1 /*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2020 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 #include "../../SDL_internal.h"
22
23 #if SDL_VIDEO_DRIVER_DIRECTFB
24
25 /*
26 * #include "SDL_DirectFB_keyboard.h"
27 */
28 #include "SDL_DirectFB_modes.h"
29 #include "SDL_DirectFB_opengl.h"
30 #include "SDL_DirectFB_window.h"
31 #include "SDL_DirectFB_WM.h"
32
33
34 /* DirectFB video driver implementation.
35 */
36
37 #include <fcntl.h>
38 #include <unistd.h>
39 #include <sys/mman.h>
40
41 #include <directfb.h>
42 #include <directfb_version.h>
43 #include <directfb_strings.h>
44
45 #include "SDL_video.h"
46 #include "SDL_mouse.h"
47 #include "../SDL_sysvideo.h"
48 #include "../SDL_pixels_c.h"
49 #include "../../events/SDL_events_c.h"
50 #include "SDL_DirectFB_video.h"
51 #include "SDL_DirectFB_events.h"
52 #include "SDL_DirectFB_render.h"
53 #include "SDL_DirectFB_mouse.h"
54 #include "SDL_DirectFB_shape.h"
55
56
57 #include "SDL_DirectFB_dyn.h"
58
59 /* Initialization/Query functions */
60 static int DirectFB_VideoInit(_THIS);
61 static void DirectFB_VideoQuit(_THIS);
62
63 static int DirectFB_Available(void);
64 static SDL_VideoDevice *DirectFB_CreateDevice(int devindex);
65
66 VideoBootStrap DirectFB_bootstrap = {
67 "directfb", "DirectFB",
68 DirectFB_Available, DirectFB_CreateDevice
69 };
70
71 static const DirectFBSurfaceDrawingFlagsNames(drawing_flags);
72 static const DirectFBSurfaceBlittingFlagsNames(blitting_flags);
73 static const DirectFBAccelerationMaskNames(acceleration_mask);
74
75 /* DirectFB driver bootstrap functions */
76
77 static int
DirectFB_Available(void)78 DirectFB_Available(void)
79 {
80 if (!SDL_DirectFB_LoadLibrary())
81 return 0;
82 SDL_DirectFB_UnLoadLibrary();
83 return 1;
84 }
85
86 static void
DirectFB_DeleteDevice(SDL_VideoDevice * device)87 DirectFB_DeleteDevice(SDL_VideoDevice * device)
88 {
89 SDL_DirectFB_UnLoadLibrary();
90 SDL_DFB_FREE(device->driverdata);
91 SDL_DFB_FREE(device);
92 }
93
94 static SDL_VideoDevice *
DirectFB_CreateDevice(int devindex)95 DirectFB_CreateDevice(int devindex)
96 {
97 SDL_VideoDevice *device;
98
99 if (!SDL_DirectFB_LoadLibrary()) {
100 return NULL;
101 }
102
103 /* Initialize all variables that we clean on shutdown */
104 SDL_DFB_ALLOC_CLEAR(device, sizeof(SDL_VideoDevice));
105
106 /* Set the function pointers */
107 device->VideoInit = DirectFB_VideoInit;
108 device->VideoQuit = DirectFB_VideoQuit;
109 device->GetDisplayModes = DirectFB_GetDisplayModes;
110 device->SetDisplayMode = DirectFB_SetDisplayMode;
111 device->PumpEvents = DirectFB_PumpEventsWindow;
112 device->CreateSDLWindow = DirectFB_CreateWindow;
113 device->CreateSDLWindowFrom = DirectFB_CreateWindowFrom;
114 device->SetWindowTitle = DirectFB_SetWindowTitle;
115 device->SetWindowIcon = DirectFB_SetWindowIcon;
116 device->SetWindowPosition = DirectFB_SetWindowPosition;
117 device->SetWindowSize = DirectFB_SetWindowSize;
118 device->SetWindowOpacity = DirectFB_SetWindowOpacity;
119 device->ShowWindow = DirectFB_ShowWindow;
120 device->HideWindow = DirectFB_HideWindow;
121 device->RaiseWindow = DirectFB_RaiseWindow;
122 device->MaximizeWindow = DirectFB_MaximizeWindow;
123 device->MinimizeWindow = DirectFB_MinimizeWindow;
124 device->RestoreWindow = DirectFB_RestoreWindow;
125 device->SetWindowGrab = DirectFB_SetWindowGrab;
126 device->DestroyWindow = DirectFB_DestroyWindow;
127 device->GetWindowWMInfo = DirectFB_GetWindowWMInfo;
128
129 /* !!! FIXME: implement SetWindowBordered */
130
131 #if SDL_DIRECTFB_OPENGL
132 device->GL_LoadLibrary = DirectFB_GL_LoadLibrary;
133 device->GL_GetProcAddress = DirectFB_GL_GetProcAddress;
134 device->GL_MakeCurrent = DirectFB_GL_MakeCurrent;
135
136 device->GL_CreateContext = DirectFB_GL_CreateContext;
137 device->GL_SetSwapInterval = DirectFB_GL_SetSwapInterval;
138 device->GL_GetSwapInterval = DirectFB_GL_GetSwapInterval;
139 device->GL_SwapWindow = DirectFB_GL_SwapWindow;
140 device->GL_DeleteContext = DirectFB_GL_DeleteContext;
141
142 #endif
143
144 /* Shaped window support */
145 device->shape_driver.CreateShaper = DirectFB_CreateShaper;
146 device->shape_driver.SetWindowShape = DirectFB_SetWindowShape;
147 device->shape_driver.ResizeWindowShape = DirectFB_ResizeWindowShape;
148
149 device->free = DirectFB_DeleteDevice;
150
151 return device;
152 error:
153 if (device)
154 SDL_free(device);
155 return (0);
156 }
157
158 static void
DirectFB_DeviceInformation(IDirectFB * dfb)159 DirectFB_DeviceInformation(IDirectFB * dfb)
160 {
161 DFBGraphicsDeviceDescription desc;
162 int n;
163
164 dfb->GetDeviceDescription(dfb, &desc);
165
166 SDL_DFB_LOG( "DirectFB Device Information");
167 SDL_DFB_LOG( "===========================");
168 SDL_DFB_LOG( "Name: %s", desc.name);
169 SDL_DFB_LOG( "Vendor: %s", desc.vendor);
170 SDL_DFB_LOG( "Driver Name: %s", desc.driver.name);
171 SDL_DFB_LOG( "Driver Vendor: %s", desc.driver.vendor);
172 SDL_DFB_LOG( "Driver Version: %d.%d", desc.driver.major,
173 desc.driver.minor);
174
175 SDL_DFB_LOG( "Video memory: %d", desc.video_memory);
176
177 SDL_DFB_LOG( "Blitting flags:");
178 for (n = 0; blitting_flags[n].flag; n++) {
179 if (desc.blitting_flags & blitting_flags[n].flag)
180 SDL_DFB_LOG( " %s", blitting_flags[n].name);
181 }
182
183 SDL_DFB_LOG( "Drawing flags:");
184 for (n = 0; drawing_flags[n].flag; n++) {
185 if (desc.drawing_flags & drawing_flags[n].flag)
186 SDL_DFB_LOG( " %s", drawing_flags[n].name);
187 }
188
189
190 SDL_DFB_LOG( "Acceleration flags:");
191 for (n = 0; acceleration_mask[n].mask; n++) {
192 if (desc.acceleration_mask & acceleration_mask[n].mask)
193 SDL_DFB_LOG( " %s", acceleration_mask[n].name);
194 }
195
196
197 }
198
readBoolEnv(const char * env_name,int def_val)199 static int readBoolEnv(const char *env_name, int def_val)
200 {
201 char *stemp;
202
203 stemp = SDL_getenv(env_name);
204 if (stemp)
205 return atoi(stemp);
206 else
207 return def_val;
208 }
209
210 static int
DirectFB_VideoInit(_THIS)211 DirectFB_VideoInit(_THIS)
212 {
213 IDirectFB *dfb = NULL;
214 DFB_DeviceData *devdata = NULL;
215 DFBResult ret;
216
217 SDL_DFB_ALLOC_CLEAR(devdata, sizeof(*devdata));
218
219 SDL_DFB_CHECKERR(DirectFBInit(NULL, NULL));
220
221 /* avoid switching to the framebuffer when we
222 * are running X11 */
223 ret = readBoolEnv(DFBENV_USE_X11_CHECK , 1);
224 if (ret) {
225 if (SDL_getenv("DISPLAY"))
226 DirectFBSetOption("system", "x11");
227 else
228 DirectFBSetOption("disable-module", "x11input");
229 }
230
231 devdata->use_linux_input = readBoolEnv(DFBENV_USE_LINUX_INPUT, 1); /* default: on */
232
233 if (!devdata->use_linux_input)
234 {
235 SDL_DFB_LOG("Disabling linux input\n");
236 DirectFBSetOption("disable-module", "linux_input");
237 }
238
239 SDL_DFB_CHECKERR(DirectFBCreate(&dfb));
240
241 DirectFB_DeviceInformation(dfb);
242
243 devdata->use_yuv_underlays = readBoolEnv(DFBENV_USE_YUV_UNDERLAY, 0); /* default: off */
244 devdata->use_yuv_direct = readBoolEnv(DFBENV_USE_YUV_DIRECT, 0); /* default is off! */
245
246 /* Create global Eventbuffer for axis events */
247 if (devdata->use_linux_input) {
248 SDL_DFB_CHECKERR(dfb->CreateInputEventBuffer(dfb, DICAPS_ALL,
249 DFB_TRUE,
250 &devdata->events));
251 } else {
252 SDL_DFB_CHECKERR(dfb->CreateInputEventBuffer(dfb, DICAPS_AXES
253 /* DICAPS_ALL */ ,
254 DFB_TRUE,
255 &devdata->events));
256 }
257
258 /* simple window manager support */
259 devdata->has_own_wm = readBoolEnv(DFBENV_USE_WM, 0);
260
261 devdata->initialized = 1;
262
263 devdata->dfb = dfb;
264 devdata->firstwin = NULL;
265 devdata->grabbed_window = NULL;
266
267 _this->driverdata = devdata;
268
269 DirectFB_InitModes(_this);
270
271 #if SDL_DIRECTFB_OPENGL
272 DirectFB_GL_Initialize(_this);
273 #endif
274
275 DirectFB_InitMouse(_this);
276 DirectFB_InitKeyboard(_this);
277
278 return 0;
279
280
281 error:
282 SDL_DFB_FREE(devdata);
283 SDL_DFB_RELEASE(dfb);
284 return -1;
285 }
286
287 static void
DirectFB_VideoQuit(_THIS)288 DirectFB_VideoQuit(_THIS)
289 {
290 DFB_DeviceData *devdata = (DFB_DeviceData *) _this->driverdata;
291
292 DirectFB_QuitModes(_this);
293 DirectFB_QuitKeyboard(_this);
294 DirectFB_QuitMouse(_this);
295
296 devdata->events->Reset(devdata->events);
297 SDL_DFB_RELEASE(devdata->events);
298 SDL_DFB_RELEASE(devdata->dfb);
299
300 #if SDL_DIRECTFB_OPENGL
301 DirectFB_GL_Shutdown(_this);
302 #endif
303
304 devdata->initialized = 0;
305 }
306
307 /* DirectFB driver general support functions */
308
309 static const struct {
310 DFBSurfacePixelFormat dfb;
311 Uint32 sdl;
312 } pixelformat_tab[] =
313 {
314 { DSPF_RGB32, SDL_PIXELFORMAT_RGB888 }, /* 24 bit RGB (4 byte, nothing@24, red 8@16, green 8@8, blue 8@0) */
315 { DSPF_ARGB, SDL_PIXELFORMAT_ARGB8888 }, /* 32 bit ARGB (4 byte, alpha 8@24, red 8@16, green 8@8, blue 8@0) */
316 { DSPF_RGB16, SDL_PIXELFORMAT_RGB565 }, /* 16 bit RGB (2 byte, red 5@11, green 6@5, blue 5@0) */
317 { DSPF_RGB332, SDL_PIXELFORMAT_RGB332 }, /* 8 bit RGB (1 byte, red 3@5, green 3@2, blue 2@0) */
318 { DSPF_ARGB4444, SDL_PIXELFORMAT_ARGB4444 }, /* 16 bit ARGB (2 byte, alpha 4@12, red 4@8, green 4@4, blue 4@0) */
319 { DSPF_ARGB1555, SDL_PIXELFORMAT_ARGB1555 }, /* 16 bit ARGB (2 byte, alpha 1@15, red 5@10, green 5@5, blue 5@0) */
320 { DSPF_RGB24, SDL_PIXELFORMAT_RGB24 }, /* 24 bit RGB (3 byte, red 8@16, green 8@8, blue 8@0) */
321 { DSPF_RGB444, SDL_PIXELFORMAT_RGB444 }, /* 16 bit RGB (2 byte, nothing @12, red 4@8, green 4@4, blue 4@0) */
322 { DSPF_YV12, SDL_PIXELFORMAT_YV12 }, /* 12 bit YUV (8 bit Y plane followed by 8 bit quarter size V/U planes) */
323 { DSPF_I420,SDL_PIXELFORMAT_IYUV }, /* 12 bit YUV (8 bit Y plane followed by 8 bit quarter size U/V planes) */
324 { DSPF_YUY2, SDL_PIXELFORMAT_YUY2 }, /* 16 bit YUV (4 byte/ 2 pixel, macropixel contains CbYCrY [31:0]) */
325 { DSPF_UYVY, SDL_PIXELFORMAT_UYVY }, /* 16 bit YUV (4 byte/ 2 pixel, macropixel contains YCbYCr [31:0]) */
326 { DSPF_RGB555, SDL_PIXELFORMAT_RGB555 }, /* 16 bit RGB (2 byte, nothing @15, red 5@10, green 5@5, blue 5@0) */
327 { DSPF_ABGR, SDL_PIXELFORMAT_ABGR8888 }, /* 32 bit ABGR (4 byte, alpha 8@24, blue 8@16, green 8@8, red 8@0) */
328 #if (ENABLE_LUT8)
329 { DSPF_LUT8, SDL_PIXELFORMAT_INDEX8 }, /* 8 bit LUT (8 bit color and alpha lookup from palette) */
330 #endif
331
332 #if (DFB_VERSION_ATLEAST(1,2,0))
333 { DSPF_BGR555, SDL_PIXELFORMAT_BGR555 }, /* 16 bit BGR (2 byte, nothing @15, blue 5@10, green 5@5, red 5@0) */
334 #else
335 { DSPF_UNKNOWN, SDL_PIXELFORMAT_BGR555 },
336 #endif
337
338 /* Pfff ... nonmatching formats follow */
339
340 { DSPF_ALUT44, SDL_PIXELFORMAT_UNKNOWN }, /* 8 bit ALUT (1 byte, alpha 4@4, color lookup 4@0) */
341 { DSPF_A8, SDL_PIXELFORMAT_UNKNOWN }, /* 8 bit alpha (1 byte, alpha 8@0), e.g. anti-aliased glyphs */
342 { DSPF_AiRGB, SDL_PIXELFORMAT_UNKNOWN }, /* 32 bit ARGB (4 byte, inv. alpha 8@24, red 8@16, green 8@8, blue 8@0) */
343 { DSPF_A1, SDL_PIXELFORMAT_UNKNOWN }, /* 1 bit alpha (1 byte/ 8 pixel, most significant bit used first) */
344 { DSPF_NV12, SDL_PIXELFORMAT_UNKNOWN }, /* 12 bit YUV (8 bit Y plane followed by one 16 bit quarter size CbCr [15:0] plane) */
345 { DSPF_NV16, SDL_PIXELFORMAT_UNKNOWN }, /* 16 bit YUV (8 bit Y plane followed by one 16 bit half width CbCr [15:0] plane) */
346 { DSPF_ARGB2554, SDL_PIXELFORMAT_UNKNOWN }, /* 16 bit ARGB (2 byte, alpha 2@14, red 5@9, green 5@4, blue 4@0) */
347 { DSPF_NV21, SDL_PIXELFORMAT_UNKNOWN }, /* 12 bit YUV (8 bit Y plane followed by one 16 bit quarter size CrCb [15:0] plane) */
348 { DSPF_AYUV, SDL_PIXELFORMAT_UNKNOWN }, /* 32 bit AYUV (4 byte, alpha 8@24, Y 8@16, Cb 8@8, Cr 8@0) */
349 { DSPF_A4, SDL_PIXELFORMAT_UNKNOWN }, /* 4 bit alpha (1 byte/ 2 pixel, more significant nibble used first) */
350 { DSPF_ARGB1666, SDL_PIXELFORMAT_UNKNOWN }, /* 1 bit alpha (3 byte/ alpha 1@18, red 6@16, green 6@6, blue 6@0) */
351 { DSPF_ARGB6666, SDL_PIXELFORMAT_UNKNOWN }, /* 6 bit alpha (3 byte/ alpha 6@18, red 6@16, green 6@6, blue 6@0) */
352 { DSPF_RGB18, SDL_PIXELFORMAT_UNKNOWN }, /* 6 bit RGB (3 byte/ red 6@16, green 6@6, blue 6@0) */
353 { DSPF_LUT2, SDL_PIXELFORMAT_UNKNOWN }, /* 2 bit LUT (1 byte/ 4 pixel, 2 bit color and alpha lookup from palette) */
354
355 #if (DFB_VERSION_ATLEAST(1,3,0))
356 { DSPF_RGBA4444, SDL_PIXELFORMAT_UNKNOWN }, /* 16 bit RGBA (2 byte, red 4@12, green 4@8, blue 4@4, alpha 4@0) */
357 #endif
358
359 #if (DFB_VERSION_ATLEAST(1,4,3))
360 { DSPF_RGBA5551, SDL_PIXELFORMAT_UNKNOWN }, /* 16 bit RGBA (2 byte, red 5@11, green 5@6, blue 5@1, alpha 1@0) */
361 { DSPF_YUV444P, SDL_PIXELFORMAT_UNKNOWN }, /* 24 bit full YUV planar (8 bit Y plane followed by an 8 bit Cb and an 8 bit Cr plane) */
362 { DSPF_ARGB8565, SDL_PIXELFORMAT_UNKNOWN }, /* 24 bit ARGB (3 byte, alpha 8@16, red 5@11, green 6@5, blue 5@0) */
363 { DSPF_AVYU, SDL_PIXELFORMAT_UNKNOWN }, /* 32 bit AVYU 4:4:4 (4 byte, alpha 8@24, Cr 8@16, Y 8@8, Cb 8@0) */
364 { DSPF_VYU, SDL_PIXELFORMAT_UNKNOWN }, /* 24 bit VYU 4:4:4 (3 byte, Cr 8@16, Y 8@8, Cb 8@0) */
365 #endif
366
367 { DSPF_UNKNOWN, SDL_PIXELFORMAT_INDEX1LSB },
368 { DSPF_UNKNOWN, SDL_PIXELFORMAT_INDEX1MSB },
369 { DSPF_UNKNOWN, SDL_PIXELFORMAT_INDEX4LSB },
370 { DSPF_UNKNOWN, SDL_PIXELFORMAT_INDEX4MSB },
371 { DSPF_UNKNOWN, SDL_PIXELFORMAT_BGR24 },
372 { DSPF_UNKNOWN, SDL_PIXELFORMAT_BGR888 },
373 { DSPF_UNKNOWN, SDL_PIXELFORMAT_RGBA8888 },
374 { DSPF_UNKNOWN, SDL_PIXELFORMAT_BGRA8888 },
375 { DSPF_UNKNOWN, SDL_PIXELFORMAT_ARGB2101010 },
376 { DSPF_UNKNOWN, SDL_PIXELFORMAT_ABGR4444 },
377 { DSPF_UNKNOWN, SDL_PIXELFORMAT_ABGR1555 },
378 { DSPF_UNKNOWN, SDL_PIXELFORMAT_BGR565 },
379 { DSPF_UNKNOWN, SDL_PIXELFORMAT_YVYU }, /**< Packed mode: Y0+V0+Y1+U0 (1 pla */
380 };
381
382 Uint32
DirectFB_DFBToSDLPixelFormat(DFBSurfacePixelFormat pixelformat)383 DirectFB_DFBToSDLPixelFormat(DFBSurfacePixelFormat pixelformat)
384 {
385 int i;
386
387 for (i=0; pixelformat_tab[i].dfb != DSPF_UNKNOWN; i++)
388 if (pixelformat_tab[i].dfb == pixelformat)
389 {
390 return pixelformat_tab[i].sdl;
391 }
392 return SDL_PIXELFORMAT_UNKNOWN;
393 }
394
395 DFBSurfacePixelFormat
DirectFB_SDLToDFBPixelFormat(Uint32 format)396 DirectFB_SDLToDFBPixelFormat(Uint32 format)
397 {
398 int i;
399
400 for (i=0; pixelformat_tab[i].dfb != DSPF_UNKNOWN; i++)
401 if (pixelformat_tab[i].sdl == format)
402 {
403 return pixelformat_tab[i].dfb;
404 }
405 return DSPF_UNKNOWN;
406 }
407
DirectFB_SetSupportedPixelFormats(SDL_RendererInfo * ri)408 void DirectFB_SetSupportedPixelFormats(SDL_RendererInfo* ri)
409 {
410 int i, j;
411
412 for (i=0, j=0; pixelformat_tab[i].dfb != DSPF_UNKNOWN; i++)
413 if (pixelformat_tab[i].sdl != SDL_PIXELFORMAT_UNKNOWN)
414 ri->texture_formats[j++] = pixelformat_tab[i].sdl;
415 ri->num_texture_formats = j;
416 }
417
418 #endif /* SDL_VIDEO_DRIVER_DIRECTFB */
419