int main ()
{
int ret;
ret = xz_decompress (stdin, stdout);
return ret;
}
int crPlayerLoadFile(void *context, const char *filename, unsigned char *data,
int size)
{
gmeContext *gme = (gmeContext*)context;
int i;
/* check if the data is compressed with XZ */
if ((data[0] == 0xFD) &&
(data[1] == '7') &&
(data[2] == 'z') &&
(data[3] == 'X') &&
(data[4] == 'Z'))
{
/* compressed with XZ-embedded; decompress */
if (!xz_decompress(data, size, &gme->dataBuffer, &gme->dataBufferSize))
{
free(gme->dataBuffer);
return 0;
}
}
else
{
/* not compressed; move to internal buffer */
gme->dataBufferSize = size;
gme->dataBuffer = (uint8_t*)malloc(gme->dataBufferSize);
if (!gme->dataBuffer)
return 0;
memcpy(gme->dataBuffer, data, gme->dataBufferSize);
}
/* check if this is a .gamemusic file */
if (strncmp((char *)gme->dataBuffer, "Game Music Files", 16) == 0)
{
/* it's a .gamemusic file; parse out a table of offsets and sizes */
gme->isGameMusicArchive = 1;
gme->trackCount =
(gme->dataBuffer[16] << 24) |
(gme->dataBuffer[17] << 16) |
(gme->dataBuffer[18] << 8) |
(gme->dataBuffer[19] << 0);
gme->entries = (fileEntry*)malloc(gme->trackCount * sizeof(fileEntry));
if (!gme->entries)
{
return 0;
}
/* gather up the offsets */
for (i = 0; i < gme->trackCount; i++)
{
gme->entries[i].offset =
(gme->dataBuffer[20 + i * 4 + 0] << 24) |
(gme->dataBuffer[20 + i * 4 + 1] << 16) |
(gme->dataBuffer[20 + i * 4 + 2] << 8) |
(gme->dataBuffer[20 + i * 4 + 3] << 0);
}
/* derive the sizes based on the offsets */
for (i = 0; i < gme->trackCount - 1; i++)
{
gme->entries[i].size =
gme->entries[i + 1].offset - gme->entries[i].offset;
}
/* last size takes data size into account */
gme->entries[gme->trackCount - 1].size =
gme->dataBufferSize - gme->entries[gme->trackCount - 1].offset;
}
return 1;
}
