Icon.bin: Difference between revisions
Some fixes |
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[[Image:icon_5.gif]] | [[Image:icon_5.gif]] | ||
These are converted by a tool | These are converted by a tool blasty wrote. Icon files were supplied by loopy. | ||
== Basic File Structure == | == Basic File Structure == | ||
| Line 17: | Line 17: | ||
|- | |- | ||
| 0x0000 | | 0x0000 | ||
| | | 1 | ||
| | | Number of titles (5+N) | ||
|- | |||
| 0x0001 | |||
| 1 | |||
| Animated (1=contains animated icon at 0x1240) | |||
|- | |- | ||
| 0x0002 | | 0x0002 | ||
| 2*4 | | 2*4 | ||
| 4 CRC checksums ( | | 4 CRC checksums (polynomial 0xA001) | ||
|- | |- | ||
| 0x000A | | 0x000A | ||
| Line 37: | Line 41: | ||
|- | |- | ||
| 0x0240 | | 0x0240 | ||
| 256* | | 256*16 | ||
| Application | | Application Titles, wide chars | ||
|- | |- | ||
| 0x1240 | | 0x1240 | ||
| Line 56: | Line 56: | ||
| Animation Sequence | | Animation Sequence | ||
|} | |} | ||
Languages (in correct order) are: Japanese, English, French, German, Italian, Spanish, | Languages (in correct order) are: Japanese, English, French, German, Italian, Spanish, ?Chinese?, Korean. | ||
== Animation Sequence == | == Animation Sequence == | ||
| Line 95: | Line 95: | ||
The conversion to RGB888 is made like this (C): | The conversion to RGB888 is made like this (C): | ||
<source lang="c"> | |||
u8 r = ((color ) & 0x1f)<<3; | u8 r = ((color ) & 0x1f)<<3; | ||
u8 g = ((color >> 5) & 0x1f)<<3; | u8 g = ((color >> 5) & 0x1f)<<3; | ||
u8 b = ((color >> 10) & 0x1f)<<3; | u8 b = ((color >> 10) & 0x1f)<<3; | ||
</source> | |||
== Checksums == | == Checksums == | ||
The CRC-output is not bitwise inverted after the calculation, but it is byte-swapped to big-endian. | The CRC-output is not bitwise inverted after the calculation, but it is byte-swapped to big-endian. Polynomial used is: 0xA001, same for all. | ||
{| class="wikitable" | {| class="wikitable" | ||
Latest revision as of 19:41, 13 February 2011
These are the banners you'll see in various places in the System Menu. They have the dimension 32x32 pixels.
These are converted by a tool blasty wrote. Icon files were supplied by loopy.
Basic File Structure
| Start | Length | Description |
|---|---|---|
| 0x0000 | 1 | Number of titles (5+N) |
| 0x0001 | 1 | Animated (1=contains animated icon at 0x1240) |
| 0x0002 | 2*4 | 4 CRC checksums (polynomial 0xA001) |
| 0x000A | 22 | Padding (00's) |
| 0x0020 | 512 | Default Bitmap |
| 0x0220 | 32 | Palette for above |
| 0x0240 | 256*16 | Application Titles, wide chars |
| 0x1240 | 512*8 | 8 Bitmaps (for animation) |
| 0x2240 | 32*8 | 8 Palettes |
| 0x2340 | 128 | Animation Sequence |
Languages (in correct order) are: Japanese, English, French, German, Italian, Spanish, ?Chinese?, Korean.
Animation Sequence
The sequence is represented by 2-byte tokens, in the following format (we're now talking bits, from left to right):
| Length | Description | Mask |
|---|---|---|
| 1 | Flip Vertically | 0x8000 |
| 1 | Flip Horizontally | 0x4000 |
| 3 | Palette Index | 0x3800 |
| 3 | Bitmap Index | 0x0700 |
| 8 | Frame Duration (in frames (one frame = 1/60sec)) | 0x00FF |
Both bytes being zero indicates the end of the sequence. If the first token is zero, the non-animated default image is shown.
Bitmap Format
The bitmap is tiled 8x8 pixels (Nintendo tends to do this). Each pixel contain 4 bits of data, being the index into the palette specified by the current sequence-token.
The Palettes
Each color in the palette is in the standard 2-byte RGB5551 format (used since GBA).
The conversion to RGB888 is made like this (C):
u8 r = ((color ) & 0x1f)<<3;
u8 g = ((color >> 5) & 0x1f)<<3;
u8 b = ((color >> 10) & 0x1f)<<3;Checksums
The CRC-output is not bitwise inverted after the calculation, but it is byte-swapped to big-endian. Polynomial used is: 0xA001, same for all.
| Number | Range |
|---|---|
| 0 | 020-83F |
| 1 | 020-93F |
| 2 | 020-A3F |
| 3 | 1240-23C0 |