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https://github.com/libretro/RetroArch
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cbf49a0b77
* Add xdelta in deps * Include <assert.h> in xdelta3.h - Otherwise the static_assert calls can fail * Build xdelta3 in Makefile.common * Add xdelta support to the softpatching infrastructure - The patching itself isn't fully implemented yet * Adjust how xdelta3.h checks the sizes of some types - Now checks max values instead of relying on autotools * Add some enums that were excluded by the cherry-pick * Remove stray whitespace * Adjust SIZE macros in xdelta3.h - Move them outside the XD3_USE_LARGEFILE64 block - Add more SIZE declarations - Make SIZEOF_UNSIGNED_LONG_LONG contingent on the presence of ULLONG_MAX * Reintegrate xdelta support * Enable support for xdelta's secondary compressors - Necessary for some patches * Fix some format specifiers * Remove unnecessary files from xdelta * Include xdelta3.h with a relative path * Add xdelta3 headers to HEADERS variable * Gate Xdelta support behind HAVE_XDELTA - HAVE_XDELTA is on by default - HAVE_PATCH is still required for HAVE_XDELTA to be meaningful - Support is mostly contingent on the availability of LZMA - Anything modern should be okay - Legacy platforms (e.g. DOS) may need to have Xdelta support disabled - At least until some other solution can be found * Disable HAVE_XDELTA on platforms where the build recently failed - These come from looking at the failed builds on GitHub - These are guesses, and may turn out to be wrong * Fix a potential memory leak - Whoops, looks like I need to call two cleanup functions - xd3_close_stream exists separately from xd3_free_stream * Split the --help printout for --xdelta into its own strlcat call - GCC was complaining about #ifdefs within macro arguments being non-portable * Fix some incorrect printf format specifiers * Modify Xdelta to adhere to C89 - It's mostly using RetroArch's INLINE macro instead of the inline keyword * Slight cleanups * Remove a stray comma that was hindering C89 builds * Add XDelta support to CHANGES.md * Change how the xdelta patch's name is computed - To be in line with other recent refactoring * Fix an incorrect merge - Whoops, this part was from before I figured out how to get the size of a patched file * Explain the song-and-dance behind computing a patched file's size * Define some XDelta3-related constants to 0 on 32-bit platforms * Adjust some Xdelta-related macro definitions - Exclude the encoder, since we're not making patches - Move some #defines to after inclusion of <stdint.h>, to fix undefined behavior - Remove _WIN32_WINNT overrides, since they were for code that we're not using * Fix Xdelta support * Wrap an encoder-only function in `#if XD3_ENCODER`
131 lines
8.4 KiB
C
131 lines
8.4 KiB
C
/* xdelta3 - delta compression tools and library
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Copyright 2016 Joshua MacDonald
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#ifndef __XDELTA3_LIST__
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#define __XDELTA3_LIST__
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/* To include RetroArch's INLINE macro */
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#include "retro_inline.h"
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#define XD3_MAKELIST(LTYPE,ETYPE,LNAME) \
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\
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static INLINE ETYPE* \
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LTYPE ## _entry (LTYPE* l) \
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{ \
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return (ETYPE*) ((char*) l - (ptrdiff_t) &((ETYPE*) 0)->LNAME); \
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} \
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\
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static INLINE void \
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LTYPE ## _init (LTYPE *l) \
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{ \
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l->next = l; \
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l->prev = l; \
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} \
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\
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static INLINE void \
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LTYPE ## _add (LTYPE *prev, LTYPE *next, LTYPE *ins) \
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{ \
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next->prev = ins; \
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prev->next = ins; \
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ins->next = next; \
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ins->prev = prev; \
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} \
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\
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static INLINE void \
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LTYPE ## _push_back (LTYPE *l, ETYPE *i) \
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{ \
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LTYPE ## _add (l->prev, l, & i->LNAME); \
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} \
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\
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static INLINE void \
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LTYPE ## _del (LTYPE *next, \
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LTYPE *prev) \
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{ \
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next->prev = prev; \
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prev->next = next; \
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} \
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\
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static INLINE ETYPE* \
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LTYPE ## _remove (ETYPE *f) \
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{ \
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LTYPE *i = f->LNAME.next; \
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LTYPE ## _del (f->LNAME.next, f->LNAME.prev); \
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return LTYPE ## _entry (i); \
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} \
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\
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static INLINE ETYPE* \
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LTYPE ## _pop_back (LTYPE *l) \
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{ \
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LTYPE *i = l->prev; \
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LTYPE ## _del (i->next, i->prev); \
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return LTYPE ## _entry (i); \
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} \
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\
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static INLINE ETYPE* \
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LTYPE ## _pop_front (LTYPE *l) \
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{ \
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LTYPE *i = l->next; \
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LTYPE ## _del (i->next, i->prev); \
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return LTYPE ## _entry (i); \
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} \
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\
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static INLINE int \
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LTYPE ## _empty (LTYPE *l) \
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{ \
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return l == l->next; \
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} \
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\
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static INLINE ETYPE* \
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LTYPE ## _front (LTYPE *f) \
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{ \
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return LTYPE ## _entry (f->next); \
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} \
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\
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static INLINE ETYPE* \
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LTYPE ## _back (LTYPE *f) \
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{ \
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return LTYPE ## _entry (f->prev); \
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} \
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\
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static INLINE int \
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LTYPE ## _end (LTYPE *f, ETYPE *i) \
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{ \
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return f == & i->LNAME; \
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} \
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\
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static INLINE ETYPE* \
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LTYPE ## _next (ETYPE *f) \
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{ \
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return LTYPE ## _entry (f->LNAME.next); \
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} \
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\
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static INLINE usize_t \
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LTYPE ## _length (LTYPE *l) \
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{ \
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LTYPE *p; \
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usize_t c = 0; \
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\
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for (p = l->next; p != l; p = p->next) \
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{ \
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c += 1; \
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} \
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\
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return c; \
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} \
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\
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typedef int unused_ ## LTYPE
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#endif
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