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Map video memory based on actual size of screen

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svn path=/trunk/; revision=4932
This commit is contained in:
Gé van Geldorp 2003-06-20 13:04:09 +00:00
parent 7704a6609a
commit 76d1058fc3
1 changed files with 6 additions and 7 deletions
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13
reactos/drivers/dd/blue/blue.c
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@ -1,4 +1,4 @@
/* $Id: blue.c,v 1.37 2003/03/21 21:09:40 hbirr Exp $ /* $Id: blue.c,v 1.38 2003/06/20 13:04:09 gvg Exp $
* *
* COPYRIGHT: See COPYING in the top level directory * COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel * PROJECT: ReactOS kernel
@ -23,7 +23,6 @@
/* DEFINITIONS ***************************************************************/ /* DEFINITIONS ***************************************************************/
#define VIDMEM_BASE 0xb8000 #define VIDMEM_BASE 0xb8000
#define VIDMEM_SIZE 0x2000
#define CRTC_COMMAND ((PUCHAR)0x3d4) #define CRTC_COMMAND ((PUCHAR)0x3d4)
#define CRTC_DATA ((PUCHAR)0x3d5) #define CRTC_DATA ((PUCHAR)0x3d5)
@ -79,11 +78,6 @@ ScrCreate(PDEVICE_OBJECT DeviceObject,
DeviceExtension = DeviceObject->DeviceExtension; DeviceExtension = DeviceObject->DeviceExtension;
/* get pointer to video memory */
BaseAddress.QuadPart = VIDMEM_BASE;
DeviceExtension->VideoMemory =
(PBYTE)MmMapIoSpace (BaseAddress, VIDMEM_SIZE, FALSE);
/* disable interrupts */ /* disable interrupts */
__asm__("cli\n\t"); __asm__("cli\n\t");
@ -130,6 +124,11 @@ ScrCreate(PDEVICE_OBJECT DeviceObject,
DeviceExtension->Rows, DeviceExtension->Rows,
DeviceExtension->ScanLines); DeviceExtension->ScanLines);
/* get pointer to video memory */
BaseAddress.QuadPart = VIDMEM_BASE;
DeviceExtension->VideoMemory =
(PBYTE)MmMapIoSpace (BaseAddress, DeviceExtension->Rows * DeviceExtension->Columns * 2, FALSE);
DeviceExtension->CursorSize = 5; /* FIXME: value correct?? */ DeviceExtension->CursorSize = 5; /* FIXME: value correct?? */
DeviceExtension->CursorVisible = TRUE; DeviceExtension->CursorVisible = TRUE;