58 Commits

Author	SHA1	Message	Date
Thomas Harte	86dab3a5d6	Quickest first attempt to switch to instancing for the output array. Texture coordinates seem to be off.	2016-05-10 07:23:47 -04:00
Thomas Harte	7e2bd78891	With an eye towards instancing, moved away from circular buffers.	2016-05-09 19:14:30 -04:00
Thomas Harte	45af963b9a	Moved more of the circular logic inside getCircularRanges in order to eliminate one more potential source of error.	2016-05-09 07:34:37 -04:00
Thomas Harte	cec9ad0dc6	Switched to a more rational interface, ensured output_level will work when eventually needed, and that neither it nor output_data attempts a recursive lock.	2016-05-09 07:02:12 -04:00
Thomas Harte	a82fa31370	Switched back to broad locking for CRT updates. To eliminate one more thing.	2016-05-09 06:58:26 -04:00
Thomas Harte	47302de23a	Switched to simpler storage for _image.	2016-05-08 21:11:56 -04:00
Thomas Harte	986019f9f9	Fixed error that could lead to split output run vertex writes.	2016-05-08 20:30:59 -04:00
Thomas Harte	ef3b91d3aa	Made an attempt to get formal on synchronisation.	2016-05-08 19:42:33 -04:00
Thomas Harte	a75259ce9f	Removed some dead caveman debugging statements.	2016-05-08 16:18:42 -04:00
Thomas Harte	9485ef2c8c	At last a genuine bug fixed: was nudging the wrong amount in intermediate shaders.	2016-05-08 16:07:36 -04:00
Thomas Harte	8e4ab37719	Things are back pretty much to where they were, but offset is eliminated as an input.	2016-05-07 18:37:18 -04:00
Thomas Harte	a74f081aa9	Put lateral lookup table directly into the shader.	2016-05-05 21:21:27 -04:00
Thomas Harte	284b310074	Attempted to implement end-of-buffer tests for all stages.	2016-05-05 19:52:05 -04:00
Thomas Harte	f621cc8523	Withdrew the pixel unpack buffer in order to avoid the potential for a paused machine to be undrawable. The cost is at least an extra memcpy per frame; I'm letting the driver worry about the whole process for now.	2016-05-04 21:27:10 -04:00
Thomas Harte	87df57195d	Started on an attempt not to treat the various buffers as free to loop within, starting with the input texture.	2016-05-04 07:39:45 -04:00
Thomas Harte	2541711061	Made attempts (i) to flush buffers before unmapping them; and (ii) to bring texture uploads within the new orthodoxy.	2016-05-03 20:56:47 -04:00
Thomas Harte	fc1a67c157	Lateral is no longer written per vertex. It's a fixed list.	2016-05-03 18:45:55 -04:00
Thomas Harte	31f1e6d5c0	Introduced a separate stage for luminance filtering.	2016-05-03 07:46:40 -04:00
Thomas Harte	29e7c96e4c	Brought monitor mode inside the pipeline and added an intermediate filter.	2016-05-02 21:05:58 -04:00
Thomas Harte	6982e945fb	Fixed those issues breaking GL state, I hope.	2016-05-01 16:17:52 -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	e6c3b148ac	Switched wholeheartedly to the new shader.	2016-04-28 21:45:44 -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	416c944f02	Experimental: let's try accumulating history directly in the framebuffer.	2016-04-26 21:41:39 -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	95639f1189	Made attempt to introduce final filtering stage and output.	2016-04-22 19:15:59 -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	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	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	b90a487a16	Attempted to enable both monitor and television output paths in the same codebase. The television route seems to be broken. Investigation required.	2016-04-19 19:30:50 -04:00
Thomas Harte	6c9bcfa637	Got rigorous on exceptions, started working towards having a working 'composite' shader at the same time as having a working RGB shader.	2016-04-19 08:05:43 -04:00
Thomas Harte	43cae267f9	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.	2016-04-17 18:08:05 -04:00
Thomas Harte	ece51917fa	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.	2016-04-17 17:17:59 -04:00
Thomas Harte	abce0ed3c4	Added setup of the source vertex array.	2016-04-17 16:17:23 -04:00
Thomas Harte	6ff9ffba6c	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.	2016-04-17 15:51:28 -04:00
Thomas Harte	026ce0255f	Source runs are now captured, and that buffer appropriately reset.	2016-04-13 22:20:13 -04:00
Thomas Harte	2ea02ed127	A source array buffer is also now created, mapped, unmapped, etc.	2016-04-13 22:14:18 -04:00
Thomas Harte	fe8b0ebc7e	Tidied up a little, mostly bumping things out of just-in-time creation that I can just do well in advance.	2016-04-12 22:31:13 -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	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	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	8cd5d40e00	Made an attempt to reduce the amount of data heading to the GPU.	2016-03-22 21:16:32 -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