Consolidate bounding box operations

1 files changed, 17 insertions, 0 deletions

diff --git a/libass/ass_outline.h b/libass/ass_outline.h
index c6989f7..6be0211 100644
--- a/libass/ass_outline.h
+++ b/libass/ass_outline.h
@@ -24,6 +24,8 @@
 #include <stdbool.h>
 #include <stdint.h>
 
+#include "ass_utils.h"
+
 
 typedef struct {
     int32_t x, y;
@@ -41,6 +43,21 @@ typedef struct {
     double x_min, y_min, x_max, y_max;
 } ASS_DRect;
 
+static inline void rectangle_reset(ASS_Rect *rect)
+{
+    rect->x_min = rect->y_min = INT32_MAX;
+    rect->x_max = rect->y_max = INT32_MIN;
+}
+
+static inline void rectangle_update(ASS_Rect *rect,
+    int32_t x_min, int32_t y_min, int32_t x_max, int32_t y_max)
+{
+    rect->x_min = FFMIN(rect->x_min, x_min);
+    rect->y_min = FFMIN(rect->y_min, y_min);
+    rect->x_max = FFMAX(rect->x_max, x_max);
+    rect->y_max = FFMAX(rect->y_max, y_max);
+}
+
 /*
  * Outline represented with array of points and array of segments.
  * Segment here is spline of order 1 (line), 2 (quadratic) or 3 (cubic).