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-rw-r--r--libgrallocusage/GrallocUsageConversion.cpp67
1 files changed, 67 insertions, 0 deletions
diff --git a/libgrallocusage/GrallocUsageConversion.cpp b/libgrallocusage/GrallocUsageConversion.cpp
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index 000000000..05c8ec44f
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+++ b/libgrallocusage/GrallocUsageConversion.cpp
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+/*
+ * Copyright 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 <grallocusage/GrallocUsageConversion.h>
+
+#include <hardware/gralloc.h>
+#include <hardware/gralloc1.h>
+
+void android_convertGralloc0To1Usage(int32_t usage, uint64_t* producerUsage,
+ uint64_t* consumerUsage) {
+ constexpr uint64_t PRODUCER_MASK =
+ GRALLOC1_PRODUCER_USAGE_CPU_READ |
+ /* GRALLOC1_PRODUCER_USAGE_CPU_READ_OFTEN | */
+ GRALLOC1_PRODUCER_USAGE_CPU_WRITE |
+ /* GRALLOC1_PRODUCER_USAGE_CPU_WRITE_OFTEN | */
+ GRALLOC1_PRODUCER_USAGE_GPU_RENDER_TARGET | GRALLOC1_PRODUCER_USAGE_PROTECTED |
+ GRALLOC1_PRODUCER_USAGE_CAMERA | GRALLOC1_PRODUCER_USAGE_VIDEO_DECODER |
+ GRALLOC1_PRODUCER_USAGE_SENSOR_DIRECT_DATA;
+ constexpr uint64_t CONSUMER_MASK =
+ GRALLOC1_CONSUMER_USAGE_CPU_READ |
+ /* GRALLOC1_CONSUMER_USAGE_CPU_READ_OFTEN | */
+ GRALLOC1_CONSUMER_USAGE_GPU_TEXTURE | GRALLOC1_CONSUMER_USAGE_HWCOMPOSER |
+ GRALLOC1_CONSUMER_USAGE_CLIENT_TARGET | GRALLOC1_CONSUMER_USAGE_CURSOR |
+ GRALLOC1_CONSUMER_USAGE_VIDEO_ENCODER | GRALLOC1_CONSUMER_USAGE_CAMERA |
+ GRALLOC1_CONSUMER_USAGE_RENDERSCRIPT | GRALLOC1_CONSUMER_USAGE_GPU_DATA_BUFFER;
+ *producerUsage = static_cast<uint64_t>(usage) & PRODUCER_MASK;
+ *consumerUsage = static_cast<uint64_t>(usage) & CONSUMER_MASK;
+ if ((static_cast<uint32_t>(usage) & GRALLOC_USAGE_SW_READ_OFTEN) == GRALLOC_USAGE_SW_READ_OFTEN) {
+ *producerUsage |= GRALLOC1_PRODUCER_USAGE_CPU_READ_OFTEN;
+ *consumerUsage |= GRALLOC1_CONSUMER_USAGE_CPU_READ_OFTEN;
+ }
+ if ((static_cast<uint32_t>(usage) & GRALLOC_USAGE_SW_WRITE_OFTEN) ==
+ GRALLOC_USAGE_SW_WRITE_OFTEN) {
+ *producerUsage |= GRALLOC1_PRODUCER_USAGE_CPU_WRITE_OFTEN;
+ }
+}
+
+int32_t android_convertGralloc1To0Usage(uint64_t producerUsage, uint64_t consumerUsage) {
+ static_assert(uint64_t(GRALLOC1_CONSUMER_USAGE_CPU_READ_OFTEN) ==
+ uint64_t(GRALLOC1_PRODUCER_USAGE_CPU_READ_OFTEN),
+ "expected ConsumerUsage and ProducerUsage CPU_READ_OFTEN bits to match");
+ uint64_t merged = producerUsage | consumerUsage;
+ if ((merged & (GRALLOC1_CONSUMER_USAGE_CPU_READ_OFTEN)) ==
+ GRALLOC1_CONSUMER_USAGE_CPU_READ_OFTEN) {
+ merged &= ~uint64_t(GRALLOC1_CONSUMER_USAGE_CPU_READ_OFTEN);
+ merged |= GRALLOC_USAGE_SW_READ_OFTEN;
+ }
+ if ((merged & (GRALLOC1_PRODUCER_USAGE_CPU_WRITE_OFTEN)) ==
+ GRALLOC1_PRODUCER_USAGE_CPU_WRITE_OFTEN) {
+ merged &= ~uint64_t(GRALLOC1_PRODUCER_USAGE_CPU_WRITE_OFTEN);
+ merged |= GRALLOC_USAGE_SW_WRITE_OFTEN;
+ }
+ return static_cast<int32_t>(merged);
+}