clear surface on mode change

3 files changed, 24 insertions, 1 deletions

diff --git a/makefile b/makefile
index 6e01f98..37ec4e1 100644
--- a/makefile
+++ b/makefile
@@ -12,7 +12,7 @@ OBJS += &
 

 INCS = -I$(%WATCOM)\h\win -Iddk -Ivmware

 

-VER_BUILD = 88

+VER_BUILD = 91

 

 FLAGS = -DDRV_VER_BUILD=$(VER_BUILD)

 

diff --git a/vxd_svga.c b/vxd_svga.c
index f1441aa..0d77c6e 100644
--- a/vxd_svga.c
+++ b/vxd_svga.c
@@ -841,6 +841,20 @@ static void SVGA_setmode_phy(DWORD w, DWORD h, DWORD bpp)
 	SVGA_Flush_CB();

 }

 

+/* clear both physical screen and system surface */

+void SVGA_clear()

+{

+	if(hda->system_surface)

+	{

+		memset((BYTE*)hda->vram_pm32 + hda->system_surface, 0, hda->height*hda->pitch);

+		memset(hda->vram_pm32, 0, SVGA_pitch(hda->width, 32)*hda->height);

+	}

+	else

+	{

+		memset(hda->vram_pm32, 0, hda->height*hda->pitch);

+	}

+}

+

 /**

  * Set display mode

  *

@@ -933,6 +947,8 @@ BOOL SVGA_setmode(DWORD w, DWORD h, DWORD bpp)
 		SVGA_DefineGMRFB();

 	}

 	

+	SVGA_clear();

+	

 	mouse_invalidate();

 	FBHDA_access_end(0);

 

diff --git a/vxd_vbe.c b/vxd_vbe.c
index 79f9508..4d78939 100644
--- a/vxd_vbe.c
+++ b/vxd_vbe.c
@@ -204,6 +204,11 @@ BOOL VBE_validmode(DWORD w, DWORD h, DWORD bpp)
 	return FALSE;

 }

 

+void VBE_clear()

+{

+	memset(hda->vram_pm32, 0, hda->pitch*hda->height);

+}

+

 BOOL VBE_setmode(DWORD w, DWORD h, DWORD bpp)

 {

 	if(!VBE_validmode(w, h, bpp)) return FALSE;

@@ -262,6 +267,8 @@ BOOL VBE_setmode(DWORD w, DWORD h, DWORD bpp)
 	hda->pitch  = VBE_pitch(w, bpp);

 	hda->stride = h * hda->pitch;

 	hda->surface = 0;

+	

+	VBE_clear();

 

 	mouse_invalidate();