From ba17f4df4d315a986fc2a3f49c9933377390ef6f Mon Sep 17 00:00:00 2001
From: Bob Pendleton <bob@pendleton.com>
Date: Thu, 6 Mar 2008 17:08:10 +0000
Subject: [PATCH] Fixing valgrind errors.

One of the error was the result of an unitended recursive call to X11_GL_LoadLibrary which was also fixed.
---
 src/SDL_compat.c              |  2 +-
 src/video/x11/SDL_x11opengl.c | 36 ++++++++++++++++++++++++-----------
 src/video/x11/SDL_x11window.c | 16 ++--------------
 3 files changed, 28 insertions(+), 26 deletions(-)

diff --git a/src/SDL_compat.c b/src/SDL_compat.c
index fe24748d3..6f1282ac4 100644
--- a/src/SDL_compat.c
+++ b/src/SDL_compat.c
@@ -397,8 +397,8 @@ SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags)
     }
     if (SDL_VideoWindow) {
         SDL_GetWindowPosition(SDL_VideoWindow, &window_x, &window_y);
+        SDL_DestroyWindow(SDL_VideoWindow);
     }
-    SDL_DestroyWindow(SDL_VideoWindow);
 
     /* Set up the event filter */
     if (!SDL_GetEventFilter(NULL, NULL)) {
diff --git a/src/video/x11/SDL_x11opengl.c b/src/video/x11/SDL_x11opengl.c
index e70f44567..919e6566a 100644
--- a/src/video/x11/SDL_x11opengl.c
+++ b/src/video/x11/SDL_x11opengl.c
@@ -65,6 +65,8 @@
 #define GL_UnloadObject	SDL_UnloadObject
 #endif
 
+static int X11_GL_InitializeMemory(_THIS);
+
 int
 X11_GL_LoadLibrary(_THIS, const char *path)
 {
@@ -90,7 +92,8 @@ X11_GL_LoadLibrary(_THIS, const char *path)
         return -1;
     }
     // LoadLibrary may be called before WindowCreate!
-    X11_GL_Initialize(_this);
+    // Must create the memory used by GL
+    X11_GL_InitializeMemory(_this);
 
     /* Load new function pointers */
     _this->gl_data->glXGetProcAddress =
@@ -254,11 +257,10 @@ X11_GL_InitExtensions(_THIS)
     /*     X11_PumpEvents(_this); */ /* can't do that because the windowlist may be inconsitent at this point */
 }
 
-int
-X11_GL_Initialize(_THIS)
+static int
+X11_GL_InitializeMemory(_THIS)
 {
     if (_this->gl_data) {
-        ++_this->gl_data->initialized;
         return 0;
     }
 
@@ -270,16 +272,28 @@ X11_GL_Initialize(_THIS)
         SDL_OutOfMemory();
         return -1;
     }
-    _this->gl_data->initialized = 1;
+    _this->gl_data->initialized = 0;
 
-    if (X11_GL_LoadLibrary(_this, NULL) < 0) {
-        return -1;
-    }
+    return 0;
+}
 
-    /* Initialize extensions */
-    X11_GL_InitExtensions(_this);
+int
+X11_GL_Initialize(_THIS)
+{
 
-    return 0;
+  if (X11_GL_InitializeMemory(_this) < 0) {
+     return -1;
+  }
+  ++_this->gl_data->initialized;
+
+  if (X11_GL_LoadLibrary(_this, NULL) < 0) {
+    return -1;
+  }
+
+  /* Initialize extensions */
+  X11_GL_InitExtensions(_this);
+
+  return 0;
 }
 
 void
diff --git a/src/video/x11/SDL_x11window.c b/src/video/x11/SDL_x11window.c
index b2bc577ab..b5e28944b 100644
--- a/src/video/x11/SDL_x11window.c
+++ b/src/video/x11/SDL_x11window.c
@@ -56,20 +56,6 @@ SetupWindowData(_THIS, SDL_Window * window, Window w, BOOL created)
     data->created = created;
     data->videodata = videodata;
 
-    /* Associate the data with the window */
-    windowlist =
-        (SDL_WindowData **) SDL_realloc(windowlist,
-                                        (numwindows +
-                                         1) * sizeof(*windowlist));
-    if (!windowlist) {
-        SDL_OutOfMemory();
-        SDL_free(data);
-        return -1;
-    }
-    windowlist[numwindows++] = data;
-    videodata->numwindows = numwindows;
-    videodata->windowlist = windowlist;
-
     /* Fill in the SDL window with the window data */
     {
         XWindowAttributes attrib;
@@ -228,6 +214,7 @@ X11_CreateWindow(_THIS, SDL_Window * window)
                     return -1;
                 }
                 SDL_memcpy(&cmap, stdmaps, sizeof(XStandardColormap));
+                XFree(stdmaps);
             }
 
             /* OK, we have the best color map, now copy it for use by the
@@ -655,6 +642,7 @@ X11_DestroyWindow(_THIS, SDL_Window * window)
             XDestroyWindow(display, data->window);
         }
         SDL_free(data);
+        window->driverdata = NULL;
     }
 }