| /* |
| * Copyright (C) 2017 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 |
| |
| #include <linux/fb.h> |
| #include <stdint.h> |
| |
| #include "graphics.h" |
| #include "minui/minui.h" |
| |
| class GRSurfaceFbdev : public GRSurface { |
| public: |
| uint8_t* data() override { |
| return buffer_; |
| } |
| |
| private: |
| friend class MinuiBackendFbdev; |
| |
| // Points to the start of the buffer: either the mmap'd framebuffer or one allocated in-memory. |
| uint8_t* buffer_; |
| }; |
| |
| class MinuiBackendFbdev : public MinuiBackend { |
| public: |
| GRSurface* Init() override; |
| GRSurface* Flip() override; |
| void Blank(bool) override; |
| ~MinuiBackendFbdev() override; |
| MinuiBackendFbdev(); |
| |
| private: |
| void SetDisplayedFramebuffer(unsigned n); |
| |
| GRSurfaceFbdev gr_framebuffer[2]; |
| bool double_buffered; |
| GRSurfaceFbdev* gr_draw; |
| int displayed_buffer; |
| fb_var_screeninfo vi; |
| int fb_fd; |
| }; |