# RZA1HBitmapConverter #### Description This document provides a complete list of bitmap formats supported by the RZA1H Target. These formats define how pixel color and alpha data are stored in memory. The RZA1H extended bitmap formats support **alpha-only**, **RGB**, **ARGB**, and **JPEG** **compressed images** formats to address different memory, performance, and visual quality requirements. These bitmap converters are supported only on the target. Windows simulation uses the default bitmap converter. ##### Alpha Only Formats Alpha formats (A1/A4/A8) are primarily used for masking and blending operations.
**Serial No.** **Format****Description**
1
RZA1HExtendedBitmapFormatA1
1-bit alpha mask.
2
RZA1HExtendedBitmapFormatA4
4-bit alpha channel.
3
RZA1HExtendedBitmapFormatA8
8-bit alpha channel.
##### RGB/ARGB Formats RGB/ARGB formats balance memory usage and visual quality depending on color depth and transparency needs.
**Serial No.** **Format****Description**
1
RZA1HExtendedBitmapFormatRGB565
16-bit RGB (5-6-5), no alpha.
2
RZA1HExtendedBitmapFormatARGB8888
32-bit ARGB, 8 bits per channel.
3
RZA1HExtendedBitmapFormatARGB1555
16-bit ARGB with 1-bit alpha.
4
RZA1HExtendedBitmapFormatARGB4444
16-bit ARGB, 4 bits per channel.
5
RZA1HExtendedBitmapFormatXRGB8888
32-bit RGB, unused alpha byte.
6
RZA1HExtendedBitmapFormatR8G8B8A8
32-bit RGBA, 8 bits per channel.
##### JPEG Compressed Image Format JPEG format enables efficient storage of large images with reduced memory requirements.
**Serial No.** **Format****Description**
1
RZA1HExtendedBitmapFormatJpg
JPEG compressed image format.