Thomas Harte
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4a0e1dc789
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Switched to explicit flushing of data.
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2016-05-01 22:33:00 -04:00 |
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Thomas Harte
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c93bcf9f28
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Discovered cause of clears: stale code. Tweaked persistence, again.
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2016-05-01 22:28:33 -04:00 |
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Thomas Harte
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09ed8eb654
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Quelle surprise, failure to find strikes again. Fixed.
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2016-05-01 21:07:27 -04:00 |
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Thomas Harte
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1b6754c5f8
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Shuffled code, realised I wasn't actually binding my shader.
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2016-05-01 19:22:24 -04:00 |
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Thomas Harte
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69984b54e5
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Fixed aspect ratio storage. Adjusted indentation slightly.
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2016-05-01 16:49:44 -04:00 |
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Thomas Harte
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6982e945fb
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Fixed those issues breaking GL state, I hope.
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2016-05-01 16:17:52 -04:00 |
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Thomas Harte
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4ec4cceb84
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Made a first attempt at adding draw-as-a-quad functionality to texture targets.
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2016-05-01 13:52:35 -04:00 |
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Thomas Harte
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2616d748fe
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Introduced bind-if-necessary/unbind semantics for shaders.
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2016-05-01 11:07:49 -04:00 |
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Thomas Harte
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fe2abbd4ed
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Minor adjustments to ensure sampling occurs as intended.
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2016-04-30 20:48:09 -04:00 |
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Thomas Harte
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16ef09fc2b
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Made an attempt intelligently to use bilinear filtering to increase filtering quality with the same number of samples.
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2016-04-29 18:37:35 -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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23ea832f41
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Increased brightness in television mode, added a clear if screen resolution changes.
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2016-04-28 22:04:47 -04:00 |
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Thomas Harte
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3638414b37
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Added additional comments.
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2016-04-28 21:55:14 -04:00 |
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Thomas Harte
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e6c3b148ac
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Switched wholeheartedly to the new shader.
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2016-04-28 21:45:44 -04:00 |
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Thomas Harte
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8538b62ea2
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Made an attempt to extract and consolidate the logic behind the intermediate shaders.
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2016-04-28 21:04:59 -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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87c778ebb7
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Fixed code use of parameter name.
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2016-04-27 22:58:53 -04:00 |
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Thomas Harte
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494ef6a324
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Updated documentation, taking the opportunity to improve a parameter name.
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2016-04-27 22:57:40 -04:00 |
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Thomas Harte
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7c20fce467
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I guess NumberOfFields is done for.
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2016-04-27 22:48:37 -04:00 |
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Thomas Harte
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8849dc3265
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Finished consolidation into OutputShader. With its documentation yet to update.
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2016-04-27 22:41:32 -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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f6d58f1ce7
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Played in the margins with image retention.
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2016-04-26 22:14:12 -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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3af97d4069
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Eliminated redundant variable.
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2016-04-26 19:57:05 -04:00 |
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Thomas Harte
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345348aeb7
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Merge branch 'master' of github.com:TomHarte/CLK
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2016-04-25 22:41:15 -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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973a53744b
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Switched from asterisks for footnote marks, per Markdown requirements.
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2016-04-25 13:09:35 -04:00 |
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Thomas Harte
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3341e3550b
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Filled in some detail on the TV emulation.
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2016-04-25 13:08:22 -04:00 |
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Thomas Harte
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51c1562eee
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Update README.md
Provided further exposition
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2016-04-25 10:19:51 -04:00 |
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Thomas Harte
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6d769b3639
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Merge pull request #1 from TomHarte/Electron
Adds Acorn Electron emulation, significantly improving the CRT and timing in general and adding sound output for the general-use code.
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2016-04-24 22:33:20 -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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7a8d100861
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Found a new working formula for NTSC Atari 2600 colours.
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2016-04-24 22:02:00 -04:00 |
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Thomas Harte
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884755c560
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Ensured the GL context is available when switching Atari 2600 output, and that it locks the output.
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2016-04-24 20:56:21 -04:00 |
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Thomas Harte
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2bd6566768
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Oh, of course, I can use GL_CONSTANT_ALPHA so that new colours can be painted at alpha 1.0 while possibly saturating with old colours.
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2016-04-24 20:47:24 -04:00 |
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Thomas Harte
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d221c712b0
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Ensured GL context is active when destructing CRTOpenGL.
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2016-04-24 20:34:25 -04:00 |
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Thomas Harte
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acab22d95a
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Removed any improper talk of YUV. Switched to (cos, -sin) formulation of the quadrature vector, which I now believe to be correct.
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2016-04-24 20:27:03 -04:00 |
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Thomas Harte
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d393776677
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Fixed an incorrect sign.
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2016-04-24 19:29:30 -04:00 |
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Thomas Harte
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db908a7547
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Adjusted Atari to using its non-standard line lengths.
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2016-04-24 19:23:30 -04:00 |
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Thomas Harte
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9b2b7a09eb
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Ensured that colour space changes take effect.
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2016-04-24 19:16:23 -04:00 |
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Thomas Harte
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929cfc49cb
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Extended window for picking output frequency, attempted to consolidate CRT OpenGL timing uniforms for approprate resetting.
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2016-04-24 18:58:31 -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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9260d97b03
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Oh, of course, it's that the output vertex array doesn't get initialised unless there's an RGB shader program. Silly oversight. Fixed. And switched back to TV output for correct colours.
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2016-04-24 17:56:36 -04:00 |
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Thomas Harte
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d0f9a6c2f5
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Added a dump-the-input default RGB output shader. Which at least proves that the Atari 2600 is generally still working.
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2016-04-24 17:35:25 -04:00 |
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Thomas Harte
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775fc270e6
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Fixed bug whereby first frame drawn has random collection of data.
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2016-04-24 07:00:22 -04:00 |
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Thomas Harte
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80a3169674
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Started reviving the Atari 2600 emulation. Put new startup sequence into place.
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2016-04-24 06:56:08 -04:00 |
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Thomas Harte
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bdaf4cee43
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Switched to an in-framebuffer approach to phosphor decay, which might be acceptable now that every single pixel is being painted, re-emphasises luminance and stretched sampling period for the two FIR filters as well as decreasing the amount of signal that is retained, subjectively to improve output.
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2016-04-24 06:16:41 -04:00 |
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Thomas Harte
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c123f3bf74
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Fixed run extension, temporarily forced colour amplitude.
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2016-04-23 14:16:49 -04:00 |
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Thomas Harte
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a4889074b8
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Moved final colour space conversion out of the innermost loop.
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2016-04-22 21:29:27 -04:00 |
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Thomas Harte
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8ff1f82008
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Fixed accidental channel duplication.
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2016-04-22 19:18:28 -04:00 |
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Thomas Harte
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95639f1189
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Made attempt to introduce final filtering stage and output.
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2016-04-22 19:15:59 -04:00 |
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