ViewRootImpl: Add USE_BLAST flag.
Add support for ViewRootImpl submitting buffers using
BLAST and put this support behind a disabled-by-default
FLAG.
Bug: 135786080
Change-Id: Ia3f205e34db9f9aa574c9c2e2c499dd3046af220
diff --git a/core/jni/android_graphics_BLASTBufferQueue.cpp b/core/jni/android_graphics_BLASTBufferQueue.cpp
new file mode 100644
index 0000000..185e581
--- /dev/null
+++ b/core/jni/android_graphics_BLASTBufferQueue.cpp
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+
+#define LOG_TAG "BLASTBufferQueue"
+
+#include <nativehelper/JNIHelp.h>
+
+#include <android_runtime/AndroidRuntime.h>
+#include <android_runtime/android_view_Surface.h>
+#include <utils/Log.h>
+#include <utils/RefBase.h>
+
+#include <gui/BLASTBufferQueue.h>
+#include <gui/Surface.h>
+#include <gui/SurfaceComposerClient.h>
+
+namespace android {
+
+static jlong nativeCreate(JNIEnv* env, jclass clazz, jlong surfaceControl, jlong width, jlong height) {
+ sp<BLASTBufferQueue> queue = new BLASTBufferQueue(
+ reinterpret_cast<SurfaceControl*>(surfaceControl), width, height);
+ queue->incStrong((void*)nativeCreate);
+ return reinterpret_cast<jlong>(queue.get());
+}
+
+static void nativeDestroy(JNIEnv* env, jclass clazz, jlong ptr) {
+ sp<BLASTBufferQueue> queue = reinterpret_cast<BLASTBufferQueue*>(ptr);
+ queue->decStrong((void*)nativeCreate);
+}
+
+static jobject nativeGetSurface(JNIEnv* env, jclass clazz, jlong ptr) {
+ sp<BLASTBufferQueue> queue = reinterpret_cast<BLASTBufferQueue*>(ptr);
+ return android_view_Surface_createFromIGraphicBufferProducer(env, queue->getIGraphicBufferProducer());
+}
+
+static void nativeSetNextTransaction(JNIEnv* env, jclass clazz, jlong ptr, jlong transactionPtr) {
+ sp<BLASTBufferQueue> queue = reinterpret_cast<BLASTBufferQueue*>(ptr);
+ auto transaction = reinterpret_cast<SurfaceComposerClient::Transaction*>(transactionPtr);
+ queue->setNextTransaction(transaction);
+}
+
+static void nativeUpdate(JNIEnv*env, jclass clazz, jlong ptr, jlong surfaceControl, jlong width, jlong height) {
+ sp<BLASTBufferQueue> queue = reinterpret_cast<BLASTBufferQueue*>(ptr);
+ queue->update(reinterpret_cast<SurfaceControl*>(surfaceControl), width, height);
+}
+
+static const JNINativeMethod gMethods[] = {
+ /* name, signature, funcPtr */
+ { "nativeCreate", "(JJJ)J",
+ (void*)nativeCreate },
+ { "nativeGetSurface", "(J)Landroid/view/Surface;",
+ (void*)nativeGetSurface },
+ { "nativeDestroy", "(J)V",
+ (void*)nativeDestroy },
+ { "nativeSetNextTransaction", "(JJ)V",
+ (void*)nativeSetNextTransaction },
+ { "nativeUpdate", "(JJJJ)V",
+ (void*)nativeUpdate }
+};
+
+int register_android_graphics_BLASTBufferQueue(JNIEnv* env) {
+ int res = jniRegisterNativeMethods(env, "android/graphics/BLASTBufferQueue",
+ gMethods, NELEM(gMethods));
+ LOG_ALWAYS_FATAL_IF(res < 0, "Unable to register native methods.");
+
+ return 0;
+}
+
+} // namespace android