Our primary target is Texture From Pixmap and it is supported
by all important drivers nowadays. If a driver is not able to
support TFP using OpenGL at all is probably no good idea and
XRender is more suited.
When rendering opaque (RGB-only) windows the alpha ends up to be 0
with blending disabled. This breaks subsequent rendering steps which
require blenden (e.g. Lanczos). Therefore a uniform is used to ensure
that the alpha channel is set to 1.
The vertex buffer implementation uses the shader manager to decide
whether core painting should be used or not. Shader manager is only
used by shaders using vertex attributes instead of gl_Vertex etc.
A color can be specified to render the geometry of the VBO.
For legacy painting glColor is used, for shader a uniform is set.
In order to allow rendering without texcoords, it is possible to pass
a null pointer as texcoords.
Shader added to scene which just renders a colored geometry without texturing.
Adds a shader to render an untransformed scene. renderGLGeometry is not used any more and replaced by generated triangles stored in a GLVertexBuffer.
The GLVertexBuffer has a new attribute to decide whether a core profile compatible rendering has to be performed.
Currently windows and EffectFrames can make use of the new shader.
The shader contains a debug mode which colours all rendered fragments in green. It is currently enabled in scene_opengl.
Rendering transformed geometries (without shader) is currently broken.
differecens to patch atteched to 258971:
- removed debug statements
- fixed indention...
- NON vsync strategy does not rely on the estimation, but on the time passed since the last repaint trigger, allowing a precise framerate
CCBUG: 258971
svn path=/trunk/KDE/kdebase/workspace/; revision=1210445
this should improve v'syncing, maybe v'synced "smoothness"
remaining and exposed issue are "dirty textures" w/o damage events (see the requst description)
can be diminished by increasing MaxFPS above the fastest update (or shadowed below the slowest one)
CCBUG: 258971
svn path=/trunk/KDE/kdebase/workspace/; revision=1207577
The GLX implementation in the X server appears to have a hardcoded limit
to how many pixmaps can be bound to textures simultaneously when using
indirect rendering, which we can end up exceeding with the changes
introduced in r1182198.
BUG: 256359
FIXED-IN: 4.5.5
svn path=/trunk/KDE/kdebase/workspace/; revision=1203578
This worksaround a problem with the nouveau driver causing
the text frames to be incorrectly rendered. We need to keep
the QPixmap around as long as we have a texture created from
that texture.
This applies for the text and the unstyled effect frame. For
the frames generated from Plasma's FrameSvgs it is not required.
Addresses freedesktop.org bug 30286
svn path=/trunk/KDE/kdebase/workspace/; revision=1184458
Prefer the GL_TEXTURE_2D target if the framebuffer configuration indicates
that it's supported.
This fixes a performance problem with the r600g driver.
freedesktop bug 30483.
svn path=/trunk/KDE/kdebase/workspace/; revision=1183978
We don't need to do this every time we bind the texture to a GL context,
even with strict binding.
svn path=/trunk/KDE/kdebase/workspace/; revision=1182198
For Software Rasterizer we never ever want to have OpenGL compositing.
No matter how many config options the user sets it has to be disabled.
Though falling back to XRender makes sense in the case of software
rasterization.
svn path=/trunk/KDE/kdebase/workspace/; revision=1176787
into KWin's global namespace. Morever None already kind of clashes with X's None.
CCMAIL: kde@martin-graesslin.com
svn path=/trunk/KDE/kdebase/workspace/; revision=1170588
This allows an effect to fade between old and new text/icon. As an example it's added to CoverSwitch.
Currently only supported in OpenGL. XRender might be added, but I'm missing an idea for an effect to add it.
Most effects using EffectFrame require OpenGL anyway.
svn path=/trunk/KDE/kdebase/workspace/; revision=1160252
I missed this line in my previous change to disable the fallback which made the fallback happen nevertheless.
svn path=/trunk/KDE/kdebase/workspace/; revision=1157978
So it is more consistent (in KDE newspeak "elegant") with other selections and as a plus we get rid of all the custom rendering code in boxswitch.
svn path=/trunk/KDE/kdebase/workspace/; revision=1155051
Some effects (boxswitch and flipswitch) still need to be changed to not set the icon in each frame.
svn path=/trunk/KDE/kdebase/workspace/; revision=1152367
Rendering of the EffectFrame is moved into the scene as Scene::EffectFrame with a concrete implementation in SceneXrender and SceneOpenGL.
A factory method for an EffectFrame is added to the EffectsHandler, which is used by the effects.
Next step: pass the EffectFrame through all effects, so that effects can transform, blur, invert whatever it.
svn path=/trunk/KDE/kdebase/workspace/; revision=1151271
With Intel drivers currently the self check at KWin startup fails (no idea why) and KWin falls back to XRender. This is probably an explanation for all the complaints about slow kwin in 4.5 and the missing effects. So let's fail and make it possible to restart compositing via systemsettings and alt+shift+f12.
Nevertheless it would be nice to fix the the failing selfcheck...
svn path=/trunk/KDE/kdebase/workspace/; revision=1148315
to work correctly but as doing it there defeats the purpose of moving
the code to begin with there's no point in moving it.
BUG: 226049
svn path=/trunk/KDE/kdebase/workspace/; revision=1088054
