iw7-mod/src/client/component/fastfiles.cpp
2024-01-21 10:55:39 +02:00

273 lines
7.7 KiB
C++

#include <std_include.hpp>
#include "loader/component_loader.hpp"
#include "fastfiles.hpp"
#include "game/game.hpp"
#include "command.hpp"
#include "console/console.hpp"
#include <utils/hook.hpp>
#include <utils/string.hpp>
#include <utils/concurrency.hpp>
#include <utils/io.hpp>
#include <zlib.h>
//#define XFILE_DEBUG
namespace fastfiles
{
static utils::concurrency::container<std::string> current_fastfile;
std::string get_current_fastfile()
{
std::string fastfile_copy;
current_fastfile.access([&](std::string& fastfile)
{
fastfile_copy = fastfile;
});
return fastfile_copy;
}
namespace
{
utils::hook::detour db_try_load_x_file_internal_hook;
utils::hook::detour db_init_load_x_file_hook;
utils::hook::detour db_load_x_zone_hook;
utils::hook::detour db_find_xasset_header_hook;
utils::hook::detour db_add_xasset_hook;
void db_try_load_x_file_internal_stub(const char* zone_name, const unsigned int zone_flags,
const bool is_base_map, const bool was_paused, const int failure_mode)
{
current_fastfile.access([&](std::string& fastfile)
{
fastfile = zone_name;
});
return db_try_load_x_file_internal_hook.invoke<void>(zone_name, zone_flags, is_base_map, was_paused, failure_mode);
}
void db_init_load_x_file_stub(const char* name, std::uint64_t offset)
{
console::info("Loading xfile %s\n", name);
return db_init_load_x_file_hook.invoke<void>(name, offset);
}
void db_load_x_zone_stub(const char* parent_name, const unsigned int zone_flags, const bool is_base_map, const int failure_mode)
{
console::info("Loading zone %s\n", parent_name);
return db_load_x_zone_hook.invoke<void>(parent_name, zone_flags, is_base_map, failure_mode);
}
game::dvar_t* g_dump_scripts;
void dump_gsc_script(const std::string& name, game::XAssetHeader header)
{
if (!g_dump_scripts->current.enabled)
{
return;
}
std::string buffer;
buffer.append(header.scriptfile->name, strlen(header.scriptfile->name) + 1);
buffer.append(reinterpret_cast<char*>(&header.scriptfile->compressedLen), 4);
buffer.append(reinterpret_cast<char*>(&header.scriptfile->len), 4);
buffer.append(reinterpret_cast<char*>(&header.scriptfile->bytecodeLen), 4);
buffer.append(header.scriptfile->buffer, header.scriptfile->compressedLen);
buffer.append(header.scriptfile->bytecode, header.scriptfile->bytecodeLen);
const auto out_name = utils::string::va("gsc_dump/%s.gscbin", name.data());
utils::io::write_file(out_name, buffer);
console::info("Dumped %s\n", out_name);
}
game::XAssetHeader db_find_xasset_header_stub(game::XAssetType type, const char* name, const int allow_create_default)
{
auto result = db_find_xasset_header_hook.invoke<game::XAssetHeader>(type, name, allow_create_default);
if (!result.data && type != game::ASSET_TYPE_LOCALIZE_ENTRY)
{
console::error("Error: Could not find %s \"%s\"\n",
game::g_assetNames[static_cast<unsigned int>(type)],
name);
}
return result;
}
game::XAssetHeader db_add_xasset_stub(game::XAssetType type, game::XAssetHeader* header_ptr)
{
auto header = *header_ptr;
if (type == game::ASSET_TYPE_SCRIPTFILE && header.scriptfile)
{
dump_gsc_script(header.scriptfile->name ? header.scriptfile->name : "__unnamed__", header);
}
auto result = db_add_xasset_hook.invoke<game::XAssetHeader>(type, header_ptr);
return result;
}
}
namespace zone_loading
{
utils::hook::detour db_is_patch_hook;
bool check_missing_content_func(const char* zone_name)
{
const char* lang_code = game::SEH_GetCurrentLanguageCode();
char buffer[0x100]{ 0 };
const auto len = sprintf_s(buffer, "%s_", lang_code);
if (!strncmp(zone_name, buffer, len))
{
printf("Tried to load missing language zone: %s\n", zone_name);
return true;
}
return false;
}
bool db_is_patch_stub(const char* name)
{
if (db_is_patch_hook.invoke<bool>(name)) return true;
if (check_missing_content_func(name)) return true;
return false;
}
void skip_extra_zones_stub(utils::hook::assembler& a)
{
const auto skip = a.newLabel();
const auto original = a.newLabel();
//a.pushad64();
a.test(edi, game::DB_ZONE_CUSTOM); // allocFlags
a.jnz(skip);
a.bind(original);
//a.popad64();
a.call(0x3BC450_b); // strnicmp_ffotd
a.mov(r12d, edi);
a.mov(rdx, 0x1467970_b); // "patch_"
a.jmp(0x3BA9C0_b);
a.bind(skip);
//a.popad64();
a.mov(r12d, game::DB_ZONE_CUSTOM);
a.not_(r12d);
a.and_(edi, r12d);
a.jmp(0x3BAC06_b);
}
}
using namespace zone_loading;
bool exists(const std::string& zone)
{
const auto is_localized = game::DB_IsLocalized(zone.data());
const auto handle = game::Sys_CreateFile((is_localized ? game::SF_ZONE_LOC : game::SF_ZONE),
utils::string::va("%s.ff", zone.data()));
if (handle != INVALID_HANDLE_VALUE)
{
CloseHandle(handle);
return true;
}
return false;
}
class component final : public component_interface
{
public:
void post_unpack() override
{
db_try_load_x_file_internal_hook.create(0x3BBC40_b, db_try_load_x_file_internal_stub);
#if defined(DEBUG) and defined(XFILE_DEBUG)
db_init_load_x_file_hook.create(0x9E8D10_b, db_init_load_x_file_stub);
#else
db_load_x_zone_hook.create(0x3BA920_b, db_load_x_zone_stub);
#endif
db_find_xasset_header_hook.create(game::DB_FindXAssetHeader, db_find_xasset_header_stub);
db_add_xasset_hook.create(0xA76520_b, db_add_xasset_stub);
g_dump_scripts = game::Dvar_RegisterBool("g_dumpScripts", false, game::DVAR_FLAG_NONE, "Dump GSC scripts");
// Don't fatal on certain missing zones
db_is_patch_hook.create(0x3BC580_b, db_is_patch_stub);
// Don't load extra zones with loadzone
utils::hook::nop(0x3BA9B1_b, 15);
utils::hook::jump(0x3BA9B1_b, utils::hook::assemble(skip_extra_zones_stub), true);
// Allow loading of unsigned fastfiles
utils::hook::set<uint8_t>(0x9E8CAE_b, 0xEB); // DB_InflateInit
// Skip signature validation
utils::hook::set(0x9E6390_b, 0xC301B0);
command::add("loadzone", [](const command::params& params)
{
if (params.size() < 2)
{
console::info("usage: loadzone <zone>\n");
return;
}
const char* name = params.get(1);
if (!fastfiles::exists(name))
{
console::warn("loadzone: zone %s could not be found!\n", name);
return;
}
game::XZoneInfo info{};
info.name = name;
info.allocFlags = game::DB_ZONE_GAME;
info.allocFlags |= game::DB_ZONE_CUSTOM; // skip extra zones with this flag
game::DB_LoadXAssets(&info, 1, game::DBSyncMode::DB_LOAD_ASYNC);
});
command::add("listassetpool", [](const command::params& params)
{
if (params.size() < 2)
{
console::info("listassetpool <poolnumber> [filter]: list all the assets in the specified pool\n");
for (auto i = 0; i < game::XAssetType::ASSET_TYPE_COUNT; i++)
{
console::info("%d %s\n", i, game::g_assetNames[i]);
}
return;
}
const auto type = static_cast<game::XAssetType>(atoi(params.get(1)));
if (type < 0 || type >= game::XAssetType::ASSET_TYPE_COUNT)
{
console::error("Invalid pool passed must be between [%d, %d]\n", 0, game::XAssetType::ASSET_TYPE_COUNT - 1);
return;
}
console::info("Listing assets in pool %s\n", game::g_assetNames[type]);
const std::string filter = params.get(2);
game::DB_EnumXAssets(type, [type, filter](const game::XAssetHeader header)
{
const game::XAsset asset{ type, header };
const auto* const asset_name = game::DB_GetXAssetName(&asset);
if (!filter.empty() && !utils::string::match_compare(filter, asset_name, false))
{
return;
}
console::info("%s\n", asset_name);
});
});
}
};
}
REGISTER_COMPONENT(fastfiles::component)