Add OpenMP support for widget rendering

[lc-soft]

Is your feature request related to a problem? Please describe.

LCUI/src/display.c

Lines 151 to 172 in 4a9516e

	/**
	* FIXME: add OpenMP support
	* Dirty rectangle repaint tasks can be assigned to multiple CPU
	* cores to improve rendering performance
	*/
	/* Repaint dirty rectangles of surface */
	for (LinkedList_Each(rn, &rects)) {
	rect = rn->data;
	ev.paint.rect = *rect;
	LCUI_TriggerEvent(&ev, NULL);
	if (!can_render) {
	continue;
	}
	paint = Surface_BeginPaint(s, rect);
	if (!paint) {
	continue;
	}
	DEBUG_MSG("rect: (%d,%d,%d,%d)\n", paint->rect.x,
	paint->rect.y, paint->rect.width,
	paint->rect.height);
	count += Widget_Render(record->widget, paint);

Describe the solution you'd like
Dirty rectangle repaint tasks can be assigned to multiple CPU cores to improve rendering performance.

Describe alternatives you've considered
None.

Additional context
https://en.wikipedia.org/wiki/OpenMP

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d4yvector has been rewarded.

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• lc-soft ($30.00)

Submitted pull Requests

• #189 perf: Add OpenMP support for widget rendering (#118)

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[hyugabokko]

I would like to work on this issue.

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