The ShaderBinder class can be used for the case that a block of code
should be executed with a given Shader being bound. This is useful for
all the cases where there is a if-block for OpenGL2 execution with a
Shader being pushed in the first line to the ShaderManager and popped in
the last line of the block. With the helper this can be simplified to:
ShaderBinder binder(myCustomShader);
or
ShaderBinder binder(ShaderManager::GenericShader);
The ctor of ShaderBinder pushes the given Shader to the stack and once
the helper goes out of scope it will be popped again from the stack.
In addition the helper can take care of OpenGL 1 compositing, that is it
just does nothing. So it can also be used where there is a shared OpenGL1
and OpenGL2 code path where the Shader should only be pushed in OpenGL2.
This basically removes all the checks for the compositing type before
pushing/popping a Shader to the stack.
REVIEW: 106521
The main usage of ShaderManager::isValid was to have OpenGL2 specific
code pathes. Now we have an actual OpenGL2Compositing type and we know
that the ShaderManager is valid if we have this compositing type and we
know that it is not valid on OpenGL1Compositing. This gives us a much
better check and allows us to use the isValid method just for where we
want to check whether the shaders compiled successfully.
In addition some effects require OpenGL2, so we do not need to check
again that the ShaderManager is valid. Such usages are removed.
The CompositingType enum turns into flags and two new values are
introduced: OpenGL1Compositing and OpenGL2Compositing.
Those new values are or-ed to OpenGLCompositing so that a simple check
for the flag OpenGLCompositing works in case of one of those two new
values. To make the generic check for OpenGL compositing easier a method
in EffectsHandler is introduced to just check for this.
The scenes now return either OpenGL1Compositing or OpenGL2Compositing
depending on which Scene implementation. None returns OpenGLCompositing.
The public member variables for opacity, saturation and brightness
are removed in favor for getter and setters. The variables are
moved into a private class. Those are now qreal instead of double.
To make usage inside the effects easier a multiply method is added
which multiplies the current value with passed in factor and returns
the new value in a functional programming style.
This commit is the top-most of a patch series to refactor
ScreenPaintData and WindowPaintData. Other related commits are:
* 0811772
* ebdc7ec
* 2c8dd8d
* 7699726
* 68e0201
* 611cb09
REVIEW: 105141
BUG: 303314
FIXED-IN: 4.10
Effects can specify their minimum requirements in their
desktop file:
* OpenGL
* OpenGL 2 (GLSL required)
* Shaders (either ARB or OpenGL 2)
The configuration module uses this information in combination
with which backend KWin is currently using. So if e.g. OpenGL
is used and an effect requires OpenGL 2 a detailed error
message can be showed that OpenGL 2 is required.
BUG: 209213
FIXED-IN: 4.9.0
REVIEW: 104847
Effects that need GLSL require that OpenGL 2 is active.
It does not matter whether the GPU would support it if
OpenGL 2 is not used.
Cherry-picked from db42152
CCBUG: 299426
The effect did not check whether the ShaderManager is valid causing
a null pointer access when trying to use the shader.
Additionally this change moves the Shader init into the close window
slot as close window referrenced windows without checking whether the
effect would work. If the effect would not work each closed window
would be referrenced without any chance to being unreffed again as this
code is in a block checking whether the effect is valid.
BUG: 291390
FIXED-IN: 4.8.0
Each effect is able to declare itself as currently being active,
that is transforming windows or painting or screen or doing anything
during the current rendered frame.
This change eliminates the hottest path inside KWin identified by
callgrind.
REVIEW: 102449
Client and Unmanaged use a signal to notify that they are about to be closed.
The EffectsHandlerImpl is connected to those signals and emits the appropriate
windowClosed signal to which the effects are connected.
svn path=/trunk/KDE/kdebase/workspace/; revision=1213663
The following changes were in SVN, but were removed from git:
M wallpapers/Air/metadata.desktop
M wallpapers/Autumn/metadata.desktop
M wallpapers/Blue_Wood/metadata.desktop
M wallpapers/Grass/metadata.desktop
M wallpapers/Hanami/metadata.desktop
M wallpapers/Horos/metadata.desktop
M wallpapers/Media_Life/metadata.desktop
M wallpapers/Plasmalicious/metadata.desktop
M wallpapers/Quadros/metadata.desktop
svn path=/trunk/KDE/kdebase/workspace/; revision=1206942
The following changes were in SVN, but were removed from git:
M wallpapers/Horos/metadata.desktop
svn path=/trunk/KDE/kdebase/workspace/; revision=1191511
The following changes were in SVN, but were removed from git:
M wallpapers/Aghi/metadata.desktop
M wallpapers/Air/metadata.desktop
M wallpapers/Autumn/metadata.desktop
M wallpapers/Blue_Wood/metadata.desktop
M wallpapers/Ethais/metadata.desktop
M wallpapers/Evening/metadata.desktop
M wallpapers/Fields_of_Peace/metadata.desktop
M wallpapers/Finally_Summer_in_Germany/metadata.desktop
M wallpapers/Fresh_Morning/metadata.desktop
M wallpapers/Grass/metadata.desktop
M wallpapers/Hanami/metadata.desktop
M wallpapers/Media_Life/metadata.desktop
M wallpapers/Plasmalicious/metadata.desktop
M wallpapers/Quadros/metadata.desktop
M wallpapers/Red_Leaf/metadata.desktop
svn path=/trunk/KDE/kdebase/workspace/; revision=1177799
The following changes were in SVN, but were removed from git:
M wallpapers/Blue_Wood/metadata.desktop
M wallpapers/Ethais/metadata.desktop
M wallpapers/Fields_of_Peace/metadata.desktop
M wallpapers/Finally_Summer_in_Germany/metadata.desktop
M wallpapers/Grass/metadata.desktop
M wallpapers/Media_Life/metadata.desktop
M wallpapers/Quadros/metadata.desktop
svn path=/trunk/KDE/kdebase/workspace/; revision=1155392
The following changes were in SVN, but were removed from git:
M wallpapers/Autumn/metadata.desktop
M wallpapers/Blue_Wood/metadata.desktop
M wallpapers/Grass/metadata.desktop
M wallpapers/Hanami/metadata.desktop
svn path=/trunk/KDE/kdebase/workspace/; revision=1101859
The following changes were in SVN, but were removed from git:
M wallpapers/Aghi/metadata.desktop
M wallpapers/Ethais/metadata.desktop
M wallpapers/Media_Life/metadata.desktop
M wallpapers/Plasmalicious/metadata.desktop
M wallpapers/Quadros/metadata.desktop
svn path=/trunk/KDE/kdebase/workspace/; revision=1098905
The following changes were in SVN, but were removed from git:
M wallpapers/Aghi/metadata.desktop
M wallpapers/Code_Poets_Dream/metadata.desktop
M wallpapers/Curls_on_Green/metadata.desktop
M wallpapers/Ethais/metadata.desktop
M wallpapers/Evening/metadata.desktop
M wallpapers/Fields_of_Peace/metadata.desktop
M wallpapers/Finally_Summer_in_Germany/metadata.desktop
M wallpapers/Fresh_Morning/metadata.desktop
M wallpapers/Media_Life/metadata.desktop
M wallpapers/Plasmalicious/metadata.desktop
M wallpapers/Quadros/metadata.desktop
M wallpapers/Red_Leaf/metadata.desktop
M wallpapers/Spring_Sunray/metadata.desktop
M wallpapers/The_Rings_of_Saturn/metadata.desktop
svn path=/trunk/KDE/kdebase/workspace/; revision=1097842
The following changes were in SVN, but were removed from git:
M wallpapers/Aghi/metadata.desktop
M wallpapers/Air/metadata.desktop
M wallpapers/Code_Poets_Dream/metadata.desktop
M wallpapers/Curls_on_Green/metadata.desktop
M wallpapers/Ethais/metadata.desktop
M wallpapers/Evening/metadata.desktop
M wallpapers/Fields_of_Peace/metadata.desktop
M wallpapers/Finally_Summer_in_Germany/metadata.desktop
M wallpapers/Fresh_Morning/metadata.desktop
M wallpapers/Media_Life/metadata.desktop
M wallpapers/Plasmalicious/metadata.desktop
M wallpapers/Quadros/metadata.desktop
M wallpapers/Red_Leaf/metadata.desktop
M wallpapers/Spring_Sunray/metadata.desktop
M wallpapers/The_Rings_of_Saturn/metadata.desktop
svn path=/trunk/KDE/kdebase/workspace/; revision=1068486
The following changes were in SVN, but were removed from git:
M wallpapers/Aghi/metadata.desktop
M wallpapers/Air/metadata.desktop
M wallpapers/Curls_on_Green/metadata.desktop
M wallpapers/Evening/metadata.desktop
M wallpapers/Fields_of_Peace/metadata.desktop
M wallpapers/Finally_Summer_in_Germany/metadata.desktop
M wallpapers/Fresh_Morning/metadata.desktop
M wallpapers/Media_Life/metadata.desktop
M wallpapers/Plasmalicious/metadata.desktop
M wallpapers/Quadros/metadata.desktop
M wallpapers/Red_Leaf/metadata.desktop
M wallpapers/Spring_Sunray/metadata.desktop
M wallpapers/The_Rings_of_Saturn/metadata.desktop
M wallpapers/There_is_Rain_on_the_Table/metadata.desktop
svn path=/trunk/KDE/kdebase/workspace/; revision=1068118
The following changes were in SVN, but were removed from git:
M wallpapers/Aghi/metadata.desktop
M wallpapers/Air/metadata.desktop
M wallpapers/Code_Poets_Dream/metadata.desktop
M wallpapers/Curls_on_Green/metadata.desktop
M wallpapers/Evening/metadata.desktop
M wallpapers/Fields_of_Peace/metadata.desktop
M wallpapers/Finally_Summer_in_Germany/metadata.desktop
M wallpapers/Fresh_Morning/metadata.desktop
M wallpapers/Media_Life/metadata.desktop
M wallpapers/Plasmalicious/metadata.desktop
M wallpapers/Red_Leaf/metadata.desktop
M wallpapers/Spring_Sunray/metadata.desktop
M wallpapers/The_Rings_of_Saturn/metadata.desktop
M wallpapers/There_is_Rain_on_the_Table/metadata.desktop
