Thomas Harte
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218b976dbc
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Adds through route for setting a texture bookender, and exploits it from the Electron.
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2017-10-23 18:35:37 -04:00 |
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Thomas Harte
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513903890e
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Corrects definition of Bookender and provides the default implementation.
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2017-10-22 17:24:41 -04:00 |
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Thomas Harte
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1157bde453
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Sketches interface for a GPU data bookender, to avoid stray errors with packed pixel formats.
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2017-10-22 10:48:10 -04:00 |
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Thomas Harte
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ad9df4bb90
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Commutes uint8_t *, uint16_t *, uint32_t *, size_t, off_t and long to functional-style casts.
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2017-10-21 22:30:15 -04:00 |
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Thomas Harte
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e983854e71
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Converts all uint8_t and uint16_t casts to the functional style.
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2017-10-21 21:50:53 -04:00 |
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Thomas Harte
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ec999446e8
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Commutes int and unsigned casts to the functional style.
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2017-10-21 21:00:40 -04:00 |
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Thomas Harte
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5e3e91373a
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Switches all unsigned int and double casts to functional style.
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2017-10-21 19:49:04 -04:00 |
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Thomas Harte
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b5b6219cb7
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Slightly simplifies TextureBuilder arithmetic.
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2017-10-19 22:02:00 -04:00 |
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Thomas Harte
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ba5f668338
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Ensured full CRT instance initialisation.
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2017-10-17 22:34:10 -04:00 |
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Thomas Harte
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ce78d9d12c
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Introduces buffer alignment when writing to textures.
To avoid cross-boundary writes and hopefully to eke out a little better performance.
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2017-10-17 22:09:48 -04:00 |
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Thomas Harte
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edbc60a3fb
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Various undefined behaviour fixes.
Primarily around uninitialised variables, but also with an attempted use of a negative pointer.
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2017-10-17 21:29:19 -04:00 |
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Thomas Harte
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c6e6c3fcfb
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Resolves all current analyser warnings.
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2017-08-24 22:18:44 -04:00 |
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Thomas Harte
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2d81acb82e
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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.
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2017-08-11 19:18:45 -04:00 |
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Thomas Harte
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62eadbb51a
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Adjusted gamma ratio to be the correct way around. The PAL midrange should be slightly darker now.
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2017-08-10 15:36:27 -04:00 |
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Thomas Harte
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ad8c8166bc
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Built in gamma conversion for all machines, assuming an output of 2.8 for PAL, 2.2 for NTSC.
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2017-08-10 15:17:08 -04:00 |
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Thomas Harte
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55fd9122d0
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Slightly relaxed vertical sync testing.
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2017-07-30 21:19:42 -04:00 |
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Thomas Harte
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0bf4fdc9af
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Simplified slightly.
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2017-07-29 21:37:59 -04:00 |
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Thomas Harte
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ed8c73eb14
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Ensured lengthy constant sync can't appear to be two sync pulses, regardless of other interruption.
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2017-07-29 18:25:04 -04:00 |
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Thomas Harte
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3528a7f78b
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Made an attempt at triggering vertical sync the expected number of time after it begins, regardless of total length.
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2017-07-29 17:33:52 -04:00 |
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Thomas Harte
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54bcc40192
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With an eye towards being more accurate as to vertical sync recognition: acknowledged that the detection period varies between PAL and NTSC.
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2017-07-29 14:53:53 -04:00 |
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Thomas Harte
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be750ee427
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Eliminated all dangling implicit signedness conversions.
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2017-07-21 21:52:37 -04:00 |
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Thomas Harte
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449c33ee8b
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Signedness fixes.
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2017-07-21 21:28:04 -04:00 |
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Thomas Harte
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ef03c84b21
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More definitively removed the old sample-offset blending approach to filtering.
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2017-07-21 20:58:55 -04:00 |
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Thomas Harte
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5b4c5b0cbf
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Avoided having two different variables named next_output_run.
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2017-07-21 20:46:08 -04:00 |
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Thomas Harte
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8ccec37a4b
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Eliminated a further potential cause of texture/geometry mismatch: the texture retain succeeded but then there wasn't room for geometry.
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2017-07-09 19:11:38 -04:00 |
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Thomas Harte
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a25c2fd6b5
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Got more explicit about what the thinking is here re: multiple sources of action.
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2017-07-09 17:54:26 -04:00 |
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Thomas Harte
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ee1a9a4781
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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
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2017-07-09 17:50:22 -04:00 |
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Thomas Harte
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2f90f35478
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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.
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2017-07-07 23:37:44 -04:00 |
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Thomas Harte
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12f7e1b804
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Enshrined a default colour burst amplitude. Which now everybody relies on. The 102 figure is derived from the burst apparently being 40 IRE.
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2017-07-07 23:35:14 -04:00 |
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Thomas Harte
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c7fa2ed11a
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It makes more sense not to retain the previous texture builder run until vertex storage is confirmed.
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2017-07-07 23:21:25 -04:00 |
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Thomas Harte
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bfbe12b94b
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Made an attempt further to tie geometry and texture generation fully together, removing the assumption that the caller will achieve one-to-one calling.
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2017-07-07 22:25:05 -04:00 |
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Thomas Harte
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ab1374f801
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Added an assert on an assumed buffer size alignment.
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2017-07-06 21:46:24 -04:00 |
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Thomas Harte
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344d267fd2
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Introduced sharper chrominance for genuinely black-and-white signals.
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2017-07-06 21:38:33 -04:00 |
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Thomas Harte
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4211389ac7
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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.
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2017-07-06 21:29:08 -04:00 |
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Thomas Harte
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c6d00ec7d1
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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).
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2017-07-06 21:25:38 -04:00 |
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Thomas Harte
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a5075d9eb5
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Formalised the reasoning behind the colour phase fix-up and made it an opt-in per-caller value. Only the Oric currently needs to opt in.
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2017-05-16 20:31:39 -04:00 |
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Thomas Harte
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c2b5a9bb1f
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Minor fix: given that phase is now a function of position, stop nudging position.
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2017-05-13 21:50:48 -04:00 |
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Thomas Harte
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b14c892740
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Switched to a safer RAII approach to this lock.
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2017-05-10 21:29:39 -04:00 |
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Thomas Harte
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e01f3f06c8
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Completed curly bracket movement.
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2017-03-26 14:34:47 -04:00 |
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Thomas Harte
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e63229a5e5
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Pulled vertical sync detection entirely outside the loop, and gave it greater perspective.
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2017-03-06 19:15:33 -05:00 |
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Thomas Harte
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ad73379d1c
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Took vertical sync detection logic entirely out of the loop.
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2017-03-05 20:17:55 -05:00 |
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Thomas Harte
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4751615623
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Fixed NTSC colour cycle count, and hence the 2600's reported line lengths and phase offset.
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2017-03-04 17:31:39 -05:00 |
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Thomas Harte
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a3fcd15980
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Loosened sync charge level requirement.
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2017-03-01 22:16:56 -05:00 |
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Thomas Harte
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d19f26887d
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Performed a very naive shuffling of output builder sets onto the OpenGL queue. Which makes the frequency switcher work properly from it's possibly-contextless thread.
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2017-02-20 10:39:31 -05:00 |
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Thomas Harte
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6cb95b4fc5
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Switched to passing around std::strings rather than char *s, because they should be easier to capture.
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2017-02-20 10:35:33 -05:00 |
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Thomas Harte
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d979a822ac
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Introduced a deferred task list for the OpenGL thread.
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2017-02-19 21:46:07 -05:00 |
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Thomas Harte
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fccdce65b9
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Switched to lock guards.
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2017-02-19 21:45:28 -05:00 |
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Thomas Harte
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97cdfea9e9
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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.
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2017-02-11 13:36:09 -05:00 |
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Thomas Harte
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fcf8cafb5d
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Sought to ensure that communicating a colour burst in multiple parts doesn't ruin the phase.
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2017-02-06 18:27:44 -05:00 |
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Thomas Harte
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23f3ccd77a
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Made a further attempt to prevent overwrites.
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2017-02-05 17:47:34 -05:00 |
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