xf86Crtc.c 82.6 KB
Newer Older
1 2
/*
 * Copyright © 2006 Keith Packard
3
 * Copyright © 2008 Red Hat, Inc.
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that copyright
 * notice and this permission notice appear in supporting documentation, and
 * that the name of the copyright holders not be used in advertising or
 * publicity pertaining to distribution of the software without specific,
 * written prior permission.  The copyright holders make no representations
 * about the suitability of this software for any purpose.  It is provided "as
 * is" without express or implied warranty.
 *
 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
 * OF THIS SOFTWARE.
 */

#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
26 27 28 29
#else
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
30 31 32 33 34 35 36 37 38 39
#endif

#include <stddef.h>
#include <string.h>
#include <stdio.h>

#include "xf86.h"
#include "xf86DDC.h"
#include "xf86Crtc.h"
#include "xf86Modes.h"
40
#include "xf86Priv.h"
41 42
#include "xf86RandR12.h"
#include "X11/extensions/render.h"
Peter Hutterer's avatar
Peter Hutterer committed
43
#include "X11/extensions/dpmsconst.h"
44
#include "X11/Xatom.h"
45
#include "picturestr.h"
46

47 48
#include "xf86xv.h"

49 50 51 52
/*
 * Initialize xf86CrtcConfig structure
 */

53
int xf86CrtcConfigPrivateIndex = -1;
54

55
void
56 57
xf86CrtcConfigInit (ScrnInfoPtr scrn,
		    const xf86CrtcConfigFuncsRec *funcs)
58 59 60 61 62 63
{
    xf86CrtcConfigPtr	config;
    
    if (xf86CrtcConfigPrivateIndex == -1)
	xf86CrtcConfigPrivateIndex = xf86AllocateScrnInfoPrivateIndex();
    config = xnfcalloc (1, sizeof (xf86CrtcConfigRec));
64 65 66

    config->funcs = funcs;

67 68 69
    scrn->privates[xf86CrtcConfigPrivateIndex].ptr = config;
}
 
70
void
71 72 73 74 75 76 77 78 79 80 81 82 83 84 85
xf86CrtcSetSizeRange (ScrnInfoPtr scrn,
		      int minWidth, int minHeight,
		      int maxWidth, int maxHeight)
{
    xf86CrtcConfigPtr	config = XF86_CRTC_CONFIG_PTR(scrn);

    config->minWidth = minWidth;
    config->minHeight = minHeight;
    config->maxWidth = maxWidth;
    config->maxHeight = maxHeight;
}

/*
 * Crtc functions
 */
86
xf86CrtcPtr
87 88 89 90 91 92
xf86CrtcCreate (ScrnInfoPtr		scrn,
		const xf86CrtcFuncsRec	*funcs)
{
    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
    xf86CrtcPtr		crtc, *crtcs;

93
    crtc = calloc(sizeof (xf86CrtcRec), 1);
94 95
    if (!crtc)
	return NULL;
96
    crtc->version = XF86_CRTC_VERSION;
97 98 99 100 101 102 103
    crtc->scrn = scrn;
    crtc->funcs = funcs;
#ifdef RANDR_12_INTERFACE
    crtc->randr_crtc = NULL;
#endif
    crtc->rotation = RR_Rotate_0;
    crtc->desiredRotation = RR_Rotate_0;
104 105 106
    pixman_transform_init_identity (&crtc->crtc_to_framebuffer);
    pixman_f_transform_init_identity (&crtc->f_crtc_to_framebuffer);
    pixman_f_transform_init_identity (&crtc->f_framebuffer_to_crtc);
107 108 109 110 111 112
    crtc->filter = NULL;
    crtc->params = NULL;
    crtc->nparams = 0;
    crtc->filter_width = 0;
    crtc->filter_height = 0;
    crtc->transform_in_use = FALSE;
113 114
    crtc->transformPresent = FALSE;
    crtc->desiredTransformPresent = FALSE;
115 116
    memset (&crtc->bounds, '\0', sizeof (crtc->bounds));

117 118 119
    /* Preallocate gamma at a sensible size. */
    crtc->gamma_size = 256;
    crtc->gamma_red = malloc(3 * crtc->gamma_size * sizeof (CARD16));
120
    if (!crtc->gamma_red) {
121
	free(crtc);
122 123
	return NULL;
    }
124 125 126
    crtc->gamma_green = crtc->gamma_red + crtc->gamma_size;
    crtc->gamma_blue = crtc->gamma_green + crtc->gamma_size;

127
    if (xf86_config->crtc)
128
	crtcs = realloc(xf86_config->crtc,
129 130
			  (xf86_config->num_crtc + 1) * sizeof (xf86CrtcPtr));
    else
131
	crtcs = malloc((xf86_config->num_crtc + 1) * sizeof (xf86CrtcPtr));
132 133
    if (!crtcs)
    {
134
	free(crtc);
135 136 137 138 139 140 141
	return NULL;
    }
    xf86_config->crtc = crtcs;
    xf86_config->crtc[xf86_config->num_crtc++] = crtc;
    return crtc;
}

142
void
143 144 145 146 147 148 149 150 151 152 153
xf86CrtcDestroy (xf86CrtcPtr crtc)
{
    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
    int			c;
    
    (*crtc->funcs->destroy) (crtc);
    for (c = 0; c < xf86_config->num_crtc; c++)
	if (xf86_config->crtc[c] == crtc)
	{
	    memmove (&xf86_config->crtc[c],
		     &xf86_config->crtc[c+1],
154
		     ((xf86_config->num_crtc - (c + 1)) * sizeof(void*)));
155 156 157
	    xf86_config->num_crtc--;
	    break;
	}
158
    if (crtc->params)
159
	free(crtc->params);
160
    free(crtc->gamma_red);
161
    free(crtc);
162 163 164 165 166 167 168
}


/**
 * Return whether any outputs are connected to the specified pipe
 */

169
Bool
170 171 172 173 174 175 176 177 178 179 180 181
xf86CrtcInUse (xf86CrtcPtr crtc)
{
    ScrnInfoPtr		pScrn = crtc->scrn;
    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
    int			o;
    
    for (o = 0; o < xf86_config->num_output; o++)
	if (xf86_config->output[o]->crtc == crtc)
	    return TRUE;
    return FALSE;
}

182
void
183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244
xf86CrtcSetScreenSubpixelOrder (ScreenPtr pScreen)
{
    int			subpixel_order = SubPixelUnknown;
    Bool		has_none = FALSE;
    ScrnInfoPtr		scrn = xf86Screens[pScreen->myNum];
    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
    int			c, o;

    for (c = 0; c < xf86_config->num_crtc; c++)
    {
	xf86CrtcPtr crtc = xf86_config->crtc[c];
	
	for (o = 0; o < xf86_config->num_output; o++)
	{
	    xf86OutputPtr   output = xf86_config->output[o];

	    if (output->crtc == crtc)
	    {
		switch (output->subpixel_order) {
		case SubPixelNone:
		    has_none = TRUE;
		    break;
		case SubPixelUnknown:
		    break;
		default:
		    subpixel_order = output->subpixel_order;
		    break;
		}
	    }
	    if (subpixel_order != SubPixelUnknown)
		break;
	}
	if (subpixel_order != SubPixelUnknown)
	{
	    static const int circle[4] = {
		SubPixelHorizontalRGB,
		SubPixelVerticalRGB,
		SubPixelHorizontalBGR,
		SubPixelVerticalBGR,
	    };
	    int	rotate;
	    int c;
	    for (rotate = 0; rotate < 4; rotate++)
		if (crtc->rotation & (1 << rotate))
		    break;
	    for (c = 0; c < 4; c++)
		if (circle[c] == subpixel_order)
		    break;
	    c = (c + rotate) & 0x3;
	    if ((crtc->rotation & RR_Reflect_X) && !(c & 1))
		c ^= 2;
	    if ((crtc->rotation & RR_Reflect_Y) && (c & 1))
		c ^= 2;
	    subpixel_order = circle[c];
	    break;
	}
    }
    if (subpixel_order == SubPixelUnknown && has_none)
	subpixel_order = SubPixelNone;
    PictureSetSubpixelOrder (pScreen, subpixel_order);
}

245 246 247
/**
 * Sets the given video mode on the given crtc
 */
248
Bool
249 250
xf86CrtcSetModeTransform (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation,
			  RRTransformPtr transform, int x, int y)
251 252 253 254 255 256 257 258 259 260
{
    ScrnInfoPtr		scrn = crtc->scrn;
    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
    int			i;
    Bool		ret = FALSE;
    Bool		didLock = FALSE;
    DisplayModePtr	adjusted_mode;
    DisplayModeRec	saved_mode;
    int			saved_x, saved_y;
    Rotation		saved_rotation;
261 262
    RRTransformRec	saved_transform;
    Bool		saved_transform_present;
263 264

    crtc->enabled = xf86CrtcInUse (crtc);
265

266
    /* We only hit this if someone explicitly sends a "disabled" modeset. */
267 268
    if (!crtc->enabled)
    {
269 270
	/* Check everything for stuff that should be off. */
	xf86DisableUnusedFunctions(scrn);
271 272 273
	return TRUE;
    }

274 275
    adjusted_mode = xf86DuplicateMode(mode);

276 277 278 279 280

    saved_mode = crtc->mode;
    saved_x = crtc->x;
    saved_y = crtc->y;
    saved_rotation = crtc->rotation;
281 282 283 284
    if (crtc->transformPresent) {
	RRTransformInit (&saved_transform);
	RRTransformCopy (&saved_transform, &crtc->transform);
    }
285 286
    saved_transform_present = crtc->transformPresent;

287 288 289 290 291 292 293
    /* Update crtc values up front so the driver can rely on them for mode
     * setting.
     */
    crtc->mode = *mode;
    crtc->x = x;
    crtc->y = y;
    crtc->rotation = rotation;
294
    if (transform) {
295
	RRTransformCopy (&crtc->transform, transform);
296 297 298
	crtc->transformPresent = TRUE;
    } else
	crtc->transformPresent = FALSE;
299

300 301 302 303 304
    if (crtc->funcs->set_mode_major) {
	ret = crtc->funcs->set_mode_major(crtc, mode, rotation, x, y);
	goto done;
    }

305
    didLock = crtc->funcs->lock (crtc);
306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324
    /* Pass our mode to the outputs and the CRTC to give them a chance to
     * adjust it according to limitations or output properties, and also
     * a chance to reject the mode entirely.
     */
    for (i = 0; i < xf86_config->num_output; i++) {
	xf86OutputPtr output = xf86_config->output[i];

	if (output->crtc != crtc)
	    continue;

	if (!output->funcs->mode_fixup(output, mode, adjusted_mode)) {
	    goto done;
	}
    }

    if (!crtc->funcs->mode_fixup(crtc, mode, adjusted_mode)) {
	goto done;
    }

325
    if (!xf86CrtcRotate (crtc))
326 327
	goto done;

Dave Airlie's avatar
Dave Airlie committed
328
    /* Prepare the outputs and CRTCs before setting the mode. */
329 330 331 332 333 334 335
    for (i = 0; i < xf86_config->num_output; i++) {
	xf86OutputPtr output = xf86_config->output[i];

	if (output->crtc != crtc)
	    continue;

	/* Disable the output as the first thing we do. */
Dave Airlie's avatar
Dave Airlie committed
336
	output->funcs->prepare(output);
337 338
    }

Dave Airlie's avatar
Dave Airlie committed
339
    crtc->funcs->prepare(crtc);
340 341 342 343

    /* Set up the DPLL and any output state that needs to adjust or depend
     * on the DPLL.
     */
344
    crtc->funcs->mode_set(crtc, mode, adjusted_mode, crtc->x, crtc->y);
345 346 347 348 349 350 351
    for (i = 0; i < xf86_config->num_output; i++) 
    {
	xf86OutputPtr output = xf86_config->output[i];
	if (output->crtc == crtc)
	    output->funcs->mode_set(output, mode, adjusted_mode);
    }

352
    /* Only upload when needed, to avoid unneeded delays. */
353
    if (!crtc->active && crtc->funcs->gamma_set)
354 355 356
	crtc->funcs->gamma_set(crtc, crtc->gamma_red, crtc->gamma_green,
                                            crtc->gamma_blue, crtc->gamma_size);

357
    /* Now, enable the clocks, plane, pipe, and outputs that we set up. */
Dave Airlie's avatar
Dave Airlie committed
358
    crtc->funcs->commit(crtc);
359 360 361 362
    for (i = 0; i < xf86_config->num_output; i++) 
    {
	xf86OutputPtr output = xf86_config->output[i];
	if (output->crtc == crtc)
Dave Airlie's avatar
Dave Airlie committed
363
	    output->funcs->commit(output);
364 365 366
    }

    ret = TRUE;
367

368
done:
369 370 371 372 373
    if (ret) {
	crtc->active = TRUE;
	if (scrn->pScreen)
	    xf86CrtcSetScreenSubpixelOrder (scrn->pScreen);
    } else {
374 375 376 377
	crtc->x = saved_x;
	crtc->y = saved_y;
	crtc->rotation = saved_rotation;
	crtc->mode = saved_mode;
378 379
	if (saved_transform_present)
	    RRTransformCopy (&crtc->transform, &saved_transform);
380
	crtc->transformPresent = saved_transform_present;
381 382
    }

383
    if (adjusted_mode->name)
384 385
	    free(adjusted_mode->name);
    free(adjusted_mode);
386

387 388 389 390 391 392
    if (didLock)
	crtc->funcs->unlock (crtc);

    return ret;
}

393 394 395 396
/**
 * Sets the given video mode on the given crtc, but without providing
 * a transform
 */
397
Bool
398 399 400 401 402 403
xf86CrtcSetMode (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation,
		 int x, int y)
{
    return xf86CrtcSetModeTransform (crtc, mode, rotation, NULL, x, y);
}

Matthias Hopf's avatar
Matthias Hopf committed
404 405 406
/**
 * Pans the screen, does not change the mode
 */
407
void
408
xf86CrtcSetOrigin (xf86CrtcPtr crtc, int x, int y)
Matthias Hopf's avatar
Matthias Hopf committed
409 410 411
{
    crtc->x = x;
    crtc->y = y;
412 413 414
    if (crtc->funcs->set_origin) {
	if (!xf86CrtcRotate (crtc))
	    return;
415
	crtc->funcs->set_origin (crtc, x, y);
416
    }
Matthias Hopf's avatar
Matthias Hopf committed
417 418 419 420
    else
	xf86CrtcSetMode (crtc, &crtc->mode, crtc->rotation, x, y);
}

421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438
/*
 * Output functions
 */

extern XF86ConfigPtr xf86configptr;

typedef enum {
    OPTION_PREFERRED_MODE,
    OPTION_POSITION,
    OPTION_BELOW,
    OPTION_RIGHT_OF,
    OPTION_ABOVE,
    OPTION_LEFT_OF,
    OPTION_ENABLE,
    OPTION_DISABLE,
    OPTION_MIN_CLOCK,
    OPTION_MAX_CLOCK,
    OPTION_IGNORE,
439
    OPTION_ROTATE,
440
    OPTION_PANNING,
441
    OPTION_PRIMARY,
442
    OPTION_DEFAULT_MODES,
443 444 445 446 447 448 449 450 451 452 453 454 455 456
} OutputOpts;

static OptionInfoRec xf86OutputOptions[] = {
    {OPTION_PREFERRED_MODE, "PreferredMode",	OPTV_STRING,  {0}, FALSE },
    {OPTION_POSITION,	    "Position",		OPTV_STRING,  {0}, FALSE },
    {OPTION_BELOW,	    "Below",		OPTV_STRING,  {0}, FALSE },
    {OPTION_RIGHT_OF,	    "RightOf",		OPTV_STRING,  {0}, FALSE },
    {OPTION_ABOVE,	    "Above",		OPTV_STRING,  {0}, FALSE },
    {OPTION_LEFT_OF,	    "LeftOf",		OPTV_STRING,  {0}, FALSE },
    {OPTION_ENABLE,	    "Enable",		OPTV_BOOLEAN, {0}, FALSE },
    {OPTION_DISABLE,	    "Disable",		OPTV_BOOLEAN, {0}, FALSE },
    {OPTION_MIN_CLOCK,	    "MinClock",		OPTV_FREQ,    {0}, FALSE },
    {OPTION_MAX_CLOCK,	    "MaxClock",		OPTV_FREQ,    {0}, FALSE },
    {OPTION_IGNORE,	    "Ignore",		OPTV_BOOLEAN, {0}, FALSE },
457
    {OPTION_ROTATE,	    "Rotate",		OPTV_STRING,  {0}, FALSE },
458
    {OPTION_PANNING,	    "Panning",		OPTV_STRING,  {0}, FALSE },
459
    {OPTION_PRIMARY,	    "Primary",		OPTV_BOOLEAN, {0}, FALSE },
460
    {OPTION_DEFAULT_MODES,  "DefaultModes",	OPTV_BOOLEAN, {0}, FALSE },
461 462 463
    {-1,		    NULL,		OPTV_NONE,    {0}, FALSE },
};

464 465 466 467 468
enum {
    OPTION_MODEDEBUG,
};

static OptionInfoRec xf86DeviceOptions[] = {
469
    {OPTION_MODEDEBUG,	    "ModeDebug",	OPTV_BOOLEAN,  {0}, FALSE },
470 471 472
    {-1,		    NULL,		OPTV_NONE,    {0}, FALSE },
};

473 474 475 476 477 478 479 480 481 482 483
static void
xf86OutputSetMonitor (xf86OutputPtr output)
{
    char    *option_name;
    static const char monitor_prefix[] = "monitor-";
    char    *monitor;

    if (!output->name)
	return;

    if (output->options)
484
	free(output->options);
485 486 487 488 489 490 491 492 493 494 495 496 497

    output->options = xnfalloc (sizeof (xf86OutputOptions));
    memcpy (output->options, xf86OutputOptions, sizeof (xf86OutputOptions));
    
    option_name = xnfalloc (strlen (monitor_prefix) +
			    strlen (output->name) + 1);
    strcpy (option_name, monitor_prefix);
    strcat (option_name, output->name);
    monitor = xf86findOptionValue (output->scrn->options, option_name);
    if (!monitor)
	monitor = output->name;
    else
	xf86MarkOptionUsedByName (output->scrn->options, option_name);
498
    free(option_name);
499 500
    output->conf_monitor = xf86findMonitor (monitor,
					    xf86configptr->conf_monitor_lst);
501 502 503 504 505 506
    /*
     * Find the monitor section of the screen and use that
     */
    if (!output->conf_monitor && output->use_screen_monitor)
	output->conf_monitor = xf86findMonitor (output->scrn->monitor->id,
						xf86configptr->conf_monitor_lst);
507
    if (output->conf_monitor)
508 509 510 511
    {
	xf86DrvMsg (output->scrn->scrnIndex, X_INFO,
		    "Output %s using monitor section %s\n",
		    output->name, output->conf_monitor->mon_identifier);
512 513 514
	xf86ProcessOptions (output->scrn->scrnIndex,
			    output->conf_monitor->mon_option_lst,
			    output->options);
515 516 517 518 519
    }
    else
	xf86DrvMsg (output->scrn->scrnIndex, X_INFO,
		    "Output %s has no monitor section\n",
		    output->name);
520 521 522
}

static Bool
523
xf86OutputEnabled (xf86OutputPtr output, Bool strict)
524
{
525 526 527 528 529 530 531 532 533 534 535
    Bool    enable, disable;

    /* check to see if this output was enabled in the config file */
    if (xf86GetOptValBool (output->options, OPTION_ENABLE, &enable) && enable)
    {
	xf86DrvMsg (output->scrn->scrnIndex, X_INFO,
		    "Output %s enabled by config file\n", output->name);
	return TRUE;
    }
    /* or if this output was disabled in the config file */
    if (xf86GetOptValBool (output->options, OPTION_DISABLE, &disable) && disable)
536
    {
537 538
	xf86DrvMsg (output->scrn->scrnIndex, X_INFO,
		    "Output %s disabled by config file\n", output->name);
539 540
	return FALSE;
    }
541 542 543 544 545 546 547 548 549 550

    /* If not, try to only light up the ones we know are connected */
    if (strict) {
	enable = output->status == XF86OutputStatusConnected;
    }
    /* But if that fails, try to light up even outputs we're unsure of */
    else {
	enable = output->status != XF86OutputStatusDisconnected;
    }

551 552 553
    xf86DrvMsg (output->scrn->scrnIndex, X_INFO,
    	    "Output %s %sconnected\n", output->name, enable ? "" : "dis");
    return enable;
554 555 556 557 558 559 560 561
}

static Bool
xf86OutputIgnored (xf86OutputPtr    output)
{
    return xf86ReturnOptValBool (output->options, OPTION_IGNORE, FALSE);
}

562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584
static char *direction[4] = {
    "normal", 
    "left", 
    "inverted", 
    "right"
};

static Rotation
xf86OutputInitialRotation (xf86OutputPtr output)
{
    char    *rotate_name = xf86GetOptValString (output->options, 
						OPTION_ROTATE);
    int	    i;

    if (!rotate_name)
	return RR_Rotate_0;
    
    for (i = 0; i < 4; i++)
	if (xf86nameCompare (direction[i], rotate_name) == 0)
	    return (1 << i);
    return RR_Rotate_0;
}

585
xf86OutputPtr
586
xf86OutputCreate (ScrnInfoPtr		    scrn,
587
		  const xf86OutputFuncsRec  *funcs,
588 589 590 591 592
		  const char		    *name)
{
    xf86OutputPtr	output, *outputs;
    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
    int			len;
593
    Bool		primary;
594 595 596 597 598 599

    if (name)
	len = strlen (name) + 1;
    else
	len = 0;

600
    output = calloc(sizeof (xf86OutputRec) + len, 1);
601 602 603 604 605 606 607 608 609 610
    if (!output)
	return NULL;
    output->scrn = scrn;
    output->funcs = funcs;
    if (name)
    {
	output->name = (char *) (output + 1);
	strcpy (output->name, name);
    }
    output->subpixel_order = SubPixelUnknown;
611 612 613 614
    /*
     * Use the old per-screen monitor section for the first output
     */
    output->use_screen_monitor = (xf86_config->num_output == 0);
615 616 617 618 619 620 621 622
#ifdef RANDR_12_INTERFACE
    output->randr_output = NULL;
#endif
    if (name)
    {
	xf86OutputSetMonitor (output);
	if (xf86OutputIgnored (output))
	{
623
	    free(output);
624 625 626 627 628 629
	    return FALSE;
	}
    }
    
    
    if (xf86_config->output)
630
	outputs = realloc(xf86_config->output,
631 632
			  (xf86_config->num_output + 1) * sizeof (xf86OutputPtr));
    else
633
	outputs = malloc((xf86_config->num_output + 1) * sizeof (xf86OutputPtr));
634 635
    if (!outputs)
    {
636
	free(output);
637 638
	return NULL;
    }
639

640
    xf86_config->output = outputs;
641 642 643 644 645 646 647 648 649 650 651 652 653 654

    if (xf86GetOptValBool (output->options, OPTION_PRIMARY, &primary) && primary)
    {
	memmove(xf86_config->output + 1, xf86_config->output,
		xf86_config->num_output * sizeof (xf86OutputPtr));
	xf86_config->output[0] = output;
    }
    else
    {
	xf86_config->output[xf86_config->num_output] = output;
    }

    xf86_config->num_output++;

655 656 657
    return output;
}

658
Bool
659 660 661
xf86OutputRename (xf86OutputPtr output, const char *name)
{
    int	    len = strlen(name) + 1;
662
    char    *newname = malloc(len);
663 664 665 666 667 668
    
    if (!newname)
	return FALSE;	/* so sorry... */
    
    strcpy (newname, name);
    if (output->name && output->name != (char *) (output + 1))
669
	free(output->name);
670 671 672 673 674 675 676
    output->name = newname;
    xf86OutputSetMonitor (output);
    if (xf86OutputIgnored (output))
	return FALSE;
    return TRUE;
}

677
void
678 679 680 681 682 683 684 685 686
xf86OutputUseScreenMonitor (xf86OutputPtr output, Bool use_screen_monitor)
{
    if (use_screen_monitor != output->use_screen_monitor)
    {
	output->use_screen_monitor = use_screen_monitor;
	xf86OutputSetMonitor (output);
    }
}

687
void
688 689 690 691 692 693 694 695 696 697 698 699 700 701
xf86OutputDestroy (xf86OutputPtr output)
{
    ScrnInfoPtr		scrn = output->scrn;
    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
    int			o;
    
    (*output->funcs->destroy) (output);
    while (output->probed_modes)
	xf86DeleteMode (&output->probed_modes, output->probed_modes);
    for (o = 0; o < xf86_config->num_output; o++)
	if (xf86_config->output[o] == output)
	{
	    memmove (&xf86_config->output[o],
		     &xf86_config->output[o+1],
702
		     ((xf86_config->num_output - (o + 1)) * sizeof(void*)));
703 704 705 706
	    xf86_config->num_output--;
	    break;
	}
    if (output->name && output->name != (char *) (output + 1))
707 708
	free(output->name);
    free(output);
709 710
}

711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730
/*
 * Called during CreateScreenResources to hook up RandR
 */
static Bool
xf86CrtcCreateScreenResources (ScreenPtr screen)
{
    ScrnInfoPtr		scrn = xf86Screens[screen->myNum];
    xf86CrtcConfigPtr	config = XF86_CRTC_CONFIG_PTR(scrn);

    screen->CreateScreenResources = config->CreateScreenResources;
    
    if (!(*screen->CreateScreenResources)(screen))
	return FALSE;

    if (!xf86RandR12CreateScreenResources (screen))
	return FALSE;

    return TRUE;
}

731 732 733 734 735 736 737 738
/*
 * Clean up config on server reset
 */
static Bool
xf86CrtcCloseScreen (int index, ScreenPtr screen)
{
    ScrnInfoPtr		scrn = xf86Screens[screen->myNum];
    xf86CrtcConfigPtr	config = XF86_CRTC_CONFIG_PTR(scrn);
739
    int			o, c;
740 741 742 743 744
    
    screen->CloseScreen = config->CloseScreen;

    xf86RotateCloseScreen (screen);

745 746 747 748 749 750 751 752 753 754 755 756
    for (o = 0; o < config->num_output; o++)
    {
	xf86OutputPtr	output = config->output[o];

	output->randr_output = NULL;
    }
    for (c = 0; c < config->num_crtc; c++)
    {
	xf86CrtcPtr	crtc = config->crtc[c];

	crtc->randr_crtc = NULL;
    }
757 758 759
    return screen->CloseScreen (index, screen);
}

760 761 762
/*
 * Called at ScreenInit time to set up
 */
763 764 765 766 767
#ifdef RANDR_13_INTERFACE
int
#else
Bool
#endif
768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786
xf86CrtcScreenInit (ScreenPtr screen)
{
    ScrnInfoPtr		scrn = xf86Screens[screen->myNum];
    xf86CrtcConfigPtr	config = XF86_CRTC_CONFIG_PTR(scrn);
    int			c;

    /* Rotation */
    xf86DrvMsg(scrn->scrnIndex, X_INFO, "RandR 1.2 enabled, ignore the following RandR disabled message.\n");
    xf86DisableRandR(); /* Disable old RandR extension support */
    xf86RandR12Init (screen);

    /* support all rotations if every crtc has the shadow alloc funcs */
    for (c = 0; c < config->num_crtc; c++)
    {
	xf86CrtcPtr crtc = config->crtc[c];
	if (!crtc->funcs->shadow_allocate || !crtc->funcs->shadow_create)
	    break;
    }
    if (c == config->num_crtc)
787
    {
788
	xf86RandR12SetRotations (screen, RR_Rotate_0 | RR_Rotate_90 |
Keith Packard's avatar
Keith Packard committed
789 790
				 RR_Rotate_180 | RR_Rotate_270 |
				 RR_Reflect_X | RR_Reflect_Y);
791
	xf86RandR12SetTransformSupport (screen, TRUE);
792
    }
793
    else
794
    {
795
	xf86RandR12SetRotations (screen, RR_Rotate_0);
796
	xf86RandR12SetTransformSupport (screen, FALSE);
797
    }
798 799 800 801
    
    /* Wrap CreateScreenResources so we can initialize the RandR code */
    config->CreateScreenResources = screen->CreateScreenResources;
    screen->CreateScreenResources = xf86CrtcCreateScreenResources;
802 803 804 805

    config->CloseScreen = screen->CloseScreen;
    screen->CloseScreen = xf86CrtcCloseScreen;
    
806
#ifdef XFreeXDGA
Keith Packard's avatar
Keith Packard committed
807
    _xf86_di_dga_init_internal(screen);
808
#endif
809 810 811
#ifdef RANDR_13_INTERFACE
    return RANDR_INTERFACE_VERSION;
#else
812
    return TRUE;
813
#endif
814 815
}

816 817 818 819 820 821 822 823 824 825 826
static DisplayModePtr
xf86DefaultMode (xf86OutputPtr output, int width, int height)
{
    DisplayModePtr  target_mode = NULL;
    DisplayModePtr  mode;
    int		    target_diff = 0;
    int		    target_preferred = 0;
    int		    mm_height;
    
    mm_height = output->mm_height;
    if (!mm_height)
827
	mm_height = (768 * 25.4) / DEFAULT_DPI;
828
    /*
829
     * Pick a mode closest to DEFAULT_DPI
830 831 832 833
     */
    for (mode = output->probed_modes; mode; mode = mode->next)
    {
	int	    dpi;
834 835
	int	    preferred = (((mode->type & M_T_PREFERRED) != 0) +
				 ((mode->type & M_T_USERPREF) != 0));
836 837
	int	    diff;

838 839 840 841 842 843
	if (xf86ModeWidth (mode, output->initial_rotation) > width ||
	    xf86ModeHeight (mode, output->initial_rotation) > height)
	    continue;
	
	/* yes, use VDisplay here, not xf86ModeHeight */
	dpi = (mode->VDisplay * 254) / (mm_height * 10);
844
	diff = dpi - DEFAULT_DPI;
845 846 847 848 849 850 851 852 853 854 855 856 857
	diff = diff < 0 ? -diff : diff;
	if (target_mode == NULL || (preferred > target_preferred) ||
	    (preferred == target_preferred && diff < target_diff))
	{
	    target_mode = mode;
	    target_diff = diff;
	    target_preferred = preferred;
	}
    }
    return target_mode;
}

static DisplayModePtr
858 859
xf86ClosestMode (xf86OutputPtr output, 
		 DisplayModePtr match, Rotation match_rotation,
860 861 862 863 864 865 866 867 868 869 870 871 872 873
		 int width, int height)
{
    DisplayModePtr  target_mode = NULL;
    DisplayModePtr  mode;
    int		    target_diff = 0;
    
    /*
     * Pick a mode closest to the specified mode
     */
    for (mode = output->probed_modes; mode; mode = mode->next)
    {
	int	    dx, dy;
	int	    diff;

874 875 876
	if (xf86ModeWidth (mode, output->initial_rotation) > width ||
	    xf86ModeHeight (mode, output->initial_rotation) > height)
	    continue;
877 878
	
	/* exact matches are preferred */
879 880
	if (output->initial_rotation == match_rotation &&
	    xf86ModesEqual (mode, match))
881 882
	    return mode;
	
883 884
	dx = xf86ModeWidth (match, match_rotation) - xf86ModeWidth (mode, output->initial_rotation);
	dy = xf86ModeHeight (match, match_rotation) - xf86ModeHeight (mode, output->initial_rotation);
885 886 887 888 889 890 891 892 893 894
	diff = dx * dx + dy * dy;
	if (target_mode == NULL || diff < target_diff)
	{
	    target_mode = mode;
	    target_diff = diff;
	}
    }
    return target_mode;
}

895
static DisplayModePtr
896 897 898 899 900 901
xf86OutputHasPreferredMode (xf86OutputPtr output, int width, int height)
{
    DisplayModePtr  mode;

    for (mode = output->probed_modes; mode; mode = mode->next)
    {
902 903 904 905
	if (xf86ModeWidth (mode, output->initial_rotation) > width ||
	    xf86ModeHeight (mode, output->initial_rotation) > height)
	    continue;

906
	if (mode->type & M_T_PREFERRED)
907
	    return mode;
908
    }
909 910 911 912 913 914 915 916 917 918 919 920 921
    return NULL;
}

static DisplayModePtr
xf86OutputHasUserPreferredMode (xf86OutputPtr output)
{
    DisplayModePtr mode, first = output->probed_modes;

    for (mode = first; mode && mode->next != first; mode = mode->next)
	if (mode->type & M_T_USERPREF)
	    return mode;

    return NULL;
922 923 924 925 926 927 928 929 930 931 932
}

static int
xf86PickCrtcs (ScrnInfoPtr	scrn,
	       xf86CrtcPtr	*best_crtcs,
	       DisplayModePtr	*modes,
	       int		n,
	       int		width,
	       int		height)
{
    xf86CrtcConfigPtr	config = XF86_CRTC_CONFIG_PTR(scrn);
933
    int		    c, o;
934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954
    xf86OutputPtr   output;
    xf86CrtcPtr	    crtc;
    xf86CrtcPtr	    *crtcs;
    xf86CrtcPtr	    best_crtc;
    int		    best_score;
    int		    score;
    int		    my_score;
    
    if (n == config->num_output)
	return 0;
    output = config->output[n];
    
    /*
     * Compute score with this output disabled
     */
    best_crtcs[n] = NULL;
    best_crtc = NULL;
    best_score = xf86PickCrtcs (scrn, best_crtcs, modes, n+1, width, height);
    if (modes[n] == NULL)
	return best_score;
    
955
    crtcs = malloc(config->num_output * sizeof (xf86CrtcPtr));
956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990
    if (!crtcs)
	return best_score;

    my_score = 1;
    /* Score outputs that are known to be connected higher */
    if (output->status == XF86OutputStatusConnected)
	my_score++;
    /* Score outputs with preferred modes higher */
    if (xf86OutputHasPreferredMode (output, width, height))
	my_score++;
    /*
     * Select a crtc for this output and
     * then attempt to configure the remaining
     * outputs
     */
    for (c = 0; c < config->num_crtc; c++)
    {
	if ((output->possible_crtcs & (1 << c)) == 0)
	    continue;
	
	crtc = config->crtc[c];
	/*
	 * Check to see if some other output is
	 * using this crtc
	 */
	for (o = 0; o < n; o++)
	    if (best_crtcs[o] == crtc)
		break;
	if (o < n)
	{
	    /*
	     * If the two outputs desire the same mode,
	     * see if they can be cloned
	     */
	    if (xf86ModesEqual (modes[o], modes[n]) &&
Cooper Yuan's avatar
Cooper Yuan committed
991
		config->output[o]->initial_rotation == config->output[n]->initial_rotation &&
992 993 994
		config->output[o]->initial_x == config->output[n]->initial_x &&
		config->output[o]->initial_y == config->output[n]->initial_y)
	    {
995
		if ((output->possible_clones & (1 << o)) == 0)
996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010
		    continue;		/* nope, try next CRTC */
	    }
	    else
		continue;		/* different modes, can't clone */
	}
	crtcs[n] = crtc;
	memcpy (crtcs, best_crtcs, n * sizeof (xf86CrtcPtr));
	score = my_score + xf86PickCrtcs (scrn, crtcs, modes, n+1, width, height);
	if (score > best_score)
	{
	    best_crtc = crtc;
	    best_score = score;
	    memcpy (best_crtcs, crtcs, config->num_output * sizeof (xf86CrtcPtr));
	}
    }
1011
    free(crtcs);
1012 1013 1014 1015 1016 1017
    return best_score;
}


/*
 * Compute the virtual size necessary to place all of the available
1018 1019 1020 1021 1022
 * crtcs in the specified configuration.
 *
 * canGrow indicates that the driver can make the screen larger than its initial
 * configuration.  If FALSE, this function will enlarge the screen to include
 * the largest available mode.
1023 1024 1025
 */

static void
1026 1027
xf86DefaultScreenLimits (ScrnInfoPtr scrn, int *widthp, int *heightp,
			 Bool canGrow)
1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041
{
    xf86CrtcConfigPtr	config = XF86_CRTC_CONFIG_PTR(scrn);
    int	    width = 0, height = 0;
    int	    o;
    int	    c;
    int	    s;

    for (c = 0; c < config->num_crtc; c++)
    {
	int	    crtc_width = 0, crtc_height = 0;
	xf86CrtcPtr crtc = config->crtc[c];

	if (crtc->enabled)
	{
1042 1043
	    crtc_width = crtc->x + xf86ModeWidth (&crtc->desiredMode, crtc->desiredRotation);
	    crtc_height = crtc->y + xf86ModeHeight (&crtc->desiredMode, crtc->desiredRotation);
1044
	}
1045 1046 1047 1048
	if (!canGrow) {
	    for (o = 0; o < config->num_output; o++)
	    {
		xf86OutputPtr   output = config->output[o];
1049

1050 1051
		for (s = 0; s < config->num_crtc; s++)
		    if (output->possible_crtcs & (1 << s))
1052
		    {
1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064
			DisplayModePtr  mode;
			for (mode = output->probed_modes; mode; mode = mode->next)
			{
			    if (mode->HDisplay > crtc_width)
				crtc_width = mode->HDisplay;
			    if (mode->VDisplay > crtc_width)
				crtc_width = mode->VDisplay;
			    if (mode->VDisplay > crtc_height)
				crtc_height = mode->VDisplay;
			    if (mode->HDisplay > crtc_height)
				crtc_height = mode->HDisplay;
			}
1065
		    }
1066
	    }
1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082
	}
	if (crtc_width > width)
	    width = crtc_width;
	if (crtc_height > height)
	    height = crtc_height;
    }
    if (config->maxWidth && width > config->maxWidth) width = config->maxWidth;
    if (config->maxHeight && height > config->maxHeight) height = config->maxHeight;
    if (config->minWidth && width < config->minWidth) width = config->minWidth;
    if (config->minHeight && height < config->minHeight) height = config->minHeight;
    *widthp = width;
    *heightp = height;
}

#define POSITION_UNSET	-100000

1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130
/*
 * check if the user configured any outputs at all 
 * with either a position or a relative setting or a mode.
 */
static Bool
xf86UserConfiguredOutputs(ScrnInfoPtr scrn, DisplayModePtr *modes)
{
    xf86CrtcConfigPtr	config = XF86_CRTC_CONFIG_PTR(scrn);
    int o;
    Bool user_conf = FALSE;

    for (o = 0; o < config->num_output; o++)
    {
	xf86OutputPtr output = config->output[o];
	char	    *position;
	char	    *relative_name;
	OutputOpts	    relation;
	int r;
	static const OutputOpts	relations[] = {
	    OPTION_BELOW, OPTION_RIGHT_OF, OPTION_ABOVE, OPTION_LEFT_OF
	};

	position = xf86GetOptValString (output->options,
					OPTION_POSITION);
	if (position)
	    user_conf = TRUE;

	relation = 0;
	relative_name = NULL;
	for (r = 0; r < 4; r++)
	{
	    relation = relations[r];
	    relative_name = xf86GetOptValString (output->options,
						     relation);
	    if (relative_name)
		break;
	}
	if (relative_name)
	    user_conf = TRUE;

	modes[o] = xf86OutputHasUserPreferredMode(output);
	if (modes[o])
	    user_conf = TRUE;
    }

    return user_conf;
}

1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212
static Bool
xf86InitialOutputPositions (ScrnInfoPtr scrn, DisplayModePtr *modes)
{
    xf86CrtcConfigPtr	config = XF86_CRTC_CONFIG_PTR(scrn);
    int			o;
    int			min_x, min_y;
    
    for (o = 0; o < config->num_output; o++)
    {
	xf86OutputPtr	output = config->output[o];

	output->initial_x = output->initial_y = POSITION_UNSET;
    }
    
    /*
     * Loop until all outputs are set
     */
    for (;;)
    {
	Bool	any_set = FALSE;
	Bool	keep_going = FALSE;

	for (o = 0; o < config->num_output; o++)	
	{
	    static const OutputOpts	relations[] = {
		OPTION_BELOW, OPTION_RIGHT_OF, OPTION_ABOVE, OPTION_LEFT_OF
	    };
	    xf86OutputPtr   output = config->output[o];
	    xf86OutputPtr   relative;
	    char	    *relative_name;
	    char	    *position;
	    OutputOpts	    relation;
	    int		    r;

	    if (output->initial_x != POSITION_UNSET)
		continue;
	    position = xf86GetOptValString (output->options,
					    OPTION_POSITION);
	    /*
	     * Absolute position wins
	     */
	    if (position)
	    {
		int		    x, y;
		if (sscanf (position, "%d %d", &x, &y) == 2)
		{
		    output->initial_x = x;
		    output->initial_y = y;
		}
		else
		{
		    xf86DrvMsg (scrn->scrnIndex, X_ERROR,
				"Output %s position not of form \"x y\"\n",
				output->name);
		    output->initial_x = output->initial_y = 0;
		}
		any_set = TRUE;
		continue;
	    }
	    /*
	     * Next comes relative positions
	     */
	    relation = 0;
	    relative_name = NULL;
	    for (r = 0; r < 4; r++)
	    {
		relation = relations[r];
		relative_name = xf86GetOptValString (output->options,
						     relation);
		if (relative_name)
		    break;
	    }
	    if (relative_name)
	    {
		int or;
		relative = NULL;
		for (or = 0; or < config->num_output; or++)
		{
		    xf86OutputPtr	out_rel = config->output[or];
		    XF86ConfMonitorPtr	rel_mon = out_rel->conf_monitor;

		    if (rel_mon)
1213 1214 1215 1216 1217 1218 1219 1220 1221
		    {
			if (xf86nameCompare (rel_mon->mon_identifier,
					      relative_name) == 0)
			{
			    relative = config->output[or];
			    break;
			}
		    }
		    if (strcmp (out_rel->name, relative_name) == 0)
1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236
		    {
			relative = config->output[or];
			break;
		    }
		}
		if (!relative)
		{
		    xf86DrvMsg (scrn->scrnIndex, X_ERROR,
				"Cannot position output %s relative to unknown output %s\n",
				output->name, relative_name);
		    output->initial_x = 0;
		    output->initial_y = 0;
		    any_set = TRUE;
		    continue;
		}
1237 1238 1239 1240 1241 1242 1243 1244 1245 1246
		if (!modes[or])
		{
		    xf86DrvMsg (scrn->scrnIndex, X_ERROR,
				"Cannot position output %s relative to output %s without modes\n",
				output->name, relative_name);
		    output->initial_x = 0;
		    output->initial_y = 0;
		    any_set = TRUE;
		    continue;
		}
1247 1248 1249 1250 1251 1252 1253 1254 1255
		if (relative->initial_x == POSITION_UNSET)
		{
		    keep_going = TRUE;
		    continue;
		}
		output->initial_x = relative->initial_x;
		output->initial_y = relative->initial_y;
		switch (relation) {
		case OPTION_BELOW:
1256
		    output->initial_y += xf86ModeHeight (modes[or], relative->initial_rotation);
1257 1258
		    break;
		case OPTION_RIGHT_OF:
1259
		    output->initial_x += xf86ModeWidth (modes[or], relative->initial_rotation);
1260 1261
		    break;
		case OPTION_ABOVE:
1262 1263
		    if (modes[o])
			output->initial_y -= xf86ModeHeight (modes[o], output->initial_rotation);
1264 1265
		    break;
		case OPTION_LEFT_OF:
1266 1267
		    if (modes[o])
			output->initial_x -= xf86ModeWidth (modes[o], output->initial_rotation);
1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324
		    break;
		default:
		    break;
		}
		any_set = TRUE;
		continue;
	    }
	    
	    /* Nothing set, just stick them at 0,0 */
	    output->initial_x = 0;
	    output->initial_y = 0;
	    any_set = TRUE;
	}
	if (!keep_going)
	    break;
	if (!any_set) 
	{
	    for (o = 0; o < config->num_output; o++)
	    {
		xf86OutputPtr   output = config->output[o];
		if (output->initial_x == POSITION_UNSET)
		{
		    xf86DrvMsg (scrn->scrnIndex, X_ERROR,
				"Output position loop. Moving %s to 0,0\n",
				output->name);
		    output->initial_x = output->initial_y = 0;
		    break;
		}
	    }
	}
    }

    /*
     * normalize positions
     */
    min_x = 1000000;
    min_y = 1000000;
    for (o = 0; o < config->num_output; o++)
    {
	xf86OutputPtr	output = config->output[o];

	if (output->initial_x < min_x)
	    min_x = output->initial_x;
	if (output->initial_y < min_y)
	    min_y = output->initial_y;
    }
    
    for (o = 0; o < config->num_output; o++)
    {
	xf86OutputPtr	output = config->output[o];

	output->initial_x -= min_x;
	output->initial_y -= min_y;
    }
    return TRUE;
}

1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350
static void
xf86InitialPanning (ScrnInfoPtr scrn)
{
    xf86CrtcConfigPtr	config = XF86_CRTC_CONFIG_PTR(scrn);
    int			o;
    
    for (o = 0; o < config->num_output; o++)
    {
	xf86OutputPtr	output = config->output[o];
	char	       *panning = xf86GetOptValString (output->options, OPTION_PANNING);
	int		width, height, left, top;
	int		track_width, track_height, track_left, track_top;
	int		brdr[4];

	memset (&output->initialTotalArea,    0, sizeof(BoxRec));
	memset (&output->initialTrackingArea, 0, sizeof(BoxRec));
	memset (output->initialBorder,        0, 4*sizeof(INT16));

	if (! panning)
	    continue;

	switch (sscanf (panning, "%dx%d+%d+%d/%dx%d+%d+%d/%d/%d/%d/%d",
			&width, &height, &left, &top,
			&track_width, &track_height, &track_left, &track_top,
			&brdr[0], &brdr[1], &brdr[2], &brdr[3])) {
	case 12:
1351 1352 1353 1354
	    output->initialBorder[0] = brdr[0];
	    output->initialBorder[1] = brdr[1];
	    output->initialBorder[2] = brdr[2];
	    output->initialBorder[3] = brdr[3];
1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370
	    /* fall through */
	case 8:
	    output->initialTrackingArea.x1 = track_left;
	    output->initialTrackingArea.y1 = track_top;
	    output->initialTrackingArea.x2 = track_left + track_width;
	    output->initialTrackingArea.y2 = track_top  + track_height;
	    /* fall through */
	case 4:
	    output->initialTotalArea.x1 = left;
	    output->initialTotalArea.y1 = top;
	    /* fall through */
	case 2:
	    output->initialTotalArea.x2 = output->initialTotalArea.x1 + width;
	    output->initialTotalArea.y2 = output->initialTotalArea.y1 + height;
	    break;
	default:
1371
	    xf86DrvMsg (scrn->scrnIndex, X_ERROR,
1372 1373 1374 1375 1376 1377
			"Broken panning specification '%s' for output %s in config file\n",
			panning, output->name);
	}
    }
}

1378