Commit Graph

12 Commits (d019cd7080144a7881f49919b426e8be8c497780)

Author SHA1 Message Date
castano d019cd7080 Merge changes from the witness. 10 years ago
nathaniel.reed@gmail.com ab316deeaa Add BC7 support. It's incredibly slow - ~60 seconds to compress a 512x512 image, on a Core i7 - but it works.
- Added AVPCL compressor to projects and got it building with VC9 and VC10.
- Removed unused command line interface & file read/write code from AVPCL.
- Convert AVPCL to use NV vector math lib, asserts, etc.
- Convert AVPCL to use double instead of float.
- Added 4x4 symmetric eigensolver, for AVPCL; it's based on the existing 3x3 one, but I had to rewrite the Householder reduction stage.  As with ZOH, using the eigensolver (instead of SVD) gives a ~25% speedup without significantly affecting RMSE.
- Encapsulate ZOH and AVPCL stuff into their own namespaces to keep everything separate.
- Added some missing vector operators to the nvmath lib.
11 years ago
nathaniel.reed@gmail.com 474239c784 Add BC6 support to nvtt lib and utils.
- Use 3x3 eigensolver for initial fit in ZOH.  Slightly better perf and RMSE than power method.
- Remove use of double precision in ZOH - speeds up by 12%.
- Fixed RGBM encoding that was broken for HDR images.
- Use gamma-2.0 space for RGBM for HDR images (improves precision in darks).
- Use UNORM instead of TYPELESS formats when saving a DX10 .dds file.  The TYPELESS formats break most viewers.
- Cleaned up warnings in ZOH code.
- Command-line utils will warn if you give them an unrecognized parameter.
- Added VS2010 profiling results.
11 years ago
castano 3b4fcd0369 Merge changes from The Witness. 12 years ago
castano 94401919b8 Add some inline files to reduce amount of code parsed. 13 years ago
castano 528b93ab14 Replace tabs with spaces. 14 years ago
castano 39c291e2a6 Fix build. 14 years ago
castano 5bb6a54f61 Fix mingw errors/warnings. 14 years ago
castano c8bf853ba4 More cleanup. 14 years ago
castano 8e074b2e28 Remove executable properties. Add cmake file. 14 years ago
castano 757e372726 Integrate bc6 compressor into nvtt. 14 years ago
castano fd6b8449bf Add bc6 and bc7 compressors from nvidia. 14 years ago