A test card, also known as a test pattern or start-up/closedown test, is a television test signal, typically broadcast at times when the transmitter is active but no program is being broadcast. They are electronically generated test patterns, used for calibrating or troubleshooting the video output.
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OPTION EXPLICIT BITMAP ENABLE (16) COLOR BORDER BLACK CLS BLACK POSITIVE CONST cardColor = WHITE POSITIVE CONST cardWidth = SCREEN WIDTH / 10 POSITIVE CONST cardHeight = SCREEN HEIGHT / 10 POSITIVE CONST verticalLines = ( SCREEN WIDTH / cardWidth ) + 1 POSITIVE CONST cardXMax = verticalLines - 1 POSITIVE CONST horizontalLines = ( SCREEN HEIGHT / cardHeight ) + 1 POSITIVE CONST cardYMax = horizontalLines - 1 POSITIVE CONST cardEffectiveWidth = cardWidth - 2 POSITIVE CONST cardEffectiveHeight = cardHeight - 2 ' DIM colors(16) = #{ _ ' BLACK, WHITE, BROWN, LAVENDER, LIGHT BLUE, LIGHT GREEN, LIGHT RED, OLIVE GREEN, _ ' PEACH, PINK, VIOLET, DARK BLUE, TAN, MAGENTA, TURQUOISE, YELLOW GREEN _ ' } ' DIM primary(16) = #{ _ ' DARK RED, RED, LIGHT RED, DARK BLUE, BLUE, LIGHT BLUE, WHITE, BLACK, _ ' DARK GREEN, GREEN, LIGHT GREEN, WHITE, TAN, TURQUOISE, YELLOW GREEN, WHITE _ ' } DIM primary2(16) = #{ _ DARK RED, RED, LIGHT RED, DARK BLUE, BLUE, LIGHT BLUE, WHITE, BLACK, _ DARK GREEN, GREEN, LIGHT GREEN, WHITE, BROWN, LAVENDER, OLIVE GREEN, WHITE _ } PROCEDURE drawLines DIM lineIndex AS BYTE FOR lineIndex = 1 TO ( horizontalLines - 1 ) LINE 0, lineIndex * cardHeight TO (SCREEN WIDTH - 1), lineIndex * cardHeight, cardColor NEXT lineIndex FOR lineIndex = 1 TO ( verticalLines - 1 ) LINE lineIndex * cardWidth, 0 TO lineIndex * cardWidth, (SCREEN HEIGHT - 1), cardColor NEXT lineIndex END PROCEDURE PROCEDURE drawColors ' SHARED colors, primary, primary2 SHARED primary2 DIM colorIndex AS BYTE DIM cardX1 AS POSITION DIM cardY1 AS POSITION DIM cardX2 AS POSITION DIM cardY2 AS POSITION cardX1 = cardWidth + 1 cardY1 = 1 cardX2 = cardX1 + cardEffectiveWidth cardY2 = cardY1 + cardEffectiveHeight FOR colorIndex = 0 TO UBOUND( primary2 ) - 1 IF colorIndex = 8 THEN cardX1 = cardWidth + 1 cardX2 = cardX1 + cardEffectiveWidth ADD cardY1, cardHeight ADD cardY2, cardHeight ENDIF IF colorIndex = 0 OR colorIndex = 8 THEN LOCATE 0, ( cardY1 / FONT HEIGHT ) + 1 : PRINT " COLORS " ENDIF BAR cardX1, cardY1 TO cardX2, cardY2, primary2( colorIndex ) ADD cardX1, cardWidth ADD cardX2, cardWidth NEXT END PROCEDURE PROCEDURE drawGreys DIM cardX1 AS POSITION DIM cardY1 AS POSITION DIM cardX2 AS POSITION DIM cardY2 AS POSITION cardY1 = 3*cardHeight + 1 cardX1 = 2*cardWidth + 1 cardY2 = cardY1 + cardHeight - 2 cardX2 = cardX1 + cardEffectiveWidth LOCATE 0, ( cardY1 / FONT HEIGHT ) + 1 : PRINT " GREY" BAR cardX1, cardY1 TO cardX2, cardY2, DARK GREY ADD cardX1, cardWidth ADD cardX2, cardWidth BAR cardX1, cardY1 TO cardX2, cardY2, GREY ADD cardX1, cardWidth ADD cardX2, cardWidth BAR cardX1, cardY1 TO cardX2, cardY2, LIGHT GREY ADD cardX1, cardWidth ADD cardX2, cardWidth cardX1 = 3*cardWidth + 1 cardX2 = cardX1 + cardEffectiveWidth ADD cardY1, cardHeight ADD cardY2, cardHeight LOCATE 0, ( cardY1 / FONT HEIGHT ) + 1 : PRINT " WHITE" BAR cardX1, cardY1 TO cardX2, cardY2, DARK WHITE ADD cardX1, cardWidth ADD cardX2, cardWidth BAR cardX1, cardY1 TO cardX2, cardY2, WHITE ADD cardX1, cardWidth ADD cardX2, cardWidth BAR cardX1, cardY1 TO cardX2, cardY2, LIGHT WHITE ADD cardX1, cardWidth ADD cardX2, cardWidth END PROCEDURE PROCEDURE drawMonoscope CIRCLE SCREEN WIDTH / 2, SCREEN HEIGHT / 2, MIN( SCREEN WIDTH / 2, SCREEN HEIGHT / 2 ), cardColor END PROCEDURE drawLines[] drawColors[] drawGreys[] drawMonoscope[]
The instructions here refer to compiling the example from the command line. For Microsoft Windows
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In order to compile the example, type this command on the command line:
Linux
ugbc.cpc -O dsk -o contrib_testcard.dsk contrib_testcard.bas
Windows
ugbc.cpc.exe -O dsk -o contrib_testcard.dsk contrib_testcard.bas
For Microsoft Windows users we suggest using UGBASIC-IDE, which allows
you to download and compile this example with just one click.
In order to compile the example, type this command on the command line:
Linux
ugbc.c128 -O prg -o contrib_testcard.prg contrib_testcard.bas
Windows
ugbc.c128.exe -O prg -o contrib_testcard.prg contrib_testcard.bas
For Microsoft Windows users we suggest using UGBASIC-IDE, which allows
you to download and compile this example with just one click.
In order to compile the example, type this command on the command line:
Linux
ugbc.c64 -O prg -o contrib_testcard.prg contrib_testcard.bas
Windows
ugbc.c64.exe -O prg -o contrib_testcard.prg contrib_testcard.bas
For Microsoft Windows users we suggest using UGBASIC-IDE, which allows
you to download and compile this example with just one click.
In order to compile the example, type this command on the command line:
Linux
ugbc.msx1 -O rom -o contrib_testcard.rom contrib_testcard.bas
Windows
ugbc.msx1.exe -O rom -o contrib_testcard.rom contrib_testcard.bas
For Microsoft Windows users we suggest using UGBASIC-IDE, which allows
you to download and compile this example with just one click.
In order to compile the example, type this command on the command line:
Linux
ugbc.pc128op -O k7 -o contrib_testcard.k7 contrib_testcard.bas
Windows
ugbc.pc128op.exe -O k7 -o contrib_testcard.k7 contrib_testcard.bas
For Microsoft Windows users we suggest using UGBASIC-IDE, which allows
you to download and compile this example with just one click.
In order to compile the example, type this command on the command line:
Linux
ugbc.coco3 -O bin -o contrib_testcard.bin contrib_testcard.bas
Windows
ugbc.coco3.exe -O bin -o contrib_testcard.bin contrib_testcard.bas
For Microsoft Windows users we suggest using UGBASIC-IDE, which allows
you to download and compile this example with just one click.
In order to compile the example, type this command on the command line:
Linux
ugbc.to8 -O k7 -o contrib_testcard.k7 contrib_testcard.bas
Windows
ugbc.to8.exe -O k7 -o contrib_testcard.k7 contrib_testcard.bas
For Microsoft Windows users we suggest using UGBASIC-IDE, which allows
you to download and compile this example with just one click.
If you have found a problem trying to run this example, if you think there is a bug or, more
simply, you would like it to be improved, open an issue for this example on GitHub.
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