1/*
2    SDL - Simple DirectMedia Layer
3    Copyright (C) 1997-2012 Sam Lantinga
4
5    This library is free software; you can redistribute it and/or
6    modify it under the terms of the GNU Lesser General Public
7    License as published by the Free Software Foundation; either
8    version 2.1 of the License, or (at your option) any later version.
9
10    This library is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13    Lesser General Public License for more details.
14
15    You should have received a copy of the GNU Lesser General Public
16    License along with this library; if not, write to the Free Software
17    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
18
19    Sam Lantinga
20    slouken@libsdl.org
21*/
22#include "SDL_config.h"
23
24/* Framebuffer console based SDL video driver implementation.
25*/
26
27#include <fcntl.h>
28#include <unistd.h>
29#include <sys/ioctl.h>
30#include <sys/mman.h>
31
32#include "SDL_video.h"
33#include "SDL_mouse.h"
34#include "../SDL_sysvideo.h"
35#include "../SDL_pixels_c.h"
36#include "../../events/SDL_events_c.h"
37#include "../SDL_cursor_c.h"
38#include "SDL_gsvideo.h"
39#include "SDL_gsmouse_c.h"
40#include "SDL_gsevents_c.h"
41#include "SDL_gsyuv_c.h"
42
43
44/* Initialization/Query functions */
45static int GS_VideoInit(_THIS, SDL_PixelFormat *vformat);
46static SDL_Rect **GS_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags);
47static SDL_Surface *GS_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
48static int GS_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors);
49static void GS_VideoQuit(_THIS);
50
51/* Hardware surface functions */
52static int GS_AllocHWSurface(_THIS, SDL_Surface *surface);
53static int GS_LockHWSurface(_THIS, SDL_Surface *surface);
54static void GS_UnlockHWSurface(_THIS, SDL_Surface *surface);
55static void GS_FreeHWSurface(_THIS, SDL_Surface *surface);
56
57/* GS driver bootstrap functions */
58
59static int GS_Available(void)
60{
61	int console, memory;
62
63	console = open(PS2_DEV_GS, O_RDWR, 0);
64	if ( console >= 0 ) {
65		close(console);
66	}
67	memory = open(PS2_DEV_MEM, O_RDWR, 0);
68	if ( memory >= 0 ) {
69		close(memory);
70	}
71	return((console >= 0) && (memory >= 0));
72}
73
74static void GS_DeleteDevice(SDL_VideoDevice *device)
75{
76	SDL_free(device->hidden);
77	SDL_free(device);
78}
79
80static SDL_VideoDevice *GS_CreateDevice(int devindex)
81{
82	SDL_VideoDevice *this;
83
84	/* Initialize all variables that we clean on shutdown */
85	this = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice));
86	if ( this ) {
87		SDL_memset(this, 0, (sizeof *this));
88		this->hidden = (struct SDL_PrivateVideoData *)
89				SDL_malloc((sizeof *this->hidden));
90	}
91	if ( (this == NULL) || (this->hidden == NULL) ) {
92		SDL_OutOfMemory();
93		if ( this ) {
94			SDL_free(this);
95		}
96		return(0);
97	}
98	SDL_memset(this->hidden, 0, (sizeof *this->hidden));
99	mouse_fd = -1;
100	keyboard_fd = -1;
101
102	/* Set the function pointers */
103	this->VideoInit = GS_VideoInit;
104	this->ListModes = GS_ListModes;
105	this->SetVideoMode = GS_SetVideoMode;
106	this->CreateYUVOverlay = GS_CreateYUVOverlay;
107	this->SetColors = GS_SetColors;
108	this->UpdateRects = NULL;
109	this->VideoQuit = GS_VideoQuit;
110	this->AllocHWSurface = GS_AllocHWSurface;
111	this->CheckHWBlit = NULL;
112	this->FillHWRect = NULL;
113	this->SetHWColorKey = NULL;
114	this->SetHWAlpha = NULL;
115	this->LockHWSurface = GS_LockHWSurface;
116	this->UnlockHWSurface = GS_UnlockHWSurface;
117	this->FlipHWSurface = NULL;
118	this->FreeHWSurface = GS_FreeHWSurface;
119	this->SetIcon = NULL;
120	this->SetCaption = NULL;
121	this->GetWMInfo = NULL;
122	this->FreeWMCursor = GS_FreeWMCursor;
123	this->CreateWMCursor = GS_CreateWMCursor;
124	this->ShowWMCursor = GS_ShowWMCursor;
125	this->MoveWMCursor = GS_MoveWMCursor;
126	this->InitOSKeymap = GS_InitOSKeymap;
127	this->PumpEvents = GS_PumpEvents;
128
129	this->free = GS_DeleteDevice;
130
131	return this;
132}
133
134VideoBootStrap PS2GS_bootstrap = {
135	"ps2gs", "PlayStation 2 Graphics Synthesizer",
136	GS_Available, GS_CreateDevice
137};
138
139/* These are the pixel formats for the 32, 24, and 16 bit video modes */
140static struct {
141	int bpp;
142	Uint32 r;
143	Uint32 g;
144	Uint32 b;
145} GS_pixelmasks[] = {
146	{ 32, 0x000000FF,	/* RGB little-endian */
147	      0x0000FF00,
148	      0x00FF0000 },
149	{ 24, 0x000000FF,	/* RGB little-endian */
150	      0x0000FF00,
151	      0x00FF0000 },
152	{ 16, 0x0000001f,	/* RGB little-endian */
153	      0x000003e0,
154	      0x00007c00 },
155};
156/* This is a mapping from SDL bytes-per-pixel to GS pixel format */
157static int GS_formatmap[] = {
158	-1,		/* 0 bpp, not a legal value */
159	-1,		/* 8 bpp, not supported (yet?) */
160	PS2_GS_PSMCT16,	/* 16 bpp */
161	PS2_GS_PSMCT24,	/* 24 bpp */
162	PS2_GS_PSMCT32	/* 32 bpp */
163};
164
165static unsigned long long head_tags[] __attribute__((aligned(16))) = {
166	4 | (1LL << 60),	/* GIFtag */
167	0x0e,			/* A+D */
168	0,			/* 2 */
169	PS2_GS_BITBLTBUF,
170	0,			/* 4 */
171	PS2_GS_TRXPOS,
172	0,			/* 6 */
173	PS2_GS_TRXREG,
174	0,			/* 8 */
175	PS2_GS_TRXDIR
176};
177
178#define MAXIMG		(32767 * 16)
179#define MAXTAGS		8
180
181static inline int loadimage_nonblock(int fd, struct ps2_image *image, int size,
182                                     unsigned long long *hm,
183                                     unsigned long long *im)
184{
185	struct ps2_plist plist;
186	struct ps2_packet packet[1 + MAXTAGS * 2];
187	int isize;
188	int pnum, it, eop;
189	char *data;
190
191	/* initialize the variables */
192	data = (char *)image->ptr;
193	pnum = it = eop = 0;
194	plist.packet = packet;
195
196	/* make BITBLT packet */
197	packet[pnum].ptr = hm;
198	packet[pnum].len = sizeof(head_tags);
199	pnum++;
200	hm[2] = ((unsigned long long)image->fbp << 32) |
201	        ((unsigned long long)image->fbw << 48) |
202	        ((unsigned long long)image->psm << 56);
203	hm[4] = ((unsigned long long)image->x << 32) |
204	        ((unsigned long long)image->y << 48);
205	hm[6] = (unsigned long long)image->w |
206	        ((unsigned long long)image->h << 32);
207
208	/* make image mode tags */
209	while (!eop) {
210		isize = size > MAXIMG ? MAXIMG : size;
211		size -= isize;
212		eop = (size == 0);
213
214		packet[pnum].ptr = &im[it];
215		packet[pnum].len = sizeof(unsigned long long) * 2;
216		pnum++;
217		im[it++] = (isize >> 4) | (eop ? (1 << 15) : 0) | (2LL << 58);
218		im[it++] = 0;
219
220		packet[pnum].ptr = (void *)data;
221		packet[pnum].len = isize;
222		pnum++;
223		data += isize;
224	}
225	plist.num = pnum;
226
227	return ioctl(fd, PS2IOC_SENDL, &plist);
228}
229
230static unsigned long long tex_tags[] __attribute__((aligned(16))) = {
231	3 | (1LL << 60),	/* GIFtag */
232	0x0e,			/* A+D */
233	0,			/* 2 */
234	PS2_GS_TEX0_1,
235	(1 << 5) + (1 << 6),
236	PS2_GS_TEX1_1,
237	0,
238	PS2_GS_TEXFLUSH
239};
240static unsigned long long scale_tags[] __attribute__((aligned(16))) = {
241	5 | (1LL << 60),	/* GIFtag */
242	0x0e,			/* A+D */
243	6 + (1 << 4) + (1 << 8),
244	PS2_GS_PRIM,
245	((unsigned long long)0 * 16) + (((unsigned long long)0 * 16) << 16),
246	PS2_GS_UV,
247	((unsigned long long)0 * 16) + (((unsigned long long)0 * 16) << 16),
248	PS2_GS_XYZ2,
249	0,			/* 8 */
250	PS2_GS_UV,
251	0,			/* 10 */
252	PS2_GS_XYZ2
253};
254
255
256int scaleimage_nonblock(int fd, unsigned long long *tm, unsigned long long *sm)
257{
258	struct ps2_plist plist;
259	struct ps2_packet packet[2];
260
261	/* initialize the variables */
262	plist.num = 2;
263	plist.packet = packet;
264
265	packet[0].ptr = tm;
266	packet[0].len = sizeof(tex_tags);
267	packet[1].ptr = sm;
268	packet[1].len = sizeof(scale_tags);
269
270	return ioctl(fd, PS2IOC_SENDL, &plist);
271}
272
273static int power_of_2(int value)
274{
275	int shift;
276
277	for ( shift = 0; (1<<shift) < value; ++shift ) {
278		/* Keep looking */ ;
279	}
280	return(shift);
281}
282
283static int GS_VideoInit(_THIS, SDL_PixelFormat *vformat)
284{
285	struct ps2_screeninfo vinfo;
286
287	/* Initialize the library */
288	console_fd = open(PS2_DEV_GS, O_RDWR, 0);
289	if ( console_fd < 0 ) {
290		SDL_SetError("Unable to open %s", PS2_DEV_GS);
291		return(-1);
292	}
293	memory_fd = open(PS2_DEV_MEM, O_RDWR, 0);
294	if ( memory_fd < 0 ) {
295		close(console_fd);
296		console_fd = -1;
297		SDL_SetError("Unable to open %s", PS2_DEV_MEM);
298		return(-1);
299	}
300
301	if ( ioctl(console_fd, PS2IOC_GSCREENINFO, &vinfo) < 0 ) {
302		close(memory_fd);
303		close(console_fd);
304		console_fd = -1;
305		SDL_SetError("Couldn't get console pixel format");
306		return(-1);
307	}
308
309	/* Determine the current screen size */
310	this->info.current_w = vinfo.w;
311	this->info.current_h = vinfo.h;
312
313	/* Determine the current screen depth */
314	switch (vinfo.psm) {
315	    /* Supported pixel formats */
316	    case PS2_GS_PSMCT32:
317	    case PS2_GS_PSMCT24:
318	    case PS2_GS_PSMCT16:
319		break;
320	    default:
321		GS_VideoQuit(this);
322		SDL_SetError("Unknown console pixel format: %d", vinfo.psm);
323		return(-1);
324	}
325	vformat->BitsPerPixel = GS_pixelmasks[vinfo.psm].bpp;
326	vformat->Rmask = GS_pixelmasks[vinfo.psm].r;
327	vformat->Gmask = GS_pixelmasks[vinfo.psm].g;
328	vformat->Bmask = GS_pixelmasks[vinfo.psm].b;
329	saved_vinfo = vinfo;
330
331	/* Enable mouse and keyboard support */
332	if ( GS_OpenKeyboard(this) < 0 ) {
333		GS_VideoQuit(this);
334		SDL_SetError("Unable to open keyboard");
335		return(-1);
336	}
337	if ( GS_OpenMouse(this) < 0 ) {
338		const char *sdl_nomouse;
339
340		sdl_nomouse = SDL_getenv("SDL_NOMOUSE");
341		if ( ! sdl_nomouse ) {
342			GS_VideoQuit(this);
343			SDL_SetError("Unable to open mouse");
344			return(-1);
345		}
346	}
347
348	/* We're done! */
349	return(0);
350}
351
352static SDL_Rect **GS_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
353{
354	static SDL_Rect GS_vesa_mode_list[] = {
355		{ 0, 0, 1280, 1024 },
356		{ 0, 0, 1024, 768 },
357		{ 0, 0, 800, 600 },
358		{ 0, 0, 640, 480 }
359	};
360	static SDL_Rect *GS_vesa_modes[] = {
361		&GS_vesa_mode_list[0],
362		&GS_vesa_mode_list[1],
363		&GS_vesa_mode_list[2],
364		&GS_vesa_mode_list[3],
365		NULL
366	};
367	static SDL_Rect GS_tvout_stretch;
368	static SDL_Rect GS_tvout_mode;
369	static SDL_Rect *GS_tvout_modes[3];
370	SDL_Rect **modes = NULL;
371
372	switch (format->BitsPerPixel) {
373	    case 16:
374	    case 24:
375	    case 32:
376		if ( saved_vinfo.mode == PS2_GS_VESA ) {
377			modes = GS_vesa_modes;
378		} else {
379			int i, j = 0;
380
381// FIXME - what's wrong with the stretch code at 16 bpp?
382if ( format->BitsPerPixel != 32 ) break;
383			/* Add a mode that we could possibly stretch to */
384			for ( i=0; GS_vesa_modes[i]; ++i ) {
385				if ( (GS_vesa_modes[i]->w == saved_vinfo.w) &&
386				     (GS_vesa_modes[i]->h != saved_vinfo.h) ) {
387					GS_tvout_stretch.w=GS_vesa_modes[i]->w;
388					GS_tvout_stretch.h=GS_vesa_modes[i]->h;
389					GS_tvout_modes[j++] = &GS_tvout_stretch;
390					break;
391				}
392			}
393			/* Add the current TV video mode */
394			GS_tvout_mode.w = saved_vinfo.w;
395			GS_tvout_mode.h = saved_vinfo.h;
396			GS_tvout_modes[j++] = &GS_tvout_mode;
397			GS_tvout_modes[j++] = NULL;
398
399			/* Return the created list of modes */
400			modes = GS_tvout_modes;
401		}
402		break;
403	    default:
404		break;
405	}
406	return(modes);
407}
408
409/* Various screen update functions available */
410static void GS_DMAFullUpdate(_THIS, int numrects, SDL_Rect *rects);
411
412static SDL_Surface *GS_SetVideoMode(_THIS, SDL_Surface *current,
413				int width, int height, int bpp, Uint32 flags)
414{
415	struct ps2_screeninfo vinfo;
416
417	/* Set the terminal into graphics mode */
418	if ( GS_EnterGraphicsMode(this) < 0 ) {
419		return(NULL);
420	}
421
422	/* Set the video mode and get the final screen format */
423	if ( ioctl(console_fd, PS2IOC_GSCREENINFO, &vinfo) < 0 ) {
424		SDL_SetError("Couldn't get console screen info");
425		return(NULL);
426	}
427	if ( (vinfo.w != width) || (vinfo.h != height) ||
428	     (GS_pixelmasks[vinfo.psm].bpp != bpp) ) {
429		/* If we're not in VESA mode, we have to scale resolution */
430		if ( saved_vinfo.mode == PS2_GS_VESA ) {
431			switch (width) {
432			    case 640:
433				vinfo.res = PS2_GS_640x480;
434				break;
435			    case 800:
436				vinfo.res = PS2_GS_800x600;
437				break;
438			    case 1024:
439				vinfo.res = PS2_GS_1024x768;
440				break;
441			    case 1280:
442				vinfo.res = PS2_GS_1280x1024;
443				break;
444			    default:
445				SDL_SetError("Unsupported resolution: %dx%d\n",
446					     width, height);
447				return(NULL);
448			}
449			vinfo.res |= (PS2_GS_75Hz << 8);
450			vinfo.w = width;
451			vinfo.h = height;
452		}
453		vinfo.fbp = 0;
454		vinfo.psm = GS_formatmap[bpp/8];
455		if ( vinfo.psm < 0 ) {
456			SDL_SetError("Unsupported depth: %d bpp\n", bpp);
457			return(NULL);
458		}
459		if ( ioctl(console_fd, PS2IOC_SSCREENINFO, &vinfo) < 0 ) {
460			SDL_SetError("Couldn't set console screen info");
461			return(NULL);
462		}
463
464		/* Unmap the previous DMA buffer */
465		if ( mapped_mem ) {
466			munmap(mapped_mem, mapped_len);
467			mapped_mem = NULL;
468		}
469	}
470	if ( ! SDL_ReallocFormat(current, GS_pixelmasks[vinfo.psm].bpp,
471	                                  GS_pixelmasks[vinfo.psm].r,
472	                                  GS_pixelmasks[vinfo.psm].g,
473	                                  GS_pixelmasks[vinfo.psm].b, 0) ) {
474		return(NULL);
475	}
476
477	/* Set up the new mode framebuffer */
478	current->flags = SDL_FULLSCREEN;
479	current->w = width;
480	current->h = height;
481	current->pitch = SDL_CalculatePitch(current);
482
483	/* Memory map the DMA area for block memory transfer */
484	if ( ! mapped_mem ) {
485		pixels_len = height * current->pitch;
486		mapped_len = pixels_len +
487		             /* Screen update DMA command area */
488		             sizeof(head_tags) + ((2 * MAXTAGS) * 16);
489		if ( saved_vinfo.mode != PS2_GS_VESA ) {
490			mapped_len += sizeof(tex_tags) + sizeof(scale_tags);
491		}
492		mapped_mem = mmap(0, mapped_len, PROT_READ|PROT_WRITE,
493		                  MAP_SHARED, memory_fd, 0);
494		if ( mapped_mem == MAP_FAILED ) {
495			SDL_SetError("Unable to map %d bytes for DMA",
496			             mapped_len);
497			mapped_mem = NULL;
498			return(NULL);
499		}
500
501		/* Set up the entire screen for DMA transfer */
502		screen_image.ptr = mapped_mem;
503		screen_image.fbp = 0;
504		screen_image.fbw = (vinfo.w + 63) / 64;
505		screen_image.psm = vinfo.psm;
506		screen_image.x = 0;
507		if ( vinfo.h == height ) {
508			screen_image.y = 0;
509		} else {
510			/* Put image offscreen and scale to screen height */
511			screen_image.y = vinfo.h;
512		}
513		screen_image.w = current->w;
514		screen_image.h = current->h;
515
516		/* get screen image data size (qword aligned) */
517		screen_image_size = (screen_image.w * screen_image.h);
518		switch (screen_image.psm) {
519		    case PS2_GS_PSMCT32:
520			screen_image_size *= 4;
521			break;
522		    case PS2_GS_PSMCT24:
523			screen_image_size *= 3;
524			break;
525		    case PS2_GS_PSMCT16:
526			screen_image_size *= 2;
527			break;
528		}
529		screen_image_size = (screen_image_size + 15) & ~15;
530
531		/* Set up the memory for screen update DMA commands */
532		head_tags_mem = (unsigned long long *)
533		                (mapped_mem + pixels_len);
534		image_tags_mem = (unsigned long long *)
535		                 ((caddr_t)head_tags_mem + sizeof(head_tags));
536		SDL_memcpy(head_tags_mem, head_tags, sizeof(head_tags));
537		if ( saved_vinfo.mode != PS2_GS_VESA ) {
538			tex_tags_mem = (unsigned long long *)
539		                 ((caddr_t)image_tags_mem + ((2*MAXTAGS)*16));
540			scale_tags_mem = (unsigned long long *)
541		                 ((caddr_t)tex_tags_mem + sizeof(tex_tags));
542			SDL_memcpy(tex_tags_mem, tex_tags, sizeof(tex_tags));
543			tex_tags_mem[2] =
544				(vinfo.h * vinfo.w) / 64 +
545	          		((unsigned long long)screen_image.fbw << 14) +
546	          		((unsigned long long)screen_image.psm << 20) +
547	          		((unsigned long long)power_of_2(screen_image.w) << 26) +
548	          		((unsigned long long)power_of_2(screen_image.h) << 30) +
549	          		((unsigned long long)1 << 34) +
550	          		((unsigned long long)1 << 35);
551			SDL_memcpy(scale_tags_mem, scale_tags, sizeof(scale_tags));
552			scale_tags_mem[8] =
553				((unsigned long long)screen_image.w * 16) +
554			         (((unsigned long long)screen_image.h * 16) << 16);
555			scale_tags_mem[10] =
556				((unsigned long long)vinfo.w * 16) +
557			         (((unsigned long long)vinfo.h * 16) << 16);
558		}
559	}
560	current->pixels = NULL;
561	if ( SDL_getenv("SDL_FULLSCREEN_UPDATE") ) {
562		/* Correct semantics */
563		current->flags |= SDL_ASYNCBLIT;
564	} else {
565		/* We lie here - the screen memory isn't really the visible
566		   display memory and still requires an update, but this
567		   has the desired effect for most applications.
568		 */
569		current->flags |= SDL_HWSURFACE;
570	}
571
572	/* Set the update rectangle function */
573	this->UpdateRects = GS_DMAFullUpdate;
574
575	/* We're done */
576	return(current);
577}
578
579/* We don't support hardware surfaces yet */
580static int GS_AllocHWSurface(_THIS, SDL_Surface *surface)
581{
582	return(-1);
583}
584static void GS_FreeHWSurface(_THIS, SDL_Surface *surface)
585{
586	return;
587}
588static int GS_LockHWSurface(_THIS, SDL_Surface *surface)
589{
590	if ( surface == this->screen ) {
591		/* Since mouse motion affects 'pixels', lock it */
592		SDL_LockCursor();
593
594		/* Make sure any pending DMA has completed */
595		if ( dma_pending ) {
596			ioctl(console_fd, PS2IOC_SENDQCT, 1);
597			dma_pending = 0;
598		}
599
600		/* If the cursor is drawn on the DMA area, remove it */
601		if ( cursor_drawn ) {
602			surface->pixels = mapped_mem + surface->offset;
603			SDL_EraseCursorNoLock(this->screen);
604			cursor_drawn = 0;
605		}
606
607		/* Set the surface pixels to the base of the DMA area */
608		surface->pixels = mapped_mem;
609
610		/* We're finished! */
611		SDL_UnlockCursor();
612	}
613	return(0);
614}
615static void GS_UnlockHWSurface(_THIS, SDL_Surface *surface)
616{
617	if ( surface == this->screen ) {
618		/* Since mouse motion affects 'pixels', lock it */
619		SDL_LockCursor();
620		surface->pixels = NULL;
621		SDL_UnlockCursor();
622	}
623}
624
625static void GS_DMAFullUpdate(_THIS, int numrects, SDL_Rect *rects)
626{
627	/* Lock so we aren't interrupted by a mouse update */
628	SDL_LockCursor();
629
630	/* Make sure any pending DMA has completed */
631	if ( dma_pending ) {
632		ioctl(console_fd, PS2IOC_SENDQCT, 1);
633		dma_pending = 0;
634	}
635
636	/* If the mouse is visible, draw it on the DMA area */
637	if ( (SDL_cursorstate & CURSOR_VISIBLE) && !cursor_drawn ) {
638		this->screen->pixels = mapped_mem + this->screen->offset;
639		SDL_DrawCursorNoLock(this->screen);
640		this->screen->pixels = NULL;
641		cursor_drawn = 1;
642	}
643
644	/* Put the image onto the screen */
645	loadimage_nonblock(console_fd,
646	                   &screen_image, screen_image_size,
647	                   head_tags_mem, image_tags_mem);
648	if ( screen_image.y > 0 ) {
649		/* Need to scale offscreen image to TV output */
650		ioctl(console_fd, PS2IOC_SENDQCT, 1);
651		dma_pending = 0;
652		scaleimage_nonblock(console_fd, tex_tags_mem, scale_tags_mem);
653	} else {
654		dma_pending = 1;
655	}
656
657	/* We're finished! */
658	SDL_UnlockCursor();
659}
660
661static int GS_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
662{
663	return(0);
664}
665
666static void GS_VideoQuit(_THIS)
667{
668	/* Close console and input file descriptors */
669	if ( console_fd > 0 ) {
670		/* Unmap the video framebuffer */
671		if ( mapped_mem ) {
672			/* Unmap the video framebuffer */
673			munmap(mapped_mem, mapped_len);
674			mapped_mem = NULL;
675		}
676		close(memory_fd);
677
678		/* Restore the original video mode */
679		if ( GS_InGraphicsMode(this) ) {
680			ioctl(console_fd, PS2IOC_SSCREENINFO, &saved_vinfo);
681		}
682
683		/* We're all done with the graphics device */
684		close(console_fd);
685		console_fd = -1;
686	}
687	GS_CloseMouse(this);
688	GS_CloseKeyboard(this);
689}
690