static void android_view_GLES20Canvas_setMatrix(JNIEnv* env, jobject clazz, jlong rendererPtr, jlong matrixPtr) { DisplayListRenderer* renderer = reinterpret_cast<DisplayListRenderer*>(rendererPtr); SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr); renderer->setMatrix(matrix ? *matrix : SkMatrix::I()); }