Add hostgraphics classes required for ImageReader

Bug: 117921091
Test: all tests should pass
Change-Id: I5d60a1177d43eb8dec08403cf34936007b8a267f
(cherry picked from commit c1409f44f82313902a690fb257ee271dc16385a0)

1 files changed, 69 insertions, 0 deletions

diff --git a/libs/hostgraphics/HostBufferQueue.cpp b/libs/hostgraphics/HostBufferQueue.cpp
new file mode 100644
index 000000000000..ec304378c6c4
--- /dev/null
+++ b/libs/hostgraphics/HostBufferQueue.cpp
@@ -0,0 +1,69 @@
+/*
+ * 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.
+ */
+
+#include <gui/BufferQueue.h>
+
+namespace android {
+
+class HostBufferQueue : public IGraphicBufferProducer, public IGraphicBufferConsumer {
+public:
+    HostBufferQueue() : mWidth(0), mHeight(0) { }
+
+    virtual status_t setConsumerIsProtected(bool isProtected) { return OK; }
+
+    virtual status_t detachBuffer(int slot) { return OK; }
+
+    virtual status_t getReleasedBuffers(uint64_t* slotMask) { return OK; }
+
+    virtual status_t setDefaultBufferSize(uint32_t w, uint32_t h) {
+        mWidth = w;
+        mHeight = h;
+        mBuffer = sp<GraphicBuffer>(new GraphicBuffer(mWidth, mHeight));
+        return OK;
+    }
+
+    virtual status_t setDefaultBufferFormat(PixelFormat defaultFormat) { return OK; }
+
+    virtual status_t setDefaultBufferDataSpace(android_dataspace defaultDataSpace) { return OK; }
+
+    virtual status_t discardFreeBuffers() { return OK; }
+
+    virtual status_t acquireBuffer(BufferItem* buffer, nsecs_t presentWhen,
+                                       uint64_t maxFrameNumber = 0) {
+        buffer->mGraphicBuffer = mBuffer;
+        buffer->mSlot = 0;
+        return OK;
+    }
+
+    virtual status_t setMaxAcquiredBufferCount(int maxAcquiredBuffers) { return OK; }
+
+    virtual status_t setConsumerUsageBits(uint64_t usage) { return OK; }
+private:
+    sp<GraphicBuffer> mBuffer;
+    uint32_t mWidth;
+    uint32_t mHeight;
+};
+
+void BufferQueue::createBufferQueue(sp<IGraphicBufferProducer>* outProducer,
+        sp<IGraphicBufferConsumer>* outConsumer) {
+
+    sp<HostBufferQueue> obj(new HostBufferQueue());
+
+    *outProducer = obj;
+    *outConsumer = obj;
+}
+
+} // namespace android