@ -608,6 +608,24 @@ weston_view_to_global_float(struct weston_view *view,
}
}
/** Transform a point to buffer coordinates
*
* \ param width Surface width .
* \ param height Surface height .
* \ param transform Buffer transform .
* \ param scale Buffer scale .
* \ param sx Surface x coordinate of a point .
* \ param sy Surface y coordinate of a point .
* \ param [ out ] bx Buffer x coordinate of the point .
* \ param [ out ] by Buffer Y coordinate of the point .
*
* Converts the given surface - local coordinates to buffer coordinates
* according to the given buffer transform and scale .
* This ignores wp_viewport .
*
* The given width and height must be the result of inverse scaled and
* inverse transformed buffer size .
*/
WL_EXPORT void
weston_transformed_coord ( int width , int height ,
enum wl_output_transform transform ,
@ -654,6 +672,23 @@ weston_transformed_coord(int width, int height,
* by * = scale ;
}
/** Transform a rectangle to buffer coordinates
*
* \ param width Surface width .
* \ param height Surface height .
* \ param transform Buffer transform .
* \ param scale Buffer scale .
* \ param rect Rectangle in surface coordinates .
* \ return Rectangle in buffer coordinates .
*
* Converts the given surface - local rectangle to buffer coordinates
* according to the given buffer transform and scale . The resulting
* rectangle is guaranteed to be well - formed .
* This ignores wp_viewport .
*
* The given width and height must be the result of inverse scaled and
* inverse transformed buffer size .
*/
WL_EXPORT pixman_box32_t
weston_transformed_rect ( int width , int height ,
enum wl_output_transform transform ,
@ -744,6 +779,24 @@ weston_matrix_transform_region(pixman_region32_t *dest,
free ( dest_rects ) ;
}
/** Transform a region to buffer coordinates
*
* \ param width Surface width .
* \ param height Surface height .
* \ param transform Buffer transform .
* \ param scale Buffer scale .
* \ param [ in ] src Region in surface coordinates .
* \ param [ out ] dest Resulting region in buffer coordinates .
*
* Converts the given surface - local region to buffer coordinates
* according to the given buffer transform and scale .
* This ignores wp_viewport .
*
* The given width and height must be the result of inverse scaled and
* inverse transformed buffer size .
*
* src and dest are allowed to point to the same memory for in - place conversion .
*/
WL_EXPORT void
weston_transformed_region ( int width , int height ,
enum wl_output_transform transform ,