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diskfont.pas
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Pascal/Delphi Source File
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1998-09-22
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4KB
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193 lines
{
This file is part of the Free Pascal run time library.
A file in Amiga system run time library.
Copyright (c) 1998 by Nils Sjoholm
member of the Amiga RTL development team.
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
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.
**********************************************************************}
unit diskfont;
INTERFACE
uses exec, graphics;
Const
MAXFONTPATH = 256;
Type
pFontContents = ^tFontContents;
tFontContents = record
fc_FileName : Array [0..MAXFONTPATH-1] of Char;
fc_YSize : Word;
fc_Style : Byte;
fc_Flags : Byte;
end;
pTFontContents = ^tTFontContents;
tTFontContents = record
tfc_FileName : Array[0..MAXFONTPATH-3] of Char;
tfc_TagCount : Word;
tfc_YSize : Word;
tfc_Style,
tfc_Flags : Byte;
END;
Const
FCH_ID = $0f00;
TFCH_ID = $0f02;
OFCH_ID = $0f03;
Type
pFontContentsHeader = ^tFontContentsHeader;
tFontContentsHeader = record
fch_FileID : Word;
fch_NumEntries : Word;
end;
Const
DFH_ID = $0f80;
MAXFONTNAME = 32;
Type
pDiskFontHeader = ^tDiskFontHeader;
tDiskFontHeader = record
dfh_DF : tNode;
dfh_FileID : Word;
dfh_Revision : Word;
dfh_Segment : Longint;
dfh_Name : Array [0..MAXFONTNAME-1] of Char;
dfh_TF : tTextFont;
end;
Const
AFB_MEMORY = 0;
AFF_MEMORY = 1;
AFB_DISK = 1;
AFF_DISK = 2;
AFB_SCALED = 2;
AFF_SCALED = $0004;
AFB_BITMAP = 3;
AFF_BITMAP = $0008;
AFB_TAGGED = 16;
AFF_TAGGED = $10000;
Type
pAvailFonts = ^tAvailFonts;
tAvailFonts = record
af_Type : Word;
af_Attr : tTextAttr;
end;
pTAvailFonts = ^tTAvailFonts;
tTAvailFonts = record
taf_Type : Word;
taf_Attr : tTTextAttr;
END;
pAvailFontsHeader = ^tAvailFontsHeader;
tAvailFontsHeader = record
afh_NumEntries : Word;
end;
VAR DiskfontBase : pLibrary;
FUNCTION AvailFonts(buffer : pCHAR; bufBytes : LONGINT; flags : LONGINT) : LONGINT;
PROCEDURE DisposeFontContents(fontContentsHeader : pFontContentsHeader);
FUNCTION NewFontContents(fontsLock : BPTR; fontName : pCHAR) : pFontContentsHeader;
FUNCTION NewScaledDiskFont(sourceFont : pTextFont; destTextAttr : pTextAttr) : pDiskFontHeader;
FUNCTION OpenDiskFont(textAttr : pTextAttr) : pTextFont;
IMPLEMENTATION
FUNCTION AvailFonts(buffer : pCHAR; bufBytes : LONGINT; flags : LONGINT) : LONGINT;
BEGIN
ASM
MOVE.L A6,-(A7)
MOVEA.L buffer,A0
MOVE.L bufBytes,D0
MOVE.L flags,D1
MOVEA.L DiskfontBase,A6
JSR -036(A6)
MOVEA.L (A7)+,A6
MOVE.L D0,@RESULT
END;
END;
PROCEDURE DisposeFontContents(fontContentsHeader : pFontContentsHeader);
BEGIN
ASM
MOVE.L A6,-(A7)
MOVEA.L fontContentsHeader,A1
MOVEA.L DiskfontBase,A6
JSR -048(A6)
MOVEA.L (A7)+,A6
END;
END;
FUNCTION NewFontContents(fontsLock : BPTR; fontName : pCHAR) : pFontContentsHeader;
BEGIN
ASM
MOVE.L A6,-(A7)
MOVEA.L fontsLock,A0
MOVEA.L fontName,A1
MOVEA.L DiskfontBase,A6
JSR -042(A6)
MOVEA.L (A7)+,A6
MOVE.L D0,@RESULT
END;
END;
FUNCTION NewScaledDiskFont(sourceFont : pTextFont; destTextAttr : pTextAttr) : pDiskFontHeader;
BEGIN
ASM
MOVE.L A6,-(A7)
MOVEA.L sourceFont,A0
MOVEA.L destTextAttr,A1
MOVEA.L DiskfontBase,A6
JSR -054(A6)
MOVEA.L (A7)+,A6
MOVE.L D0,@RESULT
END;
END;
FUNCTION OpenDiskFont(textAttr : pTextAttr) : pTextFont;
BEGIN
ASM
MOVE.L A6,-(A7)
MOVEA.L textAttr,A0
MOVEA.L DiskfontBase,A6
JSR -030(A6)
MOVEA.L (A7)+,A6
MOVE.L D0,@RESULT
END;
END;
END. (* UNIT DISKFONT *)