astcrt
This repository contains the code written for my thesis: Real-Time Adaptive
Scalable Texture Compression for the Web[1]. It contains the program astcrt,
which compress input images into ASTC[2] files.
Building
To build run ./build/configure && ninja -C out_clang_debug.
Dependencies:
- Bash
- Ninja
- Clang (for debug builds)
- GCC (for release builds)
- GCC with ARM cross compiler (for arm builds)
Running
The astcrt program encodes an TGA file using the ASTC format. The program
takes two arguments: input TGA file path and output ASTC file path. The TGA
file must be uncompressed 32-bit BGRA without a color map. The width and height
of the input file must also be a multiple of 4. Prepare the image with an image
manipulation program.
Decoding
The reference implementation by ARM[3] can be used for decoding.
Run it with the following commands:
astcrt original.tga encoded.astc
astcenc -d encoded.astc decoded.tga
astcenc -compare original.tga decode.tga -showpsnr