VGA display driver library for RP2040 pico-sdk
based on the PIO Assembly VGA Driver for RP2040 by V. Hunter Adams

Add the pico-vgaDisplay subdirectory to the CMakeLists.txt of your project and add vga in target_link_libraries

Include vga.h in your source file. The VGA display is initialized by calling VGA_initDisplay(uint vsync_pin, uint hsync_pin, uint r_pin);. This also sets the used pins Uncomment #define VGA_BGR 1 if you want to use the display in BGR mode instead of RGB.

Pixels are written to the display with the VGA_writePixel(int x, int y, char color); function. There are 8 available colours (red, green, blue, cyan, magenta, yellow, black and white).

The screen can be filled with a single colour using VGA_fillScreen(uint16_t color);

The library also includes the dma_memset(void *dest, uint8_t val, size_t num); and dma_memcpy(void *dest, void *src, size_t num); functions. They work like the memset and memcpy, except they use the DMA hardware of the RP2040 to copy data and are much faster.

This package provides a graphics library, based on Adafruit-GFX-Library. You can use it by including gfx.h in your source file. It supports drawing basic shapes, characters and using custom fonts.

GFX_drawPixel(int16_t x, int16_t y, uint16_t color); draws a single pixel

GFX_drawChar(int16_t x, int16_t y, unsigned char c, uint16_t color, uint16_t bg, uint8_t size_x, uint8_t size_y); puts a single character on screen
GFX_write(uint8_t c); writes a character to the screen, handling the cursor position and text wrapping automatically
GFX_setCursor(int16_t x, int16_t y); places the text cursor at the specified coordinates
GFX_setTextColor(uint16_t color); sets the text color
GFX_setTextBack(uint16_t color); sets the text background color
GFX_setFont(const GFXfont *f); sets the used font, using the same format as Adafruit-GFX-Library
GFX_printf prints formatted text

GFX_fillScreen(uint16_t color); fills the screen with a specified color
GFX_setClearColor(uint16_t color); sets the color the screen should be cleared with
GFX_clearScreen(); clears the screen, filling it with the color specified using the function above

GFX_drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color); draws a line from (x0,y0) to (x1,y1)
GFX_drawFastHLine(int16_t x, int16_t y, int16_t l, uint16_t color); draws a horizontal line
GFX_drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color); draws a vertical line

GFX_drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color); draws a rectangle
GFX_drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color) draws a circle
GFX_fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color); draws a filled rectangle
GFX_fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color); draws a filled circle