1 files changed, 40 insertions, 2 deletions
diff --git a/core/jni/android/graphics/Canvas.cpp b/core/jni/android/graphics/Canvas.cpp
index dc72008..e1e9536 100644
--- a/core/jni/android/graphics/Canvas.cpp
+++ b/core/jni/android/graphics/Canvas.cpp
@@ -27,6 +27,9 @@
 #include "SkShader.h"
 #include "SkTemplates.h"
 
+#include "SkBoundaryPatch.h"
+#include "SkMeshUtils.h"
+
 #define TIME_DRAWx
 
 static uint32_t get_thread_msec() {
@@ -861,8 +864,6 @@ public:
         *matrix = canvas->getTotalMatrix();
     }
 };
-    
-///////////////////////////////////////////////////////////////////////////////
 
 static JNINativeMethod gCanvasMethods[] = {
     {"finalizer", "(I)V", (void*) SkCanvasGlue::finalizer},
@@ -965,6 +966,42 @@ static JNINativeMethod gCanvasMethods[] = {
     {"freeCaches", "()V", (void*) SkCanvasGlue::freeCaches}
 };
 
+///////////////////////////////////////////////////////////////////////////////
+
+static void BoundaryPatch_computeCubic(JNIEnv* env, jobject, jfloatArray jpts,
+                                   int texW, int texH, int rows, int cols,
+                                   jfloatArray jverts, jshortArray jidx) {
+    AutoJavaFloatArray ptsArray(env, jpts, 24, kRO_JNIAccess);
+
+    int vertCount = rows * cols;
+    AutoJavaFloatArray vertsArray(env, jverts, vertCount * 4, kRW_JNIAccess);
+    SkPoint* verts = (SkPoint*)vertsArray.ptr();
+    SkPoint* texs = verts + vertCount;
+
+    int idxCount = (rows - 1) * (cols - 1) * 6;
+    AutoJavaShortArray idxArray(env, jidx, idxCount, kRW_JNIAccess);
+    uint16_t* idx = (uint16_t*)idxArray.ptr();  // cast from int16_t*
+
+    SkCubicBoundary cubic;
+    memcpy(cubic.fPts, ptsArray.ptr(), 12 * sizeof(SkPoint));
+
+    SkBoundaryPatch patch;
+    patch.setBoundary(&cubic);
+    // generate our verts
+    patch.evalPatch(verts, rows, cols);
+
+    SkMeshIndices mesh;
+    // generate our texs and idx
+    mesh.init(texs, idx, texW, texH, rows, cols);
+}
+
+static JNINativeMethod gBoundaryPatchMethods[] = {
+    {"nativeComputeCubicPatch", "([FIIII[F[S)V",
+    (void*)BoundaryPatch_computeCubic },
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
 #include <android_runtime/AndroidRuntime.h>
 
 #define REG(env, name, array) \
@@ -976,6 +1013,7 @@ int register_android_graphics_Canvas(JNIEnv* env) {
     int result;
 
     REG(env, "android/graphics/Canvas", gCanvasMethods);
+    REG(env, "android/graphics/utils/BoundaryPatch", gBoundaryPatchMethods);
     
     return result;
 }