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110 lines
3.2 KiB
C
110 lines
3.2 KiB
C
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// Emacs style mode select -*- C++ -*-
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//-----------------------------------------------------------------------------
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//
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// Copyright (C) 1998-2000 by DooM Legacy Team.
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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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/// \file
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/// \brief VESA extra modes.
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#include "../doomdef.h"
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#include "../screen.h"
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#define MODE_SUPPORTED_IN_HW 0x0001
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#define COLOR_MODE 0x0008
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#define GRAPHICS_MODE 0x0010
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#define VGA_INCOMPATIBLE 0x0020
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#define LINEAR_FRAME_BUFFER 0x0080
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#define LINEAR_MODE 0x4000
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#define MAX_VESA_MODES 30 // we'll just take the first 30 if there
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// VESA information block structure
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typedef struct vbeinfoblock_s
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{
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UINT8 VESASignature[4];
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UINT16 VESAVersion;
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unsigned long OemStringPtr;
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UINT8 Capabilities[4];
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unsigned long VideoModePtr;
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UINT16 TotalMemory;
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UINT8 OemSoftwareRev[2];
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UINT8 OemVendorNamePtr[4];
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UINT8 OemProductNamePtr[4];
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UINT8 OemProductRevPtr[4];
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UINT8 Reserved[222];
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UINT8 OemData[256];
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} ATTRPACK vbeinfoblock_t;
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// VESA information for a specific mode
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typedef struct vesamodeinfo_s
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{
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UINT16 ModeAttributes;
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UINT8 WinAAttributes;
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UINT8 WinBAttributes;
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UINT16 WinGranularity;
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UINT16 WinSize;
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UINT16 WinASegment;
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UINT16 WinBSegment;
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unsigned long WinFuncPtr;
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UINT16 BytesPerScanLine;
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UINT16 XResolution;
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UINT16 YResolution;
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UINT8 XCharSize;
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UINT8 YCharSize;
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UINT8 NumberOfPlanes;
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UINT8 BitsPerPixel;
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UINT8 NumberOfBanks;
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UINT8 MemoryModel;
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UINT8 BankSize;
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UINT8 NumberOfImagePages;
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UINT8 Reserved_page;
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UINT8 RedMaskSize;
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UINT8 RedMaskPos;
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UINT8 GreenMaskSize;
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UINT8 GreenMaskPos;
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UINT8 BlueMaskSize;
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UINT8 BlueMaskPos;
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UINT8 ReservedMaskSize;
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UINT8 ReservedMaskPos;
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UINT8 DirectColorModeInfo;
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/* VBE 2.0 extensions */
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unsigned long PhysBasePtr;
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unsigned long OffScreenMemOffset;
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UINT16 OffScreenMemSize;
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/* VBE 3.0 extensions */
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UINT16 LinBytesPerScanLine;
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UINT8 BnkNumberOfPages;
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UINT8 LinNumberOfPages;
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UINT8 LinRedMaskSize;
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UINT8 LinRedFieldPos;
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UINT8 LinGreenMaskSize;
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UINT8 LinGreenFieldPos;
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UINT8 LinBlueMaskSize;
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UINT8 LinBlueFieldPos;
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UINT8 LinRsvdMaskSize;
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UINT8 LinRsvdFieldPos;
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unsigned long MaxPixelClock;
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UINT8 Reserved[190];
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} ATTRPACK vesamodeinfo_t;
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// setup standard VGA + VESA modes list, activate the default video mode.
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void VID_Init (void);
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