I am making a GBA game using the devkitARM toolchain, and I would like to start using sprites. I am using a very simple tutorial, and it tells me to use gfx2gba to convert my bitmaps to C arrays. Here is my bitmap:
In case anything went wrong, I then process the array and convert it back into an image, but something corrupts the image or something like that:
By the way, I may have changed the color palette while converting it back, but that isn't the main thing.
What am I doing wrong? My gfx2gba command is gfx2gba -fsrc -c16 -t8 bitmap.bmp. Here is the generated C file:
//
// numbers (288 uncompressed bytes)
//
extern const unsigned char numbers_Bitmap[288] = {
0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x20, 0x22, 0x22, 0x02, 0x20, 0x22, 0x22, 0x22, 0x20, 0x22,
0x22, 0x22, 0x20, 0x22, 0x22, 0x22, 0x20, 0x22, 0x22, 0x02, 0x00, 0x22, 0x22, 0x22, 0x22, 0x22,
0x33, 0x33, 0x33, 0x33, 0x33, 0x03, 0x30, 0x33, 0x33, 0x30, 0x03, 0x33, 0x33, 0x33, 0x03, 0x33,
0x33, 0x03, 0x30, 0x33, 0x33, 0x30, 0x33, 0x33, 0x33, 0x00, 0x00, 0x33, 0x33, 0x33, 0x33, 0x33,
0x99, 0x99, 0x99, 0x99, 0x99, 0x09, 0x90, 0x99, 0x99, 0x90, 0x09, 0x99, 0x99, 0x99, 0x09, 0x99,
0x99, 0x09, 0x90, 0x99, 0x99, 0x99, 0x09, 0x99, 0x99, 0x90, 0x09, 0x99, 0x99, 0x09, 0x90, 0x99,
0x11, 0x11, 0x11, 0x11, 0x11, 0x01, 0x10, 0x11, 0x11, 0x10, 0x10, 0x11, 0x01, 0x11, 0x10, 0x11,
0x01, 0x00, 0x00, 0x10, 0x11, 0x11, 0x10, 0x11, 0x11, 0x11, 0x10, 0x11, 0x11, 0x11, 0x11, 0x11,
0x44, 0x44, 0x44, 0x44, 0x44, 0x00, 0x00, 0x44, 0x44, 0x40, 0x44, 0x44, 0x44, 0x00, 0x40, 0x44,
0x44, 0x44, 0x04, 0x44, 0x44, 0x44, 0x04, 0x44, 0x44, 0x00, 0x40, 0x44, 0x44, 0x44, 0x44, 0x44,
0x77, 0x77, 0x77, 0x77, 0x77, 0x07, 0x70, 0x77, 0x77, 0x70, 0x77, 0x77, 0x77, 0x00, 0x70, 0x77,
0x77, 0x70, 0x07, 0x77, 0x77, 0x70, 0x07, 0x77, 0x77, 0x07, 0x70, 0x77, 0x77, 0x77, 0x77, 0x77,
0x55, 0x55, 0x55, 0x55, 0x55, 0x00, 0x00, 0x55, 0x55, 0x55, 0x05, 0x55, 0x55, 0x55, 0x50, 0x55,
0x55, 0x55, 0x50, 0x55, 0x55, 0x05, 0x55, 0x55, 0x55, 0x05, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55,
0x66, 0x66, 0x66, 0x66, 0x66, 0x06, 0x60, 0x66, 0x66, 0x60, 0x06, 0x66, 0x66, 0x60, 0x06, 0x66,
0x66, 0x06, 0x60, 0x66, 0x66, 0x60, 0x06, 0x66, 0x66, 0x60, 0x06, 0x66, 0x66, 0x06, 0x60, 0x66,
0x88, 0x88, 0x88, 0x88, 0x88, 0x08, 0x80, 0x88, 0x88, 0x80, 0x08, 0x88, 0x88, 0x80, 0x08, 0x88,
0x88, 0x08, 0x00, 0x88, 0x88, 0x88, 0x08, 0x88, 0x88, 0x08, 0x80, 0x88, 0x88, 0x88, 0x88, 0x88
};
And here's the palette:
extern const unsigned short master_Palette[16] = {
0x0000, 0x0390, 0x209c, 0x221c, 0x2304, 0x6108, 0x6114, 0x6280,
0x629c, 0x03ff, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
};
EDIT: If anyone wanted to see the code, here is my Python script for converting back into an image:
a = [
2,2,2,2,2,2,2,2,2,2,2,2,2,0,2,2,2,2,0,2,2,0,2,2,2,2,2,2,2,0,2,2,
2,2,2,2,2,0,2,2,2,2,2,2,2,0,2,2,2,2,0,2,0,0,2,2,2,2,2,2,2,2,2,2,
3,3,3,3,3,3,3,3,3,3,0,3,3,0,3,3,3,3,3,0,0,3,3,3,3,3,3,3,0,3,3,3,
3,3,0,3,3,0,3,3,3,3,3,0,3,3,3,3,3,3,0,0,0,0,3,3,3,3,3,3,3,3,3,3,
9,9,9,9,9,9,9,9,9,9,0,9,9,0,9,9,9,9,9,0,0,9,9,9,9,9,9,9,0,9,9,9,
9,9,0,9,9,0,9,9,9,9,9,9,0,9,9,9,9,9,9,0,0,9,9,9,9,9,0,9,9,0,9,9,
1,1,1,1,1,1,1,1,1,1,0,1,1,0,1,1,1,1,1,0,1,0,1,1,0,1,1,1,1,0,1,1,
0,1,0,0,0,0,1,0,1,1,1,1,1,0,1,1,1,1,1,1,1,0,1,1,1,1,1,1,1,1,1,1,
4,4,4,4,4,4,4,4,4,4,0,0,0,0,4,4,4,4,4,0,4,4,4,4,4,4,0,0,4,0,4,4,
4,4,4,4,0,4,4,4,4,4,4,4,0,4,4,4,4,4,0,0,4,0,4,4,4,4,4,4,4,4,4,4,
7,7,7,7,7,7,7,7,7,7,0,7,7,0,7,7,7,7,7,0,7,7,7,7,7,7,0,0,7,0,7,7,
7,7,7,0,0,7,7,7,7,7,7,0,0,7,7,7,7,7,0,7,7,0,7,7,7,7,7,7,7,7,7,7,
5,5,5,5,5,5,5,5,5,5,0,0,0,0,5,5,5,5,5,5,0,5,5,5,5,5,5,5,5,0,5,5,
5,5,5,5,5,0,5,5,5,5,0,5,5,5,5,5,5,5,0,5,5,5,5,5,5,5,5,5,5,5,5,5,
6,6,6,6,6,6,6,6,6,6,0,6,6,0,6,6,6,6,6,0,0,6,6,6,6,6,6,0,0,6,6,6,
6,6,0,6,6,0,6,6,6,6,6,0,0,6,6,6,6,6,6,0,0,6,6,6,6,6,0,6,6,0,6,6,
8,8,8,8,8,8,8,8,8,8,0,8,8,0,8,8,8,8,8,0,0,8,8,8,8,8,8,0,0,8,8,8,
8,8,0,8,0,0,8,8,8,8,8,8,0,8,8,8,8,8,0,8,8,0,8,8,8,8,8,8,8,8,8,8,
]
def x(y):
if y == 0:
return 0, 0, 0
elif y == 2:
return 255, 0, 0
elif y == 3:
return 255, 128, 0
elif y == 9:
return 255, 255, 0
elif y == 1:
return 128, 255, 0
elif y == 4:
return 0, 128, 0
elif y == 7:
return 0, 128, 255
elif y == 5:
return 0, 0, 255
elif y == 6:
return 128, 0, 255
elif y == 8:
return 255, 0, 255
elif y == 10:
return 255, 255, 255
import numpy as np
from PIL import Image
b = np.array(list(map(x, a)))
c = b.astype(np.uint8).reshape((72, 8, 3))
Image.fromarray(c).save("numbers.png")