1 files changed, 125 insertions, 0 deletions
diff --git a/libs/gui/BatchBufferOps.cpp b/libs/gui/BatchBufferOps.cpp
new file mode 100644
index 0000000000..60aceb1bbd
--- /dev/null
+++ b/libs/gui/BatchBufferOps.cpp
@@ -0,0 +1,125 @@
+/*
+ * Copyright 2021 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 <inttypes.h>
+
+#define LOG_TAG "IGBPBatchOps"
+#define ATRACE_TAG ATRACE_TAG_GRAPHICS
+//#define LOG_NDEBUG 0
+
+#include <gui/IGraphicBufferProducer.h>
+
+namespace android {
+
+/**
+ * Default implementation of batched buffer operations. These default
+ * implementations call into the non-batched version of the same operation.
+ */
+
+status_t IGraphicBufferProducer::requestBuffers(
+        const std::vector<int32_t>& slots,
+        std::vector<RequestBufferOutput>* outputs) {
+    outputs->clear();
+    outputs->reserve(slots.size());
+    for (int32_t slot : slots) {
+        RequestBufferOutput& output = outputs->emplace_back();
+        output.result = requestBuffer(static_cast<int>(slot),
+                                      &output.buffer);
+    }
+    return NO_ERROR;
+}
+
+status_t IGraphicBufferProducer::dequeueBuffers(
+        const std::vector<DequeueBufferInput>& inputs,
+        std::vector<DequeueBufferOutput>* outputs) {
+    outputs->clear();
+    outputs->reserve(inputs.size());
+    for (const DequeueBufferInput& input : inputs) {
+        DequeueBufferOutput& output = outputs->emplace_back();
+        output.result = dequeueBuffer(
+                &output.slot,
+                &output.fence,
+                input.width,
+                input.height,
+                input.format,
+                input.usage,
+                &output.bufferAge,
+                input.getTimestamps ? &output.timestamps.emplace() : nullptr);
+    }
+    return NO_ERROR;
+}
+
+status_t IGraphicBufferProducer::detachBuffers(
+        const std::vector<int32_t>& slots,
+        std::vector<status_t>* results) {
+    results->clear();
+    results->reserve(slots.size());
+    for (int32_t slot : slots) {
+        results->emplace_back(detachBuffer(slot));
+    }
+    return NO_ERROR;
+}
+
+status_t IGraphicBufferProducer::attachBuffers(
+        const std::vector<sp<GraphicBuffer>>& buffers,
+        std::vector<AttachBufferOutput>* outputs) {
+    outputs->clear();
+    outputs->reserve(buffers.size());
+    for (const sp<GraphicBuffer>& buffer : buffers) {
+        AttachBufferOutput& output = outputs->emplace_back();
+        output.result = attachBuffer(&output.slot, buffer);
+    }
+    return NO_ERROR;
+}
+
+status_t IGraphicBufferProducer::queueBuffers(
+        const std::vector<QueueBufferInput>& inputs,
+        std::vector<QueueBufferOutput>* outputs) {
+    outputs->clear();
+    outputs->reserve(inputs.size());
+    for (const QueueBufferInput& input : inputs) {
+        QueueBufferOutput& output = outputs->emplace_back();
+        output.result = queueBuffer(input.slot, input, &output);
+    }
+    return NO_ERROR;
+}
+
+status_t IGraphicBufferProducer::cancelBuffers(
+        const std::vector<CancelBufferInput>& inputs,
+        std::vector<status_t>* results) {
+    results->clear();
+    results->reserve(inputs.size());
+    for (const CancelBufferInput& input : inputs) {
+        results->emplace_back() = cancelBuffer(input.slot, input.fence);
+    }
+    return NO_ERROR;
+}
+
+status_t IGraphicBufferProducer::query(const std::vector<int32_t> inputs,
+                                       std::vector<QueryOutput>* outputs) {
+    outputs->clear();
+    outputs->reserve(inputs.size());
+    for (int32_t input : inputs) {
+        QueryOutput& output = outputs->emplace_back();
+        int value{};
+        output.result = static_cast<status_t>(
+                query(static_cast<int>(input), &value));
+        output.value = static_cast<int64_t>(value);
+    }
+    return NO_ERROR;
+}
+
+} // namespace android