Commit graph

22 commits

Author SHA1 Message Date
Vlad Zahorodnii
4ce853e8e4 Prettify license headers 2020-08-07 19:57:56 +00:00
Vlad Zahorodnii
1fb9f6f13a Switch to SPDX license markers
The main advantage of SPDX license identifiers over the traditional
license headers is that it's more difficult to overlook inappropriate
licenses for kwin, for example GPL 3. We also don't have to copy a
lot of boilerplate text.

In order to create this change, I ran licensedigger -r -c from the
toplevel source directory.
2020-08-07 19:57:56 +00:00
Vlad Zagorodniy
168109f3bb [effects/blur] Clean up shader code
Summary:
* Drop abstract BlurShader class
* Delete evil "using namespace KWin"
* Fix includes
* Use smart pointers
* Turn BlurShader into a QObject
* Fix coding style
* Add missing default cases
* Use default member initialization
* Delete methods that are used only once
* Use more const
* Use QRect::{top,right,bottom,left} methods in the setBlurRect method

Reviewers: #kwin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D13110
2018-06-18 15:50:52 +03:00
Alex Nemeth
99532fb95c Fix multimonitor blur
Summary:
On wayland blur on secondary monitor would not render correctly.

BUG: 393723
Depends on D12452

Test Plan:
 - use more than one output
 - log in in a wayland session
 - open a transparent window (for example: Konsole with transparent and blur enabled profile)
 - drag the window to another screen
 - blurs the content under the window corretly

Reviewers: #kwin, graesslin, davidedmundson

Reviewed By: #kwin, davidedmundson

Subscribers: apol, zzag, davidedmundson, kwin, #kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D12678
2018-05-29 15:32:55 +02:00
Alex Nemeth
cc0325af41 Added noise blur effect
Summary:
Added the option to turn on noise behind the blurred area.
The lowest strength value disables it completely, so it is optional and is disabled by default.

Test Plan:
Edit: this new screenshot shows the updated noise generation.
Edit2: separated the screenshots so you can flick through them to clearly see the differences

{F5694024}

{F5694031}

{F5694025}

{F5694028}

Reviewers: #kwin, #vdg, fredrik

Reviewed By: #vdg, fredrik

Subscribers: davidedmundson, matheusm, romangg, ivan, zzag, ngraham, kwin, #kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D10281
2018-02-14 00:13:08 +01:00
Alex Nemeth
977a5ef012 Reverted accidental file permission changes
Summary: In D9848 the file permissions in effects/blur where accidentally changed from 644 to 755.

Test Plan: {F5674656}

Reviewers: #kwin, hein

Reviewed By: hein

Subscribers: kwin, #kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D10100
2018-01-26 03:32:33 +09:00
Alex Nemeth
0179f741bb Updated the blur method to use the more efficient dual kawase blur algorithm.
Summary:
Updated the old and outdated blur method to use the much more efficient dual kawase blur method.
Now with this we can do virtually infinite blur with very very little performance cost.
The dual kawase blur method is basically downscaling and upscaling an image, but combined with the kawase blur shader.
Comparison: https://i.imgur.com/mh6Cw61.png
Left is old, right is new.
Comparison was done with the strongest blur setting in a VM running on an Intel i7-4790 and a GTX980
We can see here that the performance is even better with this new method.

Reviewers: #plasma, #kwin, graesslin, fredrik

Reviewed By: fredrik

Subscribers: hein, dos, luebking, broulik, romangg, zzag, anthonyfieroni, mart, davidedmundson, fredrik, ngraham, plasma-devel, kwin, #kwin

Tags: #kwin

Differential Revision: https://phabricator.kde.org/D9848
2018-01-26 02:31:45 +09:00
Martin Gräßlin
8919cd5f54 [effects] Simplify supported check in blur and backgroundcontrast
GLSL is always required nowadays on GL compositor.

REVIEW: 118642
2014-06-11 14:50:01 +02:00
Martin Gräßlin
c7d986c7fe [kwin] Remove the legacy OpenGL 1 compositing backend
KWin already has a de facto OpenGL 2 dependency through QML. Combined
with the fact that the OpenGL 1 backend is basically unmaintained and
also unused, it's better to remove it for the new major release.

This change includes:
 * Removal of cmake option KWIN_BUILD_OPENGL_1_COMPOSITING
 * Removal of KWIN_HAVE_OPENGL_1 compile option and all code
   ifdef'ed with it (partially removal of if-else constructs)
 * Removal of CompositingType::OpenGL1Compositing (flags are kept
   as a core flag should get introduced)
 * Driver recommendation for OpenGL1Compositing changed to XRender
   (should be evaluated whether the drivers can provide GL2)
 * Removal of configuration option "GLLegacy"
 * Removal of fooMatrix function in kwinglutils
 * Removal of ARBBlurShader
 * Removal of legacy code path in GLVertexBuffer
 * Removal of GLShaderManager::disable
 * if-blocks with ShaderManager::instance()->isValid() removed

REVIEW: 116042
2014-03-10 08:59:11 +01:00
Fredrik Höglund
b0582571d6 kwin/blur: Save the uniform locations
Store the uniform locations in the GLSLBlurShader object instead of
looking them up each time the uniforms are set.
2013-06-11 05:12:58 +02:00
Fredrik Höglund
eff09c2b6f kwin/blur: Refactor the gaussian kernel code 2013-05-08 18:33:03 +02:00
Martin Gräßlin
99db844912 Bind ARBBlurShader to OpenGL1
The logic has already ensured that the ARBBlurShader can only be used
when using the OpenGL1 compositor, the OpenGL 2 compositor needs to use
the GLSLBlurShader.

This change moves the complete ARBBlurShader into a KWIN_HAVE_OPENGL_1
ifdef section.

As a side-effect the ::create method can now return a NULL pointer which
makes more sense then returning an ARBBlurShader in case that the
GLSLShader is not supported.

REVIEW: 106738
2012-10-25 11:34:30 +02:00
Martin Gräßlin
812c310dcf Fix unused variable warnings
SVN_SILENT
2012-05-27 16:35:04 +02:00
Philipp Knechtges
ef9aeafe0d kwin: Optimizing Blur Part II
This patch adds an optional texture cache to the blur effect such that damaged windows in
front of the blurred region dont trigger a repaint of the whole blurred region which pretty
often results in a avalanche repaint of nearly the whole screen.

REVIEW: 101977
2011-09-18 02:01:31 +02:00
Martin Gräßlin
0a7e48f7aa KWin uses kdelibs coding style. 2011-01-31 20:07:03 +01:00
Martin Gräßlin
8c4fc28e1a Blur ported to GLES.
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
Fredrik Höglund
253647ec1e Sanity check the shader limitations to protect against implementations
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
69ab6ec3b7 Use GL_CONSTANT_ALPHA instead of reducing the opacity in the fragment shader.
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
before using them.

svn path=/trunk/KDE/kdebase/workspace/; revision=1102465
2010-03-12 15:56:19 +00:00
Fredrik Höglund
67e0e91168 Check some HW limits and make sure we don't exceed them.
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.
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.
svn path=/trunk/KDE/kdebase/workspace/; revision=1099619
2010-03-05 20:42:10 +00:00