Unknown W. Brackets
944a1f380b
Disable alpha test optimization with logic ops.
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We still need to discard the pixels in the case of a logic op, like
invert. Otherwise we will invert the blended pixels too.
See #8632 .
2016-03-12 09:27:18 -08:00
Henrik Rydgard
58b07e00d7
Assorted fixes and cleanups.
2016-03-06 11:46:41 -08:00
Unknown W. Brackets
6b9b00aa16
Assume DUALSOURCE replace alpha means supported.
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We already check supports when generating this value, don't need to check
again when using it.
2016-03-05 17:18:04 -08:00
Unknown W. Brackets
8b51bc5b0b
Fix debugging and depth packing with old depth.
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Which means, OpenGL in general right now.
2016-02-07 22:42:47 -08:00
Unknown W. Brackets
f1c06d25ea
Switch to old-style depth in OpenGL.
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Some devices really aren't handling the new method well. There seem to be
accuracy problems when specifying the values to OpenGL.
2016-02-06 20:21:14 -08:00
Unknown W. Brackets
87b75235e7
Improve depth accuracy a bit in 16-bit slice mode.
2016-02-06 20:02:18 -08:00
Victor Xie
dc32805256
Made commit 0920f6c a little more robust.
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Eliminated division-by-zero when depth range is zero.
2016-02-01 13:17:15 +08:00
Unknown W. Brackets
79750ed1ad
Add a config setting to control depth quality.
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For those who want 1x PSP like behavior.
2016-01-20 22:11:00 -08:00
Henrik Rydgård
4c8384aa09
Merge pull request #8461 from unknownbrackets/gpu-depth
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Swap depth range to use minz/maxz
2016-01-20 10:19:51 +01:00
Unknown W. Brackets
02bf70a2d0
Where possible, rewrite 5551 stencil ops too.
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We can in most cases fix INVERT, and also INCR so INVERT works when we
can't fix it.
Fixes #8422 .
2016-01-19 23:17:58 -08:00
Unknown W. Brackets
e00c9940e8
Correct pixel depth rounding.
2016-01-19 20:19:50 -08:00
Unknown W. Brackets
5de7d2cf8f
Oops, correctly center depth.
2016-01-19 07:51:56 -08:00
Unknown W. Brackets
6ef97f72d2
gedbg: Show scaled depth values properly.
2016-01-19 07:23:06 -08:00
Unknown W. Brackets
b80c02c272
Simulate depth clamping.
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We'll allow extra space in both directions. It's not exactly right, but
it's a fast approximation.
2016-01-19 07:12:58 -08:00
Unknown W. Brackets
0920f6c6eb
Use minz/maxz as the depth range.
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This allows values that fall outside the viewport, but still within the
depth range, to be drawn.
2016-01-19 07:12:57 -08:00
Unknown W. Brackets
d1b3768e49
Use a common func everywhere for float depth vals.
2016-01-18 19:29:45 -08:00
Unknown W. Brackets
0828721bc2
Simplify depth calculation a bit.
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This way we keep the original range better, so we should lose less
precision.
2016-01-17 18:30:58 -08:00
Unknown W. Brackets
3aead9584b
Oops, fix typo causing clamping to clamp wrong.
2016-01-03 19:59:59 -08:00
Unknown W. Brackets
529abd7db4
Correct clamped depth range from [0, 65535].
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This changes a few things:
* All backends clamp the depth range and keep it positive.
* The depth rounding uniform is now properly dirtied.
* Projection is updated to translate and scale appropriately.
* Depth rounding is halved on OpenGL to account for [-1, 1] range.
Fixes Phantasy Star Portable 2 without the need for a game-specific hack.
2016-01-03 12:29:43 -08:00
Unknown W. Brackets
fd2e302a66
When possible, replace 5551 stencil with 0xFF.
2015-12-31 17:16:41 -08:00
Unknown W. Brackets
e1599821ea
Split out the 5551 logic to be clearer.
2015-12-31 17:12:12 -08:00
Unknown W. Brackets
64a34a6d92
Handle masking correctly for 5551 stencil rewrite.
2015-12-31 17:01:08 -08:00
Unknown W. Brackets
c31a8f860b
Adjust stencil ops for 5551 and 565 buffers.
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This attempts to better approximate the operations that actually happen,
where possible. Expected to help #5278 .
2015-12-31 17:01:03 -08:00
Unknown W. Brackets
c22953a4b9
Treat invalid blend factors as fixed consistently.
2015-11-19 06:48:06 -08:00
Unknown W. Brackets
eb5072bba5
Warning fixes.
2015-11-18 21:56:05 -08:00
