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76 Commits (16d9ed721161338f0f701d044fbdb0efcc600f56)

Author SHA1 Message Date
Sean Barrett 6403f319f7 tweak documentation 
stbi__ prefix on two functions that were missing it
 2014-12-21 08:30:27 -08:00
Sean Barrett e4fb737f66 Merge branch 'ppm' into working 
Conflicts:
	stb_image.h
 2014-12-21 08:23:34 -08:00
Sean Barrett 49d4d3193f fix non-progressive jpegs (had commented out a line accidentally); 
fix long-standing bug where gifs were just broken AFAICT
 2014-12-21 08:21:17 -08:00
Sean Barrett 33e24eafa0 in progress progressive stuff 2014-12-21 07:53:05 -08:00
Sean Barrett 9ad85cc8d2 tweak release docs 
tweak credits
tweak revision history
remove trailing whitespace
 2014-12-20 06:22:17 -08:00
Sean Barrett b4e526d7cf PNM cleanup 
fix a few old error messages
 2014-12-20 06:09:23 -08:00
Sean Barrett 97949493fb Merge branch 'master' of https://github.com/kennethdmiller3/stb into ppm 2014-12-20 05:49:19 -08:00
Sean Barrett ba5e333faf STBI_MALLOC etc. 
some documentation cleanup
 2014-12-20 05:46:13 -08:00
Sean Barrett bd6b78f268 finalize scalar YCbCr conversion back-ported from SSE version; 
add missing STBIDEFs to a few functions;
update documentation with full 1.49 info even though most isn't implemented yet
 2014-12-20 05:13:25 -08:00
Sean Barrett f259bf27e9 VC6: 
support using inline asm for cpuid

YCbCr:
  switch SSE code to constants that match old C;
  create C version that is same as SSE;
  tiny optimization(?) of SSE
 2014-12-19 04:39:04 -08:00
Fabian Giesen b082091bcb stb_image: GCC fix for new SIMD stuff. 2014-12-18 08:31:03 -08:00
Fabian Giesen 42bb08b10b stb_image: Add SSE2 h2v2 resampling kernel. 2014-12-18 08:11:05 -08:00
Fabian Giesen c625d24197 stb_image: First-pass stbi__sse2_available for GCC 2014-12-18 07:52:44 -08:00
Fabian Giesen aabf2c5c49 stb_image: SSE2 YCbCr->RGB kernel 2014-12-18 07:41:41 -08:00
Fabian Giesen d95f7acb32 stb_image: Remove old installable IDCT path. 2014-12-18 07:25:41 -08:00
Fabian Giesen e5db25f637 stb_image: Add SSE2 IDCT for JPEG decoder. 
Also add SSE2 detection for MSVC++. Detection on GCC will follow
later.
 2014-12-18 07:22:42 -08:00
Fabian Giesen fb2c841bb8 stb_image: Add more of the SSE2 skeleton. 2014-12-18 07:03:21 -08:00
Fabian Giesen c6a3235995 stb_image: IDCT kernel func ptr in stbi__jpeg 
I want to support SSE2 kernels that auto-detect. If implemented
using globals, this would trigger thread race checkers if stb_image
was used in multiple threads. Just make the kernels be explicitly
per-stbi__jpeg to avoid this.

(This commit is the first step in replacing existing STBI_SIMD
functionality.)
 2014-12-18 06:49:41 -08:00
Fabian Giesen 518306517c stb_image: JPEG dequant in decode_block not IDCT. 
Inside decode_block, we're still sparse, and we can use that
sparsity pattern without doing extra work to discover it.
 2014-12-18 06:31:53 -08:00
Fabian Giesen 1d5652044d stb_image: JPEG fast_ac table - decode entire AC at once. 2014-12-18 06:30:42 -08:00
Fabian Giesen a1bd1f7f1f stb_image: Faster stbi__extend_receive. 2014-12-18 06:25:42 -08:00
Ken Miller bdc918751d Merge branch 'master' of https://github.com/nothings/stb 2014-12-15 01:09:59 -06:00
Sean Barrett f547761c15 Fix assert() that should be STBI_ASSERT() 2014-12-14 18:14:14 -08:00
Sean Barrett 91255cb1cd update stb_image version & changelog 2014-12-14 02:06:33 -08:00
Sean Barrett f9e593c25c Merge branch 'optimize' of https://github.com/rygorous/stb into working 
Conflicts:
	stb_image.h

Also disable VC6 automatic precompiled headers which were enabled in some projects.
 2014-12-14 01:57:22 -08:00
Sean Barrett 8ac015c03f fix 1/2/4-bit png to filter bytes before decoding to pixels; 
rename pngsuite/part1 to pngsuite/primary;
check in pngsuite
 2014-12-14 01:43:23 -08:00
Sean Barrett 8679ce08b7 fix incorrect img_n variable for interlaced files, caused files to be totally incorrect if forcing channel count 2014-12-13 23:35:55 -08:00
Fabian Giesen 1996a019ac stb_image: Guess decoded image size before zlib decode to avoid unnecessary reallocs. 2014-12-13 19:15:38 -08:00
Fabian Giesen 3d6dccf0c4 stb_image: Make 'fast' table contain code size and value directly. 2014-12-13 18:48:37 -08:00
Fabian Giesen 007de5eb6e stb_image: Extract zhuffman_decode slow path into own function. 2014-12-13 18:18:36 -08:00
Fabian Giesen cdc230598e stb_image: Fast path for matches with dist=1 (runs) in stbi__parse_huffman_block. 2014-12-13 18:07:00 -08:00
Fabian Giesen 92b9e262b7 stb_image: Keep zout in a local var during stbi__parse_huffman_block. 2014-12-13 17:58:36 -08:00
Fabian Giesen 8188e842e2 stb_image: Add 'static' for some internal funcs, STBIDEF for external ones. 2014-12-13 17:31:51 -08:00
Fabian Giesen 61428d4526 stb_image: Trivial optimizations for filter path when img_n==out_n. 2014-12-13 17:22:57 -08:00
ocornut 1be86b37d6 Documentation 2014-09-26 00:06:30 +01:00
ocornut 50d9752612 Removing tabs and using 3-spaces indents to match local coding style 2014-09-26 00:01:45 +01:00
ocornut 09a1ab87a0 Fix for interlaced and small images + cleanup 2014-09-25 23:52:24 +01:00
ocornut 3b3e2996e7 Unpack 1/2/4 bpp into 8 bpp scanline buffer + support grayscale 1/2/4 bpp 2014-09-25 21:59:50 +01:00
ocornut f2b3ebd470 Support for 1/2/4-bit palettized PNG 2014-09-25 19:30:47 +01:00
Ken Miller 8e91cb2b7d treat vertical tab and form feed characters as whitespace 2014-09-07 00:48:48 -05:00
Ken Miller e003c66498 support PGM and PPM formats 2014-09-07 00:38:18 -05:00
Tero Hänninen a5f1cb5657 Fix comments 2014-09-05 18:38:39 +03:00
Sean Barrett a14339a019 fix handling of tRNS chunk in PNG (used wrong variable for output channels) 2014-08-26 13:39:53 -07:00
Sean Barrett b36f9908ce Merge branch 'master' of https://github.com/thedmd/stb into working 
Conflicts:
	stb_image.h
 2014-08-16 13:45:32 -07:00
Michał Cichoń 10def9b150 fix MSVC-ARM internal compiler error by wrapping malloc 
For some reason Microsoft CL compiler for ARM is unable to compile malloc when parameter is an expression. malloc(x * y) will cause internal compiler error, malloc(x) is however fine.
 2014-08-08 00:46:45 +02:00
Sean Barrett 29f59c0460 update version number 2014-08-07 04:44:17 -07:00
Ronny Chevalier b8b6e7c31a stb_image: fix unused parameter 2014-08-07 03:26:20 -07:00
Ronny Chevalier 893ef013b2 stb_image: fix undefined preprocessor definition 2014-08-07 03:26:08 -07:00
Sean Barrett bcefca10f7 fix bad fix in previous fix 2014-07-15 22:26:01 -07:00
Sean Barrett 75b9e9cc1b update stb_image version number 2014-07-09 23:45:58 -07:00