diff options
Diffstat (limited to 'src/lib/formats/ccvf_dsk.cpp')
-rw-r--r-- | src/lib/formats/ccvf_dsk.cpp | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/src/lib/formats/ccvf_dsk.cpp b/src/lib/formats/ccvf_dsk.cpp index 6ed0c14038a..d2c8da8e083 100644 --- a/src/lib/formats/ccvf_dsk.cpp +++ b/src/lib/formats/ccvf_dsk.cpp @@ -2,7 +2,7 @@ // copyright-holders:Curt Coder /********************************************************************* - formats/ccvf_dsk.c + formats/ccvf_dsk.cpp Compucolor Virtual Floppy Disk Image format @@ -24,17 +24,17 @@ ccvf_format::ccvf_format(const format *_formats) formats = _formats; } -const char *ccvf_format::name() const +const char *ccvf_format::name() const noexcept { return "ccvf"; } -const char *ccvf_format::description() const +const char *ccvf_format::description() const noexcept { return "Compucolor Virtual Floppy Disk Image"; } -const char *ccvf_format::extensions() const +const char *ccvf_format::extensions() const noexcept { return "ccvf"; } @@ -47,13 +47,15 @@ const ccvf_format::format ccvf_format::file_formats[] = { {} }; -int ccvf_format::identify(util::random_read &io, uint32_t form_factor, const std::vector<uint32_t> &variants) +int ccvf_format::identify(util::random_read &io, uint32_t form_factor, const std::vector<uint32_t> &variants) const { char h[36]; - size_t actual; - io.read_at(0, h, 36, actual); + auto const [err, actual] = read_at(io, 0, h, 36); + if (err || (36 != actual)) + return 0; + if (!memcmp(h, "Compucolor Virtual Floppy Disk Image", 36)) - return 100; + return FIFID_SIGN; return 0; } @@ -88,7 +90,7 @@ floppy_image_format_t::desc_e* ccvf_format::get_desc_8n1(const format &f, int &c return desc; } -bool ccvf_format::load(util::random_read &io, uint32_t form_factor, const std::vector<uint32_t> &variants, floppy_image *image) +bool ccvf_format::load(util::random_read &io, uint32_t form_factor, const std::vector<uint32_t> &variants, floppy_image &image) const { const format &f = formats[0]; @@ -96,9 +98,9 @@ bool ccvf_format::load(util::random_read &io, uint32_t form_factor, const std::v if (io.length(size)) return false; - std::vector<uint8_t> img(size); - size_t actual; - io.read_at(0, &img[0], size, actual); + auto [err, img, actual] = read_at(io, 0, size); + if (err || (actual != size)) + return false; std::string ccvf = std::string((const char *)&img[0], size); std::vector<uint8_t> bytes(78720); @@ -146,14 +148,14 @@ bool ccvf_format::load(util::random_read &io, uint32_t form_factor, const std::v generate_track_from_levels(track, 0, buffer, 0, image); } - image->set_variant(f.variant); + image.set_variant(f.variant); return true; } -bool ccvf_format::supports_save() const +bool ccvf_format::supports_save() const noexcept { return false; } -const floppy_format_type FLOPPY_CCVF_FORMAT = &floppy_image_format_creator<ccvf_format>; +const ccvf_format FLOPPY_CCVF_FORMAT; |