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update stb libraries

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This commit is contained in:
Connor Olding 2017-03-31 04:36:15 +00:00
parent 5d9ccb42f8
commit bf433911d3
2 changed files with 811 additions and 473 deletions
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1220
stb_image.h
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64
stb_image_write.h
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@ -1,4 +1,4 @@
/* stb_image_write - v1.02 - public domain - http://nothings.org/stb/stb_image_write.h
/* stb_image_write - v1.05 - public domain - http://nothings.org/stb/stb_image_write.h
writes out PNG/BMP/TGA images to C stdio - Sean Barrett 2010-2015
no warranty implied; use at your own risk
@ -103,12 +103,12 @@ CREDITS:
Jonas Karlsson
Filip Wasil
Thatcher Ulrich
github:poppolopoppo
Patrick Boettcher
LICENSE
This software is dual-licensed to the public domain and under the following
license: you are granted a perpetual, irrevocable license to copy, modify,
publish, and distribute this file as you see fit.
See end of file for license information.
*/
@ -293,10 +293,8 @@ static void stbiw__write_pixel(stbi__write_context *s, int rgb_dir, int comp, in
s->func(s->context, &d[comp - 1], 1);
switch (comp) {
case 2: // 2 pixels = mono + alpha, alpha is written separately, so same as 1-channel case
case 1:
s->func(s->context,d,1);
break;
case 2:
if (expand_mono)
stbiw__write3(s, d[0], d[0], d[0]); // monochrome bmp
else
@ -475,7 +473,6 @@ int stbi_write_tga(char const *filename, int x, int y, int comp, const void *dat
// *************************************************************************************************
// Radiance RGBE HDR writer
// by Baldur Karlsson
#ifndef STBI_WRITE_NO_STDIO
#define stbiw__max(a, b) ((a) > (b) ? (a) : (b))
@ -630,6 +627,7 @@ int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, i
return stbi_write_hdr_core(&s, x, y, comp, (float *) data);
}
#ifndef STBI_WRITE_NO_STDIO
int stbi_write_hdr(char const *filename, int x, int y, int comp, const float *data)
{
stbi__write_context s;
@ -896,6 +894,7 @@ static unsigned char stbiw__paeth(int a, int b, int c)
return STBIW_UCHAR(c);
}
// @OPTIMIZE: provide an option that always forces left-predict or paeth predict
unsigned char *stbi_write_png_to_mem(unsigned char *pixels, int stride_bytes, int x, int y, int n, int *out_len)
{
int ctype[5] = { -1, 0, 4, 2, 6 };
@ -912,10 +911,10 @@ unsigned char *stbi_write_png_to_mem(unsigned char *pixels, int stride_bytes, in
for (j=0; j < y; ++j) {
static int mapping[] = { 0,1,2,3,4 };
static int firstmap[] = { 0,1,0,5,6 };
int *mymap = j ? mapping : firstmap;
int *mymap = (j != 0) ? mapping : firstmap;
int best = 0, bestval = 0x7fffffff;
for (p=0; p < 2; ++p) {
for (k= p?best:0; k < 5; ++k) {
for (k= p?best:0; k < 5; ++k) { // @TODO: clarity: rewrite this to go 0..5, and 'continue' the unwanted ones during 2nd pass
int type = mymap[k],est=0;
unsigned char *z = pixels + stride_bytes*j;
for (i=0; i < n; ++i)
@ -1017,6 +1016,9 @@ STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x,
#endif // STB_IMAGE_WRITE_IMPLEMENTATION
/* Revision history
1.04 (2017-03-03)
monochrome BMP expansion
1.03 ???
1.02 (2016-04-02)
avoid allocating large structures on the stack
1.01 (2016-01-16)
@ -1046,3 +1048,45 @@ STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x,
first public release
0.90 first internal release
*/
/*
------------------------------------------------------------------------------
This software is available under 2 licenses -- choose whichever you prefer.
------------------------------------------------------------------------------
ALTERNATIVE A - MIT License
Copyright (c) 2017 Sean Barrett
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
------------------------------------------------------------------------------
ALTERNATIVE B - Public Domain (www.unlicense.org)
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
software, either in source code form or as a compiled binary, for any purpose,
commercial or non-commercial, and by any means.
In jurisdictions that recognize copyright laws, the author or authors of this
software dedicate any and all copyright interest in the software to the public
domain. We make this dedication for the benefit of the public at large and to
the detriment of our heirs and successors. We intend this dedication to be an
overt act of relinquishment in perpetuity of all present and future rights to
this software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
------------------------------------------------------------------------------
*/