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bsnes-hd/bsnes/target-bsnes/program/hacks.cpp
DerKoun f1a45ff0a1 beta 10.4
2021-02-20 00:03:31 +01:00

223 lines
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auto Program::hackCompatibility() -> void {
string entropy = settings.emulator.hack.entropy;
bool fastJoypadPolling = false;
bool fastPPU = settings.emulator.hack.ppu.fast;
bool fastPPUNoSpriteLimit = settings.emulator.hack.ppu.noSpriteLimit;
bool fastDSP = settings.emulator.hack.dsp.fast;
bool coprocessorDelayedSync = settings.emulator.hack.coprocessor.delayedSync;
uint renderCycle = 512;
auto title = superFamicom.title;
auto region = superFamicom.region;
//sometimes menu options are skipped over in the main menu with cycle-based joypad polling
if(title == "Arcades Greatest Hits") fastJoypadPolling = true;
//the start button doesn't work in this game with cycle-based joypad polling
if(title == "TAIKYOKU-IGO Goliath") fastJoypadPolling = true;
//holding up or down on the menu quickly cycles through options instead of stopping after each button press
if(title == "WORLD MASTERS GOLF") fastJoypadPolling = true;
//relies on mid-scanline rendering techniques
if(title == "AIR STRIKE PATROL" || title == "DESERT FIGHTER") fastPPU = false;
//the dialogue text is blurry due to an issue in the scanline-based renderer's color math support
if(title == "マーヴェラス") fastPPU = false;
//stage 2 uses pseudo-hires in a way that's not compatible with the scanline-based renderer
if(title == "SFC クレヨンシンチャン") fastPPU = false;
//title screen game select (after choosing a game) changes OAM tiledata address mid-frame
//this is only supported by the cycle-based PPU renderer
if(title == "Winter olympics") fastPPU = false;
//title screen shows remnants of the flag after choosing a language with the scanline-based renderer
if(title == "WORLD CUP STRIKER") fastPPU = false;
//relies on cycle-accurate writes to the echo buffer
if(title == "KOUSHIEN_2") fastDSP = false;
//will hang immediately
if(title == "RENDERING RANGER R2") fastDSP = false;
//will hang sometimes in the "Bach in Time" stage
if(title == "BUBSY II" && region == "PAL") fastDSP = false;
//fixes an errant scanline on the title screen due to writing to PPU registers too late
if(title == "ADVENTURES OF FRANKEN" && region == "PAL") renderCycle = 32;
//fixes an errant scanline on the title screen due to writing to PPU registers too late
if(title == "FIREPOWER 2000" || title == "SUPER SWIV") renderCycle = 32;
//fixes an errant scanline on the title screen due to writing to PPU registers too late
if(title == "NHL '94" || title == "NHL PROHOCKEY'94") renderCycle = 32;
//fixes an errant scanline on the title screen due to writing to PPU registers too late
if(title == "Sugoro Quest++") renderCycle = 128;
if(settings.emulator.hack.hotfixes) {
//this game transfers uninitialized memory into video RAM: this can cause a row of invalid tiles
//to appear in the background of stage 12. this one is a bug in the original game, so only enable
//it if the hotfixes option has been enabled.
if(title == "The Hurricanes") entropy = "None";
//Frisky Tom attract sequence sometimes hangs when WRAM is initialized to pseudo-random patterns
if(title == "ニチブツ・アーケード・クラシックス") entropy = "None";
}
emulator->configure("Hacks/Entropy", entropy);
emulator->configure("Hacks/CPU/FastJoypadPolling", fastJoypadPolling);
emulator->configure("Hacks/PPU/Fast", fastPPU);
emulator->configure("Hacks/PPU/NoSpriteLimit", fastPPUNoSpriteLimit);
emulator->configure("Hacks/PPU/RenderCycle", renderCycle);
emulator->configure("Hacks/PPU/Mode7/Scale", settings.emulator.hack.ppu.mode7.scale);
emulator->configure("Hacks/PPU/Mode7/Perspective", settings.emulator.hack.ppu.mode7.perspective);
emulator->configure("Hacks/PPU/Mode7/Widescreen", settings.emulator.hack.ppu.mode7.widescreen);
emulator->configure("Hacks/PPU/Mode7/Wsbg1", settings.emulator.hack.ppu.mode7.wsbg1);
emulator->configure("Hacks/PPU/Mode7/Wsbg2", settings.emulator.hack.ppu.mode7.wsbg2);
emulator->configure("Hacks/PPU/Mode7/Wsbg3", settings.emulator.hack.ppu.mode7.wsbg3);
emulator->configure("Hacks/PPU/Mode7/Wsbg4", settings.emulator.hack.ppu.mode7.wsbg4);
emulator->configure("Hacks/PPU/Mode7/Wsobj", settings.emulator.hack.ppu.mode7.wsobj);
emulator->configure("Hacks/PPU/Mode7/Igwin", settings.emulator.hack.ppu.mode7.igwin);
emulator->configure("Hacks/PPU/Mode7/Igwinx", settings.emulator.hack.ppu.mode7.igwinx);
emulator->configure("Hacks/PPU/Mode7/Strwin", false);
emulator->configure("Hacks/PPU/Mode7/BgGrad", settings.emulator.hack.ppu.mode7.bgGrad);
emulator->configure("Hacks/PPU/Mode7/WindRad", settings.emulator.hack.ppu.mode7.windRad);
emulator->configure("Hacks/PPU/Mode7/WsMode", settings.emulator.hack.ppu.mode7.wsMode);
emulator->configure("Hacks/PPU/Mode7/WsBgCol", settings.emulator.hack.ppu.mode7.wsBgCol);
emulator->configure("Hacks/PPU/Mode7/WsMarker", settings.emulator.hack.ppu.mode7.wsMarker);
emulator->configure("Hacks/PPU/Mode7/WsMarkerAlpha", settings.emulator.hack.ppu.mode7.wsMarkerAlpha);
emulator->configure("Hacks/PPU/Mode7/Supersample", settings.emulator.hack.ppu.mode7.supersample);
emulator->configure("Hacks/PPU/Mode7/Mosaic", settings.emulator.hack.ppu.mode7.mosaic);
emulator->configure("Hacks/DSP/Fast", fastDSP);
emulator->configure("Hacks/DSP/Cubic", settings.emulator.hack.dsp.cubic);
emulator->configure("Hacks/Coprocessor/DelayedSync", coprocessorDelayedSync);
if(rso) {
int i = 0;
int v = 0;
int c = -1;
int n = 0;
bool e = true;
while (i < rso.size()) {
v = rso[i++];
if (v == '%') {
e = !e;
}
if (!e) {
continue;
}
if ((v >= 'a' && v <= 'z') || (v >= 'A' && v <= 'Z')) {
c = v;
} else if (c > -1 && v >= '0' && v <= '9') {
n = (n * 10) + (v - '0');
if (i == rso.size() || rso[i] < '0' || rso[i] > '9') {
switch (c) {
case 'p': //pixelAspectCorrect 0:off 1:on
emulator->configure("Video/AspectCorrection", n == 1);
break;
case 'o': //overscan 0:216 1:224 (2:240 3:240f)
emulator->configure("Video/Overscan", n == 1);
break;
case 'w': //widescreenMode 0:none 1:on 2:mode7
emulator->configure("Hacks/PPU/Mode7/WsMode", n == 1 ? 2 : (n == 2 ? 1 : 0));
break;
case 'W': //WSaspectRatio int [<=200:wsExt, >200:ar]
emulator->configure("Hacks/PPU/Mode7/Widescreen", n);
break;
case 's': //WSsprites 0:safe 1:unsafe 2:clip
emulator->configure("Hacks/PPU/Mode7/Wsobj", n == 1 ? 1 : (n == 2 ? 3 : 0));
break;
case 'i': //igwin 0:none 1:outside 2:outside&always 3:all
emulator->configure("Hacks/PPU/Mode7/Igwin", n > 3 ? 0 : n);
break;
case 'I': //igwinx int
emulator->configure("Hacks/PPU/Mode7/Igwinx", n > 255 ? 128 : n);
break;
case 'b': //bg1WS 0:off 1:on 2:auto(h+v)
emulator->configure("Hacks/PPU/Mode7/Wsbg1",
n >= 1000 ? n : //above/below line (processed later)
(n == 1 ? 1 : //on
(n == 2 ? 16 : //auto H+V
(n == 3 ? 15 : //auto H
(n == 10 ? 12 : //crop
(n == 11 ? 13 : //crop auto
(n == 20 ? 14 : //disable
0)))))) //off
);
break;
case 'B': //bg2WS 0:off 1:on 2:auto(h+v)
emulator->configure("Hacks/PPU/Mode7/Wsbg2",
n >= 1000 ? n : //above/below line (processed later)
(n == 1 ? 1 : //on
(n == 2 ? 16 : //auto H+V
(n == 3 ? 15 : //auto H
(n == 10 ? 12 : //crop
(n == 11 ? 13 : //crop auto
(n == 20 ? 14 : //disable
0)))))) //off
);
break;
case 'c': //bg3WS 0:off 1:on 2:auto(h+v)
emulator->configure("Hacks/PPU/Mode7/Wsbg3",
n >= 1000 ? n : //above/below line (processed later)
(n == 1 ? 1 : //on
(n == 2 ? 16 : //auto H+V
(n == 3 ? 15 : //auto H
(n == 10 ? 12 : //crop
(n == 11 ? 13 : //crop auto
(n == 20 ? 14 : //disable
0)))))) //off
);
break;
case 'C': //bg4WS 0:off 1:on 2:auto(h+v)
emulator->configure("Hacks/PPU/Mode7/Wsbg4",
n >= 1000 ? n : //above/below line (processed later)
(n == 1 ? 1 : //on
(n == 2 ? 16 : //auto H+V
(n == 3 ? 15 : //auto H
(n == 10 ? 12 : //crop
(n == 11 ? 13 : //crop auto
(n == 20 ? 14 : //disable
0)))))) //off
);
break;
case 'm': //wsMarker 0:off 1-10:lines 11-20:darken, wsMarkerAlpha 1-10/11-20:opaque-transparent
emulator->configure("Hacks/PPU/Mode7/WsMarker", n < 1 || n > 20 ? 0 : (n - 1) / 10 + 1);
emulator->configure("Hacks/PPU/Mode7/WsMarkerAlpha", (n - 1) % 10 + 1);
break;
case 'P': //Perspective 0:off 1-3:auto 4-6+:on (wide, medium, narrow)
emulator->configure("Hacks/PPU/Mode7/Perspective", n < 1 || n > 6 ? 0 : n );
break;
case 'O': //Overlock CPU percentage
emulator->configure("Hacks/CPU/Overclock", n );
break;
case 'S': //Stretch Window [EXPERIMENTAL!! DO NOT USE!!]
emulator->configure("Hacks/PPU/Mode7/Strwin", n == 2 );
break;
}
c = -1;
n = 0;
}
}
}
}
}
auto Program::hackPatchMemory(vector<uint8_t>& data) -> void {
auto title = superFamicom.title;
if(title == "Satellaview BS-X" && data.size() >= 0x100000) {
//BS-X: Sore wa Namae o Nusumareta Machi no Monogatari (JPN) (1.1)
//disable limited play check for BS Memory flash cartridges
//benefit: allow locked out BS Memory flash games to play without manual header patching
//detriment: BS Memory ROM cartridges will cause the game to hang in the load menu
if(data[0x4a9b] == 0x10) data[0x4a9b] = 0x80;
if(data[0x4d6d] == 0x10) data[0x4d6d] = 0x80;
if(data[0x4ded] == 0x10) data[0x4ded] = 0x80;
if(data[0x4e9a] == 0x10) data[0x4e9a] = 0x80;
}
}
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