Merge pull request #215 from libretro/kivutar/embedzlib

Embed zlib

1 files changed, 236 insertions, 0 deletions

diff --git a/deps/zlib/ioapi.c b/deps/zlib/ioapi.c
new file mode 100644
index 0000000..767ac2f
--- /dev/null
+++ b/deps/zlib/ioapi.c
@@ -0,0 +1,236 @@
+/* ioapi.h -- IO base function header for compress/uncompress .zip
+   part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )
+
+   Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )
+
+   Modifications for Zip64 support
+   Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
+
+   For more info read MiniZip_info.txt
+
+*/
+
+#ifdef _WIN32
+#ifndef _CRT_SECURE_NO_WARNINGS
+#define _CRT_SECURE_NO_WARNINGS
+#endif
+#endif
+
+#include "ioapi.h"
+
+voidpf call_zopen64 (const zlib_filefunc64_32_def* pfilefunc,const void*filename,int mode)
+{
+   if (pfilefunc->zfile_func64.zopen64_file != NULL)
+      return (*(pfilefunc->zfile_func64.zopen64_file)) (pfilefunc->zfile_func64.opaque,filename,mode);
+   else
+   {
+      return (*(pfilefunc->zopen32_file))(pfilefunc->zfile_func64.opaque,(const char*)filename,mode);
+   }
+}
+
+long call_zseek64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream, ZPOS64_T offset, int origin)
+{
+   if (pfilefunc->zfile_func64.zseek64_file != NULL)
+      return (*(pfilefunc->zfile_func64.zseek64_file)) (pfilefunc->zfile_func64.opaque,filestream,offset,origin);
+   else
+   {
+      uLong offsetTruncated = (uLong)offset;
+      if (offsetTruncated != offset)
+         return -1;
+      else
+         return (*(pfilefunc->zseek32_file))(pfilefunc->zfile_func64.opaque,filestream,offsetTruncated,origin);
+   }
+}
+
+ZPOS64_T call_ztell64 (const zlib_filefunc64_32_def* pfilefunc,voidpf filestream)
+{
+   if (pfilefunc->zfile_func64.zseek64_file != NULL)
+      return (*(pfilefunc->zfile_func64.ztell64_file)) (pfilefunc->zfile_func64.opaque,filestream);
+   else
+   {
+      uLong tell_uLong = (*(pfilefunc->ztell32_file))(pfilefunc->zfile_func64.opaque,filestream);
+      if ((tell_uLong) == ((uLong)-1))
+         return (ZPOS64_T)-1;
+      else
+         return tell_uLong;
+   }
+}
+
+void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def* p_filefunc64_32,const zlib_filefunc_def* p_filefunc32)
+{
+   p_filefunc64_32->zfile_func64.zopen64_file = NULL;
+   p_filefunc64_32->zopen32_file = p_filefunc32->zopen_file;
+   p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
+   p_filefunc64_32->zfile_func64.zread_file = p_filefunc32->zread_file;
+   p_filefunc64_32->zfile_func64.zwrite_file = p_filefunc32->zwrite_file;
+   p_filefunc64_32->zfile_func64.ztell64_file = NULL;
+   p_filefunc64_32->zfile_func64.zseek64_file = NULL;
+   p_filefunc64_32->zfile_func64.zclose_file = p_filefunc32->zclose_file;
+   p_filefunc64_32->zfile_func64.zerror_file = p_filefunc32->zerror_file;
+   p_filefunc64_32->zfile_func64.opaque = p_filefunc32->opaque;
+   p_filefunc64_32->zseek32_file = p_filefunc32->zseek_file;
+   p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file;
+}
+
+
+
+static voidpf  ZCALLBACK fopen_file_func OF((voidpf opaque, const char* filename, int mode));
+static uLong   ZCALLBACK fread_file_func OF((voidpf opaque, voidpf stream, void* buf, uLong size));
+static uLong   ZCALLBACK fwrite_file_func OF((voidpf opaque, voidpf stream, const void* buf,uLong size));
+static ZPOS64_T ZCALLBACK ftell64_file_func OF((voidpf opaque, voidpf stream));
+static long    ZCALLBACK fseek64_file_func OF((voidpf opaque, voidpf stream, ZPOS64_T offset, int origin));
+static int     ZCALLBACK fclose_file_func OF((voidpf opaque, voidpf stream));
+static int     ZCALLBACK ferror_file_func OF((voidpf opaque, voidpf stream));
+
+static voidpf ZCALLBACK fopen_file_func (voidpf opaque, const char* filename, int mode)
+{
+   FILE* file = NULL;
+   const char* mode_fopen = NULL;
+   if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
+      mode_fopen = "rb";
+   else
+      if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
+         mode_fopen = "r+b";
+      else
+         if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+            mode_fopen = "wb";
+
+   if ((filename!=NULL) && (mode_fopen != NULL))
+      file = fopen(filename, mode_fopen);
+   return file;
+}
+
+static voidpf ZCALLBACK fopen64_file_func (voidpf opaque, const void* filename, int mode)
+{
+   FILE* file = NULL;
+   const char* mode_fopen = NULL;
+   if ((mode & ZLIB_FILEFUNC_MODE_READWRITEFILTER)==ZLIB_FILEFUNC_MODE_READ)
+      mode_fopen = "rb";
+   else
+      if (mode & ZLIB_FILEFUNC_MODE_EXISTING)
+         mode_fopen = "r+b";
+      else
+         if (mode & ZLIB_FILEFUNC_MODE_CREATE)
+            mode_fopen = "wb";
+
+   if ((filename!=NULL) && (mode_fopen != NULL))
+      file = fopen((const char*)filename, mode_fopen);
+   return file;
+}
+
+
+static uLong ZCALLBACK fread_file_func (voidpf opaque, voidpf stream, void* buf, uLong size)
+{
+   uLong ret;
+   ret = (uLong)fread(buf, 1, (size_t)size, (FILE *)stream);
+   return ret;
+}
+
+static uLong ZCALLBACK fwrite_file_func (voidpf opaque, voidpf stream, const void* buf, uLong size)
+{
+   uLong ret;
+   ret = (uLong)fwrite(buf, 1, (size_t)size, (FILE *)stream);
+   return ret;
+}
+
+static long ZCALLBACK ftell_file_func (voidpf opaque, voidpf stream)
+{
+   long ret;
+   ret = ftell((FILE *)stream);
+   return ret;
+}
+
+
+static ZPOS64_T ZCALLBACK ftell64_file_func (voidpf opaque, voidpf stream)
+{
+   ZPOS64_T ret;
+   ret = ftell((FILE *)stream);
+   return ret;
+}
+
+static long ZCALLBACK fseek_file_func (voidpf  opaque, voidpf stream, uLong offset, int origin)
+{
+   int fseek_origin=0;
+   long ret;
+   switch (origin)
+   {
+      case ZLIB_FILEFUNC_SEEK_CUR :
+         fseek_origin = SEEK_CUR;
+         break;
+      case ZLIB_FILEFUNC_SEEK_END :
+         fseek_origin = SEEK_END;
+         break;
+      case ZLIB_FILEFUNC_SEEK_SET :
+         fseek_origin = SEEK_SET;
+         break;
+      default: return -1;
+   }
+   ret = 0;
+   if (fseek((FILE *)stream, offset, fseek_origin) != 0)
+      ret = -1;
+   return ret;
+}
+
+static long ZCALLBACK fseek64_file_func (voidpf  opaque, voidpf stream, ZPOS64_T offset, int origin)
+{
+   int fseek_origin=0;
+   long ret;
+   switch (origin)
+   {
+      case ZLIB_FILEFUNC_SEEK_CUR :
+         fseek_origin = SEEK_CUR;
+         break;
+      case ZLIB_FILEFUNC_SEEK_END :
+         fseek_origin = SEEK_END;
+         break;
+      case ZLIB_FILEFUNC_SEEK_SET :
+         fseek_origin = SEEK_SET;
+         break;
+      default: return -1;
+   }
+   ret = 0;
+
+   if(fseek((FILE *)stream, (long)offset, fseek_origin) != 0)
+      ret = -1;
+
+   return ret;
+}
+
+
+static int ZCALLBACK fclose_file_func (voidpf opaque, voidpf stream)
+{
+   int ret;
+   ret = fclose((FILE *)stream);
+   return ret;
+}
+
+static int ZCALLBACK ferror_file_func (voidpf opaque, voidpf stream)
+{
+   int ret;
+   ret = ferror((FILE *)stream);
+   return ret;
+}
+
+void fill_fopen_filefunc (zlib_filefunc_def *pzlib_filefunc_def)
+{
+   pzlib_filefunc_def->zopen_file = fopen_file_func;
+   pzlib_filefunc_def->zread_file = fread_file_func;
+   pzlib_filefunc_def->zwrite_file = fwrite_file_func;
+   pzlib_filefunc_def->ztell_file = ftell_file_func;
+   pzlib_filefunc_def->zseek_file = fseek_file_func;
+   pzlib_filefunc_def->zclose_file = fclose_file_func;
+   pzlib_filefunc_def->zerror_file = ferror_file_func;
+   pzlib_filefunc_def->opaque = NULL;
+}
+
+void fill_fopen64_filefunc (zlib_filefunc64_def*  pzlib_filefunc_def)
+{
+   pzlib_filefunc_def->zopen64_file = fopen64_file_func;
+   pzlib_filefunc_def->zread_file = fread_file_func;
+   pzlib_filefunc_def->zwrite_file = fwrite_file_func;
+   pzlib_filefunc_def->ztell64_file = ftell64_file_func;
+   pzlib_filefunc_def->zseek64_file = fseek64_file_func;
+   pzlib_filefunc_def->zclose_file = fclose_file_func;
+   pzlib_filefunc_def->zerror_file = ferror_file_func;
+   pzlib_filefunc_def->opaque = NULL;
+}