guicast/rotateframe.h

   1 #ifndef ROTATEFRAME_H
   2 #define ROTATEFRAME_H
   3
   4 #include "condition.inc"
   5 #include "thread.h"
   6 #include "vframe.inc"
   7
   8 class RotateEngine;
   9
  10 typedef struct
  11 {
  12         float x, y;
  13 } SourceCoord;
  14
  15 class RotateFrame
  16 {
  17 public:
  18         RotateFrame(int cpus, int width, int height);
  19         ~RotateFrame();
  20
  21         void rotate(VFrame *output, VFrame *input, double angle, int interpolate);
  22         int rotate_rightangle(VFrame *input,
  23                 VFrame *output,
  24                 int angle);
  25         int rotate_obliqueangle(VFrame *input,
  26                 VFrame *output,
  27                 double angle,
  28                 int interpolate);
  29         int get_rightdimensions(VFrame *frame,
  30                 int &diameter,
  31                 int &in_x1,
  32                 int &in_y1,
  33                 int &in_x2,
  34                 int &in_y2,
  35                 int &out_x1,
  36                 int &out_y1,
  37                 int &out_x2,
  38                 int &out_y2);
  39
  40         int cpus;
  41         RotateEngine **engine;
  42 // Matrix of source pixel offsets
  43         int *int_matrix, **int_rows;
  44 // Interpolation uses input coordinates for each output coordinate.
  45         SourceCoord *float_matrix, **float_rows;
  46         VFrame *output, *input;
  47         int interpolate;
  48         int last_interpolate;
  49 // Compare new angle with old angle
  50         double last_angle;
  51         double angle;
  52 };
  53
  54
  55 class RotateEngine : public Thread
  56 {
  57 public:
  58         RotateEngine(RotateFrame *plugin, int row1, int row2);
  59         ~RotateEngine();
  60
  61         int generate_matrix(int interpolate);
  62         int perform_rotation(VFrame *input,
  63                 VFrame *output,
  64                 int interpolate);
  65         int wait_completion();
  66         int create_matrix();
  67         int coords_to_pixel(int &input_y, int &input_x);
  68         int coords_to_pixel(SourceCoord &float_pixel, float &input_y, float &input_x);
  69         int perform_rotation();
  70         void run();
  71
  72         int row1, row2;
  73         int interpolate;
  74         int do_matrix, do_rotation;
  75         int done;
  76         RotateFrame *plugin;
  77         Condition *input_lock;
  78         Condition *output_lock;
  79         VFrame *output;
  80         VFrame *input;
  81 };
  82
  83 #endif