Thomas Harte
53a3d9042e
Switch to multiline strings, shorter comments.
2025-10-06 22:58:50 -04:00
Thomas Harte
27246247a2
OpenGL: fix centring.
2025-10-06 20:58:42 -04:00
Thomas Harte
de78fb7a1c
Eliminate all references to M_PI.
2025-04-24 21:57:29 -04:00
Ryan Carsten Schmidt
5ef6b190af
Fix typos
2023-12-16 03:53:07 -06:00
Thomas Harte
50343dec43
Eliminate all whitespace-only lines.
2023-05-12 14:16:39 -04:00
Icecream95
0499dbd4cf
Align Scan to be a multiple of four bytes
...
Some GPUs (e.g. r600) require the stride of vertex attributes to be a
multiple of four bytes, add two bytes of padding to the Scan struct to
meet this alignment requirement and reduce driver CPU overhead.
2022-08-29 16:32:25 +12:00
Thomas Harte
5ee9630624
Use compositeAmplitude in favour of its reciprocal.
2020-11-28 19:53:34 -05:00
Thomas Harte
1b3836eb1c
Adds an overt branch for mono/colour composite selection.
2020-11-28 19:47:04 -05:00
Thomas Harte
33dec3c220
Given that lineCompositeAmplitude is not normalised, ups threshold.
2020-11-28 17:19:28 -05:00
Thomas Harte
0b4b271e3d
Pulls out redundant check.
2020-11-27 21:04:20 -05:00
Thomas Harte
807cb99f6d
Composite angles are signed.
2020-08-23 21:39:04 -04:00
Thomas Harte
8b6879a782
Brief detour: introduces myself to C++11 multiline string literals.
...
A full cleaning coming soon, I imagine.
2020-08-23 21:18:38 -04:00
Thomas Harte
2470055d90
Hides the modals.
2020-07-27 23:33:39 -04:00
Thomas Harte
2230ac6c38
Merge pull request #800 from TomHarte/QtProject
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UNREADY. Adds a provisional Qt target.
2020-07-06 22:33:39 -04:00
Thomas Harte
267006782f
Starts to add Qt target; resolves many build warnings.
2020-05-30 00:37:06 -04:00
Melissa Goad
603b747ac5
Fix Windows MSYS2 build (mostly)
2020-05-27 18:09:56 -05:00
Thomas Harte
e9318efeb6
Switches to std::make_shared/make_unique in a bunch of applicable places.
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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
f6f9024631
Corrects Macintosh aspect ratio (and framing).
2019-06-13 18:41:38 -04:00
Thomas Harte
5b8375f0a0
Disallows smaller buffer use for 'sharp' displays and tightens sampling window.
2019-06-03 15:57:31 -04:00
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
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
6d76b7cd94
Attempts to ensure proper colour output during alternating PAL lines.
2019-02-17 21:50:15 -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
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.
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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
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
e5f75b5df2
Resolves repetition between svideo_sample and composite_sample.
2019-02-03 22:09:16 -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
5002290428
Makes consistent use of textureLod rather than texture.
2019-01-26 22:05:15 -05:00
Thomas Harte
b6a4a7e0a5
This is no longer TODO.
2019-01-25 22:47:15 -05:00
Thomas Harte
85ad490089
Offers a less error-prone route to attribute binding.
2019-01-25 21:56:55 -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
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.
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All dropping out during the never-ending diagnosis at play here.
2019-01-22 22:20:12 -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
6c49953115
Returns gamma correction, and corrects Amstrad CPC brightness.
2019-01-14 22:56:08 -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
