thirdparty/scummvm
2
0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

SCI: Add support for the KQ5 FM Towns resource format

Browse source 
Thanks to alexbevi for providing details on the format
This commit is contained in:
Matthew Hoops 2011-02-15 21:47:29 -05:00
parent 84db0f60b0
commit 758e495872
4 changed files with 30 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

31
engines/sci/resource.cpp
View file

@ -38,6 +38,7 @@ namespace Sci {
enum {
SCI0_RESMAP_ENTRIES_SIZE = 6,
SCI1_RESMAP_ENTRIES_SIZE = 6,
KQ5FMT_RESMAP_ENTRIES_SIZE = 7,
SCI11_RESMAP_ENTRIES_SIZE = 5
};
@ -1115,6 +1116,8 @@ const char *ResourceManager::versionDescription(ResVersion version) const {
return "SCI0 / Early SCI1";
case kResVersionSci1Middle:
return "Middle SCI1";
case kResVersionKQ5FMT:
return "KQ5 FM Towns";
case kResVersionSci1Late:
return "Late SCI1";
case kResVersionSci11:
@ -1164,6 +1167,14 @@ ResVersion ResourceManager::detectMapVersion() {
fileStream->seek(-4, SEEK_END);
uint32 uEnd = fileStream->readUint32LE();
if (uEnd == 0xFFFFFFFF) {
// check if the last 7 bytes are all ff, indicating a KQ5 FM-Towns map
fileStream->seek(-7, SEEK_END);
fileStream->read(buff, 3);
if (buff[0] == 0xff && buff[1] == 0xff && buff[2] == 0xff) {
delete fileStream;
return kResVersionKQ5FMT;
}
// check if 0 or 01 - try to read resources in SCI0 format and see if exists
fileStream->seek(0, SEEK_SET);
while (fileStream->read(buff, 6) == 6 && !(buff[0] == 0xFF && buff[1] == 0xFF && buff[2] == 0xFF)) {
@ -1578,10 +1589,15 @@ int ResourceManager::readResourceMapSCI0(ResourceSource *map) {
fileStream->seek(0, SEEK_SET);
byte bMask = (_mapVersion == kResVersionSci1Middle) ? 0xF0 : 0xFC;
byte bShift = (_mapVersion == kResVersionSci1Middle) ? 28 : 26;
byte bMask = (_mapVersion >= kResVersionSci1Middle) ? 0xF0 : 0xFC;
byte bShift = (_mapVersion >= kResVersionSci1Middle) ? 28 : 26;
do {
// King's Quest 5 FM-Towns uses a 7 byte version of the SCI1 Middle map,
// splitting the type from the id.
if (_mapVersion == kResVersionKQ5FMT)
type = convertResType(fileStream->readByte());
id = fileStream->readUint16LE();
offset = fileStream->readUint32LE();
@ -1590,11 +1606,17 @@ int ResourceManager::readResourceMapSCI0(ResourceSource *map) {
warning("Error while reading %s", map->getLocationName().c_str());
return SCI_ERROR_RESMAP_NOT_FOUND;
}
if (offset == 0xFFFFFFFF)
break;
type = convertResType(id >> 11);
number = id & 0x7FF;
if (_mapVersion == kResVersionKQ5FMT) {
number = id;
} else {
type = convertResType(id >> 11);
number = id & 0x7FF;
}
ResourceId resId = ResourceId(type, number);
// adding a new resource
if (_resMap.contains(resId) == false) {
@ -2233,6 +2255,7 @@ void ResourceManager::detectSciVersion() {
s_sciVersion = SCI_VERSION_1_EARLY;
return;
case kResVersionSci1Middle:
case kResVersionKQ5FMT:
s_sciVersion = SCI_VERSION_1_MIDDLE;
return;
case kResVersionSci1Late: