/* ScummVM - Graphic Adventure Engine * * ScummVM is the legal property of its developers, whose names * are too numerous to list here. Please refer to the COPYRIGHT * file distributed with this source distribution. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * * $URL$ * $Id$ * */ #include "sci/sci.h" #include "sci/engine/kernel.h" #include "sci/event.h" #include "sci/resource.h" #include "sci/engine/state.h" #include "common/system.h" namespace Sci { // Uncompiled kernel signatures are formed from a string of letters. // each corresponding to a type of a parameter (see below). // Use small letters to indicate end of sum type. // Use capital letters for sum types, e.g. // "LNoLr" for a function which takes two arguments: // (1) list, node or object // (2) list or ref #define KSIG_SPEC_LIST 'l' #define KSIG_SPEC_NODE 'n' #define KSIG_SPEC_OBJECT 'o' #define KSIG_SPEC_REF 'r' // Said Specs and strings #define KSIG_SPEC_ARITHMETIC 'i' #define KSIG_SPEC_NULL 'z' #define KSIG_SPEC_ANY '.' #define KSIG_SPEC_ELLIPSIS '*' // Arbitrarily more TYPED arguments #define KSIG_SPEC_SUM_DONE ('a' - 'A') /** Default kernel name table. */ static const char *s_defaultKernelNames[] = { /*0x00*/ "Load", /*0x01*/ "UnLoad", /*0x02*/ "ScriptID", /*0x03*/ "DisposeScript", /*0x04*/ "Clone", /*0x05*/ "DisposeClone", /*0x06*/ "IsObject", /*0x07*/ "RespondsTo", /*0x08*/ "DrawPic", /*0x09*/ "Dummy", // Show /*0x0a*/ "PicNotValid", /*0x0b*/ "Animate", /*0x0c*/ "SetNowSeen", /*0x0d*/ "NumLoops", /*0x0e*/ "NumCels", /*0x0f*/ "CelWide", /*0x10*/ "CelHigh", /*0x11*/ "DrawCel", /*0x12*/ "AddToPic", /*0x13*/ "NewWindow", /*0x14*/ "GetPort", /*0x15*/ "SetPort", /*0x16*/ "DisposeWindow", /*0x17*/ "DrawControl", /*0x18*/ "HiliteControl", /*0x19*/ "EditControl", /*0x1a*/ "TextSize", /*0x1b*/ "Display", /*0x1c*/ "GetEvent", /*0x1d*/ "GlobalToLocal", /*0x1e*/ "LocalToGlobal", /*0x1f*/ "MapKeyToDir", /*0x20*/ "DrawMenuBar", /*0x21*/ "MenuSelect", /*0x22*/ "AddMenu", /*0x23*/ "DrawStatus", /*0x24*/ "Parse", /*0x25*/ "Said", /*0x26*/ "SetSynonyms", // Portrait (KQ6 hires) /*0x27*/ "HaveMouse", /*0x28*/ "SetCursor", // FOpen (SCI0) // FPuts (SCI0) // FGets (SCI0) // FClose (SCI0) /*0x29*/ "SaveGame", /*0x2a*/ "RestoreGame", /*0x2b*/ "RestartGame", /*0x2c*/ "GameIsRestarting", /*0x2d*/ "DoSound", /*0x2e*/ "NewList", /*0x2f*/ "DisposeList", /*0x30*/ "NewNode", /*0x31*/ "FirstNode", /*0x32*/ "LastNode", /*0x33*/ "EmptyList", /*0x34*/ "NextNode", /*0x35*/ "PrevNode", /*0x36*/ "NodeValue", /*0x37*/ "AddAfter", /*0x38*/ "AddToFront", /*0x39*/ "AddToEnd", /*0x3a*/ "FindKey", /*0x3b*/ "DeleteKey", /*0x3c*/ "Random", /*0x3d*/ "Abs", /*0x3e*/ "Sqrt", /*0x3f*/ "GetAngle", /*0x40*/ "GetDistance", /*0x41*/ "Wait", /*0x42*/ "GetTime", /*0x43*/ "StrEnd", /*0x44*/ "StrCat", /*0x45*/ "StrCmp", /*0x46*/ "StrLen", /*0x47*/ "StrCpy", /*0x48*/ "Format", /*0x49*/ "GetFarText", /*0x4a*/ "ReadNumber", /*0x4b*/ "BaseSetter", /*0x4c*/ "DirLoop", /*0x4d*/ "CanBeHere", // CantBeHere in newer SCI versions /*0x4e*/ "OnControl", /*0x4f*/ "InitBresen", /*0x50*/ "DoBresen", /*0x51*/ "Platform", // DoAvoider (SCI0) /*0x52*/ "SetJump", /*0x53*/ "SetDebug", /*0x54*/ "Dummy", // InspectObj /*0x55*/ "Dummy", // ShowSends /*0x56*/ "Dummy", // ShowObjs /*0x57*/ "Dummy", // ShowFree /*0x58*/ "MemoryInfo", /*0x59*/ "Dummy", // StackUsage /*0x5a*/ "Dummy", // Profiler /*0x5b*/ "GetMenu", /*0x5c*/ "SetMenu", /*0x5d*/ "GetSaveFiles", /*0x5e*/ "GetCWD", /*0x5f*/ "CheckFreeSpace", /*0x60*/ "ValidPath", /*0x61*/ "CoordPri", /*0x62*/ "StrAt", /*0x63*/ "DeviceInfo", /*0x64*/ "GetSaveDir", /*0x65*/ "CheckSaveGame", /*0x66*/ "ShakeScreen", /*0x67*/ "FlushResources", /*0x68*/ "SinMult", /*0x69*/ "CosMult", /*0x6a*/ "SinDiv", /*0x6b*/ "CosDiv", /*0x6c*/ "Graph", /*0x6d*/ "Joystick", // End of kernel function table for SCI0 /*0x6e*/ "Dummy", // ShiftScreen /*0x6f*/ "Palette", /*0x70*/ "MemorySegment", /*0x71*/ "Intersections", // MoveCursor (SCI1 late), PalVary (SCI1.1) /*0x72*/ "Memory", /*0x73*/ "Dummy", // ListOps /*0x74*/ "FileIO", /*0x75*/ "DoAudio", /*0x76*/ "DoSync", /*0x77*/ "AvoidPath", /*0x78*/ "Sort", // StrSplit (SCI01) /*0x79*/ "Dummy", // ATan /*0x7a*/ "Lock", /*0x7b*/ "StrSplit", /*0x7c*/ "GetMessage", // Message (SCI1.1) /*0x7d*/ "IsItSkip", /*0x7e*/ "MergePoly", /*0x7f*/ "ResCheck", /*0x80*/ "AssertPalette", /*0x81*/ "TextColors", /*0x82*/ "TextFonts", /*0x83*/ "Dummy", // Record /*0x84*/ "Dummy", // PlayBack /*0x85*/ "ShowMovie", /*0x86*/ "SetVideoMode", /*0x87*/ "SetQuitStr", /*0x88*/ "Dummy" // DbugStr }; reg_t kStub(EngineState *s, int argc, reg_t *argv) { Kernel *kernel = g_sci->getKernel(); int kernelCallNr = -1; Common::List::iterator callIterator = s->_executionStack.end(); if (callIterator != s->_executionStack.begin()) { callIterator--; ExecStack lastCall = *callIterator; kernelCallNr = lastCall.debugSelector; } Common::String warningMsg = "Dummy function k" + kernel->getKernelName(kernelCallNr) + Common::String::printf("[%x]", kernelCallNr) + " invoked. Params: " + Common::String::printf("%d", argc) + " ("; for (int i = 0; i < argc; i++) { warningMsg += Common::String::printf("%04x:%04x", PRINT_REG(argv[i])); warningMsg += (i == argc - 1 ? ")" : ", "); } warning("%s", warningMsg.c_str()); return s->r_acc; } reg_t kStubNull(EngineState *s, int argc, reg_t *argv) { kStub(s, argc, argv); return NULL_REG; } reg_t kDummy(EngineState *s, int argc, reg_t *argv) { kStub(s, argc, argv); error("Kernel function was called, which was considered to be unused - see log for details"); } // [io] -> either integer or object // (io) -> optionally integer AND an object // (i) -> optional integer // . -> any type // i* -> optional multiple integers // .* -> any parameters afterwards (or none) // gameID, scriptNr,lvl, object-name, method-name, call, index, replace static const SciWorkaroundEntry kAbs_workarounds[] = { { GID_HOYLE1, 1, 0, "room1", "doit", -1, 0, { 2, 0x3e9 } }, // crazy eights - called with objects instead of integers { GID_HOYLE1, 2, 0, "room2", "doit", -1, 0, { 2, 0x3e9 } }, // old maid - called with objects instead of integers { GID_HOYLE1, 3, 0, "room3", "doit", -1, 0, { 2, 0x3e9 } }, // hearts - called with objects instead of integers SCI_WORKAROUNDENTRY_TERMINATOR }; // gameID, scriptNr,lvl, object-name, method-name, call, index, replace static const SciWorkaroundEntry kDisposeScript_workarounds[] = { { GID_QFG1, 64, 0, "rm64", "dispose", -1, 0, { 1, 0 } }, // when leaving graveyard, parameter 0 is an object SCI_WORKAROUNDENTRY_TERMINATOR }; // gameID, scriptNr,lvl, object-name, method-name, call, index, replace static const SciWorkaroundEntry kDoSoundFade_workarounds[] = { { GID_KQ6, 989, 0, "globalSound", "fade", -1, 0, { 0, 0 } }, // during intro, parameter 4 is an object SCI_WORKAROUNDENTRY_TERMINATOR }; // gameID, scriptNr,lvl, object-name, method-name, call, index, replace static const SciWorkaroundEntry kGraphFillBoxAny_workarounds[] = { { GID_SQ4, 818, 0, "iconTextSwitch", "show", -1, 0, { 0, 0 } }, // game menu "text/speech" display - parameter 5 is missing, but the right color number is on the stack SCI_WORKAROUNDENTRY_TERMINATOR }; // gameID, scriptNr,lvl, object-name, method-name, call, index, replace static const SciWorkaroundEntry kUnLoad_workarounds[] = { { GID_LSL6, 130, 0, "recruitLarryScr", "changeState", -1, 0, { 1, 0 } }, // during intro, a 3rd parameter is passed by accident { GID_SQ1, 303, 0, "slotGuy", "dispose", -1, 0, { 1, 0 } }, // when leaving ulence flats bar, parameter 1 is not passed - script error SCI_WORKAROUNDENTRY_TERMINATOR }; struct SciKernelMapSubEntry { SciVersion fromVersion; SciVersion toVersion; uint16 id; const char *name; KernelFunctionCall *function; const char *signature; const SciWorkaroundEntry *workarounds; }; #define SCI_SUBOPENTRY_TERMINATOR { SCI_VERSION_NONE, SCI_VERSION_NONE, 0, NULL, NULL, NULL, NULL } #define SIG_SCIALL SCI_VERSION_NONE, SCI_VERSION_NONE #define SIG_SCI0 SCI_VERSION_NONE, SCI_VERSION_01 #define SIG_SCI1 SCI_VERSION_1_EGA, SCI_VERSION_1_LATE #define SIG_SCI11 SCI_VERSION_1_1, SCI_VERSION_1_1 #define SIG_SCI16 SCI_VERSION_NONE, SCI_VERSION_1_1 #define SIG_SCI32 SCI_VERSION_2, SCI_VERSION_NONE // SCI-Sound-Version #define SIG_SOUNDSCI0 SCI_VERSION_0_EARLY, SCI_VERSION_0_LATE #define SIG_SOUNDSCI1EARLY SCI_VERSION_1_EARLY, SCI_VERSION_1_EARLY #define SIG_SOUNDSCI1LATE SCI_VERSION_1_LATE, SCI_VERSION_1_LATE #define SIGFOR_ALL 0x3f #define SIGFOR_DOS 1 << 0 #define SIGFOR_PC98 1 << 1 #define SIGFOR_WIN 1 << 2 #define SIGFOR_MAC 1 << 3 #define SIGFOR_AMIGA 1 << 4 #define SIGFOR_ATARI 1 << 5 #define SIGFOR_PC SIGFOR_DOS|SIGFOR_WIN #define SIG_EVERYWHERE SIG_SCIALL, SIGFOR_ALL #define MAP_CALL(_name_) #_name_, k##_name_ // version, subId, function-mapping, signature, workarounds static const SciKernelMapSubEntry kDoSound_subops[] = { { SIG_SOUNDSCI0, 0, MAP_CALL(DoSoundInit), "o", NULL }, { SIG_SOUNDSCI0, 1, MAP_CALL(DoSoundPlay), "o", NULL }, { SIG_SOUNDSCI0, 2, MAP_CALL(DoSoundDummy), "o", NULL }, { SIG_SOUNDSCI0, 3, MAP_CALL(DoSoundDispose), "o", NULL }, { SIG_SOUNDSCI0, 4, MAP_CALL(DoSoundMute), "(i)", NULL }, { SIG_SOUNDSCI0, 5, MAP_CALL(DoSoundStop), "o", NULL }, { SIG_SOUNDSCI0, 6, MAP_CALL(DoSoundPause), "i", NULL }, { SIG_SOUNDSCI0, 7, MAP_CALL(DoSoundResume), "", NULL }, { SIG_SOUNDSCI0, 8, MAP_CALL(DoSoundMasterVolume), "(i)", NULL }, { SIG_SOUNDSCI0, 9, MAP_CALL(DoSoundUpdate), "o", NULL }, { SIG_SOUNDSCI0, 10, MAP_CALL(DoSoundFade), "o", NULL }, { SIG_SOUNDSCI0, 11, MAP_CALL(DoSoundGetPolyphony), "", NULL }, { SIG_SOUNDSCI0, 12, MAP_CALL(DoSoundStopAll), "", NULL }, { SIG_SOUNDSCI1EARLY, 0, MAP_CALL(DoSoundMasterVolume), NULL, NULL }, { SIG_SOUNDSCI1EARLY, 1, MAP_CALL(DoSoundMute), NULL, NULL }, { SIG_SOUNDSCI1EARLY, 2, MAP_CALL(DoSoundDummy), NULL, NULL }, { SIG_SOUNDSCI1EARLY, 3, MAP_CALL(DoSoundGetPolyphony), NULL, NULL }, { SIG_SOUNDSCI1EARLY, 4, MAP_CALL(DoSoundUpdate), NULL, NULL }, { SIG_SOUNDSCI1EARLY, 5, MAP_CALL(DoSoundInit), NULL, NULL }, { SIG_SOUNDSCI1EARLY, 6, MAP_CALL(DoSoundDispose), NULL, NULL }, { SIG_SOUNDSCI1EARLY, 7, MAP_CALL(DoSoundPlay), "oi", NULL }, { SIG_SOUNDSCI1EARLY, 8, MAP_CALL(DoSoundStop), NULL, NULL }, { SIG_SOUNDSCI1EARLY, 9, MAP_CALL(DoSoundPause), "[o0]i", NULL }, { SIG_SOUNDSCI1EARLY, 10, MAP_CALL(DoSoundFade), "oiiii", NULL }, { SIG_SOUNDSCI1EARLY, 11, MAP_CALL(DoSoundUpdateCues), "o", NULL }, { SIG_SOUNDSCI1EARLY, 12, MAP_CALL(DoSoundSendMidi), "oiiii", NULL }, { SIG_SOUNDSCI1EARLY, 13, MAP_CALL(DoSoundReverb), "oi", NULL }, { SIG_SOUNDSCI1EARLY, 14, MAP_CALL(DoSoundSetHold), "oi", NULL }, { SIG_SOUNDSCI1EARLY, 15, MAP_CALL(DoSoundDummy), "", NULL }, // ^^ Longbow demo { SIG_SOUNDSCI1LATE, 0, MAP_CALL(DoSoundMasterVolume), NULL, NULL }, { SIG_SOUNDSCI1LATE, 1, MAP_CALL(DoSoundMute), NULL, NULL }, { SIG_SOUNDSCI1LATE, 2, MAP_CALL(DoSoundDummy), "", NULL }, { SIG_SOUNDSCI1LATE, 3, MAP_CALL(DoSoundGetPolyphony), NULL, NULL }, { SIG_SOUNDSCI1LATE, 4, MAP_CALL(DoSoundGetAudioCapability), "", NULL }, { SIG_SOUNDSCI1LATE, 5, MAP_CALL(DoSoundSuspend), "i", NULL }, { SIG_SOUNDSCI1LATE, 6, MAP_CALL(DoSoundInit), NULL, NULL }, { SIG_SOUNDSCI1LATE, 7, MAP_CALL(DoSoundDispose), NULL, NULL }, { SIG_SOUNDSCI1LATE, 8, MAP_CALL(DoSoundPlay), NULL, NULL }, { SIG_SOUNDSCI1LATE, 9, MAP_CALL(DoSoundStop), NULL, NULL }, { SIG_SOUNDSCI1LATE, 10, MAP_CALL(DoSoundPause), NULL, NULL }, { SIG_SOUNDSCI1LATE, 11, MAP_CALL(DoSoundFade), "oiiii(i)", kDoSoundFade_workarounds }, { SIG_SOUNDSCI1LATE, 12, MAP_CALL(DoSoundSetHold), NULL, NULL }, { SIG_SOUNDSCI1LATE, 13, MAP_CALL(DoSoundDummy), NULL, NULL }, { SIG_SOUNDSCI1LATE, 14, MAP_CALL(DoSoundSetVolume), "oi", NULL }, { SIG_SOUNDSCI1LATE, 15, MAP_CALL(DoSoundSetPriority), "oi", NULL }, { SIG_SOUNDSCI1LATE, 16, MAP_CALL(DoSoundSetLoop), "oi", NULL }, { SIG_SOUNDSCI1LATE, 17, MAP_CALL(DoSoundUpdateCues), NULL, NULL }, { SIG_SOUNDSCI1LATE, 18, MAP_CALL(DoSoundSendMidi), NULL, NULL }, { SIG_SOUNDSCI1LATE, 19, MAP_CALL(DoSoundReverb), NULL, NULL }, { SIG_SOUNDSCI1LATE, 20, MAP_CALL(DoSoundUpdate), NULL, NULL }, SCI_SUBOPENTRY_TERMINATOR }; // version, subId, function-mapping, signature, workarounds static const SciKernelMapSubEntry kGraph_subops[] = { { SIG_SCI32, 1, MAP_CALL(StubNull), "", NULL }, // called by gk1 sci32 right at the start { SIG_SCIALL, 2, MAP_CALL(GraphGetColorCount), "", NULL }, // 3 - set palette via resource { SIG_SCIALL, 4, MAP_CALL(GraphDrawLine), "iiiii(i)(i)", NULL }, // 5 - nop // 6 - draw pattern { SIG_SCIALL, 7, MAP_CALL(GraphSaveBox), "iiiii", NULL }, { SIG_SCIALL, 8, MAP_CALL(GraphRestoreBox), "[r0!]", NULL }, // ^ this may get called with invalid references, we check them within restoreBits() and sierra sci behaves the same { SIG_SCIALL, 9, MAP_CALL(GraphFillBoxBackground), "iiii", NULL }, { SIG_SCIALL, 10, MAP_CALL(GraphFillBoxForeground), "iiii", NULL }, { SIG_SCIALL, 11, MAP_CALL(GraphFillBoxAny), "iiiiii(i)(i)", kGraphFillBoxAny_workarounds }, { SIG_SCI11, 12, MAP_CALL(GraphUpdateBox), "iiii(i)(r0)", NULL }, // kq6 hires { SIG_SCIALL, 12, MAP_CALL(GraphUpdateBox), "iiii(i)", NULL }, { SIG_SCIALL, 13, MAP_CALL(GraphRedrawBox), "iiii", NULL }, { SIG_SCIALL, 14, MAP_CALL(GraphAdjustPriority), "ii", NULL }, { SIG_SCI11, 15, MAP_CALL(GraphSaveUpscaledHiresBox), "iiii", NULL }, // kq6 hires SCI_SUBOPENTRY_TERMINATOR }; // version, subId, function-mapping, signature, workarounds static const SciKernelMapSubEntry kPalVary_subops[] = { { SIG_SCIALL, 0, MAP_CALL(PalVaryInit), "ii(i)(i)", NULL }, { SIG_SCIALL, 1, MAP_CALL(PalVaryReverse), "(i)(i)(i)", NULL }, { SIG_SCIALL, 2, MAP_CALL(PalVaryGetCurrentStep), "", NULL }, { SIG_SCIALL, 3, MAP_CALL(PalVaryDeinit), "", NULL }, { SIG_SCIALL, 4, MAP_CALL(PalVaryChangeTarget), "i", NULL }, { SIG_SCIALL, 5, MAP_CALL(PalVaryChangeTicks), "i", NULL }, { SIG_SCIALL, 6, MAP_CALL(PalVaryPauseResume), "i", NULL }, { SIG_SCI32, 8, MAP_CALL(PalVaryUnknown), "", NULL }, SCI_SUBOPENTRY_TERMINATOR }; // version, subId, function-mapping, signature, workarounds static const SciKernelMapSubEntry kPalette_subops[] = { { SIG_SCIALL, 1, MAP_CALL(PaletteSetFromResource), "i(i)", NULL }, { SIG_SCIALL, 2, MAP_CALL(PaletteSetFlag), "iii", NULL }, { SIG_SCIALL, 3, MAP_CALL(PaletteUnsetFlag), "iii", NULL }, { SIG_SCIALL, 4, MAP_CALL(PaletteSetIntensity), "iii(i)", NULL }, { SIG_SCIALL, 5, MAP_CALL(PaletteFindColor), "iii", NULL }, { SIG_SCIALL, 6, MAP_CALL(PaletteAnimate), "i*", NULL }, { SIG_SCIALL, 7, MAP_CALL(PaletteSave), "", NULL }, { SIG_SCIALL, 8, MAP_CALL(PaletteRestore), "i", NULL }, SCI_SUBOPENTRY_TERMINATOR }; struct SciKernelMapEntry { const char *name; KernelFunctionCall *function; SciVersion fromVersion; SciVersion toVersion; byte forPlatform; const char *signature; const SciKernelMapSubEntry *subFunctions; const SciWorkaroundEntry *workarounds; }; // name, version/platform, signature, sub-signatures, workarounds static SciKernelMapEntry s_kernelMap[] = { { MAP_CALL(Abs), SIG_EVERYWHERE, "i", NULL, kAbs_workarounds }, { MAP_CALL(AddAfter), SIG_EVERYWHERE, "lnn", NULL, NULL }, { MAP_CALL(AddMenu), SIG_EVERYWHERE, "rr", NULL, NULL }, { MAP_CALL(AddToEnd), SIG_EVERYWHERE, "ln", NULL, NULL }, { MAP_CALL(AddToFront), SIG_EVERYWHERE, "ln", NULL, NULL }, { MAP_CALL(AddToPic), SIG_EVERYWHERE, "[il](iiiiii)", NULL, NULL }, { MAP_CALL(Animate), SIG_EVERYWHERE, "(l0)(i)", NULL, NULL }, { MAP_CALL(AssertPalette), SIG_EVERYWHERE, "i", NULL, NULL }, { MAP_CALL(AvoidPath), SIG_EVERYWHERE, "ii(.*)", NULL, NULL }, { MAP_CALL(BaseSetter), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(CanBeHere), SIG_EVERYWHERE, "o(l)", NULL, NULL }, { MAP_CALL(CantBeHere), SIG_EVERYWHERE, "o(l)", NULL, NULL }, { MAP_CALL(CelHigh), SIG_EVERYWHERE, "ii(i)", NULL, NULL }, { MAP_CALL(CelWide), SIG_EVERYWHERE, "ii(i)", NULL, NULL }, { MAP_CALL(CheckFreeSpace), SIG_SCI32, SIGFOR_ALL, "r.*", NULL, NULL }, { MAP_CALL(CheckFreeSpace), SIG_EVERYWHERE, "r", NULL, NULL }, { MAP_CALL(CheckSaveGame), SIG_EVERYWHERE, ".*", NULL, NULL }, { MAP_CALL(Clone), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(CoordPri), SIG_EVERYWHERE, "i(i)", NULL, NULL }, { MAP_CALL(CosDiv), SIG_EVERYWHERE, "ii", NULL, NULL }, { MAP_CALL(DeleteKey), SIG_EVERYWHERE, "l.", NULL, NULL }, { MAP_CALL(DeviceInfo), SIG_EVERYWHERE, "i(r)(r)(i)", NULL, NULL }, // subop { MAP_CALL(Display), SIG_EVERYWHERE, "[ir]([ir!]*)", NULL, NULL }, // ^ we allow invalid references here, because kDisplay gets called with those in e.g. pq3 during intro // restoreBits() checks and skips invalid handles, so that's fine. Sierra SCI behaved the same { MAP_CALL(DirLoop), SIG_EVERYWHERE, "oi", NULL, NULL }, { MAP_CALL(DisposeClone), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(DisposeList), SIG_EVERYWHERE, "l", NULL, NULL }, { MAP_CALL(DisposeScript), SIG_EVERYWHERE, "i(i*)", NULL, kDisposeScript_workarounds }, { MAP_CALL(DisposeWindow), SIG_EVERYWHERE, "i(i)", NULL, NULL }, { MAP_CALL(DoAudio), SIG_EVERYWHERE, "i(.*)", NULL, NULL }, // subop { MAP_CALL(DoAvoider), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(DoBresen), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(DoSound), SIG_EVERYWHERE, "i([io])(i)(ii[io])(i)", kDoSound_subops, NULL }, { MAP_CALL(DoSync), SIG_EVERYWHERE, "i(.*)", NULL, NULL }, // subop { MAP_CALL(DrawCel), SIG_SCI11, SIGFOR_PC, "iiiii(i)(i)(r0)", NULL, NULL }, // for kq6 hires { MAP_CALL(DrawCel), SIG_EVERYWHERE, "iiiii(i)(i)", NULL, NULL }, { MAP_CALL(DrawControl), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(DrawMenuBar), SIG_EVERYWHERE, "i", NULL, NULL }, { MAP_CALL(DrawPic), SIG_EVERYWHERE, "i(i)(i)(i)", NULL, NULL }, { MAP_CALL(DrawStatus), SIG_EVERYWHERE, "[r0](i)(i)", NULL, NULL }, { MAP_CALL(EditControl), SIG_EVERYWHERE, "[o0][o0]", NULL, NULL }, { MAP_CALL(Empty), SIG_EVERYWHERE, "(.*)", NULL, NULL }, { MAP_CALL(EmptyList), SIG_EVERYWHERE, "l", NULL, NULL }, { MAP_CALL(FClose), SIG_EVERYWHERE, "i", NULL, NULL }, { MAP_CALL(FGets), SIG_EVERYWHERE, "rii", NULL, NULL }, { MAP_CALL(FOpen), SIG_EVERYWHERE, "ri", NULL, NULL }, { MAP_CALL(FPuts), SIG_EVERYWHERE, "ir", NULL, NULL }, { MAP_CALL(FileIO), SIG_EVERYWHERE, "i(.*)", NULL, NULL }, // subop { MAP_CALL(FindKey), SIG_EVERYWHERE, "l.", NULL, NULL }, { MAP_CALL(FirstNode), SIG_EVERYWHERE, "[l0]", NULL, NULL }, { MAP_CALL(FlushResources), SIG_EVERYWHERE, "i", NULL, NULL }, { MAP_CALL(Format), SIG_EVERYWHERE, "r(.*)", NULL, NULL }, { MAP_CALL(GameIsRestarting), SIG_EVERYWHERE, "(i)", NULL, NULL }, { MAP_CALL(GetAngle), SIG_EVERYWHERE, "iiii", NULL, NULL }, // ^^ FIXME - occasionally KQ6 passes a 5th argument by mistake { MAP_CALL(GetCWD), SIG_EVERYWHERE, "r", NULL, NULL }, { MAP_CALL(GetDistance), SIG_EVERYWHERE, "ii(i)(i)(i)(i)", NULL, NULL }, { MAP_CALL(GetEvent), SIG_SCIALL, SIGFOR_MAC, "io(i*)", NULL, NULL }, { MAP_CALL(GetEvent), SIG_EVERYWHERE, "io", NULL, NULL }, { MAP_CALL(GetFarText), SIG_EVERYWHERE, "ii[r0]", NULL, NULL }, { MAP_CALL(GetMenu), SIG_EVERYWHERE, "i.", NULL, NULL }, { MAP_CALL(GetMessage), SIG_EVERYWHERE, "iiir", NULL, NULL }, { MAP_CALL(GetPort), SIG_EVERYWHERE, "", NULL, NULL }, { MAP_CALL(GetSaveDir), SIG_SCI32, SIGFOR_ALL, "(r*)", NULL, NULL }, { MAP_CALL(GetSaveDir), SIG_EVERYWHERE, "", NULL, NULL }, { MAP_CALL(GetSaveFiles), SIG_EVERYWHERE, "rrr", NULL, NULL }, { MAP_CALL(GetTime), SIG_EVERYWHERE, "(i)", NULL, NULL }, { MAP_CALL(GlobalToLocal), SIG_SCI32, SIGFOR_ALL, "oo", NULL, NULL }, { MAP_CALL(GlobalToLocal), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(Graph), SIG_EVERYWHERE, "i([!.]*)", kGraph_subops, NULL }, { MAP_CALL(HaveMouse), SIG_EVERYWHERE, "", NULL, NULL }, { MAP_CALL(HiliteControl), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(InitBresen), SIG_EVERYWHERE, "o(i)", NULL, NULL }, { MAP_CALL(Intersections), SIG_EVERYWHERE, "iiiiriiiri", NULL, NULL }, { MAP_CALL(IsItSkip), SIG_EVERYWHERE, "iiiii", NULL, NULL }, { MAP_CALL(IsObject), SIG_EVERYWHERE, ".", NULL, NULL }, { MAP_CALL(Joystick), SIG_EVERYWHERE, "i(.*)", NULL, NULL }, // subop { MAP_CALL(LastNode), SIG_EVERYWHERE, "l", NULL, NULL }, { MAP_CALL(Load), SIG_EVERYWHERE, "ii(i*)", NULL, NULL }, { MAP_CALL(LocalToGlobal), SIG_SCI32, SIGFOR_ALL, "oo", NULL, NULL }, { MAP_CALL(LocalToGlobal), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(Lock), SIG_EVERYWHERE, "ii(i)", NULL, NULL }, { MAP_CALL(MapKeyToDir), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(Memory), SIG_EVERYWHERE, "i(.*)", NULL, NULL }, // subop { MAP_CALL(MemoryInfo), SIG_EVERYWHERE, "i", NULL, NULL }, { MAP_CALL(MemorySegment), SIG_EVERYWHERE, "ir(i)", NULL, NULL }, // subop { MAP_CALL(MenuSelect), SIG_EVERYWHERE, "o(i)", NULL, NULL }, { MAP_CALL(MergePoly), SIG_EVERYWHERE, "rli", NULL, NULL }, { MAP_CALL(Message), SIG_EVERYWHERE, "i(.*)", NULL, NULL }, // subop { MAP_CALL(MoveCursor), SIG_EVERYWHERE, "ii", NULL, NULL }, { MAP_CALL(NewList), SIG_EVERYWHERE, "", NULL, NULL }, { MAP_CALL(NewNode), SIG_EVERYWHERE, "..", NULL, NULL }, { MAP_CALL(NewWindow), SIG_SCIALL, SIGFOR_MAC, ".*", NULL, NULL }, { MAP_CALL(NewWindow), SIG_SCI0, SIGFOR_ALL, "iiii[r0]i(i)(i)(i)", NULL, NULL }, { MAP_CALL(NewWindow), SIG_SCI1, SIGFOR_ALL, "iiii[ir]i(i)(i)([ir])(i)(i)(i)(i)", NULL, NULL }, { MAP_CALL(NewWindow), SIG_SCI11, SIGFOR_ALL, "iiiiiiii[r0]i(i)(i)(i)", NULL, NULL }, { MAP_CALL(NextNode), SIG_EVERYWHERE, "n", NULL, NULL }, { MAP_CALL(NodeValue), SIG_EVERYWHERE, "[n0]", NULL, NULL }, { MAP_CALL(NumCels), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(NumLoops), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(OnControl), SIG_EVERYWHERE, "ii(i)(i)(i)", NULL, NULL }, { MAP_CALL(PalVary), SIG_EVERYWHERE, "i(i*)", kPalVary_subops, NULL }, { MAP_CALL(Palette), SIG_EVERYWHERE, "i(.*)", kPalette_subops, NULL }, { MAP_CALL(Parse), SIG_EVERYWHERE, "ro", NULL, NULL }, { MAP_CALL(PicNotValid), SIG_EVERYWHERE, "(i)", NULL, NULL }, { MAP_CALL(Platform), SIG_EVERYWHERE, "(.*)", NULL, NULL }, { MAP_CALL(Portrait), SIG_EVERYWHERE, "i(.*)", NULL, NULL }, // subop { MAP_CALL(PrevNode), SIG_EVERYWHERE, "n", NULL, NULL }, { MAP_CALL(PriCoord), SIG_EVERYWHERE, "i", NULL, NULL }, { MAP_CALL(Random), SIG_EVERYWHERE, "ii", NULL, NULL }, { MAP_CALL(ReadNumber), SIG_EVERYWHERE, "r", NULL, NULL }, { MAP_CALL(ResCheck), SIG_EVERYWHERE, "ii(iiii)", NULL, NULL }, { MAP_CALL(RespondsTo), SIG_EVERYWHERE, ".i", NULL, NULL }, { MAP_CALL(RestartGame), SIG_EVERYWHERE, "", NULL, NULL }, { MAP_CALL(RestoreGame), SIG_EVERYWHERE, "rir", NULL, NULL }, { MAP_CALL(Said), SIG_EVERYWHERE, "[r0]", NULL, NULL }, { MAP_CALL(SaveGame), SIG_EVERYWHERE, "rir(r)", NULL, NULL }, { MAP_CALL(ScriptID), SIG_EVERYWHERE, "[io](i)", NULL, NULL }, { MAP_CALL(SetCursor), SIG_EVERYWHERE, "i(i*)", NULL, NULL }, { MAP_CALL(SetDebug), SIG_EVERYWHERE, "(i*)", NULL, NULL }, { MAP_CALL(SetJump), SIG_EVERYWHERE, "oiii", NULL, NULL }, { MAP_CALL(SetMenu), SIG_EVERYWHERE, "i(.*)", NULL, NULL }, { MAP_CALL(SetNowSeen), SIG_EVERYWHERE, "o(i)", NULL, NULL }, { MAP_CALL(SetPort), SIG_EVERYWHERE, "i(iii)(i)(i)(i)", NULL, NULL }, { MAP_CALL(SetQuitStr), SIG_EVERYWHERE, "r", NULL, NULL }, { MAP_CALL(SetSynonyms), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(SetVideoMode), SIG_EVERYWHERE, "i", NULL, NULL }, { MAP_CALL(ShakeScreen), SIG_EVERYWHERE, "(i)(i)", NULL, NULL }, { MAP_CALL(ShowMovie), SIG_EVERYWHERE, "(.*)", NULL, NULL }, { MAP_CALL(SinDiv), SIG_EVERYWHERE, "ii", NULL, NULL }, { MAP_CALL(Sort), SIG_EVERYWHERE, "ooo", NULL, NULL }, { MAP_CALL(Sqrt), SIG_EVERYWHERE, "i", NULL, NULL }, { MAP_CALL(StrAt), SIG_EVERYWHERE, "ri(i)", NULL, NULL }, { MAP_CALL(StrCat), SIG_EVERYWHERE, "rr", NULL, NULL }, { MAP_CALL(StrCmp), SIG_EVERYWHERE, "rr(i)", NULL, NULL }, { MAP_CALL(StrCpy), SIG_EVERYWHERE, "[r0]r(i)", NULL, NULL }, { MAP_CALL(StrEnd), SIG_EVERYWHERE, "r", NULL, NULL }, { MAP_CALL(StrLen), SIG_EVERYWHERE, "[r0]", NULL, NULL }, { MAP_CALL(StrSplit), SIG_EVERYWHERE, "rr[r0]", NULL, NULL }, { MAP_CALL(TextColors), SIG_EVERYWHERE, "(i*)", NULL, NULL }, { MAP_CALL(TextFonts), SIG_EVERYWHERE, "(i*)", NULL, NULL }, { MAP_CALL(TextSize), SIG_EVERYWHERE, "r[r0]i(i)(r0)", NULL, NULL }, { MAP_CALL(TimesCos), SIG_EVERYWHERE, "ii", NULL, NULL }, { "CosMult", kTimesCos, SIG_EVERYWHERE, "ii", NULL, NULL }, { MAP_CALL(TimesCot), SIG_EVERYWHERE, "ii", NULL, NULL }, { MAP_CALL(TimesSin), SIG_EVERYWHERE, "ii", NULL, NULL }, { "SinMult", kTimesSin, SIG_EVERYWHERE, "ii", NULL, NULL }, { MAP_CALL(TimesTan), SIG_EVERYWHERE, "ii", NULL, NULL }, { MAP_CALL(UnLoad), SIG_EVERYWHERE, "i[ri]", NULL, kUnLoad_workarounds }, { MAP_CALL(ValidPath), SIG_EVERYWHERE, "r", NULL, NULL }, { MAP_CALL(Wait), SIG_EVERYWHERE, "i", NULL, NULL }, #ifdef ENABLE_SCI32 // SCI2 Kernel Functions { MAP_CALL(AddPlane), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(AddScreenItem), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(Array), SIG_EVERYWHERE, "(.*)", NULL, NULL }, { MAP_CALL(CreateTextBitmap), SIG_EVERYWHERE, "i(.*)", NULL, NULL }, { MAP_CALL(DeletePlane), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(DeleteScreenItem), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(FrameOut), SIG_EVERYWHERE, "", NULL, NULL }, { MAP_CALL(GetHighPlanePri), SIG_EVERYWHERE, "", NULL, NULL }, { MAP_CALL(InPolygon), SIG_EVERYWHERE, "iio", NULL, NULL }, { MAP_CALL(IsHiRes), SIG_EVERYWHERE, "", NULL, NULL }, { MAP_CALL(ListAllTrue), SIG_EVERYWHERE, "li(.*)", NULL, NULL }, { MAP_CALL(ListAt), SIG_EVERYWHERE, "li", NULL, NULL }, { MAP_CALL(ListEachElementDo), SIG_EVERYWHERE, "li(.*)", NULL, NULL }, { MAP_CALL(ListFirstTrue), SIG_EVERYWHERE, "li(.*)", NULL, NULL }, { MAP_CALL(ListIndexOf), SIG_EVERYWHERE, "l[o0]", NULL, NULL }, { MAP_CALL(OnMe), SIG_EVERYWHERE, "iio(.*)", NULL, NULL }, { MAP_CALL(RepaintPlane), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(String), SIG_EVERYWHERE, "(.*)", NULL, NULL }, { MAP_CALL(UpdatePlane), SIG_EVERYWHERE, "o", NULL, NULL }, { MAP_CALL(UpdateScreenItem), SIG_EVERYWHERE, "o", NULL, NULL }, // SCI2.1 Kernel Functions { MAP_CALL(CD), SIG_EVERYWHERE, "(.*)", NULL, NULL }, { MAP_CALL(IsOnMe), SIG_EVERYWHERE, "iio(.*)", NULL, NULL }, { MAP_CALL(List), SIG_EVERYWHERE, "(.*)", NULL, NULL }, { MAP_CALL(MulDiv), SIG_EVERYWHERE, "iii", NULL, NULL }, { MAP_CALL(PlayVMD), SIG_EVERYWHERE, "(.*)", NULL, NULL }, { MAP_CALL(Robot), SIG_EVERYWHERE, "(.*)", NULL, NULL }, { MAP_CALL(Save), SIG_EVERYWHERE, "(.*)", NULL, NULL }, { MAP_CALL(Text), SIG_EVERYWHERE, "(.*)", NULL, NULL }, { NULL, NULL, SIG_EVERYWHERE, NULL, NULL, NULL } #endif }; Kernel::Kernel(ResourceManager *resMan, SegManager *segMan) : _resMan(resMan), _segMan(segMan), _invalid("") { loadSelectorNames(); mapSelectors(); // Map a few special selectors for later use } Kernel::~Kernel() { for (KernelFunctionArray::iterator i = _kernelFuncs.begin(); i != _kernelFuncs.end(); ++i) free(i->signature); } uint Kernel::getSelectorNamesSize() const { return _selectorNames.size(); } const Common::String &Kernel::getSelectorName(uint selector) const { if (selector >= _selectorNames.size()) return _invalid; return _selectorNames[selector]; } uint Kernel::getKernelNamesSize() const { return _kernelNames.size(); } const Common::String &Kernel::getKernelName(uint number) const { // FIXME: The following check is a temporary workaround for an issue // leading to crashes when using the debugger's backtrace command. if (number >= _kernelNames.size()) return _invalid; return _kernelNames[number]; } int Kernel::findSelector(const char *selectorName) const { for (uint pos = 0; pos < _selectorNames.size(); ++pos) { if (_selectorNames[pos] == selectorName) return pos; } debugC(2, kDebugLevelVM, "Could not map '%s' to any selector", selectorName); return -1; } void Kernel::loadSelectorNames() { Resource *r = _resMan->findResource(ResourceId(kResourceTypeVocab, VOCAB_RESOURCE_SELECTORS), 0); bool oldScriptHeader = (getSciVersion() == SCI_VERSION_0_EARLY); if (!r) { // No such resource? // Check if we have a table for this game // Some demos do not have a selector table Common::StringArray staticSelectorTable = checkStaticSelectorNames(); if (staticSelectorTable.empty()) error("Kernel: Could not retrieve selector names"); else warning("No selector vocabulary found, using a static one"); for (uint32 i = 0; i < staticSelectorTable.size(); i++) { _selectorNames.push_back(staticSelectorTable[i]); if (oldScriptHeader) _selectorNames.push_back(staticSelectorTable[i]); } return; } int count = READ_LE_UINT16(r->data) + 1; // Counter is slightly off for (int i = 0; i < count; i++) { int offset = READ_LE_UINT16(r->data + 2 + i * 2); int len = READ_LE_UINT16(r->data + offset); Common::String tmp((const char *)r->data + offset + 2, len); _selectorNames.push_back(tmp); //printf("%s\n", tmp.c_str()); // debug // Early SCI versions used the LSB in the selector ID as a read/write // toggle. To compensate for that, we add every selector name twice. if (oldScriptHeader) _selectorNames.push_back(tmp); } } // this parses a written kernel signature into an internal memory format // [io] -> either integer or object // (io) -> optionally integer AND an object // (i) -> optional integer // . -> any type // i* -> optional multiple integers // .* -> any parameters afterwards (or none) static uint16 *parseKernelSignature(const char *kernelName, const char *writtenSig) { const char *curPos; char curChar; uint16 *result = NULL; uint16 *writePos = NULL; int size = 0; bool validType = false; bool optionalType = false; bool eitherOr = false; bool optional = false; bool hadOptional = false; // First, we check how many bytes the result will be // we also check, if the written signature makes any sense curPos = writtenSig; while (*curPos) { curChar = *curPos; switch (curChar) { case '[': // either or if (eitherOr) error("signature for k%s: '[' used within '[]'", kernelName); eitherOr = true; validType = false; break; case ']': // either or end if (!eitherOr) error("signature for k%s: ']' used without leading '['", kernelName); if (!validType) error("signature for k%s: '[]' does not surround valid type(s)", kernelName); eitherOr = false; validType = false; size++; break; case '(': // optional if (optional) error("signature for k%s: '(' used within '()' brackets", kernelName); if (eitherOr) error("signature for k%s: '(' used within '[]' brackets", kernelName); optional = true; validType = false; optionalType = false; break; case ')': // optional end if (!optional) error("signature for k%s: ')' used without leading '('", kernelName); if (!optionalType) error("signature for k%s: '()' does not to surround valid type(s)", kernelName); optional = false; validType = false; hadOptional = true; break; case '0': // allowed types case 'i': case 'o': case 'r': case 'l': case 'n': case '.': case '!': if ((hadOptional) & (!optional)) error("signature for k%s: non-optional type may not follow optional type", kernelName); validType = true; if (optional) optionalType = true; if (!eitherOr) size++; break; case '*': // accepts more of the same parameter (must be last char) if (!validType) { if ((writtenSig == curPos) || (*(curPos - 1) != ']')) error("signature for k%s: a valid type must be in front of '*'", kernelName); } if (eitherOr) error("signature for k%s: '*' may not be inside '[]'", kernelName); if (optional) { if ((*(curPos + 1) != ')') || (*(curPos + 2) != 0)) error("signature for k%s: '*' may only be used for last type", kernelName); } else { if (*(curPos + 1) != 0) error("signature for k%s: '*' may only be used for last type", kernelName); } break; default: error("signature for k%s: '%c' unknown", kernelName, *curPos); } curPos++; } uint16 signature = 0; // Now we allocate buffer with required size and fill it result = new uint16[size + 1]; writePos = result; curPos = writtenSig; do { curChar = *curPos; if (!eitherOr) { // not within either-or, check if next character forces output switch (curChar) { case 0: case '[': case '(': case ')': case 'i': case 'o': case 'r': case 'l': case 'n': case '.': case '!': // and we also got some signature pending? if (signature) { if (!(signature & SIG_MAYBE_ANY)) error("signature for k%s: invalid ('!') may only get used in combination with a real type", kernelName); if ((signature & SIG_IS_INVALID) && ((signature & SIG_MAYBE_ANY) == (SIG_TYPE_NULL | SIG_TYPE_INTEGER))) error("signature for k%s: invalid ('!') should not be used on exclusive null/integer type", kernelName); if (optional) { signature |= SIG_IS_OPTIONAL; if (curChar != ')') signature |= SIG_NEEDS_MORE; } *writePos = signature; writePos++; signature = 0; } } } switch (curChar) { case '[': // either or eitherOr = true; break; case ']': // either or end eitherOr = false; break; case '(': // optional optional = true; break; case ')': // optional end optional = false; break; case '0': if (signature & SIG_TYPE_NULL) error("signature for k%s: NULL ('0') specified more than once", kernelName); signature |= SIG_TYPE_NULL; break; case 'i': if (signature & SIG_TYPE_INTEGER) error("signature for k%s: integer ('i') specified more than once", kernelName); signature |= SIG_TYPE_INTEGER | SIG_TYPE_NULL; break; case 'o': if (signature & SIG_TYPE_OBJECT) error("signature for k%s: object ('o') specified more than once", kernelName); signature |= SIG_TYPE_OBJECT; break; case 'r': if (signature & SIG_TYPE_REFERENCE) error("signature for k%s: reference ('r') specified more than once", kernelName); signature |= SIG_TYPE_REFERENCE; break; case 'l': if (signature & SIG_TYPE_LIST) error("signature for k%s: list ('l') specified more than once", kernelName); signature |= SIG_TYPE_LIST; break; case 'n': if (signature & SIG_TYPE_NODE) error("signature for k%s: node ('n') specified more than once", kernelName); signature |= SIG_TYPE_NODE; break; case '.': if (signature & SIG_MAYBE_ANY) error("signature for k%s: maybe-any ('.') shouldn't get specified with other types in front of it", kernelName); signature |= SIG_MAYBE_ANY; break; case '!': if (signature & SIG_IS_INVALID) error("signature for k%s: invalid ('!') specified more than once", kernelName); signature |= SIG_IS_INVALID; break; case '*': // accepts more of the same parameter signature |= SIG_MORE_MAY_FOLLOW; break; default: break; } curPos++; } while (curChar); // Write terminator *writePos = 0; return result; } uint16 Kernel::findRegType(reg_t reg) { // No segment? Must be integer if (!reg.segment) return SIG_TYPE_INTEGER | (reg.offset ? 0 : SIG_TYPE_NULL); if (reg.segment == 0xFFFF) return SIG_TYPE_UNINITIALIZED; // Otherwise it's an object SegmentObj *mobj = _segMan->getSegmentObj(reg.segment); if (!mobj) return SIG_TYPE_ERROR; uint16 result = 0; if (!mobj->isValidOffset(reg.offset)) result |= SIG_IS_INVALID; switch (mobj->getType()) { case SEG_TYPE_SCRIPT: if (reg.offset <= (*(Script *)mobj).getBufSize() && reg.offset >= -SCRIPT_OBJECT_MAGIC_OFFSET && RAW_IS_OBJECT((*(Script *)mobj).getBuf(reg.offset)) ) { result |= ((Script *)mobj)->getObject(reg.offset) ? SIG_TYPE_OBJECT : SIG_TYPE_REFERENCE; } else result |= SIG_TYPE_REFERENCE; break; case SEG_TYPE_CLONES: result |= SIG_TYPE_OBJECT; break; case SEG_TYPE_LOCALS: case SEG_TYPE_STACK: case SEG_TYPE_SYS_STRINGS: case SEG_TYPE_DYNMEM: case SEG_TYPE_HUNK: #ifdef ENABLE_SCI32 case SEG_TYPE_ARRAY: case SEG_TYPE_STRING: #endif result |= SIG_TYPE_REFERENCE; break; case SEG_TYPE_LISTS: result |= SIG_TYPE_LIST; break; case SEG_TYPE_NODES: result |= SIG_TYPE_NODE; break; default: return SIG_TYPE_ERROR; } return result; } struct SignatureDebugType { uint16 typeCheck; const char *text; }; static const SignatureDebugType signatureDebugTypeList[] = { { SIG_TYPE_NULL, "null" }, { SIG_TYPE_INTEGER, "integer" }, { SIG_TYPE_UNINITIALIZED, "uninitialized" }, { SIG_TYPE_OBJECT, "object" }, { SIG_TYPE_REFERENCE, "reference" }, { SIG_TYPE_LIST, "list" }, { SIG_TYPE_NODE, "node" }, { SIG_TYPE_ERROR, "error" }, { SIG_IS_INVALID, "invalid" }, { 0, NULL } }; static void kernelSignatureDebugType(const uint16 type) { bool firstPrint = true; const SignatureDebugType *list = signatureDebugTypeList; while (list->typeCheck) { if (type & list->typeCheck) { if (!firstPrint) printf(", "); printf("%s", list->text); firstPrint = false; } list++; } } // Shows kernel call signature and current arguments for debugging purposes void Kernel::signatureDebug(const uint16 *sig, int argc, const reg_t *argv) { int argnr = 0; while (*sig || argc) { printf("parameter %d: ", argnr++); if (argc) { reg_t parameter = *argv; printf("%04x:%04x (", PRINT_REG(parameter)); int regType = findRegType(parameter); if (regType) kernelSignatureDebugType(regType); else printf("unknown type of %04x:%04x", PRINT_REG(parameter)); printf(")"); argv++; argc--; } else { printf("not passed"); } if (*sig) { const uint16 signature = *sig; if ((signature & SIG_MAYBE_ANY) == SIG_MAYBE_ANY) { printf(", may be any"); } else { printf(", should be "); kernelSignatureDebugType(signature); } if (signature & SIG_IS_OPTIONAL) printf(" (optional)"); if (signature & SIG_NEEDS_MORE) printf(" (needs more)"); if (signature & SIG_MORE_MAY_FOLLOW) printf(" (more may follow)"); sig++; } printf("\n"); } } bool Kernel::signatureMatch(const uint16 *sig, int argc, const reg_t *argv) { uint16 nextSig = *sig; uint16 curSig = nextSig; while (nextSig && argc) { curSig = nextSig; int type = findRegType(*argv); if ((type & SIG_IS_INVALID) && (!(curSig & SIG_IS_INVALID))) return false; // pointer is invalid and signature doesn't allow that? if (!((type & ~SIG_IS_INVALID) & curSig)) return false; // type mismatch if (!(curSig & SIG_MORE_MAY_FOLLOW)) { sig++; nextSig = *sig; } else { nextSig |= SIG_IS_OPTIONAL; // more may follow -> assumes followers are optional } argv++; argc--; } // Too many arguments? if (argc) return false; // Signature end reached? if (nextSig == 0) return true; // current parameter is optional? if (curSig & SIG_IS_OPTIONAL) { // yes, check if nothing more is required if (!(curSig & SIG_NEEDS_MORE)) return true; } else { // no, check if next parameter is optional if (nextSig & SIG_IS_OPTIONAL) return true; } // Too few arguments or more optional arguments required return false; } void Kernel::mapFunctions() { int mapped = 0; int ignored = 0; uint functionCount = _kernelNames.size(); byte platformMask = 0; SciVersion myVersion = getSciVersion(); switch (g_sci->getPlatform()) { case Common::kPlatformPC: platformMask = SIGFOR_DOS; break; case Common::kPlatformPC98: platformMask = SIGFOR_PC98; break; case Common::kPlatformWindows: platformMask = SIGFOR_WIN; break; case Common::kPlatformMacintosh: platformMask = SIGFOR_MAC; break; case Common::kPlatformAmiga: platformMask = SIGFOR_AMIGA; break; case Common::kPlatformAtariST: platformMask = SIGFOR_ATARI; break; default: break; } _kernelFuncs.resize(functionCount); for (uint id = 0; id < functionCount; id++) { // First, get the name, if known, of the kernel function with number functnr Common::String kernelName = _kernelNames[id]; // Reset the table entry _kernelFuncs[id].function = NULL; _kernelFuncs[id].signature = NULL; _kernelFuncs[id].name = NULL; _kernelFuncs[id].workarounds = NULL; _kernelFuncs[id].subFunctions = NULL; _kernelFuncs[id].subFunctionCount = 0; _kernelFuncs[id].debugCalls = false; if (kernelName.empty()) { // No name was given -> must be an unknown opcode warning("Kernel function %x unknown", id); continue; } // Don't map dummy functions - they will never be called if (kernelName == "Dummy") { _kernelFuncs[id].function = kDummy; continue; } // If the name is known, look it up in s_kernelMap. This table // maps kernel func names to actual function (pointers). SciKernelMapEntry *kernelMap = s_kernelMap; bool nameMatch = false; while (kernelMap->name) { if (kernelName == kernelMap->name) { if ((kernelMap->fromVersion == SCI_VERSION_NONE) || (kernelMap->fromVersion <= myVersion)) if ((kernelMap->toVersion == SCI_VERSION_NONE) || (kernelMap->toVersion >= myVersion)) if (platformMask & kernelMap->forPlatform) break; nameMatch = true; } kernelMap++; } if (kernelMap->name) { // A match was found _kernelFuncs[id].function = kernelMap->function; _kernelFuncs[id].name = kernelMap->name; _kernelFuncs[id].signature = parseKernelSignature(kernelMap->name, kernelMap->signature); _kernelFuncs[id].workarounds = kernelMap->workarounds; if (kernelMap->subFunctions) { // Get version for subfunction identification SciVersion mySubVersion = (SciVersion)kernelMap->function(NULL, 0, NULL).offset; // Now check whats the highest subfunction-id for this version const SciKernelMapSubEntry *kernelSubMap = kernelMap->subFunctions; uint16 subFunctionCount = 0; while (kernelSubMap->function) { if ((kernelSubMap->fromVersion == SCI_VERSION_NONE) || (kernelSubMap->fromVersion <= mySubVersion)) if ((kernelSubMap->toVersion == SCI_VERSION_NONE) || (kernelSubMap->toVersion >= mySubVersion)) if (subFunctionCount <= kernelSubMap->id) subFunctionCount = kernelSubMap->id + 1; kernelSubMap++; } if (!subFunctionCount) error("k%s[%x]: no subfunctions found for requested version", kernelName.c_str(), id); // Now allocate required memory and go through it again _kernelFuncs[id].subFunctionCount = subFunctionCount; KernelSubFunction *subFunctions = new KernelSubFunction[subFunctionCount]; _kernelFuncs[id].subFunctions = subFunctions; memset(subFunctions, 0, sizeof(KernelSubFunction) * subFunctionCount); // And fill this info out kernelSubMap = kernelMap->subFunctions; uint kernelSubNr = 0; while (kernelSubMap->function) { if ((kernelSubMap->fromVersion == SCI_VERSION_NONE) || (kernelSubMap->fromVersion <= mySubVersion)) if ((kernelSubMap->toVersion == SCI_VERSION_NONE) || (kernelSubMap->toVersion >= mySubVersion)) { uint subId = kernelSubMap->id; subFunctions[subId].function = kernelSubMap->function; subFunctions[subId].name = kernelSubMap->name; subFunctions[subId].workarounds = kernelSubMap->workarounds; if (kernelSubMap->signature) { subFunctions[subId].signature = parseKernelSignature(kernelSubMap->name, kernelSubMap->signature); } else { // we go back the submap to find the previous signature for that kernel call const SciKernelMapSubEntry *kernelSubMapBack = kernelSubMap; uint kernelSubLeft = kernelSubNr; while (kernelSubLeft) { kernelSubLeft--; kernelSubMapBack--; if (kernelSubMapBack->name == kernelSubMap->name) { if (kernelSubMapBack->signature) { subFunctions[subId].signature = parseKernelSignature(kernelSubMap->name, kernelSubMapBack->signature); break; } } } if (!subFunctions[subId].signature) error("k%s: no previous signatures", kernelSubMap->name); } } kernelSubMap++; kernelSubNr++; } } ++mapped; } else { if (nameMatch) error("k%s[%x]: not found for this version/platform", kernelName.c_str(), id); // No match but a name was given -> stub warning("k%s[%x]: unmapped", kernelName.c_str(), id); _kernelFuncs[id].function = kStub; } } // for all functions requesting to be mapped debugC(2, kDebugLevelVM, "Handled %d/%d kernel functions, mapping %d and ignoring %d.", mapped + ignored, _kernelNames.size(), mapped, ignored); return; } void Kernel::setDefaultKernelNames() { _kernelNames = Common::StringArray(s_defaultKernelNames, ARRAYSIZE(s_defaultKernelNames)); // Some (later) SCI versions replaced CanBeHere by CantBeHere if (_selectorCache.cantBeHere != -1) _kernelNames[0x4d] = "CantBeHere"; switch (getSciVersion()) { case SCI_VERSION_0_EARLY: case SCI_VERSION_0_LATE: // Insert SCI0 file functions after SetCursor (0x28) _kernelNames.insert_at(0x29, "FOpen"); _kernelNames.insert_at(0x2A, "FPuts"); _kernelNames.insert_at(0x2B, "FGets"); _kernelNames.insert_at(0x2C, "FClose"); // Function 0x55 is DoAvoider _kernelNames[0x55] = "DoAvoider"; // Cut off unused functions _kernelNames.resize(0x72); break; case SCI_VERSION_01: // Multilingual SCI01 games have StrSplit as function 0x78 _kernelNames[0x78] = "StrSplit"; // Cut off unused functions _kernelNames.resize(0x79); break; case SCI_VERSION_1_LATE: _kernelNames[0x71] = "MoveCursor"; break; case SCI_VERSION_1_1: // In SCI1.1, kSetSynonyms is an empty function _kernelNames[0x26] = "Empty"; if (g_sci->getGameId() == GID_KQ6) { // In the Windows version of KQ6 CD, the empty kSetSynonyms // function has been replaced with kPortrait. In KQ6 Mac, // kPlayBack has been replaced by kShowMovie. if (g_sci->getPlatform() == Common::kPlatformWindows) _kernelNames[0x26] = "Portrait"; else if (g_sci->getPlatform() == Common::kPlatformMacintosh) _kernelNames[0x84] = "ShowMovie"; } else if (g_sci->getGameId() == GID_QFG4 && g_sci->isDemo()) { _kernelNames[0x7b] = "RemapColors"; // QFG4 Demo has this SCI2 function instead of StrSplit } _kernelNames[0x71] = "PalVary"; _kernelNames[0x7c] = "Message"; break; default: // Use default table for the other versions break; } } void Kernel::loadKernelNames(GameFeatures *features) { _kernelNames.clear(); #ifdef ENABLE_SCI32 if (getSciVersion() >= SCI_VERSION_2_1) setKernelNamesSci21(features); else if (getSciVersion() == SCI_VERSION_2) setKernelNamesSci2(); else #endif setDefaultKernelNames(); mapFunctions(); } Common::String Kernel::lookupText(reg_t address, int index) { char *seeker; Resource *textres; if (address.segment) return _segMan->getString(address); int textlen; int _index = index; textres = _resMan->findResource(ResourceId(kResourceTypeText, address.offset), 0); if (!textres) { error("text.%03d not found", address.offset); return NULL; /* Will probably segfault */ } textlen = textres->size; seeker = (char *) textres->data; while (index--) while ((textlen--) && (*seeker++)) ; if (textlen) return seeker; error("Index %d out of bounds in text.%03d", _index, address.offset); return NULL; } } // End of namespace Sci