void OpenVG_SVGHandler::optimize() {
if( _batch ) {
vgDestroyBatchMNK( _batch );
_batch = 0;
}
// use the monkvg batch extension to greatly optimize rendering. don't need this for
// other OpenVG implementations
_batch = vgCreateBatchMNK();
vgBeginBatchMNK( _batch );
{ // draw
// clear out the transform stack
_transform_stack.clear();
float m[9];
vgGetMatrix( m );
// assume the current openvg matrix is like the camera matrix and should always be applied first
Transform2d top;
Transform2d::multiply( top, Transform2d(m), rootTransform() ); // multiply by the root transform
pushTransform( top );
// SVG is origin at the top, left (openvg is origin at the bottom, left)
// so need to flip
// Transform2d flip;
// flip.setScale( 1, -1 );
// pushTransform( flip );
draw_recursive( _root_group );
vgLoadMatrix( m ); // restore matrix
_transform_stack.clear();
}
vgEndBatchMNK( _batch );
}
void OpenVG_SVGHandler::dump(void **vertices, size_t *size) {
VGBatchMNK temp;
temp = vgCreateBatchMNK();
vgBeginBatchMNK( temp );
{
// clear the transform stack
_transform_stack.clear();
// save matrix
VGfloat m[9];
vgGetMatrix( m );
// assume the current openvg matrix is like the camera matrix and should always be applied first
Transform2d top;
Transform2d::multiply( top, Transform2d(m), rootTransform() ); // multiply by the root transform
pushTransform( top );
// draw
draw_recursive( _root_group );
// restore matrix
vgLoadMatrix( m );
// clear the transform stack
_transform_stack.clear();
}
vgDumpBatchMNK( temp, vertices, size );
vgEndBatchMNK( temp );
vgDestroyBatchMNK( temp );
}