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Author SHA1 Message Date
Rich Geldreich
4c44f02b28 Updating readme 2019-05-10 16:16:04 -07:00
Rich Geldreich
fa43048152 Updating readme 2019-05-10 16:13:57 -07:00
Rich Geldreich
19f24ccd54 Updating readme 2019-05-10 16:12:59 -07:00
Rich Geldreich
62abbad7ca Update README.md 2019-05-10 12:01:54 -07:00
Rich Geldreich
7ef84df1b7 Update README.md 2019-05-10 11:53:57 -07:00
Rich Geldreich
f7472fca9d Update README.md 2019-05-10 11:50:09 -07:00
Rich Geldreich
c4a7fe8da8 Update README.md 2019-05-10 11:47:39 -07:00
Rich Geldreich
3041642dae Adding format descriptions 2019-05-10 11:46:49 -07:00
Rich Geldreich
86821ba464 Update readme 2019-05-10 11:30:04 -07:00
Rich Geldreich
2d1a054f34 Update readme 2019-05-10 11:25:27 -07:00
Rich Geldreich
2537fe452f Update readme 2019-05-10 11:20:01 -07:00
Rich Geldreich
878f523522 Adding check to make sure codelength Huffman table was actually created successfully. 2019-05-09 22:14:23 -07:00
Rich Geldreich
ce9aeb9cc8 Refining the last Huffman fix found through fuzz testing 2019-05-09 22:00:59 -07:00
Rich Geldreich
6781292b3c Rebuilding transcoder 2019-05-09 21:51:55 -07:00
Rich Geldreich
9af44e629f Another fuzz testing fix 2019-05-09 21:49:07 -07:00
Rich Geldreich
8c9d814bb9 Rebuilt transcoder 2019-05-09 20:47:31 -07:00
Rich Geldreich
6da5bf05a6 Another bugfix found during fuzz testing 2019-05-09 20:40:41 -07:00
Rich Geldreich
93301087d3 Update README.md 2019-05-09 19:06:23 -07:00
Rich Geldreich
71249d2f98 Update README.md 2019-05-09 18:56:29 -07:00
Rich Geldreich
b0595d33ec Update README.md 2019-05-09 18:52:23 -07:00
Rich Geldreich
3185a20455 Updating readme 2019-05-09 18:52:16 -07:00
Rich Geldreich
c1a340e592 Updating readme 2019-05-09 18:43:35 -07:00
Rich Geldreich
f0be63d760 Rebuilt transcoder 2019-05-09 18:14:56 -07:00
Rich Geldreich
f83ee300a3 Adding more header checks 2019-05-09 18:09:47 -07:00
Rich Geldreich
85f4651def Fixing mipmap bug introduced from a fuzz test fix 2019-05-09 17:57:14 -07:00
Rich Geldreich
3347b17393 Another fuzz testing fix 2019-05-09 15:05:12 -07:00
Rich Geldreich
78e22234bd More transcoder fixes found during fuzz testing (I disabled all header/data CRC checking by setting BASISU_NO_HEADER_OR_DATA_CRC16_CHECKS to 1). 2019-05-09 14:43:13 -07:00
Rich Geldreich
d7b22fc404 Adding -fuzz_testing command line option, which disables the file data CRC16 check used by the -validate command. To fuzz testing using zzuf on Linux: 
zzuf -d -c -s 1000000:2000000 ./basisu -validate -fuzz_testing kodim23.basis
 2019-05-09 12:43:59 -07:00
Rich Geldreich
c7e14a97fa - Fixing minor block artifacts on pure 2 color B&W blocks when transcoding to BC1/BC7. This was caused by the ETC1S blocks using extreme ETC1S settings: codetable 7 (the one with the largest intensity deltas), using blocks with selectors that took up the full range (0-3), but the blocks only actually used the two outlier colors (0 and 3 only). The ETC1S->BC1/BC7 table based format conversion system doesn't realize that only the outlie colors were going to be used (i.e. not all 4 colors, just the outer 2), and so the quality of the transcoded block suffered because pure black could not be mapped. In BC7 mode, we now switch to pure BCT (block truncation coding) for any blocks with <= 2 unique colors, independent of their selectors. 
- Adding -csv_file option, to generate .csv files for mass benchmarking/testing
- Adding -no_ktx option, to avoid writing large .KTX files while unpacking
- Fixing printf() format issue when one of the -multifile options wasn't correct
Rebuilt compiled javascript transcoder
 2019-05-09 10:44:38 -07:00
Rich Geldreich
d699c819f7 Moving g_hamming_dist[] array from transcoder to encoder (it's never used by the transcoder). 
Adding remarks to basisu_file_header.h
 2019-05-08 20:01:35 -07:00
Rich Geldreich
d2f1594efb Removing old test code 2019-05-07 17:02:06 -07:00
Rich Geldreich
8d5a3ab6c4 updating readme 2019-05-07 15:58:47 -07:00
Rich Geldreich
f304913f47 updating readme 2019-05-07 15:57:25 -07:00
Rich Geldreich
130eb9f115 Major compression performance/quality improvements, for a 15-35% or so decrease in file size for the same Y PSNR/SSIM. The basis file format has changed due to these optimizations. 
Increasing the max codebook size to 16K vs. 8K, for a major increase in the max achievable quality.
Adding exception catching to command line tool.
Enabling debug iterators on MSVC.
Refining command line options, adding "-individual" flag to create multiple .basis files (vs. a texture array).
Changing default colorspace to sRGB, because that's probably the best default. -linear disables this and uses linear colorspace metrics.
PNG reader in 32-bit builds checks the size of the file before loading to avoid out of memory exceptions.
 2019-05-07 15:52:54 -07:00
Rich Geldreich
7599dcd7b5 new file 2019-05-07 15:52:53 -07:00
Rich Geldreich
2d751264eb Update README.md 2019-05-02 16:19:16 -07:00
Rich Geldreich
d0d34b9872 Fixing help text 2019-05-02 16:14:57 -07:00
Rich Geldreich
33996b1a5f Important: Changing the Basis file version, so any existing files will need to be recompressed! 
Adding new fields to the basis header: texture type and framerate. Texture type may be 2D, 2D array, video, volume, or cubemap array. The compressor makes sure that anything other than pure 2D follows certain constraints (cubemap arrays must have a multiple of 6 input images, videos/texture array images all must have the same resolution/# of mipmaps, etc.)
When unpacking cubemaps, the -unpack command now writes cubemap .KTX files which various tools like PVRTexTool support.
 2019-05-02 16:09:11 -07:00
Rich Geldreich
c540728ed1 new file 2019-05-02 16:06:33 -07:00
Rich Geldreich
5cbfebaef5 new file 2019-05-02 16:06:21 -07:00
Rich Geldreich
7cdf6fc0be Removing some unused/old code from transcoder 2019-05-01 20:54:22 -07:00
Rich Geldreich
afcfcf262d Update README.md 2019-05-01 15:41:55 -07:00
Rich Geldreich
6529b2aa06 Update README.md 2019-05-01 15:40:09 -07:00
Rich Geldreich
7dce9afb67 Update README.md 2019-05-01 12:13:57 -07:00
Rich Geldreich
59e3b45bfb Another readme update 2019-05-01 12:12:13 -07:00
Rich Geldreich
9d03fc1382 Update README.md 2019-05-01 12:07:05 -07:00
Rich Geldreich
27bd6268a9 Adding special thanks to readme 2019-05-01 12:00:48 -07:00
Rich Geldreich
4bf397296c Updating readme 2019-05-01 10:31:48 -07:00
Rich Geldreich
f6883572e3 Update README.md 2019-04-30 22:30:30 -07:00
Rich Geldreich
324fe2952b Updating readme 2019-04-30 22:29:03 -07:00