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mirror of https://github.com/TomHarte/CLK.git synced 2024-12-12 08:30:05 +00:00
Commit Graph

11728 Commits

Author SHA1 Message Date
Thomas Harte
bbffbb5dc2 Resolved deadlock if an invalidate call was sent to the Electron while it was in the middle of an update. 2016-02-16 20:35:45 -05:00
Thomas Harte
a01f90ff3e Attempted a switch to the real PAL visible area and to something a bit like a real phosphor decay. 2016-02-14 21:57:23 -05:00
Thomas Harte
7580d192d5 Fixes: now setting correct frame time estimate, properly enabling the timestamp attribute, and ensuring that the Electron flushes screen work at least once per host frame update. 2016-02-14 19:28:02 -05:00
Thomas Harte
752db78431 No doubt still imperfect but killed the repeated whole texture uploads. 2016-02-13 23:55:02 -05:00
Thomas Harte
697e50c0cc Screen output is back, no matter how inefficiently. 2016-02-13 23:50:18 -05:00
Thomas Harte
d0b2d840da A minor fix to data queuing. Display still absent. 2016-02-13 20:57:41 -05:00
Thomas Harte
7bd237193d Edged closer towards realistic timing. 2016-02-13 20:52:35 -05:00
Thomas Harte
eeb0e134fd Started the transition towards a more natural collection of rolling buffers, with phosphor decay in mind. 2016-02-13 20:52:23 -05:00
Thomas Harte
f57d6d350b Fixed uninitialised error and incorrect default constructor. 2016-02-12 22:35:16 -05:00
Thomas Harte
fd2d5c78f8 Started trying to nudge towards the multistage approach to video decoding. 2016-02-12 22:31:05 -05:00
Thomas Harte
7bc5a43c36 Fixed type warning. 2016-02-12 22:30:22 -05:00
Thomas Harte
0527888b15 Endeavoured to ensure safe shutdown. 2016-02-12 22:30:06 -05:00
Thomas Harte
0a09762be6 Fixed output precision compared to the new approach of trusting the flywheel for position, and eliminated fixed-Acorn constants. Also re-enabled the faded previous frame, at least temporarily. 2016-02-12 19:53:49 -05:00
Thomas Harte
341fafd3c5 Adjusted visible area. 2016-02-12 19:52:04 -05:00
Thomas Harte
1d20a29d97 Made an attempt to switch to the flywheels for both vertical and horizontal sync, and to act more appropriately for out-of-bounds sync requests. Lots of tweaking to do, I fear. 2016-02-11 23:43:08 -05:00
Thomas Harte
c81891ec43 Minor tidying and at least acknowledged the new flywheel encapsulation. 2016-02-11 22:13:38 -05:00
Thomas Harte
86017de1fb Fixed field timing. It's 312.5 lines now, closer to the PAL standard. 2016-02-11 22:12:37 -05:00
Thomas Harte
a6574d1f96 Made an attempt to factor out and more clearly to document my implementation of flywheel synchronisation. 2016-02-11 22:12:12 -05:00
Thomas Harte
c66409421e Switched to generating an interlaced output, that apparently being correct. Enabled a poor man's version of phosphor persistence to smooth things out a little. It's not completely unconvincing. 2016-02-10 23:11:25 -05:00
Thomas Harte
b5bcadb8d3 Reinstated clipped CRT output, with more appropriate ownership of the decision. 2016-02-07 22:18:55 -05:00
Thomas Harte
3a689d14cc Added padding of supplied data to correct for any potential rounding errors when rendering. 2016-02-07 20:29:32 -05:00
Thomas Harte
3a9ea66f8b Filled in shader class. 2016-02-07 19:21:22 -05:00
Thomas Harte
4d0a218a57 Certainly at least seriously considering a separate holder for the "compile a shader" logic. Otherwise taking steps back towards PAL/NTSC decoding. 2016-02-07 17:32:38 -05:00
Thomas Harte
602327cd9d Sketched out a quick class for rendering to texture. 2016-02-07 15:42:02 -05:00
Thomas Harte
2e3ba6bbb2 Removed some logging. 2016-02-07 14:42:40 -05:00
thomasharte
2cb12a7513 Allowed overly aggressive allocations to be cleared up after the fact. 2016-02-06 16:07:23 -05:00
Thomas Harte
d3d505b7bc That's one header file less. 2016-02-05 23:05:58 -05:00
Thomas Harte
bf348ccb96 Fixed clearing logic. 2016-02-05 22:47:12 -05:00
Thomas Harte
6ab425deda There is now a semi-reasonable amount of screen output again. 2016-02-05 21:35:39 -05:00
Thomas Harte
80e7e5e602 Updated to return old behaviour of drawing only upon changes. 2016-02-04 23:05:47 -05:00
Thomas Harte
8bc3f8046d This endeavours to move everything into the CRT class except the final version of shader building. 2016-02-04 22:57:46 -05:00
Thomas Harte
e0d51408e4 Onward with carrying this through to the bitter end, this at least results in all the appropriate knowledge and call-ins occuring at the CRT. 2016-02-04 22:28:50 -05:00
Thomas Harte
09e11469c3 Simplified further: eliminated delegate. Which means I can go frame-free internally to the CRT at some point, if I want. 2016-02-03 19:11:18 -05:00
Thomas Harte
19393390ac It's broken now, but this is what I now intend the full public interface of the CRT to be. 2016-02-02 22:41:33 -05:00
Thomas Harte
4554abb755 Made an attempt to be more rigorous in display generation on the Electron, to make sure I deal with mid-line changes to/from blank line mode. Even if it turns out that they generate pixels. 2016-01-29 21:14:13 -05:00
Thomas Harte
adc6838ba0 Continued slow migration of shader ownership to CRT. Attempted to start debugging the tape interface. 2016-01-27 21:35:57 -05:00
Thomas Harte
96c946b8af Made a very basic attempt to emulate tape output. 2016-01-24 18:20:55 -05:00
Thomas Harte
1819e7b9cc Started sketching out an appropriate interface to transfer responsibility for shaders to the CRT. 2016-01-23 19:06:32 -05:00
Thomas Harte
ace331d4b4 Got a bit higher level in CRT timing specification. Which internally allows it now to infer the colour clock frequency. Which will be helpful momentarily. 2016-01-23 18:53:20 -05:00
Thomas Harte
a9e26d7808 Introduced a scan's delay, as intended. 2016-01-23 17:49:25 -05:00
Thomas Harte
cd97617a8a Bumped the speaker up to the full namespace, since Tape lives there to avoid delegation complexity. Turned the CRT into something the Electron statically owns, fixing a memory leak by simplifying. 2016-01-23 17:45:06 -05:00
Thomas Harte
20cab08f8f Added a two-slot buffer of scans and a comon dispatch mechanism. 2016-01-23 17:44:34 -05:00
Thomas Harte
f4cd0aa38e Ensured that all relevant information is given to the tape class. Made an attempt not to write to a screen output buffer if we don't have one. Added some debug printing. 2016-01-23 13:09:56 -05:00
Thomas Harte
949c33774a Fixed failure to set a delegate, slowed tape speed if operating in RAM. 2016-01-23 11:42:14 -05:00
Thomas Harte
43a7d1b7ae It'll be helpful to be able to isolate the tape interface when I'm faking a fast load. So factored out. 2016-01-23 00:14:44 -05:00
Thomas Harte
0efe4b312c Disabled my various bits of rate interchange debugging; improved test for when to call update_display due to a RAM write. 2016-01-21 22:16:52 -05:00
Thomas Harte
82cb1c365c Further simplified inner loops. 2016-01-21 21:35:04 -05:00
Thomas Harte
34640cec93 Started trying to move some logic out of the inner loop. 2016-01-21 21:28:09 -05:00
Thomas Harte
48ddd3c497 Set about documenting the CRT; while doing so decided to add an optional clock divider for input; having done so decided to try to exploit it with the Electron. 2016-01-21 21:17:47 -05:00
Thomas Harte
baef1ccd57 Made the constructor protected, to emphasise that this class isn't for instantiation. Also added extra comments aplenty. 2016-01-21 08:39:34 -05:00