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-rw-r--r--include/drm/drm_rect.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/drm/drm_rect.h b/include/drm/drm_rect.h
index 2b7278c..de24f16 100644
--- a/include/drm/drm_rect.h
+++ b/include/drm/drm_rect.h
@@ -128,5 +128,17 @@ bool drm_rect_intersect(struct drm_rect *r, const struct drm_rect *clip);
bool drm_rect_clip_scaled(struct drm_rect *src, struct drm_rect *dst,
const struct drm_rect *clip,
int hscale, int vscale);
+int drm_rect_calc_hscale(const struct drm_rect *src,
+ const struct drm_rect *dst,
+ int min_hscale, int max_hscale);
+int drm_rect_calc_vscale(const struct drm_rect *src,
+ const struct drm_rect *dst,
+ int min_vscale, int max_vscale);
+int drm_rect_calc_hscale_relaxed(struct drm_rect *src,
+ struct drm_rect *dst,
+ int min_hscale, int max_hscale);
+int drm_rect_calc_vscale_relaxed(struct drm_rect *src,
+ struct drm_rect *dst,
+ int min_vscale, int max_vscale);
#endif
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