mirror of
https://github.com/kichikuou/system3-sdl2.git
synced 2026-10-14 01:59:14 +03:00
kichikuou
af69b3cfb3
Switch desktop/emscripten builds from SDL2 to SDL3, applying only the API changes that cannot compile through the SDL_oldnames.h aliases. Pure renames will be swept in a follow-up commit.
308 lines
6.4 KiB
C++
308 lines
6.4 KiB
C++
/*
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ALICE SOFT SYSTEM 3 for Win32
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[ DRI ]
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*/
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#include "dri.h"
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#include <memory>
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#include <string.h>
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#include <SDL3/SDL.h>
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#include "game_id.h"
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#include "fileio.h"
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void Dri::open(const char* file_name)
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{
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link_table.clear();
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fname = file_name;
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auto fio = FILEIO::open(file_name, FILEIO_READ_BINARY);
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if (!fio)
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return;
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int link_sector = fio->getw();
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int data_sector = fio->getw();
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link_table.resize((data_sector - link_sector) * 256);
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fio->seek((link_sector - 1) * 256, SEEK_SET);
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fio->read(link_table.data(), 256 * (data_sector - link_sector));
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}
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std::vector<uint8> Dri::load(int page)
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{
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if (static_cast<size_t>(page) >= link_table.size() / 2)
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return {};
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int disk_index = link_table[(page - 1) * 2];
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int link_index = link_table[(page - 1) * 2 + 1];
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if (disk_index == 0 || disk_index == 0x1a)
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return {};
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fname[0] = 'A' + disk_index - 1;
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auto fio = FILEIO::open(fname.c_str(), FILEIO_READ_BINARY);
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if (!fio)
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return {};
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fio->seek(link_index * 2, SEEK_SET);
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int start_sector = fio->getw();
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int end_sector = fio->getw();
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if (end_sector <= start_sector)
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return {};
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std::vector<uint8_t> buffer((end_sector - start_sector) * 256);
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fio->seek((start_sector - 1) * 256, SEEK_SET);
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fio->read(buffer.data(), 256 * (end_sector - start_sector));
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return buffer;
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}
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// static
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std::vector<uint8> Dri::load_mda(const GameId& game_id, int page)
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{
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// データ取得
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const char* name = NULL;
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switch (game_id.game) {
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case GameId::BUNKASAI:
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name = "AMUS_AB.MDA";
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break;
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case GameId::CRESCENT:
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name = "AMUS_CRS.MDA";
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break;
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case GameId::DPS:
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name = "AMUS_DPS.MDA";
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break;
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case GameId::DPS_SG_FAHREN:
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case GameId::DPS_SG_KATEI:
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case GameId::DPS_SG_NOBUNAGA:
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case GameId::DPS_SG2_ANTIQUE:
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case GameId::DPS_SG2_IKENAI:
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case GameId::DPS_SG2_AKAI:
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case GameId::DPS_SG3_RABBIT:
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case GameId::DPS_SG3_SHINKON:
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case GameId::DPS_SG3_SOTSUGYOU:
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name = "AMUS_SG.MDA";
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break;
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case GameId::FUKEI:
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name = "AMUS_VX.MDA";
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break;
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case GameId::INTRUDER:
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name = "AMUS_INT.MDA";
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break;
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case GameId::TENGU:
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name = "AMUS_AT.MDA";
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break;
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case GameId::TOUSHIN_HINT:
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name = "AMUS_T1.MDA";
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break;
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case GameId::LITTLE_VAMPIRE:
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name = "AMUS_LP2.MDA";
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break;
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case GameId::YAKATA:
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name = "AMUS_AL1.MDA";
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break;
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case GameId::AYUMI_FD:
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case GameId::AYUMI_HINT:
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case GameId::AYUMI_PROTO:
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name = "AMUS_AYM.MDA";
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break;
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case GameId::DALK_HINT:
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name = "AMUS_DLK.MDA";
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break;
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case GameId::DRSTOP:
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name = "AMUS_DRS.MDA";
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break;
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case GameId::PROG_FD:
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name = "AMUS_PSG.MDA";
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break;
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case GameId::RANCE3_HINT:
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name = "AMUS_R3H.MDA";
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break;
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case GameId::SDPS_MARIA:
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case GameId::SDPS_TONO:
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case GameId::SDPS_KAIZOKU:
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name = "AMUS_SDP.MDA";
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break;
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case GameId::YAKATA2:
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name = "AMUS_AL2.MDA";
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break;
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case GameId::AMBIVALENZ_FD:
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case GameId::AMBIVALENZ_CD:
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name = "AMUS_AMB.MDA";
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break;
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case GameId::DPS_ALL:
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name = "AMUS_ALL.MDA";
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break;
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case GameId::FUNNYBEE_CD:
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case GameId::FUNNYBEE_FD:
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name = "AMUS_BEE.MDA";
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break;
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case GameId::ONLYYOU:
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case GameId::ONLYYOU_DEMO:
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name = "AMUS_OY.MDA";
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break;
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case GameId::PROG_CD:
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name = "AMUS_PSG.MDA";
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break;
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case GameId::RANCE4:
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name = "AMUS_R4.MDA";
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break;
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case GameId::RANCE41:
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name = "AMUS_R41.MDA";
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break;
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case GameId::RANCE42:
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name = "AMUS_R42.MDA";
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break;
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case GameId::AYUMI_CD:
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case GameId::AYUMI_LIVE_256:
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case GameId::AYUMI_LIVE_FULL:
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name = "AMUS_AYM.MDA";
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break;
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case GameId::YAKATA3_CD:
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case GameId::YAKATA3_FD:
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name = "AMUS_AL3.MDA";
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break;
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case GameId::HASHIRIONNA2:
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name = "AMUS_RG2.MDA";
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break;
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case GameId::TOUSHIN2_GD:
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name = "AMUS_T2.MDA";
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break;
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case GameId::OTOME:
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name = "AMUS_OTM.MDA";
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break;
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case GameId::MUGEN:
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name = "AMUS_MGN.MDA";
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break;
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case GameId::GAKUEN_KING:
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name = "AMUS_KNG.MDA";
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break;
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}
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if(name == NULL) {
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return {};
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}
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SDL_RWops* rw = open_resource(name, "mda");
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if (!rw)
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return {};
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uint8 buf[4];
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// ページの位置を取得
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SDL_ReadIO(rw, buf, 4);
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int link_sector = buf[0] | (buf[1] << 8);
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int data_sector = buf[2] | (buf[3] << 8);
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if(page > (data_sector - link_sector) * 128 - 1) {
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// ページ番号不正
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SDL_RWclose(rw);
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return {};
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}
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SDL_RWseek(rw, (link_sector - 1) * 256 + (page - 1) * 2, RW_SEEK_SET);
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SDL_ReadIO(rw, buf, 2);
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int disk_index = buf[0];
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int link_index = buf[1];
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if(disk_index == 0 || disk_index == 0x1a) {
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// 欠番
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SDL_RWclose(rw);
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return {};
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}
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// AMUS.MDA以外にリンクされている場合はリソースを開き直す
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if(disk_index == 2) {
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SDL_RWclose(rw);
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switch (game_id.game) {
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case GameId::DPS_SG_FAHREN:
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name = "BMUS_FAH.MDA";
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break;
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case GameId::DPS_SG_KATEI:
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name = "BMUS_KAT.MDA";
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break;
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case GameId::DPS_SG_NOBUNAGA:
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name = "BMUS_NOB.MDA";
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break;
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case GameId::DPS_SG2_ANTIQUE:
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name = "BMUS_ANT.MDA";
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break;
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case GameId::DPS_SG2_IKENAI:
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name = "BMUS_NAI.MDA";
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break;
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case GameId::DPS_SG2_AKAI:
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name = "BMUS_AKA.MDA";
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break;
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case GameId::DPS_SG3_RABBIT:
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name = "BMUS_RAB.MDA";
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break;
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case GameId::DPS_SG3_SHINKON:
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name = "BMUS_SIN.MDA";
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break;
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case GameId::DPS_SG3_SOTSUGYOU:
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name = "BMUS_SOT.MDA";
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break;
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case GameId::SDPS_MARIA:
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name = "BMUS_MTK.MDA";
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break;
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case GameId::SDPS_TONO:
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name = "BMUS_TNM.MDA";
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break;
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case GameId::SDPS_KAIZOKU:
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name = "BMUS_KAM.MDA";
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break;
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default:
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name = NULL;
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break;
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}
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if(name == NULL) {
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return {};
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}
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if((rw = open_resource(name, "mda")) == NULL) {
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return {};
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}
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} else if(disk_index == 3) {
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SDL_RWclose(rw);
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switch (game_id.game) {
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case GameId::TOUSHIN_HINT:
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name = "CMUS_T1.MDA";
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break;
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default:
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name = NULL;
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break;
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}
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if(name == NULL) {
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return {};
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}
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if((rw = open_resource(name, "mda")) == NULL) {
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return {};
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}
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} else if(disk_index != 1) {
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// AMUS.MDA以外にリンクされている場合は失敗
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SDL_RWclose(rw);
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return {};
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}
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// データ取得
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SDL_RWseek(rw, link_index * 2, RW_SEEK_SET);
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SDL_ReadIO(rw, buf, 4);
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int start_sector = buf[0] | (buf[1] << 8);
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int end_sector = buf[2] | (buf[3] << 8);
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int size = (end_sector - start_sector) * 256;
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if (size == 0) {
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// サイズ不正
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SDL_RWclose(rw);
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return {};
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}
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std::vector<uint8_t> buffer(size);
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SDL_RWseek(rw, (start_sector - 1) * 256, RW_SEEK_SET);
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SDL_ReadIO(rw, buffer.data(), size);
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SDL_RWclose(rw);
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return buffer;
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}
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