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d92ab86c65
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86 Commits

Author SHA1 Message Date
Fabian Giesen
d92ab86c65 stb_image: Fix PNG initial size guess for 1/2/4 bpc. 2014-12-24 10:15:28 +01:00
Fabian Giesen
fb109abeaf stb_image: Update comments. 2014-12-24 10:07:52 +01:00
Sean Barrett
7f94e7e591 add #defines to allow disabling decoders for unwanted formats 2014-12-23 21:36:20 -08:00
Sean Barrett
53ca163e85 cleanup merge of ARM NEON support 
tweak docs
 2014-12-23 20:58:22 -08:00
Sean Barrett
de385bb6bb Merge branch 'fastjpeg' into working 2014-12-23 20:24:46 -08:00
Fabian Giesen
fd987527f1 stb_image: NEON YCbCr->RGB kernel. 
Also ran a bunch of test cases to make sure the IDCT and H2V2
resamplers were correct.
 2014-12-24 01:38:59 +01:00
Fabian Giesen
7d32f74d8a Merge branch 'fastjpeg' of https://github.com/nothings/stb into fastjpeg 
Conflicts:
	stb_image.h
 2014-12-23 23:52:12 +01:00
Sean Barrett
5b53d20c68 Put progressive JPEG AC decode logic back the way I wrote it originally (I changed it to match jpgd when I was trying to figure out why it didn't work); 
add STBI__ prefixes to internal SCAN_ enum;
strip unused function arguments for progressive funcs;
tweak release notes;
forget to git commit frequently so these would all be in their own commits;
 2014-12-23 05:11:36 -08:00
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
Fabian Giesen
a32d73dc3b stb_image: NEON integer IDCT (not yet tested!) 2014-12-21 12:55:50 +01:00
Fabian Giesen
0f3bf1564b stb_image: JPEG resampler func for NEON 2014-12-21 12:46:57 +01:00
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