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/*
* uterm - Linux User-Space Terminal
*
* Copyright (c) 2011-2013 David Herrmann <dh.herrmann@googlemail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/* Internal definitions */
#ifndef UTERM_VIDEO_INTERNAL_H
#define UTERM_VIDEO_INTERNAL_H
#include <inttypes.h>
#include <limits.h>
#include <stdbool.h>
#include <stdlib.h>
#include "eloop.h"
#include "shl_dlist.h"
#include "shl_hook.h"
#include "uterm_video.h"
/* backend-operations */
struct mode_ops {
int (*init) (struct uterm_mode *mode);
void (*destroy) (struct uterm_mode *mode);
const char *(*get_name) (const struct uterm_mode *mode);
unsigned int (*get_width) (const struct uterm_mode *mode);
unsigned int (*get_height) (const struct uterm_mode *mode);
};
struct display_ops {
int (*init) (struct uterm_display *display);
void (*destroy) (struct uterm_display *display);
int (*activate) (struct uterm_display *disp, struct uterm_mode *mode);
void (*deactivate) (struct uterm_display *disp);
int (*set_dpms) (struct uterm_display *disp, int state);
int (*use) (struct uterm_display *disp, bool *opengl);
int (*get_buffers) (struct uterm_display *disp,
struct uterm_video_buffer *buffer,
unsigned int formats);
int (*swap) (struct uterm_display *disp, bool immediate);
int (*blit) (struct uterm_display *disp,
const struct uterm_video_buffer *buf,
unsigned int x, unsigned int y);
int (*fake_blendv) (struct uterm_display *disp,
const struct uterm_video_blend_req *req,
size_t num);
int (*fill) (struct uterm_display *disp,
uint8_t r, uint8_t g, uint8_t b, unsigned int x,
unsigned int y, unsigned int width, unsigned int height);
};
struct video_ops {
int (*init) (struct uterm_video *video, const char *node);
void (*destroy) (struct uterm_video *video);
void (*segfault) (struct uterm_video *video);
int (*poll) (struct uterm_video *video);
void (*sleep) (struct uterm_video *video);
int (*wake_up) (struct uterm_video *video);
};
struct uterm_video_module {
const struct video_ops *ops;
};
#define VIDEO_CALL(func, els, ...) (func ? func(__VA_ARGS__) : els)
/* uterm_mode */
struct uterm_mode {
struct shl_dlist list;
unsigned long ref;
struct uterm_display *disp;
const struct mode_ops *ops;
void *data;
};
int mode_new(struct uterm_mode **out, const struct mode_ops *ops);
int uterm_mode_bind(struct uterm_mode *mode, struct uterm_display *disp);
void uterm_mode_unbind(struct uterm_mode *mode);
/* uterm_display */
#define DISPLAY_ONLINE 0x01
#define DISPLAY_VSYNC 0x02
#define DISPLAY_AVAILABLE 0x04
#define DISPLAY_OPEN 0x08
#define DISPLAY_DBUF 0x10
#define DISPLAY_DITHERING 0x20
#define DISPLAY_PFLIP 0x40
struct uterm_display {
struct shl_dlist list;
unsigned long ref;
unsigned int flags;
struct uterm_video *video;
struct shl_hook *hook;
struct shl_dlist modes;
struct uterm_mode *default_mode;
struct uterm_mode *current_mode;
int dpms;
bool vblank_scheduled;
struct itimerspec vblank_spec;
struct ev_timer *vblank_timer;
const struct display_ops *ops;
void *data;
};
int display_new(struct uterm_display **out, const struct display_ops *ops);
void display_set_vblank_timer(struct uterm_display *disp,
unsigned int msecs);
int display_schedule_vblank_timer(struct uterm_display *disp);
int uterm_display_bind(struct uterm_display *disp, struct uterm_video *video);
void uterm_display_unbind(struct uterm_display *disp);
#define DISPLAY_CB(disp, act) shl_hook_call((disp)->hook, (disp), \
&(struct uterm_display_event){ \
.action = (act), \
})
static inline bool display_is_online(const struct uterm_display *disp)
{
return disp->video && (disp->flags & DISPLAY_ONLINE);
}
/* uterm_video */
#define VIDEO_AWAKE 0x01
#define VIDEO_HOTPLUG 0x02
struct uterm_video {
unsigned long ref;
unsigned int flags;
struct ev_eloop *eloop;
struct shl_dlist displays;
struct shl_hook *hook;
const struct uterm_video_module *mod;
const struct video_ops *ops;
void *data;
};
static inline bool video_is_awake(const struct uterm_video *video)
{
return video->flags & VIDEO_AWAKE;
}
static inline bool video_need_hotplug(const struct uterm_video *video)
{
return video->flags & VIDEO_HOTPLUG;
}
#define VIDEO_CB(vid, disp, act) shl_hook_call((vid)->hook, (vid), \
&(struct uterm_video_hotplug){ \
.display = (disp), \
.action = (act), \
})
#if defined(BUILD_ENABLE_VIDEO_DRM3D) || defined(BUILD_ENABLE_VIDEO_DRM2D)
#include <xf86drm.h>
static inline bool video_drm_available(void)
{
return drmAvailable();
}
#else
static inline bool video_drm_available(void)
{
return false;
}
#endif
#endif /* UTERM_VIDEO_INTERNAL_H */
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