# 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.

<table border="1" id="bkmrk-serial-no.-format-de" style="border-collapse: collapse; width: 100%; height: 59.5938px;"><colgroup><col style="width: 11.2038%;"></col><col style="width: 39.5675%;"></col><col style="width: 49.2287%;"></col></colgroup><tbody><tr style="height: 29.7969px;"><td class="align-center" style="height: 29.7969px;">**Serial No.**</td><td style="height: 29.7969px;">**Format**</td><td style="height: 29.7969px;">**Description**</td></tr><tr style="height: 29.7969px;"><td class="align-center" style="height: 29.7969px;">1</td><td style="height: 29.7969px;">RT117XExtendedBitmapFormatA8</td><td style="height: 29.7969px;">8-bit alpha-only format.</td></tr></tbody></table>

##### RGB Color Formats

Formats that store color information without an alpha channel, optimized for memory efficiency.

<table border="1" id="bkmrk-serial-no.-format-de-1" style="border-collapse: collapse; width: 100%; height: 89.3907px;"><colgroup><col style="width: 11.5614%;"></col><col style="width: 39.4703%;"></col><col style="width: 48.9683%;"></col></colgroup><tbody><tr style="height: 29.7969px;"><td class="align-center" style="height: 29.7969px;">**Serial No.**</td><td style="height: 29.7969px;">**Format**</td><td style="height: 29.7969px;">**Description**</td></tr><tr style="height: 29.7969px;"><td class="align-center" style="height: 29.7969px;">1</td><td style="height: 29.7969px;">RT117XExtendedBitmapFormatRGB565</td><td style="height: 29.7969px;">16-bit RGB format (5-6-5).</td></tr><tr style="height: 29.7969px;"><td class="align-center" style="height: 29.7969px;">2</td><td style="height: 29.7969px;">RT117XExtendedBitmapFormatXRGB8888</td><td style="height: 29.7969px;">32-bit color with unused alpha channel (RGB only).</td></tr></tbody></table>

##### ARGB Color Formats

Formats that store color information along with an alpha channel for transparency.

<table border="1" id="bkmrk-serial-no.-format-de-2" style="border-collapse: collapse; width: 100%;"><colgroup><col style="width: 11.5586%;"></col><col style="width: 39.2045%;"></col><col style="width: 49.2131%;"></col></colgroup><tbody><tr><td class="align-center">**Serial No.**</td><td>**Format**</td><td>**Description**</td></tr><tr><td class="align-center">1</td><td>RT117XExtendedBitmapFormatARGB8888</td><td>32-bit color with 8 bits per channel including alpha.</td></tr><tr><td class="align-center">2</td><td>RT117XExtendedBitmapFormatARGB1555</td><td>16-bit color with 1-bit alpha and 5 bits per RGB channel.</td></tr><tr><td class="align-center">3</td><td>RT117XExtendedBitmapFormatARGB4444</td><td>16-bit color with 4 bits per channel including alpha.</td></tr></tbody></table>