renderscript geometry converter.

Initial implementation of the converted from .obj and .dae file to the renderscript file format.

Change-Id: I47f4ecf0fb68515914b660dd3d548afa1920d79c

tools/a3dconvert/a3dconvert.cpp

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <iostream>
+#include <vector>
+
+#include "ColladaLoader.h"
+#include "ObjLoader.h"
+
+int main (int argc, char * const argv[]) {
+    const char *objExt = ".obj";
+    const char *daeExt = ".dae";
+
+    if(argc != 3) {
+        printf("-----------------------------------------------------------------\n");
+        printf("Usage:\n");
+        printf("a3dconvert input_file a3d_output_file\n");
+        printf("Currently .obj and .dae (collada) input files are accepted\n");
+        printf("-----------------------------------------------------------------\n");
+        return 1;
+    }
+
+    bool isSuccessful = false;
+
+    std::string filename = argv[1];
+    size_t dotPos = filename.find_last_of('.');
+    if (dotPos == std::string::npos) {
+        printf("Invalid input. Currently .obj and .dae (collada) input files are accepted\n");
+        return 1;
+    }
+
+    std::string ext = filename.substr(dotPos);
+    if (ext == daeExt) {
+        ColladaLoader converter;
+        isSuccessful = converter.init(argv[1]);
+        if (isSuccessful) {
+            isSuccessful = converter.convertToA3D(argv[2]);
+        }
+    } else if (ext == objExt) {
+        ObjLoader objConv;
+        isSuccessful = objConv.init(argv[1]);
+        if (isSuccessful) {
+            isSuccessful = objConv.convertToA3D(argv[2]);
+        }
+    } else {
+        printf("Invalid input. Currently .obj and .dae (collada) input files are accepted\n");
+        return 1;
+    }
+
+    if(isSuccessful) {
+        printf("---All done---\n");
+    } else {
+        printf("---Encountered errors, conversion failed---\n");
+    }
+
+    return isSuccessful ? 0 : 1;
+}