add_for_zlib

Zengl_SRC/lib/zlib/Makefile

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+iOS_GCC=/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc-4.2
+iOS_SYSROOT=/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk
+ANDROID_GCC=$(ANDROID_NDK)/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc
+
+linux:
+	gcc zlib_helper.c -c -oi386-linux/zlib_helper.o -O2 -s -ffast-math -std=c99 -march=i686 -m32
+	gcc zlib_helper.c -c -ox86_64-linux/zlib_helper.o -O2 -s -ffast-math -std=c99 -m64 -fPIC
+
+android:
+	$(ANDROID_GCC) zlib_helper.c -c -oarm-linux/zlib_helper.o -O2 -s -marm -march=armv5 -Xassembler "-meabi=5" -ffast-math -std=c99 -I$(ANDROID_NDK)/platforms/android-3/arch-arm/usr/include
+
+win32:
+	i486-mingw32-gcc zlib_helper.c -c -oi386-win32/zlib_helper.o -O2 -s -ffast-math -std=c99 -march=i686
+
+win64:
+	x86_64-w64-mingw32-gcc zlib_helper.c -c -ox86_64-win64/zlib_helper.o -O2 -s -ffast-math -std=c99
+
+wince:
+	arm-wince-cegcc-gcc zlib_helper.c -c -oarm-wince/zlib_helper.o -I./ -O2 -s -ffast-math
+
+macos:
+	gcc zlib_helper.c -c -oi386-darwin/zlib_helper.o -O2 -s -ffast-math -std=c99 -march=i686 -m32
+	powerpc-apple-darwin10-gcc-4.2.1 zlib_helper.c -c -opowerpc-darwin/zlib_helper.o -O2 -s -ffast-math -std=c99
+
+ios:
+	$(iOS_GCC) -isysroot$(iOS_SYSROOT) -arch armv6 zlib_helper.c -c -oarm-darwin/zlib_helper_armv6.o -O2 -s -ffast-math -std=c99
+	$(iOS_GCC) -isysroot$(iOS_SYSROOT) -arch armv7 zlib_helper.c -c -oarm-darwin/zlib_helper_armv7.o -O2 -s -ffast-math -std=c99
+	lipo -create arm-darwin/zlib_helper_armv6.o arm-darwin/zlib_helper_armv7.o -output arm-darwin/zlib_helper.o
+	rm -f arm-darwin/zlib_helper_armv6.o
+	rm -f arm-darwin/zlib_helper_armv7.o
+	gcc zlib_helper.c -c -oi386-iphonesim/zlib_helper.o -O2 -s -ffast-math -std=c99 -march=i686 -m32

Zengl_SRC/lib/zlib/zlib_helper.c

@@ -0,0 +1,146 @@
+/*
+ *  Copyright (c) 2012 Andrey Kemka
+ *
+ *  This software is provided 'as-is', without any express or
+ *  implied warranty. In no event will the authors be held
+ *  liable for any damages arising from the use of this software.
+ *
+ *  Permission is granted to anyone to use this software for any purpose,
+ *  including commercial applications, and to alter it and redistribute
+ *  it freely, subject to the following restrictions:
+ *
+ *  1. The origin of this software must not be misrepresented;
+ *     you must not claim that you wrote the original software.
+ *     If you use this software in a product, an acknowledgment
+ *     in the product documentation would be appreciated but
+ *     is not required.
+ *
+ *  2. Altered source versions must be plainly marked as such,
+ *     and must not be misrepresented as being the original software.
+ *
+ *  3. This notice may not be removed or altered from any
+ *     source distribution.
+*/
+
+#include <stdio.h>
+#include <math.h>
+#include <zlib.h>
+#ifndef __CEGCC__
+  #include <memory.h>
+#endif
+
+typedef struct
+{
+  void *Memory;
+  unsigned int  Size;
+  unsigned int  Position;
+} zglTMemory, *zglPMemory;
+
+void zlib_Init( z_stream *strm )
+{
+  memset( strm, 0, sizeof( z_stream ) );
+  inflateInit_( strm, ZLIB_VERSION, sizeof( z_stream ) );
+}
+
+void zlib_Free( z_stream *strm )
+{
+  inflateEnd( strm );
+}
+
+#ifdef __CEGCC__
+unsigned long udivmodsi4( unsigned long num, unsigned long den, int modwanted )
+{
+  unsigned long bit = 1;
+  unsigned long res = 0;
+
+  while ( den < num && bit && !( den & ( 1L << 31 ) ) )
+  {
+    den <<= 1;
+    bit <<= 1;
+  }
+  while ( bit )
+  {
+    if (num >= den)
+      {
+        num -= den;
+        res |= bit;
+      }
+    bit >>=1;
+    den >>=1;
+  }
+
+  if ( modwanted ) return num;
+  return res;
+}
+
+long __umodsi3 ( long a, long b )
+{
+  return udivmodsi4( a, b, 1 );
+}
+#endif
+
+int png_DecodeIDAT( zglTMemory *pngMem, z_stream *pngZStream, unsigned int *pngIDATEnd, void *Buffer, int Bytes )
+{
+  unsigned char *b;
+  char *IDATHeader;
+  int result = -1;
+  pngZStream->next_out  = Buffer;
+  pngZStream->avail_out = Bytes;
+
+  while ( pngZStream->avail_out > 0 )
+  {
+    if ( ( pngMem->Position == *pngIDATEnd ) && ( pngZStream->avail_out > 0 ) && ( pngZStream->avail_in == 0 ) )
+    {
+      pngMem->Position += 4;
+
+      b = (unsigned char*)( (unsigned char*)pngMem->Memory + pngMem->Position );
+      *pngIDATEnd = b[ 3 ] + ( b[ 2 ] << 8 ) + ( b[ 1 ] << 16 ) + ( b[ 0 ] << 24 );
+      pngMem->Position += 4;
+
+      IDATHeader = (char*)( (char*)pngMem->Memory + pngMem->Position );
+      if ( ( IDATHeader[ 0 ] != 'I' ) && ( IDATHeader[ 1 ] != 'D' ) && ( IDATHeader[ 2 ] != 'A' ) && ( IDATHeader[ 3 ] != 'T' ) )
+        return -1;
+      pngMem->Position += 4;
+
+      *pngIDATEnd += pngMem->Position;
+    }
+
+    if ( pngZStream->avail_in == 0 )
+    {
+      if ( pngMem->Size - pngMem->Position > 0 )
+      {
+        if ( pngMem->Position + 65535 > *pngIDATEnd )
+        {
+          if ( pngMem->Position + ( *pngIDATEnd - pngMem->Position ) > pngMem->Size )
+            pngZStream->avail_in = pngMem->Size - pngMem->Position;
+          else
+            pngZStream->avail_in = *pngIDATEnd - pngMem->Position;
+        }
+        else
+        {
+          if ( pngMem->Position + 65535 > pngMem->Size )
+            pngZStream->avail_in = pngMem->Size - pngMem->Position;
+          else
+            pngZStream->avail_in = 65535;
+        }
+        pngMem->Position += pngZStream->avail_in;
+      }
+      else
+        pngZStream->avail_in = 0;
+
+      if ( pngZStream->avail_in == 0 )
+        return Bytes - pngZStream->avail_out;
+
+      pngZStream->next_in = (void*)( (char*)pngMem->Memory + pngMem->Position - pngZStream->avail_in );
+    }
+
+    result = inflate( pngZStream, 0 );
+
+    if ( result < 0 )
+      return -1;
+    else
+      result = pngZStream->avail_in;
+  }
+
+  return result;
+}