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https://github.com/ABelliqueux/nolibgs_hello_worlds/tree/main/hello_bs
Note that your image's width and height must be multiples of 16, as the size of a MDEC decoded macroblock is 16x16.
MC32
can convert these formats to BS : TIM, RGB, YUV.
Convert your image to a 24bpp TIM with img2tim
:
img2tim -bpp 24 -o output.tim input.png
Then use MC32
as instructed below.
Result :
identify bace.tim
bace.tim TIM 320x240 320x240+0+0 8-bit sRGB 230420B 0.000u 0:00.000
You can convert your image to RGB with:
convert input.png RGB:output.rgb
Result :
identify -size 320x240 -depth 8 RGB:bace.rgb
RGB:bace.rgb=>bace.rgb RGB 320x240 320x240+0+0 8-bit sRGB 230400B 0.000u 0:00.003
You can convert your image to YUV with:
convert input.png UYVY:output.yuv
Result :
dentify -size 320x240 UYVY:bace.yuv
UYVY:bace.yuv=>bace.yuv UYVY 320x240 320x240+0+0 8-bit YCbCr 153600B 0.000u 0:00.005
Use the MC32
tool conversion tool to import the image, specifying the right dimensions, and convert to bs
with those settings :
Note that a BS image must have a width and height that is a multiple of 16
Input: RGB, Output: bs
MDEC version : 2
Custom: Size in sectors or (2048 * sector number) bytes, Variable frame size
mc32.exe
can be used from the command line with scripts. See here for more details ; https://github.com/ABelliqueux/nolibgs_hello_worlds/wiki/STR#via-the-command-line
MC32 manual: http://psx.arthus.net/sdk/Psy-Q/DOCS/Devrefs/Dataconv.pdf, p.14 to 58
img2tim : https://github.com/Lameguy64/img2tim
MC32 : http://psx.arthus.net/tools/pimp-psx.zip
mdecnote : http://psx.arthus.net/sdk/Psy-Q/DOCS/TECHNOTE/mdecnote.pdf
PSX RGB and YUV format : http://psx.arthus.net/sdk/Psy-Q/DOCS/Devrefs/Dataconv.pdf , p.68
YUV pixel format : https://www.fourcc.org/pixel-format/yuv-uyvy/ RGB pixelformat : https://www.fourcc.org/pixel-format/rgb-bi_rgb/
RGB<>YUV conversion formulas : https://www.fourcc.org/fccyvrgb.php