Rgb2Hires is a set of tools to help convert a modern RGB image (JPEG, PNG) to the HIRES format for Apple II computers, either as a binary export or an assembly listing.
* **libRgb2Hires**: a library to convert an RGB image to the Apple II's HIRES format
* **Picture**: a program to convert an RGB png to a binary or an ASM excerpt that can be loaded into the HIRES memory pages of an Apple II. An optional **live preview** can be displayed: its window will simulate an RGB monitor and will show the result, including color clashing and artifacts.
* Source image must be 140x192. Pixels are anamorphic: they will be displayed twice as wide as they are tall.
* Source image must contains six colors: BLACK, WHITE, ORANGE, GREEN, BLUE and PURPLE. The colors may be an approximation of the six Apple II colors. Please refer to the provided pic.
* **Tile**: given an RGB png tile sheet that satisfies the same requirements as above, it extracts a 14x16 tile and converts it to ASM data. The lines forming the tile data **are not interleaved** as in a HIRES framebuffer.
* **Loader**: a program that will load and display a picture generated by the *Picture* program. A bash script is provided as an example to load the picture and the loader onto 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).
The dependencies are managed by [conan.io](https://conan.io/). Please refer to [their documentation](https://docs.conan.io/en/latest/installation.html) for installation instructions.
* A correct source image, *testPicture.png*, is provided as an example. Convert it using the application *Picture*, then copy it onto a disk image along with the Apple II loader. You can use or refer to the provided script in the *Loader_Apple2* folder.
* Another source image, *testTile.png*, is provided to test that the correct tile is converted and extracted using the application *Tile*.
The live preview can help to visualise color clashing and artifacts. You can edit your file using *Photoshop* or any other application. The *Preview* window will be updated each time the file is saved.
