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astcrt
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ASTC encoder with real-time performance.
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// repository documentation
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astcrt
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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 References ---------- 1. [Real-Time Adaptive Scalable Texture Compression for the Web](http://studentarbeten.chalmers.se/publication/234933-real-time-adaptive-scalable-texture-compression-for-the-web) 2. [Adaptive Scalable Texture Compression](https://en.wikipedia.org/wiki/Adaptive_Scalable_Texture_Compression) 3. [Reference Encoder](https://github.com/ARM-software/astc-encoder)
