Apple-2gs-SW/iigs-game-engine
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424 Commits 5 Branches 1 Tag 36 MiB
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Commit Graph

271 Commits

Author SHA1 Message Date
Lucas Scharenbroich
3292572261 Add TwoLayer rendering stubs 2022-06-22 15:29:09 -05:00
Lucas Scharenbroich
280d19876c Fix a nasty macro/lup bug 2022-06-22 00:09:08 -05:00
Lucas Scharenbroich
4c1dba0f68 Complete Dynamic Tile renderer 2022-06-21 23:13:28 -05:00
Lucas Scharenbroich
76a9710114 Add dynamic rendering functions 2022-06-21 15:28:58 -05:00
Lucas Scharenbroich
a91f39aab8 Remove dead code and implement Slow tile renderers in terms of the Fast once to avoid code bloat 2022-06-21 13:33:17 -05:00
Lucas Scharenbroich
2820d318a0 Final cleanups for Fast mode 2022-06-21 11:23:06 -05:00
Lucas Scharenbroich
400851259d More minor fixes 2022-06-21 10:06:17 -05:00
Lucas Scharenbroich
553fd3c02a Tweaking updated sprite dispatch flow 2022-06-21 07:29:18 -05:00
Lucas Scharenbroich
4ea3033b5e Get minimal tiles and sprites rendering without a crash 2022-06-20 17:57:19 -05:00
Lucas Scharenbroich
1f9c9b3f5b Checkpoint of final tile proc reorg for generalize new infrastructure for different engine modes 2022-06-20 15:55:09 -05:00
Lucas Scharenbroich
12b05139c2 Move to tables of dispatch tuples to set tile rendering information 2022-06-14 14:21:51 -05:00
Lucas Scharenbroich
d3da96a834 Add in the special Tile 0 render routines 2022-06-14 08:12:33 -05:00
Lucas Scharenbroich
7af4a216a0 Add modular dispatch for copy routines; add initial support for tile priority bit 2022-06-12 05:28:12 -05:00
Lucas Scharenbroich
955cf4a580 Remove unused memory and start working on priority renderer 2022-06-09 07:41:58 -05:00
Lucas Scharenbroich
e5938cb3c7 Change the entry points based on the engine mode 2022-06-08 23:34:15 -05:00
Lucas Scharenbroich
3c41e97b0f Move dispatch table into K bank and save 9 cycles per tile in dispatch 2022-06-08 17:34:23 -05:00
Lucas Scharenbroich
227643d7df Fix H+V sprite stamp renderer 2022-06-08 17:17:28 -05:00
Lucas Scharenbroich
388470c133 Fix left-edge sprite rendering glitch; was an issue with not erasing sprites when they transition to IS_OFFSCREEN status 2022-06-08 14:25:52 -05:00
Lucas Scharenbroich
1de4c0bc7f Make sure all macros add the vbuff offsets 2022-06-07 10:05:52 -05:00
Lucas Scharenbroich
3591c494bf Add three-sprite rendering function 2022-06-07 10:05:40 -05:00
Lucas Scharenbroich
2c409b02a7 Fix lookup tables to fix boundary rendering 2022-06-06 20:10:15 -05:00
Lucas Scharenbroich
b6202ca44c Implement framework for adjusting VBuff tables to handle boundary transitions 2022-06-06 11:23:00 -05:00
Lucas Scharenbroich
36d57f7c2d Fix signed calculations for negative sprite X and Y coordinates 2022-06-02 23:02:06 -05:00
Lucas Scharenbroich
783e813dc2 Implement overlapping rendering for two sprites 2022-06-02 13:59:15 -05:00
Lucas Scharenbroich
e6251f05a3 Clean up constants and fix bad addressing mode 2022-06-02 13:06:26 -05:00
Lucas Scharenbroich
4f557230c6 Remove some dead code and streamline some addressing. Fix bug in dispatch macro 2022-06-02 12:28:49 -05:00
Lucas Scharenbroich
83ec527b06 Make the test demo more sophisticated; multiple sprites 2022-06-01 22:24:45 -05:00
Lucas Scharenbroich
24ebb1f3af Fix Tile Store lookup initialization bug 2022-06-01 21:12:54 -05:00
Lucas Scharenbroich
a938639c1b Fix initialization bug in TileStore 2022-06-01 13:55:04 -05:00
Lucas Scharenbroich
b022162036 Fix vertical offset bug; was using the TileStore lookup index, not the TileStore offset 2022-06-01 09:19:28 -05:00
Lucas Scharenbroich
cde517bcc9 Fix single-step vertical displacement issue 2022-06-01 07:50:19 -05:00
Lucas Scharenbroich
dec50bc6fc Fix several bugs; biggest one in the SpriteStamp routine 2022-05-31 22:53:33 -05:00
Lucas Scharenbroich
98adfe5daa Continuing to tweak and debug 2022-05-31 16:31:44 -05:00
Lucas Scharenbroich
bba8929db7 PRoperly initialize Lookup tables 2022-05-31 13:01:09 -05:00
Lucas Scharenbroich
10d6dc5931 Fix crashing when trying to render sprite; sprite not visible but have end-to-end code execution 2022-05-31 09:14:25 -05:00
Lucas Scharenbroich
78d7dafe14 Another checkpoint; converging on the working implementation 2022-05-31 08:43:26 -05:00
Lucas Scharenbroich
7909113a97 Checkpoint 2022-05-26 19:36:40 -05:00
Lucas Scharenbroich
5577105be8 Complete unrolled loop for clearing sprites from the tile store 2022-05-23 15:18:34 -05:00
Lucas Scharenbroich
9da3616c1d Start working to bring sprites rendering back into the pipeline 2022-05-22 23:54:47 -05:00
Lucas Scharenbroich
d27b10b6fd Fix nasty RTable initialization bug 2022-05-22 23:52:54 -05:00
Lucas Scharenbroich
8582ecb320 Fix weird search/replace bug 2022-05-22 21:57:52 -05:00
Lucas Scharenbroich
9ac9ea623e More banking fixes 2022-05-19 23:40:45 -05:00
Lucas Scharenbroich
fc48330061 Fix bug in tile rendering and tile sheet copying 2022-05-18 22:49:14 -05:00
Lucas Scharenbroich
fd07ead8ed Get tile data to display from code field 2022-05-18 21:39:39 -05:00
Lucas Scharenbroich
755ac3fbfd Move most data storage to separate bank; fix many banking bugs 2022-05-18 21:00:06 -05:00
Lucas Scharenbroich
01e92a7b62 Update; tool is compiling while referencing new rederer pipeline 2022-05-18 00:34:25 -05:00
Lucas Scharenbroich
7f6e5d1b1f Work checkpoint 2022-04-29 12:38:04 -05:00
Lucas Scharenbroich
4d6f11a9ba Initialize the graphics screen via the toolset 2022-04-25 17:11:48 -05:00
Lucas Scharenbroich
1522922abe Complete initialization sequence. 2022-04-25 16:35:47 -05:00
Lucas Scharenbroich
e5da3991cd Start to split the tiles into high-level and low-level code 2022-04-25 16:34:54 -05:00
Lucas Scharenbroich
5745482ef6 Fix bank setting on toolset entry 2022-04-25 11:32:25 -05:00
Lucas Scharenbroich
d107365d79 Break up large source code files to help with dependency ordering 2022-04-25 11:32:06 -05:00
Lucas Scharenbroich
29d70dc567 Break up large source code files to help with dependency ordering 2022-04-25 11:30:24 -05:00
Lucas Scharenbroich
76180b6feb Basic working user tool framework 2022-04-24 14:45:07 -05:00
Lucas Scharenbroich
1f9f2aee0c Thank to Kelvin Sherlock for pointing out that the source files were not setting the register state directive 2022-04-23 15:41:25 -05:00
Lucas Scharenbroich
9692277677 Work on fixing linker / OMF errors 2022-04-23 12:48:13 -05:00
Lucas Scharenbroich
e2710ace85 Refactor to support building a tool and new demo to try and use it [not working] 2022-04-23 00:47:13 -05:00
Lucas Scharenbroich
8bb17895a9 Rough outline of streamlined sprite subsystem 
* Split the creation of the sprite stamps from adding the
  sprites themselves.  This allows for 48 stamps that can
  be pre-rendered and quickly reassigned to sprites for
  animations.

* Inlined all calls to PushDirtyTile.  This both removed
  significant overhead from calling the small function and,
  since almost all callers we checking multiple tiles, we
  were able to avoid incrementing the count each time and
  just add a single incrments at the end.

* Switched from recording each tile that a sprite intersects
  with each from to only recording the top-left tile and the
  overlap size.  This reduced overhead for larger sprites
  and removed the needs for an end-of-list marker.

* Much more aggressive caching of Sprite and Tile Store
  values in order to streamline the inner tile dispatch
  routines.

* Moving TileStore and Sprites (and other supporting
  data structures) into a separate data bank.  Needed just
  for size purposes and provide micro-optimizations by
  opening up the use of abs,y addressing modes.

* Revamped multi-sprite rendering code to avoid the need to
  copy any masks and all stacked sprites can be drawn
  via a sequence of and [addrX],y; ora (addrX),y where
  addrX is set once per tile.

* General streamlining to reduct overhead. This work was
  focused on removing as much per-tile overhead as possible.
 2022-04-20 07:43:16 -05:00
Lucas Scharenbroich
df0d0ccada Commit to a huge unrolled loop to do bitfield -> render function 2022-02-25 17:05:32 -06:00
Lucas Scharenbroich
ef620e48a3 Remove cached value; too slow to maintain on sprite remove 2022-02-25 17:03:36 -06:00
Lucas Scharenbroich
7bde48e36c Enable all dirty bits to minimize per-frame, per-sprite work 2022-02-23 08:41:02 -06:00
Lucas Scharenbroich
88fba6cd15 Add plb to prevent crash in unimplemented multisprite handler 2022-02-22 21:37:03 -06:00
Lucas Scharenbroich
19ae2b0866 Remove stray pla that prevented more than one sprite from rendering 2022-02-22 21:27:47 -06:00
Lucas Scharenbroich
2507724a49 More sprite streamlining 
* Added a TS_LAST_VBUFF cached value in the tile store
* Added a fast path for single sprite w/fast test
* Improved raster timing granularity for visual profiling

All of the code paths are generally good.  Both the _RenderSprites
and _ApplyDirtyTiles functions take a fair bit of raster time. Will
continue to try and streamline the data structures and code to
reduce overhead.`
 2022-02-22 02:35:21 -06:00
Lucas Scharenbroich
56bfdc4236 Fix sprite VBUFF offset calculation 2022-02-21 15:58:16 -06:00
Lucas Scharenbroich
e0912c8956 More tweaks and fixes 
* Adjusted tile calculation when drawing sprites
* Fixed incorred draw order in 16x16 sprite
* Added more early-out checks to save work
 2022-02-21 15:45:11 -06:00
Lucas Scharenbroich
b4025f11fc Fix stray push instruction 2022-02-21 14:31:05 -06:00
Lucas Scharenbroich
9d401a5861 Fix masking bug in sprite pre-calc 2022-02-21 14:25:55 -06:00
Lucas Scharenbroich
54474bbe5f Add more pre-computed values to the sprite structure 2022-02-21 13:33:39 -06:00
Lucas Scharenbroich
8b9415a7a5 Working through integration bugs 
* Gave active list dedicated direct page space
* Change active list bit test from ror to asl to avoid barrel shift
* Various address fixes
 2022-02-21 10:31:35 -06:00
Lucas Scharenbroich
bb83e7f7c5 Background rendering again 2022-02-18 20:43:55 -06:00
Lucas Scharenbroich
95572fbf49 Fix the mask values when enumerating through the sprite sheet 2022-02-18 16:20:07 -06:00
Lucas Scharenbroich
260b2097c2 Continue fixing code issues; strange relocation error happening 2022-02-18 13:42:37 -06:00
Lucas Scharenbroich
95058fb969 Checkpoint for sprite rewrite 
All of the sprite rendering has been deferred down to the level of
the tile drawing. Sprites are no longer drawn/erased, but instead
a sprite sheet is generated in AddSprite and referenced by the
renderer.

Because there is no longer a single off-screen buffer that holds
a copy of all the rendered sprites, the TileStore size must be
expanded to hold a reference to the sprite data address fo each
tile.  This increase in data structure size require the TileStore
to be put into its own bank and appropriate code restructuring.

The benefits to the rewrite are significant:

  1. Sprites are never drawn/erased off-screen.  They are only
     ever drawn directly to the screen or play field.
  2. The concept of "damaged" sprites is gone.  Every dirty tile
     automatically renders just to portion of a sprite that it
     intersects.

These two properties result in a substantial increase in throughput.
 2022-02-18 12:12:32 -06:00
Lucas Scharenbroich
397df074ac Sprite state rework; have run out of bank space 2022-02-07 01:19:31 -06:00
Lucas Scharenbroich
89ea425043 Start work on sprite attribute caching 2022-02-04 12:37:05 -06:00
Lucas Scharenbroich
8b852485ac Fix dirty sprite renderer when StartX and StartY are not zero 2022-02-03 23:44:46 -06:00
Lucas Scharenbroich
525f6d9c67 Add specialized erase routines for different sprite sizes 2022-02-03 08:59:10 -06:00
Lucas Scharenbroich
d3b61f8de6 Merge branch 'toolbox-conversion' 2022-02-03 08:51:49 -06:00
Lucas Scharenbroich
1b9425b620 Streamline sprite functions; untested conceptual changes 2022-02-03 08:50:11 -06:00
Lucas Scharenbroich
16a3a385a9 Update some comments 2022-02-02 17:24:27 -06:00
Lucas Scharenbroich
5f492fd557 Save 1 cycle per line in the PEA fast-path for odd-aligned blits 2022-02-02 14:30:48 -06:00
Lucas Scharenbroich
1fe02e035c Checkpoint 2022-02-02 10:21:31 -06:00
Lucas Scharenbroich
027f9746ec Checkpoint of work 2022-01-19 20:58:57 -06:00
Lucas Scharenbroich
7d76089215 Remove some dead code 2021-11-22 16:53:47 -06:00
Lucas Scharenbroich
140126afd8 Optimize odd-aligned case in the blitter 
The SEP/REP pairs that are used to move in and out
of 8-bit mode to do the single-byte pushed on the left
and right edges of the screen can also be used to clear
the necessary carry and overflow flags.
 2021-11-22 16:13:29 -06:00
Lucas Scharenbroich
5bc9cc7ff2 Add a SPRITE_HIDE flag to toggle whether a sprite is drawn or not 2021-11-22 13:26:25 -06:00
Lucas Scharenbroich
2683a91e93 Fix sprite rendering with overlapping sprites. Must erase all sprites first, then re-render 2021-11-20 21:58:09 -06:00
Lucas Scharenbroich
90267e4646 Test updating tile ID in UpdateSprite for a run sequence. 2021-11-20 20:33:27 -06:00
Lucas Scharenbroich
76801c0e5e Simplify all of the remaining tile blitters 2021-11-20 13:58:24 -06:00
Lucas Scharenbroich
cd5de05d74 Most of the horizontal flip routines are not needed since the _GetTileAddr function returns the correct tile address. Need to finish auditing other Tile blitters 2021-11-20 13:54:19 -06:00
Lucas Scharenbroich
65ce5cbbc0 Add 16x16 vertical flip routine 2021-11-20 13:26:00 -06:00
Lucas Scharenbroich
b607275089 Separate updating a sprite's position with updating it's flags 2021-11-20 12:16:03 -06:00
Lucas Scharenbroich
0cc28f9e6e Generalize _DrawSprite to handle all sizes and flip bits. 2021-11-20 12:00:21 -06:00
Lucas Scharenbroich
a7ba1e4b6b Add final tile blitter 2021-11-19 16:48:39 -06:00
Lucas Scharenbroich
fd6c686a95 Fix ordering bug that caused /usr/bin/bash0 values to overwrite the sprite 2021-11-19 16:40:21 -06:00
Lucas Scharenbroich
39303041f9 Add priority dynamic tiles + sprite blitter 2021-11-19 16:30:22 -06:00
Lucas Scharenbroich
44cbba3f23 Add in new variants for sprite and priority tiles 2021-11-19 15:07:43 -06:00
Lucas Scharenbroich
5fdb4bcf06 Fix transposed argument in macro definition; dynamic tile + sprite now working 2021-11-19 13:26:19 -06:00
Lucas Scharenbroich
b4871efe8f Streamlining tile blitter macros 2021-11-19 13:00:59 -06:00