diff options
Diffstat (limited to 'src/lib/formats/fs_prodos.cpp')
-rw-r--r-- | src/lib/formats/fs_prodos.cpp | 350 |
1 files changed, 338 insertions, 12 deletions
diff --git a/src/lib/formats/fs_prodos.cpp b/src/lib/formats/fs_prodos.cpp index e2908f6cebd..a5a6b11eea3 100644 --- a/src/lib/formats/fs_prodos.cpp +++ b/src/lib/formats/fs_prodos.cpp @@ -7,6 +7,19 @@ #include "fs_prodos.h" #include "ap_dsk35.h" + +const fs_prodos FS_PRODOS; + +const char *fs_prodos::name() const +{ + return "prodos"; +} + +const char *fs_prodos::description() const +{ + return "Apple ProDOS"; +} + const u8 fs_prodos::impl::boot[512] = { 0x01, 0x38, 0xb0, 0x03, 0x4c, 0x1c, 0x09, 0x78, 0x86, 0x43, 0xc9, 0x03, 0x08, 0x8a, 0x29, 0x70, 0x4a, 0x4a, 0x4a, 0x4a, 0x09, 0xc0, 0x85, 0x49, 0xa0, 0xff, 0x84, 0x48, 0x28, 0xc8, 0xb1, 0x48, @@ -45,9 +58,9 @@ const u8 fs_prodos::impl::boot[512] = { void fs_prodos::enumerate_f(floppy_enumerator &fe, uint32_t form_factor, const std::vector<uint32_t> &variants) const { if(has(form_factor, variants, floppy_image::FF_35, floppy_image::DSDD)) - fe.add(this, FLOPPY_APPLE_GCR_FORMAT, 819200, "prodos_800k", "Apple ProDOS 800K"); + fe.add(FLOPPY_APPLE_GCR_FORMAT, 819200, "prodos_800k", "Apple ProDOS 800K"); if(has(form_factor, variants, floppy_image::FF_35, floppy_image::SSDD)) - fe.add(this, FLOPPY_APPLE_GCR_FORMAT, 409600, "prodos_400k", "Apple ProDOS 400K"); + fe.add(FLOPPY_APPLE_GCR_FORMAT, 409600, "prodos_400k", "Apple ProDOS 400K"); } std::unique_ptr<filesystem_t> fs_prodos::mount(fsblk_t &blockdev) const @@ -62,7 +75,7 @@ bool fs_prodos::can_format() const bool fs_prodos::can_read() const { - return false; + return true; } bool fs_prodos::can_write() const @@ -70,36 +83,66 @@ bool fs_prodos::can_write() const return false; } -bool fs_prodos::has_subdirectories() const +bool fs_prodos::has_rsrc() const { return true; } +char fs_prodos::directory_separator() const +{ + return '/'; +} + std::vector<fs_meta_description> fs_prodos::volume_meta_description() const { std::vector<fs_meta_description> res; - res.emplace_back(fs_meta_description(fs_meta_name::name, fs_meta_type::string, "UNTITLED", false, [](const fs_meta &m) { std::string n = std::get<std::string>(m); return n.size() <= 15; }, "Volume name, up to 15 characters")); + res.emplace_back(fs_meta_description(fs_meta_name::name, fs_meta_type::string, "UNTITLED", false, [](const fs_meta &m) { return m.as_string().size() <= 15; }, "Volume name, up to 15 characters")); + res.emplace_back(fs_meta_description(fs_meta_name::os_version, fs_meta_type::number, 5, false, [](const fs_meta &m) { return m.as_number() <= 255; }, "Creator OS version")); + res.emplace_back(fs_meta_description(fs_meta_name::os_minimum_version, fs_meta_type::number, 5, false, [](const fs_meta &m) { return m.as_number() <= 255; }, "Minimum OS version")); + auto now = util::arbitrary_datetime::now(); + res.emplace_back(fs_meta_description(fs_meta_name::creation_date, fs_meta_type::date, now, false, nullptr, "Creation time")); + res.emplace_back(fs_meta_description(fs_meta_name::modification_date, fs_meta_type::date, now, false, nullptr, "Modification time")); return res; } std::vector<fs_meta_description> fs_prodos::file_meta_description() const { std::vector<fs_meta_description> res; + res.emplace_back(fs_meta_description(fs_meta_name::name, fs_meta_type::string, "Empty file", false, [](const fs_meta &m) { return m.as_string().size() <= 15; }, "File name, up to 15 characters")); + res.emplace_back(fs_meta_description(fs_meta_name::length, fs_meta_type::number, 0, true, nullptr, "Size of the file in bytes")); + res.emplace_back(fs_meta_description(fs_meta_name::rsrc_length, fs_meta_type::number, 0, true, nullptr, "Size of the resource fork in bytes")); + res.emplace_back(fs_meta_description(fs_meta_name::os_version, fs_meta_type::number, 5, false, [](const fs_meta &m) { return m.as_number() <= 255; }, "Creator OS version")); + res.emplace_back(fs_meta_description(fs_meta_name::os_minimum_version, fs_meta_type::number, 5, false, [](const fs_meta &m) { return m.as_number() <= 255; }, "Minimum OS version")); + + auto now = util::arbitrary_datetime::now(); + res.emplace_back(fs_meta_description(fs_meta_name::creation_date, fs_meta_type::date, now, false, nullptr, "Creation time")); + res.emplace_back(fs_meta_description(fs_meta_name::modification_date, fs_meta_type::date, now, false, nullptr, "Modification time")); return res; } std::vector<fs_meta_description> fs_prodos::directory_meta_description() const { std::vector<fs_meta_description> res; + res.emplace_back(fs_meta_description(fs_meta_name::name, fs_meta_type::string, "Empty directory", false, [](const fs_meta &m) { return m.as_string().size() <= 15; }, "Directory name, up to 15 characters")); + res.emplace_back(fs_meta_description(fs_meta_name::os_version, fs_meta_type::number, 5, false, [](const fs_meta &m) { return m.as_number() <= 255; }, "Creator OS version")); + res.emplace_back(fs_meta_description(fs_meta_name::os_minimum_version, fs_meta_type::number, 5, false, [](const fs_meta &m) { return m.as_number() <= 255; }, "Minimum OS version")); + + auto now = util::arbitrary_datetime::now(); + res.emplace_back(fs_meta_description(fs_meta_name::creation_date, fs_meta_type::date, now, false, nullptr, "Creation time")); + res.emplace_back(fs_meta_description(fs_meta_name::modification_date, fs_meta_type::date, now, false, nullptr, "Modification time")); return res; } void fs_prodos::impl::format(const fs_meta_data &meta) { - std::string volume_name = std::get<std::string>(meta.find(fs_meta_name::name)->second); + std::string volume_name = meta.get_string(fs_meta_name::name, "UNTITLED"); u32 blocks = m_blockdev.block_count(); + // Maximum usable partition size = 32M - 512 bytes (65535 blocks) + if(blocks >= 0x10000) + blocks = 0xffff; + m_blockdev.get(0).copy(0x000, boot, 0x200); // Standard ProDOS boot sector as written by a 2gs m_blockdev.get(1).fill(0x00); // No SOS boot sector @@ -131,11 +174,294 @@ void fs_prodos::impl::format(const fs_meta_data &meta) kblk4.w16l(0x00, 0x0004); // Backwards block pointer of the fourth volume block kblk4.w16l(0x02, 0x0000); // Forwards block pointer of the fourth volume block (null) - auto fmap = m_blockdev.get(6); - u8 *fdata = fmap.data(); - // Mark blocks 7 to max as free - for(u32 i = 7; i != blocks; i++) - fdata[i >> 3] |= 0x80 >> (i & 7); + u32 fmap_block_count = (blocks + 4095) / 4096; + u32 first_free_block = 6 + fmap_block_count; + + // Mark blocks from first_free_block to blocks-1 (the last one) as free + for(u32 i = 0; i != fmap_block_count; i++) { + auto fmap = m_blockdev.get(6 + i); + u8 *fdata = fmap.data(); + u32 start = i ? 0 : first_free_block; + u32 end = i != fmap_block_count - 1 ? 4095 : (blocks - 1) & 4095; + end += 1; + u32 sb = start >> 3; + u32 si = start & 7; + u32 eb = end >> 3; + u32 ei = end & 7; + if(sb == eb) + fdata[sb] = (0xff >> si) & ~(0xff >> ei); + else { + fdata[sb] = 0xff >> si; + if(eb != 512) + fdata[eb] = ~(0xff >> ei); + if(eb - sb > 1) + memset(fdata+sb, 0xff, eb-sb-1); + } + } +} + +fs_prodos::impl::impl(fsblk_t &blockdev) : filesystem_t(blockdev, 512), m_root(true) +{ +} + +util::arbitrary_datetime fs_prodos::impl::prodos_to_dt(u32 date) +{ + util::arbitrary_datetime dt; + dt.second = 0; + dt.minute = ((date >> 16) & 0x3f); + dt.hour = ((date >> 24) & 0x1f); + dt.day_of_month = ((date >> 0) & 0x1f); + dt.month = ((date >> 5) & 0x0f) + 1; + dt.year = ((date >> 9) & 0x7f) + 1900; + if (dt.year <= 1949) + dt.year += 100; + + return dt; +} + +fs_meta_data fs_prodos::impl::metadata() +{ + fs_meta_data res; + auto bdir = m_blockdev.get(2); + int len = bdir.r8(0x04) & 0xf; + res.set(fs_meta_name::name, bdir.rstr(0x05, len)); + res.set(fs_meta_name::os_version, bdir.r8(0x20)); + res.set(fs_meta_name::os_minimum_version, bdir.r8(0x21)); + res.set(fs_meta_name::creation_date, prodos_to_dt(bdir.r32l(0x1c))); + res.set(fs_meta_name::modification_date, prodos_to_dt(bdir.r32l(0x16))); + return res; +} + +filesystem_t::dir_t fs_prodos::impl::root() +{ + if(!m_root) + m_root = new root_dir(*this, 2); + return m_root.strong(); +} + +void fs_prodos::impl::drop_root_ref() +{ + m_root = nullptr; +} + + +void fs_prodos::impl::root_dir::drop_weak_references() +{ + if(m_base_block == 2) + m_fs.drop_root_ref(); +} + +fs_meta_data fs_prodos::impl::root_dir::metadata() +{ + return fs_meta_data(); +} + +std::vector<fs_dir_entry> fs_prodos::impl::root_dir::contents() +{ + std::vector<fs_dir_entry> res; + + u16 block = m_base_block; + u32 off = 39 + 4; + u32 id = 1; + do { + auto blk = m_fs.m_blockdev.get(block); + while(off < 511) { + u8 type = blk.r8(off); + auto name = blk.rstr(off+1, type & 0xf); + type >>= 4; + if(type == 0xd) + res.emplace_back(fs_dir_entry(name, fs_dir_entry_type::dir, id)); + else if(type != 0) + res.emplace_back(fs_dir_entry(name, fs_dir_entry_type::file, id)); + off += 39; + id ++; + } + block = blk.r16l(2); + if(block >= m_fs.m_blockdev.block_count()) + break; + off = 4; + } while(block); + return res; +} + + +std::pair<fsblk_t::block_t, const u8 *> fs_prodos::impl::root_dir::get_entry_ro(uint64_t key) +{ + std::pair<fsblk_t::block_t, const u8 *> res; + res.first = m_fs.m_blockdev.get(m_base_block); + while(key >= 13) { + key -= 13; + u16 block = res.first.r16l(2); + if(!block || block >= m_fs.m_blockdev.block_count()) { + res.first = nullptr; + res.second = nullptr; + return res; + } + res.first = m_fs.m_blockdev.get(block); + } + res.second = res.first.rodata() + 4 + 39 * key; + return res; +} + +std::pair<fsblk_t::block_t, u8 *> fs_prodos::impl::root_dir::get_entry(uint64_t key) +{ + std::pair<fsblk_t::block_t, u8 *> res; + res.first = m_fs.m_blockdev.get(m_base_block); + while(key > 13) { + key -= 13; + u16 block = res.first.r16l(2); + if(!block || block >= m_fs.m_blockdev.block_count()) { + res.first = nullptr; + res.second = nullptr; + return res; + } + res.first = m_fs.m_blockdev.get(block); + } + res.second = res.first.data() + 4 + 39 * key; + return res; +} + +filesystem_t::file_t fs_prodos::impl::root_dir::file_get(uint64_t key) +{ + auto [blk, entry] = get_entry_ro(key); + if(!blk) + fatalerror("Out-of-range key on file_get\n"); + u8 type = entry[0] >> 4; + if(type == 0 || type == 4 || type > 5) + fatalerror("Unhandled file type %x\n", type); + return new file(m_fs, entry, key, this); +} + +filesystem_t::dir_t fs_prodos::impl::root_dir::dir_get(uint64_t key) +{ + auto [blk, entry] = get_entry_ro(key); + if(!blk) + fatalerror("Out-of-range key on dir_get\n"); + u8 type = entry[0] >> 4; + if(type != 0xd) + fatalerror("Unhandled directory type %x\n", type); + + return new dir(m_fs, entry, r16l(entry+0x11), key, this); +} + +fs_prodos::impl::dir::dir(impl &fs, const u8 *entry, u16 base_block, u16 key, root_dir *parent_dir) : root_dir(fs, base_block), m_parent_dir(parent_dir), m_key(key) +{ + memcpy(m_entry, entry, 39); + (void)m_key; + (void)m_parent_dir; +} + +fs_prodos::impl::file::file(impl &fs, const u8 *entry, u16 key, root_dir *parent_dir) : m_fs(fs), m_parent_dir(parent_dir), m_key(key) +{ + memcpy(m_entry, entry, 39); + (void)m_key; + (void)m_parent_dir; +} + +void fs_prodos::impl::file::drop_weak_references() +{ +} + +fs_meta_data fs_prodos::impl::file::metadata() +{ + fs_meta_data res; + u8 type = r8(m_entry); + std::string name = rstr(m_entry+1, type & 0xf); + type >>= 4; + res.set(fs_meta_name::name, name); + if(type == 5) { + auto rootblk = m_fs.m_blockdev.get(r16l(m_entry+0x11)); + res.set(fs_meta_name::length, rootblk.r24l(0x005)); + res.set(fs_meta_name::rsrc_length, rootblk.r24l(0x105)); + + } else if(type >= 1 && type <= 3) + res.set(fs_meta_name::length, r24l(m_entry + 0x15)); + + else + fatalerror("fs_prodos::impl::file::metadata: Unhandled file type %d\n", type); + + return res; } -const filesystem_manager_type FS_PRODOS = &filesystem_manager_creator<fs_prodos>;; +fs_meta_data fs_prodos::impl::dir::metadata() +{ + fs_meta_data res; + u8 type = r8(m_entry); + std::string name = rstr(m_entry+1, type & 0xf); + res.set(fs_meta_name::name, name); + + return res; +} + +std::vector<u8> fs_prodos::impl::file::any_read_all(uint8_t type, u16 block, u32 length) +{ + std::vector<u8> data((length + 511) & ~511); + u32 nb = data.size()/512; + if(!nb) + return data; + + u8 *dst = data.data(); + u8 *end = dst + data.size(); + switch(type) { + case 1: + memcpy(dst, m_fs.m_blockdev.get(block).rodata(), 512); + dst += 512; + break; + + case 2: { + auto iblk = m_fs.m_blockdev.get(block); + for(u32 i=0; i != 256 && dst != end; i++) { + u16 blk = iblk.r8(i) | (iblk.r8(i | 0x100) << 8); + memcpy(dst, m_fs.m_blockdev.get(blk).rodata(), 512); + dst += 512; + } + break; + } + + case 3: { + auto mblk = m_fs.m_blockdev.get(block); + for(u32 j=0; dst != end; j += 256) { + u32 idx = j/256; + auto iblk = m_fs.m_blockdev.get(mblk.r8(idx) | (mblk.r8(idx | 0x100) << 8)); + for(u32 i=0; i != 256 && dst != end; i++) { + u16 blk = iblk.r8(i) | (iblk.r8(i | 0x100) << 8); + memcpy(dst, m_fs.m_blockdev.get(blk).rodata(), 512); + dst += 512; + } + } + break; + } + + default: + fatalerror("fs_prodos::impl::file::get_file_blocks: unknown file type %d\n", type); + } + + data.resize(length); + return data; +} + +std::vector<u8> fs_prodos::impl::file::read_all() +{ + u8 type = r8(m_entry) >> 4; + if(type >= 1 && type <= 3) + return any_read_all(type, r16l(m_entry+0x11), r24l(m_entry + 0x15)); + + else if(type == 5) { + auto kblk = m_fs.m_blockdev.get(r16l(m_entry+0x11)); + return any_read_all(kblk.r8(0x000), kblk.r16l(0x001), kblk.r24l(0x005)); + + } else + fatalerror("fs_prodos::impl::file::read_all: Unhandled file type %d\n", type); +} + +std::vector<u8> fs_prodos::impl::file::rsrc_read_all() +{ + u8 type = r8(m_entry) >> 4; + + if(type == 5) { + auto kblk = m_fs.m_blockdev.get(r16l(m_entry+0x11)); + return any_read_all(kblk.r8(0x100), kblk.r16l(0x101), kblk.r24l(0x105)); + + } else + fatalerror("fs_prodos::impl::file::rsrc_blocks: Unhandled file type %d\n", type); +} |