src/bz/math/matrix.h

   1 #ifndef BZ_MATH_MATRIX_H
   2 #define BZ_MATH_MATRIX_H
   3
   4 #include <bz/math/vector.h>
   5
   6 #ifdef __cplusplus
   7 extern "C" {
   8 #endif
   9
  10 struct BZMatrix {
  11         float a;
  12         float b;
  13         float c;
  14         float d;
  15         float x;
  16         float y;
  17 };
  18 typedef struct BZMatrix BZMatrix;
  19
  20
  21 extern void bzMatrixSet(BZMatrix *matrixOut, float a, float b, float c, float d, float x, float y);
  22 extern void bzMatrixCopy(BZMatrix *matrixOut, const BZMatrix *matrix);
  23
  24 extern void bzMatrixInverse(BZMatrix *matrixOut, const BZMatrix *matrix);
  25 extern void bzMatrixMultiply(BZMatrix *matrixOut, const BZMatrix *matrix1, const BZMatrix *matrix2);
  26
  27 extern void bzMatrixIdentity(BZMatrix *matrixOut);
  28 extern void bzMatrixRotation(BZMatrix *matrixOut, float angle);
  29 extern void bzMatrixTranslation(BZMatrix *matrixOut, float translateX, float translateY);
  30 extern void bzMatrixScale(BZMatrix *matrixOut, float scaleX, float scaleY);
  31 //extern void bzMatrixTRS(BZMatrix *matrixOut, float translateX, float translateY, float angle, float scaleX, float scaleY);
  32 extern void bzMatrixSRT(BZMatrix *matrixOut, float translateX, float translateY, float angle, float scaleX, float scaleY);
  33 extern void bzMatrixShear(BZMatrix *matrixOut, float shearX, float shearY);
  34 extern void bzMatrixOrtho(BZMatrix *matrixOut, float left, float top, float right, float bottom);
  35
  36 //extern void bzMatrixScaleVector(BZVector *vectorOut, const BZVector *vector, const BZMatrix *matrix); // NB: Expensive
  37 extern void bzMatrixTranslateVector(BZVector *vectorOut, const BZVector *vector, const BZMatrix *matrix);
  38 extern void bzMatrixScaleRotateVector(BZVector *vectorOut, const BZVector *vector, const BZMatrix *matrix);
  39 extern void bzMatrixTransformVector(BZVector *vectorOut, const BZVector *vector, const BZMatrix *matrix);
  40
  41 #ifdef __cplusplus
  42 }
  43 #endif
  44
  45 #endif