Commit Graph

101 Commits

Author SHA1 Message Date
Lucas Scharenbroich
7ec1b8bc29 Fix dumb initialization bug in sprite plane 2021-10-28 21:52:48 -05:00
Lucas Scharenbroich
4e46a6af85 WIP: manual sprite rendering showing on screen 2021-10-28 21:41:01 -05:00
Lucas Scharenbroich
2feb6f590b Add address in sprite plane for tile rendering; use in tile dispatcher 2021-10-27 00:14:19 -05:00
Lucas Scharenbroich
cc18c67491 Expand tile blitter temp space 2021-10-27 00:11:13 -05:00
Lucas Scharenbroich
82c1a8e2e4 Remember to cacluate the tile address when adding to the dirty tile list 2021-10-26 21:34:38 -05:00
Lucas Scharenbroich
0366c1a0e0 Fix missing index in the dirty tile initializations 2021-10-26 21:21:08 -05:00
Lucas Scharenbroich
3b8bf652e1 Continued bug fixing
* Missed an XBA to swap tile command bits into a proper index range
* Explicitly track the BASE_ADDR
* Fix some register overwriting
* Add an UpdateSprite method
2021-10-23 22:31:38 -05:00
Lucas Scharenbroich
494673416b Fix several incorrect uses of internal API; work toward functional demo 2021-10-22 00:56:12 -05:00
Lucas Scharenbroich
4e779e71d2 Tile rendering reorganization
This significantly simplifies the dispatch process by creating a
proper backing store for the tiles.  Most values that were
calcualted on the fly are now stored as constants in the tile
store.

Also, all tile updated are run through the dirty tile list which
solved a checken-and-egg problem of which order to do sprites vs
new tiles and affords a lot of optimizations since tile rendering
is deferred and each tile is only drawn at most once per frame.
2021-10-21 08:50:07 -05:00
Lucas Scharenbroich
c4762888ed Add brief readme to start documenting the internals of GTE 2021-10-21 08:47:17 -05:00
Lucas Scharenbroich
4d224a92d9 Fix pre-shift bug in the tile address calculation 2021-10-11 16:47:38 -05:00
Lucas Scharenbroich
4338b64338 First cut at a non-trivial overlay. Pallettes and tile indexes still to be fixed 2021-10-11 14:09:38 -05:00
Lucas Scharenbroich
2966b1052b Add rendering path for masked dynamic tiles 2021-10-07 23:54:45 -05:00
Lucas Scharenbroich
d5421afdbd Fix off-by-one issue in tile IDs and make the entry point consistent in the code field generator 2021-10-07 18:33:06 -05:00
Lucas Scharenbroich
4006f76c02 Fix bcc/bcs typo when initializing timers 2021-10-07 16:38:20 -05:00
Lucas Scharenbroich
87ded17e20 Initial Tiled tile animation export support
* Tiled tile animations read from TSX files
* Hooks for initialization generated by the tiled export tool
* Animated tiles implements with dynamic tiles backed by 2KB of direct
  page space in Bank 00
* Animation resolution limited to 1/60th incremenents

TODO
* Fix crasher in the _DoScriptSequ timer callback
* Fix single-line of garbage on the top line of the dynamic tiles
2021-10-06 07:10:09 -05:00
Lucas Scharenbroich
a82c1248db Add untested framework for handling fringe tile rendering 2021-08-30 22:14:04 -05:00
Lucas Scharenbroich
f55192436a Final reorg; all projects build into a unified disk image for testing 2021-08-26 17:15:44 -05:00
Lucas Scharenbroich
dcf93892a7 Reorg some more files and tweak paths 2021-08-26 16:45:23 -05:00
Lucas Scharenbroich
2e11ba74ee Rename memory init file 2021-08-26 16:43:14 -05:00
Lucas Scharenbroich
1263375095 Move test app into its own demo folder 2021-08-26 16:24:46 -05:00
Lucas Scharenbroich
69c6104742 Small initialization and jsr/jsl updates 2021-08-26 16:12:08 -05:00
Lucas Scharenbroich
4af66fa13a Fix initialization order 2021-08-26 09:45:40 -05:00
Lucas Scharenbroich
fe18759759 Refactor original demo driver to use GTE Core; move functions around 2021-08-26 08:52:43 -05:00
Lucas Scharenbroich
7d5f7aa721 Refactor GTE Core to be included as an independent Segment in other projects 2021-08-25 09:38:02 -05:00
Lucas Scharenbroich
23f7e5b0fb Fully flesh out Script execution implementation 2021-08-25 09:28:53 -05:00
Lucas Scharenbroich
740a0f260d Fix bug that causes one-shot timers to loop forever 2021-08-24 15:58:36 -05:00
Lucas Scharenbroich
48bb361730 Early peek at the Timers/Scripting engine 2021-08-24 15:45:33 -05:00
Lucas Scharenbroich
238d2f0a6f Fix banking bug and enable BG1 tile maps 2021-08-20 20:20:47 -05:00
Lucas Scharenbroich
e607612344 Add initial build-out of BG1 tile map support 2021-08-19 01:22:36 -05:00
Lucas Scharenbroich
4c5b090afe Fix crashing bug when replacing BG1 tiles with BG0 tiles 2021-08-19 01:21:37 -05:00
Lucas Scharenbroich
07ac2b017f Fix indexing error in Tiled export. Solid tiles are no longer marked as masked 2021-08-19 00:47:34 -05:00
Lucas Scharenbroich
4609b5c4b9 Identify tiles that should be masked from Tiled maps 2021-08-17 16:23:23 -05:00
Lucas Scharenbroich
55e15aa894 Restore full tile dispatcher code 2021-08-17 09:46:45 -05:00
Lucas Scharenbroich
b35a2c1e6e Complete masked tile rendering implementation
The core data tables were reworked to pre-reverse all of the
entries to directly match the right-to-left ordering of the code
fields.  This simplified some code but was required for register
reuse in the masked tile renderer.

Also fixed several offset calculation issues in the masked tile
renderer.
2021-08-17 09:33:27 -05:00
Lucas Scharenbroich
5ad95f4609 Use 8-bit accumulator to read softswitches 2021-08-15 09:25:42 -05:00
Lucas Scharenbroich
2540359f60 Fix plx/pla ordering in tile dispatcher 2021-08-14 21:56:08 -05:00
Lucas Scharenbroich
1492ac3b36 Map Tiled Horizontal and Vertical flip flags onto GTE equivalents 2021-08-14 21:22:21 -05:00
Lucas Scharenbroich
232f94d30e Fix layer comparison function 2021-08-14 21:09:35 -05:00
Lucas Scharenbroich
d9133a2170 Switch to using exported Tiled project assets 2021-08-14 20:58:37 -05:00
Lucas Scharenbroich
ce51563913 Fix small code issues and sync up tool output with code changes. Maps render again with solid tiles 2021-08-13 11:57:41 -05:00
Lucas Scharenbroich
652729081e Stub in more tile rendering functions; does not crash but renders incorrectly 2021-08-13 11:38:06 -05:00
Lucas Scharenbroich
90124b04bc First draft of masked tile support
Need to have the called provide a copy of the base line address to the
masked drawing code and need to verify that the JTable entries are
ordered the same way as the byte offset so the same register can be used
to load the JMP addresses and patch in the LDA (DP),y instructions.
2021-08-13 10:05:28 -05:00
Lucas Scharenbroich
e3cb742626 Fix tile rendering
This is not quite correct yet.  IT appears that two rows or columns are
drawn on the edges when only a single solumn or row is necessary.  Also,
this code is based on the old GTE codebase, so the initial rectangle for
rendering tiles is width+1, height+1. This can be improved.
2021-08-10 07:59:14 -05:00
Lucas Scharenbroich
b9fced46cd Debugging overlay to show variables on screen 2021-08-10 07:58:09 -05:00
Lucas Scharenbroich
97d05ee926 Fix wrong variable 2021-08-09 09:17:25 -05:00
Lucas Scharenbroich
d3b21a91b9 Fix full-screen tile refreshes; incremental tile drawing crashes 2021-08-09 06:08:09 -05:00
Lucas Scharenbroich
8d34da6c26 Add the old SMB keyboard read function to detect key-down instead of key-press 2021-08-07 21:22:37 -05:00
Lucas Scharenbroich
8d31720e1c Add an extra column when coordinates are not tile-aligned 2021-08-07 21:21:28 -05:00
Lucas Scharenbroich
8ed851cb33 First pass at importing tilesets into GTE 2021-08-06 16:35:47 -05:00