267 Commits

Author	SHA1	Message	Date
Thomas Harte	5aef81cf24	Commutes cross-platform #pragma marks to //MARK:s.	2017-11-12 15:59:11 -05:00
Thomas Harte	2e15fab651	Doubles down on <cX> over <X.h> for C includes, and usage of the namespace for those types and functions.	2017-11-11 15:28:40 -05:00
Thomas Harte	2e12370251	Resolves some of the dangling C-isms remaining in my FIR filter, and introduces filter composition.	2017-11-11 12:30:45 -05:00
Thomas Harte	cb0f58ab7a	Corrects order-of-initialisation errors in the CPC (again), TextureBuilder, TextureTarget, Z80, MFM parser and binary tape player.	2017-11-10 22:57:03 -05:00
Thomas Harte	fabaf4e607	Adds missing include files, corrects bad include paths and eliminates the Clang-specific __undefined.	2017-11-10 21:56:53 -05:00
Thomas Harte	c0055a5a5f	Further builds up SConstruct, correcting many missed imports and a couple of improper uses of C99 in C++ code.	2017-11-09 22:04:49 -05:00
Thomas Harte	c45d4831ec	Introduces an SConstruct file and corrects those errors and warnings that arise in Ubuntu.	2017-11-08 22:36:41 -05:00
Thomas Harte	6e1d69581c	Eliminates a variety of end-of-line spaces.	2017-11-07 22:54:22 -05:00
Thomas Harte	513903890e	Corrects definition of Bookender and provides the default implementation.	2017-10-22 17:24:41 -04:00
Thomas Harte	1157bde453	Sketches interface for a GPU data bookender, to avoid stray errors with packed pixel formats.	2017-10-22 10:48:10 -04:00
Thomas Harte	ad9df4bb90	Commutes uint8_t *, uint16_t *, uint32_t *, size_t, off_t and long to functional-style casts.	2017-10-21 22:30:15 -04:00
Thomas Harte	e983854e71	Converts all uint8_t and uint16_t casts to the functional style.	2017-10-21 21:50:53 -04:00
Thomas Harte	ec999446e8	Commutes int and unsigned casts to the functional style.	2017-10-21 21:00:40 -04:00
Thomas Harte	5e3e91373a	Switches all unsigned int and double casts to functional style.	2017-10-21 19:49:04 -04:00
Thomas Harte	b5b6219cb7	Slightly simplifies TextureBuilder arithmetic.	2017-10-19 22:02:00 -04:00
Thomas Harte	ce78d9d12c	Introduces buffer alignment when writing to textures. ... To avoid cross-boundary writes and hopefully to eke out a little better performance.	2017-10-17 22:09:48 -04:00
Thomas Harte	edbc60a3fb	Various undefined behaviour fixes. ... Primarily around uninitialised variables, but also with an attempted use of a negative pointer.	2017-10-17 21:29:19 -04:00
Thomas Harte	c6e6c3fcfb	Resolves all current analyser warnings.	2017-08-24 22:18:44 -04:00
Thomas Harte	2d81acb82e	Upped C++ standard to C++14 and added an #if that's intended to use the built-in std::gcd when compiled on C++17 or better. Fixed for new signedness warnings resulting for taking the step to C++14.	2017-08-11 19:18:45 -04:00
Thomas Harte	ad8c8166bc	Built in gamma conversion for all machines, assuming an output of 2.8 for PAL, 2.2 for NTSC.	2017-08-10 15:17:08 -04:00
Thomas Harte	449c33ee8b	Signedness fixes.	2017-07-21 21:28:04 -04:00
Thomas Harte	ef03c84b21	More definitively removed the old sample-offset blending approach to filtering.	2017-07-21 20:58:55 -04:00
Thomas Harte	8ccec37a4b	Eliminated a further potential cause of texture/geometry mismatch: the texture retain succeeded but then there wasn't room for geometry.	2017-07-09 19:11:38 -04:00
Thomas Harte	a25c2fd6b5	Got more explicit about what the thinking is here re: multiple sources of action.	2017-07-09 17:54:26 -04:00
Thomas Harte	ee1a9a4781	Eliminates attempts cleverly to shuffle unsubmitted runs, because no mechanism exists to stop them overwriting previously-submitted-but-not-yet-flushed runs. Which implies that the buffer must be fully circular. The cost of which is sometimes having to make two calls to glTexSubImage2D. Also added some TODOs, and a means for reporting when a retain_latest is ineffective, in which situation it would be inappropriate to attempt to generate correlated geometry	2017-07-09 17:50:22 -04:00
Thomas Harte	2f90f35478	Ensured the same write area can be submitted multiple times — this is actively used if a run of data overlaps a flywheel-suggested sync. Which nullifies the idea of not having a write area in the barrel, at least as soon as any one has been allocated.	2017-07-07 23:37:44 -04:00
Thomas Harte	bfbe12b94b	Made an attempt further to tie geometry and texture generation fully together, removing the assumption that the caller will achieve one-to-one calling.	2017-07-07 22:25:05 -04:00
Thomas Harte	344d267fd2	Introduced sharper chrominance for genuinely black-and-white signals.	2017-07-06 21:38:33 -04:00
Thomas Harte	4211389ac7	Connected machine-supplied colour burst amplitude to shader, discarding hard-coded value. Net effect: the colour component is now discarded for the ZX80 and 81.	2017-07-06 21:29:08 -04:00
Thomas Harte	c6d00ec7d1	Switched phase and amplitude varying to a 3d vector; the third component is 1/amplitude if amplitude is non-zero, and zero otherwise. So you can multiply by that to get chrominance, rather than dividing by amplitude. With the direct effect that detected chrominance should automatically be zero if the colour burst didn't exist (i.e. had zero amplitude).	2017-07-06 21:25:38 -04:00
Thomas Harte	c2b5a9bb1f	Minor fix: given that phase is now a function of position, stop nudging position.	2017-05-13 21:50:48 -04:00
Thomas Harte	b14c892740	Switched to a safer RAII approach to this lock.	2017-05-10 21:29:39 -04:00
Thomas Harte	e01f3f06c8	Completed curly bracket movement.	2017-03-26 14:34:47 -04:00
Thomas Harte	6cb95b4fc5	Switched to passing around std::strings rather than char *s, because they should be easier to capture.	2017-02-20 10:35:33 -05:00
Thomas Harte	fccdce65b9	Switched to lock guards.	2017-02-19 21:45:28 -05:00
Thomas Harte	97cdfea9e9	Resolved spurious static analyser complaint: input_size and output_size aren't supposed to have defined values if input or output is null. But whatever.	2017-02-11 13:36:09 -05:00
Thomas Harte	23f3ccd77a	Made a further attempt to prevent overwrites.	2017-02-05 17:47:34 -05:00
Thomas Harte	ebde955356	This needs to be a memmove as the areas may overlap.	2017-01-29 16:12:48 -05:00
Thomas Harte	7fd02e7f4c	Added an extra flag to avoid potential race condition on is_full_, being reset from the background despite a write area not having been allocated.	2017-01-29 16:11:29 -05:00
Thomas Harte	c2d7e36c8f	Ensured logic for whether composite output is in use is consistent.	2017-01-25 21:25:03 -05:00
Thomas Harte	5761c8267b	[Re-]Eliminated connection between colour subcarrier frequency and monitor output mode.	2017-01-24 20:48:54 -05:00
Thomas Harte	b4159295f6	Switched to using quads for intermediate draws. The specific concern is the flexibility offered in the GL spec as to line drawing algorithms. And even if a driver implements exactly to spec then it should omit the final pixel.	2017-01-11 21:18:41 -05:00
Thomas Harte	d0a93409e6	Made an attempt to simplify in-shader phase calculation, now that output position is a direct multiple of phase.	2017-01-11 08:18:00 -05:00
Thomas Harte	4c3669f210	Reduced precision of input phase, but I'm not necessarily persuaded by it as a move. However it's clear that something is off in that whole area. But if phase is locked by output position, do I need to retain this level of complexity? Also ensured that intermediate buffers prior to the final are sampled using the nearest sampling mode, also to reduce precision errors.	2017-01-10 22:08:07 -05:00
Thomas Harte	eeb646868b	Switched off filtering, at least temporarily, to try to ensure that sampling is all where it should be.	2017-01-08 19:53:08 -05:00
Thomas Harte	3d789732a2	Switched back to full buffer clearing. Until I can figure out the source of noise.	2017-01-08 19:50:31 -05:00
Thomas Harte	9521718120	Colour phase is multiplied by 255, not 256.	2017-01-08 17:21:26 -05:00
Thomas Harte	28909e33ca	Eliminated phaseCyclesPerTick as implied.	2017-01-08 16:48:02 -05:00
Thomas Harte	79632b1d34	Instituted de-escalating phase-related extensions, definitively to kill rounding error edges.	2017-01-08 16:24:22 -05:00
Thomas Harte	7ad64ff16b	Made further efforts to support throughput via memory barrier.	2017-01-08 14:47:16 -05:00