Various Device Specific Content
RT117XBitmapConverter
Description
This document provides a complete list of bitmap formats supported by the RT117X target.
These formats define how pixel color and alpha data are stored in memory. The RT117X extended bitmap formats support alpha-only, RGB, and ARGB image formats, enabling a balance between memory usage, performance, and visual quality.
These bitmap converters are supported only on the target. Windows simulation uses the default bitmap converter.
Alpha-Only Formats
Formats that store only transparency information, typically used for masks and blending.
| Serial No. | Format | Description |
| 1 | RT117XExtendedBitmapFormatA8 | 8-bit alpha-only format. |
RGB Color Formats
Formats that store color information without an alpha channel, optimized for memory efficiency.
| Serial No. | Format | Description |
| 1 | RT117XExtendedBitmapFormatRGB565 | 16-bit RGB format (5-6-5). |
| 2 | RT117XExtendedBitmapFormatXRGB8888 | 32-bit color with unused alpha channel (RGB only). |
ARGB Color Formats
Formats that store color information along with an alpha channel for transparency.
| Serial No. | Format | Description |
| 1 | RT117XExtendedBitmapFormatARGB8888 | 32-bit color with 8 bits per channel including alpha. |
| 2 | RT117XExtendedBitmapFormatARGB1555 | 16-bit color with 1-bit alpha and 5 bits per RGB channel. |
| 3 | RT117XExtendedBitmapFormatARGB4444 | 16-bit color with 4 bits per channel including alpha. |