TGAファイルを作る
FILE GETNAME F$, "BMP,JPG,GIFファイル|*.BMP;*.JPG;*.GIF"
IF F$="" THEN STOP
CALL PICTURELOAD(F$,XSIZE,YSIZE)
INPUT PROMPT "SAVE FILENAME(.TGA)=":F$
IF POS(F$,".")=0 THEN LET F$=F$ & ".TGA"
CALL TGASAVEFULL(F$,0,0,XSIZE-1,YSIZE-1)
END
EXTERNAL SUB TGASAVEFULL(F$,XS,YS,XE,YE)
OPTION CHARACTER BYTE
IF F$="" THEN STOP
LET XSIZE=XE-XS+1
LET YSIZE=YE-YS+1
OPEN #1:NAME F$,ACCESS OUTPUT
PRINT #1:CHR$(0);
PRINT #1:CHR$(0);
PRINT #1:CHR$(2);
PRINT #1:MKI$(0);
PRINT #1:MKI$(0);
PRINT #1:CHR$(0);
PRINT #1:MKI$(0);
PRINT #1:MKI$(0);
PRINT #1:MKI$(XSIZE);
PRINT #1:MKI$(YSIZE);
PRINT #1:CHR$(24);
PRINT #1:CHR$(0);
FOR Y=YE TO YS STEP -1
FOR X=XS TO XE
CALL GETPOINT(X,Y,R,G,B)
PRINT #1:CHR$(B);
PRINT #1:CHR$(G);
PRINT #1:CHR$(R);
NEXT X
NEXT Y
CLOSE #1
END SUB
EXTERNAL FUNCTION MKI$(A)
OPTION CHARACTER BYTE
DECLARE STRING A$,B$
IF A<0 THEN LET A=A+65536
LET A$=CHR$(MOD(A,256))
LET B$=CHR$(INT(A/256))
LET MKI$=A$ & B$
END FUNCTION
EXTERNAL FUNCTION MKL$(A)
OPTION CHARACTER BYTE
DECLARE STRING A$,B$,C$,D$
IF A<0 THEN LET A=A+2^32
LET A$=CHR$(MOD(A,256))
LET B$=CHR$(MOD(INT(A/256),256))
LET C$=CHR$(MOD(INT(A/65536),256))
LET D$=CHR$(MOD(INT(A/16777216),256))
LET MKL$=A$ & B$ & C$ & D$
END FUNCTION
EXTERNAL SUB RGB(X,R,G,B)
LET B=MOD(INT(X/65536),256)
LET G=MOD(INT(X/256),256)
LET R=MOD(X,256)
END SUB
EXTERNAL SUB GETPOINT(X,Y,R,G,B)
ASK PIXEL VALUE (X,Y) C
CALL RGB(C,R,G,B)
END SUB
EXTERNAL SUB PSET(X,Y,R,G,B)
SET COLOR COLORINDEX(R/255,G/255,B/255)
PLOT POINTS: X , Y
END SUB
EXTERNAL SUB PICTURELOAD(N$,XSIZE,YSIZE)
SET COLOR MODE "NATIVE"
CLEAR
SET POINT STYLE 1
GLOAD N$
LET XSIZE=PIXELX(1)+1
LET YSIZE=PIXELY(1)+1
SET BITMAP SIZE XSIZE,YSIZE
SET WINDOW 0,XSIZE-1,YSIZE-1,0
END SUB
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