183 lines
6.1 KiB
C
183 lines
6.1 KiB
C
/*
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** Command & Conquer Red Alert(tm)
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** Copyright 2025 Electronic Arts Inc.
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**
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** This program is free software: you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation, either version 3 of the License, or
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** (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, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef VQMVESAVID_H
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#define VQMVESAVID_H
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/****************************************************************************
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*
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* C O N F I D E N T I A L --- W E S T W O O D S T U D I O S
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*
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*----------------------------------------------------------------------------
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*
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* FILE
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* VESAVid.h (32-Bit protected mode)
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*
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* DESCRIPTION
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* VESA video manager definitions.
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*
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* PROGRAMMER
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* Denzil E. Long, Jr.
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*
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* DATE
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* Febuary 3, 1995
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*
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****************************************************************************/
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#ifndef __WATCOMC__
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#include <pharlap.h>
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#else
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#include "realmode.h"
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#endif
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/*---------------------------------------------------------------------------
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* VESA Video Modes
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*-------------------------------------------------------------------------*/
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#define VESA_640X400_256 0x100
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#define VESA_640X480_256 0x101
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#define VESA_800X600_16 0x102
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#define VESA_800X600_256 0x103
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#define VESA_1024X768_16 0x104
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#define VESA_1024X768_256 0x105
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#define VESA_1280X400_16 0x106
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#define VESA_1280X400_256 0x107
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#define VESA_TEXT_80X60 0x108
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#define VESA_TEXT_132X25 0x109
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#define VESA_TEXT_132X60 0x10C
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#define VESA_320X200_32K_1 0x10D
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#define VESA_320X200_32K_2 0x10E
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#define VESA_640X480_32K 0x110
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#define VESA_640X480_65K 0x111
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#define VESA_640X480_16M 0x112
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#define VESA_800X600_32K 0x113
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#define VESA_800X600_65K 0x114
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#define VESA_1024X768_32K 0x116
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#define VESA_1024X768_65K 0x117
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#define VESA_MIN VESA_640X400_256
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#define VESA_MAX VESA_1024X768_65K
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/*---------------------------------------------------------------------------
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* Structure definitions
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*-------------------------------------------------------------------------*/
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/* VESAInfo - General information about this VESA implementation.
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* (Filled in by VESA BIOS Function 0)
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*
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* Signature - Will always be 'VESA'
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* Version - Version #
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* OEMString - OEM ID string
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* Capabilities - Not defined by VESA yet
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* AvailModes - List of available modes; terminated with -1 (0xffff)
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* TotalMemory - ???
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* Reserved - Pads structure to 256 bytes total
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*/
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typedef struct _VESAInfo {
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char Signature[4];
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unsigned short Version;
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REALPTR OEMString;
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unsigned long Capabilities;
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REALPTR AvailModes;
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unsigned short TotalMemory;
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unsigned char Reserved[236];
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} VESAInfo;
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/* VESAModeInfo - Information about this VESA mode.
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* (Filled in by VESA BIOS Function 1)
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*
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* Attributes - bit 0: 1 = mode is supported
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* bit 1: 1 = optional info available
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* bit 2: 1 = std BIOS output functions valid in this mode
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* bit 3: 0 = monochrome, 1 = color
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* bit 4: 0 = text mode, 1 = graphics
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* WinA_Attributes - bit 0 = window exists, bit 1=readable, bit 2= writable
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* WinB_Attributes - bit 0 = window exists, bit 1=readable, bit 2= writable
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* WinGranularity - smallest address boundary window can be placed upon;
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* size is in KB (ie 64, 32, 4)
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* WinSize - size of windows in KB (ie 64, 32)
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* WinA_Segment - location of Window A in CPU space (usually 0xa000)
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* WinB_Segment - location of Window B in CPU space (usually 0xb000)
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* WinFunc - address of window-setting function (This is provided
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* as an alternative to Int 10 for speed.)
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* BytesPerScanline - # bytes per scan line
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*
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* Optional info (available if bit 1 of Attributes is set):
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*
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* XRes - X-resolution
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* YRes - Y-resolution
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* XCharSize - Horizontal size of char cell
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* YCharSize - Vertical size of char cell
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* NumPlanes - # of memory planes (???)
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* BitsPerPixel - # bites per pixel
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* NumBanks - # of banks (ie planes)
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* MemoryModel - 00h = Text mode
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* 01h = CGA mode
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* 02h = Hercules
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* 03h = 4 plane planar mode
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* 04h = packed pixel mode (1 byte/pixel)
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* 05h = non-chain 4, 256-color mode
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* 06-0Fh =
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* 10-FFh = OEM-specific
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* BankSize - Bank size in KB
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*/
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typedef struct _VESAModeInfo {
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unsigned short Attributes;
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unsigned char WinA_Attributes;
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unsigned char WinB_Attributes;
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unsigned short WinGranularity;
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unsigned short WinSize;
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unsigned short WinA_Segment;
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unsigned short WinB_Segment;
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REALPTR WinFunc;
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unsigned short BytesPerScanline;
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unsigned short XRes;
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unsigned short YRes;
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unsigned char XCharSize;
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unsigned char YCharSize;
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unsigned char NumPlanes;
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unsigned char BitsPerPixel;
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unsigned char NumBanks;
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unsigned char MemoryModel;
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unsigned char BankSize;
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unsigned char NumInputPages;
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unsigned char Reserved;
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unsigned char RedMaskSize;
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unsigned char RedFieldPosition;
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unsigned char GreenMaskSize;
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unsigned char GreenFieldPosition;
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unsigned char BlueMaskSize;
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unsigned char BlueFieldPosition;
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unsigned char RsvdMaskSize;
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unsigned char RsvdFieldPosition;
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unsigned char DirectColorModeInfo;
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unsigned char pad[216];
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} VESAModeInfo;
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/*---------------------------------------------------------------------------
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* Function prototypes
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*-------------------------------------------------------------------------*/
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long InitVESA(void);
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void UninitVESA(void);
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VESAModeInfo *SetVESAMode(long mode);
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VESAModeInfo *ReadVESAModeInfo(long mode);
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void SetVESAWindow(long grain_num);
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#endif /* VQMVESAVID_H */
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