tumble: bitblt.h@e1f52aa9f252 (annotated)

bitblt.h@e1f52aa9f252 (annotated)

Fri, 28 Dec 2001 04:55:47 +0000

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 typedef unsigned char u8;
 typedef unsigned int u32;
 typedef int boolean;
 typedef struct Point
 {
   u32 x;
   u32 y;
 } Point;
 typedef struct Rect
 {
   Point upper_left;
   Point lower_right;
 } Rect;
 typedef struct Bitmap
 {
   u8 *bits;
   u32 width;
   u32 height;
   u32 rowbytes;
 } Bitmap;
 #define TF_SRC 0xc
 #define TF_AND 0x8
 #define TF_OR  0xe
 #define TF_XOR 0x6
 #define FLIP_H    0x1
 #define FLIP_V    0x2
 #define TRANSPOSE 0x4
 #define ROT_0     0x0
 #define ROT_90    (TRANSPOSE + FLIP_H)
 #define ROT_180   (FLIP_H + FLIP_V)
 #define ROT_270   (TRANSPOSE + FLIP_V)
 Bitmap *create_bitmap (u32 width, u32 height);
 void free_bitmap (Bitmap *bitmap);
 boolean get_pixel (Bitmap *bitmap, Point coord);
 void set_pixel (Bitmap *bitmap, Point coord, boolean value);
 Bitmap *bitblt (Bitmap *src_bitmap,
 		Rect src_rect,
 		Bitmap *dest_bitmap,
 		Point dest_upper_left,
 		int scan,
 		int tfn);