GIF drawing performance

anuj.tanksali · May 25th 2021, 6:27pm

Hello,

Am using Image_setGif for setting the gif's which seems to be affecting the timing for the other tasks in my application. I have 4 gifs which animate at a time on one screen.
I have certain tasks which have to be executed every 5 seconds but the gif drawing affects this timing.

Is there any way the performance can be increased or any other method of drawing which increases the gif drawing performance.

Thanks
Regards,
Anuj

SEGGER - Florian · Jun 2nd 2021, 3:48pm

Hi,

Depending on the size of your GIFs, the timing could become inaccurate if decoding of the GIFs takes too much time. To boost performance, you could convert your GIFs into animated sprites which do not have to be decoded during runtime. They are essentially an array of bitmaps and time stamps and therefore much faster than GIFs.

Select "File --> Create animated sprite from GIF" in the Bitmap Converter to convert your GIF into a sprite. GUI_SPRITE_CreateAnim() can be called to run the animation.

Best regards,
Florian

anuj.tanksali · Jun 4th 2021, 12:43pm

Hi,

Thanks for your reply
Am calling the functions as below

flameSprite = GUI_SPRITE_CreateAnim(apbmFlameSprite7,140,122,200,aDelayFlameSprite7,11);

GUI_SPRITE_StartAnim(flameSprite);

flameSprite is always zero so my sprite function is failing. What could be the issue?
Attached is the generated c code for the sprite

Thanks
Regards,
Anuj

SEGGER - Florian · Jun 8th 2021, 10:36am

Hi,

The following call was sufficient to run the animation:

C Source Code

GUI_SPRITE_CreateAnim(apbmFlameSprite7, 10, 10, 0, aDelayFlameSprite7, GUI_COUNTOF(apbmFlameSprite7));

The "Period" parameter is 200 instead of 0. The parameter can be used for a fixed period between the images, but it has to be 0 when you pass a pointer to an array of periods, as you did with aDelayFlameSprite7.

Best regards,
Florian

C Source Code

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