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SDL: optimized redraw using user defined event

This commit is contained in:
Vadim Lopatin 2014-05-07 12:17:50 +04:00
parent 3adf2138b5
commit b684955132
1 changed files with 37 additions and 12 deletions
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49
src/dlangui/platforms/sdl/sdlapp.d
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@ -36,9 +36,11 @@ version(USE_SDL) {
// pragma(lib, "dl");
class SDLWindow : Window {
SDLPlatform _platform;
SDL_Window * _win;
SDL_Renderer* _renderer;
this(string caption, Window parent) {
this(SDLPlatform platform, string caption, Window parent) {
_platform = platform;
_caption = caption;
debug Log.d("Creating SDL window");
create();
@ -223,15 +225,6 @@ version(USE_SDL) {
//_exposeSent = false;
}
/// request window redraw
override void invalidate() {
//if (_exposeSent)
// return;
//_exposeSent = true;
//TODO optimize
redraw();
}
protected ButtonDetails _lbutton;
protected ButtonDetails _mbutton;
protected ButtonDetails _rbutton;
@ -495,6 +488,17 @@ version(USE_SDL) {
}
return res;
}
uint _lastRedrawEventCode;
/// request window redraw
override void invalidate() {
_platform.sendRedrawEvent(windowId, ++_lastRedrawEventCode);
}
void processRedrawEvent(uint code) {
if (code == _lastRedrawEventCode)
redraw();
}
}
private __gshared bool _enableOpengl;
@ -526,8 +530,21 @@ version(USE_SDL) {
return null;
}
private uint _redrawEventId;
void sendRedrawEvent(uint windowId, uint code) {
if (!_redrawEventId)
_redrawEventId = SDL_RegisterEvents(1);
SDL_Event event;
event.type = _redrawEventId;
event.user.windowID = windowId;
event.user.code = code;
SDL_PushEvent(&event);
}
override Window createWindow(string windowCaption, Window parent) {
SDLWindow res = new SDLWindow(windowCaption, parent);
SDLWindow res = new SDLWindow(this, windowCaption, parent);
_windowMap[res.windowId] = res;
return res;
}
@ -553,7 +570,15 @@ version(USE_SDL) {
Log.i("event.type == SDL_QUIT");
break;
}
if (_redrawEventId && event.type == _redrawEventId) {
// user defined redraw event
uint windowID = event.user.windowID;
SDLWindow w = getWindow(windowID);
if (w) {
w.processRedrawEvent(event.user.code);
}
continue;
}
switch (event.type) {
case SDL_WINDOWEVENT:
{