diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/drivers/Wayland/Fl_Wayland_Gl_Window_Driver.cxx | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/drivers/Wayland/Fl_Wayland_Gl_Window_Driver.cxx b/src/drivers/Wayland/Fl_Wayland_Gl_Window_Driver.cxx index 09758e422..384c4a205 100644 --- a/src/drivers/Wayland/Fl_Wayland_Gl_Window_Driver.cxx +++ b/src/drivers/Wayland/Fl_Wayland_Gl_Window_Driver.cxx @@ -209,6 +209,11 @@ void Fl_Wayland_Gl_Window_Driver::set_gl_context(Fl_Window* w, GLContext context Fl::error("eglMakeCurrent() failed\n"); } } + if (!(mode() & FL_ALPHA)) { // useful at least for Linux on MacBook hardware + GLfloat vals[4]; + glGetFloatv(GL_COLOR_CLEAR_VALUE, vals); + if (vals[3] == 0.) glClearColor(vals[0], vals[1], vals[2], 1.); + } } /* CONTROL_LEAKING_SUB_GL_WINDOWS |