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75 lines
2.1 KiB
75 lines
2.1 KiB
/*
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* Copyright (C) 2017 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 <stddef.h>
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#include <stdint.h>
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#include <memory>
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#include <xf86drmMode.h>
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#include "graphics.h"
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#include "minui/minui.h"
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class GRSurfaceDrm : public GRSurface {
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public:
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~GRSurfaceDrm() override;
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// Creates a GRSurfaceDrm instance.
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static std::unique_ptr<GRSurfaceDrm> Create(int drm_fd, int width, int height);
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uint8_t* data() override {
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return mmapped_buffer_;
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}
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private:
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friend class MinuiBackendDrm;
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GRSurfaceDrm(size_t width, size_t height, size_t row_bytes, size_t pixel_bytes, int drm_fd,
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uint32_t handle)
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: GRSurface(width, height, row_bytes, pixel_bytes), drm_fd_(drm_fd), handle(handle) {}
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const int drm_fd_;
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uint32_t fb_id{ 0 };
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uint32_t handle{ 0 };
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uint8_t* mmapped_buffer_{ nullptr };
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};
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class MinuiBackendDrm : public MinuiBackend {
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public:
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MinuiBackendDrm() = default;
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~MinuiBackendDrm() override;
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GRSurface* Init() override;
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GRSurface* Flip() override;
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void Blank(bool) override;
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private:
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void DrmDisableCrtc(int drm_fd, drmModeCrtc* crtc);
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bool DrmEnableCrtc(int drm_fd, drmModeCrtc* crtc, const std::unique_ptr<GRSurfaceDrm>& surface);
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void DisableNonMainCrtcs(int fd, drmModeRes* resources, drmModeCrtc* main_crtc);
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drmModeConnector* FindMainMonitor(int fd, drmModeRes* resources, uint32_t* mode_index);
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std::unique_ptr<GRSurfaceDrm> GRSurfaceDrms[2];
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int current_buffer{ 0 };
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drmModeCrtc* main_monitor_crtc{ nullptr };
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drmModeConnector* main_monitor_connector{ nullptr };
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int drm_fd{ -1 };
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};
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