Thomas Harte
|
35e84ff1a8
|
Corrects NTSC quadrature phase.
|
2018-05-31 21:40:46 -04:00 |
|
Thomas Harte
|
7226d8d4f7
|
Eliminates all instances of µ.
|
2018-05-13 15:46:14 -04:00 |
|
Thomas Harte
|
0b771ce61a
|
Removes all instances of the copyright symbol.
|
2018-05-13 15:19:52 -04:00 |
|
Thomas Harte
|
1c605d58e3
|
Removes the CRT requirement for an integral relationship between cycles and samples.
|
2018-04-16 20:00:56 -04:00 |
|
Thomas Harte
|
705d53cc21
|
Picks a phase for the TMS empirically.
|
2018-03-03 13:53:00 -05:00 |
|
Thomas Harte
|
9cbd61e709
|
Replaces CRT quantity assert with test.
Primarily to handle television/composite target switches that can unsync the buffers.
|
2018-01-15 18:37:09 -05:00 |
|
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
|
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
|
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
|
ba5f668338
|
Ensured full CRT instance initialisation.
|
2017-10-17 22:34:10 -04:00 |
|
Thomas Harte
|
62eadbb51a
|
Adjusted gamma ratio to be the correct way around. The PAL midrange should be slightly darker now.
|
2017-08-10 15:36:27 -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
|
55fd9122d0
|
Slightly relaxed vertical sync testing.
|
2017-07-30 21:19:42 -04:00 |
|
Thomas Harte
|
0bf4fdc9af
|
Simplified slightly.
|
2017-07-29 21:37:59 -04:00 |
|
Thomas Harte
|
ed8c73eb14
|
Ensured lengthy constant sync can't appear to be two sync pulses, regardless of other interruption.
|
2017-07-29 18:25:04 -04:00 |
|
Thomas Harte
|
3528a7f78b
|
Made an attempt at triggering vertical sync the expected number of time after it begins, regardless of total length.
|
2017-07-29 17:33:52 -04:00 |
|
Thomas Harte
|
54bcc40192
|
With an eye towards being more accurate as to vertical sync recognition: acknowledged that the detection period varies between PAL and NTSC.
|
2017-07-29 14:53:53 -04:00 |
|
Thomas Harte
|
be750ee427
|
Eliminated all dangling implicit signedness conversions.
|
2017-07-21 21:52:37 -04:00 |
|
Thomas Harte
|
5b4c5b0cbf
|
Avoided having two different variables named next_output_run.
|
2017-07-21 20:46:08 -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
|
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
|
12f7e1b804
|
Enshrined a default colour burst amplitude. Which now everybody relies on. The 102 figure is derived from the burst apparently being 40 IRE.
|
2017-07-07 23:35:14 -04:00 |
|
Thomas Harte
|
c7fa2ed11a
|
It makes more sense not to retain the previous texture builder run until vertex storage is confirmed.
|
2017-07-07 23:21:25 -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
|
ab1374f801
|
Added an assert on an assumed buffer size alignment.
|
2017-07-06 21:46:24 -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
|
a5075d9eb5
|
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.
|
2017-05-16 20:31:39 -04:00 |
|
Thomas Harte
|
e01f3f06c8
|
Completed curly bracket movement.
|
2017-03-26 14:34:47 -04:00 |
|
Thomas Harte
|
e63229a5e5
|
Pulled vertical sync detection entirely outside the loop, and gave it greater perspective.
|
2017-03-06 19:15:33 -05:00 |
|
Thomas Harte
|
ad73379d1c
|
Took vertical sync detection logic entirely out of the loop.
|
2017-03-05 20:17:55 -05:00 |
|
Thomas Harte
|
4751615623
|
Fixed NTSC colour cycle count, and hence the 2600's reported line lengths and phase offset.
|
2017-03-04 17:31:39 -05:00 |
|
Thomas Harte
|
a3fcd15980
|
Loosened sync charge level requirement.
|
2017-03-01 22:16:56 -05:00 |
|
Thomas Harte
|
fcf8cafb5d
|
Sought to ensure that communicating a colour burst in multiple parts doesn't ruin the phase.
|
2017-02-06 18:27:44 -05:00 |
|
Thomas Harte
|
4d6e78e641
|
Reinstated temporary Oric-related fix.
|
2017-01-24 22:16:15 -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
|
d2a7d39749
|
Ensured the output lock isn't held while talking to the delegate.
|
2017-01-08 19:49:21 -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
|
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
|
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
|
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
|
5bc165960a
|
Completed refactoring.
|
2016-11-20 09:12:06 +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
|
6cb4950db4
|
Improved run-off area.
|
2016-11-16 11:53:15 +08:00 |
|
Thomas Harte
|
9ee11d7765
|
At the expense of API simplicity, at least for now, resolved the most glaring cause of dirty lines.
|
2016-11-16 11:34:05 +08:00 |
|
Thomas Harte
|
294adde344
|
Eliminated zoned clearing, in favour of a complete buffer clear on each load and attempted to reduce locking. But imperfectly.
|
2016-11-16 10:59:12 +08:00 |
|
Thomas Harte
|
c628b7c5c5
|
This is the real PAL frequency, I think.
|
2016-10-17 08:05:02 -04:00 |
|
Thomas Harte
|
2bd71e7e9b
|
.reset is the more normal way to reassign a unique_ptr.
|
2016-06-23 20:52:44 -04:00 |
|
Thomas Harte
|
c18cc4c8f5
|
It appears the Vic's output is sine-ish, after all. Also adjusted centre of display, simultaneously adding some validation on that.
|
2016-06-14 07:29:35 -04:00 |
|
Thomas Harte
|
6d65bc9b3a
|
Permitted a wider error window on vertical sync, tidied things up a little and started trying to move towards full implementation of the OpenGL contract.
|
2016-05-11 22:11:01 -04:00 |
|
Thomas Harte
|
4b3c4082d2
|
These functions appear correctly to model the NTSC and PAL palettes; the CRT's attempt to switch function doesn't work properly yet though.
|
2016-05-11 21:07:18 -04:00 |
|
Thomas Harte
|
b6d2c8cb63
|
Switched to instaced drawing for source[/intermediate] runs too, reducing that data transfer footprint by 50%.
|
2016-05-10 19:50:12 -04:00 |
|
Thomas Harte
|
7369139f7e
|
Realised that phase time can fit inside a single byte, since it's always (well) within the first quarter of the line — and if it somehow weren't (?) then taking it modulo the frequency would do.
|
2016-05-10 19:14:57 -04:00 |
|
Thomas Harte
|
257420b0f7
|
Fixed potential output error if buffer top were hit; clarified buffer size constants.
|
2016-05-10 19:04:03 -04:00 |
|
Thomas Harte
|
1d0bcb416d
|
Dropped the size per output run back down to 8 bytes.
|
2016-05-10 07:47:47 -04:00 |
|
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
|
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
|
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
|
284b310074
|
Attempted to implement end-of-buffer tests for all stages.
|
2016-05-05 19:52:05 -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
|
29e7c96e4c
|
Brought monitor mode inside the pipeline and added an intermediate filter.
|
2016-05-02 21:05:58 -04:00 |
|
Thomas Harte
|
501ab74eaf
|
Fixed time multiplier calculation.
|
2016-04-28 22:12:59 -04:00 |
|
Thomas Harte
|
ef3647f6cf
|
Being bold: per-scan timing isn't coming back, I think, so started completely removing it.
|
2016-04-27 23:00:43 -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
|
6c567d166a
|
Fixed colour burst acceptance, switched to an integral single byte streaming of Atari colours.
|
2016-04-25 20:56:15 -04:00 |
|
Thomas Harte
|
9b64f64db7
|
Attempted to normalise some style decisions.`
|
2016-04-24 22:32:24 -04:00 |
|
Thomas Harte
|
082003ed0a
|
Reintroduced the CRT delegate and the 2600's automatic region switching. Albeit that the CRT itself doesn't adjust properly to new timings yet.
|
2016-04-24 18:36:22 -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
|
4b9985626d
|
Started commuting alpha to direction. The incoming amplitude is now honoured.
|
2016-04-21 19:53:41 -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
|
cf55a0c423
|
Fixed: composite output y is now incremented upon the start of retrace, that causing it to have different values at either edge of scans.
|
2016-04-18 21:49:45 -04:00 |
|
Thomas Harte
|
d5bac2f04f
|
Spotted error was in texture target all along. This now gets as far as showing something a lot like the correct display, but precision is way off. Way off.
|
2016-04-18 21:32:48 -04:00 |
|
Thomas Harte
|
9ede284eb6
|
Added blanking source runs, ensuring the rolling buffer is appropriately cleared.
|
2016-04-17 20:34:52 -04:00 |
|
Thomas Harte
|
323f1a24db
|
Introduced blackout period solution to vertical sync confusing horizontal sync. Need to find out whether it's accurate.
|
2016-04-14 20:30:45 -04:00 |
|
Thomas Harte
|
d100c755b7
|
The final line runs on a diagonal. Leave room for that.
|
2016-04-11 23:13:14 -04:00 |
|
Thomas Harte
|
7276a06cc0
|
Added a helper to calculate a visible rect based on output timings, used it to scale the Electron output up to the full window size.
|
2016-04-11 21:47:23 -04:00 |
|
Thomas Harte
|
e45fe43801
|
Removed some dead caveman debugging.
|
2016-04-10 23:02:34 -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
|
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
|
aa8a192c7e
|
Simplified API down to their being a single texture with a specified depth.
|
2016-03-19 17:37:55 -04:00 |
|
Thomas Harte
|
7255408313
|
Experimented with going back to horizontal sync on leading edge; not sure so (temporarily?) disabled.
|
2016-03-08 22:54:05 -05:00 |
|