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Update dependencies
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aff0c06458
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5 changed files with 1094 additions and 797 deletions
21
third_party/lodepng/LICENSE.txt
vendored
Normal file
21
third_party/lodepng/LICENSE.txt
vendored
Normal file
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@ -0,0 +1,21 @@
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Copyright (c) 2005-2018 Lode Vandevenne
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
|
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
|
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claim that you wrote the original software. If you use this software
|
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in a product, an acknowledgment in the product documentation would be
|
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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1389
third_party/lodepng/lodepng.c
vendored
1389
third_party/lodepng/lodepng.c
vendored
File diff suppressed because it is too large
Load diff
70
third_party/lodepng/lodepng.h
vendored
70
third_party/lodepng/lodepng.h
vendored
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@ -1,7 +1,7 @@
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/*
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LodePNG version 20191109
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LodePNG version 20200306
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Copyright (c) 2005-2019 Lode Vandevenne
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Copyright (c) 2005-2020 Lode Vandevenne
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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|
@ -346,8 +346,8 @@ typedef struct LodePNGColorMode {
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The palette is only supported for color type 3.
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*/
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unsigned char* palette; /*palette in RGBARGBA... order. When allocated, must be either 0, or have size 1024*/
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size_t palettesize; /*palette size in number of colors (amount of bytes is 4 * palettesize)*/
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unsigned char* palette; /*palette in RGBARGBA... order. Must be either 0, or when allocated must have 1024 bytes*/
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size_t palettesize; /*palette size in number of colors (amount of used bytes is 4 * palettesize)*/
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/*
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transparent color key (tRNS)
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@ -693,8 +693,9 @@ typedef struct LodePNGColorStats {
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void lodepng_color_stats_init(LodePNGColorStats* stats);
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/*Get a LodePNGColorStats of the image. The stats must already have been inited.*/
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void lodepng_compute_color_stats(LodePNGColorStats* stats,
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/*Get a LodePNGColorStats of the image. The stats must already have been inited.
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Returns error code (e.g. alloc fail) or 0 if ok.*/
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unsigned lodepng_compute_color_stats(LodePNGColorStats* stats,
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const unsigned char* image, unsigned w, unsigned h,
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const LodePNGColorMode* mode_in);
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@ -856,32 +857,32 @@ Input must be at the beginning of a chunk (result of a previous lodepng_chunk_ne
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or the 8th byte of a PNG file which always has the first chunk), or alternatively may
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point to the first byte of the PNG file (which is not a chunk but the magic header, the
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function will then skip over it and return the first real chunk).
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Expects at least 8 readable bytes of memory in the input pointer.
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Will output pointer to the start of the next chunk or the end of the file if there
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is no more chunk after this. Start this process at the 8th byte of the PNG file.
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Will output pointer to the start of the next chunk, or at or beyond end of the file if there
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is no more chunk after this or possibly if the chunk is corrupt.
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Start this process at the 8th byte of the PNG file.
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In a non-corrupt PNG file, the last chunk should have name "IEND".
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*/
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unsigned char* lodepng_chunk_next(unsigned char* chunk);
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const unsigned char* lodepng_chunk_next_const(const unsigned char* chunk);
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unsigned char* lodepng_chunk_next(unsigned char* chunk, unsigned char* end);
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const unsigned char* lodepng_chunk_next_const(const unsigned char* chunk, const unsigned char* end);
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/*Finds the first chunk with the given type in the range [chunk, end), or returns NULL if not found.*/
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unsigned char* lodepng_chunk_find(unsigned char* chunk, const unsigned char* end, const char type[5]);
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unsigned char* lodepng_chunk_find(unsigned char* chunk, unsigned char* end, const char type[5]);
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const unsigned char* lodepng_chunk_find_const(const unsigned char* chunk, const unsigned char* end, const char type[5]);
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/*
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Appends chunk to the data in out. The given chunk should already have its chunk header.
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The out variable and outlength are updated to reflect the new reallocated buffer.
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The out variable and outsize are updated to reflect the new reallocated buffer.
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Returns error code (0 if it went ok)
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*/
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unsigned lodepng_chunk_append(unsigned char** out, size_t* outlength, const unsigned char* chunk);
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unsigned lodepng_chunk_append(unsigned char** out, size_t* outsize, const unsigned char* chunk);
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/*
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Appends new chunk to out. The chunk to append is given by giving its length, type
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and data separately. The type is a 4-letter string.
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The out variable and outlength are updated to reflect the new reallocated buffer.
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The out variable and outsize are updated to reflect the new reallocated buffer.
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Returne error code (0 if it went ok)
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*/
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unsigned lodepng_chunk_create(unsigned char** out, size_t* outlength, unsigned length,
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unsigned lodepng_chunk_create(unsigned char** out, size_t* outsize, unsigned length,
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const char* type, const unsigned char* data);
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@ -1053,8 +1054,7 @@ TODO:
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[ ] let the C++ wrapper catch exceptions coming from the standard library and return LodePNG error codes
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[ ] allow user to provide custom color conversion functions, e.g. for premultiplied alpha, padding bits or not, ...
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[ ] allow user to give data (void*) to custom allocator
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[ ] provide alternatives for C library functions not present on some platforms (memcpy, ...)
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[ ] rename "grey" to "gray" everywhere since "color" also uses US spelling (keep "grey" copies for backwards compatibility)
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[X] provide alternatives for C library functions not present on some platforms (memcpy, ...)
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*/
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#endif /*LODEPNG_H inclusion guard*/
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@ -1570,12 +1570,12 @@ Iterate to the next chunk. This works if you have a buffer with consecutive chun
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functions do no boundary checking of the allocated data whatsoever, so make sure there is enough
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data available in the buffer to be able to go to the next chunk.
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unsigned lodepng_chunk_append(unsigned char** out, size_t* outlength, const unsigned char* chunk):
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unsigned lodepng_chunk_create(unsigned char** out, size_t* outlength, unsigned length,
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unsigned lodepng_chunk_append(unsigned char** out, size_t* outsize, const unsigned char* chunk):
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unsigned lodepng_chunk_create(unsigned char** out, size_t* outsize, unsigned length,
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const char* type, const unsigned char* data):
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These functions are used to create new chunks that are appended to the data in *out that has
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length *outlength. The append function appends an existing chunk to the new data. The create
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length *outsize. The append function appends an existing chunk to the new data. The create
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function creates a new chunk with the given parameters and appends it. Type is the 4-letter
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name of the chunk.
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@ -1775,14 +1775,18 @@ symbol.
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Not all changes are listed here, the commit history in github lists more:
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https://github.com/lvandeve/lodepng
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*) 06 mar 2020: simplified some of the dynamic memory allocations.
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*) 12 jan 2020: (!) added 'end' argument to lodepng_chunk_next to allow correct
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overflow checks.
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*) 14 aug 2019: around 25% faster decoding thanks to huffman lookup tables.
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*) 15 jun 2019 (!): auto_choose_color API changed (for bugfix: don't use palette
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if gray ICC profile) and non-ICC LodePNGColorProfile renamed to LodePNGColorStats.
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*) 15 jun 2019: (!) auto_choose_color API changed (for bugfix: don't use palette
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if gray ICC profile) and non-ICC LodePNGColorProfile renamed to
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LodePNGColorStats.
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*) 30 dec 2018: code style changes only: removed newlines before opening braces.
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*) 10 sep 2018: added way to inspect metadata chunks without full decoding.
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*) 19 aug 2018 (!): fixed color mode bKGD is encoded with and made it use
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*) 19 aug 2018: (!) fixed color mode bKGD is encoded with and made it use
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palette index in case of palette.
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*) 10 aug 2018 (!): added support for gAMA, cHRM, sRGB and iCCP chunks. This
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*) 10 aug 2018: (!) added support for gAMA, cHRM, sRGB and iCCP chunks. This
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change is backwards compatible unless you relied on unknown_chunks for those.
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*) 11 jun 2018: less restrictive check for pixel size integer overflow
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*) 14 jan 2018: allow optionally ignoring a few more recoverable errors
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@ -1802,25 +1806,25 @@ https://github.com/lvandeve/lodepng
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*) 22 dec 2013: Power of two windowsize required for optimization.
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*) 15 apr 2013: Fixed bug with LAC_ALPHA and color key.
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*) 25 mar 2013: Added an optional feature to ignore some PNG errors (fix_png).
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*) 11 mar 2013 (!): Bugfix with custom free. Changed from "my" to "lodepng_"
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*) 11 mar 2013: (!) Bugfix with custom free. Changed from "my" to "lodepng_"
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prefix for the custom allocators and made it possible with a new #define to
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use custom ones in your project without needing to change lodepng's code.
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*) 28 jan 2013: Bugfix with color key.
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*) 27 okt 2012: Tweaks in text chunk keyword length error handling.
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*) 8 okt 2012 (!): Added new filter strategy (entropy) and new auto color mode.
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*) 8 okt 2012: (!) Added new filter strategy (entropy) and new auto color mode.
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(no palette). Better deflate tree encoding. New compression tweak settings.
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Faster color conversions while decoding. Some internal cleanups.
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*) 23 sep 2012: Reduced warnings in Visual Studio a little bit.
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*) 1 sep 2012 (!): Removed #define's for giving custom (de)compression functions
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*) 1 sep 2012: (!) Removed #define's for giving custom (de)compression functions
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and made it work with function pointers instead.
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*) 23 jun 2012: Added more filter strategies. Made it easier to use custom alloc
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and free functions and toggle #defines from compiler flags. Small fixes.
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*) 6 may 2012 (!): Made plugging in custom zlib/deflate functions more flexible.
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*) 22 apr 2012 (!): Made interface more consistent, renaming a lot. Removed
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*) 6 may 2012: (!) Made plugging in custom zlib/deflate functions more flexible.
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*) 22 apr 2012: (!) Made interface more consistent, renaming a lot. Removed
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redundant C++ codec classes. Reduced amount of structs. Everything changed,
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but it is cleaner now imho and functionality remains the same. Also fixed
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several bugs and shrunk the implementation code. Made new samples.
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*) 6 nov 2011 (!): By default, the encoder now automatically chooses the best
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*) 6 nov 2011: (!) By default, the encoder now automatically chooses the best
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PNG color model and bit depth, based on the amount and type of colors of the
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raw image. For this, autoLeaveOutAlphaChannel replaced by auto_choose_color.
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*) 9 okt 2011: simpler hash chain implementation for the encoder.
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@ -1829,7 +1833,7 @@ https://github.com/lvandeve/lodepng
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A bug with the PNG filtertype heuristic was fixed, so that it chooses much
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better ones (it's quite significant). A setting to do an experimental, slow,
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brute force search for PNG filter types is added.
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*) 17 aug 2011 (!): changed some C zlib related function names.
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*) 17 aug 2011: (!) changed some C zlib related function names.
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*) 16 aug 2011: made the code less wide (max 120 characters per line).
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*) 17 apr 2011: code cleanup. Bugfixes. Convert low to 16-bit per sample colors.
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*) 21 feb 2011: fixed compiling for C90. Fixed compiling with sections disabled.
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@ -1937,5 +1941,5 @@ Domain: gmail dot com.
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Account: lode dot vandevenne.
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Copyright (c) 2005-2019 Lode Vandevenne
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Copyright (c) 2005-2020 Lode Vandevenne
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*/
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|
|
53
third_party/utfcpp/source/utf8/core.h
vendored
53
third_party/utfcpp/source/utf8/core.h
vendored
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@ -77,12 +77,29 @@ namespace internal
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{
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return static_cast<uint8_t>(0xff & oc);
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}
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template<typename u16_type>
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inline uint16_t mask16(u16_type oc)
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{
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return static_cast<uint16_t>(0xffff & oc);
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}
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template<typename octet_type>
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inline bool is_trail(octet_type oc)
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{
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return ((utf8::internal::mask8(oc) >> 6) == 0x2);
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}
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template <typename u16>
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inline bool is_lead_surrogate(u16 cp)
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{
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return (cp >= LEAD_SURROGATE_MIN && cp <= LEAD_SURROGATE_MAX);
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}
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template <typename u16>
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inline bool is_trail_surrogate(u16 cp)
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{
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return (cp >= TRAIL_SURROGATE_MIN && cp <= TRAIL_SURROGATE_MAX);
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}
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template <typename u16>
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inline bool is_surrogate(u16 cp)
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{
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@ -281,7 +298,41 @@ namespace internal
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}
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} // namespace internal
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}
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/// The library API - functions intended to be called by the users
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// Byte order mark
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const uint8_t bom[] = {0xef, 0xbb, 0xbf};
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template <typename octet_iterator>
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octet_iterator find_invalid(octet_iterator start, octet_iterator end)
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{
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octet_iterator result = start;
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while (result != end) {
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utf8::internal::utf_error err_code = utf8::internal::validate_next(result, end);
|
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if (err_code != internal::UTF8_OK)
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return result;
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}
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return result;
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||||
}
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template <typename octet_iterator>
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inline bool is_valid(octet_iterator start, octet_iterator end)
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{
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return (utf8::find_invalid(start, end) == end);
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}
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|
||||
template <typename octet_iterator>
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||||
inline bool starts_with_bom (octet_iterator it, octet_iterator end)
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{
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return (
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((it != end) && (utf8::internal::mask8(*it++)) == bom[0]) &&
|
||||
((it != end) && (utf8::internal::mask8(*it++)) == bom[1]) &&
|
||||
((it != end) && (utf8::internal::mask8(*it)) == bom[2])
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||||
);
|
||||
}
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} // namespace utf8
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|
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#endif // header guard
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|
|
184
third_party/utfcpp/source/utf8/unchecked.h
vendored
184
third_party/utfcpp/source/utf8/unchecked.h
vendored
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@ -34,6 +34,69 @@ namespace utf8
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{
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||||
namespace unchecked
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{
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||||
template <typename octet_iterator>
|
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octet_iterator append(uint32_t cp, octet_iterator result)
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{
|
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if (cp < 0x80) // one octet
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*(result++) = static_cast<uint8_t>(cp);
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||||
else if (cp < 0x800) { // two octets
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||||
*(result++) = static_cast<uint8_t>((cp >> 6) | 0xc0);
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||||
*(result++) = static_cast<uint8_t>((cp & 0x3f) | 0x80);
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}
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else if (cp < 0x10000) { // three octets
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*(result++) = static_cast<uint8_t>((cp >> 12) | 0xe0);
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*(result++) = static_cast<uint8_t>(((cp >> 6) & 0x3f) | 0x80);
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*(result++) = static_cast<uint8_t>((cp & 0x3f) | 0x80);
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}
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else { // four octets
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*(result++) = static_cast<uint8_t>((cp >> 18) | 0xf0);
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*(result++) = static_cast<uint8_t>(((cp >> 12) & 0x3f)| 0x80);
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||||
*(result++) = static_cast<uint8_t>(((cp >> 6) & 0x3f) | 0x80);
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||||
*(result++) = static_cast<uint8_t>((cp & 0x3f) | 0x80);
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
template <typename octet_iterator, typename output_iterator>
|
||||
output_iterator replace_invalid(octet_iterator start, octet_iterator end, output_iterator out, uint32_t replacement)
|
||||
{
|
||||
while (start != end) {
|
||||
octet_iterator sequence_start = start;
|
||||
internal::utf_error err_code = utf8::internal::validate_next(start, end);
|
||||
switch (err_code) {
|
||||
case internal::UTF8_OK :
|
||||
for (octet_iterator it = sequence_start; it != start; ++it)
|
||||
*out++ = *it;
|
||||
break;
|
||||
case internal::NOT_ENOUGH_ROOM:
|
||||
out = utf8::unchecked::append (replacement, out);
|
||||
start = end;
|
||||
break;
|
||||
case internal::INVALID_LEAD:
|
||||
out = utf8::unchecked::append (replacement, out);
|
||||
++start;
|
||||
break;
|
||||
case internal::INCOMPLETE_SEQUENCE:
|
||||
case internal::OVERLONG_SEQUENCE:
|
||||
case internal::INVALID_CODE_POINT:
|
||||
out = utf8::unchecked::append (replacement, out);
|
||||
++start;
|
||||
// just one replacement mark for the sequence
|
||||
while (start != end && utf8::internal::is_trail(*start))
|
||||
++start;
|
||||
break;
|
||||
}
|
||||
}
|
||||
return out;
|
||||
}
|
||||
|
||||
template <typename octet_iterator, typename output_iterator>
|
||||
inline output_iterator replace_invalid(octet_iterator start, octet_iterator end, output_iterator out)
|
||||
{
|
||||
static const uint32_t replacement_marker = utf8::internal::mask16(0xfffd);
|
||||
return utf8::unchecked::replace_invalid(start, end, out, replacement_marker);
|
||||
}
|
||||
|
||||
template <typename octet_iterator>
|
||||
uint32_t next(octet_iterator& it)
|
||||
{
|
||||
|
@ -65,6 +128,12 @@ namespace utf8
|
|||
return cp;
|
||||
}
|
||||
|
||||
template <typename octet_iterator>
|
||||
uint32_t peek_next(octet_iterator it)
|
||||
{
|
||||
return utf8::unchecked::next(it);
|
||||
}
|
||||
|
||||
template <typename octet_iterator>
|
||||
uint32_t prior(octet_iterator& it)
|
||||
{
|
||||
|
@ -73,6 +142,21 @@ namespace utf8
|
|||
return utf8::unchecked::next(temp);
|
||||
}
|
||||
|
||||
template <typename octet_iterator, typename distance_type>
|
||||
void advance (octet_iterator& it, distance_type n)
|
||||
{
|
||||
const distance_type zero(0);
|
||||
if (n < zero) {
|
||||
// backward
|
||||
for (distance_type i = n; i < zero; ++i)
|
||||
utf8::unchecked::prior(it);
|
||||
} else {
|
||||
// forward
|
||||
for (distance_type i = zero; i < n; ++i)
|
||||
utf8::unchecked::next(it);
|
||||
}
|
||||
}
|
||||
|
||||
template <typename octet_iterator>
|
||||
typename std::iterator_traits<octet_iterator>::difference_type
|
||||
distance (octet_iterator first, octet_iterator last)
|
||||
|
@ -82,6 +166,106 @@ namespace utf8
|
|||
utf8::unchecked::next(first);
|
||||
return dist;
|
||||
}
|
||||
|
||||
template <typename u16bit_iterator, typename octet_iterator>
|
||||
octet_iterator utf16to8 (u16bit_iterator start, u16bit_iterator end, octet_iterator result)
|
||||
{
|
||||
while (start != end) {
|
||||
uint32_t cp = utf8::internal::mask16(*start++);
|
||||
// Take care of surrogate pairs first
|
||||
if (utf8::internal::is_lead_surrogate(cp)) {
|
||||
uint32_t trail_surrogate = utf8::internal::mask16(*start++);
|
||||
cp = (cp << 10) + trail_surrogate + internal::SURROGATE_OFFSET;
|
||||
}
|
||||
result = utf8::unchecked::append(cp, result);
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
template <typename u16bit_iterator, typename octet_iterator>
|
||||
u16bit_iterator utf8to16 (octet_iterator start, octet_iterator end, u16bit_iterator result)
|
||||
{
|
||||
while (start < end) {
|
||||
uint32_t cp = utf8::unchecked::next(start);
|
||||
if (cp > 0xffff) { //make a surrogate pair
|
||||
*result++ = static_cast<uint16_t>((cp >> 10) + internal::LEAD_OFFSET);
|
||||
*result++ = static_cast<uint16_t>((cp & 0x3ff) + internal::TRAIL_SURROGATE_MIN);
|
||||
}
|
||||
else
|
||||
*result++ = static_cast<uint16_t>(cp);
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
template <typename octet_iterator, typename u32bit_iterator>
|
||||
octet_iterator utf32to8 (u32bit_iterator start, u32bit_iterator end, octet_iterator result)
|
||||
{
|
||||
while (start != end)
|
||||
result = utf8::unchecked::append(*(start++), result);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
template <typename octet_iterator, typename u32bit_iterator>
|
||||
u32bit_iterator utf8to32 (octet_iterator start, octet_iterator end, u32bit_iterator result)
|
||||
{
|
||||
while (start < end)
|
||||
(*result++) = utf8::unchecked::next(start);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
// The iterator class
|
||||
template <typename octet_iterator>
|
||||
class iterator {
|
||||
octet_iterator it;
|
||||
public:
|
||||
typedef uint32_t value_type;
|
||||
typedef uint32_t* pointer;
|
||||
typedef uint32_t& reference;
|
||||
typedef std::ptrdiff_t difference_type;
|
||||
typedef std::bidirectional_iterator_tag iterator_category;
|
||||
iterator () {}
|
||||
explicit iterator (const octet_iterator& octet_it): it(octet_it) {}
|
||||
// the default "big three" are OK
|
||||
octet_iterator base () const { return it; }
|
||||
uint32_t operator * () const
|
||||
{
|
||||
octet_iterator temp = it;
|
||||
return utf8::unchecked::next(temp);
|
||||
}
|
||||
bool operator == (const iterator& rhs) const
|
||||
{
|
||||
return (it == rhs.it);
|
||||
}
|
||||
bool operator != (const iterator& rhs) const
|
||||
{
|
||||
return !(operator == (rhs));
|
||||
}
|
||||
iterator& operator ++ ()
|
||||
{
|
||||
::std::advance(it, utf8::internal::sequence_length(it));
|
||||
return *this;
|
||||
}
|
||||
iterator operator ++ (int)
|
||||
{
|
||||
iterator temp = *this;
|
||||
::std::advance(it, utf8::internal::sequence_length(it));
|
||||
return temp;
|
||||
}
|
||||
iterator& operator -- ()
|
||||
{
|
||||
utf8::unchecked::prior(it);
|
||||
return *this;
|
||||
}
|
||||
iterator operator -- (int)
|
||||
{
|
||||
iterator temp = *this;
|
||||
utf8::unchecked::prior(it);
|
||||
return temp;
|
||||
}
|
||||
}; // class iterator
|
||||
|
||||
} // namespace utf8::unchecked
|
||||
} // namespace utf8
|
||||
|
||||
|
|
Loading…
Reference in a new issue