Thomas Harte
c8c24f81c8
Merge pull request #581 from TomHarte/ScanTarget
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Decouples output of raster scans from their generation
2019-02-27 18:52:19 -05:00
Thomas Harte
db078c7363
Minor tweak: don't start counting phase from zero.
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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.
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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.
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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
7030abca97
Corrects PAL colours for the Vic-20.
2019-02-25 19:28:52 -05:00
Thomas Harte
c7c21a7e2c
Sorry, ColecoVision, it's composite only for you.
2019-02-24 22:37:24 -05:00
Thomas Harte
b23e10e261
Improves error messaging and avoids trying to use a null window.
2019-02-24 22:31:59 -05:00
Thomas Harte
16731661e8
Switches back to being explicit about the colour burst phase.
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Some sort of phase inversion otherwise seems to be achievable by software that switch modes often.
2019-02-24 22:28:11 -05:00
Thomas Harte
7bb90c78d9
Resolves out-of-bounds initial condition whenever this loop began with start_line = 2047.
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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.
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The change was related to debugging; it was not intentionally committed.
2019-02-24 14:36:08 -05:00
Thomas Harte
d4134cd0d8
Restores proper colour phase to the Apple II.
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Given that its timing errors were fixed, this also switches back to using 'default' colour bursts — i.e. ones with implicit phase. The Apple II continues to be an excellent bellwether for issues in the pipeline, and this helps further to ensure that.
2019-02-24 14:35:13 -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.
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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.
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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
ec14750ff1
Minor text improvement.
2019-02-20 22:32:42 -05:00
Thomas Harte
e43de5f1ba
Allows for failure to get a GL context as a reportable issue.
2019-02-20 22:06:22 -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
d0b967ce53
Corrects typo; disables original colour ROM usage for now.
2019-02-18 20:49:54 -05:00
Thomas Harte
e5addb27ec
Corrects log output.
2019-02-18 20:49:01 -05:00
Thomas Harte
ac8d43cc4a
Improves use of const.
2019-02-18 20:21:41 -05:00
Thomas Harte
40ee215b1b
By #define provides a means not to use the real composite samples.
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To aid with debugging.
2019-02-18 17:20:52 -05:00
Thomas Harte
6c1d94beaa
Adds composite monochrome output for the Oric. At least temporarily.
2019-02-18 16:56:48 -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
7939897622
Fixes announced timing difference between pixel and border lines.
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The Apple II sync fault is now fixed!
2019-02-12 22:32:02 -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
5d68a5bdd0
Merge pull request #588 from TomHarte/SeparateChromaBuffer
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Reintroduces a separate chrominance buffer
2019-02-12 19:52:54 -05:00
Thomas Harte
3e0b5433b9
Institutes colour/monochrome screen selection as an Apple II option.
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Allowing me to test that straight-through composite still works.
2019-02-12 19:52:32 -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.
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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
