FabGL

ESP32 Display Controller (VGA, Color NTSC/PAL Composite, I2C and SPI displays), PS/2 Mouse and Keyboard Controller, Graphics Library, Sound Engine, Graphical User Interface (GUI), Game/Emulation Engine and ANSI/VT Terminal

Please look here for full API documentation

This fork is for modifications of AnsiTerminal. All original ESC-code functionality is maintained.

• Changed VGA8x8 font to PETSCII font. (updated 1/21/23 to fix { } _ characters.)
• Added ESC_#{RESOLUTION}$ for resolution selection.
• Added ESC_#{FONT}$ for font selection.
• Added ESC_#APPLYSETTINGS$ to switch font/resoltion.
• Added 320x200x64 resolution to option menu.
• Altered the boot greeting to fit cleanly in all resolutions.

FabGL Specific ESC-codes: http://www.fabglib.org/special_term_escapes.html

Resolution Selection Notes:

The following resolution settings are avaible by ESC code: (ESC "#{RESOLUTION}$" : ESC "#APPLYSETTINGS$")

• 1280x768x2
• 1024x720x4
• 800x600x8
• 720x520x16
• 640x480@73x16
• 640x480@60x16
• 640x350x16
• 512x384x64
• 400x300x64
• 320x200x64

Usage Example:

10 PRINT CHR$(27)+"_#320x200x64$" 

20 PRINT CHR$(27)+"_#APPLYSETTINGS$"

It is a good idea to apply some type of delay for the program continues to allow the monitor to catch up.

Font Selection Notes:

The following font settings are are avaible by ESC code: (ESC "#{FONT}$" : ESC "#APPLYSETTINGS$")

• VGA 4x6
• VGA 5x7
• VGA 5x8
• VGA 6x8
• VGA 6x9
• VGA 6x10
• VGA 6x12
• VGA 6x13
• VGA 7x13
• VGA 7x14
• VGA 8x8
• VGA 8x9
• VGA 8x13
• VGA 8x14
• VGA 8x16
• VGA 8x19
• VGA 9x15
• VGA 9x18
• VGA 10x20
• BigSerif 8x14
• BigSerif 8x16
• Block 8x14
• Broadway 8x14
• Computer 8x14
• Courier 8x14
• LCD 8x14
• Old English 8x16
• Sans Serif 8x14
• Sans Serif 8x16
• Slant 8x14
• Wiggly 8x16

Usage Example:

10 PRINT CHR$(27)+"_#VGA 8x8$" 

20 PRINT CHR$(27)+"_#APPLYSETTINGS$"

It is a good idea to apply some type of delay for the program continues to allow the monitor to catch up.

Misc Notes:

If using resolution and font settings together, only a single _#APPLYSETTINGS$ is required.

  
Usage Example:
  
10 PRINT CHR$(27)+"_#VGA 8x8$" 

20 PRINT CHR$(27)+"_#320x200x64$" 

30 PRINT CHR$(27)+"_#APPLYSETTINGS$"  

Again, a small delay in the code will allow the monitor to catch up when these settings are applied.

Additional:
In 320x200x64 mode, the GUI menu does not fit the screen. You can however select a new resolution and press F10 to save/exit.

Additional:
The original "VGA 8x8" font has been altered. A preview of the new font can be seen on this link:
https://github.com/eightbitswide/FabGl_font_8x8_replacement/blob/main/petscii_8x8_font_sample.jpg

Discussion on the changes being made are on:

https://groups.google.com/g/programming-on-cpm
https://groups.google.com/g/altair-duino