1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
#include "ndstool.h"
#include "raster.h"
#include "banner.h"
#include "crc.h"
const char *bannerLanguages[] = { "Japanese", "English", "French", "German", "Italian", "Spanish" };
#define RGB16(r,g,b) ((r) | (g<<5) | (b<<10))
/*
* RGBQuadToRGB16
*/
inline unsigned short RGBQuadToRGB16(RGBQUAD quad)
{
unsigned short r = quad.rgbRed;
unsigned short g = quad.rgbGreen;
unsigned short b = quad.rgbBlue;
return RGB16(r>>3, g>>3, b>>3);
}
/*
* CalcBannerCRC
*/
unsigned short CalcBannerCRC(Banner &banner)
{
return CalcCrc16((unsigned char *)&banner + 32, 0x840 - 32);
}
/*
* IconFromBMP
*/
void IconFromBMP()
{
CRaster bmp;
int rval = bmp.LoadBMP(bannerfilename);
if (rval < 0) exit(1);
if (bmp.width != 32 || bmp.height != 32) {
fprintf(stderr, "Image should be 32 x 32.\n");
exit(1);
}
Banner banner;
memset(&banner, 0, sizeof(banner));
banner.version = 1;
// tile data (4 bit / tile, 4x4 total tiles)
// 32 bytes per tile (in 4 bit mode)
for (int row=0; row<4; row++)
{
for (int col=0; col<4; col++)
{
for (int y=0; y<8; y++)
{
for (int x=0; x<8; x+=2)
{
unsigned char b0 = bmp[row*8 + y][col*8 + x + 0];
unsigned char b1 = bmp[row*8 + y][col*8 + x + 1];
banner.tile_data[row][col][y][x/2] = (b1 << 4) | b0;
}
}
}
}
// palette
for (int i = 0; i < 16; i++)
{
banner.palette[i] = RGBQuadToRGB16(bmp.palette[i]);
}
// put title
for (int i=0; bannertext[i]; i++)
{
char c = bannertext[i];
if (c == ';') c = 0x0A;
for (int l=0; l<6; l++)
{
banner.title[l][i] = c;
}
}
// calculate CRC
banner.crc = CalcBannerCRC(banner);
fwrite(&banner, 1, sizeof(banner), fNDS);
}
|
