xserver git update 15/5/2010

1 files changed, 1810 insertions, 1810 deletions

diff --git a/xorg-server/hw/xfree86/modes/xf86RandR12.c b/xorg-server/hw/xfree86/modes/xf86RandR12.c
index 8898f4dad..8a4d72bd6 100644
--- a/xorg-server/hw/xfree86/modes/xf86RandR12.c
+++ b/xorg-server/hw/xfree86/modes/xf86RandR12.c
@@ -1,1810 +1,1810 @@
-/*
- * Copyright © 2002 Keith Packard, member of The XFree86 Project, Inc.
- *
- * 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>
-#else
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#endif
-
-#include "xf86.h"
-#include "os.h"
-#include "globals.h"
-#include "xf86.h"
-#include "xf86Priv.h"
-#include "xf86DDC.h"
-#include "mipointer.h"
-#include "windowstr.h"
-#include "inputstr.h"
-#include <randrstr.h>
-#include <X11/extensions/render.h>
-
-#include "xf86Crtc.h"
-#include "xf86RandR12.h"
-
-typedef struct _xf86RandR12Info {
-    int				    virtualX;
-    int				    virtualY;
-    int				    mmWidth;
-    int				    mmHeight;
-    int				    maxX;
-    int				    maxY;
-    int				    pointerX;
-    int				    pointerY;
-    Rotation			    rotation; /* current mode */
-    Rotation                        supported_rotations; /* driver supported */
-
-    /* Used to wrap EnterVT so we can re-probe the outputs when a laptop unsuspends
-     * (actually, any time that we switch back into our VT).
-     *
-     * See https://bugs.freedesktop.org/show_bug.cgi?id=21554
-     */
-    xf86EnterVTProc *orig_EnterVT;
-} XF86RandRInfoRec, *XF86RandRInfoPtr;
-
-#ifdef RANDR_12_INTERFACE
-static Bool xf86RandR12Init12 (ScreenPtr pScreen);
-static Bool xf86RandR12CreateScreenResources12 (ScreenPtr pScreen);
-#endif
-
-static int xf86RandR12Generation;
-#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)
-
-static int xf86RandR12KeyIndex;
-static DevPrivateKey xf86RandR12Key;
-#define XF86RANDRINFO(p) ((XF86RandRInfoPtr) \
-    dixLookupPrivate(&(p)->devPrivates, xf86RandR12Key))
-
-#else /* XORG_VERSION_CURRENT < 7.0 */
-
-static int xf86RandR12Index;
-#define XF86RANDRINFO(p) \
-    ((XF86RandRInfoPtr)(p)->devPrivates[xf86RandR12Index].ptr)
-
-#endif /* XORG_VERSION_CURRENT < 7.0 */
-
-
-static int
-xf86RandR12ModeRefresh (DisplayModePtr mode)
-{
-    if (mode->VRefresh)
-	return (int) (mode->VRefresh + 0.5);
-    else
-	return (int) (mode->Clock * 1000.0 / mode->HTotal / mode->VTotal + 0.5);
-}
-
-/* Adapt panning area; return TRUE if panning area was valid without adaption */
-static int
-xf86RandR13VerifyPanningArea (xf86CrtcPtr crtc, int screenWidth, int screenHeight)
-{
-    int ret = TRUE;
-
-    if (crtc->version < 2)
-	return FALSE;
-
-    if (crtc->panningTotalArea.x2 <= crtc->panningTotalArea.x1) {
-	/* Panning in X is disabled */
-	if (crtc->panningTotalArea.x1 || crtc->panningTotalArea.x2)
-	    /* Illegal configuration -> fail/disable */
-	    ret = FALSE;
-	crtc->panningTotalArea.x1    = crtc->panningTotalArea.x2    = 0;
-	crtc->panningTrackingArea.x1 = crtc->panningTrackingArea.x2 = 0;
-	crtc->panningBorder[0]       = crtc->panningBorder[2]       = 0;
-    } else {
-	/* Panning in X is enabled */
-	if (crtc->panningTotalArea.x1 < 0) {
-	    /* Panning region outside screen -> move inside */
-	    crtc->panningTotalArea.x2 -= crtc->panningTotalArea.x1;
-	    crtc->panningTotalArea.x1 = 0;
-	    ret = FALSE;
-	}
-	if (crtc->panningTotalArea.x2 < crtc->panningTotalArea.x1 + crtc->mode.HDisplay) {
-	    /* Panning region smaller than displayed area -> crop to displayed area */
-	    crtc->panningTotalArea.x2 = crtc->panningTotalArea.x1 + crtc->mode.HDisplay;
-	    ret = FALSE;
-	}
-	if (crtc->panningTotalArea.x2 > screenWidth) {
-	    /* Panning region larger than screen -> move inside, then crop to screen */
-	    crtc->panningTotalArea.x1 -= crtc->panningTotalArea.x2 - screenWidth;
-	    crtc->panningTotalArea.x2 = screenWidth;
-	    ret = FALSE;
-	    if (crtc->panningTotalArea.x1 < 0)
-		crtc->panningTotalArea.x1 = 0;
-	}
-	if (crtc->panningBorder[0] + crtc->panningBorder[2] > crtc->mode.HDisplay) {
-	    /* Borders too large -> set to 0 */
-	    crtc->panningBorder[0] = crtc->panningBorder[2] = 0;
-	    ret = FALSE;
-	}
-    }
-
-    if (crtc->panningTotalArea.y2 <= crtc->panningTotalArea.y1) {
-	/* Panning in Y is disabled */
-	if (crtc->panningTotalArea.y1 || crtc->panningTotalArea.y2)
-	    /* Illegal configuration -> fail/disable */
-	    ret = FALSE;
-	crtc->panningTotalArea.y1    = crtc->panningTotalArea.y2    = 0;
-	crtc->panningTrackingArea.y1 = crtc->panningTrackingArea.y2 = 0;
-	crtc->panningBorder[1]       = crtc->panningBorder[3]       = 0;
-    } else {
-	/* Panning in Y is enabled */
-	if (crtc->panningTotalArea.y1 < 0) {
-	    /* Panning region outside screen -> move inside */
-	    crtc->panningTotalArea.y2 -= crtc->panningTotalArea.y1;
-	    crtc->panningTotalArea.y1 = 0;
-	    ret = FALSE;
-	}
-	if (crtc->panningTotalArea.y2 < crtc->panningTotalArea.y1 + crtc->mode.VDisplay) {
-	    /* Panning region smaller than displayed area -> crop to displayed area */
-	    crtc->panningTotalArea.y2 = crtc->panningTotalArea.y1 + crtc->mode.VDisplay;
-	    ret = FALSE;
-	}
-	if (crtc->panningTotalArea.y2 > screenHeight) {
-	    /* Panning region larger than screen -> move inside, then crop to screen */
-	    crtc->panningTotalArea.y1 -= crtc->panningTotalArea.y2 - screenHeight;
-	    crtc->panningTotalArea.y2 = screenHeight;
-	    ret = FALSE;
-	    if (crtc->panningTotalArea.y1 < 0)
-		crtc->panningTotalArea.y1 = 0;
-	}
-	if (crtc->panningBorder[1] + crtc->panningBorder[3] > crtc->mode.VDisplay) {
-	    /* Borders too large -> set to 0 */
-	    crtc->panningBorder[1] = crtc->panningBorder[3] = 0;
-	    ret = FALSE;
-	}
-    }
-
-    return ret;
-}
-
-/*
- * The heart of the panning operation:
- *
- * Given a frame buffer position (fb_x, fb_y),
- * and a crtc position (crtc_x, crtc_y),
- * and a transform matrix which maps frame buffer to crtc,
- * compute a panning position (pan_x, pan_y) that
- * makes the resulting transform line those two up
- */
-
-static void
-xf86ComputeCrtcPan (Bool transform_in_use,
-		    struct pixman_f_transform *m,
-		    double screen_x, double screen_y,
-		    double crtc_x, double crtc_y,
-		    int old_pan_x, int old_pan_y,
-		    int *new_pan_x, int *new_pan_y)
-{
-    if (transform_in_use) {
-	/*
-	 * Given the current transform, M, the current position
-	 * on the Screen, S, and the desired position on the CRTC,
-	 * C, compute a translation, T, such that:
-	 *
-	 * M T S = C
-	 *
-	 * where T is of the form
-	 *
-	 * | 1 0 dx |
-	 * | 0 1 dy |
-	 * | 0 0 1  |
-	 *
-	 * M T S =
-	 *   | M00 Sx + M01 Sy + M00 dx + M01 dy + M02 |   | Cx F |
-	 *   | M10 Sx + M11 Sy + M10 dx + M11 dy + M12 | = | Cy F |
-	 *   | M20 Sx + M21 Sy + M20 dx + M21 dy + M22 |   |  F   |
-	 *
-	 * R = M S
-	 *
-	 *   Cx F = M00 dx + M01 dy + R0
-	 *   Cy F = M10 dx + M11 dy + R1
-	 *      F = M20 dx + M21 dy + R2
-	 *
-	 * Zero out dx, then dy
-	 *
-	 * F (Cx M10 - Cy M00) =
-	 *	    (M10 M01 - M00 M11) dy + M10 R0 - M00 R1
-	 * F (M10 - Cy M20) =
-	 *	    (M10 M21 - M20 M11) dy + M10 R2 - M20 R1
-	 *
-	 * F (Cx M11 - Cy M01) =
-	 *	    (M11 M00 - M01 M10) dx + M11 R0 - M01 R1
-	 * F (M11 - Cy M21) =
-	 *	    (M11 M20 - M21 M10) dx + M11 R2 - M21 R1
-	 *
-	 * Make some temporaries
-	 *
-	 * T = | Cx M10 - Cy M00 |
-	 *     | Cx M11 - Cy M01 |
-	 *
-	 * U = | M10 M01 - M00 M11 |
-	 *     | M11 M00 - M01 M10 |
-	 *
-	 * Q = | M10 R0 - M00 R1 |
-	 *     | M11 R0 - M01 R1 |
-	 *
-	 * P = | M10 - Cy M20 |
-	 *     | M11 - Cy M21 |
-	 *
-	 * W = | M10 M21 - M20 M11 |
-	 *     | M11 M20 - M21 M10 |
-	 *
-	 * V = | M10 R2 - M20 R1 |
-	 *	   | M11 R2 - M21 R1 |
-	 *
-	 * Rewrite:
-	 *
-	 * F T0 = U0 dy + Q0
-	 * F P0 = W0 dy + V0
-	 * F T1 = U1 dx + Q1
-	 * F P1 = W1 dx + V1
-	 *
-	 * Solve for F (two ways)
-	 *
-	 * F (W0 T0 - U0 P0)  = W0 Q0 - U0 V0
-	 *
-	 *     W0 Q0 - U0 V0
-	 * F = -------------
-	 *     W0 T0 - U0 P0
-	 *
-	 * F (W1 T1 - U1 P1) = W1 Q1 - U1 V1
-	 *
-	 *     W1 Q1 - U1 V1
-	 * F = -------------
-	 *     W1 T1 - U1 P1
-	 *
-	 * We'll use which ever solution works (denominator != 0)
-	 *
-	 * Finally, solve for dx and dy:
-	 *
-	 * dx = (F T1 - Q1) / U1
-	 * dx = (F P1 - V1) / W1
-	 *
-	 * dy = (F T0 - Q0) / U0
-	 * dy = (F P0 - V0) / W0
-	 */
-	double			    r[3];
-	double			    q[2], u[2], t[2], v[2], w[2], p[2];
-	double			    f;
-	struct pict_f_vector	    d;
-	int			    i;
-
-	/* Get the un-normalized crtc coordinates again */
-	for (i = 0; i < 3; i++)
-	    r[i] = m->m[i][0] * screen_x + m->m[i][1] * screen_y + m->m[i][2];
-
-	/* Combine values into temporaries */
-	for (i = 0; i < 2; i++) {
-	    q[i] = m->m[1][i] * r[0] - m->m[0][i] * r[1];
-	    u[i] = m->m[1][i] * m->m[0][1-i] - m->m[0][i] * m->m[1][1-i];
-	    t[i] = m->m[1][i] * crtc_x - m->m[0][i] * crtc_y;
-
-	    v[i] = m->m[1][i] * r[2] - m->m[2][i] * r[1];
-	    w[i] = m->m[1][i] * m->m[2][1-i] - m->m[2][i] * m->m[1][1-i];
-	    p[i] = m->m[1][i] - m->m[2][i] * crtc_y;
-	}
-
-	/* Find a way to compute f */
-	f = 0;
-	for (i = 0; i < 2; i++) {
-	    double a = w[i] * q[i] - u[i] * v[i];
-	    double b = w[i] * t[i] - u[i] * p[i];
-	    if (b != 0) {
-		f = a/b;
-		break;
-	    }
-	}
-
-	/* Solve for the resulting transform vector */
-	for (i = 0; i < 2; i++) {
-	    if (u[i])
-		d.v[1-i] = (t[i] * f - q[i]) / u[i];
-	    else if (w[1])
-		d.v[1-i] = (p[i] * f - v[i]) / w[i];
-	    else
-		d.v[1-i] = 0;
-	}
-	*new_pan_x = old_pan_x - floor (d.v[0] + 0.5);
-	*new_pan_y = old_pan_y - floor (d.v[1] + 0.5);
-    } else {
-	*new_pan_x = screen_x - crtc_x;
-	*new_pan_y = screen_y - crtc_y;
-    }
-}
-
-static void
-xf86RandR13Pan (xf86CrtcPtr crtc, int x, int y)
-{
-    int newX, newY;
-    int width, height;
-    Bool panned = FALSE;
-
-    if (crtc->version < 2)
-	return;
-
-    if (! crtc->enabled						||
-	(crtc->panningTotalArea.x2 <= crtc->panningTotalArea.x1	&&
-	 crtc->panningTotalArea.y2 <= crtc->panningTotalArea.y1))
-	return;
-
-    newX   = crtc->x;
-    newY   = crtc->y;
-    width  = crtc->mode.HDisplay;
-    height = crtc->mode.VDisplay;
-
-    if ((crtc->panningTrackingArea.x2 <= crtc->panningTrackingArea.x1 ||
-	 (x >= crtc->panningTrackingArea.x1 && x < crtc->panningTrackingArea.x2)) &&
-	(crtc->panningTrackingArea.y2 <= crtc->panningTrackingArea.y1 ||
-	 (y >= crtc->panningTrackingArea.y1 && y < crtc->panningTrackingArea.y2)))
-    {
-	struct pict_f_vector    c;
-
-	/*
-	 * Pre-clip the mouse position to the panning area so that we don't
-	 * push the crtc outside. This doesn't deal with changes to the
-	 * panning values, only mouse position changes.
-	 */
-	if (crtc->panningTotalArea.x2 > crtc->panningTotalArea.x1)
-	{
-	    if (x < crtc->panningTotalArea.x1)
-		x = crtc->panningTotalArea.x1;
-	    if (x >= crtc->panningTotalArea.x2)
-		x = crtc->panningTotalArea.x2 - 1;
-	}
-	if (crtc->panningTotalArea.y2 > crtc->panningTotalArea.y1)
-	{
-	    if (y < crtc->panningTotalArea.y1)
-		y = crtc->panningTotalArea.y1;
-	    if (y >= crtc->panningTotalArea.y2)
-		y = crtc->panningTotalArea.y2 - 1;
-	}
-
-	c.v[0] = x;
-	c.v[1] = y;
-	c.v[2] = 1.0;
-	if (crtc->transform_in_use) {
-	    pixman_f_transform_point(&crtc->f_framebuffer_to_crtc, &c);
-	} else {
-	    c.v[0] -= crtc->x;
-	    c.v[1] -= crtc->y;
-	}
-
-	if (crtc->panningTotalArea.x2 > crtc->panningTotalArea.x1) {
-	    if (c.v[0] < crtc->panningBorder[0]) {
-		c.v[0] = crtc->panningBorder[0];
-		panned = TRUE;
-	    }
-	    if (c.v[0] >= width - crtc->panningBorder[2]) {
-		c.v[0] = width - crtc->panningBorder[2] - 1;
-		panned = TRUE;
-	    }
-	}
-	if (crtc->panningTotalArea.y2 > crtc->panningTotalArea.y1) {
-	    if (c.v[1] < crtc->panningBorder[1]) {
-		c.v[1] = crtc->panningBorder[1];
-		panned = TRUE;
-	    }
-	    if (c.v[1] >= height - crtc->panningBorder[3]) {
-		c.v[1] = height - crtc->panningBorder[3] - 1;
-		panned = TRUE;
-	    }
-	}
-	if (panned)
-	    xf86ComputeCrtcPan (crtc->transform_in_use,
-				&crtc->f_framebuffer_to_crtc,
-				x, y, c.v[0], c.v[1],
-				newX, newY, &newX, &newY);
-    }
-
-    /*
-     * Ensure that the crtc is within the panning region.
-     *
-     * XXX This computation only works when we do not have a transform
-     * in use.
-     */
-    if (!crtc->transform_in_use)
-    {
-	/* Validate against [xy]1 after [xy]2, to be sure that results are > 0 for [xy]1 > 0 */
-	if (crtc->panningTotalArea.x2 > crtc->panningTotalArea.x1) {
-	    if (newX > crtc->panningTotalArea.x2 - width)
-		newX =  crtc->panningTotalArea.x2 - width;
-	    if (newX <  crtc->panningTotalArea.x1)
-		newX =  crtc->panningTotalArea.x1;
-	}
-	if (crtc->panningTotalArea.y2 > crtc->panningTotalArea.y1) {
-	    if (newY > crtc->panningTotalArea.y2 - height)
-		newY =  crtc->panningTotalArea.y2 - height;
-	    if (newY <  crtc->panningTotalArea.y1)
-		newY =  crtc->panningTotalArea.y1;
-	}
-    }
-    if (newX != crtc->x || newY != crtc->y)
-	xf86CrtcSetOrigin (crtc, newX, newY);
-}
-
-static Bool
-xf86RandR12GetInfo (ScreenPtr pScreen, Rotation *rotations)
-{
-    RRScreenSizePtr	    pSize;
-    ScrnInfoPtr		    scrp = XF86SCRNINFO(pScreen);
-    XF86RandRInfoPtr	    randrp = XF86RANDRINFO(pScreen);
-    DisplayModePtr	    mode;
-    int			    refresh0 = 60;
-    int			    maxX = 0, maxY = 0;
-
-    *rotations = randrp->supported_rotations;
-
-    if (randrp->virtualX == -1 || randrp->virtualY == -1)
-    {
-	randrp->virtualX = scrp->virtualX;
-	randrp->virtualY = scrp->virtualY;
-    }
-
-    /* Re-probe the outputs for new monitors or modes */
-    if (scrp->vtSema)
-    {
-	xf86ProbeOutputModes (scrp, 0, 0);
-	xf86SetScrnInfoModes (scrp);
-    }
-
-    for (mode = scrp->modes; ; mode = mode->next)
-    {
-	int refresh = xf86RandR12ModeRefresh (mode);
-	if (randrp->maxX == 0 || randrp->maxY == 0)
-	{
-		if (maxX < mode->HDisplay)
-			maxX = mode->HDisplay;
-		if (maxY < mode->VDisplay)
-			maxY = mode->VDisplay;
-	}
-	if (mode == scrp->modes)
-	    refresh0 = refresh;
-	pSize = RRRegisterSize (pScreen,
-				mode->HDisplay, mode->VDisplay,
-				randrp->mmWidth, randrp->mmHeight);
-	if (!pSize)
-	    return FALSE;
-	RRRegisterRate (pScreen, pSize, refresh);
-
-	if (xf86ModesEqual(mode, scrp->currentMode))
-	{
-	    RRSetCurrentConfig (pScreen, randrp->rotation, refresh, pSize);
-	}
-	if (mode->next == scrp->modes)
-	    break;
-    }
-
-    if (randrp->maxX == 0 || randrp->maxY == 0)
-    {
-	randrp->maxX = maxX;
-	randrp->maxY = maxY;
-    }
-
-    return TRUE;
-}
-
-static Bool
-xf86RandR12SetMode (ScreenPtr	    pScreen,
-		  DisplayModePtr    mode,
-		  Bool		    useVirtual,
-		  int		    mmWidth,
-		  int		    mmHeight)
-{
-    ScrnInfoPtr		scrp = XF86SCRNINFO(pScreen);
-    XF86RandRInfoPtr	randrp = XF86RANDRINFO(pScreen);
-    int			oldWidth = pScreen->width;
-    int			oldHeight = pScreen->height;
-    int			oldmmWidth = pScreen->mmWidth;
-    int			oldmmHeight = pScreen->mmHeight;
-    WindowPtr		pRoot = WindowTable[pScreen->myNum];
-    DisplayModePtr      currentMode = NULL;
-    Bool 		ret = TRUE;
-    PixmapPtr 		pspix = NULL;
-
-    if (pRoot)
-	(*scrp->EnableDisableFBAccess) (pScreen->myNum, FALSE);
-    if (useVirtual)
-    {
-	scrp->virtualX = randrp->virtualX;
-	scrp->virtualY = randrp->virtualY;
-    }
-    else
-    {
-	scrp->virtualX = mode->HDisplay;
-	scrp->virtualY = mode->VDisplay;
-    }
-
-    if(randrp->rotation & (RR_Rotate_90 | RR_Rotate_270))
-    {
-	/* If the screen is rotated 90 or 270 degrees, swap the sizes. */
-	pScreen->width = scrp->virtualY;
-	pScreen->height = scrp->virtualX;
-	pScreen->mmWidth = mmHeight;
-	pScreen->mmHeight = mmWidth;
-    }
-    else
-    {
-	pScreen->width = scrp->virtualX;
-	pScreen->height = scrp->virtualY;
-	pScreen->mmWidth = mmWidth;
-	pScreen->mmHeight = mmHeight;
-    }
-    if (scrp->currentMode == mode) {
-        /* Save current mode */
-        currentMode = scrp->currentMode;
-        /* Reset, just so we ensure the drivers SwitchMode is called */
-        scrp->currentMode = NULL;
-    }
-    /*
-     * We know that if the driver failed to SwitchMode to the rotated
-     * version, then it should revert back to it's prior mode.
-     */
-    if (!xf86SwitchMode (pScreen, mode))
-    {
-        ret = FALSE;
-	scrp->virtualX = pScreen->width = oldWidth;
-	scrp->virtualY = pScreen->height = oldHeight;
-	pScreen->mmWidth = oldmmWidth;
-	pScreen->mmHeight = oldmmHeight;
-        scrp->currentMode = currentMode;
-    }
-    /*
-     * Get the new Screen pixmap ptr as SwitchMode might have called
-     * ModifyPixmapHeader and xf86EnableDisableFBAccess will put it back...
-     * Unfortunately.
-     */
-    pspix = (*pScreen->GetScreenPixmap) (pScreen);
-    if (pspix->devPrivate.ptr)
-       scrp->pixmapPrivate = pspix->devPrivate;
-
-    /*
-     * Make sure the layout is correct
-     */
-    xf86ReconfigureLayout();
-
-    /*
-     * Make sure the whole screen is visible
-     */
-    xf86SetViewport (pScreen, pScreen->width, pScreen->height);
-    xf86SetViewport (pScreen, 0, 0);
-    if (pRoot)
-	(*scrp->EnableDisableFBAccess) (pScreen->myNum, TRUE);
-    return ret;
-}
-
-Bool
-xf86RandR12SetConfig (ScreenPtr		pScreen,
-		    Rotation		rotation,
-		    int			rate,
-		    RRScreenSizePtr	pSize)
-{
-    ScrnInfoPtr		scrp = XF86SCRNINFO(pScreen);
-    XF86RandRInfoPtr	randrp = XF86RANDRINFO(pScreen);
-    DisplayModePtr	mode;
-    int			px, py;
-    Bool		useVirtual = FALSE;
-    int			maxX = 0, maxY = 0;
-    Rotation		oldRotation = randrp->rotation;
-
-    randrp->rotation = rotation;
-
-    if (randrp->virtualX == -1 || randrp->virtualY == -1)
-    {
-	randrp->virtualX = scrp->virtualX;
-	randrp->virtualY = scrp->virtualY;
-    }
-
-    miPointerGetPosition (inputInfo.pointer, &px, &py);
-    for (mode = scrp->modes; ; mode = mode->next)
-    {
-	if (randrp->maxX == 0 || randrp->maxY == 0)
-	{
-		if (maxX < mode->HDisplay)
-			maxX = mode->HDisplay;
-		if (maxY < mode->VDisplay)
-			maxY = mode->VDisplay;
-	}
-	if (mode->HDisplay == pSize->width &&
-	    mode->VDisplay == pSize->height &&
-	    (rate == 0 || xf86RandR12ModeRefresh (mode) == rate))
-	    break;
-	if (mode->next == scrp->modes)
-	{
-	    if (pSize->width == randrp->virtualX &&
-		pSize->height == randrp->virtualY)
-	    {
-		mode = scrp->modes;
-		useVirtual = TRUE;
-		break;
-	    }
-    	    if (randrp->maxX == 0 || randrp->maxY == 0)
-    	    {
-		randrp->maxX = maxX;
-		randrp->maxY = maxY;
-    	    }
-	    return FALSE;
-	}
-    }
-
-    if (randrp->maxX == 0 || randrp->maxY == 0)
-    {
-	randrp->maxX = maxX;
-	randrp->maxY = maxY;
-    }
-
-    if (!xf86RandR12SetMode (pScreen, mode, useVirtual, pSize->mmWidth,
-			   pSize->mmHeight)) {
-        randrp->rotation = oldRotation;
-	return FALSE;
-    }
-
-    /*
-     * Move the cursor back where it belongs; SwitchMode repositions it
-     */
-    if (pScreen == miPointerGetScreen(inputInfo.pointer))
-    {
-        px = (px >= pScreen->width ? (pScreen->width - 1) : px);
-        py = (py >= pScreen->height ? (pScreen->height - 1) : py);
-
-	xf86SetViewport(pScreen, px, py);
-
-	(*pScreen->SetCursorPosition) (inputInfo.pointer, pScreen, px, py, FALSE);
-    }
-
-    return TRUE;
-}
-
-static Bool
-xf86RandR12ScreenSetSize (ScreenPtr	pScreen,
-			CARD16		width,
-			CARD16		height,
-			CARD32		mmWidth,
-			CARD32		mmHeight)
-{
-    XF86RandRInfoPtr	randrp = XF86RANDRINFO(pScreen);
-    ScrnInfoPtr		pScrn = XF86SCRNINFO(pScreen);
-    xf86CrtcConfigPtr	config = XF86_CRTC_CONFIG_PTR(pScrn);
-    WindowPtr		pRoot = WindowTable[pScreen->myNum];
-    PixmapPtr		pScrnPix = (*pScreen->GetScreenPixmap)(pScreen);
-    Bool		ret = FALSE;
-    int                 c;
-
-#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)
-    if (xf86RandR12Key) {
-#endif
-        if (randrp->virtualX == -1 || randrp->virtualY == -1)
-        {
-	    randrp->virtualX = pScrn->virtualX;
-	    randrp->virtualY = pScrn->virtualY;
-        }
-#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)
-    }
-#endif
-    if (pRoot && pScrn->vtSema)
-	(*pScrn->EnableDisableFBAccess) (pScreen->myNum, FALSE);
-
-    /* Let the driver update virtualX and virtualY */
-    if (!(*config->funcs->resize)(pScrn, width, height))
-	goto finish;
-
-    ret = TRUE;
-    /* Update panning information */
-    for (c = 0; c < config->num_crtc; c++) {
-	xf86CrtcPtr crtc = config->crtc[c];
-	if (crtc->panningTotalArea.x2 > crtc->panningTotalArea.x1 ||
-	    crtc->panningTotalArea.y2 > crtc->panningTotalArea.y1) {
-	    if (crtc->panningTotalArea.x2 > crtc->panningTrackingArea.x1)
-		crtc->panningTotalArea.x2 += width  - pScreen->width;
-	    if (crtc->panningTotalArea.y2 > crtc->panningTrackingArea.y1)
-		crtc->panningTotalArea.y2 += height - pScreen->height;
-	    if (crtc->panningTrackingArea.x2 > crtc->panningTrackingArea.x1)
-		crtc->panningTrackingArea.x2 += width  - pScreen->width;
-	    if (crtc->panningTrackingArea.y2 > crtc->panningTrackingArea.y1)
-		crtc->panningTrackingArea.y2 += height - pScreen->height;
-	    xf86RandR13VerifyPanningArea (crtc, width, height);
-	    xf86RandR13Pan (crtc, randrp->pointerX, randrp->pointerY);
-	}
-    }
-
-    pScreen->width = pScrnPix->drawable.width = width;
-    pScreen->height = pScrnPix->drawable.height = height;
-    randrp->mmWidth = pScreen->mmWidth = mmWidth;
-    randrp->mmHeight = pScreen->mmHeight = mmHeight;
-
-    xf86SetViewport (pScreen, pScreen->width-1, pScreen->height-1);
-    xf86SetViewport (pScreen, 0, 0);
-
-finish:
-    if (pRoot && pScrn->vtSema)
-	(*pScrn->EnableDisableFBAccess) (pScreen->myNum, TRUE);
-#if RANDR_12_INTERFACE
-    if (xf86RandR12Key && WindowTable[pScreen->myNum] && ret)
-	RRScreenSizeNotify (pScreen);
-#endif
-    return ret;
-}
-
-Rotation
-xf86RandR12GetRotation(ScreenPtr pScreen)
-{
-    XF86RandRInfoPtr	    randrp = XF86RANDRINFO(pScreen);
-
-    return randrp->rotation;
-}
-
-Bool
-xf86RandR12CreateScreenResources (ScreenPtr pScreen)
-{
-    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];
-    xf86CrtcConfigPtr   config;
-    XF86RandRInfoPtr	randrp;
-    int			c;
-    int			width, height;
-    int			mmWidth, mmHeight;
-#ifdef PANORAMIX
-    /* XXX disable RandR when using Xinerama */
-    if (!noPanoramiXExtension)
-	return TRUE;
-#endif
-
-    config = XF86_CRTC_CONFIG_PTR(pScrn);
-    randrp = XF86RANDRINFO(pScreen);
-    /*
-     * Compute size of screen
-     */
-    width = 0; height = 0;
-    for (c = 0; c < config->num_crtc; c++)
-    {
-	xf86CrtcPtr crtc = config->crtc[c];
-	int	    crtc_width = crtc->x + xf86ModeWidth (&crtc->mode, crtc->rotation);
-	int	    crtc_height = crtc->y + xf86ModeHeight (&crtc->mode, crtc->rotation);
-	
-	if (crtc->enabled) {
-	    if (crtc_width > width)
-		width = crtc_width;
-	    if (crtc_height > height)
-		height = crtc_height;
-	    if (crtc->panningTotalArea.x2 > width)
-		width = crtc->panningTotalArea.x2;
-	    if (crtc->panningTotalArea.y2 > height)
-		height = crtc->panningTotalArea.y2;
-	}
-    }
-    
-    if (width && height)
-    {
-	/*
-	 * Compute physical size of screen
-	 */
-	if (monitorResolution) 
-	{
-	    mmWidth = width * 25.4 / monitorResolution;
-	    mmHeight = height * 25.4 / monitorResolution;
-	}
-	else
-	{
-	    xf86OutputPtr   output = xf86CompatOutput(pScrn);
-
-	    if (output &&
-		output->conf_monitor &&
-		(output->conf_monitor->mon_width  > 0 &&
-		 output->conf_monitor->mon_height > 0))
-	    {
-		/*
-		 * Prefer user configured DisplaySize
-		 */
-		mmWidth = output->conf_monitor->mon_width;
-		mmHeight = output->conf_monitor->mon_height;
-	    }
-	    else
-	    {
-		/*
-		 * Otherwise, just set the screen to DEFAULT_DPI
-		 */
-		mmWidth = width * 25.4 / DEFAULT_DPI;
-		mmHeight = height * 25.4 / DEFAULT_DPI;
-	    }
-	}
-	xf86DrvMsg(pScrn->scrnIndex, X_INFO,
-		   "Setting screen physical size to %d x %d\n",
-		   mmWidth, mmHeight);
-	/*
-	 * This is the initial setting of the screen size.
-	 * We have to pre-set it here, otherwise panning would be adapted
-	 * to the new screen size.
-	 */
-	pScreen->width  = width;
-	pScreen->height = height;
-	xf86RandR12ScreenSetSize (pScreen,
-				  width,
-				  height,
-				  mmWidth,
-				  mmHeight);
-    }
-
-#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)
-    if (xf86RandR12Key == NULL)
-	return TRUE;
-#endif
-
-    if (randrp->virtualX == -1 || randrp->virtualY == -1)
-    {
-	randrp->virtualX = pScrn->virtualX;
-	randrp->virtualY = pScrn->virtualY;
-    }
-    xf86CrtcSetScreenSubpixelOrder (pScreen);
-#if RANDR_12_INTERFACE
-    if (xf86RandR12CreateScreenResources12 (pScreen))
-	return TRUE;
-#endif
-    return TRUE;
-}
-
-
-Bool
-xf86RandR12Init (ScreenPtr pScreen)
-{
-    rrScrPrivPtr	rp;
-    XF86RandRInfoPtr	randrp;
-
-#ifdef PANORAMIX
-    /* XXX disable RandR when using Xinerama */
-    if (!noPanoramiXExtension)
-    {
-        if (xf86NumScreens == 1)
-            noPanoramiXExtension = TRUE;
-        else
-            return TRUE;
-    }
-#endif
-
-    if (xf86RandR12Generation != serverGeneration)
-	xf86RandR12Generation = serverGeneration;
-
-#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)
-    xf86RandR12Key = &xf86RandR12KeyIndex;
-#else
-    xf86RandR12Index = AllocateScreenPrivateIndex();
-#endif
-
-    randrp = xalloc (sizeof (XF86RandRInfoRec));
-    if (!randrp)
-	return FALSE;
-
-    if (!RRScreenInit(pScreen))
-    {
-	xfree (randrp);
-	return FALSE;
-    }
-    rp = rrGetScrPriv(pScreen);
-    rp->rrGetInfo = xf86RandR12GetInfo;
-    rp->rrSetConfig = xf86RandR12SetConfig;
-
-    randrp->virtualX = -1;
-    randrp->virtualY = -1;
-    randrp->mmWidth = pScreen->mmWidth;
-    randrp->mmHeight = pScreen->mmHeight;
-
-    randrp->rotation = RR_Rotate_0; /* initial rotated mode */
-
-    randrp->supported_rotations = RR_Rotate_0;
-
-    randrp->maxX = randrp->maxY = 0;
-
-#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)
-    dixSetPrivate(&pScreen->devPrivates, xf86RandR12Key, randrp);
-#else
-    pScreen->devPrivates[xf86RandR12Index].ptr = randrp;
-#endif
-
-#if RANDR_12_INTERFACE
-    if (!xf86RandR12Init12 (pScreen))
-	return FALSE;
-#endif
-    return TRUE;
-}
-
-void
-xf86RandR12SetRotations (ScreenPtr pScreen, Rotation rotations)
-{
-    XF86RandRInfoPtr	randrp;
-#if RANDR_12_INTERFACE
-    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];
-    int			c;
-    xf86CrtcConfigPtr   config = XF86_CRTC_CONFIG_PTR(pScrn);
-#endif
-
-#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)
-    if (xf86RandR12Key == NULL)
-	return;
-#endif
-
-    randrp = XF86RANDRINFO(pScreen);
-#if RANDR_12_INTERFACE
-    for (c = 0; c < config->num_crtc; c++) {
-	xf86CrtcPtr    crtc = config->crtc[c];
-
-	RRCrtcSetRotations (crtc->randr_crtc, rotations);
-    }
-#endif
-    randrp->supported_rotations = rotations;
-}
-
-void
-xf86RandR12SetTransformSupport (ScreenPtr pScreen, Bool transforms)
-{
-    XF86RandRInfoPtr	randrp;
-#if RANDR_13_INTERFACE
-    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];
-    int			c;
-    xf86CrtcConfigPtr   config = XF86_CRTC_CONFIG_PTR(pScrn);
-#endif
-
-#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)
-    if (xf86RandR12Key == NULL)
-	return;
-#endif
-
-    randrp = XF86RANDRINFO(pScreen);
-#if RANDR_13_INTERFACE
-    for (c = 0; c < config->num_crtc; c++) {
-	xf86CrtcPtr    crtc = config->crtc[c];
-
-	RRCrtcSetTransformSupport (crtc->randr_crtc, transforms);
-    }
-#endif
-}
-
-void
-xf86RandR12GetOriginalVirtualSize(ScrnInfoPtr pScrn, int *x, int *y)
-{
-    ScreenPtr pScreen = screenInfo.screens[pScrn->scrnIndex];
-
-    if (xf86RandR12Generation != serverGeneration ||
-	XF86RANDRINFO(pScreen)->virtualX == -1)
-    {
-	*x = pScrn->virtualX;
-	*y = pScrn->virtualY;
-    } else {
-	XF86RandRInfoPtr randrp = XF86RANDRINFO(pScreen);
-
-	*x = randrp->virtualX;
-	*y = randrp->virtualY;
-    }
-}
-
-#if RANDR_12_INTERFACE
-
-#define FLAG_BITS (RR_HSyncPositive | \
-		   RR_HSyncNegative | \
-		   RR_VSyncPositive | \
-		   RR_VSyncNegative | \
-		   RR_Interlace | \
-		   RR_DoubleScan | \
-		   RR_CSync | \
-		   RR_CSyncPositive | \
-		   RR_CSyncNegative | \
-		   RR_HSkewPresent | \
-		   RR_BCast | \
-		   RR_PixelMultiplex | \
-		   RR_DoubleClock | \
-		   RR_ClockDivideBy2)
-
-static Bool
-xf86RandRModeMatches (RRModePtr		randr_mode,
-		      DisplayModePtr	mode)
-{
-#if 0
-    if (match_name)
-    {
-	/* check for same name */
-	int	len = strlen (mode->name);
-	if (randr_mode->mode.nameLength != len)			return FALSE;
-	if (memcmp (randr_mode->name, mode->name, len) != 0)	return FALSE;
-    }
-#endif
-    
-    /* check for same timings */
-    if (randr_mode->mode.dotClock / 1000 != mode->Clock)    return FALSE;
-    if (randr_mode->mode.width        != mode->HDisplay)    return FALSE;
-    if (randr_mode->mode.hSyncStart   != mode->HSyncStart)  return FALSE;
-    if (randr_mode->mode.hSyncEnd     != mode->HSyncEnd)    return FALSE;
-    if (randr_mode->mode.hTotal       != mode->HTotal)	    return FALSE;
-    if (randr_mode->mode.hSkew        != mode->HSkew)	    return FALSE;
-    if (randr_mode->mode.height       != mode->VDisplay)    return FALSE;
-    if (randr_mode->mode.vSyncStart   != mode->VSyncStart)  return FALSE;
-    if (randr_mode->mode.vSyncEnd     != mode->VSyncEnd)    return FALSE;
-    if (randr_mode->mode.vTotal       != mode->VTotal)	    return FALSE;
-    
-    /* check for same flags (using only the XF86 valid flag bits) */
-    if ((randr_mode->mode.modeFlags & FLAG_BITS) != (mode->Flags & FLAG_BITS))
-	return FALSE;
-    
-    /* everything matches */
-    return TRUE;
-}
-
-static Bool
-xf86RandR12CrtcNotify (RRCrtcPtr	randr_crtc)
-{
-    ScreenPtr		pScreen = randr_crtc->pScreen;
-    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];
-    xf86CrtcConfigPtr   config = XF86_CRTC_CONFIG_PTR(pScrn);
-    RRModePtr		randr_mode = NULL;
-    int			x;
-    int			y;
-    Rotation		rotation;
-    int			numOutputs;
-    RROutputPtr		*randr_outputs;
-    RROutputPtr		randr_output;
-    xf86CrtcPtr		crtc = randr_crtc->devPrivate;
-    xf86OutputPtr	output;
-    int			i, j;
-    DisplayModePtr	mode = &crtc->mode;
-    Bool		ret;
-
-    randr_outputs = xalloc(config->num_output * sizeof (RROutputPtr));
-    if (!randr_outputs)
-	return FALSE;
-    x = crtc->x;
-    y = crtc->y;
-    rotation = crtc->rotation;
-    numOutputs = 0;
-    randr_mode = NULL;
-    for (i = 0; i < config->num_output; i++)
-    {
-	output = config->output[i];
-	if (output->crtc == crtc)
-	{
-	    randr_output = output->randr_output;
-	    randr_outputs[numOutputs++] = randr_output;
-	    /*
-	     * We make copies of modes, so pointer equality 
-	     * isn't sufficient
-	     */
-	    for (j = 0; j < randr_output->numModes + randr_output->numUserModes; j++)
-	    {
-		RRModePtr   m = (j < randr_output->numModes ?
-				 randr_output->modes[j] :
-				 randr_output->userModes[j-randr_output->numModes]);
-					 
-		if (xf86RandRModeMatches (m, mode))
-		{
-		    randr_mode = m;
-		    break;
-		}
-	    }
-	}
-    }
-    ret = RRCrtcNotify (randr_crtc, randr_mode, x, y,
-			rotation, 
-			crtc->transformPresent ? &crtc->transform : NULL,
-			numOutputs, randr_outputs);
-    xfree(randr_outputs);
-    return ret;
-}
-
-/*
- * Convert a RandR mode to a DisplayMode
- */
-static void
-xf86RandRModeConvert (ScrnInfoPtr	scrn,
-		      RRModePtr		randr_mode,
-		      DisplayModePtr	mode)
-{
-    memset(mode, 0, sizeof(DisplayModeRec));
-    mode->status = MODE_OK;
-
-    mode->Clock = randr_mode->mode.dotClock / 1000;
-    
-    mode->HDisplay = randr_mode->mode.width;
-    mode->HSyncStart = randr_mode->mode.hSyncStart;
-    mode->HSyncEnd = randr_mode->mode.hSyncEnd;
-    mode->HTotal = randr_mode->mode.hTotal;
-    mode->HSkew = randr_mode->mode.hSkew;
-    
-    mode->VDisplay = randr_mode->mode.height;
-    mode->VSyncStart = randr_mode->mode.vSyncStart;
-    mode->VSyncEnd = randr_mode->mode.vSyncEnd;
-    mode->VTotal = randr_mode->mode.vTotal;
-    mode->VScan = 0;
-
-    mode->Flags = randr_mode->mode.modeFlags & FLAG_BITS;
-
-    xf86SetModeCrtc (mode, scrn->adjustFlags);
-}
-
-static Bool
-xf86RandR12CrtcSet (ScreenPtr	    pScreen,
-		    RRCrtcPtr	    randr_crtc,
-		    RRModePtr	    randr_mode,
-		    int		    x,
-		    int		    y,
-		    Rotation	    rotation,
-		    int		    num_randr_outputs,
-		    RROutputPtr	    *randr_outputs)
-{
-    XF86RandRInfoPtr	randrp = XF86RANDRINFO(pScreen);
-    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];
-    xf86CrtcConfigPtr   config = XF86_CRTC_CONFIG_PTR(pScrn);
-    xf86CrtcPtr		crtc = randr_crtc->devPrivate;
-    RRTransformPtr	transform;
-    Bool		changed = FALSE;
-    int			o, ro;
-    xf86CrtcPtr		*save_crtcs;
-    Bool		save_enabled = crtc->enabled;
-
-    if (!crtc->scrn->vtSema)
-	return FALSE;
-
-    save_crtcs = xalloc(config->num_output * sizeof (xf86CrtcPtr));
-    if ((randr_mode != NULL) != crtc->enabled)
-	changed = TRUE;
-    else if (randr_mode && !xf86RandRModeMatches (randr_mode, &crtc->mode))
-	changed = TRUE;
-    
-    if (rotation != crtc->rotation)
-	changed = TRUE;
-
-    transform = RRCrtcGetTransform (randr_crtc);
-    if ((transform != NULL) != crtc->transformPresent)
-	changed = TRUE;
-    else if (transform && memcmp (&transform->transform, &crtc->transform.transform,
-				  sizeof (transform->transform)) != 0)
-	changed = TRUE;
-
-    if (x != crtc->x || y != crtc->y)
-	changed = TRUE;
-    for (o = 0; o < config->num_output; o++) 
-    {
-	xf86OutputPtr  output = config->output[o];
-	xf86CrtcPtr    new_crtc;
-
-	save_crtcs[o] = output->crtc;
-	
-	if (output->crtc == crtc)
-	    new_crtc = NULL;
-	else
-	    new_crtc = output->crtc;
-	for (ro = 0; ro < num_randr_outputs; ro++) 
-	    if (output->randr_output == randr_outputs[ro])
-	    {
-		new_crtc = crtc;
-		break;
-	    }
-	if (new_crtc != output->crtc)
-	{
-	    changed = TRUE;
-	    output->crtc = new_crtc;
-	}
-    }
-    for (ro = 0; ro < num_randr_outputs; ro++) 
-        if (randr_outputs[ro]->pendingProperties)
-	    changed = TRUE;
-
-    /* XXX need device-independent mode setting code through an API */
-    if (changed)
-    {
-	crtc->enabled = randr_mode != NULL;
-
-	if (randr_mode)
-	{
-	    DisplayModeRec  mode;
-	    RRTransformPtr  transform = RRCrtcGetTransform (randr_crtc);
-
-	    xf86RandRModeConvert (pScrn, randr_mode, &mode);
-	    if (!xf86CrtcSetModeTransform (crtc, &mode, rotation, transform, x, y))
-	    {
-		crtc->enabled = save_enabled;
-		for (o = 0; o < config->num_output; o++)
-		{
-		    xf86OutputPtr	output = config->output[o];
-		    output->crtc = save_crtcs[o];
-		}
-		xfree(save_crtcs);
-		return FALSE;
-	    }
-	    xf86RandR13VerifyPanningArea (crtc, pScreen->width, pScreen->height);
-	    xf86RandR13Pan (crtc, randrp->pointerX, randrp->pointerY);
-	    /*
-	     * Save the last successful setting for EnterVT
-	     */
-	    crtc->desiredMode = mode;
-	    crtc->desiredRotation = rotation;
-	    if (transform) {
-		crtc->desiredTransform = *transform;
-		crtc->desiredTransformPresent = TRUE;
-	    } else
-		crtc->desiredTransformPresent = FALSE;
-
-	    crtc->desiredX = x;
-	    crtc->desiredY = y;
-	}
-	xf86DisableUnusedFunctions (pScrn);
-    }
-    xfree(save_crtcs);
-    return xf86RandR12CrtcNotify (randr_crtc);
-}
-
-static Bool
-xf86RandR12CrtcSetGamma (ScreenPtr    pScreen,
-			 RRCrtcPtr    randr_crtc)
-{
-    xf86CrtcPtr		crtc = randr_crtc->devPrivate;
-
-    if (crtc->funcs->gamma_set == NULL)
-	return FALSE;
-
-    if (!crtc->scrn->vtSema)
-	return TRUE;
-
-    /* Realloc local gamma if needed. */
-    if (randr_crtc->gammaSize != crtc->gamma_size) {
-        CARD16 *tmp_ptr;
-        tmp_ptr = realloc(crtc->gamma_red, 3 * crtc->gamma_size * sizeof (CARD16));
-        if (!tmp_ptr)
-            return FALSE;
-        crtc->gamma_red = tmp_ptr;
-        crtc->gamma_green = crtc->gamma_red + crtc->gamma_size;
-        crtc->gamma_blue = crtc->gamma_green + crtc->gamma_size;
-    }
-
-    crtc->gamma_size = randr_crtc->gammaSize;
-    memcpy (crtc->gamma_red, randr_crtc->gammaRed, crtc->gamma_size * sizeof (CARD16));
-    memcpy (crtc->gamma_green, randr_crtc->gammaGreen, crtc->gamma_size * sizeof (CARD16));
-    memcpy (crtc->gamma_blue, randr_crtc->gammaBlue, crtc->gamma_size * sizeof (CARD16));
-
-    /* Only set it when the crtc is actually running.
-     * Otherwise it will be set when it's activated.
-     */
-    if (crtc->active)
-	crtc->funcs->gamma_set(crtc, crtc->gamma_red, crtc->gamma_green,
-						crtc->gamma_blue, crtc->gamma_size);
-
-    return TRUE;
-}
-
-static Bool
-xf86RandR12CrtcGetGamma (ScreenPtr    pScreen,
-			 RRCrtcPtr    randr_crtc)
-{
-    xf86CrtcPtr crtc = randr_crtc->devPrivate;
-
-    if (!crtc->gamma_size)
-        return FALSE;
-
-    if (!crtc->gamma_red || !crtc->gamma_green || !crtc->gamma_blue)
-        return FALSE;
-
-    /* Realloc randr gamma if needed. */
-    if (randr_crtc->gammaSize != crtc->gamma_size) {
-        CARD16 *tmp_ptr;
-        tmp_ptr = realloc(randr_crtc->gammaRed, 3 * crtc->gamma_size * sizeof (CARD16));
-        if (!tmp_ptr)
-            return FALSE;
-        randr_crtc->gammaRed = tmp_ptr;
-        randr_crtc->gammaGreen = randr_crtc->gammaRed + crtc->gamma_size;
-        randr_crtc->gammaBlue = randr_crtc->gammaGreen + crtc->gamma_size;
-    }
-    randr_crtc->gammaSize = crtc->gamma_size;
-    memcpy (randr_crtc->gammaRed, crtc->gamma_red, crtc->gamma_size * sizeof (CARD16));
-    memcpy (randr_crtc->gammaGreen, crtc->gamma_green, crtc->gamma_size * sizeof (CARD16));
-    memcpy (randr_crtc->gammaBlue, crtc->gamma_blue, crtc->gamma_size * sizeof (CARD16));
-
-    return TRUE;
-}
-
-static Bool
-xf86RandR12OutputSetProperty (ScreenPtr pScreen,
-			      RROutputPtr randr_output,
-			      Atom property,
-			      RRPropertyValuePtr value)
-{
-    xf86OutputPtr output = randr_output->devPrivate;
-
-    /* If we don't have any property handler, then we don't care what the
-     * user is setting properties to.
-     */
-    if (output->funcs->set_property == NULL)
-	return TRUE;
-
-    /*
-     * This function gets called even when vtSema is FALSE, as
-     * drivers will need to remember the correct value to apply
-     * when the VT switch occurs
-     */
-    return output->funcs->set_property(output, property, value);
-}
-
-static Bool
-xf86RandR13OutputGetProperty (ScreenPtr pScreen,
-			      RROutputPtr randr_output,
-			      Atom property)
-{
-    xf86OutputPtr output = randr_output->devPrivate;
-
-    if (output->funcs->get_property == NULL)
-	return TRUE;
-
-    /* Should be safe even w/o vtSema */
-    return output->funcs->get_property(output, property);
-}
-
-static Bool
-xf86RandR12OutputValidateMode (ScreenPtr    pScreen,
-			       RROutputPtr  randr_output,
-			       RRModePtr    randr_mode)
-{
-    ScrnInfoPtr	    pScrn = xf86Screens[pScreen->myNum];
-    xf86OutputPtr   output = randr_output->devPrivate;
-    DisplayModeRec  mode;
-
-    xf86RandRModeConvert (pScrn, randr_mode, &mode);
-    /*
-     * This function may be called when vtSema is FALSE, so
-     * the underlying function must either avoid touching the hardware
-     * or return FALSE when vtSema is FALSE
-     */
-    if (output->funcs->mode_valid (output, &mode) != MODE_OK)
-	return FALSE;
-    return TRUE;
-}
-
-static void
-xf86RandR12ModeDestroy (ScreenPtr pScreen, RRModePtr randr_mode)
-{
-}
-
-/**
- * Given a list of xf86 modes and a RandR Output object, construct
- * RandR modes and assign them to the output
- */
-static Bool
-xf86RROutputSetModes (RROutputPtr randr_output, DisplayModePtr modes)
-{
-    DisplayModePtr  mode;
-    RRModePtr	    *rrmodes = NULL;
-    int		    nmode = 0;
-    int		    npreferred = 0;
-    Bool	    ret = TRUE;
-    int		    pref;
-
-    for (mode = modes; mode; mode = mode->next)
-	nmode++;
-
-    if (nmode) {
-	rrmodes = xalloc (nmode * sizeof (RRModePtr));
-	
-	if (!rrmodes)
-	    return FALSE;
-	nmode = 0;
-
-	for (pref = 1; pref >= 0; pref--) {
-	    for (mode = modes; mode; mode = mode->next) {
-		if ((pref != 0) == ((mode->type & M_T_PREFERRED) != 0)) {
-		    xRRModeInfo		modeInfo;
-		    RRModePtr		rrmode;
-		    
-		    modeInfo.nameLength = strlen (mode->name);
-		    modeInfo.width = mode->HDisplay;
-		    modeInfo.dotClock = mode->Clock * 1000;
-		    modeInfo.hSyncStart = mode->HSyncStart;
-		    modeInfo.hSyncEnd = mode->HSyncEnd;
-		    modeInfo.hTotal = mode->HTotal;
-		    modeInfo.hSkew = mode->HSkew;
-
-		    modeInfo.height = mode->VDisplay;
-		    modeInfo.vSyncStart = mode->VSyncStart;
-		    modeInfo.vSyncEnd = mode->VSyncEnd;
-		    modeInfo.vTotal = mode->VTotal;
-		    modeInfo.modeFlags = mode->Flags;
-
-		    rrmode = RRModeGet (&modeInfo, mode->name);
-		    if (rrmode) {
-			rrmodes[nmode++] = rrmode;
-			npreferred += pref;
-		    }
-		}
-	    }
-	}
-    }
-    
-    ret = RROutputSetModes (randr_output, rrmodes, nmode, npreferred);
-    xfree (rrmodes);
-    return ret;
-}
-
-/*
- * Mirror the current mode configuration to RandR
- */
-static Bool
-xf86RandR12SetInfo12 (ScreenPtr pScreen)
-{
-    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];
-    xf86CrtcConfigPtr   config = XF86_CRTC_CONFIG_PTR(pScrn);
-    RROutputPtr		*clones;
-    RRCrtcPtr		*crtcs;
-    int			ncrtc;
-    int			o, c, l;
-    RRCrtcPtr		randr_crtc;
-    int			nclone;
-    
-    clones = xalloc(config->num_output * sizeof (RROutputPtr));
-    crtcs = xalloc (config->num_crtc * sizeof (RRCrtcPtr));
-    for (o = 0; o < config->num_output; o++)
-    {
-	xf86OutputPtr	output = config->output[o];
-	
-	ncrtc = 0;
-	for (c = 0; c < config->num_crtc; c++)
-	    if (output->possible_crtcs & (1 << c))
-		crtcs[ncrtc++] = config->crtc[c]->randr_crtc;
-
-	if (output->crtc)
-	    randr_crtc = output->crtc->randr_crtc;
-	else
-	    randr_crtc = NULL;
-
-	if (!RROutputSetCrtcs (output->randr_output, crtcs, ncrtc))
-	{
-	    xfree (crtcs);
-	    xfree (clones);
-	    return FALSE;
-	}
-
-	RROutputSetPhysicalSize(output->randr_output, 
-				output->mm_width,
-				output->mm_height);
-	xf86RROutputSetModes (output->randr_output, output->probed_modes);
-
-	switch (output->status) {
-	case XF86OutputStatusConnected:
-	    RROutputSetConnection (output->randr_output, RR_Connected);
-	    break;
-	case XF86OutputStatusDisconnected:
-	    RROutputSetConnection (output->randr_output, RR_Disconnected);
-	    break;
-	case XF86OutputStatusUnknown:
-	    RROutputSetConnection (output->randr_output, RR_UnknownConnection);
-	    break;
-	}
-
-	RROutputSetSubpixelOrder (output->randr_output, output->subpixel_order);
-
-	/*
-	 * Valid clones
-	 */
-	nclone = 0;
-	for (l = 0; l < config->num_output; l++)
-	{
-	    xf86OutputPtr	    clone = config->output[l];
-	    
-	    if (l != o && (output->possible_clones & (1 << l)))
-		clones[nclone++] = clone->randr_output;
-	}
-	if (!RROutputSetClones (output->randr_output, clones, nclone))
-	{
-	    xfree (crtcs);
-	    xfree (clones);
-	    return FALSE;
-	}
-    }
-    xfree (crtcs);
-    xfree (clones);
-    return TRUE;
-}
-
-
-
-/*
- * Query the hardware for the current state, then mirror
- * that to RandR
- */
-static Bool
-xf86RandR12GetInfo12 (ScreenPtr pScreen, Rotation *rotations)
-{
-    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];
-
-    if (!pScrn->vtSema)
-	return TRUE;
-    xf86ProbeOutputModes (pScrn, 0, 0);
-    xf86SetScrnInfoModes (pScrn);
-    return xf86RandR12SetInfo12 (pScreen);
-}
-
-static Bool
-xf86RandR12CreateObjects12 (ScreenPtr pScreen)
-{
-    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];
-    xf86CrtcConfigPtr   config = XF86_CRTC_CONFIG_PTR(pScrn);
-    int			c;
-    int			o;
-    
-    if (!RRInit ())
-	return FALSE;
-
-    /*
-     * Configure crtcs
-     */
-    for (c = 0; c < config->num_crtc; c++)
-    {
-	xf86CrtcPtr    crtc = config->crtc[c];
-	
-	crtc->randr_crtc = RRCrtcCreate (pScreen, crtc);
-	RRCrtcGammaSetSize (crtc->randr_crtc, 256);
-    }
-    /*
-     * Configure outputs
-     */
-    for (o = 0; o < config->num_output; o++)
-    {
-	xf86OutputPtr	output = config->output[o];
-
-	output->randr_output = RROutputCreate (pScreen, output->name, 
-					       strlen (output->name),
-					       output);
-
-	if (output->funcs->create_resources != NULL)
-	    output->funcs->create_resources(output);
-	RRPostPendingProperties (output->randr_output);
-    }
-    return TRUE;
-}
-
-static Bool
-xf86RandR12CreateScreenResources12 (ScreenPtr pScreen)
-{
-    int			c;
-    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];
-    xf86CrtcConfigPtr   config = XF86_CRTC_CONFIG_PTR(pScrn);
-
-#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)
-    if (xf86RandR12Key == NULL)
-	return TRUE;
-#endif
-
-    for (c = 0; c < config->num_crtc; c++)
-        xf86RandR12CrtcNotify (config->crtc[c]->randr_crtc);
-    
-    RRScreenSetSizeRange (pScreen, config->minWidth, config->minHeight,
-			  config->maxWidth, config->maxHeight);
-    return TRUE;
-}
-
-/*
- * Something happened within the screen configuration due
- * to DGA, VidMode or hot key. Tell RandR
- */
-
-void
-xf86RandR12TellChanged (ScreenPtr pScreen)
-{
-    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];
-    xf86CrtcConfigPtr   config = XF86_CRTC_CONFIG_PTR(pScrn);
-    int			c;
-
-#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)
-    if (xf86RandR12Key == NULL)
-	return;
-#else
-    if (!XF86RANDRINFO(pScreen))
-	return;
-#endif
-
-    xf86RandR12SetInfo12 (pScreen);
-    for (c = 0; c < config->num_crtc; c++)
-	xf86RandR12CrtcNotify (config->crtc[c]->randr_crtc);
-
-    RRTellChanged (pScreen);
-}
-
-static void
-xf86RandR12PointerMoved (int scrnIndex, int x, int y)
-{
-    ScreenPtr		pScreen = screenInfo.screens[scrnIndex];
-    ScrnInfoPtr		pScrn   = XF86SCRNINFO(pScreen);
-    xf86CrtcConfigPtr	config  = XF86_CRTC_CONFIG_PTR(pScrn);
-    XF86RandRInfoPtr	randrp  = XF86RANDRINFO(pScreen);
-    int c;
-
-    randrp->pointerX = x;
-    randrp->pointerY = y;
-    for (c = 0; c < config->num_crtc; c++)
-	xf86RandR13Pan (config->crtc[c], x, y);
-}
-
-static Bool
-xf86RandR13GetPanning (ScreenPtr           pScreen,
-		       RRCrtcPtr           randr_crtc,
-		       BoxPtr              totalArea,
-		       BoxPtr              trackingArea,
-		       INT16               *border)
-{
-    xf86CrtcPtr		crtc = randr_crtc->devPrivate;
-
-    if (crtc->version < 2)
-	return FALSE;
-    if (totalArea)
-	memcpy (totalArea,    &crtc->panningTotalArea,    sizeof(BoxRec));
-    if (trackingArea)
-	memcpy (trackingArea, &crtc->panningTrackingArea, sizeof(BoxRec));
-    if (border)
-	memcpy (border,        crtc->panningBorder,       4*sizeof(INT16));
-
-    return TRUE;
-}
-
-static Bool
-xf86RandR13SetPanning (ScreenPtr           pScreen,
-		       RRCrtcPtr           randr_crtc,
-		       BoxPtr              totalArea,
-		       BoxPtr              trackingArea,
-		       INT16               *border)
-{
-    XF86RandRInfoPtr	randrp  = XF86RANDRINFO(pScreen);
-    xf86CrtcPtr		crtc = randr_crtc->devPrivate;
-    BoxRec		oldTotalArea;
-    BoxRec		oldTrackingArea;
-    INT16		oldBorder[4];
-
-
-    if (crtc->version < 2)
-	return FALSE;
-
-    memcpy (&oldTotalArea,    &crtc->panningTotalArea,    sizeof(BoxRec));
-    memcpy (&oldTrackingArea, &crtc->panningTrackingArea, sizeof(BoxRec));
-    memcpy (oldBorder,         crtc->panningBorder,       4*sizeof(INT16));
-
-    if (totalArea)
-	memcpy (&crtc->panningTotalArea, totalArea, sizeof(BoxRec));
-    if (trackingArea)
-	memcpy (&crtc->panningTrackingArea, trackingArea, sizeof(BoxRec));
-    if (border)
-	memcpy (crtc->panningBorder, border, 4*sizeof(INT16));
-
-    if (xf86RandR13VerifyPanningArea (crtc, pScreen->width, pScreen->height)) {
-	xf86RandR13Pan (crtc, randrp->pointerX, randrp->pointerY);
-	return TRUE;
-    } else {
-	/* Restore old settings */
-	memcpy (&crtc->panningTotalArea,    &oldTotalArea,    sizeof(BoxRec));
-	memcpy (&crtc->panningTrackingArea, &oldTrackingArea, sizeof(BoxRec));
-	memcpy (crtc->panningBorder,         oldBorder,       4*sizeof(INT16));
-	return FALSE;
-    }
-}
-
-/*
- * Compatibility with XF86VidMode's gamma changer.  This necessarily clobbers
- * any per-crtc setup.  You asked for it...
- */
-
-static void
-gamma_to_ramp(float gamma, CARD16 *ramp, int size)
-{
-    int i;
-
-    for (i = 0; i < size; i++) {
-	if (gamma == 1.0)
-	    ramp[i] = i << 8;
-	else
-	    ramp[i] = (CARD16)(pow((double)i / (double)(size - 1), 1. / gamma)
-			       * (double)(size - 1) * 256);
-    }
-}
-
-static int
-xf86RandR12ChangeGamma(int scrnIndex, Gamma gamma)
-{
-    CARD16 *points, *red, *green, *blue;
-    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
-    RRCrtcPtr crtc = xf86CompatRRCrtc(pScrn);
-    int size;
-
-    if (!crtc)
-	return Success;
-
-    size = max(0, crtc->gammaSize);
-    if (!size)
-	return Success;
-
-    points = xcalloc(size, 3 * sizeof(CARD16));
-    if (!points)
-	return BadAlloc;
-
-    red = points;
-    green = points + size;
-    blue = points + 2 * size;
-
-    gamma_to_ramp(gamma.red, red, size);
-    gamma_to_ramp(gamma.green, green, size);
-    gamma_to_ramp(gamma.blue, blue, size);
-    RRCrtcGammaSet(crtc, red, green, blue);
-
-    xfree(points);
-
-    pScrn->gamma = gamma;
-
-    return Success;
-}
-
-static Bool
-xf86RandR12EnterVT (int screen_index, int flags)
-{
-    ScreenPtr        pScreen = screenInfo.screens[screen_index];
-    XF86RandRInfoPtr randrp  = XF86RANDRINFO(pScreen);
-
-    if (randrp->orig_EnterVT) {
-	if (!randrp->orig_EnterVT (screen_index, flags))
-	    return FALSE;
-    }
-
-    return RRGetInfo (pScreen, TRUE); /* force a re-probe of outputs and notify clients about changes */
-}
-
-static Bool
-xf86RandR12Init12 (ScreenPtr pScreen)
-{
-    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];
-    rrScrPrivPtr	rp = rrGetScrPriv(pScreen);
-    XF86RandRInfoPtr	randrp  = XF86RANDRINFO(pScreen);
-
-    rp->rrGetInfo = xf86RandR12GetInfo12;
-    rp->rrScreenSetSize = xf86RandR12ScreenSetSize;
-    rp->rrCrtcSet = xf86RandR12CrtcSet;
-    rp->rrCrtcSetGamma = xf86RandR12CrtcSetGamma;
-    rp->rrCrtcGetGamma = xf86RandR12CrtcGetGamma;
-    rp->rrOutputSetProperty = xf86RandR12OutputSetProperty;
-    rp->rrOutputValidateMode = xf86RandR12OutputValidateMode;
-#if RANDR_13_INTERFACE
-    rp->rrOutputGetProperty = xf86RandR13OutputGetProperty;
-    rp->rrGetPanning = xf86RandR13GetPanning;
-    rp->rrSetPanning = xf86RandR13SetPanning;
-#endif
-    rp->rrModeDestroy = xf86RandR12ModeDestroy;
-    rp->rrSetConfig = NULL;
-    pScrn->PointerMoved = xf86RandR12PointerMoved;
-    pScrn->ChangeGamma = xf86RandR12ChangeGamma;
-
-    randrp->orig_EnterVT = pScrn->EnterVT;
-    pScrn->EnterVT = xf86RandR12EnterVT;
-
-    if (!xf86RandR12CreateObjects12 (pScreen))
-	return FALSE;
-
-    /*
-     * Configure output modes
-     */
-    if (!xf86RandR12SetInfo12 (pScreen))
-	return FALSE;
-    return TRUE;
-}
-
-#endif
-
-Bool
-xf86RandR12PreInit (ScrnInfoPtr pScrn)
-{
-    return TRUE;
-}
+/*

+ * Copyright © 2002 Keith Packard, member of The XFree86 Project, Inc.

+ *

+ * 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>

+#else

+#ifdef HAVE_CONFIG_H

+#include <config.h>

+#endif

+#endif

+

+#include "xf86.h"

+#include "os.h"

+#include "globals.h"

+#include "xf86.h"

+#include "xf86Priv.h"

+#include "xf86DDC.h"

+#include "mipointer.h"

+#include "windowstr.h"

+#include "inputstr.h"

+#include <randrstr.h>

+#include <X11/extensions/render.h>

+

+#include "xf86Crtc.h"

+#include "xf86RandR12.h"

+

+typedef struct _xf86RandR12Info {

+    int				    virtualX;

+    int				    virtualY;

+    int				    mmWidth;

+    int				    mmHeight;

+    int				    maxX;

+    int				    maxY;

+    int				    pointerX;

+    int				    pointerY;

+    Rotation			    rotation; /* current mode */

+    Rotation                        supported_rotations; /* driver supported */

+

+    /* Used to wrap EnterVT so we can re-probe the outputs when a laptop unsuspends

+     * (actually, any time that we switch back into our VT).

+     *

+     * See https://bugs.freedesktop.org/show_bug.cgi?id=21554

+     */

+    xf86EnterVTProc *orig_EnterVT;

+} XF86RandRInfoRec, *XF86RandRInfoPtr;

+

+#ifdef RANDR_12_INTERFACE

+static Bool xf86RandR12Init12 (ScreenPtr pScreen);

+static Bool xf86RandR12CreateScreenResources12 (ScreenPtr pScreen);

+#endif

+

+static int xf86RandR12Generation;

+#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)

+

+static int xf86RandR12KeyIndex;

+static DevPrivateKey xf86RandR12Key;

+#define XF86RANDRINFO(p) ((XF86RandRInfoPtr) \

+    dixLookupPrivate(&(p)->devPrivates, xf86RandR12Key))

+

+#else /* XORG_VERSION_CURRENT < 7.0 */

+

+static int xf86RandR12Index;

+#define XF86RANDRINFO(p) \

+    ((XF86RandRInfoPtr)(p)->devPrivates[xf86RandR12Index].ptr)

+

+#endif /* XORG_VERSION_CURRENT < 7.0 */

+

+

+static int

+xf86RandR12ModeRefresh (DisplayModePtr mode)

+{

+    if (mode->VRefresh)

+	return (int) (mode->VRefresh + 0.5);

+    else

+	return (int) (mode->Clock * 1000.0 / mode->HTotal / mode->VTotal + 0.5);

+}

+

+/* Adapt panning area; return TRUE if panning area was valid without adaption */

+static int

+xf86RandR13VerifyPanningArea (xf86CrtcPtr crtc, int screenWidth, int screenHeight)

+{

+    int ret = TRUE;

+

+    if (crtc->version < 2)

+	return FALSE;

+

+    if (crtc->panningTotalArea.x2 <= crtc->panningTotalArea.x1) {

+	/* Panning in X is disabled */

+	if (crtc->panningTotalArea.x1 || crtc->panningTotalArea.x2)

+	    /* Illegal configuration -> fail/disable */

+	    ret = FALSE;

+	crtc->panningTotalArea.x1    = crtc->panningTotalArea.x2    = 0;

+	crtc->panningTrackingArea.x1 = crtc->panningTrackingArea.x2 = 0;

+	crtc->panningBorder[0]       = crtc->panningBorder[2]       = 0;

+    } else {

+	/* Panning in X is enabled */

+	if (crtc->panningTotalArea.x1 < 0) {

+	    /* Panning region outside screen -> move inside */

+	    crtc->panningTotalArea.x2 -= crtc->panningTotalArea.x1;

+	    crtc->panningTotalArea.x1 = 0;

+	    ret = FALSE;

+	}

+	if (crtc->panningTotalArea.x2 < crtc->panningTotalArea.x1 + crtc->mode.HDisplay) {

+	    /* Panning region smaller than displayed area -> crop to displayed area */

+	    crtc->panningTotalArea.x2 = crtc->panningTotalArea.x1 + crtc->mode.HDisplay;

+	    ret = FALSE;

+	}

+	if (crtc->panningTotalArea.x2 > screenWidth) {

+	    /* Panning region larger than screen -> move inside, then crop to screen */

+	    crtc->panningTotalArea.x1 -= crtc->panningTotalArea.x2 - screenWidth;

+	    crtc->panningTotalArea.x2 = screenWidth;

+	    ret = FALSE;

+	    if (crtc->panningTotalArea.x1 < 0)

+		crtc->panningTotalArea.x1 = 0;

+	}

+	if (crtc->panningBorder[0] + crtc->panningBorder[2] > crtc->mode.HDisplay) {

+	    /* Borders too large -> set to 0 */

+	    crtc->panningBorder[0] = crtc->panningBorder[2] = 0;

+	    ret = FALSE;

+	}

+    }

+

+    if (crtc->panningTotalArea.y2 <= crtc->panningTotalArea.y1) {

+	/* Panning in Y is disabled */

+	if (crtc->panningTotalArea.y1 || crtc->panningTotalArea.y2)

+	    /* Illegal configuration -> fail/disable */

+	    ret = FALSE;

+	crtc->panningTotalArea.y1    = crtc->panningTotalArea.y2    = 0;

+	crtc->panningTrackingArea.y1 = crtc->panningTrackingArea.y2 = 0;

+	crtc->panningBorder[1]       = crtc->panningBorder[3]       = 0;

+    } else {

+	/* Panning in Y is enabled */

+	if (crtc->panningTotalArea.y1 < 0) {

+	    /* Panning region outside screen -> move inside */

+	    crtc->panningTotalArea.y2 -= crtc->panningTotalArea.y1;

+	    crtc->panningTotalArea.y1 = 0;

+	    ret = FALSE;

+	}

+	if (crtc->panningTotalArea.y2 < crtc->panningTotalArea.y1 + crtc->mode.VDisplay) {

+	    /* Panning region smaller than displayed area -> crop to displayed area */

+	    crtc->panningTotalArea.y2 = crtc->panningTotalArea.y1 + crtc->mode.VDisplay;

+	    ret = FALSE;

+	}

+	if (crtc->panningTotalArea.y2 > screenHeight) {

+	    /* Panning region larger than screen -> move inside, then crop to screen */

+	    crtc->panningTotalArea.y1 -= crtc->panningTotalArea.y2 - screenHeight;

+	    crtc->panningTotalArea.y2 = screenHeight;

+	    ret = FALSE;

+	    if (crtc->panningTotalArea.y1 < 0)

+		crtc->panningTotalArea.y1 = 0;

+	}

+	if (crtc->panningBorder[1] + crtc->panningBorder[3] > crtc->mode.VDisplay) {

+	    /* Borders too large -> set to 0 */

+	    crtc->panningBorder[1] = crtc->panningBorder[3] = 0;

+	    ret = FALSE;

+	}

+    }

+

+    return ret;

+}

+

+/*

+ * The heart of the panning operation:

+ *

+ * Given a frame buffer position (fb_x, fb_y),

+ * and a crtc position (crtc_x, crtc_y),

+ * and a transform matrix which maps frame buffer to crtc,

+ * compute a panning position (pan_x, pan_y) that

+ * makes the resulting transform line those two up

+ */

+

+static void

+xf86ComputeCrtcPan (Bool transform_in_use,

+		    struct pixman_f_transform *m,

+		    double screen_x, double screen_y,

+		    double crtc_x, double crtc_y,

+		    int old_pan_x, int old_pan_y,

+		    int *new_pan_x, int *new_pan_y)

+{

+    if (transform_in_use) {

+	/*

+	 * Given the current transform, M, the current position

+	 * on the Screen, S, and the desired position on the CRTC,

+	 * C, compute a translation, T, such that:

+	 *

+	 * M T S = C

+	 *

+	 * where T is of the form

+	 *

+	 * | 1 0 dx |

+	 * | 0 1 dy |

+	 * | 0 0 1  |

+	 *

+	 * M T S =

+	 *   | M00 Sx + M01 Sy + M00 dx + M01 dy + M02 |   | Cx F |

+	 *   | M10 Sx + M11 Sy + M10 dx + M11 dy + M12 | = | Cy F |

+	 *   | M20 Sx + M21 Sy + M20 dx + M21 dy + M22 |   |  F   |

+	 *

+	 * R = M S

+	 *

+	 *   Cx F = M00 dx + M01 dy + R0

+	 *   Cy F = M10 dx + M11 dy + R1

+	 *      F = M20 dx + M21 dy + R2

+	 *

+	 * Zero out dx, then dy

+	 *

+	 * F (Cx M10 - Cy M00) =

+	 *	    (M10 M01 - M00 M11) dy + M10 R0 - M00 R1

+	 * F (M10 - Cy M20) =

+	 *	    (M10 M21 - M20 M11) dy + M10 R2 - M20 R1

+	 *

+	 * F (Cx M11 - Cy M01) =

+	 *	    (M11 M00 - M01 M10) dx + M11 R0 - M01 R1

+	 * F (M11 - Cy M21) =

+	 *	    (M11 M20 - M21 M10) dx + M11 R2 - M21 R1

+	 *

+	 * Make some temporaries

+	 *

+	 * T = | Cx M10 - Cy M00 |

+	 *     | Cx M11 - Cy M01 |

+	 *

+	 * U = | M10 M01 - M00 M11 |

+	 *     | M11 M00 - M01 M10 |

+	 *

+	 * Q = | M10 R0 - M00 R1 |

+	 *     | M11 R0 - M01 R1 |

+	 *

+	 * P = | M10 - Cy M20 |

+	 *     | M11 - Cy M21 |

+	 *

+	 * W = | M10 M21 - M20 M11 |

+	 *     | M11 M20 - M21 M10 |

+	 *

+	 * V = | M10 R2 - M20 R1 |

+	 *	   | M11 R2 - M21 R1 |

+	 *

+	 * Rewrite:

+	 *

+	 * F T0 = U0 dy + Q0

+	 * F P0 = W0 dy + V0

+	 * F T1 = U1 dx + Q1

+	 * F P1 = W1 dx + V1

+	 *

+	 * Solve for F (two ways)

+	 *

+	 * F (W0 T0 - U0 P0)  = W0 Q0 - U0 V0

+	 *

+	 *     W0 Q0 - U0 V0

+	 * F = -------------

+	 *     W0 T0 - U0 P0

+	 *

+	 * F (W1 T1 - U1 P1) = W1 Q1 - U1 V1

+	 *

+	 *     W1 Q1 - U1 V1

+	 * F = -------------

+	 *     W1 T1 - U1 P1

+	 *

+	 * We'll use which ever solution works (denominator != 0)

+	 *

+	 * Finally, solve for dx and dy:

+	 *

+	 * dx = (F T1 - Q1) / U1

+	 * dx = (F P1 - V1) / W1

+	 *

+	 * dy = (F T0 - Q0) / U0

+	 * dy = (F P0 - V0) / W0

+	 */

+	double			    r[3];

+	double			    q[2], u[2], t[2], v[2], w[2], p[2];

+	double			    f;

+	struct pict_f_vector	    d;

+	int			    i;

+

+	/* Get the un-normalized crtc coordinates again */

+	for (i = 0; i < 3; i++)

+	    r[i] = m->m[i][0] * screen_x + m->m[i][1] * screen_y + m->m[i][2];

+

+	/* Combine values into temporaries */

+	for (i = 0; i < 2; i++) {

+	    q[i] = m->m[1][i] * r[0] - m->m[0][i] * r[1];

+	    u[i] = m->m[1][i] * m->m[0][1-i] - m->m[0][i] * m->m[1][1-i];

+	    t[i] = m->m[1][i] * crtc_x - m->m[0][i] * crtc_y;

+

+	    v[i] = m->m[1][i] * r[2] - m->m[2][i] * r[1];

+	    w[i] = m->m[1][i] * m->m[2][1-i] - m->m[2][i] * m->m[1][1-i];

+	    p[i] = m->m[1][i] - m->m[2][i] * crtc_y;

+	}

+

+	/* Find a way to compute f */

+	f = 0;

+	for (i = 0; i < 2; i++) {

+	    double a = w[i] * q[i] - u[i] * v[i];

+	    double b = w[i] * t[i] - u[i] * p[i];

+	    if (b != 0) {

+		f = a/b;

+		break;

+	    }

+	}

+

+	/* Solve for the resulting transform vector */

+	for (i = 0; i < 2; i++) {

+	    if (u[i])

+		d.v[1-i] = (t[i] * f - q[i]) / u[i];

+	    else if (w[1])

+		d.v[1-i] = (p[i] * f - v[i]) / w[i];

+	    else

+		d.v[1-i] = 0;

+	}

+	*new_pan_x = old_pan_x - floor (d.v[0] + 0.5);

+	*new_pan_y = old_pan_y - floor (d.v[1] + 0.5);

+    } else {

+	*new_pan_x = screen_x - crtc_x;

+	*new_pan_y = screen_y - crtc_y;

+    }

+}

+

+static void

+xf86RandR13Pan (xf86CrtcPtr crtc, int x, int y)

+{

+    int newX, newY;

+    int width, height;

+    Bool panned = FALSE;

+

+    if (crtc->version < 2)

+	return;

+

+    if (! crtc->enabled						||

+	(crtc->panningTotalArea.x2 <= crtc->panningTotalArea.x1	&&

+	 crtc->panningTotalArea.y2 <= crtc->panningTotalArea.y1))

+	return;

+

+    newX   = crtc->x;

+    newY   = crtc->y;

+    width  = crtc->mode.HDisplay;

+    height = crtc->mode.VDisplay;

+

+    if ((crtc->panningTrackingArea.x2 <= crtc->panningTrackingArea.x1 ||

+	 (x >= crtc->panningTrackingArea.x1 && x < crtc->panningTrackingArea.x2)) &&

+	(crtc->panningTrackingArea.y2 <= crtc->panningTrackingArea.y1 ||

+	 (y >= crtc->panningTrackingArea.y1 && y < crtc->panningTrackingArea.y2)))

+    {

+	struct pict_f_vector    c;

+

+	/*

+	 * Pre-clip the mouse position to the panning area so that we don't

+	 * push the crtc outside. This doesn't deal with changes to the

+	 * panning values, only mouse position changes.

+	 */

+	if (crtc->panningTotalArea.x2 > crtc->panningTotalArea.x1)

+	{

+	    if (x < crtc->panningTotalArea.x1)

+		x = crtc->panningTotalArea.x1;

+	    if (x >= crtc->panningTotalArea.x2)

+		x = crtc->panningTotalArea.x2 - 1;

+	}

+	if (crtc->panningTotalArea.y2 > crtc->panningTotalArea.y1)

+	{

+	    if (y < crtc->panningTotalArea.y1)

+		y = crtc->panningTotalArea.y1;

+	    if (y >= crtc->panningTotalArea.y2)

+		y = crtc->panningTotalArea.y2 - 1;

+	}

+

+	c.v[0] = x;

+	c.v[1] = y;

+	c.v[2] = 1.0;

+	if (crtc->transform_in_use) {

+	    pixman_f_transform_point(&crtc->f_framebuffer_to_crtc, &c);

+	} else {

+	    c.v[0] -= crtc->x;

+	    c.v[1] -= crtc->y;

+	}

+

+	if (crtc->panningTotalArea.x2 > crtc->panningTotalArea.x1) {

+	    if (c.v[0] < crtc->panningBorder[0]) {

+		c.v[0] = crtc->panningBorder[0];

+		panned = TRUE;

+	    }

+	    if (c.v[0] >= width - crtc->panningBorder[2]) {

+		c.v[0] = width - crtc->panningBorder[2] - 1;

+		panned = TRUE;

+	    }

+	}

+	if (crtc->panningTotalArea.y2 > crtc->panningTotalArea.y1) {

+	    if (c.v[1] < crtc->panningBorder[1]) {

+		c.v[1] = crtc->panningBorder[1];

+		panned = TRUE;

+	    }

+	    if (c.v[1] >= height - crtc->panningBorder[3]) {

+		c.v[1] = height - crtc->panningBorder[3] - 1;

+		panned = TRUE;

+	    }

+	}

+	if (panned)

+	    xf86ComputeCrtcPan (crtc->transform_in_use,

+				&crtc->f_framebuffer_to_crtc,

+				x, y, c.v[0], c.v[1],

+				newX, newY, &newX, &newY);

+    }

+

+    /*

+     * Ensure that the crtc is within the panning region.

+     *

+     * XXX This computation only works when we do not have a transform

+     * in use.

+     */

+    if (!crtc->transform_in_use)

+    {

+	/* Validate against [xy]1 after [xy]2, to be sure that results are > 0 for [xy]1 > 0 */

+	if (crtc->panningTotalArea.x2 > crtc->panningTotalArea.x1) {

+	    if (newX > crtc->panningTotalArea.x2 - width)

+		newX =  crtc->panningTotalArea.x2 - width;

+	    if (newX <  crtc->panningTotalArea.x1)

+		newX =  crtc->panningTotalArea.x1;

+	}

+	if (crtc->panningTotalArea.y2 > crtc->panningTotalArea.y1) {

+	    if (newY > crtc->panningTotalArea.y2 - height)

+		newY =  crtc->panningTotalArea.y2 - height;

+	    if (newY <  crtc->panningTotalArea.y1)

+		newY =  crtc->panningTotalArea.y1;

+	}

+    }

+    if (newX != crtc->x || newY != crtc->y)

+	xf86CrtcSetOrigin (crtc, newX, newY);

+}

+

+static Bool

+xf86RandR12GetInfo (ScreenPtr pScreen, Rotation *rotations)

+{

+    RRScreenSizePtr	    pSize;

+    ScrnInfoPtr		    scrp = XF86SCRNINFO(pScreen);

+    XF86RandRInfoPtr	    randrp = XF86RANDRINFO(pScreen);

+    DisplayModePtr	    mode;

+    int			    refresh0 = 60;

+    int			    maxX = 0, maxY = 0;

+

+    *rotations = randrp->supported_rotations;

+

+    if (randrp->virtualX == -1 || randrp->virtualY == -1)

+    {

+	randrp->virtualX = scrp->virtualX;

+	randrp->virtualY = scrp->virtualY;

+    }

+

+    /* Re-probe the outputs for new monitors or modes */

+    if (scrp->vtSema)

+    {

+	xf86ProbeOutputModes (scrp, 0, 0);

+	xf86SetScrnInfoModes (scrp);

+    }

+

+    for (mode = scrp->modes; ; mode = mode->next)

+    {

+	int refresh = xf86RandR12ModeRefresh (mode);

+	if (randrp->maxX == 0 || randrp->maxY == 0)

+	{

+		if (maxX < mode->HDisplay)

+			maxX = mode->HDisplay;

+		if (maxY < mode->VDisplay)

+			maxY = mode->VDisplay;

+	}

+	if (mode == scrp->modes)

+	    refresh0 = refresh;

+	pSize = RRRegisterSize (pScreen,

+				mode->HDisplay, mode->VDisplay,

+				randrp->mmWidth, randrp->mmHeight);

+	if (!pSize)

+	    return FALSE;

+	RRRegisterRate (pScreen, pSize, refresh);

+

+	if (xf86ModesEqual(mode, scrp->currentMode))

+	{

+	    RRSetCurrentConfig (pScreen, randrp->rotation, refresh, pSize);

+	}

+	if (mode->next == scrp->modes)

+	    break;

+    }

+

+    if (randrp->maxX == 0 || randrp->maxY == 0)

+    {

+	randrp->maxX = maxX;

+	randrp->maxY = maxY;

+    }

+

+    return TRUE;

+}

+

+static Bool

+xf86RandR12SetMode (ScreenPtr	    pScreen,

+		  DisplayModePtr    mode,

+		  Bool		    useVirtual,

+		  int		    mmWidth,

+		  int		    mmHeight)

+{

+    ScrnInfoPtr		scrp = XF86SCRNINFO(pScreen);

+    XF86RandRInfoPtr	randrp = XF86RANDRINFO(pScreen);

+    int			oldWidth = pScreen->width;

+    int			oldHeight = pScreen->height;

+    int			oldmmWidth = pScreen->mmWidth;

+    int			oldmmHeight = pScreen->mmHeight;

+    WindowPtr		pRoot = WindowTable[pScreen->myNum];

+    DisplayModePtr      currentMode = NULL;

+    Bool 		ret = TRUE;

+    PixmapPtr 		pspix = NULL;

+

+    if (pRoot)

+	(*scrp->EnableDisableFBAccess) (pScreen->myNum, FALSE);

+    if (useVirtual)

+    {

+	scrp->virtualX = randrp->virtualX;

+	scrp->virtualY = randrp->virtualY;

+    }

+    else

+    {

+	scrp->virtualX = mode->HDisplay;

+	scrp->virtualY = mode->VDisplay;

+    }

+

+    if(randrp->rotation & (RR_Rotate_90 | RR_Rotate_270))

+    {

+	/* If the screen is rotated 90 or 270 degrees, swap the sizes. */

+	pScreen->width = scrp->virtualY;

+	pScreen->height = scrp->virtualX;

+	pScreen->mmWidth = mmHeight;

+	pScreen->mmHeight = mmWidth;

+    }

+    else

+    {

+	pScreen->width = scrp->virtualX;

+	pScreen->height = scrp->virtualY;

+	pScreen->mmWidth = mmWidth;

+	pScreen->mmHeight = mmHeight;

+    }

+    if (scrp->currentMode == mode) {

+        /* Save current mode */

+        currentMode = scrp->currentMode;

+        /* Reset, just so we ensure the drivers SwitchMode is called */

+        scrp->currentMode = NULL;

+    }

+    /*

+     * We know that if the driver failed to SwitchMode to the rotated

+     * version, then it should revert back to it's prior mode.

+     */

+    if (!xf86SwitchMode (pScreen, mode))

+    {

+        ret = FALSE;

+	scrp->virtualX = pScreen->width = oldWidth;

+	scrp->virtualY = pScreen->height = oldHeight;

+	pScreen->mmWidth = oldmmWidth;

+	pScreen->mmHeight = oldmmHeight;

+        scrp->currentMode = currentMode;

+    }

+    /*

+     * Get the new Screen pixmap ptr as SwitchMode might have called

+     * ModifyPixmapHeader and xf86EnableDisableFBAccess will put it back...

+     * Unfortunately.

+     */

+    pspix = (*pScreen->GetScreenPixmap) (pScreen);

+    if (pspix->devPrivate.ptr)

+       scrp->pixmapPrivate = pspix->devPrivate;

+

+    /*

+     * Make sure the layout is correct

+     */

+    xf86ReconfigureLayout();

+

+    /*

+     * Make sure the whole screen is visible

+     */

+    xf86SetViewport (pScreen, pScreen->width, pScreen->height);

+    xf86SetViewport (pScreen, 0, 0);

+    if (pRoot)

+	(*scrp->EnableDisableFBAccess) (pScreen->myNum, TRUE);

+    return ret;

+}

+

+Bool

+xf86RandR12SetConfig (ScreenPtr		pScreen,

+		    Rotation		rotation,

+		    int			rate,

+		    RRScreenSizePtr	pSize)

+{

+    ScrnInfoPtr		scrp = XF86SCRNINFO(pScreen);

+    XF86RandRInfoPtr	randrp = XF86RANDRINFO(pScreen);

+    DisplayModePtr	mode;

+    int			px, py;

+    Bool		useVirtual = FALSE;

+    int			maxX = 0, maxY = 0;

+    Rotation		oldRotation = randrp->rotation;

+

+    randrp->rotation = rotation;

+

+    if (randrp->virtualX == -1 || randrp->virtualY == -1)

+    {

+	randrp->virtualX = scrp->virtualX;

+	randrp->virtualY = scrp->virtualY;

+    }

+

+    miPointerGetPosition (inputInfo.pointer, &px, &py);

+    for (mode = scrp->modes; ; mode = mode->next)

+    {

+	if (randrp->maxX == 0 || randrp->maxY == 0)

+	{

+		if (maxX < mode->HDisplay)

+			maxX = mode->HDisplay;

+		if (maxY < mode->VDisplay)

+			maxY = mode->VDisplay;

+	}

+	if (mode->HDisplay == pSize->width &&

+	    mode->VDisplay == pSize->height &&

+	    (rate == 0 || xf86RandR12ModeRefresh (mode) == rate))

+	    break;

+	if (mode->next == scrp->modes)

+	{

+	    if (pSize->width == randrp->virtualX &&

+		pSize->height == randrp->virtualY)

+	    {

+		mode = scrp->modes;

+		useVirtual = TRUE;

+		break;

+	    }

+    	    if (randrp->maxX == 0 || randrp->maxY == 0)

+    	    {

+		randrp->maxX = maxX;

+		randrp->maxY = maxY;

+    	    }

+	    return FALSE;

+	}

+    }

+

+    if (randrp->maxX == 0 || randrp->maxY == 0)

+    {

+	randrp->maxX = maxX;

+	randrp->maxY = maxY;

+    }

+

+    if (!xf86RandR12SetMode (pScreen, mode, useVirtual, pSize->mmWidth,

+			   pSize->mmHeight)) {

+        randrp->rotation = oldRotation;

+	return FALSE;

+    }

+

+    /*

+     * Move the cursor back where it belongs; SwitchMode repositions it

+     */

+    if (pScreen == miPointerGetScreen(inputInfo.pointer))

+    {

+        px = (px >= pScreen->width ? (pScreen->width - 1) : px);

+        py = (py >= pScreen->height ? (pScreen->height - 1) : py);

+

+	xf86SetViewport(pScreen, px, py);

+

+	(*pScreen->SetCursorPosition) (inputInfo.pointer, pScreen, px, py, FALSE);

+    }

+

+    return TRUE;

+}

+

+static Bool

+xf86RandR12ScreenSetSize (ScreenPtr	pScreen,

+			CARD16		width,

+			CARD16		height,

+			CARD32		mmWidth,

+			CARD32		mmHeight)

+{

+    XF86RandRInfoPtr	randrp = XF86RANDRINFO(pScreen);

+    ScrnInfoPtr		pScrn = XF86SCRNINFO(pScreen);

+    xf86CrtcConfigPtr	config = XF86_CRTC_CONFIG_PTR(pScrn);

+    WindowPtr		pRoot = WindowTable[pScreen->myNum];

+    PixmapPtr		pScrnPix = (*pScreen->GetScreenPixmap)(pScreen);

+    Bool		ret = FALSE;

+    int                 c;

+

+#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)

+    if (xf86RandR12Key) {

+#endif

+        if (randrp->virtualX == -1 || randrp->virtualY == -1)

+        {

+	    randrp->virtualX = pScrn->virtualX;

+	    randrp->virtualY = pScrn->virtualY;

+        }

+#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)

+    }

+#endif

+    if (pRoot && pScrn->vtSema)

+	(*pScrn->EnableDisableFBAccess) (pScreen->myNum, FALSE);

+

+    /* Let the driver update virtualX and virtualY */

+    if (!(*config->funcs->resize)(pScrn, width, height))

+	goto finish;

+

+    ret = TRUE;

+    /* Update panning information */

+    for (c = 0; c < config->num_crtc; c++) {

+	xf86CrtcPtr crtc = config->crtc[c];

+	if (crtc->panningTotalArea.x2 > crtc->panningTotalArea.x1 ||

+	    crtc->panningTotalArea.y2 > crtc->panningTotalArea.y1) {

+	    if (crtc->panningTotalArea.x2 > crtc->panningTrackingArea.x1)

+		crtc->panningTotalArea.x2 += width  - pScreen->width;

+	    if (crtc->panningTotalArea.y2 > crtc->panningTrackingArea.y1)

+		crtc->panningTotalArea.y2 += height - pScreen->height;

+	    if (crtc->panningTrackingArea.x2 > crtc->panningTrackingArea.x1)

+		crtc->panningTrackingArea.x2 += width  - pScreen->width;

+	    if (crtc->panningTrackingArea.y2 > crtc->panningTrackingArea.y1)

+		crtc->panningTrackingArea.y2 += height - pScreen->height;

+	    xf86RandR13VerifyPanningArea (crtc, width, height);

+	    xf86RandR13Pan (crtc, randrp->pointerX, randrp->pointerY);

+	}

+    }

+

+    pScreen->width = pScrnPix->drawable.width = width;

+    pScreen->height = pScrnPix->drawable.height = height;

+    randrp->mmWidth = pScreen->mmWidth = mmWidth;

+    randrp->mmHeight = pScreen->mmHeight = mmHeight;

+

+    xf86SetViewport (pScreen, pScreen->width-1, pScreen->height-1);

+    xf86SetViewport (pScreen, 0, 0);

+

+finish:

+    if (pRoot && pScrn->vtSema)

+	(*pScrn->EnableDisableFBAccess) (pScreen->myNum, TRUE);

+#if RANDR_12_INTERFACE

+    if (xf86RandR12Key && WindowTable[pScreen->myNum] && ret)

+	RRScreenSizeNotify (pScreen);

+#endif

+    return ret;

+}

+

+Rotation

+xf86RandR12GetRotation(ScreenPtr pScreen)

+{

+    XF86RandRInfoPtr	    randrp = XF86RANDRINFO(pScreen);

+

+    return randrp->rotation;

+}

+

+Bool

+xf86RandR12CreateScreenResources (ScreenPtr pScreen)

+{

+    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];

+    xf86CrtcConfigPtr   config;

+    XF86RandRInfoPtr	randrp;

+    int			c;

+    int			width, height;

+    int			mmWidth, mmHeight;

+#ifdef PANORAMIX

+    /* XXX disable RandR when using Xinerama */

+    if (!noPanoramiXExtension)

+	return TRUE;

+#endif

+

+    config = XF86_CRTC_CONFIG_PTR(pScrn);

+    randrp = XF86RANDRINFO(pScreen);

+    /*

+     * Compute size of screen

+     */

+    width = 0; height = 0;

+    for (c = 0; c < config->num_crtc; c++)

+    {

+	xf86CrtcPtr crtc = config->crtc[c];

+	int	    crtc_width = crtc->x + xf86ModeWidth (&crtc->mode, crtc->rotation);

+	int	    crtc_height = crtc->y + xf86ModeHeight (&crtc->mode, crtc->rotation);

+	

+	if (crtc->enabled) {

+	    if (crtc_width > width)

+		width = crtc_width;

+	    if (crtc_height > height)

+		height = crtc_height;

+	    if (crtc->panningTotalArea.x2 > width)

+		width = crtc->panningTotalArea.x2;

+	    if (crtc->panningTotalArea.y2 > height)

+		height = crtc->panningTotalArea.y2;

+	}

+    }

+    

+    if (width && height)

+    {

+	/*

+	 * Compute physical size of screen

+	 */

+	if (monitorResolution) 

+	{

+	    mmWidth = width * 25.4 / monitorResolution;

+	    mmHeight = height * 25.4 / monitorResolution;

+	}

+	else

+	{

+	    xf86OutputPtr   output = xf86CompatOutput(pScrn);

+

+	    if (output &&

+		output->conf_monitor &&

+		(output->conf_monitor->mon_width  > 0 &&

+		 output->conf_monitor->mon_height > 0))

+	    {

+		/*

+		 * Prefer user configured DisplaySize

+		 */

+		mmWidth = output->conf_monitor->mon_width;

+		mmHeight = output->conf_monitor->mon_height;

+	    }

+	    else

+	    {

+		/*

+		 * Otherwise, just set the screen to DEFAULT_DPI

+		 */

+		mmWidth = width * 25.4 / DEFAULT_DPI;

+		mmHeight = height * 25.4 / DEFAULT_DPI;

+	    }

+	}

+	xf86DrvMsg(pScrn->scrnIndex, X_INFO,

+		   "Setting screen physical size to %d x %d\n",

+		   mmWidth, mmHeight);

+	/*

+	 * This is the initial setting of the screen size.

+	 * We have to pre-set it here, otherwise panning would be adapted

+	 * to the new screen size.

+	 */

+	pScreen->width  = width;

+	pScreen->height = height;

+	xf86RandR12ScreenSetSize (pScreen,

+				  width,

+				  height,

+				  mmWidth,

+				  mmHeight);

+    }

+

+#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)

+    if (xf86RandR12Key == NULL)

+	return TRUE;

+#endif

+

+    if (randrp->virtualX == -1 || randrp->virtualY == -1)

+    {

+	randrp->virtualX = pScrn->virtualX;

+	randrp->virtualY = pScrn->virtualY;

+    }

+    xf86CrtcSetScreenSubpixelOrder (pScreen);

+#if RANDR_12_INTERFACE

+    if (xf86RandR12CreateScreenResources12 (pScreen))

+	return TRUE;

+#endif

+    return TRUE;

+}

+

+

+Bool

+xf86RandR12Init (ScreenPtr pScreen)

+{

+    rrScrPrivPtr	rp;

+    XF86RandRInfoPtr	randrp;

+

+#ifdef PANORAMIX

+    /* XXX disable RandR when using Xinerama */

+    if (!noPanoramiXExtension)

+    {

+        if (xf86NumScreens == 1)

+            noPanoramiXExtension = TRUE;

+        else

+            return TRUE;

+    }

+#endif

+

+    if (xf86RandR12Generation != serverGeneration)

+	xf86RandR12Generation = serverGeneration;

+

+#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)

+    xf86RandR12Key = &xf86RandR12KeyIndex;

+#else

+    xf86RandR12Index = AllocateScreenPrivateIndex();

+#endif

+

+    randrp = malloc(sizeof (XF86RandRInfoRec));

+    if (!randrp)

+	return FALSE;

+

+    if (!RRScreenInit(pScreen))

+    {

+	free(randrp);

+	return FALSE;

+    }

+    rp = rrGetScrPriv(pScreen);

+    rp->rrGetInfo = xf86RandR12GetInfo;

+    rp->rrSetConfig = xf86RandR12SetConfig;

+

+    randrp->virtualX = -1;

+    randrp->virtualY = -1;

+    randrp->mmWidth = pScreen->mmWidth;

+    randrp->mmHeight = pScreen->mmHeight;

+

+    randrp->rotation = RR_Rotate_0; /* initial rotated mode */

+

+    randrp->supported_rotations = RR_Rotate_0;

+

+    randrp->maxX = randrp->maxY = 0;

+

+#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)

+    dixSetPrivate(&pScreen->devPrivates, xf86RandR12Key, randrp);

+#else

+    pScreen->devPrivates[xf86RandR12Index].ptr = randrp;

+#endif

+

+#if RANDR_12_INTERFACE

+    if (!xf86RandR12Init12 (pScreen))

+	return FALSE;

+#endif

+    return TRUE;

+}

+

+void

+xf86RandR12SetRotations (ScreenPtr pScreen, Rotation rotations)

+{

+    XF86RandRInfoPtr	randrp;

+#if RANDR_12_INTERFACE

+    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];

+    int			c;

+    xf86CrtcConfigPtr   config = XF86_CRTC_CONFIG_PTR(pScrn);

+#endif

+

+#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)

+    if (xf86RandR12Key == NULL)

+	return;

+#endif

+

+    randrp = XF86RANDRINFO(pScreen);

+#if RANDR_12_INTERFACE

+    for (c = 0; c < config->num_crtc; c++) {

+	xf86CrtcPtr    crtc = config->crtc[c];

+

+	RRCrtcSetRotations (crtc->randr_crtc, rotations);

+    }

+#endif

+    randrp->supported_rotations = rotations;

+}

+

+void

+xf86RandR12SetTransformSupport (ScreenPtr pScreen, Bool transforms)

+{

+    XF86RandRInfoPtr	randrp;

+#if RANDR_13_INTERFACE

+    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];

+    int			c;

+    xf86CrtcConfigPtr   config = XF86_CRTC_CONFIG_PTR(pScrn);

+#endif

+

+#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)

+    if (xf86RandR12Key == NULL)

+	return;

+#endif

+

+    randrp = XF86RANDRINFO(pScreen);

+#if RANDR_13_INTERFACE

+    for (c = 0; c < config->num_crtc; c++) {

+	xf86CrtcPtr    crtc = config->crtc[c];

+

+	RRCrtcSetTransformSupport (crtc->randr_crtc, transforms);

+    }

+#endif

+}

+

+void

+xf86RandR12GetOriginalVirtualSize(ScrnInfoPtr pScrn, int *x, int *y)

+{

+    ScreenPtr pScreen = screenInfo.screens[pScrn->scrnIndex];

+

+    if (xf86RandR12Generation != serverGeneration ||

+	XF86RANDRINFO(pScreen)->virtualX == -1)

+    {

+	*x = pScrn->virtualX;

+	*y = pScrn->virtualY;

+    } else {

+	XF86RandRInfoPtr randrp = XF86RANDRINFO(pScreen);

+

+	*x = randrp->virtualX;

+	*y = randrp->virtualY;

+    }

+}

+

+#if RANDR_12_INTERFACE

+

+#define FLAG_BITS (RR_HSyncPositive | \

+		   RR_HSyncNegative | \

+		   RR_VSyncPositive | \

+		   RR_VSyncNegative | \

+		   RR_Interlace | \

+		   RR_DoubleScan | \

+		   RR_CSync | \

+		   RR_CSyncPositive | \

+		   RR_CSyncNegative | \

+		   RR_HSkewPresent | \

+		   RR_BCast | \

+		   RR_PixelMultiplex | \

+		   RR_DoubleClock | \

+		   RR_ClockDivideBy2)

+

+static Bool

+xf86RandRModeMatches (RRModePtr		randr_mode,

+		      DisplayModePtr	mode)

+{

+#if 0

+    if (match_name)

+    {

+	/* check for same name */

+	int	len = strlen (mode->name);

+	if (randr_mode->mode.nameLength != len)			return FALSE;

+	if (memcmp (randr_mode->name, mode->name, len) != 0)	return FALSE;

+    }

+#endif

+    

+    /* check for same timings */

+    if (randr_mode->mode.dotClock / 1000 != mode->Clock)    return FALSE;

+    if (randr_mode->mode.width        != mode->HDisplay)    return FALSE;

+    if (randr_mode->mode.hSyncStart   != mode->HSyncStart)  return FALSE;

+    if (randr_mode->mode.hSyncEnd     != mode->HSyncEnd)    return FALSE;

+    if (randr_mode->mode.hTotal       != mode->HTotal)	    return FALSE;

+    if (randr_mode->mode.hSkew        != mode->HSkew)	    return FALSE;

+    if (randr_mode->mode.height       != mode->VDisplay)    return FALSE;

+    if (randr_mode->mode.vSyncStart   != mode->VSyncStart)  return FALSE;

+    if (randr_mode->mode.vSyncEnd     != mode->VSyncEnd)    return FALSE;

+    if (randr_mode->mode.vTotal       != mode->VTotal)	    return FALSE;

+    

+    /* check for same flags (using only the XF86 valid flag bits) */

+    if ((randr_mode->mode.modeFlags & FLAG_BITS) != (mode->Flags & FLAG_BITS))

+	return FALSE;

+    

+    /* everything matches */

+    return TRUE;

+}

+

+static Bool

+xf86RandR12CrtcNotify (RRCrtcPtr	randr_crtc)

+{

+    ScreenPtr		pScreen = randr_crtc->pScreen;

+    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];

+    xf86CrtcConfigPtr   config = XF86_CRTC_CONFIG_PTR(pScrn);

+    RRModePtr		randr_mode = NULL;

+    int			x;

+    int			y;

+    Rotation		rotation;

+    int			numOutputs;

+    RROutputPtr		*randr_outputs;

+    RROutputPtr		randr_output;

+    xf86CrtcPtr		crtc = randr_crtc->devPrivate;

+    xf86OutputPtr	output;

+    int			i, j;

+    DisplayModePtr	mode = &crtc->mode;

+    Bool		ret;

+

+    randr_outputs = malloc(config->num_output * sizeof (RROutputPtr));

+    if (!randr_outputs)

+	return FALSE;

+    x = crtc->x;

+    y = crtc->y;

+    rotation = crtc->rotation;

+    numOutputs = 0;

+    randr_mode = NULL;

+    for (i = 0; i < config->num_output; i++)

+    {

+	output = config->output[i];

+	if (output->crtc == crtc)

+	{

+	    randr_output = output->randr_output;

+	    randr_outputs[numOutputs++] = randr_output;

+	    /*

+	     * We make copies of modes, so pointer equality 

+	     * isn't sufficient

+	     */

+	    for (j = 0; j < randr_output->numModes + randr_output->numUserModes; j++)

+	    {

+		RRModePtr   m = (j < randr_output->numModes ?

+				 randr_output->modes[j] :

+				 randr_output->userModes[j-randr_output->numModes]);

+					 

+		if (xf86RandRModeMatches (m, mode))

+		{

+		    randr_mode = m;

+		    break;

+		}

+	    }

+	}

+    }

+    ret = RRCrtcNotify (randr_crtc, randr_mode, x, y,

+			rotation, 

+			crtc->transformPresent ? &crtc->transform : NULL,

+			numOutputs, randr_outputs);

+    free(randr_outputs);

+    return ret;

+}

+

+/*

+ * Convert a RandR mode to a DisplayMode

+ */

+static void

+xf86RandRModeConvert (ScrnInfoPtr	scrn,

+		      RRModePtr		randr_mode,

+		      DisplayModePtr	mode)

+{

+    memset(mode, 0, sizeof(DisplayModeRec));

+    mode->status = MODE_OK;

+

+    mode->Clock = randr_mode->mode.dotClock / 1000;

+    

+    mode->HDisplay = randr_mode->mode.width;

+    mode->HSyncStart = randr_mode->mode.hSyncStart;

+    mode->HSyncEnd = randr_mode->mode.hSyncEnd;

+    mode->HTotal = randr_mode->mode.hTotal;

+    mode->HSkew = randr_mode->mode.hSkew;

+    

+    mode->VDisplay = randr_mode->mode.height;

+    mode->VSyncStart = randr_mode->mode.vSyncStart;

+    mode->VSyncEnd = randr_mode->mode.vSyncEnd;

+    mode->VTotal = randr_mode->mode.vTotal;

+    mode->VScan = 0;

+

+    mode->Flags = randr_mode->mode.modeFlags & FLAG_BITS;

+

+    xf86SetModeCrtc (mode, scrn->adjustFlags);

+}

+

+static Bool

+xf86RandR12CrtcSet (ScreenPtr	    pScreen,

+		    RRCrtcPtr	    randr_crtc,

+		    RRModePtr	    randr_mode,

+		    int		    x,

+		    int		    y,

+		    Rotation	    rotation,

+		    int		    num_randr_outputs,

+		    RROutputPtr	    *randr_outputs)

+{

+    XF86RandRInfoPtr	randrp = XF86RANDRINFO(pScreen);

+    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];

+    xf86CrtcConfigPtr   config = XF86_CRTC_CONFIG_PTR(pScrn);

+    xf86CrtcPtr		crtc = randr_crtc->devPrivate;

+    RRTransformPtr	transform;

+    Bool		changed = FALSE;

+    int			o, ro;

+    xf86CrtcPtr		*save_crtcs;

+    Bool		save_enabled = crtc->enabled;

+

+    if (!crtc->scrn->vtSema)

+	return FALSE;

+

+    save_crtcs = malloc(config->num_output * sizeof (xf86CrtcPtr));

+    if ((randr_mode != NULL) != crtc->enabled)

+	changed = TRUE;

+    else if (randr_mode && !xf86RandRModeMatches (randr_mode, &crtc->mode))

+	changed = TRUE;

+    

+    if (rotation != crtc->rotation)

+	changed = TRUE;

+

+    transform = RRCrtcGetTransform (randr_crtc);

+    if ((transform != NULL) != crtc->transformPresent)

+	changed = TRUE;

+    else if (transform && memcmp (&transform->transform, &crtc->transform.transform,

+				  sizeof (transform->transform)) != 0)

+	changed = TRUE;

+

+    if (x != crtc->x || y != crtc->y)

+	changed = TRUE;

+    for (o = 0; o < config->num_output; o++) 

+    {

+	xf86OutputPtr  output = config->output[o];

+	xf86CrtcPtr    new_crtc;

+

+	save_crtcs[o] = output->crtc;

+	

+	if (output->crtc == crtc)

+	    new_crtc = NULL;

+	else

+	    new_crtc = output->crtc;

+	for (ro = 0; ro < num_randr_outputs; ro++) 

+	    if (output->randr_output == randr_outputs[ro])

+	    {

+		new_crtc = crtc;

+		break;

+	    }

+	if (new_crtc != output->crtc)

+	{

+	    changed = TRUE;

+	    output->crtc = new_crtc;

+	}

+    }

+    for (ro = 0; ro < num_randr_outputs; ro++) 

+        if (randr_outputs[ro]->pendingProperties)

+	    changed = TRUE;

+

+    /* XXX need device-independent mode setting code through an API */

+    if (changed)

+    {

+	crtc->enabled = randr_mode != NULL;

+

+	if (randr_mode)

+	{

+	    DisplayModeRec  mode;

+	    RRTransformPtr  transform = RRCrtcGetTransform (randr_crtc);

+

+	    xf86RandRModeConvert (pScrn, randr_mode, &mode);

+	    if (!xf86CrtcSetModeTransform (crtc, &mode, rotation, transform, x, y))

+	    {

+		crtc->enabled = save_enabled;

+		for (o = 0; o < config->num_output; o++)

+		{

+		    xf86OutputPtr	output = config->output[o];

+		    output->crtc = save_crtcs[o];

+		}

+		free(save_crtcs);

+		return FALSE;

+	    }

+	    xf86RandR13VerifyPanningArea (crtc, pScreen->width, pScreen->height);

+	    xf86RandR13Pan (crtc, randrp->pointerX, randrp->pointerY);

+	    /*

+	     * Save the last successful setting for EnterVT

+	     */

+	    crtc->desiredMode = mode;

+	    crtc->desiredRotation = rotation;

+	    if (transform) {

+		crtc->desiredTransform = *transform;

+		crtc->desiredTransformPresent = TRUE;

+	    } else

+		crtc->desiredTransformPresent = FALSE;

+

+	    crtc->desiredX = x;

+	    crtc->desiredY = y;

+	}

+	xf86DisableUnusedFunctions (pScrn);

+    }

+    free(save_crtcs);

+    return xf86RandR12CrtcNotify (randr_crtc);

+}

+

+static Bool

+xf86RandR12CrtcSetGamma (ScreenPtr    pScreen,

+			 RRCrtcPtr    randr_crtc)

+{

+    xf86CrtcPtr		crtc = randr_crtc->devPrivate;

+

+    if (crtc->funcs->gamma_set == NULL)

+	return FALSE;

+

+    if (!crtc->scrn->vtSema)

+	return TRUE;

+

+    /* Realloc local gamma if needed. */

+    if (randr_crtc->gammaSize != crtc->gamma_size) {

+        CARD16 *tmp_ptr;

+        tmp_ptr = realloc(crtc->gamma_red, 3 * crtc->gamma_size * sizeof (CARD16));

+        if (!tmp_ptr)

+            return FALSE;

+        crtc->gamma_red = tmp_ptr;

+        crtc->gamma_green = crtc->gamma_red + crtc->gamma_size;

+        crtc->gamma_blue = crtc->gamma_green + crtc->gamma_size;

+    }

+

+    crtc->gamma_size = randr_crtc->gammaSize;

+    memcpy (crtc->gamma_red, randr_crtc->gammaRed, crtc->gamma_size * sizeof (CARD16));

+    memcpy (crtc->gamma_green, randr_crtc->gammaGreen, crtc->gamma_size * sizeof (CARD16));

+    memcpy (crtc->gamma_blue, randr_crtc->gammaBlue, crtc->gamma_size * sizeof (CARD16));

+

+    /* Only set it when the crtc is actually running.

+     * Otherwise it will be set when it's activated.

+     */

+    if (crtc->active)

+	crtc->funcs->gamma_set(crtc, crtc->gamma_red, crtc->gamma_green,

+						crtc->gamma_blue, crtc->gamma_size);

+

+    return TRUE;

+}

+

+static Bool

+xf86RandR12CrtcGetGamma (ScreenPtr    pScreen,

+			 RRCrtcPtr    randr_crtc)

+{

+    xf86CrtcPtr crtc = randr_crtc->devPrivate;

+

+    if (!crtc->gamma_size)

+        return FALSE;

+

+    if (!crtc->gamma_red || !crtc->gamma_green || !crtc->gamma_blue)

+        return FALSE;

+

+    /* Realloc randr gamma if needed. */

+    if (randr_crtc->gammaSize != crtc->gamma_size) {

+        CARD16 *tmp_ptr;

+        tmp_ptr = realloc(randr_crtc->gammaRed, 3 * crtc->gamma_size * sizeof (CARD16));

+        if (!tmp_ptr)

+            return FALSE;

+        randr_crtc->gammaRed = tmp_ptr;

+        randr_crtc->gammaGreen = randr_crtc->gammaRed + crtc->gamma_size;

+        randr_crtc->gammaBlue = randr_crtc->gammaGreen + crtc->gamma_size;

+    }

+    randr_crtc->gammaSize = crtc->gamma_size;

+    memcpy (randr_crtc->gammaRed, crtc->gamma_red, crtc->gamma_size * sizeof (CARD16));

+    memcpy (randr_crtc->gammaGreen, crtc->gamma_green, crtc->gamma_size * sizeof (CARD16));

+    memcpy (randr_crtc->gammaBlue, crtc->gamma_blue, crtc->gamma_size * sizeof (CARD16));

+

+    return TRUE;

+}

+

+static Bool

+xf86RandR12OutputSetProperty (ScreenPtr pScreen,

+			      RROutputPtr randr_output,

+			      Atom property,

+			      RRPropertyValuePtr value)

+{

+    xf86OutputPtr output = randr_output->devPrivate;

+

+    /* If we don't have any property handler, then we don't care what the

+     * user is setting properties to.

+     */

+    if (output->funcs->set_property == NULL)

+	return TRUE;

+

+    /*

+     * This function gets called even when vtSema is FALSE, as

+     * drivers will need to remember the correct value to apply

+     * when the VT switch occurs

+     */

+    return output->funcs->set_property(output, property, value);

+}

+

+static Bool

+xf86RandR13OutputGetProperty (ScreenPtr pScreen,

+			      RROutputPtr randr_output,

+			      Atom property)

+{

+    xf86OutputPtr output = randr_output->devPrivate;

+

+    if (output->funcs->get_property == NULL)

+	return TRUE;

+

+    /* Should be safe even w/o vtSema */

+    return output->funcs->get_property(output, property);

+}

+

+static Bool

+xf86RandR12OutputValidateMode (ScreenPtr    pScreen,

+			       RROutputPtr  randr_output,

+			       RRModePtr    randr_mode)

+{

+    ScrnInfoPtr	    pScrn = xf86Screens[pScreen->myNum];

+    xf86OutputPtr   output = randr_output->devPrivate;

+    DisplayModeRec  mode;

+

+    xf86RandRModeConvert (pScrn, randr_mode, &mode);

+    /*

+     * This function may be called when vtSema is FALSE, so

+     * the underlying function must either avoid touching the hardware

+     * or return FALSE when vtSema is FALSE

+     */

+    if (output->funcs->mode_valid (output, &mode) != MODE_OK)

+	return FALSE;

+    return TRUE;

+}

+

+static void

+xf86RandR12ModeDestroy (ScreenPtr pScreen, RRModePtr randr_mode)

+{

+}

+

+/**

+ * Given a list of xf86 modes and a RandR Output object, construct

+ * RandR modes and assign them to the output

+ */

+static Bool

+xf86RROutputSetModes (RROutputPtr randr_output, DisplayModePtr modes)

+{

+    DisplayModePtr  mode;

+    RRModePtr	    *rrmodes = NULL;

+    int		    nmode = 0;

+    int		    npreferred = 0;

+    Bool	    ret = TRUE;

+    int		    pref;

+

+    for (mode = modes; mode; mode = mode->next)

+	nmode++;

+

+    if (nmode) {

+	rrmodes = malloc(nmode * sizeof (RRModePtr));

+	

+	if (!rrmodes)

+	    return FALSE;

+	nmode = 0;

+

+	for (pref = 1; pref >= 0; pref--) {

+	    for (mode = modes; mode; mode = mode->next) {

+		if ((pref != 0) == ((mode->type & M_T_PREFERRED) != 0)) {

+		    xRRModeInfo		modeInfo;

+		    RRModePtr		rrmode;

+		    

+		    modeInfo.nameLength = strlen (mode->name);

+		    modeInfo.width = mode->HDisplay;

+		    modeInfo.dotClock = mode->Clock * 1000;

+		    modeInfo.hSyncStart = mode->HSyncStart;

+		    modeInfo.hSyncEnd = mode->HSyncEnd;

+		    modeInfo.hTotal = mode->HTotal;

+		    modeInfo.hSkew = mode->HSkew;

+

+		    modeInfo.height = mode->VDisplay;

+		    modeInfo.vSyncStart = mode->VSyncStart;

+		    modeInfo.vSyncEnd = mode->VSyncEnd;

+		    modeInfo.vTotal = mode->VTotal;

+		    modeInfo.modeFlags = mode->Flags;

+

+		    rrmode = RRModeGet (&modeInfo, mode->name);

+		    if (rrmode) {

+			rrmodes[nmode++] = rrmode;

+			npreferred += pref;

+		    }

+		}

+	    }

+	}

+    }

+    

+    ret = RROutputSetModes (randr_output, rrmodes, nmode, npreferred);

+    free(rrmodes);

+    return ret;

+}

+

+/*

+ * Mirror the current mode configuration to RandR

+ */

+static Bool

+xf86RandR12SetInfo12 (ScreenPtr pScreen)

+{

+    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];

+    xf86CrtcConfigPtr   config = XF86_CRTC_CONFIG_PTR(pScrn);

+    RROutputPtr		*clones;

+    RRCrtcPtr		*crtcs;

+    int			ncrtc;

+    int			o, c, l;

+    RRCrtcPtr		randr_crtc;

+    int			nclone;

+    

+    clones = malloc(config->num_output * sizeof (RROutputPtr));

+    crtcs = malloc(config->num_crtc * sizeof (RRCrtcPtr));

+    for (o = 0; o < config->num_output; o++)

+    {

+	xf86OutputPtr	output = config->output[o];

+	

+	ncrtc = 0;

+	for (c = 0; c < config->num_crtc; c++)

+	    if (output->possible_crtcs & (1 << c))

+		crtcs[ncrtc++] = config->crtc[c]->randr_crtc;

+

+	if (output->crtc)

+	    randr_crtc = output->crtc->randr_crtc;

+	else

+	    randr_crtc = NULL;

+

+	if (!RROutputSetCrtcs (output->randr_output, crtcs, ncrtc))

+	{

+	    free(crtcs);

+	    free(clones);

+	    return FALSE;

+	}

+

+	RROutputSetPhysicalSize(output->randr_output, 

+				output->mm_width,

+				output->mm_height);

+	xf86RROutputSetModes (output->randr_output, output->probed_modes);

+

+	switch (output->status) {

+	case XF86OutputStatusConnected:

+	    RROutputSetConnection (output->randr_output, RR_Connected);

+	    break;

+	case XF86OutputStatusDisconnected:

+	    RROutputSetConnection (output->randr_output, RR_Disconnected);

+	    break;

+	case XF86OutputStatusUnknown:

+	    RROutputSetConnection (output->randr_output, RR_UnknownConnection);

+	    break;

+	}

+

+	RROutputSetSubpixelOrder (output->randr_output, output->subpixel_order);

+

+	/*

+	 * Valid clones

+	 */

+	nclone = 0;

+	for (l = 0; l < config->num_output; l++)

+	{

+	    xf86OutputPtr	    clone = config->output[l];

+	    

+	    if (l != o && (output->possible_clones & (1 << l)))

+		clones[nclone++] = clone->randr_output;

+	}

+	if (!RROutputSetClones (output->randr_output, clones, nclone))

+	{

+	    free(crtcs);

+	    free(clones);

+	    return FALSE;

+	}

+    }

+    free(crtcs);

+    free(clones);

+    return TRUE;

+}

+

+

+

+/*

+ * Query the hardware for the current state, then mirror

+ * that to RandR

+ */

+static Bool

+xf86RandR12GetInfo12 (ScreenPtr pScreen, Rotation *rotations)

+{

+    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];

+

+    if (!pScrn->vtSema)

+	return TRUE;

+    xf86ProbeOutputModes (pScrn, 0, 0);

+    xf86SetScrnInfoModes (pScrn);

+    return xf86RandR12SetInfo12 (pScreen);

+}

+

+static Bool

+xf86RandR12CreateObjects12 (ScreenPtr pScreen)

+{

+    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];

+    xf86CrtcConfigPtr   config = XF86_CRTC_CONFIG_PTR(pScrn);

+    int			c;

+    int			o;

+    

+    if (!RRInit ())

+	return FALSE;

+

+    /*

+     * Configure crtcs

+     */

+    for (c = 0; c < config->num_crtc; c++)

+    {

+	xf86CrtcPtr    crtc = config->crtc[c];

+	

+	crtc->randr_crtc = RRCrtcCreate (pScreen, crtc);

+	RRCrtcGammaSetSize (crtc->randr_crtc, 256);

+    }

+    /*

+     * Configure outputs

+     */

+    for (o = 0; o < config->num_output; o++)

+    {

+	xf86OutputPtr	output = config->output[o];

+

+	output->randr_output = RROutputCreate (pScreen, output->name, 

+					       strlen (output->name),

+					       output);

+

+	if (output->funcs->create_resources != NULL)

+	    output->funcs->create_resources(output);

+	RRPostPendingProperties (output->randr_output);

+    }

+    return TRUE;

+}

+

+static Bool

+xf86RandR12CreateScreenResources12 (ScreenPtr pScreen)

+{

+    int			c;

+    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];

+    xf86CrtcConfigPtr   config = XF86_CRTC_CONFIG_PTR(pScrn);

+

+#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)

+    if (xf86RandR12Key == NULL)

+	return TRUE;

+#endif

+

+    for (c = 0; c < config->num_crtc; c++)

+        xf86RandR12CrtcNotify (config->crtc[c]->randr_crtc);

+    

+    RRScreenSetSizeRange (pScreen, config->minWidth, config->minHeight,

+			  config->maxWidth, config->maxHeight);

+    return TRUE;

+}

+

+/*

+ * Something happened within the screen configuration due

+ * to DGA, VidMode or hot key. Tell RandR

+ */

+

+void

+xf86RandR12TellChanged (ScreenPtr pScreen)

+{

+    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];

+    xf86CrtcConfigPtr   config = XF86_CRTC_CONFIG_PTR(pScrn);

+    int			c;

+

+#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)

+    if (xf86RandR12Key == NULL)

+	return;

+#else

+    if (!XF86RANDRINFO(pScreen))

+	return;

+#endif

+

+    xf86RandR12SetInfo12 (pScreen);

+    for (c = 0; c < config->num_crtc; c++)

+	xf86RandR12CrtcNotify (config->crtc[c]->randr_crtc);

+

+    RRTellChanged (pScreen);

+}

+

+static void

+xf86RandR12PointerMoved (int scrnIndex, int x, int y)

+{

+    ScreenPtr		pScreen = screenInfo.screens[scrnIndex];

+    ScrnInfoPtr		pScrn   = XF86SCRNINFO(pScreen);

+    xf86CrtcConfigPtr	config  = XF86_CRTC_CONFIG_PTR(pScrn);

+    XF86RandRInfoPtr	randrp  = XF86RANDRINFO(pScreen);

+    int c;

+

+    randrp->pointerX = x;

+    randrp->pointerY = y;

+    for (c = 0; c < config->num_crtc; c++)

+	xf86RandR13Pan (config->crtc[c], x, y);

+}

+

+static Bool

+xf86RandR13GetPanning (ScreenPtr           pScreen,

+		       RRCrtcPtr           randr_crtc,

+		       BoxPtr              totalArea,

+		       BoxPtr              trackingArea,

+		       INT16               *border)

+{

+    xf86CrtcPtr		crtc = randr_crtc->devPrivate;

+

+    if (crtc->version < 2)

+	return FALSE;

+    if (totalArea)

+	memcpy (totalArea,    &crtc->panningTotalArea,    sizeof(BoxRec));

+    if (trackingArea)

+	memcpy (trackingArea, &crtc->panningTrackingArea, sizeof(BoxRec));

+    if (border)

+	memcpy (border,        crtc->panningBorder,       4*sizeof(INT16));

+

+    return TRUE;

+}

+

+static Bool

+xf86RandR13SetPanning (ScreenPtr           pScreen,

+		       RRCrtcPtr           randr_crtc,

+		       BoxPtr              totalArea,

+		       BoxPtr              trackingArea,

+		       INT16               *border)

+{

+    XF86RandRInfoPtr	randrp  = XF86RANDRINFO(pScreen);

+    xf86CrtcPtr		crtc = randr_crtc->devPrivate;

+    BoxRec		oldTotalArea;

+    BoxRec		oldTrackingArea;

+    INT16		oldBorder[4];

+

+

+    if (crtc->version < 2)

+	return FALSE;

+

+    memcpy (&oldTotalArea,    &crtc->panningTotalArea,    sizeof(BoxRec));

+    memcpy (&oldTrackingArea, &crtc->panningTrackingArea, sizeof(BoxRec));

+    memcpy (oldBorder,         crtc->panningBorder,       4*sizeof(INT16));

+

+    if (totalArea)

+	memcpy (&crtc->panningTotalArea, totalArea, sizeof(BoxRec));

+    if (trackingArea)

+	memcpy (&crtc->panningTrackingArea, trackingArea, sizeof(BoxRec));

+    if (border)

+	memcpy (crtc->panningBorder, border, 4*sizeof(INT16));

+

+    if (xf86RandR13VerifyPanningArea (crtc, pScreen->width, pScreen->height)) {

+	xf86RandR13Pan (crtc, randrp->pointerX, randrp->pointerY);

+	return TRUE;

+    } else {

+	/* Restore old settings */

+	memcpy (&crtc->panningTotalArea,    &oldTotalArea,    sizeof(BoxRec));

+	memcpy (&crtc->panningTrackingArea, &oldTrackingArea, sizeof(BoxRec));

+	memcpy (crtc->panningBorder,         oldBorder,       4*sizeof(INT16));

+	return FALSE;

+    }

+}

+

+/*

+ * Compatibility with XF86VidMode's gamma changer.  This necessarily clobbers

+ * any per-crtc setup.  You asked for it...

+ */

+

+static void

+gamma_to_ramp(float gamma, CARD16 *ramp, int size)

+{

+    int i;

+

+    for (i = 0; i < size; i++) {

+	if (gamma == 1.0)

+	    ramp[i] = i << 8;

+	else

+	    ramp[i] = (CARD16)(pow((double)i / (double)(size - 1), 1. / gamma)

+			       * (double)(size - 1) * 256);

+    }

+}

+

+static int

+xf86RandR12ChangeGamma(int scrnIndex, Gamma gamma)

+{

+    CARD16 *points, *red, *green, *blue;

+    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];

+    RRCrtcPtr crtc = xf86CompatRRCrtc(pScrn);

+    int size;

+

+    if (!crtc)

+	return Success;

+

+    size = max(0, crtc->gammaSize);

+    if (!size)

+	return Success;

+

+    points = calloc(size, 3 * sizeof(CARD16));

+    if (!points)

+	return BadAlloc;

+

+    red = points;

+    green = points + size;

+    blue = points + 2 * size;

+

+    gamma_to_ramp(gamma.red, red, size);

+    gamma_to_ramp(gamma.green, green, size);

+    gamma_to_ramp(gamma.blue, blue, size);

+    RRCrtcGammaSet(crtc, red, green, blue);

+

+    free(points);

+

+    pScrn->gamma = gamma;

+

+    return Success;

+}

+

+static Bool

+xf86RandR12EnterVT (int screen_index, int flags)

+{

+    ScreenPtr        pScreen = screenInfo.screens[screen_index];

+    XF86RandRInfoPtr randrp  = XF86RANDRINFO(pScreen);

+

+    if (randrp->orig_EnterVT) {

+	if (!randrp->orig_EnterVT (screen_index, flags))

+	    return FALSE;

+    }

+

+    return RRGetInfo (pScreen, TRUE); /* force a re-probe of outputs and notify clients about changes */

+}

+

+static Bool

+xf86RandR12Init12 (ScreenPtr pScreen)

+{

+    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];

+    rrScrPrivPtr	rp = rrGetScrPriv(pScreen);

+    XF86RandRInfoPtr	randrp  = XF86RANDRINFO(pScreen);

+

+    rp->rrGetInfo = xf86RandR12GetInfo12;

+    rp->rrScreenSetSize = xf86RandR12ScreenSetSize;

+    rp->rrCrtcSet = xf86RandR12CrtcSet;

+    rp->rrCrtcSetGamma = xf86RandR12CrtcSetGamma;

+    rp->rrCrtcGetGamma = xf86RandR12CrtcGetGamma;

+    rp->rrOutputSetProperty = xf86RandR12OutputSetProperty;

+    rp->rrOutputValidateMode = xf86RandR12OutputValidateMode;

+#if RANDR_13_INTERFACE

+    rp->rrOutputGetProperty = xf86RandR13OutputGetProperty;

+    rp->rrGetPanning = xf86RandR13GetPanning;

+    rp->rrSetPanning = xf86RandR13SetPanning;

+#endif

+    rp->rrModeDestroy = xf86RandR12ModeDestroy;

+    rp->rrSetConfig = NULL;

+    pScrn->PointerMoved = xf86RandR12PointerMoved;

+    pScrn->ChangeGamma = xf86RandR12ChangeGamma;

+

+    randrp->orig_EnterVT = pScrn->EnterVT;

+    pScrn->EnterVT = xf86RandR12EnterVT;

+

+    if (!xf86RandR12CreateObjects12 (pScreen))

+	return FALSE;

+

+    /*

+     * Configure output modes

+     */

+    if (!xf86RandR12SetInfo12 (pScreen))

+	return FALSE;

+    return TRUE;

+}

+

+#endif

+

+Bool

+xf86RandR12PreInit (ScrnInfoPtr pScrn)

+{

+    return TRUE;

+}