Flipped Textures

[asdatapel]

Im using Opengl with SFML and im trying to map a texture, but its coming out flipped. In order to get the texture to appear the 'proper' OpenGL way (with the origin at the bottom left), I have to flip the sf::Image horizontally and then vertically. Is this the right way, or am I doing it wrong?

Ive looked around for answer to this but i cant find one. I found this:
http://en.sfml-dev.org/forums/index.php?topic=1273.0
but it doesnt seem to have a solution.

[Laurent]

Why don't you flip your texture coordinates instead?

[asdatapel]

what do you mean?

[Laurent]

You define texture coordinates, right? So you can change these values (swap top and bottom coordinates) instead of flipping the whole texture.

[asdatapel]

Gotcha, but that is knid of annoying though, because then you have to do it for every single coordinate

[Nexus]

Write a function that does it for you.

[Laurent]

And? You already define all the texture coordinates in your code, right? So there's no extra work, just swap the values for top and bottom coordinates.