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108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
/*
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* COPYRIGHT: GPLv2+ - See COPYING in the top level directory
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* PROJECT: ReactOS Virtual DOS Machine
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* FILE: subsystems/mvdm/ntvdm/bios/bios32/vbe.h
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* PURPOSE: VDM VESA BIOS Extensions (for the Cirrus CL-GD5434 emulated card)
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* PROGRAMMERS: Aleksandar Andrejevic <theflash AT sdf DOT lonestar DOT org>
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*/
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#ifndef _VBE_H_
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#define _VBE_H_
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#include "hardware/video/svga.h"
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/* DEFINITIONS ****************************************************************/
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#define OEM_NAME "Cirrus Logic GD-5434 VGA"
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#define OEM_NAME_PTR 0xF01D5091
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#define VBE_MODE_COUNT 40
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/* VBE Mode Attribute Flags */
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#define VBE_MODE_SUPPORTED (1 << 0)
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#define VBE_MODE_OPTIONAL_INFO (1 << 1)
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#define VBE_MODE_BIOS_SUPPORT (1 << 2)
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#define VBE_MODE_COLOR (1 << 3)
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#define VBE_MODE_GRAPHICS (1 << 4)
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/* VBE Window Attribute Flags */
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#define VBE_WINDOW_EXISTS (1 << 0)
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#define VBE_WINDOW_READABLE (1 << 1)
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#define VBE_WINDOW_WRITABLE (1 << 2)
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/* VBE Memory Models */
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#define VBE_MODEL_TEXT 0
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#define VBE_MODEL_CGA 1
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#define VBE_MODEL_HGC 2
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#define VBE_MODEL_EGA 3
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#define VBE_MODEL_PACKED 4
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#define VBE_MODEL_UNCHAINED 5
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#define VBE_MODEL_DIRECT 6
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#define VBE_MODEL_YUV 7
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#pragma pack(push, 1)
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typedef struct _VBE_INFORMATION
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{
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DWORD Signature;
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WORD Version;
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DWORD OemName;
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DWORD Capabilities;
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DWORD ModeList;
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WORD VideoMemory;
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WORD ModeListBuffer[118];
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} VBE_INFORMATION, *PVBE_INFORMATION;
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C_ASSERT(sizeof(VBE_INFORMATION) == 256);
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typedef struct _VBE_MODE_INFO
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{
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WORD Attributes;
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BYTE WindowAttrA;
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BYTE WindowAttrB;
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WORD WindowGranularity;
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WORD WindowSize;
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WORD WindowSegmentA;
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WORD WindowSegmentB;
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DWORD WindowPosFunc;
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WORD BytesPerScanline;
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WORD Width;
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WORD Height;
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BYTE CellWidth;
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BYTE CellHeight;
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BYTE NumPlanes;
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BYTE BitsPerPixel;
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BYTE NumBanks;
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BYTE MemoryModel;
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BYTE BankSize;
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BYTE ImagePages;
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BYTE Reserved;
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BYTE RedMaskSize;
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BYTE RedFieldPosition;
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BYTE GreenMaskSize;
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BYTE GreenFieldPosition;
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BYTE BlueMaskSize;
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BYTE BlueFieldPosition;
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BYTE ReservedMaskSize;
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BYTE ReservedFieldPosition;
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BYTE DirectColorInfo;
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} VBE_MODE_INFO, *PVBE_MODE_INFO;
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C_ASSERT(sizeof(VBE_MODE_INFO) % sizeof(WORD) == 0);
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#pragma pack(pop)
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typedef struct _VBE_MODE
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{
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BYTE Number;
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WORD VesaNumber;
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PVBE_MODE_INFO Info;
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PSVGA_REGISTERS Registers; // NULL means "forward to VGABIOS"
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} VBE_MODE, *PVBE_MODE;
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/* FUNCTIONS ******************************************************************/
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VOID WINAPI VbeService(LPWORD Stack);
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BOOLEAN VbeInitialize(VOID);
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#endif // _VBE_H_
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