Initial commit

android/filament-android/src/main/cpp/IndexBuffer.cpp

@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2017 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 <jni.h>
+
+#include <functional>
+#include <stdlib.h>
+#include <string.h>
+
+#include <filament/IndexBuffer.h>
+
+#include "CallbackUtils.h"
+#include "NioUtils.h"
+
+using namespace filament;
+using namespace driver;
+
+extern "C" JNIEXPORT jlong JNICALL
+Java_com_google_android_filament_IndexBuffer_nCreateBuilder(JNIEnv *env, jclass type) {
+    return (jlong) new IndexBuffer::Builder();
+}
+
+extern "C" JNIEXPORT void JNICALL
+Java_com_google_android_filament_IndexBuffer_nDestroyBuilder(JNIEnv *env, jclass type,
+        jlong nativeBuilder) {
+    IndexBuffer::Builder* builder = (IndexBuffer::Builder *) nativeBuilder;
+    delete builder;
+}
+
+extern "C" JNIEXPORT void JNICALL
+Java_com_google_android_filament_IndexBuffer_nBuilderIndexCount(JNIEnv *env, jclass type,
+        jlong nativeBuilder, jint indexCount) {
+    IndexBuffer::Builder* builder = (IndexBuffer::Builder *) nativeBuilder;
+    builder->indexCount((uint32_t) indexCount);
+}
+
+extern "C" JNIEXPORT void JNICALL
+Java_com_google_android_filament_IndexBuffer_nBuilderBufferType(JNIEnv *env, jclass type,
+        jlong nativeBuilder, jint indexType) {
+    using IndexType = IndexBuffer::IndexType;
+    IndexBuffer::Builder* builder = (IndexBuffer::Builder *) nativeBuilder;
+    IndexType types[] = {IndexType::USHORT, IndexType::UINT};
+    builder->bufferType(types[indexType & 1]);
+}
+
+extern "C" JNIEXPORT jlong JNICALL
+Java_com_google_android_filament_IndexBuffer_nBuilderBuild(JNIEnv *env, jclass type,
+        jlong nativeBuilder, jlong nativeEngine) {
+    IndexBuffer::Builder* builder = (IndexBuffer::Builder *) nativeBuilder;
+    Engine *engine = (Engine *) nativeEngine;
+    return (jlong) builder->build(*engine);
+}
+
+extern "C" JNIEXPORT jint JNICALL
+Java_com_google_android_filament_IndexBuffer_nGetIndexCount(JNIEnv *env, jclass type,
+        jlong nativeIndexBuffer) {
+    IndexBuffer *indexBuffer = (IndexBuffer *) nativeIndexBuffer;
+    return (jint) indexBuffer->getIndexCount();
+}
+
+extern "C" JNIEXPORT int JNICALL
+Java_com_google_android_filament_IndexBuffer_nSetBuffer(JNIEnv *env, jclass type,
+        jlong nativeIndexBuffer, jlong nativeEngine, jobject buffer, int remaining,
+        jint destOffsetInBytes, jint count,
+        jobject handler, jobject runnable) {
+    IndexBuffer *indexBuffer = (IndexBuffer *) nativeIndexBuffer;
+    Engine *engine = (Engine *) nativeEngine;
+
+    AutoBuffer nioBuffer(env, buffer, count);
+    void* data = nioBuffer.getData();
+    size_t sizeInBytes = nioBuffer.getSize();
+    if (sizeInBytes > (remaining << nioBuffer.getShift())) {
+        // BufferOverflowException
+        return -1;
+    }
+
+    auto* callback = JniBufferCallback::make(engine, env, handler, runnable, std::move(nioBuffer));
+
+    BufferDescriptor desc(data, sizeInBytes, &JniBufferCallback::invoke, callback);
+
+    indexBuffer->setBuffer(*engine, std::move(desc),
+            (uint32_t) destOffsetInBytes, (uint32_t) sizeInBytes);
+
+    return 0;
+}