/*
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* drm_display.h - drm display
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*
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* Copyright (c) 2015 Intel Corporation
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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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* Author: John Ye <john.ye@intel.com>
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*/
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#ifndef XCAM_DRM_DISPLAY_H
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#define XCAM_DRM_DISPLAY_H
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#include <xcam_std.h>
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#include <xcam_mutex.h>
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#include <v4l2_buffer_proxy.h>
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extern "C" {
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#include <drm.h>
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#include <drm_mode.h>
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#include <intel_bufmgr.h>
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#include <linux/videodev2.h>
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}
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#include <errno.h>
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#include <unistd.h>
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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#include <list>
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#include <vector>
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#include <map>
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namespace XCam {
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class DrmBoData;
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class DrmBoBufferPool;
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class DrmBoBuffer;
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enum DrmDisplayMode {
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DRM_DISPLAY_MODE_NONE = 0,
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DRM_DISPLAY_MODE_PRIMARY,
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DRM_DISPLAY_MODE_OVERLAY,
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};
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class DrmDisplay {
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friend class DrmBoBufferPool;
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friend class CLBoBufferPool;
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struct FB {
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uint32_t fb_handle;
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uint32_t index;
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FB () : fb_handle (0), index (0) {}
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};
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public:
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// if need local preview, please call set_preview() before instance()
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static SmartPtr<DrmDisplay> instance ();
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static uint32_t to_drm_fourcc (uint32_t fourcc_of_v4l2);
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virtual ~DrmDisplay();
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const char *get_module_name () const {
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return _module;
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}
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bool is_render_inited () const {
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return _is_render_inited;
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}
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XCamReturn render_init (
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uint32_t con_id,
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uint32_t crtc_id,
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uint32_t width,
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uint32_t height,
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uint32_t format,
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const struct v4l2_rect* compose);
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bool has_frame_buffer (SmartPtr<VideoBuffer> &buf) {
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return _buf_fb_handles.find (buf.ptr ()) != _buf_fb_handles.end ();
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};
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XCamReturn render_setup_frame_buffer (SmartPtr<VideoBuffer> &buf);
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XCamReturn render_buffer (SmartPtr<VideoBuffer> &buf);
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int get_drm_handle() const {
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return _fd;
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};
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SmartPtr<V4l2Buffer> create_drm_buf (
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const struct v4l2_format &format,
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const uint32_t index,
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const enum v4l2_buf_type buf_type);
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SmartPtr<DrmBoBuffer> convert_to_drm_bo_buf (SmartPtr<DrmDisplay> &self, SmartPtr<VideoBuffer> &buf_in);
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static bool set_preview (bool flag);
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bool can_preview () {
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return _preview_flag;
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}
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bool set_display_mode (DrmDisplayMode mode) {
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_display_mode = mode;
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return true;
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};
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private:
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DrmDisplay (const char *module = NULL);
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SmartPtr<DrmBoData> create_drm_bo (SmartPtr<DrmDisplay> &self, const VideoBufferInfo& info);
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drm_intel_bo *create_drm_bo_from_fd (int32_t fd, uint32_t size);
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bool is_authenticated (int fd, const char *msg);
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int open_driver (const char *dev_path);
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int open_drivers (const char *base_path, int base_id);
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XCamReturn get_crtc(drmModeRes *res);
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XCamReturn get_connector(drmModeRes *res);
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XCamReturn get_plane();
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XCamReturn set_plane(const FB &fb);
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XCamReturn set_crtc(const FB &fb);
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XCamReturn page_flip(const FB &fb);
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private:
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typedef std::map<const VideoBuffer *, FB> FBMap;
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static bool _preview_flag;
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char *_module;
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int _fd;
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drm_intel_bufmgr *_buf_manager;
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DrmDisplayMode _display_mode;
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int _crtc_index;
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unsigned int _crtc_id;
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unsigned int _con_id;
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unsigned int _encoder_id;
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unsigned int _plane_id;
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drmModeModeInfo _mode;
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drmModeConnector *_connector;
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bool _is_render_inited;
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unsigned int _format;
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unsigned int _width;
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unsigned int _height;
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struct v4l2_rect _compose;
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FBMap _buf_fb_handles;
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SmartPtr<VideoBuffer> _display_buf;
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private:
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XCAM_DEAD_COPY (DrmDisplay);
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private:
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static SmartPtr<DrmDisplay> _instance;
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static Mutex _mutex;
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};
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};
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#endif // XCAM_DRM_DISPLAY_H
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