SDL  2.0
SDL_DirectFB_video.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_DirectFB_video_h_
25 #define SDL_DirectFB_video_h_
26 
27 #include <directfb.h>
28 #include <directfb_version.h>
29 
30 #include "../SDL_sysvideo.h"
31 #include "SDL_scancode.h"
32 #include "SDL_render.h"
33 
34 #include "SDL_log.h"
35 
36 #define DFB_VERSIONNUM(X, Y, Z) \
37  ((X)*1000 + (Y)*100 + (Z))
38 
39 #define DFB_COMPILEDVERSION \
40  DFB_VERSIONNUM(DIRECTFB_MAJOR_VERSION, DIRECTFB_MINOR_VERSION, DIRECTFB_MICRO_VERSION)
41 
42 #define DFB_VERSION_ATLEAST(X, Y, Z) \
43  (DFB_COMPILEDVERSION >= DFB_VERSIONNUM(X, Y, Z))
44 
45 #if (DFB_VERSION_ATLEAST(1,0,0))
46 #ifdef SDL_VIDEO_OPENGL
47 #define SDL_DIRECTFB_OPENGL 1
48 #endif
49 #else
50 #error "SDL_DIRECTFB: Please compile against libdirectfb version >= 1.0.0"
51 #endif
52 
53 /* Set below to 1 to compile with (old) multi mice/keyboard api. Code left in
54  * in case we see this again ...
55  */
56 
57 #define USE_MULTI_API (0)
58 
59 /* Support for LUT8/INDEX8 pixel format.
60  * This is broken in DirectFB 1.4.3. It works in 1.4.0 and 1.4.5
61  * occurred.
62  */
63 
64 #if (DFB_COMPILEDVERSION == DFB_VERSIONNUM(1, 4, 3))
65 #define ENABLE_LUT8 (0)
66 #else
67 #define ENABLE_LUT8 (1)
68 #endif
69 
70 #define DIRECTFB_DEBUG 1
71 
72 #define DFBENV_USE_YUV_UNDERLAY "SDL_DIRECTFB_YUV_UNDERLAY" /* Default: off */
73 #define DFBENV_USE_YUV_DIRECT "SDL_DIRECTFB_YUV_DIRECT" /* Default: off */
74 #define DFBENV_USE_X11_CHECK "SDL_DIRECTFB_X11_CHECK" /* Default: on */
75 #define DFBENV_USE_LINUX_INPUT "SDL_DIRECTFB_LINUX_INPUT" /* Default: on */
76 #define DFBENV_USE_WM "SDL_DIRECTFB_WM" /* Default: off */
77 
78 #define SDL_DFB_RELEASE(x) do { if ( (x) != NULL ) { SDL_DFB_CHECK(x->Release(x)); x = NULL; } } while (0)
79 #define SDL_DFB_FREE(x) do { SDL_free((x)); (x) = NULL; } while (0)
80 #define SDL_DFB_UNLOCK(x) do { if ( (x) != NULL ) { x->Unlock(x); } } while (0)
81 
82 #define SDL_DFB_CONTEXT "SDL_DirectFB"
83 
84 #define SDL_DFB_ERR(x...) SDL_LogError(SDL_LOG_CATEGORY_ERROR, x)
85 
86 #if (DIRECTFB_DEBUG)
87 #define SDL_DFB_LOG(x...) SDL_LogInfo(SDL_LOG_CATEGORY_VIDEO, x)
88 
89 #define SDL_DFB_DEBUG(x...) SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, x)
90 
91 static SDL_INLINE DFBResult sdl_dfb_check(DFBResult ret, const char *src_file, int src_line) {
92  if (ret != DFB_OK) {
93  SDL_DFB_LOG("%s (%d):%s", src_file, src_line, DirectFBErrorString (ret) );
94  SDL_SetError("%s:%s", SDL_DFB_CONTEXT, DirectFBErrorString (ret) );
95  }
96  return ret;
97 }
98 
99 #define SDL_DFB_CHECK(x...) do { sdl_dfb_check( x, __FILE__, __LINE__); } while (0)
100 #define SDL_DFB_CHECKERR(x...) do { if ( sdl_dfb_check( x, __FILE__, __LINE__) != DFB_OK ) goto error; } while (0)
101 
102 #else
103 
104 #define SDL_DFB_CHECK(x...) x
105 #define SDL_DFB_CHECKERR(x...) do { if (x != DFB_OK ) goto error; } while (0)
106 #define SDL_DFB_LOG(x...) do {} while (0)
107 #define SDL_DFB_DEBUG(x...) do {} while (0)
108 
109 #endif
110 
111 
112 #define SDL_DFB_CALLOC(r, n, s) \
113  do { \
114  r = SDL_calloc (n, s); \
115  if (!(r)) { \
116  SDL_DFB_ERR("Out of memory"); \
117  SDL_OutOfMemory(); \
118  goto error; \
119  } \
120  } while (0)
121 
122 #define SDL_DFB_ALLOC_CLEAR(r, s) SDL_DFB_CALLOC(r, 1, s)
123 
124 /* Private display data */
125 
126 #define SDL_DFB_DEVICEDATA(dev) DFB_DeviceData *devdata = (dev ? (DFB_DeviceData *) ((dev)->driverdata) : NULL)
127 
128 #define DFB_MAX_SCREENS 10
129 
130 typedef struct _DFB_KeyboardData DFB_KeyboardData;
131 struct _DFB_KeyboardData
132 {
133  const SDL_Scancode *map; /* keyboard scancode map */
134  int map_size; /* size of map */
135  int map_adjust; /* index adjust */
136  int is_generic; /* generic keyboard */
137  int id;
138 };
139 
140 typedef struct _DFB_DeviceData DFB_DeviceData;
141 struct _DFB_DeviceData
142 {
143  int initialized;
144 
145  IDirectFB *dfb;
146  int num_mice;
147  int mouse_id[0x100];
148  int num_keyboard;
149  DFB_KeyboardData keyboard[10];
150  SDL_Window *firstwin;
151 
152  int use_yuv_underlays;
153  int use_yuv_direct;
154  int use_linux_input;
155  int has_own_wm;
156 
157 
158  /* window grab */
159  SDL_Window *grabbed_window;
160 
161  /* global events */
162  IDirectFBEventBuffer *events;
163 };
164 
165 Uint32 DirectFB_DFBToSDLPixelFormat(DFBSurfacePixelFormat pixelformat);
166 DFBSurfacePixelFormat DirectFB_SDLToDFBPixelFormat(Uint32 format);
167 void DirectFB_SetSupportedPixelFormats(SDL_RendererInfo *ri);
168 
169 
170 #endif /* SDL_DirectFB_video_h_ */