Commit Graph

292 Commits

Author SHA1 Message Date
Sean Barrett
d808adb77f stb_dxt: fix bug with constant color & varying alpha 2018-01-29 05:17:07 -08:00
Sean Barrett
5db03ef592 Merge branch 'master' into working
Conflicts:
	stb_image.h
2018-01-29 04:04:28 -08:00
Sean Barrett
094cb31ec8 stb_image: compile as C; stb_image_write: credits 2018-01-29 04:03:18 -08:00
Sean Barrett
ae00f3a5f0 stb_image credits 2018-01-29 03:50:42 -08:00
Sean Barrett
1b9689cf77 Merge branch 'feature/gif_frames' of https://github.com/tocchan/stb 2018-01-29 03:50:03 -08:00
Sean Barrett
f9d78c05a9 stb_image credits 2018-01-29 03:49:53 -08:00
Sean Barrett
edf35ad14c Merge branch 'master' of https://github.com/jlnr/stb 2018-01-29 03:43:08 -08:00
Sean Barrett
0bd0d049e7 stb_image docs 2018-01-29 03:42:34 -08:00
Sean Barrett
ead2b3fe2c Merge branch 'stbi_is_16' of https://github.com/anael-seghezzi/stb 2018-01-29 03:38:04 -08:00
Sean Barrett
72ef9dcbad fix fall-through case warning, add credit 2018-01-29 03:27:58 -08:00
Sean Barrett
8cc624142b credits 2018-01-29 03:25:02 -08:00
Sean Barrett
82f1929de5 Merge branch 'patch-1' of https://github.com/darealshinji/stb 2018-01-29 03:23:53 -08:00
Sean Barrett
da4b342213 credits 2018-01-29 03:23:45 -08:00
Sean Barrett
ab4fb5c38a Merge branch '1bit_bmp' of https://github.com/plzombie/stb 2018-01-29 03:22:12 -08:00
Sean Barrett
b0383facf8 Merge branch 'master' of https://github.com/lieff/stb 2018-01-29 03:20:21 -08:00
Sean Barrett
39241e4928 update version number 2018-01-29 02:53:14 -08:00
Sean Barrett
593c9b7192 rewrite stbi__shiftsigned to use a different, faster algorithm
to avoid probelm with clang -O2 to outputting buggy code
2018-01-29 02:30:34 -08:00
Chris Forseth
de75509b1c Remove a nullptr 2017-11-27 23:42:13 -06:00
Chris Forseth
03b4bbc5d2 Fix a disposal flag mistype.
Only clear to background color if index is non-zero.
Fixed a the disposal test gif I was using - now renders properly (gif has no transparent set, but all renderers still considered it transparent.  Spec says 0 should be ignored if 0, but was confusing by saying it only in the context of the pal not existing.. but seems to be the case always.
2017-11-27 23:32:44 -06:00
Chris Forseth
28c28b0bd2 Per the contributor doc - added my name. Noticed urraka also did some work here, so hopefully didn't step on any toes.
- Fix an issue where the spec of the gif for restore to previous uses code 3, not 4.
- To get results that worked - made an assumption that "clear to background" meant "revert back to what was there before I drew", where mode 1 would revert back to the previous frame [slightly different].  If I clear to background color instead, I ended up with large opaque squares in gifs that changes their transparent colour each frame.
- Background color is supposed to be used only for pixels not rendered by the image, so took that to mean it only really affected the previous frame, or potentially any frame that used full disposal.  Since background color is allowed to be unspecified this is what lead me to believe I shouldn't use it for disposal.
- Oh, also upped the codes table to 8192 as 4096 ended up being too small for a few of my test cases.

Full disclaimer - I only read through the GIF format for this contribution, so competly could be misinterpreting the spec - but this gave me reuslts that matched Chrome.
2017-11-27 23:06:53 -06:00
Chris Forseth
87a3143fb4 GIF Loading - multiple frames;
- Allow loading a gif as multiple frames into a single buffer.  Each frame is a full image seperated by a (w * h * comp) stride.
- Optionally, can pass in a pointer to a int, which will be filled with an array layers long contain ms for each frame.
- Fix gif's not loading the initial transparent background
- I believe also fix disposal rules for subsequent frames (though being somewhat inefficient with memory to do so)
- Add a flip_vertical that takes into account slices as well.

Compiled using VS2017, but nothing else as I'm not really setup for it.  Apologies.
2017-11-27 22:41:51 -06:00
Julian Raschke
4bffebc5f0 Avoid warning about unused stbi__float_postprocess 2017-11-25 17:23:33 +08:00
Anaël Seghezzi
fcf0b99601 add stbi_is_16 2017-11-24 14:36:37 +01:00
Anaël Seghezzi
4c1a786455 Revert "return comp info in bytes (support for 16 bit images)"
This reverts commit 9dfa8c7f31.
2017-11-24 14:35:14 +01:00
Anaël Seghezzi
9dfa8c7f31 return comp info in bytes (support for 16 bit images) 2017-11-24 13:44:39 +01:00
darealshinji
b6b43df186 Use stbi__mad4sizes_valid() only if STBI_NO_LINEAR or STBI_NO_HDR are defined 2017-09-04 14:01:43 +02:00
Mikhail Morozov
350173026a stb_image: support for 1-bit BMP 2017-09-01 02:06:06 +03:00
lieff
c06c9fe6bc place const tables to protected .rdata section 2017-08-31 19:33:28 +03:00
Sean Barrett
555efbedfc Update version numbers 2017-07-23 14:09:39 -07:00
Fabian Giesen
0fbbda56fa stb_image: Account for tRNS chunk in non-paletted images.
So we report channels_in_file correctly.

Fixes #329.
2017-07-23 01:41:12 -07:00
Fabian Giesen
fedf03e774 Merge branch 'fix-issue-466' of https://github.com/rygorous/stb into dev 2017-07-22 19:42:52 -07:00
Fabian Giesen
282576fbfb Merge branch 'rygorous-fix-issue-276' into dev 2017-07-22 19:42:23 -07:00
Fabian Giesen
49c7f1b397 stb_image: Optimise vertical flip.
This incorporates #462, but also factors everything into one
function that is shared between 8-bit integer, 16-bit integer, and
float pixels (vertical flip operates on rows of bytes and doesn't
really care), and finally always uses a 2k on-stack buffer without
dynamic memory allocation, doing multiple memcpys per row if
necessary. Not only does this remove an out-of-memory failure mode,
it is also preferable for large images, since it's more
L1-cache-firendly this way.

Fixes #462.
2017-07-22 18:43:36 -07:00
Fabian Giesen
25a2596b2f stb_image: Fix rounding during unpremultiply.
This is the same method as in pull request #455, but using integer
arithmetic instead of converting to float.

Fixes #455.
2017-07-22 15:59:41 -07:00
Fabian Giesen
463dd85f1f Merge branch 'Reedbeta-fix-vs2015-warnings' into dev 2017-07-22 15:51:28 -07:00
Fabian Giesen
69ef103721 Merge branch 'poppolopoppo-load_16_variants' into dev 2017-07-22 15:42:58 -07:00
Fabian Giesen
316571b395 stb_image: 3-char indent and other minor formatting issues. 2017-07-22 15:38:56 -07:00
Fabian Giesen
14c2993310 Merge branch 'realitix-robustify' into dev 2017-07-22 15:23:14 -07:00
Fabian Giesen
cc7f1d1e6d stb_image: Documentation fixes.
req_comp is now desired_channels and *comp is *channels_in_file.

Fixes issue #466.
2017-07-21 22:35:01 -07:00
Fabian Giesen
0674660451 stb_image: Relax raw_len validation for non-interlaced PNGs.
We used to require exact match between img_len and raw_len for
non-interlaced PNGs, but the PNG in issue #276 has extra bytes
(all zeros) at the end of the compressed DEFLATE stream.

The PNG spec doesn't have anything to say about it (that I
can tell), and if libpng accepts this, who are we to judge.

Fixes issue #276.
2017-07-21 21:55:37 -07:00
Nathan Reed
76a1a1c408 Fix variable-shadowing warnings 2017-05-11 22:49:19 -07:00
Nathan Reed
7091cb6ed6 Fix integer conversion warning 2017-05-11 22:48:46 -07:00
PopPoLoPoPpo
9bcda8bb1c Add stbi_load_16() variants to load from memory or callbacks 2017-05-05 00:39:08 +02:00
Sean Barrett
84e42c2e8d fix stbi_shiftsigned to be shifting a value that's unsigned 2017-04-28 23:35:37 -07:00
Jean-Sebastien Bevilacqua
d8796f05bf Robustify stbi__sse2_available in stb_image.h
Function `stbi__sse2_available` takes no argument,
we should be explicit by passing `void` as argument.
It will remove warnings from 'some' compilers.
2017-04-25 21:02:48 +02:00
Kevin Schmidt
97ae5fb3db Edit contributor list. 2017-04-18 17:36:48 +02:00
Kevin Schmidt
1dfdf5558d Fix STBI_NO_STDIO. 2017-04-18 16:17:27 +02:00
Sean Barrett
d795785f3d docs 2017-03-18 18:50:06 -07:00
Sean Barrett
56a61e178f reorganize contributor list (removing one redundant name and adding one new one as well) 2017-03-18 18:48:09 -07:00
Sean Barrett
c79fa78ee8 tweaks to previous merge 2017-03-18 18:42:54 -07:00