Multiplies a matrix within an object structure by an external 4×4 matrix of 16.16 values.

void MulObjectMat44_F16( void *objectlist[],ObjOffset2 *offsetstruct, mat44f16 mat, int32 count )

This function multiplies a matrix within object structures by an external 4×4 matrix of 16.16 fractions, and repeats over a number of objects. The results of the product are deposited in the destination matrix in each object structure pointed to by the objectlist array.

The object structure argument defines offsets within objects to the elements to be manipulated. The definition for ObjOffset2 is as follows:

typedef struct ObjOffset2 {int32 oo2_DestMatOffset; int32 oo2_SrcMatOffset;} ObjOffset2;

• oo2_DestMatOffset is the offset (in bytes) from the beginning of an object structure to where to write the result of the matrix multiply.
• oo2_SrcMatOffset is the offset (in bytes) from the beginning of an object structure to the location of the matrix to be multiplied.

• objectlist An array of pointers to object structures to modify.

• offsetstruct A pointer to the source object structure that defines offsets within object's to the elements to be multiplied.

• mat A 4×4 matrix of 16.16 fractions to be multiplied.

• count The number of vectors for the multiplication.

SWI implemented in operamath V20.

operamath.h

MulObjectMat33_F16()