390 Commits

Author	SHA1	Message	Date
Thomas Harte	7ad64ff16b	Made further efforts to support throughput via memory barrier.	2017-01-08 14:47:16 -05:00
Thomas Harte	be48c950b4	Started taking steps towards using a texture barrier where possible to reduce all of my framebuffer binds. Some output appears, but it's not correct.	2017-01-08 11:13:20 -05:00
Thomas Harte	0487b8c178	Definitively eliminated the additional y filtering step; if I'm going to work to ensure always four samples per colour cycle, I can put the channel separation coefficients directly into their shaders, cutting down on samples.	2017-01-07 16:02:33 -05:00
Thomas Harte	5740015f56	Temporarily disabled composite processing to show the pure stream. Fixed both automatic calculations of phase — per line and, at input, per pixel.	2017-01-07 12:38:00 -05:00
Thomas Harte	c84004bfa3	Fixed: colour_cycle_numerator_ doesn't need to be multiplied by the time multiplier because it'll get that for free from the calculation of next_run_length.	2017-01-06 21:36:19 -05:00
Thomas Harte	c746a3711f	Temporarily disabled my attempt to be clever with bilinear filtering when applying a lowpass filter. Will need to investigate.	2017-01-04 08:06:18 -05:00
Thomas Harte	aa7774a9a6	Experimental: up the chroma accuracy, just let the luma go straight through. Subject to figuring out how I'm still losing so much precision.	2017-01-03 22:41:34 -05:00
Thomas Harte	a836120945	Restored proper colour separation, but somewhere a massive hit in horizontal resolution is happening — much greater than one would expect from the sample size picked. So investigation to come.	2017-01-03 22:32:07 -05:00
Thomas Harte	7d60df9075	Added the option for both intermediate and output shaders to use only a portion of the input/output texture; made an attempt to pick an appropriate proportion in order to align signal sampling with the colour subcarrier.	2017-01-03 22:16:52 -05:00
Thomas Harte	f2b8b26bc4	Started throwing some comments into my shaders.	2017-01-03 21:16:38 -05:00
Thomas Harte	34d213dec4	Decreased Y resolution, again also hopefully temporarily.	2016-12-10 15:35:38 -05:00
Thomas Harte	81a102d951	Upped intermediate buffer size, at least temporarily, while I look for the source of the interference patterns I'm seeing.	2016-12-10 15:20:10 -05:00
Thomas Harte	0e71802b92	Reduced Oric video to single nibble constants. Removed attempt at asynchronous flush as no longer required.	2016-12-10 14:17:46 -05:00
Thomas Harte	a549fd1ecc	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.	2016-12-10 13:42:34 -05:00
Thomas Harte	5216dda675	Added some brief extra exposition to the texture builder, cut all internal tex_x/y and source_divider stuff from the CRT.	2016-12-06 19:08:55 -05:00
Thomas Harte	33d52bb573	Ensured no over-moving.	2016-12-06 19:02:18 -05:00
Thomas Harte	4ff33254e1	Sought to shift locking back up to the CRT. And to be a bit more RAII-ish.	2016-12-06 18:48:30 -05:00
Thomas Harte	60f9ddfde8	Fixed start test and added incrementation of start locations.	2016-12-06 08:08:57 -05:00
Thomas Harte	f388ba11cc	Missed an initialisation. Fixed!	2016-12-06 07:26:23 -05:00
Thomas Harte	0fee8096c1	Made an attempt to shuffle the texture builder to a similar flush/submit pattern as the input builder. Don't care about thread safety yet, as it's obvious I'm going to need to move that back up to the CRT.	2016-12-06 07:24:07 -05:00
Thomas Harte	0edc043378	Started introducing an extra layer of indirection so as to be able to bind the texture builder to the same flush and submit patern as the array builder.	2016-12-03 20:47:19 -05:00
Thomas Harte	cb3c837e30	Simplified interface by baking in last-minute-only updates.	2016-12-03 18:19:12 -05:00
Thomas Harte	0220d33562	Resolved failure of initial state setting, which was causing tests sometimes to fail.	2016-12-03 16:42:10 -05:00
Thomas Harte	c5016a3eaa	Completed flight of 'Outputs' to postfix underscores.	2016-12-03 11:02:34 -05:00
Thomas Harte	7c85cb62e4	Moved underscores, removed indirections where they're not necessary, converted those names that were still looking very Objective-C and moved the GL fence variable into the private area, where it should always have been.	2016-11-21 12:14:52 +08:00
Thomas Harte	bc03e12dc5	Switched to suffix underscores.	2016-11-21 11:57:45 +08:00
Thomas Harte	340607e13e	Switched the flywheel to suffix underscores.	2016-11-21 11:48:31 +08:00
Thomas Harte	e1285028aa	Removed a redundant clear and some dead code.	2016-11-21 11:42:45 +08:00
Thomas Harte	7b38247ab3	Updated outdated comments.	2016-11-21 11:40:13 +08:00
Thomas Harte	d7d0ed378a	Only the final intermediate buffer needs clearing, on reflection.	2016-11-21 11:26:07 +08:00
Thomas Harte	c89345c639	Reduced buffer size.	2016-11-21 11:21:14 +08:00
Thomas Harte	32dbfe947d	With hindsight, the elimination of this might have been overzealous.	2016-11-20 10:53:35 +08:00
Thomas Harte	ef0367d4a4	Corrected typo.	2016-11-20 09:12:43 +08:00
Thomas Harte	5bc165960a	Completed refactoring.	2016-11-20 09:12:06 +08:00
Thomas Harte	fda90c5aef	Documented.	2016-11-20 09:11:24 +08:00
Thomas Harte	c2349ee3f4	This thing has clearly becoma a real class.	2016-11-19 20:12:40 +08:00
Thomas Harte	7857ef774f	Ensured resets genuinely kill outstanding data.	2016-11-19 20:09:38 +08:00
Thomas Harte	a4c7b00ecd	Fixed code that was causing the failing test.	2016-11-19 19:55:30 +08:00
Thomas Harte	f59537bce9	Added a testing hook, but as of yet no tests.	2016-11-17 14:06:16 +08:00
Thomas Harte	aca1fa0577	Returned some video output. Enough significantly to reduce my paranoia.	2016-11-17 13:37:53 +08:00
Thomas Harte	1f91d29434	Progressed to usage of an array builder and a texture builder up to the point of a successful build.	2016-11-17 12:26:04 +08:00
Thomas Harte	0f3b02edb7	Switched to postfix underscores and gave this class ownership of a texture builder and an array builder, though it presently uses neither.	2016-11-17 11:00:11 +08:00
Thomas Harte	57f0648742	Fleshed out first implementation of ArrayBuilder, albeit that I need to implement exhaustion properly, as soon as I think of a sensible way to handle synchronisation.	2016-11-17 10:39:30 +08:00
Thomas Harte	324a1de43d	Started pulling out array construction as a separate task.	2016-11-17 09:20:49 +08:00
Thomas Harte	c04a116a05	Fixed comment.	2016-11-16 23:14:56 +08:00
Thomas Harte	edeafd4d94	Wait, OpenGL textures go the other way.	2016-11-16 23:14:15 +08:00
Thomas Harte	6ac20e0066	Pushed responsibility for submitting texture contents up to the texture builder, simplifying the interface.	2016-11-16 23:13:06 +08:00
Thomas Harte	5c5e44874f	Even better: why include the 'Input' prefix when there's only one?	2016-11-16 22:57:17 +08:00
Thomas Harte	04b2688683	Attempted to reduce allocations.	2016-11-16 13:25:50 +08:00
Thomas Harte	c1a509910d	Documented this interface, albeit that the English could do with a second pass, and very sightly simplified inline with current usage.	2016-11-16 13:15:50 +08:00