summaryrefslogtreecommitdiff
path: root/src/tool/mapcache.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/tool/mapcache.c')
-rw-r--r--src/tool/mapcache.c484
1 files changed, 242 insertions, 242 deletions
diff --git a/src/tool/mapcache.c b/src/tool/mapcache.c
index 49f948709..0e8d4dd88 100644
--- a/src/tool/mapcache.c
+++ b/src/tool/mapcache.c
@@ -30,23 +30,23 @@ unsigned long file_size;
// Used internally, this structure contains the physical map cells
struct map_data {
- int16 xs;
- int16 ys;
- unsigned char *cells;
+ int16 xs;
+ int16 ys;
+ unsigned char *cells;
};
// This is the main header found at the very beginning of the file
struct main_header {
- uint32 file_size;
- uint16 map_count;
+ uint32 file_size;
+ uint16 map_count;
} header;
// This is the header appended before every compressed map cells info
struct map_info {
- char name[MAP_NAME_LENGTH];
- int16 xs;
- int16 ys;
- int32 len;
+ char name[MAP_NAME_LENGTH];
+ int16 xs;
+ int16 ys;
+ int32 len;
};
@@ -57,297 +57,297 @@ struct map_info {
// Converts an int16 from current machine order to little-endian
int16 MakeShortLE(int16 val)
{
- unsigned char buf[2];
- buf[0] = (unsigned char)( (val & 0x00FF) );
- buf[1] = (unsigned char)( (val & 0xFF00) >> 0x08 );
- return *((int16*)buf);
+ unsigned char buf[2];
+ buf[0] = (unsigned char)((val & 0x00FF));
+ buf[1] = (unsigned char)((val & 0xFF00) >> 0x08);
+ return *((int16 *)buf);
}
// Converts an int32 from current machine order to little-endian
int32 MakeLongLE(int32 val)
{
- unsigned char buf[4];
- buf[0] = (unsigned char)( (val & 0x000000FF) );
- buf[1] = (unsigned char)( (val & 0x0000FF00) >> 0x08 );
- buf[2] = (unsigned char)( (val & 0x00FF0000) >> 0x10 );
- buf[3] = (unsigned char)( (val & 0xFF000000) >> 0x18 );
- return *((int32*)buf);
+ unsigned char buf[4];
+ buf[0] = (unsigned char)((val & 0x000000FF));
+ buf[1] = (unsigned char)((val & 0x0000FF00) >> 0x08);
+ buf[2] = (unsigned char)((val & 0x00FF0000) >> 0x10);
+ buf[3] = (unsigned char)((val & 0xFF000000) >> 0x18);
+ return *((int32 *)buf);
}
// Reads an uint16 in little-endian from the buffer
-uint16 GetUShort(const unsigned char* buf)
+uint16 GetUShort(const unsigned char *buf)
{
- return ( ((uint16)(buf[0])) )
- |( ((uint16)(buf[1])) << 0x08 );
+ return (((uint16)(buf[0])))
+ |(((uint16)(buf[1])) << 0x08);
}
// Reads an uint32 in little-endian from the buffer
-uint32 GetULong(const unsigned char* buf)
+uint32 GetULong(const unsigned char *buf)
{
- return ( ((uint32)(buf[0])) )
- |( ((uint32)(buf[1])) << 0x08 )
- |( ((uint32)(buf[2])) << 0x10 )
- |( ((uint32)(buf[3])) << 0x18 );
+ return (((uint32)(buf[0])))
+ |(((uint32)(buf[1])) << 0x08)
+ |(((uint32)(buf[2])) << 0x10)
+ |(((uint32)(buf[3])) << 0x18);
}
// Reads an int32 in little-endian from the buffer
-int32 GetLong(const unsigned char* buf)
+int32 GetLong(const unsigned char *buf)
{
- return (int32)GetULong(buf);
+ return (int32)GetULong(buf);
}
// Reads a float (32 bits) from the buffer
-float GetFloat(const unsigned char* buf)
+float GetFloat(const unsigned char *buf)
{
- uint32 val = GetULong(buf);
- return *((float*)(void*)&val);
+ uint32 val = GetULong(buf);
+ return *((float *)(void *)&val);
}
// Reads a map from GRF's GAT and RSW files
int read_map(char *name, struct map_data *m)
{
- char filename[256];
- unsigned char *gat, *rsw;
- int water_height;
- size_t xy, off, num_cells;
- float height;
- uint32 type;
-
- // Open map GAT
- sprintf(filename,"data\\%s.gat", name);
- gat = (unsigned char *)grfio_read(filename);
- if (gat == NULL)
- return 0;
-
- // Open map RSW
- sprintf(filename,"data\\%s.rsw", name);
- rsw = (unsigned char *)grfio_read(filename);
-
- // Read water height
- if (rsw) {
- water_height = (int)GetFloat(rsw+166);
- aFree(rsw);
- } else
- water_height = NO_WATER;
-
- // Read map size and allocate needed memory
- m->xs = (int16)GetULong(gat+6);
- m->ys = (int16)GetULong(gat+10);
- if (m->xs <= 0 || m->ys <= 0) {
- aFree(gat);
- return 0;
- }
- num_cells = (size_t)m->xs*(size_t)m->ys;
- m->cells = (unsigned char *)aMalloc(num_cells);
-
- // Set cell properties
- off = 14;
- for (xy = 0; xy < num_cells; xy++)
- {
- // Height of the bottom-left corner
- height = GetFloat( gat + off );
- // Type of cell
- type = GetULong( gat + off + 16 );
- off += 20;
-
- if (type == 0 && water_height != NO_WATER && height > water_height)
- type = 3; // Cell is 0 (walkable) but under water level, set to 3 (walkable water)
-
- m->cells[xy] = (unsigned char)type;
- }
-
- aFree(gat);
-
- return 1;
+ char filename[256];
+ unsigned char *gat, *rsw;
+ int water_height;
+ size_t xy, off, num_cells;
+ float height;
+ uint32 type;
+
+ // Open map GAT
+ sprintf(filename,"data\\%s.gat", name);
+ gat = (unsigned char *)grfio_read(filename);
+ if (gat == NULL)
+ return 0;
+
+ // Open map RSW
+ sprintf(filename,"data\\%s.rsw", name);
+ rsw = (unsigned char *)grfio_read(filename);
+
+ // Read water height
+ if (rsw) {
+ water_height = (int)GetFloat(rsw+166);
+ aFree(rsw);
+ } else
+ water_height = NO_WATER;
+
+ // Read map size and allocate needed memory
+ m->xs = (int16)GetULong(gat+6);
+ m->ys = (int16)GetULong(gat+10);
+ if (m->xs <= 0 || m->ys <= 0) {
+ aFree(gat);
+ return 0;
+ }
+ num_cells = (size_t)m->xs*(size_t)m->ys;
+ m->cells = (unsigned char *)aMalloc(num_cells);
+
+ // Set cell properties
+ off = 14;
+ for (xy = 0; xy < num_cells; xy++) {
+ // Height of the bottom-left corner
+ height = GetFloat(gat + off);
+ // Type of cell
+ type = GetULong(gat + off + 16);
+ off += 20;
+
+ if (type == 0 && water_height != NO_WATER && height > water_height)
+ type = 3; // Cell is 0 (walkable) but under water level, set to 3 (walkable water)
+
+ m->cells[xy] = (unsigned char)type;
+ }
+
+ aFree(gat);
+
+ return 1;
}
// Adds a map to the cache
void cache_map(char *name, struct map_data *m)
{
- struct map_info info;
- unsigned long len;
- unsigned char *write_buf;
-
- // Create an output buffer twice as big as the uncompressed map... this way we're sure it fits
- 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);
-
- // Fill the map header
- if (strlen(name) > MAP_NAME_LENGTH) // It does not hurt to warn that there are maps with name longer than allowed.
- ShowWarning ("Map name '%s' size '%d' is too long. Truncating to '%d'.\n", name, strlen(name), MAP_NAME_LENGTH);
- strncpy(info.name, name, MAP_NAME_LENGTH);
- info.xs = MakeShortLE(m->xs);
- info.ys = MakeShortLE(m->ys);
- info.len = MakeLongLE(len);
-
- // Append map header then compressed cells at the end of the file
- fseek(map_cache_fp, header.file_size, SEEK_SET);
- fwrite(&info, sizeof(struct map_info), 1, map_cache_fp);
- fwrite(write_buf, 1, len, map_cache_fp);
- header.file_size += sizeof(struct map_info) + len;
- header.map_count++;
-
- aFree(write_buf);
- aFree(m->cells);
-
- return;
+ struct map_info info;
+ unsigned long len;
+ unsigned char *write_buf;
+
+ // Create an output buffer twice as big as the uncompressed map... this way we're sure it fits
+ 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);
+
+ // Fill the map header
+ if (strlen(name) > MAP_NAME_LENGTH) // It does not hurt to warn that there are maps with name longer than allowed.
+ ShowWarning("Map name '%s' size '%d' is too long. Truncating to '%d'.\n", name, strlen(name), MAP_NAME_LENGTH);
+ strncpy(info.name, name, MAP_NAME_LENGTH);
+ info.xs = MakeShortLE(m->xs);
+ info.ys = MakeShortLE(m->ys);
+ info.len = MakeLongLE(len);
+
+ // Append map header then compressed cells at the end of the file
+ fseek(map_cache_fp, header.file_size, SEEK_SET);
+ fwrite(&info, sizeof(struct map_info), 1, map_cache_fp);
+ fwrite(write_buf, 1, len, map_cache_fp);
+ header.file_size += sizeof(struct map_info) + len;
+ header.map_count++;
+
+ aFree(write_buf);
+ aFree(m->cells);
+
+ return;
}
// Checks whether a map is already is the cache
int find_map(char *name)
{
- int i;
- struct map_info info;
+ int i;
+ struct map_info info;
- fseek(map_cache_fp, sizeof(struct main_header), SEEK_SET);
+ fseek(map_cache_fp, sizeof(struct main_header), SEEK_SET);
- for(i = 0; i < header.map_count; i++) {
- if(fread(&info, sizeof(info), 1, map_cache_fp) != 1) printf("An error as occured in fread while reading map_cache\n");
- if(strcmp(name, info.name) == 0) // Map found
- return 1;
- else // Map not found, jump to the beginning of the next map info header
- fseek(map_cache_fp, GetLong((unsigned char *)&(info.len)), SEEK_CUR);
- }
+ for (i = 0; i < header.map_count; i++) {
+ if (fread(&info, sizeof(info), 1, map_cache_fp) != 1) printf("An error as occured in fread while reading map_cache\n");
+ if (strcmp(name, info.name) == 0) // Map found
+ return 1;
+ else // Map not found, jump to the beginning of the next map info header
+ fseek(map_cache_fp, GetLong((unsigned char *)&(info.len)), SEEK_CUR);
+ }
- return 0;
+ return 0;
}
// Cuts the extension from a map name
char *remove_extension(char *mapname)
{
- char *ptr, *ptr2;
- ptr = strchr(mapname, '.');
- if (ptr) { //Check and remove extension.
- while (ptr[1] && (ptr2 = strchr(ptr+1, '.')))
- ptr = ptr2; //Skip to the last dot.
- if (strcmp(ptr,".gat") == 0)
- *ptr = '\0'; //Remove extension.
- }
- return mapname;
+ char *ptr, *ptr2;
+ ptr = strchr(mapname, '.');
+ if (ptr) { //Check and remove extension.
+ while (ptr[1] && (ptr2 = strchr(ptr+1, '.')))
+ ptr = ptr2; //Skip to the last dot.
+ if (strcmp(ptr,".gat") == 0)
+ *ptr = '\0'; //Remove extension.
+ }
+ return mapname;
}
// Processes command-line arguments
void process_args(int argc, char *argv[])
{
- int i;
-
- for(i = 0; i < argc; i++) {
- if(strcmp(argv[i], "-grf") == 0) {
- if(++i < argc)
- strcpy(grf_list_file, argv[i]);
- } else if(strcmp(argv[i], "-list") == 0) {
- if(++i < argc)
- strcpy(map_list_file, argv[i]);
- } else if(strcmp(argv[i], "-cache") == 0) {
- if(++i < argc)
- strcpy(map_cache_file, argv[i]);
- } else if(strcmp(argv[i], "-rebuild") == 0)
- rebuild = 1;
- }
+ int i;
+
+ for (i = 0; i < argc; i++) {
+ if (strcmp(argv[i], "-grf") == 0) {
+ if (++i < argc)
+ strcpy(grf_list_file, argv[i]);
+ } else if (strcmp(argv[i], "-list") == 0) {
+ if (++i < argc)
+ strcpy(map_list_file, argv[i]);
+ } else if (strcmp(argv[i], "-cache") == 0) {
+ if (++i < argc)
+ strcpy(map_cache_file, argv[i]);
+ } else if (strcmp(argv[i], "-rebuild") == 0)
+ rebuild = 1;
+ }
}
-int do_init(int argc, char** argv)
+int do_init(int argc, char **argv)
{
- FILE *list;
- char line[1024];
- struct map_data map;
- char name[MAP_NAME_LENGTH_EXT];
+ FILE *list;
+ char line[1024];
+ struct map_data map;
+ char name[MAP_NAME_LENGTH_EXT];
- /* setup pre-defined, #define-dependant */
- sprintf(map_cache_file,"db/%s/map_cache.dat",
+ /* setup pre-defined, #define-dependant */
+ sprintf(map_cache_file,"db/%s/map_cache.dat",
#ifdef RENEWAL
- "re"
+ "re"
#else
- "pre-re"
+ "pre-re"
#endif
- );
-
- // Process the command-line arguments
- process_args(argc, argv);
-
- ShowStatus("Initializing grfio with %s\n", 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);
- if(!rebuild) {
- map_cache_fp = fopen(map_cache_file, "rb");
- if(map_cache_fp == NULL) {
- ShowNotice("Existing map cache not found, forcing rebuild mode\n");
- rebuild = 1;
- } else
- fclose(map_cache_fp);
- }
- if(rebuild)
- map_cache_fp = fopen(map_cache_file, "w+b");
- else
- map_cache_fp = fopen(map_cache_file, "r+b");
- if(map_cache_fp == NULL) {
- ShowError("Failure when opening map cache file %s\n", map_cache_file);
- exit(EXIT_FAILURE);
- }
-
- // Open the map list
- ShowStatus("Opening map list: %s\n", map_list_file);
- list = fopen(map_list_file, "r");
- if(list == NULL) {
- ShowError("Failure when opening maps list file %s\n", map_list_file);
- exit(EXIT_FAILURE);
- }
-
- // Initialize the main header
- if(rebuild) {
- header.file_size = sizeof(struct main_header);
- header.map_count = 0;
- } else {
- if(fread(&header, sizeof(struct main_header), 1, map_cache_fp) != 1){ printf("An error as occured while reading map_cache_fp \n"); }
- header.file_size = GetULong((unsigned char *)&(header.file_size));
- header.map_count = GetUShort((unsigned char *)&(header.map_count));
- }
-
- // Read and process the map list
- while(fgets(line, sizeof(line), list))
- {
- if(line[0] == '/' && line[1] == '/')
- continue;
-
- if(sscanf(line, "%15s", name) < 1)
- continue;
-
- if(strcmp("map:", name) == 0 && sscanf(line, "%*s %15s", name) < 1)
- continue;
-
- name[MAP_NAME_LENGTH_EXT-1] = '\0';
- remove_extension(name);
- if(find_map(name))
- ShowInfo("Map '"CL_WHITE"%s"CL_RESET"' already in cache.\n", name);
- else if(read_map(name, &map)) {
- cache_map(name, &map);
- ShowInfo("Map '"CL_WHITE"%s"CL_RESET"' successfully cached.\n", name);
- } else
- ShowError("Map '"CL_WHITE"%s"CL_RESET"' not found!\n", name);
-
- }
-
- ShowStatus("Closing map list: %s\n", map_list_file);
- fclose(list);
-
- // Write the main header and close the map cache
- ShowStatus("Closing map cache: %s\n", map_cache_file);
- fseek(map_cache_fp, 0, SEEK_SET);
- fwrite(&header, sizeof(struct main_header), 1, map_cache_fp);
- fclose(map_cache_fp);
-
- ShowStatus("Finalizing grfio\n");
- grfio_final();
-
- ShowInfo("%d maps now in cache\n", header.map_count);
-
- return 0;
+ );
+
+ // Process the command-line arguments
+ process_args(argc, argv);
+
+ ShowStatus("Initializing grfio with %s\n", 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);
+ if (!rebuild) {
+ map_cache_fp = fopen(map_cache_file, "rb");
+ if (map_cache_fp == NULL) {
+ ShowNotice("Existing map cache not found, forcing rebuild mode\n");
+ rebuild = 1;
+ } else
+ fclose(map_cache_fp);
+ }
+ if (rebuild)
+ map_cache_fp = fopen(map_cache_file, "w+b");
+ else
+ map_cache_fp = fopen(map_cache_file, "r+b");
+ if (map_cache_fp == NULL) {
+ ShowError("Failure when opening map cache file %s\n", map_cache_file);
+ exit(EXIT_FAILURE);
+ }
+
+ // Open the map list
+ ShowStatus("Opening map list: %s\n", map_list_file);
+ list = fopen(map_list_file, "r");
+ if (list == NULL) {
+ ShowError("Failure when opening maps list file %s\n", map_list_file);
+ exit(EXIT_FAILURE);
+ }
+
+ // Initialize the main header
+ if (rebuild) {
+ header.file_size = sizeof(struct main_header);
+ header.map_count = 0;
+ } else {
+ if (fread(&header, sizeof(struct main_header), 1, map_cache_fp) != 1) {
+ printf("An error as occured while reading map_cache_fp \n");
+ }
+ header.file_size = GetULong((unsigned char *)&(header.file_size));
+ header.map_count = GetUShort((unsigned char *)&(header.map_count));
+ }
+
+ // Read and process the map list
+ while (fgets(line, sizeof(line), list)) {
+ if (line[0] == '/' && line[1] == '/')
+ continue;
+
+ if (sscanf(line, "%15s", name) < 1)
+ continue;
+
+ if (strcmp("map:", name) == 0 && sscanf(line, "%*s %15s", name) < 1)
+ continue;
+
+ name[MAP_NAME_LENGTH_EXT-1] = '\0';
+ remove_extension(name);
+ if (find_map(name))
+ ShowInfo("Map '"CL_WHITE"%s"CL_RESET"' already in cache.\n", name);
+ else if (read_map(name, &map)) {
+ cache_map(name, &map);
+ ShowInfo("Map '"CL_WHITE"%s"CL_RESET"' successfully cached.\n", name);
+ } else
+ ShowError("Map '"CL_WHITE"%s"CL_RESET"' not found!\n", name);
+
+ }
+
+ ShowStatus("Closing map list: %s\n", map_list_file);
+ fclose(list);
+
+ // Write the main header and close the map cache
+ ShowStatus("Closing map cache: %s\n", map_cache_file);
+ fseek(map_cache_fp, 0, SEEK_SET);
+ fwrite(&header, sizeof(struct main_header), 1, map_cache_fp);
+ fclose(map_cache_fp);
+
+ ShowStatus("Finalizing grfio\n");
+ grfio_final();
+
+ ShowInfo("%d maps now in cache\n", header.map_count);
+
+ return 0;
}
void do_final(void)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-02 00:23:12 +0000