void QSGNode::setFlag(Flag f, bool enabled)
{
if (bool(m_nodeFlags & f) == enabled)
return;
m_nodeFlags ^= f;
Q_ASSERT(int(UsePreprocess) == int(DirtyUsePreprocess));
int changedFlag = f & UsePreprocess;
if (changedFlag)
markDirty(DirtyState(changedFlag));
}
// Initializes the graphics system
void _Graphics::Init(const _WindowSettings &WindowSettings) {
this->WindowSize = WindowSettings.Size;
this->Anisotropy = 0;
FramesPerSecond = 0;
FrameCount = 0;
FrameRateTimer = 0;
Context = 0;
Window = 0;
Enabled = true;
DirtyState();
// Set root element
Element = new _Element();
Element->Visible = true;
Element->Size = WindowSize;
Element->CalculateBounds();
// Set video flags
Uint32 VideoFlags = SDL_WINDOW_OPENGL;
if(WindowSettings.Fullscreen)
VideoFlags |= SDL_WINDOW_FULLSCREEN_DESKTOP;
// Set opengl attributes
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 1);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_COMPATIBILITY);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
// Set video mode
Window = SDL_CreateWindow(WindowSettings.WindowTitle.c_str(), WindowSettings.Position.x, WindowSettings.Position.y, WindowSettings.Size.x, WindowSettings.Size.y, VideoFlags);
if(Window == nullptr)
throw std::runtime_error("SDL_CreateWindow failed");
// Set up opengl context
Context = SDL_GL_CreateContext(Window);
if(Context == nullptr)
throw std::runtime_error("SDL_GL_CreateContext failed");
InitGLFunctions();
int MajorVersion, MinorVersion;
SDL_GL_GetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, &MajorVersion);
SDL_GL_GetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, &MinorVersion);
// Set vsync
SDL_GL_SetSwapInterval(WindowSettings.Vsync);
// Set up OpenGL
SetupOpenGL();
// Setup viewport
ChangeViewport(WindowSize);
png_init(0, 0);
}
void QSGNode::setFlags(Flags f, bool enabled)
{
Flags oldFlags = m_nodeFlags;
if (enabled)
m_nodeFlags |= f;
else
m_nodeFlags &= ~f;
Q_ASSERT(int(UsePreprocess) == int(DirtyUsePreprocess));
int changedFlags = (oldFlags ^ m_nodeFlags) & UsePreprocess;
if (changedFlags)
markDirty(DirtyState(changedFlags));
}
