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@@ -1,5 +1,43 @@
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# gd2-asset
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+
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+usage:
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+
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+ gd2asset <options> <assets>
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+ gd3asset <options> <assets>
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+
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+ -3 target GD3 (FT810 series)
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+ -d dither all pixel conversions
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+ -f <name> output asset file (default is header file)
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+ -o <name> output header file
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+
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+ If no output header file is given, then "default_assets.h" is used
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+
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+ Each asset is a filename, optionally followed by some var=val
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+ assignments. For example:
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+ pic1.png image, format ARGB4
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+ pic2.jpg,format=L8 image, format L8
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+ serif.ttf,size=16 font, 16 pixels high
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+
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+ Options various file types:
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+
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+ jpg,png,bmp,gif:
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+ format L1 L2 L4 L8 RGB332 ARGB2 ARGB4 RGB565 ARGB1555. Default ARGB4
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+
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+ ttf
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+ size height in pixels. Default 12
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+ format L1 L2 L4 L8 RGB332 ARGB2 ARGB4 RGB565 ARGB1555. Default ARGB4
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+ topchar maximum ASCII code encoded. Default 127
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+
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+ wav
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+ (no options)
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+
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+ The assets are compiled into flash, or if the "-f" option is given
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+ into a file. In this case the file should be copied to the
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+ microSD card.
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+ In either case, calling LOAD_ASSETS() from the program loads all
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+ assets.
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+
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To test run `go`, it should produce:
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Assets report
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