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@ r9908:994583979bb3
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Location: cpp/openttd-patchpack/source/src/gfxinit.cpp
r9908:994583979bb3
7.2 KiB
text/x-c
(svn r14058) -Fix [FS#2224]: NewGRF callback 23 didn't use the NewGRF compatible text stack (minime)
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/** @file gfxinit.cpp Initializing of the (GRF) graphics. */
#include "stdafx.h"
#include "openttd.h"
#include "debug.h"
#include "gfxinit.h"
#include "spritecache.h"
#include "fileio.h"
#include "fios.h"
#include "newgrf.h"
#include "md5.h"
#include "variables.h"
#include "fontcache.h"
#include "gfx_func.h"
#include "core/alloc_func.hpp"
#include "core/bitmath_func.hpp"
#include <string.h>
#include "settings_type.h"
#include "table/sprites.h"
struct MD5File {
const char * filename; ///< filename
uint8 hash[16]; ///< md5 sum of the file
};
struct FileList {
MD5File basic[2]; ///< GRF files that always have to be loaded
MD5File landscape[3]; ///< Landscape specific grf files
MD5File sound; ///< Sound samples
MD5File openttd; ///< GRF File with OTTD specific graphics
};
#include "table/files.h"
#include "table/landscape_sprite.h"
static const SpriteID * const _landscape_spriteindexes[] = {
_landscape_spriteindexes_1,
_landscape_spriteindexes_2,
_landscape_spriteindexes_3,
};
static uint LoadGrfFile(const char *filename, uint load_index, int file_index)
{
uint load_index_org = load_index;
uint sprite_id = 0;
FioOpenFile(file_index, filename);
DEBUG(sprite, 2, "Reading grf-file '%s'", filename);
while (LoadNextSprite(load_index, file_index, sprite_id)) {
load_index++;
sprite_id++;
if (load_index >= MAX_SPRITES) {
usererror("Too many sprites. Recompile with higher MAX_SPRITES value or remove some custom GRF files.");
}
}
DEBUG(sprite, 2, "Currently %i sprites are loaded", load_index);
return load_index - load_index_org;
}
void LoadSpritesIndexed(int file_index, uint *sprite_id, const SpriteID *index_tbl)
{
uint start;
while ((start = *index_tbl++) != END) {
uint end = *index_tbl++;
do {
bool b = LoadNextSprite(start, file_index, *sprite_id);
assert(b);
(*sprite_id)++;
} while (++start <= end);
}
}
static void LoadGrfIndexed(const char* filename, const SpriteID* index_tbl, int file_index)
{
uint sprite_id = 0;
FioOpenFile(file_index, filename);
DEBUG(sprite, 2, "Reading indexed grf-file '%s'", filename);
LoadSpritesIndexed(file_index, &sprite_id, index_tbl);
}
/**
* Calculate and check the MD5 hash of the supplied filename.
* @param file filename and expected MD5 hash for the given filename.
* @return true if the checksum is correct.
*/
static bool FileMD5(const MD5File file)
{
size_t size;
FILE *f = FioFOpenFile(file.filename, "rb", DATA_DIR, &size);
if (f != NULL) {
Md5 checksum;
uint8 buffer[1024];
uint8 digest[16];
size_t len;
while ((len = fread(buffer, 1, (size > sizeof(buffer)) ? sizeof(buffer) : size, f)) != 0 && size != 0) {
size -= len;
checksum.Append(buffer, len);
}
FioFCloseFile(f);
checksum.Finish(digest);
return memcmp(file.hash, digest, sizeof(file.hash)) == 0;
} else { // file not found
return false;
}
}
/**
* Determine the palette that has to be used.
* - forced DOS palette via command line -> leave it that way
* - all Windows files present -> Windows palette
* - all DOS files present -> DOS palette
* - no Windows files present and any DOS file present -> DOS palette
* - otherwise -> Windows palette
*/
static void DeterminePalette()
{
if (_use_dos_palette) return;
/* Count of files from the different versions. */
uint dos = 0;
uint win = 0;
for (uint i = 0; i < lengthof(files_dos.basic); i++) if (FioCheckFileExists(files_dos.basic[i].filename)) dos++;
for (uint i = 0; i < lengthof(files_dos.landscape); i++) if (FioCheckFileExists(files_dos.landscape[i].filename)) dos++;
for (uint i = 0; i < lengthof(files_win.basic); i++) if (FioCheckFileExists(files_win.basic[i].filename)) win++;
for (uint i = 0; i < lengthof(files_win.landscape); i++) if (FioCheckFileExists(files_win.landscape[i].filename)) win++;
if (win == 5) {
_use_dos_palette = false;
} else if (dos == 5 || (win == 0 && dos > 0)) {
_use_dos_palette = true;
} else {
_use_dos_palette = false;
}
}
/**
* Checks whether the MD5 checksums of the files are correct.
*
* @note Also checks sample.cat and other required non-NewGRF GRFs for corruption.
*/
void CheckExternalFiles()
{
DeterminePalette();
static const size_t ERROR_MESSAGE_LENGTH = 128;
const FileList *files = _use_dos_palette ? &files_dos : &files_win;
char error_msg[ERROR_MESSAGE_LENGTH * (lengthof(files->basic) + lengthof(files->landscape) + 3)];
error_msg[0] = '\0';
char *add_pos = error_msg;
for (uint i = 0; i < lengthof(files->basic); i++) {
if (!FileMD5(files->basic[i])) {
add_pos += snprintf(add_pos, ERROR_MESSAGE_LENGTH, "Your '%s' file is corrupted or missing! You can find '%s' on your Transport Tycoon Deluxe CD-ROM.\n", files->basic[i].filename, files->basic[i].filename);
}
}
for (uint i = 0; i < lengthof(files->landscape); i++) {
if (!FileMD5(files->landscape[i])) {
add_pos += snprintf(add_pos, ERROR_MESSAGE_LENGTH, "Your '%s' file is corrupted or missing! You can find '%s' on your Transport Tycoon Deluxe CD-ROM.\n", files->landscape[i].filename, files->landscape[i].filename);
}
}
if (!FileMD5(files_win.sound) && !FileMD5(files_dos.sound)) {
add_pos += snprintf(add_pos, ERROR_MESSAGE_LENGTH, "Your 'sample.cat' file is corrupted or missing! You can find 'sample.cat' on your Transport Tycoon Deluxe CD-ROM.\n");
}
if (!FileMD5(files->openttd)) {
add_pos += snprintf(add_pos, ERROR_MESSAGE_LENGTH, "Your '%s' file is corrupted or missing! The file was part of your installation.\n", files->openttd.filename);
}
if (add_pos != error_msg) ShowInfoF(error_msg);
}
static void LoadSpriteTables()
{
const FileList *files = _use_dos_palette ? &files_dos : &files_win;
uint i = FIRST_GRF_SLOT;
LoadGrfFile(files->basic[0].filename, 0, i++);
/*
* The second basic file always starts at the given location and does
* contain a different amount of sprites depending on the "type"; DOS
* has a few sprites less. However, we do not care about those missing
* sprites as they are not shown anyway (logos in intro game).
*/
LoadGrfFile(files->basic[1].filename, 4793, i++);
/*
* Load additional sprites for climates other than temperate.
* This overwrites some of the temperate sprites, such as foundations
* and the ground sprites.
*/
if (_settings_game.game_creation.landscape != LT_TEMPERATE) {
LoadGrfIndexed(
files->landscape[_settings_game.game_creation.landscape - 1].filename,
_landscape_spriteindexes[_settings_game.game_creation.landscape - 1],
i++
);
}
/* Initialize the unicode to sprite mapping table */
InitializeUnicodeGlyphMap();
/*
* Load the base NewGRF with OTTD required graphics as first NewGRF.
* However, we do not want it to show up in the list of used NewGRFs,
* so we have to manually add it, and then remove it later.
*/
GRFConfig *top = _grfconfig;
GRFConfig *master = CallocT<GRFConfig>(1);
master->filename = strdup(files->openttd.filename);
FillGRFDetails(master, false);
ClrBit(master->flags, GCF_INIT_ONLY);
master->next = top;
_grfconfig = master;
LoadNewGRF(SPR_NEWGRFS_BASE, i);
/* Free and remove the top element. */
ClearGRFConfig(&master);
_grfconfig = top;
}
void GfxLoadSprites()
{
DEBUG(sprite, 2, "Loading sprite set %d", _settings_game.game_creation.landscape);
GfxInitSpriteMem();
LoadSpriteTables();
GfxInitPalettes();
}
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