Thomas Harte
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4d6e78e641
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Reinstated temporary Oric-related fix.
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2017-01-24 22:16:15 -05:00 |
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Thomas Harte
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d0a93409e6
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Made an attempt to simplify in-shader phase calculation, now that output position is a direct multiple of phase.
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2017-01-11 08:18:00 -05:00 |
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Thomas Harte
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4c3669f210
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Reduced precision of input phase, but I'm not necessarily persuaded by it as a move. However it's clear that something is off in that whole area. But if phase is locked by output position, do I need to retain this level of complexity? Also ensured that intermediate buffers prior to the final are sampled using the nearest sampling mode, also to reduce precision errors.
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2017-01-10 22:08:07 -05:00 |
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Thomas Harte
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d2a7d39749
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Ensured the output lock isn't held while talking to the delegate.
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2017-01-08 19:49:21 -05:00 |
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Thomas Harte
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5740015f56
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Temporarily disabled composite processing to show the pure stream. Fixed both automatic calculations of phase — per line and, at input, per pixel.
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2017-01-07 12:38:00 -05:00 |
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Thomas Harte
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c84004bfa3
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Fixed: colour_cycle_numerator_ doesn't need to be multiplied by the time multiplier because it'll get that for free from the calculation of next_run_length.
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2017-01-06 21:36:19 -05:00 |
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Thomas Harte
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a549fd1ecc
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Introduced the ability simply to piggy-back off the CRT's natural phase for the colour burst, thereby eliminating a couple of redundant independent attempts in the Oric and Electron.
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2016-12-10 13:42:34 -05:00 |
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Thomas Harte
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5216dda675
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Added some brief extra exposition to the texture builder, cut all internal tex_x/y and source_divider stuff from the CRT.
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2016-12-06 19:08:55 -05:00 |
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Thomas Harte
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4ff33254e1
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Sought to shift locking back up to the CRT. And to be a bit more RAII-ish.
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2016-12-06 18:48:30 -05:00 |
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Thomas Harte
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0fee8096c1
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Made an attempt to shuffle the texture builder to a similar flush/submit pattern as the input builder. Don't care about thread safety yet, as it's obvious I'm going to need to move that back up to the CRT.
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2016-12-06 07:24:07 -05:00 |
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Thomas Harte
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0edc043378
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Started introducing an extra layer of indirection so as to be able to bind the texture builder to the same flush and submit patern as the array builder.
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2016-12-03 20:47:19 -05:00 |
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Thomas Harte
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cb3c837e30
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Simplified interface by baking in last-minute-only updates.
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2016-12-03 18:19:12 -05:00 |
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Thomas Harte
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5bc165960a
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Completed refactoring.
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2016-11-20 09:12:06 +08:00 |
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Thomas Harte
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aca1fa0577
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Returned some video output. Enough significantly to reduce my paranoia.
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2016-11-17 13:37:53 +08:00 |
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Thomas Harte
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1f91d29434
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Progressed to usage of an array builder and a texture builder up to the point of a successful build.
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2016-11-17 12:26:04 +08:00 |
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Thomas Harte
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0f3b02edb7
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Switched to postfix underscores and gave this class ownership of a texture builder and an array builder, though it presently uses neither.
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2016-11-17 11:00:11 +08:00 |
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Thomas Harte
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6cb4950db4
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Improved run-off area.
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2016-11-16 11:53:15 +08:00 |
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Thomas Harte
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9ee11d7765
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At the expense of API simplicity, at least for now, resolved the most glaring cause of dirty lines.
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2016-11-16 11:34:05 +08:00 |
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Thomas Harte
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294adde344
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Eliminated zoned clearing, in favour of a complete buffer clear on each load and attempted to reduce locking. But imperfectly.
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2016-11-16 10:59:12 +08:00 |
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Thomas Harte
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c628b7c5c5
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This is the real PAL frequency, I think.
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2016-10-17 08:05:02 -04:00 |
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Thomas Harte
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2bd71e7e9b
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.reset is the more normal way to reassign a unique_ptr.
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2016-06-23 20:52:44 -04:00 |
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Thomas Harte
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c18cc4c8f5
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It appears the Vic's output is sine-ish, after all. Also adjusted centre of display, simultaneously adding some validation on that.
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2016-06-14 07:29:35 -04:00 |
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Thomas Harte
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6d65bc9b3a
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Permitted a wider error window on vertical sync, tidied things up a little and started trying to move towards full implementation of the OpenGL contract.
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2016-05-11 22:11:01 -04:00 |
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Thomas Harte
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4b3c4082d2
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These functions appear correctly to model the NTSC and PAL palettes; the CRT's attempt to switch function doesn't work properly yet though.
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2016-05-11 21:07:18 -04:00 |
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Thomas Harte
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b6d2c8cb63
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Switched to instaced drawing for source[/intermediate] runs too, reducing that data transfer footprint by 50%.
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2016-05-10 19:50:12 -04:00 |
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Thomas Harte
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7369139f7e
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Realised that phase time can fit inside a single byte, since it's always (well) within the first quarter of the line — and if it somehow weren't (?) then taking it modulo the frequency would do.
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2016-05-10 19:14:57 -04:00 |
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Thomas Harte
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257420b0f7
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Fixed potential output error if buffer top were hit; clarified buffer size constants.
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2016-05-10 19:04:03 -04:00 |
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Thomas Harte
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1d0bcb416d
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Dropped the size per output run back down to 8 bytes.
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2016-05-10 07:47:47 -04:00 |
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Thomas Harte
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86dab3a5d6
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Quickest first attempt to switch to instancing for the output array. Texture coordinates seem to be off.
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2016-05-10 07:23:47 -04:00 |
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Thomas Harte
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cec9ad0dc6
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Switched to a more rational interface, ensured output_level will work when eventually needed, and that neither it nor output_data attempts a recursive lock.
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2016-05-09 07:02:12 -04:00 |
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Thomas Harte
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a82fa31370
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Switched back to broad locking for CRT updates. To eliminate one more thing.
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2016-05-09 06:58:26 -04:00 |
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Thomas Harte
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47302de23a
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Switched to simpler storage for _image.
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2016-05-08 21:11:56 -04:00 |
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Thomas Harte
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986019f9f9
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Fixed error that could lead to split output run vertex writes.
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2016-05-08 20:30:59 -04:00 |
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Thomas Harte
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9485ef2c8c
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At last a genuine bug fixed: was nudging the wrong amount in intermediate shaders.
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2016-05-08 16:07:36 -04:00 |
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Thomas Harte
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8e4ab37719
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Things are back pretty much to where they were, but offset is eliminated as an input.
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2016-05-07 18:37:18 -04:00 |
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Thomas Harte
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284b310074
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Attempted to implement end-of-buffer tests for all stages.
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2016-05-05 19:52:05 -04:00 |
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Thomas Harte
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87df57195d
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Started on an attempt not to treat the various buffers as free to loop within, starting with the input texture.
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2016-05-04 07:39:45 -04:00 |
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Thomas Harte
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2541711061
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Made attempts (i) to flush buffers before unmapping them; and (ii) to bring texture uploads within the new orthodoxy.
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2016-05-03 20:56:47 -04:00 |
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Thomas Harte
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fc1a67c157
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Lateral is no longer written per vertex. It's a fixed list.
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2016-05-03 18:45:55 -04:00 |
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Thomas Harte
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29e7c96e4c
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Brought monitor mode inside the pipeline and added an intermediate filter.
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2016-05-02 21:05:58 -04:00 |
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Thomas Harte
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501ab74eaf
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Fixed time multiplier calculation.
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2016-04-28 22:12:59 -04:00 |
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Thomas Harte
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ef3647f6cf
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Being bold: per-scan timing isn't coming back, I think, so started completely removing it.
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2016-04-27 23:00:43 -04:00 |
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Thomas Harte
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496d979aca
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Made a decision to clean up by creating per-shader classes. Well, more or less. First thing to be factored out: the output shader.
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2016-04-27 22:29:54 -04:00 |
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Thomas Harte
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416c944f02
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Experimental: let's try accumulating history directly in the framebuffer.
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2016-04-26 21:41:39 -04:00 |
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Thomas Harte
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6c567d166a
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Fixed colour burst acceptance, switched to an integral single byte streaming of Atari colours.
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2016-04-25 20:56:15 -04:00 |
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Thomas Harte
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9b64f64db7
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Attempted to normalise some style decisions.`
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2016-04-24 22:32:24 -04:00 |
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Thomas Harte
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082003ed0a
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Reintroduced the CRT delegate and the 2600's automatic region switching. Albeit that the CRT itself doesn't adjust properly to new timings yet.
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2016-04-24 18:36:22 -04:00 |
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Thomas Harte
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23ce032ba1
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Started edging towards the necessary flexibility for the other two intermediate shaders.
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2016-04-21 20:21:34 -04:00 |
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Thomas Harte
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4b9985626d
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Started commuting alpha to direction. The incoming amplitude is now honoured.
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2016-04-21 19:53:41 -04:00 |
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Thomas Harte
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8232ed765e
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Eliminated use of zero-alpha runs to clear new lines in the intermediate buffer in favour of a scissored glClear. It's just an easier way to scale the current approach to three intermediate buffers.
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2016-04-20 20:44:25 -04:00 |
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