1 files changed, 58 insertions, 0 deletions

diff --git a/include/morpher/morphing.h b/include/morpher/morphing.h
new file mode 100644
index 0000000..028cd87
--- /dev/null
+++ b/include/morpher/morphing.h
@@ -0,0 +1,58 @@
+#ifndef UPEM_MORPHING_MORPHING
+#define UPEM_MORPHING_MORPHING
+
+/**
+ * File: morphing.h
+ * Coordinate mapping for morphing transforms.
+ */
+
+#include "common/geom.h"
+#include "common/time.h"
+#include "morpher/trianglemap.h"
+
+/**
+ * Struct: Morphing
+ * Represents an abstract coordinate transform from a source to a destination coordinate matrix,
+ * constrained by a given set of points.
+ *
+ * Fields:
+ *   dim     - dimension in pixels
+ *   *first  - the first triangle in the linked list
+ *   *center - the center triangle
+ */
+typedef struct {
+  CartesianVector dim;
+  TriangleMap *first, *center;
+} Morphing;
+
+/**
+ * Function: morphing_init
+ * Initialises a morphing.
+ *
+ * Parameters:
+ *   width  - coordinate matrix width in pixels
+ *   height - coordinate matrix height in pixels
+ */
+Morphing *morphing_create(IntVector width, IntVector height);
+
+/**
+ * Function: morphing_free
+ * Frees any resources allocated to a morphing.
+ *
+ * Parameters:
+ *   *m - pointer to the morphing to destroy
+ */
+void morphing_destroy(Morphing *m);
+
+/**
+ * Function: morphing_add_constraint
+ * Adds a constraint point to a morphing.
+ *
+ * Parameters:
+ *   *m          - pointer to the morphing to alter
+ *   origin      - constraint point coordinates on the origin matrix
+ *   destination - constraint point coordinates on the target matrix
+ */
+void morphing_add_constraint(Morphing *m, CartesianVector origin, CartesianVector destination);
+
+#endif