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font.asm
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564 lines (515 loc) · 17.4 KB
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; Dust Ultimate Game Library (DUGL)
; Copyright (C) 2025 Fakhri Feki
;
; 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 <https://www.gnu.org/licenses/>.
;
; contact: libdugl(at)hotmail.com
;=============================================================================
%include "PARAM.asm"
%include "DGUTILS.asm"
; enable windows/linux win32/elf32 building
%pragma elf32 gprefix
%pragma win32 gprefix _
; GLOBAL Functions
GLOBAL SetFONT, GetFONT, OutText16, WidthText, WidthPosText, PosWidthText
; GLOBAL Variables
GLOBAL CurFONT, FntPtr, FntHaut, FntDistLgn, FntLowPos, FntHighPos
GLOBAL FntSens, FntTab, FntX, FntY, FntCol
; EXTERN GLOBAL VARS
EXTERN vlfb,rlfb,ResH,ResV, MaxX, MaxY, MinX, MinY, OrgY, OrgX, SizeSurf,OffVMem
EXTERN BitsPixel, ScanLine,Mask,NegScanLine
EXTERN QBlue16Mask, QGreen16Mask, QRed16Mask, WBGR16Mask
EXTERN PntInitCPTDbrd
EXTERN MaskB_RGB16, MaskG_RGB16, MaskR_RGB16, RGB16_PntNeg, Mask2B_RGB16, Mask2G_RGB16, Mask2R_RGB16
EXTERN RGBDebMask_GGG, RGBDebMask_IGG, RGBDebMask_GIG, RGBDebMask_IIG, RGBDebMask_GGI, RGBDebMask_IGI, RGBDebMask_GII, RGBDebMask_III
EXTERN RGBFinMask_GGG, RGBFinMask_IGG, RGBFinMask_GIG, RGBFinMask_IIG, RGBFinMask_GGI, RGBFinMask_IGI, RGBFinMask_GII, RGBFinMask_III
BITS 32
SECTION .text ALIGN=32
;===========================
;=================== FONT ==
SetFONT:
ARG SF, 4
MOV EAX,[EBP+SF]
MOVDQU xmm0,[EAX]
MOVDQU xmm1,[EAX+16]
MOVDQA [CurFONT],xmm0
MOVDQA [CurFONT+16],xmm1
RETURN
GetFONT:
ARG CF, 4
MOV EAX,[EBP+CF]
MOVDQA xmm0,[CurFONT]
MOVDQA xmm1,[CurFONT+16]
MOVDQU [EAX],xmm0
MOVDQU [EAX+16],xmm1
RETURN
WidthText:
ARG LStr, 4
PUSH EBX
PUSH ESI
MOV EBX,[FntPtr]
XOR ECX,ECX
OR EBX,EBX
JZ .FinLargText
MOV ESI,[EBP+LStr]
XOR EAX,EAX
.BcCalcLarg:
LODSB
OR AL,AL
JZ .FinLargText
CMP AL,13
JZ .FinLargText
CMP AL,10
JZ .FinLargText
CMP AL,9 ; Tab
JNE .PasTrtTab
MOV AL,32
MOVSX EDX,BYTE [EBX+EAX*8+4] ; space
XOR EAX,EAX
MOV AL,[FntTab]
IMUL EDX,EAX
ADD ECX,EDX
JMP SHORT .BcCalcLarg
.PasTrtTab:
MOVSX EDX,BYTE [EBX+EAX*8+4]
ADD ECX,EDX
JMP SHORT .BcCalcLarg
.FinLargText:
OR ECX,ECX
JNS .Positiv
NEG ECX
.Positiv:
MOV EAX,ECX
OR EAX,EAX
JZ .ZeroRien
DEC EAX
.ZeroRien:
POP ESI
POP EBX
RETURN
WidthPosText:
ARG LPStr, 4, LPPos, 4
PUSH EBX
PUSH EDI
PUSH ESI
MOV EBX,[FntPtr]
XOR ECX,ECX
OR EBX,EBX
JZ .FinLargText
MOV ESI,[EBP+LPStr]
MOV EDI,[EBP+LPPos]
XOR EAX,EAX
OR EDI,EDI
JZ .FinLargText
ADD EDI,ESI
.BcCalcLarg:
XOR EAX,EAX
CMP EDI,ESI
JBE .FinLargText
LODSB
OR AL,AL
JZ .FinLargText
CMP AL,13
JE .FinLargText
CMP AL,10
JE .FinLargText
CMP AL,9 ; Tab
JNE .PasTrtTab
MOV AL,32
MOVSX EDX,BYTE [EBX+EAX*8+4] ; space
XOR EAX,EAX
MOV AL,[FntTab]
IMUL EDX,EAX
ADD ECX,EDX
JMP SHORT .BcCalcLarg
.PasTrtTab:
MOVSX EDX,BYTE [EBX+EAX*8+4]
ADD ECX,EDX
JMP SHORT .BcCalcLarg
.FinLargText:
OR ECX,ECX
JNS .Positiv
NEG ECX
.Positiv:
MOV EAX,ECX
OR EAX,EAX
JZ .ZeroRien
DEC EAX
.ZeroRien:
POP ESI
POP EDI
POP EBX
RETURN
PosWidthText:
ARG PLStr, 4, PLLarg, 4
PUSH EBX
PUSH EDI
PUSH ESI
MOV EBX,[FntPtr]
XOR ECX,ECX
OR EBX,EBX
JZ .FinPosLargText
MOV ESI,[EBP+PLStr]
XOR EDI,EDI
.BcCalcLarg:
XOR EAX,EAX
CMP ECX,[EBP+PLLarg]
JAE .FinPosLargText
LODSB
INC EDI
OR AL,AL
JZ .FinPosLargText
CMP AL,13
JE .FinPosLargText
CMP AL,10
JE .FinPosLargText
CMP AL,9 ; Tab
JNE .PasTrtTab
MOV AL,32
MOVSX EDX,BYTE [EBX+EAX*8+4] ; space
XOR EAX,EAX
MOV AL,[FntTab]
IMUL EDX,EAX
OR EDX,EDX
JS .NegTab
ADD ECX,EDX
JMP SHORT .BcCalcLarg
.NegTab:
SUB ECX,EDX
JMP SHORT .BcCalcLarg
.PasTrtTab:
MOVSX EDX,BYTE [EBX+EAX*8+4]
OR EDX,EDX
JS .NegNorm
ADD ECX,EDX
JMP SHORT .BcCalcLarg
.NegNorm:
SUB ECX,EDX
JMP SHORT .BcCalcLarg
.FinPosLargText:
OR EDI,EDI
JZ .PosZero
DEC EDI
.PosZero:
MOV EAX,EDI
POP ESI
POP EDI
POP EBX
RETURN
ALIGN 32
OutText16:
ARG Str16, 4
PUSH ESI
PUSH EBX
PUSH EDI
MOV ESI,[EBP+Str16]
XOR EAX,EAX
MOV EBX,[FntPtr]
.BcOutChar:
OR AL,[ESI]
JZ .FinOutText
INC ESI
PUSH EBX
PUSH ESI
;**************** Affichage et traitement **********************************
;***************************************************************************
CMP AL,13 ;** Debut Cas Special
MOVSX ESI,BYTE [EBX+EAX*8+4] ; PlusX
JE .DebLigne
XOR EDX,EDX
CMP AL,10
MOV DL,[EBX+EAX*8+7] ;Largeur
JE .DebNextLigne
XOR ECX,ECX
CMP AL,9
MOV CL,[EBX+EAX*8+6] ; Haut
JE .TabCar ;** Fin Cas Special
MOVSX EDI,BYTE [EBX+EAX*8+5] ; PlusLgn
MOV [ChLarg],EDX
MOV [ChPlusX],ESI
MOVD xmm0,[EBX+EAX*8] ; PtrDat
OR ESI,ESI
MOV [ChPlusLgn],EDI
MOV [ChHaut],ECX
JNS .GauchDroit
JZ SHORT .RienZero1
LEA EAX,[ESI+1]
ADD [FntX],EAX
.GauchDroit:
.RienZero1:
MOV EBP,[FntX] ; MinX
ADD EDI,[FntY] ; MinY
LEA EBX,[EBP+EDX-1] ; MaxX: EBX=MinX+Larg-1
LEA ESI,[EDI+ECX-1] ; MaxY: ESI=MinY+Haut-1
MOVD xmm2,EBX ; PMaxX
MOVD xmm1,EBP ; PMinX
PINSRD xmm2,ESI,1 ; PMaxX | PMaxY
MOVQ xmm6,[MinX]
PINSRD xmm1,EDI,1 ; PMinX | PMinY
MOVQ xmm7,[MaxX]
MOVQ xmm3,xmm2
MOVQ xmm5,xmm6
PCMPGTD xmm3,xmm7 ; Max > PMax
PCMPGTD xmm5,xmm1 ; PMin > Min
POR xmm3,xmm5
PMOVMSKB ECX,xmm3 ; (CMaxX > MaxX || CMaxY > MaxY || CMinX < MinX || CMinY < MinY) then char is clipped
JECXZ .CharIn
JMP .CharClip
;****** trace caractere IN *****************************
.CharIn:
MOV ECX,[ScanLine]
MOV EBP,EDX ;Largeur
IMUL EDI,ECX
LEA ECX,[ECX+EDX*2]
NEG EDI
MOV [ChPlus],ECX
ADD EDI,[FntX]
ADD EDI,[FntX]
MOV EDX,[ChHaut]
ADD EDI,[vlfb]
XOR EAX,EAX
MOVD ESI,xmm0
MOV EAX,[FntCol]
.LdNext:
MOV EBX,[ESI]
MOV CL,32
ADD ESI,BYTE 4
;ALIGN 4
.BcDrCarHline:
BT EBX,0
JNC SHORT .PasDrPixel
MOV [EDI],AX
.PasDrPixel:
SHR EBX,1
DEC EBP
LEA EDI,[EDI+2]
JZ SHORT .FinDrCarHline
DEC CL
JNZ SHORT .BcDrCarHline
JZ .LdNext
;ALIGN 4
.FinDrCarHline:
MOV EBX,[ESI]
SUB EDI,[ChPlus]
MOV CL,32
LEA ESI,[ESI+4]
DEC DL
MOV EBP,[ChLarg]
JNZ .BcDrCarHline
JMP .FinDrChar
;****** Trace Caractere Clip ***************************
.CharClip:
MOVQ xmm5,xmm6 ; MinX | MinY
PCMPGTD xmm1,xmm7 ; PMin > Max
PCMPGTD xmm5,xmm2 ; Min > PMax
POR xmm1,xmm5
PMOVMSKB ECX,xmm1 ; (CMaxX < MinX) || (CMaxY < MinY) || (CMinX > MaxX) || (CMinY > MaxY) then Char is completely out of the view
JECXZ .CtCharClip
JMP .FinDrChar
.CtCharClip:
; traitement MaxX********************************************
CMP EBX,[MaxX] ; MaxX>MaxX
MOV EAX,EBX
JLE .PasApPlus
SUB EAX,[MaxX] ; DXAp = EAX = MaxX-MaxX
SUB EDX,EAX ; EDX = Larg-DXAp
CMP EAX,BYTE 32
JL SHORT .PasApPlus
MOV DWORD [ChApPlus],4
JMP SHORT .ApPlus
.PasApPlus:
XOR EAX,EAX
MOV [ChApPlus],EAX
.ApPlus:
; traitement MinX********************************************
MOVD EAX,xmm6 ; [MinX]
SUB EAX,EBP
JLE .PasAvPlus
SUB EDX,EAX
CMP EAX,BYTE 32
JL .PasAvPlus2
MOV DWORD [ChAvPlus],4
SUB AL,32
MOV AH,32
MOV [ChAvDecal],AL
SUB AH,AL
MOV [ChNbBitDat],AH
JMP SHORT .AvPlus
.PasAvPlus2:
MOV AH,32
MOV [ChAvDecal],AL
SUB AH,AL
MOV [ChNbBitDat],AH
XOR EAX,EAX
MOV [ChAvPlus],EAX
JMP SHORT .AvPlus
.PasAvPlus:
XOR EAX,EAX
MOV BYTE [ChNbBitDat],32
MOV [ChAvPlus],EAX
MOV [ChAvDecal],AL
.AvPlus:
; handling MaxY********************************************
CMP ESI,[MaxY] ; MaxY>MaxY
MOV ECX,[ChHaut]
MOV EAX,ESI
JLE .PasSupMaxY
SUB EAX,[MaxY] ; DY = EAX = MaxY-MaxY
SUB ECX,EAX ; ECX = Haut-DY
.PasSupMaxY:
; handling MinY********************************************
PEXTRD EAX,xmm6,1 ;[MinY]
SUB EAX,EDI
JLE .PasInfMinY
SUB ECX,EAX
PEXTRD EDI,xmm6,1 ;[MinY]
CMP DWORD [ChLarg],BYTE 32
JLE .Larg1DD
.Larg2DD:
IMUL EAX,BYTE 8
MOVD xmm7,EAX
PADDD xmm0,xmm7
JMP SHORT .PasInfMinY
.Larg1DD:
IMUL EAX,BYTE 4
MOVD xmm7,EAX
PADDD xmm0,xmm7
.PasInfMinY:
MOV [ChHaut],ECX
MOV [ChLarg],EDX
;************************************************
MOV ECX,[ScanLine]
MOV EBP,EDX ;Largeur
IMUL EDI,ECX
XOR EAX,EAX
LEA ECX,[ECX+EDX*2] ;
MOV AL,[ChAvDecal]
NEG EDI
MOV [ChPlus],ECX
ADD EDI,[FntX]
ADD EDI,[FntX] ; 2*FntX 16bpp
LEA EDI,[EDI+EAX*2] ; EDI +=2*ChAvDecal
MOV EDX,[ChHaut]
ADD EDI,[vlfb]
MOVD ESI,xmm0
MOV EAX,[FntCol] ;*************
ADD ESI,[ChAvPlus]
MOV EBX,[ESI]
MOV CL,[ChAvDecal]
MOV CH,[ChNbBitDat]
ADD ESI,BYTE 4
SHR EBX,CL
JMP SHORT .CBcDrCarHline
.CLdNext:
MOV EBX,[ESI]
MOV CH,32
ADD ESI,BYTE 4
;ALIGN 4
.CBcDrCarHline:
BT EBX,0
JNC SHORT .CPasDrPixel
MOV [EDI],AX
.CPasDrPixel:
SHR EBX,1
DEC EBP
LEA EDI,[EDI+2]
JZ SHORT .CFinDrCarHline
DEC CH
JNZ SHORT .CBcDrCarHline
JZ SHORT .CLdNext
;ALIGN 4
.CFinDrCarHline:
ADD ESI,[ChApPlus]
SUB EDI,[ChPlus]
ADD ESI,[ChAvPlus]
MOV CL,[ChAvDecal]
MOV EBX,[ESI]
MOV CH,[ChNbBitDat]
SHR EBX,CL
LEA ESI,[ESI+4]
DEC DL
MOV EBP,[ChLarg]
JNZ .CBcDrCarHline
.FinDrChar:;********************************************
MOV ESI,[ChPlusX]
OR ESI,ESI
JS SHORT .DroitGauch
JZ SHORT .RienZero2
ADD [FntX],ESI
.DroitGauch:
.RienZero2:
OR ESI,ESI
JNS SHORT .GauchDroit2
JZ .RienZero3
MOV EAX,[FntX]
DEC EAX
MOV [FntX],EAX
.GauchDroit2:
.RienZero3:
JMP SHORT .Norm
.DebNextLigne:
MOVZX EAX,BYTE [FntDistLgn] ;***debut trait Cas sp
MOV EBX,[FntY]
SUB EBX,EAX
MOV [FntY],EBX
.DebLigne:
CMP BYTE [FntSens], 0
JE SHORT .GchDrt
MOVD EBX,xmm7 ;[MaxX]
JMP SHORT .DrtGch
.GchDrt:
MOVD EBX,xmm6 ;[MinX]
.DrtGch:
MOV [FntX],EBX
JMP SHORT .Norm
.TabCar:
MOV AL,32 ; TAB
MOV ESI,[FntX]
MOVZX ECX,BYTE [FntTab]
MOVSX EAX,BYTE [EBX+EAX*8+4] ; PlusX
IMUL ECX,EAX
ADD ESI,ECX
MOV [FntX],ESI ;***********fin trait Cas sp
.Norm:
XOR EAX,EAX
POP ESI
POP EBX
JMP .BcOutChar
.FinOutText:
POP EDI
POP EBX
POP ESI
RETURN
SECTION .bss ALIGN=32
CurFONT:
FntPtr RESD 1
FntHaut RESB 1
FntDistLgn RESB 1
FntLowPos RESB 1
FntHighPos RESB 1
FntSens RESB 1
FntTab RESB 3 ; 2 DB reserved
FntX RESD 1
FntY RESD 1
FntCol RESD 1
FntResv RESD 2 ;---------------------
ChHaut RESD 1
ChLarg RESD 1
ChPlus RESD 1
ChPlusX RESD 1
ChPlusLgn RESD 1
ChAvPlus RESD 1
ChApPlus RESD 1
ChAvDecal RESB 1
ChNbBitDat RESB 1
ChResvW RESW 1;-----------------------
clr RESD 1