Helper function to check if two modes have the same size by comparing the vdisplay and hdisplay of the underlying drmModeModeInfo. Change-Id: Idb1923e6f7ff42d886f9e851e15fdac99af54fb9 Signed-off-by: Drew Davenport <ddavenport@google.com>
48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
/*
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* Copyright (C) 2015 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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#include "DrmMode.h"
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#include <cstring>
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#include "DrmDevice.h"
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namespace android {
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DrmMode::DrmMode(drmModeModeInfoPtr m) : mode_(*m){};
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bool DrmMode::operator==(const drmModeModeInfo &m) const {
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return memcmp(&m, &mode_, offsetof(drmModeModeInfo, name)) == 0;
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}
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bool DrmMode::SameSize(const DrmMode &mode) const {
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return (mode_.vdisplay == mode.mode_.vdisplay) &&
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(mode_.hdisplay == mode.mode_.hdisplay);
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}
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auto DrmMode::CreateModeBlob(const DrmDevice &drm)
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-> DrmModeUserPropertyBlobUnique {
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struct drm_mode_modeinfo drm_mode = {};
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/* drm_mode_modeinfo and drmModeModeInfo should be identical
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* At least libdrm does the same memcpy in drmModeAttachMode();
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*/
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memcpy(&drm_mode, &mode_, sizeof(struct drm_mode_modeinfo));
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return drm.RegisterUserPropertyBlob(&drm_mode,
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sizeof(struct drm_mode_modeinfo));
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}
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} // namespace android
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