cut around 30 bytes of code off of zlib mode (room for more tho)

git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@1226 212acab6-be3b-0410-9dea-997c60f758d6

Source/zlib/INFBLOCK.C

@@ -50,13 +50,26 @@ inflate_blocks_statef *s;
 z_streamp z;
 int r;
 {
-  uInt t;               /* temporary storage */
-  uLong b;              /* bit buffer */
-  uInt k;               /* bits in bit buffer */
-  Bytef *p;             /* input data pointer */
-  uInt n;               /* bytes available there */
-  Bytef *q;             /* output window write pointer */
-  uInt m;               /* bytes to end of window or read pointer */
+
+  // lousy two bytes saved by doing this
+  struct
+  {
+    uInt t;               /* temporary storage */
+    uLong b;              /* bit buffer */
+    uInt k;               /* bits in bit buffer */
+    Bytef *p;             /* input data pointer */
+    uInt n;               /* bytes available there */
+    Bytef *q;             /* output window write pointer */
+    uInt m;               /* bytes to end of window or read pointer */
+  } _state;
+
+#define t _state.t
+#define b _state.b
+#define k _state.k
+#define p _state.p
+#define n _state.n
+#define q _state.q
+#define m _state.m
 
   /* copy input/output information to locals (UPDATE macro restores) */
   LOAD

Source/zlib/INFLATE.C

@@ -21,7 +21,6 @@ int ZEXPORT inflateReset(z_streamp z)
 {
   if (z == Z_NULL || z->state == Z_NULL)
     return Z_STREAM_ERROR;
-  z->total_in = z->total_out = 0;
   inflate_blocks_reset(&z->state->blocks, z, Z_NULL);
   return Z_OK;
 }

Source/zlib/INFUTIL.C

@@ -20,6 +20,18 @@ unsigned short inflate_mask[17] = {
     0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff
 };
 
+/*
+void NSISCALL genrtable()
+{
+  int x=17;
+  while (x>=0)
+  {
+    inflate_mask[x]=(1<<x)-1;
+    x--;
+  }
+}
+*/
+
 int __myleave(inflate_blocks_statef *s, z_streamp z, int r, int b, int k, Bytef *p, int n, Bytef *q)
 {
   UPDATE 
@@ -47,7 +59,7 @@ int r;
 
   /* update counters */
   z->avail_out -= n;
-  z->total_out += n;
+//  z->total_out += n;
 
   /* copy as far as end of window */
   zmemcpy(p, q, n);
@@ -69,7 +81,7 @@ int r;
 
     /* update counters */
     z->avail_out -= n;
-    z->total_out += n;
+    //z->total_out += n;
 
     /* copy */
     zmemcpy(p, q, n);

Source/zlib/INFUTIL.H

@@ -58,7 +58,7 @@ struct inflate_blocks_state {
 /* defines for inflate input/output */
 /*   update pointers and return */
 #define UPDBITS {s->bitb=b;s->bitk=k;}
-#define UPDIN {z->avail_in=n;z->total_in+=p-z->next_in;z->next_in=p;}
+#define UPDIN {z->avail_in=n;z->next_in=p;}
 #define UPDOUT {s->write=q;}
 #define UPDATE {UPDBITS UPDIN UPDOUT}
 #define LEAVE return __myleave(s,z,r,b,k,p,n,q);

Source/zlib/ZLIB.H

@@ -54,11 +54,15 @@ struct internal_state;
 typedef struct z_stream_s {
     Bytef    *next_in;  /* next input byte */
     uInt     avail_in;  /* number of bytes available at next_in */
+#ifndef EXEHEAD
     uLong    total_in;  /* total nb of input bytes read so far */
+#endif
 
     Bytef    *next_out; /* next output byte should be put there */
     uInt     avail_out; /* remaining free space at next_out */
+#ifndef EXEHEAD
     uLong    total_out; /* total nb of bytes output so far */
+#endif
 
 //    char     *msg;      /* last error message, NULL if no error */
     struct internal_state FAR *state; /* not visible by applications */