# fabgl

**Repository Path**: bitplay/fabgl

## Basic Information

- **Project Name**: fabgl
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: GPL-3.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-03-15
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# FabGL
### Display Controller, PS/2 Mouse and Keyboard Controller, Graphics Library, Sound Engine, Graphical User Interface (GUI), Game Engine and ANSI/VT Terminal for the **ESP32**

**[Please look here for full API documentation](http://www.fabglib.org)**

If you would like to **support FabGL's development**, please see the [**Donations page**][Donations].
You can also support me getting my own [development board](https://www.tindie.com/products/fabgl/fabgl-development-board/).


This library works with ESP32 revision 1 or upper. See [**Compatible Boards**][Boards].

FabGL is mainly a Graphics Library for ESP32. It implements several display drivers (for direct VGA output and for I2C and SPI LCD drivers).
FabGL can also get input from a PS/2 Keyboard and a Mouse. FabGL implements also: an Audio Engine, a Graphical User Interface (GUI), a Game Engine and an ANSI/VT Terminal.

This library works with ESP32 revision 1 and upper.

VGA output requires a digital to analog converter (DAC): it can be done by three 270 Ohm resistors to have 8 colors, or by 6 resistors to have 64 colors.

There are several fixed and variable width fonts embedded.

Unlimited number of sprites are supported. However big sprites and a large amount of them reduces the frame rate and could generate flickering.

When there is enough memory (on low resolutions like 320x200), it is possible to allocate two screen buffers, so to implement double buffering.
In this case primitives are always drawn on the back buffer.

Except for double buffering or when explicitly disabled, all drawings are performed on vertical retracing (using VGA driver), so no flickering is visible.
If the queue of primitives to draw is not processed before the vertical retracing ends, then it is interrupted and continued at next retracing.

There is a graphical user interface (GUI) with overlapping windows and mouse handling and a lot of widgets (buttons, editboxes, checkboxes, comboboxes, listboxes, etc..).

Finally, there is a sound engine, with multiple channels mixed to a mono output. Each channel can generate sine waveforms, square, etc... or custom sampled data.



### Installation Tutorial (click for video):

[![Everything Is AWESOME](https://img.youtube.com/vi/8OTaPQlSTas/hqdefault.jpg)](https://www.youtube.com/watch?v=8OTaPQlSTas "")

### Space Invaders Example (click for video):

[![Everything Is AWESOME](https://img.youtube.com/vi/LL8J7tjxeXA/hqdefault.jpg)](https://www.youtube.com/watch?v=LL8J7tjxeXA "")

### Graphical User Interface - GUI (click for video):

[![Everything Is AWESOME](https://img.youtube.com/vi/84ytGdiOih0/hqdefault.jpg)](https://www.youtube.com/watch?v=84ytGdiOih0 "")

### Sound Engine (click for video):

[![Everything Is AWESOME](https://img.youtube.com/vi/RQtKFgU7OYI/hqdefault.jpg)](https://www.youtube.com/watch?v=RQtKFgU7OYI "")

### Altair 8800 emulator - CP/M text games (click for video):

[![Everything Is AWESOME](https://img.youtube.com/vi/y0opVifEyS8/hqdefault.jpg)](https://www.youtube.com/watch?v=y0opVifEyS8 "")

### Commodore VIC20 emulator (click for video):

[![Everything Is AWESOME](https://img.youtube.com/vi/ZW427HVWYys/hqdefault.jpg)](https://www.youtube.com/watch?v=ZW427HVWYys "")

### Simple Terminal Out Example (click for video):

[![Everything Is AWESOME](https://img.youtube.com/vi/AmXN0SIRqqU/hqdefault.jpg)](https://www.youtube.com/watch?v=AmXN0SIRqqU "")

### Network Terminal Example (click for video):

[![Everything Is AWESOME](https://img.youtube.com/vi/n5c27-y5tm4/hqdefault.jpg)](https://www.youtube.com/watch?v=n5c27-y5tm4 "")

### Modeline Studio Example (click for video):

[![Everything Is AWESOME](https://img.youtube.com/vi/Urp0rPukjzE/hqdefault.jpg)](https://www.youtube.com/watch?v=Urp0rPukjzE "")

### Loopback Terminal Example (click for video):

[![Everything Is AWESOME](https://img.youtube.com/vi/hQhU5hgWdcU/hqdefault.jpg)](https://www.youtube.com/watch?v=hQhU5hgWdcU "")

### Double Buffering Example (click for video):

[![Everything Is AWESOME](https://img.youtube.com/vi/TRQcIiWQCJw/hqdefault.jpg)](https://www.youtube.com/watch?v=TRQcIiWQCJw "")

### Collision Detection Example (click for video):

[![Everything Is AWESOME](https://img.youtube.com/vi/q3OPSq4HhDE/hqdefault.jpg)](https://www.youtube.com/watch?v=q3OPSq4HhDE "")




[Donations]: https://github.com/fdivitto/FabGL/wiki/Donations
[Boards]: https://github.com/fdivitto/FabGL/wiki/Boards