Thomas Harte
|
6dfe877c43
|
Basic attempts to organise myself into shape for composite output continue.
|
2016-03-07 21:22:47 -05:00 |
|
Thomas Harte
|
1e5fe2b2c1
|
Made an attempt to reestablish the Atari 2600 output connection despite various changes (TODO: generalise that stuff), and to start creating the composite shader.
|
2016-03-07 21:04:04 -05:00 |
|
Thomas Harte
|
cd9c62acca
|
Still stepping slowly towards a working composite mode, switched the RGB sampling function to returning a vec4, which may be of benefit to any machine with a brightness part of an RGB signal, and started edging towards at least having the correct GLSL programs ready for converting composite output.
|
2016-03-07 19:08:26 -05:00 |
|
Thomas Harte
|
3b6c9c15a1
|
Switching momentarily back to monitor mode, resolved why I was suddenly getting no output upon creating some texture targets.
|
2016-03-07 18:55:15 -05:00 |
|
Thomas Harte
|
eefd17ed4c
|
Fixed sync response in composite scan output generation and stored texture coordinates.
|
2016-03-05 21:52:22 -05:00 |
|
Thomas Harte
|
5c8db71c64
|
Corrected some constants, ensured both machines (so far) are setting the output device.
|
2016-03-05 16:19:10 -05:00 |
|
Thomas Harte
|
7839d93344
|
With the provision of an extra hint to the CRT and, finally, the realisation about why my scans weren't exactly joining up, improved output precision.
|
2016-02-27 22:39:01 -05:00 |
|
Thomas Harte
|
1c6de7692d
|
Made an attempt to fix tape output interrupts; offloaded raster width and placing conversion to the GPU.
|
2016-02-27 20:37:41 -05:00 |
|
Thomas Harte
|
db18c85423
|
Simplified the run builder rather; put a double check of Electron timing in place.
|
2016-02-25 22:01:42 -05:00 |
|
Thomas Harte
|
1eea28b692
|
Disabled some debugging parts, added some others, marked some things as inline. Ticking over.
|
2016-02-22 23:35:42 -05:00 |
|
Thomas Harte
|
ec3cccbb0d
|
Working towards HQ UEF support: fixed bug whereby writing to tape output would reset input pulse stepper; added support for chunk 0116 and approximate support for 0113.
|
2016-02-20 22:03:14 -05:00 |
|
Thomas Harte
|
3754cf4bce
|
Played about with interrupt timing.
|
2016-02-20 21:24:02 -05:00 |
|
Thomas Harte
|
574985f9a2
|
Fixed interlaced timing; switched to a more robust detector for horizontal sync; eliminated some test logging.
|
2016-02-20 20:29:40 -05:00 |
|
Thomas Harte
|
00f414d757
|
Made an attempt to reintroduce interlacing and screen modes with gaps. Something's wrong with synchronisation though, so most likely I'm outputting a bad signal.
|
2016-02-20 17:32:51 -05:00 |
|
Thomas Harte
|
da361be3ee
|
This might be more accurate? Probably not. Who knows?
|
2016-02-20 00:13:43 -05:00 |
|
Thomas Harte
|
518c134348
|
Blank lines are missing (if the double negative can be forgiven) but the framebuffer is otherwise seemingly working well again.
|
2016-02-20 00:11:23 -05:00 |
|
Thomas Harte
|
a3432120f3
|
Fixed synchronisation — my two fields weren't of equal length, I wasn't breaking calls to the CRT upon 40/80 transitions, I had the wrong maximum run length. Now I just need to put real pixels back in.
|
2016-02-19 23:57:57 -05:00 |
|
Thomas Harte
|
1954f7bcbd
|
Got back to a stable image, at least when staying in a mode. Which is what I was trying to fix. Hmmm.
|
2016-02-19 23:41:09 -05:00 |
|
Thomas Harte
|
dce1649fc5
|
Commuted some camelCase variables into more standard C++ underscore names; decided the best fix for the graphics output is to break it down into much simpler chunks. output_pixels is currently a placeholder that simply outputs blank so the current effect is that all data is missing but it should be easy enough now to put pixels back in.
|
2016-02-18 23:23:49 -05:00 |
|
Thomas Harte
|
0b5417ab44
|
Made an attempt to put interrupts in the correct places regardless of even/odd field.
|
2016-02-16 20:36:19 -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
|
7bd237193d
|
Edged closer towards realistic timing.
|
2016-02-13 20:52:35 -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
|
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
|
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
|
2e3ba6bbb2
|
Removed some logging.
|
2016-02-07 14:42:40 -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
|
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
|
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
|
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
|
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
|
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
|
de7218cdf0
|
Added a lot of commenting to the CPU6502 definition, simplifying its construction. Added missing nullability modifier to CSElectron. Fixed bad-habit Objective-C style naming on the Electron's Interrupt enum.
|
2016-01-20 21:55:38 -05:00 |
|
Thomas Harte
|
4c16d34063
|
Moved set_tape so that the inline definition of get_next_tape_pulse is visible to it. Also eliminated some dead typedefs.
|
2016-01-20 08:27:25 -05:00 |
|
Thomas Harte
|
280a2292ff
|
Shushed.
|
2016-01-19 23:33:15 -05:00 |
|
Thomas Harte
|
9036cf3b7c
|
Thus did the first UEF load.
|
2016-01-19 23:03:27 -05:00 |
|
Thomas Harte
|
e65cd4cf06
|
Some data is marginally reaching the CPU from the tape.
|
2016-01-19 22:05:34 -05:00 |
|
Thomas Harte
|
956b90e203
|
Attempted further to improve latency; added view adjustment for non-4:3 output aspect ratios. The 4:3 is currently hardcoded, so further work will be required.
|
2016-01-18 23:55:52 -05:00 |
|
Thomas Harte
|
e63b6d22ae
|
As shown by the commented-out code, the aliasing-adaptation seems to be working. So something is wrong somewhere else.
|
2016-01-14 21:59:37 -05:00 |
|