Thomas Harte
b860ba2ee3
Disallows smaller buffer use for 'sharp' displays and tightens sampling window.
2019-06-03 15:58:14 -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
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
d122535a65
Unifies the OpenGL screenshot code and corrects it for arbitrary alignment.
2019-02-27 21:05:02 -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
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
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
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
Thomas Harte
cda0a2de79
Establishes QAM colour buffer lookups within the composite colour path.
...
Subject to errors in channel scaling and absolute position.
2019-02-10 23:02:31 -05:00
Thomas Harte
008f50832c
Fixed: the two shaders that use a common input array should use common bindings.
2019-02-10 22:39:24 -05:00
Thomas Harte
c94acb1ca2
With a little more debug logging, discovered an issue with incrementing by four.
2019-02-09 22:45:20 -05:00
Thomas Harte
d341f98b09
Corrects horizontal scale.
2019-02-09 18:52:43 -05:00
Thomas Harte
e35a3ab566
Ensures proper uniforms and varyings for the qam_separation_shader.
2019-02-09 18:35:14 -05:00
Thomas Harte
b3b4b7cf0c
Corrects QAM texture generation logic.
2019-02-09 17:20:13 -05:00
Thomas Harte
1cd6d58f17
Restores S-Video through line, as monochrome.
2019-02-09 17:13:43 -05:00
Thomas Harte
eecd4417e7
Bites the bullet and accepts that an additional texture will be useful for QAM separation.
2019-02-09 16:54:31 -05:00
Thomas Harte
798cc58f76
Simplifies the composite colour shader no longer to handle colour.
2019-02-05 19:22:35 -05:00
Thomas Harte
6ba1194d74
Sets a clear colour appropriate for phase-linked luminance clearing.
2019-02-03 22:33:04 -05:00
Thomas Harte
e5f75b5df2
Resolves repetition between svideo_sample and composite_sample.
2019-02-03 22:09:16 -05:00
Thomas Harte
b75ad3def2
Updates the multimachine for the ScanTarget world.
2019-02-03 15:07:22 -05:00
Thomas Harte
caf72afcb4
Switches to a seven-point scheme, to determine whether falsely-shared luminance is at fault.
...
It doesn't seem to be, alas.
2019-01-31 21:19:30 -05:00
Thomas Harte
687e0b376e
Enhances error checking around setting of uniforms.
2019-01-31 21:17:49 -05:00
Thomas Harte
122857e5b5
Improves automatic index generation, to allow for matrices implicitly taking up to four slots.
2019-01-31 18:49:01 -05:00
Thomas Harte
5002290428
Makes consistent use of textureLod rather than texture.
2019-01-26 22:05:15 -05:00
Thomas Harte
d09ac3384f
Eliminates some old-school manual memory management.
...
In favour of additional copying, but I still think this is safer.
2019-01-25 22:54:23 -05:00
Thomas Harte
b6a4a7e0a5
This is no longer TODO.
2019-01-25 22:47:15 -05:00
Thomas Harte
c87994336c
Switches the Shader class to using LOG.
2019-01-25 22:45:47 -05:00
Thomas Harte
85ad490089
Offers a less error-prone route to attribute binding.
2019-01-25 21:56:55 -05:00
Thomas Harte
68d6feaa03
Adds missing includes and gets more explicit about exceptions.
2019-01-25 20:19:50 -05:00
Thomas Harte
74e1a9a621
Declines improper use of offset within loops and adds missing header.
2019-01-25 20:14:53 -05:00
Thomas Harte
6a43fc5df0
Resolves a GCC-troubling circular declaration issue vs. atomic.h.
2019-01-25 19:30:39 -05:00
Thomas Harte
312f38906b
Corrects two improper include paths.
2019-01-25 19:19:23 -05:00
Thomas Harte
6a93d2d006
Corrects some minor spaces-instead-of-tabs errors.
2019-01-24 22:59:03 -05:00
Thomas Harte
ae0bc7e7aa
Calculates sampling offsets up front.
2019-01-23 20:53:10 -05:00
Thomas Harte
a8acadbe13
Gives the shader builders freer rein over what to use as inputs, and turns angles into a varying.
...
All dropping out during the never-ending diagnosis at play here.
2019-01-22 22:20:12 -05:00
Thomas Harte
727f2e2ba0
Updates to the ScanTarget world.
2019-01-17 22:28:02 -05:00
Thomas Harte
a6683cb9b8
Avoids scaling luminance prior to extracting chrominance.
2019-01-17 20:52:33 -05:00
Thomas Harte
d593796dae
Reintroduces less-filtered black and white video where there's no colour burst.
2019-01-16 22:22:29 -05:00
Thomas Harte
ef0dbc2a41
Undoes hard-coding of target framebuffer and display gamma.
2019-01-15 21:33:30 -05:00
Thomas Harte
6c49953115
Returns gamma correction, and corrects Amstrad CPC brightness.
2019-01-14 22:56:08 -05:00
Thomas Harte
55290f4dad
Attempts a fix of frame_was_complete_ logic, to try to eliminate black flashes.
2019-01-14 21:42:45 -05:00
Thomas Harte
bb03d2f2ad
Removes redundant enumeration.
2019-01-13 23:07:50 -05:00
Thomas Harte
7aec5be61a
Cleans up and simplifies shader creation.
2019-01-13 22:49:01 -05:00
Thomas Harte
e89e55a9bb
Attempts to factor actual composite amplitude into output.
2019-01-13 14:45:17 -05:00
Thomas Harte
7c2c243985
Corrects sample spacing, and removes a lot of detritus.
2019-01-12 18:36:54 -05:00
Thomas Harte
25a1f23fc0
Takes a first shot at re[re,re]-implementing composite colour decoding.
2019-01-12 17:59:24 -05:00
Thomas Harte
27541196cc
Corrects Luminance8Phase8 and PhaseLinkedLuminance8 composite encodings.
2019-01-11 22:46:50 -05:00
Thomas Harte
5d9521fcb9
Advances back to a semi-complete monochrome composite output.
...
i.e. composite phase and amplitude is ostensibly flowing to its new destination.
2019-01-11 22:02:15 -05:00
Thomas Harte
028e530232
Shunts output shader to its proper place.
2019-01-06 22:59:14 -05:00
Thomas Harte
906a2ff6eb
Switches to using clock times for buffer merging and output.
2019-01-06 18:47:01 -05:00
Thomas Harte
c392c819c1
Switches to using the announce is_visible flag to spot line ends.
2019-01-06 13:37:34 -05:00
Thomas Harte
e9d9ff0da0
Enhances ScanTarget to provide additional timing information.
2019-01-05 23:09:17 -05:00
Thomas Harte
46d756d298
Starts towards a flattening of the intermediate video processing.
...
Immediate issue: using x position to index into a bitmap sampled at the input data rate doesn't allow for the disconnection between input rate and output speed provided by the flywheels.
2019-01-05 18:11:39 -05:00
Thomas Harte
fd0ffc7085
Attempts an initial flattening of the pipeline, seemingly losing all output.
2019-01-01 21:02:21 -05:00
Thomas Harte
557a2a0ddf
Moves pipeline setup into draw(), where there'll definitely be an OpenGL context.
2018-11-29 19:41:54 -08:00
Thomas Harte
6be46ae921
Mostly restores Atari 2600 output. PAL colours need work.
2018-11-29 18:26:05 -08:00
Thomas Harte
a25470ee41
Permits tweaking of PhaseLinkedLuminance8 sampling offset.
2018-11-29 16:29:28 -08:00
Thomas Harte
fd579a019b
Introduces a new scan source data type, motivated by the reasoning used by the Oric.
...
Specifically: it'll allow PCM sampling of the potentially arbitrary composite generation logic of various machines.
2018-11-28 20:40:22 -08:00
Thomas Harte
d45c2a1f28
Settles, at least for now, on 15-tap notch filtering.
2018-11-26 22:34:31 -05:00
Thomas Harte
f3174069fa
Attempts a linear comb filter for YC separation, plus post-separation Y filtering.
2018-11-25 21:54:12 -05:00
Thomas Harte
cd1e796093
Attempts to add clearing of the destination framebuffer too.
2018-11-24 23:31:56 -05:00
Thomas Harte
dd4af4f0df
Removes dead files.
2018-11-24 22:40:06 -05:00
Thomas Harte
76656fab23
Applies harsher filtering.
2018-11-24 22:39:53 -05:00
Thomas Harte
cf49603a9e
Makes first reintroduction of colour composite decoding.
2018-11-24 22:30:39 -05:00
Thomas Harte
6c92853461
Corrects monochrome composite generation.
2018-11-24 21:55:15 -05:00
Thomas Harte
6a62cf9146
Corrects shader generation for S-Video input to S-Video output.
2018-11-24 21:40:34 -05:00
Thomas Harte
4fa6bc0ad1
Corrects S-Video decoding for most machines.
...
Ironically, that being those other than luminance/chrominance input machines. Further investigation required.
2018-11-24 21:30:09 -05:00
Thomas Harte
95685749ad
Attempts fully to implement the S-Video pipeline, without success.
2018-11-24 18:51:07 -05:00
Thomas Harte
d7c0f0c804
Switches to an ordinary sampler for scan processing.
2018-11-24 18:03:44 -05:00
