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- Cleaned up the Boot Video driver.
- Replaced most of the magic numbers by defines. - Changed the video mode setting to directly program the VGA registers instead of using Ke386CallBios. - Properly map the video memory. svn path=/trunk/; revision=8534
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Filip Navara
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124
reactos/drivers/dd/bootvid/bootvid.h
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124
reactos/drivers/dd/bootvid/bootvid.h
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/*
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* ReactOS Boot video driver
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*
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* Copyright (C) 2003 Casper S. Hornstroup
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* Copyright (C) 2004 Filip Navara
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Id: bootvid.h,v 1.1 2004/03/04 18:55:09 navaraf Exp $
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*/
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#ifndef _BOOTVID_H
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#define _BOOTVID_H
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#define PALETTE_FADE_STEPS 20
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#define PALETTE_FADE_TIME 20 * 10000 /* 20ms */
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/*
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* Windows Bitmap structures
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*/
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#define RT_BITMAP 2
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typedef struct tagRGBQUAD
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{
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unsigned char rgbBlue;
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unsigned char rgbGreen;
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unsigned char rgbRed;
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unsigned char rgbReserved;
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} RGBQUAD, *PRGBQUAD;
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typedef long FXPT2DOT30;
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typedef struct tagCIEXYZ
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{
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FXPT2DOT30 ciexyzX;
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FXPT2DOT30 ciexyzY;
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FXPT2DOT30 ciexyzZ;
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} CIEXYZ, *LPCIEXYZ;
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typedef struct tagCIEXYZTRIPLE
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{
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CIEXYZ ciexyzRed;
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CIEXYZ ciexyzGreen;
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CIEXYZ ciexyzBlue;
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} CIEXYZTRIPLE, *LPCIEXYZTRIPLE;
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typedef struct {
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DWORD bV5Size;
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LONG bV5Width;
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LONG bV5Height;
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WORD bV5Planes;
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WORD bV5BitCount;
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DWORD bV5Compression;
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DWORD bV5SizeImage;
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LONG bV5XPelsPerMeter;
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LONG bV5YPelsPerMeter;
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DWORD bV5ClrUsed;
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DWORD bV5ClrImportant;
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DWORD bV5RedMask;
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DWORD bV5GreenMask;
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DWORD bV5BlueMask;
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DWORD bV5AlphaMask;
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DWORD bV5CSType;
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CIEXYZTRIPLE bV5Endpoints;
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DWORD bV5GammaRed;
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DWORD bV5GammaGreen;
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DWORD bV5GammaBlue;
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DWORD bV5Intent;
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DWORD bV5ProfileData;
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DWORD bV5ProfileSize;
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DWORD bV5Reserved;
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} BITMAPV5HEADER, *PBITMAPV5HEADER;
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/*
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* Private driver structures
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*/
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typedef struct {
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ULONG r;
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ULONG g;
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ULONG b;
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} FADER_PALETTE_ENTRY;
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typedef struct _VGA_REGISTERS
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{
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UCHAR CRT[24];
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UCHAR Attribute[21];
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UCHAR Graphics[9];
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UCHAR Sequencer[5];
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UCHAR Misc;
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} VGA_REGISTERS, *PVGA_REGISTERS;
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/* VGA registers */
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#define MISC (PUCHAR)0x3c2
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#define SEQ (PUCHAR)0x3c4
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#define SEQDATA (PUCHAR)0x3c5
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#define CRTC (PUCHAR)0x3d4
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#define CRTCDATA (PUCHAR)0x3d5
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#define GRAPHICS (PUCHAR)0x3ce
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#define GRAPHICSDATA (PUCHAR)0x3cf
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#define ATTRIB (PUCHAR)0x3c0
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#define STATUS (PUCHAR)0x3da
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#define PELMASK (PUCHAR)0x3c6
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#define PELINDEX (PUCHAR)0x3c8
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#define PELDATA (PUCHAR)0x3c9
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/* In pixelsups.S */
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extern VOID
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InbvPutPixels(int x, int y, unsigned long c);
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#endif /* _BOOTVID_H */
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@ -1,4 +1,4 @@
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/* $Id: pixelsup_i386.S,v 1.1 2003/08/24 12:11:13 dwelch Exp $
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/* $Id: pixelsup_i386.S,v 1.2 2004/03/04 18:55:09 navaraf Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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@ -52,44 +52,47 @@ _InbvPutPixels:
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.nomask:
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/* Compute offset in video memory and put it in EBX
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offset = (x >> 3) + y80[y]; */
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offset = (x >> 3) + (y << 4) + (y << 6); */
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movl 0xC(%ebp), %esi /* y */
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movl _y80(,%esi, 4), %ebx
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movl %esi, %ebx
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shll $0x6, %ebx
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shll $0x4, %esi
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addl %esi, %ebx
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movl 0x8(%ebp), %eax /* x */
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shrl $0x3, %eax
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addl %eax, %ebx
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/* Latch first byte
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(UCHAR) READ_REGISTER_UCHAR(vidmem + offset+0); */
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movl (_vidmem), %esi
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(UCHAR) READ_REGISTER_UCHAR(VideoMemory + offset+0); */
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movl (_VideoMemory), %esi
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addl %ebx, %esi
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movb 0x0(%esi), %bl
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/* Write color index for first pixel
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*((PUCHAR)(vidmem + offset+0)) = (c >> 0*8) & 0xff; */
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*((PUCHAR)(VideoMemory + offset+0)) = (c >> 0*8) & 0xff; */
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movl 0x10(%ebp), %eax
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movb %al, 0x0(%esi)
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/* Latch second byte
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(UCHAR) READ_REGISTER_UCHAR(vidmem + offset+1); */
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(UCHAR) READ_REGISTER_UCHAR(VideoMemory + offset+1); */
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movb 0x1(%esi), %bl
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/* Write color index for second pixel
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*((PUCHAR)(vidmem + offset+1)) = (c >> 1*8) & 0xff; */
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*((PUCHAR)(VideoMemory + offset+1)) = (c >> 1*8) & 0xff; */
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shrl $0x8, %eax
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movb %al, 0x1(%esi)
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/* Latch third byte
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(UCHAR) READ_REGISTER_UCHAR(vidmem + offset+2); */
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(UCHAR) READ_REGISTER_UCHAR(VideoMemory + offset+2); */
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movb 0x2(%esi), %bl
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/* Write color index for third pixel
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*((PUCHAR)(vidmem + offset+2)) = (c >> 2*8) & 0xff; */
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*((PUCHAR)(VideoMemory + offset+2)) = (c >> 2*8) & 0xff; */
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shrl $0x8, %eax
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movb %al, 0x2(%esi)
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/* Latch fourth byte
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(UCHAR) READ_REGISTER_UCHAR(vidmem + offset+3); */
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(UCHAR) READ_REGISTER_UCHAR(VideoMemory + offset+3); */
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movb 0x3(%esi), %bl
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/* Write color index for fourth pixel
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*((PUCHAR)(vidmem + offset+3)) = (c >> 3*8) & 0xff; */
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*((PUCHAR)(VideoMemory + offset+3)) = (c >> 3*8) & 0xff; */
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shrl $0x8, %eax
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movb %al, 0x3(%esi)
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