;****************************************************************************
;*
;* VESA BIOS Extensions/Accelerator Functions
;* Version 1.0
;*
;* Copyright (C) 1996 SciTech Software.
;* All rights reserved.
;*
;* Filename: $Workfile: _vbeaf.asm $
;* Developed by: SciTech Software
;*
;* Language: 80386 Assembler (TASM ideal mode)
;* Environment: IBM PC 32 bit Protected Mode.
;*
;* Description: Assembly language support routines for the Graphics
;* Accelerator API. This module provides a small, sample
;* C API showing how to call the device context functions
;* from assembler. For time critical code the device context
;* functions should be called directly from assembly language
;* rather than via these C callable functions. However for
;* many operations these C function will suffice.
;*
;* $Date: 20 Jun 1996 13:32:36 $ $Author: KendallB $
;*
;****************************************************************************
IDEAL
include "model.mac" ; Memory model macros
include "vbeaf.inc" ; Structure definitions etc
if flatmodel
header _vbeaf
EXTRN __AF_int86_C:FPTR
EXTRN __AF_callRealMode_C:FPTR
begcodeseg _vbeaf
; Macros to setup and call a generic function that takes a parameter block
; in DS:ESI given the parameters passed on the stack
MACRO CallGeneric name
ARG dc:DPTR, firstParm:UINT
push ebp
mov ebp,esp
push ebx
push esi
mov ebx,[dc]
lea esi,[firstParm]
call [AF_devCtx.name]
pop esi
pop ebx
pop ebp
ret
ENDM
MACRO CallGeneric1Color name
ARG dc:DPTR, color:UINT, firstParm:UINT
push ebp
mov ebp,esp
push ebx
push esi
mov eax,[color]
mov ebx,[dc]
lea esi,[firstParm]
call [AF_devCtx.name]
pop esi
pop ebx
pop ebp
ret
ENDM
MACRO CallGeneric2Color name
ARG dc:DPTR, color:UINT, backColor:UINT, firstParm:UINT
push ebp
mov ebp,esp
push ebx
push esi
mov eax,[color]
mov ebx,[dc]
mov ecx,[backColor]
lea esi,[firstParm]
call [AF_devCtx.name]
pop esi
pop ebx
pop ebp
ret
ENDM
;----------------------------------------------------------------------------
; _AF_int86 Issue a real mode interrupt
;----------------------------------------------------------------------------
; Entry: BL - Interrupt number
; DS:EDI - Pointer to DPMI register structure
;
; Exit: DS:EDI - Pointer to modifed DPMI register structure
;----------------------------------------------------------------------------
procstart __AF_int86
movzx ebx,bl
push edi
push ebx
call __AF_int86_C ; Call C version to handle it
add esp,8
ret
procend __AF_int86
;----------------------------------------------------------------------------
; _AF_callRealMode Issue a real mode interrupt
;----------------------------------------------------------------------------
; Entry: BL - Interrupt number
; DS:EDI - Pointer to DPMI register structure
;
; Exit: DS:EDI - Pointer to modifed DPMI register structure
;----------------------------------------------------------------------------
procstart __AF_callRealMode
push edi
call __AF_callRealMode_C ; Call C version to handle it
add esp,4
ret
procend __AF_callRealMode
;----------------------------------------------------------------------------
; AF_int32 _AF_initDriver(AF_devCtx *dc);
;----------------------------------------------------------------------------
procstartdll __AF_initDriver
ARG dc:DPTR
push ebp
mov ebp,esp
push ebx
mov ebx,[dc]
mov eax,[AF_devCtx.initDriver]
add eax,ebx
call eax
pop ebx
pop ebp
ret
procend __AF_initDriver
;----------------------------------------------------------------------------
; AF_int32 AF_getVideoModeInfo(AF_devCtx *dc,AF_int16 mode,
; AF_modeInfo *modeInfo)
;----------------------------------------------------------------------------
procstartdll _AF_getVideoModeInfo
ARG dc:DPTR, mode:S_USHORT, modeInfo:DPTR
push ebp
mov ebp,esp
push ebx
push edi
movzx eax,[mode]
mov ebx,[dc]
mov edi,[modeInfo]
call [AF_devCtx.GetVideoModeInfo]
pop edi
pop ebx
pop ebp
ret
procend _AF_getVideoModeInfo
;----------------------------------------------------------------------------
; AF_int32 AF_setVideoMode(AF_devCtx *dc,AF_int16 mode,
; AF_int32 *bytesPerLine,int numBuffers)
;----------------------------------------------------------------------------
procstartdll _AF_setVideoMode
ARG dc:DPTR, mode:S_USHORT, bytesPerLine:DPTR, numBuffers:UINT
push ebp
mov ebp,esp
push ebx
push edi
movzx eax,[mode]
mov ebx,[dc]
mov ecx,[bytesPerLine]
mov ecx,[ecx]
mov edi,[numBuffers]
call [AF_devCtx.SetVideoMode]
mov edx,[bytesPerLine]
mov [edx],ecx
pop edi
pop ebx
pop ebp
ret
procend _AF_setVideoMode
;----------------------------------------------------------------------------
; AF_int32 AF_setVirtualVideoMode(AF_devCtx *dc,AF_int16 mode,
; AF_int32 virtualX,AF_int32 virtualY,AF_int32 *bytesPerLine,int numBuffers)
;----------------------------------------------------------------------------
procstartdll _AF_setVirtualVideoMode
ARG dc:DPTR, mode:S_USHORT, virtualX:UINT, virtualY:UINT, \
bytesPerLine:DPTR, numBuffers:UINT
push ebp
mov ebp,esp
push ebx
push esi
push edi
movzx eax,[mode]
mov ebx,[dc]
mov ecx,[bytesPerLine]
mov ecx,[ecx]
mov edx,[virtualX]
mov esi,[virtualY]
mov edi,[numBuffers]
call [AF_devCtx.SetVideoMode]
mov edx,[bytesPerLine]
mov [edx],ecx
pop edi
pop esi
pop ebx
pop ebp
ret
procend _AF_setVirtualVideoMode
;----------------------------------------------------------------------------
; void AF_restoreTextMode(AF_devCtx *dc)
;----------------------------------------------------------------------------
procstartdll _AF_restoreTextMode
ARG dc:DPTR
push ebp
mov ebp,esp
push ebx
mov ebx,[dc]
call [AF_devCtx.RestoreTextMode]
pop ebx
pop ebp
ret
procend _AF_restoreTextMode
;----------------------------------------------------------------------------
; void AF_setBank(AF_devCtx *dc,AF_int32 bank)
;----------------------------------------------------------------------------
procstartdll _AF_setBank
ARG dc:DPTR, bank:UINT
push ebp
mov ebp,esp
push ebx
mov ebx,[dc]
mov edx,[bank]
call [AF_devCtx.SetBank]
pop ebx
pop ebp
ret
procend _AF_setBank
;----------------------------------------------------------------------------
; void AF_waitTillIdle(AF_devCtx *dc)
;----------------------------------------------------------------------------
procstartdll _AF_waitTillIdle
ARG dc:DPTR
push ebp
mov ebp,esp
push ebx
mov ebx,[dc]
call [AF_devCtx.WaitTillIdle]
pop ebx
pop ebp
ret
procend _AF_waitTillIdle
;----------------------------------------------------------------------------
; void AF_enableDirectAccess(AF_devCtx *dc)
;----------------------------------------------------------------------------
procstartdll _AF_enableDirectAccess
ARG dc:DPTR
push ebp
mov ebp,esp
push ebx
mov ebx,[dc]
call [AF_devCtx.EnableDirectAccess]
pop ebx
pop ebp
ret
procend _AF_enableDirectAccess
;----------------------------------------------------------------------------
; void AF_disableDirectAccess(AF_devCtx *dc)
;----------------------------------------------------------------------------
procstartdll _AF_disableDirectAccess
ARG dc:DPTR
push ebp
mov ebp,esp
push ebx
mov ebx,[dc]
call [AF_devCtx.DisableDirectAccess]
pop ebx
pop ebp
ret
procend _AF_disableDirectAccess
;----------------------------------------------------------------------------
; void AF_setDisplayStart(AF_devCtx *dc,AF_int32 x,AF_int32 y,
; AF_int32 waitVRT)
;----------------------------------------------------------------------------
procstartdll _AF_setDisplayStart
ARG dc:DPTR, x:UINT, y:UINT, waitVRT:UINT
push ebp
mov ebp,esp
push ebx
mov eax,[waitVRT]
mov ebx,[dc]
mov ecx,[x]
mov edx,[y]
call [AF_devCtx.SetDisplayStart]
pop ebx
pop ebp
ret
procend _AF_setDisplayStart
;----------------------------------------------------------------------------
; void AF_setActiveBuffer(AF_devCtx *dc,AF_int32 index)
;----------------------------------------------------------------------------
procstartdll _AF_setActiveBuffer
ARG dc:DPTR, index:UINT
push ebp
mov ebp,esp
push ebx
mov eax,[index]
mov ebx,[dc]
call [AF_devCtx.SetActiveBuffer]
pop ebx
pop ebp
ret
procend _AF_setActiveBuffer
;----------------------------------------------------------------------------
; void AF_setVisibleBuffer(AF_devCtx *dc,AF_int32 index,AF_int32 waitVRT)
;----------------------------------------------------------------------------
procstartdll _AF_setVisibleBuffer
ARG dc:DPTR, index:UINT, waitVRT:UINT
push ebp
mov ebp,esp
push ebx
mov eax,[index]
mov ebx,[dc]
mov edx,[waitVRT]
call [AF_devCtx.SetVisibleBuffer]
pop ebx
pop ebp
ret
procend _AF_setVisibleBuffer
;----------------------------------------------------------------------------
; void AF_setPaletteData(AF_devCtx *dc,AF_palette *pal,AF_int32 num,
; AF_int32 index,AF_int32 waitVRT)
;----------------------------------------------------------------------------
procstartdll _AF_setPaletteData
ARG dc:DPTR, pal:DPTR, num:UINT, index:UINT, waitVRT:UINT
push ebp
mov ebp,esp
push ebx
push esi
mov eax,[waitVRT]
mov ebx,[dc]
mov ecx,[num]
mov edx,[index]
mov esi,[pal]
call [AF_devCtx.SetPaletteData]
pop esi
pop ebx
pop ebp
ret
procend _AF_setPaletteData
;----------------------------------------------------------------------------
; void AF_setGammaCorrectData(AF_devCtx *dc,AF_palette *pal,AF_int32 num,
; AF_int32 index)
;----------------------------------------------------------------------------
procstartdll _AF_setGammaCorrectData
ARG dc:DPTR, pal:DPTR, num:UINT, index:UINT
push ebp
mov ebp,esp
push ebx
push esi
mov eax,[index]
mov ebx,[dc]
mov ecx,[num]
mov esi,[pal]
call [AF_devCtx.SetGammaCorrectData]
pop esi
pop ebx
pop ebp
ret
procend _AF_setGammaCorrectData
;----------------------------------------------------------------------------
; void AF_setCursor(AF_devCtx *dc,AF_cursor *cursor)
;----------------------------------------------------------------------------
procstartdll _AF_setCursor
ARG dc:DPTR, cursor:DPTR
push ebp
mov ebp,esp
push ebx
push esi
mov ebx,[dc]
mov esi,[cursor]
call [AF_devCtx.SetCursor]
pop esi
pop ebx
pop ebp
ret
procend _AF_setCursor
;----------------------------------------------------------------------------
; void AF_setCursorPos(AF_devCtx *dc,AF_int32 x,AF_int32 y)
;----------------------------------------------------------------------------
procstartdll _AF_setCursorPos
ARG dc:DPTR, x:UINT, y:UINT
push ebp
mov ebp,esp
push ebx
mov eax,[x]
mov ebx,[dc]
mov ecx,[y]
call [AF_devCtx.SetCursorPos]
pop ebx
pop ebp
ret
procend _AF_setCursorPos
;----------------------------------------------------------------------------
; void AF_setCursorColor(AF_devCtx *dc,AF_uint8 red,AF_uint8 green,
; AF_uint8 blue)
;----------------------------------------------------------------------------
procstartdll _AF_setCursorColor
ARG dc:DPTR, red:S_UCHAR, green:S_UCHAR, blue:S_UCHAR
push ebp
mov ebp,esp
push ebx
mov al,[red]
mov ah,[green]
mov ebx,[dc]
mov cl,[blue]
call [AF_devCtx.SetCursorColor]
pop ebx
pop ebp
ret
procend _AF_setCursorColor
;----------------------------------------------------------------------------
; void AF_showCursor(AF_devCtx *dc,AF_int32 visible)
;----------------------------------------------------------------------------
procstartdll _AF_showCursor
ARG dc:DPTR, visible:UINT
push ebp
mov ebp,esp
push ebx
mov eax,[visible]
mov ebx,[dc]
call [AF_devCtx.ShowCursor]
pop ebx
pop ebp
ret
procend _AF_showCursor
;----------------------------------------------------------------------------
; void AF_setMix(AF_devCtx *dc,AF_int32 foreMix,AF_int32 backMix)
;----------------------------------------------------------------------------
procstartdll _AF_setMix
ARG dc:DPTR, foreMix:UINT, backMix:UINT
push ebp
mov ebp,esp
push ebx
mov eax,[foreMix]
mov ebx,[dc]
mov ecx,[backMix]
call [AF_devCtx.SetMix]
pop ebx
pop ebp
ret
procend _AF_setMix
;----------------------------------------------------------------------------
; void AF_set8x8Pattern(AF_devCtx *dc,AF_pattern *pattern)
;----------------------------------------------------------------------------
procstartdll _AF_set8x8MonoPattern
ARG dc:DPTR, pattern:DPTR
push ebp
mov ebp,esp
push ebx
push esi
mov ebx,[dc]
mov esi,[pattern]
call [AF_devCtx.Set8x8MonoPattern]
pop esi
pop ebx
pop ebp
ret
procend _AF_set8x8MonoPattern
;----------------------------------------------------------------------------
; void AF_setLineStipple(AF_devCtx *dc,AF_stipple stipple)
;----------------------------------------------------------------------------
procstartdll _AF_setLineStipple
ARG dc:DPTR, stipple:S_USHORT
push ebp
mov ebp,esp
push ebx
mov ax,[stipple]
mov ebx,[dc]
call [AF_devCtx.SetLineStipple]
pop ebx
pop ebp
ret
procend _AF_setLineStipple
;----------------------------------------------------------------------------
; void AF_setClipRect(AF_devCtx *dc,AF_int32 minx,AF_int32 miny,
; AF_int32 maxx,AF_int32 maxy)
;----------------------------------------------------------------------------
procstartdll _AF_setClipRect
CallGeneric SetClipRect
procend _AF_setClipRect
;----------------------------------------------------------------------------
; void AF_drawScan(AF_devCtx *dc,AF_int32 color,AF_int32 y,AF_int32 x1,
; AF_int32 x2)
;----------------------------------------------------------------------------
procstartdll _AF_drawScan
ARG dc:DPTR, color:UINT, y:UINT, x1:UINT, x2:UINT
push ebp
mov ebp,esp
push ebx
push esi
mov eax,[y]
mov ebx,[dc]
mov ecx,[x1]
mov edx,[x2]
mov esi,[color]
call [AF_devCtx.DrawScan]
pop esi
pop ebx
pop ebp
ret
procend _AF_drawScan
;----------------------------------------------------------------------------
; void AF_drawPattScan(AF_devCtx *dc,AF_int32 foreColor,AF_int32 backColor,
; AF_int32 y,AF_int32 x1,AF_int32 x2)
;----------------------------------------------------------------------------
procstartdll _AF_drawPattScan
ARG dc:DPTR, color:UINT, backColor:UINT, y:UINT, x1:UINT, x2:UINT
push ebp
mov ebp,esp
push ebx
push esi
push edi
mov eax,[y]
mov ebx,[dc]
mov ecx,[x1]
mov edx,[x2]
mov esi,[color]
mov edi,[backColor]
call [AF_devCtx.DrawPattScan]
pop edi
pop esi
pop ebx
pop ebp
ret
procend _AF_drawPattScan
;----------------------------------------------------------------------------
; void AF_drawScanList(AF_devCtx *dc,AF_color color,AF_int32 y,AF_int32 len,
; AF_int16 *scans)
;----------------------------------------------------------------------------
procstartdll _AF_drawScanList
ARG dc:DPTR, color:UINT, y:UINT, len:UINT, scans:DPTR
push ebp
mov ebp,esp
push ebx
mov eax,[y]
mov ebx,[dc]
mov ecx,[len]
mov esi,[scans]
mov edx,[color]
call [AF_devCtx.DrawScanList]
pop ebx
pop ebp
ret
procend _AF_drawScanList
;----------------------------------------------------------------------------
; void AF_drawRect(AF_devCtx *dc,AF_color color,AF_int32 left,AF_int32 top,
; AF_int32 width,AF_int32 height)
;----------------------------------------------------------------------------
procstartdll _AF_drawRect
CallGeneric1Color DrawRect
procend _AF_drawRect
;----------------------------------------------------------------------------
; void AF_drawPattRect(AF_devCtx *dc,AF_color foreColor,AF_color backColor,
; AF_int32 left,AF_int32 top,AF_int32 width,AF_int32 height)
;----------------------------------------------------------------------------
procstartdll _AF_drawPattRect
CallGeneric2Color DrawPattRect
procend _AF_drawPattRect
;----------------------------------------------------------------------------
; void AF_drawLine(AF_devCtx *dc,AF_color color,AF_fix32 x1,AF_fix32 y1,
; AF_fix32 x2,AF_fix32 y2)
;----------------------------------------------------------------------------
procstartdll _AF_drawLine
CallGeneric1Color DrawLine
procend _AF_drawLine
;----------------------------------------------------------------------------
; void AF_drawStippleLine(AF_devCtx *dc,AF_color foreColor,AF_color backColor,
; AF_fix32 x1,AF_fix32 y1,AF_fix32 x2,AF_fix32 y2)
;----------------------------------------------------------------------------
procstartdll _AF_drawStippleLine
CallGeneric2Color DrawStippleLine
procend _AF_drawStippleLine
;----------------------------------------------------------------------------
; void AF_drawTrap(AF_devCtx *dc,AF_color color,AF_int32 y,AF_int32 count,
; AF_fix32 x1,AF_fix32 x2,AF_fix32 slope1,AF_fix32 slope2)
;----------------------------------------------------------------------------
procstartdll _AF_drawTrap
CallGeneric1Color DrawTrap
procend _AF_drawTrap
;----------------------------------------------------------------------------
; void AF_drawTri(AF_devCtx *dc,AF_color color,AF_fxpoint *v1,AF_fxpoint *v2,
; AF_fxpoint *v3,AF_fix32 xOffset,AF_fix32 yOffset)
;----------------------------------------------------------------------------
procstartdll _AF_drawTri
CallGeneric1Color DrawTri
procend _AF_drawTri
;----------------------------------------------------------------------------
; void AF_drawQuad(AF_devCtx *dc,AF_color color,AF_fxpoint *v1,AF_fxpoint *v2,
; AF_fxpoint *v3,AF_fix32 xOffset,AF_fix32 yOffset)
;----------------------------------------------------------------------------
procstartdll _AF_drawQuad
CallGeneric1Color DrawQuad
procend _AF_drawQuad
;----------------------------------------------------------------------------
; void AF_putMonoImage(AF_devCtx *dc,AF_int32 foreColor,AF_int32 backColor,
; AF_int32 x,AF_int32 y,AF_int32 byteWidth,AF_int32 height,AF_uint8 *image)
;----------------------------------------------------------------------------
procstartdll _AF_putMonoImage
CallGeneric2Color PutMonoImage
procend _AF_putMonoImage
;----------------------------------------------------------------------------
; void AF_bitBlt(AF_devCtx *dc,AF_int32 left,AF_int32 top,AF_int32 width,
; AF_int32 height,AF_int32 dstLeft,AF_int32 dstTop,AF_int32 op)
;----------------------------------------------------------------------------
procstartdll _AF_bitBlt
CallGeneric BitBlt
procend _AF_bitBlt
;----------------------------------------------------------------------------
; void AF_bitBltLin(AF_devCtx *dc,AF_int32 srcOfs,
; AF_int32 left,AF_int32 top,AF_int32 width,AF_int32 height,
; AF_int32 dstLeft,AF_int32 dstTop,AF_int32 op)
;----------------------------------------------------------------------------
procstartdll _AF_bitBltLin
CallGeneric BitBltLin
procend _AF_bitBltLin
;----------------------------------------------------------------------------
; void AF_srcTransBlt(AF_devCtx *dc,AF_int32 left,AF_int32 top,AF_int32 width,
; AF_int32 height,AF_int32 dstLeft,AF_int32 dstTop,AF_color transparent)
;----------------------------------------------------------------------------
procstartdll _AF_srcTransBlt
CallGeneric SrcTransBlt
procend _AF_srcTransBlt
;----------------------------------------------------------------------------
; void AF_dstTransBlt(AF_devCtx *dc,AF_int32 left,AF_int32 top,AF_int32 width,
; AF_int32 height,AF_int32 dstLeft,AF_int32 dstTop,AF_color transparent)
;----------------------------------------------------------------------------
procstartdll _AF_dstTransBlt
CallGeneric DstTransBlt
procend _AF_dstTransBlt
;----------------------------------------------------------------------------
; void AF_srcTransBltLin(AF_devCtx *dc,AF_int32 srcOfs,
; AF_int32 left,AF_int32 top,AF_int32 width,AF_int32 height,
; AF_int32 dstLeft,AF_int32 dstTop,AF_color transparent)
;----------------------------------------------------------------------------
procstartdll _AF_srcTransBltLin
CallGeneric SrcTransBltLin
procend _AF_srcTransBltLin
;----------------------------------------------------------------------------
; void AF_dstTransBltLin(AF_devCtx *dc,AF_int32 srcOfs,
; AF_int32 left,AF_int32 top,AF_int32 width,AF_int32 height,
; AF_int32 dstLeft,AF_int32 dstTop,AF_color transparent)
;----------------------------------------------------------------------------
procstartdll _AF_dstTransBltLin
CallGeneric DstTransBltLin
procend _AF_dstTransBltLin
endcodeseg _vbeaf
endif
END
