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- ;
- ; Command & Conquer Red Alert(tm)
- ; Copyright 2025 Electronic Arts Inc.
- ;
- ; This program is free software: you can redistribute it and/or modify
- ; it under the terms of the GNU General Public License as published by
- ; the Free Software Foundation, either version 3 of the License, or
- ; (at your option) any later version.
- ;
- ; This program is distributed in the hope that it will be useful,
- ; but WITHOUT ANY WARRANTY; without even the implied warranty of
- ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- ; GNU General Public License for more details.
- ;
- ; You should have received a copy of the GNU General Public License
- ; along with this program. If not, see <http://www.gnu.org/licenses/>.
- ;
- ;****************************************************************************
- ;*
- ;* 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
- ;*
- ;*----------------------------------------------------------------------------
- ;*
- ;* FILE
- ;* vesavid.i
- ;*
- ;* DESCRIPTION
- ;* VESA video manager definitions. (32-Bit protected mode)
- ;*
- ;* PROGRAMMER
- ;* Denzil E. Long, Jr.
- ;*
- ;* DATE
- ;* January 26, 1995
- ;*
- ;****************************************************************************
- ;----------------------------------------------------------------------------
- ; VESA video modes
- ;----------------------------------------------------------------------------
- VESA_640X400_256 EQU 0x100
- VESA_640X480_256 EQU 0x101
- VESA_800X600_16 EQU 0x102
- VESA_800X600_256 EQU 0x103
- VESA_1024X768_16 EQU 0x104
- VESA_1024X768_256 EQU 0x105
- VESA_1280X400_16 EQU 0x106
- VESA_1280X400_256 EQU 0x107
- VESA_TEXT_80X60 EQU 0x108
- VESA_TEXT_132X25 EQU 0x109
- VESA_TEXT_132X60 EQU 0x10C
- VESA_320X200_32K_1 EQU 0x10D
- VESA_320X200_32K_2 EQU 0x10E
- VESA_640X480_32K EQU 0x110
- VESA_640X480_65K EQU 0x111
- VESA_640X480_16M EQU 0x112
- VESA_800X600_32K EQU 0x113
- VESA_800X600_65K EQU 0x114
- VESA_1024X768_32K EQU 0x116
- VESA_1024X768_65K EQU 0x117
- VESA_MIN EQU VESA_640X400_256
- VESA_MAX EQU VESA_1024X768_65K
- ;----------------------------------------------------------------------------
- ; Structure definitions
- ;----------------------------------------------------------------------------
- ; VESAInfo - General information about this VESA implementation.
- ; (Filled in by VESA BIOS Function 0)
- ;
- ; Signature - Will always be 'VESA'
- ; Ver - Version #
- ; OEMString - OEM ID string
- ; Capabilities - Not defined by VESA yet
- ; AvailModes - List of available modes; terminated with -1 (0xffff)
- ; TotalMemory - ???
- ; Reserved - Pads structure to 256 bytes total
- STRUC VESAInfo
- Signature DD ?
- Ver DW ?
- OEMString DD ?
- Capabilities DD ?
- AvailModes DD ?
- TotalMemory DW ?
- Reserved DB 236 DUP (?)
- ENDS VESAInfo
- ; VESAModeInfo - Information about this VESA mode.
- ; (Filled in by VESA BIOS Function 1)
- ;
- ; Attributes - bit 0: 1 = mode is supported
- ; bit 1: 1 = optional info available
- ; bit 2: 1 = std BIOS output functions valid in this mode
- ; bit 3: 0 = monochrome, 1 = color
- ; bit 4: 0 = text mode, 1 = graphics
- ; WinA_Attributes - bit 0 = window exists, bit 1=readable, bit 2= writable
- ; WinB_Attributes - bit 0 = window exists, bit 1=readable, bit 2= writable
- ; WinGranularity - smallest address boundary window can be placed upon;
- ; size is in KB (ie 64, 32, 4)
- ; WinSize - size of windows in KB (ie 64, 32)
- ; WinA_Segment - location of Window A in CPU space (usually 0xa000)
- ; WinB_Segment - location of Window B in CPU space (usually 0xb000)
- ; WinFunc - address of window-setting function (This is provided
- ; as an alternative to Int 10 for speed.)
- ; BytesPerScanline - # bytes per scan line
- ;
- ; Optional info (available if bit 1 of Attributes is set):
- ;
- ; XRes - X-resolution
- ; YRes - Y-resolution
- ; XCharSize - Horizontal size of char cell
- ; YCharSize - Vertical size of char cell
- ; NumPlanes - # of memory planes (???)
- ; BitsPerPixel - # bites per pixel
- ; NumBanks - # of banks (ie planes)
- ; MemoryModel - 00h = Text mode
- ; 01h = CGA mode
- ; 02h = Hercules
- ; 03h = 4 plane planar mode
- ; 04h = packed pixel mode (1 byte/pixel)
- ; 05h = non-chain 4, 256-color mode
- ; 06-0Fh =
- ; 10-FFh = OEM-specific
- ; BankSize - Bank size in KB
- STRUC VESAModeInfo
- Attributes DW ?
- WinA_Attributes DB ?
- WinB_Attributes DB ?
- WinGranularity DW ?
- WinSize DW ?
- WinA_Segment DW ?
- WinB_Segment DW ?
- WinFunc DD ?
- BytesPerScanline DW ?
- XRes DW ?
- YRes DW ?
- XCharSize DB ?
- YCharSize DB ?
- NumPlanes DB ?
- BitsPerPixel DB ?
- NumBanks DB ?
- MemoryModel DB ?
- BankSize DB ?
- NumInputPages DB ?
- Reserved DB ?
- RedMaskSize DB ?
- RedFieldPosition DB ?
- GreenMaskSize DB ?
- GreenFieldPosition DB ?
- BlueMaskSize DB ?
- BlueFieldPosition DB ?
- RsvdMaskSize DB ?
- RsvdFieldPosition DB ?
- DirectColorModeInfo DB ?
- pad DB 216 DUP (?)
- ENDS VESAModeInfo
- ;----------------------------------------------------------------------------
- ; Function definitions
- ;----------------------------------------------------------------------------
- GLOBAL C InitVESA:PROC
- GLOBAL C UninitVESA:PROC
- GLOBAL C SetVESAMode:PROC
- GLOBAL C ReadVESAModeInfo:PROC
- GLOBAL C SetVESAWindow:PROC
- ;----------------------------------------------------------------------------
- ;
- ; NAME
- ; SET_WINDOW - Sets window A to the specified bank.
- ;
- ; SYNOPSIS
- ; SET_WINDOW GrainNum
- ;
- ; FUNCTION
- ; This routine uses the C Set_Window function rather than going through
- ; the BIOS, for two reasons: (1) Speed, and (2) On the Cirrus Logic 54xx
- ; VESA cards, BIOS calls make noise while playing digital audio.
- ;
- ; INPUTS
- ; GrainNum - Granularity number.
- ;
- ; RESULT
- ; NONE
- ;
- ;----------------------------------------------------------------------------
- MACRO SET_WINDOW grain_num
- push esi
- push edi
- push es
- call SetVESAWindow C,grain_num
- pop es
- pop edi
- pop esi
- ENDM
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