From 5890ca497307b7eb2670b79036dde2b13510638f Mon Sep 17 00:00:00 2001
From: Derek Foreman <manmower@gmail.com>
Date: Fri, 1 Feb 2008 00:41:11 -0500
Subject: [PATCH] compositing pre-pre-pre alpha crap

---
 loco/loco.c       | 61 ++++++++++++++++++++++++++++++++++++++++++++++-
 loco/loco.h       |  2 +-
 openbox/openbox.c |  2 +-
 3 files changed, 62 insertions(+), 3 deletions(-)

diff --git a/loco/loco.c b/loco/loco.c
index baed45fc..f214cb1b 100644
--- a/loco/loco.c
+++ b/loco/loco.c
@@ -17,11 +17,70 @@
    See the COPYING file for a copy of the GNU General Public License.
 */
 
+#include <stdio.h>
+#include "obt/mainloop.h"
+#include "obt/display.h"
 #include "obt/mainloop.h"
 #include <glib.h>
+#include <GL/glx.h>
+#include <GL/glext.h>
+#include <GL/glxext.h>
+#include <GL/glxtokens.h>
+/*
+<dana> you want CreateNotify, DestroyNotify, MapNotify, UnmapNotify, and
+          ConfigureNotify
+          <dana> and then xdamage or whatever
+
+*/
+
+void composite_setup_window(Window win)
+{
+    XCompositeRedirectWindow(obt_display, win, CompositeRedirectAutomatic);
+    /*something useful = */XDamageCreate(obt_display, win, XDamageReportRawRectangles);
+}
 
-void loco_set_mainloop(ObtMainLoop *loop)
+void COMPOSTER_RAWR(const XEvent *e, gpointer data)
 {
+    Window window;
+    if (e->type == CreateNotify) {
+        window = e->xmap.window;
+        printf("Do first time stuff\n");
+        composite_setup_window(window);
+    }
+    if (e->type == obt_display_extension_damage_basep + XDamageNotify) {
+    }
+    if (e->type == ConfigureNotify) {
+        printf("Window moved or something\n");
+    }
+}
+
+void loco_set_mainloop(gint ob_screen, ObtMainLoop *loop)
+{
+    int w, h;
+    XVisualInfo *vi;
+    GLXContext cont;
+    int config[] =
+        { GLX_DEPTH_SIZE, 1, GLX_DOUBLEBUFFER, GLX_RGBA, None };
+
+    vi = glXChooseVisual(obt_display, DefaultScreen(obt_display), config);
+    cont = glXCreateContext(obt_display, vi, NULL, GL_TRUE);
+    if (cont == NULL)
+        printf("context creation failed\n");
+    glXMakeCurrent(obt_display, RootWindow(obt_display, ob_screen), cont);
+
+    w = WidthOfScreen(ScreenOfDisplay(obt_display, ob_screen));
+    h = HeightOfScreen(ScreenOfDisplay(obt_display, ob_screen));
+    glViewport(0, 0, w, h);
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+printf("Setting up an orthographic projection of %dx%d\n", w, h);
+    glOrtho(0, w, h, 0.0, -1.0, 100.0);
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+    glClear(GL_COLOR_BUFFER_BIT);
+    glEnable(GL_TEXTURE_RECTANGLE_ARB);
+    glXSwapBuffers(obt_display, RootWindow(obt_display, ob_screen));
+    obt_main_loop_x_add(loop, COMPOSTER_RAWR, NULL, NULL);
 }
 
 void loco_shutdown(void)
diff --git a/loco/loco.h b/loco/loco.h
index 5136f26a..8d645293 100644
--- a/loco/loco.h
+++ b/loco/loco.h
@@ -22,7 +22,7 @@
 
 struct _ObtMainLoop;
 
-void loco_set_mainloop(struct _ObtMainLoop *loop);
+void loco_set_mainloop(gint ob_screen, struct _ObtMainLoop *loop);
 void loco_shutdown(void);
 
 
diff --git a/openbox/openbox.c b/openbox/openbox.c
index 3b53c246..041ef853 100644
--- a/openbox/openbox.c
+++ b/openbox/openbox.c
@@ -200,7 +200,7 @@ gint main(gint argc, gchar **argv)
                                                XC_top_left_corner);
 
     if (screen_annex()) { /* it will be ours! */
-        loco_set_mainloop(ob_main_loop);
+        loco_set_mainloop(ob_screen, ob_main_loop);
 
         do {
             if (reconfigure) obt_keyboard_reload();
-- 
2.34.1