# fix VMware VGA driver depth calculation error, which may cause segmentation fault
#
# ktian1, 06/29/2010
Index: qemu-0.13.0/console.h
===================================================================
--- qemu-0.13.0.orig/console.h	2011-01-17 16:41:58.000000000 +0800
+++ qemu-0.13.0/console.h	2011-01-17 16:48:00.000000000 +0800
@@ -171,6 +171,12 @@
     void (*free_displaysurface)(DisplaySurface *surface);
 };
 
+struct DisplayPostCallback {
+    void (*postcall) (void *);
+    void *parm;
+    struct DisplayPostCallback *next;
+};
+
 struct DisplayState {
     struct DisplaySurface *surface;
     void *opaque;
@@ -178,6 +184,7 @@
 
     struct DisplayAllocator* allocator;
     struct DisplayChangeListener* listeners;
+    struct DisplayPostCallback* postcalls;
 
     void (*mouse_set)(int x, int y, int on);
     void (*cursor_define)(QEMUCursor *cursor);
@@ -229,6 +236,12 @@
     ds->listeners = dcl;
 }
 
+static inline void register_displaypostcallback(DisplayState *ds, DisplayPostCallback *dpc)
+{
+    dpc->next = ds->postcalls;
+    ds->postcalls = dpc;
+}
+
 static inline void dpy_update(DisplayState *s, int x, int y, int w, int h)
 {
     struct DisplayChangeListener *dcl = s->listeners;
Index: qemu-0.13.0/hw/vmware_vga.c
===================================================================
--- qemu-0.13.0.orig/hw/vmware_vga.c	2011-01-17 16:42:36.000000000 +0800
+++ qemu-0.13.0/hw/vmware_vga.c	2011-01-17 16:48:00.000000000 +0800
@@ -957,8 +957,9 @@
     }
 }
 
-static void vmsvga_reset(struct vmsvga_state_s *s)
+static void vmsvga_reset(void *parm)
 {
+    struct vmsvga_state_s *s = (struct vmsvga_state_s *)parm;
     s->index = 0;
     s->enable = 0;
     s->config = 0;
@@ -1163,6 +1164,8 @@
 
 static void vmsvga_init(struct vmsvga_state_s *s, int vga_ram_size)
 {
+    DisplayPostCallback *dpc;
+
     s->scratch_size = SVGA_SCRATCH_SIZE;
     s->scratch = qemu_malloc(s->scratch_size * 4);
 
@@ -1190,7 +1193,10 @@
 
     rom_add_vga(VGABIOS_FILENAME);
 
-    vmsvga_reset(s);
+    dpc = qemu_mallocz(sizeof(DisplayPostCallback));
+    dpc->postcall = vmsvga_reset;
+    dpc->parm = s;
+    register_displaypostcallback(s->vga.ds, dpc);
 }
 
 static void pci_vmsvga_map_ioport(PCIDevice *pci_dev, int region_num,
Index: qemu-0.13.0/qemu-common.h
===================================================================
--- qemu-0.13.0.orig/qemu-common.h	2011-01-17 16:41:58.000000000 +0800
+++ qemu-0.13.0/qemu-common.h	2011-01-17 16:48:00.000000000 +0800
@@ -205,6 +205,7 @@
 typedef struct DisplayChangeListener DisplayChangeListener;
 typedef struct DisplaySurface DisplaySurface;
 typedef struct DisplayAllocator DisplayAllocator;
+typedef struct DisplayPostCallback DisplayPostCallback;
 typedef struct PixelFormat PixelFormat;
 typedef struct TextConsole TextConsole;
 typedef TextConsole QEMUConsole;
Index: qemu-0.13.0/vl.c
===================================================================
--- qemu-0.13.0.orig/vl.c	2011-01-17 16:42:36.000000000 +0800
+++ qemu-0.13.0/vl.c	2011-01-17 16:48:00.000000000 +0800
@@ -1814,6 +1814,7 @@
     char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
     DisplayState *ds;
     DisplayChangeListener *dcl;
+    DisplayPostCallback *dpc;
     int cyls, heads, secs, translation;
     QemuOpts *hda_opts = NULL, *opts;
     int optind;
@@ -2960,6 +2961,13 @@
     }
     dpy_resize(ds);
 
+    dpc = ds->postcalls;
+    while (dpc != NULL) {
+        if (dpc->postcall != NULL)
+            dpc->postcall(dpc->parm);
+        dpc = dpc->next;
+    }
+
     dcl = ds->listeners;
     while (dcl != NULL) {
         if (dcl->dpy_refresh != NULL) {