mirror of https://github.com/PCSX2/pcsx2.git
3rdparty: Move libchdr in-tree
Based on 54bfb87 with modifications from DuckStation.
This commit is contained in:
Stenzek
Connor McLaughlin
parent
8ccd442647
commit
2148d3d3ab
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@ -7,9 +7,6 @@
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[submodule "3rdparty/fmt/fmt"]
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path = 3rdparty/fmt/fmt
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url = https://github.com/fmtlib/fmt.git
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[submodule "3rdparty/libchdr/libchdr"]
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path = 3rdparty/libchdr/libchdr
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url = https://github.com/rtissera/libchdr.git
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[submodule "3rdparty/wil"]
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path = 3rdparty/wil
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url = https://github.com/microsoft/wil.git
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@ -1,11 +1,19 @@
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add_library(chdr-static STATIC
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libchdr/src/libchdr_bitstream.c
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libchdr/src/libchdr_cdrom.c
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libchdr/src/libchdr_chd.c
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libchdr/src/libchdr_flac.c
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libchdr/src/libchdr_huffman.c
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add_library(libchdr
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include/dr_libs/dr_flac.h
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include/libchdr/bitstream.h
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include/libchdr/cdrom.h
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include/libchdr/chd.h
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include/libchdr/chdconfig.h
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include/libchdr/coretypes.h
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include/libchdr/flac.h
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include/libchdr/huffman.h
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src/libchdr_bitstream.c
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src/libchdr_cdrom.c
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src/libchdr_chd.c
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src/libchdr_flac.c
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src/libchdr_huffman.c
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)
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target_include_directories(chdr-static PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/libchdr/include")
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target_link_libraries(chdr-static PRIVATE ZLIB::ZLIB LZMA::LZMA)
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target_compile_options(chdr-static PRIVATE "-w")
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target_include_directories(libchdr PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/include")
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target_link_libraries(libchdr PRIVATE ZLIB::ZLIB LZMA::LZMA)
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@ -0,0 +1,24 @@
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Copyright Romain Tisserand
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of the <organization> nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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@ -0,0 +1,7 @@
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# libchdr
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libchdr is a standalone library for reading MAME's CHDv1-v5 formats.
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The code is based off of MAME's old C codebase which read up to CHDv4 with OS-dependent features removed, and CHDv5 support backported from MAME's current C++ codebase.
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libchdr is licensed under the BSD 3-Clause (see [LICENSE.txt](LICENSE.txt)) and uses third party libraries that are each distributed under their own terms (see each library's license in [deps/](deps/)).
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File diff suppressed because it is too large
Load Diff
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@ -0,0 +1,43 @@
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/* license:BSD-3-Clause
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* copyright-holders:Aaron Giles
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***************************************************************************
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bitstream.h
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Helper classes for reading/writing at the bit level.
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***************************************************************************/
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#pragma once
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#ifndef __BITSTREAM_H__
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#define __BITSTREAM_H__
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#include <stdint.h>
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/***************************************************************************
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* TYPE DEFINITIONS
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***************************************************************************
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*/
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/* helper class for reading from a bit buffer */
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struct bitstream
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{
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uint32_t buffer; /* current bit accumulator */
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int bits; /* number of bits in the accumulator */
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const uint8_t * read; /* read pointer */
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uint32_t doffset; /* byte offset within the data */
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uint32_t dlength; /* length of the data */
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};
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struct bitstream* create_bitstream(const void *src, uint32_t srclength);
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int bitstream_overflow(struct bitstream* bitstream);
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uint32_t bitstream_read_offset(struct bitstream* bitstream);
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uint32_t bitstream_read(struct bitstream* bitstream, int numbits);
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uint32_t bitstream_peek(struct bitstream* bitstream, int numbits);
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void bitstream_remove(struct bitstream* bitstream, int numbits);
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uint32_t bitstream_flush(struct bitstream* bitstream);
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#endif
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@ -0,0 +1,110 @@
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/* license:BSD-3-Clause
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* copyright-holders:Aaron Giles
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***************************************************************************
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cdrom.h
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Generic MAME cd-rom implementation
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***************************************************************************/
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#pragma once
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#ifndef __CDROM_H__
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#define __CDROM_H__
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#include <stdint.h>
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#include <libchdr/chdconfig.h>
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/***************************************************************************
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CONSTANTS
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***************************************************************************/
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/* tracks are padded to a multiple of this many frames */
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#define CD_TRACK_PADDING (4)
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#define CD_MAX_TRACKS (99) /* AFAIK the theoretical limit */
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#define CD_MAX_SECTOR_DATA (2352)
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#define CD_MAX_SUBCODE_DATA (96)
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#define CD_FRAME_SIZE (CD_MAX_SECTOR_DATA + CD_MAX_SUBCODE_DATA)
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#define CD_FRAMES_PER_HUNK (8)
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#define CD_METADATA_WORDS (1+(CD_MAX_TRACKS * 6))
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enum
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{
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CD_TRACK_MODE1 = 0, /* mode 1 2048 bytes/sector */
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CD_TRACK_MODE1_RAW, /* mode 1 2352 bytes/sector */
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CD_TRACK_MODE2, /* mode 2 2336 bytes/sector */
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CD_TRACK_MODE2_FORM1, /* mode 2 2048 bytes/sector */
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CD_TRACK_MODE2_FORM2, /* mode 2 2324 bytes/sector */
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CD_TRACK_MODE2_FORM_MIX, /* mode 2 2336 bytes/sector */
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CD_TRACK_MODE2_RAW, /* mode 2 2352 bytes / sector */
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CD_TRACK_AUDIO, /* redbook audio track 2352 bytes/sector (588 samples) */
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CD_TRACK_RAW_DONTCARE /* special flag for cdrom_read_data: just return me whatever is there */
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};
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enum
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{
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CD_SUB_NORMAL = 0, /* "cooked" 96 bytes per sector */
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CD_SUB_RAW, /* raw uninterleaved 96 bytes per sector */
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CD_SUB_NONE /* no subcode data stored */
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};
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#define CD_FLAG_GDROM 0x00000001 /* disc is a GD-ROM, all tracks should be stored with GD-ROM metadata */
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#define CD_FLAG_GDROMLE 0x00000002 /* legacy GD-ROM, with little-endian CDDA data */
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/***************************************************************************
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FUNCTION PROTOTYPES
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***************************************************************************/
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#ifdef WANT_RAW_DATA_SECTOR
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/* ECC utilities */
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int ecc_verify(const uint8_t *sector);
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void ecc_generate(uint8_t *sector);
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void ecc_clear(uint8_t *sector);
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#endif
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/***************************************************************************
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INLINE FUNCTIONS
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***************************************************************************/
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static inline uint32_t msf_to_lba(uint32_t msf)
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{
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return ( ((msf&0x00ff0000)>>16) * 60 * 75) + (((msf&0x0000ff00)>>8) * 75) + ((msf&0x000000ff)>>0);
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}
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static inline uint32_t lba_to_msf(uint32_t lba)
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{
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uint8_t m, s, f;
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m = lba / (60 * 75);
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lba -= m * (60 * 75);
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s = lba / 75;
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f = lba % 75;
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return ((m / 10) << 20) | ((m % 10) << 16) |
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((s / 10) << 12) | ((s % 10) << 8) |
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((f / 10) << 4) | ((f % 10) << 0);
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}
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/**
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* segacd needs it like this.. investigate
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* Angelo also says PCE tracks often start playing at the
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* wrong address.. related?
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**/
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static inline uint32_t lba_to_msf_alt(int lba)
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{
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uint32_t ret = 0;
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ret |= ((lba / (60 * 75))&0xff)<<16;
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ret |= (((lba / 75) % 60)&0xff)<<8;
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ret |= ((lba % 75)&0xff)<<0;
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return ret;
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}
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#endif /* __CDROM_H__ */
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@ -0,0 +1,437 @@
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/***************************************************************************
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chd.h
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MAME Compressed Hunks of Data file format
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****************************************************************************
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Copyright Aaron Giles
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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|
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* 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
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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* Neither the name 'MAME' nor the names of its contributors may be
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used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY AARON GILES ''AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL AARON GILES BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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||||
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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***************************************************************************/
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#pragma once
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#ifndef __CHD_H__
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#define __CHD_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <libchdr/coretypes.h>
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#include <libchdr/chdconfig.h>
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#include <stdbool.h>
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/***************************************************************************
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Compressed Hunks of Data header format. All numbers are stored in
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Motorola (big-endian) byte ordering. The header is 76 (V1) or 80 (V2)
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bytes long.
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V1 header:
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[ 0] char tag[8]; // 'MComprHD'
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[ 8] UINT32 length; // length of header (including tag and length fields)
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[ 12] UINT32 version; // drive format version
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[ 16] UINT32 flags; // flags (see below)
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[ 20] UINT32 compression; // compression type
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[ 24] UINT32 hunksize; // 512-byte sectors per hunk
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[ 28] UINT32 totalhunks; // total # of hunks represented
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[ 32] UINT32 cylinders; // number of cylinders on hard disk
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[ 36] UINT32 heads; // number of heads on hard disk
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[ 40] UINT32 sectors; // number of sectors on hard disk
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[ 44] UINT8 md5[16]; // MD5 checksum of raw data
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[ 60] UINT8 parentmd5[16]; // MD5 checksum of parent file
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[ 76] (V1 header length)
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V2 header:
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[ 0] char tag[8]; // 'MComprHD'
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[ 8] UINT32 length; // length of header (including tag and length fields)
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[ 12] UINT32 version; // drive format version
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[ 16] UINT32 flags; // flags (see below)
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[ 20] UINT32 compression; // compression type
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[ 24] UINT32 hunksize; // seclen-byte sectors per hunk
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[ 28] UINT32 totalhunks; // total # of hunks represented
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[ 32] UINT32 cylinders; // number of cylinders on hard disk
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[ 36] UINT32 heads; // number of heads on hard disk
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[ 40] UINT32 sectors; // number of sectors on hard disk
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[ 44] UINT8 md5[16]; // MD5 checksum of raw data
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[ 60] UINT8 parentmd5[16]; // MD5 checksum of parent file
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[ 76] UINT32 seclen; // number of bytes per sector
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[ 80] (V2 header length)
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V3 header:
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[ 0] char tag[8]; // 'MComprHD'
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[ 8] UINT32 length; // length of header (including tag and length fields)
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[ 12] UINT32 version; // drive format version
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[ 16] UINT32 flags; // flags (see below)
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[ 20] UINT32 compression; // compression type
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[ 24] UINT32 totalhunks; // total # of hunks represented
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[ 28] UINT64 logicalbytes; // logical size of the data (in bytes)
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[ 36] UINT64 metaoffset; // offset to the first blob of metadata
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[ 44] UINT8 md5[16]; // MD5 checksum of raw data
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[ 60] UINT8 parentmd5[16]; // MD5 checksum of parent file
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[ 76] UINT32 hunkbytes; // number of bytes per hunk
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[ 80] UINT8 sha1[20]; // SHA1 checksum of raw data
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[100] UINT8 parentsha1[20];// SHA1 checksum of parent file
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[120] (V3 header length)
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V4 header:
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[ 0] char tag[8]; // 'MComprHD'
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[ 8] UINT32 length; // length of header (including tag and length fields)
|
||||
[ 12] UINT32 version; // drive format version
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[ 16] UINT32 flags; // flags (see below)
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[ 20] UINT32 compression; // compression type
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[ 24] UINT32 totalhunks; // total # of hunks represented
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[ 28] UINT64 logicalbytes; // logical size of the data (in bytes)
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[ 36] UINT64 metaoffset; // offset to the first blob of metadata
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[ 44] UINT32 hunkbytes; // number of bytes per hunk
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[ 48] UINT8 sha1[20]; // combined raw+meta SHA1
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[ 68] UINT8 parentsha1[20];// combined raw+meta SHA1 of parent
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[ 88] UINT8 rawsha1[20]; // raw data SHA1
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[108] (V4 header length)
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|
||||
Flags:
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0x00000001 - set if this drive has a parent
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0x00000002 - set if this drive allows writes
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=========================================================================
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V5 header:
|
||||
|
||||
[ 0] char tag[8]; // 'MComprHD'
|
||||
[ 8] uint32_t length; // length of header (including tag and length fields)
|
||||
[ 12] uint32_t version; // drive format version
|
||||
[ 16] uint32_t compressors[4];// which custom compressors are used?
|
||||
[ 32] uint64_t logicalbytes; // logical size of the data (in bytes)
|
||||
[ 40] uint64_t mapoffset; // offset to the map
|
||||
[ 48] uint64_t metaoffset; // offset to the first blob of metadata
|
||||
[ 56] uint32_t hunkbytes; // number of bytes per hunk (512k maximum)
|
||||
[ 60] uint32_t unitbytes; // number of bytes per unit within each hunk
|
||||
[ 64] uint8_t rawsha1[20]; // raw data SHA1
|
||||
[ 84] uint8_t sha1[20]; // combined raw+meta SHA1
|
||||
[104] uint8_t parentsha1[20];// combined raw+meta SHA1 of parent
|
||||
[124] (V5 header length)
|
||||
|
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If parentsha1 != 0, we have a parent (no need for flags)
|
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If compressors[0] == 0, we are uncompressed (including maps)
|
||||
|
||||
V5 uncompressed map format:
|
||||
|
||||
[ 0] uint32_t offset; // starting offset / hunk size
|
||||
|
||||
V5 compressed map format header:
|
||||
|
||||
[ 0] uint32_t length; // length of compressed map
|
||||
[ 4] UINT48 datastart; // offset of first block
|
||||
[ 10] uint16_t crc; // crc-16 of the map
|
||||
[ 12] uint8_t lengthbits; // bits used to encode complength
|
||||
[ 13] uint8_t hunkbits; // bits used to encode self-refs
|
||||
[ 14] uint8_t parentunitbits; // bits used to encode parent unit refs
|
||||
[ 15] uint8_t reserved; // future use
|
||||
[ 16] (compressed header length)
|
||||
|
||||
Each compressed map entry, once expanded, looks like:
|
||||
|
||||
[ 0] uint8_t compression; // compression type
|
||||
[ 1] UINT24 complength; // compressed length
|
||||
[ 4] UINT48 offset; // offset
|
||||
[ 10] uint16_t crc; // crc-16 of the data
|
||||
|
||||
***************************************************************************/
|
||||
|
||||
|
||||
/***************************************************************************
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||||
CONSTANTS
|
||||
***************************************************************************/
|
||||
|
||||
/* header information */
|
||||
#define CHD_HEADER_VERSION 5
|
||||
#define CHD_V1_HEADER_SIZE 76
|
||||
#define CHD_V2_HEADER_SIZE 80
|
||||
#define CHD_V3_HEADER_SIZE 120
|
||||
#define CHD_V4_HEADER_SIZE 108
|
||||
#define CHD_V5_HEADER_SIZE 124
|
||||
|
||||
#define CHD_MAX_HEADER_SIZE CHD_V5_HEADER_SIZE
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||||
|
||||
/* checksumming information */
|
||||
#define CHD_MD5_BYTES 16
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#define CHD_SHA1_BYTES 20
|
||||
|
||||
/* CHD global flags */
|
||||
#define CHDFLAGS_HAS_PARENT 0x00000001
|
||||
#define CHDFLAGS_IS_WRITEABLE 0x00000002
|
||||
#define CHDFLAGS_UNDEFINED 0xfffffffc
|
||||
|
||||
#define CHD_MAKE_TAG(a,b,c,d) (((a) << 24) | ((b) << 16) | ((c) << 8) | (d))
|
||||
|
||||
/* compression types */
|
||||
#define CHDCOMPRESSION_NONE 0
|
||||
#define CHDCOMPRESSION_ZLIB 1
|
||||
#define CHDCOMPRESSION_ZLIB_PLUS 2
|
||||
#define CHDCOMPRESSION_AV 3
|
||||
|
||||
#define CHD_CODEC_NONE 0
|
||||
#define CHD_CODEC_ZLIB CHD_MAKE_TAG('z','l','i','b')
|
||||
#define CHD_CODEC_LZMA CHD_MAKE_TAG('l','z','m','a')
|
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#define CHD_CODEC_HUFFMAN CHD_MAKE_TAG('h','u','f','f')
|
||||
#define CHD_CODEC_FLAC CHD_MAKE_TAG('f','l','a','c')
|
||||
/* general codecs with CD frontend */
|
||||
#define CHD_CODEC_CD_ZLIB CHD_MAKE_TAG('c','d','z','l')
|
||||
#define CHD_CODEC_CD_LZMA CHD_MAKE_TAG('c','d','l','z')
|
||||
#define CHD_CODEC_CD_FLAC CHD_MAKE_TAG('c','d','f','l')
|
||||
|
||||
/* A/V codec configuration parameters */
|
||||
#define AV_CODEC_COMPRESS_CONFIG 1
|
||||
#define AV_CODEC_DECOMPRESS_CONFIG 2
|
||||
|
||||
/* metadata parameters */
|
||||
#define CHDMETATAG_WILDCARD 0
|
||||
#define CHD_METAINDEX_APPEND ((UINT32)-1)
|
||||
|
||||
/* metadata flags */
|
||||
#define CHD_MDFLAGS_CHECKSUM 0x01 /* indicates data is checksummed */
|
||||
|
||||
/* standard hard disk metadata */
|
||||
#define HARD_DISK_METADATA_TAG CHD_MAKE_TAG('G','D','D','D')
|
||||
#define HARD_DISK_METADATA_FORMAT "CYLS:%d,HEADS:%d,SECS:%d,BPS:%d"
|
||||
|
||||
/* hard disk identify information */
|
||||
#define HARD_DISK_IDENT_METADATA_TAG CHD_MAKE_TAG('I','D','N','T')
|
||||
|
||||
/* hard disk key information */
|
||||
#define HARD_DISK_KEY_METADATA_TAG CHD_MAKE_TAG('K','E','Y',' ')
|
||||
|
||||
/* pcmcia CIS information */
|
||||
#define PCMCIA_CIS_METADATA_TAG CHD_MAKE_TAG('C','I','S',' ')
|
||||
|
||||
/* standard CD-ROM metadata */
|
||||
#define CDROM_OLD_METADATA_TAG CHD_MAKE_TAG('C','H','C','D')
|
||||
#define CDROM_TRACK_METADATA_TAG CHD_MAKE_TAG('C','H','T','R')
|
||||
#define CDROM_TRACK_METADATA_FORMAT "TRACK:%d TYPE:%s SUBTYPE:%s FRAMES:%d"
|
||||
#define CDROM_TRACK_METADATA2_TAG CHD_MAKE_TAG('C','H','T','2')
|
||||
#define CDROM_TRACK_METADATA2_FORMAT "TRACK:%d TYPE:%s SUBTYPE:%s FRAMES:%d PREGAP:%d PGTYPE:%s PGSUB:%s POSTGAP:%d"
|
||||
#define GDROM_OLD_METADATA_TAG CHD_MAKE_TAG('C','H','G','T')
|
||||
#define GDROM_TRACK_METADATA_TAG CHD_MAKE_TAG('C', 'H', 'G', 'D')
|
||||
#define GDROM_TRACK_METADATA_FORMAT "TRACK:%d TYPE:%s SUBTYPE:%s FRAMES:%d PAD:%d PREGAP:%d PGTYPE:%s PGSUB:%s POSTGAP:%d"
|
||||
|
||||
/* standard A/V metadata */
|
||||
#define AV_METADATA_TAG CHD_MAKE_TAG('A','V','A','V')
|
||||
#define AV_METADATA_FORMAT "FPS:%d.%06d WIDTH:%d HEIGHT:%d INTERLACED:%d CHANNELS:%d SAMPLERATE:%d"
|
||||
|
||||
/* A/V laserdisc frame metadata */
|
||||
#define AV_LD_METADATA_TAG CHD_MAKE_TAG('A','V','L','D')
|
||||
|
||||
/* CHD open values */
|
||||
#define CHD_OPEN_READ 1
|
||||
#define CHD_OPEN_READWRITE 2
|
||||
#define CHD_OPEN_TRANSFER_FILE 4 /* Freeing of the FILE* is now libchdr's responsibility if open was successful */
|
||||
|
||||
/* error types */
|
||||
enum _chd_error
|
||||
{
|
||||
CHDERR_NONE,
|
||||
CHDERR_NO_INTERFACE,
|
||||
CHDERR_OUT_OF_MEMORY,
|
||||
CHDERR_INVALID_FILE,
|
||||
CHDERR_INVALID_PARAMETER,
|
||||
CHDERR_INVALID_DATA,
|
||||
CHDERR_FILE_NOT_FOUND,
|
||||
CHDERR_REQUIRES_PARENT,
|
||||
CHDERR_FILE_NOT_WRITEABLE,
|
||||
CHDERR_READ_ERROR,
|
||||
CHDERR_WRITE_ERROR,
|
||||
CHDERR_CODEC_ERROR,
|
||||
CHDERR_INVALID_PARENT,
|
||||
CHDERR_HUNK_OUT_OF_RANGE,
|
||||
CHDERR_DECOMPRESSION_ERROR,
|
||||
CHDERR_COMPRESSION_ERROR,
|
||||
CHDERR_CANT_CREATE_FILE,
|
||||
CHDERR_CANT_VERIFY,
|
||||
CHDERR_NOT_SUPPORTED,
|
||||
CHDERR_METADATA_NOT_FOUND,
|
||||
CHDERR_INVALID_METADATA_SIZE,
|
||||
CHDERR_UNSUPPORTED_VERSION,
|
||||
CHDERR_VERIFY_INCOMPLETE,
|
||||
CHDERR_INVALID_METADATA,
|
||||
CHDERR_INVALID_STATE,
|
||||
CHDERR_OPERATION_PENDING,
|
||||
CHDERR_NO_ASYNC_OPERATION,
|
||||
CHDERR_UNSUPPORTED_FORMAT
|
||||
};
|
||||
typedef enum _chd_error chd_error;
|
||||
|
||||
|
||||
|
||||
/***************************************************************************
|
||||
TYPE DEFINITIONS
|
||||
***************************************************************************/
|
||||
|
||||
/* opaque types */
|
||||
typedef struct _chd_file chd_file;
|
||||
|
||||
|
||||
/* extract header structure (NOT the on-disk header structure) */
|
||||
typedef struct _chd_header chd_header;
|
||||
struct _chd_header
|
||||
{
|
||||
UINT32 length; /* length of header data */
|
||||
UINT32 version; /* drive format version */
|
||||
UINT32 flags; /* flags field */
|
||||
UINT32 compression[4]; /* compression type */
|
||||
UINT32 hunkbytes; /* number of bytes per hunk */
|
||||
UINT32 totalhunks; /* total # of hunks represented */
|
||||
UINT64 logicalbytes; /* logical size of the data */
|
||||
UINT64 metaoffset; /* offset in file of first metadata */
|
||||
UINT64 mapoffset; /* TOOD V5 */
|
||||
UINT8 md5[CHD_MD5_BYTES]; /* overall MD5 checksum */
|
||||
UINT8 parentmd5[CHD_MD5_BYTES]; /* overall MD5 checksum of parent */
|
||||
UINT8 sha1[CHD_SHA1_BYTES]; /* overall SHA1 checksum */
|
||||
UINT8 rawsha1[CHD_SHA1_BYTES]; /* SHA1 checksum of raw data */
|
||||
UINT8 parentsha1[CHD_SHA1_BYTES]; /* overall SHA1 checksum of parent */
|
||||
UINT32 unitbytes; /* TODO V5 */
|
||||
UINT64 unitcount; /* TODO V5 */
|
||||
UINT32 hunkcount; /* TODO V5 */
|
||||
|
||||
/* map information */
|
||||
UINT32 mapentrybytes; /* length of each entry in a map (V5) */
|
||||
UINT8* rawmap; /* raw map data */
|
||||
|
||||
UINT32 obsolete_cylinders; /* obsolete field -- do not use! */
|
||||
UINT32 obsolete_sectors; /* obsolete field -- do not use! */
|
||||
UINT32 obsolete_heads; /* obsolete field -- do not use! */
|
||||
UINT32 obsolete_hunksize; /* obsolete field -- do not use! */
|
||||
};
|
||||
|
||||
|
||||
/* structure for returning information about a verification pass */
|
||||
typedef struct _chd_verify_result chd_verify_result;
|
||||
struct _chd_verify_result
|
||||
{
|
||||
UINT8 md5[CHD_MD5_BYTES]; /* overall MD5 checksum */
|
||||
UINT8 sha1[CHD_SHA1_BYTES]; /* overall SHA1 checksum */
|
||||
UINT8 rawsha1[CHD_SHA1_BYTES]; /* SHA1 checksum of raw data */
|
||||
UINT8 metasha1[CHD_SHA1_BYTES]; /* SHA1 checksum of metadata */
|
||||
};
|
||||
|
||||
|
||||
|
||||
/***************************************************************************
|
||||
FUNCTION PROTOTYPES
|
||||
***************************************************************************/
|
||||
|
||||
#ifdef _MSC_VER
|
||||
#ifdef CHD_DLL
|
||||
#ifdef CHD_DLL_EXPORTS
|
||||
#define CHD_EXPORT __declspec(dllexport)
|
||||
#else
|
||||
#define CHD_EXPORT __declspec(dllimport)
|
||||
#endif
|
||||
#else
|
||||
#define CHD_EXPORT
|
||||
#endif
|
||||
#else
|
||||
#define CHD_EXPORT __attribute__ ((visibility("default")))
|
||||
#endif
|
||||
|
||||
/* ----- CHD file management ----- */
|
||||
|
||||
/* create a new CHD file fitting the given description */
|
||||
/* chd_error chd_create(const char *filename, UINT64 logicalbytes, UINT32 hunkbytes, UINT32 compression, chd_file *parent); */
|
||||
|
||||
/* same as chd_create(), but accepts an already-opened core_file object */
|
||||
/* chd_error chd_create_file(core_file *file, UINT64 logicalbytes, UINT32 hunkbytes, UINT32 compression, chd_file *parent); */
|
||||
|
||||
/* open an existing CHD file */
|
||||
CHD_EXPORT chd_error chd_open_core_file(core_file *file, int mode, chd_file *parent, chd_file **chd);
|
||||
CHD_EXPORT chd_error chd_open_file(FILE *file, int mode, chd_file *parent, chd_file **chd);
|
||||
CHD_EXPORT chd_error chd_open(const char *filename, int mode, chd_file *parent, chd_file **chd);
|
||||
|
||||
/* precache underlying file */
|
||||
CHD_EXPORT chd_error chd_precache(chd_file *chd);
|
||||
CHD_EXPORT chd_error chd_precache_progress(chd_file* chd, void(*progress)(size_t pos, size_t total, void* param), void* param);
|
||||
|
||||
/* close a CHD file */
|
||||
CHD_EXPORT void chd_close(chd_file *chd);
|
||||
|
||||
/* return the associated core_file */
|
||||
CHD_EXPORT core_file *chd_core_file(chd_file *chd);
|
||||
|
||||
/* return an error string for the given CHD error */
|
||||
CHD_EXPORT const char *chd_error_string(chd_error err);
|
||||
|
||||
|
||||
|
||||
/* ----- CHD header management ----- */
|
||||
|
||||
/* return a pointer to the extracted CHD header data */
|
||||
CHD_EXPORT const chd_header *chd_get_header(chd_file *chd);
|
||||
|
||||
/* read CHD header data from file into the pointed struct */
|
||||
CHD_EXPORT chd_error chd_read_header_core_file(core_file *file, chd_header *header);
|
||||
CHD_EXPORT chd_error chd_read_header_file(FILE *file, chd_header *header);
|
||||
CHD_EXPORT chd_error chd_read_header(const char *filename, chd_header *header);
|
||||
CHD_EXPORT bool chd_is_matching_parent(const chd_header* header, const chd_header* parent_header);
|
||||
|
||||
|
||||
|
||||
/* ----- core data read/write ----- */
|
||||
|
||||
/* read one hunk from the CHD file */
|
||||
CHD_EXPORT chd_error chd_read(chd_file *chd, UINT32 hunknum, void *buffer);
|
||||
|
||||
|
||||
|
||||
/* ----- metadata management ----- */
|
||||
|
||||
/* get indexed metadata of a particular sort */
|
||||
CHD_EXPORT chd_error chd_get_metadata(chd_file *chd, UINT32 searchtag, UINT32 searchindex, void *output, UINT32 outputlen, UINT32 *resultlen, UINT32 *resulttag, UINT8 *resultflags);
|
||||
|
||||
|
||||
|
||||
|
||||
/* ----- codec interfaces ----- */
|
||||
|
||||
/* set internal codec parameters */
|
||||
CHD_EXPORT chd_error chd_codec_config(chd_file *chd, int param, void *config);
|
||||
|
||||
/* return a string description of a codec */
|
||||
CHD_EXPORT const char *chd_get_codec_name(UINT32 codec);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __CHD_H__ */
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
#ifndef __CHDCONFIG_H__
|
||||
#define __CHDCONFIG_H__
|
||||
|
||||
/* Configure CHDR features here */
|
||||
#define WANT_RAW_DATA_SECTOR 1
|
||||
#define WANT_SUBCODE 1
|
||||
#define NEED_CACHE_HUNK 1
|
||||
#define VERIFY_BLOCK_CRC 1
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,78 @@
|
|||
#ifndef __CORETYPES_H__
|
||||
#define __CORETYPES_H__
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
|
||||
#ifdef USE_LIBRETRO_VFS
|
||||
#include <streams/file_stream_transforms.h>
|
||||
#endif
|
||||
|
||||
#define ARRAY_LENGTH(x) (sizeof(x)/sizeof(x[0]))
|
||||
|
||||
#if defined(__PS3__) || defined(__PSL1GHT__)
|
||||
#undef UINT32
|
||||
#undef UINT16
|
||||
#undef UINT8
|
||||
#undef INT32
|
||||
#undef INT16
|
||||
#undef INT8
|
||||
#endif
|
||||
|
||||
typedef uint64_t UINT64;
|
||||
typedef uint32_t UINT32;
|
||||
typedef uint16_t UINT16;
|
||||
typedef uint8_t UINT8;
|
||||
|
||||
typedef int64_t INT64;
|
||||
typedef int32_t INT32;
|
||||
typedef int16_t INT16;
|
||||
typedef int8_t INT8;
|
||||
|
||||
typedef struct chd_core_file {
|
||||
/*
|
||||
* arbitrary pointer to data the implementation uses to implement the below functions
|
||||
*/
|
||||
void *argp;
|
||||
|
||||
/*
|
||||
* return the size of a given file as a 64-bit unsigned integer.
|
||||
* the position of the file pointer after calling this function is
|
||||
* undefined because many implementations will seek to the end of the
|
||||
* file and call ftell.
|
||||
*
|
||||
* on error, (UINT64)-1 is returned.
|
||||
*/
|
||||
UINT64(*fsize)(struct chd_core_file*);
|
||||
|
||||
/*
|
||||
* should match the behavior of fread, except the FILE* argument at the end
|
||||
* will be replaced with a struct chd_core_file*.
|
||||
*/
|
||||
size_t(*fread)(void*,size_t,size_t,struct chd_core_file*);
|
||||
|
||||
// closes the given file.
|
||||
int (*fclose)(struct chd_core_file*);
|
||||
|
||||
// fseek clone
|
||||
int (*fseek)(struct chd_core_file*, INT64, int);
|
||||
} core_file;
|
||||
|
||||
static inline int core_fclose(core_file *fp) {
|
||||
return fp->fclose(fp);
|
||||
}
|
||||
|
||||
static inline size_t core_fread(core_file *fp, void *ptr, size_t len) {
|
||||
return fp->fread(ptr, 1, len, fp);
|
||||
}
|
||||
|
||||
static inline int core_fseek(core_file* fp, INT64 offset, int whence) {
|
||||
return fp->fseek(fp, offset, whence);
|
||||
}
|
||||
|
||||
static inline UINT64 core_fsize(core_file *fp)
|
||||
{
|
||||
return fp->fsize(fp);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,50 @@
|
|||
/* license:BSD-3-Clause
|
||||
* copyright-holders:Aaron Giles
|
||||
***************************************************************************
|
||||
|
||||
flac.h
|
||||
|
||||
FLAC compression wrappers
|
||||
|
||||
***************************************************************************/
|
||||
|
||||
#pragma once
|
||||
|
||||
#ifndef __FLAC_H__
|
||||
#define __FLAC_H__
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
/***************************************************************************
|
||||
* TYPE DEFINITIONS
|
||||
***************************************************************************
|
||||
*/
|
||||
|
||||
typedef struct _flac_decoder flac_decoder;
|
||||
struct _flac_decoder {
|
||||
/* output state */
|
||||
void * decoder; /* actual encoder */
|
||||
uint32_t sample_rate; /* decoded sample rate */
|
||||
uint8_t channels; /* decoded number of channels */
|
||||
uint8_t bits_per_sample; /* decoded bits per sample */
|
||||
uint32_t compressed_offset; /* current offset in compressed data */
|
||||
const uint8_t * compressed_start; /* start of compressed data */
|
||||
uint32_t compressed_length; /* length of compressed data */
|
||||
const uint8_t * compressed2_start; /* start of compressed data */
|
||||
uint32_t compressed2_length; /* length of compressed data */
|
||||
int16_t * uncompressed_start[8]; /* pointer to start of uncompressed data (up to 8 streams) */
|
||||
uint32_t uncompressed_offset; /* current position in uncompressed data */
|
||||
uint32_t uncompressed_length; /* length of uncompressed data */
|
||||
int uncompressed_swap; /* swap uncompressed sample data */
|
||||
uint8_t custom_header[0x2a]; /* custom header */
|
||||
};
|
||||
|
||||
/* ======================> flac_decoder */
|
||||
|
||||
int flac_decoder_init(flac_decoder* decoder);
|
||||
void flac_decoder_free(flac_decoder* decoder);
|
||||
int flac_decoder_reset(flac_decoder* decoder, uint32_t sample_rate, uint8_t num_channels, uint32_t block_size, const void *buffer, uint32_t length);
|
||||
int flac_decoder_decode_interleaved(flac_decoder* decoder, int16_t *samples, uint32_t num_samples, int swap_endian);
|
||||
uint32_t flac_decoder_finish(flac_decoder* decoder);
|
||||
|
||||
#endif /* __FLAC_H__ */
|
||||
|
|
@ -0,0 +1,90 @@
|
|||
/* license:BSD-3-Clause
|
||||
* copyright-holders:Aaron Giles
|
||||
***************************************************************************
|
||||
|
||||
huffman.h
|
||||
|
||||
Static Huffman compression and decompression helpers.
|
||||
|
||||
***************************************************************************/
|
||||
|
||||
#pragma once
|
||||
|
||||
#ifndef __HUFFMAN_H__
|
||||
#define __HUFFMAN_H__
|
||||
|
||||
#include <libchdr/bitstream.h>
|
||||
|
||||
|
||||
/***************************************************************************
|
||||
* CONSTANTS
|
||||
***************************************************************************
|
||||
*/
|
||||
|
||||
enum huffman_error
|
||||
{
|
||||
HUFFERR_NONE = 0,
|
||||
HUFFERR_TOO_MANY_BITS,
|
||||
HUFFERR_INVALID_DATA,
|
||||
HUFFERR_INPUT_BUFFER_TOO_SMALL,
|
||||
HUFFERR_OUTPUT_BUFFER_TOO_SMALL,
|
||||
HUFFERR_INTERNAL_INCONSISTENCY,
|
||||
HUFFERR_TOO_MANY_CONTEXTS
|
||||
};
|
||||
|
||||
/***************************************************************************
|
||||
* TYPE DEFINITIONS
|
||||
***************************************************************************
|
||||
*/
|
||||
|
||||
typedef uint16_t lookup_value;
|
||||
|
||||
/* a node in the huffman tree */
|
||||
struct node_t
|
||||
{
|
||||
struct node_t* parent; /* pointer to parent node */
|
||||
uint32_t count; /* number of hits on this node */
|
||||
uint32_t weight; /* assigned weight of this node */
|
||||
uint32_t bits; /* bits used to encode the node */
|
||||
uint8_t numbits; /* number of bits needed for this node */
|
||||
};
|
||||
|
||||
/* ======================> huffman_context_base */
|
||||
|
||||
/* context class for decoding */
|
||||
struct huffman_decoder
|
||||
{
|
||||
/* internal state */
|
||||
uint32_t numcodes; /* number of total codes being processed */
|
||||
uint8_t maxbits; /* maximum bits per code */
|
||||
uint8_t prevdata; /* value of the previous data (for delta-RLE encoding) */
|
||||
int rleremaining; /* number of RLE bytes remaining (for delta-RLE encoding) */
|
||||
lookup_value * lookup; /* pointer to the lookup table */
|
||||
struct node_t * huffnode; /* array of nodes */
|
||||
uint32_t * datahisto; /* histogram of data values */
|
||||
|
||||
/* array versions of the info we need */
|
||||
#if 0
|
||||
node_t* huffnode_array; /* [_NumCodes]; */
|
||||
lookup_value* lookup_array; /* [1 << _MaxBits]; */
|
||||
#endif
|
||||
};
|
||||
|
||||
/* ======================> huffman_decoder */
|
||||
|
||||
struct huffman_decoder* create_huffman_decoder(int numcodes, int maxbits);
|
||||
void delete_huffman_decoder(struct huffman_decoder* decoder);
|
||||
|
||||
/* single item operations */
|
||||
uint32_t huffman_decode_one(struct huffman_decoder* decoder, struct bitstream* bitbuf);
|
||||
|
||||
enum huffman_error huffman_import_tree_rle(struct huffman_decoder* decoder, struct bitstream* bitbuf);
|
||||
enum huffman_error huffman_import_tree_huffman(struct huffman_decoder* decoder, struct bitstream* bitbuf);
|
||||
|
||||
int huffman_build_tree(struct huffman_decoder* decoder, uint32_t totaldata, uint32_t totalweight);
|
||||
enum huffman_error huffman_assign_canonical_codes(struct huffman_decoder* decoder);
|
||||
enum huffman_error huffman_compute_tree_from_histo(struct huffman_decoder* decoder);
|
||||
|
||||
void huffman_build_lookup_table(struct huffman_decoder* decoder);
|
||||
|
||||
#endif
|
||||
|
|
@ -1 +0,0 @@
|
|||
Subproject commit fec8ab94212cc65d9d9a62cb3da924f5830c04b0
|
||||
|
|
@ -34,16 +34,16 @@
|
|||
<ClCompile>
|
||||
<PreprocessorDefinitions>%(PreprocessorDefinitions);_7ZIP_ST</PreprocessorDefinitions>
|
||||
<WarningLevel>TurnOffAllWarnings</WarningLevel>
|
||||
<AdditionalIncludeDirectories>$(ProjectDir)libchdr\include;$(ProjectDir)\libchdr\src;$(SolutionDir)3rdparty\lzma\include;$(SolutionDir)3rdparty\zlib;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
|
||||
<AdditionalIncludeDirectories>$(ProjectDir)include;$(ProjectDir)src;$(SolutionDir)3rdparty\lzma\include;$(SolutionDir)3rdparty\zlib;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
|
||||
<LanguageStandard>stdcpp17</LanguageStandard>
|
||||
</ClCompile>
|
||||
</ItemDefinitionGroup>
|
||||
<ItemGroup>
|
||||
<ClCompile Include="libchdr\src\libchdr_bitstream.c" />
|
||||
<ClCompile Include="libchdr\src\libchdr_cdrom.c" />
|
||||
<ClCompile Include="libchdr\src\libchdr_chd.c" />
|
||||
<ClCompile Include="libchdr\src\libchdr_flac.c" />
|
||||
<ClCompile Include="libchdr\src\libchdr_huffman.c" />
|
||||
<ClCompile Include="src\libchdr_bitstream.c" />
|
||||
<ClCompile Include="src\libchdr_cdrom.c" />
|
||||
<ClCompile Include="src\libchdr_chd.c" />
|
||||
<ClCompile Include="src\libchdr_flac.c" />
|
||||
<ClCompile Include="src\libchdr_huffman.c" />
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ProjectReference Include="..\lzma\lzma.vcxproj">
|
||||
|
|
|
|||
|
|
@ -0,0 +1,125 @@
|
|||
/* license:BSD-3-Clause
|
||||
* copyright-holders:Aaron Giles
|
||||
***************************************************************************
|
||||
|
||||
bitstream.c
|
||||
|
||||
Helper classes for reading/writing at the bit level.
|
||||
|
||||
***************************************************************************/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <libchdr/bitstream.h>
|
||||
|
||||
/***************************************************************************
|
||||
* INLINE FUNCTIONS
|
||||
***************************************************************************
|
||||
*/
|
||||
|
||||
int bitstream_overflow(struct bitstream* bitstream) { return ((bitstream->doffset - bitstream->bits / 8) > bitstream->dlength); }
|
||||
|
||||
/*-------------------------------------------------
|
||||
* create_bitstream - constructor
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
struct bitstream* create_bitstream(const void *src, uint32_t srclength)
|
||||
{
|
||||
struct bitstream* bitstream = (struct bitstream*)malloc(sizeof(struct bitstream));
|
||||
bitstream->buffer = 0;
|
||||
bitstream->bits = 0;
|
||||
bitstream->read = (const uint8_t*)src;
|
||||
bitstream->doffset = 0;
|
||||
bitstream->dlength = srclength;
|
||||
return bitstream;
|
||||
}
|
||||
|
||||
|
||||
/*-----------------------------------------------------
|
||||
* bitstream_peek - fetch the requested number of bits
|
||||
* but don't advance the input pointer
|
||||
*-----------------------------------------------------
|
||||
*/
|
||||
|
||||
uint32_t bitstream_peek(struct bitstream* bitstream, int numbits)
|
||||
{
|
||||
if (numbits == 0)
|
||||
return 0;
|
||||
|
||||
/* fetch data if we need more */
|
||||
if (numbits > bitstream->bits)
|
||||
{
|
||||
while (bitstream->bits <= 24)
|
||||
{
|
||||
if (bitstream->doffset < bitstream->dlength)
|
||||
bitstream->buffer |= bitstream->read[bitstream->doffset] << (24 - bitstream->bits);
|
||||
bitstream->doffset++;
|
||||
bitstream->bits += 8;
|
||||
}
|
||||
}
|
||||
|
||||
/* return the data */
|
||||
return bitstream->buffer >> (32 - numbits);
|
||||
}
|
||||
|
||||
|
||||
/*-----------------------------------------------------
|
||||
* bitstream_remove - advance the input pointer by the
|
||||
* specified number of bits
|
||||
*-----------------------------------------------------
|
||||
*/
|
||||
|
||||
void bitstream_remove(struct bitstream* bitstream, int numbits)
|
||||
{
|
||||
bitstream->buffer <<= numbits;
|
||||
bitstream->bits -= numbits;
|
||||
}
|
||||
|
||||
|
||||
/*-----------------------------------------------------
|
||||
* bitstream_read - fetch the requested number of bits
|
||||
*-----------------------------------------------------
|
||||
*/
|
||||
|
||||
uint32_t bitstream_read(struct bitstream* bitstream, int numbits)
|
||||
{
|
||||
uint32_t result = bitstream_peek(bitstream, numbits);
|
||||
bitstream_remove(bitstream, numbits);
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
/*-------------------------------------------------
|
||||
* read_offset - return the current read offset
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
uint32_t bitstream_read_offset(struct bitstream* bitstream)
|
||||
{
|
||||
uint32_t result = bitstream->doffset;
|
||||
int bits = bitstream->bits;
|
||||
while (bits >= 8)
|
||||
{
|
||||
result--;
|
||||
bits -= 8;
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
|
||||
/*-------------------------------------------------
|
||||
* flush - flush to the nearest byte
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
uint32_t bitstream_flush(struct bitstream* bitstream)
|
||||
{
|
||||
while (bitstream->bits >= 8)
|
||||
{
|
||||
bitstream->doffset--;
|
||||
bitstream->bits -= 8;
|
||||
}
|
||||
bitstream->bits = bitstream->buffer = 0;
|
||||
return bitstream->doffset;
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,415 @@
|
|||
/* license:BSD-3-Clause
|
||||
* copyright-holders:Aaron Giles
|
||||
***************************************************************************
|
||||
|
||||
cdrom.c
|
||||
|
||||
Generic MAME CD-ROM utilties - build IDE and SCSI CD-ROMs on top of this
|
||||
|
||||
****************************************************************************
|
||||
|
||||
IMPORTANT:
|
||||
"physical" block addresses are the actual addresses on the emulated CD.
|
||||
"chd" block addresses are the block addresses in the CHD file.
|
||||
Because we pad each track to a 4-frame boundary, these addressing
|
||||
schemes will differ after track 1!
|
||||
|
||||
***************************************************************************/
|
||||
|
||||
#include <string.h>
|
||||
|
||||
#include <libchdr/cdrom.h>
|
||||
|
||||
#ifdef WANT_RAW_DATA_SECTOR
|
||||
|
||||
/***************************************************************************
|
||||
DEBUGGING
|
||||
***************************************************************************/
|
||||
|
||||
/** @brief The verbose. */
|
||||
#define VERBOSE (0)
|
||||
#if VERBOSE
|
||||
|
||||
/**
|
||||
* @def LOG(x) do
|
||||
*
|
||||
* @brief A macro that defines log.
|
||||
*
|
||||
* @param x The void to process.
|
||||
*/
|
||||
|
||||
#define LOG(x) do { if (VERBOSE) logerror x; } while (0)
|
||||
|
||||
/**
|
||||
* @fn void CLIB_DECL logerror(const char *text, ...) ATTR_PRINTF(1,2);
|
||||
*
|
||||
* @brief Logerrors the given text.
|
||||
*
|
||||
* @param text The text.
|
||||
*
|
||||
* @return A CLIB_DECL.
|
||||
*/
|
||||
|
||||
void CLIB_DECL logerror(const char *text, ...) ATTR_PRINTF(1,2);
|
||||
#else
|
||||
|
||||
/**
|
||||
* @def LOG(x);
|
||||
*
|
||||
* @brief A macro that defines log.
|
||||
*
|
||||
* @param x The void to process.
|
||||
*/
|
||||
|
||||
#define LOG(x)
|
||||
#endif
|
||||
|
||||
/***************************************************************************
|
||||
CONSTANTS
|
||||
***************************************************************************/
|
||||
|
||||
/** @brief offset within sector. */
|
||||
#define SYNC_OFFSET 0x000
|
||||
/** @brief 12 bytes. */
|
||||
#define SYNC_NUM_BYTES 12
|
||||
|
||||
/** @brief offset within sector. */
|
||||
#define MODE_OFFSET 0x00f
|
||||
|
||||
/** @brief offset within sector. */
|
||||
#define ECC_P_OFFSET 0x81c
|
||||
/** @brief 2 lots of 86. */
|
||||
#define ECC_P_NUM_BYTES 86
|
||||
/** @brief 24 bytes each. */
|
||||
#define ECC_P_COMP 24
|
||||
|
||||
/** @brief The ECC q offset. */
|
||||
#define ECC_Q_OFFSET (ECC_P_OFFSET + 2 * ECC_P_NUM_BYTES)
|
||||
/** @brief 2 lots of 52. */
|
||||
#define ECC_Q_NUM_BYTES 52
|
||||
/** @brief 43 bytes each. */
|
||||
#define ECC_Q_COMP 43
|
||||
|
||||
/**
|
||||
* @brief -------------------------------------------------
|
||||
* ECC lookup tables pre-calculated tables for ECC data calcs
|
||||
* -------------------------------------------------.
|
||||
*/
|
||||
|
||||
static const uint8_t ecclow[256] =
|
||||
{
|
||||
0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
|
||||
0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e,
|
||||
0x40, 0x42, 0x44, 0x46, 0x48, 0x4a, 0x4c, 0x4e, 0x50, 0x52, 0x54, 0x56, 0x58, 0x5a, 0x5c, 0x5e,
|
||||
0x60, 0x62, 0x64, 0x66, 0x68, 0x6a, 0x6c, 0x6e, 0x70, 0x72, 0x74, 0x76, 0x78, 0x7a, 0x7c, 0x7e,
|
||||
0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8c, 0x8e, 0x90, 0x92, 0x94, 0x96, 0x98, 0x9a, 0x9c, 0x9e,
|
||||
0xa0, 0xa2, 0xa4, 0xa6, 0xa8, 0xaa, 0xac, 0xae, 0xb0, 0xb2, 0xb4, 0xb6, 0xb8, 0xba, 0xbc, 0xbe,
|
||||
0xc0, 0xc2, 0xc4, 0xc6, 0xc8, 0xca, 0xcc, 0xce, 0xd0, 0xd2, 0xd4, 0xd6, 0xd8, 0xda, 0xdc, 0xde,
|
||||
0xe0, 0xe2, 0xe4, 0xe6, 0xe8, 0xea, 0xec, 0xee, 0xf0, 0xf2, 0xf4, 0xf6, 0xf8, 0xfa, 0xfc, 0xfe,
|
||||
0x1d, 0x1f, 0x19, 0x1b, 0x15, 0x17, 0x11, 0x13, 0x0d, 0x0f, 0x09, 0x0b, 0x05, 0x07, 0x01, 0x03,
|
||||
0x3d, 0x3f, 0x39, 0x3b, 0x35, 0x37, 0x31, 0x33, 0x2d, 0x2f, 0x29, 0x2b, 0x25, 0x27, 0x21, 0x23,
|
||||
0x5d, 0x5f, 0x59, 0x5b, 0x55, 0x57, 0x51, 0x53, 0x4d, 0x4f, 0x49, 0x4b, 0x45, 0x47, 0x41, 0x43,
|
||||
0x7d, 0x7f, 0x79, 0x7b, 0x75, 0x77, 0x71, 0x73, 0x6d, 0x6f, 0x69, 0x6b, 0x65, 0x67, 0x61, 0x63,
|
||||
0x9d, 0x9f, 0x99, 0x9b, 0x95, 0x97, 0x91, 0x93, 0x8d, 0x8f, 0x89, 0x8b, 0x85, 0x87, 0x81, 0x83,
|
||||
0xbd, 0xbf, 0xb9, 0xbb, 0xb5, 0xb7, 0xb1, 0xb3, 0xad, 0xaf, 0xa9, 0xab, 0xa5, 0xa7, 0xa1, 0xa3,
|
||||
0xdd, 0xdf, 0xd9, 0xdb, 0xd5, 0xd7, 0xd1, 0xd3, 0xcd, 0xcf, 0xc9, 0xcb, 0xc5, 0xc7, 0xc1, 0xc3,
|
||||
0xfd, 0xff, 0xf9, 0xfb, 0xf5, 0xf7, 0xf1, 0xf3, 0xed, 0xef, 0xe9, 0xeb, 0xe5, 0xe7, 0xe1, 0xe3
|
||||
};
|
||||
|
||||
/** @brief The ecchigh[ 256]. */
|
||||
static const uint8_t ecchigh[256] =
|
||||
{
|
||||
0x00, 0xf4, 0xf5, 0x01, 0xf7, 0x03, 0x02, 0xf6, 0xf3, 0x07, 0x06, 0xf2, 0x04, 0xf0, 0xf1, 0x05,
|
||||
0xfb, 0x0f, 0x0e, 0xfa, 0x0c, 0xf8, 0xf9, 0x0d, 0x08, 0xfc, 0xfd, 0x09, 0xff, 0x0b, 0x0a, 0xfe,
|
||||
0xeb, 0x1f, 0x1e, 0xea, 0x1c, 0xe8, 0xe9, 0x1d, 0x18, 0xec, 0xed, 0x19, 0xef, 0x1b, 0x1a, 0xee,
|
||||
0x10, 0xe4, 0xe5, 0x11, 0xe7, 0x13, 0x12, 0xe6, 0xe3, 0x17, 0x16, 0xe2, 0x14, 0xe0, 0xe1, 0x15,
|
||||
0xcb, 0x3f, 0x3e, 0xca, 0x3c, 0xc8, 0xc9, 0x3d, 0x38, 0xcc, 0xcd, 0x39, 0xcf, 0x3b, 0x3a, 0xce,
|
||||
0x30, 0xc4, 0xc5, 0x31, 0xc7, 0x33, 0x32, 0xc6, 0xc3, 0x37, 0x36, 0xc2, 0x34, 0xc0, 0xc1, 0x35,
|
||||
0x20, 0xd4, 0xd5, 0x21, 0xd7, 0x23, 0x22, 0xd6, 0xd3, 0x27, 0x26, 0xd2, 0x24, 0xd0, 0xd1, 0x25,
|
||||
0xdb, 0x2f, 0x2e, 0xda, 0x2c, 0xd8, 0xd9, 0x2d, 0x28, 0xdc, 0xdd, 0x29, 0xdf, 0x2b, 0x2a, 0xde,
|
||||
0x8b, 0x7f, 0x7e, 0x8a, 0x7c, 0x88, 0x89, 0x7d, 0x78, 0x8c, 0x8d, 0x79, 0x8f, 0x7b, 0x7a, 0x8e,
|
||||
0x70, 0x84, 0x85, 0x71, 0x87, 0x73, 0x72, 0x86, 0x83, 0x77, 0x76, 0x82, 0x74, 0x80, 0x81, 0x75,
|
||||
0x60, 0x94, 0x95, 0x61, 0x97, 0x63, 0x62, 0x96, 0x93, 0x67, 0x66, 0x92, 0x64, 0x90, 0x91, 0x65,
|
||||
0x9b, 0x6f, 0x6e, 0x9a, 0x6c, 0x98, 0x99, 0x6d, 0x68, 0x9c, 0x9d, 0x69, 0x9f, 0x6b, 0x6a, 0x9e,
|
||||
0x40, 0xb4, 0xb5, 0x41, 0xb7, 0x43, 0x42, 0xb6, 0xb3, 0x47, 0x46, 0xb2, 0x44, 0xb0, 0xb1, 0x45,
|
||||
0xbb, 0x4f, 0x4e, 0xba, 0x4c, 0xb8, 0xb9, 0x4d, 0x48, 0xbc, 0xbd, 0x49, 0xbf, 0x4b, 0x4a, 0xbe,
|
||||
0xab, 0x5f, 0x5e, 0xaa, 0x5c, 0xa8, 0xa9, 0x5d, 0x58, 0xac, 0xad, 0x59, 0xaf, 0x5b, 0x5a, 0xae,
|
||||
0x50, 0xa4, 0xa5, 0x51, 0xa7, 0x53, 0x52, 0xa6, 0xa3, 0x57, 0x56, 0xa2, 0x54, 0xa0, 0xa1, 0x55
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief -------------------------------------------------
|
||||
* poffsets - each row represents the addresses used to calculate a byte of the ECC P
|
||||
* data 86 (*2) ECC P bytes, 24 values represented by each
|
||||
* -------------------------------------------------.
|
||||
*/
|
||||
|
||||
static const uint16_t poffsets[ECC_P_NUM_BYTES][ECC_P_COMP] =
|
||||
{
|
||||
{ 0x000,0x056,0x0ac,0x102,0x158,0x1ae,0x204,0x25a,0x2b0,0x306,0x35c,0x3b2,0x408,0x45e,0x4b4,0x50a,0x560,0x5b6,0x60c,0x662,0x6b8,0x70e,0x764,0x7ba },
|
||||
{ 0x001,0x057,0x0ad,0x103,0x159,0x1af,0x205,0x25b,0x2b1,0x307,0x35d,0x3b3,0x409,0x45f,0x4b5,0x50b,0x561,0x5b7,0x60d,0x663,0x6b9,0x70f,0x765,0x7bb },
|
||||
{ 0x002,0x058,0x0ae,0x104,0x15a,0x1b0,0x206,0x25c,0x2b2,0x308,0x35e,0x3b4,0x40a,0x460,0x4b6,0x50c,0x562,0x5b8,0x60e,0x664,0x6ba,0x710,0x766,0x7bc },
|
||||
{ 0x003,0x059,0x0af,0x105,0x15b,0x1b1,0x207,0x25d,0x2b3,0x309,0x35f,0x3b5,0x40b,0x461,0x4b7,0x50d,0x563,0x5b9,0x60f,0x665,0x6bb,0x711,0x767,0x7bd },
|
||||
{ 0x004,0x05a,0x0b0,0x106,0x15c,0x1b2,0x208,0x25e,0x2b4,0x30a,0x360,0x3b6,0x40c,0x462,0x4b8,0x50e,0x564,0x5ba,0x610,0x666,0x6bc,0x712,0x768,0x7be },
|
||||
{ 0x005,0x05b,0x0b1,0x107,0x15d,0x1b3,0x209,0x25f,0x2b5,0x30b,0x361,0x3b7,0x40d,0x463,0x4b9,0x50f,0x565,0x5bb,0x611,0x667,0x6bd,0x713,0x769,0x7bf },
|
||||
{ 0x006,0x05c,0x0b2,0x108,0x15e,0x1b4,0x20a,0x260,0x2b6,0x30c,0x362,0x3b8,0x40e,0x464,0x4ba,0x510,0x566,0x5bc,0x612,0x668,0x6be,0x714,0x76a,0x7c0 },
|
||||
{ 0x007,0x05d,0x0b3,0x109,0x15f,0x1b5,0x20b,0x261,0x2b7,0x30d,0x363,0x3b9,0x40f,0x465,0x4bb,0x511,0x567,0x5bd,0x613,0x669,0x6bf,0x715,0x76b,0x7c1 },
|
||||
{ 0x008,0x05e,0x0b4,0x10a,0x160,0x1b6,0x20c,0x262,0x2b8,0x30e,0x364,0x3ba,0x410,0x466,0x4bc,0x512,0x568,0x5be,0x614,0x66a,0x6c0,0x716,0x76c,0x7c2 },
|
||||
{ 0x009,0x05f,0x0b5,0x10b,0x161,0x1b7,0x20d,0x263,0x2b9,0x30f,0x365,0x3bb,0x411,0x467,0x4bd,0x513,0x569,0x5bf,0x615,0x66b,0x6c1,0x717,0x76d,0x7c3 },
|
||||
{ 0x00a,0x060,0x0b6,0x10c,0x162,0x1b8,0x20e,0x264,0x2ba,0x310,0x366,0x3bc,0x412,0x468,0x4be,0x514,0x56a,0x5c0,0x616,0x66c,0x6c2,0x718,0x76e,0x7c4 },
|
||||
{ 0x00b,0x061,0x0b7,0x10d,0x163,0x1b9,0x20f,0x265,0x2bb,0x311,0x367,0x3bd,0x413,0x469,0x4bf,0x515,0x56b,0x5c1,0x617,0x66d,0x6c3,0x719,0x76f,0x7c5 },
|
||||
{ 0x00c,0x062,0x0b8,0x10e,0x164,0x1ba,0x210,0x266,0x2bc,0x312,0x368,0x3be,0x414,0x46a,0x4c0,0x516,0x56c,0x5c2,0x618,0x66e,0x6c4,0x71a,0x770,0x7c6 },
|
||||
{ 0x00d,0x063,0x0b9,0x10f,0x165,0x1bb,0x211,0x267,0x2bd,0x313,0x369,0x3bf,0x415,0x46b,0x4c1,0x517,0x56d,0x5c3,0x619,0x66f,0x6c5,0x71b,0x771,0x7c7 },
|
||||
{ 0x00e,0x064,0x0ba,0x110,0x166,0x1bc,0x212,0x268,0x2be,0x314,0x36a,0x3c0,0x416,0x46c,0x4c2,0x518,0x56e,0x5c4,0x61a,0x670,0x6c6,0x71c,0x772,0x7c8 },
|
||||
{ 0x00f,0x065,0x0bb,0x111,0x167,0x1bd,0x213,0x269,0x2bf,0x315,0x36b,0x3c1,0x417,0x46d,0x4c3,0x519,0x56f,0x5c5,0x61b,0x671,0x6c7,0x71d,0x773,0x7c9 },
|
||||
{ 0x010,0x066,0x0bc,0x112,0x168,0x1be,0x214,0x26a,0x2c0,0x316,0x36c,0x3c2,0x418,0x46e,0x4c4,0x51a,0x570,0x5c6,0x61c,0x672,0x6c8,0x71e,0x774,0x7ca },
|
||||
{ 0x011,0x067,0x0bd,0x113,0x169,0x1bf,0x215,0x26b,0x2c1,0x317,0x36d,0x3c3,0x419,0x46f,0x4c5,0x51b,0x571,0x5c7,0x61d,0x673,0x6c9,0x71f,0x775,0x7cb },
|
||||
{ 0x012,0x068,0x0be,0x114,0x16a,0x1c0,0x216,0x26c,0x2c2,0x318,0x36e,0x3c4,0x41a,0x470,0x4c6,0x51c,0x572,0x5c8,0x61e,0x674,0x6ca,0x720,0x776,0x7cc },
|
||||
{ 0x013,0x069,0x0bf,0x115,0x16b,0x1c1,0x217,0x26d,0x2c3,0x319,0x36f,0x3c5,0x41b,0x471,0x4c7,0x51d,0x573,0x5c9,0x61f,0x675,0x6cb,0x721,0x777,0x7cd },
|
||||
{ 0x014,0x06a,0x0c0,0x116,0x16c,0x1c2,0x218,0x26e,0x2c4,0x31a,0x370,0x3c6,0x41c,0x472,0x4c8,0x51e,0x574,0x5ca,0x620,0x676,0x6cc,0x722,0x778,0x7ce },
|
||||
{ 0x015,0x06b,0x0c1,0x117,0x16d,0x1c3,0x219,0x26f,0x2c5,0x31b,0x371,0x3c7,0x41d,0x473,0x4c9,0x51f,0x575,0x5cb,0x621,0x677,0x6cd,0x723,0x779,0x7cf },
|
||||
{ 0x016,0x06c,0x0c2,0x118,0x16e,0x1c4,0x21a,0x270,0x2c6,0x31c,0x372,0x3c8,0x41e,0x474,0x4ca,0x520,0x576,0x5cc,0x622,0x678,0x6ce,0x724,0x77a,0x7d0 },
|
||||
{ 0x017,0x06d,0x0c3,0x119,0x16f,0x1c5,0x21b,0x271,0x2c7,0x31d,0x373,0x3c9,0x41f,0x475,0x4cb,0x521,0x577,0x5cd,0x623,0x679,0x6cf,0x725,0x77b,0x7d1 },
|
||||
{ 0x018,0x06e,0x0c4,0x11a,0x170,0x1c6,0x21c,0x272,0x2c8,0x31e,0x374,0x3ca,0x420,0x476,0x4cc,0x522,0x578,0x5ce,0x624,0x67a,0x6d0,0x726,0x77c,0x7d2 },
|
||||
{ 0x019,0x06f,0x0c5,0x11b,0x171,0x1c7,0x21d,0x273,0x2c9,0x31f,0x375,0x3cb,0x421,0x477,0x4cd,0x523,0x579,0x5cf,0x625,0x67b,0x6d1,0x727,0x77d,0x7d3 },
|
||||
{ 0x01a,0x070,0x0c6,0x11c,0x172,0x1c8,0x21e,0x274,0x2ca,0x320,0x376,0x3cc,0x422,0x478,0x4ce,0x524,0x57a,0x5d0,0x626,0x67c,0x6d2,0x728,0x77e,0x7d4 },
|
||||
{ 0x01b,0x071,0x0c7,0x11d,0x173,0x1c9,0x21f,0x275,0x2cb,0x321,0x377,0x3cd,0x423,0x479,0x4cf,0x525,0x57b,0x5d1,0x627,0x67d,0x6d3,0x729,0x77f,0x7d5 },
|
||||
{ 0x01c,0x072,0x0c8,0x11e,0x174,0x1ca,0x220,0x276,0x2cc,0x322,0x378,0x3ce,0x424,0x47a,0x4d0,0x526,0x57c,0x5d2,0x628,0x67e,0x6d4,0x72a,0x780,0x7d6 },
|
||||
{ 0x01d,0x073,0x0c9,0x11f,0x175,0x1cb,0x221,0x277,0x2cd,0x323,0x379,0x3cf,0x425,0x47b,0x4d1,0x527,0x57d,0x5d3,0x629,0x67f,0x6d5,0x72b,0x781,0x7d7 },
|
||||
{ 0x01e,0x074,0x0ca,0x120,0x176,0x1cc,0x222,0x278,0x2ce,0x324,0x37a,0x3d0,0x426,0x47c,0x4d2,0x528,0x57e,0x5d4,0x62a,0x680,0x6d6,0x72c,0x782,0x7d8 },
|
||||
{ 0x01f,0x075,0x0cb,0x121,0x177,0x1cd,0x223,0x279,0x2cf,0x325,0x37b,0x3d1,0x427,0x47d,0x4d3,0x529,0x57f,0x5d5,0x62b,0x681,0x6d7,0x72d,0x783,0x7d9 },
|
||||
{ 0x020,0x076,0x0cc,0x122,0x178,0x1ce,0x224,0x27a,0x2d0,0x326,0x37c,0x3d2,0x428,0x47e,0x4d4,0x52a,0x580,0x5d6,0x62c,0x682,0x6d8,0x72e,0x784,0x7da },
|
||||
{ 0x021,0x077,0x0cd,0x123,0x179,0x1cf,0x225,0x27b,0x2d1,0x327,0x37d,0x3d3,0x429,0x47f,0x4d5,0x52b,0x581,0x5d7,0x62d,0x683,0x6d9,0x72f,0x785,0x7db },
|
||||
{ 0x022,0x078,0x0ce,0x124,0x17a,0x1d0,0x226,0x27c,0x2d2,0x328,0x37e,0x3d4,0x42a,0x480,0x4d6,0x52c,0x582,0x5d8,0x62e,0x684,0x6da,0x730,0x786,0x7dc },
|
||||
{ 0x023,0x079,0x0cf,0x125,0x17b,0x1d1,0x227,0x27d,0x2d3,0x329,0x37f,0x3d5,0x42b,0x481,0x4d7,0x52d,0x583,0x5d9,0x62f,0x685,0x6db,0x731,0x787,0x7dd },
|
||||
{ 0x024,0x07a,0x0d0,0x126,0x17c,0x1d2,0x228,0x27e,0x2d4,0x32a,0x380,0x3d6,0x42c,0x482,0x4d8,0x52e,0x584,0x5da,0x630,0x686,0x6dc,0x732,0x788,0x7de },
|
||||
{ 0x025,0x07b,0x0d1,0x127,0x17d,0x1d3,0x229,0x27f,0x2d5,0x32b,0x381,0x3d7,0x42d,0x483,0x4d9,0x52f,0x585,0x5db,0x631,0x687,0x6dd,0x733,0x789,0x7df },
|
||||
{ 0x026,0x07c,0x0d2,0x128,0x17e,0x1d4,0x22a,0x280,0x2d6,0x32c,0x382,0x3d8,0x42e,0x484,0x4da,0x530,0x586,0x5dc,0x632,0x688,0x6de,0x734,0x78a,0x7e0 },
|
||||
{ 0x027,0x07d,0x0d3,0x129,0x17f,0x1d5,0x22b,0x281,0x2d7,0x32d,0x383,0x3d9,0x42f,0x485,0x4db,0x531,0x587,0x5dd,0x633,0x689,0x6df,0x735,0x78b,0x7e1 },
|
||||
{ 0x028,0x07e,0x0d4,0x12a,0x180,0x1d6,0x22c,0x282,0x2d8,0x32e,0x384,0x3da,0x430,0x486,0x4dc,0x532,0x588,0x5de,0x634,0x68a,0x6e0,0x736,0x78c,0x7e2 },
|
||||
{ 0x029,0x07f,0x0d5,0x12b,0x181,0x1d7,0x22d,0x283,0x2d9,0x32f,0x385,0x3db,0x431,0x487,0x4dd,0x533,0x589,0x5df,0x635,0x68b,0x6e1,0x737,0x78d,0x7e3 },
|
||||
{ 0x02a,0x080,0x0d6,0x12c,0x182,0x1d8,0x22e,0x284,0x2da,0x330,0x386,0x3dc,0x432,0x488,0x4de,0x534,0x58a,0x5e0,0x636,0x68c,0x6e2,0x738,0x78e,0x7e4 },
|
||||
{ 0x02b,0x081,0x0d7,0x12d,0x183,0x1d9,0x22f,0x285,0x2db,0x331,0x387,0x3dd,0x433,0x489,0x4df,0x535,0x58b,0x5e1,0x637,0x68d,0x6e3,0x739,0x78f,0x7e5 },
|
||||
{ 0x02c,0x082,0x0d8,0x12e,0x184,0x1da,0x230,0x286,0x2dc,0x332,0x388,0x3de,0x434,0x48a,0x4e0,0x536,0x58c,0x5e2,0x638,0x68e,0x6e4,0x73a,0x790,0x7e6 },
|
||||
{ 0x02d,0x083,0x0d9,0x12f,0x185,0x1db,0x231,0x287,0x2dd,0x333,0x389,0x3df,0x435,0x48b,0x4e1,0x537,0x58d,0x5e3,0x639,0x68f,0x6e5,0x73b,0x791,0x7e7 },
|
||||
{ 0x02e,0x084,0x0da,0x130,0x186,0x1dc,0x232,0x288,0x2de,0x334,0x38a,0x3e0,0x436,0x48c,0x4e2,0x538,0x58e,0x5e4,0x63a,0x690,0x6e6,0x73c,0x792,0x7e8 },
|
||||
{ 0x02f,0x085,0x0db,0x131,0x187,0x1dd,0x233,0x289,0x2df,0x335,0x38b,0x3e1,0x437,0x48d,0x4e3,0x539,0x58f,0x5e5,0x63b,0x691,0x6e7,0x73d,0x793,0x7e9 },
|
||||
{ 0x030,0x086,0x0dc,0x132,0x188,0x1de,0x234,0x28a,0x2e0,0x336,0x38c,0x3e2,0x438,0x48e,0x4e4,0x53a,0x590,0x5e6,0x63c,0x692,0x6e8,0x73e,0x794,0x7ea },
|
||||
{ 0x031,0x087,0x0dd,0x133,0x189,0x1df,0x235,0x28b,0x2e1,0x337,0x38d,0x3e3,0x439,0x48f,0x4e5,0x53b,0x591,0x5e7,0x63d,0x693,0x6e9,0x73f,0x795,0x7eb },
|
||||
{ 0x032,0x088,0x0de,0x134,0x18a,0x1e0,0x236,0x28c,0x2e2,0x338,0x38e,0x3e4,0x43a,0x490,0x4e6,0x53c,0x592,0x5e8,0x63e,0x694,0x6ea,0x740,0x796,0x7ec },
|
||||
{ 0x033,0x089,0x0df,0x135,0x18b,0x1e1,0x237,0x28d,0x2e3,0x339,0x38f,0x3e5,0x43b,0x491,0x4e7,0x53d,0x593,0x5e9,0x63f,0x695,0x6eb,0x741,0x797,0x7ed },
|
||||
{ 0x034,0x08a,0x0e0,0x136,0x18c,0x1e2,0x238,0x28e,0x2e4,0x33a,0x390,0x3e6,0x43c,0x492,0x4e8,0x53e,0x594,0x5ea,0x640,0x696,0x6ec,0x742,0x798,0x7ee },
|
||||
{ 0x035,0x08b,0x0e1,0x137,0x18d,0x1e3,0x239,0x28f,0x2e5,0x33b,0x391,0x3e7,0x43d,0x493,0x4e9,0x53f,0x595,0x5eb,0x641,0x697,0x6ed,0x743,0x799,0x7ef },
|
||||
{ 0x036,0x08c,0x0e2,0x138,0x18e,0x1e4,0x23a,0x290,0x2e6,0x33c,0x392,0x3e8,0x43e,0x494,0x4ea,0x540,0x596,0x5ec,0x642,0x698,0x6ee,0x744,0x79a,0x7f0 },
|
||||
{ 0x037,0x08d,0x0e3,0x139,0x18f,0x1e5,0x23b,0x291,0x2e7,0x33d,0x393,0x3e9,0x43f,0x495,0x4eb,0x541,0x597,0x5ed,0x643,0x699,0x6ef,0x745,0x79b,0x7f1 },
|
||||
{ 0x038,0x08e,0x0e4,0x13a,0x190,0x1e6,0x23c,0x292,0x2e8,0x33e,0x394,0x3ea,0x440,0x496,0x4ec,0x542,0x598,0x5ee,0x644,0x69a,0x6f0,0x746,0x79c,0x7f2 },
|
||||
{ 0x039,0x08f,0x0e5,0x13b,0x191,0x1e7,0x23d,0x293,0x2e9,0x33f,0x395,0x3eb,0x441,0x497,0x4ed,0x543,0x599,0x5ef,0x645,0x69b,0x6f1,0x747,0x79d,0x7f3 },
|
||||
{ 0x03a,0x090,0x0e6,0x13c,0x192,0x1e8,0x23e,0x294,0x2ea,0x340,0x396,0x3ec,0x442,0x498,0x4ee,0x544,0x59a,0x5f0,0x646,0x69c,0x6f2,0x748,0x79e,0x7f4 },
|
||||
{ 0x03b,0x091,0x0e7,0x13d,0x193,0x1e9,0x23f,0x295,0x2eb,0x341,0x397,0x3ed,0x443,0x499,0x4ef,0x545,0x59b,0x5f1,0x647,0x69d,0x6f3,0x749,0x79f,0x7f5 },
|
||||
{ 0x03c,0x092,0x0e8,0x13e,0x194,0x1ea,0x240,0x296,0x2ec,0x342,0x398,0x3ee,0x444,0x49a,0x4f0,0x546,0x59c,0x5f2,0x648,0x69e,0x6f4,0x74a,0x7a0,0x7f6 },
|
||||
{ 0x03d,0x093,0x0e9,0x13f,0x195,0x1eb,0x241,0x297,0x2ed,0x343,0x399,0x3ef,0x445,0x49b,0x4f1,0x547,0x59d,0x5f3,0x649,0x69f,0x6f5,0x74b,0x7a1,0x7f7 },
|
||||
{ 0x03e,0x094,0x0ea,0x140,0x196,0x1ec,0x242,0x298,0x2ee,0x344,0x39a,0x3f0,0x446,0x49c,0x4f2,0x548,0x59e,0x5f4,0x64a,0x6a0,0x6f6,0x74c,0x7a2,0x7f8 },
|
||||
{ 0x03f,0x095,0x0eb,0x141,0x197,0x1ed,0x243,0x299,0x2ef,0x345,0x39b,0x3f1,0x447,0x49d,0x4f3,0x549,0x59f,0x5f5,0x64b,0x6a1,0x6f7,0x74d,0x7a3,0x7f9 },
|
||||
{ 0x040,0x096,0x0ec,0x142,0x198,0x1ee,0x244,0x29a,0x2f0,0x346,0x39c,0x3f2,0x448,0x49e,0x4f4,0x54a,0x5a0,0x5f6,0x64c,0x6a2,0x6f8,0x74e,0x7a4,0x7fa },
|
||||
{ 0x041,0x097,0x0ed,0x143,0x199,0x1ef,0x245,0x29b,0x2f1,0x347,0x39d,0x3f3,0x449,0x49f,0x4f5,0x54b,0x5a1,0x5f7,0x64d,0x6a3,0x6f9,0x74f,0x7a5,0x7fb },
|
||||
{ 0x042,0x098,0x0ee,0x144,0x19a,0x1f0,0x246,0x29c,0x2f2,0x348,0x39e,0x3f4,0x44a,0x4a0,0x4f6,0x54c,0x5a2,0x5f8,0x64e,0x6a4,0x6fa,0x750,0x7a6,0x7fc },
|
||||
{ 0x043,0x099,0x0ef,0x145,0x19b,0x1f1,0x247,0x29d,0x2f3,0x349,0x39f,0x3f5,0x44b,0x4a1,0x4f7,0x54d,0x5a3,0x5f9,0x64f,0x6a5,0x6fb,0x751,0x7a7,0x7fd },
|
||||
{ 0x044,0x09a,0x0f0,0x146,0x19c,0x1f2,0x248,0x29e,0x2f4,0x34a,0x3a0,0x3f6,0x44c,0x4a2,0x4f8,0x54e,0x5a4,0x5fa,0x650,0x6a6,0x6fc,0x752,0x7a8,0x7fe },
|
||||
{ 0x045,0x09b,0x0f1,0x147,0x19d,0x1f3,0x249,0x29f,0x2f5,0x34b,0x3a1,0x3f7,0x44d,0x4a3,0x4f9,0x54f,0x5a5,0x5fb,0x651,0x6a7,0x6fd,0x753,0x7a9,0x7ff },
|
||||
{ 0x046,0x09c,0x0f2,0x148,0x19e,0x1f4,0x24a,0x2a0,0x2f6,0x34c,0x3a2,0x3f8,0x44e,0x4a4,0x4fa,0x550,0x5a6,0x5fc,0x652,0x6a8,0x6fe,0x754,0x7aa,0x800 },
|
||||
{ 0x047,0x09d,0x0f3,0x149,0x19f,0x1f5,0x24b,0x2a1,0x2f7,0x34d,0x3a3,0x3f9,0x44f,0x4a5,0x4fb,0x551,0x5a7,0x5fd,0x653,0x6a9,0x6ff,0x755,0x7ab,0x801 },
|
||||
{ 0x048,0x09e,0x0f4,0x14a,0x1a0,0x1f6,0x24c,0x2a2,0x2f8,0x34e,0x3a4,0x3fa,0x450,0x4a6,0x4fc,0x552,0x5a8,0x5fe,0x654,0x6aa,0x700,0x756,0x7ac,0x802 },
|
||||
{ 0x049,0x09f,0x0f5,0x14b,0x1a1,0x1f7,0x24d,0x2a3,0x2f9,0x34f,0x3a5,0x3fb,0x451,0x4a7,0x4fd,0x553,0x5a9,0x5ff,0x655,0x6ab,0x701,0x757,0x7ad,0x803 },
|
||||
{ 0x04a,0x0a0,0x0f6,0x14c,0x1a2,0x1f8,0x24e,0x2a4,0x2fa,0x350,0x3a6,0x3fc,0x452,0x4a8,0x4fe,0x554,0x5aa,0x600,0x656,0x6ac,0x702,0x758,0x7ae,0x804 },
|
||||
{ 0x04b,0x0a1,0x0f7,0x14d,0x1a3,0x1f9,0x24f,0x2a5,0x2fb,0x351,0x3a7,0x3fd,0x453,0x4a9,0x4ff,0x555,0x5ab,0x601,0x657,0x6ad,0x703,0x759,0x7af,0x805 },
|
||||
{ 0x04c,0x0a2,0x0f8,0x14e,0x1a4,0x1fa,0x250,0x2a6,0x2fc,0x352,0x3a8,0x3fe,0x454,0x4aa,0x500,0x556,0x5ac,0x602,0x658,0x6ae,0x704,0x75a,0x7b0,0x806 },
|
||||
{ 0x04d,0x0a3,0x0f9,0x14f,0x1a5,0x1fb,0x251,0x2a7,0x2fd,0x353,0x3a9,0x3ff,0x455,0x4ab,0x501,0x557,0x5ad,0x603,0x659,0x6af,0x705,0x75b,0x7b1,0x807 },
|
||||
{ 0x04e,0x0a4,0x0fa,0x150,0x1a6,0x1fc,0x252,0x2a8,0x2fe,0x354,0x3aa,0x400,0x456,0x4ac,0x502,0x558,0x5ae,0x604,0x65a,0x6b0,0x706,0x75c,0x7b2,0x808 },
|
||||
{ 0x04f,0x0a5,0x0fb,0x151,0x1a7,0x1fd,0x253,0x2a9,0x2ff,0x355,0x3ab,0x401,0x457,0x4ad,0x503,0x559,0x5af,0x605,0x65b,0x6b1,0x707,0x75d,0x7b3,0x809 },
|
||||
{ 0x050,0x0a6,0x0fc,0x152,0x1a8,0x1fe,0x254,0x2aa,0x300,0x356,0x3ac,0x402,0x458,0x4ae,0x504,0x55a,0x5b0,0x606,0x65c,0x6b2,0x708,0x75e,0x7b4,0x80a },
|
||||
{ 0x051,0x0a7,0x0fd,0x153,0x1a9,0x1ff,0x255,0x2ab,0x301,0x357,0x3ad,0x403,0x459,0x4af,0x505,0x55b,0x5b1,0x607,0x65d,0x6b3,0x709,0x75f,0x7b5,0x80b },
|
||||
{ 0x052,0x0a8,0x0fe,0x154,0x1aa,0x200,0x256,0x2ac,0x302,0x358,0x3ae,0x404,0x45a,0x4b0,0x506,0x55c,0x5b2,0x608,0x65e,0x6b4,0x70a,0x760,0x7b6,0x80c },
|
||||
{ 0x053,0x0a9,0x0ff,0x155,0x1ab,0x201,0x257,0x2ad,0x303,0x359,0x3af,0x405,0x45b,0x4b1,0x507,0x55d,0x5b3,0x609,0x65f,0x6b5,0x70b,0x761,0x7b7,0x80d },
|
||||
{ 0x054,0x0aa,0x100,0x156,0x1ac,0x202,0x258,0x2ae,0x304,0x35a,0x3b0,0x406,0x45c,0x4b2,0x508,0x55e,0x5b4,0x60a,0x660,0x6b6,0x70c,0x762,0x7b8,0x80e },
|
||||
{ 0x055,0x0ab,0x101,0x157,0x1ad,0x203,0x259,0x2af,0x305,0x35b,0x3b1,0x407,0x45d,0x4b3,0x509,0x55f,0x5b5,0x60b,0x661,0x6b7,0x70d,0x763,0x7b9,0x80f }
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief -------------------------------------------------
|
||||
* qoffsets - each row represents the addresses used to calculate a byte of the ECC Q
|
||||
* data 52 (*2) ECC Q bytes, 43 values represented by each
|
||||
* -------------------------------------------------.
|
||||
*/
|
||||
|
||||
static const uint16_t qoffsets[ECC_Q_NUM_BYTES][ECC_Q_COMP] =
|
||||
{
|
||||
{ 0x000,0x058,0x0b0,0x108,0x160,0x1b8,0x210,0x268,0x2c0,0x318,0x370,0x3c8,0x420,0x478,0x4d0,0x528,0x580,0x5d8,0x630,0x688,0x6e0,0x738,0x790,0x7e8,0x840,0x898,0x034,0x08c,0x0e4,0x13c,0x194,0x1ec,0x244,0x29c,0x2f4,0x34c,0x3a4,0x3fc,0x454,0x4ac,0x504,0x55c,0x5b4 },
|
||||
{ 0x001,0x059,0x0b1,0x109,0x161,0x1b9,0x211,0x269,0x2c1,0x319,0x371,0x3c9,0x421,0x479,0x4d1,0x529,0x581,0x5d9,0x631,0x689,0x6e1,0x739,0x791,0x7e9,0x841,0x899,0x035,0x08d,0x0e5,0x13d,0x195,0x1ed,0x245,0x29d,0x2f5,0x34d,0x3a5,0x3fd,0x455,0x4ad,0x505,0x55d,0x5b5 },
|
||||
{ 0x056,0x0ae,0x106,0x15e,0x1b6,0x20e,0x266,0x2be,0x316,0x36e,0x3c6,0x41e,0x476,0x4ce,0x526,0x57e,0x5d6,0x62e,0x686,0x6de,0x736,0x78e,0x7e6,0x83e,0x896,0x032,0x08a,0x0e2,0x13a,0x192,0x1ea,0x242,0x29a,0x2f2,0x34a,0x3a2,0x3fa,0x452,0x4aa,0x502,0x55a,0x5b2,0x60a },
|
||||
{ 0x057,0x0af,0x107,0x15f,0x1b7,0x20f,0x267,0x2bf,0x317,0x36f,0x3c7,0x41f,0x477,0x4cf,0x527,0x57f,0x5d7,0x62f,0x687,0x6df,0x737,0x78f,0x7e7,0x83f,0x897,0x033,0x08b,0x0e3,0x13b,0x193,0x1eb,0x243,0x29b,0x2f3,0x34b,0x3a3,0x3fb,0x453,0x4ab,0x503,0x55b,0x5b3,0x60b },
|
||||
{ 0x0ac,0x104,0x15c,0x1b4,0x20c,0x264,0x2bc,0x314,0x36c,0x3c4,0x41c,0x474,0x4cc,0x524,0x57c,0x5d4,0x62c,0x684,0x6dc,0x734,0x78c,0x7e4,0x83c,0x894,0x030,0x088,0x0e0,0x138,0x190,0x1e8,0x240,0x298,0x2f0,0x348,0x3a0,0x3f8,0x450,0x4a8,0x500,0x558,0x5b0,0x608,0x660 },
|
||||
{ 0x0ad,0x105,0x15d,0x1b5,0x20d,0x265,0x2bd,0x315,0x36d,0x3c5,0x41d,0x475,0x4cd,0x525,0x57d,0x5d5,0x62d,0x685,0x6dd,0x735,0x78d,0x7e5,0x83d,0x895,0x031,0x089,0x0e1,0x139,0x191,0x1e9,0x241,0x299,0x2f1,0x349,0x3a1,0x3f9,0x451,0x4a9,0x501,0x559,0x5b1,0x609,0x661 },
|
||||
{ 0x102,0x15a,0x1b2,0x20a,0x262,0x2ba,0x312,0x36a,0x3c2,0x41a,0x472,0x4ca,0x522,0x57a,0x5d2,0x62a,0x682,0x6da,0x732,0x78a,0x7e2,0x83a,0x892,0x02e,0x086,0x0de,0x136,0x18e,0x1e6,0x23e,0x296,0x2ee,0x346,0x39e,0x3f6,0x44e,0x4a6,0x4fe,0x556,0x5ae,0x606,0x65e,0x6b6 },
|
||||
{ 0x103,0x15b,0x1b3,0x20b,0x263,0x2bb,0x313,0x36b,0x3c3,0x41b,0x473,0x4cb,0x523,0x57b,0x5d3,0x62b,0x683,0x6db,0x733,0x78b,0x7e3,0x83b,0x893,0x02f,0x087,0x0df,0x137,0x18f,0x1e7,0x23f,0x297,0x2ef,0x347,0x39f,0x3f7,0x44f,0x4a7,0x4ff,0x557,0x5af,0x607,0x65f,0x6b7 },
|
||||
{ 0x158,0x1b0,0x208,0x260,0x2b8,0x310,0x368,0x3c0,0x418,0x470,0x4c8,0x520,0x578,0x5d0,0x628,0x680,0x6d8,0x730,0x788,0x7e0,0x838,0x890,0x02c,0x084,0x0dc,0x134,0x18c,0x1e4,0x23c,0x294,0x2ec,0x344,0x39c,0x3f4,0x44c,0x4a4,0x4fc,0x554,0x5ac,0x604,0x65c,0x6b4,0x70c },
|
||||
{ 0x159,0x1b1,0x209,0x261,0x2b9,0x311,0x369,0x3c1,0x419,0x471,0x4c9,0x521,0x579,0x5d1,0x629,0x681,0x6d9,0x731,0x789,0x7e1,0x839,0x891,0x02d,0x085,0x0dd,0x135,0x18d,0x1e5,0x23d,0x295,0x2ed,0x345,0x39d,0x3f5,0x44d,0x4a5,0x4fd,0x555,0x5ad,0x605,0x65d,0x6b5,0x70d },
|
||||
{ 0x1ae,0x206,0x25e,0x2b6,0x30e,0x366,0x3be,0x416,0x46e,0x4c6,0x51e,0x576,0x5ce,0x626,0x67e,0x6d6,0x72e,0x786,0x7de,0x836,0x88e,0x02a,0x082,0x0da,0x132,0x18a,0x1e2,0x23a,0x292,0x2ea,0x342,0x39a,0x3f2,0x44a,0x4a2,0x4fa,0x552,0x5aa,0x602,0x65a,0x6b2,0x70a,0x762 },
|
||||
{ 0x1af,0x207,0x25f,0x2b7,0x30f,0x367,0x3bf,0x417,0x46f,0x4c7,0x51f,0x577,0x5cf,0x627,0x67f,0x6d7,0x72f,0x787,0x7df,0x837,0x88f,0x02b,0x083,0x0db,0x133,0x18b,0x1e3,0x23b,0x293,0x2eb,0x343,0x39b,0x3f3,0x44b,0x4a3,0x4fb,0x553,0x5ab,0x603,0x65b,0x6b3,0x70b,0x763 },
|
||||
{ 0x204,0x25c,0x2b4,0x30c,0x364,0x3bc,0x414,0x46c,0x4c4,0x51c,0x574,0x5cc,0x624,0x67c,0x6d4,0x72c,0x784,0x7dc,0x834,0x88c,0x028,0x080,0x0d8,0x130,0x188,0x1e0,0x238,0x290,0x2e8,0x340,0x398,0x3f0,0x448,0x4a0,0x4f8,0x550,0x5a8,0x600,0x658,0x6b0,0x708,0x760,0x7b8 },
|
||||
{ 0x205,0x25d,0x2b5,0x30d,0x365,0x3bd,0x415,0x46d,0x4c5,0x51d,0x575,0x5cd,0x625,0x67d,0x6d5,0x72d,0x785,0x7dd,0x835,0x88d,0x029,0x081,0x0d9,0x131,0x189,0x1e1,0x239,0x291,0x2e9,0x341,0x399,0x3f1,0x449,0x4a1,0x4f9,0x551,0x5a9,0x601,0x659,0x6b1,0x709,0x761,0x7b9 },
|
||||
{ 0x25a,0x2b2,0x30a,0x362,0x3ba,0x412,0x46a,0x4c2,0x51a,0x572,0x5ca,0x622,0x67a,0x6d2,0x72a,0x782,0x7da,0x832,0x88a,0x026,0x07e,0x0d6,0x12e,0x186,0x1de,0x236,0x28e,0x2e6,0x33e,0x396,0x3ee,0x446,0x49e,0x4f6,0x54e,0x5a6,0x5fe,0x656,0x6ae,0x706,0x75e,0x7b6,0x80e },
|
||||
{ 0x25b,0x2b3,0x30b,0x363,0x3bb,0x413,0x46b,0x4c3,0x51b,0x573,0x5cb,0x623,0x67b,0x6d3,0x72b,0x783,0x7db,0x833,0x88b,0x027,0x07f,0x0d7,0x12f,0x187,0x1df,0x237,0x28f,0x2e7,0x33f,0x397,0x3ef,0x447,0x49f,0x4f7,0x54f,0x5a7,0x5ff,0x657,0x6af,0x707,0x75f,0x7b7,0x80f },
|
||||
{ 0x2b0,0x308,0x360,0x3b8,0x410,0x468,0x4c0,0x518,0x570,0x5c8,0x620,0x678,0x6d0,0x728,0x780,0x7d8,0x830,0x888,0x024,0x07c,0x0d4,0x12c,0x184,0x1dc,0x234,0x28c,0x2e4,0x33c,0x394,0x3ec,0x444,0x49c,0x4f4,0x54c,0x5a4,0x5fc,0x654,0x6ac,0x704,0x75c,0x7b4,0x80c,0x864 },
|
||||
{ 0x2b1,0x309,0x361,0x3b9,0x411,0x469,0x4c1,0x519,0x571,0x5c9,0x621,0x679,0x6d1,0x729,0x781,0x7d9,0x831,0x889,0x025,0x07d,0x0d5,0x12d,0x185,0x1dd,0x235,0x28d,0x2e5,0x33d,0x395,0x3ed,0x445,0x49d,0x4f5,0x54d,0x5a5,0x5fd,0x655,0x6ad,0x705,0x75d,0x7b5,0x80d,0x865 },
|
||||
{ 0x306,0x35e,0x3b6,0x40e,0x466,0x4be,0x516,0x56e,0x5c6,0x61e,0x676,0x6ce,0x726,0x77e,0x7d6,0x82e,0x886,0x022,0x07a,0x0d2,0x12a,0x182,0x1da,0x232,0x28a,0x2e2,0x33a,0x392,0x3ea,0x442,0x49a,0x4f2,0x54a,0x5a2,0x5fa,0x652,0x6aa,0x702,0x75a,0x7b2,0x80a,0x862,0x8ba },
|
||||
{ 0x307,0x35f,0x3b7,0x40f,0x467,0x4bf,0x517,0x56f,0x5c7,0x61f,0x677,0x6cf,0x727,0x77f,0x7d7,0x82f,0x887,0x023,0x07b,0x0d3,0x12b,0x183,0x1db,0x233,0x28b,0x2e3,0x33b,0x393,0x3eb,0x443,0x49b,0x4f3,0x54b,0x5a3,0x5fb,0x653,0x6ab,0x703,0x75b,0x7b3,0x80b,0x863,0x8bb },
|
||||
{ 0x35c,0x3b4,0x40c,0x464,0x4bc,0x514,0x56c,0x5c4,0x61c,0x674,0x6cc,0x724,0x77c,0x7d4,0x82c,0x884,0x020,0x078,0x0d0,0x128,0x180,0x1d8,0x230,0x288,0x2e0,0x338,0x390,0x3e8,0x440,0x498,0x4f0,0x548,0x5a0,0x5f8,0x650,0x6a8,0x700,0x758,0x7b0,0x808,0x860,0x8b8,0x054 },
|
||||
{ 0x35d,0x3b5,0x40d,0x465,0x4bd,0x515,0x56d,0x5c5,0x61d,0x675,0x6cd,0x725,0x77d,0x7d5,0x82d,0x885,0x021,0x079,0x0d1,0x129,0x181,0x1d9,0x231,0x289,0x2e1,0x339,0x391,0x3e9,0x441,0x499,0x4f1,0x549,0x5a1,0x5f9,0x651,0x6a9,0x701,0x759,0x7b1,0x809,0x861,0x8b9,0x055 },
|
||||
{ 0x3b2,0x40a,0x462,0x4ba,0x512,0x56a,0x5c2,0x61a,0x672,0x6ca,0x722,0x77a,0x7d2,0x82a,0x882,0x01e,0x076,0x0ce,0x126,0x17e,0x1d6,0x22e,0x286,0x2de,0x336,0x38e,0x3e6,0x43e,0x496,0x4ee,0x546,0x59e,0x5f6,0x64e,0x6a6,0x6fe,0x756,0x7ae,0x806,0x85e,0x8b6,0x052,0x0aa },
|
||||
{ 0x3b3,0x40b,0x463,0x4bb,0x513,0x56b,0x5c3,0x61b,0x673,0x6cb,0x723,0x77b,0x7d3,0x82b,0x883,0x01f,0x077,0x0cf,0x127,0x17f,0x1d7,0x22f,0x287,0x2df,0x337,0x38f,0x3e7,0x43f,0x497,0x4ef,0x547,0x59f,0x5f7,0x64f,0x6a7,0x6ff,0x757,0x7af,0x807,0x85f,0x8b7,0x053,0x0ab },
|
||||
{ 0x408,0x460,0x4b8,0x510,0x568,0x5c0,0x618,0x670,0x6c8,0x720,0x778,0x7d0,0x828,0x880,0x01c,0x074,0x0cc,0x124,0x17c,0x1d4,0x22c,0x284,0x2dc,0x334,0x38c,0x3e4,0x43c,0x494,0x4ec,0x544,0x59c,0x5f4,0x64c,0x6a4,0x6fc,0x754,0x7ac,0x804,0x85c,0x8b4,0x050,0x0a8,0x100 },
|
||||
{ 0x409,0x461,0x4b9,0x511,0x569,0x5c1,0x619,0x671,0x6c9,0x721,0x779,0x7d1,0x829,0x881,0x01d,0x075,0x0cd,0x125,0x17d,0x1d5,0x22d,0x285,0x2dd,0x335,0x38d,0x3e5,0x43d,0x495,0x4ed,0x545,0x59d,0x5f5,0x64d,0x6a5,0x6fd,0x755,0x7ad,0x805,0x85d,0x8b5,0x051,0x0a9,0x101 },
|
||||
{ 0x45e,0x4b6,0x50e,0x566,0x5be,0x616,0x66e,0x6c6,0x71e,0x776,0x7ce,0x826,0x87e,0x01a,0x072,0x0ca,0x122,0x17a,0x1d2,0x22a,0x282,0x2da,0x332,0x38a,0x3e2,0x43a,0x492,0x4ea,0x542,0x59a,0x5f2,0x64a,0x6a2,0x6fa,0x752,0x7aa,0x802,0x85a,0x8b2,0x04e,0x0a6,0x0fe,0x156 },
|
||||
{ 0x45f,0x4b7,0x50f,0x567,0x5bf,0x617,0x66f,0x6c7,0x71f,0x777,0x7cf,0x827,0x87f,0x01b,0x073,0x0cb,0x123,0x17b,0x1d3,0x22b,0x283,0x2db,0x333,0x38b,0x3e3,0x43b,0x493,0x4eb,0x543,0x59b,0x5f3,0x64b,0x6a3,0x6fb,0x753,0x7ab,0x803,0x85b,0x8b3,0x04f,0x0a7,0x0ff,0x157 },
|
||||
{ 0x4b4,0x50c,0x564,0x5bc,0x614,0x66c,0x6c4,0x71c,0x774,0x7cc,0x824,0x87c,0x018,0x070,0x0c8,0x120,0x178,0x1d0,0x228,0x280,0x2d8,0x330,0x388,0x3e0,0x438,0x490,0x4e8,0x540,0x598,0x5f0,0x648,0x6a0,0x6f8,0x750,0x7a8,0x800,0x858,0x8b0,0x04c,0x0a4,0x0fc,0x154,0x1ac },
|
||||
{ 0x4b5,0x50d,0x565,0x5bd,0x615,0x66d,0x6c5,0x71d,0x775,0x7cd,0x825,0x87d,0x019,0x071,0x0c9,0x121,0x179,0x1d1,0x229,0x281,0x2d9,0x331,0x389,0x3e1,0x439,0x491,0x4e9,0x541,0x599,0x5f1,0x649,0x6a1,0x6f9,0x751,0x7a9,0x801,0x859,0x8b1,0x04d,0x0a5,0x0fd,0x155,0x1ad },
|
||||
{ 0x50a,0x562,0x5ba,0x612,0x66a,0x6c2,0x71a,0x772,0x7ca,0x822,0x87a,0x016,0x06e,0x0c6,0x11e,0x176,0x1ce,0x226,0x27e,0x2d6,0x32e,0x386,0x3de,0x436,0x48e,0x4e6,0x53e,0x596,0x5ee,0x646,0x69e,0x6f6,0x74e,0x7a6,0x7fe,0x856,0x8ae,0x04a,0x0a2,0x0fa,0x152,0x1aa,0x202 },
|
||||
{ 0x50b,0x563,0x5bb,0x613,0x66b,0x6c3,0x71b,0x773,0x7cb,0x823,0x87b,0x017,0x06f,0x0c7,0x11f,0x177,0x1cf,0x227,0x27f,0x2d7,0x32f,0x387,0x3df,0x437,0x48f,0x4e7,0x53f,0x597,0x5ef,0x647,0x69f,0x6f7,0x74f,0x7a7,0x7ff,0x857,0x8af,0x04b,0x0a3,0x0fb,0x153,0x1ab,0x203 },
|
||||
{ 0x560,0x5b8,0x610,0x668,0x6c0,0x718,0x770,0x7c8,0x820,0x878,0x014,0x06c,0x0c4,0x11c,0x174,0x1cc,0x224,0x27c,0x2d4,0x32c,0x384,0x3dc,0x434,0x48c,0x4e4,0x53c,0x594,0x5ec,0x644,0x69c,0x6f4,0x74c,0x7a4,0x7fc,0x854,0x8ac,0x048,0x0a0,0x0f8,0x150,0x1a8,0x200,0x258 },
|
||||
{ 0x561,0x5b9,0x611,0x669,0x6c1,0x719,0x771,0x7c9,0x821,0x879,0x015,0x06d,0x0c5,0x11d,0x175,0x1cd,0x225,0x27d,0x2d5,0x32d,0x385,0x3dd,0x435,0x48d,0x4e5,0x53d,0x595,0x5ed,0x645,0x69d,0x6f5,0x74d,0x7a5,0x7fd,0x855,0x8ad,0x049,0x0a1,0x0f9,0x151,0x1a9,0x201,0x259 },
|
||||
{ 0x5b6,0x60e,0x666,0x6be,0x716,0x76e,0x7c6,0x81e,0x876,0x012,0x06a,0x0c2,0x11a,0x172,0x1ca,0x222,0x27a,0x2d2,0x32a,0x382,0x3da,0x432,0x48a,0x4e2,0x53a,0x592,0x5ea,0x642,0x69a,0x6f2,0x74a,0x7a2,0x7fa,0x852,0x8aa,0x046,0x09e,0x0f6,0x14e,0x1a6,0x1fe,0x256,0x2ae },
|
||||
{ 0x5b7,0x60f,0x667,0x6bf,0x717,0x76f,0x7c7,0x81f,0x877,0x013,0x06b,0x0c3,0x11b,0x173,0x1cb,0x223,0x27b,0x2d3,0x32b,0x383,0x3db,0x433,0x48b,0x4e3,0x53b,0x593,0x5eb,0x643,0x69b,0x6f3,0x74b,0x7a3,0x7fb,0x853,0x8ab,0x047,0x09f,0x0f7,0x14f,0x1a7,0x1ff,0x257,0x2af },
|
||||
{ 0x60c,0x664,0x6bc,0x714,0x76c,0x7c4,0x81c,0x874,0x010,0x068,0x0c0,0x118,0x170,0x1c8,0x220,0x278,0x2d0,0x328,0x380,0x3d8,0x430,0x488,0x4e0,0x538,0x590,0x5e8,0x640,0x698,0x6f0,0x748,0x7a0,0x7f8,0x850,0x8a8,0x044,0x09c,0x0f4,0x14c,0x1a4,0x1fc,0x254,0x2ac,0x304 },
|
||||
{ 0x60d,0x665,0x6bd,0x715,0x76d,0x7c5,0x81d,0x875,0x011,0x069,0x0c1,0x119,0x171,0x1c9,0x221,0x279,0x2d1,0x329,0x381,0x3d9,0x431,0x489,0x4e1,0x539,0x591,0x5e9,0x641,0x699,0x6f1,0x749,0x7a1,0x7f9,0x851,0x8a9,0x045,0x09d,0x0f5,0x14d,0x1a5,0x1fd,0x255,0x2ad,0x305 },
|
||||
{ 0x662,0x6ba,0x712,0x76a,0x7c2,0x81a,0x872,0x00e,0x066,0x0be,0x116,0x16e,0x1c6,0x21e,0x276,0x2ce,0x326,0x37e,0x3d6,0x42e,0x486,0x4de,0x536,0x58e,0x5e6,0x63e,0x696,0x6ee,0x746,0x79e,0x7f6,0x84e,0x8a6,0x042,0x09a,0x0f2,0x14a,0x1a2,0x1fa,0x252,0x2aa,0x302,0x35a },
|
||||
{ 0x663,0x6bb,0x713,0x76b,0x7c3,0x81b,0x873,0x00f,0x067,0x0bf,0x117,0x16f,0x1c7,0x21f,0x277,0x2cf,0x327,0x37f,0x3d7,0x42f,0x487,0x4df,0x537,0x58f,0x5e7,0x63f,0x697,0x6ef,0x747,0x79f,0x7f7,0x84f,0x8a7,0x043,0x09b,0x0f3,0x14b,0x1a3,0x1fb,0x253,0x2ab,0x303,0x35b },
|
||||
{ 0x6b8,0x710,0x768,0x7c0,0x818,0x870,0x00c,0x064,0x0bc,0x114,0x16c,0x1c4,0x21c,0x274,0x2cc,0x324,0x37c,0x3d4,0x42c,0x484,0x4dc,0x534,0x58c,0x5e4,0x63c,0x694,0x6ec,0x744,0x79c,0x7f4,0x84c,0x8a4,0x040,0x098,0x0f0,0x148,0x1a0,0x1f8,0x250,0x2a8,0x300,0x358,0x3b0 },
|
||||
{ 0x6b9,0x711,0x769,0x7c1,0x819,0x871,0x00d,0x065,0x0bd,0x115,0x16d,0x1c5,0x21d,0x275,0x2cd,0x325,0x37d,0x3d5,0x42d,0x485,0x4dd,0x535,0x58d,0x5e5,0x63d,0x695,0x6ed,0x745,0x79d,0x7f5,0x84d,0x8a5,0x041,0x099,0x0f1,0x149,0x1a1,0x1f9,0x251,0x2a9,0x301,0x359,0x3b1 },
|
||||
{ 0x70e,0x766,0x7be,0x816,0x86e,0x00a,0x062,0x0ba,0x112,0x16a,0x1c2,0x21a,0x272,0x2ca,0x322,0x37a,0x3d2,0x42a,0x482,0x4da,0x532,0x58a,0x5e2,0x63a,0x692,0x6ea,0x742,0x79a,0x7f2,0x84a,0x8a2,0x03e,0x096,0x0ee,0x146,0x19e,0x1f6,0x24e,0x2a6,0x2fe,0x356,0x3ae,0x406 },
|
||||
{ 0x70f,0x767,0x7bf,0x817,0x86f,0x00b,0x063,0x0bb,0x113,0x16b,0x1c3,0x21b,0x273,0x2cb,0x323,0x37b,0x3d3,0x42b,0x483,0x4db,0x533,0x58b,0x5e3,0x63b,0x693,0x6eb,0x743,0x79b,0x7f3,0x84b,0x8a3,0x03f,0x097,0x0ef,0x147,0x19f,0x1f7,0x24f,0x2a7,0x2ff,0x357,0x3af,0x407 },
|
||||
{ 0x764,0x7bc,0x814,0x86c,0x008,0x060,0x0b8,0x110,0x168,0x1c0,0x218,0x270,0x2c8,0x320,0x378,0x3d0,0x428,0x480,0x4d8,0x530,0x588,0x5e0,0x638,0x690,0x6e8,0x740,0x798,0x7f0,0x848,0x8a0,0x03c,0x094,0x0ec,0x144,0x19c,0x1f4,0x24c,0x2a4,0x2fc,0x354,0x3ac,0x404,0x45c },
|
||||
{ 0x765,0x7bd,0x815,0x86d,0x009,0x061,0x0b9,0x111,0x169,0x1c1,0x219,0x271,0x2c9,0x321,0x379,0x3d1,0x429,0x481,0x4d9,0x531,0x589,0x5e1,0x639,0x691,0x6e9,0x741,0x799,0x7f1,0x849,0x8a1,0x03d,0x095,0x0ed,0x145,0x19d,0x1f5,0x24d,0x2a5,0x2fd,0x355,0x3ad,0x405,0x45d },
|
||||
{ 0x7ba,0x812,0x86a,0x006,0x05e,0x0b6,0x10e,0x166,0x1be,0x216,0x26e,0x2c6,0x31e,0x376,0x3ce,0x426,0x47e,0x4d6,0x52e,0x586,0x5de,0x636,0x68e,0x6e6,0x73e,0x796,0x7ee,0x846,0x89e,0x03a,0x092,0x0ea,0x142,0x19a,0x1f2,0x24a,0x2a2,0x2fa,0x352,0x3aa,0x402,0x45a,0x4b2 },
|
||||
{ 0x7bb,0x813,0x86b,0x007,0x05f,0x0b7,0x10f,0x167,0x1bf,0x217,0x26f,0x2c7,0x31f,0x377,0x3cf,0x427,0x47f,0x4d7,0x52f,0x587,0x5df,0x637,0x68f,0x6e7,0x73f,0x797,0x7ef,0x847,0x89f,0x03b,0x093,0x0eb,0x143,0x19b,0x1f3,0x24b,0x2a3,0x2fb,0x353,0x3ab,0x403,0x45b,0x4b3 },
|
||||
{ 0x810,0x868,0x004,0x05c,0x0b4,0x10c,0x164,0x1bc,0x214,0x26c,0x2c4,0x31c,0x374,0x3cc,0x424,0x47c,0x4d4,0x52c,0x584,0x5dc,0x634,0x68c,0x6e4,0x73c,0x794,0x7ec,0x844,0x89c,0x038,0x090,0x0e8,0x140,0x198,0x1f0,0x248,0x2a0,0x2f8,0x350,0x3a8,0x400,0x458,0x4b0,0x508 },
|
||||
{ 0x811,0x869,0x005,0x05d,0x0b5,0x10d,0x165,0x1bd,0x215,0x26d,0x2c5,0x31d,0x375,0x3cd,0x425,0x47d,0x4d5,0x52d,0x585,0x5dd,0x635,0x68d,0x6e5,0x73d,0x795,0x7ed,0x845,0x89d,0x039,0x091,0x0e9,0x141,0x199,0x1f1,0x249,0x2a1,0x2f9,0x351,0x3a9,0x401,0x459,0x4b1,0x509 },
|
||||
{ 0x866,0x002,0x05a,0x0b2,0x10a,0x162,0x1ba,0x212,0x26a,0x2c2,0x31a,0x372,0x3ca,0x422,0x47a,0x4d2,0x52a,0x582,0x5da,0x632,0x68a,0x6e2,0x73a,0x792,0x7ea,0x842,0x89a,0x036,0x08e,0x0e6,0x13e,0x196,0x1ee,0x246,0x29e,0x2f6,0x34e,0x3a6,0x3fe,0x456,0x4ae,0x506,0x55e },
|
||||
{ 0x867,0x003,0x05b,0x0b3,0x10b,0x163,0x1bb,0x213,0x26b,0x2c3,0x31b,0x373,0x3cb,0x423,0x47b,0x4d3,0x52b,0x583,0x5db,0x633,0x68b,0x6e3,0x73b,0x793,0x7eb,0x843,0x89b,0x037,0x08f,0x0e7,0x13f,0x197,0x1ef,0x247,0x29f,0x2f7,0x34f,0x3a7,0x3ff,0x457,0x4af,0x507,0x55f }
|
||||
};
|
||||
|
||||
/*-------------------------------------------------
|
||||
* ecc_source_byte - return data from the sector
|
||||
* at the given offset, masking anything
|
||||
* particular to a mode
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
static inline uint8_t ecc_source_byte(const uint8_t *sector, uint32_t offset)
|
||||
{
|
||||
/* in mode 2 always treat these as 0 bytes */
|
||||
return (sector[MODE_OFFSET] == 2 && offset < 4) ? 0x00 : sector[SYNC_OFFSET + SYNC_NUM_BYTES + offset];
|
||||
}
|
||||
|
||||
/**
|
||||
* @fn void ecc_compute_bytes(const uint8_t *sector, const uint16_t *row, int rowlen, uint8_t &val1, uint8_t &val2)
|
||||
*
|
||||
* @brief -------------------------------------------------
|
||||
* ecc_compute_bytes - calculate an ECC value (P or Q)
|
||||
* -------------------------------------------------.
|
||||
*
|
||||
* @param sector The sector.
|
||||
* @param row The row.
|
||||
* @param rowlen The rowlen.
|
||||
* @param [in,out] val1 The first value.
|
||||
* @param [in,out] val2 The second value.
|
||||
*/
|
||||
|
||||
void ecc_compute_bytes(const uint8_t *sector, const uint16_t *row, int rowlen, uint8_t *val1, uint8_t *val2)
|
||||
{
|
||||
int component;
|
||||
*val1 = *val2 = 0;
|
||||
for (component = 0; component < rowlen; component++)
|
||||
{
|
||||
*val1 ^= ecc_source_byte(sector, row[component]);
|
||||
*val2 ^= ecc_source_byte(sector, row[component]);
|
||||
*val1 = ecclow[*val1];
|
||||
}
|
||||
*val1 = ecchigh[ecclow[*val1] ^ *val2];
|
||||
*val2 ^= *val1;
|
||||
}
|
||||
|
||||
/**
|
||||
* @fn int ecc_verify(const uint8_t *sector)
|
||||
*
|
||||
* @brief -------------------------------------------------
|
||||
* ecc_verify - verify the P and Q ECC codes in a sector
|
||||
* -------------------------------------------------.
|
||||
*
|
||||
* @param sector The sector.
|
||||
*
|
||||
* @return true if it succeeds, false if it fails.
|
||||
*/
|
||||
|
||||
int ecc_verify(const uint8_t *sector)
|
||||
{
|
||||
int byte;
|
||||
/* first verify P bytes */
|
||||
for (byte = 0; byte < ECC_P_NUM_BYTES; byte++)
|
||||
{
|
||||
uint8_t val1, val2;
|
||||
ecc_compute_bytes(sector, poffsets[byte], ECC_P_COMP, &val1, &val2);
|
||||
if (sector[ECC_P_OFFSET + byte] != val1 || sector[ECC_P_OFFSET + ECC_P_NUM_BYTES + byte] != val2)
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* then verify Q bytes */
|
||||
for (byte = 0; byte < ECC_Q_NUM_BYTES; byte++)
|
||||
{
|
||||
uint8_t val1, val2;
|
||||
ecc_compute_bytes(sector, qoffsets[byte], ECC_Q_COMP, &val1, &val2);
|
||||
if (sector[ECC_Q_OFFSET + byte] != val1 || sector[ECC_Q_OFFSET + ECC_Q_NUM_BYTES + byte] != val2)
|
||||
return 0;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
/**
|
||||
* @fn void ecc_generate(uint8_t *sector)
|
||||
*
|
||||
* @brief -------------------------------------------------
|
||||
* ecc_generate - generate the P and Q ECC codes for a sector, overwriting any
|
||||
* existing codes
|
||||
* -------------------------------------------------.
|
||||
*
|
||||
* @param [in,out] sector If non-null, the sector.
|
||||
*/
|
||||
|
||||
void ecc_generate(uint8_t *sector)
|
||||
{
|
||||
int byte;
|
||||
/* first verify P bytes */
|
||||
for (byte = 0; byte < ECC_P_NUM_BYTES; byte++)
|
||||
ecc_compute_bytes(sector, poffsets[byte], ECC_P_COMP, §or[ECC_P_OFFSET + byte], §or[ECC_P_OFFSET + ECC_P_NUM_BYTES + byte]);
|
||||
|
||||
/* then verify Q bytes */
|
||||
for (byte = 0; byte < ECC_Q_NUM_BYTES; byte++)
|
||||
ecc_compute_bytes(sector, qoffsets[byte], ECC_Q_COMP, §or[ECC_Q_OFFSET + byte], §or[ECC_Q_OFFSET + ECC_Q_NUM_BYTES + byte]);
|
||||
}
|
||||
|
||||
/**
|
||||
* @fn void ecc_clear(uint8_t *sector)
|
||||
*
|
||||
* @brief -------------------------------------------------
|
||||
* ecc_clear - erase the ECC P and Q cods to 0 within a sector
|
||||
* -------------------------------------------------.
|
||||
*
|
||||
* @param [in,out] sector If non-null, the sector.
|
||||
*/
|
||||
|
||||
void ecc_clear(uint8_t *sector)
|
||||
{
|
||||
memset(§or[ECC_P_OFFSET], 0, 2 * ECC_P_NUM_BYTES);
|
||||
memset(§or[ECC_Q_OFFSET], 0, 2 * ECC_Q_NUM_BYTES);
|
||||
}
|
||||
|
||||
#endif /* WANT_RAW_DATA_SECTOR */
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,303 @@
|
|||
/* license:BSD-3-Clause
|
||||
* copyright-holders:Aaron Giles
|
||||
***************************************************************************
|
||||
|
||||
flac.c
|
||||
|
||||
FLAC compression wrappers
|
||||
|
||||
***************************************************************************/
|
||||
|
||||
#include <string.h>
|
||||
|
||||
#include <libchdr/flac.h>
|
||||
#define DR_FLAC_IMPLEMENTATION
|
||||
#define DR_FLAC_NO_STDIO
|
||||
#include <dr_libs/dr_flac.h>
|
||||
|
||||
/***************************************************************************
|
||||
* FLAC DECODER
|
||||
***************************************************************************
|
||||
*/
|
||||
|
||||
static size_t flac_decoder_read_callback(void *userdata, void *buffer, size_t bytes);
|
||||
static drflac_bool32 flac_decoder_seek_callback(void *userdata, int offset, drflac_seek_origin origin);
|
||||
static void flac_decoder_metadata_callback(void *userdata, drflac_metadata *metadata);
|
||||
static void flac_decoder_write_callback(void *userdata, void *buffer, size_t bytes);
|
||||
|
||||
|
||||
/* getters (valid after reset) */
|
||||
static uint32_t sample_rate(flac_decoder *decoder) { return decoder->sample_rate; }
|
||||
static uint8_t channels(flac_decoder *decoder) { return decoder->channels; }
|
||||
static uint8_t bits_per_sample(flac_decoder *decoder) { return decoder->bits_per_sample; }
|
||||
|
||||
/*-------------------------------------------------
|
||||
* flac_decoder - constructor
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
int flac_decoder_init(flac_decoder *decoder)
|
||||
{
|
||||
decoder->decoder = NULL;
|
||||
decoder->sample_rate = 0;
|
||||
decoder->channels = 0;
|
||||
decoder->bits_per_sample = 0;
|
||||
decoder->compressed_offset = 0;
|
||||
decoder->compressed_start = NULL;
|
||||
decoder->compressed_length = 0;
|
||||
decoder->compressed2_start = NULL;
|
||||
decoder->compressed2_length = 0;
|
||||
decoder->uncompressed_offset = 0;
|
||||
decoder->uncompressed_length = 0;
|
||||
decoder->uncompressed_swap = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
* flac_decoder - destructor
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
void flac_decoder_free(flac_decoder* decoder)
|
||||
{
|
||||
if ((decoder != NULL) && (decoder->decoder != NULL)) {
|
||||
drflac_close(decoder->decoder);
|
||||
decoder->decoder = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
* reset - reset state with the original
|
||||
* parameters
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
static int flac_decoder_internal_reset(flac_decoder* decoder)
|
||||
{
|
||||
decoder->compressed_offset = 0;
|
||||
flac_decoder_free(decoder);
|
||||
decoder->decoder = drflac_open_with_metadata(
|
||||
flac_decoder_read_callback, flac_decoder_seek_callback,
|
||||
flac_decoder_metadata_callback, decoder, NULL);
|
||||
return (decoder->decoder != NULL);
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
* reset - reset state with new memory parameters
|
||||
* and a custom-generated header
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
int flac_decoder_reset(flac_decoder* decoder, uint32_t sample_rate, uint8_t num_channels, uint32_t block_size, const void *buffer, uint32_t length)
|
||||
{
|
||||
/* modify the template header with our parameters */
|
||||
static const uint8_t s_header_template[0x2a] =
|
||||
{
|
||||
0x66, 0x4C, 0x61, 0x43, /* +00: 'fLaC' stream header */
|
||||
0x80, /* +04: metadata block type 0 (STREAMINFO), */
|
||||
/* flagged as last block */
|
||||
0x00, 0x00, 0x22, /* +05: metadata block length = 0x22 */
|
||||
0x00, 0x00, /* +08: minimum block size */
|
||||
0x00, 0x00, /* +0A: maximum block size */
|
||||
0x00, 0x00, 0x00, /* +0C: minimum frame size (0 == unknown) */
|
||||
0x00, 0x00, 0x00, /* +0F: maximum frame size (0 == unknown) */
|
||||
0x0A, 0xC4, 0x42, 0xF0, 0x00, 0x00, 0x00, 0x00, /* +12: sample rate (0x0ac44 == 44100), */
|
||||
/* numchannels (2), sample bits (16), */
|
||||
/* samples in stream (0 == unknown) */
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* +1A: MD5 signature (0 == none) */
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 /* +2A: start of stream data */
|
||||
};
|
||||
memcpy(decoder->custom_header, s_header_template, sizeof(s_header_template));
|
||||
decoder->custom_header[0x08] = decoder->custom_header[0x0a] = (block_size*num_channels) >> 8;
|
||||
decoder->custom_header[0x09] = decoder->custom_header[0x0b] = (block_size*num_channels) & 0xff;
|
||||
decoder->custom_header[0x12] = sample_rate >> 12;
|
||||
decoder->custom_header[0x13] = sample_rate >> 4;
|
||||
decoder->custom_header[0x14] = (sample_rate << 4) | ((num_channels - 1) << 1);
|
||||
|
||||
/* configure the header ahead of the provided buffer */
|
||||
decoder->compressed_start = (const uint8_t *)(decoder->custom_header);
|
||||
decoder->compressed_length = sizeof(decoder->custom_header);
|
||||
decoder->compressed2_start = (const uint8_t *)(buffer);
|
||||
decoder->compressed2_length = length;
|
||||
return flac_decoder_internal_reset(decoder);
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
* decode_interleaved - decode to an interleaved
|
||||
* sound stream
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
int flac_decoder_decode_interleaved(flac_decoder* decoder, int16_t *samples, uint32_t num_samples, int swap_endian)
|
||||
{
|
||||
/* configure the uncompressed buffer */
|
||||
memset(decoder->uncompressed_start, 0, sizeof(decoder->uncompressed_start));
|
||||
decoder->uncompressed_start[0] = samples;
|
||||
decoder->uncompressed_offset = 0;
|
||||
decoder->uncompressed_length = num_samples;
|
||||
decoder->uncompressed_swap = swap_endian;
|
||||
|
||||
#define BUFFER 2352 /* bytes per CD audio sector */
|
||||
int16_t buffer[BUFFER];
|
||||
uint32_t buf_samples = BUFFER / channels(decoder);
|
||||
/* loop until we get everything we want */
|
||||
while (decoder->uncompressed_offset < decoder->uncompressed_length) {
|
||||
uint32_t frames = (num_samples < buf_samples ? num_samples : buf_samples);
|
||||
if (!drflac_read_pcm_frames_s16(decoder->decoder, frames, buffer))
|
||||
return 0;
|
||||
flac_decoder_write_callback(decoder, buffer, frames*sizeof(*buffer)*channels(decoder));
|
||||
num_samples -= frames;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
* finish - finish up the decode
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
uint32_t flac_decoder_finish(flac_decoder* decoder)
|
||||
{
|
||||
/* get the final decoding position and move forward */
|
||||
drflac *flac = decoder->decoder;
|
||||
uint64_t position = decoder->compressed_offset;
|
||||
|
||||
/* ugh... there's no function to obtain bytes used in drflac :-/ */
|
||||
position -= DRFLAC_CACHE_L2_LINES_REMAINING(&flac->bs) * sizeof(drflac_cache_t);
|
||||
position -= DRFLAC_CACHE_L1_BITS_REMAINING(&flac->bs) / 8;
|
||||
position -= flac->bs.unalignedByteCount;
|
||||
|
||||
/* adjust position if we provided the header */
|
||||
if (position == 0)
|
||||
return 0;
|
||||
if (decoder->compressed_start == (const uint8_t *)(decoder->custom_header))
|
||||
position -= decoder->compressed_length;
|
||||
|
||||
flac_decoder_free(decoder);
|
||||
return position;
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
* read_callback - handle reads from the input
|
||||
* stream
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
#define MIN(x, y) ((x) < (y) ? (x) : (y))
|
||||
|
||||
static size_t flac_decoder_read_callback(void *userdata, void *buffer, size_t bytes)
|
||||
{
|
||||
flac_decoder* decoder = (flac_decoder*)userdata;
|
||||
uint8_t *dst = buffer;
|
||||
|
||||
/* copy from primary buffer first */
|
||||
uint32_t outputpos = 0;
|
||||
if (outputpos < bytes && decoder->compressed_offset < decoder->compressed_length)
|
||||
{
|
||||
uint32_t bytes_to_copy = MIN(bytes - outputpos, decoder->compressed_length - decoder->compressed_offset);
|
||||
memcpy(&dst[outputpos], decoder->compressed_start + decoder->compressed_offset, bytes_to_copy);
|
||||
outputpos += bytes_to_copy;
|
||||
decoder->compressed_offset += bytes_to_copy;
|
||||
}
|
||||
|
||||
/* once we're out of that, copy from the secondary buffer */
|
||||
if (outputpos < bytes && decoder->compressed_offset < decoder->compressed_length + decoder->compressed2_length)
|
||||
{
|
||||
uint32_t bytes_to_copy = MIN(bytes - outputpos, decoder->compressed2_length - (decoder->compressed_offset - decoder->compressed_length));
|
||||
memcpy(&dst[outputpos], decoder->compressed2_start + decoder->compressed_offset - decoder->compressed_length, bytes_to_copy);
|
||||
outputpos += bytes_to_copy;
|
||||
decoder->compressed_offset += bytes_to_copy;
|
||||
}
|
||||
|
||||
return outputpos;
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
* metadata_callback - handle STREAMINFO metadata
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
static void flac_decoder_metadata_callback(void *userdata, drflac_metadata *metadata)
|
||||
{
|
||||
flac_decoder *decoder = userdata;
|
||||
|
||||
/* ignore all but STREAMINFO metadata */
|
||||
if (metadata->type != DRFLAC_METADATA_BLOCK_TYPE_STREAMINFO)
|
||||
return;
|
||||
|
||||
/* parse out the data we care about */
|
||||
decoder->sample_rate = metadata->data.streaminfo.sampleRate;
|
||||
decoder->bits_per_sample = metadata->data.streaminfo.bitsPerSample;
|
||||
decoder->channels = metadata->data.streaminfo.channels;
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
* write_callback - handle writes to the output
|
||||
* stream
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
static void flac_decoder_write_callback(void *userdata, void *buffer, size_t bytes)
|
||||
{
|
||||
int sampnum, chan;
|
||||
int shift, blocksize;
|
||||
flac_decoder * decoder = (flac_decoder *)userdata;
|
||||
int16_t *sampbuf = (int16_t *)buffer;
|
||||
int sampch = channels(decoder);
|
||||
uint32_t offset = decoder->uncompressed_offset;
|
||||
uint16_t usample;
|
||||
|
||||
/* interleaved case */
|
||||
shift = decoder->uncompressed_swap ? 8 : 0;
|
||||
blocksize = bytes / (sampch * sizeof(sampbuf[0]));
|
||||
if (decoder->uncompressed_start[1] == NULL)
|
||||
{
|
||||
int16_t *dest = decoder->uncompressed_start[0] + offset * sampch;
|
||||
for (sampnum = 0; sampnum < blocksize && offset < decoder->uncompressed_length; sampnum++, offset++)
|
||||
for (chan = 0; chan < sampch; chan++) {
|
||||
usample = (uint16_t)*sampbuf++;
|
||||
*dest++ = (int16_t)((usample << shift) | (usample >> shift));
|
||||
}
|
||||
}
|
||||
|
||||
/* non-interleaved case */
|
||||
else
|
||||
{
|
||||
for (sampnum = 0; sampnum < blocksize && offset < decoder->uncompressed_length; sampnum++, offset++)
|
||||
for (chan = 0; chan < sampch; chan++) {
|
||||
usample = (uint16_t)*sampbuf++;
|
||||
if (decoder->uncompressed_start[chan] != NULL)
|
||||
decoder->uncompressed_start[chan][offset] = (int16_t) ((usample << shift) | (usample >> shift));
|
||||
}
|
||||
}
|
||||
decoder->uncompressed_offset = offset;
|
||||
}
|
||||
|
||||
|
||||
/*-------------------------------------------------
|
||||
* seek_callback - handle seeks on the output
|
||||
* stream
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
static drflac_bool32 flac_decoder_seek_callback(void *userdata, int offset, drflac_seek_origin origin)
|
||||
{
|
||||
flac_decoder * decoder = (flac_decoder *)userdata;
|
||||
uint32_t length = decoder->compressed_length + decoder->compressed2_length;
|
||||
|
||||
if (origin == drflac_seek_origin_start) {
|
||||
uint32_t pos = offset;
|
||||
if (pos <= length) {
|
||||
decoder->compressed_offset = pos;
|
||||
return 1;
|
||||
}
|
||||
} else if (origin == drflac_seek_origin_current) {
|
||||
uint32_t pos = decoder->compressed_offset + offset;
|
||||
if (pos <= length) {
|
||||
decoder->compressed_offset = pos;
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,547 @@
|
|||
/* license:BSD-3-Clause
|
||||
* copyright-holders:Aaron Giles
|
||||
****************************************************************************
|
||||
|
||||
huffman.c
|
||||
|
||||
Static Huffman compression and decompression helpers.
|
||||
|
||||
****************************************************************************
|
||||
|
||||
Maximum codelength is officially (alphabetsize - 1). This would be 255 bits
|
||||
(since we use 1 byte values). However, it is also dependent upon the number
|
||||
of samples used, as follows:
|
||||
|
||||
2 bits -> 3..4 samples
|
||||
3 bits -> 5..7 samples
|
||||
4 bits -> 8..12 samples
|
||||
5 bits -> 13..20 samples
|
||||
6 bits -> 21..33 samples
|
||||
7 bits -> 34..54 samples
|
||||
8 bits -> 55..88 samples
|
||||
9 bits -> 89..143 samples
|
||||
10 bits -> 144..232 samples
|
||||
11 bits -> 233..376 samples
|
||||
12 bits -> 377..609 samples
|
||||
13 bits -> 610..986 samples
|
||||
14 bits -> 987..1596 samples
|
||||
15 bits -> 1597..2583 samples
|
||||
16 bits -> 2584..4180 samples -> note that a 4k data size guarantees codelength <= 16 bits
|
||||
17 bits -> 4181..6764 samples
|
||||
18 bits -> 6765..10945 samples
|
||||
19 bits -> 10946..17710 samples
|
||||
20 bits -> 17711..28656 samples
|
||||
21 bits -> 28657..46367 samples
|
||||
22 bits -> 46368..75024 samples
|
||||
23 bits -> 75025..121392 samples
|
||||
24 bits -> 121393..196417 samples
|
||||
25 bits -> 196418..317810 samples
|
||||
26 bits -> 317811..514228 samples
|
||||
27 bits -> 514229..832039 samples
|
||||
28 bits -> 832040..1346268 samples
|
||||
29 bits -> 1346269..2178308 samples
|
||||
30 bits -> 2178309..3524577 samples
|
||||
31 bits -> 3524578..5702886 samples
|
||||
32 bits -> 5702887..9227464 samples
|
||||
|
||||
Looking at it differently, here is where powers of 2 fall into these buckets:
|
||||
|
||||
256 samples -> 11 bits max
|
||||
512 samples -> 12 bits max
|
||||
1k samples -> 14 bits max
|
||||
2k samples -> 15 bits max
|
||||
4k samples -> 16 bits max
|
||||
8k samples -> 18 bits max
|
||||
16k samples -> 19 bits max
|
||||
32k samples -> 21 bits max
|
||||
64k samples -> 22 bits max
|
||||
128k samples -> 24 bits max
|
||||
256k samples -> 25 bits max
|
||||
512k samples -> 27 bits max
|
||||
1M samples -> 28 bits max
|
||||
2M samples -> 29 bits max
|
||||
4M samples -> 31 bits max
|
||||
8M samples -> 32 bits max
|
||||
|
||||
****************************************************************************
|
||||
|
||||
Delta-RLE encoding works as follows:
|
||||
|
||||
Starting value is assumed to be 0. All data is encoded as a delta
|
||||
from the previous value, such that final[i] = final[i - 1] + delta.
|
||||
Long runs of 0s are RLE-encoded as follows:
|
||||
|
||||
0x100 = repeat count of 8
|
||||
0x101 = repeat count of 9
|
||||
0x102 = repeat count of 10
|
||||
0x103 = repeat count of 11
|
||||
0x104 = repeat count of 12
|
||||
0x105 = repeat count of 13
|
||||
0x106 = repeat count of 14
|
||||
0x107 = repeat count of 15
|
||||
0x108 = repeat count of 16
|
||||
0x109 = repeat count of 32
|
||||
0x10a = repeat count of 64
|
||||
0x10b = repeat count of 128
|
||||
0x10c = repeat count of 256
|
||||
0x10d = repeat count of 512
|
||||
0x10e = repeat count of 1024
|
||||
0x10f = repeat count of 2048
|
||||
|
||||
Note that repeat counts are reset at the end of a row, so if a 0 run
|
||||
extends to the end of a row, a large repeat count may be used.
|
||||
|
||||
The reason for starting the run counts at 8 is that 0 is expected to
|
||||
be the most common symbol, and is typically encoded in 1 or 2 bits.
|
||||
|
||||
***************************************************************************/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
#include <libchdr/huffman.h>
|
||||
|
||||
#define MAX(x,y) ((x) > (y) ? (x) : (y))
|
||||
|
||||
/***************************************************************************
|
||||
* MACROS
|
||||
***************************************************************************
|
||||
*/
|
||||
|
||||
#define MAKE_LOOKUP(code,bits) (((code) << 5) | ((bits) & 0x1f))
|
||||
|
||||
/***************************************************************************
|
||||
* IMPLEMENTATION
|
||||
***************************************************************************
|
||||
*/
|
||||
|
||||
/*-------------------------------------------------
|
||||
* huffman_context_base - create an encoding/
|
||||
* decoding context
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
struct huffman_decoder* create_huffman_decoder(int numcodes, int maxbits)
|
||||
{
|
||||
struct huffman_decoder* decoder = NULL;
|
||||
|
||||
/* limit to 24 bits */
|
||||
if (maxbits > 24)
|
||||
return NULL;
|
||||
|
||||
decoder = (struct huffman_decoder*)malloc(sizeof(struct huffman_decoder));
|
||||
decoder->numcodes = numcodes;
|
||||
decoder->maxbits = maxbits;
|
||||
decoder->lookup = (lookup_value*)malloc(sizeof(lookup_value) * (1 << maxbits));
|
||||
decoder->huffnode = (struct node_t*)malloc(sizeof(struct node_t) * numcodes);
|
||||
decoder->datahisto = NULL;
|
||||
decoder->prevdata = 0;
|
||||
decoder->rleremaining = 0;
|
||||
return decoder;
|
||||
}
|
||||
|
||||
void delete_huffman_decoder(struct huffman_decoder* decoder)
|
||||
{
|
||||
if (decoder != NULL)
|
||||
{
|
||||
if (decoder->lookup != NULL)
|
||||
free(decoder->lookup);
|
||||
if (decoder->huffnode != NULL)
|
||||
free(decoder->huffnode);
|
||||
free(decoder);
|
||||
}
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
* decode_one - decode a single code from the
|
||||
* huffman stream
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
uint32_t huffman_decode_one(struct huffman_decoder* decoder, struct bitstream* bitbuf)
|
||||
{
|
||||
/* peek ahead to get maxbits worth of data */
|
||||
uint32_t bits = bitstream_peek(bitbuf, decoder->maxbits);
|
||||
|
||||
/* look it up, then remove the actual number of bits for this code */
|
||||
lookup_value lookup = decoder->lookup[bits];
|
||||
bitstream_remove(bitbuf, lookup & 0x1f);
|
||||
|
||||
/* return the value */
|
||||
return lookup >> 5;
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
* import_tree_rle - import an RLE-encoded
|
||||
* huffman tree from a source data stream
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
enum huffman_error huffman_import_tree_rle(struct huffman_decoder* decoder, struct bitstream* bitbuf)
|
||||
{
|
||||
int numbits;
|
||||
uint32_t curnode;
|
||||
enum huffman_error error;
|
||||
|
||||
/* bits per entry depends on the maxbits */
|
||||
if (decoder->maxbits >= 16)
|
||||
numbits = 5;
|
||||
else if (decoder->maxbits >= 8)
|
||||
numbits = 4;
|
||||
else
|
||||
numbits = 3;
|
||||
|
||||
/* loop until we read all the nodes */
|
||||
for (curnode = 0; curnode < decoder->numcodes; )
|
||||
{
|
||||
/* a non-one value is just raw */
|
||||
int nodebits = bitstream_read(bitbuf, numbits);
|
||||
if (nodebits != 1)
|
||||
decoder->huffnode[curnode++].numbits = nodebits;
|
||||
|
||||
/* a one value is an escape code */
|
||||
else
|
||||
{
|
||||
/* a double 1 is just a single 1 */
|
||||
nodebits = bitstream_read(bitbuf, numbits);
|
||||
if (nodebits == 1)
|
||||
decoder->huffnode[curnode++].numbits = nodebits;
|
||||
|
||||
/* otherwise, we need one for value for the repeat count */
|
||||
else
|
||||
{
|
||||
int repcount = bitstream_read(bitbuf, numbits) + 3;
|
||||
if (repcount + curnode > decoder->numcodes)
|
||||
return HUFFERR_INVALID_DATA;
|
||||
while (repcount--)
|
||||
decoder->huffnode[curnode++].numbits = nodebits;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* make sure we ended up with the right number */
|
||||
if (curnode != decoder->numcodes)
|
||||
return HUFFERR_INVALID_DATA;
|
||||
|
||||
/* assign canonical codes for all nodes based on their code lengths */
|
||||
error = huffman_assign_canonical_codes(decoder);
|
||||
if (error != HUFFERR_NONE)
|
||||
return error;
|
||||
|
||||
/* build the lookup table */
|
||||
huffman_build_lookup_table(decoder);
|
||||
|
||||
/* determine final input length and report errors */
|
||||
return bitstream_overflow(bitbuf) ? HUFFERR_INPUT_BUFFER_TOO_SMALL : HUFFERR_NONE;
|
||||
}
|
||||
|
||||
|
||||
/*-------------------------------------------------
|
||||
* import_tree_huffman - import a huffman-encoded
|
||||
* huffman tree from a source data stream
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
enum huffman_error huffman_import_tree_huffman(struct huffman_decoder* decoder, struct bitstream* bitbuf)
|
||||
{
|
||||
int start;
|
||||
int last = 0;
|
||||
int count = 0;
|
||||
int index;
|
||||
uint32_t curcode;
|
||||
uint8_t rlefullbits = 0;
|
||||
uint32_t temp;
|
||||
enum huffman_error error;
|
||||
/* start by parsing the lengths for the small tree */
|
||||
struct huffman_decoder* smallhuff = create_huffman_decoder(24, 6);
|
||||
smallhuff->huffnode[0].numbits = bitstream_read(bitbuf, 3);
|
||||
start = bitstream_read(bitbuf, 3) + 1;
|
||||
for (index = 1; index < 24; index++)
|
||||
{
|
||||
if (index < start || count == 7)
|
||||
smallhuff->huffnode[index].numbits = 0;
|
||||
else
|
||||
{
|
||||
count = bitstream_read(bitbuf, 3);
|
||||
smallhuff->huffnode[index].numbits = (count == 7) ? 0 : count;
|
||||
}
|
||||
}
|
||||
|
||||
/* then regenerate the tree */
|
||||
error = huffman_assign_canonical_codes(smallhuff);
|
||||
if (error != HUFFERR_NONE)
|
||||
return error;
|
||||
huffman_build_lookup_table(smallhuff);
|
||||
|
||||
/* determine the maximum length of an RLE count */
|
||||
temp = decoder->numcodes - 9;
|
||||
while (temp != 0)
|
||||
temp >>= 1, rlefullbits++;
|
||||
|
||||
/* now process the rest of the data */
|
||||
for (curcode = 0; curcode < decoder->numcodes; )
|
||||
{
|
||||
int value = huffman_decode_one(smallhuff, bitbuf);
|
||||
if (value != 0)
|
||||
decoder->huffnode[curcode++].numbits = last = value - 1;
|
||||
else
|
||||
{
|
||||
int count = bitstream_read(bitbuf, 3) + 2;
|
||||
if (count == 7+2)
|
||||
count += bitstream_read(bitbuf, rlefullbits);
|
||||
for ( ; count != 0 && curcode < decoder->numcodes; count--)
|
||||
decoder->huffnode[curcode++].numbits = last;
|
||||
}
|
||||
}
|
||||
|
||||
/* make sure we ended up with the right number */
|
||||
if (curcode != decoder->numcodes)
|
||||
return HUFFERR_INVALID_DATA;
|
||||
|
||||
/* assign canonical codes for all nodes based on their code lengths */
|
||||
error = huffman_assign_canonical_codes(decoder);
|
||||
if (error != HUFFERR_NONE)
|
||||
return error;
|
||||
|
||||
/* build the lookup table */
|
||||
huffman_build_lookup_table(decoder);
|
||||
|
||||
/* determine final input length and report errors */
|
||||
return bitstream_overflow(bitbuf) ? HUFFERR_INPUT_BUFFER_TOO_SMALL : HUFFERR_NONE;
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
* compute_tree_from_histo - common backend for
|
||||
* computing a tree based on the data histogram
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
enum huffman_error huffman_compute_tree_from_histo(struct huffman_decoder* decoder)
|
||||
{
|
||||
uint32_t i;
|
||||
uint32_t lowerweight;
|
||||
uint32_t upperweight;
|
||||
/* compute the number of data items in the histogram */
|
||||
uint32_t sdatacount = 0;
|
||||
for (i = 0; i < decoder->numcodes; i++)
|
||||
sdatacount += decoder->datahisto[i];
|
||||
|
||||
/* binary search to achieve the optimum encoding */
|
||||
lowerweight = 0;
|
||||
upperweight = sdatacount * 2;
|
||||
while (1)
|
||||
{
|
||||
/* build a tree using the current weight */
|
||||
uint32_t curweight = (upperweight + lowerweight) / 2;
|
||||
int curmaxbits = huffman_build_tree(decoder, sdatacount, curweight);
|
||||
|
||||
/* apply binary search here */
|
||||
if (curmaxbits <= decoder->maxbits)
|
||||
{
|
||||
lowerweight = curweight;
|
||||
|
||||
/* early out if it worked with the raw weights, or if we're done searching */
|
||||
if (curweight == sdatacount || (upperweight - lowerweight) <= 1)
|
||||
break;
|
||||
}
|
||||
else
|
||||
upperweight = curweight;
|
||||
}
|
||||
|
||||
/* assign canonical codes for all nodes based on their code lengths */
|
||||
return huffman_assign_canonical_codes(decoder);
|
||||
}
|
||||
|
||||
/***************************************************************************
|
||||
* INTERNAL FUNCTIONS
|
||||
***************************************************************************
|
||||
*/
|
||||
|
||||
/*-------------------------------------------------
|
||||
* tree_node_compare - compare two tree nodes
|
||||
* by weight
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
static int huffman_tree_node_compare(const void *item1, const void *item2)
|
||||
{
|
||||
const struct node_t *node1 = *(const struct node_t **)item1;
|
||||
const struct node_t *node2 = *(const struct node_t **)item2;
|
||||
if (node2->weight != node1->weight)
|
||||
return node2->weight - node1->weight;
|
||||
if (node2->bits - node1->bits == 0)
|
||||
fprintf(stderr, "identical node sort keys, should not happen!\n");
|
||||
return (int)node1->bits - (int)node2->bits;
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
* build_tree - build a huffman tree based on the
|
||||
* data distribution
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
int huffman_build_tree(struct huffman_decoder* decoder, uint32_t totaldata, uint32_t totalweight)
|
||||
{
|
||||
uint32_t curcode;
|
||||
int nextalloc;
|
||||
int listitems = 0;
|
||||
int maxbits = 0;
|
||||
/* make a list of all non-zero nodes */
|
||||
struct node_t** list = (struct node_t**)malloc(sizeof(struct node_t*) * decoder->numcodes * 2);
|
||||
memset(decoder->huffnode, 0, decoder->numcodes * sizeof(decoder->huffnode[0]));
|
||||
for (curcode = 0; curcode < decoder->numcodes; curcode++)
|
||||
if (decoder->datahisto[curcode] != 0)
|
||||
{
|
||||
list[listitems++] = &decoder->huffnode[curcode];
|
||||
decoder->huffnode[curcode].count = decoder->datahisto[curcode];
|
||||
decoder->huffnode[curcode].bits = curcode;
|
||||
|
||||
/* scale the weight by the current effective length, ensuring we don't go to 0 */
|
||||
decoder->huffnode[curcode].weight = ((uint64_t)decoder->datahisto[curcode]) * ((uint64_t)totalweight) / ((uint64_t)totaldata);
|
||||
if (decoder->huffnode[curcode].weight == 0)
|
||||
decoder->huffnode[curcode].weight = 1;
|
||||
}
|
||||
|
||||
#if 0
|
||||
fprintf(stderr, "Pre-sort:\n");
|
||||
for (int i = 0; i < listitems; i++) {
|
||||
fprintf(stderr, "weight: %d code: %d\n", list[i]->m_weight, list[i]->m_bits);
|
||||
}
|
||||
#endif
|
||||
|
||||
/* sort the list by weight, largest weight first */
|
||||
qsort(&list[0], listitems, sizeof(list[0]), huffman_tree_node_compare);
|
||||
|
||||
#if 0
|
||||
fprintf(stderr, "Post-sort:\n");
|
||||
for (int i = 0; i < listitems; i++) {
|
||||
fprintf(stderr, "weight: %d code: %d\n", list[i]->m_weight, list[i]->m_bits);
|
||||
}
|
||||
fprintf(stderr, "===================\n");
|
||||
#endif
|
||||
|
||||
/* now build the tree */
|
||||
nextalloc = decoder->numcodes;
|
||||
while (listitems > 1)
|
||||
{
|
||||
int curitem;
|
||||
/* remove lowest two items */
|
||||
struct node_t* node1 = &(*list[--listitems]);
|
||||
struct node_t* node0 = &(*list[--listitems]);
|
||||
|
||||
/* create new node */
|
||||
struct node_t* newnode = &decoder->huffnode[nextalloc++];
|
||||
newnode->parent = NULL;
|
||||
node0->parent = node1->parent = newnode;
|
||||
newnode->weight = node0->weight + node1->weight;
|
||||
|
||||
/* insert into list at appropriate location */
|
||||
for (curitem = 0; curitem < listitems; curitem++)
|
||||
if (newnode->weight > list[curitem]->weight)
|
||||
{
|
||||
memmove(&list[curitem+1], &list[curitem], (listitems - curitem) * sizeof(list[0]));
|
||||
break;
|
||||
}
|
||||
list[curitem] = newnode;
|
||||
listitems++;
|
||||
}
|
||||
|
||||
/* compute the number of bits in each code, and fill in another histogram */
|
||||
for (curcode = 0; curcode < decoder->numcodes; curcode++)
|
||||
{
|
||||
struct node_t *curnode;
|
||||
struct node_t* node = &decoder->huffnode[curcode];
|
||||
node->numbits = 0;
|
||||
node->bits = 0;
|
||||
|
||||
/* if we have a non-zero weight, compute the number of bits */
|
||||
if (node->weight > 0)
|
||||
{
|
||||
/* determine the number of bits for this node */
|
||||
for (curnode = node; curnode->parent != NULL; curnode = curnode->parent)
|
||||
node->numbits++;
|
||||
if (node->numbits == 0)
|
||||
node->numbits = 1;
|
||||
|
||||
/* keep track of the max */
|
||||
maxbits = MAX(maxbits, ((int)node->numbits));
|
||||
}
|
||||
}
|
||||
return maxbits;
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
* assign_canonical_codes - assign canonical codes
|
||||
* to all the nodes based on the number of bits
|
||||
* in each
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
enum huffman_error huffman_assign_canonical_codes(struct huffman_decoder* decoder)
|
||||
{
|
||||
uint32_t curcode;
|
||||
int codelen;
|
||||
uint32_t curstart = 0;
|
||||
/* build up a histogram of bit lengths */
|
||||
uint32_t bithisto[33] = { 0 };
|
||||
for (curcode = 0; curcode < decoder->numcodes; curcode++)
|
||||
{
|
||||
struct node_t* node = &decoder->huffnode[curcode];
|
||||
if (node->numbits > decoder->maxbits)
|
||||
return HUFFERR_INTERNAL_INCONSISTENCY;
|
||||
if (node->numbits <= 32)
|
||||
bithisto[node->numbits]++;
|
||||
}
|
||||
|
||||
/* for each code length, determine the starting code number */
|
||||
for (codelen = 32; codelen > 0; codelen--)
|
||||
{
|
||||
uint32_t nextstart = (curstart + bithisto[codelen]) >> 1;
|
||||
if (codelen != 1 && nextstart * 2 != (curstart + bithisto[codelen]))
|
||||
return HUFFERR_INTERNAL_INCONSISTENCY;
|
||||
bithisto[codelen] = curstart;
|
||||
curstart = nextstart;
|
||||
}
|
||||
|
||||
/* now assign canonical codes */
|
||||
for (curcode = 0; curcode < decoder->numcodes; curcode++)
|
||||
{
|
||||
struct node_t* node = &decoder->huffnode[curcode];
|
||||
if (node->numbits > 0)
|
||||
node->bits = bithisto[node->numbits]++;
|
||||
}
|
||||
return HUFFERR_NONE;
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
* build_lookup_table - build a lookup table for
|
||||
* fast decoding
|
||||
*-------------------------------------------------
|
||||
*/
|
||||
|
||||
void huffman_build_lookup_table(struct huffman_decoder* decoder)
|
||||
{
|
||||
uint32_t curcode;
|
||||
/* iterate over all codes */
|
||||
for (curcode = 0; curcode < decoder->numcodes; curcode++)
|
||||
{
|
||||
/* process all nodes which have non-zero bits */
|
||||
struct node_t* node = &decoder->huffnode[curcode];
|
||||
if (node->numbits > 0)
|
||||
{
|
||||
int shift;
|
||||
lookup_value *dest;
|
||||
lookup_value *destend;
|
||||
/* set up the entry */
|
||||
lookup_value value = MAKE_LOOKUP(curcode, node->numbits);
|
||||
|
||||
/* fill all matching entries */
|
||||
shift = decoder->maxbits - node->numbits;
|
||||
dest = &decoder->lookup[node->bits << shift];
|
||||
destend = &decoder->lookup[((node->bits + 1) << shift) - 1];
|
||||
while (dest <= destend)
|
||||
*dest++ = value;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -119,6 +119,7 @@ add_subdirectory(3rdparty/fmt/fmt EXCLUDE_FROM_ALL)
|
|||
add_subdirectory(3rdparty/rapidyaml/rapidyaml EXCLUDE_FROM_ALL)
|
||||
add_subdirectory(3rdparty/lzma EXCLUDE_FROM_ALL)
|
||||
add_subdirectory(3rdparty/libchdr EXCLUDE_FROM_ALL)
|
||||
disable_compiler_warnings_for_target(libchdr)
|
||||
add_subdirectory(3rdparty/soundtouch EXCLUDE_FROM_ALL)
|
||||
|
||||
# rapidyaml includes fast_float as a submodule, saves us pulling it in directly.
|
||||
|
|
|
|||
|
|
@ -1123,7 +1123,7 @@ target_link_libraries(PCSX2_FLAGS INTERFACE
|
|||
imgui
|
||||
fmt::fmt
|
||||
ryml
|
||||
chdr-static
|
||||
libchdr
|
||||
libzip::zip
|
||||
cpuinfo
|
||||
zydis
|
||||
|
|
|
|||
|
|
@ -39,7 +39,7 @@
|
|||
<AdditionalIncludeDirectories>%(AdditionalIncludeDirectories);$(SolutionDir)3rdparty\xz\xz\src\liblzma\api</AdditionalIncludeDirectories>
|
||||
<AdditionalIncludeDirectories>%(AdditionalIncludeDirectories);$(SolutionDir)3rdparty\zlib</AdditionalIncludeDirectories>
|
||||
<AdditionalIncludeDirectories>%(AdditionalIncludeDirectories);$(SolutionDir)3rdparty\libpng</AdditionalIncludeDirectories>
|
||||
<AdditionalIncludeDirectories>%(AdditionalIncludeDirectories);$(SolutionDir)3rdparty\libchdr\libchdr\include</AdditionalIncludeDirectories>
|
||||
<AdditionalIncludeDirectories>%(AdditionalIncludeDirectories);$(SolutionDir)3rdparty\libchdr\include</AdditionalIncludeDirectories>
|
||||
<AdditionalIncludeDirectories>%(AdditionalIncludeDirectories);$(SolutionDir)3rdparty\cubeb\include</AdditionalIncludeDirectories>
|
||||
<AdditionalIncludeDirectories>%(AdditionalIncludeDirectories);$(SolutionDir)3rdparty\imgui\include</AdditionalIncludeDirectories>
|
||||
<AdditionalIncludeDirectories>%(AdditionalIncludeDirectories);$(SolutionDir)3rdparty\simpleini\include</AdditionalIncludeDirectories>
|
||||
|
|
|
|||
Loading…
Reference in New Issue