Interface grfio.c

7 files changed, 57 insertions, 30 deletions

diff --git a/src/common/core.c b/src/common/core.c
index 508a728f0..63123dfea 100644
--- a/src/common/core.c
+++ b/src/common/core.c
@@ -27,6 +27,7 @@
 #include "common/console.h"
 #include "common/db.h"
 #include "common/des.h"
+#include "common/grfio.h"
 #include "common/memmgr.h"
 #include "common/mmo.h"
 #include "common/nullpo.h"
@@ -257,6 +258,7 @@ void core_defaults(void) {
 	showmsg_defaults();
 	cmdline_defaults();
 	des_defaults();
+	grfio_defaults(); // Note: grfio is lazily loaded. grfio->init() and grfio->final() are not automatically called.
 #ifndef MINICORE
 	mutex_defaults();
 	libconfig_defaults();
diff --git a/src/common/grfio.c b/src/common/grfio.c
index 7f860acc6..fdd599ae7 100644
--- a/src/common/grfio.c
+++ b/src/common/grfio.c
@@ -2,7 +2,7 @@
  * This file is part of Hercules.
  * http://herc.ws - http://github.com/HerculesWS/Hercules
  *
- * Copyright (C) 2012-2015  Hercules Dev Team
+ * Copyright (C) 2012-2016  Hercules Dev Team
  * Copyright (C)  Athena Dev Teams
  *
  * Hercules is free software: you can redistribute it and/or modify
@@ -76,6 +76,9 @@ int gentry_maxentry = 0;
 // the path to the data directory
 char data_dir[1024] = "";
 
+struct grfio_interface grfio_s;
+struct grfio_interface *grfio;
+
 // little endian char array to uint conversion
 static unsigned int getlong(unsigned char* p)
 {
@@ -472,7 +475,7 @@ void *grfio_reads(const char *fname, int *size)
 				uLongf len;
 				grf_decode(buf, fsize, entry->type, entry->srclen);
 				len = entry->declen;
-				decode_zip(buf2, &len, buf, entry->srclen);
+				grfio->decode_zip(buf2, &len, buf, entry->srclen);
 				if (len != (uLong)entry->declen) {
 					ShowError("decode_zip size mismatch err: %d != %d\n", (int)len, entry->declen);
 					aFree(buf);
@@ -639,7 +642,7 @@ static int grfio_entryread(const char *grfname, int gentry)
 		}
 		fclose(fp);
 		grf_filelist = (unsigned char *)aMalloc(eSize); // Get a Extend Size
-		decode_zip(grf_filelist, &eSize, rBuf, rSize); // Decode function
+		grfio->decode_zip(grf_filelist, &eSize, rBuf, rSize); // Decode function
 		aFree(rBuf);
 
 		entrys = getlong(grf_header+0x26) - 7;
@@ -759,7 +762,7 @@ static void grfio_resourcecheck(void)
 	}
 
 	// read resnametable from loaded GRF's, only if it cannot be loaded from the data directory
-	buf = (char *)grfio_reads("data\\resnametable.txt", &size);
+	buf = grfio->reads("data\\resnametable.txt", &size);
 	if( buf != NULL )
 	{
 		char *ptr;
@@ -871,3 +874,15 @@ void grfio_init(const char* fname)
 	// Resource check
 	grfio_resourcecheck();
 }
+
+void grfio_defaults(void)
+{
+	grfio = &grfio_s;
+	grfio->init = grfio_init;
+	grfio->final = grfio_final;
+	grfio->reads = grfio_reads;
+	grfio->find_file = grfio_find_file;
+	grfio->crc32 = grfio_crc32;
+	grfio->decode_zip = decode_zip;
+	grfio->encode_zip = encode_zip;
+}
diff --git a/src/common/grfio.h b/src/common/grfio.h
index 36ed8fb39..72afad274 100644
--- a/src/common/grfio.h
+++ b/src/common/grfio.h
@@ -2,7 +2,7 @@
  * This file is part of Hercules.
  * http://herc.ws - http://github.com/HerculesWS/Hercules
  *
- * Copyright (C) 2012-2015  Hercules Dev Team
+ * Copyright (C) 2012-2016  Hercules Dev Team
  * Copyright (C)  Athena Dev Teams
  *
  * Hercules is free software: you can redistribute it and/or modify
@@ -21,16 +21,24 @@
 #ifndef COMMON_GRFIO_H
 #define COMMON_GRFIO_H
 
-#ifdef HERCULES_CORE
-void grfio_init(const char* fname);
-void grfio_final(void);
-void* grfio_reads(const char* fname, int* size);
-char* grfio_find_file(const char* fname);
-#define grfio_read(fn) grfio_reads((fn), NULL)
+#include "common/hercules.h"
+
+struct grfio_interface {
+	void (*init) (const char *fname);
+	void (*final) (void);
+	void *(*reads) (const char *fname, int *size);
+	char *(*find_file) (const char *fname);
+
+	unsigned long (*crc32) (const unsigned char *buf, unsigned int len);
+	int (*decode_zip) (void *dest, unsigned long *destLen, const void *source, unsigned long sourceLen);
+	int (*encode_zip) (void *dest, unsigned long *destLen, const void *source, unsigned long sourceLen);
+};
 
-unsigned long grfio_crc32(const unsigned char *buf, unsigned int len);
-int decode_zip(void* dest, unsigned long* destLen, const void* source, unsigned long sourceLen);
-int encode_zip(void* dest, unsigned long* destLen, const void* source, unsigned long sourceLen);
+#define grfio_read(fn) grfio->reads((fn), NULL)
+
+#ifdef HERCULES_CORE
+void grfio_defaults(void);
 #endif // HERCULES_CORE
 
+HPShared struct grfio_interface *grfio;
 #endif /* COMMON_GRFIO_H */
diff --git a/src/map/clif.c b/src/map/clif.c
index 9619a7201..3069e95ad 100644
--- a/src/map/clif.c
+++ b/src/map/clif.c
@@ -2,7 +2,7 @@
  * This file is part of Hercules.
  * http://herc.ws - http://github.com/HerculesWS/Hercules
  *
- * Copyright (C) 2012-2015  Hercules Dev Team
+ * Copyright (C) 2012-2016  Hercules Dev Team
  * Copyright (C)  Athena Dev Teams
  *
  * Hercules is free software: you can redistribute it and/or modify
@@ -12878,7 +12878,8 @@ bool clif_validate_emblem(const uint8 *emblem, unsigned long emblem_len) {
 	int header = 0, bitmap = 0, offbits = 0, palettesize = 0;
 
 	nullpo_retr(false, emblem);
-	if( decode_zip(buf, &buf_len, emblem, emblem_len) != 0 || buf_len < BITMAPFILEHEADER_SIZE + BITMAPINFOHEADER_SIZE
+	if (grfio->decode_zip(buf, &buf_len, emblem, emblem_len) != 0
+	 || buf_len < BITMAPFILEHEADER_SIZE + BITMAPINFOHEADER_SIZE
 	 || RBUFW(buf,0) != 0x4d42 // BITMAPFILEHEADER.bfType (signature)
 	 || RBUFL(buf,2) != buf_len // BITMAPFILEHEADER.bfSize (file size)
 	 || RBUFL(buf,14) != BITMAPINFOHEADER_SIZE // BITMAPINFOHEADER.biSize (other headers are not supported)
diff --git a/src/map/map.c b/src/map/map.c
index 30c849ed1..491f6fb59 100644
--- a/src/map/map.c
+++ b/src/map/map.c
@@ -2,7 +2,7 @@
  * This file is part of Hercules.
  * http://herc.ws - http://github.com/HerculesWS/Hercules
  *
- * Copyright (C) 2012-2015  Hercules Dev Team
+ * Copyright (C) 2012-2016  Hercules Dev Team
  * Copyright (C)  Athena Dev Teams
  *
  * Hercules is free software: you can redistribute it and/or modify
@@ -2851,7 +2851,7 @@ void map_cellfromcache(struct map_data *m) {
 		size = (unsigned long)info->xs*(unsigned long)info->ys;
 
 		// TO-DO: Maybe handle the scenario, if the decoded buffer isn't the same size as expected? [Shinryo]
-		decode_zip(decode_buffer, &size, m->cellPos+sizeof(struct map_cache_map_info), info->len);
+		grfio->decode_zip(decode_buffer, &size, m->cellPos+sizeof(struct map_cache_map_info), info->len);
 		CREATE(m->cell, struct mapcell, size);
 
 		// Set cell properties
@@ -3585,11 +3585,11 @@ int map_waterheight(char* mapname)
 	//Look up for the rsw
 	snprintf(fn, sizeof(fn), "data\\%s.rsw", mapname);
 
-	if ( (found = grfio_find_file(fn)) )
+	if ((found = grfio->find_file(fn)))
 		safestrncpy(fn, found, sizeof(fn)); // replace with real name
 
 	// read & convert fn
-	rsw = (char *) grfio_read (fn);
+	rsw = grfio_read(fn);
 	if (rsw) {
 		//Load water height from file
 		int wh = (int) *(float*)(rsw+166);
@@ -3613,7 +3613,7 @@ int map_readgat (struct map_data* m)
 	nullpo_ret(m);
 	sprintf(filename, "data\\%s.gat", m->name);
 
-	gat = (uint8 *) grfio_read(filename);
+	gat = grfio_read(filename);
 	if (gat == NULL)
 		return 0;
 
@@ -5677,8 +5677,8 @@ int do_final(void) {
 	map->map_db->destroy(map->map_db, map->db_final);
 
 	mapindex->final();
-	if(map->enable_grf)
-		grfio_final();
+	if (map->enable_grf)
+		grfio->final();
 
 	db_destroy(map->id_db);
 	db_destroy(map->pc_db);
@@ -6122,8 +6122,8 @@ int do_init(int argc, char *argv[])
 		}
 	}
 
-	if(map->enable_grf)
-		grfio_init(map->GRF_PATH_FILENAME);
+	if (map->enable_grf)
+		grfio->init(map->GRF_PATH_FILENAME);
 
 	map->readallmaps();
 
diff --git a/src/plugins/HPMHooking.c b/src/plugins/HPMHooking.c
index 97a36f4ce..0b98ea99f 100644
--- a/src/plugins/HPMHooking.c
+++ b/src/plugins/HPMHooking.c
@@ -97,6 +97,7 @@
 #include "map/storage.h"
 #include "map/trade.h"
 #include "map/unit.h"
+#include "common/grfio.h"
 #include "common/mapindex.h"
 #else
 #define HPM_SERVER_TYPE SERVER_TYPE_UNKNOWN
diff --git a/src/tool/mapcache.c b/src/tool/mapcache.c
index 41dfcf022..7bb2f4465 100644
--- a/src/tool/mapcache.c
+++ b/src/tool/mapcache.c
@@ -77,13 +77,13 @@ int read_map(char *name, struct map_data *m)
 
 	// Open map GAT
 	sprintf(filename,"data\\%s.gat", name);
-	gat = (unsigned char *)grfio_read(filename);
+	gat = grfio_read(filename);
 	if (gat == NULL)
 		return 0;
 
 	// Open map RSW
 	sprintf(filename,"data\\%s.rsw", name);
-	rsw = (unsigned char *)grfio_read(filename);
+	rsw = grfio_read(filename);
 
 	// Read water height
 	if (rsw) {
@@ -139,7 +139,7 @@ bool cache_map(char *name, struct map_data *m)
 	len = (unsigned long)m->xs*(unsigned long)m->ys*2;
 	write_buf = (unsigned char *)aMalloc(len);
 	// Compress the cells and get the compressed length
-	encode_zip(write_buf, &len, m->cells, m->xs*m->ys);
+	grfio->encode_zip(write_buf, &len, m->cells, m->xs*m->ys);
 
 	// Fill the map header
 	safestrncpy(info.name, name, MAP_NAME_LENGTH);
@@ -286,7 +286,7 @@ int do_init(int argc, char** argv)
 	cmdline->exec(argc, argv, CMDLINE_OPT_NORMAL);
 
 	ShowStatus("Initializing grfio with %s\n", grf_list_file);
-	grfio_init(grf_list_file);
+	grfio->init(grf_list_file);
 
 	// Attempt to open the map cache file and force rebuild if not found
 	ShowStatus("Opening map cache: %s\n", map_cache_file);
@@ -360,7 +360,7 @@ int do_init(int argc, char** argv)
 	fclose(map_cache_fp);
 
 	ShowStatus("Finalizing grfio\n");
-	grfio_final();
+	grfio->final();
 
 	ShowInfo("%d maps now in cache\n", header.map_count);