Author Topic: CopyScreen y position not working (Read 4000 times)

Cuban-Pete · « **on:** July 04, 2011, 07:30:21 pm »

Hi,

I'm using CopyScreen and the y position is off.

I tried to fix it to change this line in the source code:

GLCheck(glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, srcRect.Left, srcRect.Top + myHeight, myWidth, myHeight));

The glCopyTexSubImage2D function starts at the left bottom and not the top left position. My fix however does not work, somehow it goes higher than it should... :roll:

Cuban-Pete · « **Reply #1 on:** July 07, 2011, 06:30:54 pm »

Nobody has this problem? :roll:

Laurent · « **Reply #2 on:** July 07, 2011, 07:33:12 pm »

I don't remember such a problem with the CopyScreen function. Do you use SFML 1 or 2?

Cuban-Pete · « **Reply #3 on:** July 07, 2011, 07:53:37 pm »

I use SFML 2.

If you cut the screen in 4 even parts and try to get the bottom right one with the copyscreen function, it wont work.

Or perhaps it has to do with the opengl perspective?

Laurent · « **Reply #4 on:** July 07, 2011, 08:43:41 pm »

Can you show a complete and minimal code that reproduces the problem?

Cuban-Pete · « **Reply #5 on:** July 08, 2011, 08:27:36 pm »

Yes, here it is: https://legacy.sfmluploads.org/index.php?page=view_code&isparent=yes&id=16

Cuban-Pete · « **Reply #6 on:** July 11, 2011, 09:01:15 am »

bump

Code: [Select]


//taking a copyscreen of fourth quarter:
screen.CopyScreen(window, sf::IntRect( 600/2, 0, 300, 200) ); //this gives correct result
screen.CopyScreen(window, sf::IntRect( 600/2, 400/2, 300, 200) ); //this should be the correct code

Laurent · « **Reply #7 on:** July 11, 2011, 11:42:39 pm »

You were right about inverted coordinates, now it's fixed. Thanks for your feedback

Cuban-Pete · « **Reply #8 on:** July 15, 2011, 04:03:42 pm »

Thanks! It works great now!