Pixel Compiler

A simplified compiler for the Pixel image processing DSL, built with MLIR.

What It Does

Compiles .px scripts that process BMP images using operations like:

• invert - Inverts colors
• grayscale - Converts to grayscale
• rotate - Rotates image by specified degrees

Building

./build.sh

Or manually:

mkdir build && cd build
cmake ..
make -j4

Usage

./compile.sh script.px

That's it! The compiler automatically:

1. Parses your .px file
2. Generates high-level MLIR (Pixel dialect)
3. Lowers to LLVM dialect MLIR
4. Generates LLVM IR
5. Compiles to executable

Output Files

• output_high_level.mlir - High-level Pixel dialect
• output_low_level.mlir - Low-level LLVM dialect
• output.ll - LLVM IR
• pixel_program - Ready-to-run executable

Run the generated program:

./pixel_program

Example Script

# script.px
image img1 "input" -> "output" as bmp

operations img1:
  invert
  grayscale
  rotate 90