Thomas Harte
|
4ec4cceb84
|
Made a first attempt at adding draw-as-a-quad functionality to texture targets.
|
2016-05-01 13:52:35 -04:00 |
|
Thomas Harte
|
2616d748fe
|
Introduced bind-if-necessary/unbind semantics for shaders.
|
2016-05-01 11:07:49 -04:00 |
|
Thomas Harte
|
fe2abbd4ed
|
Minor adjustments to ensure sampling occurs as intended.
|
2016-04-30 20:48:09 -04:00 |
|
Thomas Harte
|
16ef09fc2b
|
Made an attempt intelligently to use bilinear filtering to increase filtering quality with the same number of samples.
|
2016-04-29 18:37:35 -04:00 |
|
Thomas Harte
|
501ab74eaf
|
Fixed time multiplier calculation.
|
2016-04-28 22:12:59 -04:00 |
|
Thomas Harte
|
23ea832f41
|
Increased brightness in television mode, added a clear if screen resolution changes.
|
2016-04-28 22:04:47 -04:00 |
|
Thomas Harte
|
3638414b37
|
Added additional comments.
|
2016-04-28 21:55:14 -04:00 |
|
Thomas Harte
|
e6c3b148ac
|
Switched wholeheartedly to the new shader.
|
2016-04-28 21:45:44 -04:00 |
|
Thomas Harte
|
8538b62ea2
|
Made an attempt to extract and consolidate the logic behind the intermediate shaders.
|
2016-04-28 21:04:59 -04:00 |
|
Thomas Harte
|
ef3647f6cf
|
Being bold: per-scan timing isn't coming back, I think, so started completely removing it.
|
2016-04-27 23:00:43 -04:00 |
|
Thomas Harte
|
87c778ebb7
|
Fixed code use of parameter name.
|
2016-04-27 22:58:53 -04:00 |
|
Thomas Harte
|
494ef6a324
|
Updated documentation, taking the opportunity to improve a parameter name.
|
2016-04-27 22:57:40 -04:00 |
|
Thomas Harte
|
7c20fce467
|
I guess NumberOfFields is done for.
|
2016-04-27 22:48:37 -04:00 |
|
Thomas Harte
|
8849dc3265
|
Finished consolidation into OutputShader. With its documentation yet to update.
|
2016-04-27 22:41:32 -04:00 |
|
Thomas Harte
|
496d979aca
|
Made a decision to clean up by creating per-shader classes. Well, more or less. First thing to be factored out: the output shader.
|
2016-04-27 22:29:54 -04:00 |
|
Thomas Harte
|
f6d58f1ce7
|
Played in the margins with image retention.
|
2016-04-26 22:14:12 -04:00 |
|
Thomas Harte
|
416c944f02
|
Experimental: let's try accumulating history directly in the framebuffer.
|
2016-04-26 21:41:39 -04:00 |
|
Thomas Harte
|
6c567d166a
|
Fixed colour burst acceptance, switched to an integral single byte streaming of Atari colours.
|
2016-04-25 20:56:15 -04:00 |
|
Thomas Harte
|
9b64f64db7
|
Attempted to normalise some style decisions.`
|
2016-04-24 22:32:24 -04:00 |
|
Thomas Harte
|
884755c560
|
Ensured the GL context is available when switching Atari 2600 output, and that it locks the output.
|
2016-04-24 20:56:21 -04:00 |
|
Thomas Harte
|
2bd6566768
|
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.
|
2016-04-24 20:47:24 -04:00 |
|
Thomas Harte
|
d221c712b0
|
Ensured GL context is active when destructing CRTOpenGL.
|
2016-04-24 20:34:25 -04:00 |
|
Thomas Harte
|
acab22d95a
|
Removed any improper talk of YUV. Switched to (cos, -sin) formulation of the quadrature vector, which I now believe to be correct.
|
2016-04-24 20:27:03 -04:00 |
|
Thomas Harte
|
d393776677
|
Fixed an incorrect sign.
|
2016-04-24 19:29:30 -04:00 |
|
Thomas Harte
|
9b2b7a09eb
|
Ensured that colour space changes take effect.
|
2016-04-24 19:16:23 -04:00 |
|
Thomas Harte
|
929cfc49cb
|
Extended window for picking output frequency, attempted to consolidate CRT OpenGL timing uniforms for approprate resetting.
|
2016-04-24 18:58:31 -04:00 |
|
Thomas Harte
|
082003ed0a
|
Reintroduced the CRT delegate and the 2600's automatic region switching. Albeit that the CRT itself doesn't adjust properly to new timings yet.
|
2016-04-24 18:36:22 -04:00 |
|
Thomas Harte
|
d0f9a6c2f5
|
Added a dump-the-input default RGB output shader. Which at least proves that the Atari 2600 is generally still working.
|
2016-04-24 17:35:25 -04:00 |
|
Thomas Harte
|
775fc270e6
|
Fixed bug whereby first frame drawn has random collection of data.
|
2016-04-24 07:00:22 -04:00 |
|
Thomas Harte
|
80a3169674
|
Started reviving the Atari 2600 emulation. Put new startup sequence into place.
|
2016-04-24 06:56:08 -04:00 |
|
Thomas Harte
|
bdaf4cee43
|
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.
|
2016-04-24 06:16:41 -04:00 |
|
Thomas Harte
|
c123f3bf74
|
Fixed run extension, temporarily forced colour amplitude.
|
2016-04-23 14:16:49 -04:00 |
|
Thomas Harte
|
a4889074b8
|
Moved final colour space conversion out of the innermost loop.
|
2016-04-22 21:29:27 -04:00 |
|
Thomas Harte
|
8ff1f82008
|
Fixed accidental channel duplication.
|
2016-04-22 19:18:28 -04:00 |
|
Thomas Harte
|
95639f1189
|
Made attempt to introduce final filtering stage and output.
|
2016-04-22 19:15:59 -04:00 |
|
Thomas Harte
|
23311d633b
|
Doubled phosphor life, added comment on required final stage fix for tomorrow.
|
2016-04-21 23:15:48 -04:00 |
|
Thomas Harte
|
59c07f7ddd
|
This, at least, is an attempt to decode chrominance, as yet unfiltered, and not commuted to RGB (and possibly packed incorrectly).
|
2016-04-21 23:01:54 -04:00 |
|
Thomas Harte
|
cc7bf97a9c
|
This now attempts to filter y.
|
2016-04-21 22:32:30 -04:00 |
|
Thomas Harte
|
e7ed1224a5
|
Introduced the second filtering stage, albeit that it presently does nothing whatsoever.
|
2016-04-21 21:32:36 -04:00 |
|
Thomas Harte
|
23ce032ba1
|
Started edging towards the necessary flexibility for the other two intermediate shaders.
|
2016-04-21 20:21:34 -04:00 |
|
Thomas Harte
|
4b9985626d
|
Started commuting alpha to direction. The incoming amplitude is now honoured.
|
2016-04-21 19:53:41 -04:00 |
|
Thomas Harte
|
638b08302b
|
The initial composite buffer is now genuinely a composite signal.
|
2016-04-21 19:37:32 -04:00 |
|
Thomas Harte
|
d9a9dffe63
|
Factored out wraparound buffer addressing where it's otherwise going to get really repetitive; need to look at using the same approach for the glTexSubImage2D step at least but that probably means properly encapsulating the buffer builder's state.
|
2016-04-20 21:05:32 -04:00 |
|
Thomas Harte
|
8232ed765e
|
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.
|
2016-04-20 20:44:25 -04:00 |
|
Thomas Harte
|
e2da77fb8b
|
Clarified constants, ensured monitor mode works from startup.
|
2016-04-19 22:53:39 -04:00 |
|
Thomas Harte
|
ef83595af3
|
Fixed: issue was (i) always thinking the entire source run buffer needed to be issued; and (ii) having fixed that, always thinking that the block that needs redrawing doesn't overflow the buffer. Fixed both. 'Television' mode is now working without explicit synchronisation (and with a lot less work).
|
2016-04-19 22:38:11 -04:00 |
|
Thomas Harte
|
3d7a3ce995
|
Eliminated some redundant texture binds.
|
2016-04-19 22:30:05 -04:00 |
|
Thomas Harte
|
145c0b3b71
|
Smoothed output device changes, killing some dead state. Added an explicit glFinish to suggest that the problem is synchronisation rather than any sort of data or shader error.
|
2016-04-19 22:21:26 -04:00 |
|
Thomas Harte
|
66f2c10c04
|
Resolved potential crash if tape requests are made without one inserted. Softened glFinish to glFlush, though I'm still not sure I should strictly need even that.
|
2016-04-19 21:00:48 -04:00 |
|
Thomas Harte
|
88e237b8de
|
Standardised indentation and added one extra piece of documentation.
|
2016-04-19 20:53:55 -04:00 |
|