test "x$use_solaris_xinerama" = "xyes"; then
+                AC_CHECK_HEADER(X11/extensions/xinerama.h,
+                                if test -z "`echo $ALL_X_LIBS | grep "\-lXext" 2> /dev/null`"; then
+                                    X_EXTRA_LIBS="-lXext $X_EXTRA_LIBS"
+                                fi
+                                AC_DEFINE(HAVE_SOLARIS_XINERAMA, , [Have Solaris-style Xinerama])
+                                AC_DEFINE(HAVE_XINERAMA, , [Have some version of Xinerama]),
+                                use_solaris_xinerama=no,
+                                [#include <X11/Xlib.h>])
+            fi
+            AC_MSG_CHECKING(for Xinerama support on Solaris)
+            AC_MSG_RESULT($use_solaris_xinerama);
+            ;;
+        *)
+            # Check for XFree
+            use_xfree_xinerama=yes
+            AC_CHECK_LIB(Xinerama, XineramaQueryExtension,
+                [AC_CHECK_HEADER(X11/extensions/Xinerama.h,
+                                 X_EXTRA_LIBS="-lXinerama $X_EXTRA_LIBS"
+                                 if test -z "`echo $ALL_X_LIBS | grep "\-lXext" 2> /dev/null`"; then
+                                     X_EXTRA_LIBS="-lXext $X_EXTRA_LIBS"
+                                 fi
+                                 AC_DEFINE(HAVE_XFREE_XINERAMA, , [Have XFree86-style Xinerama])
+                                 AC_DEFINE(HAVE_XINERAMA,, [Have some version of Xinerama]),
+                                 use_xfree_xinerama=no,
+                                 [#include <X11/Xlib.h>])],
+                use_xfree_xinerama=no, -lXext $ALL_X_LIBS)
+            AC_MSG_CHECKING(for Xinerama support on XFree86)
+            AC_MSG_RESULT($use_xfree_xinerama);
+            ;;
+    esac
+fi
 
 CPPFLAGS="$mutter_save_cppflags"
 
-if test x$have_xinerama = xno; then
-   AC_MSG_ERROR([Xinerama extension was not found])
-fi
-
 SHAPE_LIBS=
 found_shape=no
 AC_CHECK_LIB(Xext, XShapeQueryExtension,
@@ -305,7 +493,7 @@ fi
 
 MUTTER_LIBS="$MUTTER_LIBS $XSYNC_LIBS $RANDR_LIBS $SHAPE_LIBS $X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS -lm"
 MUTTER_MESSAGE_LIBS="$MUTTER_MESSAGE_LIBS $X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS"
-MUTTER_WINDOW_DEMO_LIBS="$MUTTER_WINDOW_DEMO_LIBS $X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS -lm"
+MUTTER_WINDOW_DEMO_LIBS="$MUTTER_WINDOW_DEMO_LIBS $X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS"
 MUTTER_PROPS_LIBS="$MUTTER_PROPS_LIBS $X_LIBS $X_PRE_LIBS -lX11 $X_EXTRA_LIBS"
 
 found_sm=no
@@ -349,6 +537,18 @@ fi
 
 AC_SUBST(GDK_PIXBUF_CSOURCE)
 
+if test x$enable_gconf = xyes; then
+   AC_PATH_PROG(GCONFTOOL, gconftool-2, no)
+   if test x"$GCONFTOOL" = xno; then
+     AC_MSG_ERROR([gconftool-2 executable not found in your path - should be installed with GConf])
+   fi
+
+   AM_GCONF_SOURCE_2
+else
+  GCONF_SCHEMAS_INSTALL_TRUE='#'
+  GCONF_SCHEMAS_INSTALL_FALSE=
+fi
+
 AC_PATH_PROG(ZENITY, zenity, no)
 if test x"$ZENITY" = xno; then
   AC_MSG_ERROR([zenity not found in your path - needed for dialogs])
@@ -361,74 +561,13 @@ if test "x$enable_debug" = "xyes"; then
 	CFLAGS="$CFLAGS -g -O"
 fi
 
-# For fix-meta-rectangle.py
+# Warnings are there for a reason
-AM_PATH_PYTHON([2.5])
+if test "x$GCC" = "xyes"; then
-
+  CFLAGS="$CFLAGS -Wall -Werror -ansi"
-#### Warnings (last since -Werror can disturb other tests)
-
-# Stay command-line compatible with the gnome-common configure option. Here
-# minimum/yes/maximum are the same, however.
-AC_ARG_ENABLE(compile_warnings,
-  AS_HELP_STRING([--enable-compile-warnings=@<:@no/minimum/yes/maximum/error@:>@],[Turn on compiler warnings]),,
-  enable_compile_warnings=error)
-
-changequote(,)dnl
-if test "$enable_compile_warnings" != no ; then
-  if test "x$GCC" = "xyes"; then
-    case " $CFLAGS " in
-    *[\ \	]-Wall[\ \	]*) ;;
-    *) CFLAGS="$CFLAGS -Wall" ;;
-    esac
-
-#   case " $CFLAGS " in
-#   *[\ \	]-Wshadow[\ \	]*) ;;
-#   *) CFLAGS="$CFLAGS -Wshadow" ;;
-#   esac
-
-    case " $CFLAGS " in
-    *[\ \	]-Wchar-subscripts[\ \	]*) ;;
-    *) CFLAGS="$CFLAGS -Wchar-subscripts" ;;
-    esac
-
-    case " $CFLAGS " in
-    *[\ \	]-Wmissing-declarations[\ \	]*) ;;
-    *) CFLAGS="$CFLAGS -Wmissing-declarations" ;;
-    esac
-
-    case " $CFLAGS " in
-    *[\ \	]-Wmissing-prototypes[\ \	]*) ;;
-    *) CFLAGS="$CFLAGS -Wmissing-prototypes" ;;
-    esac
-
-    case " $CFLAGS " in
-    *[\ \	]-Wnested-externs[\ \	]*) ;;
-    *) CFLAGS="$CFLAGS -Wnested-externs" ;;
-    esac
-
-    case " $CFLAGS " in
-    *[\ \	]-Wpointer-arith[\ \	]*) ;;
-    *) CFLAGS="$CFLAGS -Wpointer-arith" ;;
-    esac
-
-    case " $CFLAGS " in
-    *[\ \	]-Wcast-align[\ \	]*) ;;
-    *) CFLAGS="$CFLAGS -Wcast-align" ;;
-    esac
-
-    case " $CFLAGS " in
-    *[\ \	]-Wsign-compare[\ \	]*) ;;
-    *) CFLAGS="$CFLAGS -Wsign-compare" ;;
-    esac
-
-    if test "$enable_compile_warnings" = error; then
-      case " $CFLAGS " in
-      *[\ \	]-Werror[\ \	]*) ;;
-      *) CFLAGS="$CFLAGS -Werror -Wno-error=deprecated-declarations" ;;
-      esac
-    fi
-  fi
 fi
-changequote([,])dnl
+
+# Use gnome-doc-utils:
+GNOME_DOC_INIT([0.8.0])
 
 AC_CONFIG_FILES([
 Makefile
@@ -436,15 +575,22 @@ doc/Makefile
 doc/man/Makefile
 src/Makefile
 src/wm-tester/Makefile
-src/libmutter.pc
+src/libmutter-private.pc
 src/mutter-plugins.pc
 src/tools/Makefile
-src/compositor/plugins/Makefile
+src/compositor/mutter/plugins/Makefile
 po/Makefile.in
 ])
 
 AC_OUTPUT
 
+if test x$enable_gconf = xno; then
+        echo "*** WARNING WARNING WARNING WARNING WARNING"
+        echo "*** Building without GConf.  This means there's no"
+        echo "*** way to change prefs except hacking source code."
+        echo "*** This is intended for embedded systems etc., not for normal use."
+fi
+
 if test x$enable_verbose_mode = xno; then
         echo "*** WARNING WARNING WARNING WARNING WARNING"
         echo "*** Building without verbose mode"
@@ -455,28 +601,33 @@ fi
 
 dnl ==========================================================================
 echo "
-mutter-$VERSION
+mutter-$VERSION:
 
 	prefix:                   ${prefix}
 	source code location:	  ${srcdir}
 	compiler:		  ${CC}
 
+	GConf:                    ${enable_gconf}
+	XFree86 Xinerama:         ${use_xfree_xinerama}
+	Solaris Xinerama:         ${use_solaris_xinerama}
 	Startup notification:     ${have_startup_notification}
-	libcanberra:              ${have_libcanberra}
+	Compositing manager:      ${have_xcomposite}
-	Introspection:            ${found_introspection}
+	Introspection:            ${have_introspection}
 	Session management:       ${found_sm}
 	Shape extension:          ${found_shape}
+	Resize-and-rotate:        ${found_randr}
 	Xsync:                    ${found_xsync}
+	Render:                   ${have_xrender}
 	Xcursor:                  ${have_xcursor}
+	Clutter:                  ${have_clutter}
 "
 
-
 MUTTER_MINOR_VERSION=mutter_minor_version
-if expr $MUTTER_MINOR_VERSION % 2 > /dev/null ; then
+if test $(( $(echo $MUTTER_MINOR_VERSION) %2)) == "1"; then
-   stable_version=`expr $MUTTER_MINOR_VERSION - 1`
+   stable_version=$(( ($MUTTER_MINOR_VERSION / 2) * 2))
    echo "This is the UNSTABLE branch of mutter"
-   echo -n "Use 3.$stable_version.x for stable "
+   echo -n "Use 2.$stable_version.x for stable "
-   echo    "(gnome-3-$stable_version branch in git)"
+   echo    "(gnome-2-$stable_version branch in Subversion)"
 else
    echo "This is the stable branch of mutter"
 fi

doc/how-to-get-focus-right.txt

@@ -31,7 +31,8 @@ workspaces.  In these cases, there needs to be a rule consistent with
 the above about the new window to choose.
 
 Focus method  Behavior
-    click     Focus the window on top
+    click     Focus the most recently used window (same as the window
+              on top)
    sloppy     Focus the window containing the pointer if there is such
               a window, otherwise focus the most recently used window.
     mouse     Focus the non-DESKTOP window containing the pointer if

doc/man/mutter-message.1

@@ -46,13 +46,13 @@ because the original program does not have a manual page.
 Restart \fBmutter\fP(1) which is running.
 .TP
 .B reload-theme
-Reload a theme which is specified on gsettings database.
+Reload a theme which is specified on gconf database.
 .TP
 .B enable-keybindings
-Enable all of keybindings which is specified on gsettings database.
+Enable all of keybindings which is specified on gconf database.
 .TP
 .B disable-keybindings
-Disable all of keybindings which is specified on gsettings database.
+Disable all of keybindings which is specified on gconf database.
 .SH SEE ALSO
 .BR mutter (1)
 .SH AUTHOR

doc/man/mutter.1

@@ -51,7 +51,7 @@ Print the version number.
 .B \-?, \-\-help
 Show summary of options.
 .SH CONFIGURATION
-\fBmutter\fP configuration can be found under \fIPreferences\fP->\fIWindows\fP and \fIPreferences\fP->\fIKeyboard Shortcuts\fP on the menu-panel. Advanced configuration can be achieved directly through gsettings.
+\fBmutter\fP configuration can be found under \fIPreferences\fP->\fIWindows\fP and \fIPreferences\fP->\fIKeyboard Shortcuts\fP on the menu-panel. Advanced configuration can be achieved directly through gconf editing (gconf-editor or gconftool-2).
 .SH SEE ALSO
 .BR mutter-message (1)
 .SH AUTHOR

doc/theme-format.txt

@@ -4,7 +4,6 @@ of the theme format, and a given theme can support more than one format.
 Version 1:     THEMEDIR/metacity-1/metacity-theme-1.xml
   (original metacity format)
 Version 2:     THEMEDIR/metacity-1/metacity-theme-2.xml
-Version 3:     THEMEDIR/metacity-1/metacity-theme-3.xml
 
 The subdirectory name is "metacity-1" in all versions.
 
@@ -22,71 +21,6 @@ This document has separate sections for each format version. You may
 want to read the document in reverse order, since the base features
 are discussed under version 1.
 
-New Features in Theme Format Version 3.4
-========================================
-
-An additional color type is added to pick up custom colors defined
-in the GTK+ theme's CSS:
-
-  gtk:custom(name,fallback)
-
-where <name> refers to a custom color defined with @define-color in
-the GTK+ theme, and <fallback> provides an alternative color definition
-in case the color referenced by <name> is not found.
-
-New Features in Theme Format Version 3.3
-========================================
-
-Add two additional button background functions - left_single_background and
-right_single_background - for button groups with just a single button.
-
-There are now additional frame states to style left/right tiled windows
-differently ("tiled_left", "tiled_right", "tiled_left_and_shaded",
-"tiled_right_and_shaded").
-
-New Features in Theme Format Version 3.2
-========================================
-
-A new window type 'attached' is added for modal dialogs which are
-attached to their parent window. (When the attach_modal_dialogs preference
-is turned on.) If no style is defined for the 'attached' window type,
-the 'border' window type will be used instead.
-
-New Features in Theme Format Version 3.1
-========================================
-
-Additional predefined variables are added for positioning expressions:
-
- frame_x_center: the X center of the entire frame, with respect to the
-     piece currently being drawn.
- frame_y_center: the Y center of the entire frame, with respect to the
-     piece currently being drawn.
-
-The <title/> element now supports an "ellipsize_width" attribute. When
-specified, this gives a width at which to ellipsize the title. If not
-specified, the title will simply be clipped to the title area.
-
-New Features in Theme Format Version 3
-======================================
-
-Format version 3 has exactly one new feature; any element in the file
-can now have a version attribute:
-
-  version="[<|<=|=>|>] MAJOR.MINOR"
-
-(< and > should be to be entity escaped as &lt; and &gt;). If this
-version check is not met, then the element and its children will be
-ignored. This allows having alternate sections of the theme file for
-older and newer version of the Metacity theme format.
-
-When placed on the toplevel <metacity_theme> element, an unsatisfied
-version check will not just cause the contents of the file to be
-ignored, it will also cause the lookup of a theme file to proceed on
-and look for an older format 2 or format 1 file. This allows making a
-metacity-theme-3.xml file that is only used the format version 3.2 or
-newer is supported, and using metacity-theme-1.xml for older window
-managers.
-
 New Features in Theme Format Version 2
 ======================================
 

mutter.doap

@@ -6,16 +6,6 @@
 
   <name xml:lang="en">mutter</name>
   <shortdesc xml:lang="en">Window and compositing manager based on Clutter</shortdesc>
-  <description>Mutter is a window and compositing manager that displays and
-manages your desktop via OpenGL. Mutter combines a sophisticated display engine
-using the Clutter toolkit with solid window-management logic inherited from the
-Metacity window manager.
-
-While Mutter can be used stand-alone, it is primarily intended to be used as
-the display core of a larger system such as GNOME Shell. For this reason,
-Mutter is very extensible via plugins, which are used both to add fancy visual
-effects and to rework the window management behaviors to meet the needs of the
-environment.</description>
   <!--
   <homepage rdf:resource="http://www.gnome.org/" />
   -->
@@ -39,11 +29,4 @@ environment.</description>
       <gnome:userid>otaylor</gnome:userid>
     </foaf:Person>
   </maintainer>
-  <maintainer>
-    <foaf:Person>
-      <foaf:name>Florian Müllner</foaf:name>
-      <foaf:mbox rdf:resource="mailto:fmuellner@gnome.org" />
-      <gnome:userid>fmuellner</gnome:userid>
-    </foaf:Person>
-  </maintainer>
 </Project>

po/LINGUAS

@@ -10,7 +10,6 @@ be@latin
 bg
 bn
 bn_IN
-br
 bs
 ca
 ca@valencia
@@ -22,7 +21,6 @@ dz
 el
 en_CA
 en_GB
-eo
 es
 et
 eu
@@ -58,7 +56,6 @@ mn
 mr
 ms
 nb
-nds
 ne
 nl
 nn
@@ -83,7 +80,6 @@ te
 th
 tk
 tr
-ug 
 uk
 vi
 wa

po/POTFILES.in

@@ -1,15 +1,11 @@
 # List of source files containing translatable strings.
 # Please keep this file sorted alphabetically.
-src/50-mutter-windows.xml.in
-src/compositor/compositor.c
-src/core/bell.c
 src/core/core.c
 src/core/delete.c
 src/core/display.c
 src/core/errors.c
 src/core/keybindings.c
 src/core/main.c
-src/core/mutter.c
 src/core/prefs.c
 src/core/screen.c
 src/core/session.c
@@ -17,9 +13,10 @@ src/core/util.c
 src/core/window.c
 src/core/window-props.c
 src/core/xprops.c
+src/include/all-keybindings.h
 src/mutter.desktop.in
 src/mutter-wm.desktop.in
-src/org.gnome.mutter.gschema.xml.in
+src/mutter.schemas.in
 src/tools/mutter-message.c
 src/ui/frames.c
 src/ui/menu.c

src/50-mutter-windows.xml.in

@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" ?>
-<KeyListEntries schema="org.gnome.mutter.keybindings"
-                group="system"
-                _name="Windows"
-                wm_name="Mutter"
-                package="mutter">
-
-	<KeyListEntry name="toggle-tiled-left"
-                      _description="View split on left"/>
-
-	<KeyListEntry name="toggle-tiled-right"
-                      _description="View split on right"/>
-
-</KeyListEntries>
-

src/Makefile.am

@@ -1,114 +1,71 @@
-# Flag build for parallelism; see https://savannah.gnu.org/patch/?6905
+lib_LTLIBRARIES = libmutter-private.la
-.AUTOPARALLEL:
 
-lib_LTLIBRARIES = libmutter.la
+SUBDIRS=wm-tester tools
 
-SUBDIRS=wm-tester tools compositor/plugins
+if WITH_CLUTTER
+SUBDIRS += compositor/mutter/plugins
+endif
 
-INCLUDES=								\
+INCLUDES=@MUTTER_CFLAGS@ -I $(srcdir)/include -I$(srcdir)/compositor -DMUTTER_LIBEXECDIR=\"$(libexecdir)\" -DHOST_ALIAS=\"@HOST_ALIAS@\" -DMUTTER_LOCALEDIR=\"$(prefix)/@DATADIRNAME@/locale\" -DMUTTER_PKGDATADIR=\"$(pkgdatadir)\" -DMUTTER_DATADIR=\"$(datadir)\" -DG_LOG_DOMAIN=\"mutter\" -DSN_API_NOT_YET_FROZEN=1 -DMUTTER_MAJOR_VERSION=$(MUTTER_MAJOR_VERSION) -DMUTTER_MINOR_VERSION=$(MUTTER_MINOR_VERSION) -DMUTTER_MICRO_VERSION=$(MUTTER_MICRO_VERSION) -DMUTTER_PLUGIN_API_VERSION=$(MUTTER_PLUGIN_API_VERSION) -DMUTTER_PKGLIBDIR=\"$(pkglibdir)\" -DMUTTER_PLUGIN_DIR=\"@MUTTER_PLUGIN_DIR@\"
-	$(MUTTER_CFLAGS)						\
-	-I$(srcdir)							\
-	-I$(srcdir)/core						\
-	-I$(srcdir)/ui							\
-	-I$(srcdir)/compositor						\
-	-DMUTTER_LIBEXECDIR=\"$(libexecdir)\"				\
-	-DHOST_ALIAS=\"@HOST_ALIAS@\"					\
-	-DMUTTER_LOCALEDIR=\"$(prefix)/@DATADIRNAME@/locale\"		\
-	-DMUTTER_PKGDATADIR=\"$(pkgdatadir)\"				\
-	-DMUTTER_DATADIR=\"$(datadir)\"					\
-	-DG_LOG_DOMAIN=\"mutter\"					\
-	-DSN_API_NOT_YET_FROZEN=1					\
-	-DMUTTER_MAJOR_VERSION=$(MUTTER_MAJOR_VERSION)			\
-	-DMUTTER_MINOR_VERSION=$(MUTTER_MINOR_VERSION)			\
-	-DMUTTER_MICRO_VERSION=$(MUTTER_MICRO_VERSION)			\
-	-DMUTTER_PLUGIN_API_VERSION=$(MUTTER_PLUGIN_API_VERSION)	\
-	-DMUTTER_PKGLIBDIR=\"$(pkglibdir)\"				\
-	-DMUTTER_PLUGIN_DIR=\"@MUTTER_PLUGIN_DIR@\"			\
-	-DGETTEXT_PACKAGE=\"$(GETTEXT_PACKAGE)\"
 
-mutter_built_sources = \
+mutter_SOURCES= 				\
-	mutter-enum-types.h \
-	mutter-enum-types.c
-
-libmutter_la_SOURCES =				\
 	core/async-getprop.c			\
 	core/async-getprop.h			\
+	core/alttabhandler.c			\
+	include/alttabhandler.h			\
+	core/alttabhandlerdefault.c		\
+	include/alttabhandlerdefault.h		\
 	core/bell.c				\
 	core/bell.h				\
 	core/boxes.c				\
-	core/boxes-private.h			\
+	include/boxes.h				\
-	meta/boxes.h				\
-	compositor/cogl-utils.c			\
-	compositor/cogl-utils.h			\
 	compositor/compositor.c			\
 	compositor/compositor-private.h		\
-	compositor/meta-background-actor.c	\
+	compositor/compositor-xrender.c		\
-	compositor/meta-background-actor-private.h	\
+	compositor/compositor-xrender.h		\
-	compositor/meta-module.c		\
+	include/compositor.h			\
-	compositor/meta-module.h		\
-	compositor/meta-plugin.c		\
-	compositor/meta-plugin-manager.c	\
-	compositor/meta-plugin-manager.h	\
-	compositor/meta-shadow-factory.c	\
-	compositor/meta-shadow-factory-private.h	\
-	compositor/meta-shaped-texture.c	\
-	compositor/meta-texture-rectangle.c	\
-	compositor/meta-texture-rectangle.h	\
-	compositor/meta-texture-tower.c		\
-	compositor/meta-texture-tower.h		\
-	compositor/meta-window-actor.c		\
-	compositor/meta-window-actor-private.h	\
-	compositor/meta-window-group.c		\
-	compositor/meta-window-group.h		\
-	compositor/meta-window-shape.c		\
-	compositor/meta-window-shape.h		\
-	compositor/region-utils.c		\
-	compositor/region-utils.h		\
-	meta/compositor.h			\
-	meta/meta-background-actor.h		\
-	meta/meta-plugin.h			\
-	meta/meta-shadow-factory.h		\
-	meta/meta-window-actor.h		\
-	meta/compositor-mutter.h 		\
-	core/above-tab-keycode.c		\
 	core/constraints.c			\
 	core/constraints.h			\
 	core/core.c				\
 	core/delete.c				\
 	core/display.c				\
 	core/display-private.h			\
-	meta/display.h				\
+	include/display.h			\
 	ui/draw-workspace.c			\
 	ui/draw-workspace.h			\
 	core/edge-resistance.c			\
 	core/edge-resistance.h			\
+	core/effects.c				\
+	core/effects.h				\
 	core/errors.c				\
-	meta/errors.h				\
+	include/errors.h			\
 	core/eventqueue.c			\
 	core/eventqueue.h			\
 	core/frame.c				\
-	core/frame.h				\
+	core/frame-private.h			\
+	include/frame.h				\
 	ui/gradient.c				\
-	meta/gradient.h				\
+	ui/gradient.h				\
 	core/group-private.h			\
 	core/group-props.c			\
 	core/group-props.h			\
 	core/group.c				\
-	meta/group.h				\
+	include/group.h				\
 	core/iconcache.c			\
 	core/iconcache.h			\
 	core/keybindings.c			\
 	core/keybindings-private.h		\
 	core/main.c				\
-	core/mutter-Xatomtype.h			\
+	include/main.h				\
+	core/mutter-Xatomtype.h		\
 	core/place.c				\
 	core/place.h				\
 	core/prefs.c				\
-	meta/prefs.h				\
+	include/prefs.h				\
 	core/screen.c				\
 	core/screen-private.h			\
-	meta/screen.h				\
+	include/screen.h			\
-	meta/types.h				\
+	include/types.h                         \
 	core/session.c				\
 	core/session.h				\
 	core/stack.c				\
@@ -116,20 +73,22 @@ libmutter_la_SOURCES =				\
 	core/stack-tracker.c			\
 	core/stack-tracker.h			\
 	core/util.c				\
-	meta/util.h				\
+	include/util.h				\
 	core/window-props.c			\
 	core/window-props.h			\
 	core/window.c				\
 	core/window-private.h			\
-	meta/window.h				\
+	include/window.h			\
 	core/workspace.c			\
 	core/workspace-private.h		\
 	core/xprops.c				\
-	core/xprops.h				\
+	include/xprops.h			\
-	meta/common.h				\
+	include/common.h			\
-	core/core.h				\
+	include/core.h				\
-	ui/ui.h					\
+	include/ui.h				\
 	inlinepixbufs.h				\
+	ui/fixedtip.c				\
+	ui/fixedtip.h				\
 	ui/frames.c				\
 	ui/frames.h				\
 	ui/menu.c				\
@@ -137,56 +96,81 @@ libmutter_la_SOURCES =				\
 	ui/metaaccellabel.c			\
 	ui/metaaccellabel.h			\
 	ui/resizepopup.c			\
-	ui/resizepopup.h			\
+	include/resizepopup.h			\
 	ui/tabpopup.c				\
-	ui/tabpopup.h				\
+	include/tabpopup.h				\
-	ui/tile-preview.c			\
-	ui/tile-preview.h			\
 	ui/theme-parser.c			\
+	ui/theme-parser.h			\
 	ui/theme.c				\
-	meta/theme.h				\
+	ui/theme.h				\
-	ui/theme-private.h			\
+	ui/themewidget.c			\
+	ui/themewidget.h			\
 	ui/ui.c					\
-	meta/preview-widget.h			\
+	include/all-keybindings.h
+
+if WITH_CLUTTER
+mutter_SOURCES += 					\
+	compositor/mutter/compositor-mutter.c		\
+	compositor/mutter/mutter-shaped-texture.c	\
+	compositor/mutter/mutter-shaped-texture.h	\
+	compositor/mutter/mutter-plugin-manager.c	\
+	compositor/mutter/mutter-plugin-manager.h	\
+	compositor/mutter/tidy/tidy-texture-frame.c	\
+	compositor/mutter/tidy/tidy-texture-frame.h	\
+	compositor/mutter/mutter-module.c		\
+	compositor/mutter/mutter-module.h		\
+	compositor/mutter/mutter-plugin.c		\
+	include/mutter-plugin.h				\
+	include/compositor-mutter.h
+endif
+
+# by setting libmutter_private_la_CFLAGS, the files shared with
+# mutter proper will be compiled with different names.
+libmutter_private_la_CFLAGS =
+libmutter_private_la_SOURCES=			\
+	core/boxes.c				\
+	include/boxes.h				\
+	ui/gradient.c				\
+	ui/gradient.h				\
+	core/util.c				\
+	include/util.h				\
+	include/common.h			\
 	ui/preview-widget.c			\
-	$(mutter_built_sources)
+	ui/preview-widget.h			\
+	ui/theme-parser.c			\
+	ui/theme-parser.h			\
+	ui/theme.c				\
+	ui/theme.h
 
-libmutter_la_LDFLAGS = -no-undefined
+libmutter_private_la_LDFLAGS = -no-undefined
-libmutter_la_LIBADD  = $(MUTTER_LIBS)
+libmutter_private_la_LIBADD  = @MUTTER_LIBS@
+
+libmutterincludedir = $(includedir)/mutter/mutter-private
 
-# Headers installed for plugins; introspected information will
-# be extracted into Mutter-<version>.gir
 libmutterinclude_base_headers =		\
-	meta/boxes.h				\
+	include/alttabhandler.h			\
-	meta/common.h				\
+	include/boxes.h				\
-	meta/compositor-mutter.h		\
+	ui/gradient.h				\
-	meta/compositor.h			\
+	include/util.h				\
-	meta/display.h				\
+	include/common.h			\
-	meta/errors.h				\
+	ui/preview-widget.h			\
-	meta/gradient.h				\
+	ui/theme-parser.h			\
-	meta/group.h				\
+	ui/theme.h				\
-	meta/keybindings.h			\
+	include/prefs.h				\
-	meta/main.h				\
+	include/window.h			\
-	meta/meta-background-actor.h		\
+	include/workspace.h			\
-	meta/meta-plugin.h			\
+	include/compositor.h			\
-	meta/meta-shaped-texture.h		\
+	include/compositor-mutter.h		\
-	meta/meta-shadow-factory.h		\
+	include/types.h				\
-	meta/meta-window-actor.h		\
+	include/screen.h			\
-	meta/prefs.h				\
+	include/display.h			\
-	meta/screen.h				\
+	include/group.h				\
-	meta/theme.h				\
+	include/keybindings.h			\
-	meta/types.h				\
+	include/mutter-plugin.h
-	meta/util.h				\
-	meta/window.h				\
-	meta/workspace.h
 
 # Excluded from scanning for introspection but installed
-# atomnames.h: macros cause problems for scanning process
 libmutterinclude_extra_headers =		\
-	meta/preview-widget.h			\
+	include/atomnames.h
-	meta/atomnames.h
-
-libmutterincludedir = $(includedir)/mutter/meta
 
 libmutterinclude_HEADERS =			\
 	$(libmutterinclude_base_headers)	\
@@ -197,18 +181,9 @@ mutter_theme_viewer_SOURCES=  \
 
 bin_PROGRAMS=mutter mutter-theme-viewer
 
-mutter_SOURCES = core/mutter.c
+api_version = $(MUTTER_MAJOR_VERSION).$(MUTTER_MINOR_VERSION)
-mutter_LDADD = $(MUTTER_LIBS) libmutter.la
-
-if HAVE_INTROSPECTION
-include $(INTROSPECTION_MAKEFILE)
-
-# Since we don't make any guarantees about stability and we don't support
-# parallel install, there's no real reason to change directories, filenames,
-# etc. as we change the Mutter tarball version.
-#api_version = $(MUTTER_MAJOR_VERSION).$(MUTTER_MINOR_VERSION)
-api_version = 3.0
 
+if WITH_INTROSPECTION
 # These files are in package-private directories, even though they may be used
 # by plugins.  If you're writing a plugin, use g-ir-compiler --add-include-path
 # and g-ir-compiler --includedir.
@@ -218,32 +193,44 @@ gir_DATA = Meta-$(api_version).gir
 typelibdir = $(pkglibdir)
 typelib_DATA = Meta-$(api_version).typelib
 
-INTROSPECTION_GIRS = Meta-$(api_version).gir
+# We need to strip out the attribute that would point back to libmutter-introspect
-
+# so that libgirepository looks for symbols in the executable instead
-Meta-$(api_version).gir: libmutter.la
+Meta-$(api_version).gir: $(G_IR_SCANNER) mutter $(libmutterinclude_HEADERS) $(mutter_SOURCES)
-@META_GIR@_INCLUDES = GObject-2.0 GDesktopEnums-3.0 Gdk-3.0 Gtk-3.0 Clutter-1.0 xlib-2.0 xfixes-4.0
+	$(G_IR_SCANNER)					\
-@META_GIR@_EXPORT_PACKAGES = libmutter
+		--namespace=Meta			\
-@META_GIR@_CFLAGS = $(INCLUDES)
+		--nsversion=$(api_version)		\
-@META_GIR@_LIBS = libmutter.la
+		--include=GObject-2.0			\
-@META_GIR@_FILES =				\
+		--include=Gdk-2.0			\
-	mutter-enum-types.h			\
+		--include=Gtk-2.0			\
-	$(libmutterinclude_base_headers)	\
+		--include=Clutter-0.9			\
-	$(filter %.c,$(libmutter_la_SOURCES))
+		--pkg=clutter-0.9			\
-@META_GIR@_SCANNERFLAGS = --warn-all --warn-error
+		--pkg=gtk+-2.0				\
+		--include=xfixes-4.0			\
+		--program=./mutter			\
+		$(filter %.c,$(mutter_SOURCES))	\
+		$(libmutterinclude_base_headers)	\
+		$(INCLUDES)				\
+		-o $@
 
+Meta-$(api_version).typelib: $(G_IR_COMPILER) Meta-$(api_version).gir
+	LD_LIBRARY_PATH=$${LD_LIBRARY_PATH:+$$LD_LIBRARY_PATH:}. $(G_IR_COMPILER) Meta-$(api_version).gir -o $@
 endif
 
-mutter_theme_viewer_LDADD= $(MUTTER_LIBS) libmutter.la
+EFENCE=
+mutter_LDADD=@MUTTER_LIBS@ libmutter-private.la $(EFENCE)
+mutter_LDFLAGS=-export-dynamic
 
-testboxes_SOURCES = core/testboxes.c
+mutter_theme_viewer_LDADD= @MUTTER_LIBS@ libmutter-private.la
-testgradient_SOURCES = ui/testgradient.c
+
-testasyncgetprop_SOURCES = core/testasyncgetprop.c
+testboxes_SOURCES=include/util.h core/util.c include/boxes.h core/boxes.c core/testboxes.c
+testgradient_SOURCES=ui/gradient.h ui/gradient.c ui/testgradient.c
+testasyncgetprop_SOURCES=core/async-getprop.h core/async-getprop.c core/testasyncgetprop.c
 
 noinst_PROGRAMS=testboxes testgradient testasyncgetprop
 
-testboxes_LDADD = $(MUTTER_LIBS) libmutter.la
+testboxes_LDADD= @MUTTER_LIBS@ libmutter-private.la
-testgradient_LDADD = $(MUTTER_LIBS) libmutter.la
+testgradient_LDADD= @MUTTER_LIBS@ libmutter-private.la
-testasyncgetprop_LDADD = $(MUTTER_LIBS) libmutter.la
+testasyncgetprop_LDADD= @MUTTER_LIBS@ libmutter-private.la
 
 @INTLTOOL_DESKTOP_RULE@
 
@@ -257,17 +244,20 @@ wmproperties_in_files=mutter-wm.desktop.in
 wmproperties_files=$(wmproperties_in_files:.desktop.in=.desktop)
 wmproperties_DATA = $(wmproperties_files)
 
-xmldir       = @GNOME_KEYBINDINGS_KEYSDIR@
+schemadir   = @GCONF_SCHEMA_FILE_DIR@
-xml_in_files = \
+schema_in_files = mutter.schemas.in
-        50-mutter-windows.xml.in
+schema_DATA = $(schema_in_files:.schemas.in=.schemas)
-xml_DATA     = $(xml_in_files:.xml.in=.xml)
 
-gsettings_SCHEMAS = org.gnome.mutter.gschema.xml
 @INTLTOOL_XML_NOMERGE_RULE@
-@GSETTINGS_RULES@
 
-convertdir = $(datadir)/GConf/gsettings
+@INTLTOOL_SCHEMAS_RULE@
-convert_DATA = mutter-schemas.convert
+
+if GCONF_SCHEMAS_INSTALL
+install-data-local:
+	GCONF_CONFIG_SOURCE=$(GCONF_SCHEMA_CONFIG_SOURCE) $(GCONFTOOL) --makefile-install-rule $(schema_DATA)
+else
+install-data-local:
+endif
 
 IMAGES=stock_maximize.png stock_minimize.png stock_delete.png
 VARIABLES=stock_maximize_data $(srcdir)/stock_maximize.png \
@@ -275,55 +265,21 @@ VARIABLES=stock_maximize_data $(srcdir)/stock_maximize.png \
           stock_delete_data $(srcdir)/stock_delete.png
 
 BUILT_SOURCES = inlinepixbufs.h
-CLEANFILES =					\
+CLEANFILES = inlinepixbufs.h mutter.desktop mutter-wm.desktop mutter.schemas
-	inlinepixbufs.h				\
-	mutter.desktop				\
-	mutter-wm.desktop			\
-	org.gnome.mutter.gschema.xml		\
-	$(xml_DATA)				\
-	$(mutter_built_sources)			\
-	$(typelib_DATA)				\
-	$(gir_DATA)
 
 inlinepixbufs.h: $(IMAGES)
 	$(GDK_PIXBUF_CSOURCE) --raw --build-list $(VARIABLES) >$(srcdir)/inlinepixbufs.h
 
 pkgconfigdir = $(libdir)/pkgconfig
 
-pkgconfig_DATA = libmutter.pc mutter-plugins.pc
+pkgconfig_DATA = libmutter-private.pc mutter-plugins.pc
 
 EXTRA_DIST=$(desktopfiles_files) 	\
 	$(wmproperties_files)		\
-	$(IMAGES) 			\
+	$(IMAGES) $(schema_DATA) 	\
 	$(desktopfiles_in_files)	\
 	$(wmproperties_in_files)	\
-	$(xml_in_files)			\
+	$(schema_in_files)		\
-	org.gnome.mutter.gschema.xml.in \
+	libmutter-private.pc.in	\
-	mutter-schemas.convert \
+	mutter-plugins.pc.in
-	libmutter.pc.in \
-	mutter-plugins.pc.in  \
-	mutter-enum-types.h.in \
-	mutter-enum-types.c.in
 
-BUILT_SOURCES += $(mutter_built_sources)
-MUTTER_STAMP_FILES = stamp-mutter-enum-types.h
-CLEANFILES += $(MUTTER_STAMP_FILES)
-
-mutter-enum-types.h: stamp-mutter-enum-types.h Makefile
-	@true
-stamp-mutter-enum-types.h: $(libmutterinclude_base_headers) mutter-enum-types.h.in
-	$(AM_V_GEN) ( cd $(srcdir) && \
-	  $(GLIB_MKENUMS) \
-	    --template mutter-enum-types.h.in \
-	  $(libmutterinclude_base_headers) ) >> xgen-teth && \
-	(cmp -s xgen-teth mutter-enum-types.h || cp xgen-teth mutter-enum-types.h) && \
-	rm -f xgen-teth && \
-	echo timestamp > $(@F)
-
-mutter-enum-types.c: stamp-mutter-enum-types.h mutter-enum-types.c.in
-	  $(AM_V_GEN) ( cd $(srcdir) && \
-	  $(GLIB_MKENUMS) \
-	    --template mutter-enum-types.c.in \
-	  $(libmutterinclude_base_headers) ) >> xgen-tetc && \
-	cp xgen-tetc mutter-enum-types.c && \
-	rm -f xgen-tetc

src/compositor/cogl-utils.c

@@ -1,110 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-/*
- * Utilities for use with Cogl
- *
- * Copyright 2010 Red Hat, Inc.
- * Copyright 2010 Intel Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#include "cogl-utils.h"
-
-/**
- * meta_create_color_texture_4ub:
- * @red:
- * @green:
- * @blue:
- * @alpha:
- * @flags: Optional flags for the texture, or %COGL_TEXTURE_NONE;
- *   %COGL_TEXTURE_NO_SLICING is useful if the texture will be
- *   repeated to create a constant color fill, since hardware
- *   repeat can't be used for a sliced texture.
- *
- * Creates a texture that is a single pixel with the specified
- * unpremultiplied color components.
- *
- * Return value: (transfer full): a newly created Cogl texture
- */
-CoglHandle
-meta_create_color_texture_4ub (guint8           red,
-                               guint8           green,
-                               guint8           blue,
-                               guint8           alpha,
-                               CoglTextureFlags flags)
-{
-  CoglColor color;
-  guint8 pixel[4];
-
-  cogl_color_set_from_4ub (&color, red, green, blue, alpha);
-  cogl_color_premultiply (&color);
-
-  pixel[0] = cogl_color_get_red_byte (&color);
-  pixel[1] = cogl_color_get_green_byte (&color);
-  pixel[2] = cogl_color_get_blue_byte (&color);
-  pixel[3] = cogl_color_get_alpha_byte (&color);
-
-  return cogl_texture_new_from_data (1, 1,
-                                     flags,
-                                     COGL_PIXEL_FORMAT_RGBA_8888_PRE,
-                                     COGL_PIXEL_FORMAT_ANY,
-                                     4, pixel);
-}
-
-
-/* Based on gnome-shell/src/st/st-private.c:_st_create_texture_material.c */
-
-/**
- * meta_create_texture_material:
- * @src_texture: (allow-none): texture to use initially for the layer
- *
- * Creates a material with a single layer. Using a common template
- * allows sharing a shader for different uses in Mutter. To share the same
- * shader with all other materials that are just texture plus opacity
- * would require Cogl fixes.
- * (See http://bugzilla.clutter-project.org/show_bug.cgi?id=2425)
- *
- * Return value: (transfer full): a newly created Cogl material
- */
-CoglHandle
-meta_create_texture_material (CoglHandle src_texture)
-{
-  static CoglHandle texture_material_template = COGL_INVALID_HANDLE;
-  CoglHandle material;
-
-  /* We use a material that has a dummy texture as a base for all
-     texture materials. The idea is that only the Cogl texture object
-     would be different in the children so it is likely that Cogl will
-     be able to share GL programs between all the textures. */
-  if (G_UNLIKELY (texture_material_template == COGL_INVALID_HANDLE))
-    {
-      CoglHandle dummy_texture;
-
-      dummy_texture = meta_create_color_texture_4ub (0xff, 0xff, 0xff, 0xff,
-                                                     COGL_TEXTURE_NONE);
-
-      texture_material_template = cogl_material_new ();
-      cogl_material_set_layer (texture_material_template, 0, dummy_texture);
-      cogl_handle_unref (dummy_texture);
-    }
-
-  material = cogl_material_copy (texture_material_template);
-
-  if (src_texture != COGL_INVALID_HANDLE)
-    cogl_material_set_layer (material, 0, src_texture);
-
-  return material;
-}

src/compositor/compositor-private.h

@@ -1,71 +1,90 @@
 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
 
+/*
+ * Copyright (C) 2008 Iain Holmes
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
 #ifndef META_COMPOSITOR_PRIVATE_H
 #define META_COMPOSITOR_PRIVATE_H
 
-#include <X11/extensions/Xfixes.h>
+#include "compositor.h"
-
-#include <meta/compositor.h>
-#include <meta/display.h>
-#include "meta-plugin-manager.h"
-#include "meta-window-actor-private.h"
-#include <clutter/clutter.h>
-
-typedef struct _MetaCompScreen MetaCompScreen;
 
 struct _MetaCompositor
 {
-  MetaDisplay    *display;
+  void (* destroy) (MetaCompositor *compositor);
 
-  Atom            atom_x_root_pixmap;
+  void (*manage_screen) (MetaCompositor *compositor,
-  Atom            atom_x_set_root;
+                         MetaScreen     *screen);
-  Atom            atom_net_wm_window_opacity;
+  void (*unmanage_screen) (MetaCompositor *compositor,
-  guint           repaint_func_id;
+                           MetaScreen     *screen);
-
+  void (*add_window) (MetaCompositor    *compositor,
-  ClutterActor   *shadow_src;
+                      MetaWindow        *window);
-
+  void (*remove_window) (MetaCompositor *compositor,
-  MetaPlugin     *modal_plugin;
+                         MetaWindow     *window);
-
+  void (*set_updates) (MetaCompositor *compositor,
-  gboolean        show_redraw : 1;
+                       MetaWindow     *window,
-  gboolean        debug       : 1;
+                       gboolean        update);
-  gboolean        no_mipmaps  : 1;
+  gboolean (*process_event) (MetaCompositor *compositor,
+                             XEvent         *event,
+                             MetaWindow     *window);
+  Pixmap (*get_window_pixmap) (MetaCompositor *compositor,
+                               MetaWindow     *window);
+  void (*set_active_window) (MetaCompositor *compositor,
+                             MetaScreen     *screen,
+                             MetaWindow     *window);
+  void (*map_window) (MetaCompositor *compositor,
+                      MetaWindow     *window);
+  void (*unmap_window) (MetaCompositor *compositor,
+			MetaWindow     *window);
+  void (*minimize_window) (MetaCompositor *compositor,
+                           MetaWindow     *window,
+			   MetaRectangle  *window_rect,
+			   MetaRectangle  *icon_rect);
+  void (*unminimize_window) (MetaCompositor *compositor,
+			     MetaWindow     *window,
+			     MetaRectangle  *window_rect,
+			     MetaRectangle  *icon_rect);
+  void (*maximize_window) (MetaCompositor    *compositor,
+                           MetaWindow        *window,
+			   MetaRectangle     *window_rect);
+  void (*unmaximize_window) (MetaCompositor    *compositor,
+                             MetaWindow        *window,
+			     MetaRectangle     *window_rect);
+  void (*update_workspace_geometry) (MetaCompositor *compositor,
+                                     MetaWorkspace   *workspace);
+  void (*switch_workspace) (MetaCompositor     *compositor,
+                            MetaScreen         *screen,
+                            MetaWorkspace      *from,
+                            MetaWorkspace      *to,
+                            MetaMotionDirection direction);
+  void (*sync_stack) (MetaCompositor *compositor,
+		      MetaScreen     *screen,
+		      GList	     *stack);
+  void (*set_window_hidden) (MetaCompositor *compositor,
+			     MetaScreen	    *screen,
+			     MetaWindow	    *window,
+			     gboolean	     hidden);
+  void (*sync_window_geometry) (MetaCompositor	*compositor,
+				MetaWindow	*window);
+  void (*sync_screen_size) (MetaCompositor *compositor,
+			    MetaScreen	   *screen,
+			    guint	    width,
+			    guint	    height);
 };
 
-struct _MetaCompScreen
+#endif
-{
-  MetaScreen            *screen;
-
-  ClutterActor          *stage, *window_group, *overlay_group;
-  ClutterActor          *background_actor;
-  ClutterActor		*hidden_group;
-  GList                 *windows;
-  GHashTable            *windows_by_xid;
-  Window                 output;
-
-  /* Used for unredirecting fullscreen windows */
-  guint                   disable_unredirect_count;
-  MetaWindowActor             *unredirected_window;
-
-  /* Before we create the output window */
-  XserverRegion     pending_input_region;
-
-  gint                   switch_workspace_in_progress;
-
-  MetaPluginManager *plugin_mgr;
-};
-
-void meta_switch_workspace_completed (MetaScreen    *screen);
-
-gboolean meta_begin_modal_for_plugin (MetaScreen       *screen,
-                                      MetaPlugin       *plugin,
-                                      Window            grab_window,
-                                      Cursor            cursor,
-                                      MetaModalOptions  options,
-                                      guint32           timestamp);
-void     meta_end_modal_for_plugin   (MetaScreen       *screen,
-                                      MetaPlugin       *plugin,
-                                      guint32           timestamp);
-
-void meta_check_end_modal (MetaScreen *screen);
-
-#endif /* META_COMPOSITOR_PRIVATE_H */

src/compositor/compositor-xrender.h

@@ -1,10 +1,10 @@
 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
 
-/* Meta tile preview */
+/* 
-
+ * Copyright (C) 2007 Iain Holmes
-/*
+ * Based on xcompmgr - (c) 2003 Keith Packard
- * Copyright (C) 2010 Florian Müllner
+ *          xfwm4    - (c) 2005-2007 Olivier Fourdan
- *
+ * 
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
  * published by the Free Software Foundation; either version 2 of the
@@ -14,25 +14,18 @@
  * WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * General Public License for more details.
- *
+ * 
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  * 02111-1307, USA.
  */
-#ifndef META_TILE_PREVIEW_H
-#define META_TILE_PREVIEW_H
 
-#include <meta/boxes.h>
+#ifndef META_COMPOSITOR_XRENDER_H_
+#define META_COMPOSITOR_XRENDER_H_
 
-typedef struct _MetaTilePreview MetaTilePreview;
+#include "types.h"
 
-MetaTilePreview   *meta_tile_preview_new    (int                screen_number);
+MetaCompositor *meta_compositor_xrender_new (MetaDisplay *display);
-void               meta_tile_preview_free   (MetaTilePreview   *preview);
-void               meta_tile_preview_show   (MetaTilePreview   *preview,
-                                             MetaRectangle     *rect);
-void               meta_tile_preview_hide   (MetaTilePreview   *preview);
-Window             meta_tile_preview_get_xwindow (MetaTilePreview   *preview,
-                                                  gulong            *create_serial);
 
-#endif /* META_TILE_PREVIEW_H */
+#endif

src/compositor/meta-background-actor-private.h

@@ -1,15 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
-#ifndef META_BACKGROUND_ACTOR_PRIVATE_H
-#define META_BACKGROUND_ACTOR_PRIVATE_H
-
-#include <meta/screen.h>
-#include <meta/meta-background-actor.h>
-
-void meta_background_actor_set_visible_region  (MetaBackgroundActor *self,
-                                                cairo_region_t      *visible_region);
-
-void meta_background_actor_update              (MetaScreen *screen);
-void meta_background_actor_screen_size_changed (MetaScreen *screen);
-
-#endif /* META_BACKGROUND_ACTOR_PRIVATE_H */

src/compositor/meta-background-actor.c

@@ -1,627 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-/*
- * meta-background-actor.c: Actor for painting the root window background
- *
- * Copyright 2009 Sander Dijkhuis
- * Copyright 2010 Red Hat, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- *
- * Portions adapted from gnome-shell/src/shell-global.c
- */
-
-#include <config.h>
-
-#define COGL_ENABLE_EXPERIMENTAL_API
-#include <cogl/cogl-texture-pixmap-x11.h>
-
-#define CLUTTER_ENABLE_EXPERIMENTAL_API
-#include <clutter/clutter.h>
-
-#include <X11/Xatom.h>
-
-#include "cogl-utils.h"
-#include "compositor-private.h"
-#include <meta/errors.h>
-#include "meta-background-actor-private.h"
-
-/* We allow creating multiple MetaBackgroundActors for the same MetaScreen to
- * allow different rendering options to be set for different copies.
- * But we want to share the same underlying CoglTexture for efficiency and
- * to avoid driver bugs that might occur if we created multiple CoglTexturePixmaps
- * for the same pixmap.
- *
- * This structure holds common information.
- */
-typedef struct _MetaScreenBackground MetaScreenBackground;
-
-struct _MetaScreenBackground
-{
-  MetaScreen *screen;
-  GSList *actors;
-
-  float texture_width;
-  float texture_height;
-  CoglHandle texture;
-  CoglMaterialWrapMode wrap_mode;
-  guint have_pixmap : 1;
-};
-
-struct _MetaBackgroundActorPrivate
-{
-  MetaScreenBackground *background;
-  CoglHandle material;
-  cairo_region_t *visible_region;
-  float dim_factor;
-};
-
-enum
-{
-  PROP_0,
-
-  PROP_DIM_FACTOR,
-
-  PROP_LAST
-};
-
-static GParamSpec *obj_props[PROP_LAST];
-
-G_DEFINE_TYPE (MetaBackgroundActor, meta_background_actor, CLUTTER_TYPE_ACTOR);
-
-static void set_texture                (MetaScreenBackground *background,
-                                        CoglHandle            texture);
-static void set_texture_to_stage_color (MetaScreenBackground *background);
-
-static void
-on_notify_stage_color (GObject              *stage,
-                       GParamSpec           *pspec,
-                       MetaScreenBackground *background)
-{
-  if (!background->have_pixmap)
-    set_texture_to_stage_color (background);
-}
-
-static void
-free_screen_background (MetaScreenBackground *background)
-{
-  set_texture (background, COGL_INVALID_HANDLE);
-
-  if (background->screen != NULL)
-    {
-      ClutterActor *stage = meta_get_stage_for_screen (background->screen);
-      g_signal_handlers_disconnect_by_func (stage,
-                                            (gpointer) on_notify_stage_color,
-                                            background);
-      background->screen = NULL;
-    }
-}
-
-static MetaScreenBackground *
-meta_screen_background_get (MetaScreen *screen)
-{
-  MetaScreenBackground *background;
-
-  background = g_object_get_data (G_OBJECT (screen), "meta-screen-background");
-  if (background == NULL)
-    {
-      ClutterActor *stage;
-
-      background = g_new0 (MetaScreenBackground, 1);
-
-      background->screen = screen;
-      g_object_set_data_full (G_OBJECT (screen), "meta-screen-background",
-                              background, (GDestroyNotify) free_screen_background);
-
-      stage = meta_get_stage_for_screen (screen);
-      g_signal_connect (stage, "notify::color",
-                        G_CALLBACK (on_notify_stage_color), background);
-
-      meta_background_actor_update (screen);
-    }
-
-  return background;
-}
-
-static void
-update_wrap_mode_of_actor (MetaBackgroundActor *self)
-{
-  MetaBackgroundActorPrivate *priv = self->priv;
-
-  cogl_material_set_layer_wrap_mode (priv->material, 0, priv->background->wrap_mode);
-}
-
-static void
-update_wrap_mode (MetaScreenBackground *background)
-{
-  GSList *l;
-  int width, height;
-
-  meta_screen_get_size (background->screen, &width, &height);
-
-  /* We turn off repeating when we have a full-screen pixmap to keep from
-   * getting artifacts from one side of the image sneaking into the other
-   * side of the image via bilinear filtering.
-   */
-  if (width == background->texture_width && height == background->texture_height)
-    background->wrap_mode = COGL_MATERIAL_WRAP_MODE_CLAMP_TO_EDGE;
-  else
-    background->wrap_mode = COGL_MATERIAL_WRAP_MODE_REPEAT;
-
-  for (l = background->actors; l; l = l->next)
-    update_wrap_mode_of_actor (l->data);
-}
-
-static void
-set_texture_on_actor (MetaBackgroundActor *self)
-{
-  MetaBackgroundActorPrivate *priv = self->priv;
-  MetaDisplay *display = meta_screen_get_display (priv->background->screen);
-
-  /* This may trigger destruction of an old texture pixmap, which, if
-   * the underlying X pixmap is already gone has the tendency to trigger
-   * X errors inside DRI. For safety, trap errors */
-  meta_error_trap_push (display);
-  cogl_material_set_layer (priv->material, 0, priv->background->texture);
-  meta_error_trap_pop (display);
-
-  clutter_actor_queue_redraw (CLUTTER_ACTOR (self));
-}
-
-static void
-set_texture (MetaScreenBackground *background,
-             CoglHandle            texture)
-{
-  MetaDisplay *display = meta_screen_get_display (background->screen);
-  GSList *l;
-
-  /* This may trigger destruction of an old texture pixmap, which, if
-   * the underlying X pixmap is already gone has the tendency to trigger
-   * X errors inside DRI. For safety, trap errors */
-  meta_error_trap_push (display);
-  if (background->texture != COGL_INVALID_HANDLE)
-    {
-      cogl_handle_unref (background->texture);
-      background->texture = COGL_INVALID_HANDLE;
-    }
-  meta_error_trap_pop (display);
-
-  if (texture != COGL_INVALID_HANDLE)
-    background->texture = cogl_handle_ref (texture);
-
-  background->texture_width = cogl_texture_get_width (background->texture);
-  background->texture_height = cogl_texture_get_height (background->texture);
-
-  for (l = background->actors; l; l = l->next)
-    set_texture_on_actor (l->data);
-
-  update_wrap_mode (background);
-}
-
-/* Sets our material to paint with a 1x1 texture of the stage's background
- * color; doing this when we have no pixmap allows the application to turn
- * off painting the stage. There might be a performance benefit to
- * painting in this case with a solid color, but the normal solid color
- * case is a 1x1 root pixmap, so we'd have to reverse-engineer that to
- * actually pick up the (small?) performance win. This is just a fallback.
- */
-static void
-set_texture_to_stage_color (MetaScreenBackground *background)
-{
-  ClutterActor *stage = meta_get_stage_for_screen (background->screen);
-  ClutterColor color;
-  CoglHandle texture;
-
-  clutter_stage_get_color (CLUTTER_STAGE (stage), &color);
-
-  /* Slicing will prevent COGL from using hardware texturing for
-   * the tiled 1x1 pixmap, and will cause it to draw the window
-   * background in millions of separate 1x1 rectangles */
-  texture = meta_create_color_texture_4ub (color.red, color.green,
-                                           color.blue, 0xff,
-                                           COGL_TEXTURE_NO_SLICING);
-  set_texture (background, texture);
-  cogl_handle_unref (texture);
-}
-
-static void
-meta_background_actor_dispose (GObject *object)
-{
-  MetaBackgroundActor *self = META_BACKGROUND_ACTOR (object);
-  MetaBackgroundActorPrivate *priv = self->priv;
-
-  meta_background_actor_set_visible_region (self, NULL);
-
-  if (priv->background != NULL)
-    {
-      priv->background->actors = g_slist_remove (priv->background->actors, self);
-      priv->background = NULL;
-    }
-
-  if (priv->material != COGL_INVALID_HANDLE)
-    {
-      cogl_handle_unref (priv->material);
-      priv->material = COGL_INVALID_HANDLE;
-    }
-
-  G_OBJECT_CLASS (meta_background_actor_parent_class)->dispose (object);
-}
-
-static void
-meta_background_actor_get_preferred_width (ClutterActor *actor,
-                                           gfloat        for_height,
-                                           gfloat       *min_width_p,
-                                           gfloat       *natural_width_p)
-{
-  MetaBackgroundActor *self = META_BACKGROUND_ACTOR (actor);
-  MetaBackgroundActorPrivate *priv = self->priv;
-  int width, height;
-
-  meta_screen_get_size (priv->background->screen, &width, &height);
-
-  if (min_width_p)
-    *min_width_p = width;
-  if (natural_width_p)
-    *natural_width_p = width;
-}
-
-static void
-meta_background_actor_get_preferred_height (ClutterActor *actor,
-                                            gfloat        for_width,
-                                            gfloat       *min_height_p,
-                                            gfloat       *natural_height_p)
-
-{
-  MetaBackgroundActor *self = META_BACKGROUND_ACTOR (actor);
-  MetaBackgroundActorPrivate *priv = self->priv;
-  int width, height;
-
-  meta_screen_get_size (priv->background->screen, &width, &height);
-
-  if (min_height_p)
-    *min_height_p = height;
-  if (natural_height_p)
-    *natural_height_p = height;
-}
-
-static void
-meta_background_actor_paint (ClutterActor *actor)
-{
-  MetaBackgroundActor *self = META_BACKGROUND_ACTOR (actor);
-  MetaBackgroundActorPrivate *priv = self->priv;
-  guint8 opacity = clutter_actor_get_paint_opacity (actor);
-  guint8 color_component;
-  int width, height;
-
-  meta_screen_get_size (priv->background->screen, &width, &height);
-
-  color_component = (int)(0.5 + opacity * priv->dim_factor);
-
-  cogl_material_set_color4ub (priv->material,
-                              color_component,
-                              color_component,
-                              color_component,
-                              opacity);
-
-  cogl_set_source (priv->material);
-
-  if (priv->visible_region)
-    {
-      int n_rectangles = cairo_region_num_rectangles (priv->visible_region);
-      int i;
-
-      for (i = 0; i < n_rectangles; i++)
-        {
-          cairo_rectangle_int_t rect;
-          cairo_region_get_rectangle (priv->visible_region, i, &rect);
-
-          cogl_rectangle_with_texture_coords (rect.x, rect.y,
-                                              rect.x + rect.width, rect.y + rect.height,
-                                              rect.x / priv->background->texture_width,
-                                              rect.y / priv->background->texture_height,
-                                              (rect.x + rect.width) / priv->background->texture_width,
-                                              (rect.y + rect.height) / priv->background->texture_height);
-        }
-    }
-  else
-    {
-      cogl_rectangle_with_texture_coords (0.0f, 0.0f,
-                                          width, height,
-                                          0.0f, 0.0f,
-                                          width / priv->background->texture_width,
-                                          height / priv->background->texture_height);
-    }
-}
-
-static gboolean
-meta_background_actor_get_paint_volume (ClutterActor       *actor,
-                                        ClutterPaintVolume *volume)
-{
-  MetaBackgroundActor *self = META_BACKGROUND_ACTOR (actor);
-  MetaBackgroundActorPrivate *priv = self->priv;
-  int width, height;
-
-  meta_screen_get_size (priv->background->screen, &width, &height);
-
-  clutter_paint_volume_set_width (volume, width);
-  clutter_paint_volume_set_height (volume, height);
-
-  return TRUE;
-}
-
-static void
-meta_background_actor_set_dim_factor (MetaBackgroundActor *self,
-                                      gfloat               dim_factor)
-{
-  MetaBackgroundActorPrivate *priv = self->priv;
-
-  if (priv->dim_factor == dim_factor)
-    return;
-
-  priv->dim_factor = dim_factor;
-
-  clutter_actor_queue_redraw (CLUTTER_ACTOR (self));
-
-  g_object_notify_by_pspec (G_OBJECT (self), obj_props[PROP_DIM_FACTOR]);
-}
-
-static void
-meta_background_actor_get_property(GObject         *object,
-                                   guint            prop_id,
-                                   GValue          *value,
-                                   GParamSpec      *pspec)
-{
-  MetaBackgroundActor *self = META_BACKGROUND_ACTOR (object);
-  MetaBackgroundActorPrivate *priv = self->priv;
-
-  switch (prop_id)
-    {
-    case PROP_DIM_FACTOR:
-      g_value_set_float (value, priv->dim_factor);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-meta_background_actor_set_property(GObject         *object,
-                                   guint            prop_id,
-                                   const GValue    *value,
-                                   GParamSpec      *pspec)
-{
-  MetaBackgroundActor *self = META_BACKGROUND_ACTOR (object);
-
-  switch (prop_id)
-    {
-    case PROP_DIM_FACTOR:
-      meta_background_actor_set_dim_factor (self, g_value_get_float (value));
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-meta_background_actor_class_init (MetaBackgroundActorClass *klass)
-{
-  GObjectClass *object_class = G_OBJECT_CLASS (klass);
-  ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
-  GParamSpec *pspec;
-
-  g_type_class_add_private (klass, sizeof (MetaBackgroundActorPrivate));
-
-  object_class->dispose = meta_background_actor_dispose;
-  object_class->get_property = meta_background_actor_get_property;
-  object_class->set_property = meta_background_actor_set_property;
-
-  actor_class->get_preferred_width = meta_background_actor_get_preferred_width;
-  actor_class->get_preferred_height = meta_background_actor_get_preferred_height;
-  actor_class->paint = meta_background_actor_paint;
-  actor_class->get_paint_volume = meta_background_actor_get_paint_volume;
-
-  /**
-   * MetaBackgroundActor:dim-factor:
-   *
-   * Factor to dim the background by, between 0.0 (black) and 1.0 (original
-   * colors)
-   */
-  pspec = g_param_spec_float ("dim-factor",
-                              "Dim factor",
-                              "Factor to dim the background by",
-                              0.0, 1.0,
-                              1.0,
-                              G_PARAM_READWRITE);
-  obj_props[PROP_DIM_FACTOR] = pspec;
-  g_object_class_install_property (object_class, PROP_DIM_FACTOR, pspec);
-}
-
-static void
-meta_background_actor_init (MetaBackgroundActor *self)
-{
-  MetaBackgroundActorPrivate *priv;
-
-  priv = self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
-                                                   META_TYPE_BACKGROUND_ACTOR,
-                                                   MetaBackgroundActorPrivate);
-  priv->dim_factor = 1.0;
-}
-
-/**
- * meta_background_actor_new:
- * @screen: the #MetaScreen
- *
- * Creates a new actor to draw the background for the given screen.
- *
- * Return value: the newly created background actor
- */
-ClutterActor *
-meta_background_actor_new_for_screen (MetaScreen *screen)
-{
-  MetaBackgroundActor *self;
-  MetaBackgroundActorPrivate *priv;
-
-  g_return_val_if_fail (META_IS_SCREEN (screen), NULL);
-
-  self = g_object_new (META_TYPE_BACKGROUND_ACTOR, NULL);
-  priv = self->priv;
-
-  priv->background = meta_screen_background_get (screen);
-  priv->background->actors = g_slist_prepend (priv->background->actors, self);
-
-  priv->material = meta_create_texture_material (NULL);
-
-  set_texture_on_actor (self);
-  update_wrap_mode_of_actor (self);
-
-  return CLUTTER_ACTOR (self);
-}
-
-/**
- * meta_background_actor_update:
- * @screen: a #MetaScreen
- *
- * Refetches the _XROOTPMAP_ID property for the root window and updates
- * the contents of the background actor based on that. There's no attempt
- * to optimize out pixmap values that don't change (since a root pixmap
- * could be replaced by with another pixmap with the same ID under some
- * circumstances), so this should only be called when we actually receive
- * a PropertyNotify event for the property.
- */
-void
-meta_background_actor_update (MetaScreen *screen)
-{
-  MetaScreenBackground *background;
-  MetaDisplay *display;
-  MetaCompositor *compositor;
-  Atom type;
-  int format;
-  gulong nitems;
-  gulong bytes_after;
-  guchar *data;
-  Pixmap root_pixmap_id;
-
-  background = meta_screen_background_get (screen);
-  display = meta_screen_get_display (screen);
-  compositor = meta_display_get_compositor (display);
-
-  root_pixmap_id = None;
-  if (!XGetWindowProperty (meta_display_get_xdisplay (display),
-                           meta_screen_get_xroot (screen),
-                           compositor->atom_x_root_pixmap,
-                           0, LONG_MAX,
-                           False,
-                           AnyPropertyType,
-                           &type, &format, &nitems, &bytes_after, &data) &&
-      type != None)
-  {
-     /* Got a property. */
-     if (type == XA_PIXMAP && format == 32 && nitems == 1)
-       {
-         /* Was what we expected. */
-         root_pixmap_id = *(Pixmap *)data;
-       }
-
-     XFree(data);
-  }
-
-  if (root_pixmap_id != None)
-    {
-      CoglHandle texture;
-      CoglContext *ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
-      GError *error = NULL;
-
-      meta_error_trap_push (display);
-      texture = cogl_texture_pixmap_x11_new (ctx, root_pixmap_id, FALSE, &error);
-      meta_error_trap_pop (display);
-
-      if (texture != COGL_INVALID_HANDLE)
-        {
-          set_texture (background, texture);
-          cogl_handle_unref (texture);
-
-          background->have_pixmap = True;
-          return;
-        }
-      else
-        {
-          g_warning ("Failed to create background texture from pixmap: %s",
-                     error->message);
-          g_error_free (error);
-        }
-    }
-
-  background->have_pixmap = False;
-  set_texture_to_stage_color (background);
-}
-
-/**
- * meta_background_actor_set_visible_region:
- * @self: a #MetaBackgroundActor
- * @visible_region: (allow-none): the area of the actor (in allocate-relative
- *   coordinates) that is visible.
- *
- * Sets the area of the background that is unobscured by overlapping windows.
- * This is used to optimize and only paint the visible portions.
- */
-void
-meta_background_actor_set_visible_region (MetaBackgroundActor *self,
-                                          cairo_region_t      *visible_region)
-{
-  MetaBackgroundActorPrivate *priv;
-
-  g_return_if_fail (META_IS_BACKGROUND_ACTOR (self));
-
-  priv = self->priv;
-
-  if (priv->visible_region)
-    {
-      cairo_region_destroy (priv->visible_region);
-      priv->visible_region = NULL;
-    }
-
-  if (visible_region)
-    {
-      cairo_rectangle_int_t screen_rect = { 0 };
-      meta_screen_get_size (priv->background->screen, &screen_rect.width, &screen_rect.height);
-
-      /* Doing the intersection here is probably unnecessary - MetaWindowGroup
-       * should never compute a visible area that's larger than the root screen!
-       * but it's not that expensive and adds some extra robustness.
-       */
-      priv->visible_region = cairo_region_create_rectangle (&screen_rect);
-      cairo_region_intersect (priv->visible_region, visible_region);
-    }
-}
-
-/**
- * meta_background_actor_screen_size_changed:
- * @screen: a #MetaScreen
- *
- * Called by the compositor when the size of the #MetaScreen changes
- */
-void
-meta_background_actor_screen_size_changed (MetaScreen *screen)
-{
-  MetaScreenBackground *background = meta_screen_background_get (screen);
-  GSList *l;
-
-  update_wrap_mode (background);
-
-  for (l = background->actors; l; l = l->next)
-    clutter_actor_queue_relayout (l->data);
-}

src/compositor/meta-plugin-manager.c

@@ -1,312 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
-/*
- * Copyright (c) 2008 Intel Corp.
- *
- * Author: Tomas Frydrych <tf@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#include "config.h"
-#include "compositor-private.h"
-#include "meta-plugin-manager.h"
-#include <meta/prefs.h>
-#include <meta/errors.h>
-#include <meta/workspace.h>
-#include "meta-module.h"
-#include "window-private.h"
-
-#include <string.h>
-#include <stdlib.h>
-
-#include <clutter/x11/clutter-x11.h>
-
-static GType plugin_type = G_TYPE_NONE;
-
-struct MetaPluginManager
-{
-  MetaScreen *screen;
-  MetaPlugin *plugin;
-};
-
-void
-meta_plugin_manager_set_plugin_type (GType gtype)
-{
-  if (plugin_type != G_TYPE_NONE)
-    meta_fatal ("Mutter plugin already set: %s", g_type_name (plugin_type));
-
-  plugin_type = gtype;
-}
-
-/*
- * Loads the given plugin.
- */
-void
-meta_plugin_manager_load (const gchar       *plugin_name)
-{
-  const gchar *dpath = MUTTER_PLUGIN_DIR "/";
-  gchar       *path;
-  MetaModule  *module;
-
-  if (g_path_is_absolute (plugin_name))
-    path = g_strdup (plugin_name);
-  else
-    path = g_strconcat (dpath, plugin_name, ".so", NULL);
-
-  module = g_object_new (META_TYPE_MODULE, "path", path, NULL);
-  if (!module || !g_type_module_use (G_TYPE_MODULE (module)))
-    {
-      /* This is fatal under the assumption that a monitoring
-       * process like gnome-session will take over and handle
-       * our untimely exit.
-       */
-      g_printerr ("Unable to load plugin module [%s]: %s",
-                  path, g_module_error());
-      exit (1);
-    }
-
-  meta_plugin_manager_set_plugin_type (meta_module_get_plugin_type (module));
-
-  g_type_module_unuse (G_TYPE_MODULE (module));
-  g_free (path);
-}
-
-MetaPluginManager *
-meta_plugin_manager_new (MetaScreen *screen)
-{
-  MetaPluginManager *plugin_mgr;
-  MetaPluginClass *klass;
-  MetaPlugin *plugin;
-
-  plugin_mgr = g_new0 (MetaPluginManager, 1);
-  plugin_mgr->screen = screen;
-  plugin_mgr->plugin = plugin = g_object_new (plugin_type, "screen", screen, NULL);
-
-  klass = META_PLUGIN_GET_CLASS (plugin);
-
-  if (klass->start)
-    klass->start (plugin);
-
-  return plugin_mgr;
-}
-
-static void
-meta_plugin_manager_kill_window_effects (MetaPluginManager *plugin_mgr,
-                                         MetaWindowActor   *actor)
-{
-  MetaPlugin        *plugin = plugin_mgr->plugin;
-  MetaPluginClass   *klass = META_PLUGIN_GET_CLASS (plugin);
-
-  if (klass->kill_window_effects)
-    klass->kill_window_effects (plugin, actor);
-}
-
-static void
-meta_plugin_manager_kill_switch_workspace (MetaPluginManager *plugin_mgr)
-{
-  MetaPlugin        *plugin = plugin_mgr->plugin;
-  MetaPluginClass   *klass = META_PLUGIN_GET_CLASS (plugin);
-
-  if (klass->kill_switch_workspace)
-    klass->kill_switch_workspace (plugin);
-}
-
-/*
- * Public method that the compositor hooks into for events that require
- * no additional parameters.
- *
- * Returns TRUE if the plugin handled the event type (i.e.,
- * if the return value is FALSE, there will be no subsequent call to the
- * manager completed() callback, and the compositor must ensure that any
- * appropriate post-effect cleanup is carried out.
- */
-gboolean
-meta_plugin_manager_event_simple (MetaPluginManager *plugin_mgr,
-                                  MetaWindowActor   *actor,
-                                  unsigned long      event)
-{
-  MetaPlugin *plugin = plugin_mgr->plugin;
-  MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
-  MetaDisplay *display  = meta_screen_get_display (plugin_mgr->screen);
-  gboolean retval = FALSE;
-
-  if (display->display_opening)
-    return FALSE;
-
-  switch (event)
-    {
-    case META_PLUGIN_MINIMIZE:
-      if (klass->minimize)
-        {
-          retval = TRUE;
-          meta_plugin_manager_kill_window_effects (plugin_mgr,
-                                                   actor);
-
-          _meta_plugin_effect_started (plugin);
-          klass->minimize (plugin, actor);
-        }
-      break;
-    case META_PLUGIN_MAP:
-      if (klass->map)
-        {
-          retval = TRUE;
-          meta_plugin_manager_kill_window_effects (plugin_mgr,
-                                                   actor);
-
-          _meta_plugin_effect_started (plugin);
-          klass->map (plugin, actor);
-        }
-      break;
-    case META_PLUGIN_DESTROY:
-      if (klass->destroy)
-        {
-          retval = TRUE;
-          _meta_plugin_effect_started (plugin);
-          klass->destroy (plugin, actor);
-        }
-      break;
-    default:
-      g_warning ("Incorrect handler called for event %lu", event);
-    }
-
-  return retval;
-}
-
-/*
- * The public method that the compositor hooks into for maximize and unmaximize
- * events.
- *
- * Returns TRUE if the plugin handled the event type (i.e.,
- * if the return value is FALSE, there will be no subsequent call to the
- * manager completed() callback, and the compositor must ensure that any
- * appropriate post-effect cleanup is carried out.
- */
-gboolean
-meta_plugin_manager_event_maximize (MetaPluginManager *plugin_mgr,
-                                    MetaWindowActor   *actor,
-                                    unsigned long      event,
-                                    gint               target_x,
-                                    gint               target_y,
-                                    gint               target_width,
-                                    gint               target_height)
-{
-  MetaPlugin *plugin = plugin_mgr->plugin;
-  MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
-  MetaDisplay *display = meta_screen_get_display (plugin_mgr->screen);
-  gboolean retval = FALSE;
-
-  if (display->display_opening)
-    return FALSE;
-
-  switch (event)
-    {
-    case META_PLUGIN_MAXIMIZE:
-      if (klass->maximize)
-        {
-          retval = TRUE;
-          meta_plugin_manager_kill_window_effects (plugin_mgr,
-                                                   actor);
-
-          _meta_plugin_effect_started (plugin);
-          klass->maximize (plugin, actor,
-                           target_x, target_y,
-                           target_width, target_height);
-        }
-      break;
-    case META_PLUGIN_UNMAXIMIZE:
-      if (klass->unmaximize)
-        {
-          retval = TRUE;
-          meta_plugin_manager_kill_window_effects (plugin_mgr,
-                                                   actor);
-
-          _meta_plugin_effect_started (plugin);
-          klass->unmaximize (plugin, actor,
-                             target_x, target_y,
-                             target_width, target_height);
-        }
-      break;
-    default:
-      g_warning ("Incorrect handler called for event %lu", event);
-    }
-
-  return retval;
-}
-
-/*
- * The public method that the compositor hooks into for desktop switching.
- *
- * Returns TRUE if the plugin handled the event type (i.e.,
- * if the return value is FALSE, there will be no subsequent call to the
- * manager completed() callback, and the compositor must ensure that any
- * appropriate post-effect cleanup is carried out.
- */
-gboolean
-meta_plugin_manager_switch_workspace (MetaPluginManager   *plugin_mgr,
-                                      gint                 from,
-                                      gint                 to,
-                                      MetaMotionDirection  direction)
-{
-  MetaPlugin *plugin = plugin_mgr->plugin;
-  MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
-  MetaDisplay *display = meta_screen_get_display (plugin_mgr->screen);
-  gboolean retval = FALSE;
-
-  if (display->display_opening)
-    return FALSE;
-
-  if (klass->switch_workspace)
-    {
-      retval = TRUE;
-      meta_plugin_manager_kill_switch_workspace (plugin_mgr);
-
-      _meta_plugin_effect_started (plugin);
-      klass->switch_workspace (plugin, from, to, direction);
-    }
-
-  return retval;
-}
-
-/*
- * The public method that the compositor hooks into for desktop switching.
- *
- * Returns TRUE if the plugin handled the event type (i.e.,
- * if the return value is FALSE, there will be no subsequent call to the
- * manager completed() callback, and the compositor must ensure that any
- * appropriate post-effect cleanup is carried out.
- */
-gboolean
-meta_plugin_manager_xevent_filter (MetaPluginManager *plugin_mgr,
-                                   XEvent            *xev)
-{
-  MetaPlugin *plugin = plugin_mgr->plugin;
-  MetaPluginClass *klass = META_PLUGIN_GET_CLASS (plugin);
-
-  if (!plugin_mgr)
-    return FALSE;
-
-  /* We need to make sure that clutter gets certain events, like
-   * ConfigureNotify on the stage window. If there is a plugin that
-   * provides an xevent_filter function, then it's the responsibility
-   * of that plugin to pass events to Clutter. Otherwise, we send the
-   * event directly to Clutter ourselves.
-   */
-  if (klass->xevent_filter && klass->xevent_filter (plugin, xev))
-    return TRUE;
-  else
-    return clutter_x11_handle_event (xev) != CLUTTER_X11_FILTER_CONTINUE;
-}

src/compositor/meta-plugin-manager.h

@@ -1,73 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
-/*
- * Copyright (c) 2008 Intel Corp.
- *
- * Author: Tomas Frydrych <tf@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#ifndef META_PLUGIN_MANAGER_H_
-#define META_PLUGIN_MANAGER_H_
-
-#include <meta/types.h>
-#include <meta/screen.h>
-
-#define  META_PLUGIN_FROM_MANAGER_
-#include <meta/meta-plugin.h>
-#undef   META_PLUGIN_FROM_MANAGER_
-
-#define META_PLUGIN_MINIMIZE         (1<<0)
-#define META_PLUGIN_MAXIMIZE         (1<<1)
-#define META_PLUGIN_UNMAXIMIZE       (1<<2)
-#define META_PLUGIN_MAP              (1<<3)
-#define META_PLUGIN_DESTROY          (1<<4)
-#define META_PLUGIN_SWITCH_WORKSPACE (1<<5)
-
-#define META_PLUGIN_ALL_EFFECTS      (~0)
-
-/**
- * MetaPluginManager: (skip)
- *
- */
-typedef struct MetaPluginManager MetaPluginManager;
-
-MetaPluginManager * meta_plugin_manager_new (MetaScreen *screen);
-
-void     meta_plugin_manager_load         (const gchar       *plugin_name);
-
-gboolean meta_plugin_manager_event_simple (MetaPluginManager *mgr,
-                                           MetaWindowActor   *actor,
-                                           unsigned long      event);
-
-gboolean meta_plugin_manager_event_maximize    (MetaPluginManager *mgr,
-                                                MetaWindowActor   *actor,
-                                                unsigned long      event,
-                                                gint               target_x,
-                                                gint               target_y,
-                                                gint               target_width,
-                                                gint               target_height);
-
-gboolean meta_plugin_manager_switch_workspace (MetaPluginManager   *mgr,
-                                               gint                 from,
-                                               gint                 to,
-                                               MetaMotionDirection  direction);
-
-gboolean meta_plugin_manager_xevent_filter (MetaPluginManager *mgr,
-                                            XEvent            *xev);
-
-#endif

src/compositor/meta-plugin.c

@@ -1,333 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
-/*
- * Copyright (c) 2008 Intel Corp.
- *
- * Author: Tomas Frydrych <tf@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#include <meta/meta-plugin.h>
-#include "meta-plugin-manager.h"
-#include <meta/screen.h>
-#include <meta/display.h>
-
-#include <string.h>
-#include <X11/Xlib.h>
-#include <X11/extensions/Xfixes.h>
-#include <X11/extensions/shape.h>
-#include <clutter/x11/clutter-x11.h>
-
-#include "compositor-private.h"
-#include "meta-window-actor-private.h"
-
-G_DEFINE_ABSTRACT_TYPE (MetaPlugin, meta_plugin, G_TYPE_OBJECT);
-
-#define META_PLUGIN_GET_PRIVATE(obj) \
-(G_TYPE_INSTANCE_GET_PRIVATE ((obj), META_TYPE_PLUGIN, MetaPluginPrivate))
-
-enum
-{
-  PROP_0,
-  PROP_SCREEN,
-  PROP_DEBUG_MODE,
-};
-
-struct _MetaPluginPrivate
-{
-  MetaScreen   *screen;
-
-  gint          running;
-  gboolean      debug    : 1;
-};
-
-static void
-meta_plugin_set_property (GObject      *object,
-                          guint         prop_id,
-                          const GValue *value,
-                          GParamSpec   *pspec)
-{
-  MetaPluginPrivate *priv = META_PLUGIN (object)->priv;
-
-  switch (prop_id)
-    {
-    case PROP_SCREEN:
-      priv->screen = g_value_get_object (value);
-      break;
-    case PROP_DEBUG_MODE:
-      priv->debug = g_value_get_boolean (value);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-static void
-meta_plugin_get_property (GObject    *object,
-                          guint       prop_id,
-                          GValue     *value,
-                          GParamSpec *pspec)
-{
-  MetaPluginPrivate *priv = META_PLUGIN (object)->priv;
-
-  switch (prop_id)
-    {
-    case PROP_SCREEN:
-      g_value_set_object (value, priv->screen);
-      break;
-    case PROP_DEBUG_MODE:
-      g_value_set_boolean (value, priv->debug);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-    }
-}
-
-
-static void
-meta_plugin_class_init (MetaPluginClass *klass)
-{
-  GObjectClass      *gobject_class = G_OBJECT_CLASS (klass);
-
-  gobject_class->set_property    = meta_plugin_set_property;
-  gobject_class->get_property    = meta_plugin_get_property;
-
-  g_object_class_install_property (gobject_class,
-                                   PROP_SCREEN,
-                                   g_param_spec_object ("screen",
-                                                        "MetaScreen",
-                                                        "MetaScreen",
-                                                        META_TYPE_SCREEN,
-                                                        G_PARAM_READWRITE));
-
-  g_object_class_install_property (gobject_class,
-				   PROP_DEBUG_MODE,
-				   g_param_spec_boolean ("debug-mode",
-                                                      "Debug Mode",
-                                                      "Debug Mode",
-                                                      FALSE,
-                                                      G_PARAM_READABLE));
-
-  g_type_class_add_private (gobject_class, sizeof (MetaPluginPrivate));
-}
-
-static void
-meta_plugin_init (MetaPlugin *self)
-{
-  MetaPluginPrivate *priv;
-
-  self->priv = priv = META_PLUGIN_GET_PRIVATE (self);
-}
-
-gboolean
-meta_plugin_running  (MetaPlugin *plugin)
-{
-  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
-
-  return (priv->running > 0);
-}
-
-gboolean
-meta_plugin_debug_mode (MetaPlugin *plugin)
-{
-  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
-
-  return priv->debug;
-}
-
-const MetaPluginInfo *
-meta_plugin_get_info (MetaPlugin *plugin)
-{
-  MetaPluginClass  *klass = META_PLUGIN_GET_CLASS (plugin);
-
-  if (klass && klass->plugin_info)
-    return klass->plugin_info (plugin);
-
-  return NULL;
-}
-
-/**
- * _meta_plugin_effect_started:
- * @plugin: the plugin
- *
- * Mark that an effect has started for the plugin. This is called
- * internally by MetaPluginManager.
- */
-void
-_meta_plugin_effect_started (MetaPlugin *plugin)
-{
-  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
-
-  priv->running++;
-}
-
-void
-meta_plugin_switch_workspace_completed (MetaPlugin *plugin)
-{
-  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
-
-  MetaScreen *screen = priv->screen;
-
-  if (priv->running-- < 0)
-    {
-      g_warning ("Error in running effect accounting, adjusting.");
-      priv->running = 0;
-    }
-
-  meta_switch_workspace_completed (screen);
-}
-
-static void
-meta_plugin_window_effect_completed (MetaPlugin      *plugin,
-                                     MetaWindowActor *actor,
-                                     unsigned long    event)
-{
-  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
-
-  if (priv->running-- < 0)
-    {
-      g_warning ("Error in running effect accounting, adjusting.");
-      priv->running = 0;
-    }
-
-  if (!actor)
-    {
-      const MetaPluginInfo *info;
-      const gchar            *name = NULL;
-
-      if (plugin && (info = meta_plugin_get_info (plugin)))
-        name = info->name;
-
-      g_warning ("Plugin [%s] passed NULL for actor!",
-                 name ? name : "unknown");
-    }
-
-  meta_window_actor_effect_completed (actor, event);
-}
-
-void
-meta_plugin_minimize_completed (MetaPlugin      *plugin,
-                                MetaWindowActor *actor)
-{
-  meta_plugin_window_effect_completed (plugin, actor, META_PLUGIN_MINIMIZE);
-}
-
-void
-meta_plugin_maximize_completed (MetaPlugin      *plugin,
-                                MetaWindowActor *actor)
-{
-  meta_plugin_window_effect_completed (plugin, actor, META_PLUGIN_MAXIMIZE);
-}
-
-void
-meta_plugin_unmaximize_completed (MetaPlugin      *plugin,
-                                  MetaWindowActor *actor)
-{
-  meta_plugin_window_effect_completed (plugin, actor, META_PLUGIN_UNMAXIMIZE);
-}
-
-void
-meta_plugin_map_completed (MetaPlugin      *plugin,
-                           MetaWindowActor *actor)
-{
-  meta_plugin_window_effect_completed (plugin, actor, META_PLUGIN_MAP);
-}
-
-void
-meta_plugin_destroy_completed (MetaPlugin      *plugin,
-                               MetaWindowActor *actor)
-{
-  meta_plugin_window_effect_completed (plugin, actor, META_PLUGIN_DESTROY);
-}
-
-/**
- * meta_plugin_begin_modal:
- * @plugin: a #MetaPlugin
- * @grab_window: the X window to grab the keyboard and mouse on
- * @cursor: the cursor to use for the pointer grab, or None,
- *          to use the normal cursor for the grab window and
- *          its descendants.
- * @options: flags that modify the behavior of the modal grab
- * @timestamp: the timestamp used for establishing grabs
- *
- * This function is used to grab the keyboard and mouse for the exclusive
- * use of the plugin. Correct operation requires that both the keyboard
- * and mouse are grabbed, or thing will break. (In particular, other
- * passive X grabs in Meta can trigger but not be handled by the normal
- * keybinding handling code.) However, the plugin can establish the keyboard
- * and/or mouse grabs ahead of time and pass in the
- * %META_MODAL_POINTER_ALREADY_GRABBED and/or %META_MODAL_KEYBOARD_ALREADY_GRABBED
- * options. This facility is provided for two reasons: first to allow using
- * this function to establish modality after a passive grab, and second to
- * allow using obscure features of XGrabPointer() and XGrabKeyboard() without
- * having to add them to this API.
- *
- * Return value: whether we successfully grabbed the keyboard and
- *  mouse and made the plugin modal.
- */
-gboolean
-meta_plugin_begin_modal (MetaPlugin       *plugin,
-                         Window            grab_window,
-                         Cursor            cursor,
-                         MetaModalOptions  options,
-                         guint32           timestamp)
-{
-  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
-
-  return meta_begin_modal_for_plugin (priv->screen, plugin,
-                                      grab_window, cursor, options, timestamp);
-}
-
-/**
- * meta_plugin_end_modal:
- * @plugin: a #MetaPlugin
- * @timestamp: the time used for releasing grabs
- *
- * Ends the modal operation begun with meta_plugin_begin_modal(). This
- * ungrabs both the mouse and keyboard even when
- * %META_MODAL_POINTER_ALREADY_GRABBED or
- * %META_MODAL_KEYBOARD_ALREADY_GRABBED were provided as options
- * when beginnning the modal operation.
- */
-void
-meta_plugin_end_modal (MetaPlugin *plugin,
-                       guint32     timestamp)
-{
-  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
-
-  meta_end_modal_for_plugin (priv->screen, plugin, timestamp);
-}
-
-/**
- * meta_plugin_get_screen:
- * @plugin: a #MetaPlugin
- *
- * Gets the #MetaScreen corresponding to a plugin. Each plugin instance
- * is associated with exactly one screen; if Metacity is managing
- * multiple screens, multiple plugin instances will be created.
- *
- * Return value: (transfer none): the #MetaScreen for the plugin
- */
-MetaScreen *
-meta_plugin_get_screen (MetaPlugin *plugin)
-{
-  MetaPluginPrivate *priv = META_PLUGIN (plugin)->priv;
-
-  return priv->screen;
-}

src/compositor/meta-shadow-factory-private.h

@@ -1,68 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-/*
- * MetaShadowFactory:
- *
- * Create and cache shadow textures for arbitrary window shapes
- *
- * Copyright (C) 2010 Red Hat, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#ifndef __META_SHADOW_FACTORY_PRIVATE_H__
-#define __META_SHADOW_FACTORY_PRIVATE_H__
-
-#include <cairo.h>
-#include <clutter/clutter.h>
-#include "meta-window-shape.h"
-#include <meta/meta-shadow-factory.h>
-
-/**
- * MetaShadow:
- * #MetaShadow holds a shadow texture along with information about how to
- * apply that texture to draw a window texture. (E.g., it knows how big the
- * unscaled borders are on each side of the shadow texture.)
- */
-typedef struct _MetaShadow MetaShadow;
-
-MetaShadow *meta_shadow_ref         (MetaShadow            *shadow);
-void        meta_shadow_unref       (MetaShadow            *shadow);
-CoglHandle  meta_shadow_get_texture (MetaShadow            *shadow);
-void        meta_shadow_paint       (MetaShadow            *shadow,
-                                     int                    window_x,
-                                     int                    window_y,
-                                     int                    window_width,
-                                     int                    window_height,
-                                     guint8                 opacity,
-                                     cairo_region_t        *clip,
-                                     gboolean               clip_strictly);
-void        meta_shadow_get_bounds  (MetaShadow            *shadow,
-                                     int                    window_x,
-                                     int                    window_y,
-                                     int                    window_width,
-                                     int                    window_height,
-                                     cairo_rectangle_int_t *bounds);
-
-MetaShadowFactory *meta_shadow_factory_new (void);
-
-MetaShadow *meta_shadow_factory_get_shadow (MetaShadowFactory *factory,
-                                            MetaWindowShape   *shape,
-                                            int                width,
-                                            int                height,
-                                            const char        *class_name,
-                                            gboolean           focused);
-
-#endif /* __META_SHADOW_FACTORY_PRIVATE_H__ */

src/compositor/meta-shaped-texture.c

@@ -1,679 +0,0 @@
-/*
- * shaped texture
- *
- * An actor to draw a masked texture.
- *
- * Authored By Neil Roberts  <neil@linux.intel.com>
- * and Jasper St. Pierre <jstpierre@mecheye.net>
- *
- * Copyright (C) 2008 Intel Corporation
- * Copyright (C) 2012 Red Hat, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#include <config.h>
-
-#define CLUTTER_ENABLE_EXPERIMENTAL_API
-#define COGL_ENABLE_EXPERIMENTAL_API
-
-#include <meta/meta-shaped-texture.h>
-#include "meta-texture-tower.h"
-
-#include <clutter/clutter.h>
-#include <cogl/cogl.h>
-#include <cogl/cogl-texture-pixmap-x11.h>
-#include <gdk/gdk.h> /* for gdk_rectangle_intersect() */
-
-static void meta_shaped_texture_dispose  (GObject    *object);
-
-static void meta_shaped_texture_paint (ClutterActor       *actor);
-static void meta_shaped_texture_pick  (ClutterActor       *actor,
-				       const ClutterColor *color);
-
-static void meta_shaped_texture_get_preferred_width (ClutterActor *self,
-                                                     gfloat        for_height,
-                                                     gfloat       *min_width_p,
-                                                     gfloat       *natural_width_p);
-
-static void meta_shaped_texture_get_preferred_height (ClutterActor *self,
-                                                      gfloat        for_width,
-                                                      gfloat       *min_height_p,
-                                                      gfloat       *natural_height_p);
-
-static gboolean meta_shaped_texture_get_paint_volume (ClutterActor *self, ClutterPaintVolume *volume);
-
-G_DEFINE_TYPE (MetaShapedTexture, meta_shaped_texture,
-               CLUTTER_TYPE_ACTOR);
-
-#define META_SHAPED_TEXTURE_GET_PRIVATE(obj) \
-  (G_TYPE_INSTANCE_GET_PRIVATE ((obj), META_TYPE_SHAPED_TEXTURE, \
-                                MetaShapedTexturePrivate))
-
-struct _MetaShapedTexturePrivate
-{
-  MetaTextureTower *paint_tower;
-  Pixmap pixmap;
-  CoglHandle texture;
-  CoglHandle mask_texture;
-  CoglHandle material;
-  CoglHandle material_unshaped;
-
-  cairo_region_t *clip_region;
-
-  guint tex_width, tex_height;
-
-  guint create_mipmaps : 1;
-};
-
-static void
-meta_shaped_texture_class_init (MetaShapedTextureClass *klass)
-{
-  GObjectClass *gobject_class = (GObjectClass *) klass;
-  ClutterActorClass *actor_class = (ClutterActorClass *) klass;
-
-  gobject_class->dispose = meta_shaped_texture_dispose;
-
-  actor_class->get_preferred_width = meta_shaped_texture_get_preferred_width;
-  actor_class->get_preferred_height = meta_shaped_texture_get_preferred_height;
-  actor_class->paint = meta_shaped_texture_paint;
-  actor_class->pick = meta_shaped_texture_pick;
-  actor_class->get_paint_volume = meta_shaped_texture_get_paint_volume;
-
-  g_type_class_add_private (klass, sizeof (MetaShapedTexturePrivate));
-}
-
-static void
-meta_shaped_texture_init (MetaShapedTexture *self)
-{
-  MetaShapedTexturePrivate *priv;
-
-  priv = self->priv = META_SHAPED_TEXTURE_GET_PRIVATE (self);
-
-  priv->paint_tower = meta_texture_tower_new ();
-  priv->texture = COGL_INVALID_HANDLE;
-  priv->mask_texture = COGL_INVALID_HANDLE;
-  priv->create_mipmaps = TRUE;
-}
-
-static void
-meta_shaped_texture_dispose (GObject *object)
-{
-  MetaShapedTexture *self = (MetaShapedTexture *) object;
-  MetaShapedTexturePrivate *priv = self->priv;
-
-  if (priv->paint_tower)
-    meta_texture_tower_free (priv->paint_tower);
-  priv->paint_tower = NULL;
-
-  if (priv->material != COGL_INVALID_HANDLE)
-    {
-      cogl_handle_unref (priv->material);
-      priv->material = COGL_INVALID_HANDLE;
-    }
-  if (priv->material_unshaped != COGL_INVALID_HANDLE)
-    {
-      cogl_handle_unref (priv->material_unshaped);
-      priv->material_unshaped = COGL_INVALID_HANDLE;
-    }
-  if (priv->texture != COGL_INVALID_HANDLE)
-    {
-      cogl_handle_unref (priv->texture);
-      priv->texture = COGL_INVALID_HANDLE;
-    }
-
-  meta_shaped_texture_set_mask_texture (self, COGL_INVALID_HANDLE);
-  meta_shaped_texture_set_clip_region (self, NULL);
-
-  G_OBJECT_CLASS (meta_shaped_texture_parent_class)->dispose (object);
-}
-
-static void
-meta_shaped_texture_paint (ClutterActor *actor)
-{
-  MetaShapedTexture *stex = (MetaShapedTexture *) actor;
-  MetaShapedTexturePrivate *priv = stex->priv;
-  CoglHandle paint_tex;
-  guint tex_width, tex_height;
-  ClutterActorBox alloc;
-
-  static CoglHandle material_template = COGL_INVALID_HANDLE;
-  static CoglHandle material_unshaped_template = COGL_INVALID_HANDLE;
-
-  CoglHandle material;
-
-  if (priv->clip_region && cairo_region_is_empty (priv->clip_region))
-    return;
-
-  if (!CLUTTER_ACTOR_IS_REALIZED (CLUTTER_ACTOR (stex)))
-    clutter_actor_realize (CLUTTER_ACTOR (stex));
-
-  /* The GL EXT_texture_from_pixmap extension does allow for it to be
-   * used together with SGIS_generate_mipmap, however this is very
-   * rarely supported. Also, even when it is supported there
-   * are distinct performance implications from:
-   *
-   *  - Updating mipmaps that we don't need
-   *  - Having to reallocate pixmaps on the server into larger buffers
-   *
-   * So, we just unconditionally use our mipmap emulation code. If we
-   * wanted to use SGIS_generate_mipmap, we'd have to  query COGL to
-   * see if it was supported (no API currently), and then if and only
-   * if that was the case, set the clutter texture quality to HIGH.
-   * Setting the texture quality to high without SGIS_generate_mipmap
-   * support for TFP textures will result in fallbacks to XGetImage.
-   */
-  if (priv->create_mipmaps)
-    paint_tex = meta_texture_tower_get_paint_texture (priv->paint_tower);
-  else
-    paint_tex = priv->texture;
-
-  if (paint_tex == COGL_INVALID_HANDLE)
-    return;
-
-  tex_width = priv->tex_width;
-  tex_height = priv->tex_height;
-
-  if (tex_width == 0 || tex_height == 0) /* no contents yet */
-    return;
-
-  if (priv->mask_texture == COGL_INVALID_HANDLE)
-    {
-      /* Use a single-layer texture if we don't have a mask. */
-
-      if (priv->material_unshaped == COGL_INVALID_HANDLE) 
-        {
-          if (G_UNLIKELY (material_unshaped_template == COGL_INVALID_HANDLE))
-            material_unshaped_template = cogl_material_new ();
-
-          priv->material_unshaped = cogl_material_copy (material_unshaped_template);
-        }
-        material = priv->material_unshaped;
-    }
-  else
-    {
-      if (priv->material == COGL_INVALID_HANDLE)
-	{
-	   if (G_UNLIKELY (material_template == COGL_INVALID_HANDLE))
-	    {
-	      material_template =  cogl_material_new ();
-	      cogl_material_set_layer_combine (material_template, 1,
-					   "RGBA = MODULATE (PREVIOUS, TEXTURE[A])",
-					   NULL);
-	    }
-	  priv->material = cogl_material_copy (material_template);
-	}
-      material = priv->material;
-
-      cogl_material_set_layer (material, 1, priv->mask_texture);
-    }
-
-  cogl_material_set_layer (material, 0, paint_tex);
-
-  {
-    CoglColor color;
-    guchar opacity = clutter_actor_get_paint_opacity (actor);
-    cogl_color_set_from_4ub (&color, opacity, opacity, opacity, opacity);
-    cogl_material_set_color (material, &color);
-  }
-
-  cogl_set_source (material);
-
-  clutter_actor_get_allocation_box (actor, &alloc);
-
-  if (priv->clip_region)
-    {
-      int n_rects;
-      int i;
-      cairo_rectangle_int_t tex_rect = { 0, 0, tex_width, tex_height };
-
-      /* Limit to how many separate rectangles we'll draw; beyond this just
-       * fall back and draw the whole thing */
-#     define MAX_RECTS 16
-
-      n_rects = cairo_region_num_rectangles (priv->clip_region);
-      if (n_rects <= MAX_RECTS)
-	{
-	  float coords[8];
-          float x1, y1, x2, y2;
-
-	  for (i = 0; i < n_rects; i++)
-	    {
-	      cairo_rectangle_int_t rect;
-
-	      cairo_region_get_rectangle (priv->clip_region, i, &rect);
-
-	      if (!gdk_rectangle_intersect (&tex_rect, &rect, &rect))
-		continue;
-
-	      x1 = rect.x;
-	      y1 = rect.y;
-	      x2 = rect.x + rect.width;
-	      y2 = rect.y + rect.height;
-
-	      coords[0] = rect.x / (alloc.x2 - alloc.x1);
-	      coords[1] = rect.y / (alloc.y2 - alloc.y1);
-	      coords[2] = (rect.x + rect.width) / (alloc.x2 - alloc.x1);
-	      coords[3] = (rect.y + rect.height) / (alloc.y2 - alloc.y1);
-
-              coords[4] = coords[0];
-              coords[5] = coords[1];
-              coords[6] = coords[2];
-              coords[7] = coords[3];
-
-              cogl_rectangle_with_multitexture_coords (x1, y1, x2, y2,
-                                                       &coords[0], 8);
-            }
-
-	  return;
-	}
-    }
-
-  cogl_rectangle (0, 0,
-		  alloc.x2 - alloc.x1,
-		  alloc.y2 - alloc.y1);
-}
-
-static void
-meta_shaped_texture_pick (ClutterActor       *actor,
-			  const ClutterColor *color)
-{
-  MetaShapedTexture *stex = (MetaShapedTexture *) actor;
-  MetaShapedTexturePrivate *priv = stex->priv;
-
-  /* If there is no region then use the regular pick */
-  if (priv->mask_texture == COGL_INVALID_HANDLE)
-    CLUTTER_ACTOR_CLASS (meta_shaped_texture_parent_class)
-      ->pick (actor, color);
-  else if (clutter_actor_should_pick_paint (actor))
-    {
-      CoglHandle paint_tex;
-      ClutterActorBox alloc;
-      guint tex_width, tex_height;
-
-      paint_tex = priv->texture;
-
-      if (paint_tex == COGL_INVALID_HANDLE)
-        return;
-
-      tex_width = cogl_texture_get_width (paint_tex);
-      tex_height = cogl_texture_get_height (paint_tex);
-
-      if (tex_width == 0 || tex_height == 0) /* no contents yet */
-        return;
-
-      cogl_set_source_color4ub (color->red, color->green, color->blue,
-                                 color->alpha);
-
-      clutter_actor_get_allocation_box (actor, &alloc);
-
-      /* Paint the mask rectangle in the given color */
-      cogl_set_source_texture (priv->mask_texture);
-      cogl_rectangle_with_texture_coords (0, 0,
-                                          alloc.x2 - alloc.x1,
-                                          alloc.y2 - alloc.y1,
-                                          0, 0, 1, 1);
-    }
-}
-
-static void
-meta_shaped_texture_get_preferred_width (ClutterActor *self,
-                                         gfloat        for_height,
-                                         gfloat       *min_width_p,
-                                         gfloat       *natural_width_p)
-{
-  MetaShapedTexturePrivate *priv;
-
-  g_return_if_fail (META_IS_SHAPED_TEXTURE (self));
-
-  priv = META_SHAPED_TEXTURE (self)->priv;
-
-  if (min_width_p)
-    *min_width_p = 0;
-
-  if (natural_width_p)
-    *natural_width_p = priv->tex_width;
-}
-
-static void
-meta_shaped_texture_get_preferred_height (ClutterActor *self,
-                                          gfloat        for_width,
-                                          gfloat       *min_height_p,
-                                          gfloat       *natural_height_p)
-{
-  MetaShapedTexturePrivate *priv;
-
-  g_return_if_fail (META_IS_SHAPED_TEXTURE (self));
-
-  priv = META_SHAPED_TEXTURE (self)->priv;
-
-  if (min_height_p)
-    *min_height_p = 0;
-
-  if (natural_height_p)
-    *natural_height_p = priv->tex_height;
-}
-
-static gboolean
-meta_shaped_texture_get_paint_volume (ClutterActor *self,
-                                      ClutterPaintVolume *volume)
-{
-  return clutter_paint_volume_set_from_allocation (volume, self);
-}
-
-ClutterActor *
-meta_shaped_texture_new (void)
-{
-  ClutterActor *self = g_object_new (META_TYPE_SHAPED_TEXTURE, NULL);
-
-  return self;
-}
-
-void
-meta_shaped_texture_set_create_mipmaps (MetaShapedTexture *stex,
-					gboolean           create_mipmaps)
-{
-  MetaShapedTexturePrivate *priv;
-
-  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
-
-  priv = stex->priv;
-
-  create_mipmaps = create_mipmaps != FALSE;
-
-  if (create_mipmaps != priv->create_mipmaps)
-    {
-      CoglHandle base_texture;
-      priv->create_mipmaps = create_mipmaps;
-      base_texture = create_mipmaps ?
-        priv->texture : COGL_INVALID_HANDLE;
-      meta_texture_tower_set_base_texture (priv->paint_tower, base_texture);
-    }
-}
-
-void
-meta_shaped_texture_set_mask_texture (MetaShapedTexture *stex,
-                                      CoglHandle         mask_texture)
-{
-  MetaShapedTexturePrivate *priv;
-
-  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
-
-  priv = stex->priv;
-
-  if (priv->mask_texture != COGL_INVALID_HANDLE)
-    {
-      cogl_handle_unref (priv->mask_texture);
-      priv->mask_texture = COGL_INVALID_HANDLE;
-    }
-
-  if (mask_texture != COGL_INVALID_HANDLE)
-    {
-      priv->mask_texture = mask_texture;
-      cogl_handle_ref (priv->mask_texture);
-    }
-
-  clutter_actor_queue_redraw (CLUTTER_ACTOR (stex));
-}
-
-void
-meta_shaped_texture_update_area (MetaShapedTexture *stex,
-				 int                x,
-				 int                y,
-				 int                width,
-				 int                height)
-{
-  MetaShapedTexturePrivate *priv;
-  const cairo_rectangle_int_t clip = { x, y, width, height };
-
-  priv = stex->priv;
-
-  if (priv->texture == COGL_INVALID_HANDLE)
-    return;
-
-  cogl_texture_pixmap_x11_update_area (priv->texture, x, y, width, height);
-
-  meta_texture_tower_update_area (priv->paint_tower, x, y, width, height);
-
-  clutter_actor_queue_redraw_with_clip (CLUTTER_ACTOR (stex), &clip);
-}
-
-static void
-set_cogl_texture (MetaShapedTexture *stex,
-                  CoglHandle         cogl_tex)
-{
-  MetaShapedTexturePrivate *priv;
-  guint width, height;
-
-  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
-
-  priv = stex->priv;
-
-  if (priv->texture != COGL_INVALID_HANDLE)
-    cogl_handle_unref (priv->texture);
-
-  priv->texture = cogl_tex;
-
-  if (priv->material != COGL_INVALID_HANDLE)
-    cogl_material_set_layer (priv->material, 0, cogl_tex);
-
-  if (priv->material_unshaped != COGL_INVALID_HANDLE)
-    cogl_material_set_layer (priv->material_unshaped, 0, cogl_tex);
-
-  if (cogl_tex != COGL_INVALID_HANDLE)
-    {
-      width = cogl_texture_get_width (cogl_tex);
-      height = cogl_texture_get_height (cogl_tex);
-
-      if (width != priv->tex_width ||
-          height != priv->tex_height)
-        {
-          priv->tex_width = width;
-          priv->tex_height = height;
-
-          clutter_actor_queue_relayout (CLUTTER_ACTOR (stex));
-        }
-    }
-  else
-    {
-      /* size changed to 0 going to an invalid handle */
-      priv->tex_width = 0;
-      priv->tex_height = 0;
-      clutter_actor_queue_relayout (CLUTTER_ACTOR (stex));
-    }
-
-  clutter_actor_queue_redraw (CLUTTER_ACTOR (stex));
-}
-
-/**
- * meta_shaped_texture_set_pixmap:
- * @stex: The #MetaShapedTexture
- * @pixmap: The pixmap you want the stex to assume
- */
-void
-meta_shaped_texture_set_pixmap (MetaShapedTexture *stex,
-                                Pixmap             pixmap)
-{
-  MetaShapedTexturePrivate *priv;
-
-  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
-
-  priv = stex->priv;
-
-  if (priv->pixmap == pixmap)
-    return;
-
-  priv->pixmap = pixmap;
-
-  if (pixmap != None)
-    {
-      CoglContext *ctx =
-        clutter_backend_get_cogl_context (clutter_get_default_backend ());
-      set_cogl_texture (stex, cogl_texture_pixmap_x11_new (ctx, pixmap, FALSE, NULL));
-    }
-  else
-    set_cogl_texture (stex, COGL_INVALID_HANDLE);
-
-  if (priv->create_mipmaps)
-    meta_texture_tower_set_base_texture (priv->paint_tower, priv->texture);
-}
-
-/**
- * meta_shaped_texture_get_texture:
- * @stex: The #MetaShapedTexture
- *
- * Returns: (transfer none): the unshaped texture
- */
-CoglHandle
-meta_shaped_texture_get_texture (MetaShapedTexture *stex)
-{
-  g_return_val_if_fail (META_IS_SHAPED_TEXTURE (stex), COGL_INVALID_HANDLE);
-  return stex->priv->texture;
-}
-
-/**
- * meta_shaped_texture_set_clip_region:
- * @stex: a #MetaShapedTexture
- * @clip_region: (transfer full): the region of the texture that
- *   is visible and should be painted.
- *
- * Provides a hint to the texture about what areas of the texture
- * are not completely obscured and thus need to be painted. This
- * is an optimization and is not supposed to have any effect on
- * the output.
- *
- * Typically a parent container will set the clip region before
- * painting its children, and then unset it afterwards.
- */
-void
-meta_shaped_texture_set_clip_region (MetaShapedTexture *stex,
-				     cairo_region_t    *clip_region)
-{
-  MetaShapedTexturePrivate *priv;
-
-  g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
-
-  priv = stex->priv;
-
-  if (priv->clip_region)
-    {
-      cairo_region_destroy (priv->clip_region);
-      priv->clip_region = NULL;
-    }
-
-  if (clip_region)
-    priv->clip_region = cairo_region_copy (clip_region);
-  else
-    priv->clip_region = NULL;
-}
-
-/**
- * meta_shaped_texture_get_image:
- * @stex: A #MetaShapedTexture
- * @clip: A clipping rectangle, to help prevent extra processing.
- * In the case that the clipping rectangle is partially or fully
- * outside the bounds of the texture, the rectangle will be clipped.
- *
- * Flattens the two layers of the shaped texture into one ARGB32
- * image by alpha blending the two images, and returns the flattened
- * image.
- *
- * Returns: (transfer full): a new cairo surface to be freed with
- * cairo_surface_destroy().
- */
-cairo_surface_t *
-meta_shaped_texture_get_image (MetaShapedTexture     *stex,
-                               cairo_rectangle_int_t *clip)
-{
-  CoglHandle texture, mask_texture;
-  cairo_rectangle_int_t texture_rect = { 0, 0, 0, 0 };
-  cairo_surface_t *surface;
-
-  g_return_val_if_fail (META_IS_SHAPED_TEXTURE (stex), NULL);
-
-  texture = stex->priv->texture;
-
-  if (texture == NULL)
-    return NULL;
-
-  texture_rect.width = cogl_texture_get_width (texture);
-  texture_rect.height = cogl_texture_get_height (texture);
-
-  if (clip != NULL)
-    {
-      /* GdkRectangle is just a typedef of cairo_rectangle_int_t,
-       * so we can use the gdk_rectangle_* APIs on these. */
-      if (!gdk_rectangle_intersect (&texture_rect, clip, clip))
-        return NULL;
-    }
-
-  if (clip != NULL)
-    texture = cogl_texture_new_from_sub_texture (texture,
-                                                 clip->x,
-                                                 clip->y,
-                                                 clip->width,
-                                                 clip->height);
-
-  surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
-                                        cogl_texture_get_width (texture),
-                                        cogl_texture_get_height (texture));
-
-  cogl_texture_get_data (texture, CLUTTER_CAIRO_FORMAT_ARGB32,
-                         cairo_image_surface_get_stride (surface),
-                         cairo_image_surface_get_data (surface));
-
-  cairo_surface_mark_dirty (surface);
-
-  if (clip != NULL)
-    cogl_object_unref (texture);
-
-  mask_texture = stex->priv->mask_texture;
-  if (mask_texture != COGL_INVALID_HANDLE)
-    {
-      cairo_t *cr;
-      cairo_surface_t *mask_surface;
-
-      if (clip != NULL)
-        mask_texture = cogl_texture_new_from_sub_texture (mask_texture,
-                                                          clip->x,
-                                                          clip->y,
-                                                          clip->width,
-                                                          clip->height);
-
-      mask_surface = cairo_image_surface_create (CAIRO_FORMAT_A8,
-                                                 cogl_texture_get_width (mask_texture),
-                                                 cogl_texture_get_height (mask_texture));
-
-      cogl_texture_get_data (mask_texture, COGL_PIXEL_FORMAT_A_8,
-                             cairo_image_surface_get_stride (mask_surface),
-                             cairo_image_surface_get_data (mask_surface));
-
-      cairo_surface_mark_dirty (mask_surface);
-
-      cr = cairo_create (surface);
-      cairo_set_source_surface (cr, mask_surface, 0, 0);
-      cairo_set_operator (cr, CAIRO_OPERATOR_DEST_IN);
-      cairo_paint (cr);
-      cairo_destroy (cr);
-
-      cairo_surface_destroy (mask_surface);
-
-      if (clip != NULL)
-        cogl_object_unref (mask_texture);
-    }
-
-  return surface;
-}

src/compositor/meta-texture-rectangle.c

@@ -1,101 +0,0 @@
-/*
- * texture rectangle
- *
- * A small utility function to help create a rectangle texture
- *
- * Authored By Neil Roberts  <neil@linux.intel.com>
- *
- * Copyright (C) 2011, 2012 Intel Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#include <config.h>
-
-#define CLUTTER_ENABLE_EXPERIMENTAL_API
-#define COGL_ENABLE_EXPERIMENTAL_API
-
-#include <clutter/clutter.h>
-#include "meta-texture-rectangle.h"
-
-CoglTexture *
-meta_texture_rectangle_new (unsigned int width,
-                            unsigned int height,
-                            CoglPixelFormat format,
-                            CoglPixelFormat internal_format,
-                            unsigned int rowstride,
-                            const guint8 *data,
-                            GError **error)
-{
-  ClutterBackend *backend =
-    clutter_get_default_backend ();
-  CoglContext *context =
-    clutter_backend_get_cogl_context (backend);
-  CoglTextureRectangle *tex_rect;
-
-  tex_rect = cogl_texture_rectangle_new_with_size (context,
-                                                   width, height,
-                                                   internal_format,
-                                                   error);
-  if (tex_rect == NULL)
-    return NULL;
-
-  if (data)
-    cogl_texture_set_region (COGL_TEXTURE (tex_rect),
-                             0, 0, /* src_x/y */
-                             0, 0, /* dst_x/y */
-                             width, height, /* dst_width/height */
-                             width, height, /* width/height */
-                             format,
-                             rowstride,
-                             data);
-
-  return COGL_TEXTURE (tex_rect);
-}
-
-static void
-texture_rectangle_check_cb (CoglTexture *sub_texture,
-                            const float *sub_texture_coords,
-                            const float *meta_coords,
-                            void *user_data)
-{
-  gboolean *result = user_data;
-
-  if (cogl_is_texture_rectangle (sub_texture))
-    *result = TRUE;
-}
-
-/* Determines if the given texture is using a rectangle texture as its
- * primitive texture type. Eventually this function could be replaced
- * with cogl_texture_get_type if Cogl makes that public.
- *
- * http://git.gnome.org/browse/cogl/commit/?h=8012eee31
- */
-gboolean
-meta_texture_rectangle_check (CoglTexture *texture)
-{
-  gboolean result = FALSE;
-
-  cogl_meta_texture_foreach_in_region (COGL_META_TEXTURE (texture),
-                                       0.0f, 0.0f, /* tx_1 / ty_1 */
-                                       1.0f, 1.0f, /* tx_2 / ty_2 */
-                                       COGL_PIPELINE_WRAP_MODE_REPEAT,
-                                       COGL_PIPELINE_WRAP_MODE_REPEAT,
-                                       texture_rectangle_check_cb,
-                                       &result);
-
-  return result;
-}

src/compositor/meta-texture-rectangle.h

@@ -1,47 +0,0 @@
-/*
- * texture rectangle
- *
- * A small utility function to help create a rectangle texture
- *
- * Authored By Neil Roberts  <neil@linux.intel.com>
- *
- * Copyright (C) 2011 Intel Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#ifndef __META_TEXTURE_RECTANGLE_H__
-#define __META_TEXTURE_RECTANGLE_H__
-
-#include <cogl/cogl.h>
-
-G_BEGIN_DECLS
-
-CoglTexture *
-meta_texture_rectangle_new (unsigned int width,
-                            unsigned int height,
-                            CoglPixelFormat format,
-                            CoglPixelFormat internal_format,
-                            unsigned int rowstride,
-                            const guint8 *data,
-                            GError **error);
-
-gboolean
-meta_texture_rectangle_check (CoglTexture *texture);
-
-G_END_DECLS
-
-#endif /* __META_TEXTURE_RECTANGLE_H__ */

src/compositor/meta-texture-tower.c

@@ -1,624 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-/*
- * MetaTextureTower
- *
- * Mipmap emulation by creation of scaled down images
- *
- * Copyright (C) 2009 Red Hat, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#include <math.h>
-#include <string.h>
-
-#include "meta-texture-tower.h"
-#include "meta-texture-rectangle.h"
-
-#ifndef M_LOG2E
-#define M_LOG2E 1.4426950408889634074
-#endif
-
-#define MAX_TEXTURE_LEVELS 12
-
-/* If the texture format in memory doesn't match this, then Mesa
- * will do the conversion, so things will still work, but it might
- * be slow depending on how efficient Mesa is. These should be the
- * native formats unless the display is 16bpp. If conversions
- * here are a bottleneck, investigate whether we are converting when
- * storing window data *into* the texture before adding extra code
- * to handle multiple texture formats.
- */
-#if G_BYTE_ORDER == G_LITTLE_ENDIAN
-#define TEXTURE_FORMAT COGL_PIXEL_FORMAT_BGRA_8888_PRE
-#else
-#define TEXTURE_FORMAT COGL_PIXEL_FORMAT_ARGB_8888_PRE
-#endif
-
-typedef struct
-{
-  guint16 x1;
-  guint16 y1;
-  guint16 x2;
-  guint16 y2;
-} Box;
-
-struct _MetaTextureTower
-{
-  int n_levels;
-  CoglHandle textures[MAX_TEXTURE_LEVELS];
-  CoglHandle fbos[MAX_TEXTURE_LEVELS];
-  Box invalid[MAX_TEXTURE_LEVELS];
-};
-
-/**
- * meta_texture_tower_new:
- *
- * Creates a new texture tower. The base texture has to be set with
- * meta_texture_tower_set_base_texture() before use.
- *
- * Return value: the new texture tower. Free with meta_texture_tower_free()
- */
-MetaTextureTower *
-meta_texture_tower_new (void)
-{
-  MetaTextureTower *tower;
-
-  tower = g_slice_new0 (MetaTextureTower);
-
-  return tower;
-}
-
-/**
- * meta_texture_tower_free:
- * @tower: a #MetaTextureTower
- *
- * Frees a texture tower created with meta_texture_tower_new().
- */
-void
-meta_texture_tower_free (MetaTextureTower *tower)
-{
-  g_return_if_fail (tower != NULL);
-
-  meta_texture_tower_set_base_texture (tower, COGL_INVALID_HANDLE);
-
-  g_slice_free (MetaTextureTower, tower);
-}
-
-/**
- * meta_texture_tower_set_base_texture:
- * @tower: a #MetaTextureTower
- * @texture: the new texture used as a base for scaled down versions
- *
- * Sets the base texture that is the scaled texture that the
- * scaled textures of the tower are derived from. The texture itself
- * will be used as level 0 of the tower and will be referenced until
- * unset or until the tower is freed.
- */
-void
-meta_texture_tower_set_base_texture (MetaTextureTower *tower,
-                                     CoglHandle        texture)
-{
-  int i;
-
-  g_return_if_fail (tower != NULL);
-
-  if (texture == tower->textures[0])
-    return;
-
-  if (tower->textures[0] != COGL_INVALID_HANDLE)
-    {
-      for (i = 1; i < tower->n_levels; i++)
-        {
-          if (tower->textures[i] != COGL_INVALID_HANDLE)
-            {
-              cogl_handle_unref (tower->textures[i]);
-              tower->textures[i] = COGL_INVALID_HANDLE;
-            }
-
-          if (tower->fbos[i] != COGL_INVALID_HANDLE)
-            {
-              cogl_handle_unref (tower->fbos[i]);
-              tower->fbos[i] = COGL_INVALID_HANDLE;
-            }
-        }
-
-      cogl_handle_unref (tower->textures[0]);
-    }
-
-  tower->textures[0] = texture;
-
-  if (tower->textures[0] != COGL_INVALID_HANDLE)
-    {
-      int width, height;
-
-      cogl_handle_ref (tower->textures[0]);
-
-      width = cogl_texture_get_width (tower->textures[0]);
-      height = cogl_texture_get_height (tower->textures[0]);
-
-      tower->n_levels = 1 + MAX ((int)(M_LOG2E * log (width)), (int)(M_LOG2E * log (height)));
-      tower->n_levels = MIN(tower->n_levels, MAX_TEXTURE_LEVELS);
-
-      meta_texture_tower_update_area (tower, 0, 0, width, height);
-    }
-  else
-    {
-      tower->n_levels = 0;
-    }
-}
-
-/**
- * meta_texture_tower_update_area:
- * @tower: a #MetaTextureTower
- * @x: X coordinate of upper left of rectangle that changed
- * @y: Y coordinate of upper left of rectangle that changed
- * @width: width of rectangle that changed
- * @height: height rectangle that changed
- *
- * Mark a region of the base texture as having changed; the next
- * time a scaled down version of the base texture is retrieved,
- * the appropriate area of the scaled down texture will be updated.
- */
-void
-meta_texture_tower_update_area (MetaTextureTower *tower,
-                                int               x,
-                                int               y,
-                                int               width,
-                                int               height)
-{
-  int texture_width, texture_height;
-  Box invalid;
-  int i;
-
-  g_return_if_fail (tower != NULL);
-
-  if (tower->textures[0] == COGL_INVALID_HANDLE)
-    return;
-
-  texture_width = cogl_texture_get_width (tower->textures[0]);
-  texture_height = cogl_texture_get_height (tower->textures[0]);
-
-  invalid.x1 = x;
-  invalid.y1 = y;
-  invalid.x2 = x + width;
-  invalid.y2 = y + height;
-
-  for (i = 1; i < tower->n_levels; i++)
-    {
-      texture_width = MAX (1, texture_width / 2);
-      texture_height = MAX (1, texture_height / 2);
-
-      invalid.x1 = invalid.x1 / 2;
-      invalid.y1 = invalid.y1 / 2;
-      invalid.x2 = MIN (texture_width, (invalid.x2 + 1) / 2);
-      invalid.y2 = MIN (texture_height, (invalid.y2 + 1) / 2);
-
-      if (tower->invalid[i].x1 == tower->invalid[i].x2 ||
-          tower->invalid[i].y1 == tower->invalid[i].y2)
-        {
-          tower->invalid[i] = invalid;
-        }
-      else
-        {
-          tower->invalid[i].x1 = MIN (tower->invalid[i].x1, invalid.x1);
-          tower->invalid[i].y1 = MIN (tower->invalid[i].y1, invalid.y1);
-          tower->invalid[i].x2 = MAX (tower->invalid[i].x2, invalid.x2);
-          tower->invalid[i].y2 = MAX (tower->invalid[i].y2, invalid.y2);
-        }
-    }
-}
-
-/* It generally looks worse if we scale up a window texture by even a
- * small amount than if we scale it down using bilinear filtering, so
- * we always pick the *larger* adjacent level. */
-#define LOD_BIAS (-0.49)
-
-/* This determines the appropriate level of detail to use when drawing the
- * texture, in a way that corresponds to what the GL specification does
- * when mip-mapping. This is probably fancier and slower than what we need,
- * but we do the computation only once each time we paint a window, and
- * its easier to just use the equations from the specification than to
- * come up with something simpler.
- *
- * If window is being painted at an angle from the viewer, then we have to
- * pick a point in the texture; we use the middle of the texture (which is
- * why the width/height are passed in.) This is not the normal case for
- * Meta.
- */
-static int
-get_paint_level (int width, int height)
-{
-  CoglMatrix projection, modelview, pm;
-  float v[4];
-  double viewport_width, viewport_height;
-  double u0, v0;
-  double xc, yc, wc;
-  double dxdu_, dxdv_, dydu_, dydv_;
-  double det_, det_sq;
-  double rho_sq;
-  double lambda;
-
-  /* See
-   * http://www.opengl.org/registry/doc/glspec32.core.20090803.pdf
-   * Section 3.8.9, p. 1.6.2. Here we have
-   *
-   *  u(x,y) = x_o;
-   *  v(x,y) = y_o;
-   *
-   * Since we are mapping 1:1 from object coordinates into pixel
-   * texture coordinates, the clip coordinates are:
-   *
-   *  (x_c)                               (x_o)        (u)
-   *  (y_c) = (M_projection)(M_modelview) (y_o) = (PM) (v)
-   *  (z_c)                               (z_o)        (0)
-   *  (w_c)                               (w_o)        (1)
-   */
-
-  cogl_get_projection_matrix (&projection);
-  cogl_get_modelview_matrix (&modelview);
-
-  cogl_matrix_multiply (&pm, &projection, &modelview);
-
-  cogl_get_viewport (v);
-  viewport_width = v[2];
-  viewport_height = v[3];
-
-  u0 = width / 2.;
-  v0 = height / 2.;
-
-  xc = pm.xx * u0 + pm.xy * v0 + pm.xw;
-  yc = pm.yx * u0 + pm.yy * v0 + pm.yw;
-  wc = pm.wx * u0 + pm.wy * v0 + pm.ww;
-
-  /* We'll simplify the equations below for a bit of micro-optimization.
-   * The commented out code is the unsimplified version.
-
-  // Partial derivates of window coordinates:
-  //
-  //  x_w = 0.5 * viewport_width * x_c / w_c + viewport_center_x
-  //  y_w = 0.5 * viewport_height * y_c / w_c + viewport_center_y
-  //
-  // with respect to u, v, using
-  // d(a/b)/dx = da/dx * (1/b) - a * db/dx / (b^2)
-
-  dxdu = 0.5 * viewport_width * (pm.xx - pm.wx * (xc/wc)) / wc;
-  dxdv = 0.5 * viewport_width * (pm.xy - pm.wy * (xc/wc)) / wc;
-  dydu = 0.5 * viewport_height * (pm.yx - pm.wx * (yc/wc)) / wc;
-  dydv = 0.5 * viewport_height * (pm.yy - pm.wy * (yc/wc)) / wc;
-
-  // Compute the inverse partials as the matrix inverse
-  det = dxdu * dydv - dxdv * dydu;
-
-  dudx =   dydv / det;
-  dudy = - dxdv / det;
-  dvdx = - dydu / det;
-  dvdy =   dvdu / det;
-
-  // Scale factor; maximum of the distance in texels for a change of 1 pixel
-  // in the X direction or 1 pixel in the Y direction
-  rho = MAX (sqrt (dudx * dudx + dvdx * dvdx), sqrt(dudy * dudy + dvdy * dvdy));
-
-  // Level of detail
-  lambda = log2 (rho) + LOD_BIAS;
-  */
-
-  /* dxdu * wc, etc */
-  dxdu_ = 0.5 * viewport_width * (pm.xx - pm.wx * (xc/wc));
-  dxdv_ = 0.5 * viewport_width * (pm.xy - pm.wy * (xc/wc));
-  dydu_ = 0.5 * viewport_height * (pm.yx - pm.wx * (yc/wc));
-  dydv_ = 0.5 * viewport_height * (pm.yy - pm.wy * (yc/wc));
-
-  /* det * wc^2 */
-  det_ = dxdu_ * dydv_ - dxdv_ * dydu_;
-  det_sq = det_ * det_;
-  if (det_sq == 0.0)
-    return -1;
-
-  /* (rho * det * wc)^2 */
-  rho_sq = MAX (dydv_ * dydv_ + dydu_ * dydu_, dxdv_ * dxdv_ + dxdu_ * dxdu_);
-  lambda = 0.5 * M_LOG2E * log (rho_sq * wc * wc / det_sq) + LOD_BIAS;
-
-#if 0
-  g_print ("%g %g %g\n", 0.5 * viewport_width * pm.xx / pm.ww, 0.5 * viewport_height * pm.yy / pm.ww, lambda);
-#endif
-
-  if (lambda <= 0.)
-    return 0;
-  else
-    return (int)(0.5 + lambda);
-}
-
-static gboolean
-is_power_of_two (int x)
-{
-  return (x & (x - 1)) == 0;
-}
-
-static void
-texture_tower_create_texture (MetaTextureTower *tower,
-                              int               level,
-                              int               width,
-                              int               height)
-{
-  if ((!is_power_of_two (width) || !is_power_of_two (height)) &&
-      meta_texture_rectangle_check (tower->textures[level - 1]))
-    {
-      tower->textures[level] =
-        meta_texture_rectangle_new (width, height,
-                                    /* data format */
-                                    TEXTURE_FORMAT,
-                                    /* internal cogl format */
-                                    TEXTURE_FORMAT,
-                                    /* rowstride */
-                                    width * 4,
-                                    /* data */
-                                    NULL,
-                                    /* error */
-                                    NULL);
-    }
-  else
-    {
-      tower->textures[level] = cogl_texture_new_with_size (width, height,
-                                                           COGL_TEXTURE_NO_AUTO_MIPMAP,
-                                                           TEXTURE_FORMAT);
-    }
-
-  tower->invalid[level].x1 = 0;
-  tower->invalid[level].y1 = 0;
-  tower->invalid[level].x2 = width;
-  tower->invalid[level].y2 = height;
-}
-
-static gboolean
-texture_tower_revalidate_fbo (MetaTextureTower *tower,
-                              int               level)
-{
-  CoglHandle source_texture = tower->textures[level - 1];
-  int source_texture_width = cogl_texture_get_width (source_texture);
-  int source_texture_height = cogl_texture_get_height (source_texture);
-  CoglHandle dest_texture = tower->textures[level];
-  int dest_texture_width = cogl_texture_get_width (dest_texture);
-  int dest_texture_height = cogl_texture_get_height (dest_texture);
-  Box *invalid = &tower->invalid[level];
-  CoglMatrix modelview;
-
-  if (tower->fbos[level] == COGL_INVALID_HANDLE)
-    tower->fbos[level] = cogl_offscreen_new_to_texture (dest_texture);
-
-  if (tower->fbos[level] == COGL_INVALID_HANDLE)
-    return FALSE;
-
-  cogl_push_framebuffer (tower->fbos[level]);
-
-  cogl_ortho (0, dest_texture_width, dest_texture_height, 0, -1., 1.);
-
-  cogl_matrix_init_identity (&modelview);
-  cogl_set_modelview_matrix (&modelview);
-
-  cogl_set_source_texture (tower->textures[level - 1]);
-  cogl_rectangle_with_texture_coords (invalid->x1, invalid->y1,
-                                      invalid->x2, invalid->y2,
-                                      (2. * invalid->x1) / source_texture_width,
-                                      (2. * invalid->y1) / source_texture_height,
-                                      (2. * invalid->x2) / source_texture_width,
-                                      (2. * invalid->y2) / source_texture_height);
-
-  cogl_pop_framebuffer ();
-
-  return TRUE;
-}
-
-static void
-fill_copy (guchar       *buf,
-           const guchar *source,
-           int           width)
-{
-  memcpy (buf, source, width * 4);
-}
-
-static void
-fill_scale_down (guchar       *buf,
-                 const guchar *source,
-                 int           width)
-{
-  while (width > 1)
-    {
-      buf[0] = (source[0] + source[4]) / 2;
-      buf[1] = (source[1] + source[5]) / 2;
-      buf[2] = (source[2] + source[6]) / 2;
-      buf[3] = (source[3] + source[7]) / 2;
-
-      buf += 4;
-      source += 8;
-      width -= 2;
-    }
-
-  if (width > 0)
-    {
-      buf[0] = source[0] / 2;
-      buf[1] = source[1] / 2;
-      buf[2] = source[2] / 2;
-      buf[3] = source[3] / 2;
-    }
-}
-
-static void
-texture_tower_revalidate_client (MetaTextureTower *tower,
-                                 int               level)
-{
-  CoglHandle source_texture = tower->textures[level - 1];
-  int source_texture_width = cogl_texture_get_width (source_texture);
-  int source_texture_height = cogl_texture_get_height (source_texture);
-  guint source_rowstride;
-  guchar *source_data;
-  CoglHandle dest_texture = tower->textures[level];
-  int dest_texture_width = cogl_texture_get_width (dest_texture);
-  int dest_texture_height = cogl_texture_get_height (dest_texture);
-  int dest_x = tower->invalid[level].x1;
-  int dest_y = tower->invalid[level].y1;
-  int dest_width = tower->invalid[level].x2 - tower->invalid[level].x1;
-  int dest_height = tower->invalid[level].y2 - tower->invalid[level].y1;
-  guchar *dest_data;
-  guchar *source_tmp1 = NULL, *source_tmp2 = NULL;
-  int i, j;
-
-  source_rowstride = source_texture_width * 4;
-
-  source_data = g_malloc (source_texture_height * source_rowstride);
-  cogl_texture_get_data (source_texture, TEXTURE_FORMAT, source_rowstride,
-                         source_data);
-
-  dest_data = g_malloc (dest_height * dest_width * 4);
-
-  if (dest_texture_height < source_texture_height)
-    {
-      source_tmp1 = g_malloc (dest_width * 4);
-      source_tmp2 = g_malloc (dest_width * 4);
-    }
-
-  for (i = 0; i < dest_height; i++)
-    {
-      guchar *dest_row = dest_data + i * dest_width * 4;
-      if (dest_texture_height < source_texture_height)
-        {
-          guchar *source1, *source2;
-          guchar *dest;
-
-          if (dest_texture_width < source_texture_width)
-            {
-              fill_scale_down (source_tmp1,
-                               source_data + ((i + dest_y) * 2) * source_rowstride + dest_x * 2 * 4,
-                               dest_width * 2);
-              fill_scale_down (source_tmp2,
-                               source_data + ((i + dest_y) * 2 + 1) * source_rowstride + dest_x * 2 * 4,
-                               dest_width * 2);
-            }
-          else
-            {
-              fill_copy (source_tmp1,
-                         source_data + ((i + dest_y) * 2) * source_rowstride + dest_x * 4,
-                         dest_width);
-              fill_copy (source_tmp2,
-                         source_data + ((i + dest_y) * 2 + 1) * source_rowstride + dest_x * 4,
-                         dest_width);
-            }
-
-          source1 = source_tmp1;
-          source2 = source_tmp2;
-
-          dest = dest_row;
-          for (j = 0; j < dest_width * 4; j++)
-            *(dest++) = (*(source1++) + *(source2++)) / 2;
-        }
-      else
-        {
-          if (dest_texture_width < source_texture_width)
-            fill_scale_down (dest_row,
-                             source_data + (i + dest_y) * source_rowstride + dest_x * 2 * 4,
-                             dest_width * 2);
-          else
-            fill_copy (dest_row,
-                       source_data + (i + dest_y) * source_rowstride,
-                       dest_width);
-        }
-    }
-
-  cogl_texture_set_region (dest_texture,
-                           0, 0,
-                           dest_x, dest_y,
-                           dest_width, dest_height,
-                           dest_width, dest_height,
-                           TEXTURE_FORMAT,
-                           4 * dest_width,
-                           dest_data);
-
-  if (dest_texture_height < source_texture_height)
-    {
-      g_free (source_tmp1);
-      g_free (source_tmp2);
-    }
-
-  g_free (source_data);
-  g_free (dest_data);
-}
-
-static void
-texture_tower_revalidate (MetaTextureTower *tower,
-                          int               level)
-{
-  if (!texture_tower_revalidate_fbo (tower, level))
-    texture_tower_revalidate_client (tower, level);
-}
-
-/**
- * meta_texture_tower_get_paint_texture:
- * @tower: a #MetaTextureTower
- *
- * Gets the texture from the tower that best matches the current
- * rendering scale. (On the assumption here the texture is going to
- * be rendered with vertex coordinates that correspond to its
- * size in pixels, so a 200x200 texture will be rendered on the
- * rectangle (0, 0, 200, 200).
- *
- * Return value: the COGL texture handle to use for painting, or
- *  %COGL_INVALID_HANDLE if no base texture has yet been set.
- */
-CoglHandle
-meta_texture_tower_get_paint_texture (MetaTextureTower *tower)
-{
-  int texture_width, texture_height;
-  int level;
-
-  g_return_val_if_fail (tower != NULL, COGL_INVALID_HANDLE);
-
-  if (tower->textures[0] == COGL_INVALID_HANDLE)
-    return COGL_INVALID_HANDLE;
-
-  texture_width = cogl_texture_get_width (tower->textures[0]);
-  texture_height = cogl_texture_get_height (tower->textures[0]);
-
-  level = get_paint_level(texture_width, texture_height);
-  if (level < 0) /* singular paint matrix, scaled to nothing */
-    return COGL_INVALID_HANDLE;
-  level = MIN (level, tower->n_levels - 1);
-
-  if (tower->textures[level] == COGL_INVALID_HANDLE ||
-      (tower->invalid[level].x2 != tower->invalid[level].x1 &&
-       tower->invalid[level].y2 != tower->invalid[level].y1))
-    {
-      int i;
-
-      for (i = 1; i <= level; i++)
-       {
-         /* Use "floor" convention here to be consistent with the NPOT texture extension */
-         texture_width = MAX (1, texture_width / 2);
-         texture_height = MAX (1, texture_height / 2);
-
-         if (tower->textures[i] == COGL_INVALID_HANDLE)
-           texture_tower_create_texture (tower, i, texture_width, texture_height);
-       }
-
-      for (i = 1; i <= level; i++)
-       {
-         if (tower->invalid[level].x2 != tower->invalid[level].x1 &&
-             tower->invalid[level].y2 != tower->invalid[level].y1)
-           texture_tower_revalidate (tower, i);
-       }
-   }
-
-  return tower->textures[level];
-}

src/compositor/meta-texture-tower.h

@@ -1,69 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-/*
- * MetaTextureTower
- *
- * Mipmap emulation by creation of scaled down images
- *
- * Copyright (C) 2009 Red Hat, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#ifndef __META_TEXTURE_TOWER_H__
-#define __META_TEXTURE_TOWER_H__
-
-#include <clutter/clutter.h>
-
-G_BEGIN_DECLS
-
-/**
- * SECTION:MetaTextureTower
- * @short_description: mipmap emulation by creation of scaled down images
- *
- * A #MetaTextureTower is used to get good looking scaled down images when
- * we can't use the GL drivers mipmap support. There are two separate reasons
- *
- *  - Some cards (including radeon cards <= r5xx) only support
- *    TEXTURE_RECTANGLE_ARB and not NPOT textures. Rectangular textures
- *    are defined not to support mipmapping.
- *  - Even when NPOT textures are available, the combination of NPOT
- *    textures, texture_from_pixmap, and mipmapping doesn't typically
- *    work, since the X server doesn't allocate pixmaps in the right
- *    layout for mipmapping.
- *
- * So, what we do is create the "mipmap" levels ourselves by successive
- * power-of-two scaledowns, and when rendering pick the single texture
- * that best matches the scale we are rendering at. (Since we aren't
- * typically using perspective transforms, we'll frequently have a single
- * scale for the entire texture.)
- */
-
-typedef struct _MetaTextureTower MetaTextureTower;
-
-MetaTextureTower *meta_texture_tower_new               (void);
-void              meta_texture_tower_free              (MetaTextureTower *tower);
-void              meta_texture_tower_set_base_texture  (MetaTextureTower *tower,
-                                                        CoglHandle        texture);
-void              meta_texture_tower_update_area       (MetaTextureTower *tower,
-                                                        int               x,
-                                                        int               y,
-                                                        int               width,
-                                                        int               height);
-CoglHandle        meta_texture_tower_get_paint_texture (MetaTextureTower *tower);
-
-G_BEGIN_DECLS
-
-#endif /* __META_TEXTURE_TOWER_H__ */

src/compositor/meta-window-actor-private.h

@@ -1,60 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
-#ifndef META_WINDOW_ACTOR_PRIVATE_H
-#define META_WINDOW_ACTOR_PRIVATE_H
-
-#include <config.h>
-
-#include <X11/extensions/Xdamage.h>
-#include <meta/compositor-mutter.h>
-
-MetaWindowActor *meta_window_actor_new (MetaWindow *window);
-
-void meta_window_actor_destroy   (MetaWindowActor *self);
-
-void meta_window_actor_show (MetaWindowActor *self,
-                             MetaCompEffect   effect);
-void meta_window_actor_hide (MetaWindowActor *self,
-                             MetaCompEffect   effect);
-
-void meta_window_actor_maximize   (MetaWindowActor *self,
-                                   MetaRectangle   *old_rect,
-                                   MetaRectangle   *new_rect);
-void meta_window_actor_unmaximize (MetaWindowActor *self,
-                                   MetaRectangle   *old_rect,
-                                   MetaRectangle   *new_rect);
-
-void meta_window_actor_process_damage (MetaWindowActor    *self,
-                                       XDamageNotifyEvent *event);
-
-void meta_window_actor_pre_paint      (MetaWindowActor    *self);
-
-void meta_window_actor_invalidate_shadow (MetaWindowActor *self);
-
-void meta_window_actor_set_redirected (MetaWindowActor *self, gboolean state);
-
-gboolean meta_window_actor_should_unredirect (MetaWindowActor *self);
-
-void meta_window_actor_get_shape_bounds (MetaWindowActor       *self,
-                                          cairo_rectangle_int_t *bounds);
-
-gboolean meta_window_actor_effect_in_progress  (MetaWindowActor *self);
-void     meta_window_actor_sync_actor_position (MetaWindowActor *self);
-void     meta_window_actor_sync_visibility     (MetaWindowActor *self);
-void     meta_window_actor_update_shape        (MetaWindowActor *self);
-void     meta_window_actor_update_opacity      (MetaWindowActor *self);
-void     meta_window_actor_mapped              (MetaWindowActor *self);
-void     meta_window_actor_unmapped            (MetaWindowActor *self);
-
-cairo_region_t *meta_window_actor_get_obscured_region (MetaWindowActor *self);
-
-void meta_window_actor_set_visible_region         (MetaWindowActor *self,
-                                                   cairo_region_t  *visible_region);
-void meta_window_actor_set_visible_region_beneath (MetaWindowActor *self,
-                                                   cairo_region_t  *beneath_region);
-void meta_window_actor_reset_visible_regions      (MetaWindowActor *self);
-
-void meta_window_actor_effect_completed (MetaWindowActor *actor,
-                                         gulong           event);
-
-#endif /* META_WINDOW_ACTOR_PRIVATE_H */

src/compositor/meta-window-group.c

@@ -1,363 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
-#include <config.h>
-
-#define _ISOC99_SOURCE /* for roundf */
-#include <math.h>
-
-#include <gdk/gdk.h> /* for gdk_rectangle_intersect() */
-
-#include "compositor-private.h"
-#include "meta-window-actor-private.h"
-#include "meta-window-group.h"
-#include "meta-background-actor-private.h"
-
-struct _MetaWindowGroupClass
-{
-  ClutterGroupClass parent_class;
-};
-
-struct _MetaWindowGroup
-{
-  ClutterGroup parent;
-
-  MetaScreen *screen;
-};
-
-G_DEFINE_TYPE (MetaWindowGroup, meta_window_group, CLUTTER_TYPE_GROUP);
-
-/* This file uses pixel-aligned region computation to determine what
- * can be clipped out. This only really works if everything is aligned
- * to the pixel grid - not scaled or rotated and at integer offsets.
- *
- * (This could be relaxed - if we turned off filtering for unscaled
- * windows then windows would be, by definition aligned to the pixel
- * grid. And for rectangular windows without a shape, the outline that
- * we draw for an unrotated window is always a rectangle because we
- * don't use antialasing for the window boundary - with or without
- * filtering, with or without a scale. But figuring out exactly
- * what pixels will be drawn by the graphics system in these cases
- * gets tricky, so we just go for the easiest part - no scale,
- * and at integer offsets.)
- *
- * The way we check for pixel-aligned is by looking at the
- * transformation into screen space of the allocation box of an actor
- * and and checking if the corners are "close enough" to integral
- * pixel values.
- */
-
-/* The definition of "close enough" to integral pixel values is
- * equality when we convert to 24.8 fixed-point.
- */
-static inline int
-round_to_fixed (float x)
-{
-  return roundf (x * 256);
-}
-
-/* This helper function checks if (according to our fixed point precision)
- * the vertices @verts form a box of width @widthf and height @heightf
- * located at integral coordinates. These coordinates are returned
- * in @x_origin and @y_origin.
- */
-static gboolean
-vertices_are_untransformed (ClutterVertex *verts,
-                            float          widthf,
-                            float          heightf,
-                            int           *x_origin,
-                            int           *y_origin)
-{
-  int width, height;
-  int v0x, v0y, v1x, v1y, v2x, v2y, v3x, v3y;
-  int x, y;
-
-  width = round_to_fixed (widthf); height = round_to_fixed (heightf);
-
-  v0x = round_to_fixed (verts[0].x); v0y = round_to_fixed (verts[0].y);
-  v1x = round_to_fixed (verts[1].x); v1y = round_to_fixed (verts[1].y);
-  v2x = round_to_fixed (verts[2].x); v2y = round_to_fixed (verts[2].y);
-  v3x = round_to_fixed (verts[3].x); v3y = round_to_fixed (verts[3].y);
-
-  /* Using shifting for converting fixed => int, gets things right for
-   * negative values. / 256. wouldn't do the same
-   */
-  x = v0x >> 8;
-  y = v0y >> 8;
-
-  /* At integral coordinates? */
-  if (x * 256 != v0x || y * 256 != v0y)
-    return FALSE;
-
-  /* Not scaled? */
-  if (v1x - v0x != width || v2y - v0y != height)
-    return FALSE;
-
-  /* Not rotated/skewed? */
-  if (v0x != v2x || v0y != v1y ||
-      v3x != v1x || v3y != v2y)
-    return FALSE;
-
-  *x_origin = x;
-  *y_origin = y;
-
-  return TRUE;
-}
-
-/* Check if an actor is "untransformed" - which actually means transformed by
- * at most a integer-translation. The integer translation, if any, is returned.
- */
-static gboolean
-actor_is_untransformed (ClutterActor *actor,
-                        int          *x_origin,
-                        int          *y_origin)
-{
-  gfloat widthf, heightf;
-  ClutterVertex verts[4];
-
-  clutter_actor_get_size (actor, &widthf, &heightf);
-  clutter_actor_get_abs_allocation_vertices (actor, verts);
-
-  return vertices_are_untransformed (verts, widthf, heightf, x_origin, y_origin);
-}
-
-/* Help macros to scale from OpenGL <-1,1> coordinates system to
- * window coordinates ranging [0,window-size]. Borrowed from clutter-utils.c
- */
-#define MTX_GL_SCALE_X(x,w,v1,v2) ((((((x) / (w)) + 1.0f) / 2.0f) * (v1)) + (v2))
-#define MTX_GL_SCALE_Y(y,w,v1,v2) ((v1) - (((((y) / (w)) + 1.0f) / 2.0f) * (v1)) + (v2))
-
-/* Check if we're painting the MetaWindowGroup "untransformed". This can
- * differ from the result of actor_is_untransformed(window_group) if we're
- * inside a clone paint. The integer translation, if any, is returned.
- */
-static gboolean
-painting_untransformed (MetaWindowGroup *window_group,
-                        int             *x_origin,
-                        int             *y_origin)
-{
-  CoglMatrix modelview, projection, modelview_projection;
-  ClutterVertex vertices[4];
-  int width, height;
-  float viewport[4];
-  int i;
-
-  cogl_get_modelview_matrix (&modelview);
-  cogl_get_projection_matrix (&projection);
-
-  cogl_matrix_multiply (&modelview_projection,
-                        &projection,
-                        &modelview);
-
-  meta_screen_get_size (window_group->screen, &width, &height);
-
-  vertices[0].x = 0;
-  vertices[0].y = 0;
-  vertices[0].z = 0;
-  vertices[1].x = width;
-  vertices[1].y = 0;
-  vertices[1].z = 0;
-  vertices[2].x = 0;
-  vertices[2].y = height;
-  vertices[2].z = 0;
-  vertices[3].x = width;
-  vertices[3].y = height;
-  vertices[3].z = 0;
-
-  cogl_get_viewport (viewport);
-
-  for (i = 0; i < 4; i++)
-    {
-      float w = 1;
-      cogl_matrix_transform_point (&modelview_projection, &vertices[i].x, &vertices[i].y, &vertices[i].z, &w);
-      vertices[i].x = MTX_GL_SCALE_X (vertices[i].x, w,
-                                      viewport[2], viewport[0]);
-      vertices[i].y = MTX_GL_SCALE_Y (vertices[i].y, w,
-                                      viewport[3], viewport[1]);
-    }
-
-  return vertices_are_untransformed (vertices, width, height, x_origin, y_origin);
-}
-
-static void
-meta_window_group_paint (ClutterActor *actor)
-{
-  cairo_region_t *visible_region;
-  ClutterActor *stage;
-  cairo_rectangle_int_t visible_rect;
-  GList *children, *l;
-  int paint_x_origin, paint_y_origin;
-  int actor_x_origin, actor_y_origin;
-  int paint_x_offset, paint_y_offset;
-
-  MetaWindowGroup *window_group = META_WINDOW_GROUP (actor);
-  MetaCompScreen *info = meta_screen_get_compositor_data (window_group->screen);
-
-  /* Normally we expect an actor to be drawn at it's position on the screen.
-   * However, if we're inside the paint of a ClutterClone, that won't be the
-   * case and we need to compensate. We look at the position of the window
-   * group under the current model-view matrix and the position of the actor.
-   * If they are both simply integer translations, then we can compensate
-   * easily, otherwise we give up.
-   *
-   * Possible cleanup: work entirely in paint space - we can compute the
-   * combination of the model-view matrix with the local matrix for each child
-   * actor and get a total transformation for that actor for how we are
-   * painting currently, and never worry about how actors are positioned
-   * on the stage.
-   */
-  if (!painting_untransformed (window_group, &paint_x_origin, &paint_y_origin) ||
-      !actor_is_untransformed (actor, &actor_x_origin, &actor_y_origin))
-    {
-      CLUTTER_ACTOR_CLASS (meta_window_group_parent_class)->paint (actor);
-      return;
-    }
-
-  paint_x_offset = paint_x_origin - actor_x_origin;
-  paint_y_offset = paint_y_origin - actor_y_origin;
-
-  /* We walk the list from top to bottom (opposite of painting order),
-   * and subtract the opaque area of each window out of the visible
-   * region that we pass to the windows below.
-   */
-  children = clutter_container_get_children (CLUTTER_CONTAINER (actor));
-  children = g_list_reverse (children);
-
-  /* Get the clipped redraw bounds from Clutter so that we can avoid
-   * painting shadows on windows that don't need to be painted in this
-   * frame. In the case of a multihead setup with mismatched monitor
-   * sizes, we could intersect this with an accurate union of the
-   * monitors to avoid painting shadows that are visible only in the
-   * holes. */
-  stage = clutter_actor_get_stage (actor);
-  clutter_stage_get_redraw_clip_bounds (CLUTTER_STAGE (stage),
-                                        &visible_rect);
-
-  visible_region = cairo_region_create_rectangle (&visible_rect);
-
-  if (info->unredirected_window != NULL)
-    {
-      cairo_rectangle_int_t unredirected_rect;
-      MetaWindow *window = meta_window_actor_get_meta_window (info->unredirected_window);
-
-      meta_window_get_outer_rect (window, (MetaRectangle *)&unredirected_rect);
-      cairo_region_subtract_rectangle (visible_region, &unredirected_rect);
-    }
-
-  for (l = children; l; l = l->next)
-    {
-      if (!CLUTTER_ACTOR_IS_VISIBLE (l->data))
-        continue;
-
-      if (l->data == info->unredirected_window)
-        continue;
-
-      /* If an actor has effects applied, then that can change the area
-       * it paints and the opacity, so we no longer can figure out what
-       * portion of the actor is obscured and what portion of the screen
-       * it obscures, so we skip the actor.
-       *
-       * This has a secondary beneficial effect: if a ClutterOffscreenEffect
-       * is applied to an actor, then our clipped redraws interfere with the
-       * caching of the FBO - even if we only need to draw a small portion
-       * of the window right now, ClutterOffscreenEffect may use other portions
-       * of the FBO later. So, skipping actors with effects applied also
-       * prevents these bugs.
-       *
-       * Theoretically, we should check clutter_actor_get_offscreen_redirect()
-       * as well for the same reason, but omitted for simplicity in the
-       * hopes that no-one will do that.
-       */
-      if (clutter_actor_has_effects (l->data))
-        continue;
-
-      if (META_IS_WINDOW_ACTOR (l->data))
-        {
-          MetaWindowActor *window_actor = l->data;
-          int x, y;
-
-          if (!actor_is_untransformed (CLUTTER_ACTOR (window_actor), &x, &y))
-            continue;
-
-          x += paint_x_offset;
-          y += paint_y_offset;
-
-          /* Temporarily move to the coordinate system of the actor */
-          cairo_region_translate (visible_region, - x, - y);
-
-          meta_window_actor_set_visible_region (window_actor, visible_region);
-
-          if (clutter_actor_get_paint_opacity (CLUTTER_ACTOR (window_actor)) == 0xff)
-            {
-              cairo_region_t *obscured_region = meta_window_actor_get_obscured_region (window_actor);
-              if (obscured_region)
-                cairo_region_subtract (visible_region, obscured_region);
-            }
-
-          meta_window_actor_set_visible_region_beneath (window_actor, visible_region);
-          cairo_region_translate (visible_region, x, y);
-        }
-      else if (META_IS_BACKGROUND_ACTOR (l->data))
-        {
-          MetaBackgroundActor *background_actor = l->data;
-          int x, y;
-
-          if (!actor_is_untransformed (CLUTTER_ACTOR (background_actor), &x, &y))
-            continue;
-
-          x += paint_x_offset;
-          y += paint_y_offset;
-
-          cairo_region_translate (visible_region, - x, - y);
-          meta_background_actor_set_visible_region (background_actor, visible_region);
-          cairo_region_translate (visible_region, x, y);
-        }
-    }
-
-  cairo_region_destroy (visible_region);
-
-  CLUTTER_ACTOR_CLASS (meta_window_group_parent_class)->paint (actor);
-
-  /* Now that we are done painting, unset the visible regions (they will
-   * mess up painting clones of our actors)
-   */
-  for (l = children; l; l = l->next)
-    {
-      if (META_IS_WINDOW_ACTOR (l->data))
-        {
-          MetaWindowActor *window_actor = l->data;
-          meta_window_actor_reset_visible_regions (window_actor);
-        }
-      else if (META_IS_BACKGROUND_ACTOR (l->data))
-        {
-          MetaBackgroundActor *background_actor = l->data;
-          meta_background_actor_set_visible_region (background_actor, NULL);
-        }
-    }
-
-  g_list_free (children);
-}
-
-static void
-meta_window_group_class_init (MetaWindowGroupClass *klass)
-{
-  ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
-
-  actor_class->paint = meta_window_group_paint;
-}
-
-static void
-meta_window_group_init (MetaWindowGroup *window_group)
-{
-}
-
-ClutterActor *
-meta_window_group_new (MetaScreen *screen)
-{
-  MetaWindowGroup *window_group;
-
-  window_group = g_object_new (META_TYPE_WINDOW_GROUP, NULL);
-
-  window_group->screen = screen;
-
-  return CLUTTER_ACTOR (window_group);
-}

src/compositor/meta-window-group.h

@@ -1,52 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-
-#ifndef META_WINDOW_GROUP_H
-#define META_WINDOW_GROUP_H
-
-#include <clutter/clutter.h>
-
-#include <meta/screen.h>
-
-/**
- * MetaWindowGroup:
- *
- * This class is a subclass of ClutterGroup with special handling for
- * MetaWindowActor when painting the group. When we are painting a stack
- * of 5-10 maximized windows, the standard bottom-to-top method of
- * drawing every actor results in a tremendous amount of overdraw
- * and can easily max out the available memory bandwidth on a low-end
- * graphics chipset. It's even worse if window textures are being accessed
- * over the AGP bus.
- *
- * The basic technique applied here is to do a pre-pass before painting
- * where we walk window from top to bottom and compute the visible area
- * at each step by subtracting out the windows above it. The visible
- * area is passed to MetaWindowActor which uses it to clip the portion of
- * the window which drawn and avoid redrawing the shadow if it is completely
- * obscured.
- *
- * A caveat is that this is ineffective if applications are using ARGB
- * visuals, since we have no way of knowing whether a window obscures
- * the windows behind it or not. Alternate approaches using the depth
- * or stencil buffer rather than client side regions might be able to
- * handle alpha windows, but the combination of glAlphaFunc and stenciling
- * tends not to be efficient except on newer cards. (And on newer cards
- * we have lots of memory and bandwidth.)
- */
-
-#define META_TYPE_WINDOW_GROUP            (meta_window_group_get_type ())
-#define META_WINDOW_GROUP(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_WINDOW_GROUP, MetaWindowGroup))
-#define META_WINDOW_GROUP_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_WINDOW_GROUP, MetaWindowGroupClass))
-#define META_IS_WINDOW_GROUP(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_WINDOW_GROUP))
-#define META_IS_WINDOW_GROUP_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_WINDOW_GROUP))
-#define META_WINDOW_GROUP_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), META_TYPE_WINDOW_GROUP, MetaWindowGroupClass))
-
-typedef struct _MetaWindowGroup        MetaWindowGroup;
-typedef struct _MetaWindowGroupClass   MetaWindowGroupClass;
-typedef struct _MetaWindowGroupPrivate MetaWindowGroupPrivate;
-
-GType meta_window_group_get_type (void);
-
-ClutterActor *meta_window_group_new (MetaScreen *screen);
-
-#endif /* META_WINDOW_GROUP_H */

src/compositor/meta-window-shape.c

@@ -1,254 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-/*
- * MetaWindowShape
- *
- * Extracted invariant window shape
- *
- * Copyright (C) 2010 Red Hat, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-#include <string.h>
-
-#include "meta-window-shape.h"
-#include "region-utils.h"
-
-struct _MetaWindowShape
-{
-  guint ref_count;
-
-  int top, right, bottom, left;
-  int n_rectangles;
-  cairo_rectangle_int_t *rectangles;
-  guint hash;
-};
-
-MetaWindowShape *
-meta_window_shape_new (cairo_region_t *region)
-{
-  MetaWindowShape *shape;
-  MetaRegionIterator iter;
-  cairo_rectangle_int_t extents;
-  int max_yspan_y1 = 0;
-  int max_yspan_y2 = 0;
-  int max_xspan_x1 = -1;
-  int max_xspan_x2 = -1;
-  guint hash;
-
-  shape = g_slice_new0 (MetaWindowShape);
-  shape->ref_count = 1;
-
-  cairo_region_get_extents (region, &extents);
-
-  shape->n_rectangles = cairo_region_num_rectangles (region);
-
-  if (shape->n_rectangles == 0)
-    {
-      shape->rectangles = NULL;
-      shape->top = shape->right = shape->bottom = shape->left = 0;
-      shape->hash = 0;
-      return shape;
-    }
-
-  for (meta_region_iterator_init (&iter, region);
-       !meta_region_iterator_at_end (&iter);
-       meta_region_iterator_next (&iter))
-    {
-      int max_line_xspan_x1 = -1;
-      int max_line_xspan_x2 = -1;
-
-      if (iter.rectangle.width > max_line_xspan_x2 - max_line_xspan_x1)
-        {
-          max_line_xspan_x1 = iter.rectangle.x;
-          max_line_xspan_x2 = iter.rectangle.x + iter.rectangle.width;
-        }
-
-      if (iter.line_end)
-        {
-          if (iter.rectangle.height > max_yspan_y2 - max_yspan_y1)
-            {
-              max_yspan_y1 = iter.rectangle.y;
-              max_yspan_y2 = iter.rectangle.y + iter.rectangle.height;
-            }
-
-          if (max_xspan_x1 < 0) /* First line */
-            {
-              max_xspan_x1 = max_line_xspan_x1;
-              max_xspan_x2 = max_line_xspan_x2;
-            }
-          else
-            {
-              max_xspan_x1 = MAX (max_xspan_x1, max_line_xspan_x1);
-              max_xspan_x2 = MIN (max_xspan_x2, max_line_xspan_x2);
-
-              if (max_xspan_x2 < max_xspan_x1)
-                max_xspan_x2 = max_xspan_x1;
-            }
-        }
-    }
-
-#if 0
-  g_print ("xspan: %d -> %d, yspan: %d -> %d\n",
-           max_xspan_x1, max_xspan_x2,
-           max_yspan_y1, max_yspan_y2);
-#endif
-
-  shape->top = max_yspan_y1 - extents.y;
-  shape->right = extents.x + extents.width - max_xspan_x2;
-  shape->bottom = extents.y + extents.height - max_yspan_y2;
-  shape->left = max_xspan_x1 - extents.x;
-
-  shape->rectangles = g_new (cairo_rectangle_int_t, shape->n_rectangles);
-
-  hash = 0;
-  for (meta_region_iterator_init (&iter, region);
-       !meta_region_iterator_at_end (&iter);
-       meta_region_iterator_next (&iter))
-    {
-      int x1, x2, y1, y2;
-
-      x1 = iter.rectangle.x;
-      x2 = iter.rectangle.x + iter.rectangle.width;
-      y1 = iter.rectangle.y;
-      y2 = iter.rectangle.y + iter.rectangle.height;
-
-      if (x1 > max_xspan_x1)
-        x1 -= MIN (x1, max_xspan_x2 - 1) - max_xspan_x1;
-      if (x2 > max_xspan_x1)
-        x2 -= MIN (x2, max_xspan_x2 - 1) - max_xspan_x1;
-      if (y1 > max_yspan_y1)
-        y1 -= MIN (y1, max_yspan_y2 - 1) - max_yspan_y1;
-      if (y2 > max_yspan_y1)
-        y2 -= MIN (y2, max_yspan_y2 - 1) - max_yspan_y1;
-
-      shape->rectangles[iter.i].x = x1 - extents.x;
-      shape->rectangles[iter.i].y = y1 - extents.y;
-      shape->rectangles[iter.i].width = x2 - x1;
-      shape->rectangles[iter.i].height = y2 - y1;
-
-#if 0
-      g_print ("%d: +%d+%dx%dx%d => +%d+%dx%dx%d\n",
-               iter.i, iter.rectangle.x, iter.rectangle.y, iter.rectangle.width, iter.rectangle.height,
-               shape->rectangles[iter.i].x, shape->rectangles[iter.i].y,
-               hape->rectangles[iter.i].width, shape->rectangles[iter.i].height);
-#endif
-
-      hash = hash * 31 + x1 * 17 + x2 * 27 + y1 * 37 + y2 * 43;
-    }
-
-  shape->hash = hash;
-
-#if 0
-  g_print ("%d %d %d %d: %#x\n\n", shape->top, shape->right, shape->bottom, shape->left, shape->hash);
-#endif
-
-  return shape;
-}
-
-MetaWindowShape *
-meta_window_shape_ref (MetaWindowShape *shape)
-{
-  shape->ref_count++;
-
-  return shape;
-}
-
-void
-meta_window_shape_unref (MetaWindowShape *shape)
-{
-  shape->ref_count--;
-  if (shape->ref_count == 0)
-    {
-      g_free (shape->rectangles);
-      g_slice_free (MetaWindowShape, shape);
-    }
-}
-
-guint
-meta_window_shape_hash (MetaWindowShape *shape)
-{
-  return shape->hash;
-}
-
-gboolean
-meta_window_shape_equal (MetaWindowShape *shape_a,
-                         MetaWindowShape *shape_b)
-{
-  if (shape_a->n_rectangles != shape_b->n_rectangles)
-    return FALSE;
-
-  return memcmp (shape_a->rectangles, shape_b->rectangles,
-                 sizeof (cairo_rectangle_int_t) * shape_a->n_rectangles) == 0;
-}
-
-void
-meta_window_shape_get_borders (MetaWindowShape *shape,
-                               int             *border_top,
-                               int             *border_right,
-                               int             *border_bottom,
-                               int             *border_left)
-{
-  if (border_top)
-    *border_top = shape->top;
-  if (border_right)
-    *border_right = shape->right;
-  if (border_bottom)
-    *border_bottom = shape->bottom;
-  if (border_left)
-    *border_left = shape->left;
-}
-
-/**
- * meta_window_shape_to_region:
- * @shape: a #MetaWindowShape
- * @center_width: size of the central region horizontally
- * @center_height: size of the central region vertically
- *
- * Converts the shape to to a cairo_region_t using the given width
- * and height for the central scaled region.
- *
- * Return value: a newly created region
- */
-cairo_region_t *
-meta_window_shape_to_region (MetaWindowShape *shape,
-                             int              center_width,
-                             int              center_height)
-{
-  cairo_region_t *region;
-  int i;
-
-  region = cairo_region_create ();
-
-  for (i = 0; i < shape->n_rectangles; i++)
-    {
-      cairo_rectangle_int_t rect = shape->rectangles[i];
-
-      if (rect.x <= shape->left && rect.x + rect.width >= shape->left + 1)
-        rect.width += center_width;
-      else if (rect.x >= shape->left + 1)
-        rect.x += center_width;
-
-      if (rect.y <= shape->top && rect.y + rect.height >= shape->top + 1)
-        rect.height += center_height;
-      else if (rect.y >= shape->top + 1)
-        rect.y += center_height;
-
-      cairo_region_union_rectangle (region, &rect);
-    }
-
-  return region;
-}
-

src/compositor/meta-window-shape.h

@@ -1,60 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
-/*
- * MetaWindowShape
- *
- * Extracted invariant window shape
- *
- * Copyright (C) 2010 Red Hat, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
-
-#ifndef __META_WINDOW_SHAPE_H__
-#define __META_WINDOW_SHAPE_H__
-
-#include <cairo.h>
-#include <glib.h>
-
-/**
- * MetaWindowShape:
- * #MetaWindowShape represents a 9-sliced region with borders on all sides that
- * are unscaled, and a constant central region that is scaled. For example,
- * the regions representing two windows that are rounded rectangles,
- * with the same corner radius but different sizes, have the
- * same MetaWindowShape.
- *
- * #MetaWindowShape is designed to be used as part of a hash table key, so has
- * efficient hash and equal functions.
- */
-typedef struct _MetaWindowShape MetaWindowShape;
-
-MetaWindowShape *  meta_window_shape_new         (cairo_region_t  *region);
-MetaWindowShape *  meta_window_shape_ref         (MetaWindowShape *shape);
-void               meta_window_shape_unref       (MetaWindowShape *shape);
-guint              meta_window_shape_hash        (MetaWindowShape *shape);
-gboolean           meta_window_shape_equal       (MetaWindowShape *shape_a,
-                                                  MetaWindowShape *shape_b);
-void               meta_window_shape_get_borders (MetaWindowShape *shape,
-                                                  int             *border_top,
-                                                  int             *border_right,
-                                                  int             *border_bottom,
-                                                  int             *border_left);
-cairo_region_t    *meta_window_shape_to_region   (MetaWindowShape *shape,
-                                                  int              center_width,
-                                                  int              center_height);
-
-#endif /* __META_WINDOW_SHAPE_H __*/
-

src/compositor/mutter/mutter-module.c

@@ -21,8 +21,8 @@
  * 02111-1307, USA.
  */
 
-#include <meta/meta-plugin.h>
+#include "mutter-plugin.h"
-#include "meta-module.h"
+#include "mutter-module.h"
 
 #include <gmodule.h>
 
@@ -32,23 +32,23 @@ enum
   PROP_PATH,
 };
 
-struct _MetaModulePrivate
+struct _MutterModulePrivate
 {
   GModule      *lib;
   gchar        *path;
   GType         plugin_type;
 };
 
-#define META_MODULE_GET_PRIVATE(obj) \
+#define MUTTER_MODULE_GET_PRIVATE(obj) \
-(G_TYPE_INSTANCE_GET_PRIVATE ((obj), META_TYPE_MODULE, MetaModulePrivate))
+(G_TYPE_INSTANCE_GET_PRIVATE ((obj), MUTTER_TYPE_MODULE, MutterModulePrivate))
 
-G_DEFINE_TYPE (MetaModule, meta_module, G_TYPE_TYPE_MODULE);
+G_DEFINE_TYPE (MutterModule, mutter_module, G_TYPE_TYPE_MODULE);
 
 static gboolean
-meta_module_load (GTypeModule *gmodule)
+mutter_module_load (GTypeModule *gmodule)
 {
-  MetaModulePrivate  *priv = META_MODULE (gmodule)->priv;
+  MutterModulePrivate  *priv = MUTTER_MODULE (gmodule)->priv;
-  MetaPluginVersion  *info = NULL;
+  MutterPluginVersion  *info = NULL;
   GType                (*register_type) (GTypeModule *) = NULL;
 
   if (priv->lib && priv->plugin_type)
@@ -64,9 +64,9 @@ meta_module_load (GTypeModule *gmodule)
       return FALSE;
     }
 
-  if (g_module_symbol (priv->lib, "meta_plugin_version",
+  if (g_module_symbol (priv->lib, "mutter_plugin_version",
                        (gpointer *)(void *)&info) &&
-      g_module_symbol (priv->lib, "meta_plugin_register_type",
+      g_module_symbol (priv->lib, "mutter_plugin_register_type",
 		       (gpointer *)(void *)&register_type) &&
       info && register_type)
     {
@@ -97,9 +97,9 @@ meta_module_load (GTypeModule *gmodule)
 }
 
 static void
-meta_module_unload (GTypeModule *gmodule)
+mutter_module_unload (GTypeModule *gmodule)
 {
-  MetaModulePrivate *priv = META_MODULE (gmodule)->priv;
+  MutterModulePrivate *priv = MUTTER_MODULE (gmodule)->priv;
 
   g_module_close (priv->lib);
 
@@ -108,29 +108,29 @@ meta_module_unload (GTypeModule *gmodule)
 }
 
 static void
-meta_module_dispose (GObject *object)
+mutter_module_dispose (GObject *object)
 {
-  G_OBJECT_CLASS (meta_module_parent_class)->dispose (object);
+  G_OBJECT_CLASS (mutter_module_parent_class)->dispose (object);
 }
 
 static void
-meta_module_finalize (GObject *object)
+mutter_module_finalize (GObject *object)
 {
-  MetaModulePrivate *priv = META_MODULE (object)->priv;
+  MutterModulePrivate *priv = MUTTER_MODULE (object)->priv;
 
   g_free (priv->path);
   priv->path = NULL;
 
-  G_OBJECT_CLASS (meta_module_parent_class)->finalize (object);
+  G_OBJECT_CLASS (mutter_module_parent_class)->finalize (object);
 }
 
 static void
-meta_module_set_property (GObject      *object,
+mutter_module_set_property (GObject      *object,
-                          guint         prop_id,
+			    guint         prop_id,
-                          const GValue *value,
+			    const GValue *value,
-                          GParamSpec   *pspec)
+			    GParamSpec   *pspec)
 {
-  MetaModulePrivate *priv = META_MODULE (object)->priv;
+  MutterModulePrivate *priv = MUTTER_MODULE (object)->priv;
 
   switch (prop_id)
     {
@@ -145,12 +145,12 @@ meta_module_set_property (GObject      *object,
 }
 
 static void
-meta_module_get_property (GObject    *object,
+mutter_module_get_property (GObject    *object,
-                          guint       prop_id,
+			    guint       prop_id,
-                          GValue     *value,
+			    GValue     *value,
-                          GParamSpec *pspec)
+			    GParamSpec *pspec)
 {
-  MetaModulePrivate *priv = META_MODULE (object)->priv;
+  MutterModulePrivate *priv = MUTTER_MODULE (object)->priv;
 
   switch (prop_id)
     {
@@ -164,18 +164,18 @@ meta_module_get_property (GObject    *object,
 }
 
 static void
-meta_module_class_init (MetaModuleClass *klass)
+mutter_module_class_init (MutterModuleClass *klass)
 {
   GObjectClass     *gobject_class = G_OBJECT_CLASS (klass);
   GTypeModuleClass *gmodule_class = G_TYPE_MODULE_CLASS (klass);
 
-  gobject_class->finalize     = meta_module_finalize;
+  gobject_class->finalize     = mutter_module_finalize;
-  gobject_class->dispose      = meta_module_dispose;
+  gobject_class->dispose      = mutter_module_dispose;
-  gobject_class->set_property = meta_module_set_property;
+  gobject_class->set_property = mutter_module_set_property;
-  gobject_class->get_property = meta_module_get_property;
+  gobject_class->get_property = mutter_module_get_property;
 
-  gmodule_class->load         = meta_module_load;
+  gmodule_class->load         = mutter_module_load;
-  gmodule_class->unload       = meta_module_unload;
+  gmodule_class->unload       = mutter_module_unload;
 
   g_object_class_install_property (gobject_class,
 				   PROP_PATH,
@@ -186,22 +186,22 @@ meta_module_class_init (MetaModuleClass *klass)
 							G_PARAM_READWRITE |
 						      G_PARAM_CONSTRUCT_ONLY));
 
-  g_type_class_add_private (gobject_class, sizeof (MetaModulePrivate));
+  g_type_class_add_private (gobject_class, sizeof (MutterModulePrivate));
 }
 
 static void
-meta_module_init (MetaModule *self)
+mutter_module_init (MutterModule *self)
 {
-  MetaModulePrivate *priv;
+  MutterModulePrivate *priv;
 
-  self->priv = priv = META_MODULE_GET_PRIVATE (self);
+  self->priv = priv = MUTTER_MODULE_GET_PRIVATE (self);
 
 }
 
 GType
-meta_module_get_plugin_type (MetaModule *module)
+mutter_module_get_plugin_type (MutterModule *module)
 {
-  MetaModulePrivate *priv = META_MODULE (module)->priv;
+  MutterModulePrivate *priv = MUTTER_MODULE (module)->priv;
 
   return priv->plugin_type;
 }

src/compositor/mutter/mutter-module.h

@@ -21,37 +21,37 @@
  * 02111-1307, USA.
  */
 
-#ifndef META_MODULE_H_
+#ifndef MUTTER_MODULE_H_
-#define META_MODULE_H_
+#define MUTTER_MODULE_H_
 
 #include <glib-object.h>
 
-#define META_TYPE_MODULE            (meta_module_get_type ())
+#define MUTTER_TYPE_MODULE            (mutter_module_get_type ())
-#define META_MODULE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_MODULE, MetaModule))
+#define MUTTER_MODULE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), MUTTER_TYPE_MODULE, MutterModule))
-#define META_MODULE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  META_TYPE_MODULE, MetaModuleClass))
+#define MUTTER_MODULE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  MUTTER_TYPE_MODULE, MutterModuleClass))
-#define META_IS_MODULE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_MODULE_TYPE))
+#define MUTTER_IS_MODULE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), MUTTER_MODULE_TYPE))
-#define META_IS_MODULE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  META_TYPE_MODULE))
+#define MUTTER_IS_MODULE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  MUTTER_TYPE_MODULE))
-#define META_MODULE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  META_TYPE_MODULE, MetaModuleClass))
+#define MUTTER_MODULE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  MUTTER_TYPE_MODULE, MutterModuleClass))
 
-typedef struct _MetaModule        MetaModule;
+typedef struct _MutterModule        MutterModule;
-typedef struct _MetaModuleClass   MetaModuleClass;
+typedef struct _MutterModuleClass   MutterModuleClass;
-typedef struct _MetaModulePrivate MetaModulePrivate;
+typedef struct _MutterModulePrivate MutterModulePrivate;
 
-struct _MetaModule
+struct _MutterModule
 {
   GTypeModule parent;
 
-  MetaModulePrivate *priv;
+  MutterModulePrivate *priv;
 };
 
-struct _MetaModuleClass
+struct _MutterModuleClass
 {
   GTypeModuleClass parent_class;
 };
 
 
-GType meta_module_get_type (void);
+GType mutter_module_get_type (void);
 
-GType meta_module_get_plugin_type (MetaModule *module);
+GType mutter_module_get_plugin_type (MutterModule *module);
 
 #endif

src/compositor/mutter/mutter-plugin-manager.c

@@ -0,0 +1,609 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/*
+ * Copyright (c) 2008 Intel Corp.
+ *
+ * Author: Tomas Frydrych <tf@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#include "config.h"
+#include "mutter-plugin-manager.h"
+#include "prefs.h"
+#include "errors.h"
+#include "workspace.h"
+#include "mutter-module.h"
+
+#include <string.h>
+
+/*
+ * There is only one instace of each module per the process.
+ */
+static GHashTable *plugin_modules = NULL;
+
+static gboolean mutter_plugin_manager_reload (MutterPluginManager *plugin_mgr);
+
+struct MutterPluginManager
+{
+  MetaScreen   *screen;
+
+  GList /* MutterPluginPending */ *pending_plugin_modules; /* Plugins not yet fully loaded */
+  GList /* MutterPlugin */       *plugins;  /* TODO -- maybe use hash table */
+  GList                          *unload;  /* Plugins that are disabled and pending unload */
+
+  guint         idle_unload_id;
+};
+
+typedef struct MutterPluginPending
+{
+  MutterModule *module;
+  char *path;
+  char *params;
+} MutterPluginPending;
+
+/*
+ * Checks that the plugin is compatible with the WM and sets up the plugin
+ * struct.
+ */
+static MutterPlugin *
+mutter_plugin_load (MutterPluginManager *mgr,
+                    MutterModule        *module,
+                    const gchar         *params)
+{
+  MutterPlugin *plugin = NULL;
+  GType         plugin_type = mutter_module_get_plugin_type (module);
+
+  if (!plugin_type)
+    {
+      g_warning ("Plugin type not registered !!!");
+      return NULL;
+    }
+
+  plugin = g_object_new (plugin_type,
+                         "screen", mgr->screen,
+                         "params", params,
+                         NULL);
+
+  return plugin;
+}
+
+/*
+ * Attempst to unload a plugin; returns FALSE if plugin cannot be unloaded at
+ * present (e.g., and effect is in progress) and should be scheduled for
+ * removal later.
+ */
+static gboolean
+mutter_plugin_unload (MutterPlugin *plugin)
+{
+  if (mutter_plugin_running (plugin))
+    {
+      g_object_set (plugin, "disabled", TRUE, NULL);
+      return FALSE;
+    }
+
+  g_object_unref (plugin);
+
+  return TRUE;
+}
+
+/*
+ * Iddle callback to remove plugins that could not be removed directly and are
+ * pending for removal.
+ */
+static gboolean
+mutter_plugin_manager_idle_unload (MutterPluginManager *plugin_mgr)
+{
+  GList *l = plugin_mgr->unload;
+  gboolean dont_remove = TRUE;
+
+  while (l)
+    {
+      MutterPlugin *plugin = l->data;
+
+      if (mutter_plugin_unload (plugin))
+        {
+          /* Remove from list */
+          GList *p = l->prev;
+          GList *n = l->next;
+
+          if (!p)
+            plugin_mgr->unload = n;
+          else
+            p->next = n;
+
+          if (n)
+            n->prev = p;
+
+          g_list_free_1 (l);
+
+          l = n;
+        }
+      else
+        l = l->next;
+    }
+
+  if (!plugin_mgr->unload)
+    {
+      /* If no more unloads are pending, remove the handler as well */
+      dont_remove = FALSE;
+      plugin_mgr->idle_unload_id = 0;
+    }
+
+  return dont_remove;
+}
+
+/*
+ * Unloads all plugins
+ */
+static void
+mutter_plugin_manager_unload (MutterPluginManager *plugin_mgr)
+{
+  GList *plugins = plugin_mgr->plugins;
+
+  while (plugins)
+    {
+      MutterPlugin *plugin = plugins->data;
+
+      /* If the plugin could not be removed, move it to the unload list */
+      if (!mutter_plugin_unload (plugin))
+        {
+          plugin_mgr->unload = g_list_prepend (plugin_mgr->unload, plugin);
+
+          if (!plugin_mgr->idle_unload_id)
+            {
+              plugin_mgr->idle_unload_id = g_idle_add ((GSourceFunc)
+                            mutter_plugin_manager_idle_unload,
+                            plugin_mgr);
+            }
+        }
+
+      plugins = plugins->next;
+    }
+
+  g_list_free (plugin_mgr->plugins);
+  plugin_mgr->plugins = NULL;
+}
+
+static void
+prefs_changed_callback (MetaPreference pref,
+                        void          *data)
+{
+  MutterPluginManager *plugin_mgr = data;
+
+  if (pref == META_PREF_CLUTTER_PLUGINS)
+    {
+      mutter_plugin_manager_reload (plugin_mgr);
+    }
+}
+
+static MutterModule *
+mutter_plugin_manager_get_module (const gchar *path)
+{
+  MutterModule *module = g_hash_table_lookup (plugin_modules, path);
+
+  if (!module &&
+      (module = g_object_new (MUTTER_TYPE_MODULE, "path", path, NULL)))
+    {
+      g_hash_table_insert (plugin_modules, g_strdup (path), module);
+    }
+
+  return module;
+}
+
+/*
+ * Loads all plugins listed in gconf registry.
+ */
+gboolean
+mutter_plugin_manager_load (MutterPluginManager *plugin_mgr)
+{
+  const gchar *dpath = MUTTER_PLUGIN_DIR "/";
+  GSList      *plugins, *fallback = NULL;
+
+  plugins = meta_prefs_get_clutter_plugins ();
+
+  if (!plugins)
+    {
+      /*
+       * If no plugins are specified, try to load the default plugin.
+       */
+      fallback = g_slist_append (fallback, "default");
+      plugins = fallback;
+    }
+
+  while (plugins)
+    {
+      gchar   *plugin_string;
+      gchar   *params;
+
+      plugin_string = g_strdup (plugins->data);
+
+      if (plugin_string)
+        {
+          MutterModule *module;
+          gchar        *path;
+
+          params = strchr (plugin_string, ':');
+
+          if (params)
+            {
+              *params = 0;
+              ++params;
+            }
+
+          if (g_path_is_absolute (plugin_string))
+            path = g_strdup (plugin_string);
+          else
+            path = g_strconcat (dpath, plugin_string, ".so", NULL);
+
+          module = mutter_plugin_manager_get_module (path);
+
+          if (module)
+            {
+              gboolean      use_succeeded;
+
+              /*
+               * This dlopens the module and registers the plugin type with the
+               * GType system, if the module is not already loaded.  When we
+               * create a plugin, the type system also calls g_type_module_use()
+               * to guarantee the module will not be unloaded during the plugin
+               * life time. Consequently we can unuse() the module again.
+               */
+              use_succeeded = g_type_module_use (G_TYPE_MODULE (module));
+
+              if (use_succeeded)
+                {
+                  MutterPluginPending *pending = g_new0 (MutterPluginPending, 1);
+                  pending->module = module;
+                  pending->path = g_strdup (path);
+                  pending->params = g_strdup (params);
+                  plugin_mgr->pending_plugin_modules =
+                    g_list_prepend (plugin_mgr->pending_plugin_modules, pending);
+                }
+            }
+          else
+            g_warning ("Unable to load plugin module [%s]: %s",
+                       path, g_module_error());
+
+          g_free (path);
+          g_free (plugin_string);
+        }
+
+      plugins = plugins->next;
+    }
+
+
+  if (fallback)
+    g_slist_free (fallback);
+
+  if (plugin_mgr->pending_plugin_modules != NULL)
+    {
+      meta_prefs_add_listener (prefs_changed_callback, plugin_mgr);
+      return TRUE;
+    }
+
+  return FALSE;
+}
+
+gboolean
+mutter_plugin_manager_initialize (MutterPluginManager *plugin_mgr)
+{
+  GList *iter;
+
+  for (iter = plugin_mgr->pending_plugin_modules; iter; iter = iter->next)
+    {
+      MutterPluginPending *pending = (MutterPluginPending*) iter->data;
+      MutterPlugin *p;
+
+      if ((p = mutter_plugin_load (plugin_mgr, pending->module, pending->params)))
+        {
+          plugin_mgr->plugins = g_list_prepend (plugin_mgr->plugins, p);
+        }
+      else
+        {
+          g_warning ("Plugin load for [%s] failed", pending->path);
+        }
+
+      g_type_module_unuse (G_TYPE_MODULE (pending->module));
+      g_free (pending->path);
+      g_free (pending->params);
+      g_free (pending);
+    }
+  g_list_free (plugin_mgr->pending_plugin_modules);
+  plugin_mgr->pending_plugin_modules = NULL;
+  return TRUE;
+}
+
+/*
+ * Reloads all plugins
+ */
+static gboolean
+mutter_plugin_manager_reload (MutterPluginManager *plugin_mgr)
+{
+  /* TODO -- brute force; should we build a list of plugins to load and list of
+   * plugins to unload? We are probably not going to have large numbers of
+   * plugins loaded at the same time, so it might not be worth it.
+   */
+  mutter_plugin_manager_unload (plugin_mgr);
+  return mutter_plugin_manager_load (plugin_mgr);
+}
+
+MutterPluginManager *
+mutter_plugin_manager_new (MetaScreen *screen)
+{
+  MutterPluginManager *plugin_mgr;
+
+  if (!plugin_modules)
+    {
+      plugin_modules = g_hash_table_new_full (g_str_hash, g_str_equal, g_free,
+                                              NULL);
+    }
+
+  plugin_mgr = g_new0 (MutterPluginManager, 1);
+
+  plugin_mgr->screen        = screen;
+
+  return plugin_mgr;
+}
+
+static void
+mutter_plugin_manager_kill_effect (MutterPluginManager *plugin_mgr,
+                                   MutterWindow        *actor,
+                                   unsigned long        events)
+{
+  GList *l = plugin_mgr->plugins;
+
+  while (l)
+    {
+      MutterPlugin        *plugin = l->data;
+      MutterPluginClass   *klass = MUTTER_PLUGIN_GET_CLASS (plugin);
+
+      if (!mutter_plugin_disabled (plugin)
+	  && (mutter_plugin_features (plugin) & events)
+	  && klass->kill_effect)
+        klass->kill_effect (plugin, actor, events);
+
+      l = l->next;
+    }
+}
+
+#define ALL_BUT_SWITCH \
+  MUTTER_PLUGIN_ALL_EFFECTS & \
+  ~MUTTER_PLUGIN_SWITCH_WORKSPACE
+/*
+ * Public method that the compositor hooks into for events that require
+ * no additional parameters.
+ *
+ * Returns TRUE if at least one of the plugins handled the event type (i.e.,
+ * if the return value is FALSE, there will be no subsequent call to the
+ * manager completed() callback, and the compositor must ensure that any
+ * appropriate post-effect cleanup is carried out.
+ */
+gboolean
+mutter_plugin_manager_event_simple (MutterPluginManager *plugin_mgr,
+                                    MutterWindow        *actor,
+                                    unsigned long        event)
+{
+  GList *l = plugin_mgr->plugins;
+  gboolean retval = FALSE;
+
+  while (l)
+    {
+      MutterPlugin        *plugin = l->data;
+      MutterPluginClass   *klass = MUTTER_PLUGIN_GET_CLASS (plugin);
+
+      if (!mutter_plugin_disabled (plugin) &&
+          (mutter_plugin_features (plugin) & event))
+        {
+          retval = TRUE;
+
+          switch (event)
+            {
+            case MUTTER_PLUGIN_MINIMIZE:
+              if (klass->minimize)
+                {
+                  mutter_plugin_manager_kill_effect (
+		      plugin_mgr,
+		      actor,
+		      ALL_BUT_SWITCH);
+
+                  _mutter_plugin_effect_started (plugin);
+                  klass->minimize (plugin, actor);
+                }
+              break;
+            case MUTTER_PLUGIN_MAP:
+              if (klass->map)
+                {
+                  mutter_plugin_manager_kill_effect (
+		      plugin_mgr,
+		      actor,
+		      ALL_BUT_SWITCH);
+
+                  _mutter_plugin_effect_started (plugin);
+                  klass->map (plugin, actor);
+                }
+              break;
+            case MUTTER_PLUGIN_DESTROY:
+              if (klass->destroy)
+                {
+                  _mutter_plugin_effect_started (plugin);
+                  klass->destroy (plugin, actor);
+                }
+              break;
+            default:
+              g_warning ("Incorrect handler called for event %lu", event);
+            }
+        }
+
+      l = l->next;
+    }
+
+  return retval;
+}
+
+/*
+ * The public method that the compositor hooks into for maximize and unmaximize
+ * events.
+ *
+ * Returns TRUE if at least one of the plugins handled the event type (i.e.,
+ * if the return value is FALSE, there will be no subsequent call to the
+ * manager completed() callback, and the compositor must ensure that any
+ * appropriate post-effect cleanup is carried out.
+ */
+gboolean
+mutter_plugin_manager_event_maximize (MutterPluginManager *plugin_mgr,
+                                      MutterWindow        *actor,
+                                      unsigned long        event,
+                                      gint                 target_x,
+                                      gint                 target_y,
+                                      gint                 target_width,
+                                      gint                 target_height)
+{
+  GList *l = plugin_mgr->plugins;
+  gboolean retval = FALSE;
+
+  while (l)
+    {
+      MutterPlugin        *plugin = l->data;
+      MutterPluginClass   *klass = MUTTER_PLUGIN_GET_CLASS (plugin);
+
+      if (!mutter_plugin_disabled (plugin) &&
+          (mutter_plugin_features (plugin) & event))
+        {
+          retval = TRUE;
+
+          switch (event)
+            {
+            case MUTTER_PLUGIN_MAXIMIZE:
+              if (klass->maximize)
+                {
+                  mutter_plugin_manager_kill_effect (
+		      plugin_mgr,
+		      actor,
+		      ALL_BUT_SWITCH);
+
+                  _mutter_plugin_effect_started (plugin);
+                  klass->maximize (plugin, actor,
+                                   target_x, target_y,
+                                   target_width, target_height);
+                }
+              break;
+            case MUTTER_PLUGIN_UNMAXIMIZE:
+              if (klass->unmaximize)
+                {
+                  mutter_plugin_manager_kill_effect (
+		      plugin_mgr,
+		      actor,
+		      ALL_BUT_SWITCH);
+
+                  _mutter_plugin_effect_started (plugin);
+                  klass->unmaximize (plugin, actor,
+                                     target_x, target_y,
+                                     target_width, target_height);
+                }
+              break;
+            default:
+              g_warning ("Incorrect handler called for event %lu", event);
+            }
+        }
+
+      l = l->next;
+    }
+
+  return retval;
+}
+
+/*
+ * The public method that the compositor hooks into for desktop switching.
+ *
+ * Returns TRUE if at least one of the plugins handled the event type (i.e.,
+ * if the return value is FALSE, there will be no subsequent call to the
+ * manager completed() callback, and the compositor must ensure that any
+ * appropriate post-effect cleanup is carried out.
+ */
+gboolean
+mutter_plugin_manager_switch_workspace (MutterPluginManager *plugin_mgr,
+                                        const GList        **actors,
+                                        gint                 from,
+                                        gint                 to,
+                                        MetaMotionDirection  direction)
+{
+  GList *l = plugin_mgr->plugins;
+  gboolean retval = FALSE;
+
+  while (l)
+    {
+      MutterPlugin        *plugin = l->data;
+      MutterPluginClass   *klass = MUTTER_PLUGIN_GET_CLASS (plugin);
+
+      if (!mutter_plugin_disabled (plugin) &&
+          (mutter_plugin_features (plugin) & MUTTER_PLUGIN_SWITCH_WORKSPACE) &&
+          (actors && *actors))
+        {
+          if (klass->switch_workspace)
+            {
+              retval = TRUE;
+              mutter_plugin_manager_kill_effect (
+		  plugin_mgr,
+		  MUTTER_WINDOW ((*actors)->data),
+		  MUTTER_PLUGIN_SWITCH_WORKSPACE);
+
+              _mutter_plugin_effect_started (plugin);
+              klass->switch_workspace (plugin, actors, from, to, direction);
+            }
+        }
+
+      l = l->next;
+    }
+
+  return retval;
+}
+
+/*
+ * The public method that the compositor hooks into for desktop switching.
+ *
+ * Returns TRUE if at least one of the plugins handled the event type (i.e.,
+ * if the return value is FALSE, there will be no subsequent call to the
+ * manager completed() callback, and the compositor must ensure that any
+ * appropriate post-effect cleanup is carried out.
+ */
+gboolean
+mutter_plugin_manager_xevent_filter (MutterPluginManager *plugin_mgr,
+                                     XEvent              *xev)
+{
+  GList *l;
+
+  if (!plugin_mgr)
+    return FALSE;
+
+  l = plugin_mgr->plugins;
+
+  while (l)
+    {
+      MutterPlugin      *plugin = l->data;
+      MutterPluginClass *klass = MUTTER_PLUGIN_GET_CLASS (plugin);
+
+      if (klass->xevent_filter)
+        {
+          if (klass->xevent_filter (plugin, xev) == TRUE)
+            return TRUE;
+        }
+
+      l = l->next;
+    }
+
+  return FALSE;
+}