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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/dvk_mx_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/dvk_mx_dsk.cpp')
-rw-r--r--src/lib/formats/dvk_mx_dsk.cpp25
1 files changed, 16 insertions, 9 deletions
diff --git a/src/lib/formats/dvk_mx_dsk.cpp b/src/lib/formats/dvk_mx_dsk.cpp
index 07d7a38cf95..08156d29e9c 100644
--- a/src/lib/formats/dvk_mx_dsk.cpp
+++ b/src/lib/formats/dvk_mx_dsk.cpp
@@ -18,11 +18,11 @@
************************************************************************/
-#include <cassert>
-
-#include "flopimg.h"
#include "formats/dvk_mx_dsk.h"
+#include "ioprocs.h"
+
+
const floppy_image_format_t::desc_e dvk_mx_format::dvk_mx_new_desc[] = {
/* 01 */ { FM, 0x00, 8*2 }, // eight 0x0000 words
/* 03 */ { FM, 0x00, 1 },
@@ -81,9 +81,14 @@ bool dvk_mx_format::supports_save() const
return false;
}
-void dvk_mx_format::find_size(io_generic *io, uint8_t &track_count, uint8_t &head_count, uint8_t &sector_count)
+void dvk_mx_format::find_size(util::random_read &io, uint8_t &track_count, uint8_t &head_count, uint8_t &sector_count)
{
- uint64_t size = io_generic_size(io);
+ uint64_t size;
+ if (io.length(size))
+ {
+ track_count = head_count = sector_count = 0;
+ return;
+ }
switch (size)
{
@@ -108,7 +113,7 @@ void dvk_mx_format::find_size(io_generic *io, uint8_t &track_count, uint8_t &hea
}
}
-int dvk_mx_format::identify(io_generic *io, uint32_t form_factor, const std::vector<uint32_t> &variants)
+int dvk_mx_format::identify(util::random_read &io, uint32_t form_factor, const std::vector<uint32_t> &variants)
{
uint8_t track_count, head_count, sector_count;
@@ -117,7 +122,8 @@ int dvk_mx_format::identify(io_generic *io, uint32_t form_factor, const std::vec
if (track_count)
{
uint8_t sectdata[512];
- io_generic_read(io, sectdata, 512, 512);
+ size_t actual;
+ io.read_at(512, sectdata, 512, actual);
// check value in RT-11 home block. see src/tools/imgtool/modules/rt11.cpp
if (pick_integer_le(sectdata, 0724, 2) == 6)
return 100;
@@ -129,7 +135,7 @@ int dvk_mx_format::identify(io_generic *io, uint32_t form_factor, const std::vec
return 0;
}
-bool dvk_mx_format::load(io_generic *io, uint32_t form_factor, const std::vector<uint32_t> &variants, floppy_image *image)
+bool dvk_mx_format::load(util::random_read &io, uint32_t form_factor, const std::vector<uint32_t> &variants, floppy_image *image)
{
uint8_t track_count, head_count, sector_count;
@@ -150,7 +156,8 @@ bool dvk_mx_format::load(io_generic *io, uint32_t form_factor, const std::vector
{
for (int head = 0; head < head_count; head++)
{
- io_generic_read(io, sectdata, (track * head_count + head) * track_size, track_size);
+ size_t actual;
+ io.read_at((track * head_count + head) * track_size, sectdata, track_size, actual);
generate_track(dvk_mx_new_desc, track, head, sectors, sector_count, 45824, image);
}
}