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.
ShaderManager supports a new concept to load just a fragment shader from file
and use a built-in shader for the vertex shader. This allows an effect to use
a custom fragment shader.
The ShaderManager provides the built-in shaders for scene and effects.
Scene and effects can simply push one of those built-in shaders or a
custom one on a stack ensuring that the previously bound shader will be
rebound when the shader is poped again.
The class will be extended to not only have built-in shaders but also to
load custom shaders and being the only way to bind a shader at all.
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.
Revert rev 1137490: it caused compositing not working with legacy NVIDIA drivers and might be responsible for freezes when changing config.
It can be reverted as there is already a better fix for buggy drivers present in 4.5.1.
Did I mention that I love drivers?
CCBUG: 243991
CCBUG: 241402
svn path=/trunk/KDE/kdebase/workspace/; revision=1167909
This gives us one API for both legacy and modern painting.
All glRenderGeometry* calls are deprecated as they use quads and
legacy painting.
svn path=/trunk/KDE/kdebase/workspace/; revision=1153911
This way we can get rid of the texture matrix transformations when rendering a standard texture - no matter if it's inverted or not.
svn path=/trunk/KDE/kdebase/workspace/; revision=1152649
This is a workaround to the problem that some drivers do not return a complete FBO, but support the extension. Which caused the blur effect to get loaded without working and in consequence Plasma to use the blur-optimized and very translucent backgrounds.
CCBUG: 240956
svn path=/trunk/KDE/kdebase/workspace/; revision=1137490
