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6,610 Commits 7 Branches 121 Tags 500 MiB
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835 Commits

Author SHA1 Message Date
Thomas Harte
a5e1765ce4 Eliminates potential race conditions on validity of delegate_. 2020-02-18 20:33:31 -05:00
Thomas Harte
1e4356f83a Adds a sensible is_stereo to the MultiSpeaker. 2020-02-16 18:50:34 -05:00
Thomas Harte
545a6177bb Makes CompoundSource mono/stereo-aware. 2020-02-16 18:45:36 -05:00
Thomas Harte
50d356be2f Ensures all audio sources, including compound sources, announce whether they're stereo correctly. 2020-02-16 18:31:45 -05:00
Thomas Harte
9835e800ec Fixed: individual audio generators now either are or are not stereo. The speaker acts accordingly. 2020-02-16 18:28:03 -05:00
Thomas Harte
90856a0e7a Adds mixdown/up capability to Speaker. 
To deal with occasions when the host machine just always is either mono or stereo, and the emulated machine must cope.
 2020-02-16 13:50:18 -05:00
Thomas Harte
d55d077a95 Fixes the input buffer partial-keep step in stereo. 2020-02-16 00:20:22 -05:00
Thomas Harte
e66a3523b6 Makes some attempt at stereo support, with the Amstrad CPC being the test case. 2020-02-15 18:55:19 -05:00
Thomas Harte
e02d109864 Nudges the LowpassSpeaker towards supporting stereo generation. 2020-02-15 18:03:12 -05:00
Thomas Harte
49b8e771b5 Adds the messaging that would allow a Speaker to output stereo, semantically. 2020-02-15 13:40:19 -05:00
Thomas Harte
6bda4034c6 Ensures no input data is dropped when changing output rates. 
I think this 'completely' deals with the problem. At least until someone wants dynamic output buffer sizes or something like that. We'll see.
 2020-02-09 19:14:25 -05:00
Thomas Harte
b04daca98e Picks a safer default construction. 2020-02-09 19:13:21 -05:00
Thomas Harte
6ae42d07a7 Retains existing output when switching filter coefficients. 
This eliminates an issue with dynamic rate matching and throwing away the beginnings of buffers.
 2020-02-09 16:42:07 -05:00
Thomas Harte
b5d6126a2d Avoids unnecessary filter recalculation. 2020-02-09 16:32:32 -05:00
Thomas Harte
f95b07efea Continues edging towards raster racing and/or time warping. 2020-02-06 23:35:03 -05:00
Thomas Harte
b41920990f Moves submit step to end of line, rather than end of scan. 2020-02-04 22:15:20 -05:00
Thomas Harte
709c229cd7 Gets a bit more explicit with ScanTarget documentation. 2020-02-04 20:19:46 -05:00
Thomas Harte
8aabf1b374 Allows receivers of nullptr from begin_data to output any quantity of data. 2020-02-01 21:43:48 -05:00
Thomas Harte
019474300d Centralises responsibility for picking irrelevant numbers for a computer-style monitor. 2020-01-30 23:26:02 -05:00
Thomas Harte
f9ce50d2bb Adds some debugging `asserts. 2020-01-29 22:45:44 -05:00
Thomas Harte
7316a3aa88 Merge branch 'master' into FinalOverride 2020-01-26 23:42:25 -05:00
Thomas Harte
b514756272 Adds the option to run machines at a multiple of their real speeds. 
Exposed to SDL users only, for now.
 2020-01-26 13:25:23 -05:00
Thomas Harte
294e09f275 All these 'override's can be 'final's. 
At least for the purpose of being communicative. I doubt there's much to gain in terms of compiler output — the DiskImageHolder can avoid some virtual lookups but nothing else leaps out.
 2020-01-23 22:57:51 -05:00
Thomas Harte
9136917f00 Enables the Oric for 50/60Hz mode switching, inventing PAL60 for the purpose. 2020-01-23 22:14:02 -05:00
Thomas Harte
428d141bc9 Factors out the logic behind the Atari 2600's frequency switching. 2020-01-23 20:12:44 -05:00
Thomas Harte
a5f285b4ce Enhances reported data. 2020-01-22 22:01:17 -05:00
Thomas Harte
a71c5946f0 Ensures proper manipulation of scan_statuses, leading to the correct result out of a CRTMachine. 
Possibly with the exception of the TMS, as I appear to have uncovered an unrelated issue there.
 2020-01-21 22:28:25 -05:00
Thomas Harte
e7fff6e123 Minor step towards correct answers: divide by time_multiplier_. 2020-01-20 22:33:51 -05:00
Thomas Harte
82e5def7c4 Implements get_scan_status, but for scale being incorrect. 2020-01-20 21:58:34 -05:00
Thomas Harte
d97a073d1b Adds the necessary routine for all machines to be able to respond to get_scan_status. 
They all just as the CRT, as all are currently based on the CRT. Which doesn't currently know the total clock rate it would need to in order properly to scale the answer to the question. Further thought coming.
 2020-01-20 21:45:10 -05:00
Thomas Harte
3c760e585a Switches to accepting a bit mask of events to run_until. 2020-01-20 16:08:21 -05:00
Thomas Harte
cb61e84868 Starts building out higher-level run_until functionality. 
Specifically: you can now run until the next set of speaker samples has been delivered.
 2020-01-20 12:12:23 -05:00
Thomas Harte
7dea99b1cc Update comment, for sense. 2020-01-02 23:13:12 -05:00
Thomas Harte
0dae608da5 Embraces std::make_[unique/shared] in place of .reset(new . 2019-12-23 21:31:46 -05:00
Thomas Harte
274867579b Deploys constexpr as a stricter const. 2019-12-22 00:22:17 -05:00
Thomas Harte
e9318efeb6 Switches to std::make_shared/make_unique in a bunch of applicable places. 
No doubt many more similar improvements are available, these are just the ones that were easy to find.
 2019-12-21 23:34:25 -05:00
Thomas Harte
cc7ff1ec9e Corrects typo. 2019-11-09 14:59:35 -05:00
Thomas Harte
9d12ca691f Makes meaning of 2048 here explicit. 2019-11-09 14:59:16 -05:00
Thomas Harte
68f9084d9e Fixes timing of wrap. 2019-11-07 23:24:51 -05:00
Thomas Harte
f9a35c6636 Corrects potential wrap error for non-single-byte targets. 2019-11-07 22:23:26 -05:00
Thomas Harte
6c75c60149 Merge branch 'master' into AtariST 2019-11-05 22:05:51 -05:00
Thomas Harte
35f1a7ab10 Resolves a potential out-of-bounds array access. 
Risk was: allocation exactly joins end of buffer. In which case the next get_data won't wrap the texture y coordinate since it won't spot an x overage.
 2019-11-05 21:47:40 -05:00
Thomas Harte
1c154131f9 Expands size of storage in Cycles/HalfCycles; adjusts widely to compensate. 2019-10-29 22:36:29 -04:00
Thomas Harte
92847037b3 Merge branch 'master' into AtariST 2019-10-27 21:40:51 -04:00
Thomas Harte
4266264449 Switches to the more idiomatic .empty(). 2019-10-27 21:31:31 -04:00
Thomas Harte
3794d94b68 Adds a sanity check on alignment. 2019-10-27 14:09:02 -04:00
Thomas Harte
d1dd6876b5 Adds the option to affix a standard prefix to log messages. 2019-10-20 20:38:55 -04:00
Thomas Harte
684644420a Increases scan buffer availability. 2019-10-20 17:22:41 -04:00
Thomas Harte
9c7aa5f3fc Attempts also to spot data writes without allocations. 2019-10-19 18:26:56 -04:00
Thomas Harte
418cd07e17 Adds a check against overrunning data. 2019-10-19 18:17:44 -04:00
Thomas Harte
19198ea665 Improves const usage. 2019-07-16 22:13:47 -04:00
Thomas Harte
60cedca97b Adds cmath in support of ceilf. 2019-07-08 18:14:03 -04:00
Thomas Harte
f6f9024631 Corrects Macintosh aspect ratio (and framing). 2019-06-13 18:41:38 -04:00
Thomas Harte
66540ff86f Permits end_data only after a begin_data. 2019-06-03 21:56:53 -04:00
Thomas Harte
b860ba2ee3 Disallows smaller buffer use for 'sharp' displays and tightens sampling window. 2019-06-03 15:58:14 -04:00
Thomas Harte
d25ab35d58 Finally gets setw usage correct. 2019-04-15 12:41:56 -04:00
Thomas Harte
6f7dd10d95 Reduces draw/update contention. 
This won't yet have any effect on either port owing to the way they handle contexts, but here it is.
 2019-03-07 19:28:32 -05:00
Thomas Harte
24fb95291a Reverts to support a full RGBA colour buffer. 2019-03-07 19:22:40 -05:00
Thomas Harte
84422676cb Switches to more coherent logic about buffer sizing. 2019-03-06 19:19:30 -05:00
Thomas Harte
7441e3f4c5 Corrects aspect ratio when changing accumulation texture size. 2019-03-05 22:10:32 -05:00
Thomas Harte
f18132d674 Makes effort to round out draft 1 of Outputs::Display::Metrics. 2019-03-05 22:01:58 -05:00
Thomas Harte
5660007221 Experimentally introduces adaptive quality intermediate buffers. 2019-03-05 21:41:20 -05:00
Thomas Harte
86a6b04d4a Begins attempts to keep track of display metrics. 
i.e. a system that can both make smart decisions about when to use a lower resolution, and hopefully allow some sort of flywheel-esque horizontal retrace synchronisation. And possibly some raster beam chasing?
 2019-03-04 21:54:50 -05:00
Thomas Harte
641e349f33 Switches to an 8bpp stencil, for Nvidia compatibility. 2019-03-03 20:38:24 -05:00
Thomas Harte
ccdeb3fbc8 Ensures draw is a no-op prior to pipeline setup. 2019-03-03 15:04:14 -05:00
Thomas Harte
bee0d09877 Splits display update and draw functions. 
On the Mac, draw is now called without an update for resizing events, and
anything else requested by AppKit. In all other cases — including from
the SDL version — both are called as if they were still a single function.
 2019-03-02 19:33:28 -05:00
Thomas Harte
d97348dd38 Eliminates dangling uses of printf. 2019-03-02 18:07:05 -05:00
Thomas Harte
d122535a65 Unifies the OpenGL screenshot code and corrects it for arbitrary alignment. 2019-02-27 21:05:02 -05:00
Thomas Harte
db078c7363 Minor tweak: don't start counting phase from zero. 
This should ensure no first pixel issues resulting from clamping.
 2019-02-27 18:51:51 -05:00
Thomas Harte
6b4f6971de Disables upper limit on frame buffer size. 
Filtering is sufficiently imperfect as to make this justifiable only when performance requires it. So I need a test for that. Marked as TODO.
 2019-02-26 22:39:07 -05:00
Thomas Harte
79707a3c66 Improves filtering slightly, and ensures coefficients are always set when needed. 2019-02-26 22:35:55 -05:00
Thomas Harte
694783efe9 Brings S-Video inside the group that filters luminance. 
Thereby revealing some sort of error in offset selection.
 2019-02-26 22:27:40 -05:00
Thomas Harte
68c5474e36 Reintroduces basic filtering for RGB mode (and introduces it for monochrome composite). 2019-02-26 22:21:49 -05:00
Thomas Harte
cd055a0298 Introduces an upper bound on output resolution, and resolves full-screen clear colour. 2019-02-25 22:07:48 -05:00
Thomas Harte
8f2abab0d9 Ensures texture targets are initially clear. 2019-02-25 21:55:14 -05:00
Thomas Harte
4c5dee866b Ensures a proper black fill for Luminance8Phase8 input data. 2019-02-25 21:32:15 -05:00
Thomas Harte
7bb90c78d9 Resolves out-of-bounds initial condition whenever this loop began with start_line = 2047. 
This, I believe, was the remaining cause of screen flashes.
 2019-02-24 19:50:19 -05:00
Thomas Harte
a6e61ef83b Reverts the clear colour to black. 
The change was related to debugging; it was not intentionally committed.
 2019-02-24 14:36:08 -05:00
Thomas Harte
c775a6c0f8 Introduces but disables a couple of bits of logging that might be helpful again in the future. 2019-02-24 14:30:39 -05:00
Thomas Harte
2f9e825728 Forces the outward-communicated composite angles to have the same precision as the cycle counts. 
While also making a minor improvement to output range. Which is neither here nor there.
 2019-02-24 14:29:43 -05:00
Thomas Harte
2f491b5be1 Reintroduces fragment snapping for composite colour sampling. 
Thereby uncovers some sort of slightly-off recording of scan lines. On the Apple II, individual scans reach the ScanTarget at a density of exactly 0.25 colour cycles per pixel. So that timing information propagates exactly. But the whole lines that are composed via ::announce end up trying to fit 0.250154 colour cycles per pixel. Which creates a phase error as the display progresses from left to right.

This will need to be resolved in order to be able to fix the Apple II's intended colour phase. But, also, it's probably what was wrong with the Oric. And, quite possibly, why the single-step shader didn't work.
 2019-02-24 13:39:14 -05:00
Thomas Harte
de7ebead23 Ensures the line_allocation_has_failed_ condition can be exited. 2019-02-21 22:30:41 -05:00
Thomas Harte
c0c4704419 Ensures that failure to allocate a line blocks all other allocations. 2019-02-21 21:38:48 -05:00
Thomas Harte
080f949f89 Ensures OpenGL version is logged prior to any other GL calls. 2019-02-20 20:21:17 -05:00
Thomas Harte
9f6956bd87 Awards default values to Scan, to appease GCC 7.3. 2019-02-19 21:40:42 -05:00
Thomas Harte
ddf5e1632d Ensures log memory is automatically initialised. 2019-02-18 22:08:03 -05:00
Thomas Harte
40bfde41cb Adds an OpenGL version shout out. 2019-02-18 22:01:56 -05:00
Thomas Harte
e0751af56d Handles the 0 return case. 2019-02-18 21:56:49 -05:00
Thomas Harte
3979faf43b Gets more explicit about potential causes of failure. 2019-02-18 21:53:35 -05:00
Thomas Harte
878b480a44 Tidies up marginally. 2019-02-18 21:37:07 -05:00
Thomas Harte
b35b6b2ba8 Resolves a couple of missing #includes for cassert. 2019-02-18 21:29:39 -05:00
Thomas Harte
6b2e1fe62b Makes error reporting more communicative. 2019-02-18 11:13:54 -05:00
Thomas Harte
8ecf885629 Attempts to put in better OpenGL safety rails. 2019-02-18 10:29:40 -05:00
Thomas Harte
6d76b7cd94 Attempts to ensure proper colour output during alternating PAL lines. 2019-02-17 21:50:15 -05:00
Thomas Harte
7bd721f334 Resolves improper state if an end-of-frame clear is triggered by the first new line. 2019-02-17 21:49:53 -05:00
Thomas Harte
77bebd4a65 Accounts for periods near an expected sync after a sync actually occurred. 2019-02-12 22:30:40 -05:00
Thomas Harte
ec8f1157c8 Corrects S-Video output. 2019-02-12 19:31:12 -05:00
Thomas Harte
037cbd534e Corrects phase error in chrominance separation. 2019-02-12 19:24:28 -05:00
Thomas Harte
208ef70e31 Corrects documentation. 2019-02-12 18:55:58 -05:00
Thomas Harte
2fa4c59523 Correction: use the QAM texture for colours. 2019-02-12 18:42:28 -05:00