src/swf_matrix.h

   1 /*
   2   +----------------------------------------------------------------------+
   3   | Author: yoya@awm.jp                                                  |
   4   +----------------------------------------------------------------------+
   5 */
   6
   7 #ifndef __SWF_MATRIX_H__
   8 #define __SWF_MATRIX_H__
   9
  10 typedef struct swf_matrix_ {
  11     // char align;
  12     unsigned char has_scale:1;
  13     unsigned char scale_bits; //  : 5;
  14     signed long scale_x; // : scale_bits; n.16 fixed point
  15     signed long scale_y; // : scale_bits; n.16 fixed point
  16
  17     unsigned has_rotate : 1;
  18     unsigned rotate_bits; // : 5;
  19     signed long rotate_skew0; // : rotate_bits; n.16 fixed point
  20     signed long rotate_skew1; // : rotate_bits; n.16 fixed point
  21
  22     unsigned translate_bits; // : f_rotate_bits;
  23     signed translate_x;      // : f_rotate_bits;
  24     signed translate_y;      // : f_rotate_bits;
  25 } swf_matrix_t;
  26
  27 extern int swf_matrix_parse(bitstream_t *bs, swf_matrix_t *matrix);
  28 extern int swf_matrix_build(bitstream_t *bs, swf_matrix_t *matrix);
  29 extern int swf_matrix_print(swf_matrix_t *matrix, int indent_depth);
  30
  31 extern int swf_matrix_apply_factor(swf_matrix_t *matrix,
  32                                    double scale_x, double scale_y,
  33                                    double rotate_rad,
  34                                    signed int trans_x, signed int trans_y);
  35
  36 #endif /* __SWF_MATRIX_H__ */