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Author SHA1 Message Date
David Guillen Fandos
4ca45efcc7 Implement Mosaic effect (for all modes and types). 
The effect is not pixel perfect, and the code is slower than non-mosaic
code. However this is intentional to ensure rendering is not very slow.
This improves most games that use this effect, and it's definitely
better than not having it.
 2023-08-23 21:18:09 +02:00
David Guillen Fandos
1526af3b68 Implement mode 4 color effects 
Modes 3/5 are still not supported and use regular fullcolor path.
Fixes many games, particularly menus and initial sequences for many
other games.
 2023-08-18 03:30:14 +02:00
David Guillen Fandos
38390d4c55 Fix backdrop flag filling 
Fixes a few games (specially transitions that use backdrop effects)
 2023-08-17 22:21:37 +02:00
David Guillen Fandos
2c0c8c85d7 Some cosmetic changes 2023-08-06 20:21:50 +02:00
David Guillen Fandos
7bcd7939fb Implement row/half-row skip 
This helps a lot with backgrounds that are mostly transparent.
 2023-08-06 14:19:27 +02:00
David Guillen Fandos
01471a4295 Improve object blitting too 2023-08-06 13:21:47 +02:00
David Guillen Fandos
88fdbebd53 More perf improvements 2023-08-05 16:02:57 +02:00
David Guillen Fandos
d6f5d72a97 Minor perf improvements 2023-08-05 00:39:44 +02:00
David Guillen Fandos
195e82b615 Minor simplification 2023-08-04 23:17:33 +02:00
David Guillen Fandos
d1b4f69e32 Some more perf tweaks! 2023-08-04 01:59:06 +02:00
David Guillen Fandos
3858694aad More perf tweaks to sprite rendering 2023-08-04 01:30:53 +02:00
David Guillen Fandos
4822923b90 Improve affine text renderer 2023-08-04 00:26:46 +02:00
David Guillen Fandos
71df26db98 Optimize bitmap rendering a bit further 2023-08-03 00:32:32 +02:00
David Guillen Fandos
b020a646e7 Optimize regular object blitting too 2023-08-01 20:47:12 +02:00
David Guillen Fandos
a42ebbbedc Improve text blitting performance 2023-08-01 20:27:08 +02:00
David Guillen Fandos
cde8a90ff8 Move pixel blitting from single mem access to byte-level 2023-08-01 01:20:29 +02:00
David Guillen Fandos
b4f394459d Rewrite pixel blit functions for speed 
Expand some conditions to make it clear what values are required in each
path.
 2023-08-01 00:29:49 +02:00
David Guillen Fandos
a5c82bccd0 Update the winobj render logic 2023-07-31 22:27:12 +02:00
David Guillen Fandos
e6cde3e981 Further breakdown function modes for speed 2023-07-31 20:17:36 +02:00
David Guillen Fandos
8622c43d48 Implement sprite limit 
Accounts for number of cycles per scanline and stops pushing objects
that go over the limit. Reversed processing from high to low priority
and drawing from low to high.
 2023-07-31 20:14:27 +02:00
David Guillen Fandos
54484ff131 Refactor sprite rendering 2023-07-31 00:35:11 +02:00
David Guillen Fandos
361f106393 Clean up a bit more and refactor optimizations. 
This should also cover the affine case which was left out.
 2023-07-30 23:41:46 +02:00
David Guillen Fandos
82cb11990f Improve blending code when no st-objs are visible 2023-07-30 21:26:19 +02:00
David Guillen Fandos
4349668315 Fix ST-OBJ blending 
This uses an extra bit and does proper color stacking when needed to
ensure we render things correctly when ST-objects are visible.
Fixes most games that had coloring issues finally :)
 2023-07-30 18:01:47 +02:00
David Guillen Fandos
8a50e2bcf1 More clean up and code rearrange 2023-07-30 00:51:31 +02:00
David Guillen Fandos
b0bbe36c08 Improve windowing render functions. 2023-07-29 23:19:12 +02:00
David Guillen Fandos
fbfae2e6f4 Minor cleanup 2023-07-29 22:38:16 +02:00
David Guillen Fandos
a5429384fe Add missing register 2023-07-29 20:51:47 +02:00
David Guillen Fandos
b026ea626a Disable optimization when there are some ST objects on the line 2023-07-29 17:20:35 +02:00
David Guillen Fandos
fef2b89e87 Backport VRAM mirroring issues for OBJ rendering 
When using a big sprite with a tile at the end of the 32KB VRAM block it
might end up reading past the 32KB block. This is not an "issue" since
the VRAM wraps around within the 32KB block.
 2023-07-29 16:53:50 +02:00
David Guillen Fandos
c6b2f315c5 Fix tile offset mask for 8bpp/2D mode 2023-07-29 16:35:08 +02:00
David Guillen Fandos
75a302d1d2 Merge video0/affine fixes from master 2023-07-29 15:47:47 +02:00
David Guillen Fandos
9a48e3a231 Update copyright and remove unused stuff 2023-07-29 01:08:55 +02:00
David Guillen Fandos
c68b734bfb Some more cleanup 2023-07-29 01:06:51 +02:00
David Guillen Fandos
ef7e0bbe37 Remove last macros, fix sprite alpha blending 
Fixes many games, might break one or two in some weird cases.
Needs some cleanup, and bitmap support for color effects
 2023-07-29 00:51:07 +02:00
David Guillen Fandos
1ee50ada80 Reimplement sprite copy-mode for obj-based windowing 
Seems it fixes a couple of visual issues in games too.
Might need to re-check that we do not overdraw too much to avoid
performance issues.
 2023-07-28 19:35:33 +02:00
David Guillen Fandos
85beb230f1 Partial object rendering rewrite 
A couple of modes still missing but mostly done. Pixel-exact
compatibility for this change too.
 2023-07-27 23:51:24 +02:00
David Guillen Fandos
d6a02ff1df Reimplement blending routines 2023-07-25 23:37:02 +02:00
David Guillen Fandos
543ba652ba Rewrite layer rendering logic for tiled modes. 
Bitmap mode does not really support this yet, therefore color effects
are not being rendered.
 2023-07-25 23:36:56 +02:00
David Guillen Fandos
7b3c092584 Simplify color modes (there's only three really). 2023-07-21 21:11:08 +02:00
David Guillen Fandos
99a9b1d9b7 Unused macros cleanup 2023-07-21 19:56:01 +02:00
David Guillen Fandos
c5108b78eb Rewrite bitmap rendering routines 2023-07-21 19:15:05 +02:00
David Guillen Fandos
11f56eb1d1 Implement text background affine rendering 2023-07-20 23:28:25 +02:00
David Guillen Fandos
c2964e386a Replace all other tiled renderers. 
Alhpa blending and other color effects are merged into a single function
 2023-07-19 20:30:52 +02:00
David Guillen Fandos
dc4c312ca7 Rewrite tile rendering base functions 2023-07-18 23:04:56 +02:00
David Guillen Fandos
b88f0c0135 Rewrite window code without macros 2023-07-14 22:39:47 +02:00
David Guillen Fandos
97435283d2 Branch video to be a CXX source file. 
Purposely disable all CXX linking to ensure the binary remains the same
 2023-07-14 20:16:37 +02:00
David Guillen Fandos
1d972ec7ff Improve GBC sound by fixing its deferred rendering 
This fixes many games that use the PSG, particuarly the noise generator.
It is very noticeable in explosion/collision sounds with Sonic and Kirby
games, where the noise channel is rapidly tweaked.
 2023-07-14 00:37:33 +02:00
David Guillen Fandos
2391496432 Some video cleanups for better readability 2023-07-11 23:11:27 +02:00
David Guillen Fandos
f5490a1996 Reduce video tracking vars 
No need for full int, byte will do.
 2023-07-09 23:05:49 +02:00