Unknown W. Brackets
99458d7797
Avoid forcing nearest/disabling linear if possible.
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If we know that the test is trivially true, we don't need to worry about
the test. May help #4405 .
2014-05-15 22:38:44 -07:00
Unknown W. Brackets
f660c04983
Optimize double alpha blending for 1/0 textures.
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If the blend is 2*a / 1-a, and the alpha is either 1 or 0, we can still
use color doubling instead. Fixes #3379 (Persona 2.)
2014-05-11 14:17:19 -07:00
Henrik Rydgard
cf4887ecdd
Update native to detect the EXT and NV extensions separately. Only look at the NV one.
2014-04-18 19:30:10 +02:00
Henrik Rydgård
45246ad9d3
Merge pull request #5891 from raven02/kill-alpha
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Remove 'DisableAlphaTest' option
2014-04-15 22:00:18 +02:00
raven02
d2ce635bbf
Remove option
2014-04-16 03:57:57 +08:00
raven02
cd024e88e8
Add #extension GL_EXT_shader_framebuffer_fetch : require
2014-04-14 19:55:34 +08:00
raven02
a9d7be1eab
Should be id0
2014-04-13 16:13:59 +08:00
raven02
e358a6dcbe
Handle ABSDIFF blending mode using GL_EXT_shader_framebuffer_fetch
2014-04-13 16:01:55 +08:00
Unknown W. Brackets
1209bc7ba4
Optimize ComputeFragmentShaderID() a bit.
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I've seen it decently high on some profiles (1-2%). This cuts it down by
12.5% when used in a tight loop. The temporary was 8%, the ifs were the
other 4.5%.
2014-03-29 10:21:04 -07:00
Unknown W. Brackets
2b7d2fdc4b
Optimize > and != 0 alpha tests.
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There's no need to do rounding in this case. These are very common.
Also, if the test was !=, convert it to >, which may work better on
PowerVR.
2014-03-29 10:16:06 -07:00
Henrik Rydgard
f99925261d
Merge branch 'raven02-patch-42'
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Conflicts:
GPU/GLES/FragmentShaderGenerator.cpp
2014-03-29 17:26:33 +01:00
raven02
664efe6812
Return false when alpha blending disabled
2014-03-29 22:04:59 +08:00
raven02
2944856c42
FS : Add missing gstate.isTextureMapEnabled()
2014-03-29 21:03:28 +08:00
Henrik Rydgard
37e9fc59b3
2x alpha: Safer change than the last attempt. Still fixes P2. I think this can be simplified, anyway.
2014-03-29 12:10:44 +01:00
Henrik Rydgard
27767fa85c
Revert "Rethink 2x src alpha->color doubling. Fixes #3379."
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This reverts commit 47efded29f
2014-03-29 12:01:47 +01:00
Henrik Rydgard
47efded29f
Rethink 2x src alpha->color doubling. Fixes #3379 .
2014-03-29 11:40:17 +01:00
Unknown W. Brackets
69c2500dc6
Make sure vai->flags are set while hashing.
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Since we decode the verts in this case we have a fresh flag. Might
be #5718 ?
2014-03-25 08:19:38 -07:00
Henrik Rydgard
dc07d3410a
More checks for alpha test elimination
2014-03-24 17:33:20 +01:00
Henrik Rydgard
f33ddad364
Eliminate further alpha tests
2014-03-24 12:41:33 +01:00
Henrik Rydgard
b174996c1c
Add a conservative check that prevents alpha testing in a few cases.
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This will become really powerful if we add some code to the vertex decoder
to check for non-full alpha in the vertices, and set gstate_c.vertexFullAlpha if none
is found (probably want to do the reverse, set it to true and clear if any non-255 alpha is found).
Alpha testing is a performance killer on many mobile GPUs so big efforts to
avoid it can be worth it.
2014-03-23 16:32:38 +01:00
Henrik Rydgard
20d480a374
Minor GPU code cleanups
2014-03-23 16:32:38 +01:00
Unknown W. Brackets
b9f4cc4481
Double colors only when texturing, and after test.
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Per tests.
2014-01-12 11:45:29 -08:00
Henrik Rydgård
c277fe3019
Don't declare fragColor0 unless we will use it. See #4877
2013-12-29 11:26:56 +01:00
raven02
9676f6943f
Restore Alpha/ColorDoubling to do before color test
2013-12-25 15:39:37 +08:00
raven02
f97aacce45
Reformat stencilToAlpha a bit
2013-12-24 22:36:57 +08:00
Henrik Rydgard
832c933cb8
Some shader fixes
2013-12-17 23:38:58 +01:00
Henrik Rydgard
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
Henrik Rydgard
a9a15d5196
Don't use dual source when stencil disabled
2013-12-16 23:41:42 +01:00
Henrik Rydgard
0d2ec01e83
Switch CanReplaceAlphaWithStencil response to an enum
2013-12-16 23:24:32 +01:00
Henrik Rydgard
a8a48013f6
Don't use gl_FragColor when deprecated
2013-12-16 23:18:13 +01:00
Henrik Rydgard
40a0705b50
Typo fix checking the alpha func for src factors
2013-12-16 23:13:33 +01:00
Henrik Rydgård
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
Unknown W. Brackets
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
Henrik Rydgard
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
Henrik Rydgard
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
raven02
affc7f44a6
Add extra GE_TEXFUNC_UNKNOWN1/2/3 which handle same as GE_TEXFUNC_ADD
2013-12-14 06:47:20 +08:00
Henrik Rydgard
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
raven02
59d3b92e71
STENCIL_VALUE_UNKNOWN for DECR/INCR/INVERT
2013-12-08 22:19:13 +08:00
raven02
ed07a7f411
zero alpha if stencil op consistently says to zero for format 5551 as well
2013-12-08 22:05:31 +08:00
Henrik Rydgard
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
Unknown W. Brackets
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
Henrik Rydgard
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
Henrik Rydgård
13cdbd5284
Mask away alpha when the stencil operation is KEEP
2013-12-06 11:15:13 +01:00
Henrik Rydgard
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
Henrik Rydgard
a6150db8d5
Disable frag shader stenciltoalpha in clearmode.
2013-12-03 11:10:27 +01:00
Unknown W. Brackets
4418aacbaf
When writing stencil to alpha, consider fb format.
2013-12-03 00:15:08 -08:00
Henrik Rydgard
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
Henrik Rydgard
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
Henrik Rydgård
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
Henrik Rydgård
0471a8c886
Only set fogdepth to highp on PowerVR. May fix #4333
2013-10-28 15:38:25 +01:00
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