869d80af1e
Comment cleanup and minro refactoring
2023-04-28 00:13:05 -05:00
57f57ce533
Restore shadow reg instead of overwriting
2023-04-27 23:38:26 -05:00
b449d983ee
Checkpoint for WIP scanline render fix for overlays+sprites and user-defined tiles
2023-04-26 00:41:17 -05:00
dc5742dd11
Remove dead code from codebase
2023-03-14 09:23:01 -05:00
b154bcf361
Sync up header files and add back CopyToBG1 behavior as a selectable feature
2023-03-12 15:39:41 -05:00
065603a758
Core updates for BG1 scanline support
2023-03-11 03:41:41 -06:00
7dd690ac04
Implement fix for scanline mode compensation in BG1
2023-03-10 19:00:26 -06:00
9021ee4506
WIP of BG1 scanline effects
...
A static BG1 is stable with BG0 offset values. A seam in BG1
needs to be closed up by taking into account the BG1XOrigin value
when setting the :shift_value.
Also, several routines were hard-coded for the scanline case. These
hanges need to be reverted and properly parametereized.
2023-03-10 15:50:42 -06:00
e3409f92fa
Add per-scanline offset rendering.
2023-03-09 15:29:58 -06:00
3a78398ea7
Remove dead label
2023-03-09 00:26:31 -06:00
029ab62f0c
Fix accidental double-addition of the screen origin
2023-03-08 14:15:11 -06:00
a70412211c
Simplify and specialize the even/odd patching
...
Allows the odd case to be slightly more efficient and the
code is cleaned up by not having to handle both even and odd
alignment cases at multiple points.
2023-03-08 12:49:45 -06:00
536959619f
Refine the horizontal dispatch
...
Find small optimizations to improve the average performance of the
blitter, especially in the odd-aligned case.
- Odd-aligned PEA exit is 2 cycles faster per line
- Odd-aligned JMP exit is 2 cycles faster per line
- Odd-aligned LDA exit is 6 cycles faster (eliminated long store)
- Merged setting the entry opcode and offset to convert 2 8-bit
store into a single 16-bit store (save 6 cycles per line)
- Load and save the full word for the high bytes. Cost 2 cycles
but enabled the 6 cycles saved for the LDA case.
2023-03-07 17:32:46 -06:00
6832c7f405
Update dynamic tile rendered to use fixed snippets. Add DAMAGES flag for the one render that doesn't fit the mold
2023-03-03 21:44:39 -06:00
dd9ced08f1
Transition to fixed snippets
2023-03-02 23:24:03 -06:00
c14f3c7283
Functional compiled sprites in demo-5
2023-03-01 13:18:37 -06:00
981182592e
Shadow based rendering working in demo-5
2023-02-27 15:30:56 -06:00
b8a7641307
Add in all linked list operations
2022-09-08 21:51:00 -05:00
eaedee546e
Remove dead / obsolete code
2022-09-02 20:38:10 -05:00
217a1176a9
Remove obsolete blitter routines
2022-09-02 20:37:26 -05:00
3fce46872d
Checkpoint; blitter failing
2022-08-14 07:45:58 -05:00
e378dc6e26
Checkpoint with TF4 demo framework
2022-08-11 14:14:25 -05:00
5883de1f71
Checkpoint
2022-08-01 21:46:00 -05:00
7a6c4e5ff4
Break up Ypos loop into pre/loop/post segment to optimize. Saved ~5,000 cycles/sec. When applied to the other routines will save a few thousand more cycles
2022-07-31 11:51:42 -05:00
794bc1fc09
Start adding scanline variants
2022-07-30 11:04:13 -05:00
456744027d
Inline all functions that are only called once
...
Eliminates the JSR/RTS overhead for the copy functions. Combined
with the other streamlining, we save around 60 - 70 cycles per
bank, or a total savings of around 10,000 cycles per seconds when
running at full screen.
This doesn't really change the FPS, but just gives some cycles
back to the main application logic.
2022-07-28 13:15:46 -05:00
fa731f4b2d
Streamline restore BG0; experiment with more aggressive inlining
2022-07-28 12:15:00 -05:00
0f920acd03
Eliminate redundent register loads
2022-07-28 11:57:14 -05:00
acf0276ff5
Get vertical rotation scaling going
2022-07-22 16:00:41 -05:00
18da2546bd
Add horizontal scaling to the background rotation
2022-07-22 02:01:34 -05:00
6c531619f9
Merge branch 'fixup-rotations' into kfest-2022
2022-07-21 23:35:53 -05:00
23f3626293
Fix issues preventing BG1 per-line offsets from working
2022-07-16 16:42:41 -05:00
0ab7fa9d81
Two layer demos
2022-07-16 15:22:23 -05:00
4506f808c9
Restore BG1 rotation code
2022-07-12 21:03:30 -05:00
182ebfd566
Set dirty render to the correct direct page and several small cleanups
2022-07-06 14:55:27 -05:00
a51c973865
Fix addressing bug in SCB binding
2022-06-27 00:41:02 -05:00
78ee683ba8
Stub in a lot of the remaining functions
2022-06-25 11:17:50 -05:00
4c1dba0f68
Complete Dynamic Tile renderer
2022-06-21 23:13:28 -05:00
76a9710114
Add dynamic rendering functions
2022-06-21 15:28:58 -05:00
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
553fd3c02a
Tweaking updated sprite dispatch flow
2022-06-21 07:29:18 -05:00
4ea3033b5e
Get minimal tiles and sprites rendering without a crash
2022-06-20 17:57:19 -05:00
1f9c9b3f5b
Checkpoint of final tile proc reorg for generalize new infrastructure for different engine modes
2022-06-20 15:55:09 -05:00
12b05139c2
Move to tables of dispatch tuples to set tile rendering information
2022-06-14 14:21:51 -05:00
d3da96a834
Add in the special Tile 0 render routines
2022-06-14 08:12:33 -05:00
7af4a216a0
Add modular dispatch for copy routines; add initial support for tile priority bit
2022-06-12 05:28:12 -05:00
e5938cb3c7
Change the entry points based on the engine mode
2022-06-08 23:34:15 -05:00
dec50bc6fc
Fix several bugs; biggest one in the SpriteStamp routine
2022-05-31 22:53:33 -05:00
78d7dafe14
Another checkpoint; converging on the working implementation
2022-05-31 08:43:26 -05:00
9da3616c1d
Start working to bring sprites rendering back into the pipeline
2022-05-22 23:54:47 -05:00
Lucas Scharenbroich