Now all work fast ,) thanks. I was think about other
optimisation:
I have own event loop, and in draw place it can be checked for focused
window and setup global alpha value.
--8<---------------cut here---------------start------------->8---
AG_TAILQ_FOREACH(win, &agView->windows,
windows) {
AG_ObjectLock(win);
// check is window is focused
// and set alpha
// ....
AG_WindowDraw(win);
AG_ObjectUnlock(win);
}
--8<---------------cut here---------------end--------------->8---
But I see it work fast at all.
P.S. Cast for c++?
--8<---------------cut here---------------start------------->8---
===================================================================
--- gui/widget.h (revision 8281)
+++ gui/widget.h (working copy)
@@ -348,7 +348,7 @@
static __inline__ void
AG_WidgetUpdate(void *obj)
{
- AG_Widget *wid = obj;
+ AG_Widget *wid = (AG_Widget *) obj;
AG_ObjectLock(wid);
wid->flags |= AG_WIDGET_UPDATE_WINDOW;
--8<---------------cut here---------------end--------------->8---
Julien Nadeau <[email protected]> writes:
> A better fix has been committed (r8277). Instead of using:
>
> AG_WindowUpdate(AG_WidgetParentWindow(foo));
>
> you can now do:
>
> AG_WidgetUpdate(foo);
>
> Instead of updating the geometries directly, this sets a flag that
> will cause them to be recomputed just once, before the next rendering
> cycle. This also works if the widget is not attached to any window at
> the time of the call.
>
> On Tue, Aug 18, 2009 at 09:27:21PM -0400, Julien Nadeau wrote:
>>
>> Ok, a fix has been committed to svn (r8276). A pointer to the parent
>> window is now kept in the Widget structure and updated on attach and
>> detach. Please test and send me your feedback.
>>
>> On Tue, Aug 18, 2009 at 11:00:33PM +0000, Olexandr Sydorchuk wrote:
>> > Hi,
>> >
>> > I'm working on alpha blending style, only for openGL mode. For this I
>> > will rewrite primitive functions that will apply RGBA color (instead RGB
>> > like it in current), this way make possible use other style w/o
>> > rewriting style code. Al work good, but. I want to fade unfocudes
>> > window, but its seems no good fast way to find parent window for
>> > widget. Currently I use *AG_WidgetParentWindow* for this, but this hard
>> > and FPS decreased. Is it possible to have _cashed_ ->win field for all
>> > widget like it's in titlebar->win? Or other fast way for finding
>> > window?
>> >
>> > Some code:
>> > --8<---------------cut here---------------start------------->8---
>> >
>> > Uint8 alphaFadeUnfocusedWin = 100;
>> >
>> > // fade unfocused window
>> > inline Uint8 ComputeAlpha(AG_Widget *wid, Uint8 alpha)
>> > {
>> > if (AG_WindowIsFocused(AG_WidgetParentWindow(wid)))
>> > return alpha;
>> > else
>> > {
>> > int v = alpha;
>> > v -= alphaFadeUnfocusedWin;
>> > if (v < 0)
>> > return 0;
>> > else
>> > return (Uint8) v;
>> > }
>> > }
>> >
>> > static void
>> > _rectGL(void *p, AG_Rect r, Uint32 color)
>> > {
>> > AG_Widget *wid = (AG_Widget *)p;
>> > Uint8 red, green, blue, alpha;
>> > int x1 = wid->rView.x1 + r.x;
>> > int y1 = wid->rView.y1 + r.y;
>> > int x2 = x1 + r.w - 1;
>> > int y2 = y1 + r.h - 1;
>> >
>> > BeginBlending();
>> >
>> > AG_GetRGBA(color, agVideoFmt, &red,&green,&blue,&alpha);
>> > glBegin(GL_POLYGON);
>> > glColor4ub(red, green, blue, ComputeAlpha(wid, alpha));
>> > glVertex2i(x1, y1);
>> > glVertex2i(x2, y1);
>> > glVertex2i(x2, y2);
>> > glVertex2i(x1, y2);
>> > glEnd();
>> >
>> > EndBlending();
>> > }
>> > --8<---------------cut here---------------end--------------->8---
>> >
>> > --
>> > Olexandr
>> >
>> > _______________________________________________
>> > Agar mailing list
>> > [email protected]
>> > http://libagar.org/lists.html
>> _______________________________________________
>> Agar mailing list
>> [email protected]
>> http://libagar.org/lists.html
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