394 Commits

Author	SHA1	Message	Date
Thomas Harte	363e14a92f	Reorganised system ROMs out of the Mac-specific folder, adjusted Mac code to expect to find them organised hierarchically (as how many os.roms am I going to have?) and added readme files to explain what's missing from the Git repository.	2016-06-05 08:33:01 -04:00
Thomas Harte	4c33517228	Added ROMs to the project and ensured they don't get uploaded.	2016-06-04 22:03:38 -04:00
Thomas Harte	b10a06e700	A CRT is still absent but this moves the ball back into the C++ side's court.	2016-06-04 22:00:50 -04:00
Thomas Harte	404873fe58	Started sketching out infrastructure for Vic-20 support.	2016-06-04 21:43:50 -04:00
Thomas Harte	d6e8cd676a	Trimmed and reordered just a little.	2016-06-04 16:02:16 -04:00
Thomas Harte	5c4f35e13f	Finally started on generalising the C++ stuff so as to be able to be able to get a working audio binding on the OS-specific side without further repetition by factoring an appropriate protocol out from the Electron and sketching out the correct speaker class for the Atari. Added a method to ask it what a good output frequency would be.	2016-05-31 21:23:44 -04:00
Thomas Harte	8538b62ea2	Made an attempt to extract and consolidate the logic behind the intermediate shaders.	2016-04-28 21:04:59 -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	4ac1f959e9	A shortcut here and a shortcut there; this allows me at least to determine whether use of a PBO gains anything.	2016-03-19 17:07:05 -04:00
Thomas Harte	4cd0aa3416	Completed FIR filter based audio output.	2016-03-15 23:37:35 -04:00
Thomas Harte	7694297c83	Introduced an adapted version of the previous Clock Signal's FIR filter.	2016-03-15 21:05:20 -04:00
Thomas Harte	cfa616d593	Fixed: timing issue versus supplied test ROM was failure to include the Plus 1 ROM in the mix.	2016-03-12 11:51:20 -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	14b2927275	Made further attempts to tidy up; trying to demarcate between public interface and private.	2016-03-08 20:59:16 -05:00
Thomas Harte	41c09f8c3f	Renamed CSCathodeRayView to CSOpenGLView as it no longer has any CRT-related responsibilities. It just does the GL and manages a serial dispatch queue.	2016-03-05 14:45:09 -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	a6574d1f96	Made an attempt to factor out and more clearly to document my implementation of flywheel synchronisation.	2016-02-11 22:12:12 -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
Thomas Harte	602327cd9d	Sketched out a quick class for rendering to texture.	2016-02-07 15:42:02 -05:00
Thomas Harte	e0d51408e4	Onward with carrying this through to the bitter end, this at least results in all the appropriate knowledge and call-ins occuring at the CRT.	2016-02-04 22:28:50 -05:00
Thomas Harte	5a39e42413	Wired up enough such that some basic attempt at parsing a UEF occurs.`	2016-01-18 17:06:09 -06:00
Thomas Harte	2779f0e569	Statred working on support for at least the most fundamental file format.	2016-01-18 15:46:41 -06:00
Thomas Harte	38ffcaa262	Here, at last, is _some_ audio output, at least.	2016-01-14 20:33:22 -05:00
Thomas Harte	84ba4e2900	Tidied a little, started working towards supporting speaker output.	2016-01-12 22:19:56 -05:00
Thomas Harte	3437781abd	Started sketching out an interface for sound generation. Which made me realise that the CRT in CRTDelegate was redundant, since C++ has namespaces.	2016-01-12 16:54:09 -05:00
Thomas Harte	e93dbdb463	Implemented keyboard input.	2016-01-11 19:48:31 -05:00
Thomas Harte	0db8938d27	Added the option for the CSCathodeRayView to show only a subsection of the full scan area. Zoomed in a little on the 2600. Put in enough piping to give the Electron sight of its ROMs at least.	2016-01-06 23:14:36 -05:00
Thomas Harte	616dc0b57c	Okay, so this is the absolute bare minimum about of refactoring and wiring necessary to get the [unimplemented] Electron machine pumping.	2016-01-04 23:40:43 -05:00
Thomas Harte	43ab8bbad5	Okay, so then here's a first shot at the Objective-C -> C++ bridge for the Electron.	2016-01-04 23:16:37 -05:00
Thomas Harte	ab45c1d530	Started working on a shell for the Electron emulation, including factoring out the common CRT delegate -> Objective-C bridging, serial dispatch queue and frameskipping logic from the Atari 2600 shell.	2016-01-04 23:12:47 -05:00
Thomas Harte	aa0714fe27	Started sketching out an Acorn Electron emulation, as it's a platform I'm familiar with and will force me to figure out PAL decoding. Factored out NTSC-specific parts of the display decoding logic and hence added RGB output mode.	2016-01-03 20:41:43 -05:00
Thomas Harte	bc805a90fe	Wired up joystick directions, at least, and fire button presses get as far as the C++. But there's some latching to figure out before they'll work.	2015-08-18 20:33:24 -04:00
Thomas Harte	a693c081f8	Switched on the appropriate compiler warnings re: signed comparisons and implicit conversions. Fixed all less-than-explicit calls.	2015-08-16 16:08:29 -04:00
Thomas Harte	d19f8ed507	Removed the implicit reset upon 6502 startup, adding a reset line. Hence all tests now pass again. Added an empty shell for timing tests, the all-RAM 6502 now counting bus cycles.	2015-08-13 00:51:06 +01:00
Thomas Harte	3c25ead1f3	Started working out some of my retain cycles and general failures to release. Switched .mm filename so that Xcode will stop getting confused when I try to switch between implementation and interface files.	2015-07-27 21:15:10 -04:00
Thomas Harte	6252f6030f	Switched to idiomatic source name, ensured latest project name is in all appropriate header places, threw texture coordinates slightly into the shader mix.	2015-07-26 15:25:11 -04:00
Thomas Harte	ecb2898bd5	The overall architecture of who has responsibility for what is now very askew but: the CRT now outputs a tightly packed short buffer, with the probable OpenGL destination in mind. So it's now all fixed arithmetic internally. CRTFrame is reduced to a plain C struct with the intention that the OpenGL view will take responsibility for it and stop doing the back-and-forth sprint on getting buffer data. The Atari 2600 now outputs explicit blanks rather than level blacks for its border, so that it's easier visually to debug the CRT in its form as far as it has currently progressed: to drawing lines where the cathode ray gun would run while outputting pixel. I note that I'm still not quite getting vertical sync right yet — I'm just accepting it anywhere in teh frame — but that should be an easy fix.	2015-07-24 23:29:45 -04:00
Thomas Harte	2d0f861474	Incoming: a 'CRT' class, to receive information intended for a cathode ray tube. To decode sync, etc.	2015-07-19 13:36:27 -04:00
Thomas Harte	e0aa1e9f19	Minor project rearrangement to aid findability.	2015-07-17 09:10:23 -04:00
Thomas Harte	1df2c48668	Introduced my GL view as the window content.	2015-07-16 21:01:49 -04:00
Thomas Harte	5160b6bbb8	Separated out different test suites into different XCTest subclasses.	2015-07-16 20:52:16 -04:00
Thomas Harte	3e0679235a	This now goes just far enough to create an instance of Atari2600::Machine and push a ROM to it. Next jobs are to get a basic CRT emulation wired up, outputting to the window.	2015-07-16 20:40:46 -04:00
Thomas Harte	24c0579b94	Shuffled things and guessed at things until the Xcode project was happy being subservient to the project proper.	2015-07-16 20:27:31 -04:00