[Freetype] questions about combination of rotation and italic

[wjjdtvout]

 

 see following code as an example

 

 FT_Matrix    italic_matrix,matrix;

 

 italic_matrix.xx = 0x10000;
 italic_matrix.yx = 0x00000;
 italic_matrix.xy = 0x06000;
 italic_matrix.yy = 0x10000;

 

 if(italic)
 {
  SetRotationMatrix(RotateAngle,&matrix);
  FT_Matrix_Multiply(&italic_matrix,&matrix);
 }

 FT_Set_Transform( face, &matrix, &pen );

 

 

    Just multiply the matrixes do not return a corrcet value in advance!!!!

    If RotateAngle is 45 degree, only 35 degree can be seen on the screen with italic mode.

    How to combined rotation and italic correctly in matrix?

 

Regard

Wang JiangJiang