Hello,
I use Elm slideshow in my application and I try to load a big image. I just
need to dispalay the full image (no zoom ...)
I try to use photocam but I have 2 problems with it :
- the animation when the image is fit. This animation is in a visual
conflict with the slideshow which has his own animation
- an object is not a member of the photocam object and stay at the top when
photocam is swallowed. I did not find what object was responsible.
Next I try to use my photo object and add some optimization:
When I set a image file I retrieve his size with (this method does not
downlad the image ?):
evas_object_image_file_set(o, NULL, NULL);
evas_object_image_load_scale_down_set(o, 0);
evas_object_image_file_set(o, image, photo_group);
evas_object_image_size_get(o, &iw, &ih);
Then I use evas_object_image_load_scale_down_set() and preload with:
evas_object_image_preload(o, 1);
evas_object_image_file_set(o, NULL, NULL);
evas_object_image_load_scale_down_set(o, sd->zoom);
evas_object_image_file_set(o, sd->photo_file, sd->photo_group);
evas_object_image_preload(o, 0);
The preload seems not working :/ The application freeze during a time.
Preload load the file in a thread right ?
I am not sure about what evas_object_image_load_scale_down_set() does. I
think it is a way to not load all the image but only certains pixels.
Usefull if the image dispalyed is smaller than the real size. I use this
code to calculate the zoom :
int zoomw = 1, zoomh = 1;
while(w_img/2>w)
{
w_img = w_img/2;
zoomw++;
}
while(h_img/2>h)
{
h_img = h_img/2;
zoomh++;
}
sd->zoom = (zoomw<zoomh?zoomw:zoomh);
The conclusion is that photocam load the image 3 times faster than me :)
--
Regards.
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