325 Commits

Author	SHA1	Message	Date
Thomas Harte	069ec2e889	In search of the cause of performance issues again, excised the per-pixel sin until it can be further evaluated.	2016-04-11 23:13:54 -04:00
Thomas Harte	bdb99ba92f	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.	2016-04-10 22:56:52 -04:00
Thomas Harte	8701366277	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.	2016-04-10 21:34:40 -04:00
Thomas Harte	fc5530b513	Realising I've managed to confuse input and output, started shift to 'source' for what 'input' was.	2016-04-10 15:58:43 -04:00
Thomas Harte	6dbd20ffde	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.	2016-04-05 20:32:55 -04:00
Thomas Harte	c0cd1ed89e	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.	2016-04-04 21:57:27 -04:00
Thomas Harte	729fddea1c	Switched to integer textures, likely to simplify for most use cases.	2016-04-04 19:39:01 -04:00
Thomas Harte	3ca58b2a57	Attemted further to diminish jumpiness.	2016-03-22 22:07:30 -04:00
Thomas Harte	8cd5d40e00	Made an attempt to reduce the amount of data heading to the GPU.	2016-03-22 21:16:32 -04:00
Thomas Harte	3038704977	Attempted to introduce a lowpass filter to the graphics output, reverted 6502 optimisations as seemingly not working.	2016-03-21 22:01:25 -04:00
Thomas Harte	197cf2a834	Commented out sync; it can probably be implicit.	2016-03-20 21:42:05 -04:00
Thomas Harte	9da7716c72	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.	2016-03-19 22:46:17 -04:00
Thomas Harte	aa8a192c7e	Simplified API down to their being a single texture with a specified depth.	2016-03-19 17:37:55 -04:00
Thomas Harte	4ac1f959e9	A shortcut here and a shortcut there; this allows me at least to determine whether use of a PBO gains anything.	2016-03-19 17:07:05 -04:00
Thomas Harte	5b37a651ac	Made an attemp to deal with glUnmapBuffer(GL_ARRAY_BUFFER) == GL_FALSE.	2016-03-18 21:35:52 -04:00
Thomas Harte	0b1c9fb291	Ensured I don't interrupt triangle strips for the purpose of glDrawArrays.	2016-03-18 21:28:53 -04:00
Thomas Harte	620257e29e	Switched to a client wait, as I try to figure out what's going on.	2016-03-18 21:21:35 -04:00
Thomas Harte	2e4af90e2d	Resolved output errors.	2016-03-18 21:19:11 -04:00
Thomas Harte	10bc33464d	I don't think this is quite correct, but it's better.	2016-03-18 21:14:06 -04:00
Thomas Harte	61e880de03	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.	2016-03-18 21:11:09 -04:00
Thomas Harte	c8ecfb89d8	Some cleaning.	2016-03-16 22:52:33 -04:00
Thomas Harte	0d27d3bb7f	As messy as it is, this use glMapBufferRange to avoid explicit buffer submits.	2016-03-16 22:29:22 -04:00
Thomas Harte	68da673a95	Wrapped this up as explicitly only the Mac thing to do.	2016-03-08 22:53:29 -05:00
Thomas Harte	bf5747f83e	Made an attempt to chop out all the stuff of building up the OpenGL data from the stuff of parsing input.	2016-03-08 22:40:23 -05:00
Thomas Harte	14b2927275	Made further attempts to tidy up; trying to demarcate between public interface and private.	2016-03-08 20:59:16 -05:00