Martin Gräßlin
a728823fbe
Fix passing matrixes to the shaders
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QMatrix4x4 accepts data in row-major order, but returns them in
column-major order, which is not documented and because of that
I expected them to be in row-major order.
This commit fixes it and rewrites the shaders to apply the matrix
multiplications in the right order.
REVIEW: 100759
2011-03-06 09:13:31 +01:00
Martin Gräßlin
0827c2903b
Use GLPlatform to decide whether shaders are supported
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Dropping the static methods from GLShader and use supports()
where it was used before.
2011-02-19 11:08:43 +01:00
Martin Gräßlin
0a7e48f7aa
KWin uses kdelibs coding style.
2011-01-31 20:07:03 +01:00
Martin Gräßlin
8c4fc28e1a
Blur ported to GLES.
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It now uses a GLShader for GLSL shaders and pushes it using the
ShaderManager.
It does not work with the nouveau driver plus GLES, but it works
with fglrx + desktop GL 2.x, so I assume it is a driver problem here.
2011-01-30 14:12:06 +01:00
Martin Gräßlin
6270b502ba
ARB Shader fallback to Lanczos filter.
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This allows using Lanczos filter also on systems not supporting GLSL.
See http://svn.reviewboard.kde.org/r/5777/
svn path=/trunk/KDE/kdebase/workspace/; revision=1195273
2010-11-10 18:25:40 +00:00
Fredrik Höglund
08f51821b7
Don't set gl_TextCoord[0] in the vertex shader when the fragment
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shader doesn't use it.
svn path=/trunk/KDE/kdebase/workspace/; revision=1178357
2010-09-22 20:13:01 +00:00
Fredrik Höglund
62b9c59da6
Rewrite the fragment program to avoid exceeding the texture indirection
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limit on some GPU's.
Thanks to Mikael Gerdin, Christoph Feck and Iori Yagami for testing.
svn path=/trunk/KDE/kdebase/workspace/; revision=1138004
2010-06-14 22:13:48 +00:00
Fredrik Höglund
253647ec1e
Sanity check the shader limitations to protect against implementations
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returning bogus values.
FIXED-IN: 4.5
BUG: 241449
svn path=/trunk/KDE/kdebase/workspace/; revision=1137677
2010-06-14 00:18:04 +00:00
Fredrik Höglund
b13174e785
Tweak the code in the fragment shader to get the Mesa GLSL compiler to emit
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MAD's instead of MUL + ADD.
svn path=/trunk/KDE/kdebase/workspace/; revision=1136438
2010-06-09 20:59:24 +00:00
Fredrik Höglund
69ab6ec3b7
Use GL_CONSTANT_ALPHA instead of reducing the opacity in the fragment shader.
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This makes the blending work correctly when the alpha bits are zero,
which is apparently the case with NVidia.
svn path=/trunk/KDE/kdebase/workspace/; revision=1102471
2010-03-12 16:10:57 +00:00
Fredrik Höglund
c82351488e
Make sure that both the render target and the shader are valid
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before using them.
svn path=/trunk/KDE/kdebase/workspace/; revision=1102465
2010-03-12 15:56:19 +00:00
Fredrik Höglund
728e3ed6f6
Use the texture matrix to do the screen to texture coordinate transformations.
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svn path=/trunk/KDE/kdebase/workspace/; revision=1101728
2010-03-10 18:31:59 +00:00
Fredrik Höglund
67e0e91168
Check some HW limits and make sure we don't exceed them.
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svn path=/trunk/KDE/kdebase/workspace/; revision=1101724
2010-03-10 18:16:18 +00:00
Fredrik Höglund
3de8c53f21
Refactor the blur shader code a bit, and add a GLSL version.
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svn path=/trunk/KDE/kdebase/workspace/; revision=1100848
2010-03-08 20:45:58 +00:00
Fredrik Höglund
53391ba944
Initial commit of the blur effect rewrite.
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svn path=/trunk/KDE/kdebase/workspace/; revision=1099619
2010-03-05 20:42:10 +00:00
