Hi! I render panel to bmap. Then I read pixel value from this panel. Panel stores 1024X768 24bit BMP file.




Now, I tried comment different lines. This only one:

bmap_to_format(colormap,888);

kills fps, drops it to 0. Why is it so? Is it so resourcy, or I am doing something wrong?

Very BMAP dependant, rather than resourcey.
If the BMAP its converting is large resolution, it will be SSSSLLLLOOOOWWWWWW.

Ah, damn it. What should I do now... Maybe find a way to process only little part of bmap where mouse pointer actually is... OH! I KNOW I KNOW ^____^

i tried somthing similar and got the same problem but i realy need the whole screen

i am trying to scan what frame was differnt next to a older frame but rendering every frame is way to haevyeven white small size bmaps

hope you can find it out but maby check this only when you click on the mouse

Thanks to EvilSOB's confirmation, I dropped idea of converting screen every frame.
What I did is scanned image with colors on load only once, and stored cell color information into the array for further uses, and that suits my needs.

Rendering every full frame indeed impossible... maybe pixel shader can help somehow.

why do you convert it? just get the format by bmap_lock and use it in your pixel_to_vec-instruction.

target maps can not be used for pixel instruction. I get crash.

Maybe there are DirectX-functions to work with pixels of a target map.