/**
* Load an old fashioned GRF file to replace already loaded sprites.
* @param filename The name of the file to open.
* @param index_tlb The offsets of each of the sprites.
* @param file_index The Fio offset to load the file in.
* @return The number of loaded sprites.
*/
static void LoadGrfFileIndexed(const char *filename, const SpriteID *index_tbl, int file_index)
{
uint start;
uint sprite_id = 0;
FioOpenFile(file_index, filename, BASESET_DIR);
DEBUG(sprite, 2, "Reading indexed grf-file '%s'", filename);
byte container_ver = GetGRFContainerVersion();
if (container_ver == 0) usererror("Base grf '%s' is corrupt", filename);
ReadGRFSpriteOffsets(container_ver);
if (container_ver >= 2) {
/* Read compression. */
byte compression = FioReadByte();
if (compression != 0) usererror("Unsupported compression format");
}
while ((start = *index_tbl++) != END) {
uint end = *index_tbl++;
do {
bool b = LoadNextSprite(start, file_index, sprite_id, container_ver);
assert(b);
sprite_id++;
} while (++start <= end);
}
}
/**
* Load an old fashioned GRF file.
* @param filename The name of the file to open.
* @param load_index The offset of the first sprite.
* @param file_index The Fio offset to load the file in.
* @return The number of loaded sprites.
*/
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, BASESET_DIR);
DEBUG(sprite, 2, "Reading grf-file '%s'", filename);
byte container_ver = GetGRFContainerVersion();
if (container_ver == 0) usererror("Base grf '%s' is corrupt", filename);
ReadGRFSpriteOffsets(container_ver);
if (container_ver >= 2) {
/* Read compression. */
byte compression = FioReadByte();
if (compression != 0) usererror("Unsupported compression format");
}
while (LoadNextSprite(load_index, file_index, sprite_id, container_ver)) {
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;
}
static void FioRestoreFile(int slot)
{
/* Do we still have the file open, or should we reopen it? */
if (_fio.handles[slot] == NULL) {
DEBUG(misc, 6, "Restoring file '%s' in slot '%d' from disk", _fio.filenames[slot], slot);
FioOpenFile(slot, _fio.filenames[slot]);
}
_fio.usage_count[slot]++;
}
static bool OpenPNGFile(const char *filename, uint32 id, bool mask)
{
char png_file[MAX_PATH];
/* Add path separator after 'sprites' if not present */
const char *sep = (filename[0] == PATHSEPCHAR) ? "" : PATHSEP;
snprintf(png_file, sizeof(png_file), "sprites%s%s" PATHSEP "%d%s.png", sep, filename, id, mask ? "m" : "");
if (FioCheckFileExists(png_file)) {
FioOpenFile(PNG_SLOT, png_file);
return true;
}
/* TODO -- Add TAR support */
return false;
}
/**
* Load an old fashioned GRF file to replace already loaded sprites.
* @param filename The name of the file to open.
* @param index_tlb The offsets of each of the sprites.
* @param file_index The Fio offset to load the file in.
* @return The number of loaded sprites.
*/
static void LoadGrfFileIndexed(const char *filename, const SpriteID *index_tbl, int file_index)
{
uint start;
uint sprite_id = 0;
FioOpenFile(file_index, filename, BASESET_DIR);
DEBUG(sprite, 2, "Reading indexed grf-file '%s'", filename);
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);
}
}
/**
* Load an old fashioned GRF file.
* @param filename The name of the file to open.
* @param load_index The offset of the first sprite.
* @param file_index The Fio offset to load the file in.
* @return The number of loaded sprites.
*/
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, BASESET_DIR);
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;
}
static void OpenBankFile(const char *filename)
{
memset(_original_sounds, 0, sizeof(_original_sounds));
/* If there is no sound file (nosound set), don't load anything */
if (filename == NULL) return;
FioOpenFile(SOUND_SLOT, filename);
size_t pos = FioGetPos();
uint count = FioReadDword();
/* The new format has the highest bit always set */
bool new_format = HasBit(count, 31);
ClrBit(count, 31);
count /= 8;
/* Simple check for the correct number of original sounds. */
if (count != ORIGINAL_SAMPLE_COUNT) {
/* Corrupt sample data? Just leave the allocated memory as those tell
* there is no sound to play (size = 0 due to calloc). Not allocating
* the memory disables valid NewGRFs that replace sounds. */
DEBUG(misc, 6, "Incorrect number of sounds in '%s', ignoring.", filename);
return;
}
FioSeekTo(pos, SEEK_SET);
for (uint i = 0; i != ORIGINAL_SAMPLE_COUNT; i++) {
_original_sounds[i].file_slot = SOUND_SLOT;
_original_sounds[i].file_offset = GB(FioReadDword(), 0, 31) + pos;
_original_sounds[i].file_size = FioReadDword();
}
for (uint i = 0; i != ORIGINAL_SAMPLE_COUNT; i++) {
SoundEntry *sound = &_original_sounds[i];
char name[255];
FioSeekTo(sound->file_offset, SEEK_SET);
/* Check for special case, see else case */
FioReadBlock(name, FioReadByte()); // Read the name of the sound
if (new_format || strcmp(name, "Corrupt sound") != 0) {
FioSeekTo(12, SEEK_CUR); // Skip past RIFF header
/* Read riff tags */
for (;;) {
uint32 tag = FioReadDword();
uint32 size = FioReadDword();
if (tag == ' tmf') {
FioReadWord(); // wFormatTag
sound->channels = FioReadWord(); // wChannels
sound->rate = FioReadDword(); // samples per second
if (!new_format) sound->rate = 11025; // seems like all old samples should be played at this rate.
FioReadDword(); // avg bytes per second
FioReadWord(); // alignment
sound->bits_per_sample = FioReadByte(); // bits per sample
FioSeekTo(size - (2 + 2 + 4 + 4 + 2 + 1), SEEK_CUR);
} else if (tag == 'atad') {
sound->file_size = size;
sound->file_slot = SOUND_SLOT;
sound->file_offset = FioGetPos();
break;
} else {
sound->file_size = 0;
break;
}
}
} else {
/*
* Special case for the jackhammer sound
* (name in sample.cat is "Corrupt sound")
* It's no RIFF file, but raw PCM data
*/
sound->channels = 1;
sound->rate = 11025;
sound->bits_per_sample = 8;
sound->file_slot = SOUND_SLOT;
sound->file_offset = FioGetPos();
}
}
}