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Commit Graph

1949 Commits

Author SHA1 Message Date
Thomas Harte
55e576cc57 Ensures unpainted areas in composite displays have a non-asymptotic effect on luminance calculations. 2020-09-03 21:10:30 -04:00
Thomas Harte
6bd8ec9545 Alas, 1.0 seems to be the limit for proper artefact colour. 2020-09-03 20:53:45 -04:00
Thomas Harte
5cd8d86eef Switches to dynamic generation of the 'sharpness' filter, correcting issues with the Apple II (amongst others). 2020-09-03 20:48:44 -04:00
Thomas Harte
74d0acdaec Fixes non-RGB colour composite generation. 
The hard-coded sharpen filter proves to be a really bad fit for the Apple II though.
 2020-09-03 19:04:17 -04:00
Thomas Harte
0288a1974b Tries: separate filters for chroma and luma, plus a post-separation sharpen filter on the latter. 2020-09-03 13:18:21 -04:00
Thomas Harte
6efd8782fe Tweaks coefficients some more; makes sure that data is never larger than the intermediate buffers. 2020-09-02 20:14:41 -04:00
Thomas Harte
8bab9d5d60 Corrects S-Video and composite generation for RGB[1/2/4] sources. 
Also toys with a double luminance filter in order to try to sharpen chrominance. But maybe I should be looking at other convolutions entirely?
 2020-09-02 19:13:54 -04:00
Thomas Harte
7e58648743 Corrects front-running bug, plays further with colour amplitude. 2020-09-02 15:51:48 -04:00
Thomas Harte
0f0c3e616d Tweaks some numbers. 
I'm largely treading water here. Probably time to think about the race.
 2020-09-02 08:17:01 -04:00
Thomas Harte
c7ce65ea4c Attempts fully to restore composite video. 
Subject to some sort of nasty race condition for the time being.
 2020-09-02 08:03:10 -04:00
Thomas Harte
c36247b609 Ensures reuse of offset buffers. 
There seems to be some sort of epic race condition as the drawing pipeline lags though. Will need to investigate.
 2020-09-01 22:11:48 -04:00
Thomas Harte
15296e43a4 Attempts correctly to set up the CPU side of a composite video pipeline, at least. 
So: I think this is really close, but I'm out of time for the day.
 2020-09-01 21:58:33 -04:00
Thomas Harte
f2929230a2 [Experimentally] introduces blending between computed S-Video fragments. 2020-09-01 21:37:36 -04:00
Thomas Harte
bf252b8061 Fixes sizing of buffers to the current output. 2020-09-01 21:33:54 -04:00
Thomas Harte
9e2bf2af7e Restricts S-Video processing to updated lines. 2020-09-01 21:27:40 -04:00
Thomas Harte
245f2654f0 Shifts S-Video processing into the compute shader. 2020-09-01 20:37:11 -04:00
Thomas Harte
67ca298a72 Forces a no-op compute shader into the S-Video pipeline. 
The intention is to restrict the area acted over, and to do the S-Video filtering in there. Then I'll just need two such stages for composite.
 2020-09-01 18:39:52 -04:00
Thomas Harte
67d4dbf91a Starts girding for a third pipeline. 2020-08-31 20:01:59 -04:00
Thomas Harte
b344269140 I think I accept the need for intermediate steps now. 
This allocates storage.
 2020-08-30 20:21:01 -04:00
Thomas Harte
bb547610f2 Adds commentary, shrinks some intermediate texture sizes. 2020-08-30 12:06:29 -04:00
Thomas Harte
1e1f007bb7 Possibly convinces myself that no-separation chroma/luma isn't practical. 
... as appealing as it may be, were filters perfect.
 2020-08-29 21:25:49 -04:00
Thomas Harte
c40d858f02 Switches back to angular stuff at input resolution; ensures all S-Video modes work. 
Now to roll back onto composite. Fingers crossed!
 2020-08-29 20:54:46 -04:00
Thomas Harte
3d564d85fd Proves that per-pixel sine/cos evaluation avoids phase issues. 
Even in PAL mode. But I'd rather not _require_ this as it kind of negates directly-sampled input.
 2020-08-29 18:53:37 -04:00
Thomas Harte
02cea40ffa Attempts to avoid introducing phase error in scanToComposition. 
Also brightens S-Video up to RGB levels.
 2020-08-25 22:41:37 -04:00
Thomas Harte
e502d336db Having decided that these things probably need to be separate, starts drilling down on S-Video. 2020-08-25 22:05:19 -04:00
Thomas Harte
807cb99f6d Composite angles are signed. 2020-08-23 21:39:04 -04:00
Thomas Harte
7ca0362f23 Treads water. 
Difficult current question: why does the Atari 2600's display change colours as the display tries to achieve horizontal lock? Phase should be unchanged. Ergo something is amiss.
 2020-08-23 21:03:26 -04:00
Thomas Harte
56c7bd242a Marginally tidies. 2020-08-22 16:38:36 -04:00
Thomas Harte
5c6112415a Sets appropriate clear colour for composition render pass. 2020-08-21 22:41:54 -04:00
Thomas Harte
bf6a0c9fc4 Achieves a return of composite colour for RGB-producing machines. 2020-08-21 22:06:36 -04:00
Thomas Harte
d54b937ab6 Starts trying to do actual composite processing. 2020-08-21 21:11:25 -04:00
Thomas Harte
7c23c32e44 Corrects composition colour phase. 2020-08-20 20:45:45 -04:00
Thomas Harte
4e21d24b5f Corrects composition colour amplitude. 2020-08-20 20:34:37 -04:00
Thomas Harte
ad6fb85fda Corrects use of composition buffer. 
Something is still very obviously amiss in colour processing somewhere down the line, but the correct forms are once again visibly in evidence.
 2020-08-20 20:21:28 -04:00
Thomas Harte
5dc39a5d24 Adds the composition render pass. 
Albeit that something here doesn't work at present.
 2020-08-19 21:56:53 -04:00
Thomas Harte
3597f687de Continues sidling towards composite & S-Video handling. 2020-08-19 21:20:06 -04:00
Thomas Harte
8811506adf Starts towards building a compound[/composition?] buffer. 
I now need to discover whether I can use natural integer texture coordinates.
 2020-08-17 22:10:02 -04:00
Thomas Harte
11dec6fc0f Avoids a redundant clear. 2020-08-17 22:09:15 -04:00
Thomas Harte
59c4c8233f Generalises existing scanToDisplay to add lineToDisplay. 2020-08-17 21:15:19 -04:00
Thomas Harte
9da79d2d81 Clarifies scaling logic. 2020-08-17 20:29:46 -04:00
Thomas Harte
27e8a3a1b5 Obeys modals' zoom. 
Subject to an attempt at factoring aspect ratio differences.
 2020-08-16 21:11:43 -04:00
Thomas Harte
745797b596 Introduces a stencil buffer plus the inter-frame clearing it allows. 2020-08-16 16:42:32 -04:00
Thomas Harte
940e9e037e Adds first_scan to LineMetadata. 
Also reorders `Line` fields to match `Scan` fields, just for visual consistency.
 2020-08-16 08:59:37 -04:00
Thomas Harte
512c0079a9 Makes thread safe. 2020-08-15 21:52:55 -04:00
Thomas Harte
645c29f853 Adds an intermediate buffer to correct inter-frame smoothing. 
Also goes someway back to the old scan output scheduling, albeit presently with limited thread safety.
 2020-08-15 21:24:10 -04:00
Thomas Harte
e55945674d Reduces main thread blocking. 2020-08-14 22:16:49 -04:00
Thomas Harte
7ac88536dd Respects machine aspect ratio. 
To an extent. Doesn't currently deal with cropping of machines when the window aspect ratio is smaller.
 2020-08-14 21:24:25 -04:00
Thomas Harte
230b9fc9e6 Permits multiple simultaneous scan reading ranges. 
Also updates the OpenGL scan target as per the latest movements of things.
 2020-08-12 22:08:41 -04:00
Thomas Harte
27ca782cac Enables blending; attempts to enable frame preservation. 
The latter seems to be evidencing a double buffer at play. More investigation required.

On the plus side, the direct route is still well within GPU budget at 4k on my Core M. So a huge improvement there.
 2020-08-12 19:34:07 -04:00
Thomas Harte
a136a00a2f Takes a shot at adding RGB -> S-Video and composite conversion, for all RGB types. 2020-08-11 22:11:50 -04:00
Thomas Harte
4b55df1cb4 Starts upon a macro-oriented means of RGB input function generation. 2020-08-10 22:03:39 -04:00
Thomas Harte
b9309268ba Possibly finally succeeds at moving Accelerate.framework to where it should be. 2020-08-10 21:46:11 -04:00
Thomas Harte
8fa89baf54 Slightly cleans up Xcode project; reenables kiosk-for-Mac builds. 2020-08-10 21:43:32 -04:00
Thomas Harte
8374a5e579 Adds superficially correct compositeSampleLuminance8Phase8 function. 
Thereby uncovering a minor error in my decoding of colour phase.
 2020-08-10 21:33:59 -04:00
Thomas Harte
525233e10b Ensures all input data types are parseable in Metal. 
Though now I need to think a bit more about the best way to compose signal-type conversions, and whether output-type calculations (i.e. gamma, brightness) are applied.
 2020-08-10 19:47:47 -04:00
Thomas Harte
eadda6a967 Further strips OpenGL from the macOS target. 2020-08-09 22:17:27 -04:00
Thomas Harte
3d6590af89 Throws out a little more OpenGL. 2020-08-09 22:11:31 -04:00
Thomas Harte
28d933d5d6 Does just enough to get 8-bit RGB and 1-bit luminance machines to display. 
Assuming an 'RGB' output.
 2020-08-09 21:19:07 -04:00
Thomas Harte
a118594c8b Hacks to make RGB1 visible (in a fashion). 2020-08-09 20:45:51 -04:00
Thomas Harte
93c6105442 Corrects calculation of dirty texture area. 2020-08-09 20:45:14 -04:00
Thomas Harte
57fecdc09e Ties everything together in an attempt to display RGB scans. 
I'm actually just getting a mess of pixels, but it's something!
 2020-08-09 18:41:15 -04:00
Thomas Harte
cd491bb6e0 Cleans up project file; macOS 10.13 is definitely the deployment target. 2020-08-09 18:27:57 -04:00
Thomas Harte
f16ad8f71d Takes a shot at submitting texture changes. 2020-08-09 17:59:52 -04:00
Thomas Harte
e340685a99 Seemingly proves that proper geometry is reaching Metal by drawing scans. 
No in-buffer accumulation yet, but this is progress. If I can add accumulation and stencil clearing, I'm not doing badly.
 2020-08-08 23:11:44 -04:00
Thomas Harte
df89a8771c Makes an attempt to have the emulator fill the actual GPU buffers. 
Not that they're drawn from correctly yet. I might first take a run at a new quick-path output route for emulated RGB displays, that just seeks to use the scans directly. No intermediate buffers. Besides probably being a good feature, it'll be a good way to ramp further up with Metal.
 2020-08-08 22:49:02 -04:00
Thomas Harte
bdcf266e45 Having learnt a bit more: eliminates Metal attribute tags, switches to more natural expression of structs. 
Also thereby eliminates the need for a forced alignas(4) on various structs.
 2020-08-08 17:27:32 -04:00
Thomas Harte
edf41b06fd Eliminates the quad buffer. 
Vertices can be adduced from vertex ID.
 2020-08-08 17:12:49 -04:00
Thomas Harte
38960a08d6 Adds adjustment for display aspect ratio. 
While also realising that I appear to be getting away without an MTLVertexDescriptor for Scans. Maybe OpenGL has prejudiced me, and they're actually optional for interleaved data?
 2020-08-07 22:29:24 -04:00
Thomas Harte
fbda7aab23 Does just enough to get the correct (aspect ratio aside) output of scan outlines. 
So, up next, can I start streaming these things?
 2020-08-07 22:20:01 -04:00
Thomas Harte
c575aa0640 Adds a buffer for scans, and posts two test instances. 2020-08-07 22:03:54 -04:00
Thomas Harte
bb55ecc101 Disables --volume for kiosk mode testing. 2020-08-07 21:19:53 -04:00
Thomas Harte
4421acef34 Gets some uniforms in on the action. 
With some effort towards scans, but incompletely so.
 2020-08-07 21:19:17 -04:00
Thomas Harte
219923bd63 Reduces vertex size, draws a quad. 2020-08-05 21:33:25 -04:00
Thomas Harte
7551782a25 Switches to interleaved vertex data. 
This more closely relates to what I actually want to do.
 2020-08-05 17:27:43 -04:00
Thomas Harte
eff24a8726 My first baby steps in Metal continue; here's a triangle. 2020-08-04 21:49:01 -04:00
Thomas Harte
72df6e52cd This is possibly at least dispatching an empty command buffer correctly. 2020-08-04 19:44:56 -04:00
Thomas Harte
e235a45abb Breaks all output. 
... by switching out NSOpenGLView for MKLView with no drawing infrastructure yet in place.
 2020-08-04 18:22:14 -04:00
Thomas Harte
b14bedbe29
Merge pull request #817 from TomHarte/LockFreeQueue 
Fully splits buffering from drawing for the existing OpenGL scan target.
 2020-07-30 21:42:20 -04:00
Thomas Harte
3db4a8c312 Attempts to improve vsync deadline estimation. 
Also increases probability of bad estimation being discarded.
 2020-07-27 21:08:00 -04:00
Thomas Harte
db8e1b0edf Adds feedback on unidentified ROMs. 2020-07-27 20:45:47 -04:00
Thomas Harte
71c3f58c99 Provides user feedback upon improper command-line usage. 2020-07-27 20:40:38 -04:00
Thomas Harte
7c05b1788e Ensures proper thread confinement for updateStatusBarText. 2020-07-27 20:25:52 -04:00
Thomas Harte
f9f500c194 Merge branch 'master' into LockFreeQueue 2020-07-24 22:29:45 -04:00
Thomas Harte
e097a841d2 Adds a c++1z fallback for SDL builds, too. 2020-07-24 22:01:22 -04:00
Thomas Harte
84d5316aa7 Add c++1z as a config option, for older versions of Qt. 2020-07-24 16:32:59 -04:00
Thomas Harte
84dcf9925b Updates Scons and Qt projects to include new files. 2020-07-23 23:14:10 -04:00
Thomas Harte
ee1d7eb61f Makes more buffer-specific stuff private. 2020-07-23 23:06:14 -04:00
Thomas Harte
74788ccf8e Pulls the BufferingScanTarget into a separate file. 2020-07-22 22:16:47 -04:00
Thomas Harte
42f2bf05bf Attempt to load a file if passed on the command line. 2020-07-13 21:51:55 -04:00
Thomas Harte
d91cf598be Ensures qmake paths are explicit. 2020-07-11 17:46:32 -04:00
Thomas Harte
86737454a0 Exposes activity lights in Qt. 
As a status bar, which is a bit of a quick fix, but it's better than not displaying this information.
 2020-07-10 23:18:38 -04:00
Thomas Harte
223a960a06 Implements standard keyboard -> joystick mapping. 2020-07-10 22:30:43 -04:00
Thomas Harte
f72570386c Installs and removes an 'Input' menu where required. 
Also ensures safe shutdown of a second machine.
 2020-07-09 23:47:38 -04:00
Thomas Harte
56e5491e5c Ensures safe startup. 2020-07-09 23:06:32 -04:00
Thomas Harte
be1c3e9136 Ensures key state is cleared upon activation changes. 2020-07-08 21:31:29 -04:00
Thomas Harte
2d223305eb Correct subject of switch. 2020-07-08 00:49:29 -04:00
Thomas Harte
48c2dcf50e Introduce provisional X11 bindings. 2020-07-08 00:46:29 -04:00
Thomas Harte
fa26c82273 Undoes extra dependency, checks for X11 at runtime. 2020-07-08 00:15:44 -04:00
Thomas Harte
0763ae38dd Attempts to add conditional include for non-Mac UNIX only. 2020-07-07 23:57:32 -04:00
Thomas Harte
abe1e7f244 Provide current thoughts on Qt and the keyboard. 2020-07-06 22:27:50 -04:00
Thomas Harte
5a729f92c1 Attempts to move the 'Help' menu to the correct place. 2020-07-04 19:19:41 -04:00
Thomas Harte
366793498a Ensures ScanTargetWidget doesn't eat irrelevant keypresses. 2020-07-04 19:12:34 -04:00
Thomas Harte
cdda3f74ab Attempts mouse event capture. 2020-07-04 00:29:37 -04:00
Thomas Harte
d97ebae200 Request Qt deprecation warnings. 2020-07-03 23:16:49 -04:00
Thomas Harte
2d5e9bf1bb Declines to set up audio output if none is available. 2020-07-02 22:58:15 -04:00
Thomas Harte
8bf5ed52ea Ensures keyboard events are restricted to single windows. 2020-07-02 22:03:12 -04:00
Thomas Harte
b850183a1e Switches to an alternative to window(), for older Qt support. 2020-07-02 21:53:30 -04:00
Thomas Harte
f7e13356c4 FunctionThreads no longer automatically start. 
Improvements as a result: audio works in a second machine started in an existing window; there is no audio thread footprint if there is no audio.
 2020-07-01 18:55:42 -04:00
Thomas Harte
55cc3089f9 Ensures complete deallocation of the QAudioOutput. 2020-06-30 23:33:41 -04:00
Thomas Harte
a096a09c72 Trusts Qt to supply a refresh rate, and handles retina <-> non-retina window transitions. 2020-06-30 23:03:39 -04:00
Thomas Harte
b9e117cdcf Centralises window title responsibility. 2020-06-28 23:08:40 -04:00
Thomas Harte
f6e5a2fb04 Resolves duplicative enums. 2020-06-28 22:50:24 -04:00
Thomas Harte
404c35feb5 Implements Atari 2600 switches menu. 2020-06-28 17:57:20 -04:00
Thomas Harte
b5962c58bb Completes ZX80/81-specific menu. 2020-06-28 16:23:35 -04:00
Thomas Harte
74da762ae1 Starts sketching out the ZX80/81 menu items. 2020-06-28 01:04:32 -04:00
Thomas Harte
d87c840b76 Adds quick load and quick boot options. 
This should leave only the ZX80/81 and 2600 as special cases.
 2020-06-27 17:08:29 -04:00
Thomas Harte
afb835398f Ensures display selection is preserved in the app settings. 2020-06-27 16:26:39 -04:00
Thomas Harte
6925a04088 Ensures 'Display' menu is removed if machine is closed. 2020-06-26 23:27:14 -04:00
Thomas Harte
a0e534b309 Starts towards offering display-type selection. 2020-06-26 23:04:45 -04:00
Thomas Harte
74d1ca4fa8 Simplifies indentation, correcting flow while there. 2020-06-26 21:16:15 -04:00
Thomas Harte
3c896050fb Ensures proper output sizeing on HiDPI displays. 2020-06-26 21:14:43 -04:00
Thomas Harte
387500f01a Implements 'Insert...' menu item. 2020-06-26 18:25:56 -04:00
Thomas Harte
21c41ed4cb Reduces boilerplate and key repetition. 2020-06-26 00:39:30 -04:00
Thomas Harte
293ab25634 Ensures complete machine picker state is stored. 2020-06-26 00:23:52 -04:00
Thomas Harte
3ddc1a1722 Eliminates hard-coded concept of timer jitter. 2020-06-25 23:59:44 -04:00
Thomas Harte
478d081095 Ensures machines take user-friendly default settings. 2020-06-23 23:27:56 -04:00
Thomas Harte
9d4b49bbb5 Attempts to be more rigorous in vsync prediction. 2020-06-23 22:59:12 -04:00
Thomas Harte
4417f81014 Attempts to set a meaningful window title. 2020-06-22 22:58:58 -04:00
Thomas Harte
b96f7711e3 Corrects attempt at back-to-UI final window SDI behaviour. 
Maybe it'll turn out to be not what I want, but at least now it works.
 2020-06-22 22:36:36 -04:00
Thomas Harte
1875a03757 Plugs a per-window memory leak. 
While also ensuring proper OpenGL resource destruction.
 2020-06-22 20:32:44 -04:00
Thomas Harte
13336b8ad5 Consolidates and disables failed attempt at final-window close behaviour. 2020-06-21 23:52:41 -04:00
Thomas Harte
b17cceaeaf Tidies up and makes a failing attempt at SDI improvements. 2020-06-21 23:50:18 -04:00
Thomas Harte
782a62585e Preserves open path between launches. 2020-06-21 19:10:06 -04:00
Thomas Harte
c5d8d9127b Rejigs ScanTarget relationship from pull to push, so it can be set whenever it is safe. 2020-06-21 18:25:38 -04:00
Thomas Harte
336dffefe0 Ensures changes in the framebuffer are passed onward. 2020-06-21 17:25:21 -04:00
Thomas Harte
e297d4cced Decouples scan target drawing and lifetime. 2020-06-21 17:20:44 -04:00
Thomas Harte
b052ca5ca2 Switch to Qt-style member naming. 2020-06-21 17:16:11 -04:00
Thomas Harte
68d4d7d10a Ensures no out-of-bounds access for unlabelled keys. 2020-06-21 17:11:24 -04:00
Thomas Harte
a03211c410 Makes an attempt at the single document interface. 2020-06-21 12:30:18 -04:00
Thomas Harte
1fbb733f7f Expands upon comment. 2020-06-20 00:05:41 -04:00
Thomas Harte
4f9b3259d5 Adds explicit conversions to qint64. 2020-06-19 23:12:18 -04:00
Thomas Harte
12ee8e4db4 Ensures audio is not being pumped while the AudioBuffer is being destructed. 2020-06-19 23:09:39 -04:00
Thomas Harte
95e98323c5 Adds missing header for lock_guard and mutex. 2020-06-19 23:09:20 -04:00
Thomas Harte
222c16c5b8 Ensures newly-hidden widgets aren't still in focus. 2020-06-19 22:01:53 -04:00
Thomas Harte
4e83e80962 Goes further in ensuring safe shutdown. 
Especially if no machine has been started.
 2020-06-19 20:17:47 -04:00
Thomas Harte
4fdbe578cc Wires up all new machine options. 2020-06-18 23:34:37 -04:00
Thomas Harte
c5cad865d7 Tidies up: arranges initialisers into alphabetical order, shortens some enum references. 2020-06-18 23:34:28 -04:00
Thomas Harte
ae5fe9225f Fills in all machine options. 2020-06-18 22:24:45 -04:00
Thomas Harte
327b9051c8 Adds necessary layouts for Apple II type selection. 2020-06-18 20:30:50 -04:00
Thomas Harte
8151c24cf5 Starts the machine-picker side of the interface. 2020-06-18 20:05:46 -04:00
Thomas Harte
ee659095c2 Retains the default window background colour until a machine is running. 2020-06-17 23:16:29 -04:00
Thomas Harte
8c35fe1062 Finally succeeds at making the missingROMsBox resize with the window. 2020-06-17 22:22:15 -04:00
Thomas Harte
9ca6a1031c Adds an 'about' box and a hypothetical 'New' file option. 2020-06-16 23:15:47 -04:00
Thomas Harte
e8939aada4 Now that this spin blocks at startup, I can use a standard atomic_flag. 2020-06-16 23:12:58 -04:00
Thomas Harte
17bb3dce26 Makes a firmer attempt at enforcing safe shutdown. 2020-06-16 22:33:50 -04:00
Thomas Harte
495024d6fe Cleans up all redundant lock/unique_guard declarations. 2020-06-15 00:24:10 -04:00
Thomas Harte
902b33d25d Makes more failing attempts at a clean shutdown. 2020-06-15 00:00:44 -04:00
Thomas Harte
ac732e2e7b Attempts to ensure clean shutdown. 2020-06-14 23:38:44 -04:00
Thomas Harte
d08ffd6c8b Makes sure the timer really, really is on a different thread. 
Thereby allows me substantially to reduce audio latency.
 2020-06-14 23:22:00 -04:00
Thomas Harte
79833deeaf With some attempt at vsync prediction, seeks to smooth audio/video output. 
There's plenty more work to do here, but hopefully it takes the issue immediately off the table.
 2020-06-14 19:26:56 -04:00
Thomas Harte
405e9e7c68 Shunts audio into its own QThread. 
For the record, this was the first means I found of attempting that which actually seemed to work. A plain QThread, with something `connect`ed to its `started` signal didn't seem to work (perhaps `connect` is smart at thread confinement?), `moveToThread` didn't work on the audio output after the fact, etc.
 2020-06-10 22:14:54 -04:00
Thomas Harte
5f13ee7c19 Simplifies AudioBuffer by consolidating logic into writes. 
This is kind of fiddling in the margins though; I'm having a lot of difficulty determining the semantically-correct way to get Qt not to funnel all activity through a single thread.
 2020-06-09 23:56:08 -04:00
Thomas Harte
d9f02aecdf Adds an additional buffer. To reduce latency. No, really. 
Specifically: there's no way to guarantee no overbuffering due to the startup race, other than having QAudioOutput obtain data by pull rather than push. But if it's pulling then that implies an extra buffer. And since the sizes it may pull are not explicit, there's guesswork involved there.

So: no extra buffer => uncontrollable risk of over-buffering. Extra buffer => a controllable risk of over-buffering.
 2020-06-09 00:01:22 -04:00
Thomas Harte
bcb23d9a15 Attempt to reduce audio latency. Unsuccessfully. 2020-06-08 21:30:35 -04:00
Thomas Harte
d027450502 Consolidates timer/thread ownership for the timer. 2020-06-07 00:31:46 -04:00
Thomas Harte
63ad1290f4 Actually, QIODevice is listed as reentrant. So no need to forward audio. 
That said, latency is still absurd for some reason.
 2020-06-06 23:47:57 -04:00
Thomas Harte
7c7cb61d2f Corrects missing audio, at the cost of frame rate. 
I'm now spinning on the ability of QAudioOutput to accept additional data.
 2020-06-06 22:35:50 -04:00
Thomas Harte
68b165e244 QIODevice isn't guaranteed thread safe, so use of it is now thread confined. 2020-06-06 21:14:04 -04:00
Thomas Harte
fe1b6812f1 Fixes processing cap and attempts full-rate video output. 
Audio now seems to be present, though hugely stuttered.
 2020-06-06 19:47:35 -04:00
Thomas Harte
378ff39e5e Makes an unsuccessful attempt at producing audio. 
On the plus side, it does seem successfully to sniff out an appropriate audio format and to communicate mono/stereo onward.
 2020-06-06 19:19:01 -04:00
Thomas Harte
e47cb91223 Pushes rudimentary keyboard input. 2020-06-05 23:06:28 -04:00
Thomas Harte
d62fb16a58 Adds an eventFilter, in order to steal keypresses. 2020-06-05 22:11:17 -04:00
Thomas Harte
235efcb2d4 Attempts to silence asserts, etc, for release builds. 2020-06-04 23:14:51 -04:00
Thomas Harte
a6ada129e8 Adds very low quality, race-condition infested video output. 2020-06-04 22:58:02 -04:00
Thomas Harte
a681576d6c Adds redraw logic. 
If you sit around and constantly reeize the window, you can now see that a machine is running.
 2020-06-04 22:39:32 -04:00
Thomas Harte
fdc234ed3b Advances to having a selected machine actually run. 
Albeit, invisibly.
 2020-06-03 23:39:16 -04:00
Thomas Harte
e2ceb77501 Attempts to start updating a started machine. 
No real progress on graphics output though.
 2020-06-03 00:21:37 -04:00
Thomas Harte
11c28357a1 Implements a basic ROM installation loop. 
Albeit that I need to figure out how layouts work to keep that request view at least centred.
 2020-06-02 23:35:01 -04:00
Thomas Harte
ba2a0600dc Adds a basic Qt ROM fetcher and attempt to create a machine. 2020-06-01 23:14:57 -04:00
Thomas Harte
ab53165b34 Adds note on implementation obstacle. 2020-06-01 22:08:21 -04:00
Thomas Harte
a30723c3d4 Cleans up a little and ensures a safe exit of the timer thread. 2020-05-31 23:58:19 -04:00
Thomas Harte
d64b4fbc26 Adds a Qt timer class. Precision seems to be 'acceptable'. 2020-05-31 23:39:08 -04:00
Thomas Harte
5e0bea9d1c Adds all header files to the QMake project. 2020-05-30 16:48:52 -04:00
Thomas Harte
48afc54af6 Cuts down unused parameter warnings to just a few that may well indicate implementation errors. 2020-05-30 01:06:43 -04:00
Thomas Harte
d066dd2b44 Resolves further unused parameter warnings. 
Also adds warning to Xcode build, for better symmetry with Qt defaults.
 2020-05-30 00:58:10 -04:00
Thomas Harte
0bf7de9d43 Advances to actually completing a build. 
Many more warnings to iron out, however.
 2020-05-30 00:47:43 -04:00
Thomas Harte
267006782f Starts to add Qt target; resolves many build warnings. 2020-05-30 00:37:06 -04:00
Thomas Harte
512a52e88d Increases const correctness, marks some additional constructors as constexpr, switches std::atomic construction style. 2020-05-20 23:34:26 -04:00
Thomas Harte
ff3c2fdc59 Adds 68000 state to SConstruct. 2020-05-16 18:33:36 -04:00
Thomas Harte
8b76d4007e Starts adding State for the 68000. 2020-05-14 22:46:40 -04:00
Thomas Harte
80f2836cb8 Adds Z80 state to SConstruct. 2020-05-13 22:05:23 -04:00
Thomas Harte
7c9d9ee048 Adds basic Z80 state. 2020-05-13 20:15:22 -04:00
Thomas Harte
6dc7a4471d Removes unused .cpp file. 2020-05-09 23:43:05 -04:00
Thomas Harte
25996ce180 Further doubles down on construction syntax for type conversions. 2020-05-09 23:00:39 -04:00
Thomas Harte
3729bddb2a Farewell, BestEffortUpdater. 2020-05-09 21:48:04 -04:00
Thomas Harte
4136428db3 Removes dead StandardOptions.cpp. 2020-05-09 21:35:15 -04:00
Thomas Harte
4c6d0f7fa0 Corrects SConstruct; applies default initialisation in Struct.cpp. 2020-05-09 18:11:50 -04:00
Thomas Harte
40b60fe5d4 Renames folder as per intended scope. 2020-05-09 18:04:11 -04:00
Thomas Harte
303965fbb8 Removes the crutch of my first-attempt implementation. 2020-05-08 20:53:34 -04:00
Thomas Harte
0505b82384 Restores top bit of channel period, propagates it to the envelope generator. 2020-05-05 00:28:24 -04:00