[Spice-devel] [PATCH xf86-drv-qxl F14-branch 4/4] Fix restoration of text mode font when leaving the vt (rhbz#633647)

[Hans de Goede]

---
 src/qxl.h        |    2 ++
 src/qxl_driver.c |   41 ++++++++++++++++++++++++++++++-----------
 2 files changed, 32 insertions(+), 11 deletions(-)

diff --git a/src/qxl.h b/src/qxl.h
index 678a0f2..e126546 100644
--- a/src/qxl.h
+++ b/src/qxl.h
@@ -40,6 +40,7 @@
 #endif
 #include "fb.h"
 #include "uxa/uxa.h"
+#include "vgaHW.h"
 
 #define hidden _X_HIDDEN
 
@@ -659,6 +660,7 @@ struct _qxl_screen_t
     pciVideoPtr			pci;
     PCITAG			pci_tag;
 #endif
+    vgaRegRec                   vgaRegs;
 
     uxa_driver_t *		uxa;
     
diff --git a/src/qxl_driver.c b/src/qxl_driver.c
index 0db6e5f..c403c3c 100644
--- a/src/qxl_driver.c
+++ b/src/qxl_driver.c
@@ -36,9 +36,6 @@
 #include "qxl.h"
 #include "assert.h"
 
-#define qxl_save_state(x) do { (void)x; } while (0)
-#define qxl_restore_state(x) do { (void)x; } while (0)
-
 #if 0
 #define CHECK_POINT() ErrorF ("%s: %d  (%s)\n", __FILE__, __LINE__, __FUNCTION__);
 #endif
@@ -272,6 +269,22 @@ qxl_map_memory(qxl_screen_t *qxl, int scrnIndex)
     return TRUE;
 }
 
+static void
+qxl_save_state(ScrnInfoPtr pScrn)
+{
+    qxl_screen_t *qxl = pScrn->driverPrivate;
+
+    vgaHWSaveFonts(pScrn, &qxl->vgaRegs);
+}
+
+static void
+qxl_restore_state(ScrnInfoPtr pScrn)
+{
+    qxl_screen_t *qxl = pScrn->driverPrivate;
+
+    vgaHWRestoreFonts(pScrn, &qxl->vgaRegs);
+}
+
 static Bool
 qxl_close_screen(int scrnIndex, ScreenPtr pScreen)
 {
@@ -279,8 +292,10 @@ qxl_close_screen(int scrnIndex, ScreenPtr pScreen)
     qxl_screen_t *qxl = pScrn->driverPrivate;
     Bool result;
     
-    if (pScrn->vtSema)
+    if (pScrn->vtSema) {
+        qxl_restore_state(pScrn);
 	qxl_unmap_memory(qxl, scrnIndex);
+    }
     pScrn->vtSema = FALSE;
 
     ErrorF ("Freeing %p\n", qxl->fb);
@@ -1156,7 +1171,7 @@ qxl_screen_init(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
     printf ("ram_header at %d\n", qxl->rom->ram_header_offset);
     printf ("surf0 size: %d\n", qxl->rom->surface0_area_size);
     
-    qxl_save_state(qxl);
+    qxl_save_state(pScrn);
     qxl_blank_screen(pScreen, SCREEN_SAVER_ON);
     
     miClearVisualTypes();
@@ -1271,20 +1286,19 @@ static Bool
 qxl_enter_vt(int scrnIndex, int flags)
 {
     ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
-    qxl_screen_t *qxl = pScrn->driverPrivate;
-    
-    qxl_save_state(qxl);
     
+    qxl_save_state(pScrn);
     qxl_switch_mode(scrnIndex, pScrn->currentMode, 0);
+
     return TRUE;
 }
 
 static void
 qxl_leave_vt(int scrnIndex, int flags)
 {
-    qxl_screen_t *qxl = xf86Screens[scrnIndex]->driverPrivate;
+    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
     
-    qxl_restore_state(qxl);
+    qxl_restore_state(pScrn);
 }
 
 static Bool
@@ -1576,13 +1590,18 @@ qxl_pre_init(ScrnInfoPtr pScrn, int flags)
     xf86SetDpi(pScrn, 0, 0);
     
     if (!xf86LoadSubModule(pScrn, "fb") ||
-	!xf86LoadSubModule(pScrn, "ramdac"))
+	!xf86LoadSubModule(pScrn, "ramdac") ||
+	!xf86LoadSubModule(pScrn, "vgahw"))
     {
 	goto out;
     }
     
     print_modes (qxl, scrnIndex);
     
+    /* VGA hardware initialisation */
+    if (!vgaHWGetHWRec(pScrn))
+        return FALSE;
+
     /* hate */
     qxl_unmap_memory(qxl, scrnIndex);
     
-- 
1.7.2.2