xf86Crtc.c 58 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
/*
 * Copyright © 2006 Keith Packard
 *
 * 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>
25 26 27 28
#else
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
29 30 31 32 33 34 35 36 37 38
#endif

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

#include "xf86.h"
#include "xf86DDC.h"
#include "xf86Crtc.h"
#include "xf86Modes.h"
39
#include "xf86Priv.h"
40 41 42 43 44
#include "xf86RandR12.h"
#include "X11/extensions/render.h"
#define DPMS_SERVER
#include "X11/extensions/dpms.h"
#include "X11/Xatom.h"
45 46 47
#ifdef RENDER
#include "picturestr.h"
#endif
48

49 50
#include "xf86xv.h"

51 52 53 54 55 56
/*
 * Initialize xf86CrtcConfig structure
 */

int xf86CrtcConfigPrivateIndex = -1;

57
_X_EXPORT void
58 59
xf86CrtcConfigInit (ScrnInfoPtr scrn,
		    const xf86CrtcConfigFuncsRec *funcs)
60 61 62 63 64 65
{
    xf86CrtcConfigPtr	config;
    
    if (xf86CrtcConfigPrivateIndex == -1)
	xf86CrtcConfigPrivateIndex = xf86AllocateScrnInfoPrivateIndex();
    config = xnfcalloc (1, sizeof (xf86CrtcConfigRec));
66 67 68

    config->funcs = funcs;

69 70 71
    scrn->privates[xf86CrtcConfigPrivateIndex].ptr = config;
}
 
72
_X_EXPORT void
73 74 75 76 77 78 79 80 81 82 83 84 85 86 87
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
 */
88
_X_EXPORT xf86CrtcPtr
89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119
xf86CrtcCreate (ScrnInfoPtr		scrn,
		const xf86CrtcFuncsRec	*funcs)
{
    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
    xf86CrtcPtr		crtc, *crtcs;

    crtc = xcalloc (sizeof (xf86CrtcRec), 1);
    if (!crtc)
	return NULL;
    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;
    if (xf86_config->crtc)
	crtcs = xrealloc (xf86_config->crtc,
			  (xf86_config->num_crtc + 1) * sizeof (xf86CrtcPtr));
    else
	crtcs = xalloc ((xf86_config->num_crtc + 1) * sizeof (xf86CrtcPtr));
    if (!crtcs)
    {
	xfree (crtc);
	return NULL;
    }
    xf86_config->crtc = crtcs;
    xf86_config->crtc[xf86_config->num_crtc++] = crtc;
    return crtc;
}

120
_X_EXPORT void
121 122 123 124 125 126 127 128 129 130 131
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],
132
		     ((xf86_config->num_crtc - (c + 1)) * sizeof(void*)));
133 134 135 136 137 138 139 140 141 142 143
	    xf86_config->num_crtc--;
	    break;
	}
    xfree (crtc);
}


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

144
_X_EXPORT Bool
145 146 147 148 149 150 151 152 153 154 155 156
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;
}

157
_X_EXPORT void
158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221
xf86CrtcSetScreenSubpixelOrder (ScreenPtr pScreen)
{
#ifdef RENDER
    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);
#endif
}

222 223 224
/**
 * Sets the given video mode on the given crtc
 */
225
_X_EXPORT Bool
226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246
xf86CrtcSetMode (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation,
		 int x, int y)
{
    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;

    crtc->enabled = xf86CrtcInUse (crtc);
    
    if (!crtc->enabled)
    {
	/* XXX disable crtc? */
	return TRUE;
    }

247 248
    adjusted_mode = xf86DuplicateMode(mode);

249 250 251 252 253 254 255 256 257 258 259 260 261 262
    didLock = crtc->funcs->lock (crtc);

    saved_mode = crtc->mode;
    saved_x = crtc->x;
    saved_y = crtc->y;
    saved_rotation = crtc->rotation;
    /* 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;

263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286
    /* Shift offsets that move us out of virtual size */
    if (x + mode->HDisplay > xf86_config->maxWidth ||
	y + mode->VDisplay > xf86_config->maxHeight)
    {
	if (x + mode->HDisplay > xf86_config->maxWidth)
	    crtc->x = xf86_config->maxWidth - mode->HDisplay;
	if (y + mode->VDisplay > xf86_config->maxHeight)
	    crtc->y = xf86_config->maxHeight - mode->VDisplay;
	if (crtc->x < 0 || crtc->y < 0)
	{
	    xf86DrvMsg (scrn->scrnIndex, X_ERROR,
			"Mode %dx%d does not fit virtual size %dx%d - "
			"internal error\n", mode->HDisplay, mode->VDisplay,
			xf86_config->maxWidth, xf86_config->maxHeight);
	    goto done;
	}
	xf86DrvMsg (scrn->scrnIndex, X_ERROR,
		    "Mode %dx%d+%d+%d does not fit virtual size %dx%d - "
		    "offset updated to +%d+%d\n",
		    mode->HDisplay, mode->VDisplay, x, y,
		    xf86_config->maxWidth, xf86_config->maxHeight,
		    crtc->x, crtc->y);
    }

287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311
    /* XXX short-circuit changes to base location only */
    
    /* 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;
    }

    if (!xf86CrtcRotate (crtc, mode, rotation)) {
	goto done;
    }

Dave Airlie's avatar
Dave Airlie committed
312
    /* Prepare the outputs and CRTCs before setting the mode. */
313 314 315 316 317 318 319
    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
320
	output->funcs->prepare(output);
321 322
    }

Dave Airlie's avatar
Dave Airlie committed
323
    crtc->funcs->prepare(crtc);
324 325 326 327

    /* Set up the DPLL and any output state that needs to adjust or depend
     * on the DPLL.
     */
328
    crtc->funcs->mode_set(crtc, mode, adjusted_mode, crtc->x, crtc->y);
329 330 331 332 333 334 335 336
    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);
    }

    /* Now, enable the clocks, plane, pipe, and outputs that we set up. */
Dave Airlie's avatar
Dave Airlie committed
337
    crtc->funcs->commit(crtc);
338 339 340 341
    for (i = 0; i < xf86_config->num_output; i++) 
    {
	xf86OutputPtr output = xf86_config->output[i];
	if (output->crtc == crtc)
342
	{
Dave Airlie's avatar
Dave Airlie committed
343
	    output->funcs->commit(output);
344 345 346 347 348
#ifdef RANDR_12_INTERFACE
	    if (output->randr_output)
		RRPostPendingProperties (output->randr_output);
#endif
	}
349 350 351 352
    }

    /* XXX free adjustedmode */
    ret = TRUE;
353 354
    if (scrn->pScreen)
	xf86CrtcSetScreenSubpixelOrder (scrn->pScreen);
355

356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387
done:
    if (!ret) {
	crtc->x = saved_x;
	crtc->y = saved_y;
	crtc->rotation = saved_rotation;
	crtc->mode = saved_mode;
    }

    if (didLock)
	crtc->funcs->unlock (crtc);

    return ret;
}

/*
 * 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,
388
    OPTION_ROTATE,
389 390 391 392 393 394 395 396 397 398 399 400 401 402
} 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 },
403
    {OPTION_ROTATE,	    "Rotate",		OPTV_STRING,  {0}, FALSE },
404 405 406
    {-1,		    NULL,		OPTV_NONE,    {0}, FALSE },
};

407 408 409 410 411 412 413 414 415
enum {
    OPTION_MODEDEBUG,
};

static OptionInfoRec xf86DeviceOptions[] = {
    {OPTION_MODEDEBUG,	    "ModeDebug",	OPTV_STRING,  {0}, FALSE },
    {-1,		    NULL,		OPTV_NONE,    {0}, FALSE },
};

416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443
static void
xf86OutputSetMonitor (xf86OutputPtr output)
{
    char    *option_name;
    static const char monitor_prefix[] = "monitor-";
    char    *monitor;

    if (!output->name)
	return;

    if (output->options)
	xfree (output->options);

    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);
    xfree (option_name);
    output->conf_monitor = xf86findMonitor (monitor,
					    xf86configptr->conf_monitor_lst);
444 445 446 447 448 449
    /*
     * 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);
450
    if (output->conf_monitor)
451 452 453 454
    {
	xf86DrvMsg (output->scrn->scrnIndex, X_INFO,
		    "Output %s using monitor section %s\n",
		    output->name, output->conf_monitor->mon_identifier);
455 456 457
	xf86ProcessOptions (output->scrn->scrnIndex,
			    output->conf_monitor->mon_option_lst,
			    output->options);
458 459 460 461 462
    }
    else
	xf86DrvMsg (output->scrn->scrnIndex, X_INFO,
		    "Output %s has no monitor section\n",
		    output->name);
463 464 465
}

static Bool
466
xf86OutputEnabled (xf86OutputPtr output)
467
{
468 469 470 471 472 473 474 475 476 477 478
    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)
479
    {
480 481
	xf86DrvMsg (output->scrn->scrnIndex, X_INFO,
		    "Output %s disabled by config file\n", output->name);
482 483
	return FALSE;
    }
484 485 486 487 488
    /* otherwise, enable if it is not disconnected */
    enable = output->status != XF86OutputStatusDisconnected;
    xf86DrvMsg (output->scrn->scrnIndex, X_INFO,
    	    "Output %s %sconnected\n", output->name, enable ? "" : "dis");
    return enable;
489 490 491 492 493 494 495 496
}

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

497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519
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;
}

520
_X_EXPORT xf86OutputPtr
521
xf86OutputCreate (ScrnInfoPtr		    scrn,
522
		  const xf86OutputFuncsRec  *funcs,
523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544
		  const char		    *name)
{
    xf86OutputPtr	output, *outputs;
    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
    int			len;

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

    output = xcalloc (sizeof (xf86OutputRec) + len, 1);
    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;
545 546 547 548
    /*
     * Use the old per-screen monitor section for the first output
     */
    output->use_screen_monitor = (xf86_config->num_output == 0);
549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579
#ifdef RANDR_12_INTERFACE
    output->randr_output = NULL;
#endif
    if (name)
    {
	xf86OutputSetMonitor (output);
	if (xf86OutputIgnored (output))
	{
	    xfree (output);
	    return FALSE;
	}
    }
    
    
    if (xf86_config->output)
	outputs = xrealloc (xf86_config->output,
			  (xf86_config->num_output + 1) * sizeof (xf86OutputPtr));
    else
	outputs = xalloc ((xf86_config->num_output + 1) * sizeof (xf86OutputPtr));
    if (!outputs)
    {
	xfree (output);
	return NULL;
    }
    
    xf86_config->output = outputs;
    xf86_config->output[xf86_config->num_output++] = output;
    
    return output;
}

580
_X_EXPORT Bool
581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598
xf86OutputRename (xf86OutputPtr output, const char *name)
{
    int	    len = strlen(name) + 1;
    char    *newname = xalloc (len);
    
    if (!newname)
	return FALSE;	/* so sorry... */
    
    strcpy (newname, name);
    if (output->name && output->name != (char *) (output + 1))
	xfree (output->name);
    output->name = newname;
    xf86OutputSetMonitor (output);
    if (xf86OutputIgnored (output))
	return FALSE;
    return TRUE;
}

599
_X_EXPORT void
600 601 602 603 604 605 606 607 608
xf86OutputUseScreenMonitor (xf86OutputPtr output, Bool use_screen_monitor)
{
    if (use_screen_monitor != output->use_screen_monitor)
    {
	output->use_screen_monitor = use_screen_monitor;
	xf86OutputSetMonitor (output);
    }
}

609
_X_EXPORT void
610 611 612 613 614 615 616 617 618 619 620 621 622 623
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],
624
		     ((xf86_config->num_output - (o + 1)) * sizeof(void*)));
625 626 627 628 629 630 631 632
	    xf86_config->num_output--;
	    break;
	}
    if (output->name && output->name != (char *) (output + 1))
	xfree (output->name);
    xfree (output);
}

633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652
/*
 * 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;
}

653 654 655 656 657 658 659 660
/*
 * 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);
661
    int			o, c;
662 663 664 665 666
    
    screen->CloseScreen = config->CloseScreen;

    xf86RotateCloseScreen (screen);

667 668 669 670 671 672 673 674 675 676 677 678
    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;
    }
679 680 681
    return screen->CloseScreen (index, screen);
}

682 683 684
/*
 * Called at ScreenInit time to set up
 */
685
_X_EXPORT Bool
686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705
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)
	xf86RandR12SetRotations (screen, RR_Rotate_0 | RR_Rotate_90 |
Keith Packard's avatar
Keith Packard committed
706 707
				 RR_Rotate_180 | RR_Rotate_270 |
				 RR_Reflect_X | RR_Reflect_Y);
708 709 710 711 712 713
    else
	xf86RandR12SetRotations (screen, RR_Rotate_0);
    
    /* Wrap CreateScreenResources so we can initialize the RandR code */
    config->CreateScreenResources = screen->CreateScreenResources;
    screen->CreateScreenResources = xf86CrtcCreateScreenResources;
714 715 716 717

    config->CloseScreen = screen->CloseScreen;
    screen->CloseScreen = xf86CrtcCloseScreen;
    
718 719 720
    return TRUE;
}

721 722 723 724 725 726 727 728 729 730 731
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)
732
	mm_height = (768 * 25.4) / DEFAULT_DPI;
733
    /*
734
     * Pick a mode closest to DEFAULT_DPI
735 736 737 738
     */
    for (mode = output->probed_modes; mode; mode = mode->next)
    {
	int	    dpi;
739 740
	int	    preferred = (((mode->type & M_T_PREFERRED) != 0) +
				 ((mode->type & M_T_USERPREF) != 0));
741 742
	int	    diff;

743 744 745 746 747 748
	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);
749
	diff = dpi - DEFAULT_DPI;
750 751 752 753 754 755 756 757 758 759 760 761 762
	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
763 764
xf86ClosestMode (xf86OutputPtr output, 
		 DisplayModePtr match, Rotation match_rotation,
765 766 767 768 769 770 771 772 773 774 775 776 777 778
		 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;

779 780 781
	if (xf86ModeWidth (mode, output->initial_rotation) > width ||
	    xf86ModeHeight (mode, output->initial_rotation) > height)
	    continue;
782 783
	
	/* exact matches are preferred */
784 785
	if (output->initial_rotation == match_rotation &&
	    xf86ModesEqual (mode, match))
786 787
	    return mode;
	
788 789
	dx = xf86ModeWidth (match, match_rotation) - xf86ModeWidth (mode, output->initial_rotation);
	dy = xf86ModeHeight (match, match_rotation) - xf86ModeHeight (mode, output->initial_rotation);
790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806
	diff = dx * dx + dy * dy;
	if (target_mode == NULL || diff < target_diff)
	{
	    target_mode = mode;
	    target_diff = diff;
	}
    }
    return target_mode;
}

static Bool
xf86OutputHasPreferredMode (xf86OutputPtr output, int width, int height)
{
    DisplayModePtr  mode;

    for (mode = output->probed_modes; mode; mode = mode->next)
    {
807 808 809 810
	if (xf86ModeWidth (mode, output->initial_rotation) > width ||
	    xf86ModeHeight (mode, output->initial_rotation) > height)
	    continue;

811 812 813 814 815 816 817 818 819 820 821 822 823 824 825
	if (mode->type & M_T_PREFERRED)
	    return TRUE;
    }
    return FALSE;
}

static int
xf86PickCrtcs (ScrnInfoPtr	scrn,
	       xf86CrtcPtr	*best_crtcs,
	       DisplayModePtr	*modes,
	       int		n,
	       int		width,
	       int		height)
{
    xf86CrtcConfigPtr	config = XF86_CRTC_CONFIG_PTR(scrn);
826
    int		    c, o;
827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883
    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;
    
    crtcs = xalloc (config->num_output * sizeof (xf86CrtcPtr));
    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]) &&
884
		config->output[0]->initial_rotation == config->output[n]->initial_rotation &&
885 886 887
		config->output[o]->initial_x == config->output[n]->initial_x &&
		config->output[o]->initial_y == config->output[n]->initial_y)
	    {
888
		if ((output->possible_clones & (1 << o)) == 0)
889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910
		    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));
	}
    }
    xfree (crtcs);
    return best_score;
}


/*
 * Compute the virtual size necessary to place all of the available
911 912 913 914 915
 * 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.
916 917 918
 */

static void
919 920
xf86DefaultScreenLimits (ScrnInfoPtr scrn, int *widthp, int *heightp,
			 Bool canGrow)
921 922 923 924 925 926 927 928 929 930 931 932 933 934
{
    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)
	{
935 936
	    crtc_width = crtc->x + xf86ModeWidth (&crtc->desiredMode, crtc->desiredRotation);
	    crtc_height = crtc->y + xf86ModeHeight (&crtc->desiredMode, crtc->desiredRotation);
937
	}
938 939 940 941
	if (!canGrow) {
	    for (o = 0; o < config->num_output; o++)
	    {
		xf86OutputPtr   output = config->output[o];
942

943 944
		for (s = 0; s < config->num_crtc; s++)
		    if (output->possible_crtcs & (1 << s))
945
		    {
946 947 948 949 950 951 952 953 954 955 956 957
			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;
			}
958
		    }
959
	    }
960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057
	}
	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

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)
1058 1059 1060 1061 1062 1063 1064 1065 1066
		    {
			if (xf86nameCompare (rel_mon->mon_identifier,
					      relative_name) == 0)
			{
			    relative = config->output[or];
			    break;
			}
		    }
		    if (strcmp (out_rel->name, relative_name) == 0)
1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090
		    {
			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;
		}
		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:
1091
		    output->initial_y += xf86ModeHeight (modes[or], relative->initial_rotation);
1092 1093
		    break;
		case OPTION_RIGHT_OF:
1094
		    output->initial_x += xf86ModeWidth (modes[or], relative->initial_rotation);
1095 1096
		    break;
		case OPTION_ABOVE:
1097
		    output->initial_y -= xf86ModeHeight (modes[o], relative->initial_rotation);
1098 1099
		    break;
		case OPTION_LEFT_OF:
1100
		    output->initial_x -= xf86ModeWidth (modes[o], relative->initial_rotation);
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 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 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242
		    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;
}

/*
 * XXX walk the monitor mode list and prune out duplicates that
 * are inserted by xf86DDCMonitorSet. In an ideal world, that
 * function would do this work by itself.
 */

static void
xf86PruneDuplicateMonitorModes (MonPtr Monitor)
{
    DisplayModePtr  master, clone, next;

    for (master = Monitor->Modes; 
	 master && master != Monitor->Last; 
	 master = master->next)
    {
	for (clone = master->next; clone && clone != Monitor->Modes; clone = next)
	{
	    next = clone->next;
	    if (xf86ModesEqual (master, clone))
	    {
		if (Monitor->Last == clone)
		    Monitor->Last = clone->prev;
		xf86DeleteMode (&Monitor->Modes, clone);
	    }
	}
    }
}

/** Return - 0 + if a should be earlier, same or later than b in list
 */
static int
xf86ModeCompare (DisplayModePtr a, DisplayModePtr b)
{
    int	diff;

    diff = ((b->type & M_T_PREFERRED) != 0) - ((a->type & M_T_PREFERRED) != 0);
    if (diff)
	return diff;
    diff = b->HDisplay * b->VDisplay - a->HDisplay * a->VDisplay;
    if (diff)
	return diff;
    diff = b->Clock - a->Clock;
    return diff;
}

/**
 * Insertion sort input in-place and return the resulting head
 */
static DisplayModePtr
xf86SortModes (DisplayModePtr input)
{
    DisplayModePtr  output = NULL, i, o, n, *op, prev;

    /* sort by preferred status and pixel area */
    while (input)
    {
	i = input;
	input = input->next;
	for (op = &output; (o = *op); op = &o->next)
	    if (xf86ModeCompare (o, i) > 0)
		break;
	i->next = *op;
	*op = i;
    }
    /* prune identical modes */
    for (o = output; o && (n = o->next); o = n)
    {
	if (!strcmp (o->name, n->name) && xf86ModesEqual (o, n))
	{
	    o->next = n->next;
	    xfree (n->name);
	    xfree (n);
	    n = o;
	}
    }
    /* hook up backward links */
    prev = NULL;
    for (o = output; o; o = o->next)
    {
	o->prev = prev;
	prev = o;
    }
    return output;
}

1243
_X_EXPORT void
1244 1245 1246 1247 1248
xf86ProbeOutputModes (ScrnInfoPtr scrn, int maxX, int maxY)
{
    xf86CrtcConfigPtr	config = XF86_CRTC_CONFIG_PTR(scrn);
    int			o;

1249 1250 1251 1252 1253 1254 1255 1256 1257
    /* When canGrow was TRUE in the initial configuration we have to
     * compare against the maximum values so that we don't drop modes.
     * When canGrow was FALSE, the maximum values would have been clamped
     * anyway.
     */
    if (maxX == 0 || maxY == 0) {
	maxX = config->maxWidth;
	maxY = config->maxHeight;
    }
1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284

    /* Elide duplicate modes before defaulting code uses them */
    xf86PruneDuplicateMonitorModes (scrn->monitor);
    
    /* Probe the list of modes for each output. */
    for (o = 0; o < config->num_output; o++) 
    {
	xf86OutputPtr	    output = config->output[o];
	DisplayModePtr	    mode;
	DisplayModePtr	    config_modes = NULL, output_modes, default_modes;
	char		    *preferred_mode;
	xf86MonPtr	    edid_monitor;
	XF86ConfMonitorPtr  conf_monitor;
	MonRec		    mon_rec;
	int		    min_clock = 0;
	int		    max_clock = 0;
	double		    clock;
	enum { sync_config, sync_edid, sync_default } sync_source = sync_default;
	
	while (output->probed_modes != NULL)
	    xf86DeleteMode(&output->probed_modes, output->probed_modes);

	/*
	 * Check connection status
	 */
	output->status = (*output->funcs->detect)(output);

1285
	if (output->status == XF86OutputStatusDisconnected)
1286 1287
	{
	    xf86OutputSetEDID (output, NULL);
1288
	    continue;
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 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 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417

	memset (&mon_rec, '\0', sizeof (mon_rec));
	
	conf_monitor = output->conf_monitor;
	
	if (conf_monitor)
	{
	    int	i;
	    
	    for (i = 0; i < conf_monitor->mon_n_hsync; i++)
	    {
		mon_rec.hsync[mon_rec.nHsync].lo = conf_monitor->mon_hsync[i].lo;
		mon_rec.hsync[mon_rec.nHsync].hi = conf_monitor->mon_hsync[i].hi;
		mon_rec.nHsync++;
		sync_source = sync_config;
	    }
	    for (i = 0; i < conf_monitor->mon_n_vrefresh; i++)
	    {
		mon_rec.vrefresh[mon_rec.nVrefresh].lo = conf_monitor->mon_vrefresh[i].lo;
		mon_rec.vrefresh[mon_rec.nVrefresh].hi = conf_monitor->mon_vrefresh[i].hi;
		mon_rec.nVrefresh++;
		sync_source = sync_config;
	    }
	    config_modes = xf86GetMonitorModes (scrn, conf_monitor);
	}
	
	output_modes = (*output->funcs->get_modes) (output);
	
	edid_monitor = output->MonInfo;
	
	if (edid_monitor)
	{
	    int			    i;
	    Bool		    set_hsync = mon_rec.nHsync == 0;
	    Bool		    set_vrefresh = mon_rec.nVrefresh == 0;

	    for (i = 0; i < sizeof (edid_monitor->det_mon) / sizeof (edid_monitor->det_mon[0]); i++)
	    {
		if (edid_monitor->det_mon[i].type == DS_RANGES)
		{
		    struct monitor_ranges   *ranges = &edid_monitor->det_mon[i].section.ranges;
		    if (set_hsync && ranges->max_h)
		    {
			mon_rec.hsync[mon_rec.nHsync].lo = ranges->min_h;
			mon_rec.hsync[mon_rec.nHsync].hi = ranges->max_h;
			mon_rec.nHsync++;
			if (sync_source == sync_default)
			    sync_source = sync_edid;
		    }
		    if (set_vrefresh && ranges->max_v)
		    {
			mon_rec.vrefresh[mon_rec.nVrefresh].lo = ranges->min_v;
			mon_rec.vrefresh[mon_rec.nVrefresh].hi = ranges->max_v;
			mon_rec.nVrefresh++;
			if (sync_source == sync_default)
			    sync_source = sync_edid;
		    }
		    if (ranges->max_clock > max_clock)
			max_clock = ranges->max_clock;
		}
	    }
	}

	if (xf86GetOptValFreq (output->options, OPTION_MIN_CLOCK,
			       OPTUNITS_KHZ, &clock))
	    min_clock = (int) clock;
	if (xf86GetOptValFreq (output->options, OPTION_MAX_CLOCK,
			       OPTUNITS_KHZ, &clock))
	    max_clock = (int) clock;

	/*
	 * These limits will end up setting a 1024x768@60Hz mode by default,
	 * which seems like a fairly good mode to use when nothing else is
	 * specified
	 */
	if (mon_rec.nHsync == 0)
	{
	    mon_rec.hsync[0].lo = 31.0;
	    mon_rec.hsync[0].hi = 55.0;
	    mon_rec.nHsync = 1;
	}
	if (mon_rec.nVrefresh == 0)
	{
	    mon_rec.vrefresh[0].lo = 58.0;
	    mon_rec.vrefresh[0].hi = 62.0;
	    mon_rec.nVrefresh = 1;
	}
	default_modes = xf86GetDefaultModes (output->interlaceAllowed,
					     output->doubleScanAllowed);
	
	if (sync_source == sync_config)
	{
	    /* 
	     * Check output and config modes against sync range from config file
	     */
	    xf86ValidateModesSync (scrn, output_modes, &mon_rec);
	    xf86ValidateModesSync (scrn, config_modes, &mon_rec);
	}
	/*
	 * Check default modes against sync range
	 */
        xf86ValidateModesSync (scrn, default_modes, &mon_rec);
	/*
	 * Check default modes against monitor max clock
	 */
	if (max_clock)
	    xf86ValidateModesClocks(scrn, default_modes,
				    &min_clock, &max_clock, 1);
	
	output->probed_modes = NULL;
	output->probed_modes = xf86ModesAdd (output->probed_modes, config_modes);
	output->probed_modes = xf86ModesAdd (output->probed_modes, output_modes);
	output->probed_modes = xf86ModesAdd (output->probed_modes, default_modes);
	
	/*
	 * Check all modes against max size
	 */
	if (maxX && maxY)
	    xf86ValidateModesSize (scrn, output->probed_modes,
				       maxX, maxY, 0);
	 
	/*
	 * Check all modes against output
	 */
	for (mode = output->probed_modes; mode != NULL; mode = mode->next) 
	    if (mode->status == MODE_OK)
		mode->status = (*output->funcs->mode_valid)(output, mode);
	
1418 1419
	xf86PruneInvalidModes(scrn, &output->probed_modes,
			      config->debug_modes);
1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443
	
	output->probed_modes = xf86SortModes (output->probed_modes);
	
	/* Check for a configured preference for a particular mode */
	preferred_mode = xf86GetOptValString (output->options,
					      OPTION_PREFERRED_MODE);

	if (preferred_mode)
	{
	    for (mode = output->probed_modes; mode; mode = mode->next)
	    {
		if (!strcmp (preferred_mode, mode->name))
		{
		    if (mode != output->probed_modes)
		    {
			if (mode->prev)
			    mode->prev->next = mode->next;
			if (mode->next)
			    mode->next->prev = mode->prev;
			mode->next = output->probed_modes;
			output->probed_modes->prev = mode;
			mode->prev = NULL;
			output->probed_modes = mode;
		    }
1444
		    mode->type |= (M_T_PREFERRED|M_T_USERPREF);
1445
		    break;
1446 1447 1448 1449
		}
	    }
	}
	
1450 1451
	output->initial_rotation = xf86OutputInitialRotation (output);

1452 1453 1454 1455 1456 1457 1458 1459 1460 1461
	if (config->debug_modes) {
	    if (output->probed_modes != NULL) {
		xf86DrvMsg(scrn->scrnIndex, X_INFO,
			   "Printing probed modes for output %s\n",
			   output->name);
	    } else {
		xf86DrvMsg(scrn->scrnIndex, X_INFO,
			   "No remaining probed modes for output %s\n",
			   output->name);
	    }
1462 1463 1464 1465 1466 1467 1468 1469 1470
	}
	for (mode = output->probed_modes; mode != NULL; mode = mode->next)
	{
	    /* The code to choose the best mode per pipe later on will require
	     * VRefresh to be set.
	     */
	    mode->VRefresh = xf86ModeVRefresh(mode);
	    xf86SetModeCrtc(mode, INTERLACE_HALVE_V);

1471 1472
	    if (config->debug_modes)
		xf86PrintModeline(scrn->scrnIndex, mode);
1473 1474 1475 1476 1477 1478 1479 1480 1481 1482
	}
    }
}


/**
 * Copy one of the output mode lists to the ScrnInfo record
 */

/* XXX where does this function belong? Here? */
1483
_X_EXPORT void
1484 1485
xf86RandR12GetOriginalVirtualSize(ScrnInfoPtr scrn, int *x, int *y);

1486
_X_EXPORT void
1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544
xf86SetScrnInfoModes (ScrnInfoPtr scrn)
{
    xf86CrtcConfigPtr	config = XF86_CRTC_CONFIG_PTR(scrn);
    xf86OutputPtr	output;
    xf86CrtcPtr		crtc;
    DisplayModePtr	last, mode;

    output = config->output[config->compat_output];
    if (!output->crtc)
    {
	int o;

	output = NULL;
	for (o = 0; o < config->num_output; o++)
	    if (config->output[o]->crtc)
	    {
		config->compat_output = o;
		output = config->output[o];
		break;
	    }
	/* no outputs are active, punt and leave things as they are */
	if (!output)
	    return;
    }
    crtc = output->crtc;

    /* Clear any existing modes from scrn->modes */
    while (scrn->modes != NULL)
	xf86DeleteMode(&scrn->modes, scrn->modes);

    /* Set scrn->modes to the mode list for the 'compat' output */
    scrn->modes = xf86DuplicateModes(scrn, output->probed_modes);

    for (mode = scrn->modes; mode; mode = mode->next)
	if (xf86ModesEqual (mode, &crtc->desiredMode))
	    break;

    if (scrn->modes != NULL) {
	/* For some reason, scrn->modes is circular, unlike the other mode
	 * lists.  How great is that?
	 */
	for (last = scrn->modes; last && last->next; last = last->next)
	    ;
	last->next = scrn->modes;
	scrn->modes->prev = last;
	if (mode) {
	    while (scrn->modes != mode)
		scrn->modes = scrn->modes->next;
	}
    }
    scrn->currentMode = scrn->modes;
}

/**
 * Construct default screen configuration
 *
 * Given auto-detected (and, eventually, configured) values,
 * construct a usable configuration for the system
1545 1546 1547 1548 1549 1550 1551
 *
 * canGrow indicates that the driver can resize the screen to larger than its
 * initially configured size via the config->funcs->resize hook.  If TRUE, this
 * function will set virtualX and virtualY to match the initial configuration
 * and leave config->max{Width,Height} alone.  If FALSE, it will bloat
 * virtual[XY] to include the largest modes and set config->max{Width,Height}
 * accordingly.
1552 1553
 */

1554
_X_EXPORT Bool
1555
xf86InitialConfiguration (ScrnInfoPtr scrn, Bool canGrow)
1556 1557 1558 1559
{
    xf86CrtcConfigPtr	config = XF86_CRTC_CONFIG_PTR(scrn);
    int			o, c;
    DisplayModePtr	target_mode = NULL;
1560
    int			target_preferred = 0;
1561
    Rotation		target_rotation = RR_Rotate_0;
1562 1563 1564 1565 1566 1567
    xf86CrtcPtr		*crtcs;
    DisplayModePtr	*modes;
    Bool		*enabled;
    int			width;
    int			height;

1568 1569 1570 1571 1572 1573 1574 1575 1576
    /* Set up the device options */
    config->options = xnfalloc (sizeof (xf86DeviceOptions));
    memcpy (config->options, xf86DeviceOptions, sizeof (xf86DeviceOptions));
    xf86ProcessOptions (scrn->scrnIndex,
			scrn->options,
			config->options);
    config->debug_modes = xf86ReturnOptValBool (config->options,
						OPTION_MODEDEBUG, FALSE);

1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596
    if (scrn->display->virtualX)
	width = scrn->display->virtualX;
    else
	width = config->maxWidth;
    if (scrn->display->virtualY)
	height = scrn->display->virtualY;
    else
	height = config->maxHeight;

    xf86ProbeOutputModes (scrn, width, height);

    crtcs = xnfcalloc (config->num_output, sizeof (xf86CrtcPtr));
    modes = xnfcalloc (config->num_output, sizeof (DisplayModePtr));
    enabled = xnfcalloc (config->num_output, sizeof (Bool));
    
    for (o = 0; o < config->num_output; o++)
    {
	xf86OutputPtr output = config->output[o];
	
	modes[o] = NULL;
1597
	enabled[o] = xf86OutputEnabled (output);
1598 1599 1600
    }
    
    /*
1601
     * User preferred > preferred > other modes
1602 1603 1604
     */
    for (o = 0; o < config->num_output; o++)
    {
1605 1606 1607
	xf86OutputPtr	output = config->output[o];
	DisplayModePtr	default_mode;
	int		default_preferred;
1608

1609 1610 1611 1612 1613 1614 1615 1616
	if (!enabled[o])
	    continue;
	default_mode = xf86DefaultMode (output, width, height);
	if (!default_mode)
	    continue;
	default_preferred = (((default_mode->type & M_T_PREFERRED) != 0) +
			     ((default_mode->type & M_T_USERPREF) != 0));
	if (default_preferred > target_preferred || !target_mode)
1617
	{
1618 1619
	    target_mode = default_mode;
	    target_preferred = default_preferred;
1620
	    target_rotation = output->initial_rotation;
1621
	    config->compat_output = o;
1622 1623
	}
    }
1624 1625 1626 1627 1628
    if (target_mode)
	modes[config->compat_output] = target_mode;
    /*
     * Fill in other output modes
     */
1629 1630 1631 1632
    for (o = 0; o < config->num_output; o++)
    {
	xf86OutputPtr output = config->output[o];
	
1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646
	if (enabled[o])
	{
	    if (!modes[o])
		modes[o] = xf86ClosestMode (output, target_mode,
					    target_rotation, width, height);
	    if (!modes[o])
		xf86DrvMsg (scrn->scrnIndex, X_ERROR,
			    "Output %s enabled but has no modes\n",
			    output->name);
	    else
		xf86DrvMsg (scrn->scrnIndex, X_INFO,
			    "Output %s using initial mode %s\n",
			    output->name, modes[o]->name);
	}
1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693
    }

    /*
     * Set the position of each output
     */
    if (!xf86InitialOutputPositions (scrn, modes))
    {
	xfree (crtcs);
	xfree (modes);
	return FALSE;
    }
	
    /*
     * Assign CRTCs to fit output configuration
     */
    if (!xf86PickCrtcs (scrn, crtcs, modes, 0, width, height))
    {
	xfree (crtcs);
	xfree (modes);
	return FALSE;
    }
    
    /* XXX override xf86 common frame computation code */
    
    scrn->display->frameX0 = 0;
    scrn->display->frameY0 = 0;
    
    for (c = 0; c < config->num_crtc; c++)
    {
	xf86CrtcPtr	crtc = config->crtc[c];

	crtc->enabled = FALSE;
	memset (&crtc->desiredMode, '\0', sizeof (crtc->desiredMode));
    }
    
    /*
     * Set initial configuration
     */
    for (o = 0; o < config->num_output; o++)
    {
	xf86OutputPtr	output = config->output[o];
	DisplayModePtr	mode = modes[o];
        xf86CrtcPtr	crtc = crtcs[o];

	if (mode && crtc)
	{
	    crtc->desiredMode = *mode;
1694
	    crtc->desiredRotation = output->initial_rotation;