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author Vas Crabb <cuavas@users.noreply.github.com>2021-08-22 09:06:15 +1000
committer GitHub <noreply@github.com>2021-08-22 09:06:15 +1000
commite8bbea1fc6e94e14768509d322f6c624403ffb36 (patch)
tree74dd1606a900d83de8aecff17a6737af4113308d /src/lib/formats/wd177x_dsk.cpp
parente319bde5fc3696d7f48f62b15b6366c4377fe5d1 (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/wd177x_dsk.cpp')
-rw-r--r--src/lib/formats/wd177x_dsk.cpp27
1 files changed, 18 insertions, 9 deletions
diff --git a/src/lib/formats/wd177x_dsk.cpp b/src/lib/formats/wd177x_dsk.cpp
index 22309f32a12..da900b03db5 100644
--- a/src/lib/formats/wd177x_dsk.cpp
+++ b/src/lib/formats/wd177x_dsk.cpp
@@ -10,6 +10,8 @@
#include "formats/wd177x_dsk.h"
+#include "ioprocs.h"
+
wd177x_format::wd177x_format(const format *_formats)
{
@@ -29,9 +31,12 @@ const wd177x_format::format &wd177x_format::get_track_format(const format &f, in
/*
Default implementation for find_size. May be overwritten by subclasses.
*/
-int wd177x_format::find_size(io_generic *io, uint32_t form_factor, const std::vector<uint32_t> &variants)
+int wd177x_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;
+
for(int i=0; formats[i].form_factor; i++) {
const format &f = formats[i];
if(form_factor != floppy_image::FF_UNKNOWN && form_factor != f.form_factor)
@@ -49,15 +54,17 @@ int wd177x_format::find_size(io_generic *io, uint32_t form_factor, const std::ve
if(size == format_size)
return i;
}
+
return -1;
}
-int wd177x_format::identify(io_generic *io, uint32_t form_factor, const std::vector<uint32_t> &variants)
+int wd177x_format::identify(util::random_read &io, uint32_t form_factor, const std::vector<uint32_t> &variants)
{
- int type = find_size(io, form_factor, variants);
+ int const type = find_size(io, form_factor, variants);
if(type != -1)
return 50;
+
return 0;
}
@@ -197,9 +204,9 @@ floppy_image_format_t::desc_e* wd177x_format::get_desc_mfm(const format &f, int
return desc;
}
-bool wd177x_format::load(io_generic *io, uint32_t form_factor, const std::vector<uint32_t> &variants, floppy_image *image)
+bool wd177x_format::load(util::random_read &io, uint32_t form_factor, const std::vector<uint32_t> &variants, floppy_image *image)
{
- int type = find_size(io, form_factor, variants);
+ int const type = find_size(io, form_factor, variants);
if(type == -1)
return false;
@@ -251,7 +258,8 @@ bool wd177x_format::load(io_generic *io, uint32_t form_factor, const std::vector
build_sector_description(tf, sectdata, sectors, track, head);
int track_size = compute_track_size(tf);
- io_generic_read(io, sectdata, get_image_offset(f, head, track), track_size);
+ size_t actual;
+ io.read_at(get_image_offset(f, head, track), sectdata, track_size, actual);
generate_track(desc, track, head, sectors, tf.sector_count, total_size, image);
}
@@ -265,7 +273,7 @@ bool wd177x_format::supports_save() const
return true;
}
-bool wd177x_format::save(io_generic *io, const std::vector<uint32_t> &variants, floppy_image *image)
+bool wd177x_format::save(util::random_read_write &io, const std::vector<uint32_t> &variants, floppy_image *image)
{
// Count the number of formats
int formats_count;
@@ -377,7 +385,8 @@ bool wd177x_format::save(io_generic *io, const std::vector<uint32_t> &variants,
build_sector_description(tf, sectdata, sectors, track, head);
extract_sectors(image, tf, sectors, track, head);
int track_size = compute_track_size(tf);
- io_generic_write(io, sectdata, get_image_offset(f, head, track), track_size);
+ size_t actual;
+ io.write_at(get_image_offset(f, head, track), sectdata, track_size, actual);
}
}