6 #define PACK_RGB16(r, g, b) \
7 ((((uint16_t)(r) << 8) & 0xf800) | \
8 (((uint16_t)(g) << 3) & 0x7e0) | \
9 (((uint16_t)(b) >> 3) & 0x1f))
11 #define UNPACK_R16(c) (((c) >> 8) & 0xf8)
12 #define UNPACK_G16(c) (((c) >> 3) & 0xfc)
13 #define UNPACK_B16(c) (((c) << 3) & 0xf8)
15 #define PACK_RGB32(r, g, b) \
16 ((((r) & 0xff) << 16) | (((g) & 0xff) << 8) | ((b) & 0xff))
18 #define UNPACK_R32(c) (((c) >> 16) & 0xff)
19 #define UNPACK_G32(c) (((c) >> 8) & 0xff)
20 #define UNPACK_B32(c) ((c) & 0xff)
22 int clip_line(int *x0, int *y0, int *x1, int *y1, int xmin, int ymin, int xmax, int ymax);
23 void draw_line(int x0, int y0, int x1, int y1, unsigned short color);
25 /* scale in 24.8 fixed point */
26 void blur_horiz(uint16_t *dest, uint16_t *src, int xsz, int ysz, int radius, int scale);
27 void blur_vert(uint16_t *dest, uint16_t *src, int xsz, int ysz, int radius, int scale);
29 void convimg_rgb24_rgb16(uint16_t *dest, unsigned char *src, int xsz, int ysz);
31 void blit(uint16_t *dest, int destwidth, uint16_t *src, int xsz, int ysz, int pitch_pix);
32 void blit_key(uint16_t *dest, int destwidth, uint16_t *src, int xsz, int ysz, int pitch_pix, uint16_t key);
34 #endif /* GFXUTIL_H_ */