add boundary patch utils

1 files changed, 43 insertions, 0 deletions

diff --git a/include/utils/SkMeshUtils.h b/include/utils/SkMeshUtils.h
new file mode 100644
index 0000000..1235485
--- /dev/null
+++ b/include/utils/SkMeshUtils.h
@@ -0,0 +1,43 @@
+#ifndef SkMeshUtils_DEFINED
+#define SkMeshUtils_DEFINED
+
+#include "SkPoint.h"
+#include "SkColor.h"
+
+class SkBitmap;
+class SkCanvas;
+class SkPaint;
+
+class SkMeshIndices {
+public:
+    SkMeshIndices();
+    ~SkMeshIndices();
+    
+    bool init(int texW, int texH, int rows, int cols) {
+        return this->init(NULL, NULL, texW, texH, rows, cols);
+    }
+
+    bool init(SkPoint tex[], uint16_t indices[],
+              int texW, int texH, int rows, int cols);
+
+    size_t          indexCount() const { return fIndexCount; }
+    const uint16_t* indices() const { return fIndices; }
+
+    size_t          texCount() const { return fTexCount; }
+    const SkPoint*  tex() const { return fTex; }
+
+private:
+    size_t      fIndexCount, fTexCount;
+    SkPoint*    fTex;
+    uint16_t*   fIndices;
+    void*       fStorage; // may be null
+};
+
+class SkMeshUtils {
+public:
+    static void Draw(SkCanvas*, const SkBitmap&, int rows, int cols,
+                     const SkPoint verts[], const SkColor colors[],
+                     const SkPaint& paint);
+};
+
+#endif