Low quality in background image.
Why the background image quality is reduced?
I use this code:
al_draw_scaled_bitmap(picture, 0, 0, pw, ph, 0, 0, 1280, 800, 0);
The image has a good quality when displayed with a viwer.
Thread #611454. Printed from Allegro.cc
Different scaling methods. The default is a Point/Nearest Neighbor scale. To use something similar to what an image viewer would use, do this: