Thomas Harte
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218b976dbc
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Adds through route for setting a texture bookender, and exploits it from the Electron.
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2017-10-23 18:35:37 -04:00 |
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Thomas Harte
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ba5f668338
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Ensured full CRT instance initialisation.
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2017-10-17 22:34:10 -04:00 |
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Thomas Harte
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ce78d9d12c
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Introduces buffer alignment when writing to textures.
To avoid cross-boundary writes and hopefully to eke out a little better performance.
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2017-10-17 22:09:48 -04:00 |
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Thomas Harte
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ad8c8166bc
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Built in gamma conversion for all machines, assuming an output of 2.8 for PAL, 2.2 for NTSC.
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2017-08-10 15:17:08 -04:00 |
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Thomas Harte
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ed8c73eb14
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Ensured lengthy constant sync can't appear to be two sync pulses, regardless of other interruption.
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2017-07-29 18:25:04 -04:00 |
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Thomas Harte
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3528a7f78b
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Made an attempt at triggering vertical sync the expected number of time after it begins, regardless of total length.
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2017-07-29 17:33:52 -04:00 |
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Thomas Harte
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54bcc40192
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With an eye towards being more accurate as to vertical sync recognition: acknowledged that the detection period varies between PAL and NTSC.
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2017-07-29 14:53:53 -04:00 |
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Thomas Harte
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be750ee427
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Eliminated all dangling implicit signedness conversions.
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2017-07-21 21:52:37 -04:00 |
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Thomas Harte
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12f7e1b804
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Enshrined a default colour burst amplitude. Which now everybody relies on. The 102 figure is derived from the burst apparently being 40 IRE.
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2017-07-07 23:35:14 -04:00 |
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Thomas Harte
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a5075d9eb5
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Formalised the reasoning behind the colour phase fix-up and made it an opt-in per-caller value. Only the Oric currently needs to opt in.
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2017-05-16 20:31:39 -04:00 |
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Thomas Harte
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e01f3f06c8
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Completed curly bracket movement.
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2017-03-26 14:34:47 -04:00 |
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Thomas Harte
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e63229a5e5
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Pulled vertical sync detection entirely outside the loop, and gave it greater perspective.
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2017-03-06 19:15:33 -05:00 |
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Thomas Harte
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ad73379d1c
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Took vertical sync detection logic entirely out of the loop.
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2017-03-05 20:17:55 -05:00 |
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Thomas Harte
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d19f26887d
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Performed a very naive shuffling of output builder sets onto the OpenGL queue. Which makes the frequency switcher work properly from it's possibly-contextless thread.
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2017-02-20 10:39:31 -05:00 |
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Thomas Harte
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6cb95b4fc5
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Switched to passing around std::strings rather than char *s, because they should be easier to capture.
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2017-02-20 10:35:33 -05:00 |
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Thomas Harte
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d979a822ac
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Introduced a deferred task list for the OpenGL thread.
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2017-02-19 21:46:07 -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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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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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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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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1f857c619b
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Fixed timing issues. Static box of frame achieved!
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2016-10-12 21:42:36 -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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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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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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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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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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4be8053ba9
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Updated documentation.
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2016-04-12 22:38:49 -04:00 |
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Thomas Harte
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7276a06cc0
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Added a helper to calculate a visible rect based on output timings, used it to scale the Electron output up to the full window size.
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2016-04-11 21:47:23 -04:00 |
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Thomas Harte
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aa8a192c7e
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Simplified API down to their being a single texture with a specified depth.
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2016-03-19 17:37:55 -04:00 |
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Thomas Harte
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4ac1f959e9
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A shortcut here and a shortcut there; this allows me at least to determine whether use of a PBO gains anything.
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2016-03-19 17:07:05 -04:00 |
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Thomas Harte
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67dffc89e0
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Stripped unnecessary includes.
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2016-03-13 13:25:34 -04:00 |
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Thomas Harte
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7255408313
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Experimented with going back to horizontal sync on leading edge; not sure so (temporarily?) disabled.
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2016-03-08 22:54:05 -05:00 |
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Thomas Harte
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bf5747f83e
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Made an attempt to chop out all the stuff of building up the OpenGL data from the stuff of parsing input.
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2016-03-08 22:40:23 -05:00 |
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Thomas Harte
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14b2927275
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Made further attempts to tidy up; trying to demarcate between public interface and private.
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2016-03-08 20:59:16 -05:00 |
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Thomas Harte
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c7976dd657
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Started trying to clean up my Outputs namespace by moving stuff related to the CRT underneath a separate subnamespace.
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2016-03-08 20:49:07 -05:00 |
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Thomas Harte
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bb09a5f58c
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The attribute locations don't really need to be stored. They can be transient.
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2016-03-07 21:42:21 -05:00 |
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Thomas Harte
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1e5fe2b2c1
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Made an attempt to reestablish the Atari 2600 output connection despite various changes (TODO: generalise that stuff), and to start creating the composite shader.
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2016-03-07 21:04:04 -05:00 |
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Thomas Harte
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cd9c62acca
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Still stepping slowly towards a working composite mode, switched the RGB sampling function to returning a vec4, which may be of benefit to any machine with a brightness part of an RGB signal, and started edging towards at least having the correct GLSL programs ready for converting composite output.
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2016-03-07 19:08:26 -05:00 |
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Thomas Harte
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3f39803d32
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Switched to triangle strips, to eliminate the need for any temporary storage for the composite output path.
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2016-03-05 20:47:11 -05:00 |
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Thomas Harte
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23c223e2ed
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Started edging towards completing the CPU side of accumulating enough data for composite decoding.
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2016-03-05 17:55:18 -05:00 |
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Thomas Harte
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70b6d51451
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Ever more baby steps back towards composite decoding.
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2016-03-05 14:36:12 -05:00 |
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Thomas Harte
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7839d93344
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With the provision of an extra hint to the CRT and, finally, the realisation about why my scans weren't exactly joining up, improved output precision.
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2016-02-27 22:39:01 -05:00 |
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Thomas Harte
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1c6de7692d
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Made an attempt to fix tape output interrupts; offloaded raster width and placing conversion to the GPU.
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2016-02-27 20:37:41 -05:00 |
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Thomas Harte
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db18c85423
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Simplified the run builder rather; put a double check of Electron timing in place.
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2016-02-25 22:01:42 -05:00 |
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Thomas Harte
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574985f9a2
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Fixed interlaced timing; switched to a more robust detector for horizontal sync; eliminated some test logging.
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2016-02-20 20:29:40 -05:00 |
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Thomas Harte
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00f414d757
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Made an attempt to reintroduce interlacing and screen modes with gaps. Something's wrong with synchronisation though, so most likely I'm outputting a bad signal.
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2016-02-20 17:32:51 -05:00 |
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Thomas Harte
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1954f7bcbd
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Got back to a stable image, at least when staying in a mode. Which is what I was trying to fix. Hmmm.
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2016-02-19 23:41:09 -05:00 |
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Thomas Harte
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697e50c0cc
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Screen output is back, no matter how inefficiently.
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2016-02-13 23:50:18 -05:00 |
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Thomas Harte
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eeb0e134fd
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Started the transition towards a more natural collection of rolling buffers, with phosphor decay in mind.
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2016-02-13 20:52:23 -05:00 |
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Thomas Harte
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0a09762be6
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Fixed output precision compared to the new approach of trusting the flywheel for position, and eliminated fixed-Acorn constants. Also re-enabled the faded previous frame, at least temporarily.
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2016-02-12 19:53:49 -05:00 |
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Thomas Harte
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1d20a29d97
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Made an attempt to switch to the flywheels for both vertical and horizontal sync, and to act more appropriately for out-of-bounds sync requests. Lots of tweaking to do, I fear.
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2016-02-11 23:43:08 -05:00 |
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Thomas Harte
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c81891ec43
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Minor tidying and at least acknowledged the new flywheel encapsulation.
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2016-02-11 22:13:38 -05:00 |
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Thomas Harte
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c66409421e
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Switched to generating an interlaced output, that apparently being correct. Enabled a poor man's version of phosphor persistence to smooth things out a little. It's not completely unconvincing.
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2016-02-10 23:11:25 -05:00 |
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Thomas Harte
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b5bcadb8d3
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Reinstated clipped CRT output, with more appropriate ownership of the decision.
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2016-02-07 22:18:55 -05:00 |
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Thomas Harte
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3a689d14cc
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Added padding of supplied data to correct for any potential rounding errors when rendering.
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2016-02-07 20:29:32 -05:00 |
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Thomas Harte
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3a9ea66f8b
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Filled in shader class.
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2016-02-07 19:21:22 -05:00 |
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Thomas Harte
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4d0a218a57
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Certainly at least seriously considering a separate holder for the "compile a shader" logic. Otherwise taking steps back towards PAL/NTSC decoding.
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2016-02-07 17:32:38 -05:00 |
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thomasharte
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2cb12a7513
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Allowed overly aggressive allocations to be cleared up after the fact.
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2016-02-06 16:07:23 -05:00 |
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Thomas Harte
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6ab425deda
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There is now a semi-reasonable amount of screen output again.
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2016-02-05 21:35:39 -05:00 |
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Thomas Harte
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8bc3f8046d
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This endeavours to move everything into the CRT class except the final version of shader building.
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2016-02-04 22:57:46 -05:00 |
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Thomas Harte
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e0d51408e4
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Onward with carrying this through to the bitter end, this at least results in all the appropriate knowledge and call-ins occuring at the CRT.
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2016-02-04 22:28:50 -05:00 |
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