f8c14115ec
Use libdisplay-info to parse display EDID. Wrap the parsing logic in a class to extract specific EDID information. Change-Id: I20376eb96ebcd0073155cedf1e8f055bbf8dfb49 Signed-off-by: Sasha McIntosh <sashamcintosh@google.com>
69 lines
1.7 KiB
C++
69 lines
1.7 KiB
C++
/*
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* Copyright (C) 2025 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#define LOG_TAG "drmhwc"
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#if HAS_LIBDISPLAY_INFO
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extern "C" {
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#include <libdisplay-info/info.h>
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}
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#endif
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#include "drm/DrmUnique.h"
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#include "utils/log.h"
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namespace android {
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// Stub wrapper class for edid parsing
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class EdidWrapper {
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public:
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EdidWrapper() = default;
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EdidWrapper(const EdidWrapper &) = delete;
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virtual ~EdidWrapper() = default;
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};
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#if HAS_LIBDISPLAY_INFO
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// Wrapper class for that uses libdisplay-info to parse edids
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class LibdisplayEdidWrapper final : public EdidWrapper {
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public:
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LibdisplayEdidWrapper() = delete;
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LibdisplayEdidWrapper(di_info *info) : info_(info) {
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}
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~LibdisplayEdidWrapper() override {
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di_info_destroy(info_);
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}
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static auto Create(DrmModePropertyBlobUnique blob)
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-> std::unique_ptr<LibdisplayEdidWrapper> {
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if (!blob)
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return nullptr;
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auto *info = di_info_parse_edid(blob->data, blob->length);
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if (!info) {
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ALOGW("Failed to parse edid blob.");
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return nullptr;
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}
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return std::make_unique<LibdisplayEdidWrapper>(std::move(info));
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}
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private:
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di_info *info_{};
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};
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#endif
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} // namespace android
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