From a30a27ce6c313e56cc92dc7183d599f63f8ca1f2 Mon Sep 17 00:00:00 2001
From: Holger Schemel <info@artsoft.org>
Date: Fri, 21 Oct 2022 15:28:16 +0200
Subject: [PATCH] removed unused functions

This issue was found by Cppcheck (static C/C++ code analysis tool).
---
 src/game_mm/export.h      |   1 -
 src/game_mm/mm_init.c     |   4 --
 src/game_mm/mm_tools.c    |  44 ----------------
 src/game_mm/mm_tools.h    |   7 ---
 src/libgame/image.c       |   7 ---
 src/libgame/image.h       |   1 -
 src/libgame/joystick.c    | 105 --------------------------------------
 src/libgame/joystick.h    |   6 ---
 src/libgame/sdl.c         |  16 ------
 src/libgame/sdl.h         |   1 -
 src/libgame/setup.c       |  17 ------
 src/libgame/setup.h       |   1 -
 src/libgame/system.c      |  15 ------
 src/libgame/system.h      |   2 -
 src/libgame/text.c        |   6 ---
 src/libgame/text.h        |   1 -
 src/libgame/zip/ioapi.c   |  98 -----------------------------------
 src/libgame/zip/ioapi.h   |   1 -
 src/libgame/zip/iowin32.c |  39 --------------
 src/libgame/zip/iowin32.h |   3 --
 20 files changed, 375 deletions(-)

diff --git a/src/game_mm/export.h b/src/game_mm/export.h
index 710d2ee9..21e20cdc 100644
--- a/src/game_mm/export.h
+++ b/src/game_mm/export.h
@@ -211,7 +211,6 @@ extern struct EngineSnapshotInfo_MM engine_snapshot_mm;
 extern short Ur[MM_MAX_PLAYFIELD_WIDTH][MM_MAX_PLAYFIELD_HEIGHT];
 
 void mm_open_all(void);
-void mm_close_all(void);
 
 void InitElementProperties_MM(void);
 
diff --git a/src/game_mm/mm_init.c b/src/game_mm/mm_init.c
index 0fe4c9fc..6ed89c95 100644
--- a/src/game_mm/mm_init.c
+++ b/src/game_mm/mm_init.c
@@ -239,7 +239,3 @@ void mm_open_all(void)
 {
   InitElementProperties_MM();
 }
-
-void mm_close_all(void)
-{
-}
diff --git a/src/game_mm/mm_tools.c b/src/game_mm/mm_tools.c
index 044c83a3..3fb8b4bb 100644
--- a/src/game_mm/mm_tools.c
+++ b/src/game_mm/mm_tools.c
@@ -260,12 +260,6 @@ void DrawGraphicShifted_MM(int x,int y, int dx,int dy, int graphic,
   MarkTileDirty(x,y);
 }
 
-void DrawGraphicShiftedThruMask_MM(int x,int y, int dx,int dy, int graphic,
-				int cut_mode)
-{
-  DrawGraphicShifted_MM(x, y, dx, dy, graphic, cut_mode, USE_MASKING);
-}
-
 void DrawScreenElementExt_MM(int x, int y, int dx, int dy, int element,
 			  int cut_mode, int mask_mode)
 {
@@ -309,38 +303,11 @@ void DrawScreenElementShifted_MM(int x, int y, int dx, int dy, int element,
   DrawScreenElementExt_MM(x, y, dx, dy, element, cut_mode, NO_MASKING);
 }
 
-void DrawLevelElementShifted_MM(int x, int y, int dx, int dy, int element,
-			     int cut_mode)
-{
-  DrawLevelElementExt_MM(x, y, dx, dy, element, cut_mode, NO_MASKING);
-}
-
-void DrawScreenElementThruMask_MM(int x, int y, int element)
-{
-  DrawScreenElementExt_MM(x, y, 0, 0, element, NO_CUTTING, USE_MASKING);
-}
-
-void DrawLevelElementThruMask_MM(int x, int y, int element)
-{
-  DrawLevelElementExt_MM(x, y, 0, 0, element, NO_CUTTING, USE_MASKING);
-}
-
-void DrawLevelFieldThruMask_MM(int x, int y)
-{
-  DrawLevelElementExt_MM(x, y, 0, 0, Tile[x][y], NO_CUTTING, USE_MASKING);
-}
-
 void DrawScreenElement_MM(int x, int y, int element)
 {
   DrawScreenElementExt_MM(x, y, 0, 0, element, NO_CUTTING, NO_MASKING);
 }
 
-void DrawLevelElement_MM(int x, int y, int element)
-{
-  if (IN_LEV_FIELD(x, y) && IN_SCR_FIELD(SCREENX(x), SCREENY(y)))
-    DrawScreenElement_MM(SCREENX(x), SCREENY(y), element);
-}
-
 void DrawScreenField_MM(int x, int y)
 {
   int element = Tile[x][y];
@@ -617,17 +584,6 @@ static void DrawMicroLevelExt_MM(int xpos, int ypos)
 }
 #endif
 
-void DrawMiniLevel_MM(int size_x, int size_y, int scroll_x, int scroll_y)
-{
-  int x, y;
-
-  for (x = 0; x < size_x; x++)
-    for (y = 0; y < size_y; y++)
-      DrawMiniElementOrWall_MM(x, y, scroll_x, scroll_y);
-
-  redraw_mask |= REDRAW_FIELD;
-}
-
 
 // ----------------------------------------------------------------------------
 // XSN
diff --git a/src/game_mm/mm_tools.h b/src/game_mm/mm_tools.h
index 97b48f43..74cfe298 100644
--- a/src/game_mm/mm_tools.h
+++ b/src/game_mm/mm_tools.h
@@ -69,17 +69,11 @@ void DrawMiniGraphic_MM(int, int, int);
 void getMiniGraphicSource(int, Bitmap **, int *, int *);
 void DrawMiniGraphicExt_MM(DrawBuffer *, int, int, int);
 void DrawGraphicShifted_MM(int, int, int, int, int, int, int);
-void DrawGraphicShiftedThruMask_MM(int, int, int, int, int, int);
 void DrawScreenElementExt_MM(int, int, int, int, int, int, int);
 void DrawLevelElementExt_MM(int, int, int, int, int, int, int);
 void DrawScreenElementShifted_MM(int, int, int, int, int, int);
-void DrawLevelElementShifted_MM(int, int, int, int, int, int);
-void DrawScreenElementThruMask_MM(int, int, int);
-void DrawLevelElementThruMask_MM(int, int, int);
-void DrawLevelFieldThruMask_MM(int, int);
 void ErdreichAnbroeckeln(int, int);
 void DrawScreenElement_MM(int, int, int);
-void DrawLevelElement_MM(int, int, int);
 void DrawScreenField_MM(int, int);
 void DrawLevelField_MM(int, int);
 void DrawMiniElement_MM(int, int, int);
@@ -92,7 +86,6 @@ void DrawElement_MM(int, int, int);
 void DrawWallsExt_MM(int, int, int, int);
 void DrawWalls_MM(int, int, int);
 void DrawWallsAnimation_MM(int, int, int, int, int);
-void DrawMiniLevel_MM(int, int, int, int);
 void DrawMicroLevel_MM(int, int, boolean);
 void DrawTileCursor_MM(int, boolean);
 
diff --git a/src/libgame/image.c b/src/libgame/image.c
index 1a61ff92..e182a495 100644
--- a/src/libgame/image.c
+++ b/src/libgame/image.c
@@ -139,13 +139,6 @@ char *getTokenFromImageID(int graphic)
   return (file_list != NULL ? file_list->token : NULL);
 }
 
-char *getFilenameFromImageID(int graphic)
-{
-  struct FileInfo *file_list = getImageListEntryFromImageID(graphic);
-
-  return (file_list != NULL ? file_list->filename : NULL);
-}
-
 int getImageIDFromToken(char *token)
 {
   struct FileInfo *file_list = image_info->file_list;
diff --git a/src/libgame/image.h b/src/libgame/image.h
index 9be07c5b..04952e74 100644
--- a/src/libgame/image.h
+++ b/src/libgame/image.h
@@ -76,7 +76,6 @@ Bitmap **getBitmapsFromImageID(int);
 int getOriginalImageWidthFromImageID(int);
 int getOriginalImageHeightFromImageID(int);
 char *getTokenFromImageID(int);
-char *getFilenameFromImageID(int);
 int getImageIDFromToken(char *);
 char *getImageConfigFilename(void);
 int getImageListPropertyMappingSize(void);
diff --git a/src/libgame/joystick.c b/src/libgame/joystick.c
index 4a1bc7d5..14ba7d2c 100644
--- a/src/libgame/joystick.c
+++ b/src/libgame/joystick.c
@@ -21,71 +21,6 @@
 // platform independent joystick functions
 // ============================================================================
 
-#define TRANSLATE_JOYSYMBOL_TO_JOYNAME	0
-#define TRANSLATE_JOYNAME_TO_JOYSYMBOL	1
-
-static void translate_joyname(int *joysymbol, char **name, int mode)
-{
-  static struct
-  {
-    int joysymbol;
-    char *name;
-  } translate_joy[] =
-  {
-    { JOY_LEFT,		"joystick_left" },
-    { JOY_RIGHT,	"joystick_right" },
-    { JOY_UP,		"joystick_up" },
-    { JOY_DOWN,		"joystick_down" },
-    { JOY_BUTTON_1,	"joystick_button_1" },
-    { JOY_BUTTON_2,	"joystick_button_2" },
-  };
-
-  int i;
-
-  if (mode == TRANSLATE_JOYSYMBOL_TO_JOYNAME)
-  {
-    *name = "[undefined]";
-
-    for (i = 0; i < 6; i++)
-    {
-      if (*joysymbol == translate_joy[i].joysymbol)
-      {
-	*name = translate_joy[i].name;
-	break;
-      }
-    }
-  }
-  else if (mode == TRANSLATE_JOYNAME_TO_JOYSYMBOL)
-  {
-    *joysymbol = 0;
-
-    for (i = 0; i < 6; i++)
-    {
-      if (strEqual(*name, translate_joy[i].name))
-      {
-	*joysymbol = translate_joy[i].joysymbol;
-	break;
-      }
-    }
-  }
-}
-
-char *getJoyNameFromJoySymbol(int joysymbol)
-{
-  char *name;
-
-  translate_joyname(&joysymbol, &name, TRANSLATE_JOYSYMBOL_TO_JOYNAME);
-  return name;
-}
-
-int getJoySymbolFromJoyName(char *name)
-{
-  int joysymbol;
-
-  translate_joyname(&joysymbol, &name, TRANSLATE_JOYNAME_TO_JOYSYMBOL);
-  return joysymbol;
-}
-
 int getJoystickNrFromDeviceName(char *device_name)
 {
   char c;
@@ -173,25 +108,6 @@ static int JoystickPositionPercent(int center, int border, int actual)
   return percent;
 }
 
-void CheckJoystickData(void)
-{
-  int i;
-  int distance = 100;
-
-  for (i = 0; i < MAX_PLAYERS; i++)
-  {
-    if (setup.input[i].joy.xleft >= setup.input[i].joy.xmiddle)
-      setup.input[i].joy.xleft = setup.input[i].joy.xmiddle - distance;
-    if (setup.input[i].joy.xright <= setup.input[i].joy.xmiddle)
-      setup.input[i].joy.xright = setup.input[i].joy.xmiddle + distance;
-
-    if (setup.input[i].joy.yupper >= setup.input[i].joy.ymiddle)
-      setup.input[i].joy.yupper = setup.input[i].joy.ymiddle - distance;
-    if (setup.input[i].joy.ylower <= setup.input[i].joy.ymiddle)
-      setup.input[i].joy.ylower = setup.input[i].joy.ymiddle + distance;
-  }
-}
-
 int JoystickExt(int player_nr, boolean use_as_joystick_nr)
 {
   int joystick_nr = joystick.nr[player_nr];
@@ -305,24 +221,3 @@ int AnyJoystickButton(void)
 
   return result;
 }
-
-void DeactivateJoystick(void)
-{
-  /* Temporarily deactivate joystick. This is needed for calibration
-     screens, where the player has to select a joystick device that
-     should be calibrated. If there is a totally uncalibrated joystick
-     active, it may be impossible (due to messed up input from joystick)
-     to select the joystick device to calibrate even when trying to use
-     the mouse or keyboard to select the device. */
-
-  if (joystick.status & JOYSTICK_AVAILABLE)
-    joystick.status &= ~JOYSTICK_ACTIVE;
-}
-
-void ActivateJoystick(void)
-{
-  // reactivate temporarily deactivated joystick
-
-  if (joystick.status & JOYSTICK_AVAILABLE)
-    joystick.status |= JOYSTICK_ACTIVE;
-}
diff --git a/src/libgame/joystick.h b/src/libgame/joystick.h
index e43844ed..6da683f3 100644
--- a/src/libgame/joystick.h
+++ b/src/libgame/joystick.h
@@ -67,20 +67,14 @@
 #define JOY_BUTTON_NEW_PRESSED	2
 #define JOY_BUTTON_NEW_RELEASED	3
 
-char *getJoyNameFromJoySymbol(int);
-int getJoySymbolFromJoyName(char *);
 int getJoystickNrFromDeviceName(char *);
 char *getDeviceNameFromJoystickNr(int);
 char *getFormattedJoystickName(const char *);
 
-void CheckJoystickData(void);
 int Joystick(int);
 int JoystickExt(int, boolean);
 int JoystickButton(int);
 int AnyJoystick(void);
 int AnyJoystickButton(void);
 
-void DeactivateJoystick(void);
-void ActivateJoystick(void);
-
 #endif	// JOYSTICK_H
diff --git a/src/libgame/sdl.c b/src/libgame/sdl.c
index 094b6565..baa53340 100644
--- a/src/libgame/sdl.c
+++ b/src/libgame/sdl.c
@@ -1903,22 +1903,6 @@ void SDLPutPixel(Bitmap *dst_bitmap, int x, int y, Pixel pixel)
 // quick (no, it's slow) and dirty hack to "invert" rectangle inside SDL surface
 // ----------------------------------------------------------------------------
 
-void SDLInvertArea(Bitmap *bitmap, int src_x, int src_y,
-		   int width, int height, Uint32 color)
-{
-  int x, y;
-
-  for (y = src_y; y < src_y + height; y++)
-  {
-    for (x = src_x; x < src_x + width; x++)
-    {
-      Uint32 pixel = SDLGetPixel(bitmap, x, y);
-
-      SDLPutPixel(bitmap, x, y, pixel == BLACK_PIXEL ? color : BLACK_PIXEL);
-    }
-  }
-}
-
 void SDLCopyInverseMasked(Bitmap *src_bitmap, Bitmap *dst_bitmap,
 			  int src_x, int src_y, int width, int height,
 			  int dst_x, int dst_y)
diff --git a/src/libgame/sdl.h b/src/libgame/sdl.h
index a45e68ec..f279ebc4 100644
--- a/src/libgame/sdl.h
+++ b/src/libgame/sdl.h
@@ -428,7 +428,6 @@ void SDLDrawLine(Bitmap *, int, int, int, int, Uint32);
 Pixel SDLGetPixel(Bitmap *, int, int);
 void SDLPutPixel(Bitmap *, int, int, Pixel);
 
-void SDLInvertArea(Bitmap *, int, int, int, int, Uint32);
 void SDLCopyInverseMasked(Bitmap *, Bitmap *, int, int, int, int, int, int);
 
 Bitmap *SDLZoomBitmap(Bitmap *, int, int);
diff --git a/src/libgame/setup.c b/src/libgame/setup.c
index 5c16feb5..6b10a51e 100644
--- a/src/libgame/setup.c
+++ b/src/libgame/setup.c
@@ -47,8 +47,6 @@ static char *levelclass_desc[NUM_LEVELCLASS_DESC] =
 #define TOKEN_VALUE_POSITION_DEFAULT		40
 #define TOKEN_COMMENT_POSITION_DEFAULT		60
 
-#define MAX_COOKIE_LEN				256
-
 #define TREE_NODE_TYPE_DEFAULT			0
 #define TREE_NODE_TYPE_PARENT			1
 #define TREE_NODE_TYPE_GROUP			2
@@ -2003,21 +2001,6 @@ void SetFilePermissions(char *filename, int permission_class)
   chmod(filename, perms);
 }
 
-char *getCookie(char *file_type)
-{
-  static char cookie[MAX_COOKIE_LEN + 1];
-
-  if (strlen(program.cookie_prefix) + 1 +
-      strlen(file_type) + strlen("_FILE_VERSION_x.x") > MAX_COOKIE_LEN)
-    return "[COOKIE ERROR]";	// should never happen
-
-  sprintf(cookie, "%s_%s_FILE_VERSION_%d.%d",
-	  program.cookie_prefix, file_type,
-	  program.version_super, program.version_major);
-
-  return cookie;
-}
-
 void fprintFileHeader(FILE *file, char *basename)
 {
   char *prefix = "# ";
diff --git a/src/libgame/setup.h b/src/libgame/setup.h
index bf1bf785..b06d5f87 100644
--- a/src/libgame/setup.h
+++ b/src/libgame/setup.h
@@ -345,7 +345,6 @@ void InitMainUserDataDirectory(void);
 void InitUserDataDirectory(void);
 void SetFilePermissions(char *, int);
 
-char *getCookie(char *);
 void fprintFileHeader(FILE *, char *);
 int getFileVersionFromCookieString(const char *);
 boolean checkCookieString(const char *, const char *);
diff --git a/src/libgame/system.c b/src/libgame/system.c
index 5916fdcc..97b4269c 100644
--- a/src/libgame/system.c
+++ b/src/libgame/system.c
@@ -1012,12 +1012,6 @@ void BlitToScreenMasked(Bitmap *bitmap,
     BlitTextureMasked(bitmap, src_x, src_y, width, height, dst_x, dst_y);
 }
 
-void DrawSimpleBlackLine(Bitmap *bitmap, int from_x, int from_y,
-			 int to_x, int to_y)
-{
-  SDLDrawSimpleLine(bitmap, from_x, from_y, to_x, to_y, BLACK_PIXEL);
-}
-
 void DrawSimpleWhiteLine(Bitmap *bitmap, int from_x, int from_y,
 			 int to_x, int to_y)
 {
@@ -1086,15 +1080,6 @@ Pixel GetPixelFromRGB(Bitmap *bitmap, unsigned int color_r,
   return SDL_MapRGB(bitmap->surface->format, color_r, color_g, color_b);
 }
 
-Pixel GetPixelFromRGBcompact(Bitmap *bitmap, unsigned int color)
-{
-  unsigned int color_r = (color >> 16) & 0xff;
-  unsigned int color_g = (color >>  8) & 0xff;
-  unsigned int color_b = (color >>  0) & 0xff;
-
-  return GetPixelFromRGB(bitmap, color_r, color_g, color_b);
-}
-
 void KeyboardAutoRepeatOn(void)
 {
   keyrepeat_status = TRUE;
diff --git a/src/libgame/system.h b/src/libgame/system.h
index 4dbcaab9..115a234e 100644
--- a/src/libgame/system.h
+++ b/src/libgame/system.h
@@ -2009,12 +2009,10 @@ void BlitTexture(Bitmap *, int, int, int, int, int, int);
 void BlitTextureMasked(Bitmap *, int, int, int, int, int, int);
 void BlitToScreen(Bitmap *, int, int, int, int, int, int);
 void BlitToScreenMasked(Bitmap *, int, int, int, int, int, int);
-void DrawSimpleBlackLine(Bitmap *, int, int, int, int);
 void DrawSimpleWhiteLine(Bitmap *, int, int, int, int);
 void DrawLines(Bitmap *, struct XY *, int, Pixel);
 Pixel GetPixel(Bitmap *, int, int);
 Pixel GetPixelFromRGB(Bitmap *, unsigned int,unsigned int,unsigned int);
-Pixel GetPixelFromRGBcompact(Bitmap *, unsigned int);
 
 void KeyboardAutoRepeatOn(void);
 void KeyboardAutoRepeatOff(void);
diff --git a/src/libgame/text.c b/src/libgame/text.c
index e198c810..280aae8a 100644
--- a/src/libgame/text.c
+++ b/src/libgame/text.c
@@ -223,12 +223,6 @@ void DrawTextSAligned(int x, int y, char *text, int font_nr, int align)
 	   gfx.sy + y, text, font_nr);
 }
 
-void DrawTextAligned(int x, int y, char *text, int font_nr, int align)
-{
-  DrawText(ALIGNED_XPOS(x, getTextWidth(text, font_nr), align),
-	   y, text, font_nr);
-}
-
 void DrawText(int x, int y, char *text, int font_nr)
 {
   int mask_mode = BLIT_OPAQUE;
diff --git a/src/libgame/text.h b/src/libgame/text.h
index fff639f6..840bf368 100644
--- a/src/libgame/text.h
+++ b/src/libgame/text.h
@@ -100,7 +100,6 @@ void DrawTextFCentered(int, int, char *, ...);
 void DrawTextS(int, int, int, char *);
 void DrawTextSCentered(int, int, char *);
 void DrawTextSAligned(int, int, char *, int, int);
-void DrawTextAligned(int, int, char *, int, int);
 void DrawText(int, int, char *, int);
 void DrawTextExt(DrawBuffer *, int, int, char *, int, int);
 
diff --git a/src/libgame/zip/ioapi.c b/src/libgame/zip/ioapi.c
index 5b6fcc63..5d9c10bd 100644
--- a/src/libgame/zip/ioapi.c
+++ b/src/libgame/zip/ioapi.c
@@ -81,7 +81,6 @@ void fill_zlib_filefunc64_32_def_from_filefunc32(zlib_filefunc64_32_def *p_filef
     p_filefunc64_32->ztell32_file = p_filefunc32->ztell_file;
 }
 
-static voidpf   ZCALLBACK fopen_file_func(ZIP_UNUSED voidpf opaque, const char *filename, int mode);
 static uint32_t ZCALLBACK fread_file_func(voidpf opaque, voidpf stream, void* buf, uint32_t size);
 static uint32_t ZCALLBACK fwrite_file_func(voidpf opaque, voidpf stream, const void *buf, uint32_t size);
 static uint64_t ZCALLBACK ftell64_file_func(voidpf opaque, voidpf stream);
@@ -109,25 +108,6 @@ static voidpf file_build_ioposix(FILE *file, const char *filename)
     return (voidpf)ioposix;
 }
 
-static voidpf ZCALLBACK fopen_file_func(ZIP_UNUSED 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_build_ioposix(file, filename);
-    }
-    return file;
-}
-
 static voidpf ZCALLBACK fopen64_file_func(ZIP_UNUSED voidpf opaque, const void *filename, int mode)
 {
     FILE* file = NULL;
@@ -172,31 +152,6 @@ static voidpf ZCALLBACK fopendisk64_file_func(voidpf opaque, voidpf stream, uint
     return ret;
 }
 
-static voidpf ZCALLBACK fopendisk_file_func(voidpf opaque, voidpf stream, uint32_t number_disk, int mode)
-{
-    FILE_IOPOSIX *ioposix = NULL;
-    char *diskFilename = NULL;
-    voidpf ret = NULL;
-    int i = 0;
-
-    if (stream == NULL)
-        return NULL;
-    ioposix = (FILE_IOPOSIX*)stream;
-    diskFilename = (char*)malloc(ioposix->filenameLength * sizeof(char));
-    strncpy(diskFilename, (const char*)ioposix->filename, ioposix->filenameLength);
-    for (i = ioposix->filenameLength - 1; i >= 0; i -= 1)
-    {
-        if (diskFilename[i] != '.')
-            continue;
-        snprintf(&diskFilename[i], ioposix->filenameLength - i, ".z%02u", number_disk + 1);
-        break;
-    }
-    if (i >= 0)
-        ret = fopen_file_func(opaque, diskFilename, mode);
-    free(diskFilename);
-    return ret;
-}
-
 static uint32_t ZCALLBACK fread_file_func(ZIP_UNUSED voidpf opaque, voidpf stream, void* buf, uint32_t size)
 {
     FILE_IOPOSIX *ioposix = NULL;
@@ -219,17 +174,6 @@ static uint32_t ZCALLBACK fwrite_file_func(ZIP_UNUSED voidpf opaque, voidpf stre
     return written;
 }
 
-static long ZCALLBACK ftell_file_func(ZIP_UNUSED voidpf opaque, voidpf stream)
-{
-    FILE_IOPOSIX *ioposix = NULL;
-    long ret = -1;
-    if (stream == NULL)
-        return ret;
-    ioposix = (FILE_IOPOSIX*)stream;
-    ret = ftell(ioposix->file);
-    return ret;
-}
-
 static uint64_t ZCALLBACK ftell64_file_func(ZIP_UNUSED voidpf opaque, voidpf stream)
 {
     FILE_IOPOSIX *ioposix = NULL;
@@ -241,35 +185,6 @@ static uint64_t ZCALLBACK ftell64_file_func(ZIP_UNUSED voidpf opaque, voidpf str
     return ret;
 }
 
-static long ZCALLBACK fseek_file_func(ZIP_UNUSED voidpf opaque, voidpf stream, uint32_t offset, int origin)
-{
-    FILE_IOPOSIX *ioposix = NULL;
-    int fseek_origin = 0;
-    long ret = 0;
-
-    if (stream == NULL)
-        return -1;
-    ioposix = (FILE_IOPOSIX*)stream;
-
-    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;
-    }
-    if (fseek(ioposix->file, offset, fseek_origin) != 0)
-        ret = -1;
-    return ret;
-}
-
 static long ZCALLBACK fseek64_file_func(ZIP_UNUSED voidpf opaque, voidpf stream, uint64_t offset, int origin)
 {
     FILE_IOPOSIX *ioposix = NULL;
@@ -326,19 +241,6 @@ static int ZCALLBACK ferror_file_func(ZIP_UNUSED voidpf opaque, voidpf stream)
     return ret;
 }
 
-void fill_fopen_filefunc(zlib_filefunc_def *pzlib_filefunc_def)
-{
-    pzlib_filefunc_def->zopen_file = fopen_file_func;
-    pzlib_filefunc_def->zopendisk_file = fopendisk_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;
diff --git a/src/libgame/zip/ioapi.h b/src/libgame/zip/ioapi.h
index 4b21ef34..3689881d 100644
--- a/src/libgame/zip/ioapi.h
+++ b/src/libgame/zip/ioapi.h
@@ -115,7 +115,6 @@ typedef struct zlib_filefunc64_def_s
     voidpf               opaque;
 } zlib_filefunc64_def;
 
-void fill_fopen_filefunc(zlib_filefunc_def *pzlib_filefunc_def);
 void fill_fopen64_filefunc(zlib_filefunc64_def *pzlib_filefunc_def);
 
 /* now internal definition, only for zip.c and unzip.h */
diff --git a/src/libgame/zip/iowin32.c b/src/libgame/zip/iowin32.c
index 53a96e65..2f739cd4 100644
--- a/src/libgame/zip/iowin32.c
+++ b/src/libgame/zip/iowin32.c
@@ -536,32 +536,6 @@ int ZCALLBACK win32_error_file_func(voidpf opaque, voidpf stream)
     return ret;
 }
 
-void fill_win32_filefunc(zlib_filefunc_def *pzlib_filefunc_def)
-{
-    pzlib_filefunc_def->zopen_file = win32_open_file_func;
-    pzlib_filefunc_def->zopendisk_file = win32_opendisk_file_func;
-    pzlib_filefunc_def->zread_file = win32_read_file_func;
-    pzlib_filefunc_def->zwrite_file = win32_write_file_func;
-    pzlib_filefunc_def->ztell_file = win32_tell_file_func;
-    pzlib_filefunc_def->zseek_file = win32_seek_file_func;
-    pzlib_filefunc_def->zclose_file = win32_close_file_func;
-    pzlib_filefunc_def->zerror_file = win32_error_file_func;
-    pzlib_filefunc_def->opaque = NULL;
-}
-
-void fill_win32_filefunc64(zlib_filefunc64_def *pzlib_filefunc_def)
-{
-    pzlib_filefunc_def->zopen64_file = win32_open64_file_func;
-    pzlib_filefunc_def->zopendisk64_file = win32_opendisk64_file_func;
-    pzlib_filefunc_def->zread_file = win32_read_file_func;
-    pzlib_filefunc_def->zwrite_file = win32_write_file_func;
-    pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
-    pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
-    pzlib_filefunc_def->zclose_file = win32_close_file_func;
-    pzlib_filefunc_def->zerror_file = win32_error_file_func;
-    pzlib_filefunc_def->opaque = NULL;
-}
-
 void fill_win32_filefunc64A(zlib_filefunc64_def *pzlib_filefunc_def)
 {
     pzlib_filefunc_def->zopen64_file = win32_open64_file_funcA;
@@ -575,17 +549,4 @@ void fill_win32_filefunc64A(zlib_filefunc64_def *pzlib_filefunc_def)
     pzlib_filefunc_def->opaque = NULL;
 }
 
-void fill_win32_filefunc64W(zlib_filefunc64_def *pzlib_filefunc_def)
-{
-    pzlib_filefunc_def->zopen64_file = win32_open64_file_funcW;
-    pzlib_filefunc_def->zopendisk64_file = win32_opendisk64_file_funcW;
-    pzlib_filefunc_def->zread_file = win32_read_file_func;
-    pzlib_filefunc_def->zwrite_file = win32_write_file_func;
-    pzlib_filefunc_def->ztell64_file = win32_tell64_file_func;
-    pzlib_filefunc_def->zseek64_file = win32_seek64_file_func;
-    pzlib_filefunc_def->zclose_file = win32_close_file_func;
-    pzlib_filefunc_def->zerror_file = win32_error_file_func;
-    pzlib_filefunc_def->opaque = NULL;
-}
-
 #endif // _WIN32
diff --git a/src/libgame/zip/iowin32.h b/src/libgame/zip/iowin32.h
index 7ce4fc9f..a6265ea3 100644
--- a/src/libgame/zip/iowin32.h
+++ b/src/libgame/zip/iowin32.h
@@ -23,10 +23,7 @@
 extern "C" {
 #endif
 
-void fill_win32_filefunc(zlib_filefunc_def *pzlib_filefunc_def);
-void fill_win32_filefunc64(zlib_filefunc64_def *pzlib_filefunc_def);
 void fill_win32_filefunc64A(zlib_filefunc64_def *pzlib_filefunc_def);
-void fill_win32_filefunc64W(zlib_filefunc64_def *pzlib_filefunc_def);
 
 #ifdef __cplusplus
 }
-- 
2.34.1