Graphic Color Dot Matrix Driver Library for OLED-LCD display modules

C source display driver library for the SSD1339 family of display controllers

The SSD1339 family C source library is optimized for use in small embedded systems using RGB display modules with one of these OLED / LCD display controller chip types:

GUI RGB display driver library

The RGB display driver library implements the powerful and flexible high-level GUI application interface functions and features set common for RAMTEX Color Dot Matrix library packages.

Feature list

  • Display controller family features
    • Supports RGB display controllers for OLED / LCD display screen types
    • All dot matrix display screen sizes supported by the display controller. For instance, 240x320, 320x240, 128x128, etc.
    • Support for 16, 18, 24-bits per pixel RGB in hardware.
    • Portrait and landscape orientation: 0, 90, 180, 270-degree display rotation.
    • Support for both 8-bit and 16-bit parallel bus modes and serial bus modes. All the display controllers use indexed bus addressing (only one address pin used). Small connector pin count.
    • Touch Screen support
    • Support for RGB OLED display controllers: SSD1339, SSD1338, SSD0332, SSD1331, SSD1332, SSD1335, SSD1351, SSD1353
      and RGB LCD display controller: SSD1783, and equivalents.
  • Display driver C source code
    • GUI display controller driver library provided as full C source code.
    • Standard conforming C source code. Can be used with embedded processors supported by a C, C++, or EC++ standard-conforming compiler.
    • Processor and OS independent driver code. Standardized I/O functions create driver source code portability.
    • Color OLED / LCD display controller PC-simulator included for debugging of embedded GUI applications with standard PC compilers.
    • Comprehensive easy-to-read manual with examples
    • No run-time licenses.
  • Graphic symbols
    • One common function interface supports multiple symbol pixel data formats:
        -   1 bit per pixel (B&W or two-color)
        -   8, 4, 2 bits per pixel grey-level (anti-aliased)
        -   4, 2 bits per pixel RGB palette
        -   24, 16, 8 bits per pixel RGB
        -   32 bits per pixel ARGB (semi-transparent symbols)
    • Transparent symbol pixels. Symbols can use any geometric form.
    • Free user definition of special symbols.
  • Graphic drawing
    • Graphic line drawing and pixel setting.
    • Graphic Rectangle and Block drawing.
    • Graphic buffer Cut and Paste.
    • Transparent symbol pixels. Symbols can use any geometric form.
    • Rotation of text and graphic symbols
  • Fonts and Text support
    • Character and text string functions.
    • Soft-font support
    • Mono-space and Proportional fonts.
    • Support for extended codepage tables, ISO-IEC 10646, and UNICODE.
    • Support for extended character set handling. Multibyte character strings, wide-char strings.
    • Full UTF-8 string support, incl. conversion functions.
    • Support for anti-aliased fonts
    • Support for transparent text
    • Fonts can be stored as two-color (B&W) symbols to optimize memory consumption.
  • Viewports and GUI Styles
    • Viewports with scroll, auto-wrap and auto-alignment.
    • Tabs and column alignment support.
    • Selectable fonts and alignemnt styles.
    • Selectable foreground and background colors with both text and graphics. Transparent write of anti-aliased text and symbols.
    • Fast block-swapping of foreground and background colors. Ideal for block cursors in menus and progress bars.
    • Comprensive, easy-to-use function interface. The powerful feature set enable creation of any GUI style.
    • Use relative coordinate set. Create adaptable layouts. Design your owen reusable GUI functions.
  • Low processor memory consumption
    • Library is designed for use with embedded processors. Small memory footprint. No heap memory requirement.
    • Can operate directly on internal video buffer in the display controller chip. No need for a graphic video buffer in processor RAM.
    • Selectable use of direct video memory I/O, or fast delayed update via RAM buffer.
    • Full support for Virtual Fonts, icons, and pictures stored in external memory devices. An easy way to handle large fonts and graphic objects with minimum processor memory consumption.
    • Includes support for Virtual Files. Save text strings and application data together with fonts. Enable easy language update after product release.

PC mode demo

Start download of the Graphic Color LCD driver demo for Windows. (colordmo.zip = 325K bytes)
This run-time demo is a normal "embedded" GUI application using the library C source code and compiled with Microsoft Visual C/C++. The RAMTEX LCD PC simulator server is used for display controller screen output.