bool BlurEffect::enabledByDefault() { GLPlatform *gl = GLPlatform::instance(); if (gl->isIntel() && gl->chipClass() < SandyBridge) return false; return true; }
void LanczosFilter::init() { if (m_inited) return; m_inited = true; const bool force = (qstrcmp(qgetenv("KWIN_FORCE_LANCZOS"), "1") == 0); if (force) { kWarning(1212) << "Lanczos Filter forced on by environment variable"; } if (!force && options->glSmoothScale() != 2) return; // disabled by config // The lanczos filter is reported to be broken with the Intel driver and Mesa 7.10 GLPlatform *gl = GLPlatform::instance(); if (!force && gl->driver() == Driver_Intel && gl->mesaVersion() >= kVersionNumber(7, 10) && gl->chipClass() < SandyBridge) return; // With fglrx the ARB Shader crashes KWin (see Bug #270818 and #286795) and GLSL Shaders are not functional if (!force && gl->driver() == Driver_Catalyst) { return; } m_shader = new LanczosShader(this); if (!m_shader->init()) { delete m_shader; m_shader = 0; } }