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Commit Graph

4355 Commits

Author SHA1 Message Date
Thomas Harte
36d19cb6cf Made an attempt at properly pumping timers during hmove. 2016-05-21 10:18:15 -04:00
Thomas Harte
a952813036 Fixed missile sizes, played about with ball placement. 2016-05-19 18:30:17 -04:00
Thomas Harte
cf5b8ab92e This is now approximately back to where it was on Cosmic Ark. 2016-05-19 08:30:10 -04:00
Thomas Harte
40600b4bcb Made sprite placement consistent at least. Not necessarily yet correct. 2016-05-18 22:07:24 -04:00
Thomas Harte
e61392d3fb Fixed incorrect duplication. 2016-05-18 21:50:28 -04:00
Thomas Harte
3765c5fbb5 Fixed error that would prevent an interrupting frame from ever being drawn. 2016-05-18 21:45:35 -04:00
Thomas Harte
8c7ce1ec3f Attempted to fix sprite sizing and, again, missile repetition. 2016-05-18 21:41:25 -04:00
Thomas Harte
d013d46337 Fixed object motion decoding and checking of the repeat mask for missile graphics. 2016-05-18 21:36:28 -04:00
Thomas Harte
83ed6a82cf Fixed: asserting vertical blank doesn't affect underlying timing. 2016-05-18 18:49:40 -04:00
Thomas Harte
877c55b5c5 Threw in missiles. To 'complete' graphics output. Or, rather, to move me on to debugging. 2016-05-18 07:54:44 -04:00
Thomas Harte
354143a78c Reintroduced an attempt to plot sprites. 2016-05-18 07:51:25 -04:00
Thomas Harte
0b99649b0f Had a first shot at triggering player and missile resets. 2016-05-18 07:31:05 -04:00
Thomas Harte
b8708b805c The vertical blank flag now works again. 2016-05-17 22:02:57 -04:00
Thomas Harte
a1e63e8320 Attempted to generalise on pixel counter storage, at least. Further adjusted background timing but I'm still not sure. 2016-05-17 21:41:32 -04:00
Thomas Harte
ad6f405483 Fixed: was off by one on pixels, allowing four extra pixel output cycles per line. 2016-05-17 19:02:32 -04:00
Thomas Harte
c96674b341 Made genuine first approximate attempt at hmove. 2016-05-17 18:35:40 -04:00
Thomas Harte
d170bb14e6 Extended scheduling plans, inserted initial events for hmove, albeit not yet implemented. 2016-05-17 18:21:49 -04:00
Thomas Harte
6a961c4d28 Added something of the ball counter, but without yet a working HMOVE it's prone to error. 2016-05-17 07:18:14 -04:00
Thomas Harte
7d3cf76576 Generalised slightly, to allow events to be queued up to eight cycles in advance; most importantly each event gets to pick its own delay. 2016-05-17 07:09:18 -04:00
Thomas Harte
3d003070b3 Made an attempt better to generalise the idea of things with 4 CLK delays. 2016-05-16 21:54:27 -04:00
Thomas Harte
4ad074fc78 Introduced a four-cycle delay between playfield fetch and display, curing Yar's Revenge. Also disabled barrel roll scanling colouring again. I really need to make my mind up on that. 2016-05-16 19:55:56 -04:00
Thomas Harte
f19ed2e8f8 Started merely attempting to reintroduce the background layer. 2016-05-16 19:04:13 -04:00
Thomas Harte
9d92ad659f Established the basic timing loop, albeit without clocking delays yet. 2016-05-16 08:01:29 -04:00
Thomas Harte
bf2932cd57 Merge pull request #16 from TomHarte/UniformSetters
Implemented deferred setting of shader uniforms
2016-05-15 15:22:06 -04:00
Thomas Harte
00a2b42080 Made thread-safe. 2016-05-15 15:19:52 -04:00
Thomas Harte
091516e3cb The semantics might need better exposition but: fixed UniformXfv calls plus matrix calls, documented new semantics on all setters. 2016-05-15 14:59:59 -04:00
Thomas Harte
328fabcd10 Ensured values aren't dangling pointers. 2016-05-14 18:15:10 -04:00
Thomas Harte
492dc7ccbf Made an attempt to queue uniform changes until the next call to bind. That's to allow usage from other threads. 2016-05-14 18:06:55 -04:00
Thomas Harte
cca53598d3 Made another run at 2600 colours. 2016-05-14 16:52:24 -04:00
Thomas Harte
30f335fa35 Switched pervasively to using the named slot uniform setters on Shader. 2016-05-13 22:08:32 -04:00
Thomas Harte
f487062c62 Merge pull request #15 from TomHarte/2600PAL
Adds an implementation of the PAL-region colour phase shift formula
2016-05-13 09:00:25 -04:00
Thomas Harte
8d52765f40 Realised why new shaders weren't taking. Very negligibly decreased Atari drawing cost. 2016-05-12 22:22:24 -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
93760bf8fa Merge pull request #12 from TomHarte/FixedTests
Ensured that calling `return_from_subroutine` really does unjam the processor if required
2016-05-10 21:45:24 -04:00
Thomas Harte
e636ae37b4 Ensured that calling return_from_subroutine really does unjam the processor if required, causing all tests once again to pass. 2016-05-10 21:44:11 -04:00
Thomas Harte
5a4262d74e Confirmed: it is inaccurate for a 6502 to self reset at power up. So that responsibility now rests in the machines. 2016-05-10 21:05:52 -04:00
Thomas Harte
fab59cbc64 Merge pull request #11 from TomHarte/SourceInstancing
Following the output run switch, switched also to instanced rendering for intermediate scans.
2016-05-10 20:00:32 -04:00
Thomas Harte
a8ce021136 Fixed comment. 2016-05-10 19:59:03 -04:00
Thomas Harte
0d2d6a452d Fixed some dangling buffer management issues. 2016-05-10 19:55:34 -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
47ae402f7e Introduced a shorthand for setting up array attributes. 2016-05-10 19:11:48 -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
309313c470 Update CRTConstants.hpp
Lack of data duplication means this storage can be smaller.
2016-05-10 10:49:48 -04:00
Thomas Harte
fa34b9c67b Merge pull request #10 from TomHarte/NewInstancing
Introduces use of array instancing for output runs.
2016-05-10 07:51:27 -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
b0f0315f12 Fixed: this now implements 12-byte instancing for output runs. 2016-05-10 07:30:12 -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
4592458ea0 Merge pull request #9 from TomHarte/RollingBlackLine
Found and fixed off-by-one error.
2016-05-09 21:16:58 -04:00