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 |
|
Thomas Harte
|
bf5747f83e
|
Made an attempt to chop out all the stuff of building up the OpenGL data from the stuff of parsing input.
|
2016-03-08 22:40:23 -05:00 |
|
Thomas Harte
|
c7976dd657
|
Started trying to clean up my Outputs namespace by moving stuff related to the CRT underneath a separate subnamespace.
|
2016-03-08 20:49:07 -05:00 |
|
Thomas Harte
|
eefd17ed4c
|
Fixed sync response in composite scan output generation and stored texture coordinates.
|
2016-03-05 21:52:22 -05:00 |
|
Thomas Harte
|
6cddb4c9c8
|
Added a first attempt to generate output scans for composite mode. So this in theory completes the CPU side of composite operations. Though I'm sure problems will reveal themselves.
|
2016-03-05 21:18:28 -05:00 |
|
Thomas Harte
|
3f39803d32
|
Switched to triangle strips, to eliminate the need for any temporary storage for the composite output path.
|
2016-03-05 20:47:11 -05:00 |
|
Thomas Harte
|
23c223e2ed
|
Started edging towards completing the CPU side of accumulating enough data for composite decoding.
|
2016-03-05 17:55:18 -05:00 |
|
Thomas Harte
|
5c8db71c64
|
Corrected some constants, ensured both machines (so far) are setting the output device.
|
2016-03-05 16:19:10 -05:00 |
|
Thomas Harte
|
70b6d51451
|
Ever more baby steps back towards composite decoding.
|
2016-03-05 14:36:12 -05:00 |
|
Thomas Harte
|
3449120c24
|
Added a note to future self, put the scan edge generator back to the way round it was before.
|
2016-02-27 22:51:37 -05:00 |
|
Thomas Harte
|
7839d93344
|
With the provision of an extra hint to the CRT and, finally, the realisation about why my scans weren't exactly joining up, improved output precision.
|
2016-02-27 22:39:01 -05:00 |
|
Thomas Harte
|
1c6de7692d
|
Made an attempt to fix tape output interrupts; offloaded raster width and placing conversion to the GPU.
|
2016-02-27 20:37:41 -05:00 |
|
Thomas Harte
|
db18c85423
|
Simplified the run builder rather; put a double check of Electron timing in place.
|
2016-02-25 22:01:42 -05:00 |
|
Thomas Harte
|
574985f9a2
|
Fixed interlaced timing; switched to a more robust detector for horizontal sync; eliminated some test logging.
|
2016-02-20 20:29:40 -05:00 |
|
Thomas Harte
|
1954f7bcbd
|
Got back to a stable image, at least when staying in a mode. Which is what I was trying to fix. Hmmm.
|
2016-02-19 23:41:09 -05:00 |
|
Thomas Harte
|
ce3c098c28
|
Widened beam a little, moved to a linear approximation of age across scans, cut number of stored frames.
|
2016-02-16 21:48:09 -05:00 |
|
Thomas Harte
|
b261e86c62
|
Reintroduced lateral as a parameter in CRT drawing, to simulate a rounded raster.
|
2016-02-16 20:37:04 -05:00 |
|
Thomas Harte
|
697e50c0cc
|
Screen output is back, no matter how inefficiently.
|
2016-02-13 23:50:18 -05:00 |
|
Thomas Harte
|
eeb0e134fd
|
Started the transition towards a more natural collection of rolling buffers, with phosphor decay in mind.
|
2016-02-13 20:52:23 -05:00 |
|
Thomas Harte
|
0a09762be6
|
Fixed output precision compared to the new approach of trusting the flywheel for position, and eliminated fixed-Acorn constants. Also re-enabled the faded previous frame, at least temporarily.
|
2016-02-12 19:53:49 -05:00 |
|
Thomas Harte
|
1d20a29d97
|
Made an attempt to switch to the flywheels for both vertical and horizontal sync, and to act more appropriately for out-of-bounds sync requests. Lots of tweaking to do, I fear.
|
2016-02-11 23:43:08 -05:00 |
|
Thomas Harte
|
c81891ec43
|
Minor tidying and at least acknowledged the new flywheel encapsulation.
|
2016-02-11 22:13:38 -05:00 |
|
Thomas Harte
|
b5bcadb8d3
|
Reinstated clipped CRT output, with more appropriate ownership of the decision.
|
2016-02-07 22:18:55 -05:00 |
|
Thomas Harte
|
4d0a218a57
|
Certainly at least seriously considering a separate holder for the "compile a shader" logic. Otherwise taking steps back towards PAL/NTSC decoding.
|
2016-02-07 17:32:38 -05:00 |
|