/*

Copyright (c) 2014 - 2015, Syoyo Fujita

All rights reserved.

Redistribution and use in source and binary forms, with or without

modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright

notice, this list of conditions and the following disclaimer.

* Redistributions in binary form must reproduce the above copyright

notice, this list of conditions and the following disclaimer in the

documentation and/or other materials provided with the distribution.

* Neither the name of the <organization> nor the

names of its contributors may be used to endorse or promote products

derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND

ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY

DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/

#ifndef __TINYEXR_H__

#define __TINYEXR_H__

//

//

// Do this:

// #define TINYEXR_IMPLEMENTATION

// before you include this file in *one* C or C++ file to create the

// implementation.

//

// // i.e. it should look like this:

// #include ...

// #include ...

// #include ...

// #define TINYEXR_IMPLEMENTATION

// #include "tinyexr.h"

//

//

#include <stddef.h> // for size_t

#ifdef __cplusplus

extern "C" {

#endif

// pixel type: possible values are: UINT = 0 HALF = 1 FLOAT = 2

#define TINYEXR_PIXELTYPE_UINT (0)

#define TINYEXR_PIXELTYPE_HALF (1)

#define TINYEXR_PIXELTYPE_FLOAT (2)

#define TINYEXR_MAX_ATTRIBUTES (128)

#define TINYEXR_COMPRESSIONTYPE_NONE (0)

//#define TINYEXR_COMPRESSIONTYPE_RLE (1) // not supported yet

#define TINYEXR_COMPRESSIONTYPE_ZIPS (2)

#define TINYEXR_COMPRESSIONTYPE_ZIP (3)

#define TINYEXR_COMPRESSIONTYPE_PIZ (4)

typedef struct _EXRAttribute {

char *name;

char *type;

int size;

unsigned char *value; // uint8_t*

} EXRAttribute;

typedef struct _EXRImage {

// Custom attributes(exludes required attributes(e.g. `channels`,

// `compression`, etc)

EXRAttribute custom_attributes[TINYEXR_MAX_ATTRIBUTES];

int num_custom_attributes;

int num_channels;

const char **channel_names;

unsigned char **images; // image[channels][pixels]

int *pixel_types; // Loaded pixel type(TINYEXR_PIXELTYPE_*) of `images` for

// each channel

int *requested_pixel_types; // Filled initially by

// ParseEXRHeaderFrom(Meomory|File), then users

// can edit it(only valid for HALF pixel type

// channel)

int width;

int height;

float pixel_aspect_ratio;

int compression; // compression type(TINYEXR_COMPRESSIONTYPE_*)

int line_order;

int data_window[4];

int display_window[4];

float screen_window_center[2];

float screen_window_width;

} EXRImage;

typedef struct _DeepImage {

int num_channels;

const char **channel_names;

float ***image; // image[channels][scanlines][samples]

int **offset_table; // offset_table[scanline][offsets]

int width;

int height;

} DeepImage;

// @deprecated { to be removed. }

// Loads single-frame OpenEXR image. Assume EXR image contains RGB(A) channels.

// Application must free image data as returned by `out_rgba`

// Result image format is: float x RGBA x width x hight

// Return 0 if success

// Returns error string in `err` when there's an error

extern int LoadEXR(float **out_rgba, int *width, int *height,

const char *filename, const char **err);

// Parse single-frame OpenEXR header from a file and initialize `EXRImage`

// struct.

// Users then call LoadMultiChannelEXRFromFile to actually load image data into

// `EXRImage`

extern int ParseMultiChannelEXRHeaderFromFile(EXRImage *image,

const char *filename,

const char **err);

// Parse single-frame OpenEXR header from a memory and initialize `EXRImage`

// struct.

// Users then call LoadMultiChannelEXRFromMemory to actually load image data

// into `EXRImage`

extern int ParseMultiChannelEXRHeaderFromMemory(EXRImage *image,

const unsigned char *memory,

const char **err);

// Loads multi-channel, single-frame OpenEXR image from a file.

// Application must setup `ParseMultiChannelEXRHeaderFromFile` before calling

// `LoadMultiChannelEXRFromFile`.

// Application can free EXRImage using `FreeExrImage`

// Return 0 if success

// Returns error string in `err` when there's an error

extern int LoadMultiChannelEXRFromFile(EXRImage *image, const char *filename,

const char **err);

// Loads multi-channel, single-frame OpenEXR image from a memory.

// Application must setup `EXRImage` with `ParseMultiChannelEXRHeaderFromMemory`

// before calling `LoadMultiChannelEXRFromMemory`.

// Application can free EXRImage using `FreeExrImage`

// Return 0 if success

// Returns error string in `err` when there's an error

extern int LoadMultiChannelEXRFromMemory(EXRImage *image,

const unsigned char *memory,

const char **err);

// Saves floating point RGBA image as OpenEXR.

// Image is compressed using EXRImage.compression value.

// Return 0 if success

// Returns error string in `err` when there's an error

// extern int SaveEXR(const float *in_rgba, int width, int height,

// const char *filename, const char **err);

// Saves multi-channel, single-frame OpenEXR image to a file.

// `compression_type` is one of TINYEXR_COMPRESSIONTYPE_*.

// Returns 0 if success

// Returns error string in `err` when there's an error

extern int SaveMultiChannelEXRToFile(const EXRImage *image,

const char *filename, const char **err);

// Saves multi-channel, single-frame OpenEXR image to a memory.

// Image is compressed using EXRImage.compression value.

// Return the number of bytes if succes.

// Returns 0 if success, negative number when failed.

// Returns error string in `err` when there's an error

extern size_t SaveMultiChannelEXRToMemory(const EXRImage *image,

unsigned char **memory,

const char **err);

// Loads single-frame OpenEXR deep image.

// Application must free memory of variables in DeepImage(image, offset_table)

// Returns 0 if success

// Returns error string in `err` when there's an error

extern int LoadDeepEXR(DeepImage *out_image, const char *filename,

const char **err);

// NOT YET IMPLEMENTED:

// Saves single-frame OpenEXR deep image.

// Return 0 if success

// Returns error string in `err` when there's an error

// extern int SaveDeepEXR(const DeepImage *in_image, const char *filename,

// const char **err);

// NOT YET IMPLEMENTED:

// Loads multi-part OpenEXR deep image.

// Application must free memory of variables in DeepImage(image, offset_table)

// extern int LoadMultiPartDeepEXR(DeepImage **out_image, int num_parts, const

// char *filename,

// const char **err);

// Initialize of EXRImage struct

extern void InitEXRImage(EXRImage *exrImage);

// Free's internal data of EXRImage struct

// Returns 0 if success.

extern int FreeEXRImage(EXRImage *exrImage);

// For emscripten.

// Parse single-frame OpenEXR header from memory.

// Return 0 if success

extern int ParseEXRHeaderFromMemory(EXRAttribute *customAttributes,

int *numCustomAttributes, int *width,

int *height, const unsigned char *memory);

// For emscripten.

// Loads single-frame OpenEXR image from memory. Assume EXR image contains

// RGB(A) channels.

// `out_rgba` must have enough memory(at least sizeof(float) x 4(RGBA) x width x

// hight)

// Return 0 if success

// Returns error string in `err` when there's an error

extern int LoadEXRFromMemory(float *out_rgba, const unsigned char *memory,

const char **err);

#ifdef __cplusplus

}

#endif

#ifdef TINYEXR_IMPLEMENTATION

#include <cstdio>

#include <cstdlib>

#include <cassert>

#include <cstring>

#include <algorithm>

#include <string>

#include <vector>

#include "tinyexr.h"

#ifdef _OPENMP

#include <omp.h>

#endif

namespace {

namespace miniz {

/* miniz.c v1.15 - public domain deflate/inflate, zlib-subset, ZIP

reading/writing/appending, PNG writing

See "unlicense" statement at the end of this file.

Rich Geldreich <richgel99@gmail.com>, last updated Oct. 13, 2013

Implements RFC 1950: http://www.ietf.org/rfc/rfc1950.txt and RFC 1951:

http://www.ietf.org/rfc/rfc1951.txt

Most API's defined in miniz.c are optional. For example, to disable the

archive related functions just define

MINIZ_NO_ARCHIVE_APIS, or to get rid of all stdio usage define MINIZ_NO_STDIO

(see the list below for more macros).

* Change History

10/13/13 v1.15 r4 - Interim bugfix release while I work on the next major

release with Zip64 support (almost there!):

- Critical fix for the MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY bug

(thanks kahmyong.moon@hp.com) which could cause locate files to not find

files. This bug

would only have occured in earlier versions if you explicitly used this

flag, OR if you used mz_zip_extract_archive_file_to_heap() or

mz_zip_add_mem_to_archive_file_in_place()

(which used this flag). If you can't switch to v1.15 but want to fix

this bug, just remove the uses of this flag from both helper funcs (and of

course don't use the flag).

- Bugfix in mz_zip_reader_extract_to_mem_no_alloc() from kymoon when

pUser_read_buf is not NULL and compressed size is > uncompressed size

- Fixing mz_zip_reader_extract_*() funcs so they don't try to extract

compressed data from directory entries, to account for weird zipfiles which

contain zero-size compressed data on dir entries.

Hopefully this fix won't cause any issues on weird zip archives,

because it assumes the low 16-bits of zip external attributes are DOS

attributes (which I believe they always are in practice).

- Fixing mz_zip_reader_is_file_a_directory() so it doesn't check the

internal attributes, just the filename and external attributes

- mz_zip_reader_init_file() - missing MZ_FCLOSE() call if the seek failed

- Added cmake support for Linux builds which builds all the examples,

tested with clang v3.3 and gcc v4.6.

- Clang fix for tdefl_write_image_to_png_file_in_memory() from toffaletti

- Merged MZ_FORCEINLINE fix from hdeanclark

- Fix <time.h> include before config #ifdef, thanks emil.brink

- Added tdefl_write_image_to_png_file_in_memory_ex(): supports Y flipping

(super useful for OpenGL apps), and explicit control over the compression

level (so you can

set it to 1 for real-time compression).

- Merged in some compiler fixes from paulharris's github repro.

- Retested this build under Windows (VS 2010, including static analysis),

tcc 0.9.26, gcc v4.6 and clang v3.3.

- Added example6.c, which dumps an image of the mandelbrot set to a PNG

file.

- Modified example2 to help test the

MZ_ZIP_FLAG_DO_NOT_SORT_CENTRAL_DIRECTORY flag more.

- In r3: Bugfix to mz_zip_writer_add_file() found during merge: Fix

possible src file fclose() leak if alignment bytes+local header file write

faiiled

- In r4: Minor bugfix to mz_zip_writer_add_from_zip_reader():

Was pushing the wrong central dir header offset, appears harmless in this

release, but it became a problem in the zip64 branch

5/20/12 v1.14 - MinGW32/64 GCC 4.6.1 compiler fixes: added MZ_FORCEINLINE,

#include <time.h> (thanks fermtect).

5/19/12 v1.13 - From jason@cornsyrup.org and kelwert@mtu.edu - Fix

mz_crc32() so it doesn't compute the wrong CRC-32's when mz_ulong is 64-bit.

- Temporarily/locally slammed in "typedef unsigned long mz_ulong" and

re-ran a randomized regression test on ~500k files.

- Eliminated a bunch of warnings when compiling with GCC 32-bit/64.

- Ran all examples, miniz.c, and tinfl.c through MSVC 2008's /analyze

(static analysis) option and fixed all warnings (except for the silly

"Use of the comma-operator in a tested expression.." analysis warning,

which I purposely use to work around a MSVC compiler warning).

- Created 32-bit and 64-bit Codeblocks projects/workspace. Built and

tested Linux executables. The codeblocks workspace is compatible with

Linux+Win32/x64.

- Added miniz_tester solution/project, which is a useful little app

derived from LZHAM's tester app that I use as part of the regression test.

- Ran miniz.c and tinfl.c through another series of regression testing on

~500,000 files and archives.

- Modified example5.c so it purposely disables a bunch of high-level

functionality (MINIZ_NO_STDIO, etc.). (Thanks to corysama for the

MINIZ_NO_STDIO bug report.)

- Fix ftell() usage in examples so they exit with an error on files which

are too large (a limitation of the examples, not miniz itself).

4/12/12 v1.12 - More comments, added low-level example5.c, fixed a couple

minor level_and_flags issues in the archive API's.

level_and_flags can now be set to MZ_DEFAULT_COMPRESSION. Thanks to Bruce

Dawson <bruced@valvesoftware.com> for the feedback/bug report.

5/28/11 v1.11 - Added statement from unlicense.org

5/27/11 v1.10 - Substantial compressor optimizations:

- Level 1 is now ~4x faster than before. The L1 compressor's throughput

now varies between 70-110MB/sec. on a

- Core i7 (actual throughput varies depending on the type of data, and x64

vs. x86).

- Improved baseline L2-L9 compression perf. Also, greatly improved

compression perf. issues on some file types.

- Refactored the compression code for better readability and

maintainability.

- Added level 10 compression level (L10 has slightly better ratio than

level 9, but could have a potentially large

drop in throughput on some files).

5/15/11 v1.09 - Initial stable release.

* Low-level Deflate/Inflate implementation notes:

Compression: Use the "tdefl" API's. The compressor supports raw, static,

and dynamic blocks, lazy or

greedy parsing, match length filtering, RLE-only, and Huffman-only streams.

It performs and compresses

approximately as well as zlib.

Decompression: Use the "tinfl" API's. The entire decompressor is

implemented as a single function

coroutine: see tinfl_decompress(). It supports decompression into a 32KB

(or larger power of 2) wrapping buffer, or into a memory

block large enough to hold the entire file.

The low-level tdefl/tinfl API's do not make any use of dynamic memory

allocation.

* zlib-style API notes:

miniz.c implements a fairly large subset of zlib. There's enough

functionality present for it to be a drop-in

zlib replacement in many apps:

The z_stream struct, optional memory allocation callbacks

deflateInit/deflateInit2/deflate/deflateReset/deflateEnd/deflateBound

inflateInit/inflateInit2/inflate/inflateEnd

compress, compress2, compressBound, uncompress

CRC-32, Adler-32 - Using modern, minimal code size, CPU cache friendly

routines.

Supports raw deflate streams or standard zlib streams with adler-32

checking.

Limitations:

The callback API's are not implemented yet. No support for gzip headers or

zlib static dictionaries.

I've tried to closely emulate zlib's various flavors of stream flushing

and return status codes, but

there are no guarantees that miniz.c pulls this off perfectly.

* PNG writing: See the tdefl_write_image_to_png_file_in_memory() function,

originally written by

Alex Evans. Supports 1-4 bytes/pixel images.

* ZIP archive API notes:

The ZIP archive API's where designed with simplicity and efficiency in

mind, with just enough abstraction to

get the job done with minimal fuss. There are simple API's to retrieve file

information, read files from

existing archives, create new archives, append new files to existing

archives, or clone archive data from

one archive to another. It supports archives located in memory or the heap,

on disk (using stdio.h),

or you can specify custom file read/write callbacks.

- Archive reading: Just call this function to read a single file from a

disk archive:

void *mz_zip_extract_archive_file_to_heap(const char *pZip_filename, const

char *pArchive_name,

size_t *pSize, mz_uint zip_flags);

For more complex cases, use the "mz_zip_reader" functions. Upon opening an

archive, the entire central

directory is located and read as-is into memory, and subsequent file access

only occurs when reading individual files.

- Archives file scanning: The simple way is to use this function to scan a

loaded archive for a specific file:

int mz_zip_reader_locate_file(mz_zip_archive *pZip, const char *pName,

const char *pComment, mz_uint flags);

The locate operation can optionally check file comments too, which (as one

example) can be used to identify

multiple versions of the same file in an archive. This function uses a

simple linear search through the central

directory, so it's not very fast.

Alternately, you can iterate through all the files in an archive (using

mz_zip_reader_get_num_files()) and

retrieve detailed info on each file by calling mz_zip_reader_file_stat().

- Archive creation: Use the "mz_zip_writer" functions. The ZIP writer

immediately writes compressed file data

to disk and builds an exact image of the central directory in memory. The

central directory image is written

all at once at the end of the archive file when the archive is finalized.

The archive writer can optionally align each file's local header and file

data to any power of 2 alignment,

which can be useful when the archive will be read from optical media. Also,

the writer supports placing

arbitrary data blobs at the very beginning of ZIP archives. Archives

written using either feature are still

readable by any ZIP tool.

- Archive appending: The simple way to add a single file to an archive is

to call this function:

mz_bool mz_zip_add_mem_to_archive_file_in_place(const char *pZip_filename,

const char *pArchive_name,

const void *pBuf, size_t buf_size, const void *pComment, mz_uint16

comment_size, mz_uint level_and_flags);

The archive will be created if it doesn't already exist, otherwise it'll be

appended to.

Note the appending is done in-place and is not an atomic operation, so if

something goes wrong

during the operation it's possible the archive could be left without a

central directory (although the local

file headers and file data will be fine, so the archive will be

recoverable).

For more complex archive modification scenarios:

1. The safest way is to use a mz_zip_reader to read the existing archive,

cloning only those bits you want to

preserve into a new archive using using the

mz_zip_writer_add_from_zip_reader() function (which compiles the

compressed file data as-is). When you're done, delete the old archive and

rename the newly written archive, and

you're done. This is safe but requires a bunch of temporary disk space or

heap memory.

2. Or, you can convert an mz_zip_reader in-place to an mz_zip_writer using

mz_zip_writer_init_from_reader(),

append new files as needed, then finalize the archive which will write an

updated central directory to the

original archive. (This is basically what

mz_zip_add_mem_to_archive_file_in_place() does.) There's a

possibility that the archive's central directory could be lost with this

method if anything goes wrong, though.

- ZIP archive support limitations:

No zip64 or spanning support. Extraction functions can only handle

unencrypted, stored or deflated files.

Requires streams capable of seeking.

* This is a header file library, like stb_image.c. To get only a header file,

either cut and paste the

below header, or create miniz.h, #define MINIZ_HEADER_FILE_ONLY, and then

include miniz.c from it.

* Important: For best perf. be sure to customize the below macros for your

target platform:

#define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1

#define MINIZ_LITTLE_ENDIAN 1

#define MINIZ_HAS_64BIT_REGISTERS 1

* On platforms using glibc, Be sure to "#define _LARGEFILE64_SOURCE 1" before

including miniz.c to ensure miniz

uses the 64-bit variants: fopen64(), stat64(), etc. Otherwise you won't be

able to process large files

(i.e. 32-bit stat() fails for me on files > 0x7FFFFFFF bytes).

*/

#ifndef MINIZ_HEADER_INCLUDED

#define MINIZ_HEADER_INCLUDED

#include <stdlib.h>

// Defines to completely disable specific portions of miniz.c:

// If all macros here are defined the only functionality remaining will be

// CRC-32, adler-32, tinfl, and tdefl.

// Define MINIZ_NO_STDIO to disable all usage and any functions which rely on

// stdio for file I/O.

//#define MINIZ_NO_STDIO

// If MINIZ_NO_TIME is specified then the ZIP archive functions will not be able

// to get the current time, or

// get/set file times, and the C run-time funcs that get/set times won't be

// called.

// The current downside is the times written to your archives will be from 1979.

//#define MINIZ_NO_TIME

// Define MINIZ_NO_ARCHIVE_APIS to disable all ZIP archive API's.

//#define MINIZ_NO_ARCHIVE_APIS

// Define MINIZ_NO_ARCHIVE_APIS to disable all writing related ZIP archive

// API's.

//#define MINIZ_NO_ARCHIVE_WRITING_APIS

// Define MINIZ_NO_ZLIB_APIS to remove all ZLIB-style compression/decompression

// API's.

//#define MINIZ_NO_ZLIB_APIS

// Define MINIZ_NO_ZLIB_COMPATIBLE_NAME to disable zlib names, to prevent

// conflicts against stock zlib.

//#define MINIZ_NO_ZLIB_COMPATIBLE_NAMES

// Define MINIZ_NO_MALLOC to disable all calls to malloc, free, and realloc.

// Note if MINIZ_NO_MALLOC is defined then the user must always provide custom

// user alloc/free/realloc

// callbacks to the zlib and archive API's, and a few stand-alone helper API's

// which don't provide custom user

// functions (such as tdefl_compress_mem_to_heap() and

// tinfl_decompress_mem_to_heap()) won't work.

//#define MINIZ_NO_MALLOC

#if defined(__TINYC__) && (defined(__linux) || defined(__linux__))

// TODO: Work around "error: include file 'sys\utime.h' when compiling with tcc

// on Linux

#define MINIZ_NO_TIME

#endif

#if !defined(MINIZ_NO_TIME) && !defined(MINIZ_NO_ARCHIVE_APIS)

#include <time.h>

#endif

#if defined(_M_IX86) || defined(_M_X64) || defined(__i386__) || \

defined(__i386) || defined(__i486__) || defined(__i486) || \

defined(i386) || defined(__ia64__) || defined(__x86_64__)

// MINIZ_X86_OR_X64_CPU is only used to help set the below macros.

#define MINIZ_X86_OR_X64_CPU 1

#endif

#if defined(__sparcv9)

// Big endian

#else

#if (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) || MINIZ_X86_OR_X64_CPU

// Set MINIZ_LITTLE_ENDIAN to 1 if the processor is little endian.

#define MINIZ_LITTLE_ENDIAN 1

#endif

#endif

#if MINIZ_X86_OR_X64_CPU

// Set MINIZ_USE_UNALIGNED_LOADS_AND_STORES to 1 on CPU's that permit efficient

// integer loads and stores from unaligned addresses.

//#define MINIZ_USE_UNALIGNED_LOADS_AND_STORES 1

#define MINIZ_USE_UNALIGNED_LOADS_AND_STORES \

0 // disable to suppress compiler warnings

#endif

#if defined(_M_X64) || defined(_WIN64) || defined(__MINGW64__) || \

defined(_LP64) || defined(__LP64__) || defined(__ia64__) || \

defined(__x86_64__)

// Set MINIZ_HAS_64BIT_REGISTERS to 1 if operations on 64-bit integers are

// reasonably fast (and don't involve compiler generated calls to helper

// functions).

#define MINIZ_HAS_64BIT_REGISTERS 1

#endif

#ifdef __cplusplus

extern "C" {

#endif

// ------------------- zlib-style API Definitions.

// For more compatibility with zlib, miniz.c uses unsigned long for some

// parameters/struct members. Beware: mz_ulong can be either 32 or 64-bits!

typedef unsigned long mz_ulong;

// mz_free() internally uses the MZ_FREE() macro (which by default calls free()

// unless you've modified the MZ_MALLOC macro) to release a block allocated from

// the heap.

void mz_free(void *p);

#define MZ_ADLER32_INIT (1)

// mz_adler32() returns the initial adler-32 value to use when called with

// ptr==NULL.

mz_ulong mz_adler32(mz_ulong adler, const unsigned char *ptr, size_t buf_len);

#define MZ_CRC32_INIT (0)

// mz_crc32() returns the initial CRC-32 value to use when called with

// ptr==NULL.

mz_ulong mz_crc32(mz_ulong crc, const unsigned char *ptr, size_t buf_len);

// Compression strategies.

enum {

MZ_DEFAULT_STRATEGY = 0,

MZ_FILTERED = 1,

MZ_HUFFMAN_ONLY = 2,

MZ_RLE = 3,

MZ_FIXED = 4

};

// Method

#define MZ_DEFLATED 8

#ifndef MINIZ_NO_ZLIB_APIS

// Heap allocation callbacks.

// Note that mz_alloc_func parameter types purpsosely differ from zlib's:

// items/size is size_t, not unsigned long.

typedef void *(*mz_alloc_func)(void *opaque, size_t items, size_t size);

typedef void (*mz_free_func)(void *opaque, void *address);

typedef void *(*mz_realloc_func)(void *opaque, void *address, size_t items,

size_t size);

#define MZ_VERSION "9.1.15"

#define MZ_VERNUM 0x91F0

#define MZ_VER_MAJOR 9

#define MZ_VER_MINOR 1

#define MZ_VER_REVISION 15

#define MZ_VER_SUBREVISION 0

// Flush values. For typical usage you only need MZ_NO_FLUSH and MZ_FINISH. The

// other values are for advanced use (refer to the zlib docs).

enum {

MZ_NO_FLUSH = 0,

MZ_PARTIAL_FLUSH = 1,

MZ_SYNC_FLUSH = 2,

MZ_FULL_FLUSH = 3,

MZ_FINISH = 4,

MZ_BLOCK = 5

};

// Return status codes. MZ_PARAM_ERROR is non-standard.

enum {

MZ_OK = 0,

MZ_STREAM_END = 1,

MZ_NEED_DICT = 2,

MZ_ERRNO = -1,

MZ_STREAM_ERROR = -2,

MZ_DATA_ERROR = -3,

MZ_MEM_ERROR = -4,

MZ_BUF_ERROR = -5,

MZ_VERSION_ERROR = -6,

MZ_PARAM_ERROR = -10000

};

// Compression levels: 0-9 are the standard zlib-style levels, 10 is best

// possible compression (not zlib compatible, and may be very slow),

// MZ_DEFAULT_COMPRESSION=MZ_DEFAULT_LEVEL.

enum {

MZ_NO_COMPRESSION = 0,

MZ_BEST_SPEED = 1,

MZ_BEST_COMPRESSION = 9,

MZ_UBER_COMPRESSION = 10,

MZ_DEFAULT_LEVEL = 6,

MZ_DEFAULT_COMPRESSION = -1

};

// Window bits

#define MZ_DEFAULT_WINDOW_BITS 15

struct mz_internal_state;

// Compression/decompression stream struct.

typedef struct mz_stream_s {

const unsigned char *next_in; // pointer to next byte to read

unsigned int avail_in; // number of bytes available at next_in

mz_ulong total_in; // total number of bytes consumed so far

unsigned char *next_out; // pointer to next byte to write

unsigned int avail_out; // number of bytes that can be written to next_out

mz_ulong total_out; // total number of bytes produced so far

char *msg; // error msg (unused)

struct mz_internal_state *state; // internal state, allocated by zalloc/zfree

mz_alloc_func

zalloc; // optional heap allocation function (defaults to malloc)

mz_free_func zfree; // optional heap free function (defaults to free)

void *opaque; // heap alloc function user pointer

int data_type; // data_type (unused)

mz_ulong adler; // adler32 of the source or uncompressed data

mz_ulong reserved; // not used

} mz_stream;

typedef mz_stream *mz_streamp;

// Returns the version string of miniz.c.

const char *mz_version(void);

// mz_deflateInit() initializes a compressor with default options:

// Parameters:

// pStream must point to an initialized mz_stream struct.

// level must be between [MZ_NO_COMPRESSION, MZ_BEST_COMPRESSION].

// level 1 enables a specially optimized compression function that's been

// optimized purely for performance, not ratio.

// (This special func. is currently only enabled when

// MINIZ_USE_UNALIGNED_LOADS_AND_STORES and MINIZ_LITTLE_ENDIAN are defined.)

// Return values:

// MZ_OK on success.

// MZ_STREAM_ERROR if the stream is bogus.

// MZ_PARAM_ERROR if the input parameters are bogus.

// MZ_MEM_ERROR on out of memory.

int mz_deflateInit(mz_streamp pStream, int level);

// mz_deflateInit2() is like mz_deflate(), except with more control:

// Additional parameters:

// method must be MZ_DEFLATED

// window_bits must be MZ_DEFAULT_WINDOW_BITS (to wrap the deflate stream with

// zlib header/adler-32 footer) or -MZ_DEFAULT_WINDOW_BITS (raw deflate/no

// header or footer)

// mem_level must be between [1, 9] (it's checked but ignored by miniz.c)

int mz_deflateInit2(mz_streamp pStream, int level, int method, int window_bits,

int mem_level, int strategy);

// Quickly resets a compressor without having to reallocate anything. Same as

// calling mz_deflateEnd() followed by mz_deflateInit()/mz_deflateInit2().

int mz_deflateReset(mz_streamp pStream);

// mz_deflate() compresses the input to output, consuming as much of the input

// and producing as much output as possible.

// Parameters:

// pStream is the stream to read from and write to. You must initialize/update

// the next_in, avail_in, next_out, and avail_out members.

// flush may be MZ_NO_FLUSH, MZ_PARTIAL_FLUSH/MZ_SYNC_FLUSH, MZ_FULL_FLUSH, or

// MZ_FINISH.

// Return values:

// MZ_OK on success (when flushing, or if more input is needed but not

// available, and/or there's more output to be written but the output buffer

// is full).

// MZ_STREAM_END if all input has been consumed and all output bytes have been

// written. Don't call mz_deflate() on the stream anymore.

// MZ_STREAM_ERROR if the stream is bogus.

// MZ_PARAM_ERROR if one of the parameters is invalid.

// MZ_BUF_ERROR if no forward progress is possible because the input and/or

// output buffers are empty. (Fill up the input buffer or free up some output

// space and try again.)

int mz_deflate(mz_streamp pStream, int flush);

// mz_deflateEnd() deinitializes a compressor:

// Return values:

// MZ_OK on success.

// MZ_STREAM_ERROR if the stream is bogus.

int mz_deflateEnd(mz_streamp pStream);

// mz_deflateBound() returns a (very) conservative upper bound on the amount of

// data that could be generated by deflate(), assuming flush is set to only

// MZ_NO_FLUSH or MZ_FINISH.

mz_ulong mz_deflateBound(mz_streamp pStream, mz_ulong source_len);

// Single-call compression functions mz_compress() and mz_compress2():

// Returns MZ_OK on success, or one of the error codes from mz_deflate() on

// failure.

int mz_compress(unsigned char *pDest, mz_ulong *pDest_len,

const unsigned char *pSource, mz_ulong source_len);

int mz_compress2(unsigned char *pDest, mz_ulong *pDest_len,

const unsigned char *pSource, mz_ulong source_len, int level);

// mz_compressBound() returns a (very) conservative upper bound on the amount of

// data that could be generated by calling mz_compress().

mz_ulong mz_compressBound(mz_ulong source_len);

// Initializes a decompressor.

int mz_inflateInit(mz_streamp pStream);

// mz_inflateInit2() is like mz_inflateInit() with an additional option that

// controls the window size and whether or not the stream has been wrapped with

// a zlib header/footer:

// window_bits must be MZ_DEFAULT_WINDOW_BITS (to parse zlib header/footer) or

// -MZ_DEFAULT_WINDOW_BITS (raw deflate).

int mz_inflateInit2(mz_streamp pStream, int window_bits);

// Decompresses the input stream to the output, consuming only as much of the

// input as needed, and writing as much to the output as possible.

// Parameters:

// pStream is the stream to read from and write to. You must initialize/update

// the next_in, avail_in, next_out, and avail_out members.

// flush may be MZ_NO_FLUSH, MZ_SYNC_FLUSH, or MZ_FINISH.

// On the first call, if flush is MZ_FINISH it's assumed the input and output

// buffers are both sized large enough to decompress the entire stream in a

// single call (this is slightly faster).

// MZ_FINISH implies that there are no more source bytes available beside

// what's already in the input buffer, and that the output buffer is large

// enough to hold the rest of the decompressed data.

// Return values:

// MZ_OK on success. Either more input is needed but not available, and/or

// there's more output to be written but the output buffer is full.

// MZ_STREAM_END if all needed input has been consumed and all output bytes

// have been written. For zlib streams, the adler-32 of the decompressed data

// has also been verified.

// MZ_STREAM_ERROR if the stream is bogus.

// MZ_DATA_ERROR if the deflate stream is invalid.

// MZ_PARAM_ERROR if one of the parameters is invalid.

// MZ_BUF_ERROR if no forward progress is possible because the input buffer is

// empty but the inflater needs more input to continue, or if the output

// buffer is not large enough. Call mz_inflate() again

// with more input data, or with more room in the output buffer (except when

// using single call decompression, described above).

int mz_inflate(mz_streamp pStream, int flush);

// Deinitializes a decompressor.

int mz_inflateEnd(mz_streamp pStream);

// Single-call decompression.

// Returns MZ_OK on success, or one of the error codes from mz_inflate() on

// failure.

int mz_uncompress(unsigned char *pDest, mz_ulong *pDest_len,

const unsigned char *pSource, mz_ulong source_len);

// Returns a string description of the specified error code, or NULL if the

// error code is invalid.

const char *mz_error(int err);

// Redefine zlib-compatible names to miniz equivalents, so miniz.c can be used

// as a drop-in replacement for the subset of zlib that miniz.c supports.

// Define MINIZ_NO_ZLIB_COMPATIBLE_NAMES to disable zlib-compatibility if you

// use zlib in the same project.

#ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES

typedef unsigned char Byte;

typedef unsigned int uInt;

typedef mz_ulong uLong;

typedef Byte Bytef;

typedef uInt uIntf;

typedef char charf;

typedef int intf;

typedef void *voidpf;

typedef uLong uLongf;

typedef void *voidp;

typedef void *const voidpc;

#define Z_NULL 0

#define Z_NO_FLUSH MZ_NO_FLUSH

#define Z_PARTIAL_FLUSH MZ_PARTIAL_FLUSH

#define Z_SYNC_FLUSH MZ_SYNC_FLUSH

#define Z_FULL_FLUSH MZ_FULL_FLUSH

#define Z_FINISH MZ_FINISH

#define Z_BLOCK MZ_BLOCK

#define Z_OK MZ_OK

#define Z_STREAM_END MZ_STREAM_END

#define Z_NEED_DICT MZ_NEED_DICT

#define Z_ERRNO MZ_ERRNO

#define Z_STREAM_ERROR MZ_STREAM_ERROR

#define Z_DATA_ERROR MZ_DATA_ERROR

#define Z_MEM_ERROR MZ_MEM_ERROR

#define Z_BUF_ERROR MZ_BUF_ERROR

#define Z_VERSION_ERROR MZ_VERSION_ERROR

#define Z_PARAM_ERROR MZ_PARAM_ERROR

#define Z_NO_COMPRESSION MZ_NO_COMPRESSION

#define Z_BEST_SPEED MZ_BEST_SPEED

#define Z_BEST_COMPRESSION MZ_BEST_COMPRESSION

#define Z_DEFAULT_COMPRESSION MZ_DEFAULT_COMPRESSION

#define Z_DEFAULT_STRATEGY MZ_DEFAULT_STRATEGY

#define Z_FILTERED MZ_FILTERED

#define Z_HUFFMAN_ONLY MZ_HUFFMAN_ONLY

#define Z_RLE MZ_RLE

#define Z_FIXED MZ_FIXED

#define Z_DEFLATED MZ_DEFLATED

#define Z_DEFAULT_WINDOW_BITS MZ_DEFAULT_WINDOW_BITS

#define alloc_func mz_alloc_func

#define free_func mz_free_func

#define internal_state mz_internal_state

#define z_stream mz_stream

#define deflateInit mz_deflateInit

#define deflateInit2 mz_deflateInit2

#define deflateReset mz_deflateReset

#define deflate mz_deflate

#define deflateEnd mz_deflateEnd

#define deflateBound mz_deflateBound

#define compress mz_compress

#define compress2 mz_compress2

#define compressBound mz_compressBound

#define inflateInit mz_inflateInit

#define inflateInit2 mz_inflateInit2

#define inflate mz_inflate

#define inflateEnd mz_inflateEnd

#define uncompress mz_uncompress

#define crc32 mz_crc32

#define adler32 mz_adler32

#define MAX_WBITS 15

#define MAX_MEM_LEVEL 9

#define zError mz_error

#define ZLIB_VERSION MZ_VERSION

#define ZLIB_VERNUM MZ_VERNUM

#define ZLIB_VER_MAJOR MZ_VER_MAJOR

#define ZLIB_VER_MINOR MZ_VER_MINOR

#define ZLIB_VER_REVISION MZ_VER_REVISION

#define ZLIB_VER_SUBREVISION MZ_VER_SUBREVISION

#define zlibVersion mz_version

#define zlib_version mz_version()

#endif // #ifndef MINIZ_NO_ZLIB_COMPATIBLE_NAMES

#endif // MINIZ_NO_ZLIB_APIS

// ------------------- Types and macros

typedef unsigned char mz_uint8;

typedef signed short mz_int16;

typedef unsigned short mz_uint16;

typedef unsigned int mz_uint32;

typedef unsigned int mz_uint;

typedef long long mz_int64;

typedef unsigned long long mz_uint64;

typedef int mz_bool;

#define MZ_FALSE (0)

#define MZ_TRUE (1)

// An attempt to work around MSVC's spammy "warning C4127: conditional

// expression is constant" message.

#ifdef _MSC_VER

#define MZ_MACRO_END while (0, 0)

#else

#define MZ_MACRO_END while (0)

#endif

// ------------------- ZIP archive reading/writing

#ifndef MINIZ_NO_ARCHIVE_APIS

enum {

MZ_ZIP_MAX_IO_BUF_SIZE = 64 * 1024,

MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE = 260,

MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE = 256

};

typedef struct {

mz_uint32 m_file_index;

mz_uint32 m_central_dir_ofs;

mz_uint16 m_version_made_by;

mz_uint16 m_version_needed;

mz_uint16 m_bit_flag;

mz_uint16 m_method;

#ifndef MINIZ_NO_TIME

time_t m_time;

#endif

mz_uint32 m_crc32;

mz_uint64 m_comp_size;

mz_uint64 m_uncomp_size;

mz_uint16 m_internal_attr;

mz_uint32 m_external_attr;

mz_uint64 m_local_header_ofs;

mz_uint32 m_comment_size;

char m_filename[MZ_ZIP_MAX_ARCHIVE_FILENAME_SIZE];

char m_comment[MZ_ZIP_MAX_ARCHIVE_FILE_COMMENT_SIZE];

} mz_zip_archive_file_stat;

typedef size_t (*mz_file_read_func)(void *pOpaque, mz_uint64 file_ofs,

void *pBuf, size_t n);

typedef size_t (*mz_file_write_func)(void *pOpaque, mz_uint64 file_ofs,

const void *pBuf, size_t n);

struct mz_zip_internal_state_tag;

typedef struct mz_zip_internal_state_tag mz_zip_internal_state;

typedef enum {

MZ_ZIP_MODE_INVALID = 0,

MZ_ZIP_MODE_READING = 1,

MZ_ZIP_MODE_WRITING = 2,

MZ_ZIP_MODE_WRITING_HAS_BEEN_FINALIZED = 3

} mz_zip_mode;

typedef struct mz_zip_archive_tag {

mz_uint64 m_archive_size;

mz_uint64 m_central_directory_file_ofs;

mz_uint m_total_files;

mz_zip_mode m_zip_mode;

mz_uint m_file_offset_alignment;

mz_alloc_func m_pAlloc;

mz_free_func m_pFree;

mz_realloc_func m_pRealloc;

void *m_pAlloc_opaque;

mz_file_read_func m_pRead;

mz_file_write_func m_pWrite;

void *m_pIO_opaque;

mz_zip_internal_state *m_pState;

} mz_zip_archive;