Commit cab2fee5 authored by Martin Flöser's avatar Martin Flöser
Browse files

Ensure that always one shader is on the ShaderStack with GL2

This brings some consistency with GLES2 where also one shader
is always on the stack and allows to use the test whether a shader
is bound to see if the GL2 code path is used. This fixes an issue
with cover/flip switch which tested for a bound shader before the
shader was pushed in multi screen setups.

As well it should bring some improvements as the simple screen
shader is not unbound and rebound in each rendered frame.

BUG: 283609
FIXED-IN: 4.7.3
parent d4b83c3b
......@@ -95,6 +95,10 @@ SceneOpenGL::SceneOpenGL(Workspace* ws)
if (GLPlatform::instance()->supports(GLSL)) {
if (!ShaderManager::instance()->isValid()) {
kDebug(1212) << "No Scene Shaders available";
} else {
// push one shader on the stack so that one is always bound
// consistency with GLES
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