Lucas Scharenbroich
b154bcf361
Sync up header files and add back CopyToBG1 behavior as a selectable feature
2023-03-12 15:39:41 -05:00
Lucas Scharenbroich
065603a758
Core updates for BG1 scanline support
2023-03-11 03:41:41 -06:00
Lucas Scharenbroich
d31bd30649
Implement full per-scanline offset support for BG1
2023-03-11 03:41:12 -06:00
Lucas Scharenbroich
7dd690ac04
Implement fix for scanline mode compensation in BG1
2023-03-10 19:00:26 -06:00
Lucas Scharenbroich
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
Lucas Scharenbroich
e3409f92fa
Add per-scanline offset rendering.
2023-03-09 15:29:58 -06:00
Lucas Scharenbroich
3a78398ea7
Remove dead label
2023-03-09 00:26:31 -06:00
Lucas Scharenbroich
39163ea786
Expose the ability to select which rendering order to use for sprites
2023-03-09 00:23:12 -06:00
Lucas Scharenbroich
c533d846d7
Be more cautious when manipulaitng the sorted list
2023-03-08 20:09:57 -06:00
Lucas Scharenbroich
6c5e133b17
Fix some linked-list manipulations
2023-03-08 16:29:12 -06:00
Lucas Scharenbroich
029ab62f0c
Fix accidental double-addition of the screen origin
2023-03-08 14:15:11 -06:00
Lucas Scharenbroich
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
Lucas Scharenbroich
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
Lucas Scharenbroich
5697737a93
Add workable overlay support to the scanline renderer
2023-03-06 14:39:23 -06:00
Lucas Scharenbroich
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
Lucas Scharenbroich
dd9ced08f1
Transition to fixed snippets
2023-03-02 23:24:03 -06:00
Lucas Scharenbroich
c14f3c7283
Functional compiled sprites in demo-5
2023-03-01 13:18:37 -06:00
Lucas Scharenbroich
e2e30dfcf4
Checkpoint for initial framing for compiled sprite support
2023-02-28 11:17:43 -06:00
Lucas Scharenbroich
981182592e
Shadow based rendering working in demo-5
2023-02-27 15:30:56 -06:00
Lucas Scharenbroich
31ca627c14
Make sprite pre-calc rotines more specific and fix x,y argument ordering in AddSprite
2023-01-08 01:30:51 -06:00
Lucas Scharenbroich
4b50fa8318
checkpoint
2023-01-02 11:04:26 -06:00
Lucas Scharenbroich
b8a7641307
Add in all linked list operations
2022-09-08 21:51:00 -05:00
Lucas Scharenbroich
eaedee546e
Remove dead / obsolete code
2022-09-02 20:38:10 -05:00
Lucas Scharenbroich
217a1176a9
Remove obsolete blitter routines
2022-09-02 20:37:26 -05:00
Lucas Scharenbroich
bd1de7f83c
Checkpoint
2022-08-16 19:47:19 -05:00
Lucas Scharenbroich
3fce46872d
Checkpoint; blitter failing
2022-08-14 07:45:58 -05:00
Lucas Scharenbroich
e378dc6e26
Checkpoint with TF4 demo framework
2022-08-11 14:14:25 -05:00
Lucas Scharenbroich
093bc738f0
Merge branch 'master' into scanline-offsets
2022-08-01 22:21:52 -05:00
Lucas Scharenbroich
97fa45589b
Allow GTEStartUp caller to specify whether tool is loaded as a system or user tool
2022-08-01 22:00:54 -05:00
Lucas Scharenbroich
5883de1f71
Checkpoint
2022-08-01 21:46:00 -05:00
Lucas Scharenbroich
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
Lucas Scharenbroich
794bc1fc09
Start adding scanline variants
2022-07-30 11:04:13 -05:00
Lucas Scharenbroich
7c32c89493
Merge branch 'streamline-apply-bg0'
2022-07-28 13:27:47 -05:00
Lucas Scharenbroich
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
Lucas Scharenbroich
babd4d06b4
Merge pull request #15 from dmalec/platform-neutral-paths
...
Switched back slash to forward slash in assembly so Merlin32 works on OSX as well as Windows
2022-07-28 12:20:40 -05:00
Lucas Scharenbroich
fa731f4b2d
Streamline restore BG0; experiment with more aggressive inlining
2022-07-28 12:15:00 -05:00
Lucas Scharenbroich
0f920acd03
Eliminate redundent register loads
2022-07-28 11:57:14 -05:00
Lucas Scharenbroich
f5a27362a7
Remove ommented out code
2022-07-28 11:56:05 -05:00
Lucas Scharenbroich
e25b5b4d7f
Correctly initialize the screen size
2022-07-27 23:42:26 -05:00
Dan Malec
9849c6bbb1
Switched back slash to forward slash in assembly so Merlin32 works on OSX as well as Windows
2022-07-27 17:56:27 -04:00
Lucas Scharenbroich
5a0e0e447e
Change GTESetScreenMode to use bytes for the width
2022-07-26 00:21:22 -05:00
Lucas Scharenbroich
68b8ca5856
Remove a CLC from the inner dispatch. Saves 2 cycles per block per sprite at the cost of 2 cycles per sprite
2022-07-26 00:11:47 -05:00
Lucas Scharenbroich
d332783c85
Add additional parameter to AddSprite to avoid needing to call UpdateSprite immediately
2022-07-26 00:10:53 -05:00
Lucas Scharenbroich
acf0276ff5
Get vertical rotation scaling going
2022-07-22 16:00:41 -05:00
Lucas Scharenbroich
18da2546bd
Add horizontal scaling to the background rotation
2022-07-22 02:01:34 -05:00
Lucas Scharenbroich
6c531619f9
Merge branch 'fixup-rotations' into kfest-2022
2022-07-21 23:35:53 -05:00
Lucas Scharenbroich
3063ab88f9
Fix sprite stamp rendering for 8x16 and 16x8 sprites
2022-07-21 22:51:25 -05:00
Lucas Scharenbroich
23f3626293
Fix issues preventing BG1 per-line offsets from working
2022-07-16 16:42:41 -05:00
Lucas Scharenbroich
0ab7fa9d81
Two layer demos
2022-07-16 15:22:23 -05:00
Lucas Scharenbroich
4506f808c9
Restore BG1 rotation code
2022-07-12 21:03:30 -05:00
