SDL  2.0
SDL_kmsdrmvideo.h
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1 /*
2  Simple DirectMedia Layer
3  Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
4 
5  This software is provided 'as-is', without any express or implied
6  warranty. In no event will the authors be held liable for any damages
7  arising from the use of this software.
8 
9  Permission is granted to anyone to use this software for any purpose,
10  including commercial applications, and to alter it and redistribute it
11  freely, subject to the following restrictions:
12 
13  1. The origin of this software must not be misrepresented; you must not
14  claim that you wrote the original software. If you use this software
15  in a product, an acknowledgment in the product documentation would be
16  appreciated but is not required.
17  2. Altered source versions must be plainly marked as such, and must not be
18  misrepresented as being the original software.
19  3. This notice may not be removed or altered from any source distribution.
20 */
21 
22 #include "../../SDL_internal.h"
23 
24 #ifndef __SDL_KMSDRMVIDEO_H__
25 #define __SDL_KMSDRMVIDEO_H__
26 
27 #include "../SDL_sysvideo.h"
28 
29 #include <fcntl.h>
30 #include <unistd.h>
31 #include <poll.h>
32 #include <xf86drm.h>
33 #include <xf86drmMode.h>
34 #include <gbm.h>
35 #if SDL_VIDEO_OPENGL_EGL
36 #include <EGL/egl.h>
37 #endif
38 
39 typedef struct SDL_VideoData
40 {
41  int devindex; /* device index that was passed on creation */
42  int drm_fd; /* DRM file desc */
43  struct gbm_device *gbm;
44  drmEventContext drm_evctx; /* DRM event context */
45  struct pollfd drm_pollfd; /* pollfd containing DRM file desc */
46  drmModeCrtc *saved_crtc; /* Saved CRTC to restore on quit */
47  uint32_t saved_conn_id; /* Saved DRM connector ID */
48  uint32_t crtc_id; /* CRTC in use */
49 } SDL_VideoData;
50 
51 
52 typedef struct SDL_DisplayData
53 {
54  uint32_t encoder_id;
55  uint32_t crtc_id;
56  drmModeModeInfo cur_mode;
57 } SDL_DisplayData;
58 
59 
60 typedef struct SDL_WindowData
61 {
62  struct gbm_surface *gs;
63  struct gbm_bo *current_bo;
64  struct gbm_bo *next_bo;
65  struct gbm_bo *crtc_bo;
66  SDL_bool waiting_for_flip;
67  SDL_bool crtc_ready;
68  SDL_bool double_buffer;
69 #if SDL_VIDEO_OPENGL_EGL
70  EGLSurface egl_surface;
71 #endif
72 } SDL_WindowData;
73 
74 typedef struct KMSDRM_FBInfo
75 {
76  int drm_fd; /* DRM file desc */
77  uint32_t fb_id; /* DRM framebuffer ID */
78 } KMSDRM_FBInfo;
79 
80 /* Helper functions */
81 KMSDRM_FBInfo *KMSDRM_FBFromBO(_THIS, struct gbm_bo *bo);
82 SDL_bool KMSDRM_WaitPageFlip(_THIS, SDL_WindowData *wdata, int timeout);
83 
84 /****************************************************************************/
85 /* SDL_VideoDevice functions declaration */
86 /****************************************************************************/
87 
88 /* Display and window functions */
89 int KMSDRM_VideoInit(_THIS);
90 void KMSDRM_VideoQuit(_THIS);
91 void KMSDRM_GetDisplayModes(_THIS, SDL_VideoDisplay * display);
92 int KMSDRM_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode);
93 int KMSDRM_CreateWindow(_THIS, SDL_Window * window);
94 int KMSDRM_CreateWindowFrom(_THIS, SDL_Window * window, const void *data);
95 void KMSDRM_SetWindowTitle(_THIS, SDL_Window * window);
96 void KMSDRM_SetWindowIcon(_THIS, SDL_Window * window, SDL_Surface * icon);
97 void KMSDRM_SetWindowPosition(_THIS, SDL_Window * window);
98 void KMSDRM_SetWindowSize(_THIS, SDL_Window * window);
99 void KMSDRM_ShowWindow(_THIS, SDL_Window * window);
100 void KMSDRM_HideWindow(_THIS, SDL_Window * window);
101 void KMSDRM_RaiseWindow(_THIS, SDL_Window * window);
102 void KMSDRM_MaximizeWindow(_THIS, SDL_Window * window);
103 void KMSDRM_MinimizeWindow(_THIS, SDL_Window * window);
104 void KMSDRM_RestoreWindow(_THIS, SDL_Window * window);
105 void KMSDRM_SetWindowGrab(_THIS, SDL_Window * window, SDL_bool grabbed);
106 void KMSDRM_DestroyWindow(_THIS, SDL_Window * window);
107 
108 /* Window manager function */
109 SDL_bool KMSDRM_GetWindowWMInfo(_THIS, SDL_Window * window,
110  struct SDL_SysWMinfo *info);
111 
112 /* OpenGL/OpenGL ES functions */
113 int KMSDRM_GLES_LoadLibrary(_THIS, const char *path);
114 void *KMSDRM_GLES_GetProcAddress(_THIS, const char *proc);
115 void KMSDRM_GLES_UnloadLibrary(_THIS);
116 SDL_GLContext KMSDRM_GLES_CreateContext(_THIS, SDL_Window * window);
117 int KMSDRM_GLES_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context);
118 int KMSDRM_GLES_SetSwapInterval(_THIS, int interval);
119 int KMSDRM_GLES_GetSwapInterval(_THIS);
120 int KMSDRM_GLES_SwapWindow(_THIS, SDL_Window * window);
121 void KMSDRM_GLES_DeleteContext(_THIS, SDL_GLContext context);
122 
123 #endif /* __SDL_KMSDRMVIDEO_H__ */
124 
125 /* vi: set ts=4 sw=4 expandtab: */