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SCI: Fixed bug #3092115 - "ECOQUEST2: Initial text not cleared during ecorder intro"

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svn-id: r54984
This commit is contained in:
Filippos Karapetis 2010-12-21 15:31:59 +00:00
parent 75649f8903
commit 3a14a7760e
2 changed files with 64 additions and 0 deletions
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62
engines/sci/engine/script_patches.cpp
View file

@ -231,9 +231,71 @@ const uint16 ecoquest2PatchEcorder[] = {
PATCH_END
};
// ===========================================================================
// Same patch as above for the ecorder introduction. Fixes bug #3092115.
// Two workarounds are needed for this patch in workarounds.cpp (when calling
// kGraphFillBoxAny and kGraphUpdateBox), as there isn't enough space to patch
// the function otherwise.
const byte ecoquest2SignatureEcorderTutorial[] = {
36,
0x30, 0x23, 0x00, // bnt [next state]
0x39, 0x0a, // pushi 0a
0x5b, 0x04, 0x1f, // lea temp[1f]
0x36, // push
0x39, 0x64, // pushi 64
0x39, 0x7d, // pushi 7d
0x39, 0x32, // pushi 32
0x39, 0x66, // pushi 66
0x39, 0x17, // pushi 17
0x39, 0x69, // pushi 69
0x38, 0x31, 0x26, // pushi 2631
0x39, 0x6a, // pushi 6a
0x39, 0x64, // pushi 64
0x43, 0x1b, 0x14, // call kDisplay
0x35, 0x1e, // ldi 1e
0x65, 0x20, // aTop ticks
0x32, // jmp [end]
// 2 extra bytes, jmp offset
0
};
const uint16 ecoquest2PatchEcorderTutorial[] = {
0x31, 0x23, // bnt [next state] (save 1 byte)
// The parameter count below should be 7, but we're out of bytes
// to patch! A workaround has been added because of this
0x78, // push1 (parameter count)
//0x39, 0x07, // pushi 07 (parameter count)
0x39, 0x0b, // push (FillBoxAny)
0x39, 0x1d, // pushi 29d
0x39, 0x73, // pushi 115d
0x39, 0x5e, // pushi 94d
0x38, 0xd7, 0x00, // pushi 215d
0x78, // push1 (visual screen)
0x39, 0x17, // pushi 17 (color)
0x43, 0x6c, 0x0e, // call kGraph
// The parameter count below should be 5, but we're out of bytes
// to patch! A workaround has been added because of this
0x78, // push1 (parameter count)
//0x39, 0x05, // pushi 05 (parameter count)
0x39, 0x0c, // pushi 12d (UpdateBox)
0x39, 0x1d, // pushi 29d
0x39, 0x73, // pushi 115d
0x39, 0x5e, // pushi 94d
0x38, 0xd7, 0x00, // pushi 215d
0x43, 0x6c, 0x0a, // call kGraph
// We are out of bytes to patch at this point,
// so we skip 494 (0x1EE) bytes to reuse this code:
// ldi 1e
// aTop 20
// jmp 030e (jump to end)
0x32, 0xee, 0x01, // skip 494 (0x1EE) bytes
PATCH_END
};
// script, description, magic DWORD, adjust
const SciScriptSignature ecoquest2Signatures[] = {
{ 50, "initial text not removed on ecorder", 1, PATCH_MAGICDWORD(0x39, 0x64, 0x39, 0x7d), -8, ecoquest2SignatureEcorder, ecoquest2PatchEcorder },
{ 333, "initial text not removed on ecorder tutorial",1, PATCH_MAGICDWORD(0x39, 0x64, 0x39, 0x7d), -9, ecoquest2SignatureEcorderTutorial, ecoquest2PatchEcorderTutorial },
SCI_SIGNATUREENTRY_TERMINATOR
};

2
engines/sci/engine/workarounds.cpp
View file

@ -335,6 +335,7 @@ const SciWorkaroundEntry kGraphFillBoxForeground_workarounds[] = {
// gameID, room,script,lvl, object-name, method-name, call,index, workaround
const SciWorkaroundEntry kGraphFillBoxAny_workarounds[] = {
{ GID_ECOQUEST2, 100, 333, 0, "showEcorder", "changeState", -1, 0, { WORKAROUND_STILLCALL, 0 } }, // necessary workaround for our ecorder script patch, because there isn't enough space to patch the function
{ GID_SQ4, -1, 818, 0, "iconTextSwitch", "show", -1, 0, { WORKAROUND_STILLCALL, 0 } }, // CD: game menu "text/speech" display - parameter 5 is missing, but the right color number is on the stack
SCI_WORKAROUNDENTRY_TERMINATOR
};
@ -357,6 +358,7 @@ const SciWorkaroundEntry kGraphRedrawBox_workarounds[] = {
// gameID, room,script,lvl, object-name, method-name, call,index, workaround
const SciWorkaroundEntry kGraphUpdateBox_workarounds[] = {
{ GID_ECOQUEST2, 100, 333, 0, "showEcorder", "changeState", -1, 0, { WORKAROUND_STILLCALL, 0 } }, // necessary workaround for our ecorder script patch, because there isn't enough space to patch the function
{ GID_PQ3, 202, 202, 0, "MapEdit", "movePt", -1, 0, { WORKAROUND_STILLCALL, 0 } }, // when plotting crimes, gets called with 2 extra parameters - bug #3038077
{ GID_PQ3, 202, 202, 0, "MapEdit", "addPt", -1, 0, { WORKAROUND_STILLCALL, 0 } }, // when plotting crimes, gets called with 2 extra parameters - bug #3038077
SCI_WORKAROUNDENTRY_TERMINATOR