83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
#include "mga.h"
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#include "acio/icca/icca.h"
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#include "hooks/devicehook.h"
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#include "util/detour.h"
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#include "util/libutils.h"
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#include "util/logging.h"
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#include "util/detour.h"
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#include "util/sigscan.h"
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#include "gunio.h"
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namespace games::mga {
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void (__cdecl *ess_eventlog_request_error_orig)(const char *, unsigned int, int, int);
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static int __cdecl log_change_level_hook(int level) {
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log_misc("mga", "ignoring log_change_level({})", level);
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return 1;
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}
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static uintptr_t __cdecl log_change_output_hook(uintptr_t target, uintptr_t a2) {
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log_misc("mga", "ignoring log_change_output(0x{:x}, 0x{:x})", target, a2);
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return 0;
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}
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static bool __cdecl setvolume_hook(uint8_t volume) {
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log_misc("mga", "ignoring setvolume {}", static_cast<int>(volume));
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return false;
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}
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static void __cdecl ess_eventlog_request_error_hook(const char *a1, unsigned int a2, int a3, int a4) {
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log_info("mga", "ess_eventlog_request_error({}, {}, {}, {})", a1, a2, a3, a4);
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//ess_eventlog_request_error_orig(a1, a2, a3, a4);
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}
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MGAGame::MGAGame() : Game("Metal Gear Arcade") {
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}
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void MGAGame::attach() {
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Game::attach();
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// load system.dll (along with the serial functions)
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auto system = libutils::load_library("system.dll");
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// add the gun
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devicehook_init();
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devicehook_add(new SpiceGearGunHandle());
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// fix ICCA
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acio::ICCA_COMPAT_ACTIVE = true;
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// ignore sound engine failure
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if (!replace_pattern(
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system,
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"E8????????84C0750A68F4010000E8????????E8????????E8????????3BF3750433C0EB0C",
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"??????????????????90909090909090909090????????????????????????????????????",
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0, 0))
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{
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log_warning("mga", "failed to patch sound engine");
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}
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// hook setvolume
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if (!detour::iat_try("?setvolume@@YAHPAD@Z", setvolume_hook)) {
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log_warning("mga", "setvolume hook failed");
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}
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// stop the game from redirecting AVS log calls
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detour::iat_try("log_change_level", log_change_level_hook);
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detour::iat_try("log_change_output", log_change_output_hook);
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ess_eventlog_request_error_orig = detour::iat_try("ess_eventlog_request_error", ess_eventlog_request_error_hook);
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}
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void MGAGame::detach() {
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Game::detach();
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devicehook_dispose();
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}
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}
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