diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/api.texi | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/doc/api.texi b/doc/api.texi index 9620f87..a158795 100644 --- a/doc/api.texi +++ b/doc/api.texi @@ -1048,6 +1048,45 @@ Clear the rendering target @var{renderer} with the current drawing color. Display @var{renderer}. @end deffn +@deffn {Procedure} renderer-integer-scale renderer +Returns @code{#t} if @var{renderer} currently uses integer scaling and +@code{#f} otherwise. Integer scaling can be used together with +logical size to effectively restrict the drawing region to an area +even if the window is larger than that. +@end deffn + +@deffn {Procedure} set-renderer-integer-scale! renderer enable? +If @var{enable?} is @code{#t}, enable integer scaling, otherwise +disable it. +@end deffn + +@deffn {Procedure} renderer-logical-size renderer +Return the current logical size used by @var{renderer}. +@end deffn + +@deffn {Procedure} set-renderer-logical-size! renderer width height +Set the logical size of @var{renderer} to @var{width} x @var{height}. +@end deffn + +@deffn {Procedure} renderer-scale renderer +Return the scaling factors @code{(X Y)} used by @var{renderer} to +scale coordinates. +@end deffn + +@deffn {Procedure} set-renderer-scale! renderer scale-x scale-y +Set the factors by which @var{renderer} scales coordinates according +to the scaling factors @var{scale-x} and @var{scale-y}. +@end deffn + +@deffn {Procedure} renderer-viewport renderer +Return the rectangle that @var{renderer} currently draws on. If the +entire region is used, all values of that rectangle will be 0. +@end deffn + +@deffn {Procedure} set-renderer-viewport! renderer rect +Set the drawing area for @var{renderer} to @var{rect}. +@end deffn + @deffn {Procedure} render-copy renderer @ texture @ [#:angle 0] @ |