diff options
author | 2021-08-22 09:06:15 +1000 | |
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committer | 2021-08-22 09:06:15 +1000 | |
commit | e8bbea1fc6e94e14768509d322f6c624403ffb36 (patch) | |
tree | 74dd1606a900d83de8aecff17a6737af4113308d /src/lib/formats/flex_dsk.cpp | |
parent | e319bde5fc3696d7f48f62b15b6366c4377fe5d1 (diff) |
formats, osd, util: Started refactoring file I/O stuff. (#8456)
Added more modern generic I/O interfaces with implementation backed by stdio, osd_file and core_file, replacing io_generic. Also replaced core_file's build-in zlib compression with a filter.
unzip.cpp, un7z.cpp: Added option to supply abstract I/O interface rather than filename.
Converted osd_file, core_file, archive_file, chd_file and device_image_interface to use std::error_condition rather than their own error enums.
Allow mounting TI-99 RPK from inside archives.
Diffstat (limited to 'src/lib/formats/flex_dsk.cpp')
-rw-r--r-- | src/lib/formats/flex_dsk.cpp | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/src/lib/formats/flex_dsk.cpp b/src/lib/formats/flex_dsk.cpp index 692cc4bdc9d..4989a25e707 100644 --- a/src/lib/formats/flex_dsk.cpp +++ b/src/lib/formats/flex_dsk.cpp @@ -50,7 +50,11 @@ */ #include "flex_dsk.h" -#include "formats/imageutl.h" + +#include "imageutl.h" + +#include "ioprocs.h" + flex_format::flex_format() : wd177x_format(formats) { @@ -71,7 +75,7 @@ const char *flex_format::extensions() const return "dsk"; } -int flex_format::identify(io_generic *io, uint32_t form_factor, const std::vector<uint32_t> &variants) +int flex_format::identify(util::random_read &io, uint32_t form_factor, const std::vector<uint32_t> &variants) { int type = find_size(io, form_factor, variants); @@ -80,17 +84,21 @@ int flex_format::identify(io_generic *io, uint32_t form_factor, const std::vecto return 0; } -int flex_format::find_size(io_generic *io, uint32_t form_factor, const std::vector<uint32_t> &variants) +int flex_format::find_size(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 -1; + uint8_t boot0[256], boot1[256]; + size_t actual; // Look at the boot sector. // Density, sides, link?? - io_generic_read(io, &boot0, 256 * 0, sizeof(boot0)); - io_generic_read(io, &boot1, 256 * 1, sizeof(boot1)); + io.read_at(256 * 0, &boot0, sizeof(boot0), actual); + io.read_at(256 * 1, &boot1, sizeof(boot1), actual); // Look at the system information sector. - io_generic_read(io, &info, 256 * 2, sizeof(struct sysinfo_sector)); + io.read_at(256 * 2, &info, sizeof(struct sysinfo_sector), actual); LOG_FORMATS("FLEX floppy dsk: size %d bytes, %d total sectors, %d remaining bytes, expected form factor %x\n", (uint32_t)size, (uint32_t)size / 256, (uint32_t)size % 256, form_factor); |