Thomas Harte
2f491b5be1
Reintroduces fragment snapping for composite colour sampling.
...
Thereby uncovers some sort of slightly-off recording of scan lines. On the Apple II, individual scans reach the ScanTarget at a density of exactly 0.25 colour cycles per pixel. So that timing information propagates exactly. But the whole lines that are composed via ::announce end up trying to fit 0.250154 colour cycles per pixel. Which creates a phase error as the display progresses from left to right.
This will need to be resolved in order to be able to fix the Apple II's intended colour phase. But, also, it's probably what was wrong with the Oric. And, quite possibly, why the single-step shader didn't work.
2019-02-24 13:39:14 -05:00
Thomas Harte
de7ebead23
Ensures the line_allocation_has_failed_ condition can be exited.
2019-02-21 22:30:41 -05:00
Thomas Harte
c0c4704419
Ensures that failure to allocate a line blocks all other allocations.
2019-02-21 21:38:48 -05:00
Thomas Harte
080f949f89
Ensures OpenGL version is logged prior to any other GL calls.
2019-02-20 20:21:17 -05:00
Thomas Harte
ddf5e1632d
Ensures log memory is automatically initialised.
2019-02-18 22:08:03 -05:00
Thomas Harte
40bfde41cb
Adds an OpenGL version shout out.
2019-02-18 22:01:56 -05:00
Thomas Harte
e0751af56d
Handles the 0 return case.
2019-02-18 21:56:49 -05:00
Thomas Harte
3979faf43b
Gets more explicit about potential causes of failure.
2019-02-18 21:53:35 -05:00
Thomas Harte
878b480a44
Tidies up marginally.
2019-02-18 21:37:07 -05:00
Thomas Harte
b35b6b2ba8
Resolves a couple of missing #includes for cassert.
2019-02-18 21:29:39 -05:00
Thomas Harte
6b2e1fe62b
Makes error reporting more communicative.
2019-02-18 11:13:54 -05:00
Thomas Harte
8ecf885629
Attempts to put in better OpenGL safety rails.
2019-02-18 10:29:40 -05:00
Thomas Harte
6d76b7cd94
Attempts to ensure proper colour output during alternating PAL lines.
2019-02-17 21:50:15 -05:00
Thomas Harte
7bd721f334
Resolves improper state if an end-of-frame clear is triggered by the first new line.
2019-02-17 21:49:53 -05:00
Thomas Harte
ec8f1157c8
Corrects S-Video output.
2019-02-12 19:31:12 -05:00
Thomas Harte
037cbd534e
Corrects phase error in chrominance separation.
2019-02-12 19:24:28 -05:00
Thomas Harte
208ef70e31
Corrects documentation.
2019-02-12 18:55:58 -05:00
Thomas Harte
2fa4c59523
Correction: use the QAM texture for colours.
2019-02-12 18:42:28 -05:00
Thomas Harte
cda0a2de79
Establishes QAM colour buffer lookups within the composite colour path.
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Subject to errors in channel scaling and absolute position.
2019-02-10 23:02:31 -05:00
Thomas Harte
008f50832c
Fixed: the two shaders that use a common input array should use common bindings.
2019-02-10 22:39:24 -05:00
Thomas Harte
c94acb1ca2
With a little more debug logging, discovered an issue with incrementing by four.
2019-02-09 22:45:20 -05:00
Thomas Harte
d341f98b09
Corrects horizontal scale.
2019-02-09 18:52:43 -05:00
Thomas Harte
e35a3ab566
Ensures proper uniforms and varyings for the qam_separation_shader.
2019-02-09 18:35:14 -05:00
Thomas Harte
b3b4b7cf0c
Corrects QAM texture generation logic.
2019-02-09 17:20:13 -05:00
Thomas Harte
1cd6d58f17
Restores S-Video through line, as monochrome.
2019-02-09 17:13:43 -05:00
Thomas Harte
eecd4417e7
Bites the bullet and accepts that an additional texture will be useful for QAM separation.
2019-02-09 16:54:31 -05:00
Thomas Harte
798cc58f76
Simplifies the composite colour shader no longer to handle colour.
2019-02-05 19:22:35 -05:00
Thomas Harte
6ba1194d74
Sets a clear colour appropriate for phase-linked luminance clearing.
2019-02-03 22:33:04 -05:00
Thomas Harte
e5f75b5df2
Resolves repetition between svideo_sample and composite_sample.
2019-02-03 22:09:16 -05:00
Thomas Harte
b75ad3def2
Updates the multimachine for the ScanTarget world.
2019-02-03 15:07:22 -05:00
Thomas Harte
caf72afcb4
Switches to a seven-point scheme, to determine whether falsely-shared luminance is at fault.
...
It doesn't seem to be, alas.
2019-01-31 21:19:30 -05:00
Thomas Harte
687e0b376e
Enhances error checking around setting of uniforms.
2019-01-31 21:17:49 -05:00
Thomas Harte
122857e5b5
Improves automatic index generation, to allow for matrices implicitly taking up to four slots.
2019-01-31 18:49:01 -05:00
Thomas Harte
5002290428
Makes consistent use of textureLod rather than texture.
2019-01-26 22:05:15 -05:00
Thomas Harte
d09ac3384f
Eliminates some old-school manual memory management.
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In favour of additional copying, but I still think this is safer.
2019-01-25 22:54:23 -05:00
Thomas Harte
b6a4a7e0a5
This is no longer TODO.
2019-01-25 22:47:15 -05:00
Thomas Harte
c87994336c
Switches the Shader class to using LOG.
2019-01-25 22:45:47 -05:00
Thomas Harte
85ad490089
Offers a less error-prone route to attribute binding.
2019-01-25 21:56:55 -05:00
Thomas Harte
68d6feaa03
Adds missing includes and gets more explicit about exceptions.
2019-01-25 20:19:50 -05:00
Thomas Harte
74e1a9a621
Declines improper use of offset within loops and adds missing header.
2019-01-25 20:14:53 -05:00
Thomas Harte
6a43fc5df0
Resolves a GCC-troubling circular declaration issue vs. atomic.h.
2019-01-25 19:30:39 -05:00
Thomas Harte
312f38906b
Corrects two improper include paths.
2019-01-25 19:19:23 -05:00
Thomas Harte
6a93d2d006
Corrects some minor spaces-instead-of-tabs errors.
2019-01-24 22:59:03 -05:00
Thomas Harte
ae0bc7e7aa
Calculates sampling offsets up front.
2019-01-23 20:53:10 -05:00
Thomas Harte
a8acadbe13
Gives the shader builders freer rein over what to use as inputs, and turns angles into a varying.
...
All dropping out during the never-ending diagnosis at play here.
2019-01-22 22:20:12 -05:00
Thomas Harte
727f2e2ba0
Updates to the ScanTarget world.
2019-01-17 22:28:02 -05:00
Thomas Harte
a6683cb9b8
Avoids scaling luminance prior to extracting chrominance.
2019-01-17 20:52:33 -05:00
Thomas Harte
d593796dae
Reintroduces less-filtered black and white video where there's no colour burst.
2019-01-16 22:22:29 -05:00
Thomas Harte
ef0dbc2a41
Undoes hard-coding of target framebuffer and display gamma.
2019-01-15 21:33:30 -05:00
Thomas Harte
6c49953115
Returns gamma correction, and corrects Amstrad CPC brightness.
2019-01-14 22:56:08 -05:00
