When using graphicssystem native the texture may be using
GL_TEXTURE_RECTANGLE_ARB instead of GL_TEXTURE_2D. This
needs to be honoured in order to make KWin work reliable
with e.g. R300 chipsets.
BUG: 274607
CCBUG: 276622
FIXED-IN: 4.7.0
The adjusted code for generating texture coordinates did not
take care of GL_TEXTURE_RECTANGLE_ARB textures causing the
generation of wrong texcoords.
BUG: 276622
FIXED-IN: 4.7.0
The uniforms textureWidth and textureHeight were only needed for
normal windows. For everything else it was just 1.0/1.0, that is
normalized.
The makeArrays method is changed to produce normalized texcoords
obsoleting the need for these uniforms. So two uniforms less, one
calculation in vertex shaders less and many many lines of code
removed.
At the same time makeArrays is also adjusted to take care of
yInverted of the texture, which is needed as we no longer can use
the enableUnnormalizedTexCoords which did the yInverted transformation.
REVIEW: 101646
While closing a window it might happen that we emit the windowOpacityChanged
signal although we dont have an EffectWindow.
Related to commit 1ce3f9fc53aa93a7536d43d0c936266f0ae21b65
by checking the graphicssystem at startup
also avoid pixmap and memory leaking on the xrender backend, validate some pointers
on deletion in SceneOpnGL and avoid attempts to render ::isNull pixmaps
Actually it's more a hack and should be addressed in the next
release cycle by allowing effects to modify the scene's blend
equation.
BUG: 274424
FIXED-IN: 4.7.0
This was causing problems with R300G. The GPU supports only limited
GLSL and seems not to be up to rendering the scene appropriate. So
let's better disable the OpenGL 2 branch for such GPUs. If the user
really wants to use it, there is the GLES backend which does not
check for limited GLSL.
BUG: 274457
CCBUG: 274607
FIXED-IN: 4.7.0
For what reason ever motion manager thinks that windows are not
moving during the start animation (but are during the stop animation).
So we also have to look on the timeline to decide whether we should
disable lanczos filter on the windows.
Now wonder the animation was stuttering.
BUG: 274292
FIXED-IN: 4.7.0
The logic to prevent errornous desktops broke setting a window
to all desktops through the task manager. For some reason all
desktops is -1 which is of course less than 1 ;-)
In case we use OpenGL compositing and KWin is started with the raster graphicssystem,
the decoration gets painted with the raster backend.
REVIEW: 101370
