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44 Commits

Author SHA1 Message Date
Dominic Szablewski b1b42d14e6 Compute index_pos%64 only once for a 5% performance improvement. 2021-12-19 20:12:50 +01:00
Dominic Szablewski 07fd6c6315 Implement color index as fifo, using a hash table for fast lookup 2021-12-19 15:05:10 +01:00
Ozkan Sezer 4ca3d3ae42 minor fix for sign-compare warnings. 2021-12-17 01:12:20 +03:00
Dominic Szablewski 3a62cabad2 Change padding bytes to a unique stream-end marker; #89 2021-12-16 20:50:19 +01:00
Dominic Szablewski bf6951036d Fix check for valid colorspace 2021-12-16 20:13:52 +01:00
Dominic Szablewski 2f255c7aff Enforce a limit of 400 million pixels, 2GB file size 2021-12-16 20:12:27 +01:00
Dominic Szablewski ae07396158 Avoid UTF-8 in comments... again. 2021-12-14 21:34:33 +01:00
Dominic Szablewski 0112e3d555 Whitespace, cosmetics 2021-12-14 20:54:37 +01:00
Dominic Szablewski 873cba791d Merge branch 'schar' 2021-12-13 17:25:55 +01:00
Dominic Szablewski 3973c549dc Remove single line comments to conform to c89 -pedantic 2021-12-13 17:23:04 +01:00
Dominic Szablewski 5983658ad4 Whitespace, wording 2021-12-13 17:16:22 +01:00
Ozkan Sezer 2aaba8da96 make qoi.h build using c89 compilers. 
also add a QOI_ZEROARR macro, wrapping around memset by default.
 2021-12-13 15:56:56 +03:00
Xavier-Frédéric Moulet 99fa97792f Revert "Zero-initialize previous pixel color" 
This reverts commit 075ab8fe42.
Closes #30
 2021-12-13 11:18:41 +01:00
Ozkan Sezer 8c77fad340 change char local vars to signed char 
this accomodates toolchains where char type is unsigned by default.
 2021-12-11 21:03:37 +03:00
Dominic Szablewski c2edcd3d7a Cosmetics 2021-12-11 12:54:01 +01:00
Dominic Szablewski 0ad304d761 Be more specific with the documentation of the file format 2021-12-10 21:31:28 +01:00
Dominic Szablewski 075ab8fe42 Zero-initialize previous pixel color 2021-12-10 20:09:52 +01:00
Dominic Szablewski 2103168519 Minor encoding throughput improvement 2021-12-08 15:45:18 +01:00
Dominic Szablewski 6a73cc65c5 Wording, whitespace 2021-12-08 15:45:10 +01:00
Dominic Szablewski 92f7ebd3f8 Fix qoi_desc colorspace check 2021-12-08 15:30:56 +01:00
Dominic Szablewski 6c83cf2e0c Increase padding to 8 zero-bytes 2021-12-08 15:29:46 +01:00
Dominic Szablewski 947941fbd0 Change colorspace header to an enum to avoid confusion 2021-12-08 14:14:51 +01:00
Dominic Szablewski d6b1ec673a Add alpha channel to QOI_HASH 2021-12-08 11:30:58 +01:00
Dominic Szablewski eb29269432 Fix typo in documentation 2021-12-08 11:25:24 +01:00
Dominic Szablewski 28954f7a9a Remove QOI_DIFF_16 and QOI_DIFF_24; better tagging of remaining ops; better hash function 2021-12-06 21:23:13 +01:00
Dominic Szablewski cbb62ea555 Remove QOI_RUN_16, add new QOI_GDIFF_16 op 2021-11-30 22:05:03 +01:00
Dominic Szablewski 94974653c1 Lock output file before writing; close #18 2021-11-28 17:59:51 +01:00
Dominic Szablewski 9dd60534e4 Use local var for channels to speed up encoding 2021-11-28 17:36:47 +01:00
Dominic Szablewski 80356a5aaa Improve documentation, whitespace, wording 2021-11-28 17:36:05 +01:00
Dominic Szablewski f0a38c19e5
Merge pull request #44 from Samyak2/samyak-typo-fix-1 
Fix a typo: "user" -> "use"
 2021-11-28 12:32:14 +01:00
Samyak S Sarnayak 8ebd4e7b6d
Fix a typo: "user" -> "use" 2021-11-28 16:18:55 +05:30
Felix "xq" Queißner ef9ce10bc1 Adds wraparound specification 2021-11-28 01:17:24 +01:00
Felix "xq" Queißner 7053672d3a Starts to improve the documentation. 2021-11-28 01:08:52 +01:00
Dominic Szablewski be8d23c574
Merge pull request #31 from vec4f/bug/qoi_read/fclose 
Close file on allocation failure in `qoi_read()`
 2021-11-27 21:04:16 +01:00
Dominic Szablewski 5506399e0d Fix HEADER_SIZE for the new header 2021-11-27 18:41:02 +01:00
Dominic Szablewski ff542c2ae6 Change the API to supply/return channel count and colorspace info 2021-11-27 18:36:17 +01:00
Dominic Szablewski 697abf6696 Align the data format with new spec #37 2021-11-27 17:23:52 +01:00
Piotr Fusik 344ba65a57 Avoid UTF-8 2021-11-26 22:51:22 +01:00
Brad Fish 7b1567cc9d Close file on allocation failure 2021-11-26 12:28:49 -08:00
Dominic Szablewski dd0b04b319 Fix #22: avoid UB when reading ints from the stream; 2021-11-26 13:22:00 +01:00
Dominic Szablewski 81b438cb56 Change header to big endian; make it independent from host byte order; close #10 2021-11-25 13:51:05 +01:00
Dominic Szablewski c03edb2f26 Fix naming of chunks in the data format documentation; close #9 2021-11-25 09:43:11 +01:00
Dominic Szablewski e969322d00 Don't run past the padding of the byte stream when decoding; re #4 2021-11-24 22:09:08 +01:00
Dominic Szablewski 19dc63cf17 Initial 2021-11-24 11:07:17 +01:00