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MOHAWK: Cleanup Riven save code

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This commit is contained in:
Matthew Hoops 2011-06-28 14:31:57 -04:00
parent ddd83da48b
commit 8cd81da14e
1 changed files with 50 additions and 39 deletions
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89
engines/mohawk/riven_saveload.cpp
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@ -274,7 +274,16 @@ Common::MemoryWriteStreamDynamic *RivenSaveLoad::genZIPSSection() {
}
bool RivenSaveLoad::saveGame(Common::String filename) {
// Note, this code is still WIP. It works quite well for now.
// NOTE: This code is designed to only output a Mohawk archive
// for a Riven saved game. It's hardcoded to do this because
// (as of right now) this is the only place in the engine
// that requires this feature. If the time comes when other
// games need this, we should think about coming up with some
// more common way of outputting resources to an archive.
// TODO: Make these saves work with the original interpreter.
// Not sure why they don't work yet (they still can be loaded
// by ScummVM).
// Make sure we have the right extension
if (!filename.matchString("*.rvn", true))
@ -296,99 +305,101 @@ bool RivenSaveLoad::saveGame(Common::String filename) {
Common::MemoryWriteStreamDynamic *zipsSection = genZIPSSection();
// Let's calculate the file size!
uint32 fileSize = 0;
uint32 fileSize = 142;
fileSize += versSection->size();
fileSize += nameSection->size();
fileSize += varsSection->size();
fileSize += zipsSection->size();
fileSize += 16; // RSRC Header
fileSize += 4; // Type Table Header
fileSize += 4 * 8; // Type Table Entries
fileSize += 2; // Pseudo-Name entries
// IFF Header
// MHWK Header (8 bytes - total: 8)
saveFile->writeUint32BE(ID_MHWK);
saveFile->writeUint32BE(fileSize);
saveFile->writeUint32BE(fileSize - 8);
// RSRC Header
// RSRC Header (20 bytes - total: 28)
saveFile->writeUint32BE(ID_RSRC);
saveFile->writeUint16BE(0x100); // Resource Version (1.0)
saveFile->writeUint16BE(0); // No compaction
saveFile->writeUint32BE(fileSize + 8); // Add on the 8 from the IFF header
saveFile->writeUint32BE(28); // IFF + RSRC
saveFile->writeUint16BE(62); // File Table Offset
saveFile->writeUint16BE(44); // 4 + 4 * 10
saveFile->writeUint16BE(1); // Compaction -- original saves have this too
saveFile->writeUint32BE(fileSize); // Subtract off the MHWK header size
saveFile->writeUint32BE(28); // Absolute offset: right after both headers
saveFile->writeUint16BE(70); // File Table Offset
saveFile->writeUint16BE(44); // File Table Size (4 bytes count + 4 entries * 10 bytes per entry)
//Type Table
saveFile->writeUint16BE(36); // After the Type Table Entries
// Type Table (4 bytes - total: 32)
saveFile->writeUint16BE(36); // String table offset After the Type Table Entries
saveFile->writeUint16BE(4); // 4 Type Table Entries
// Hardcode Entries
// Hardcode Entries (32 bytes - total: 64)
saveFile->writeUint32BE(ID_VERS);
saveFile->writeUint16BE(38);
saveFile->writeUint16BE(36);
saveFile->writeUint16BE(46); // Resource table offset
saveFile->writeUint16BE(38); // String table offset
saveFile->writeUint32BE(ID_NAME);
saveFile->writeUint16BE(44);
saveFile->writeUint16BE(36);
saveFile->writeUint16BE(52);
saveFile->writeUint16BE(40);
saveFile->writeUint32BE(ID_VARS);
saveFile->writeUint16BE(50);
saveFile->writeUint16BE(36);
saveFile->writeUint16BE(58);
saveFile->writeUint16BE(42);
saveFile->writeUint32BE(ID_ZIPS);
saveFile->writeUint16BE(56);
saveFile->writeUint16BE(36);
saveFile->writeUint16BE(64);
saveFile->writeUint16BE(44);
// Pseudo-Name Table/Name List
// Pseudo-String Table (2 bytes - total: 66)
saveFile->writeUint16BE(0); // We don't need a name list
// VERS Section (Resource Table)
// Psuedo-Name Tables (8 bytes - total: 74)
saveFile->writeUint16BE(0);
saveFile->writeUint16BE(0);
saveFile->writeUint16BE(0);
saveFile->writeUint16BE(0);
// VERS Section (Resource Table) (6 bytes - total: 80)
saveFile->writeUint16BE(1);
saveFile->writeUint16BE(1);
saveFile->writeUint16BE(1);
// NAME Section (Resource Table)
// NAME Section (Resource Table) (6 bytes - total: 86)
saveFile->writeUint16BE(1);
saveFile->writeUint16BE(1);
saveFile->writeUint16BE(2);
// VARS Section (Resource Table)
// VARS Section (Resource Table) (6 bytes - total: 92)
saveFile->writeUint16BE(1);
saveFile->writeUint16BE(1);
saveFile->writeUint16BE(3);
// ZIPS Section (Resource Table)
// ZIPS Section (Resource Table) (6 bytes - total: 98)
saveFile->writeUint16BE(1);
saveFile->writeUint16BE(1);
saveFile->writeUint16BE(4);
// File Table
// File Table (4 bytes - total: 102)
saveFile->writeUint32BE(4);
// VERS Section (File Table)
saveFile->writeUint32BE(134);
// VERS Section (File Table) (10 bytes - total: 112)
saveFile->writeUint32BE(142);
saveFile->writeUint16BE(versSection->size() & 0xFFFF);
saveFile->writeByte((versSection->size() & 0xFF0000) >> 16);
saveFile->writeByte(0);
saveFile->writeUint16BE(0);
// NAME Section (File Table)
saveFile->writeUint32BE(134 + versSection->size());
// NAME Section (File Table) (10 bytes - total: 122)
saveFile->writeUint32BE(142 + versSection->size());
saveFile->writeUint16BE(nameSection->size() & 0xFFFF);
saveFile->writeByte((nameSection->size() & 0xFF0000) >> 16);
saveFile->writeByte(0);
saveFile->writeUint16BE(0);
// VARS Section (File Table)
saveFile->writeUint32BE(134 + versSection->size() + nameSection->size());
// VARS Section (File Table) (10 bytes - total: 132)
saveFile->writeUint32BE(142 + versSection->size() + nameSection->size());
saveFile->writeUint16BE(varsSection->size() & 0xFFFF);
saveFile->writeByte((varsSection->size() & 0xFF0000) >> 16);
saveFile->writeByte(0);
saveFile->writeUint16BE(0);
// ZIPS Section (File Table)
saveFile->writeUint32BE(134 + versSection->size() + nameSection->size() + varsSection->size());
// ZIPS Section (File Table) (10 bytes - total: 142)
saveFile->writeUint32BE(142 + versSection->size() + nameSection->size() + varsSection->size());
saveFile->writeUint16BE(zipsSection->size() & 0xFFFF);
saveFile->writeByte((zipsSection->size() & 0xFF0000) >> 16);
saveFile->writeByte(0);