graphics: Add composer 2.3
The 2.3 interface adds IComposerClient.getDisplayIdentificationData,
which enables display identification for generalized multi-display
support.
Bug: 74619554
Test: VtsHalGraphicsComposerV2_3TargetTest
Change-Id: I303e722ce938fe0af4fc77da812e3525d8c90251
diff --git a/graphics/composer/2.3/utils/passthrough/Android.bp b/graphics/composer/2.3/utils/passthrough/Android.bp
new file mode 100644
index 0000000..3ae6b16
--- /dev/null
+++ b/graphics/composer/2.3/utils/passthrough/Android.bp
@@ -0,0 +1,30 @@
+//
+// Copyright (C) 2018 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.
+//
+
+cc_library_headers {
+ name: "android.hardware.graphics.composer@2.3-passthrough",
+ defaults: ["hidl_defaults"],
+ vendor: true,
+ header_libs: [
+ "android.hardware.graphics.composer@2.2-passthrough",
+ "android.hardware.graphics.composer@2.3-hal",
+ ],
+ export_header_lib_headers: [
+ "android.hardware.graphics.composer@2.2-passthrough",
+ "android.hardware.graphics.composer@2.3-hal",
+ ],
+ export_include_dirs: ["include"],
+}
diff --git a/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcHal.h b/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcHal.h
new file mode 100644
index 0000000..53f2d1b
--- /dev/null
+++ b/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcHal.h
@@ -0,0 +1,99 @@
+/*
+ * Copyright 2018 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.
+ */
+
+#pragma once
+
+#ifndef LOG_TAG
+#warning "HwcHal.h included without LOG_TAG"
+#endif
+
+#include <type_traits>
+
+#include <composer-hal/2.3/ComposerHal.h>
+#include <composer-passthrough/2.2/HwcHal.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace composer {
+namespace V2_3 {
+namespace passthrough {
+
+namespace detail {
+
+using V2_1::Display;
+using V2_1::Error;
+
+// HwcHalImpl implements V2_*::hal::ComposerHal on top of hwcomposer2
+template <typename Hal>
+class HwcHalImpl : public V2_2::passthrough::detail::HwcHalImpl<Hal> {
+ public:
+ Error getDisplayIdentificationData(Display display, uint8_t* outPort,
+ std::vector<uint8_t>* outData) override {
+ if (!mDispatch.getDisplayIdentificationData) {
+ return Error::UNSUPPORTED;
+ }
+
+ uint32_t size = 0;
+ int32_t error =
+ mDispatch.getDisplayIdentificationData(mDevice, display, outPort, &size, nullptr);
+ if (error != HWC2_ERROR_NONE) {
+ return static_cast<Error>(error);
+ }
+
+ std::vector<uint8_t> data(size);
+ error =
+ mDispatch.getDisplayIdentificationData(mDevice, display, outPort, &size, data.data());
+ if (error != HWC2_ERROR_NONE) {
+ return static_cast<Error>(error);
+ }
+
+ data.resize(size);
+ *outData = std::move(data);
+ return Error::NONE;
+ }
+
+ protected:
+ bool initDispatch() override {
+ if (!BaseType2_2::initDispatch()) {
+ return false;
+ }
+
+ this->initOptionalDispatch(HWC2_FUNCTION_GET_DISPLAY_IDENTIFICATION_DATA,
+ &mDispatch.getDisplayIdentificationData);
+ return true;
+ }
+
+ private:
+ struct {
+ HWC2_PFN_GET_DISPLAY_IDENTIFICATION_DATA getDisplayIdentificationData;
+ } mDispatch = {};
+
+ using BaseType2_2 = V2_2::passthrough::detail::HwcHalImpl<Hal>;
+ using BaseType2_1 = V2_1::passthrough::detail::HwcHalImpl<Hal>;
+ using BaseType2_1::mDevice;
+};
+
+} // namespace detail
+
+using HwcHal = detail::HwcHalImpl<hal::ComposerHal>;
+
+} // namespace passthrough
+} // namespace V2_3
+} // namespace composer
+} // namespace graphics
+} // namespace hardware
+} // namespace android
diff --git a/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcLoader.h b/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcLoader.h
new file mode 100644
index 0000000..afef475
--- /dev/null
+++ b/graphics/composer/2.3/utils/passthrough/include/composer-passthrough/2.3/HwcLoader.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2018 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.
+ */
+
+#pragma once
+
+#ifndef LOG_TAG
+#warning "HwcLoader.h included without LOG_TAG"
+#endif
+
+#include <composer-hal/2.3/Composer.h>
+#include <composer-hal/2.3/ComposerHal.h>
+#include <composer-passthrough/2.2/HwcLoader.h>
+#include <composer-passthrough/2.3/HwcHal.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace composer {
+namespace V2_3 {
+namespace passthrough {
+
+class HwcLoader : public V2_2::passthrough::HwcLoader {
+ public:
+ static IComposer* load() {
+ const hw_module_t* module = loadModule();
+ if (!module) {
+ return nullptr;
+ }
+
+ auto hal = createHalWithAdapter(module);
+ if (!hal) {
+ return nullptr;
+ }
+
+ return createComposer(std::move(hal)).release();
+ }
+
+ // create a ComposerHal instance
+ static std::unique_ptr<hal::ComposerHal> createHal(const hw_module_t* module) {
+ auto hal = std::make_unique<HwcHal>();
+ return hal->initWithModule(module) ? std::move(hal) : nullptr;
+ }
+
+ // create a ComposerHal instance, insert an adapter if necessary
+ static std::unique_ptr<hal::ComposerHal> createHalWithAdapter(const hw_module_t* module) {
+ bool adapted;
+ hwc2_device_t* device = openDeviceWithAdapter(module, &adapted);
+ if (!device) {
+ return nullptr;
+ }
+ auto hal = std::make_unique<HwcHal>();
+ return hal->initWithDevice(std::move(device), !adapted) ? std::move(hal) : nullptr;
+ }
+
+ // create an IComposer instance
+ static std::unique_ptr<IComposer> createComposer(std::unique_ptr<hal::ComposerHal> hal) {
+ return hal::Composer::create(std::move(hal));
+ }
+};
+
+} // namespace passthrough
+} // namespace V2_3
+} // namespace composer
+} // namespace graphics
+} // namespace hardware
+} // namespace android