Synchronised line endinge with release branch

4 files changed, 4008 insertions, 4008 deletions

diff --git a/xorg-server/hw/xfree86/modes/xf86Crtc.h b/xorg-server/hw/xfree86/modes/xf86Crtc.h
index 5dfcec280..68a968cc2 100644
--- a/xorg-server/hw/xfree86/modes/xf86Crtc.h
+++ b/xorg-server/hw/xfree86/modes/xf86Crtc.h
@@ -1,972 +1,972 @@
-/*

- * Copyright © 2006 Keith Packard

- *

- * Permission to use, copy, modify, distribute, and sell this software and its

- * documentation for any purpose is hereby granted without fee, provided that

- * the above copyright notice appear in all copies and that both that copyright

- * notice and this permission notice appear in supporting documentation, and

- * that the name of the copyright holders not be used in advertising or

- * publicity pertaining to distribution of the software without specific,

- * written prior permission.  The copyright holders make no representations

- * about the suitability of this software for any purpose.  It is provided "as

- * is" without express or implied warranty.

- *

- * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

- * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR

- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE

- * OF THIS SOFTWARE.

- */

-#ifndef _XF86CRTC_H_

-#define _XF86CRTC_H_

-

-#include <edid.h>

-#include "randrstr.h"

-#if XF86_MODES_RENAME

-#include "xf86Rename.h"

-#endif

-#include "xf86Modes.h"

-#include "xf86Cursor.h"

-#include "xf86i2c.h"

-#include "damage.h"

-#include "picturestr.h"

-

-/* Compat definitions for older X Servers. */

-#ifndef M_T_PREFERRED

-#define M_T_PREFERRED	0x08

-#endif

-#ifndef M_T_DRIVER

-#define M_T_DRIVER	0x40

-#endif

-#ifndef M_T_USERPREF

-#define M_T_USERPREF	0x80

-#endif

-#ifndef HARDWARE_CURSOR_ARGB

-#define HARDWARE_CURSOR_ARGB				0x00004000

-#endif

-

-typedef struct _xf86Crtc xf86CrtcRec, *xf86CrtcPtr;

-typedef struct _xf86Output xf86OutputRec, *xf86OutputPtr;

-

-/* define a standard for connector types */

-typedef enum _xf86ConnectorType {

-   XF86ConnectorNone,

-   XF86ConnectorVGA,

-   XF86ConnectorDVI_I,

-   XF86ConnectorDVI_D,

-   XF86ConnectorDVI_A,

-   XF86ConnectorComposite,

-   XF86ConnectorSvideo,

-   XF86ConnectorComponent,

-   XF86ConnectorLFP,

-   XF86ConnectorProprietary,

-   XF86ConnectorHDMI,

-   XF86ConnectorDisplayPort,

-} xf86ConnectorType;

-

-typedef enum _xf86OutputStatus {

-   XF86OutputStatusConnected,

-   XF86OutputStatusDisconnected,

-   XF86OutputStatusUnknown

-} xf86OutputStatus;

-

-typedef struct _xf86CrtcFuncs {

-   /**

-    * Turns the crtc on/off, or sets intermediate power levels if available.

-    *

-    * Unsupported intermediate modes drop to the lower power setting.  If the

-    * mode is DPMSModeOff, the crtc must be disabled sufficiently for it to

-    * be safe to call mode_set.

-    */

-   void

-    (*dpms)(xf86CrtcPtr		crtc,

-	    int		    	mode);

-

-   /**

-    * Saves the crtc's state for restoration on VT switch.

-    */

-   void

-    (*save)(xf86CrtcPtr		crtc);

-

-   /**

-    * Restore's the crtc's state at VT switch.

-    */

-   void

-    (*restore)(xf86CrtcPtr	crtc);

-

-    /**

-     * Lock CRTC prior to mode setting, mostly for DRI.

-     * Returns whether unlock is needed

-     */

-    Bool

-    (*lock) (xf86CrtcPtr crtc);

-    

-    /**

-     * Unlock CRTC after mode setting, mostly for DRI

-     */

-    void

-    (*unlock) (xf86CrtcPtr crtc);

-    

-    /**

-     * Callback to adjust the mode to be set in the CRTC.

-     *

-     * This allows a CRTC to adjust the clock or even the entire set of

-     * timings, which is used for panels with fixed timings or for

-     * buses with clock limitations.

-     */

-    Bool

-    (*mode_fixup)(xf86CrtcPtr crtc,

-		  DisplayModePtr mode,

-		  DisplayModePtr adjusted_mode);

-

-    /**

-     * Prepare CRTC for an upcoming mode set.

-     */

-    void

-    (*prepare)(xf86CrtcPtr crtc);

-

-    /**

-     * Callback for setting up a video mode after fixups have been made.

-     */

-    void

-    (*mode_set)(xf86CrtcPtr crtc,

-		DisplayModePtr mode,

-		DisplayModePtr adjusted_mode,

-		int x, int y);

-

-    /**

-     * Commit mode changes to a CRTC

-     */

-    void

-    (*commit)(xf86CrtcPtr crtc);

-

-    /* Set the color ramps for the CRTC to the given values. */

-    void

-    (*gamma_set)(xf86CrtcPtr crtc, CARD16 *red, CARD16 *green, CARD16 *blue,

-		 int size);

-

-    /**

-     * Allocate the shadow area, delay the pixmap creation until needed

-     */

-    void *

-    (*shadow_allocate) (xf86CrtcPtr crtc, int width, int height);

-    

-    /**

-     * Create shadow pixmap for rotation support

-     */

-    PixmapPtr

-    (*shadow_create) (xf86CrtcPtr crtc, void *data, int width, int height);

-    

-    /**

-     * Destroy shadow pixmap

-     */

-    void

-    (*shadow_destroy) (xf86CrtcPtr crtc, PixmapPtr pPixmap, void *data);

-

-    /**

-     * Set cursor colors

-     */

-    void

-    (*set_cursor_colors) (xf86CrtcPtr crtc, int bg, int fg);

-

-    /**

-     * Set cursor position

-     */

-    void

-    (*set_cursor_position) (xf86CrtcPtr crtc, int x, int y);

-

-    /**

-     * Show cursor

-     */

-    void

-    (*show_cursor) (xf86CrtcPtr crtc);

-

-    /**

-     * Hide cursor

-     */

-    void

-    (*hide_cursor) (xf86CrtcPtr crtc);

-

-    /**

-     * Load monochrome image

-     */

-    void

-    (*load_cursor_image) (xf86CrtcPtr crtc, CARD8 *image);

-

-    /**

-     * Load ARGB image

-     */

-     void

-     (*load_cursor_argb) (xf86CrtcPtr crtc, CARD32 *image);

-     

-    /**

-     * Clean up driver-specific bits of the crtc

-     */

-    void

-    (*destroy) (xf86CrtcPtr	crtc);

-

-    /**

-     * Less fine-grained mode setting entry point for kernel modesetting

-     */

-    Bool

-    (*set_mode_major)(xf86CrtcPtr crtc, DisplayModePtr mode,

-		      Rotation rotation, int x, int y);

-

-    /**

-     * Callback for panning. Doesn't change the mode.

-     * Added in ABI version 2

-     */

-    void

-    (*set_origin)(xf86CrtcPtr crtc, int x, int y);

-

-} xf86CrtcFuncsRec, *xf86CrtcFuncsPtr;

-

-#define XF86_CRTC_VERSION 3

-

-struct _xf86Crtc {

-    /**

-     * ABI versioning

-     */

-    int version;

-

-    /**

-     * Associated ScrnInfo

-     */

-    ScrnInfoPtr	    scrn;

-    

-    /**

-     * Desired state of this CRTC

-     *

-     * Set when this CRTC should be driving one or more outputs 

-     */

-    Bool	    enabled;

-    

-    /**

-     * Active mode

-     *

-     * This reflects the mode as set in the CRTC currently

-     * It will be cleared when the VT is not active or

-     * during server startup

-     */

-    DisplayModeRec  mode;

-    Rotation	    rotation;

-    PixmapPtr	    rotatedPixmap;

-    void	    *rotatedData;

-    

-    /**

-     * Position on screen

-     *

-     * Locates this CRTC within the frame buffer

-     */

-    int		    x, y;

-    

-    /**

-     * Desired mode

-     *

-     * This is set to the requested mode, independent of

-     * whether the VT is active. In particular, it receives

-     * the startup configured mode and saves the active mode

-     * on VT switch.

-     */

-    DisplayModeRec  desiredMode;

-    Rotation	    desiredRotation;

-    int		    desiredX, desiredY;

-    

-    /** crtc-specific functions */

-    const xf86CrtcFuncsRec *funcs;

-

-    /**

-     * Driver private

-     *

-     * Holds driver-private information

-     */

-    void	    *driver_private;

-

-#ifdef RANDR_12_INTERFACE

-    /**

-     * RandR crtc

-     *

-     * When RandR 1.2 is available, this

-     * points at the associated crtc object

-     */

-    RRCrtcPtr	    randr_crtc;

-#else

-    void	    *randr_crtc;

-#endif

-

-    /**

-     * Current cursor is ARGB

-     */

-    Bool	    cursor_argb;

-    /**

-     * Track whether cursor is within CRTC range 

-     */

-    Bool	    cursor_in_range;

-    /**

-     * Track state of cursor associated with this CRTC

-     */

-    Bool	    cursor_shown;

-

-    /**

-     * Current transformation matrix

-     */

-    PictTransform   crtc_to_framebuffer;

-    /* framebuffer_to_crtc was removed in ABI 2 */

-    struct pict_f_transform f_crtc_to_framebuffer; /* ABI 2 */

-    struct pict_f_transform f_framebuffer_to_crtc; /* ABI 2 */

-    PictFilterPtr   filter; /* ABI 2 */

-    xFixed	    *params; /* ABI 2 */

-    int		    nparams; /* ABI 2 */

-    int		    filter_width; /* ABI 2 */

-    int		    filter_height; /* ABI 2 */

-    Bool	    transform_in_use;

-    RRTransformRec  transform; /* ABI 2 */

-    Bool	    transformPresent; /* ABI 2 */

-    RRTransformRec  desiredTransform; /* ABI 2 */

-    Bool	    desiredTransformPresent; /* ABI 2 */

-    /**

-     * Bounding box in screen space

-     */

-    BoxRec	    bounds;

-    /**

-     * Panning:

-     * TotalArea: total panning area, larger than CRTC's size

-     * TrackingArea: Area of the pointer for which the CRTC is panned

-     * border: Borders of the displayed CRTC area which induces panning if the pointer reaches them

-     * Added in ABI version 2

-     */

-    BoxRec          panningTotalArea;

-    BoxRec          panningTrackingArea;

-    INT16           panningBorder[4];

-

-    /**

-     * Current gamma, especially useful after initial config.

-     * Added in ABI version 3

-     */

-    CARD16 *gamma_red;

-    CARD16 *gamma_green;

-    CARD16 *gamma_blue;

-    int gamma_size;

-

-    /**

-     * Actual state of this CRTC

-     *

-     * Set to TRUE after modesetting, set to FALSE if no outputs are connected

-     * Added in ABI version 3

-     */

-    Bool	    active;

-    /**

-     * Clear the shadow

-     */

-    Bool	    shadowClear;

-};

-

-typedef struct _xf86OutputFuncs {

-    /**

-     * Called to allow the output a chance to create properties after the

-     * RandR objects have been created.

-     */

-    void

-    (*create_resources)(xf86OutputPtr output);

-

-    /**

-     * Turns the output on/off, or sets intermediate power levels if available.

-     *

-     * Unsupported intermediate modes drop to the lower power setting.  If the

-     * mode is DPMSModeOff, the output must be disabled, as the DPLL may be

-     * disabled afterwards.

-     */

-    void

-    (*dpms)(xf86OutputPtr	output,

-	    int			mode);

-

-    /**

-     * Saves the output's state for restoration on VT switch.

-     */

-    void

-    (*save)(xf86OutputPtr	output);

-

-    /**

-     * Restore's the output's state at VT switch.

-     */

-    void

-    (*restore)(xf86OutputPtr	output);

-

-    /**

-     * Callback for testing a video mode for a given output.

-     *

-     * This function should only check for cases where a mode can't be supported

-     * on the output specifically, and not represent generic CRTC limitations.

-     *

-     * \return MODE_OK if the mode is valid, or another MODE_* otherwise.

-     */

-    int

-    (*mode_valid)(xf86OutputPtr	    output,

-		  DisplayModePtr    pMode);

-

-    /**

-     * Callback to adjust the mode to be set in the CRTC.

-     *

-     * This allows an output to adjust the clock or even the entire set of

-     * timings, which is used for panels with fixed timings or for

-     * buses with clock limitations.

-     */

-    Bool

-    (*mode_fixup)(xf86OutputPtr output,

-		  DisplayModePtr mode,

-		  DisplayModePtr adjusted_mode);

-

-    /**

-     * Callback for preparing mode changes on an output

-     */

-    void

-    (*prepare)(xf86OutputPtr output);

-

-    /**

-     * Callback for committing mode changes on an output

-     */

-    void

-    (*commit)(xf86OutputPtr output);

-

-    /**

-     * Callback for setting up a video mode after fixups have been made.

-     *

-     * This is only called while the output is disabled.  The dpms callback

-     * must be all that's necessary for the output, to turn the output on

-     * after this function is called.

-     */

-    void

-    (*mode_set)(xf86OutputPtr  output,

-		DisplayModePtr mode,

-		DisplayModePtr adjusted_mode);

-

-    /**

-     * Probe for a connected output, and return detect_status.

-     */

-    xf86OutputStatus

-    (*detect)(xf86OutputPtr	    output);

-

-    /**

-     * Query the device for the modes it provides.

-     *

-     * This function may also update MonInfo, mm_width, and mm_height.

-     *

-     * \return singly-linked list of modes or NULL if no modes found.

-     */

-    DisplayModePtr

-    (*get_modes)(xf86OutputPtr	    output);

-

-#ifdef RANDR_12_INTERFACE

-    /**

-     * Callback when an output's property has changed.

-     */

-    Bool

-    (*set_property)(xf86OutputPtr output,

-		    Atom property,

-		    RRPropertyValuePtr value);

-#endif

-#ifdef RANDR_13_INTERFACE

-    /**

-     * Callback to get an updated property value

-     */

-    Bool

-    (*get_property)(xf86OutputPtr output,

-		    Atom property);

-#endif

-#ifdef RANDR_GET_CRTC_INTERFACE

-    /**

-     * Callback to get current CRTC for a given output

-     */

-    xf86CrtcPtr

-    (*get_crtc)(xf86OutputPtr output);

-#endif

-    /**

-     * Clean up driver-specific bits of the output

-     */

-    void

-    (*destroy) (xf86OutputPtr	    output);

-} xf86OutputFuncsRec, *xf86OutputFuncsPtr;

-

-

-#define XF86_OUTPUT_VERSION 2

-

-struct _xf86Output {

-    /**

-     * ABI versioning

-     */

-    int version;

-

-    /**

-     * Associated ScrnInfo

-     */

-    ScrnInfoPtr		scrn;

-

-    /**

-     * Currently connected crtc (if any)

-     *

-     * If this output is not in use, this field will be NULL.

-     */

-    xf86CrtcPtr		crtc;

-

-    /**

-     * Possible CRTCs for this output as a mask of crtc indices

-     */

-    CARD32		possible_crtcs;

-

-    /**

-     * Possible outputs to share the same CRTC as a mask of output indices

-     */

-    CARD32		possible_clones;

-    

-    /**

-     * Whether this output can support interlaced modes

-     */

-    Bool		interlaceAllowed;

-

-    /**

-     * Whether this output can support double scan modes

-     */

-    Bool		doubleScanAllowed;

-

-    /**

-     * List of available modes on this output.

-     *

-     * This should be the list from get_modes(), plus perhaps additional

-     * compatible modes added later.

-     */

-    DisplayModePtr	probed_modes;

-

-    /**

-     * Options parsed from the related monitor section

-     */

-    OptionInfoPtr	options;

-    

-    /**

-     * Configured monitor section

-     */

-    XF86ConfMonitorPtr  conf_monitor;

-    

-    /**

-     * Desired initial position

-     */

-    int			initial_x, initial_y;

-

-    /**

-     * Desired initial rotation

-     */

-    Rotation		initial_rotation;

-

-    /**

-     * Current connection status

-     *

-     * This indicates whether a monitor is known to be connected

-     * to this output or not, or whether there is no way to tell

-     */

-    xf86OutputStatus	status;

-

-    /** EDID monitor information */

-    xf86MonPtr		MonInfo;

-

-    /** subpixel order */

-    int			subpixel_order;

-

-    /** Physical size of the currently attached output device. */

-    int			mm_width, mm_height;

-

-    /** Output name */

-    char		*name;

-

-    /** output-specific functions */

-    const xf86OutputFuncsRec *funcs;

-

-    /** driver private information */

-    void		*driver_private;

-    

-    /** Whether to use the old per-screen Monitor config section */

-    Bool		use_screen_monitor;

-

-#ifdef RANDR_12_INTERFACE

-    /**

-     * RandR 1.2 output structure.

-     *

-     * When RandR 1.2 is available, this points at the associated

-     * RandR output structure and is created when this output is created

-     */

-    RROutputPtr		randr_output;

-#else

-    void		*randr_output;

-#endif

-    /** 

-     * Desired initial panning

-     * Added in ABI version 2

-     */

-    BoxRec          initialTotalArea;

-    BoxRec          initialTrackingArea;

-    INT16           initialBorder[4];

-};

-

-typedef struct _xf86CrtcConfigFuncs {

-    /**

-     * Requests that the driver resize the screen.

-     *

-     * The driver is responsible for updating scrn->virtualX and scrn->virtualY.

-     * If the requested size cannot be set, the driver should leave those values

-     * alone and return FALSE.

-     *

-     * A naive driver that cannot reallocate the screen may simply change

-     * virtual[XY].  A more advanced driver will want to also change the

-     * devPrivate.ptr and devKind of the screen pixmap, update any offscreen

-     * pixmaps it may have moved, and change pScrn->displayWidth.

-     */

-    Bool

-    (*resize)(ScrnInfoPtr	scrn,

-	      int		width,

-	      int		height);

-} xf86CrtcConfigFuncsRec, *xf86CrtcConfigFuncsPtr;

-

-typedef void (*xf86_crtc_notify_proc_ptr) (ScreenPtr pScreen);

-

-typedef struct _xf86CrtcConfig {

-    int			num_output;

-    xf86OutputPtr	*output;

-    /**

-     * compat_output is used whenever we deal

-     * with legacy code that only understands a single

-     * output. pScrn->modes will be loaded from this output,

-     * adjust frame will whack this output, etc.

-     */

-    int			compat_output;

-

-    int			num_crtc;

-    xf86CrtcPtr		*crtc;

-

-    int			minWidth, minHeight;

-    int			maxWidth, maxHeight;

-    

-    /* For crtc-based rotation */

-    DamagePtr		rotation_damage;

-    Bool		rotation_damage_registered;

-

-    /* DGA */

-    unsigned int	dga_flags;

-    unsigned long	dga_address;

-    DGAModePtr		dga_modes;

-    int			dga_nmode;

-    int			dga_width, dga_height, dga_stride;

-    DisplayModePtr	dga_save_mode;

-

-    const xf86CrtcConfigFuncsRec *funcs;

-

-    CreateScreenResourcesProcPtr    CreateScreenResources;

-

-    CloseScreenProcPtr		    CloseScreen;

-

-    /* Cursor information */

-    xf86CursorInfoPtr	cursor_info;

-    CursorPtr		cursor;

-    CARD8		*cursor_image;

-    Bool		cursor_on;

-    CARD32		cursor_fg, cursor_bg;

-

-    /**

-     * Options parsed from the related device section

-     */

-    OptionInfoPtr	options;

-

-    Bool		debug_modes;

-

-    /* wrap screen BlockHandler for rotation */

-    ScreenBlockHandlerProcPtr	BlockHandler;

-

-    /* callback when crtc configuration changes */

-    xf86_crtc_notify_proc_ptr  xf86_crtc_notify;

-

-} xf86CrtcConfigRec, *xf86CrtcConfigPtr;

-

-extern _X_EXPORT int xf86CrtcConfigPrivateIndex;

-

-#define XF86_CRTC_CONFIG_PTR(p)	((xf86CrtcConfigPtr) ((p)->privates[xf86CrtcConfigPrivateIndex].ptr))

-

-static _X_INLINE xf86OutputPtr

-xf86CompatOutput(ScrnInfoPtr pScrn)

-{

-    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);

-    return config->output[config->compat_output];

-}

-

-static _X_INLINE xf86CrtcPtr

-xf86CompatCrtc(ScrnInfoPtr pScrn)

-{

-    xf86OutputPtr compat_output = xf86CompatOutput(pScrn);

-    if (!compat_output)

-	return NULL;

-    return compat_output->crtc;

-}

-

-static _X_INLINE RRCrtcPtr

-xf86CompatRRCrtc(ScrnInfoPtr pScrn)

-{

-    xf86CrtcPtr	compat_crtc = xf86CompatCrtc(pScrn);

-    if (!compat_crtc)

-	return NULL;

-    return compat_crtc->randr_crtc;

-}

-

-

-/*

- * Initialize xf86CrtcConfig structure

- */

-

-extern _X_EXPORT void

-xf86CrtcConfigInit (ScrnInfoPtr				scrn,

-		    const xf86CrtcConfigFuncsRec	*funcs);

-

-extern _X_EXPORT void

-xf86CrtcSetSizeRange (ScrnInfoPtr scrn,

-		      int minWidth, int minHeight,

-		      int maxWidth, int maxHeight);

-

-/*

- * Crtc functions

- */

-extern _X_EXPORT xf86CrtcPtr

-xf86CrtcCreate (ScrnInfoPtr		scrn,

-		const xf86CrtcFuncsRec	*funcs);

-

-extern _X_EXPORT void

-xf86CrtcDestroy (xf86CrtcPtr		crtc);

-

-

-/**

- * Sets the given video mode on the given crtc

- */

-

-extern _X_EXPORT Bool

-xf86CrtcSetModeTransform (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation,

-			  RRTransformPtr transform, int x, int y);

-

-extern _X_EXPORT Bool

-xf86CrtcSetMode (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation,

-		 int x, int y);

-

-extern _X_EXPORT void

-xf86CrtcSetOrigin (xf86CrtcPtr crtc, int x, int y);

-

-/*

- * Assign crtc rotation during mode set

- */

-extern _X_EXPORT Bool

-xf86CrtcRotate (xf86CrtcPtr crtc);

-

-/*

- * Clean up any rotation data, used when a crtc is turned off

- * as well as when rotation is disabled.

- */

-extern _X_EXPORT void

-xf86RotateDestroy (xf86CrtcPtr crtc);

-

-/*

- * free shadow memory allocated for all crtcs

- */

-extern _X_EXPORT void

-xf86RotateFreeShadow(ScrnInfoPtr pScrn);

-

-/*

- * Clean up rotation during CloseScreen

- */

-extern _X_EXPORT void

-xf86RotateCloseScreen (ScreenPtr pScreen);

-

-/**

- * Return whether any output is assigned to the crtc

- */

-extern _X_EXPORT Bool

-xf86CrtcInUse (xf86CrtcPtr crtc);

-

-/*

- * Output functions

- */

-extern _X_EXPORT xf86OutputPtr

-xf86OutputCreate (ScrnInfoPtr		    scrn,

-		  const xf86OutputFuncsRec  *funcs,

-		  const char		    *name);

-

-extern _X_EXPORT void

-xf86OutputUseScreenMonitor (xf86OutputPtr output, Bool use_screen_monitor);

-

-extern _X_EXPORT Bool

-xf86OutputRename (xf86OutputPtr output, const char *name);

-

-extern _X_EXPORT void

-xf86OutputDestroy (xf86OutputPtr	output);

-

-extern _X_EXPORT void

-xf86ProbeOutputModes (ScrnInfoPtr pScrn, int maxX, int maxY);

-

-extern _X_EXPORT void

-xf86SetScrnInfoModes (ScrnInfoPtr pScrn);

-

-#ifdef RANDR_13_INTERFACE

-# define ScreenInitRetType	int

-#else

-# define ScreenInitRetType	Bool

-#endif

-

-extern _X_EXPORT ScreenInitRetType

-xf86CrtcScreenInit (ScreenPtr pScreen);

-

-extern _X_EXPORT Bool

-xf86InitialConfiguration (ScrnInfoPtr pScrn, Bool canGrow);

-

-extern _X_EXPORT void

-xf86DPMSSet(ScrnInfoPtr pScrn, int PowerManagementMode, int flags);

-    

-extern _X_EXPORT Bool

-xf86SaveScreen(ScreenPtr pScreen, int mode);

-

-extern _X_EXPORT void

-xf86DisableUnusedFunctions(ScrnInfoPtr pScrn);

-

-extern _X_EXPORT DisplayModePtr

-xf86OutputFindClosestMode (xf86OutputPtr output, DisplayModePtr desired);

-    

-extern _X_EXPORT Bool

-xf86SetSingleMode (ScrnInfoPtr pScrn, DisplayModePtr desired, Rotation rotation);

-

-/**

- * Set the EDID information for the specified output

- */

-extern _X_EXPORT void

-xf86OutputSetEDID (xf86OutputPtr output, xf86MonPtr edid_mon);

-

-/**

- * Return the list of modes supported by the EDID information

- * stored in 'output'

- */

-extern _X_EXPORT DisplayModePtr

-xf86OutputGetEDIDModes (xf86OutputPtr output);

-

-extern _X_EXPORT xf86MonPtr

-xf86OutputGetEDID (xf86OutputPtr output, I2CBusPtr pDDCBus);

-

-/**

- * Initialize dga for this screen

- */

-

-#ifdef XFreeXDGA

-extern _X_EXPORT Bool

-xf86DiDGAInit (ScreenPtr pScreen, unsigned long dga_address);

-

-/* this is the real function, used only internally */

-_X_INTERNAL Bool

-_xf86_di_dga_init_internal (ScreenPtr pScreen);

-

-/**

- * Re-initialize dga for this screen (as when the set of modes changes)

- */

-

-extern _X_EXPORT Bool

-xf86DiDGAReInit (ScreenPtr pScreen);

-#endif

-

-/* This is the real function, used only internally */

-_X_INTERNAL Bool

-_xf86_di_dga_reinit_internal (ScreenPtr pScreen);

-

-/*

- * Set the subpixel order reported for the screen using

- * the information from the outputs

- */

-

-extern _X_EXPORT void

-xf86CrtcSetScreenSubpixelOrder (ScreenPtr pScreen);

-

-/*

- * Get a standard string name for a connector type 

- */

-extern _X_EXPORT char *

-xf86ConnectorGetName(xf86ConnectorType connector);

-

-/*

- * Using the desired mode information in each crtc, set

- * modes (used in EnterVT functions, or at server startup)

- */

-

-extern _X_EXPORT Bool

-xf86SetDesiredModes (ScrnInfoPtr pScrn);

-

-/**

- * Initialize the CRTC-based cursor code. CRTC function vectors must

- * contain relevant cursor setting functions.

- *

- * Driver should call this from ScreenInit function

- */

-extern _X_EXPORT Bool

-xf86_cursors_init (ScreenPtr screen, int max_width, int max_height, int flags);

-

-/**

- * Called when anything on the screen is reconfigured.

- *

- * Reloads cursor images as needed, then adjusts cursor positions.

- * 

- * Driver should call this from crtc commit function.

- */

-extern _X_EXPORT void

-xf86_reload_cursors (ScreenPtr screen);

-

-/**

- * Called from EnterVT to turn the cursors back on

- */

-extern _X_EXPORT void

-xf86_show_cursors (ScrnInfoPtr scrn);

-

-/**

- * Called by the driver to turn cursors off

- */

-extern _X_EXPORT void

-xf86_hide_cursors (ScrnInfoPtr scrn);

-

-/**

- * Clean up CRTC-based cursor code. Driver must call this at CloseScreen time.

- */

-extern _X_EXPORT void

-xf86_cursors_fini (ScreenPtr screen);

-

-/*

- * For overlay video, compute the relevant CRTC and

- * clip video to that.

- * wraps xf86XVClipVideoHelper()

- */

-

-extern _X_EXPORT Bool

-xf86_crtc_clip_video_helper(ScrnInfoPtr pScrn,

-			    xf86CrtcPtr *crtc_ret,

-			    xf86CrtcPtr desired_crtc,

-			    BoxPtr      dst,

-			    INT32	*xa,

-			    INT32	*xb,

-			    INT32	*ya,

-			    INT32	*yb,

-			    RegionPtr   reg,

-			    INT32	width,

-			    INT32	height);

-    

-extern _X_EXPORT xf86_crtc_notify_proc_ptr

-xf86_wrap_crtc_notify (ScreenPtr pScreen, xf86_crtc_notify_proc_ptr new);

-

-extern _X_EXPORT void

-xf86_unwrap_crtc_notify(ScreenPtr pScreen, xf86_crtc_notify_proc_ptr old);

-

-extern _X_EXPORT void

-xf86_crtc_notify(ScreenPtr pScreen);

-

-/**

- * Gamma

- */

-

-extern _X_EXPORT Bool

-xf86_crtc_supports_gamma(ScrnInfoPtr pScrn);

-

-#endif /* _XF86CRTC_H_ */

+/*
+ * Copyright © 2006 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+#ifndef _XF86CRTC_H_
+#define _XF86CRTC_H_
+
+#include <edid.h>
+#include "randrstr.h"
+#if XF86_MODES_RENAME
+#include "xf86Rename.h"
+#endif
+#include "xf86Modes.h"
+#include "xf86Cursor.h"
+#include "xf86i2c.h"
+#include "damage.h"
+#include "picturestr.h"
+
+/* Compat definitions for older X Servers. */
+#ifndef M_T_PREFERRED
+#define M_T_PREFERRED	0x08
+#endif
+#ifndef M_T_DRIVER
+#define M_T_DRIVER	0x40
+#endif
+#ifndef M_T_USERPREF
+#define M_T_USERPREF	0x80
+#endif
+#ifndef HARDWARE_CURSOR_ARGB
+#define HARDWARE_CURSOR_ARGB				0x00004000
+#endif
+
+typedef struct _xf86Crtc xf86CrtcRec, *xf86CrtcPtr;
+typedef struct _xf86Output xf86OutputRec, *xf86OutputPtr;
+
+/* define a standard for connector types */
+typedef enum _xf86ConnectorType {
+   XF86ConnectorNone,
+   XF86ConnectorVGA,
+   XF86ConnectorDVI_I,
+   XF86ConnectorDVI_D,
+   XF86ConnectorDVI_A,
+   XF86ConnectorComposite,
+   XF86ConnectorSvideo,
+   XF86ConnectorComponent,
+   XF86ConnectorLFP,
+   XF86ConnectorProprietary,
+   XF86ConnectorHDMI,
+   XF86ConnectorDisplayPort,
+} xf86ConnectorType;
+
+typedef enum _xf86OutputStatus {
+   XF86OutputStatusConnected,
+   XF86OutputStatusDisconnected,
+   XF86OutputStatusUnknown
+} xf86OutputStatus;
+
+typedef struct _xf86CrtcFuncs {
+   /**
+    * Turns the crtc on/off, or sets intermediate power levels if available.
+    *
+    * Unsupported intermediate modes drop to the lower power setting.  If the
+    * mode is DPMSModeOff, the crtc must be disabled sufficiently for it to
+    * be safe to call mode_set.
+    */
+   void
+    (*dpms)(xf86CrtcPtr		crtc,
+	    int		    	mode);
+
+   /**
+    * Saves the crtc's state for restoration on VT switch.
+    */
+   void
+    (*save)(xf86CrtcPtr		crtc);
+
+   /**
+    * Restore's the crtc's state at VT switch.
+    */
+   void
+    (*restore)(xf86CrtcPtr	crtc);
+
+    /**
+     * Lock CRTC prior to mode setting, mostly for DRI.
+     * Returns whether unlock is needed
+     */
+    Bool
+    (*lock) (xf86CrtcPtr crtc);
+    
+    /**
+     * Unlock CRTC after mode setting, mostly for DRI
+     */
+    void
+    (*unlock) (xf86CrtcPtr crtc);
+    
+    /**
+     * Callback to adjust the mode to be set in the CRTC.
+     *
+     * This allows a CRTC to adjust the clock or even the entire set of
+     * timings, which is used for panels with fixed timings or for
+     * buses with clock limitations.
+     */
+    Bool
+    (*mode_fixup)(xf86CrtcPtr crtc,
+		  DisplayModePtr mode,
+		  DisplayModePtr adjusted_mode);
+
+    /**
+     * Prepare CRTC for an upcoming mode set.
+     */
+    void
+    (*prepare)(xf86CrtcPtr crtc);
+
+    /**
+     * Callback for setting up a video mode after fixups have been made.
+     */
+    void
+    (*mode_set)(xf86CrtcPtr crtc,
+		DisplayModePtr mode,
+		DisplayModePtr adjusted_mode,
+		int x, int y);
+
+    /**
+     * Commit mode changes to a CRTC
+     */
+    void
+    (*commit)(xf86CrtcPtr crtc);
+
+    /* Set the color ramps for the CRTC to the given values. */
+    void
+    (*gamma_set)(xf86CrtcPtr crtc, CARD16 *red, CARD16 *green, CARD16 *blue,
+		 int size);
+
+    /**
+     * Allocate the shadow area, delay the pixmap creation until needed
+     */
+    void *
+    (*shadow_allocate) (xf86CrtcPtr crtc, int width, int height);
+    
+    /**
+     * Create shadow pixmap for rotation support
+     */
+    PixmapPtr
+    (*shadow_create) (xf86CrtcPtr crtc, void *data, int width, int height);
+    
+    /**
+     * Destroy shadow pixmap
+     */
+    void
+    (*shadow_destroy) (xf86CrtcPtr crtc, PixmapPtr pPixmap, void *data);
+
+    /**
+     * Set cursor colors
+     */
+    void
+    (*set_cursor_colors) (xf86CrtcPtr crtc, int bg, int fg);
+
+    /**
+     * Set cursor position
+     */
+    void
+    (*set_cursor_position) (xf86CrtcPtr crtc, int x, int y);
+
+    /**
+     * Show cursor
+     */
+    void
+    (*show_cursor) (xf86CrtcPtr crtc);
+
+    /**
+     * Hide cursor
+     */
+    void
+    (*hide_cursor) (xf86CrtcPtr crtc);
+
+    /**
+     * Load monochrome image
+     */
+    void
+    (*load_cursor_image) (xf86CrtcPtr crtc, CARD8 *image);
+
+    /**
+     * Load ARGB image
+     */
+     void
+     (*load_cursor_argb) (xf86CrtcPtr crtc, CARD32 *image);
+     
+    /**
+     * Clean up driver-specific bits of the crtc
+     */
+    void
+    (*destroy) (xf86CrtcPtr	crtc);
+
+    /**
+     * Less fine-grained mode setting entry point for kernel modesetting
+     */
+    Bool
+    (*set_mode_major)(xf86CrtcPtr crtc, DisplayModePtr mode,
+		      Rotation rotation, int x, int y);
+
+    /**
+     * Callback for panning. Doesn't change the mode.
+     * Added in ABI version 2
+     */
+    void
+    (*set_origin)(xf86CrtcPtr crtc, int x, int y);
+
+} xf86CrtcFuncsRec, *xf86CrtcFuncsPtr;
+
+#define XF86_CRTC_VERSION 3
+
+struct _xf86Crtc {
+    /**
+     * ABI versioning
+     */
+    int version;
+
+    /**
+     * Associated ScrnInfo
+     */
+    ScrnInfoPtr	    scrn;
+    
+    /**
+     * Desired state of this CRTC
+     *
+     * Set when this CRTC should be driving one or more outputs 
+     */
+    Bool	    enabled;
+    
+    /**
+     * Active mode
+     *
+     * This reflects the mode as set in the CRTC currently
+     * It will be cleared when the VT is not active or
+     * during server startup
+     */
+    DisplayModeRec  mode;
+    Rotation	    rotation;
+    PixmapPtr	    rotatedPixmap;
+    void	    *rotatedData;
+    
+    /**
+     * Position on screen
+     *
+     * Locates this CRTC within the frame buffer
+     */
+    int		    x, y;
+    
+    /**
+     * Desired mode
+     *
+     * This is set to the requested mode, independent of
+     * whether the VT is active. In particular, it receives
+     * the startup configured mode and saves the active mode
+     * on VT switch.
+     */
+    DisplayModeRec  desiredMode;
+    Rotation	    desiredRotation;
+    int		    desiredX, desiredY;
+    
+    /** crtc-specific functions */
+    const xf86CrtcFuncsRec *funcs;
+
+    /**
+     * Driver private
+     *
+     * Holds driver-private information
+     */
+    void	    *driver_private;
+
+#ifdef RANDR_12_INTERFACE
+    /**
+     * RandR crtc
+     *
+     * When RandR 1.2 is available, this
+     * points at the associated crtc object
+     */
+    RRCrtcPtr	    randr_crtc;
+#else
+    void	    *randr_crtc;
+#endif
+
+    /**
+     * Current cursor is ARGB
+     */
+    Bool	    cursor_argb;
+    /**
+     * Track whether cursor is within CRTC range 
+     */
+    Bool	    cursor_in_range;
+    /**
+     * Track state of cursor associated with this CRTC
+     */
+    Bool	    cursor_shown;
+
+    /**
+     * Current transformation matrix
+     */
+    PictTransform   crtc_to_framebuffer;
+    /* framebuffer_to_crtc was removed in ABI 2 */
+    struct pict_f_transform f_crtc_to_framebuffer; /* ABI 2 */
+    struct pict_f_transform f_framebuffer_to_crtc; /* ABI 2 */
+    PictFilterPtr   filter; /* ABI 2 */
+    xFixed	    *params; /* ABI 2 */
+    int		    nparams; /* ABI 2 */
+    int		    filter_width; /* ABI 2 */
+    int		    filter_height; /* ABI 2 */
+    Bool	    transform_in_use;
+    RRTransformRec  transform; /* ABI 2 */
+    Bool	    transformPresent; /* ABI 2 */
+    RRTransformRec  desiredTransform; /* ABI 2 */
+    Bool	    desiredTransformPresent; /* ABI 2 */
+    /**
+     * Bounding box in screen space
+     */
+    BoxRec	    bounds;
+    /**
+     * Panning:
+     * TotalArea: total panning area, larger than CRTC's size
+     * TrackingArea: Area of the pointer for which the CRTC is panned
+     * border: Borders of the displayed CRTC area which induces panning if the pointer reaches them
+     * Added in ABI version 2
+     */
+    BoxRec          panningTotalArea;
+    BoxRec          panningTrackingArea;
+    INT16           panningBorder[4];
+
+    /**
+     * Current gamma, especially useful after initial config.
+     * Added in ABI version 3
+     */
+    CARD16 *gamma_red;
+    CARD16 *gamma_green;
+    CARD16 *gamma_blue;
+    int gamma_size;
+
+    /**
+     * Actual state of this CRTC
+     *
+     * Set to TRUE after modesetting, set to FALSE if no outputs are connected
+     * Added in ABI version 3
+     */
+    Bool	    active;
+    /**
+     * Clear the shadow
+     */
+    Bool	    shadowClear;
+};
+
+typedef struct _xf86OutputFuncs {
+    /**
+     * Called to allow the output a chance to create properties after the
+     * RandR objects have been created.
+     */
+    void
+    (*create_resources)(xf86OutputPtr output);
+
+    /**
+     * Turns the output on/off, or sets intermediate power levels if available.
+     *
+     * Unsupported intermediate modes drop to the lower power setting.  If the
+     * mode is DPMSModeOff, the output must be disabled, as the DPLL may be
+     * disabled afterwards.
+     */
+    void
+    (*dpms)(xf86OutputPtr	output,
+	    int			mode);
+
+    /**
+     * Saves the output's state for restoration on VT switch.
+     */
+    void
+    (*save)(xf86OutputPtr	output);
+
+    /**
+     * Restore's the output's state at VT switch.
+     */
+    void
+    (*restore)(xf86OutputPtr	output);
+
+    /**
+     * Callback for testing a video mode for a given output.
+     *
+     * This function should only check for cases where a mode can't be supported
+     * on the output specifically, and not represent generic CRTC limitations.
+     *
+     * \return MODE_OK if the mode is valid, or another MODE_* otherwise.
+     */
+    int
+    (*mode_valid)(xf86OutputPtr	    output,
+		  DisplayModePtr    pMode);
+
+    /**
+     * Callback to adjust the mode to be set in the CRTC.
+     *
+     * This allows an output to adjust the clock or even the entire set of
+     * timings, which is used for panels with fixed timings or for
+     * buses with clock limitations.
+     */
+    Bool
+    (*mode_fixup)(xf86OutputPtr output,
+		  DisplayModePtr mode,
+		  DisplayModePtr adjusted_mode);
+
+    /**
+     * Callback for preparing mode changes on an output
+     */
+    void
+    (*prepare)(xf86OutputPtr output);
+
+    /**
+     * Callback for committing mode changes on an output
+     */
+    void
+    (*commit)(xf86OutputPtr output);
+
+    /**
+     * Callback for setting up a video mode after fixups have been made.
+     *
+     * This is only called while the output is disabled.  The dpms callback
+     * must be all that's necessary for the output, to turn the output on
+     * after this function is called.
+     */
+    void
+    (*mode_set)(xf86OutputPtr  output,
+		DisplayModePtr mode,
+		DisplayModePtr adjusted_mode);
+
+    /**
+     * Probe for a connected output, and return detect_status.
+     */
+    xf86OutputStatus
+    (*detect)(xf86OutputPtr	    output);
+
+    /**
+     * Query the device for the modes it provides.
+     *
+     * This function may also update MonInfo, mm_width, and mm_height.
+     *
+     * \return singly-linked list of modes or NULL if no modes found.
+     */
+    DisplayModePtr
+    (*get_modes)(xf86OutputPtr	    output);
+
+#ifdef RANDR_12_INTERFACE
+    /**
+     * Callback when an output's property has changed.
+     */
+    Bool
+    (*set_property)(xf86OutputPtr output,
+		    Atom property,
+		    RRPropertyValuePtr value);
+#endif
+#ifdef RANDR_13_INTERFACE
+    /**
+     * Callback to get an updated property value
+     */
+    Bool
+    (*get_property)(xf86OutputPtr output,
+		    Atom property);
+#endif
+#ifdef RANDR_GET_CRTC_INTERFACE
+    /**
+     * Callback to get current CRTC for a given output
+     */
+    xf86CrtcPtr
+    (*get_crtc)(xf86OutputPtr output);
+#endif
+    /**
+     * Clean up driver-specific bits of the output
+     */
+    void
+    (*destroy) (xf86OutputPtr	    output);
+} xf86OutputFuncsRec, *xf86OutputFuncsPtr;
+
+
+#define XF86_OUTPUT_VERSION 2
+
+struct _xf86Output {
+    /**
+     * ABI versioning
+     */
+    int version;
+
+    /**
+     * Associated ScrnInfo
+     */
+    ScrnInfoPtr		scrn;
+
+    /**
+     * Currently connected crtc (if any)
+     *
+     * If this output is not in use, this field will be NULL.
+     */
+    xf86CrtcPtr		crtc;
+
+    /**
+     * Possible CRTCs for this output as a mask of crtc indices
+     */
+    CARD32		possible_crtcs;
+
+    /**
+     * Possible outputs to share the same CRTC as a mask of output indices
+     */
+    CARD32		possible_clones;
+    
+    /**
+     * Whether this output can support interlaced modes
+     */
+    Bool		interlaceAllowed;
+
+    /**
+     * Whether this output can support double scan modes
+     */
+    Bool		doubleScanAllowed;
+
+    /**
+     * List of available modes on this output.
+     *
+     * This should be the list from get_modes(), plus perhaps additional
+     * compatible modes added later.
+     */
+    DisplayModePtr	probed_modes;
+
+    /**
+     * Options parsed from the related monitor section
+     */
+    OptionInfoPtr	options;
+    
+    /**
+     * Configured monitor section
+     */
+    XF86ConfMonitorPtr  conf_monitor;
+    
+    /**
+     * Desired initial position
+     */
+    int			initial_x, initial_y;
+
+    /**
+     * Desired initial rotation
+     */
+    Rotation		initial_rotation;
+
+    /**
+     * Current connection status
+     *
+     * This indicates whether a monitor is known to be connected
+     * to this output or not, or whether there is no way to tell
+     */
+    xf86OutputStatus	status;
+
+    /** EDID monitor information */
+    xf86MonPtr		MonInfo;
+
+    /** subpixel order */
+    int			subpixel_order;
+
+    /** Physical size of the currently attached output device. */
+    int			mm_width, mm_height;
+
+    /** Output name */
+    char		*name;
+
+    /** output-specific functions */
+    const xf86OutputFuncsRec *funcs;
+
+    /** driver private information */
+    void		*driver_private;
+    
+    /** Whether to use the old per-screen Monitor config section */
+    Bool		use_screen_monitor;
+
+#ifdef RANDR_12_INTERFACE
+    /**
+     * RandR 1.2 output structure.
+     *
+     * When RandR 1.2 is available, this points at the associated
+     * RandR output structure and is created when this output is created
+     */
+    RROutputPtr		randr_output;
+#else
+    void		*randr_output;
+#endif
+    /** 
+     * Desired initial panning
+     * Added in ABI version 2
+     */
+    BoxRec          initialTotalArea;
+    BoxRec          initialTrackingArea;
+    INT16           initialBorder[4];
+};
+
+typedef struct _xf86CrtcConfigFuncs {
+    /**
+     * Requests that the driver resize the screen.
+     *
+     * The driver is responsible for updating scrn->virtualX and scrn->virtualY.
+     * If the requested size cannot be set, the driver should leave those values
+     * alone and return FALSE.
+     *
+     * A naive driver that cannot reallocate the screen may simply change
+     * virtual[XY].  A more advanced driver will want to also change the
+     * devPrivate.ptr and devKind of the screen pixmap, update any offscreen
+     * pixmaps it may have moved, and change pScrn->displayWidth.
+     */
+    Bool
+    (*resize)(ScrnInfoPtr	scrn,
+	      int		width,
+	      int		height);
+} xf86CrtcConfigFuncsRec, *xf86CrtcConfigFuncsPtr;
+
+typedef void (*xf86_crtc_notify_proc_ptr) (ScreenPtr pScreen);
+
+typedef struct _xf86CrtcConfig {
+    int			num_output;
+    xf86OutputPtr	*output;
+    /**
+     * compat_output is used whenever we deal
+     * with legacy code that only understands a single
+     * output. pScrn->modes will be loaded from this output,
+     * adjust frame will whack this output, etc.
+     */
+    int			compat_output;
+
+    int			num_crtc;
+    xf86CrtcPtr		*crtc;
+
+    int			minWidth, minHeight;
+    int			maxWidth, maxHeight;
+    
+    /* For crtc-based rotation */
+    DamagePtr		rotation_damage;
+    Bool		rotation_damage_registered;
+
+    /* DGA */
+    unsigned int	dga_flags;
+    unsigned long	dga_address;
+    DGAModePtr		dga_modes;
+    int			dga_nmode;
+    int			dga_width, dga_height, dga_stride;
+    DisplayModePtr	dga_save_mode;
+
+    const xf86CrtcConfigFuncsRec *funcs;
+
+    CreateScreenResourcesProcPtr    CreateScreenResources;
+
+    CloseScreenProcPtr		    CloseScreen;
+
+    /* Cursor information */
+    xf86CursorInfoPtr	cursor_info;
+    CursorPtr		cursor;
+    CARD8		*cursor_image;
+    Bool		cursor_on;
+    CARD32		cursor_fg, cursor_bg;
+
+    /**
+     * Options parsed from the related device section
+     */
+    OptionInfoPtr	options;
+
+    Bool		debug_modes;
+
+    /* wrap screen BlockHandler for rotation */
+    ScreenBlockHandlerProcPtr	BlockHandler;
+
+    /* callback when crtc configuration changes */
+    xf86_crtc_notify_proc_ptr  xf86_crtc_notify;
+
+} xf86CrtcConfigRec, *xf86CrtcConfigPtr;
+
+extern _X_EXPORT int xf86CrtcConfigPrivateIndex;
+
+#define XF86_CRTC_CONFIG_PTR(p)	((xf86CrtcConfigPtr) ((p)->privates[xf86CrtcConfigPrivateIndex].ptr))
+
+static _X_INLINE xf86OutputPtr
+xf86CompatOutput(ScrnInfoPtr pScrn)
+{
+    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
+    return config->output[config->compat_output];
+}
+
+static _X_INLINE xf86CrtcPtr
+xf86CompatCrtc(ScrnInfoPtr pScrn)
+{
+    xf86OutputPtr compat_output = xf86CompatOutput(pScrn);
+    if (!compat_output)
+	return NULL;
+    return compat_output->crtc;
+}
+
+static _X_INLINE RRCrtcPtr
+xf86CompatRRCrtc(ScrnInfoPtr pScrn)
+{
+    xf86CrtcPtr	compat_crtc = xf86CompatCrtc(pScrn);
+    if (!compat_crtc)
+	return NULL;
+    return compat_crtc->randr_crtc;
+}
+
+
+/*
+ * Initialize xf86CrtcConfig structure
+ */
+
+extern _X_EXPORT void
+xf86CrtcConfigInit (ScrnInfoPtr				scrn,
+		    const xf86CrtcConfigFuncsRec	*funcs);
+
+extern _X_EXPORT void
+xf86CrtcSetSizeRange (ScrnInfoPtr scrn,
+		      int minWidth, int minHeight,
+		      int maxWidth, int maxHeight);
+
+/*
+ * Crtc functions
+ */
+extern _X_EXPORT xf86CrtcPtr
+xf86CrtcCreate (ScrnInfoPtr		scrn,
+		const xf86CrtcFuncsRec	*funcs);
+
+extern _X_EXPORT void
+xf86CrtcDestroy (xf86CrtcPtr		crtc);
+
+
+/**
+ * Sets the given video mode on the given crtc
+ */
+
+extern _X_EXPORT Bool
+xf86CrtcSetModeTransform (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation,
+			  RRTransformPtr transform, int x, int y);
+
+extern _X_EXPORT Bool
+xf86CrtcSetMode (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation,
+		 int x, int y);
+
+extern _X_EXPORT void
+xf86CrtcSetOrigin (xf86CrtcPtr crtc, int x, int y);
+
+/*
+ * Assign crtc rotation during mode set
+ */
+extern _X_EXPORT Bool
+xf86CrtcRotate (xf86CrtcPtr crtc);
+
+/*
+ * Clean up any rotation data, used when a crtc is turned off
+ * as well as when rotation is disabled.
+ */
+extern _X_EXPORT void
+xf86RotateDestroy (xf86CrtcPtr crtc);
+
+/*
+ * free shadow memory allocated for all crtcs
+ */
+extern _X_EXPORT void
+xf86RotateFreeShadow(ScrnInfoPtr pScrn);
+
+/*
+ * Clean up rotation during CloseScreen
+ */
+extern _X_EXPORT void
+xf86RotateCloseScreen (ScreenPtr pScreen);
+
+/**
+ * Return whether any output is assigned to the crtc
+ */
+extern _X_EXPORT Bool
+xf86CrtcInUse (xf86CrtcPtr crtc);
+
+/*
+ * Output functions
+ */
+extern _X_EXPORT xf86OutputPtr
+xf86OutputCreate (ScrnInfoPtr		    scrn,
+		  const xf86OutputFuncsRec  *funcs,
+		  const char		    *name);
+
+extern _X_EXPORT void
+xf86OutputUseScreenMonitor (xf86OutputPtr output, Bool use_screen_monitor);
+
+extern _X_EXPORT Bool
+xf86OutputRename (xf86OutputPtr output, const char *name);
+
+extern _X_EXPORT void
+xf86OutputDestroy (xf86OutputPtr	output);
+
+extern _X_EXPORT void
+xf86ProbeOutputModes (ScrnInfoPtr pScrn, int maxX, int maxY);
+
+extern _X_EXPORT void
+xf86SetScrnInfoModes (ScrnInfoPtr pScrn);
+
+#ifdef RANDR_13_INTERFACE
+# define ScreenInitRetType	int
+#else
+# define ScreenInitRetType	Bool
+#endif
+
+extern _X_EXPORT ScreenInitRetType
+xf86CrtcScreenInit (ScreenPtr pScreen);
+
+extern _X_EXPORT Bool
+xf86InitialConfiguration (ScrnInfoPtr pScrn, Bool canGrow);
+
+extern _X_EXPORT void
+xf86DPMSSet(ScrnInfoPtr pScrn, int PowerManagementMode, int flags);
+    
+extern _X_EXPORT Bool
+xf86SaveScreen(ScreenPtr pScreen, int mode);
+
+extern _X_EXPORT void
+xf86DisableUnusedFunctions(ScrnInfoPtr pScrn);
+
+extern _X_EXPORT DisplayModePtr
+xf86OutputFindClosestMode (xf86OutputPtr output, DisplayModePtr desired);
+    
+extern _X_EXPORT Bool
+xf86SetSingleMode (ScrnInfoPtr pScrn, DisplayModePtr desired, Rotation rotation);
+
+/**
+ * Set the EDID information for the specified output
+ */
+extern _X_EXPORT void
+xf86OutputSetEDID (xf86OutputPtr output, xf86MonPtr edid_mon);
+
+/**
+ * Return the list of modes supported by the EDID information
+ * stored in 'output'
+ */
+extern _X_EXPORT DisplayModePtr
+xf86OutputGetEDIDModes (xf86OutputPtr output);
+
+extern _X_EXPORT xf86MonPtr
+xf86OutputGetEDID (xf86OutputPtr output, I2CBusPtr pDDCBus);
+
+/**
+ * Initialize dga for this screen
+ */
+
+#ifdef XFreeXDGA
+extern _X_EXPORT Bool
+xf86DiDGAInit (ScreenPtr pScreen, unsigned long dga_address);
+
+/* this is the real function, used only internally */
+_X_INTERNAL Bool
+_xf86_di_dga_init_internal (ScreenPtr pScreen);
+
+/**
+ * Re-initialize dga for this screen (as when the set of modes changes)
+ */
+
+extern _X_EXPORT Bool
+xf86DiDGAReInit (ScreenPtr pScreen);
+#endif
+
+/* This is the real function, used only internally */
+_X_INTERNAL Bool
+_xf86_di_dga_reinit_internal (ScreenPtr pScreen);
+
+/*
+ * Set the subpixel order reported for the screen using
+ * the information from the outputs
+ */
+
+extern _X_EXPORT void
+xf86CrtcSetScreenSubpixelOrder (ScreenPtr pScreen);
+
+/*
+ * Get a standard string name for a connector type 
+ */
+extern _X_EXPORT char *
+xf86ConnectorGetName(xf86ConnectorType connector);
+
+/*
+ * Using the desired mode information in each crtc, set
+ * modes (used in EnterVT functions, or at server startup)
+ */
+
+extern _X_EXPORT Bool
+xf86SetDesiredModes (ScrnInfoPtr pScrn);
+
+/**
+ * Initialize the CRTC-based cursor code. CRTC function vectors must
+ * contain relevant cursor setting functions.
+ *
+ * Driver should call this from ScreenInit function
+ */
+extern _X_EXPORT Bool
+xf86_cursors_init (ScreenPtr screen, int max_width, int max_height, int flags);
+
+/**
+ * Called when anything on the screen is reconfigured.
+ *
+ * Reloads cursor images as needed, then adjusts cursor positions.
+ * 
+ * Driver should call this from crtc commit function.
+ */
+extern _X_EXPORT void
+xf86_reload_cursors (ScreenPtr screen);
+
+/**
+ * Called from EnterVT to turn the cursors back on
+ */
+extern _X_EXPORT void
+xf86_show_cursors (ScrnInfoPtr scrn);
+
+/**
+ * Called by the driver to turn cursors off
+ */
+extern _X_EXPORT void
+xf86_hide_cursors (ScrnInfoPtr scrn);
+
+/**
+ * Clean up CRTC-based cursor code. Driver must call this at CloseScreen time.
+ */
+extern _X_EXPORT void
+xf86_cursors_fini (ScreenPtr screen);
+
+/*
+ * For overlay video, compute the relevant CRTC and
+ * clip video to that.
+ * wraps xf86XVClipVideoHelper()
+ */
+
+extern _X_EXPORT Bool
+xf86_crtc_clip_video_helper(ScrnInfoPtr pScrn,
+			    xf86CrtcPtr *crtc_ret,
+			    xf86CrtcPtr desired_crtc,
+			    BoxPtr      dst,
+			    INT32	*xa,
+			    INT32	*xb,
+			    INT32	*ya,
+			    INT32	*yb,
+			    RegionPtr   reg,
+			    INT32	width,
+			    INT32	height);
+    
+extern _X_EXPORT xf86_crtc_notify_proc_ptr
+xf86_wrap_crtc_notify (ScreenPtr pScreen, xf86_crtc_notify_proc_ptr new);
+
+extern _X_EXPORT void
+xf86_unwrap_crtc_notify(ScreenPtr pScreen, xf86_crtc_notify_proc_ptr old);
+
+extern _X_EXPORT void
+xf86_crtc_notify(ScreenPtr pScreen);
+
+/**
+ * Gamma
+ */
+
+extern _X_EXPORT Bool
+xf86_crtc_supports_gamma(ScrnInfoPtr pScrn);
+
+#endif /* _XF86CRTC_H_ */
diff --git a/xorg-server/hw/xfree86/modes/xf86Cursors.c b/xorg-server/hw/xfree86/modes/xf86Cursors.c
index 5562f29cc..066744744 100644
--- a/xorg-server/hw/xfree86/modes/xf86Cursors.c
+++ b/xorg-server/hw/xfree86/modes/xf86Cursors.c
@@ -1,688 +1,688 @@
-/*

- * Copyright © 2007 Keith Packard

- * Copyright © 2010 Aaron Plattner

- *

- * 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 <stddef.h>

-#include <string.h>

-#include <stdio.h>

-

-#include "xf86.h"

-#include "xf86DDC.h"

-#include "xf86Crtc.h"

-#include "xf86Modes.h"

-#include "xf86RandR12.h"

-#include "xf86CursorPriv.h"

-#include "X11/extensions/render.h"

-#include "X11/extensions/dpmsconst.h"

-#include "X11/Xatom.h"

-#include "picturestr.h"

-#include "cursorstr.h"

-#include "inputstr.h"

-

-/*

- * Given a screen coordinate, rotate back to a cursor source coordinate

- */

-static void

-xf86_crtc_rotate_coord (Rotation    rotation,

-			int	    width,

-			int	    height,

-			int	    x_dst,

-			int	    y_dst,

-			int	    *x_src,

-			int	    *y_src)

-{

-    int t;

-    

-    switch (rotation & 0xf) {

-    case RR_Rotate_0:

-	break;

-    case RR_Rotate_90:

-	t = x_dst;

-	x_dst = height - y_dst - 1;

-	y_dst = t;

-	break;

-    case RR_Rotate_180:

-	x_dst = width - x_dst - 1;

-	y_dst = height - y_dst - 1;

-	break;

-    case RR_Rotate_270:

-	t = x_dst;

-	x_dst = y_dst;

-	y_dst = width - t - 1;

-	break;

-    }

-    if (rotation & RR_Reflect_X)

-	x_dst = width - x_dst - 1;

-    if (rotation & RR_Reflect_Y)

-	y_dst = height - y_dst - 1;

-    *x_src = x_dst;

-    *y_src = y_dst;

-}

-

-/*

- * Given a cursor source  coordinate, rotate to a screen coordinate

- */

-static void

-xf86_crtc_rotate_coord_back (Rotation    rotation,

-			     int	    width,

-			     int	    height,

-			     int	    x_dst,

-			     int	    y_dst,

-			     int	    *x_src,

-			     int	    *y_src)

-{

-    int t;

-    

-    if (rotation & RR_Reflect_X)

-	x_dst = width - x_dst - 1;

-    if (rotation & RR_Reflect_Y)

-	y_dst = height - y_dst - 1;

-

-    switch (rotation & 0xf) {

-    case RR_Rotate_0:

-	break;

-    case RR_Rotate_90:

-	t = x_dst;

-	x_dst = y_dst;

-	y_dst = width - t - 1;

-	break;

-    case RR_Rotate_180:

-	x_dst = width - x_dst - 1;

-	y_dst = height - y_dst - 1;

-	break;

-    case RR_Rotate_270:

-	t = x_dst;

-	x_dst = height - y_dst - 1;

-	y_dst = t;

-	break;

-    }

-    *x_src = x_dst;

-    *y_src = y_dst;

-}

-

-struct cursor_bit {

-    CARD8 *byte;

-    char bitpos;

-};

-

-/*

- * Convert an x coordinate to a position within the cursor bitmap

- */

-static struct cursor_bit

-cursor_bitpos (CARD8 *image, xf86CursorInfoPtr cursor_info, int x, int y,

-	       Bool mask)

-{

-    const int flags = cursor_info->Flags;

-    const Bool interleaved =

-	!!(flags & (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_1 |

-		    HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_8 |

-		    HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_16 |

-		    HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_32 |

-		    HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64));

-    const int width = cursor_info->MaxWidth;

-    const int height = cursor_info->MaxHeight;

-    const int stride = interleaved ? width / 4 : width / 8;

-

-    struct cursor_bit ret;

-

-    image += y * stride;

-

-    if (flags & HARDWARE_CURSOR_SWAP_SOURCE_AND_MASK)

-	mask = !mask;

-    if (flags & HARDWARE_CURSOR_NIBBLE_SWAPPED)

-	x = (x & ~3) | (3 - (x & 3));

-    if (((flags & HARDWARE_CURSOR_BIT_ORDER_MSBFIRST) == 0) ==

-	(X_BYTE_ORDER == X_BIG_ENDIAN))

-	x = (x & ~7) | (7 - (x & 7));

-    if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_1)

-	x = (x << 1) + mask;

-    else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_8)

-	x = ((x & ~7) << 1) | (mask << 3) | (x & 7);

-    else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_16)

-	x = ((x & ~15) << 1) | (mask << 4) | (x & 15);

-    else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_32)

-	x = ((x & ~31) << 1) | (mask << 5) | (x & 31);

-    else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64)

-	x = ((x & ~63) << 1) | (mask << 6) | (x & 63);

-    else if (mask)

-	image += stride * height;

-

-    ret.byte = image + (x / 8);

-    ret.bitpos = x & 7;

-

-    return ret;

-}

-

-/*

- * Fetch one bit from a cursor bitmap

- */

-static CARD8

-get_bit (CARD8 *image, xf86CursorInfoPtr cursor_info, int x, int y, Bool mask)

-{

-    struct cursor_bit bit = cursor_bitpos(image, cursor_info, x, y, mask);

-    return (*bit.byte >> bit.bitpos) & 1;

-}

-

-/*

- * Set one bit in a cursor bitmap

- */

-static void

-set_bit (CARD8 *image, xf86CursorInfoPtr cursor_info, int x, int y, Bool mask)

-{

-    struct cursor_bit bit = cursor_bitpos(image, cursor_info, x, y, mask);

-    *bit.byte |= 1 << bit.bitpos;

-}

-    

-/*

- * Load a two color cursor into a driver that supports only ARGB cursors

- */

-static void

-xf86_crtc_convert_cursor_to_argb (xf86CrtcPtr crtc, unsigned char *src)

-{

-    ScrnInfoPtr		scrn = crtc->scrn;

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);

-    xf86CursorInfoPtr	cursor_info = xf86_config->cursor_info;

-    CARD32		*cursor_image = (CARD32 *) xf86_config->cursor_image;

-    int			x, y;

-    int			xin, yin;

-    int			flags = cursor_info->Flags;

-    CARD32		bits;

-

-#ifdef ARGB_CURSOR

-    crtc->cursor_argb = FALSE;

-#endif

-

-    for (y = 0; y < cursor_info->MaxHeight; y++)

-	for (x = 0; x < cursor_info->MaxWidth; x++) 

-	{

-	    xf86_crtc_rotate_coord (crtc->rotation,

-				    cursor_info->MaxWidth,

-				    cursor_info->MaxHeight,

-				    x, y, &xin, &yin);

-	    if (get_bit (src, cursor_info, xin, yin, TRUE) ==

-		((flags & HARDWARE_CURSOR_INVERT_MASK) == 0))

-	    {

-		if (get_bit (src, cursor_info, xin, yin, FALSE))

-		    bits = xf86_config->cursor_fg;

-		else

-		    bits = xf86_config->cursor_bg;

-	    }

-	    else

-		bits = 0;

-	    cursor_image[y * cursor_info->MaxWidth + x] = bits;

-	}

-    crtc->funcs->load_cursor_argb (crtc, cursor_image);

-}

-

-/*

- * Set the colors for a two-color cursor (ignore for ARGB cursors)

- */

-static void

-xf86_set_cursor_colors (ScrnInfoPtr scrn, int bg, int fg)

-{

-    ScreenPtr		screen = scrn->pScreen;

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);

-    CursorPtr		cursor = xf86_config->cursor;

-    int			c;

-    CARD8		*bits = cursor ?

-        dixLookupPrivate(&cursor->devPrivates, CursorScreenKey(screen))

-      : NULL;

-

-    /* Save ARGB versions of these colors */

-    xf86_config->cursor_fg = (CARD32) fg | 0xff000000;

-    xf86_config->cursor_bg = (CARD32) bg | 0xff000000;

-    

-    for (c = 0; c < xf86_config->num_crtc; c++)

-    {

-	xf86CrtcPtr crtc = xf86_config->crtc[c];

-

-	if (crtc->enabled && !crtc->cursor_argb)

-	{

-	    if (crtc->funcs->load_cursor_image)

-		crtc->funcs->set_cursor_colors (crtc, bg, fg);

-	    else if (bits)

-		xf86_crtc_convert_cursor_to_argb (crtc, bits);

-	}

-    }

-}

-

-static void

-xf86_crtc_hide_cursor (xf86CrtcPtr crtc)

-{

-    if (crtc->cursor_shown)

-    {

-	crtc->funcs->hide_cursor (crtc);

-	crtc->cursor_shown = FALSE;

-    }

-}

-

-void

-xf86_hide_cursors (ScrnInfoPtr scrn)

-{

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);

-    int			c;

-

-    xf86_config->cursor_on = FALSE;

-    for (c = 0; c < xf86_config->num_crtc; c++)

-    {

-	xf86CrtcPtr crtc = xf86_config->crtc[c];

-

-	if (crtc->enabled)

-	    xf86_crtc_hide_cursor (crtc);

-    }

-}

-    

-static void

-xf86_crtc_show_cursor (xf86CrtcPtr crtc)

-{

-    if (!crtc->cursor_shown && crtc->cursor_in_range)

-    {

-	crtc->funcs->show_cursor (crtc);

-	crtc->cursor_shown = TRUE;

-    }

-}

-

-void

-xf86_show_cursors (ScrnInfoPtr scrn)

-{

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);

-    int			c;

-

-    xf86_config->cursor_on = TRUE;

-    for (c = 0; c < xf86_config->num_crtc; c++)

-    {

-	xf86CrtcPtr crtc = xf86_config->crtc[c];

-

-	if (crtc->enabled)

-	    xf86_crtc_show_cursor (crtc);

-    }

-}

-    

-static void

-xf86_crtc_set_cursor_position (xf86CrtcPtr crtc, int x, int y)

-{

-    ScrnInfoPtr		scrn = crtc->scrn;

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);

-    xf86CursorInfoPtr	cursor_info = xf86_config->cursor_info;

-    DisplayModePtr	mode = &crtc->mode;

-    Bool		in_range;

-    int			dx, dy;

-

-    /*

-     * Transform position of cursor on screen

-     */

-    if (crtc->transform_in_use)

-    {

-	ScreenPtr	screen = scrn->pScreen;

-	xf86CursorScreenPtr ScreenPriv =

-	    (xf86CursorScreenPtr)dixLookupPrivate(&screen->devPrivates,

-						  xf86CursorScreenKey);

-	struct pict_f_vector   v;

-

-	v.v[0] = (x + ScreenPriv->HotX) + 0.5;

-	v.v[1] = (y + ScreenPriv->HotY) + 0.5;

-	v.v[2] = 1;

-	pixman_f_transform_point (&crtc->f_framebuffer_to_crtc, &v);

-	/* cursor will have 0.5 added to it already so floor is sufficent */

-	x = floor (v.v[0]);

-	y = floor (v.v[1]);

-	/*

-	 * Transform position of cursor upper left corner

-	 */

-	xf86_crtc_rotate_coord_back (crtc->rotation,

-				     cursor_info->MaxWidth,

-				     cursor_info->MaxHeight,

-				     ScreenPriv->HotX, ScreenPriv->HotY, &dx, &dy);

-	x -= dx;

-	y -= dy;

-   }

-    else

-    {

-	x -= crtc->x;

-	y -= crtc->y;

-    }

-

-    /*

-     * Disable the cursor when it is outside the viewport

-     */

-    in_range = TRUE;

-    if (x >= mode->HDisplay || y >= mode->VDisplay ||

-	x <= -cursor_info->MaxWidth || y <= -cursor_info->MaxHeight) 

-    {

-	in_range = FALSE;

-	x = 0;

-	y = 0;

-    }

-

-    crtc->cursor_in_range = in_range;

-    

-    if (in_range)

-    {

-	crtc->funcs->set_cursor_position (crtc, x, y);

-	xf86_crtc_show_cursor (crtc);

-    }

-    else

-	xf86_crtc_hide_cursor (crtc);

-}

-

-static void

-xf86_set_cursor_position (ScrnInfoPtr scrn, int x, int y)

-{

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);

-    int			c;

-

-    /* undo what xf86HWCurs did to the coordinates */

-    x += scrn->frameX0;

-    y += scrn->frameY0;

-    for (c = 0; c < xf86_config->num_crtc; c++)

-    {

-	xf86CrtcPtr crtc = xf86_config->crtc[c];

-

-	if (crtc->enabled)

-	    xf86_crtc_set_cursor_position (crtc, x, y);

-    }

-}

-    

-/*

- * Load a two-color cursor into a crtc, performing rotation as needed

- */

-static void

-xf86_crtc_load_cursor_image (xf86CrtcPtr crtc, CARD8 *src)

-{

-    ScrnInfoPtr		scrn = crtc->scrn;

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);

-    xf86CursorInfoPtr	cursor_info = xf86_config->cursor_info;

-    CARD8		*cursor_image;

-

-#ifdef ARGB_CURSOR

-    crtc->cursor_argb = FALSE;

-#endif

-

-    if (crtc->rotation == RR_Rotate_0)

-	cursor_image = src;

-    else

-    {

-        int x, y;

-    	int xin, yin;

-	int stride = cursor_info->MaxWidth >> 2;

-	

-	cursor_image = xf86_config->cursor_image;

-	memset(cursor_image, 0, cursor_info->MaxHeight * stride);

-	

-        for (y = 0; y < cursor_info->MaxHeight; y++)

-	    for (x = 0; x < cursor_info->MaxWidth; x++) 

-	    {

-		xf86_crtc_rotate_coord (crtc->rotation,

-					cursor_info->MaxWidth,

-					cursor_info->MaxHeight,

-					x, y, &xin, &yin);

-		if (get_bit(src, cursor_info, xin, yin, FALSE))

-		    set_bit(cursor_image, cursor_info, x, y, FALSE);

-		if (get_bit(src, cursor_info, xin, yin, TRUE))

-		    set_bit(cursor_image, cursor_info, x, y, TRUE);

-	    }

-    }

-    crtc->funcs->load_cursor_image (crtc, cursor_image);

-}

-    

-/*

- * Load a cursor image into all active CRTCs

- */

-static void

-xf86_load_cursor_image (ScrnInfoPtr scrn, unsigned char *src)

-{

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);

-    int			c;

-

-    for (c = 0; c < xf86_config->num_crtc; c++)

-    {

-	xf86CrtcPtr crtc = xf86_config->crtc[c];

-

-	if (crtc->enabled)

-	{

-	    if (crtc->funcs->load_cursor_image)

-		xf86_crtc_load_cursor_image (crtc, src);

-	    else if (crtc->funcs->load_cursor_argb)

-		xf86_crtc_convert_cursor_to_argb (crtc, src);

-	}

-    }

-}

-

-static Bool

-xf86_use_hw_cursor (ScreenPtr screen, CursorPtr cursor)

-{

-    ScrnInfoPtr		scrn = xf86Screens[screen->myNum];

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);

-    xf86CursorInfoPtr	cursor_info = xf86_config->cursor_info;

-

-    ++cursor->refcnt;

-    if (xf86_config->cursor)

-	FreeCursor (xf86_config->cursor, None);

-    xf86_config->cursor = cursor;

-

-    if (cursor->bits->width > cursor_info->MaxWidth ||

-	cursor->bits->height> cursor_info->MaxHeight)

-	return FALSE;

-

-    return TRUE;

-}

-

-static Bool

-xf86_use_hw_cursor_argb (ScreenPtr screen, CursorPtr cursor)

-{

-    ScrnInfoPtr		scrn = xf86Screens[screen->myNum];

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);

-    xf86CursorInfoPtr	cursor_info = xf86_config->cursor_info;

-    

-    ++cursor->refcnt;

-    if (xf86_config->cursor)

-	FreeCursor (xf86_config->cursor, None);

-    xf86_config->cursor = cursor;

-    

-    /* Make sure ARGB support is available */

-    if ((cursor_info->Flags & HARDWARE_CURSOR_ARGB) == 0)

-	return FALSE;

-    

-    if (cursor->bits->width > cursor_info->MaxWidth ||

-	cursor->bits->height> cursor_info->MaxHeight)

-	return FALSE;

-

-    return TRUE;

-}

-

-static void

-xf86_crtc_load_cursor_argb (xf86CrtcPtr crtc, CursorPtr cursor)

-{

-    ScrnInfoPtr		scrn = crtc->scrn;

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);

-    xf86CursorInfoPtr	cursor_info = xf86_config->cursor_info;

-    CARD32		*cursor_image = (CARD32 *) xf86_config->cursor_image;

-    CARD32		*cursor_source = (CARD32 *) cursor->bits->argb;

-    int			x, y;

-    int			xin, yin;

-    CARD32		bits;

-    int			source_width = cursor->bits->width;

-    int			source_height = cursor->bits->height;

-    int			image_width = cursor_info->MaxWidth;

-    int			image_height = cursor_info->MaxHeight;

-    

-    for (y = 0; y < image_height; y++)

-	for (x = 0; x < image_width; x++)

-	{

-	    xf86_crtc_rotate_coord (crtc->rotation, image_width, image_height,

-				    x, y, &xin, &yin);

-	    if (xin < source_width && yin < source_height)

-		bits = cursor_source[yin * source_width + xin];

-	    else

-		bits = 0;

-	    cursor_image[y * image_width + x] = bits;

-	}

-    

-    crtc->funcs->load_cursor_argb (crtc, cursor_image);

-}

-

-static void

-xf86_load_cursor_argb (ScrnInfoPtr scrn, CursorPtr cursor)

-{

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);

-    int			c;

-

-    for (c = 0; c < xf86_config->num_crtc; c++)

-    {

-	xf86CrtcPtr crtc = xf86_config->crtc[c];

-

-	if (crtc->enabled)

-	    xf86_crtc_load_cursor_argb (crtc, cursor);

-    }

-}

-

-Bool

-xf86_cursors_init (ScreenPtr screen, int max_width, int max_height, int flags)

-{

-    ScrnInfoPtr		scrn = xf86Screens[screen->myNum];

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);

-    xf86CursorInfoPtr	cursor_info;

-

-    cursor_info = xf86CreateCursorInfoRec();

-    if (!cursor_info)

-	return FALSE;

-

-    xf86_config->cursor_image = malloc(max_width * max_height * 4);

-

-    if (!xf86_config->cursor_image)

-    {

-	xf86DestroyCursorInfoRec (cursor_info);

-	return FALSE;

-    }

-	

-    xf86_config->cursor_info = cursor_info;

-

-    cursor_info->MaxWidth = max_width;

-    cursor_info->MaxHeight = max_height;

-    cursor_info->Flags = flags;

-

-    cursor_info->SetCursorColors = xf86_set_cursor_colors;

-    cursor_info->SetCursorPosition = xf86_set_cursor_position;

-    cursor_info->LoadCursorImage = xf86_load_cursor_image;

-    cursor_info->HideCursor = xf86_hide_cursors;

-    cursor_info->ShowCursor = xf86_show_cursors;

-    cursor_info->UseHWCursor = xf86_use_hw_cursor;

-#ifdef ARGB_CURSOR

-    if (flags & HARDWARE_CURSOR_ARGB)

-    {

-	cursor_info->UseHWCursorARGB = xf86_use_hw_cursor_argb;

-	cursor_info->LoadCursorARGB = xf86_load_cursor_argb;

-    }

-#endif

-    

-    xf86_config->cursor = NULL;

-    xf86_hide_cursors (scrn);

-    

-    return xf86InitCursor (screen, cursor_info);

-}

-

-/**

- * Called when anything on the screen is reconfigured.

- *

- * Reloads cursor images as needed, then adjusts cursor positions

- */

-

-void

-xf86_reload_cursors (ScreenPtr screen)

-{

-    ScrnInfoPtr		scrn;

-    xf86CrtcConfigPtr   xf86_config;

-    xf86CursorInfoPtr   cursor_info;

-    CursorPtr		cursor;

-    int			x, y;

-    xf86CursorScreenPtr cursor_screen_priv;

-    

-    /* initial mode setting will not have set a screen yet.

-       May be called before the devices are initialised.

-     */

-    if (!screen || !inputInfo.pointer)

-	return;

-    cursor_screen_priv = dixLookupPrivate(&screen->devPrivates,

-					  xf86CursorScreenKey);

-    /* return if HW cursor is inactive, to avoid displaying two cursors */

-    if (!cursor_screen_priv || !cursor_screen_priv->isUp)

-	return;

-

-    scrn = xf86Screens[screen->myNum];

-    xf86_config = XF86_CRTC_CONFIG_PTR(scrn);

-

-    /* make sure the cursor code has been initialized */

-    cursor_info = xf86_config->cursor_info;

-    if (!cursor_info)

-	return;

-

-    cursor = xf86_config->cursor;

-    GetSpritePosition (inputInfo.pointer, &x, &y);

-    if (!(cursor_info->Flags & HARDWARE_CURSOR_UPDATE_UNHIDDEN))

-	(*cursor_info->HideCursor)(scrn);

-

-    if (cursor)

-    {

-	void *src = dixLookupPrivate(&cursor->devPrivates, CursorScreenKey(screen));

-#ifdef ARGB_CURSOR

-	if (cursor->bits->argb && cursor_info->LoadCursorARGB)

-	    (*cursor_info->LoadCursorARGB) (scrn, cursor);

-	else if (src)

-#endif

-	    (*cursor_info->LoadCursorImage)(scrn, src);

-

-	x += scrn->frameX0 + cursor_screen_priv->HotX;

-	y += scrn->frameY0 + cursor_screen_priv->HotY;

-	(*cursor_info->SetCursorPosition)(scrn, x, y);

-    }

-}

-

-/**

- * Clean up CRTC-based cursor code

- */

-void

-xf86_cursors_fini (ScreenPtr screen)

-{

-    ScrnInfoPtr		scrn = xf86Screens[screen->myNum];

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);

-    

-    if (xf86_config->cursor_info)

-    {

-	xf86DestroyCursorInfoRec (xf86_config->cursor_info);

-	xf86_config->cursor_info = NULL;

-    }

-    free(xf86_config->cursor_image);

-    xf86_config->cursor_image = NULL;

-    if (xf86_config->cursor)

-    {

-	FreeCursor (xf86_config->cursor, None);

-	xf86_config->cursor = NULL;

-    }

-}

+/*
+ * Copyright © 2007 Keith Packard
+ * Copyright © 2010 Aaron Plattner
+ *
+ * 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 <stddef.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "xf86.h"
+#include "xf86DDC.h"
+#include "xf86Crtc.h"
+#include "xf86Modes.h"
+#include "xf86RandR12.h"
+#include "xf86CursorPriv.h"
+#include "X11/extensions/render.h"
+#include "X11/extensions/dpmsconst.h"
+#include "X11/Xatom.h"
+#include "picturestr.h"
+#include "cursorstr.h"
+#include "inputstr.h"
+
+/*
+ * Given a screen coordinate, rotate back to a cursor source coordinate
+ */
+static void
+xf86_crtc_rotate_coord (Rotation    rotation,
+			int	    width,
+			int	    height,
+			int	    x_dst,
+			int	    y_dst,
+			int	    *x_src,
+			int	    *y_src)
+{
+    int t;
+    
+    switch (rotation & 0xf) {
+    case RR_Rotate_0:
+	break;
+    case RR_Rotate_90:
+	t = x_dst;
+	x_dst = height - y_dst - 1;
+	y_dst = t;
+	break;
+    case RR_Rotate_180:
+	x_dst = width - x_dst - 1;
+	y_dst = height - y_dst - 1;
+	break;
+    case RR_Rotate_270:
+	t = x_dst;
+	x_dst = y_dst;
+	y_dst = width - t - 1;
+	break;
+    }
+    if (rotation & RR_Reflect_X)
+	x_dst = width - x_dst - 1;
+    if (rotation & RR_Reflect_Y)
+	y_dst = height - y_dst - 1;
+    *x_src = x_dst;
+    *y_src = y_dst;
+}
+
+/*
+ * Given a cursor source  coordinate, rotate to a screen coordinate
+ */
+static void
+xf86_crtc_rotate_coord_back (Rotation    rotation,
+			     int	    width,
+			     int	    height,
+			     int	    x_dst,
+			     int	    y_dst,
+			     int	    *x_src,
+			     int	    *y_src)
+{
+    int t;
+    
+    if (rotation & RR_Reflect_X)
+	x_dst = width - x_dst - 1;
+    if (rotation & RR_Reflect_Y)
+	y_dst = height - y_dst - 1;
+
+    switch (rotation & 0xf) {
+    case RR_Rotate_0:
+	break;
+    case RR_Rotate_90:
+	t = x_dst;
+	x_dst = y_dst;
+	y_dst = width - t - 1;
+	break;
+    case RR_Rotate_180:
+	x_dst = width - x_dst - 1;
+	y_dst = height - y_dst - 1;
+	break;
+    case RR_Rotate_270:
+	t = x_dst;
+	x_dst = height - y_dst - 1;
+	y_dst = t;
+	break;
+    }
+    *x_src = x_dst;
+    *y_src = y_dst;
+}
+
+struct cursor_bit {
+    CARD8 *byte;
+    char bitpos;
+};
+
+/*
+ * Convert an x coordinate to a position within the cursor bitmap
+ */
+static struct cursor_bit
+cursor_bitpos (CARD8 *image, xf86CursorInfoPtr cursor_info, int x, int y,
+	       Bool mask)
+{
+    const int flags = cursor_info->Flags;
+    const Bool interleaved =
+	!!(flags & (HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_1 |
+		    HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_8 |
+		    HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_16 |
+		    HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_32 |
+		    HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64));
+    const int width = cursor_info->MaxWidth;
+    const int height = cursor_info->MaxHeight;
+    const int stride = interleaved ? width / 4 : width / 8;
+
+    struct cursor_bit ret;
+
+    image += y * stride;
+
+    if (flags & HARDWARE_CURSOR_SWAP_SOURCE_AND_MASK)
+	mask = !mask;
+    if (flags & HARDWARE_CURSOR_NIBBLE_SWAPPED)
+	x = (x & ~3) | (3 - (x & 3));
+    if (((flags & HARDWARE_CURSOR_BIT_ORDER_MSBFIRST) == 0) ==
+	(X_BYTE_ORDER == X_BIG_ENDIAN))
+	x = (x & ~7) | (7 - (x & 7));
+    if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_1)
+	x = (x << 1) + mask;
+    else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_8)
+	x = ((x & ~7) << 1) | (mask << 3) | (x & 7);
+    else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_16)
+	x = ((x & ~15) << 1) | (mask << 4) | (x & 15);
+    else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_32)
+	x = ((x & ~31) << 1) | (mask << 5) | (x & 31);
+    else if (flags & HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_64)
+	x = ((x & ~63) << 1) | (mask << 6) | (x & 63);
+    else if (mask)
+	image += stride * height;
+
+    ret.byte = image + (x / 8);
+    ret.bitpos = x & 7;
+
+    return ret;
+}
+
+/*
+ * Fetch one bit from a cursor bitmap
+ */
+static CARD8
+get_bit (CARD8 *image, xf86CursorInfoPtr cursor_info, int x, int y, Bool mask)
+{
+    struct cursor_bit bit = cursor_bitpos(image, cursor_info, x, y, mask);
+    return (*bit.byte >> bit.bitpos) & 1;
+}
+
+/*
+ * Set one bit in a cursor bitmap
+ */
+static void
+set_bit (CARD8 *image, xf86CursorInfoPtr cursor_info, int x, int y, Bool mask)
+{
+    struct cursor_bit bit = cursor_bitpos(image, cursor_info, x, y, mask);
+    *bit.byte |= 1 << bit.bitpos;
+}
+    
+/*
+ * Load a two color cursor into a driver that supports only ARGB cursors
+ */
+static void
+xf86_crtc_convert_cursor_to_argb (xf86CrtcPtr crtc, unsigned char *src)
+{
+    ScrnInfoPtr		scrn = crtc->scrn;
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+    xf86CursorInfoPtr	cursor_info = xf86_config->cursor_info;
+    CARD32		*cursor_image = (CARD32 *) xf86_config->cursor_image;
+    int			x, y;
+    int			xin, yin;
+    int			flags = cursor_info->Flags;
+    CARD32		bits;
+
+#ifdef ARGB_CURSOR
+    crtc->cursor_argb = FALSE;
+#endif
+
+    for (y = 0; y < cursor_info->MaxHeight; y++)
+	for (x = 0; x < cursor_info->MaxWidth; x++) 
+	{
+	    xf86_crtc_rotate_coord (crtc->rotation,
+				    cursor_info->MaxWidth,
+				    cursor_info->MaxHeight,
+				    x, y, &xin, &yin);
+	    if (get_bit (src, cursor_info, xin, yin, TRUE) ==
+		((flags & HARDWARE_CURSOR_INVERT_MASK) == 0))
+	    {
+		if (get_bit (src, cursor_info, xin, yin, FALSE))
+		    bits = xf86_config->cursor_fg;
+		else
+		    bits = xf86_config->cursor_bg;
+	    }
+	    else
+		bits = 0;
+	    cursor_image[y * cursor_info->MaxWidth + x] = bits;
+	}
+    crtc->funcs->load_cursor_argb (crtc, cursor_image);
+}
+
+/*
+ * Set the colors for a two-color cursor (ignore for ARGB cursors)
+ */
+static void
+xf86_set_cursor_colors (ScrnInfoPtr scrn, int bg, int fg)
+{
+    ScreenPtr		screen = scrn->pScreen;
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+    CursorPtr		cursor = xf86_config->cursor;
+    int			c;
+    CARD8		*bits = cursor ?
+        dixLookupPrivate(&cursor->devPrivates, CursorScreenKey(screen))
+      : NULL;
+
+    /* Save ARGB versions of these colors */
+    xf86_config->cursor_fg = (CARD32) fg | 0xff000000;
+    xf86_config->cursor_bg = (CARD32) bg | 0xff000000;
+    
+    for (c = 0; c < xf86_config->num_crtc; c++)
+    {
+	xf86CrtcPtr crtc = xf86_config->crtc[c];
+
+	if (crtc->enabled && !crtc->cursor_argb)
+	{
+	    if (crtc->funcs->load_cursor_image)
+		crtc->funcs->set_cursor_colors (crtc, bg, fg);
+	    else if (bits)
+		xf86_crtc_convert_cursor_to_argb (crtc, bits);
+	}
+    }
+}
+
+static void
+xf86_crtc_hide_cursor (xf86CrtcPtr crtc)
+{
+    if (crtc->cursor_shown)
+    {
+	crtc->funcs->hide_cursor (crtc);
+	crtc->cursor_shown = FALSE;
+    }
+}
+
+void
+xf86_hide_cursors (ScrnInfoPtr scrn)
+{
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+    int			c;
+
+    xf86_config->cursor_on = FALSE;
+    for (c = 0; c < xf86_config->num_crtc; c++)
+    {
+	xf86CrtcPtr crtc = xf86_config->crtc[c];
+
+	if (crtc->enabled)
+	    xf86_crtc_hide_cursor (crtc);
+    }
+}
+    
+static void
+xf86_crtc_show_cursor (xf86CrtcPtr crtc)
+{
+    if (!crtc->cursor_shown && crtc->cursor_in_range)
+    {
+	crtc->funcs->show_cursor (crtc);
+	crtc->cursor_shown = TRUE;
+    }
+}
+
+void
+xf86_show_cursors (ScrnInfoPtr scrn)
+{
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+    int			c;
+
+    xf86_config->cursor_on = TRUE;
+    for (c = 0; c < xf86_config->num_crtc; c++)
+    {
+	xf86CrtcPtr crtc = xf86_config->crtc[c];
+
+	if (crtc->enabled)
+	    xf86_crtc_show_cursor (crtc);
+    }
+}
+    
+static void
+xf86_crtc_set_cursor_position (xf86CrtcPtr crtc, int x, int y)
+{
+    ScrnInfoPtr		scrn = crtc->scrn;
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+    xf86CursorInfoPtr	cursor_info = xf86_config->cursor_info;
+    DisplayModePtr	mode = &crtc->mode;
+    Bool		in_range;
+    int			dx, dy;
+
+    /*
+     * Transform position of cursor on screen
+     */
+    if (crtc->transform_in_use)
+    {
+	ScreenPtr	screen = scrn->pScreen;
+	xf86CursorScreenPtr ScreenPriv =
+	    (xf86CursorScreenPtr)dixLookupPrivate(&screen->devPrivates,
+						  xf86CursorScreenKey);
+	struct pict_f_vector   v;
+
+	v.v[0] = (x + ScreenPriv->HotX) + 0.5;
+	v.v[1] = (y + ScreenPriv->HotY) + 0.5;
+	v.v[2] = 1;
+	pixman_f_transform_point (&crtc->f_framebuffer_to_crtc, &v);
+	/* cursor will have 0.5 added to it already so floor is sufficent */
+	x = floor (v.v[0]);
+	y = floor (v.v[1]);
+	/*
+	 * Transform position of cursor upper left corner
+	 */
+	xf86_crtc_rotate_coord_back (crtc->rotation,
+				     cursor_info->MaxWidth,
+				     cursor_info->MaxHeight,
+				     ScreenPriv->HotX, ScreenPriv->HotY, &dx, &dy);
+	x -= dx;
+	y -= dy;
+   }
+    else
+    {
+	x -= crtc->x;
+	y -= crtc->y;
+    }
+
+    /*
+     * Disable the cursor when it is outside the viewport
+     */
+    in_range = TRUE;
+    if (x >= mode->HDisplay || y >= mode->VDisplay ||
+	x <= -cursor_info->MaxWidth || y <= -cursor_info->MaxHeight) 
+    {
+	in_range = FALSE;
+	x = 0;
+	y = 0;
+    }
+
+    crtc->cursor_in_range = in_range;
+    
+    if (in_range)
+    {
+	crtc->funcs->set_cursor_position (crtc, x, y);
+	xf86_crtc_show_cursor (crtc);
+    }
+    else
+	xf86_crtc_hide_cursor (crtc);
+}
+
+static void
+xf86_set_cursor_position (ScrnInfoPtr scrn, int x, int y)
+{
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+    int			c;
+
+    /* undo what xf86HWCurs did to the coordinates */
+    x += scrn->frameX0;
+    y += scrn->frameY0;
+    for (c = 0; c < xf86_config->num_crtc; c++)
+    {
+	xf86CrtcPtr crtc = xf86_config->crtc[c];
+
+	if (crtc->enabled)
+	    xf86_crtc_set_cursor_position (crtc, x, y);
+    }
+}
+    
+/*
+ * Load a two-color cursor into a crtc, performing rotation as needed
+ */
+static void
+xf86_crtc_load_cursor_image (xf86CrtcPtr crtc, CARD8 *src)
+{
+    ScrnInfoPtr		scrn = crtc->scrn;
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+    xf86CursorInfoPtr	cursor_info = xf86_config->cursor_info;
+    CARD8		*cursor_image;
+
+#ifdef ARGB_CURSOR
+    crtc->cursor_argb = FALSE;
+#endif
+
+    if (crtc->rotation == RR_Rotate_0)
+	cursor_image = src;
+    else
+    {
+        int x, y;
+    	int xin, yin;
+	int stride = cursor_info->MaxWidth >> 2;
+	
+	cursor_image = xf86_config->cursor_image;
+	memset(cursor_image, 0, cursor_info->MaxHeight * stride);
+	
+        for (y = 0; y < cursor_info->MaxHeight; y++)
+	    for (x = 0; x < cursor_info->MaxWidth; x++) 
+	    {
+		xf86_crtc_rotate_coord (crtc->rotation,
+					cursor_info->MaxWidth,
+					cursor_info->MaxHeight,
+					x, y, &xin, &yin);
+		if (get_bit(src, cursor_info, xin, yin, FALSE))
+		    set_bit(cursor_image, cursor_info, x, y, FALSE);
+		if (get_bit(src, cursor_info, xin, yin, TRUE))
+		    set_bit(cursor_image, cursor_info, x, y, TRUE);
+	    }
+    }
+    crtc->funcs->load_cursor_image (crtc, cursor_image);
+}
+    
+/*
+ * Load a cursor image into all active CRTCs
+ */
+static void
+xf86_load_cursor_image (ScrnInfoPtr scrn, unsigned char *src)
+{
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+    int			c;
+
+    for (c = 0; c < xf86_config->num_crtc; c++)
+    {
+	xf86CrtcPtr crtc = xf86_config->crtc[c];
+
+	if (crtc->enabled)
+	{
+	    if (crtc->funcs->load_cursor_image)
+		xf86_crtc_load_cursor_image (crtc, src);
+	    else if (crtc->funcs->load_cursor_argb)
+		xf86_crtc_convert_cursor_to_argb (crtc, src);
+	}
+    }
+}
+
+static Bool
+xf86_use_hw_cursor (ScreenPtr screen, CursorPtr cursor)
+{
+    ScrnInfoPtr		scrn = xf86Screens[screen->myNum];
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+    xf86CursorInfoPtr	cursor_info = xf86_config->cursor_info;
+
+    ++cursor->refcnt;
+    if (xf86_config->cursor)
+	FreeCursor (xf86_config->cursor, None);
+    xf86_config->cursor = cursor;
+
+    if (cursor->bits->width > cursor_info->MaxWidth ||
+	cursor->bits->height> cursor_info->MaxHeight)
+	return FALSE;
+
+    return TRUE;
+}
+
+static Bool
+xf86_use_hw_cursor_argb (ScreenPtr screen, CursorPtr cursor)
+{
+    ScrnInfoPtr		scrn = xf86Screens[screen->myNum];
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+    xf86CursorInfoPtr	cursor_info = xf86_config->cursor_info;
+    
+    ++cursor->refcnt;
+    if (xf86_config->cursor)
+	FreeCursor (xf86_config->cursor, None);
+    xf86_config->cursor = cursor;
+    
+    /* Make sure ARGB support is available */
+    if ((cursor_info->Flags & HARDWARE_CURSOR_ARGB) == 0)
+	return FALSE;
+    
+    if (cursor->bits->width > cursor_info->MaxWidth ||
+	cursor->bits->height> cursor_info->MaxHeight)
+	return FALSE;
+
+    return TRUE;
+}
+
+static void
+xf86_crtc_load_cursor_argb (xf86CrtcPtr crtc, CursorPtr cursor)
+{
+    ScrnInfoPtr		scrn = crtc->scrn;
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+    xf86CursorInfoPtr	cursor_info = xf86_config->cursor_info;
+    CARD32		*cursor_image = (CARD32 *) xf86_config->cursor_image;
+    CARD32		*cursor_source = (CARD32 *) cursor->bits->argb;
+    int			x, y;
+    int			xin, yin;
+    CARD32		bits;
+    int			source_width = cursor->bits->width;
+    int			source_height = cursor->bits->height;
+    int			image_width = cursor_info->MaxWidth;
+    int			image_height = cursor_info->MaxHeight;
+    
+    for (y = 0; y < image_height; y++)
+	for (x = 0; x < image_width; x++)
+	{
+	    xf86_crtc_rotate_coord (crtc->rotation, image_width, image_height,
+				    x, y, &xin, &yin);
+	    if (xin < source_width && yin < source_height)
+		bits = cursor_source[yin * source_width + xin];
+	    else
+		bits = 0;
+	    cursor_image[y * image_width + x] = bits;
+	}
+    
+    crtc->funcs->load_cursor_argb (crtc, cursor_image);
+}
+
+static void
+xf86_load_cursor_argb (ScrnInfoPtr scrn, CursorPtr cursor)
+{
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+    int			c;
+
+    for (c = 0; c < xf86_config->num_crtc; c++)
+    {
+	xf86CrtcPtr crtc = xf86_config->crtc[c];
+
+	if (crtc->enabled)
+	    xf86_crtc_load_cursor_argb (crtc, cursor);
+    }
+}
+
+Bool
+xf86_cursors_init (ScreenPtr screen, int max_width, int max_height, int flags)
+{
+    ScrnInfoPtr		scrn = xf86Screens[screen->myNum];
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+    xf86CursorInfoPtr	cursor_info;
+
+    cursor_info = xf86CreateCursorInfoRec();
+    if (!cursor_info)
+	return FALSE;
+
+    xf86_config->cursor_image = malloc(max_width * max_height * 4);
+
+    if (!xf86_config->cursor_image)
+    {
+	xf86DestroyCursorInfoRec (cursor_info);
+	return FALSE;
+    }
+	
+    xf86_config->cursor_info = cursor_info;
+
+    cursor_info->MaxWidth = max_width;
+    cursor_info->MaxHeight = max_height;
+    cursor_info->Flags = flags;
+
+    cursor_info->SetCursorColors = xf86_set_cursor_colors;
+    cursor_info->SetCursorPosition = xf86_set_cursor_position;
+    cursor_info->LoadCursorImage = xf86_load_cursor_image;
+    cursor_info->HideCursor = xf86_hide_cursors;
+    cursor_info->ShowCursor = xf86_show_cursors;
+    cursor_info->UseHWCursor = xf86_use_hw_cursor;
+#ifdef ARGB_CURSOR
+    if (flags & HARDWARE_CURSOR_ARGB)
+    {
+	cursor_info->UseHWCursorARGB = xf86_use_hw_cursor_argb;
+	cursor_info->LoadCursorARGB = xf86_load_cursor_argb;
+    }
+#endif
+    
+    xf86_config->cursor = NULL;
+    xf86_hide_cursors (scrn);
+    
+    return xf86InitCursor (screen, cursor_info);
+}
+
+/**
+ * Called when anything on the screen is reconfigured.
+ *
+ * Reloads cursor images as needed, then adjusts cursor positions
+ */
+
+void
+xf86_reload_cursors (ScreenPtr screen)
+{
+    ScrnInfoPtr		scrn;
+    xf86CrtcConfigPtr   xf86_config;
+    xf86CursorInfoPtr   cursor_info;
+    CursorPtr		cursor;
+    int			x, y;
+    xf86CursorScreenPtr cursor_screen_priv;
+    
+    /* initial mode setting will not have set a screen yet.
+       May be called before the devices are initialised.
+     */
+    if (!screen || !inputInfo.pointer)
+	return;
+    cursor_screen_priv = dixLookupPrivate(&screen->devPrivates,
+					  xf86CursorScreenKey);
+    /* return if HW cursor is inactive, to avoid displaying two cursors */
+    if (!cursor_screen_priv || !cursor_screen_priv->isUp)
+	return;
+
+    scrn = xf86Screens[screen->myNum];
+    xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+
+    /* make sure the cursor code has been initialized */
+    cursor_info = xf86_config->cursor_info;
+    if (!cursor_info)
+	return;
+
+    cursor = xf86_config->cursor;
+    GetSpritePosition (inputInfo.pointer, &x, &y);
+    if (!(cursor_info->Flags & HARDWARE_CURSOR_UPDATE_UNHIDDEN))
+	(*cursor_info->HideCursor)(scrn);
+
+    if (cursor)
+    {
+	void *src = dixLookupPrivate(&cursor->devPrivates, CursorScreenKey(screen));
+#ifdef ARGB_CURSOR
+	if (cursor->bits->argb && cursor_info->LoadCursorARGB)
+	    (*cursor_info->LoadCursorARGB) (scrn, cursor);
+	else if (src)
+#endif
+	    (*cursor_info->LoadCursorImage)(scrn, src);
+
+	x += scrn->frameX0 + cursor_screen_priv->HotX;
+	y += scrn->frameY0 + cursor_screen_priv->HotY;
+	(*cursor_info->SetCursorPosition)(scrn, x, y);
+    }
+}
+
+/**
+ * Clean up CRTC-based cursor code
+ */
+void
+xf86_cursors_fini (ScreenPtr screen)
+{
+    ScrnInfoPtr		scrn = xf86Screens[screen->myNum];
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+    
+    if (xf86_config->cursor_info)
+    {
+	xf86DestroyCursorInfoRec (xf86_config->cursor_info);
+	xf86_config->cursor_info = NULL;
+    }
+    free(xf86_config->cursor_image);
+    xf86_config->cursor_image = NULL;
+    if (xf86_config->cursor)
+    {
+	FreeCursor (xf86_config->cursor, None);
+	xf86_config->cursor = NULL;
+    }
+}
diff --git a/xorg-server/hw/xfree86/modes/xf86RandR12.c b/xorg-server/hw/xfree86/modes/xf86RandR12.c
index 6d676363b..cb20d1c35 100644
--- a/xorg-server/hw/xfree86/modes/xf86RandR12.c
+++ b/xorg-server/hw/xfree86/modes/xf86RandR12.c
@@ -1,1823 +1,1823 @@
-/*

- * 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 "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;

-

-static DevPrivateKeyRec xf86RandR12KeyRec;

-static DevPrivateKey xf86RandR12Key;

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

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

-

-

-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 = pScreen->root;

-    DisplayModePtr      currentMode = NULL;

-    Bool 		ret = TRUE;

-

-    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;

-    }

-

-    /*

-     * 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			pos[MAXDEVICES][2];

-    Bool		useVirtual = FALSE;

-    int			maxX = 0, maxY = 0;

-    Rotation		oldRotation = randrp->rotation;

-    DeviceIntPtr	dev;

-    Bool		view_adjusted = FALSE;

-

-    randrp->rotation = rotation;

-

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

-    {

-	randrp->virtualX = scrp->virtualX;

-	randrp->virtualY = scrp->virtualY;

-    }

-

-    for (dev = inputInfo.devices; dev; dev = dev->next)

-    {

-	if (!IsMaster(dev) && !IsFloating(dev))

-		continue;

-

-	miPointerGetPosition(dev, &pos[dev->id][0], &pos[dev->id][1]);

-    }

-

-    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

-     * FIXME: duplicated code, see modes/xf86RandR12.c

-     */

-    for (dev = inputInfo.devices; dev; dev = dev->next)

-    {

-	if (!IsMaster(dev) && !IsFloating(dev))

-		continue;

-

-	if (pScreen == miPointerGetScreen(dev)) {

-	    int px = pos[dev->id][0];

-	    int py = pos[dev->id][1];

-

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

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

-

-	    /* Setting the viewpoint makes only sense on one device */

-	    if (!view_adjusted && IsMaster(dev)) {

-		xf86SetViewport(pScreen, px, py);

-		view_adjusted = TRUE;

-	    }

-

-	    (*pScreen->SetCursorPosition) (dev, 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 = pScreen->root;

-    PixmapPtr		pScrnPix;

-    Bool		ret = FALSE;

-    int                 c;

-

-    if (xf86RandR12Key) {

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

-        {

-	    randrp->virtualX = pScrn->virtualX;

-	    randrp->virtualY = pScrn->virtualY;

-        }

-    }

-    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);

-	}

-    }

-

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

-    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 && pScreen->root && 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 (xf86RandR12Key == NULL)

-	return TRUE;

-

-    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;

-

-    xf86RandR12Key = &xf86RandR12KeyRec;

-    if (!dixRegisterPrivateKey(&xf86RandR12KeyRec, PRIVATE_SCREEN, 0))

-	return FALSE;

-

-    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;

-

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

-

-#if RANDR_12_INTERFACE

-    if (!xf86RandR12Init12 (pScreen))

-	return FALSE;

-#endif

-    return TRUE;

-}

-

-void

-xf86RandR12CloseScreen (ScreenPtr pScreen)

-{

-    XF86RandRInfoPtr	randrp;

-

-    if (xf86RandR12Key == NULL)

-	return;

-

-    randrp = XF86RANDRINFO(pScreen);

-#if RANDR_12_INTERFACE

-    xf86Screens[pScreen->myNum]->EnterVT = randrp->orig_EnterVT;

-#endif

-

-    free(randrp);

-}

-

-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 (xf86RandR12Key == NULL)

-	return;

-

-    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 (xf86RandR12Key == NULL)

-	return;

-

-    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 (xf86RandR12Key == NULL)

-	return TRUE;

-

-    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 (xf86RandR12Key == NULL)

-	return;

-

-    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];

-    ScrnInfoPtr	     pScrn = xf86Screens[screen_index];

-    XF86RandRInfoPtr randrp  = XF86RANDRINFO(pScreen);

-    rrScrPrivPtr     rp = rrGetScrPriv(pScreen);

-    Bool	     ret;

-    int              i;

-

-    if (randrp->orig_EnterVT) {

-	pScrn->EnterVT = randrp->orig_EnterVT;

-	ret = pScrn->EnterVT (screen_index, flags);

-	randrp->orig_EnterVT = pScrn->EnterVT;

-	pScrn->EnterVT = xf86RandR12EnterVT;

-	if (!ret)

-	    return FALSE;

-    }

-

-    /* reload gamma */

-    for (i = 0; i < rp->numCrtcs; i++)

-	xf86RandR12CrtcSetGamma(pScreen, rp->crtcs[i]);

-

-    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);

-    int i;

-

-    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;

-    for (i = 0; i < rp->numCrtcs; i++) {

-	xf86RandR12CrtcGetGamma(pScreen, rp->crtcs[i]);

-    }

-    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 "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;
+
+static DevPrivateKeyRec xf86RandR12KeyRec;
+static DevPrivateKey xf86RandR12Key;
+#define XF86RANDRINFO(p) ((XF86RandRInfoPtr) \
+    dixLookupPrivate(&(p)->devPrivates, xf86RandR12Key))
+
+
+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 = pScreen->root;
+    DisplayModePtr      currentMode = NULL;
+    Bool 		ret = TRUE;
+
+    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;
+    }
+
+    /*
+     * 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			pos[MAXDEVICES][2];
+    Bool		useVirtual = FALSE;
+    int			maxX = 0, maxY = 0;
+    Rotation		oldRotation = randrp->rotation;
+    DeviceIntPtr	dev;
+    Bool		view_adjusted = FALSE;
+
+    randrp->rotation = rotation;
+
+    if (randrp->virtualX == -1 || randrp->virtualY == -1)
+    {
+	randrp->virtualX = scrp->virtualX;
+	randrp->virtualY = scrp->virtualY;
+    }
+
+    for (dev = inputInfo.devices; dev; dev = dev->next)
+    {
+	if (!IsMaster(dev) && !IsFloating(dev))
+		continue;
+
+	miPointerGetPosition(dev, &pos[dev->id][0], &pos[dev->id][1]);
+    }
+
+    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
+     * FIXME: duplicated code, see modes/xf86RandR12.c
+     */
+    for (dev = inputInfo.devices; dev; dev = dev->next)
+    {
+	if (!IsMaster(dev) && !IsFloating(dev))
+		continue;
+
+	if (pScreen == miPointerGetScreen(dev)) {
+	    int px = pos[dev->id][0];
+	    int py = pos[dev->id][1];
+
+	    px = (px >= pScreen->width ? (pScreen->width - 1) : px);
+	    py = (py >= pScreen->height ? (pScreen->height - 1) : py);
+
+	    /* Setting the viewpoint makes only sense on one device */
+	    if (!view_adjusted && IsMaster(dev)) {
+		xf86SetViewport(pScreen, px, py);
+		view_adjusted = TRUE;
+	    }
+
+	    (*pScreen->SetCursorPosition) (dev, 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 = pScreen->root;
+    PixmapPtr		pScrnPix;
+    Bool		ret = FALSE;
+    int                 c;
+
+    if (xf86RandR12Key) {
+        if (randrp->virtualX == -1 || randrp->virtualY == -1)
+        {
+	    randrp->virtualX = pScrn->virtualX;
+	    randrp->virtualY = pScrn->virtualY;
+        }
+    }
+    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);
+	}
+    }
+
+    pScrnPix = (*pScreen->GetScreenPixmap)(pScreen);
+    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 && pScreen->root && 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 (xf86RandR12Key == NULL)
+	return TRUE;
+
+    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;
+
+    xf86RandR12Key = &xf86RandR12KeyRec;
+    if (!dixRegisterPrivateKey(&xf86RandR12KeyRec, PRIVATE_SCREEN, 0))
+	return FALSE;
+
+    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;
+
+    dixSetPrivate(&pScreen->devPrivates, xf86RandR12Key, randrp);
+
+#if RANDR_12_INTERFACE
+    if (!xf86RandR12Init12 (pScreen))
+	return FALSE;
+#endif
+    return TRUE;
+}
+
+void
+xf86RandR12CloseScreen (ScreenPtr pScreen)
+{
+    XF86RandRInfoPtr	randrp;
+
+    if (xf86RandR12Key == NULL)
+	return;
+
+    randrp = XF86RANDRINFO(pScreen);
+#if RANDR_12_INTERFACE
+    xf86Screens[pScreen->myNum]->EnterVT = randrp->orig_EnterVT;
+#endif
+
+    free(randrp);
+}
+
+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 (xf86RandR12Key == NULL)
+	return;
+
+    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 (xf86RandR12Key == NULL)
+	return;
+
+    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 (xf86RandR12Key == NULL)
+	return TRUE;
+
+    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 (xf86RandR12Key == NULL)
+	return;
+
+    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];
+    ScrnInfoPtr	     pScrn = xf86Screens[screen_index];
+    XF86RandRInfoPtr randrp  = XF86RANDRINFO(pScreen);
+    rrScrPrivPtr     rp = rrGetScrPriv(pScreen);
+    Bool	     ret;
+    int              i;
+
+    if (randrp->orig_EnterVT) {
+	pScrn->EnterVT = randrp->orig_EnterVT;
+	ret = pScrn->EnterVT (screen_index, flags);
+	randrp->orig_EnterVT = pScrn->EnterVT;
+	pScrn->EnterVT = xf86RandR12EnterVT;
+	if (!ret)
+	    return FALSE;
+    }
+
+    /* reload gamma */
+    for (i = 0; i < rp->numCrtcs; i++)
+	xf86RandR12CrtcSetGamma(pScreen, rp->crtcs[i]);
+
+    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);
+    int i;
+
+    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;
+    for (i = 0; i < rp->numCrtcs; i++) {
+	xf86RandR12CrtcGetGamma(pScreen, rp->crtcs[i]);
+    }
+    return TRUE;
+}
+
+#endif
+
+Bool
+xf86RandR12PreInit (ScrnInfoPtr pScrn)
+{
+    return TRUE;
+}
diff --git a/xorg-server/hw/xfree86/modes/xf86Rotate.c b/xorg-server/hw/xfree86/modes/xf86Rotate.c
index 655857597..57c3499ac 100644
--- a/xorg-server/hw/xfree86/modes/xf86Rotate.c
+++ b/xorg-server/hw/xfree86/modes/xf86Rotate.c
@@ -1,525 +1,525 @@
-/*

- * Copyright © 2006 Keith Packard

- *

- * Permission to use, copy, modify, distribute, and sell this software and its

- * documentation for any purpose is hereby granted without fee, provided that

- * the above copyright notice appear in all copies and that both that copyright

- * notice and this permission notice appear in supporting documentation, and

- * that the name of the copyright holders not be used in advertising or

- * publicity pertaining to distribution of the software without specific,

- * written prior permission.  The copyright holders make no representations

- * about the suitability of this software for any purpose.  It is provided "as

- * is" without express or implied warranty.

- *

- * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

- * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR

- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,

- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER

- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE

- * OF THIS SOFTWARE.

- */

-

-#ifdef HAVE_XORG_CONFIG_H

-#include <xorg-config.h>

-#else

-#ifdef HAVE_CONFIG_H

-#include <config.h>

-#endif

-#endif

-

-#include <stddef.h>

-#include <string.h>

-#include <stdio.h>

-

-#include "xf86.h"

-#include "xf86DDC.h"

-#include "fb.h"

-#include "windowstr.h"

-#include "xf86Crtc.h"

-#include "xf86Modes.h"

-#include "xf86RandR12.h"

-#include "X11/extensions/render.h"

-#include "X11/extensions/dpmsconst.h"

-#include "X11/Xatom.h"

-

-/* borrowed from composite extension, move to Render and publish? */

-

-static VisualPtr

-compGetWindowVisual (WindowPtr pWin)

-{

-    ScreenPtr	    pScreen = pWin->drawable.pScreen;

-    VisualID	    vid = wVisual (pWin);

-    int		    i;

-

-    for (i = 0; i < pScreen->numVisuals; i++)

-	if (pScreen->visuals[i].vid == vid)

-	    return &pScreen->visuals[i];

-    return 0;

-}

-

-static PictFormatPtr

-compWindowFormat (WindowPtr pWin)

-{

-    ScreenPtr	pScreen = pWin->drawable.pScreen;

-    

-    return PictureMatchVisual (pScreen, pWin->drawable.depth,

-			       compGetWindowVisual (pWin));

-}

-

-#define F(x)	IntToxFixed(x)

-

-#define toF(x)	((float) (x) / 65536.0f)

-

-static void

-xf86RotateCrtcRedisplay (xf86CrtcPtr crtc, RegionPtr region)

-{

-    ScrnInfoPtr		scrn = crtc->scrn;

-    ScreenPtr		screen = scrn->pScreen;

-    WindowPtr		root = screen->root;

-    PixmapPtr		dst_pixmap = crtc->rotatedPixmap;

-    PictFormatPtr	format = compWindowFormat (screen->root);

-    int			error;

-    PicturePtr		src, dst;

-    int			n = RegionNumRects(region);

-    BoxPtr		b = RegionRects(region);

-    XID			include_inferiors = IncludeInferiors;

-    

-    src = CreatePicture (None,

-			 &root->drawable,

-			 format,

-			 CPSubwindowMode,

-			 &include_inferiors,

-			 serverClient,

-			 &error);

-    if (!src)

-	return;

-

-    dst = CreatePicture (None,

-			 &dst_pixmap->drawable,

-			 format,

-			 0L,

-			 NULL,

-			 serverClient,

-			 &error);

-    if (!dst)

-	return;

-

-    error = SetPictureTransform (src, &crtc->crtc_to_framebuffer);

-    if (error)

-	return;

-    if (crtc->transform_in_use && crtc->filter)

-	SetPicturePictFilter (src, crtc->filter,

-			      crtc->params, crtc->nparams);

-

-    if (crtc->shadowClear)

-    {

-	CompositePicture (PictOpSrc,

-			  src, NULL, dst,

-			  0, 0, 0, 0, 0, 0,

-			  crtc->mode.HDisplay, crtc->mode.VDisplay);

-	crtc->shadowClear = FALSE;

-    }

-    else

-    {

-	while (n--)

-	{

-	    BoxRec	dst_box;

-

-	    dst_box = *b;

-	    dst_box.x1 -= crtc->filter_width >> 1;

-	    dst_box.x2 += crtc->filter_width >> 1;

-	    dst_box.y1 -= crtc->filter_height >> 1;

-	    dst_box.y2 += crtc->filter_height >> 1;

-	    pixman_f_transform_bounds (&crtc->f_framebuffer_to_crtc, &dst_box);

-	    CompositePicture (PictOpSrc,

-			      src, NULL, dst,

-			      dst_box.x1, dst_box.y1, 0, 0, dst_box.x1, dst_box.y1,

-			      dst_box.x2 - dst_box.x1,

-			      dst_box.y2 - dst_box.y1);

-	    b++;

-	}

-    }

-    FreePicture (src, None);

-    FreePicture (dst, None);

-}

-

-static void

-xf86CrtcDamageShadow (xf86CrtcPtr crtc)

-{

-    ScrnInfoPtr	pScrn = crtc->scrn;

-    BoxRec	damage_box;

-    RegionRec   damage_region;

-    ScreenPtr	pScreen = pScrn->pScreen;

-

-    damage_box.x1 = 0;

-    damage_box.x2 = crtc->mode.HDisplay;

-    damage_box.y1 = 0;

-    damage_box.y2 = crtc->mode.VDisplay;

-    if (!pixman_transform_bounds (&crtc->crtc_to_framebuffer, &damage_box))

-    {

-	damage_box.x1 = 0;

-	damage_box.y1 = 0;

-	damage_box.x2 = pScreen->width;

-	damage_box.y2 = pScreen->height;

-    }

-    if (damage_box.x1 < 0) damage_box.x1 = 0;

-    if (damage_box.y1 < 0) damage_box.y1 = 0;

-    if (damage_box.x2 > pScreen->width) damage_box.x2 = pScreen->width;

-    if (damage_box.y2 > pScreen->height) damage_box.y2 = pScreen->height;

-    RegionInit(&damage_region, &damage_box, 1);

-    DamageDamageRegion (&(*pScreen->GetScreenPixmap)(pScreen)->drawable,

-			&damage_region);

-    RegionUninit(&damage_region);

-    crtc->shadowClear = TRUE;

-}

-

-static void

-xf86RotatePrepare (ScreenPtr pScreen)

-{

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

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);

-    int			c;

-

-    for (c = 0; c < xf86_config->num_crtc; c++)

-    {

-	xf86CrtcPtr crtc = xf86_config->crtc[c];

-	

-	if (crtc->rotatedData && !crtc->rotatedPixmap)

-	{

-	    crtc->rotatedPixmap = crtc->funcs->shadow_create (crtc,

-							     crtc->rotatedData,

-							     crtc->mode.HDisplay,

-							     crtc->mode.VDisplay);

-	    if (!xf86_config->rotation_damage_registered)

-	    {

-		/* Hook damage to screen pixmap */

-		DamageRegister (&(*pScreen->GetScreenPixmap)(pScreen)->drawable,

-				xf86_config->rotation_damage);

-		xf86_config->rotation_damage_registered = TRUE;

-		EnableLimitedSchedulingLatency();

-	    }

-	    

-	    xf86CrtcDamageShadow (crtc);

-	}

-    }

-}

-

-static Bool

-xf86RotateRedisplay(ScreenPtr pScreen)

-{

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

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);

-    DamagePtr		damage = xf86_config->rotation_damage;

-    RegionPtr		region;

-

-    if (!damage)

-	return FALSE;

-    xf86RotatePrepare (pScreen);

-    region = DamageRegion(damage);

-    if (RegionNotEmpty(region))

-    {

-	int			c;

-	SourceValidateProcPtr	SourceValidate;

-

-	/*

-	 * SourceValidate is used by the software cursor code

-	 * to pull the cursor off of the screen when reading

-	 * bits from the frame buffer. Bypassing this function

-	 * leaves the software cursor in place

-	 */

-	SourceValidate = pScreen->SourceValidate;

-	pScreen->SourceValidate = NULL;

-

-	for (c = 0; c < xf86_config->num_crtc; c++)

-	{

-	    xf86CrtcPtr	    crtc = xf86_config->crtc[c];

-

-	    if (crtc->transform_in_use && crtc->enabled)

-	    {

-		RegionRec   crtc_damage;

-

-		/* compute portion of damage that overlaps crtc */

-		RegionInit(&crtc_damage, &crtc->bounds, 1);

-		RegionIntersect(&crtc_damage, &crtc_damage, region);

-		

-		/* update damaged region */

-		if (RegionNotEmpty(&crtc_damage))

-    		    xf86RotateCrtcRedisplay (crtc, &crtc_damage);

-		

-		RegionUninit(&crtc_damage);

-	    }

-	}

-	pScreen->SourceValidate = SourceValidate;

-	DamageEmpty(damage);

-    }

-    return TRUE;

-}

-

-static void

-xf86RotateBlockHandler(int screenNum, pointer blockData,

-		       pointer pTimeout, pointer pReadmask)

-{

-    ScreenPtr		pScreen = screenInfo.screens[screenNum];

-    ScrnInfoPtr		pScrn = xf86Screens[screenNum];

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);

-    Bool		rotation_active;

-

-    rotation_active = xf86RotateRedisplay(pScreen);

-    pScreen->BlockHandler = xf86_config->BlockHandler;

-    (*pScreen->BlockHandler) (screenNum, blockData, pTimeout, pReadmask);

-    /* cannot avoid re-wrapping until all wrapping is audited */

-    xf86_config->BlockHandler = pScreen->BlockHandler;

-    pScreen->BlockHandler = xf86RotateBlockHandler;

-}

-

-void

-xf86RotateDestroy (xf86CrtcPtr crtc)

-{

-    ScrnInfoPtr		pScrn = crtc->scrn;

-    ScreenPtr		pScreen = pScrn->pScreen;

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);

-    int			c;

-    

-    /* Free memory from rotation */

-    if (crtc->rotatedPixmap || crtc->rotatedData)

-    {

-	crtc->funcs->shadow_destroy (crtc, crtc->rotatedPixmap, crtc->rotatedData);

-	crtc->rotatedPixmap = NULL;

-	crtc->rotatedData = NULL;

-    }

-

-    for (c = 0; c < xf86_config->num_crtc; c++)

-	if (xf86_config->crtc[c]->transform_in_use)

-	    return;

-

-    /*

-     * Clean up damage structures when no crtcs are rotated

-     */

-    if (xf86_config->rotation_damage)

-    {

-	/* Free damage structure */

-	if (xf86_config->rotation_damage_registered)

-	{

-	    DamageUnregister (&(*pScreen->GetScreenPixmap)(pScreen)->drawable,

-			      xf86_config->rotation_damage);

-	    xf86_config->rotation_damage_registered = FALSE;

-	    DisableLimitedSchedulingLatency();

-	}

-	DamageDestroy (xf86_config->rotation_damage);

-	xf86_config->rotation_damage = NULL;

-    }

-}

-

-void

-xf86RotateFreeShadow(ScrnInfoPtr pScrn)

-{

-    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);

-    int c;

-

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

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

-

-       if (crtc->rotatedPixmap || crtc->rotatedData) {

-	   crtc->funcs->shadow_destroy(crtc, crtc->rotatedPixmap,

-				crtc->rotatedData);

-	   crtc->rotatedPixmap = NULL;

-	   crtc->rotatedData = NULL;

-       }

-   }

-}

-

-void

-xf86RotateCloseScreen (ScreenPtr screen)

-{

-    ScrnInfoPtr		scrn = xf86Screens[screen->myNum];

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);

-    int			c;

-

-    for (c = 0; c < xf86_config->num_crtc; c++)

-	xf86RotateDestroy (xf86_config->crtc[c]);

-}

-

-static Bool

-xf86CrtcFitsScreen (xf86CrtcPtr crtc, struct pict_f_transform *crtc_to_fb)

-{

-    ScrnInfoPtr		pScrn = crtc->scrn;

-    BoxRec		b;

-

-    /* When called before PreInit, the driver is

-     * presumably doing load detect

-     */

-    if (pScrn->virtualX == 0 || pScrn->virtualY == 0)

-	return TRUE;

-

-    b.x1 = 0;

-    b.y1 = 0;

-    b.x2 = crtc->mode.HDisplay;

-    b.y2 = crtc->mode.VDisplay;

-    if (crtc_to_fb)

-	pixman_f_transform_bounds (crtc_to_fb, &b);

-    else {

-	b.x1 += crtc->x;

-	b.y1 += crtc->y;

-	b.x2 += crtc->x;

-	b.y2 += crtc->y;

-    }

-

-    return (0 <= b.x1 && b.x2 <= pScrn->virtualX &&

-	    0 <= b.y1 && b.y2 <= pScrn->virtualY);

-}

-

-Bool

-xf86CrtcRotate (xf86CrtcPtr crtc)

-{

-    ScrnInfoPtr		pScrn = crtc->scrn;

-    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);

-    /* if this is called during ScreenInit() we don't have pScrn->pScreen yet */

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

-    PictTransform	crtc_to_fb;

-    struct pict_f_transform f_crtc_to_fb, f_fb_to_crtc;

-    xFixed		*new_params = NULL;

-    int			new_nparams = 0;

-    PictFilterPtr	new_filter = NULL;

-    int			new_width = 0;

-    int			new_height = 0;

-    RRTransformPtr	transform = NULL;

-    Bool		damage = FALSE;

-

-    if (crtc->transformPresent)

-	transform = &crtc->transform;

-

-    if (!RRTransformCompute (crtc->x, crtc->y,

-			     crtc->mode.HDisplay, crtc->mode.VDisplay,

-			     crtc->rotation,

-			     transform,

-

-			     &crtc_to_fb,

-			     &f_crtc_to_fb,

-			     &f_fb_to_crtc) &&

-	xf86CrtcFitsScreen (crtc, &f_crtc_to_fb))

-    {

-	/*

-	 * If the untranslated transformation is the identity,

-	 * disable the shadow buffer

-	 */

-	xf86RotateDestroy (crtc);

-	crtc->transform_in_use = FALSE;

-	free(new_params);

-	new_params = NULL;

-	new_nparams = 0;

-	new_filter = NULL;

-	new_width = 0;

-	new_height = 0;

-    }

-    else

-    {

-	/*

-	 * these are the size of the shadow pixmap, which

-	 * matches the mode, not the pre-rotated copy in the

-	 * frame buffer

-	 */

-	int	    width = crtc->mode.HDisplay;

-	int	    height = crtc->mode.VDisplay;

-	void	    *shadowData = crtc->rotatedData;

-	PixmapPtr   shadow = crtc->rotatedPixmap;

-	int	    old_width = shadow ? shadow->drawable.width : 0;

-	int	    old_height = shadow ? shadow->drawable.height : 0;

-

-	/* Allocate memory for rotation */

-	if (old_width != width || old_height != height)

-	{

-	    if (shadow || shadowData)

-	    {

-		crtc->funcs->shadow_destroy (crtc, shadow, shadowData);

-		crtc->rotatedPixmap = NULL;

-		crtc->rotatedData = NULL;

-	    }

-	    shadowData = crtc->funcs->shadow_allocate (crtc, width, height);

-	    if (!shadowData)

-		goto bail1;

-	    crtc->rotatedData = shadowData;

-	    /* shadow will be damaged in xf86RotatePrepare */

-	}

-	else

-	{

-	    /* mark shadowed area as damaged so it will be repainted */

-	    damage = TRUE;

-	}

-

-	if (!xf86_config->rotation_damage)

-	{

-	    /* Create damage structure */

-	    xf86_config->rotation_damage = DamageCreate (NULL, NULL,

-						DamageReportNone,

-						TRUE, pScreen, pScreen);

-	    if (!xf86_config->rotation_damage)

-		goto bail2;

-	    

-	    /* Wrap block handler */

-	    if (!xf86_config->BlockHandler) {

-		xf86_config->BlockHandler = pScreen->BlockHandler;

-		pScreen->BlockHandler = xf86RotateBlockHandler;

-	    }

-	}

-#ifdef RANDR_12_INTERFACE

-	if (transform)

-	{

-	    if (transform->nparams) {

-		new_params = malloc(transform->nparams * sizeof (xFixed));

-		if (new_params) {

-		    memcpy (new_params, transform->params,

-			    transform->nparams * sizeof (xFixed));

-		    new_nparams = transform->nparams;

-		    new_filter = transform->filter;

-		}

-	    } else

-		new_filter = transform->filter;

-	    if (new_filter)

-	    {

-		new_width = new_filter->width;

-		new_height = new_filter->height;

-	    }

-	}

-#endif

-

-	if (0)

-	{

-    bail2:

-	    if (shadow || shadowData)

-	    {

-		crtc->funcs->shadow_destroy (crtc, shadow, shadowData);

-		crtc->rotatedPixmap = NULL;

-		crtc->rotatedData = NULL;

-	    }

-    bail1:

-	    if (old_width && old_height)

-		crtc->rotatedPixmap = crtc->funcs->shadow_create (crtc,

-								  NULL,

-								  old_width,

-								  old_height);

-	    return FALSE;

-	}

-	crtc->transform_in_use = TRUE;

-    }

-    crtc->crtc_to_framebuffer = crtc_to_fb;

-    crtc->f_crtc_to_framebuffer = f_crtc_to_fb;

-    crtc->f_framebuffer_to_crtc = f_fb_to_crtc;

-    free(crtc->params);

-    crtc->params = new_params;

-    crtc->nparams = new_nparams;

-    crtc->filter = new_filter;

-    crtc->filter_width = new_width;

-    crtc->filter_height = new_height;

-    crtc->bounds.x1 = 0;

-    crtc->bounds.x2 = crtc->mode.HDisplay;

-    crtc->bounds.y1 = 0;

-    crtc->bounds.y2 = crtc->mode.VDisplay;

-    pixman_f_transform_bounds (&f_crtc_to_fb, &crtc->bounds);

-

-    if (damage)

-        xf86CrtcDamageShadow (crtc);

-

-    /* All done */

-    return TRUE;

-}

+/*
+ * Copyright © 2006 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#else
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#endif
+
+#include <stddef.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "xf86.h"
+#include "xf86DDC.h"
+#include "fb.h"
+#include "windowstr.h"
+#include "xf86Crtc.h"
+#include "xf86Modes.h"
+#include "xf86RandR12.h"
+#include "X11/extensions/render.h"
+#include "X11/extensions/dpmsconst.h"
+#include "X11/Xatom.h"
+
+/* borrowed from composite extension, move to Render and publish? */
+
+static VisualPtr
+compGetWindowVisual (WindowPtr pWin)
+{
+    ScreenPtr	    pScreen = pWin->drawable.pScreen;
+    VisualID	    vid = wVisual (pWin);
+    int		    i;
+
+    for (i = 0; i < pScreen->numVisuals; i++)
+	if (pScreen->visuals[i].vid == vid)
+	    return &pScreen->visuals[i];
+    return 0;
+}
+
+static PictFormatPtr
+compWindowFormat (WindowPtr pWin)
+{
+    ScreenPtr	pScreen = pWin->drawable.pScreen;
+    
+    return PictureMatchVisual (pScreen, pWin->drawable.depth,
+			       compGetWindowVisual (pWin));
+}
+
+#define F(x)	IntToxFixed(x)
+
+#define toF(x)	((float) (x) / 65536.0f)
+
+static void
+xf86RotateCrtcRedisplay (xf86CrtcPtr crtc, RegionPtr region)
+{
+    ScrnInfoPtr		scrn = crtc->scrn;
+    ScreenPtr		screen = scrn->pScreen;
+    WindowPtr		root = screen->root;
+    PixmapPtr		dst_pixmap = crtc->rotatedPixmap;
+    PictFormatPtr	format = compWindowFormat (screen->root);
+    int			error;
+    PicturePtr		src, dst;
+    int			n = RegionNumRects(region);
+    BoxPtr		b = RegionRects(region);
+    XID			include_inferiors = IncludeInferiors;
+    
+    src = CreatePicture (None,
+			 &root->drawable,
+			 format,
+			 CPSubwindowMode,
+			 &include_inferiors,
+			 serverClient,
+			 &error);
+    if (!src)
+	return;
+
+    dst = CreatePicture (None,
+			 &dst_pixmap->drawable,
+			 format,
+			 0L,
+			 NULL,
+			 serverClient,
+			 &error);
+    if (!dst)
+	return;
+
+    error = SetPictureTransform (src, &crtc->crtc_to_framebuffer);
+    if (error)
+	return;
+    if (crtc->transform_in_use && crtc->filter)
+	SetPicturePictFilter (src, crtc->filter,
+			      crtc->params, crtc->nparams);
+
+    if (crtc->shadowClear)
+    {
+	CompositePicture (PictOpSrc,
+			  src, NULL, dst,
+			  0, 0, 0, 0, 0, 0,
+			  crtc->mode.HDisplay, crtc->mode.VDisplay);
+	crtc->shadowClear = FALSE;
+    }
+    else
+    {
+	while (n--)
+	{
+	    BoxRec	dst_box;
+
+	    dst_box = *b;
+	    dst_box.x1 -= crtc->filter_width >> 1;
+	    dst_box.x2 += crtc->filter_width >> 1;
+	    dst_box.y1 -= crtc->filter_height >> 1;
+	    dst_box.y2 += crtc->filter_height >> 1;
+	    pixman_f_transform_bounds (&crtc->f_framebuffer_to_crtc, &dst_box);
+	    CompositePicture (PictOpSrc,
+			      src, NULL, dst,
+			      dst_box.x1, dst_box.y1, 0, 0, dst_box.x1, dst_box.y1,
+			      dst_box.x2 - dst_box.x1,
+			      dst_box.y2 - dst_box.y1);
+	    b++;
+	}
+    }
+    FreePicture (src, None);
+    FreePicture (dst, None);
+}
+
+static void
+xf86CrtcDamageShadow (xf86CrtcPtr crtc)
+{
+    ScrnInfoPtr	pScrn = crtc->scrn;
+    BoxRec	damage_box;
+    RegionRec   damage_region;
+    ScreenPtr	pScreen = pScrn->pScreen;
+
+    damage_box.x1 = 0;
+    damage_box.x2 = crtc->mode.HDisplay;
+    damage_box.y1 = 0;
+    damage_box.y2 = crtc->mode.VDisplay;
+    if (!pixman_transform_bounds (&crtc->crtc_to_framebuffer, &damage_box))
+    {
+	damage_box.x1 = 0;
+	damage_box.y1 = 0;
+	damage_box.x2 = pScreen->width;
+	damage_box.y2 = pScreen->height;
+    }
+    if (damage_box.x1 < 0) damage_box.x1 = 0;
+    if (damage_box.y1 < 0) damage_box.y1 = 0;
+    if (damage_box.x2 > pScreen->width) damage_box.x2 = pScreen->width;
+    if (damage_box.y2 > pScreen->height) damage_box.y2 = pScreen->height;
+    RegionInit(&damage_region, &damage_box, 1);
+    DamageDamageRegion (&(*pScreen->GetScreenPixmap)(pScreen)->drawable,
+			&damage_region);
+    RegionUninit(&damage_region);
+    crtc->shadowClear = TRUE;
+}
+
+static void
+xf86RotatePrepare (ScreenPtr pScreen)
+{
+    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
+    int			c;
+
+    for (c = 0; c < xf86_config->num_crtc; c++)
+    {
+	xf86CrtcPtr crtc = xf86_config->crtc[c];
+	
+	if (crtc->rotatedData && !crtc->rotatedPixmap)
+	{
+	    crtc->rotatedPixmap = crtc->funcs->shadow_create (crtc,
+							     crtc->rotatedData,
+							     crtc->mode.HDisplay,
+							     crtc->mode.VDisplay);
+	    if (!xf86_config->rotation_damage_registered)
+	    {
+		/* Hook damage to screen pixmap */
+		DamageRegister (&(*pScreen->GetScreenPixmap)(pScreen)->drawable,
+				xf86_config->rotation_damage);
+		xf86_config->rotation_damage_registered = TRUE;
+		EnableLimitedSchedulingLatency();
+	    }
+	    
+	    xf86CrtcDamageShadow (crtc);
+	}
+    }
+}
+
+static Bool
+xf86RotateRedisplay(ScreenPtr pScreen)
+{
+    ScrnInfoPtr		pScrn = xf86Screens[pScreen->myNum];
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
+    DamagePtr		damage = xf86_config->rotation_damage;
+    RegionPtr		region;
+
+    if (!damage)
+	return FALSE;
+    xf86RotatePrepare (pScreen);
+    region = DamageRegion(damage);
+    if (RegionNotEmpty(region))
+    {
+	int			c;
+	SourceValidateProcPtr	SourceValidate;
+
+	/*
+	 * SourceValidate is used by the software cursor code
+	 * to pull the cursor off of the screen when reading
+	 * bits from the frame buffer. Bypassing this function
+	 * leaves the software cursor in place
+	 */
+	SourceValidate = pScreen->SourceValidate;
+	pScreen->SourceValidate = NULL;
+
+	for (c = 0; c < xf86_config->num_crtc; c++)
+	{
+	    xf86CrtcPtr	    crtc = xf86_config->crtc[c];
+
+	    if (crtc->transform_in_use && crtc->enabled)
+	    {
+		RegionRec   crtc_damage;
+
+		/* compute portion of damage that overlaps crtc */
+		RegionInit(&crtc_damage, &crtc->bounds, 1);
+		RegionIntersect(&crtc_damage, &crtc_damage, region);
+		
+		/* update damaged region */
+		if (RegionNotEmpty(&crtc_damage))
+    		    xf86RotateCrtcRedisplay (crtc, &crtc_damage);
+		
+		RegionUninit(&crtc_damage);
+	    }
+	}
+	pScreen->SourceValidate = SourceValidate;
+	DamageEmpty(damage);
+    }
+    return TRUE;
+}
+
+static void
+xf86RotateBlockHandler(int screenNum, pointer blockData,
+		       pointer pTimeout, pointer pReadmask)
+{
+    ScreenPtr		pScreen = screenInfo.screens[screenNum];
+    ScrnInfoPtr		pScrn = xf86Screens[screenNum];
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
+    Bool		rotation_active;
+
+    rotation_active = xf86RotateRedisplay(pScreen);
+    pScreen->BlockHandler = xf86_config->BlockHandler;
+    (*pScreen->BlockHandler) (screenNum, blockData, pTimeout, pReadmask);
+    /* cannot avoid re-wrapping until all wrapping is audited */
+    xf86_config->BlockHandler = pScreen->BlockHandler;
+    pScreen->BlockHandler = xf86RotateBlockHandler;
+}
+
+void
+xf86RotateDestroy (xf86CrtcPtr crtc)
+{
+    ScrnInfoPtr		pScrn = crtc->scrn;
+    ScreenPtr		pScreen = pScrn->pScreen;
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
+    int			c;
+    
+    /* Free memory from rotation */
+    if (crtc->rotatedPixmap || crtc->rotatedData)
+    {
+	crtc->funcs->shadow_destroy (crtc, crtc->rotatedPixmap, crtc->rotatedData);
+	crtc->rotatedPixmap = NULL;
+	crtc->rotatedData = NULL;
+    }
+
+    for (c = 0; c < xf86_config->num_crtc; c++)
+	if (xf86_config->crtc[c]->transform_in_use)
+	    return;
+
+    /*
+     * Clean up damage structures when no crtcs are rotated
+     */
+    if (xf86_config->rotation_damage)
+    {
+	/* Free damage structure */
+	if (xf86_config->rotation_damage_registered)
+	{
+	    DamageUnregister (&(*pScreen->GetScreenPixmap)(pScreen)->drawable,
+			      xf86_config->rotation_damage);
+	    xf86_config->rotation_damage_registered = FALSE;
+	    DisableLimitedSchedulingLatency();
+	}
+	DamageDestroy (xf86_config->rotation_damage);
+	xf86_config->rotation_damage = NULL;
+    }
+}
+
+void
+xf86RotateFreeShadow(ScrnInfoPtr pScrn)
+{
+    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
+    int c;
+
+   for (c = 0; c < config->num_crtc; c++) {
+       xf86CrtcPtr crtc = config->crtc[c];
+
+       if (crtc->rotatedPixmap || crtc->rotatedData) {
+	   crtc->funcs->shadow_destroy(crtc, crtc->rotatedPixmap,
+				crtc->rotatedData);
+	   crtc->rotatedPixmap = NULL;
+	   crtc->rotatedData = NULL;
+       }
+   }
+}
+
+void
+xf86RotateCloseScreen (ScreenPtr screen)
+{
+    ScrnInfoPtr		scrn = xf86Screens[screen->myNum];
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
+    int			c;
+
+    for (c = 0; c < xf86_config->num_crtc; c++)
+	xf86RotateDestroy (xf86_config->crtc[c]);
+}
+
+static Bool
+xf86CrtcFitsScreen (xf86CrtcPtr crtc, struct pict_f_transform *crtc_to_fb)
+{
+    ScrnInfoPtr		pScrn = crtc->scrn;
+    BoxRec		b;
+
+    /* When called before PreInit, the driver is
+     * presumably doing load detect
+     */
+    if (pScrn->virtualX == 0 || pScrn->virtualY == 0)
+	return TRUE;
+
+    b.x1 = 0;
+    b.y1 = 0;
+    b.x2 = crtc->mode.HDisplay;
+    b.y2 = crtc->mode.VDisplay;
+    if (crtc_to_fb)
+	pixman_f_transform_bounds (crtc_to_fb, &b);
+    else {
+	b.x1 += crtc->x;
+	b.y1 += crtc->y;
+	b.x2 += crtc->x;
+	b.y2 += crtc->y;
+    }
+
+    return (0 <= b.x1 && b.x2 <= pScrn->virtualX &&
+	    0 <= b.y1 && b.y2 <= pScrn->virtualY);
+}
+
+Bool
+xf86CrtcRotate (xf86CrtcPtr crtc)
+{
+    ScrnInfoPtr		pScrn = crtc->scrn;
+    xf86CrtcConfigPtr   xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
+    /* if this is called during ScreenInit() we don't have pScrn->pScreen yet */
+    ScreenPtr		pScreen = screenInfo.screens[pScrn->scrnIndex];
+    PictTransform	crtc_to_fb;
+    struct pict_f_transform f_crtc_to_fb, f_fb_to_crtc;
+    xFixed		*new_params = NULL;
+    int			new_nparams = 0;
+    PictFilterPtr	new_filter = NULL;
+    int			new_width = 0;
+    int			new_height = 0;
+    RRTransformPtr	transform = NULL;
+    Bool		damage = FALSE;
+
+    if (crtc->transformPresent)
+	transform = &crtc->transform;
+
+    if (!RRTransformCompute (crtc->x, crtc->y,
+			     crtc->mode.HDisplay, crtc->mode.VDisplay,
+			     crtc->rotation,
+			     transform,
+
+			     &crtc_to_fb,
+			     &f_crtc_to_fb,
+			     &f_fb_to_crtc) &&
+	xf86CrtcFitsScreen (crtc, &f_crtc_to_fb))
+    {
+	/*
+	 * If the untranslated transformation is the identity,
+	 * disable the shadow buffer
+	 */
+	xf86RotateDestroy (crtc);
+	crtc->transform_in_use = FALSE;
+	free(new_params);
+	new_params = NULL;
+	new_nparams = 0;
+	new_filter = NULL;
+	new_width = 0;
+	new_height = 0;
+    }
+    else
+    {
+	/*
+	 * these are the size of the shadow pixmap, which
+	 * matches the mode, not the pre-rotated copy in the
+	 * frame buffer
+	 */
+	int	    width = crtc->mode.HDisplay;
+	int	    height = crtc->mode.VDisplay;
+	void	    *shadowData = crtc->rotatedData;
+	PixmapPtr   shadow = crtc->rotatedPixmap;
+	int	    old_width = shadow ? shadow->drawable.width : 0;
+	int	    old_height = shadow ? shadow->drawable.height : 0;
+
+	/* Allocate memory for rotation */
+	if (old_width != width || old_height != height)
+	{
+	    if (shadow || shadowData)
+	    {
+		crtc->funcs->shadow_destroy (crtc, shadow, shadowData);
+		crtc->rotatedPixmap = NULL;
+		crtc->rotatedData = NULL;
+	    }
+	    shadowData = crtc->funcs->shadow_allocate (crtc, width, height);
+	    if (!shadowData)
+		goto bail1;
+	    crtc->rotatedData = shadowData;
+	    /* shadow will be damaged in xf86RotatePrepare */
+	}
+	else
+	{
+	    /* mark shadowed area as damaged so it will be repainted */
+	    damage = TRUE;
+	}
+
+	if (!xf86_config->rotation_damage)
+	{
+	    /* Create damage structure */
+	    xf86_config->rotation_damage = DamageCreate (NULL, NULL,
+						DamageReportNone,
+						TRUE, pScreen, pScreen);
+	    if (!xf86_config->rotation_damage)
+		goto bail2;
+	    
+	    /* Wrap block handler */
+	    if (!xf86_config->BlockHandler) {
+		xf86_config->BlockHandler = pScreen->BlockHandler;
+		pScreen->BlockHandler = xf86RotateBlockHandler;
+	    }
+	}
+#ifdef RANDR_12_INTERFACE
+	if (transform)
+	{
+	    if (transform->nparams) {
+		new_params = malloc(transform->nparams * sizeof (xFixed));
+		if (new_params) {
+		    memcpy (new_params, transform->params,
+			    transform->nparams * sizeof (xFixed));
+		    new_nparams = transform->nparams;
+		    new_filter = transform->filter;
+		}
+	    } else
+		new_filter = transform->filter;
+	    if (new_filter)
+	    {
+		new_width = new_filter->width;
+		new_height = new_filter->height;
+	    }
+	}
+#endif
+
+	if (0)
+	{
+    bail2:
+	    if (shadow || shadowData)
+	    {
+		crtc->funcs->shadow_destroy (crtc, shadow, shadowData);
+		crtc->rotatedPixmap = NULL;
+		crtc->rotatedData = NULL;
+	    }
+    bail1:
+	    if (old_width && old_height)
+		crtc->rotatedPixmap = crtc->funcs->shadow_create (crtc,
+								  NULL,
+								  old_width,
+								  old_height);
+	    return FALSE;
+	}
+	crtc->transform_in_use = TRUE;
+    }
+    crtc->crtc_to_framebuffer = crtc_to_fb;
+    crtc->f_crtc_to_framebuffer = f_crtc_to_fb;
+    crtc->f_framebuffer_to_crtc = f_fb_to_crtc;
+    free(crtc->params);
+    crtc->params = new_params;
+    crtc->nparams = new_nparams;
+    crtc->filter = new_filter;
+    crtc->filter_width = new_width;
+    crtc->filter_height = new_height;
+    crtc->bounds.x1 = 0;
+    crtc->bounds.x2 = crtc->mode.HDisplay;
+    crtc->bounds.y1 = 0;
+    crtc->bounds.y2 = crtc->mode.VDisplay;
+    pixman_f_transform_bounds (&f_crtc_to_fb, &crtc->bounds);
+
+    if (damage)
+        xf86CrtcDamageShadow (crtc);
+
+    /* All done */
+    return TRUE;
+}