Difference between revisions of "Icon.bin"
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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 18:41, 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 |