Rgb2Hires/Readme.md

# Rgb2Hires

This repository contains three "PC" projects:
* **libRgb2Hires**: a library to convert RGB image to the Apple II's HIRES format
* **Picture**: a program to convert a RGB png to a binary or an ASM excerpt, that can be loaded to the HIRES memory pages of an Apple II.
  * Source image must be 140x192. Pixels are anamorphic: they will be displayed twice wider than tall.
  * Source image must contains six colors : BLACK, WHITE, ORANGE, GREEN, BLUE and PURPLE. The color may be approximation of the Apple II 6 colors. Please refer to the provided pic.
* **Tile**: given a RGB png tile sheet that satisfies the same requirements as above, it extracts a 14x16 tile and converts it to ASM data. This data **is not interleaved**.

And one Apple II project:
* **Loader**: a program that will load and display a picture generated by the *Picture* program. A bash scripts is provided as an exemple to load the picture and the loader on an image disk. [AppleCommander](https://applecommander.github.io/) is required to do so. Once in ProDOS, just type *-DISPLAY*.

__Note:__ For more information about the "Hires" format and its limitations, you can refer to my [website](https://www.xtof.info/hires-graphics-apple-ii.html).


## Windows / Linux projects (libHires, Picture, Tile)
### Dependencies

* Magick++, from ImageMagick 6
    * On Windows
      * Download ImageMagick 6 from the [official website](https://legacy.imagemagick.org/script/install-source.php)
      * Compile it in *Dynamic Multithreaded*
      * Provide an environment variable called *MAGICK_HOME* and pointing to the root ImageMagick folder.
      * Copy *ImageMagick-config* from the *script/* folder to *MAGICK_HOME*
    * On Linux, install libmagick++-dev for version 6
	  > sudo apt install libmagick++-6.q16-dev

### How to build

* **Linux** a CMakeList is provided:
  > mkdir build && cd build

  > cmake ..

  > cmake --build . --config release
  
* **Windows** a VisualStudio solution is provided

## Apple II project (Loader)

### Dependencies
* [CC65](https://cc65.github.io/cc65/)
    * The crosscompiler suit. Please provide an environment variable, *CC65_HOME* pointing to your CC65 folder.
	
### Build

  > make

## Test

A correct source image, *test.png*, is provided as an example. Convert it using Picture, then copy it on a dsk image along with the Apple II loader. You can use or refer to the provided script in the *Loader_Apple2* folder.