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1 /*
2     SDL - Simple DirectMedia Layer
3     Copyright (C) 1997-2006 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 */
45 static int GS_VideoInit(_THIS, SDL_PixelFormat *vformat);
46 static SDL_Rect **GS_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags);
47 static SDL_Surface *GS_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
48 static int GS_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors);
49 static void GS_VideoQuit(_THIS);
50 
51 /* Hardware surface functions */
52 static int GS_AllocHWSurface(_THIS, SDL_Surface *surface);
53 static int GS_LockHWSurface(_THIS, SDL_Surface *surface);
54 static void GS_UnlockHWSurface(_THIS, SDL_Surface *surface);
55 static void GS_FreeHWSurface(_THIS, SDL_Surface *surface);
56 
57 /* GS driver bootstrap functions */
58 
GS_Available(void)59 static 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 
GS_DeleteDevice(SDL_VideoDevice * device)74 static void GS_DeleteDevice(SDL_VideoDevice *device)
75 {
76 	SDL_free(device->hidden);
77 	SDL_free(device);
78 }
79 
GS_CreateDevice(int devindex)80 static 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 
134 VideoBootStrap 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 */
140 static 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 */
157 static 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 
165 static 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 
loadimage_nonblock(int fd,struct ps2_image * image,int size,unsigned long long * hm,unsigned long long * im)181 static 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 
230 static 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 };
240 static 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 
scaleimage_nonblock(int fd,unsigned long long * tm,unsigned long long * sm)256 int 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 
power_of_2(int value)273 static 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 
GS_VideoInit(_THIS,SDL_PixelFormat * vformat)283 static 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 
GS_ListModes(_THIS,SDL_PixelFormat * format,Uint32 flags)352 static 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?
382 if ( 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 */
410 static void GS_DMAFullUpdate(_THIS, int numrects, SDL_Rect *rects);
411 
GS_SetVideoMode(_THIS,SDL_Surface * current,int width,int height,int bpp,Uint32 flags)412 static 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 */
GS_AllocHWSurface(_THIS,SDL_Surface * surface)580 static int GS_AllocHWSurface(_THIS, SDL_Surface *surface)
581 {
582 	return(-1);
583 }
GS_FreeHWSurface(_THIS,SDL_Surface * surface)584 static void GS_FreeHWSurface(_THIS, SDL_Surface *surface)
585 {
586 	return;
587 }
GS_LockHWSurface(_THIS,SDL_Surface * surface)588 static 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 }
GS_UnlockHWSurface(_THIS,SDL_Surface * surface)615 static 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 
GS_DMAFullUpdate(_THIS,int numrects,SDL_Rect * rects)625 static 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 
GS_SetColors(_THIS,int firstcolor,int ncolors,SDL_Color * colors)661 static int GS_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
662 {
663 	return(0);
664 }
665 
GS_VideoQuit(_THIS)666 static 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