al_set_new_bitmap_samples - Online Linux Manual PageSection : 3
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Source : Allegro reference manual
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NAMEal_set_new_bitmap_samples − Allegro 5 API

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SYNOPSIS #include <allegro5/allegro.h> void al_set_new_bitmap_samples(int samples) SETTER(new_bitmap_samples, samples)

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DESCRIPTIONSets the multi−sampling samples used by newly created bitmaps (on the current thread) if they are used with al_set_target_bitmap(3). 0 means multi−sampling will not be used when drawing into the bitmap, which is the default. 1 means multi−sampling will be used but only using a single sample per pixel (so usually there will be no visual difference to not using multi−sampling at all). Note: Some platforms have restrictions on when the multi−sampling buffer for a bitmap is realized, i.e. down−scaled back to the actual bitmap dimensions. This may only happen after a call to al_set_target_bitmap(3). So for example: al_set_target_bitmap(multisample); al_clear_to_color(blue); al_draw_line(0, 0, 100, 100, red, 1); al_lock_bitmap(multisample, ...) // ERROR: the contents of the bitmap will be undefined al_set_target_bitmap(backbuffer); al_lock_bitmap(multisample, ...) // CORRECT: at this point, the bitmap contents are updated and // there will be an anti−aliased line in it.

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SINCE5.2.1 [Unstable API]: This is an experimental feature and currently only works for the OpenGL backend. 0

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