Thomas Harte
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5980f5e991
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Number of taps can be specified explicitly if you desire.
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2016-04-17 20:45:57 -04:00 |
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Thomas Harte
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499f7ace07
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Re-enabled working video output for the Electron for the day and consolidated the rough metric I'm using to pick a number of taps for the audio filter.
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2016-04-17 20:43:20 -04:00 |
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Thomas Harte
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9ede284eb6
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Added blanking source runs, ensuring the rolling buffer is appropriately cleared.
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2016-04-17 20:34:52 -04:00 |
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Thomas Harte
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43cae267f9
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Shuffled further in an attempt to get as far as having static but incorrectly-interpreted pixel data on screen. It's not currently static. So work to do.
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2016-04-17 18:08:05 -04:00 |
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Thomas Harte
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a8fbd82a3d
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Made an attempt at correctly mapping to eye coordinates.
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2016-04-17 17:21:24 -04:00 |
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Thomas Harte
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ece51917fa
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Added first attempt at performing the first step of television output: mapping from source data to the first of the processing buffers. It's immediately obvious that my eye coordinates are off.
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2016-04-17 17:17:59 -04:00 |
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Thomas Harte
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abce0ed3c4
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Added setup of the source vertex array.
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2016-04-17 16:17:23 -04:00 |
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Thomas Harte
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6ff9ffba6c
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Switching temporarily to an attempt to draw input runs as if RGB: shader compiles, fixed a race condition on out-of-bounds accesses for the source buffer.
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2016-04-17 15:51:28 -04:00 |
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Thomas Harte
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104f44f27f
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Attempted to improve deinterlacing, gave the CRT full control over blend mode, switched back to 2000000Mhz audio.
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2016-04-14 22:20:47 -04:00 |
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Thomas Harte
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323f1a24db
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Introduced blackout period solution to vertical sync confusing horizontal sync. Need to find out whether it's accurate.
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2016-04-14 20:30:45 -04:00 |
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Thomas Harte
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6a17c2992d
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Introduced a compile-time configurable audio divider, set it arbitrarily to '8' for now. Discovered why my graphics aren't centred and added a TODO.
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2016-04-13 22:31:59 -04:00 |
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Thomas Harte
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026ce0255f
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Source runs are now captured, and that buffer appropriately reset.
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2016-04-13 22:20:13 -04:00 |
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Thomas Harte
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2ea02ed127
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A source array buffer is also now created, mapped, unmapped, etc.
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2016-04-13 22:14:18 -04:00 |
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Thomas Harte
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04d1b65c93
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Reinstated texture target creation, cut them down to merely RGB.
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2016-04-12 22:48:47 -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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4d889d9c7f
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Made an attempt slightly to simplify the fragment processor, at both ends.
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2016-04-12 22:35:11 -04:00 |
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Thomas Harte
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fe8b0ebc7e
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Tidied up a little, mostly bumping things out of just-in-time creation that I can just do well in advance.
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2016-04-12 22:31:13 -04:00 |
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Thomas Harte
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069ec2e889
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In search of the cause of performance issues again, excised the per-pixel sin until it can be further evaluated.
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2016-04-11 23:13:54 -04:00 |
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Thomas Harte
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d100c755b7
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The final line runs on a diagonal. Leave room for that.
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2016-04-11 23:13:14 -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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e45fe43801
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Removed some dead caveman debugging.
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2016-04-10 23:02:34 -04:00 |
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Thomas Harte
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bdb99ba92f
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Corrections back towards composite output: fixed misnamed constant, ensured the CRT doesn't write nonsense to the output buffer, ensured it grows three vertices at a time rather than six when desired. Net effect should be that the output stage is working again, with the input processing remaining to fill in.
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2016-04-10 22:56:52 -04:00 |
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Thomas Harte
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8701366277
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Switched horizontal sync detection back to differential, switched the Electron to an XOR-style sync output (believed to be accurate, but I need to check), fixed some latent issues around vertical sync detection.
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2016-04-10 21:34:40 -04:00 |
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Thomas Harte
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fc5530b513
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Realising I've managed to confuse input and output, started shift to 'source' for what 'input' was.
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2016-04-10 15:58:43 -04:00 |
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Thomas Harte
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6dbd20ffde
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Expanded interface to rgb_sample to eliminate its need to make assumptions about globals, used expanded interface to compact Electron data to two pixels per byte.
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2016-04-05 20:32:55 -04:00 |
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Thomas Harte
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c0cd1ed89e
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Made an attempt to consolidate timestamp bases to a single vector and hence to lump all geometry into one or two calls, with no repetitive setting of a uniform. I'm not sure the result is correct yet.
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2016-04-04 21:57:27 -04:00 |
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Thomas Harte
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729fddea1c
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Switched to integer textures, likely to simplify for most use cases.
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2016-04-04 19:39:01 -04:00 |
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Thomas Harte
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3ca58b2a57
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Attemted further to diminish jumpiness.
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2016-03-22 22:07:30 -04:00 |
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Thomas Harte
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8cd5d40e00
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Made an attempt to reduce the amount of data heading to the GPU.
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2016-03-22 21:16:32 -04:00 |
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Thomas Harte
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3038704977
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Attempted to introduce a lowpass filter to the graphics output, reverted 6502 optimisations as seemingly not working.
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2016-03-21 22:01:25 -04:00 |
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Thomas Harte
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197cf2a834
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Commented out sync; it can probably be implicit.
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2016-03-20 21:42:05 -04:00 |
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Thomas Harte
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9da7716c72
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Attempted to simplify threading, thereby allowing machines to be constructed within a valid GL context, and started adding appropriate GL syncs. Which all oddly drops everything to a negligible FPS. Investigation will follow.
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2016-03-19 22:46:17 -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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5b37a651ac
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Made an attemp to deal with glUnmapBuffer(GL_ARRAY_BUFFER) == GL_FALSE.
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2016-03-18 21:35:52 -04:00 |
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Thomas Harte
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0b1c9fb291
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Ensured I don't interrupt triangle strips for the purpose of glDrawArrays.
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2016-03-18 21:28:53 -04:00 |
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Thomas Harte
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620257e29e
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Switched to a client wait, as I try to figure out what's going on.
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2016-03-18 21:21:35 -04:00 |
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Thomas Harte
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2e4af90e2d
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Resolved output errors.
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2016-03-18 21:19:11 -04:00 |
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Thomas Harte
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10bc33464d
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I don't think this is quite correct, but it's better.
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2016-03-18 21:14:06 -04:00 |
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Thomas Harte
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61e880de03
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Keeping a buffer permanently bound is apparently illegal. So back to copying in on demand. Which I think still improves on synchronisation, but not much.
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2016-03-18 21:11:09 -04:00 |
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Thomas Harte
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c8ecfb89d8
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Some cleaning.
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2016-03-16 22:52:33 -04:00 |
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Thomas Harte
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0d27d3bb7f
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As messy as it is, this use glMapBufferRange to avoid explicit buffer submits.
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2016-03-16 22:29:22 -04:00 |
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Thomas Harte
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ca35a7e222
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Ensured that a much greater input rate than output is handled correctly.
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2016-03-16 20:38:17 -04:00 |
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Thomas Harte
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4cd0aa3416
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Completed FIR filter based audio output.
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2016-03-15 23:37:35 -04:00 |
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Thomas Harte
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726c98446a
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Fixed a couple of memory leaks, at least got as far as instantiating a filter.
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2016-03-15 21:34:00 -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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68da673a95
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Wrapped this up as explicitly only the Mac thing to do.
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2016-03-08 22:53:29 -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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