b9bd2712fb
[DRM API][1] uses a counter-clockwise direction, while [HWC API][2] uses a clockwise. [1]: https://elixir.bootlin.com/linux/v6.5.7/source/include/uapi/drm/drm_mode.h#L172 [2]: https://cs.android.com/android/platform/superproject/main/+/main:hardware/libhardware/include_all/hardware/hwcomposer_defs.h;l=96;drc=e9d7337d9d1edc0d8e3ece246ecde747e345e876 Closes: https://gitlab.freedesktop.org/drm-hwcomposer/drm-hwcomposer/-/issues/78 Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com>
73 lines
2 KiB
C++
73 lines
2 KiB
C++
/*
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* Copyright (C) 2022 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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#include <hardware/hardware.h>
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#include <hardware/hwcomposer.h>
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#include <cmath>
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#include <cstdbool>
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#include <cstdint>
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#include <optional>
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#include <vector>
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#include "bufferinfo/BufferInfo.h"
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#include "drm/DrmFbImporter.h"
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#include "utils/fd.h"
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namespace android {
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class DrmFbIdHandle;
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/* Rotation is defined in the clockwise direction */
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enum LayerTransform : uint32_t {
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kIdentity = 0,
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kFlipH = 1 << 0,
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kFlipV = 1 << 1,
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kRotate90 = 1 << 2,
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kRotate180 = 1 << 3,
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kRotate270 = 1 << 4,
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};
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struct PresentInfo {
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LayerTransform transform{};
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uint16_t alpha = UINT16_MAX;
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hwc_frect_t source_crop{};
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hwc_rect_t display_frame{};
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bool RequireScalingOrPhasing() const {
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const float src_width = source_crop.right - source_crop.left;
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const float src_height = source_crop.bottom - source_crop.top;
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auto dest_width = float(display_frame.right - display_frame.left);
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auto dest_height = float(display_frame.bottom - display_frame.top);
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auto scaling = src_width != dest_width || src_height != dest_height;
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auto phasing = (source_crop.left - std::floor(source_crop.left) != 0) ||
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(source_crop.top - std::floor(source_crop.top) != 0);
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return scaling || phasing;
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}
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};
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struct LayerData {
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std::optional<BufferInfo> bi;
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std::shared_ptr<DrmFbIdHandle> fb;
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PresentInfo pi;
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SharedFd acquire_fence;
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};
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} // namespace android
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