plan9 man page for stretch_blit

stretch_blit(3alleg4)						  Allegro manual					     stretch_blit(3alleg4)

NAME

       stretch_blit - Scales a rectangular area from one bitmap to another. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       void  stretch_blit(BITMAP  *source,  BITMAP  *dest,  int  source_x,  source_y, source_width, source_height, int dest_x, dest_y, dest_width,
       dest_height);

DESCRIPTION

       Like blit(), except it can scale images (so the source and destination rectangles don't need to be the same size) and requires  the  source
       and destination bitmaps to be of the same color depth. This routine doesn't do as much safety checking as the regular blit(): in particular
       you must take care not to copy from areas outside the source bitmap, and you cannot blit between overlapping regions, ie. you must use dif-
       ferent bitmaps for the source and the destination. Moreover, the source must be a memory bitmap. Example:

	  BITMAP *bmp;
	  ...
	  /* Stretch bmp to fill the screen. */
	  stretch_blit(bmp, screen, 0, 0, bmp->w, bmp->h,
		       0, 0, SCREEN_W, SCREEN_H);

SEE ALSO

       blit(3alleg4),	 masked_stretch_blit(3alleg4),	  stretch_sprite(3alleg4),    exalpha(3alleg4),    exconfig(3alleg4),	 exscale(3alleg4),
       extrans(3alleg4), extrans2(3alleg4)

Allegro 							   version 4.4.2					     stretch_blit(3alleg4)