--- a/src/dmres.c	Mon May 14 11:20:05 2018 +0300
+++ b/src/dmres.c	Mon May 14 11:45:33 2018 +0300
@@ -168,105 +168,105 @@
 }
 
 
-static void dm_stdio_fclose(DMResource * f)
+static void dm_stdio_fclose(DMResource *fh)
 {
-    if (f->fh != NULL)
+    if (fh->fh != NULL)
     {
-        fclose(f->fh);
-        f->fh = NULL;
+        fclose(fh->fh);
+        fh->fh = NULL;
     }
 }
 
 
-static int dm_stdio_ferror(DMResource * f)
+static int dm_stdio_ferror(DMResource *fh)
 {
-    return f->error;
+    return fh->error;
 }
 
 
-static off_t dm_stdio_ftell(DMResource * f)
+static off_t dm_stdio_ftell(DMResource *fh)
 {
-    return ftello(f->fh);
+    return ftello(fh->fh);
 }
 
 
-static int dm_stdio_fseek(DMResource *f, const off_t pos, const int whence)
+static int dm_stdio_fseek(DMResource *fh, const off_t pos, const int whence)
 {
-    int ret = fseeko(f->fh, pos, whence);
-    f->error = dmGetErrno();
+    int ret = fseeko(fh->fh, pos, whence);
+    fh->error = dmGetErrno();
     return ret;
 }
 
 
-static int dm_stdio_freset(DMResource * f)
+static int dm_stdio_freset(DMResource *fh)
 {
-    if (f->fh != NULL)
-        return dm_stdio_fseek(f, 0, SEEK_SET);
+    if (fh->fh != NULL)
+        return dm_stdio_fseek(fh, 0, SEEK_SET);
     else
         return DMERR_OK;
 }
 
 
-static off_t dm_stdio_fsize(DMResource *f)
+static off_t dm_stdio_fsize(DMResource *fh)
 {
     off_t savePos, fileSize;
 
     // Check if the size is cached
-    if (f->rawSize != 0)
-        return f->rawSize;
+    if (fh->rawSize != 0)
+        return fh->rawSize;
 
     // Get file size
-    if ((savePos = dm_stdio_ftell(f)) < 0)
+    if ((savePos = dm_stdio_ftell(fh)) < 0)
         return -1;
 
-    if (dm_stdio_fseek(f, 0, SEEK_END) != 0)
+    if (dm_stdio_fseek(fh, 0, SEEK_END) != 0)
         return -1;
 
-    if ((fileSize = dm_stdio_ftell(f)) < 0)
+    if ((fileSize = dm_stdio_ftell(fh)) < 0)
         return -1;
 
-    if (dm_stdio_fseek(f, savePos, SEEK_SET) != 0)
+    if (dm_stdio_fseek(fh, savePos, SEEK_SET) != 0)
         return -1;
 
-    f->rawSize = fileSize;
+    fh->rawSize = fileSize;
     return fileSize;
 }
 
 
-static BOOL dm_stdio_feof(DMResource * f)
+static BOOL dm_stdio_feof(DMResource *fh)
 {
-    return feof(f->fh);
+    return feof(fh->fh);
 }
 
 
-static int dm_stdio_fgetc(DMResource * f)
+static int dm_stdio_fgetc(DMResource *fh)
 {
-    int ret = fgetc(f->fh);
-    f->error = dmGetErrno();
+    int ret = fgetc(fh->fh);
+    fh->error = dmGetErrno();
     return ret;
 }
 
 
-static int dm_stdio_fputc(int v, DMResource * f)
+static int dm_stdio_fputc(int v, DMResource *fh)
 {
-    int ret = fputc(v, f->fh);
-    f->error = dmGetErrno();
+    int ret = fputc(v, fh->fh);
+    fh->error = dmGetErrno();
     return ret;
 }
 
 
-static size_t dm_stdio_fread(void *ptr, size_t size, size_t nmemb, DMResource * f)
+static size_t dm_stdio_fread(void *ptr, size_t size, size_t nmemb, DMResource *fh)
 {
-    size_t ret = fread(ptr, size, nmemb, f->fh);
-    f->error = dmGetErrno();
+    size_t ret = fread(ptr, size, nmemb, fh->fh);
+    fh->error = dmGetErrno();
     return ret;
 }
 
 
-static size_t dm_stdio_fwrite(const void *ptr, size_t size, size_t nmemb, DMResource * f)
+static size_t dm_stdio_fwrite(const void *ptr, size_t size, size_t nmemb, DMResource *fh)
 {
-    size_t ret = fwrite(ptr, size, nmemb, f->fh);
-    f->error = dmGetErrno();
+    size_t ret = fwrite(ptr, size, nmemb, fh->fh);
+    fh->error = dmGetErrno();
     return ret;
 }
 
@@ -520,13 +520,13 @@
 }
 
 
-static int dm_pack_fopen(DMResource * f)
+static int dm_pack_fopen(DMResource *fh)
 {
-    if ((f->flags & DMF_LOADED_RAW) == 0)
+    if ((fh->flags & DMF_LOADED_RAW) == 0)
     {
-        int ret = dm_pack_preload(f);
+        int ret = dm_pack_preload(fh);
         if (ret == DMERR_OK)
-            f->flags |= DMF_LOADED_RAW;
+            fh->flags |= DMF_LOADED_RAW;
 
         return ret;
     }
@@ -535,28 +535,28 @@
 }
 
 
-static void dm_pack_fclose(DMResource * f)
+static void dm_pack_fclose(DMResource *fh)
 {
-    if ((f->flags & DMF_PERSIST) == 0)
-        dmResourceFreeRawData(f);
+    if ((fh->flags & DMF_PERSIST) == 0)
+        dmResourceFreeRawData(fh);
 }
 #endif
 
 
-static int dm_mem_freset(DMResource * f)
+static int dm_mem_freset(DMResource *fh)
 {
-    f->rawOffset = 0;
+    fh->rawOffset = 0;
     return DMERR_OK;
 }
 
 
-static int dm_mem_ferror(DMResource * f)
+static int dm_mem_ferror(DMResource *fh)
 {
-    return f->error;
+    return fh->error;
 }
 
 
-static int dm_mem_fseek(DMResource * f, const off_t offset, const int whence)
+static int dm_mem_fseek(DMResource *fh, const off_t offset, const int whence)
 {
     off_t newPos;
 
@@ -568,11 +568,11 @@
             break;
 
         case SEEK_CUR:
-            newPos = f->rawOffset + offset;
+            newPos = fh->rawOffset + offset;
             break;
 
         case SEEK_END:
-            newPos = f->rawSize + offset;
+            newPos = fh->rawSize + offset;
             break;
 
         default:
@@ -580,71 +580,71 @@
     }
 
     // Set the new position
-    f->rawOffset = newPos;
+    fh->rawOffset = newPos;
 
     // Check the new position
-    if (newPos < 0 && (size_t) newPos >= f->rawSize)
+    if (newPos < 0 && (size_t) newPos >= fh->rawSize)
         return -1;
 
     return 0;
 }
 
 
-static off_t dm_mem_fsize(DMResource * f)
+static off_t dm_mem_fsize(DMResource *fh)
 {
-    return f->rawSize;
+    return fh->rawSize;
 }
 
 
-static off_t dm_mem_ftell(DMResource * f)
+static off_t dm_mem_ftell(DMResource *fh)
 {
-    return f->rawOffset;
+    return fh->rawOffset;
 }
 
 
-static BOOL dm_mem_feof(DMResource * f)
+static BOOL dm_mem_feof(DMResource *fh)
 {
     // Check for EOF
-    if ((size_t) f->rawOffset <= f->rawSize)
+    if ((size_t) fh->rawOffset <= fh->rawSize)
         return FALSE;
     else
         return TRUE;
 }
 
 
-static int dm_mem_fgetc(DMResource * f)
+static int dm_mem_fgetc(DMResource *fh)
 {
     // Check for EOF
-    if ((size_t) f->rawOffset < f->rawSize)
-        return f->rawData[f->rawOffset++];
+    if ((size_t) fh->rawOffset < fh->rawSize)
+        return fh->rawData[fh->rawOffset++];
     else
         return EOF;
 }
 
 
-static size_t dm_mem_fread(void *buf, size_t size, size_t nmemb, DMResource * f)
+static size_t dm_mem_fread(void *buf, size_t size, size_t nmemb, DMResource *fh)
 {
     size_t length = (size * nmemb);
 
     // Check if we can read the whole chunk
-    if (((size_t) f->rawOffset + length) >= f->rawSize)
+    if (((size_t) fh->rawOffset + length) >= fh->rawSize)
     {
-        nmemb = (f->rawSize - f->rawOffset) / size;
+        nmemb = (fh->rawSize - fh->rawOffset) / size;
         length = size * nmemb;
     }
 
-    memcpy(buf, f->rawData + f->rawOffset, length);
-    f->rawOffset += length;
+    memcpy(buf, fh->rawData + fh->rawOffset, length);
+    fh->rawOffset += length;
     return nmemb;
 }
 
 
-static int dm_mem_fputc(int ch, DMResource * f)
+static int dm_mem_fputc(int ch, DMResource *fh)
 {
     // Check for EOF
-    if ((size_t) f->rawOffset < f->rawSize)
+    if ((size_t) fh->rawOffset < fh->rawSize)
     {
-        f->rawData[f->rawOffset++] = ch;
+        fh->rawData[fh->rawOffset++] = ch;
         return ch;
     }
     else
@@ -652,21 +652,21 @@
 }
 
 
-static size_t dm_mem_fwrite(const void *buf, size_t size, size_t nmemb, DMResource * f)
+static size_t dm_mem_fwrite(const void *buf, size_t size, size_t nmemb, DMResource *fh)
 {
     size_t length = (size * nmemb);
 
     // Check if we can write the whole chunk
-    if (((size_t) f->rawOffset + length) >= f->rawSize)
+    if (((size_t) fh->rawOffset + length) >= fh->rawSize)
     {
-        nmemb = (f->rawSize - f->rawOffset) / size;
+        nmemb = (fh->rawSize - fh->rawOffset) / size;
         length = size * nmemb;
     }
 
     if (length > 0)
     {
-        memcpy(f->rawData + f->rawOffset, buf, length);
-        f->rawOffset += length;
+        memcpy(fh->rawData + fh->rawOffset, buf, length);
+        fh->rawOffset += length;
     }
     return nmemb;
 }
@@ -876,84 +876,84 @@
 #endif
 
 
-void dmf_close(DMResource * f)
+void dmf_close(DMResource *handle)
 {
-    if (f == NULL)
+    if (handle == NULL)
         return;
 
-    dmResourceUnref(f);
+    dmResourceUnref(handle);
 
-    if (f->fops->fclose != NULL)
-        f->fops->fclose(f);
+    if (handle->fops->fclose != NULL)
+        handle->fops->fclose(handle);
 }
 
 
-int dmfreset(DMResource *f)
+int dmfreset(DMResource *fh)
 {
-    if (f == NULL)
+    if (fh == NULL)
         return DMERR_NULLPTR;
 
-    if (f->fops == NULL || f->fops->freset == NULL)
+    if (fh->fops == NULL || fh->fops->freset == NULL)
         return DMERR_OK;
 
-    return f->fops->freset(f);
+    return fh->fops->freset(fh);
 }
 
-int dmferror(DMResource * f)
+int dmferror(DMResource *fh)
 {
-    f->atime = time(NULL);
-    return f->fops->ferror(f);
+    fh->atime = time(NULL);
+    return fh->fops->ferror(fh);
 }
 
-int dmfseek(DMResource * f, const off_t offset, int whence)
+int dmfseek(DMResource *fh, const off_t offset, const int whence)
 {
-    f->atime = time(NULL);
-    return f->fops->fseek(f, offset, whence);
+    fh->atime = time(NULL);
+    return fh->fops->fseek(fh, offset, whence);
 }
 
-off_t dmfsize(DMResource * f)
+off_t dmfsize(DMResource *fh)
 {
-    f->atime = time(NULL);
-    return f->fops->fsize(f);
+    fh->atime = time(NULL);
+    return fh->fops->fsize(fh);
 }
 
-off_t dmftell(DMResource * f)
+off_t dmftell(DMResource *fh)
 {
-    f->atime = time(NULL);
-    return f->fops->ftell(f);
+    fh->atime = time(NULL);
+    return fh->fops->ftell(fh);
 }
 
-BOOL dmfeof(DMResource * f)
+BOOL dmfeof(DMResource *fh)
 {
-    f->atime = time(NULL);
-    return f->fops->feof(f);
+    fh->atime = time(NULL);
+    return fh->fops->feof(fh);
 }
 
-int dmfgetc(DMResource * f)
+int dmfgetc(DMResource *fh)
 {
-    f->atime = time(NULL);
-    return f->fops->fgetc(f);
+    fh->atime = time(NULL);
+    return fh->fops->fgetc(fh);
 }
 
-int dmfputc(int v, DMResource * f)
+int dmfputc(const int val, DMResource *fh)
 {
-    f->atime = time(NULL);
-    return f->fops->fputc(v, f);
+    fh->atime = time(NULL);
+    return fh->fops->fputc(val, fh);
 }
 
-size_t dmfread(void *ptr, size_t size, size_t nmemb, DMResource * f)
+size_t dmfread(void *ptr, size_t size, size_t nmemb, DMResource *fh)
 {
-    f->atime = time(NULL);
-    return f->fops->fread(ptr, size, nmemb, f);
+    fh->atime = time(NULL);
+    return fh->fops->fread(ptr, size, nmemb, fh);
 }
 
-size_t dmfwrite(const void *ptr, size_t size, size_t nmemb, DMResource * f)
+size_t dmfwrite(const void *ptr, size_t size, size_t nmemb, DMResource *fh)
 {
-    f->atime = time(NULL);
-    return f->fops->fwrite(ptr, size, nmemb, f);
+    fh->atime = time(NULL);
+    return fh->fops->fwrite(ptr, size, nmemb, fh);
 }
 
-char *dmfgets(char *str, int size, DMResource * f)
+char *dmfgets(char *str, const int size, DMResource *fh)
 {
     char *ptr = str, *end = str + size - 1;
     int c;
@@ -961,7 +961,7 @@
     if (size <= 0)
         return NULL;
 
-    while (ptr < end && (c = f->fops->fgetc(f)) != EOF)
+    while (ptr < end && (c = fh->fops->fgetc(fh)) != EOF)
     {
         *ptr++ = c;
         if (c == '\n')
@@ -1259,27 +1259,27 @@
 
 /* Helper resource access routines
  */
-int dmf_read_str(DMResource *f, void *s, size_t l)
+BOOL dmf_read_str(DMResource *fh, void *ptr, const size_t len)
 {
-    return dmfread(s, 1, l, f) == l;
+    return dmfread(ptr, len, 1, fh) == 1;
 }
 
 
-BOOL dmf_read_byte(DMResource *f, Uint8 *val)
+BOOL dmf_read_byte(DMResource *fh, Uint8 *val)
 {
-    int tmp = dmfgetc(f);
+    int tmp = dmfgetc(fh);
     *val = tmp;
     return tmp != EOF;
 }
 
 
-#define DM_DEFINE_FFUNC(xname, xtype, xmacro)          \
-BOOL dmf_read_ ## xname (DMResource *f, xtype *v) {   \
-    xtype result;                                     \
-    if (dmfread(&result, sizeof( xtype ), 1, f) != 1) \
-        return FALSE;                                 \
-    *v = DM_ ## xmacro ## _TO_NATIVE (result);        \
-    return TRUE;                                      \
+#define DM_DEFINE_FFUNC(xname, xtype, xmacro)           \
+BOOL dmf_read_ ## xname (DMResource *fh, xtype *val) {  \
+    xtype result;                                       \
+    if (dmfread(&result, sizeof( xtype ), 1, fh) != 1)  \
+        return FALSE;                                   \
+    *val = DM_ ## xmacro ## _TO_NATIVE (result);        \
+    return TRUE;                                        \
 }
 
 #include "dmfiletmpl.h"