b9f4cc4481
Double colors only when texturing, and after test.
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Per tests.
2014-01-12 11:45:29 -08:00
c277fe3019
Don't declare fragColor0 unless we will use it. See #4877
2013-12-29 11:26:56 +01:00
9676f6943f
Restore Alpha/ColorDoubling to do before color test
2013-12-25 15:39:37 +08:00
f97aacce45
Reformat stencilToAlpha a bit
2013-12-24 22:36:57 +08:00
832c933cb8
Some shader fixes
2013-12-17 23:38:58 +01:00
f8312716f3
Only use dual source when actually needed.
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Does generate a few more shaders but hopefully isn't a problem, should get rid of most of the slowdown in most games.
2013-12-16 23:44:28 +01:00
a9a15d5196
Don't use dual source when stencil disabled
2013-12-16 23:41:42 +01:00
0d2ec01e83
Switch CanReplaceAlphaWithStencil response to an enum
2013-12-16 23:24:32 +01:00
a8a48013f6
Don't use gl_FragColor when deprecated
2013-12-16 23:18:13 +01:00
40a0705b50
Typo fix checking the alpha func for src factors
2013-12-16 23:13:33 +01:00
b6f8038a51
Fragment shader: Remove superfluous precision specifiers.
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Also make sure to strip lowp/mediump/highp on desktop even for GL3.0-3.3.
2013-12-16 11:46:59 +01:00
0043950770
Use #version 130 for OpenGL 3.0+ to support out.
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Otherwise it just gives errors on cards that support dual source blending.
2013-12-15 08:32:22 -08:00
214cc01976
Fix bugs in stencil2alpha, fix bugs in glsl 3 support, enable dual source blending where available
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The stencil2alpha bug fixes fix some glows in Wipeout, dual source fixes the rest.
2013-12-15 12:49:13 +01:00
3cde4921ae
Have the shader generators generate modern GLSL if available.
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This opens up to use other modern features like dual source alpha later.
2013-12-15 11:23:27 +01:00
affc7f44a6
Add extra GE_TEXFUNC_UNKNOWN1/2/3 which handle same as GE_TEXFUNC_ADD
2013-12-14 06:47:20 +08:00
e2080f6c65
Revert "STENCIL_VALUE_UNKNOWN for DECR/INCR/INVERT"
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This reverts commit 59d3b92e71ed07a7f411
2013-12-08 17:48:22 +01:00
59d3b92e71
STENCIL_VALUE_UNKNOWN for DECR/INCR/INVERT
2013-12-08 22:19:13 +08:00
ed07a7f411
zero alpha if stencil op consistently says to zero for format 5551 as well
2013-12-08 22:05:31 +08:00
7b4759384f
Only zero alpha if stencil op consistently says to zero.
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Otherwise we may be better off keeping the alpha.
2013-12-08 13:04:54 +01:00
054501c100
Replace alpha when blend mode allows it.
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Some games are using fixed/fixed blending modes which work in our favor.
2013-12-07 02:54:33 -08:00
c738364f67
Make sure to disable scissor when doing the initial clear of a new FBO.
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Minor cleanups.
2013-12-06 23:08:37 +01:00
13cdbd5284
Mask away alpha when the stencil operation is KEEP
2013-12-06 11:15:13 +01:00
41209eb936
Stencil-to-alpha fragment tweak: Set alpha to 0 if we can't deduce the stencil value.
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This fixes the weird glowing shadows in Wipeout.
2013-12-04 19:55:09 +01:00
a6150db8d5
Disable frag shader stenciltoalpha in clearmode.
2013-12-03 11:10:27 +01:00
4418aacbaf
When writing stencil to alpha, consider fb format.
2013-12-03 00:15:08 -08:00
44beebf6b0
Realized it's ok to combine the stencil-to-alpha with alpha testing as it's done within the shader, before we replace alpha.
2013-12-03 00:51:25 +01:00
39b632b279
Copy the stencil value in REPLACE mode to fragment alpha (but only when it's safe)
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This is cheap but incomplete.
To do it more "right", we need multipass when blending or alpha test is enabled, ugh. That's for later.
Anyway, this improves the glow situation in Wipeout somewhat. Still lots of stuff that glows that shouldn't, but a little less overwhelmingly bright.
2013-12-03 00:13:21 +01:00
4352d720d8
Let's not use #define in GLSL ES shaders.
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There are rumours that Vivante chips hate these.
2013-10-29 11:37:16 +01:00
0471a8c886
Only set fogdepth to highp on PowerVR. May fix #4333
2013-10-28 15:38:25 +01:00
2c56ccef18
Make sure frag shader ID matches generated code.
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Before, we would use an id with alphatest on, but not actually compile in
alphatest. Or, we would use a shader with alphatest, when we actually
could compile it out.
2013-10-26 02:19:02 -07:00
5d47aabb08
Seems we need high precision for fog on PowerVR. #4287 might be fixed by this.
2013-10-22 19:56:06 +02:00
2292531dd6
Small optimization for Disable Alpha Test - makes sure we don't generate the same shader twice.
2013-10-22 15:15:13 +02:00
bf59f3db73
Add ugly hack setting for PowerVR to disable alpha test
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Causes glitches but the speedup is truly massive in some games so I relent :/
Please do not report graphics bugs when this is enabled...
Future: Maybe remove this setting except on PowerVR?
2013-10-22 13:00:19 +02:00
80702109f5
Move gpu vendor detection to native with the rest of the gl init.
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Also disable vertical layout for mainscreen entirely.
2013-10-16 00:48:44 +02:00
f645988b8f
More precision annotations in shader generators, other microoptimizations
2013-10-07 20:15:00 +02:00
99a7ff0973
Fix shader generation issue for desktop PowerVR chips - are there still such things???
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Seen in our automatic reports.
2013-09-29 11:17:12 +02:00
8564d146c8
Rename roundTo255th to roundTo255thf
2013-09-28 00:06:18 +08:00
50edfb75d0
Add reporting for color test function
2013-09-10 09:20:50 +08:00
655a7b4973
Check for a stencil test when ignoring alphatest.
2013-08-29 22:14:51 -07:00
766731db8e
Add back the default case to the triviallytrue functions.
2013-08-29 20:39:23 +02:00
65d836c5dd
Fix FF2 issue #2857
2013-08-29 22:50:31 +08:00
0b98f1f71b
Should keep default case
2013-08-28 15:10:40 +08:00
0f55a6e042
Add GE_COMP_NEVER for alpha/color test to return false.
2013-08-28 14:33:15 +08:00
dcc63fd716
PowerVR: work around what appears to be a driver bug with equality test + discard, but not completely sure that discard isn't just broken.
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If this change breaks something, it was probably already broken, and it's PVR-only.
2013-08-28 00:12:49 +02:00
dd667156f5
Oops
2013-08-27 22:14:13 +02:00
711d3ff52c
Speedup a few 2D games on mobile by eliminating the alpha test in some conditions
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That is, if there's no depth testing/writing, and the alpha equation will produce the same result as the alpha test (when the alpha test is >= 0 or != 0 and the blend func is safe), we turn off the alpha test.
2013-08-27 21:48:03 +02:00
6360fcb0ae
Add some stats to get some idea of much alpha tested drawing we do.
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Turns out it's one hell of a lot and we really should fix this by
checking both vertices and textures to deduce when we can just skip
alpha testing safely, probably quite often.
I care about this because alpha testing drawing is very expensive
on some mobile chips.
2013-08-27 21:01:17 +02:00
edb6e5a54c
Fix fallthough bugs in isAlphaTestTriviallyTrue
2013-08-24 11:56:39 +02:00
416f0c56e8
Experiment: Use glBlendFuncSeparate to not change dest alpha when blending.
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Fixes Persona blending issues.
2013-08-22 19:14:04 +02:00
9931e5c5cc
Fragment : Set doTextureAlpha = gstate.isTextureAlphaUsed();
2013-08-20 21:32:07 +08:00
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