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| author | md5 | 2011-02-22 01:51:50 +0200 |
|---|---|---|
| committer | md5 | 2011-02-22 01:51:50 +0200 |
| commit | ff597ec048fe4383b5f3f5ac3d235bbac9f0c8e2 (patch) | |
| tree | 1230411276887473ede6d4be75e8615d71bfefce /engines/sci/sci.cpp | |
| parent | 0ec91de76df9fbe452bc62775d337114179b2fe0 (diff) | |
| download | scummvm-rg350-ff597ec048fe4383b5f3f5ac3d235bbac9f0c8e2.tar.gz scummvm-rg350-ff597ec048fe4383b5f3f5ac3d235bbac9f0c8e2.tar.bz2 scummvm-rg350-ff597ec048fe4383b5f3f5ac3d235bbac9f0c8e2.zip | |
SCI: Added support for patching save/load dialogs in SCI2 games
Diffstat (limited to 'engines/sci/sci.cpp')
| -rw-r--r-- | engines/sci/sci.cpp | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/engines/sci/sci.cpp b/engines/sci/sci.cpp index 7147b17b82..b8a04066ac 100644 --- a/engines/sci/sci.cpp +++ b/engines/sci/sci.cpp @@ -427,7 +427,17 @@ static byte patchGameRestoreSave[] = { 0x76, // push0 0x38, 0xff, 0xff, // pushi -1 0x76, // push0 - 0x43, 0xff, 0x06, // call kRestoreGame/kSaveGame (will get fixed directly) + 0x43, 0xff, 0x06, // callk kRestoreGame/kSaveGame (will get fixed directly) + 0x48, // ret +}; + +// SCI2 version: Same as above, but the second parameter to callk is a word +static byte patchGameRestoreSaveSci2[] = { + 0x39, 0x03, // pushi 03 + 0x76, // push0 + 0x38, 0xff, 0xff, // pushi -1 + 0x76, // push0 + 0x43, 0xff, 0x06, 0x00, // callk kRestoreGame/kSaveGame (will get fixed directly) 0x48, // ret }; @@ -446,8 +456,8 @@ void SciEngine::patchGameSaveRestore() { const byte *scriptSavePtr = NULL; byte kernelIdSave = 0; - // this feature is currently not supported on SCI32 - if (getSciVersion() >= SCI_VERSION_2) + // This feature is currently not supported in SCI21 or SCI3 + if (getSciVersion() >= SCI_VERSION_2_1) return; switch (_gameId) { @@ -509,13 +519,21 @@ void SciEngine::patchGameSaveRestore() { if (scriptRestorePtr) { // Now patch in our code byte *patchPtr = const_cast<byte *>(scriptRestorePtr); - memcpy(patchPtr, patchGameRestoreSave, sizeof(patchGameRestoreSave)); + if (getSciVersion() <= SCI_VERSION_1_1) + memcpy(patchPtr, patchGameRestoreSave, sizeof(patchGameRestoreSave)); + else if (getSciVersion() == SCI_VERSION_2) + memcpy(patchPtr, patchGameRestoreSaveSci2, sizeof(patchGameRestoreSaveSci2)); + // TODO: SCI21/SCI3 patchPtr[8] = kernelIdRestore; } if (scriptSavePtr) { // Now patch in our code byte *patchPtr = const_cast<byte *>(scriptSavePtr); - memcpy(patchPtr, patchGameRestoreSave, sizeof(patchGameRestoreSave)); + if (getSciVersion() <= SCI_VERSION_1_1) + memcpy(patchPtr, patchGameRestoreSave, sizeof(patchGameRestoreSave)); + else if (getSciVersion() == SCI_VERSION_2) + memcpy(patchPtr, patchGameRestoreSaveSci2, sizeof(patchGameRestoreSaveSci2)); + // TODO: SCI21/SCI3 patchPtr[8] = kernelIdSave; } } |