Traveo2BitmapConverter
Description
This document provides a complete list of bitmap formats supported by the Traveo2 Target.
The formats are grouped into categories such as Basic, Grayscale, RLE (Run length Encoding), RLA (Run-Length Adaptive), RLAD (Run-Length Adaptive Dithering), CLUT (color lookup table), JPEG, and YUV.
Below are the supported pixel formats with their corresponding type, format code, and a brief description.
These bitmap converters are supported only on the target. Windows simulation uses the default bitmap converter.
Traveo2 Bitmap Format List
1). Basic Formats
These formats represent the fundamental bitmap types supported by Traveo2, defining basic RGB and alpha channel combinations with different bit depths for color and transparency.
| Serial No | Format | Description |
|
1 |
Traveo2ExtendedBitmapFormatR6G6B6A6 |
6 bits per channel with alpha. |
|
2 |
Traveo2ExtendedBitmapFormatR6G6B6 |
6 bits per RGB channel. |
|
3 |
Traveo2ExtendedBitmapFormatR3G3B2 |
Compact 8-bit color format. |
|
4 |
Traveo2ExtendedBitmapFormatA8 |
8-bit alpha-only channel. |
|
5 |
Traveo2ExtendedBitmapFormatA4 |
4-bit alpha-only channel. |
|
6 |
Traveo2ExtendedBitmapFormatA2 |
2-bit alpha-only channel. |
|
7 |
Traveo2ExtendedBitmapFormatA1 |
1-bit alpha mask. |
2). Grayscale Formats.
These formats are used for grayscale images, representing luminance information with optional alpha channels for transparency control.
| Serial No | Format | Description |
|
1 |
Traveo2ExtendedBitmapFormatRGB8 |
8-bit grayscale RGB. |
|
2 |
Traveo2ExtendedBitmapFormatA8RGB8 |
8-bit grayscale RGB with alpha. |
|
3 |
Traveo2ExtendedBitmapFormatRGB4 |
4-bit grayscale RGB. |
|
4 |
Traveo2ExtendedBitmapFormatA4RGB4 |
4-bit grayscale RGB with alpha. |
3). RLE (Run-Length Encoded) Formats.
These formats use Run-Length Encoding (RLE) to compress bitmap data, efficiently storing repeated pixel values while supporting various RGB and alpha channel combinations.
| Serial No | Format | Description |
|
1 |
Traveo2ExtendedBitmapFormatRleR8G8B8A8 |
RLE-compressed 32-bit color (8 bits per channel). |
|
2 |
Traveo2ExtendedBitmapFormatRleR8G8B8 |
RLE-compressed 24-bit color. |
|
3 |
Traveo2ExtendedBitmapFormatRleR6G6B6A6 |
RLE-compressed 6-bit per channel format with alpha. |
|
4 |
Traveo2ExtendedBitmapFormatRleR6G6B6 |
RLE-compressed 6-bit RGB. |
|
5 |
Traveo2ExtendedBitmapFormatRleR4G4B4A4 |
RLE-compressed 16-bit RGBA. |
|
6 |
Traveo2ExtendedBitmapFormatRleR5G5B5A1 |
RLE-compressed 16-bit RGBA (5-5-5-1). |
|
7 |
Traveo2ExtendedBitmapFormatRleR5G6B5 |
RLE-compressed 16-bit RGB (5-6-5). |
|
8 |
Traveo2ExtendedBitmapFormatRleA8 |
RLE-compressed 8-bit alpha mask. |
|
9 |
Traveo2ExtendedBitmapFormatRleA4 |
RLE-compressed 4-bit alpha mask. |
|
10 |
Traveo2ExtendedBitmapFormatRleA2 |
RLE-compressed 2-bit alpha mask. |
|
11 |
Traveo2ExtendedBitmapFormatRleA1 |
RLE-compressed 1-bit alpha mask. |
4). RLE Grayscale Formats
These formats combine grayscale image representation with Run-Length Encoding (RLE) compression, reducing memory usage while maintaining luminance and optional alpha information.
| Serial No | Format | Description |
|
1 |
Traveo2ExtendedBitmapFormatRleRGB8 |
RLE-compressed 8-bit grayscale RGB. |
|
2 |
Traveo2ExtendedBitmapFormatRleA8RGB8 |
RLE-compressed grayscale with 8-bit alpha. |
|
3 |
Traveo2ExtendedBitmapFormatRleRGB4 |
RLE-compressed 4-bit grayscale RGB. |
|
4 |
Traveo2ExtendedBitmapFormatRleA4RGB4 |
RLE-compressed 4-bit grayscale with alpha. |
|
5 |
Traveo2ExtendedBitmapFormatRleRGB1 |
RLE-compressed 1-bit grayscale (monochrome). |
5). RLA (Run-Length Adaptive) Formats.
These formats use Run-Length Adaptive (RLA) compression, which dynamically adjusts compression based on pixel patterns to achieve better efficiency while preserving image quality across various color and alpha depths.
| Serial No | Format | Description |
|
1 |
Traveo2ExtendedBitmapFormatRlaR8G8B8A8 |
RLA-compressed 32-bit RGBA. |
|
2 |
Traveo2ExtendedBitmapFormatRlaR8G8B8 |
RLA-compressed 24-bit RGB. |
|
3 |
Traveo2ExtendedBitmapFormatRlaR8GB8A8 |
RLA-compressed 24-bit RGBA (8-4-4-8). |
|
4 |
Traveo2ExtendedBitmapFormatRlaR6G6B6A6 |
RLA-compressed 6-bit per channel RGBA. |
|
5 |
Traveo2ExtendedBitmapFormatRlaR6G6B6 |
RLA-compressed 6-bit RGB. |
|
6 |
Traveo2ExtendedBitmapFormatRlaR4G4B4A4 |
RLA-compressed 16-bit RGBA. |
|
7 |
Traveo2ExtendedBitmapFormatRlaR5G5B5A1 |
RLA-compressed 16-bit RGBA (5-5-5-1). |
|
8 |
Traveo2ExtendedBitmapFormatRlaR1G1B1A1 |
RLA-compressed 4-bit color with 1-bit alpha. |
|
9 |
Traveo2ExtendedBitmapFormatRlaR5G6B5 |
RLA-compressed 16-bit RGB (5-6-5). |
|
10 |
Traveo2ExtendedBitmapFormatRlaA8 |
RLA-compressed 8-bit alpha. |
|
11 |
Traveo2ExtendedBitmapFormatRlaA4 |
RLA-compressed 4-bit alpha. |
|
12 |
Traveo2ExtendedBitmapFormatRlaA2 |
RLA-compressed 2-bit alpha. |
|
13 |
Traveo2ExtendedBitmapFormatRlaA1 |
RLA-compressed 1-bit alpha. |
6). RLA Grayscale Formats
These formats apply Run-Length Adaptive (RLA) compression to grayscale images, optimizing storage while maintaining brightness and optional alpha transparency information.
| Serial No | Formats | Description |
|
1 |
Traveo2ExtendedBitmapFormatRlaRGB8 |
RLA-compressed grayscale RGB (8-bit). |
|
2 |
Traveo2ExtendedBitmapFormatRlaA8RGB8 |
RLA-compressed grayscale RGB with 8-bit alpha. |
|
3 |
Traveo2ExtendedBitmapFormatRlaRGB4 |
RLA-compressed grayscale RGB (4-bit). |
|
4 |
Traveo2ExtendedBitmapFormatRlaA4RGB4 |
RLA-compressed grayscale RGB (4-bit + alpha). |
|
5 |
Traveo2ExtendedBitmapFormatRlaRGB1 |
RLA-compressed grayscale (1-bit monochrome). |
7). RLAD (Run-Length Adaptive Dithering) Formats
These formats use Run-Length Adaptive Dithering (RLAD) compression, combining adaptive run-length encoding with dithering techniques to preserve visual quality and smooth gradients in compressed images.
| Serial No | Format | Description |
|
1 |
Traveo2ExtendedBitmapFormatRleR8G8B8A8 |
RLE-compressed 32-bit color (8 bits per channel). |
|
2 |
Traveo2ExtendedBitmapFormatRleR8G8B8 |
RLE-compressed 24-bit color. |
|
3 |
Traveo2ExtendedBitmapFormatRleR6G6B6A6 |
RLE-compressed 6-bit per channel format with alpha. |
|
4 |
Traveo2ExtendedBitmapFormatRleR6G6B6 |
RLE-compressed 6-bit RGB. |
|
5 |
Traveo2ExtendedBitmapFormatRleR4G4B4A4 |
RLE-compressed 16-bit RGBA. |
|
6 |
Traveo2ExtendedBitmapFormatRleR5G5B5A1 |
RLE-compressed 16-bit RGBA (5-5-5-1). |
|
7 |
Traveo2ExtendedBitmapFormatRleR5G6B5 |
RLE-compressed 16-bit RGB (5-6-5). |
|
8 |
Traveo2ExtendedBitmapFormatRleA8 |
RLE-compressed 8-bit alpha mask. |
|
9 |
Traveo2ExtendedBitmapFormatRleA4 |
RLE-compressed 4-bit alpha mask. |
|
10 |
Traveo2ExtendedBitmapFormatRleA2 |
RLE-compressed 2-bit alpha mask. |
|
11 |
Traveo2ExtendedBitmapFormatRleA1 |
RLE-compressed 1-bit alpha mask. |
8). RLAD Grayscale Formats
These formats apply Run-Length Adaptive Dithering (RLAD) compression to grayscale images, maintaining smooth tonal transitions and optional transparency while minimizing memory usage.
| Serial No | Format | Description |
|
1 |
Traveo2ExtendedBitmapFormatRladRGB8 |
RLAD-compressed grayscale RGB (8-bit). |
|
2 |
Traveo2ExtendedBitmapFormatRladA8RGB8 |
RLAD-compressed grayscale RGB with alpha. |
|
3 |
Traveo2ExtendedBitmapFormatRladRGB4 |
RLAD-compressed grayscale RGB (4-bit). |
|
4 |
Traveo2ExtendedBitmapFormatRladA4RGB4 |
RLAD-compressed grayscale with alpha (4-bit). |
|
5 |
Traveo2ExtendedBitmapFormatRladRGB1 |
RLAD-compressed grayscale (1-bit monochrome). |
9). CULT Masking
This format uses a Color Look-Up Table (CULT) to reference predefined color entries, enabling efficient color representation and masking with reduced memory requirements.
| Serial No | Format | Description |
| 1 | Traveo2ExtendedBitmapFormat_Clut | Uses color lookup table. |
10). JPEG Format
This format supports standard JPEG-compressed images, providing high compression efficiency for photographic content.
- To enable this format on the target, set the corresponding CMake flag in the toolchain file during CMake configuration.
- This feature is supported only on the Traveo-II 6M and 6MDDR target boards.
| Serial No | Format | Description |
| 1 | Traveo2ExtendedBitmapFormat_Jpeg | JPEG compressed image in any supported color format. For list of supported color formats, please check JPEG Bitmap Converter Documentation |
11). YUV Formats
These formats represent image data using YUV color encoding, supporting various chroma subsampling modes like 4:2:0, 4:2:2, and 4:4:4 for efficient video and image processing.
| Serial No | Format | Description |
|
1 |
Traveo2ExtendedBitmapFormat_YUV420 |
YUV planar 4:2:0 format. |
|
2 |
Traveo2ExtendedBitmapFormat_VYUY422 |
Packed YUV 4:2:2 (VYUY order). |
|
3 |
Traveo2ExtendedBitmapFormat_YVYU422 |
Packed YUV 4:2:2 (YVYU order). |
|
4 |
Traveo2ExtendedBitmapFormat_YUV444 |
YUV 4:4:4 full color format. |