C++ (Cpp) ScopedPointer::lockWasGained Examples

Example #1

File: juce_OpenGLContext.cpp Project: johnoch/cabbage

    bool renderFrame()
    {
        ScopedPointer<MessageManagerLock> mmLock;

        const bool isUpdating = needsUpdate.compareAndSetBool (0, 1);

        if (context.renderComponents && isUpdating)
        {
            mmLock = new MessageManagerLock (this);  // need to acquire this before locking the context.
            if (! mmLock->lockWasGained())
                return false;
        }

        if (! context.makeActive())
            return false;

        NativeContext::Locker locker (*nativeContext);

        JUCE_CHECK_OPENGL_ERROR

        if (context.renderer != nullptr)
        {
            glViewport (0, 0, viewportArea.getWidth(), viewportArea.getHeight());
            context.renderer->renderOpenGL();
            clearGLError();
        }

        if (context.renderComponents)
        {
            if (isUpdating)
            {
                paintComponent();
                mmLock = nullptr;
            }

            glViewport (0, 0, viewportArea.getWidth(), viewportArea.getHeight());
            drawComponentBuffer();
        }

        context.swapBuffers();
        return true;
    }