Support padding in images stored in atlas texture
Support padding in images stored in atlas texture

If the stride does not match the width of the image, we upload
it line-by-line instead of as one big rect.

Change-Id: I5e08afcf5c35dc810fed25e45255d55d932b2a4c
Reviewed-by: Gunnar Sletta <79778dbbdd172ad4142b370229409ecedf95bcb5@sletta.org>

mgrunditz/qtdeclarative-2d,mgrunditz/qtdeclarative-2d,mgrunditz/qtdeclarative-2d,mgrunditz/qtdeclarative-2d,mgrunditz/qtdeclarative-2d,mgrunditz/qtdeclarative-2d,mgrunditz/qtdeclarative-2d