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 // angle is 0 - 360
  22         void rotate(VFrame *output,
  23                 VFrame *input,
  24                 double angle,
  25                 int interpolate);
  26         int rotate_rightangle(VFrame *input,
  27                 VFrame *output,
  28                 int angle);
  29         int rotate_obliqueangle(VFrame *input,
  30                 VFrame *output,
  31                 double angle,
  32                 int interpolate);
  33         int get_rightdimensions(VFrame *frame,
  34                 int &diameter,
  35                 int &in_x1,
  36                 int &in_y1,
  37                 int &in_x2,
  38                 int &in_y2,
  39                 int &out_x1,
  40                 int &out_y1,
  41                 int &out_x2,
  42                 int &out_y2);
  43
  44         int cpus;
  45         RotateEngine **engine;
  46 // Matrix of source pixel offsets
  47         int *int_matrix, **int_rows;
  48 // Interpolation uses input coordinates for each output coordinate.
  49         SourceCoord *float_matrix, **float_rows;
  50         VFrame *output, *input;
  51         int interpolate;
  52         int last_interpolate;
  53 // Compare new angle with old angle
  54         double last_angle;
  55         double angle;
  56 };
  57
  58
  59 class RotateEngine : public Thread
  60 {
  61 public:
  62         RotateEngine(RotateFrame *plugin, int row1, int row2);
  63         ~RotateEngine();
  64
  65         int generate_matrix(int interpolate);
  66         int perform_rotation(VFrame *input,
  67                 VFrame *output,
  68                 int interpolate);
  69         int wait_completion();
  70         int create_matrix();
  71         int coords_to_pixel(int &input_y, int &input_x);
  72         int coords_to_pixel(SourceCoord &float_pixel, float &input_y, float &input_x);
  73         int perform_rotation();
  74         void run();
  75
  76         int row1, row2;
  77         int interpolate;
  78         int do_matrix, do_rotation;
  79         int done;
  80         RotateFrame *plugin;
  81         Condition *input_lock;
  82         Condition *output_lock;
  83         VFrame *output;
  84         VFrame *input;
  85 };
  86
  87 #endif