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Fix a pair of warnings in stb_image.h

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Gregory Mullen (grayhatter) 2017-03-03 11:16:03 -08:00
parent b1a0089c4b
commit 16c83cd5fc
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1 changed files with 38 additions and 37 deletions
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stb_image.h
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@ -53,7 +53,7 @@ RECENT REVISION HISTORY:
2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes 2.12 (2016-04-02) fix typo in 2.11 PSD fix that caused crashes
2.11 (2016-04-02) 16-bit PNGS; enable SSE2 in non-gcc x64 2.11 (2016-04-02) 16-bit PNGS; enable SSE2 in non-gcc x64
RGB-format JPEG; remove white matting in PSD; RGB-format JPEG; remove white matting in PSD;
allocate large structures on the stack; allocate large structures on the stack;
correct channel count for PNG & BMP correct channel count for PNG & BMP
2.10 (2016-01-22) avoid warning introduced in 2.09 2.10 (2016-01-22) avoid warning introduced in 2.09
2.09 (2016-01-16) 16-bit TGA; comments in PNM files; STBI_REALLOC_SIZED 2.09 (2016-01-16) 16-bit TGA; comments in PNM files; STBI_REALLOC_SIZED
@ -96,7 +96,7 @@ RECENT REVISION HISTORY:
Ryamond Barbiero Paul Du Bois Engin Manap github:snagar Ryamond Barbiero Paul Du Bois Engin Manap github:snagar
Michaelangel007@github Oriol Ferrer Mesia Dale Weiler github:Zelex Michaelangel007@github Oriol Ferrer Mesia Dale Weiler github:Zelex
Philipp Wiesemann Josh Tobin github:rlyeh github:grim210@github Philipp Wiesemann Josh Tobin github:rlyeh github:grim210@github
Blazej Dariusz Roszkowski github:sammyhw Blazej Dariusz Roszkowski github:sammyhw GrayHatter@uTox
*/ */
@ -267,11 +267,11 @@ RECENT REVISION HISTORY:
// =========================================================================== // ===========================================================================
// //
// ADDITIONAL CONFIGURATION // ADDITIONAL CONFIGURATION
// //
// - You can suppress implementation of any of the decoders to reduce // - You can suppress implementation of any of the decoders to reduce
// your code footprint by #defining one or more of the following // your code footprint by #defining one or more of the following
// symbols before creating the implementation. // symbols before creating the implementation.
// //
// STBI_NO_JPEG // STBI_NO_JPEG
// STBI_NO_PNG // STBI_NO_PNG
// STBI_NO_BMP // STBI_NO_BMP
@ -281,11 +281,11 @@ RECENT REVISION HISTORY:
// STBI_NO_HDR // STBI_NO_HDR
// STBI_NO_PIC // STBI_NO_PIC
// STBI_NO_PNM (.ppm and .pgm) // STBI_NO_PNM (.ppm and .pgm)
// //
// - You can request *only* certain decoders and suppress all other ones // - You can request *only* certain decoders and suppress all other ones
// (this will be more forward-compatible, as addition of new decoders // (this will be more forward-compatible, as addition of new decoders
// doesn't require you to disable them explicitly): // doesn't require you to disable them explicitly):
// //
// STBI_ONLY_JPEG // STBI_ONLY_JPEG
// STBI_ONLY_PNG // STBI_ONLY_PNG
// STBI_ONLY_BMP // STBI_ONLY_BMP
@ -295,7 +295,7 @@ RECENT REVISION HISTORY:
// STBI_ONLY_HDR // STBI_ONLY_HDR
// STBI_ONLY_PIC // STBI_ONLY_PIC
// STBI_ONLY_PNM (.ppm and .pgm) // STBI_ONLY_PNM (.ppm and .pgm)
// //
// - If you use STBI_NO_PNG (or _ONLY_ without PNG), and you still // - If you use STBI_NO_PNG (or _ONLY_ without PNG), and you still
// want the zlib decoder to be available, #define STBI_SUPPORT_ZLIB // want the zlib decoder to be available, #define STBI_SUPPORT_ZLIB
// //
@ -1761,7 +1761,7 @@ static void stbi__build_fast_ac(stbi__int16 *fast_ac, stbi__huffman *h)
// magnitude code followed by receive_extend code // magnitude code followed by receive_extend code
int k = ((i << len) & ((1 << FAST_BITS) - 1)) >> (FAST_BITS - magbits); int k = ((i << len) & ((1 << FAST_BITS) - 1)) >> (FAST_BITS - magbits);
int m = 1 << (magbits - 1); int m = 1 << (magbits - 1);
if (k < m) k += (-1 << magbits) + 1; if (k < m) k += (~0U << magbits) + 1;
// if the result is small enough, we can fit it in fast_ac table // if the result is small enough, we can fit it in fast_ac table
if (k >= -128 && k <= 127) if (k >= -128 && k <= 127)
fast_ac[i] = (stbi__int16) ((k << 8) + (run << 4) + (len + magbits)); fast_ac[i] = (stbi__int16) ((k << 8) + (run << 4) + (len + magbits));
@ -3594,6 +3594,7 @@ static stbi_uc *load_jpeg_image(stbi__jpeg *z, int *out_x, int *out_y, int *comp
static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri) static void *stbi__jpeg_load(stbi__context *s, int *x, int *y, int *comp, int req_comp, stbi__result_info *ri)
{ {
(void)ri; // This unused warning is safe to ignore.
unsigned char* result; unsigned char* result;
stbi__jpeg* j = (stbi__jpeg*) stbi__malloc(sizeof(stbi__jpeg)); stbi__jpeg* j = (stbi__jpeg*) stbi__malloc(sizeof(stbi__jpeg));
j->s = s; j->s = s;
@ -4605,7 +4606,7 @@ static int stbi__parse_png_file(stbi__png *z, int scan, int req_comp)
s->img_y = stbi__get32be(s); if (s->img_y > (1 << 24)) return stbi__err("too large","Very large image (corrupt?)"); s->img_y = stbi__get32be(s); if (s->img_y > (1 << 24)) return stbi__err("too large","Very large image (corrupt?)");
z->depth = stbi__get8(s); if (z->depth != 1 && z->depth != 2 && z->depth != 4 && z->depth != 8 && z->depth != 16) return stbi__err("1/2/4/8/16-bit only","PNG not supported: 1/2/4/8/16-bit only"); z->depth = stbi__get8(s); if (z->depth != 1 && z->depth != 2 && z->depth != 4 && z->depth != 8 && z->depth != 16) return stbi__err("1/2/4/8/16-bit only","PNG not supported: 1/2/4/8/16-bit only");
color = stbi__get8(s); if (color > 6) return stbi__err("bad ctype","Corrupt PNG"); color = stbi__get8(s); if (color > 6) return stbi__err("bad ctype","Corrupt PNG");
if (color == 3 && z->depth == 16) return stbi__err("bad ctype","Corrupt PNG"); if (color == 3 && z->depth == 16) return stbi__err("bad ctype","Corrupt PNG");
if (color == 3) pal_img_n = 3; else if (color & 1) return stbi__err("bad ctype","Corrupt PNG"); if (color == 3) pal_img_n = 3; else if (color & 1) return stbi__err("bad ctype","Corrupt PNG");
comp = stbi__get8(s); if (comp) return stbi__err("bad comp method","Corrupt PNG"); comp = stbi__get8(s); if (comp) return stbi__err("bad comp method","Corrupt PNG");
filter= stbi__get8(s); if (filter) return stbi__err("bad filter method","Corrupt PNG"); filter= stbi__get8(s); if (filter) return stbi__err("bad filter method","Corrupt PNG");
@ -4888,7 +4889,7 @@ static void *stbi__bmp_parse_header(stbi__context *s, stbi__bmp_data *info)
info->offset = stbi__get32le(s); info->offset = stbi__get32le(s);
info->hsz = hsz = stbi__get32le(s); info->hsz = hsz = stbi__get32le(s);
info->mr = info->mg = info->mb = info->ma = 0; info->mr = info->mg = info->mb = info->ma = 0;
if (hsz != 12 && hsz != 40 && hsz != 56 && hsz != 108 && hsz != 124) return stbi__errpuc("unknown BMP", "BMP type not supported: unknown"); if (hsz != 12 && hsz != 40 && hsz != 56 && hsz != 108 && hsz != 124) return stbi__errpuc("unknown BMP", "BMP type not supported: unknown");
if (hsz == 12) { if (hsz == 12) {
s->img_x = stbi__get16le(s); s->img_x = stbi__get16le(s);
@ -4973,7 +4974,7 @@ static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req
stbi__bmp_data info; stbi__bmp_data info;
STBI_NOTUSED(ri); STBI_NOTUSED(ri);
info.all_a = 255; info.all_a = 255;
if (stbi__bmp_parse_header(s, &info) == NULL) if (stbi__bmp_parse_header(s, &info) == NULL)
return NULL; // error code already set return NULL; // error code already set
@ -5092,7 +5093,7 @@ static void *stbi__bmp_load(stbi__context *s, int *x, int *y, int *comp, int req
stbi__skip(s, pad); stbi__skip(s, pad);
} }
} }
// if alpha channel is all 0s, replace with all 255s // if alpha channel is all 0s, replace with all 255s
if (target == 4 && all_a == 0) if (target == 4 && all_a == 0)
for (i=4*s->img_x*s->img_y-1; i >= 0; i -= 4) for (i=4*s->img_x*s->img_y-1; i >= 0; i -= 4)
@ -6537,7 +6538,7 @@ static int stbi__bmp_info(stbi__context *s, int *x, int *y, int *comp)
void *p; void *p;
stbi__bmp_data info; stbi__bmp_data info;
info.all_a = 255; info.all_a = 255;
p = stbi__bmp_parse_header(s, &info); p = stbi__bmp_parse_header(s, &info);
stbi__rewind( s ); stbi__rewind( s );
if (p == NULL) if (p == NULL)
@ -7012,38 +7013,38 @@ This software is available under 2 licenses -- choose whichever you prefer.
------------------------------------------------------------------------------ ------------------------------------------------------------------------------
ALTERNATIVE A - MIT License ALTERNATIVE A - MIT License
Copyright (c) 2017 Sean Barrett Copyright (c) 2017 Sean Barrett
Permission is hereby granted, free of charge, to any person obtaining a copy of 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 this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 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 of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions: so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software. copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 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 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE. SOFTWARE.
------------------------------------------------------------------------------ ------------------------------------------------------------------------------
ALTERNATIVE B - Public Domain (www.unlicense.org) ALTERNATIVE B - Public Domain (www.unlicense.org)
This is free and unencumbered software released into the public domain. This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or distribute this 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, software, either in source code form or as a compiled binary, for any purpose,
commercial or non-commercial, and by any means. commercial or non-commercial, and by any means.
In jurisdictions that recognize copyright laws, the author or authors of this 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 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 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 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 overt act of relinquishment in perpetuity of all present and future rights to
this software under copyright law. this software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 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 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 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. WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
------------------------------------------------------------------------------ ------------------------------------------------------------------------------
*/ */