Thomas Harte
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6153ada33b
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Fixed Electron's support for automatically booting floppy disks.
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2017-01-08 14:46:19 -05:00 |
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Thomas Harte
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be48c950b4
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Started taking steps towards using a texture barrier where possible to reduce all of my framebuffer binds. Some output appears, but it's not correct.
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2017-01-08 11:13:20 -05:00 |
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Thomas Harte
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0487b8c178
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Definitively eliminated the additional y filtering step; if I'm going to work to ensure always four samples per colour cycle, I can put the channel separation coefficients directly into their shaders, cutting down on samples.
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2017-01-07 16:02:33 -05:00 |
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Thomas Harte
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5740015f56
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Temporarily disabled composite processing to show the pure stream. Fixed both automatic calculations of phase — per line and, at input, per pixel.
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2017-01-07 12:38:00 -05:00 |
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Thomas Harte
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c84004bfa3
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Fixed: colour_cycle_numerator_ doesn't need to be multiplied by the time multiplier because it'll get that for free from the calculation of next_run_length.
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2017-01-06 21:36:19 -05:00 |
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Thomas Harte
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c746a3711f
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Temporarily disabled my attempt to be clever with bilinear filtering when applying a lowpass filter. Will need to investigate.
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2017-01-04 08:06:18 -05:00 |
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Thomas Harte
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aa7774a9a6
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Experimental: up the chroma accuracy, just let the luma go straight through. Subject to figuring out how I'm still losing so much precision.
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2017-01-03 22:41:34 -05:00 |
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Thomas Harte
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a836120945
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Restored proper colour separation, but somewhere a massive hit in horizontal resolution is happening — much greater than one would expect from the sample size picked. So investigation to come.
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2017-01-03 22:32:07 -05:00 |
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Thomas Harte
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7d60df9075
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Added the option for both intermediate and output shaders to use only a portion of the input/output texture; made an attempt to pick an appropriate proportion in order to align signal sampling with the colour subcarrier.
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2017-01-03 22:16:52 -05:00 |
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Thomas Harte
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f2b8b26bc4
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Started throwing some comments into my shaders.
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2017-01-03 21:16:38 -05:00 |
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Thomas Harte
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9d60172571
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Merge pull request #93 from TomHarte/ReadWriteTrack
Implements the Type 3 WD177x commands
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2017-01-01 21:01:56 -05:00 |
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Thomas Harte
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eca3995481
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Added a CRC check for read address, ensured CRC, lost data and record not found are initially reset.
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2017-01-01 21:00:25 -05:00 |
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Thomas Harte
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044c920a5b
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Made it more explicit that there are no unhandled cases.
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2017-01-01 20:56:52 -05:00 |
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Thomas Harte
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0df9ce5a76
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Made an attempt at read address. So superficially that leaves only the force interrupts.
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2017-01-01 20:55:09 -05:00 |
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Thomas Harte
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f94f34f053
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Made an attempt at read track. Which means process_input_bit can't just swallow syncs any more; it now reports them as tokens of type ::Sync.
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2017-01-01 20:39:19 -05:00 |
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Thomas Harte
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4ad2d2bedd
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Merge branch 'master' into ReadWriteTrack
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2017-01-01 20:04:22 -05:00 |
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Thomas Harte
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e28f72d919
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Merge pull request #90 from TomHarte/TravisCI
Introduces a shared Xcode scheme plus a first attempt at Travis CI integration
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2017-01-01 20:03:26 -05:00 |
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Thomas Harte
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c994fa39f6
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Ensured spin-up doesn't occur if there's no motor line.
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2016-12-31 16:18:30 -05:00 |
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Thomas Harte
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1ea4f0d79d
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Made an attempt to implement 'write track' and ensure that 'write sector' can't end without announcing that it has ended writing.
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2016-12-31 16:01:44 -05:00 |
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Thomas Harte
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0689df1349
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Merge pull request #92 from TomHarte/MFMCleanup
Adds some documentation and tidies some of the new MFM infrastructure
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2016-12-31 15:32:11 -05:00 |
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Thomas Harte
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b3c33d993a
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Made an attempt to explain the requirements placed upon Disk subclasses that wish to support writing.
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2016-12-31 15:30:48 -05:00 |
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Thomas Harte
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8eb21c6702
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The "MFM...Byte"s aren't MFM-specific, they're relevant to both FM and MFM encoding. So renamed them. Also slimmed syntax within MFM.cpp mostly where emigration from the Acorn disk analyser had left a residue of lengthy namespace specification.
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2016-12-31 15:25:11 -05:00 |
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Thomas Harte
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4c62487e6e
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Merge pull request #91 from TomHarte/TableCRC
Switches to a table-based implementation of CRC generation
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2016-12-31 14:16:17 -05:00 |
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Thomas Harte
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a147d56ce6
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Switched to a table-based implementation of CRC generation, adding construction cost to cheapen running cost.
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2016-12-31 14:15:20 -05:00 |
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Thomas Harte
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7b696b0962
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Switched scheme to shared.
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2016-12-31 13:11:07 -05:00 |
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Thomas Harte
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57bb771fb7
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It looks like spaces are automatically escaped (?)
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2016-12-31 13:05:55 -05:00 |
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Thomas Harte
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5201a59c44
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Attempted to introduce Travis CI.
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2016-12-31 13:03:32 -05:00 |
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Thomas Harte
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df6e98fa52
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Merge pull request #89 from TomHarte/OricDiskWrites
Adds write support for the Oric .DSK file format
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2016-12-31 12:53:43 -05:00 |
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Thomas Harte
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52b850a3f5
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Quick extra: make sure parsed tracks don't overflow the 6400 byte space available in an MFM disk. Which might be better expressed as 6250?
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2016-12-31 12:51:52 -05:00 |
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Thomas Harte
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cfbab1448c
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Switched to a track parsing that disallows synchronisation values within sector contents.
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2016-12-31 12:23:08 -05:00 |
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Thomas Harte
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12549ff412
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Might as well get the file offset before entering the critical section; also moved the lock guard down more explicitly to group with the second set of actions.
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2016-12-31 11:48:46 -05:00 |
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Thomas Harte
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6f0b5427e4
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Made an attempt to avoid repetition of sync bytes.
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2016-12-31 00:20:00 -05:00 |
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Thomas Harte
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0123b37213
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Made an attempt to include sync values in the stream and properly to align.
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2016-12-31 00:11:31 -05:00 |
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Thomas Harte
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ea4d85e1cd
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The virtual disk constructed is the same across all tracks. So why not just request zero?
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2016-12-31 00:10:35 -05:00 |
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Thomas Harte
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f217d508b8
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Completed first attempt at write support for Oric disk images.
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2016-12-30 23:12:46 -05:00 |
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Thomas Harte
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1f625fad66
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Decided that if this is an [M]FM parsing function then it should be something more intelligent than a mere PLL record. Which I guess conveniently implies Oric DSK-esque behaviour. But properly defined, rather than very vaguely.
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2016-12-30 23:10:52 -05:00 |
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Thomas Harte
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632b3c63b1
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Added the infrastructure necessary for Oric disks to appear writeable to the machine and to receive changed tracks.
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2016-12-30 22:51:48 -05:00 |
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Thomas Harte
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d581294479
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Added get_track to get the PLL output for a complete track.
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2016-12-30 19:59:23 -05:00 |
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Thomas Harte
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0f399b0a0c
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Made type conversion explicit.
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2016-12-30 19:59:01 -05:00 |
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Thomas Harte
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c6fcc40ac5
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Merge pull request #88 from TomHarte/WDWrites
Implements write support for the WD.
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2016-12-30 18:11:00 -05:00 |
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Thomas Harte
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3b29e6a473
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Ensured SSD and ADFs are grown if required.
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2016-12-30 18:08:12 -05:00 |
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Thomas Harte
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07dacff42d
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Added writing for Acorn ADF disks, plus appropriate TODOs in both similar bits of boilerplate.
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2016-12-30 18:03:30 -05:00 |
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Thomas Harte
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c85450648f
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Fix: make sure copies have proper event lengths. Also made it much clearer what's going on with the initial copy to the heap.
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2016-12-30 17:55:46 -05:00 |
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Thomas Harte
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c740d9655a
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Fixed: index_count_ may have been left high by a previous call; reset it just in case.
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2016-12-30 17:55:06 -05:00 |
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Thomas Harte
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d09e7ac1e8
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Made an attempt at reacting appropriately if the very first thing that looks like a sector doesn't pan out.
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2016-12-30 17:44:35 -05:00 |
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Thomas Harte
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5d63556870
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Periods need a custom copy constructor too, if they're going to avoid sharing an event_source.
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2016-12-30 17:39:52 -05:00 |
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Thomas Harte
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e5cc77f22d
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Added an extra sanity check.
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2016-12-30 17:29:51 -05:00 |
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Thomas Harte
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81a3cbac45
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Ensured a copy is passed for writing back rather than the original.
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2016-12-30 17:26:44 -05:00 |
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Thomas Harte
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63ff5165a4
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After a quick bit of reading, discovered the virtual copy constructor pattern really is only a convention in C++, and conformed to it. Which hopefully gives copyable tracks.
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2016-12-30 17:25:39 -05:00 |
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Thomas Harte
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71dbd78cf2
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If asynchronous background processing is to occur on tracks then, given that they inherently have state, they'll need to be copyable, and ideally 'cheaply' (though it's not too great a priority). So started implementing appropriate copy constructors. Also introduced an extra level of indirection to PCMSegmentEventSource so that it can copy itself without copying the underlying PCMSegment, which is 95% of the heft of a track in all currently-implemented cases.
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2016-12-30 14:23:26 -05:00 |
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