diff options
Diffstat (limited to 'src/lib/formats/svi_dsk.cpp')
-rw-r--r-- | src/lib/formats/svi_dsk.cpp | 37 |
1 files changed, 23 insertions, 14 deletions
diff --git a/src/lib/formats/svi_dsk.cpp b/src/lib/formats/svi_dsk.cpp index e3cfa294fcb..0a05bd15c80 100644 --- a/src/lib/formats/svi_dsk.cpp +++ b/src/lib/formats/svi_dsk.cpp @@ -10,6 +10,9 @@ #include "svi_dsk.h" +#include "ioprocs.h" + + svi_format::svi_format() { } @@ -29,9 +32,11 @@ const char *svi_format::extensions() const return "dsk"; } -int svi_format::identify(io_generic *io, uint32_t form_factor, const std::vector<uint32_t> &variants) +int svi_format::identify(util::random_read &io, uint32_t form_factor, const std::vector<uint32_t> &variants) { - uint64_t size = io_generic_size(io); + uint64_t size; + if (io.length(size)) + return 0; if (size == 172032 || size == 346112) return 50; @@ -39,11 +44,13 @@ int svi_format::identify(io_generic *io, uint32_t form_factor, const std::vector return 0; } -bool svi_format::load(io_generic *io, uint32_t form_factor, const std::vector<uint32_t> &variants, floppy_image *image) +bool svi_format::load(util::random_read &io, uint32_t form_factor, const std::vector<uint32_t> &variants, floppy_image *image) { - uint64_t size = io_generic_size(io); - int head_count; + uint64_t size; + if (io.length(size)) + return false; + int head_count; switch (size) { case 172032: head_count = 1; break; @@ -51,7 +58,8 @@ bool svi_format::load(io_generic *io, uint32_t form_factor, const std::vector<ui default: return false; } - int file_offset = 0; + if (io.seek(0, SEEK_SET)) + return false; for (int track = 0; track < 40; track++) { @@ -75,10 +83,10 @@ bool svi_format::load(io_generic *io, uint32_t form_factor, const std::vector<ui sectors[i].bad_crc = false; sectors[i].data = §or_data[sector_offset]; - io_generic_read(io, sectors[i].data, file_offset, sector_size); + size_t actual; + io.read(sectors[i].data, sector_size, actual); sector_offset += sector_size; - file_offset += sector_size; } if (track == 0 && head == 0) @@ -91,9 +99,10 @@ bool svi_format::load(io_generic *io, uint32_t form_factor, const std::vector<ui return true; } -bool svi_format::save(io_generic *io, const std::vector<uint32_t> &variants, floppy_image *image) +bool svi_format::save(util::random_read_write &io, const std::vector<uint32_t> &variants, floppy_image *image) { - uint64_t file_offset = 0; + if (io.seek(0, SEEK_SET)) + return false; int track_count, head_count; image->get_actual_geometry(track_count, head_count); @@ -104,8 +113,8 @@ bool svi_format::save(io_generic *io, const std::vector<uint32_t> &variants, flo for (int i = 0; i < 18; i++) { - io_generic_write(io, sectors[i + 1].data(), file_offset, 128); - file_offset += 128; + size_t actual; + io.write(sectors[i + 1].data(), 128, actual); } // rest are mfm tracks @@ -121,8 +130,8 @@ bool svi_format::save(io_generic *io, const std::vector<uint32_t> &variants, flo for (int i = 0; i < 17; i++) { - io_generic_write(io, sectors[i + 1].data(), file_offset, 256); - file_offset += 256; + size_t actual; + io.write(sectors[i + 1].data(), 256, actual); } } } |