Icon.bin: Difference between revisions
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These are the banners you'll see in various places in the [[System Menu]]. They have the dimension 32x32 pixels. | |||
[[Image:icon_1.gif]] | [[Image:icon_1.gif]] | ||
[[Image:icon_2.gif]] | [[Image:icon_2.gif]] | ||
[[Image:icon_3.gif]] | [[Image:icon_3.gif]] | ||
[[Image:icon_4.gif]] | |||
[[Image:icon_5.gif]] | |||
These are converted by a tool blasty wrote. Icon files were supplied by loopy. | |||
== Basic File Structure == | |||
{| class="wikitable" | |||
|- style="background-color: #ddd;" | |||
! 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): | |||
{| class="wikitable" | |||
|- style="background-color: #ddd;" | |||
! 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): | |||
<source lang="c"> | |||
u8 r = ((color ) & 0x1f)<<3; | |||
u8 g = ((color >> 5) & 0x1f)<<3; | |||
u8 b = ((color >> 10) & 0x1f)<<3; | |||
</source> | |||
== 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. | |||
{| class="wikitable" | |||
|- style="background-color: #ddd;" | |||
! Number | |||
! Range | |||
|- | |||
| 0 | |||
| 020-83F | |||
|- | |||
| 1 | |||
| 020-93F | |||
|- | |||
| 2 | |||
| 020-A3F | |||
|- | |||
| 3 | |||
| 1240-23C0 | |||
|} | |||
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 |