xserver libX11 libxcb pixman mesa git update 20 Mar 2011

6 files changed, 2611 insertions, 2611 deletions

diff --git a/xorg-server/exa/exa.h b/xorg-server/exa/exa.h
index 6de63008e..3109607d8 100644
--- a/xorg-server/exa/exa.h
+++ b/xorg-server/exa/exa.h
@@ -1,843 +1,843 @@
-/*
- *
- * Copyright (C) 2000 Keith Packard
- *               2004 Eric Anholt
- *               2005 Zack Rusin
- *
- * 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 copyright holders not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission. 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.
- */
-
-/** @file
- * This is the header containing the public API of EXA for exa drivers.
- */
-
-#ifndef EXA_H
-#define EXA_H
-
-#include "scrnintstr.h"
-#include "pixmapstr.h"
-#include "windowstr.h"
-#include "gcstruct.h"
-#include "picturestr.h"
-#include "fb.h"
-
-#define EXA_VERSION_MAJOR   2
-#define EXA_VERSION_MINOR   5
-#define EXA_VERSION_RELEASE 0
-
-typedef struct _ExaOffscreenArea ExaOffscreenArea;
-
-typedef void (*ExaOffscreenSaveProc) (ScreenPtr pScreen, ExaOffscreenArea *area);
-
-typedef enum _ExaOffscreenState {
-    ExaOffscreenAvail,
-    ExaOffscreenRemovable,
-    ExaOffscreenLocked
-} ExaOffscreenState;
-
-struct _ExaOffscreenArea {
-    int                 base_offset;	/* allocation base */
-    int                 offset;         /* aligned offset */
-    int                 size;           /* total allocation size */
-    unsigned            last_use;
-    pointer             privData;
-
-    ExaOffscreenSaveProc save;
-
-    ExaOffscreenState   state;
-
-    ExaOffscreenArea    *next;
-
-    unsigned            eviction_cost;
-
-    ExaOffscreenArea    *prev;          /* Double-linked list for defragmentation */
-    int                 align;          /* required alignment */
-};
-
-/**
- * The ExaDriver structure is allocated through exaDriverAlloc(), and then
- * fllled in by drivers.
- */
-typedef struct _ExaDriver {
-    /**
-     * exa_major and exa_minor should be set by the driver to the version of
-     * EXA which the driver was compiled for (or configures itself at runtime
-     * to support).  This allows EXA to extend the structure for new features
-     * without breaking ABI for drivers compiled against older versions.
-     */
-    int exa_major, exa_minor;
-
-    /**
-     * memoryBase is the address of the beginning of framebuffer memory.
-     * The visible screen should be within memoryBase to memoryBase +
-     * memorySize.
-     */
-    CARD8         *memoryBase;
-
-    /**
-     * offScreenBase is the offset from memoryBase of the beginning of the area
-     * to be managed by EXA's linear offscreen memory manager.
-     *
-     * In XFree86 DDX drivers, this is probably:
-     *   (pScrn->displayWidth * cpp * pScrn->virtualY)
-     */
-    unsigned long  offScreenBase;
-
-    /**
-     * memorySize is the length (in bytes) of framebuffer memory beginning
-     * from memoryBase.
-     *
-     * The offscreen memory manager will manage the area beginning at
-     * (memoryBase + offScreenBase), with a length of (memorySize -
-     * offScreenBase)
-     *
-     * In XFree86 DDX drivers, this is probably (pScrn->videoRam * 1024)
-     */
-    unsigned long memorySize;
-
-    /**
-     * pixmapOffsetAlign is the byte alignment necessary for pixmap offsets
-     * within framebuffer.
-     *
-     * Hardware typically has a required alignment of offsets, which may or may
-     * not be a power of two.  EXA will ensure that pixmaps managed by the
-     * offscreen memory manager meet this alignment requirement.
-     */
-    int pixmapOffsetAlign;
-
-    /**
-     * pixmapPitchAlign is the byte alignment necessary for pixmap pitches
-     * within the framebuffer.
-     *
-     * Hardware typically has a required alignment of pitches for acceleration.
-     * For 3D hardware, Composite acceleration often requires that source and
-     * mask pixmaps (textures) have a power-of-two pitch, which can be demanded
-     * using EXA_OFFSCREEN_ALIGN_POT.  These pitch requirements only apply to
-     * pixmaps managed by the offscreen memory manager.  Thus, it is up to the
-     * driver to ensure that the visible screen has an appropriate pitch for
-     * acceleration.
-     */
-    int pixmapPitchAlign;
-
-    /**
-     * The flags field is bitfield of boolean values controlling EXA's behavior.
-     *
-     * The flags in clude EXA_OFFSCREEN_PIXMAPS, EXA_OFFSCREEN_ALIGN_POT, and
-     * EXA_TWO_BITBLT_DIRECTIONS.
-     */
-    int flags;
-
-    /** @{ */
-    /**
-     * maxX controls the X coordinate limitation for rendering from the card.
-     * The driver should never receive a request for rendering beyond maxX
-     * in the X direction from the origin of a pixmap.
-     */
-    int maxX;
-
-    /**
-     * maxY controls the Y coordinate limitation for rendering from the card.
-     * The driver should never receive a request for rendering beyond maxY
-     * in the Y direction from the origin of a pixmap.
-     */
-    int maxY;
-    /** @} */
-
-    /* private */
-    ExaOffscreenArea *offScreenAreas;
-    Bool              needsSync;
-    int               lastMarker;
-
-    /** @name Solid
-     * @{
-     */
-    /**
-     * PrepareSolid() sets up the driver for doing a solid fill.
-     * @param pPixmap Destination pixmap
-     * @param alu raster operation
-     * @param planemask write mask for the fill
-     * @param fg "foreground" color for the fill
-     *
-     * This call should set up the driver for doing a series of solid fills
-     * through the Solid() call.  The alu raster op is one of the GX*
-     * graphics functions listed in X.h, and typically maps to a similar
-     * single-byte "ROP" setting in all hardware.  The planemask controls
-     * which bits of the destination should be affected, and will only represent
-     * the bits up to the depth of pPixmap.  The fg is the pixel value of the
-     * foreground color referred to in ROP descriptions.
-     *
-     * Note that many drivers will need to store some of the data in the driver
-     * private record, for sending to the hardware with each drawing command.
-     *
-     * The PrepareSolid() call is required of all drivers, but it may fail for any
-     * reason.  Failure results in a fallback to software rendering.
-     */
-    Bool        (*PrepareSolid) (PixmapPtr      pPixmap,
-                                 int            alu,
-                                 Pixel          planemask,
-                                 Pixel          fg);
-
-    /**
-     * Solid() performs a solid fill set up in the last PrepareSolid() call.
-     *
-     * @param pPixmap destination pixmap
-     * @param x1 left coordinate
-     * @param y1 top coordinate
-     * @param x2 right coordinate
-     * @param y2 bottom coordinate
-     *
-     * Performs the fill set up by the last PrepareSolid() call, covering the
-     * area from (x1,y1) to (x2,y2) in pPixmap.  Note that the coordinates are
-     * in the coordinate space of the destination pixmap, so the driver will
-     * need to set up the hardware's offset and pitch for the destination
-     * coordinates according to the pixmap's offset and pitch within
-     * framebuffer.  This likely means using exaGetPixmapOffset() and
-     * exaGetPixmapPitch().
-     *
-     * This call is required if PrepareSolid() ever succeeds.
-     */
-    void        (*Solid) (PixmapPtr      pPixmap, int x1, int y1, int x2, int y2);
-
-    /**
-     * DoneSolid() finishes a set of solid fills.
-     *
-     * @param pPixmap destination pixmap.
-     *
-     * The DoneSolid() call is called at the end of a series of consecutive
-     * Solid() calls following a successful PrepareSolid().  This allows drivers
-     * to finish up emitting drawing commands that were buffered, or clean up
-     * state from PrepareSolid().
-     *
-     * This call is required if PrepareSolid() ever succeeds.
-     */
-    void        (*DoneSolid) (PixmapPtr      pPixmap);
-    /** @} */
-
-    /** @name Copy
-     * @{
-     */
-    /**
-     * PrepareCopy() sets up the driver for doing a copy within video 
-     * memory.
-     *
-     * @param pSrcPixmap source pixmap
-     * @param pDstPixmap destination pixmap
-     * @param dx X copy direction
-     * @param dy Y copy direction
-     * @param alu raster operation
-     * @param planemask write mask for the fill
-     *
-     * This call should set up the driver for doing a series of copies from the
-     * the pSrcPixmap to the pDstPixmap.  The dx flag will be positive if the
-     * hardware should do the copy from the left to the right, and dy will be
-     * positive if the copy should be done from the top to the bottom.  This
-     * is to deal with self-overlapping copies when pSrcPixmap == pDstPixmap.
-     * If your hardware can only support blits that are (left to right, top to
-     * bottom) or (right to left, bottom to top), then you should set
-     * #EXA_TWO_BITBLT_DIRECTIONS, and EXA will break down Copy operations to
-     * ones that meet those requirements.  The alu raster op is one of the GX*
-     * graphics functions listed in X.h, and typically maps to a similar
-     * single-byte "ROP" setting in all hardware.  The planemask controls which
-     * bits of the destination should be affected, and will only represent the
-     * bits up to the depth of pPixmap.
-     *
-     * Note that many drivers will need to store some of the data in the driver
-     * private record, for sending to the hardware with each drawing command.
-     *
-     * The PrepareCopy() call is required of all drivers, but it may fail for any
-     * reason.  Failure results in a fallback to software rendering.
-     */
-    Bool        (*PrepareCopy) (PixmapPtr       pSrcPixmap,
-                                PixmapPtr       pDstPixmap,
-                                int             dx,
-                                int             dy,
-                                int             alu,
-                                Pixel           planemask);
-
-    /**
-     * Copy() performs a copy set up in the last PrepareCopy call.
-     *
-     * @param pDstPixmap destination pixmap
-     * @param srcX source X coordinate
-     * @param srcY source Y coordinate
-     * @param dstX destination X coordinate
-     * @param dstY destination Y coordinate
-     * @param width width of the rectangle to be copied
-     * @param height height of the rectangle to be copied.
-     *
-     * Performs the copy set up by the last PrepareCopy() call, copying the
-     * rectangle from (srcX, srcY) to (srcX + width, srcY + width) in the source
-     * pixmap to the same-sized rectangle at (dstX, dstY) in the destination
-     * pixmap.  Those rectangles may overlap in memory, if
-     * pSrcPixmap == pDstPixmap.  Note that this call does not receive the
-     * pSrcPixmap as an argument -- if it's needed in this function, it should
-     * be stored in the driver private during PrepareCopy().  As with Solid(),
-     * the coordinates are in the coordinate space of each pixmap, so the driver
-     * will need to set up source and destination pitches and offsets from those
-     * pixmaps, probably using exaGetPixmapOffset() and exaGetPixmapPitch().
-     *
-     * This call is required if PrepareCopy ever succeeds.
-     */
-    void        (*Copy) (PixmapPtr       pDstPixmap,
-                         int    srcX,
-                         int    srcY,
-                         int    dstX,
-                         int    dstY,
-                         int    width,
-                         int    height);
-
-    /**
-     * DoneCopy() finishes a set of copies.
-     *
-     * @param pPixmap destination pixmap.
-     *
-     * The DoneCopy() call is called at the end of a series of consecutive
-     * Copy() calls following a successful PrepareCopy().  This allows drivers
-     * to finish up emitting drawing commands that were buffered, or clean up
-     * state from PrepareCopy().
-     *
-     * This call is required if PrepareCopy() ever succeeds.
-     */
-    void        (*DoneCopy) (PixmapPtr       pDstPixmap);
-    /** @} */
-
-    /** @name Composite
-     * @{
-     */
-    /**
-     * CheckComposite() checks to see if a composite operation could be
-     * accelerated.
-     *
-     * @param op Render operation
-     * @param pSrcPicture source Picture
-     * @param pMaskPicture mask picture
-     * @param pDstPicture destination Picture
-     *
-     * The CheckComposite() call checks if the driver could handle acceleration
-     * of op with the given source, mask, and destination pictures.  This allows
-     * drivers to check source and destination formats, supported operations,
-     * transformations, and component alpha state, and send operations it can't
-     * support to software rendering early on.  This avoids costly pixmap
-     * migration to the wrong places when the driver can't accelerate
-     * operations.  Note that because migration hasn't happened, the driver
-     * can't know during CheckComposite() what the offsets and pitches of the
-     * pixmaps are going to be.
-     *
-     * See PrepareComposite() for more details on likely issues that drivers
-     * will have in accelerating Composite operations.
-     *
-     * The CheckComposite() call is recommended if PrepareComposite() is
-     * implemented, but is not required.
-     */
-    Bool        (*CheckComposite) (int          op,
-                                   PicturePtr   pSrcPicture,
-                                   PicturePtr   pMaskPicture,
-                                   PicturePtr   pDstPicture);
-
-    /**
-     * PrepareComposite() sets up the driver for doing a Composite operation
-     * described in the Render extension protocol spec.
-     *
-     * @param op Render operation
-     * @param pSrcPicture source Picture
-     * @param pMaskPicture mask picture
-     * @param pDstPicture destination Picture
-     * @param pSrc source pixmap
-     * @param pMask mask pixmap
-     * @param pDst destination pixmap
-     *
-     * This call should set up the driver for doing a series of Composite
-     * operations, as described in the Render protocol spec, with the given
-     * pSrcPicture, pMaskPicture, and pDstPicture.  The pSrc, pMask, and
-     * pDst are the pixmaps containing the pixel data, and should be used for
-     * setting the offset and pitch used for the coordinate spaces for each of
-     * the Pictures.
-     *
-     * Notes on interpreting Picture structures:
-     * - The Picture structures will always have a valid pDrawable.
-     * - The Picture structures will never have alphaMap set.
-     * - The mask Picture (and therefore pMask) may be NULL, in which case the
-     *   operation is simply src OP dst instead of src IN mask OP dst, and
-     *   mask coordinates should be ignored.
-     * - pMarkPicture may have componentAlpha set, which greatly changes
-     *   the behavior of the Composite operation.  componentAlpha has no effect
-     *   when set on pSrcPicture or pDstPicture.
-     * - The source and mask Pictures may have a transformation set
-     *   (Picture->transform != NULL), which means that the source coordinates
-     *   should be transformed by that transformation, resulting in scaling,
-     *   rotation, etc.  The PictureTransformPoint() call can transform
-     *   coordinates for you.  Transforms have no effect on Pictures when used
-     *   as a destination.
-     * - The source and mask pictures may have a filter set.  PictFilterNearest
-     *   and PictFilterBilinear are defined in the Render protocol, but others
-     *   may be encountered, and must be handled correctly (usually by
-     *   PrepareComposite failing, and falling back to software).  Filters have
-     *   no effect on Pictures when used as a destination.
-     * - The source and mask Pictures may have repeating set, which must be
-     *   respected.  Many chipsets will be unable to support repeating on
-     *   pixmaps that have a width or height that is not a power of two.
-     *
-     * If your hardware can't support source pictures (textures) with
-     * non-power-of-two pitches, you should set #EXA_OFFSCREEN_ALIGN_POT.
-     *
-     * Note that many drivers will need to store some of the data in the driver
-     * private record, for sending to the hardware with each drawing command.
-     *
-     * The PrepareComposite() call is not required.  However, it is highly
-     * recommended for performance of antialiased font rendering and performance
-     * of cairo applications.  Failure results in a fallback to software
-     * rendering.
-     */
-    Bool        (*PrepareComposite) (int                op,
-                                     PicturePtr         pSrcPicture,
-                                     PicturePtr         pMaskPicture,
-                                     PicturePtr         pDstPicture,
-                                     PixmapPtr          pSrc,
-                                     PixmapPtr          pMask,
-                                     PixmapPtr          pDst);
-
-    /**
-     * Composite() performs a Composite operation set up in the last
-     * PrepareComposite() call.
-     *
-     * @param pDstPixmap destination pixmap
-     * @param srcX source X coordinate
-     * @param srcY source Y coordinate
-     * @param maskX source X coordinate
-     * @param maskY source Y coordinate
-     * @param dstX destination X coordinate
-     * @param dstY destination Y coordinate
-     * @param width destination rectangle width
-     * @param height destination rectangle height
-     *
-     * Performs the Composite operation set up by the last PrepareComposite()
-     * call, to the rectangle from (dstX, dstY) to (dstX + width, dstY + height)
-     * in the destination Pixmap.  Note that if a transformation was set on
-     * the source or mask Pictures, the source rectangles may not be the same
-     * size as the destination rectangles and filtering.  Getting the coordinate
-     * transformation right at the subpixel level can be tricky, and rendercheck
-     * can test this for you.
-     *
-     * This call is required if PrepareComposite() ever succeeds.
-     */
-    void        (*Composite) (PixmapPtr         pDst,
-                              int       srcX,
-                              int        srcY,
-                              int        maskX,
-                              int        maskY,
-                              int        dstX,
-                              int        dstY,
-                              int        width,
-                              int        height);
-
-    /**
-     * DoneComposite() finishes a set of Composite operations.
-     *
-     * @param pPixmap destination pixmap.
-     *
-     * The DoneComposite() call is called at the end of a series of consecutive
-     * Composite() calls following a successful PrepareComposite().  This allows
-     * drivers to finish up emitting drawing commands that were buffered, or
-     * clean up state from PrepareComposite().
-     *
-     * This call is required if PrepareComposite() ever succeeds.
-     */
-    void        (*DoneComposite) (PixmapPtr         pDst);
-    /** @} */
-
-    /**
-     * UploadToScreen() loads a rectangle of data from src into pDst.
-     *
-     * @param pDst destination pixmap
-     * @param x destination X coordinate.
-     * @param y destination Y coordinate
-     * @param width width of the rectangle to be copied
-     * @param height height of the rectangle to be copied
-     * @param src pointer to the beginning of the source data
-     * @param src_pitch pitch (in bytes) of the lines of source data.
-     *
-     * UploadToScreen() copies data in system memory beginning at src (with
-     * pitch src_pitch) into the destination pixmap from (x, y) to
-     * (x + width, y + height).  This is typically done with hostdata uploads,
-     * where the CPU sets up a blit command on the hardware with instructions
-     * that the blit data will be fed through some sort of aperture on the card.
-     *
-     * If UploadToScreen() is performed asynchronously, it is up to the driver
-     * to call exaMarkSync().  This is in contrast to most other acceleration
-     * calls in EXA.
-     *
-     * UploadToScreen() can aid in pixmap migration, but is most important for
-     * the performance of exaGlyphs() (antialiased font drawing) by allowing
-     * pipelining of data uploads, avoiding a sync of the card after each glyph.
-     * 
-     * @return TRUE if the driver successfully uploaded the data.  FALSE
-     * indicates that EXA should fall back to doing the upload in software.
-     *
-     * UploadToScreen() is not required, but is recommended if Composite
-     * acceleration is supported.
-     */
-    Bool        (*UploadToScreen) (PixmapPtr            pDst,
-				   int                  x,
-				   int                  y,
-				   int                  w,
-				   int                  h,
-                                   char                 *src,
-                                   int                  src_pitch);
-
-    /**
-     * UploadToScratch() is no longer used and will be removed next time the EXA
-     * major version needs to be bumped.
-     */
-    Bool        (*UploadToScratch) (PixmapPtr           pSrc,
-                                    PixmapPtr           pDst);
-
-    /**
-     * DownloadFromScreen() loads a rectangle of data from pSrc into dst
-     *
-     * @param pSrc source pixmap
-     * @param x source X coordinate.
-     * @param y source Y coordinate
-     * @param width width of the rectangle to be copied
-     * @param height height of the rectangle to be copied
-     * @param dst pointer to the beginning of the destination data
-     * @param dst_pitch pitch (in bytes) of the lines of destination data.
-     *
-     * DownloadFromScreen() copies data from offscreen memory in pSrc from
-     * (x, y) to (x + width, y + height), to system memory starting at
-     * dst (with pitch dst_pitch).  This would usually be done
-     * using scatter-gather DMA, supported by a DRM call, or by blitting to AGP
-     * and then synchronously reading from AGP.  Because the implementation
-     * might be synchronous, EXA leaves it up to the driver to call
-     * exaMarkSync() if DownloadFromScreen() was asynchronous.  This is in
-     * contrast to most other acceleration calls in EXA.
-     *
-     * DownloadFromScreen() can aid in the largest bottleneck in pixmap
-     * migration, which is the read from framebuffer when evicting pixmaps from
-     * framebuffer memory.  Thus, it is highly recommended, even though
-     * implementations are typically complicated.
-     * 
-     * @return TRUE if the driver successfully downloaded the data.  FALSE
-     * indicates that EXA should fall back to doing the download in software.
-     *
-     * DownloadFromScreen() is not required, but is highly recommended.
-     */
-    Bool (*DownloadFromScreen)(PixmapPtr pSrc,
-                               int x,  int y,
-                               int w,  int h,
-                               char *dst,  int dst_pitch);
-
-    /**
-     * MarkSync() requests that the driver mark a synchronization point,
-     * returning an driver-defined integer marker which could be requested for
-     * synchronization to later in WaitMarker().  This might be used in the
-     * future to avoid waiting for full hardware stalls before accessing pixmap
-     * data with the CPU, but is not important in the current incarnation of
-     * EXA.
-     *
-     * Note that drivers should call exaMarkSync() when they have done some
-     * acceleration, rather than their own MarkSync() handler, as otherwise EXA
-     * will be unaware of the driver's acceleration and not sync to it during
-     * fallbacks.
-     *
-     * MarkSync() is optional.
-     */
-    int		(*MarkSync)   (ScreenPtr pScreen);
-
-    /**
-     * WaitMarker() waits for all rendering before the given marker to have
-     * completed.  If the driver does not implement MarkSync(), marker is
-     * meaningless, and all rendering by the hardware should be completed before
-     * WaitMarker() returns.
-     *
-     * Note that drivers should call exaWaitSync() to wait for all acceleration
-     * to finish, as otherwise EXA will be unaware of the driver having
-     * synchronized, resulting in excessive WaitMarker() calls.
-     *
-     * WaitMarker() is required of all drivers.
-     */
-    void	(*WaitMarker) (ScreenPtr pScreen, int marker);
-
-    /** @{ */
-    /**
-     * PrepareAccess() is called before CPU access to an offscreen pixmap.
-     *
-     * @param pPix the pixmap being accessed
-     * @param index the index of the pixmap being accessed.
-     *
-     * PrepareAccess() will be called before CPU access to an offscreen pixmap.
-     * This can be used to set up hardware surfaces for byteswapping or
-     * untiling, or to adjust the pixmap's devPrivate.ptr for the purpose of
-     * making CPU access use a different aperture.
-     *
-     * The index is one of #EXA_PREPARE_DEST, #EXA_PREPARE_SRC,
-     * #EXA_PREPARE_MASK, #EXA_PREPARE_AUX_DEST, #EXA_PREPARE_AUX_SRC, or
-     * #EXA_PREPARE_AUX_MASK. Since only up to #EXA_NUM_PREPARE_INDICES pixmaps
-     * will have PrepareAccess() called on them per operation, drivers can have
-     * a small, statically-allocated space to maintain state for PrepareAccess()
-     * and FinishAccess() in.  Note that PrepareAccess() is only called once per
-     * pixmap and operation, regardless of whether the pixmap is used as a
-     * destination and/or source, and the index may not reflect the usage.
-     *
-     * PrepareAccess() may fail.  An example might be the case of hardware that
-     * can set up 1 or 2 surfaces for CPU access, but not 3.  If PrepareAccess()
-     * fails, EXA will migrate the pixmap to system memory.
-     * DownloadFromScreen() must be implemented and must not fail if a driver
-     * wishes to fail in PrepareAccess().  PrepareAccess() must not fail when
-     * pPix is the visible screen, because the visible screen can not be
-     * migrated.
-     *
-     * @return TRUE if PrepareAccess() successfully prepared the pixmap for CPU
-     * drawing.
-     * @return FALSE if PrepareAccess() is unsuccessful and EXA should use
-     * DownloadFromScreen() to migate the pixmap out.
-     */
-    Bool	(*PrepareAccess)(PixmapPtr pPix, int index);
-
-    /**
-     * FinishAccess() is called after CPU access to an offscreen pixmap.
-     *
-     * @param pPix the pixmap being accessed
-     * @param index the index of the pixmap being accessed.
-     *
-     * FinishAccess() will be called after finishing CPU access of an offscreen
-     * pixmap set up by PrepareAccess().  Note that the FinishAccess() will not be
-     * called if PrepareAccess() failed and the pixmap was migrated out.
-     */
-    void	(*FinishAccess)(PixmapPtr pPix, int index);
-
-    /**
-     * PixmapIsOffscreen() is an optional driver replacement to
-     * exaPixmapHasGpuCopy(). Set to NULL if you want the standard behaviour
-     * of exaPixmapHasGpuCopy().
-     *
-     * @param pPix the pixmap
-     * @return TRUE if the given drawable is in framebuffer memory.
-     *
-     * exaPixmapHasGpuCopy() is used to determine if a pixmap is in offscreen
-     * memory, meaning that acceleration could probably be done to it, and that it
-     * will need to be wrapped by PrepareAccess()/FinishAccess() when accessing it
-     * with the CPU.
-     *
-     *
-     */
-    Bool	(*PixmapIsOffscreen)(PixmapPtr pPix);
-
-	/** @name PrepareAccess() and FinishAccess() indices
-	 * @{
-	 */
-	/**
-	 * EXA_PREPARE_DEST is the index for a pixmap that may be drawn to or
-	 * read from.
-	 */ 
-	#define EXA_PREPARE_DEST	0
-	/**
-	 * EXA_PREPARE_SRC is the index for a pixmap that may be read from
-	 */
-	#define EXA_PREPARE_SRC		1
-	/**
-	 * EXA_PREPARE_SRC is the index for a second pixmap that may be read
-	 * from.
-	 */
-	#define EXA_PREPARE_MASK	2
-	/**
-	 * EXA_PREPARE_AUX* are additional indices for other purposes, e.g.
-	 * separate alpha maps with Composite operations.
-	 */
-	#define EXA_PREPARE_AUX_DEST	3
-	#define EXA_PREPARE_AUX_SRC	4
-	#define EXA_PREPARE_AUX_MASK	5
-	#define EXA_NUM_PREPARE_INDICES	6
-	/** @} */
-
-    /**
-     * maxPitchPixels controls the pitch limitation for rendering from
-     * the card.
-     * The driver should never receive a request for rendering a pixmap
-     * that has a pitch (in pixels) beyond maxPitchPixels.
-     *
-     * Setting this field is optional -- if your hardware doesn't have
-     * a pitch limitation in pixels, don't set this. If neither this value
-     * nor maxPitchBytes is set, then maxPitchPixels is set to maxX.
-     * If set, it must not be smaller than maxX.
-     *
-     * @sa maxPitchBytes
-     */
-    int maxPitchPixels;
-
-    /**
-     * maxPitchBytes controls the pitch limitation for rendering from
-     * the card.
-     * The driver should never receive a request for rendering a pixmap
-     * that has a pitch (in bytes) beyond maxPitchBytes.
-     *
-     * Setting this field is optional -- if your hardware doesn't have
-     * a pitch limitation in bytes, don't set this.
-     * If set, it must not be smaller than maxX * 4.
-     * There's no default value for maxPitchBytes.
-     *
-     * @sa maxPitchPixels
-     */
-    int maxPitchBytes;
-
-    /* Hooks to allow driver to its own pixmap memory management */
-    void *(*CreatePixmap)(ScreenPtr pScreen, int size, int align);
-    void (*DestroyPixmap)(ScreenPtr pScreen, void *driverPriv);
-    /**
-     * Returning a pixmap with non-NULL devPrivate.ptr implies a pixmap which is
-     * not offscreen, which will never be accelerated and Prepare/FinishAccess won't
-     * be called.
-     */
-    Bool (*ModifyPixmapHeader)(PixmapPtr pPixmap, int width, int height,
-                              int depth, int bitsPerPixel, int devKind,
-                              pointer pPixData);
-
-    /* hooks for drivers with tiling support:
-     * driver MUST fill out new_fb_pitch with valid pitch of pixmap
-     */
-    void *(*CreatePixmap2)(ScreenPtr pScreen, int width, int height,
-			   int depth, int class, int bitsPerPixel,
-			   int *new_fb_pitch);
-    /** @} */
-} ExaDriverRec, *ExaDriverPtr;
-
-/** @name EXA driver flags
- * @{
- */
-/**
- * EXA_OFFSCREEN_PIXMAPS indicates to EXA that the driver can support 
- * offscreen pixmaps.
- */
-#define EXA_OFFSCREEN_PIXMAPS		(1 << 0)
-
-/**
- * EXA_OFFSCREEN_ALIGN_POT indicates to EXA that the driver needs pixmaps
- * to have a power-of-two pitch.
- */
-#define EXA_OFFSCREEN_ALIGN_POT		(1 << 1)
-
-/**
- * EXA_TWO_BITBLT_DIRECTIONS indicates to EXA that the driver can only
- * support copies that are (left-to-right, top-to-bottom) or
- * (right-to-left, bottom-to-top).
- */
-#define EXA_TWO_BITBLT_DIRECTIONS	(1 << 2)
-
-/**
- * EXA_HANDLES_PIXMAPS indicates to EXA that the driver can handle
- * all pixmap addressing and migration.
- */
-#define EXA_HANDLES_PIXMAPS             (1 << 3)
-
-/**
- * EXA_SUPPORTS_PREPARE_AUX indicates to EXA that the driver can handle the
- * EXA_PREPARE_AUX* indices in the Prepare/FinishAccess hooks. If there are no
- * such hooks, this flag has no effect.
- */
-#define EXA_SUPPORTS_PREPARE_AUX        (1 << 4)
-
-/**
- * EXA_SUPPORTS_OFFSCREEN_OVERLAPS indicates to EXA that the driver Copy hooks
- * can handle the source and destination occupying overlapping offscreen memory
- * areas. This allows the offscreen memory defragmentation code to defragment
- * areas where the defragmented position overlaps the fragmented position.
- *
- * Typically this is supported by traditional 2D engines but not by 3D engines.
- */
-#define EXA_SUPPORTS_OFFSCREEN_OVERLAPS (1 << 5)
-
-/**
- * EXA_MIXED_PIXMAPS will hide unacceleratable pixmaps from drivers and manage the
- * problem known software fallbacks like trapezoids. This only migrates pixmaps one way
- * into a driver pixmap and then pins it.
- */
-#define EXA_MIXED_PIXMAPS (1 << 6)
-
-/** @} */
-
-/* in exa.c */
-extern _X_EXPORT ExaDriverPtr
-exaDriverAlloc(void);
-
-extern _X_EXPORT Bool
-exaDriverInit(ScreenPtr      pScreen,
-              ExaDriverPtr   pScreenInfo);
-
-extern _X_EXPORT void
-exaDriverFini(ScreenPtr      pScreen);
-
-extern _X_EXPORT void
-exaMarkSync(ScreenPtr pScreen);
-extern _X_EXPORT void
-exaWaitSync(ScreenPtr pScreen);
-
-extern _X_EXPORT unsigned long
-exaGetPixmapOffset(PixmapPtr pPix);
-
-extern _X_EXPORT unsigned long
-exaGetPixmapPitch(PixmapPtr pPix);
-
-extern _X_EXPORT unsigned long
-exaGetPixmapSize(PixmapPtr pPix);
-
-extern _X_EXPORT void *
-exaGetPixmapDriverPrivate(PixmapPtr p);
-
-
-/* in exa_offscreen.c */
-extern _X_EXPORT ExaOffscreenArea *
-exaOffscreenAlloc(ScreenPtr pScreen, int size, int align,
-                  Bool locked,
-                  ExaOffscreenSaveProc save,
-                  pointer privData);
-
-extern _X_EXPORT ExaOffscreenArea *
-exaOffscreenFree(ScreenPtr pScreen, ExaOffscreenArea *area);
-
-extern _X_EXPORT void
-ExaOffscreenMarkUsed (PixmapPtr pPixmap);
-
-extern _X_EXPORT void
-exaEnableDisableFBAccess (int index, Bool enable);
-
-extern _X_EXPORT Bool
-exaDrawableIsOffscreen (DrawablePtr pDrawable);
-
-/* in exa.c */
-extern _X_EXPORT void
-exaMoveInPixmap (PixmapPtr pPixmap);
-
-extern _X_EXPORT void
-exaMoveOutPixmap (PixmapPtr pPixmap);
-
-
-/* in exa_unaccel.c */
-extern _X_EXPORT CARD32
-exaGetPixmapFirstPixel (PixmapPtr pPixmap);
-
-
-/**
- * Returns TRUE if the given planemask covers all the significant bits in the
- * pixel values for pDrawable.
- */
-#define EXA_PM_IS_SOLID(_pDrawable, _pm) \
-	(((_pm) & FbFullMask((_pDrawable)->depth)) == \
-	 FbFullMask((_pDrawable)->depth))
-
-#endif /* EXA_H */
+/*

+ *

+ * Copyright (C) 2000 Keith Packard

+ *               2004 Eric Anholt

+ *               2005 Zack Rusin

+ *

+ * 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 copyright holders not be used in

+ * advertising or publicity pertaining to distribution of the software without

+ * specific, written prior permission. 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.

+ */

+

+/** @file

+ * This is the header containing the public API of EXA for exa drivers.

+ */

+

+#ifndef EXA_H

+#define EXA_H

+

+#include "scrnintstr.h"

+#include "pixmapstr.h"

+#include "windowstr.h"

+#include "gcstruct.h"

+#include "picturestr.h"

+#include "fb.h"

+

+#define EXA_VERSION_MAJOR   2

+#define EXA_VERSION_MINOR   5

+#define EXA_VERSION_RELEASE 0

+

+typedef struct _ExaOffscreenArea ExaOffscreenArea;

+

+typedef void (*ExaOffscreenSaveProc) (ScreenPtr pScreen, ExaOffscreenArea *area);

+

+typedef enum _ExaOffscreenState {

+    ExaOffscreenAvail,

+    ExaOffscreenRemovable,

+    ExaOffscreenLocked

+} ExaOffscreenState;

+

+struct _ExaOffscreenArea {

+    int                 base_offset;	/* allocation base */

+    int                 offset;         /* aligned offset */

+    int                 size;           /* total allocation size */

+    unsigned            last_use;

+    pointer             privData;

+

+    ExaOffscreenSaveProc save;

+

+    ExaOffscreenState   state;

+

+    ExaOffscreenArea    *next;

+

+    unsigned            eviction_cost;

+

+    ExaOffscreenArea    *prev;          /* Double-linked list for defragmentation */

+    int                 align;          /* required alignment */

+};

+

+/**

+ * The ExaDriver structure is allocated through exaDriverAlloc(), and then

+ * fllled in by drivers.

+ */

+typedef struct _ExaDriver {

+    /**

+     * exa_major and exa_minor should be set by the driver to the version of

+     * EXA which the driver was compiled for (or configures itself at runtime

+     * to support).  This allows EXA to extend the structure for new features

+     * without breaking ABI for drivers compiled against older versions.

+     */

+    int exa_major, exa_minor;

+

+    /**

+     * memoryBase is the address of the beginning of framebuffer memory.

+     * The visible screen should be within memoryBase to memoryBase +

+     * memorySize.

+     */

+    CARD8         *memoryBase;

+

+    /**

+     * offScreenBase is the offset from memoryBase of the beginning of the area

+     * to be managed by EXA's linear offscreen memory manager.

+     *

+     * In XFree86 DDX drivers, this is probably:

+     *   (pScrn->displayWidth * cpp * pScrn->virtualY)

+     */

+    unsigned long  offScreenBase;

+

+    /**

+     * memorySize is the length (in bytes) of framebuffer memory beginning

+     * from memoryBase.

+     *

+     * The offscreen memory manager will manage the area beginning at

+     * (memoryBase + offScreenBase), with a length of (memorySize -

+     * offScreenBase)

+     *

+     * In XFree86 DDX drivers, this is probably (pScrn->videoRam * 1024)

+     */

+    unsigned long memorySize;

+

+    /**

+     * pixmapOffsetAlign is the byte alignment necessary for pixmap offsets

+     * within framebuffer.

+     *

+     * Hardware typically has a required alignment of offsets, which may or may

+     * not be a power of two.  EXA will ensure that pixmaps managed by the

+     * offscreen memory manager meet this alignment requirement.

+     */

+    int pixmapOffsetAlign;

+

+    /**

+     * pixmapPitchAlign is the byte alignment necessary for pixmap pitches

+     * within the framebuffer.

+     *

+     * Hardware typically has a required alignment of pitches for acceleration.

+     * For 3D hardware, Composite acceleration often requires that source and

+     * mask pixmaps (textures) have a power-of-two pitch, which can be demanded

+     * using EXA_OFFSCREEN_ALIGN_POT.  These pitch requirements only apply to

+     * pixmaps managed by the offscreen memory manager.  Thus, it is up to the

+     * driver to ensure that the visible screen has an appropriate pitch for

+     * acceleration.

+     */

+    int pixmapPitchAlign;

+

+    /**

+     * The flags field is bitfield of boolean values controlling EXA's behavior.

+     *

+     * The flags in clude EXA_OFFSCREEN_PIXMAPS, EXA_OFFSCREEN_ALIGN_POT, and

+     * EXA_TWO_BITBLT_DIRECTIONS.

+     */

+    int flags;

+

+    /** @{ */

+    /**

+     * maxX controls the X coordinate limitation for rendering from the card.

+     * The driver should never receive a request for rendering beyond maxX

+     * in the X direction from the origin of a pixmap.

+     */

+    int maxX;

+

+    /**

+     * maxY controls the Y coordinate limitation for rendering from the card.

+     * The driver should never receive a request for rendering beyond maxY

+     * in the Y direction from the origin of a pixmap.

+     */

+    int maxY;

+    /** @} */

+

+    /* private */

+    ExaOffscreenArea *offScreenAreas;

+    Bool              needsSync;

+    int               lastMarker;

+

+    /** @name Solid

+     * @{

+     */

+    /**

+     * PrepareSolid() sets up the driver for doing a solid fill.

+     * @param pPixmap Destination pixmap

+     * @param alu raster operation

+     * @param planemask write mask for the fill

+     * @param fg "foreground" color for the fill

+     *

+     * This call should set up the driver for doing a series of solid fills

+     * through the Solid() call.  The alu raster op is one of the GX*

+     * graphics functions listed in X.h, and typically maps to a similar

+     * single-byte "ROP" setting in all hardware.  The planemask controls

+     * which bits of the destination should be affected, and will only represent

+     * the bits up to the depth of pPixmap.  The fg is the pixel value of the

+     * foreground color referred to in ROP descriptions.

+     *

+     * Note that many drivers will need to store some of the data in the driver

+     * private record, for sending to the hardware with each drawing command.

+     *

+     * The PrepareSolid() call is required of all drivers, but it may fail for any

+     * reason.  Failure results in a fallback to software rendering.

+     */

+    Bool        (*PrepareSolid) (PixmapPtr      pPixmap,

+                                 int            alu,

+                                 Pixel          planemask,

+                                 Pixel          fg);

+

+    /**

+     * Solid() performs a solid fill set up in the last PrepareSolid() call.

+     *

+     * @param pPixmap destination pixmap

+     * @param x1 left coordinate

+     * @param y1 top coordinate

+     * @param x2 right coordinate

+     * @param y2 bottom coordinate

+     *

+     * Performs the fill set up by the last PrepareSolid() call, covering the

+     * area from (x1,y1) to (x2,y2) in pPixmap.  Note that the coordinates are

+     * in the coordinate space of the destination pixmap, so the driver will

+     * need to set up the hardware's offset and pitch for the destination

+     * coordinates according to the pixmap's offset and pitch within

+     * framebuffer.  This likely means using exaGetPixmapOffset() and

+     * exaGetPixmapPitch().

+     *

+     * This call is required if PrepareSolid() ever succeeds.

+     */

+    void        (*Solid) (PixmapPtr      pPixmap, int x1, int y1, int x2, int y2);

+

+    /**

+     * DoneSolid() finishes a set of solid fills.

+     *

+     * @param pPixmap destination pixmap.

+     *

+     * The DoneSolid() call is called at the end of a series of consecutive

+     * Solid() calls following a successful PrepareSolid().  This allows drivers

+     * to finish up emitting drawing commands that were buffered, or clean up

+     * state from PrepareSolid().

+     *

+     * This call is required if PrepareSolid() ever succeeds.

+     */

+    void        (*DoneSolid) (PixmapPtr      pPixmap);

+    /** @} */

+

+    /** @name Copy

+     * @{

+     */

+    /**

+     * PrepareCopy() sets up the driver for doing a copy within video 

+     * memory.

+     *

+     * @param pSrcPixmap source pixmap

+     * @param pDstPixmap destination pixmap

+     * @param dx X copy direction

+     * @param dy Y copy direction

+     * @param alu raster operation

+     * @param planemask write mask for the fill

+     *

+     * This call should set up the driver for doing a series of copies from the

+     * the pSrcPixmap to the pDstPixmap.  The dx flag will be positive if the

+     * hardware should do the copy from the left to the right, and dy will be

+     * positive if the copy should be done from the top to the bottom.  This

+     * is to deal with self-overlapping copies when pSrcPixmap == pDstPixmap.

+     * If your hardware can only support blits that are (left to right, top to

+     * bottom) or (right to left, bottom to top), then you should set

+     * #EXA_TWO_BITBLT_DIRECTIONS, and EXA will break down Copy operations to

+     * ones that meet those requirements.  The alu raster op is one of the GX*

+     * graphics functions listed in X.h, and typically maps to a similar

+     * single-byte "ROP" setting in all hardware.  The planemask controls which

+     * bits of the destination should be affected, and will only represent the

+     * bits up to the depth of pPixmap.

+     *

+     * Note that many drivers will need to store some of the data in the driver

+     * private record, for sending to the hardware with each drawing command.

+     *

+     * The PrepareCopy() call is required of all drivers, but it may fail for any

+     * reason.  Failure results in a fallback to software rendering.

+     */

+    Bool        (*PrepareCopy) (PixmapPtr       pSrcPixmap,

+                                PixmapPtr       pDstPixmap,

+                                int             dx,

+                                int             dy,

+                                int             alu,

+                                Pixel           planemask);

+

+    /**

+     * Copy() performs a copy set up in the last PrepareCopy call.

+     *

+     * @param pDstPixmap destination pixmap

+     * @param srcX source X coordinate

+     * @param srcY source Y coordinate

+     * @param dstX destination X coordinate

+     * @param dstY destination Y coordinate

+     * @param width width of the rectangle to be copied

+     * @param height height of the rectangle to be copied.

+     *

+     * Performs the copy set up by the last PrepareCopy() call, copying the

+     * rectangle from (srcX, srcY) to (srcX + width, srcY + width) in the source

+     * pixmap to the same-sized rectangle at (dstX, dstY) in the destination

+     * pixmap.  Those rectangles may overlap in memory, if

+     * pSrcPixmap == pDstPixmap.  Note that this call does not receive the

+     * pSrcPixmap as an argument -- if it's needed in this function, it should

+     * be stored in the driver private during PrepareCopy().  As with Solid(),

+     * the coordinates are in the coordinate space of each pixmap, so the driver

+     * will need to set up source and destination pitches and offsets from those

+     * pixmaps, probably using exaGetPixmapOffset() and exaGetPixmapPitch().

+     *

+     * This call is required if PrepareCopy ever succeeds.

+     */

+    void        (*Copy) (PixmapPtr       pDstPixmap,

+                         int    srcX,

+                         int    srcY,

+                         int    dstX,

+                         int    dstY,

+                         int    width,

+                         int    height);

+

+    /**

+     * DoneCopy() finishes a set of copies.

+     *

+     * @param pPixmap destination pixmap.

+     *

+     * The DoneCopy() call is called at the end of a series of consecutive

+     * Copy() calls following a successful PrepareCopy().  This allows drivers

+     * to finish up emitting drawing commands that were buffered, or clean up

+     * state from PrepareCopy().

+     *

+     * This call is required if PrepareCopy() ever succeeds.

+     */

+    void        (*DoneCopy) (PixmapPtr       pDstPixmap);

+    /** @} */

+

+    /** @name Composite

+     * @{

+     */

+    /**

+     * CheckComposite() checks to see if a composite operation could be

+     * accelerated.

+     *

+     * @param op Render operation

+     * @param pSrcPicture source Picture

+     * @param pMaskPicture mask picture

+     * @param pDstPicture destination Picture

+     *

+     * The CheckComposite() call checks if the driver could handle acceleration

+     * of op with the given source, mask, and destination pictures.  This allows

+     * drivers to check source and destination formats, supported operations,

+     * transformations, and component alpha state, and send operations it can't

+     * support to software rendering early on.  This avoids costly pixmap

+     * migration to the wrong places when the driver can't accelerate

+     * operations.  Note that because migration hasn't happened, the driver

+     * can't know during CheckComposite() what the offsets and pitches of the

+     * pixmaps are going to be.

+     *

+     * See PrepareComposite() for more details on likely issues that drivers

+     * will have in accelerating Composite operations.

+     *

+     * The CheckComposite() call is recommended if PrepareComposite() is

+     * implemented, but is not required.

+     */

+    Bool        (*CheckComposite) (int          op,

+                                   PicturePtr   pSrcPicture,

+                                   PicturePtr   pMaskPicture,

+                                   PicturePtr   pDstPicture);

+

+    /**

+     * PrepareComposite() sets up the driver for doing a Composite operation

+     * described in the Render extension protocol spec.

+     *

+     * @param op Render operation

+     * @param pSrcPicture source Picture

+     * @param pMaskPicture mask picture

+     * @param pDstPicture destination Picture

+     * @param pSrc source pixmap

+     * @param pMask mask pixmap

+     * @param pDst destination pixmap

+     *

+     * This call should set up the driver for doing a series of Composite

+     * operations, as described in the Render protocol spec, with the given

+     * pSrcPicture, pMaskPicture, and pDstPicture.  The pSrc, pMask, and

+     * pDst are the pixmaps containing the pixel data, and should be used for

+     * setting the offset and pitch used for the coordinate spaces for each of

+     * the Pictures.

+     *

+     * Notes on interpreting Picture structures:

+     * - The Picture structures will always have a valid pDrawable.

+     * - The Picture structures will never have alphaMap set.

+     * - The mask Picture (and therefore pMask) may be NULL, in which case the

+     *   operation is simply src OP dst instead of src IN mask OP dst, and

+     *   mask coordinates should be ignored.

+     * - pMarkPicture may have componentAlpha set, which greatly changes

+     *   the behavior of the Composite operation.  componentAlpha has no effect

+     *   when set on pSrcPicture or pDstPicture.

+     * - The source and mask Pictures may have a transformation set

+     *   (Picture->transform != NULL), which means that the source coordinates

+     *   should be transformed by that transformation, resulting in scaling,

+     *   rotation, etc.  The PictureTransformPoint() call can transform

+     *   coordinates for you.  Transforms have no effect on Pictures when used

+     *   as a destination.

+     * - The source and mask pictures may have a filter set.  PictFilterNearest

+     *   and PictFilterBilinear are defined in the Render protocol, but others

+     *   may be encountered, and must be handled correctly (usually by

+     *   PrepareComposite failing, and falling back to software).  Filters have

+     *   no effect on Pictures when used as a destination.

+     * - The source and mask Pictures may have repeating set, which must be

+     *   respected.  Many chipsets will be unable to support repeating on

+     *   pixmaps that have a width or height that is not a power of two.

+     *

+     * If your hardware can't support source pictures (textures) with

+     * non-power-of-two pitches, you should set #EXA_OFFSCREEN_ALIGN_POT.

+     *

+     * Note that many drivers will need to store some of the data in the driver

+     * private record, for sending to the hardware with each drawing command.

+     *

+     * The PrepareComposite() call is not required.  However, it is highly

+     * recommended for performance of antialiased font rendering and performance

+     * of cairo applications.  Failure results in a fallback to software

+     * rendering.

+     */

+    Bool        (*PrepareComposite) (int                op,

+                                     PicturePtr         pSrcPicture,

+                                     PicturePtr         pMaskPicture,

+                                     PicturePtr         pDstPicture,

+                                     PixmapPtr          pSrc,

+                                     PixmapPtr          pMask,

+                                     PixmapPtr          pDst);

+

+    /**

+     * Composite() performs a Composite operation set up in the last

+     * PrepareComposite() call.

+     *

+     * @param pDstPixmap destination pixmap

+     * @param srcX source X coordinate

+     * @param srcY source Y coordinate

+     * @param maskX source X coordinate

+     * @param maskY source Y coordinate

+     * @param dstX destination X coordinate

+     * @param dstY destination Y coordinate

+     * @param width destination rectangle width

+     * @param height destination rectangle height

+     *

+     * Performs the Composite operation set up by the last PrepareComposite()

+     * call, to the rectangle from (dstX, dstY) to (dstX + width, dstY + height)

+     * in the destination Pixmap.  Note that if a transformation was set on

+     * the source or mask Pictures, the source rectangles may not be the same

+     * size as the destination rectangles and filtering.  Getting the coordinate

+     * transformation right at the subpixel level can be tricky, and rendercheck

+     * can test this for you.

+     *

+     * This call is required if PrepareComposite() ever succeeds.

+     */

+    void        (*Composite) (PixmapPtr         pDst,

+                              int       srcX,

+                              int        srcY,

+                              int        maskX,

+                              int        maskY,

+                              int        dstX,

+                              int        dstY,

+                              int        width,

+                              int        height);

+

+    /**

+     * DoneComposite() finishes a set of Composite operations.

+     *

+     * @param pPixmap destination pixmap.

+     *

+     * The DoneComposite() call is called at the end of a series of consecutive

+     * Composite() calls following a successful PrepareComposite().  This allows

+     * drivers to finish up emitting drawing commands that were buffered, or

+     * clean up state from PrepareComposite().

+     *

+     * This call is required if PrepareComposite() ever succeeds.

+     */

+    void        (*DoneComposite) (PixmapPtr         pDst);

+    /** @} */

+

+    /**

+     * UploadToScreen() loads a rectangle of data from src into pDst.

+     *

+     * @param pDst destination pixmap

+     * @param x destination X coordinate.

+     * @param y destination Y coordinate

+     * @param width width of the rectangle to be copied

+     * @param height height of the rectangle to be copied

+     * @param src pointer to the beginning of the source data

+     * @param src_pitch pitch (in bytes) of the lines of source data.

+     *

+     * UploadToScreen() copies data in system memory beginning at src (with

+     * pitch src_pitch) into the destination pixmap from (x, y) to

+     * (x + width, y + height).  This is typically done with hostdata uploads,

+     * where the CPU sets up a blit command on the hardware with instructions

+     * that the blit data will be fed through some sort of aperture on the card.

+     *

+     * If UploadToScreen() is performed asynchronously, it is up to the driver

+     * to call exaMarkSync().  This is in contrast to most other acceleration

+     * calls in EXA.

+     *

+     * UploadToScreen() can aid in pixmap migration, but is most important for

+     * the performance of exaGlyphs() (antialiased font drawing) by allowing

+     * pipelining of data uploads, avoiding a sync of the card after each glyph.

+     * 

+     * @return TRUE if the driver successfully uploaded the data.  FALSE

+     * indicates that EXA should fall back to doing the upload in software.

+     *

+     * UploadToScreen() is not required, but is recommended if Composite

+     * acceleration is supported.

+     */

+    Bool        (*UploadToScreen) (PixmapPtr            pDst,

+				   int                  x,

+				   int                  y,

+				   int                  w,

+				   int                  h,

+                                   char                 *src,

+                                   int                  src_pitch);

+

+    /**

+     * UploadToScratch() is no longer used and will be removed next time the EXA

+     * major version needs to be bumped.

+     */

+    Bool        (*UploadToScratch) (PixmapPtr           pSrc,

+                                    PixmapPtr           pDst);

+

+    /**

+     * DownloadFromScreen() loads a rectangle of data from pSrc into dst

+     *

+     * @param pSrc source pixmap

+     * @param x source X coordinate.

+     * @param y source Y coordinate

+     * @param width width of the rectangle to be copied

+     * @param height height of the rectangle to be copied

+     * @param dst pointer to the beginning of the destination data

+     * @param dst_pitch pitch (in bytes) of the lines of destination data.

+     *

+     * DownloadFromScreen() copies data from offscreen memory in pSrc from

+     * (x, y) to (x + width, y + height), to system memory starting at

+     * dst (with pitch dst_pitch).  This would usually be done

+     * using scatter-gather DMA, supported by a DRM call, or by blitting to AGP

+     * and then synchronously reading from AGP.  Because the implementation

+     * might be synchronous, EXA leaves it up to the driver to call

+     * exaMarkSync() if DownloadFromScreen() was asynchronous.  This is in

+     * contrast to most other acceleration calls in EXA.

+     *

+     * DownloadFromScreen() can aid in the largest bottleneck in pixmap

+     * migration, which is the read from framebuffer when evicting pixmaps from

+     * framebuffer memory.  Thus, it is highly recommended, even though

+     * implementations are typically complicated.

+     * 

+     * @return TRUE if the driver successfully downloaded the data.  FALSE

+     * indicates that EXA should fall back to doing the download in software.

+     *

+     * DownloadFromScreen() is not required, but is highly recommended.

+     */

+    Bool (*DownloadFromScreen)(PixmapPtr pSrc,

+                               int x,  int y,

+                               int w,  int h,

+                               char *dst,  int dst_pitch);

+

+    /**

+     * MarkSync() requests that the driver mark a synchronization point,

+     * returning an driver-defined integer marker which could be requested for

+     * synchronization to later in WaitMarker().  This might be used in the

+     * future to avoid waiting for full hardware stalls before accessing pixmap

+     * data with the CPU, but is not important in the current incarnation of

+     * EXA.

+     *

+     * Note that drivers should call exaMarkSync() when they have done some

+     * acceleration, rather than their own MarkSync() handler, as otherwise EXA

+     * will be unaware of the driver's acceleration and not sync to it during

+     * fallbacks.

+     *

+     * MarkSync() is optional.

+     */

+    int		(*MarkSync)   (ScreenPtr pScreen);

+

+    /**

+     * WaitMarker() waits for all rendering before the given marker to have

+     * completed.  If the driver does not implement MarkSync(), marker is

+     * meaningless, and all rendering by the hardware should be completed before

+     * WaitMarker() returns.

+     *

+     * Note that drivers should call exaWaitSync() to wait for all acceleration

+     * to finish, as otherwise EXA will be unaware of the driver having

+     * synchronized, resulting in excessive WaitMarker() calls.

+     *

+     * WaitMarker() is required of all drivers.

+     */

+    void	(*WaitMarker) (ScreenPtr pScreen, int marker);

+

+    /** @{ */

+    /**

+     * PrepareAccess() is called before CPU access to an offscreen pixmap.

+     *

+     * @param pPix the pixmap being accessed

+     * @param index the index of the pixmap being accessed.

+     *

+     * PrepareAccess() will be called before CPU access to an offscreen pixmap.

+     * This can be used to set up hardware surfaces for byteswapping or

+     * untiling, or to adjust the pixmap's devPrivate.ptr for the purpose of

+     * making CPU access use a different aperture.

+     *

+     * The index is one of #EXA_PREPARE_DEST, #EXA_PREPARE_SRC,

+     * #EXA_PREPARE_MASK, #EXA_PREPARE_AUX_DEST, #EXA_PREPARE_AUX_SRC, or

+     * #EXA_PREPARE_AUX_MASK. Since only up to #EXA_NUM_PREPARE_INDICES pixmaps

+     * will have PrepareAccess() called on them per operation, drivers can have

+     * a small, statically-allocated space to maintain state for PrepareAccess()

+     * and FinishAccess() in.  Note that PrepareAccess() is only called once per

+     * pixmap and operation, regardless of whether the pixmap is used as a

+     * destination and/or source, and the index may not reflect the usage.

+     *

+     * PrepareAccess() may fail.  An example might be the case of hardware that

+     * can set up 1 or 2 surfaces for CPU access, but not 3.  If PrepareAccess()

+     * fails, EXA will migrate the pixmap to system memory.

+     * DownloadFromScreen() must be implemented and must not fail if a driver

+     * wishes to fail in PrepareAccess().  PrepareAccess() must not fail when

+     * pPix is the visible screen, because the visible screen can not be

+     * migrated.

+     *

+     * @return TRUE if PrepareAccess() successfully prepared the pixmap for CPU

+     * drawing.

+     * @return FALSE if PrepareAccess() is unsuccessful and EXA should use

+     * DownloadFromScreen() to migate the pixmap out.

+     */

+    Bool	(*PrepareAccess)(PixmapPtr pPix, int index);

+

+    /**

+     * FinishAccess() is called after CPU access to an offscreen pixmap.

+     *

+     * @param pPix the pixmap being accessed

+     * @param index the index of the pixmap being accessed.

+     *

+     * FinishAccess() will be called after finishing CPU access of an offscreen

+     * pixmap set up by PrepareAccess().  Note that the FinishAccess() will not be

+     * called if PrepareAccess() failed and the pixmap was migrated out.

+     */

+    void	(*FinishAccess)(PixmapPtr pPix, int index);

+

+    /**

+     * PixmapIsOffscreen() is an optional driver replacement to

+     * exaPixmapHasGpuCopy(). Set to NULL if you want the standard behaviour

+     * of exaPixmapHasGpuCopy().

+     *

+     * @param pPix the pixmap

+     * @return TRUE if the given drawable is in framebuffer memory.

+     *

+     * exaPixmapHasGpuCopy() is used to determine if a pixmap is in offscreen

+     * memory, meaning that acceleration could probably be done to it, and that it

+     * will need to be wrapped by PrepareAccess()/FinishAccess() when accessing it

+     * with the CPU.

+     *

+     *

+     */

+    Bool	(*PixmapIsOffscreen)(PixmapPtr pPix);

+

+	/** @name PrepareAccess() and FinishAccess() indices

+	 * @{

+	 */

+	/**

+	 * EXA_PREPARE_DEST is the index for a pixmap that may be drawn to or

+	 * read from.

+	 */ 

+	#define EXA_PREPARE_DEST	0

+	/**

+	 * EXA_PREPARE_SRC is the index for a pixmap that may be read from

+	 */

+	#define EXA_PREPARE_SRC		1

+	/**

+	 * EXA_PREPARE_SRC is the index for a second pixmap that may be read

+	 * from.

+	 */

+	#define EXA_PREPARE_MASK	2

+	/**

+	 * EXA_PREPARE_AUX* are additional indices for other purposes, e.g.

+	 * separate alpha maps with Composite operations.

+	 */

+	#define EXA_PREPARE_AUX_DEST	3

+	#define EXA_PREPARE_AUX_SRC	4

+	#define EXA_PREPARE_AUX_MASK	5

+	#define EXA_NUM_PREPARE_INDICES	6

+	/** @} */

+

+    /**

+     * maxPitchPixels controls the pitch limitation for rendering from

+     * the card.

+     * The driver should never receive a request for rendering a pixmap

+     * that has a pitch (in pixels) beyond maxPitchPixels.

+     *

+     * Setting this field is optional -- if your hardware doesn't have

+     * a pitch limitation in pixels, don't set this. If neither this value

+     * nor maxPitchBytes is set, then maxPitchPixels is set to maxX.

+     * If set, it must not be smaller than maxX.

+     *

+     * @sa maxPitchBytes

+     */

+    int maxPitchPixels;

+

+    /**

+     * maxPitchBytes controls the pitch limitation for rendering from

+     * the card.

+     * The driver should never receive a request for rendering a pixmap

+     * that has a pitch (in bytes) beyond maxPitchBytes.

+     *

+     * Setting this field is optional -- if your hardware doesn't have

+     * a pitch limitation in bytes, don't set this.

+     * If set, it must not be smaller than maxX * 4.

+     * There's no default value for maxPitchBytes.

+     *

+     * @sa maxPitchPixels

+     */

+    int maxPitchBytes;

+

+    /* Hooks to allow driver to its own pixmap memory management */

+    void *(*CreatePixmap)(ScreenPtr pScreen, int size, int align);

+    void (*DestroyPixmap)(ScreenPtr pScreen, void *driverPriv);

+    /**

+     * Returning a pixmap with non-NULL devPrivate.ptr implies a pixmap which is

+     * not offscreen, which will never be accelerated and Prepare/FinishAccess won't

+     * be called.

+     */

+    Bool (*ModifyPixmapHeader)(PixmapPtr pPixmap, int width, int height,

+                              int depth, int bitsPerPixel, int devKind,

+                              pointer pPixData);

+

+    /* hooks for drivers with tiling support:

+     * driver MUST fill out new_fb_pitch with valid pitch of pixmap

+     */

+    void *(*CreatePixmap2)(ScreenPtr pScreen, int width, int height,

+			   int depth, int usage_hint, int bitsPerPixel,

+			   int *new_fb_pitch);

+    /** @} */

+} ExaDriverRec, *ExaDriverPtr;

+

+/** @name EXA driver flags

+ * @{

+ */

+/**

+ * EXA_OFFSCREEN_PIXMAPS indicates to EXA that the driver can support 

+ * offscreen pixmaps.

+ */

+#define EXA_OFFSCREEN_PIXMAPS		(1 << 0)

+

+/**

+ * EXA_OFFSCREEN_ALIGN_POT indicates to EXA that the driver needs pixmaps

+ * to have a power-of-two pitch.

+ */

+#define EXA_OFFSCREEN_ALIGN_POT		(1 << 1)

+

+/**

+ * EXA_TWO_BITBLT_DIRECTIONS indicates to EXA that the driver can only

+ * support copies that are (left-to-right, top-to-bottom) or

+ * (right-to-left, bottom-to-top).

+ */

+#define EXA_TWO_BITBLT_DIRECTIONS	(1 << 2)

+

+/**

+ * EXA_HANDLES_PIXMAPS indicates to EXA that the driver can handle

+ * all pixmap addressing and migration.

+ */

+#define EXA_HANDLES_PIXMAPS             (1 << 3)

+

+/**

+ * EXA_SUPPORTS_PREPARE_AUX indicates to EXA that the driver can handle the

+ * EXA_PREPARE_AUX* indices in the Prepare/FinishAccess hooks. If there are no

+ * such hooks, this flag has no effect.

+ */

+#define EXA_SUPPORTS_PREPARE_AUX        (1 << 4)

+

+/**

+ * EXA_SUPPORTS_OFFSCREEN_OVERLAPS indicates to EXA that the driver Copy hooks

+ * can handle the source and destination occupying overlapping offscreen memory

+ * areas. This allows the offscreen memory defragmentation code to defragment

+ * areas where the defragmented position overlaps the fragmented position.

+ *

+ * Typically this is supported by traditional 2D engines but not by 3D engines.

+ */

+#define EXA_SUPPORTS_OFFSCREEN_OVERLAPS (1 << 5)

+

+/**

+ * EXA_MIXED_PIXMAPS will hide unacceleratable pixmaps from drivers and manage the

+ * problem known software fallbacks like trapezoids. This only migrates pixmaps one way

+ * into a driver pixmap and then pins it.

+ */

+#define EXA_MIXED_PIXMAPS (1 << 6)

+

+/** @} */

+

+/* in exa.c */

+extern _X_EXPORT ExaDriverPtr

+exaDriverAlloc(void);

+

+extern _X_EXPORT Bool

+exaDriverInit(ScreenPtr      pScreen,

+              ExaDriverPtr   pScreenInfo);

+

+extern _X_EXPORT void

+exaDriverFini(ScreenPtr      pScreen);

+

+extern _X_EXPORT void

+exaMarkSync(ScreenPtr pScreen);

+extern _X_EXPORT void

+exaWaitSync(ScreenPtr pScreen);

+

+extern _X_EXPORT unsigned long

+exaGetPixmapOffset(PixmapPtr pPix);

+

+extern _X_EXPORT unsigned long

+exaGetPixmapPitch(PixmapPtr pPix);

+

+extern _X_EXPORT unsigned long

+exaGetPixmapSize(PixmapPtr pPix);

+

+extern _X_EXPORT void *

+exaGetPixmapDriverPrivate(PixmapPtr p);

+

+

+/* in exa_offscreen.c */

+extern _X_EXPORT ExaOffscreenArea *

+exaOffscreenAlloc(ScreenPtr pScreen, int size, int align,

+                  Bool locked,

+                  ExaOffscreenSaveProc save,

+                  pointer privData);

+

+extern _X_EXPORT ExaOffscreenArea *

+exaOffscreenFree(ScreenPtr pScreen, ExaOffscreenArea *area);

+

+extern _X_EXPORT void

+ExaOffscreenMarkUsed (PixmapPtr pPixmap);

+

+extern _X_EXPORT void

+exaEnableDisableFBAccess (int index, Bool enable);

+

+extern _X_EXPORT Bool

+exaDrawableIsOffscreen (DrawablePtr pDrawable);

+

+/* in exa.c */

+extern _X_EXPORT void

+exaMoveInPixmap (PixmapPtr pPixmap);

+

+extern _X_EXPORT void

+exaMoveOutPixmap (PixmapPtr pPixmap);

+

+

+/* in exa_unaccel.c */

+extern _X_EXPORT CARD32

+exaGetPixmapFirstPixel (PixmapPtr pPixmap);

+

+

+/**

+ * Returns TRUE if the given planemask covers all the significant bits in the

+ * pixel values for pDrawable.

+ */

+#define EXA_PM_IS_SOLID(_pDrawable, _pm) \

+	(((_pm) & FbFullMask((_pDrawable)->depth)) == \

+	 FbFullMask((_pDrawable)->depth))

+

+#endif /* EXA_H */

diff --git a/xorg-server/exa/exa_classic.c b/xorg-server/exa/exa_classic.c
index 640b26a12..1a1467848 100644
--- a/xorg-server/exa/exa_classic.c
+++ b/xorg-server/exa/exa_classic.c
@@ -1,266 +1,266 @@
-/*
- * Copyright © 2009 Maarten Maathuis
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <string.h>
-
-#include "exa_priv.h"
-#include "exa.h"
-
-/* This file holds the classic exa specific implementation. */
-
-static _X_INLINE void*
-ExaGetPixmapAddress(PixmapPtr p)
-{
-    ExaPixmapPriv(p);
-
-    if (pExaPixmap->use_gpu_copy && pExaPixmap->fb_ptr)
-	return pExaPixmap->fb_ptr;
-    else
-	return pExaPixmap->sys_ptr;
-}
-
-/**
- * exaCreatePixmap() creates a new pixmap.
- *
- * If width and height are 0, this won't be a full-fledged pixmap and it will
- * get ModifyPixmapHeader() called on it later.  So, we mark it as pinned, because
- * ModifyPixmapHeader() would break migration.  These types of pixmaps are used
- * for scratch pixmaps, or to represent the visible screen.
- */
-PixmapPtr
-exaCreatePixmap_classic(ScreenPtr pScreen, int w, int h, int depth,
-		unsigned class)
-{
-    PixmapPtr pPixmap;
-    ExaPixmapPrivPtr	pExaPixmap;
-    BoxRec box;
-    int bpp;
-    ExaScreenPriv(pScreen);
-
-    if (w > 32767 || h > 32767)
-	return NullPixmap;
-
-    swap(pExaScr, pScreen, CreatePixmap);
-    pPixmap = pScreen->CreatePixmap (pScreen, w, h, depth, class);
-    swap(pExaScr, pScreen, CreatePixmap);
-
-    if (!pPixmap)
-        return NULL;
-
-    pExaPixmap = ExaGetPixmapPriv(pPixmap);
-    pExaPixmap->driverPriv = NULL;
-
-    bpp = pPixmap->drawable.bitsPerPixel;
-
-    pExaPixmap->driverPriv = NULL;
-    /* Scratch pixmaps may have w/h equal to zero, and may not be
-     * migrated.
-     */
-    if (!w || !h)
-	pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED;
-    else
-	pExaPixmap->score = EXA_PIXMAP_SCORE_INIT;
-
-    pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr;
-    pExaPixmap->sys_pitch = pPixmap->devKind;
-
-    pPixmap->devPrivate.ptr = NULL;
-    pExaPixmap->use_gpu_copy = FALSE;
-
-    pExaPixmap->fb_ptr = NULL;
-    exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp);
-    pExaPixmap->fb_size = pExaPixmap->fb_pitch * h;
-
-    if (pExaPixmap->fb_pitch > 131071) {
-	swap(pExaScr, pScreen, DestroyPixmap);
-	pScreen->DestroyPixmap (pPixmap);
-	swap(pExaScr, pScreen, DestroyPixmap);
-	return NULL;
-    }
-
-    /* Set up damage tracking */
-    pExaPixmap->pDamage = DamageCreate (NULL, NULL,
-					DamageReportNone, TRUE,
-					pScreen, pPixmap);
-
-    if (pExaPixmap->pDamage == NULL) {
-	swap(pExaScr, pScreen, DestroyPixmap);
-	pScreen->DestroyPixmap (pPixmap);
-	swap(pExaScr, pScreen, DestroyPixmap);
-	return NULL;
-    }
-
-    DamageRegister (&pPixmap->drawable, pExaPixmap->pDamage);
-    /* This ensures that pending damage reflects the current operation. */
-    /* This is used by exa to optimize migration. */
-    DamageSetReportAfterOp (pExaPixmap->pDamage, TRUE);
-
-    pExaPixmap->area = NULL;
-
-    /* We set the initial pixmap as completely valid for a simple reason.
-     * Imagine a 1000x1000 pixmap, it has 1 million pixels, 250000 of which
-     * could form single pixel rects as part of a region. Setting the complete region
-     * as valid is a natural defragmentation of the region.
-     */
-    box.x1 = 0;
-    box.y1 = 0;
-    box.x2 = w;
-    box.y2 = h;
-    RegionInit(&pExaPixmap->validSys, &box, 0);
-    RegionInit(&pExaPixmap->validFB, &box, 0);
-
-    exaSetAccelBlock(pExaScr, pExaPixmap,
-                     w, h, bpp);
-
-    /* During a fallback we must prepare access. */
-    if (pExaScr->fallback_counter)
-	exaPrepareAccess(&pPixmap->drawable, EXA_PREPARE_AUX_DEST);
-
-    return pPixmap;
-}
-
-Bool
-exaModifyPixmapHeader_classic(PixmapPtr pPixmap, int width, int height, int depth,
-		      int bitsPerPixel, int devKind, pointer pPixData)
-{
-    ScreenPtr pScreen;
-    ExaScreenPrivPtr pExaScr;
-    ExaPixmapPrivPtr pExaPixmap;
-    Bool ret;
-
-    if (!pPixmap)
-        return FALSE;
-
-    pScreen = pPixmap->drawable.pScreen;
-    pExaScr = ExaGetScreenPriv(pScreen);
-    pExaPixmap = ExaGetPixmapPriv(pPixmap);
-
-    if (pExaPixmap) {
-        if (pPixData)
-            pExaPixmap->sys_ptr = pPixData;
-
-        if (devKind > 0)
-            pExaPixmap->sys_pitch = devKind;
-
-	/* Classic EXA:
-	 * - Framebuffer.
-	 * - Scratch pixmap with gpu memory.
-	 */
-	if (pExaScr->info->memoryBase && pPixData) {
-	    if ((CARD8 *)pPixData >= pExaScr->info->memoryBase &&
-		((CARD8 *)pPixData - pExaScr->info->memoryBase) <
-				pExaScr->info->memorySize) {
-		pExaPixmap->fb_ptr = pPixData;
-		pExaPixmap->fb_pitch = devKind;
-		pExaPixmap->use_gpu_copy = TRUE;
-	    }
-	}
-
-        if (width > 0 && height > 0 && bitsPerPixel > 0) {
-            exaSetFbPitch(pExaScr, pExaPixmap,
-                          width, height, bitsPerPixel);
-
-            exaSetAccelBlock(pExaScr, pExaPixmap,
-                             width, height, bitsPerPixel);
-        }
-
-	/* Pixmaps subject to ModifyPixmapHeader will be pinned to system or
-	 * gpu memory, so there's no need to track damage.
-	 */
-	if (pExaPixmap->pDamage) {
-	    DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage);
-	    DamageDestroy(pExaPixmap->pDamage);
-	    pExaPixmap->pDamage = NULL;
-	}
-    }
-
-    swap(pExaScr, pScreen, ModifyPixmapHeader);
-    ret = pScreen->ModifyPixmapHeader(pPixmap, width, height, depth,
-					    bitsPerPixel, devKind, pPixData);
-    swap(pExaScr, pScreen, ModifyPixmapHeader);
-
-    /* Always NULL this, we don't want lingering pointers. */
-    pPixmap->devPrivate.ptr = NULL;
-
-    return ret;
-}
-
-Bool
-exaDestroyPixmap_classic (PixmapPtr pPixmap)
-{
-    ScreenPtr	pScreen = pPixmap->drawable.pScreen;
-    ExaScreenPriv(pScreen);
-    Bool ret;
-
-    if (pPixmap->refcnt == 1)
-    {
-	ExaPixmapPriv (pPixmap);
-
-	exaDestroyPixmap(pPixmap);
-
-	if (pExaPixmap->area)
-	{
-	    DBG_PIXMAP(("-- 0x%p (0x%x) (%dx%d)\n",
-                        (void*)pPixmap->drawable.id,
-			 ExaGetPixmapPriv(pPixmap)->area->offset,
-			 pPixmap->drawable.width,
-			 pPixmap->drawable.height));
-	    /* Free the offscreen area */
-	    exaOffscreenFree (pPixmap->drawable.pScreen, pExaPixmap->area);
-	    pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;
-	    pPixmap->devKind = pExaPixmap->sys_pitch;
-	}
-	RegionUninit(&pExaPixmap->validSys);
-	RegionUninit(&pExaPixmap->validFB);
-    }
-
-    swap(pExaScr, pScreen, DestroyPixmap);
-    ret = pScreen->DestroyPixmap (pPixmap);
-    swap(pExaScr, pScreen, DestroyPixmap);
-
-    return ret;
-}
-
-Bool
-exaPixmapHasGpuCopy_classic(PixmapPtr pPixmap)
-{
-    ScreenPtr pScreen = pPixmap->drawable.pScreen;
-    ExaScreenPriv(pScreen);
-    ExaPixmapPriv(pPixmap);
-    Bool ret;
-
-    if (pExaScr->info->PixmapIsOffscreen) {
-	void* old_ptr = pPixmap->devPrivate.ptr;
-	pPixmap->devPrivate.ptr = ExaGetPixmapAddress(pPixmap);
-	ret = pExaScr->info->PixmapIsOffscreen(pPixmap);
-	pPixmap->devPrivate.ptr = old_ptr;
-    } else
-	ret = (pExaPixmap->use_gpu_copy && pExaPixmap->fb_ptr);
-
-    return ret;
-}
+/*

+ * Copyright © 2009 Maarten Maathuis

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice (including the next

+ * paragraph) shall be included in all copies or substantial portions of the

+ * Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

+ * SOFTWARE.

+ *

+ */

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <string.h>

+

+#include "exa_priv.h"

+#include "exa.h"

+

+/* This file holds the classic exa specific implementation. */

+

+static _X_INLINE void*

+ExaGetPixmapAddress(PixmapPtr p)

+{

+    ExaPixmapPriv(p);

+

+    if (pExaPixmap->use_gpu_copy && pExaPixmap->fb_ptr)

+	return pExaPixmap->fb_ptr;

+    else

+	return pExaPixmap->sys_ptr;

+}

+

+/**

+ * exaCreatePixmap() creates a new pixmap.

+ *

+ * If width and height are 0, this won't be a full-fledged pixmap and it will

+ * get ModifyPixmapHeader() called on it later.  So, we mark it as pinned, because

+ * ModifyPixmapHeader() would break migration.  These types of pixmaps are used

+ * for scratch pixmaps, or to represent the visible screen.

+ */

+PixmapPtr

+exaCreatePixmap_classic(ScreenPtr pScreen, int w, int h, int depth,

+		unsigned usage_hint)

+{

+    PixmapPtr pPixmap;

+    ExaPixmapPrivPtr	pExaPixmap;

+    BoxRec box;

+    int bpp;

+    ExaScreenPriv(pScreen);

+

+    if (w > 32767 || h > 32767)

+	return NullPixmap;

+

+    swap(pExaScr, pScreen, CreatePixmap);

+    pPixmap = pScreen->CreatePixmap (pScreen, w, h, depth, usage_hint);

+    swap(pExaScr, pScreen, CreatePixmap);

+

+    if (!pPixmap)

+        return NULL;

+

+    pExaPixmap = ExaGetPixmapPriv(pPixmap);

+    pExaPixmap->driverPriv = NULL;

+

+    bpp = pPixmap->drawable.bitsPerPixel;

+

+    pExaPixmap->driverPriv = NULL;

+    /* Scratch pixmaps may have w/h equal to zero, and may not be

+     * migrated.

+     */

+    if (!w || !h)

+	pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED;

+    else

+	pExaPixmap->score = EXA_PIXMAP_SCORE_INIT;

+

+    pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr;

+    pExaPixmap->sys_pitch = pPixmap->devKind;

+

+    pPixmap->devPrivate.ptr = NULL;

+    pExaPixmap->use_gpu_copy = FALSE;

+

+    pExaPixmap->fb_ptr = NULL;

+    exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp);

+    pExaPixmap->fb_size = pExaPixmap->fb_pitch * h;

+

+    if (pExaPixmap->fb_pitch > 131071) {

+	swap(pExaScr, pScreen, DestroyPixmap);

+	pScreen->DestroyPixmap (pPixmap);

+	swap(pExaScr, pScreen, DestroyPixmap);

+	return NULL;

+    }

+

+    /* Set up damage tracking */

+    pExaPixmap->pDamage = DamageCreate (NULL, NULL,

+					DamageReportNone, TRUE,

+					pScreen, pPixmap);

+

+    if (pExaPixmap->pDamage == NULL) {

+	swap(pExaScr, pScreen, DestroyPixmap);

+	pScreen->DestroyPixmap (pPixmap);

+	swap(pExaScr, pScreen, DestroyPixmap);

+	return NULL;

+    }

+

+    DamageRegister (&pPixmap->drawable, pExaPixmap->pDamage);

+    /* This ensures that pending damage reflects the current operation. */

+    /* This is used by exa to optimize migration. */

+    DamageSetReportAfterOp (pExaPixmap->pDamage, TRUE);

+

+    pExaPixmap->area = NULL;

+

+    /* We set the initial pixmap as completely valid for a simple reason.

+     * Imagine a 1000x1000 pixmap, it has 1 million pixels, 250000 of which

+     * could form single pixel rects as part of a region. Setting the complete region

+     * as valid is a natural defragmentation of the region.

+     */

+    box.x1 = 0;

+    box.y1 = 0;

+    box.x2 = w;

+    box.y2 = h;

+    RegionInit(&pExaPixmap->validSys, &box, 0);

+    RegionInit(&pExaPixmap->validFB, &box, 0);

+

+    exaSetAccelBlock(pExaScr, pExaPixmap,

+                     w, h, bpp);

+

+    /* During a fallback we must prepare access. */

+    if (pExaScr->fallback_counter)

+	exaPrepareAccess(&pPixmap->drawable, EXA_PREPARE_AUX_DEST);

+

+    return pPixmap;

+}

+

+Bool

+exaModifyPixmapHeader_classic(PixmapPtr pPixmap, int width, int height, int depth,

+		      int bitsPerPixel, int devKind, pointer pPixData)

+{

+    ScreenPtr pScreen;

+    ExaScreenPrivPtr pExaScr;

+    ExaPixmapPrivPtr pExaPixmap;

+    Bool ret;

+

+    if (!pPixmap)

+        return FALSE;

+

+    pScreen = pPixmap->drawable.pScreen;

+    pExaScr = ExaGetScreenPriv(pScreen);

+    pExaPixmap = ExaGetPixmapPriv(pPixmap);

+

+    if (pExaPixmap) {

+        if (pPixData)

+            pExaPixmap->sys_ptr = pPixData;

+

+        if (devKind > 0)

+            pExaPixmap->sys_pitch = devKind;

+

+	/* Classic EXA:

+	 * - Framebuffer.

+	 * - Scratch pixmap with gpu memory.

+	 */

+	if (pExaScr->info->memoryBase && pPixData) {

+	    if ((CARD8 *)pPixData >= pExaScr->info->memoryBase &&

+		((CARD8 *)pPixData - pExaScr->info->memoryBase) <

+				pExaScr->info->memorySize) {

+		pExaPixmap->fb_ptr = pPixData;

+		pExaPixmap->fb_pitch = devKind;

+		pExaPixmap->use_gpu_copy = TRUE;

+	    }

+	}

+

+        if (width > 0 && height > 0 && bitsPerPixel > 0) {

+            exaSetFbPitch(pExaScr, pExaPixmap,

+                          width, height, bitsPerPixel);

+

+            exaSetAccelBlock(pExaScr, pExaPixmap,

+                             width, height, bitsPerPixel);

+        }

+

+	/* Pixmaps subject to ModifyPixmapHeader will be pinned to system or

+	 * gpu memory, so there's no need to track damage.

+	 */

+	if (pExaPixmap->pDamage) {

+	    DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage);

+	    DamageDestroy(pExaPixmap->pDamage);

+	    pExaPixmap->pDamage = NULL;

+	}

+    }

+

+    swap(pExaScr, pScreen, ModifyPixmapHeader);

+    ret = pScreen->ModifyPixmapHeader(pPixmap, width, height, depth,

+					    bitsPerPixel, devKind, pPixData);

+    swap(pExaScr, pScreen, ModifyPixmapHeader);

+

+    /* Always NULL this, we don't want lingering pointers. */

+    pPixmap->devPrivate.ptr = NULL;

+

+    return ret;

+}

+

+Bool

+exaDestroyPixmap_classic (PixmapPtr pPixmap)

+{

+    ScreenPtr	pScreen = pPixmap->drawable.pScreen;

+    ExaScreenPriv(pScreen);

+    Bool ret;

+

+    if (pPixmap->refcnt == 1)

+    {

+	ExaPixmapPriv (pPixmap);

+

+	exaDestroyPixmap(pPixmap);

+

+	if (pExaPixmap->area)

+	{

+	    DBG_PIXMAP(("-- 0x%p (0x%x) (%dx%d)\n",

+                        (void*)pPixmap->drawable.id,

+			 ExaGetPixmapPriv(pPixmap)->area->offset,

+			 pPixmap->drawable.width,

+			 pPixmap->drawable.height));

+	    /* Free the offscreen area */

+	    exaOffscreenFree (pPixmap->drawable.pScreen, pExaPixmap->area);

+	    pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;

+	    pPixmap->devKind = pExaPixmap->sys_pitch;

+	}

+	RegionUninit(&pExaPixmap->validSys);

+	RegionUninit(&pExaPixmap->validFB);

+    }

+

+    swap(pExaScr, pScreen, DestroyPixmap);

+    ret = pScreen->DestroyPixmap (pPixmap);

+    swap(pExaScr, pScreen, DestroyPixmap);

+

+    return ret;

+}

+

+Bool

+exaPixmapHasGpuCopy_classic(PixmapPtr pPixmap)

+{

+    ScreenPtr pScreen = pPixmap->drawable.pScreen;

+    ExaScreenPriv(pScreen);

+    ExaPixmapPriv(pPixmap);

+    Bool ret;

+

+    if (pExaScr->info->PixmapIsOffscreen) {

+	void* old_ptr = pPixmap->devPrivate.ptr;

+	pPixmap->devPrivate.ptr = ExaGetPixmapAddress(pPixmap);

+	ret = pExaScr->info->PixmapIsOffscreen(pPixmap);

+	pPixmap->devPrivate.ptr = old_ptr;

+    } else

+	ret = (pExaPixmap->use_gpu_copy && pExaPixmap->fb_ptr);

+

+    return ret;

+}

diff --git a/xorg-server/exa/exa_driver.c b/xorg-server/exa/exa_driver.c
index 4d2a1a5df..bfc89295f 100644
--- a/xorg-server/exa/exa_driver.c
+++ b/xorg-server/exa/exa_driver.c
@@ -1,226 +1,226 @@
-/*
- * Copyright © 2009 Maarten Maathuis
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <string.h>
-
-#include "exa_priv.h"
-#include "exa.h"
-
-/* This file holds the driver allocated pixmaps specific implementation. */
-
-static _X_INLINE void*
-ExaGetPixmapAddress(PixmapPtr p)
-{
-    ExaPixmapPriv(p);
-
-    return pExaPixmap->sys_ptr;
-}
-
-/**
- * exaCreatePixmap() creates a new pixmap.
- *
- * Pixmaps are always marked as pinned, because exa has no control over them.
- */
-PixmapPtr
-exaCreatePixmap_driver(ScreenPtr pScreen, int w, int h, int depth,
-		unsigned class)
-{
-    PixmapPtr pPixmap;
-    ExaPixmapPrivPtr	pExaPixmap;
-    int bpp;
-    size_t paddedWidth, datasize;
-    ExaScreenPriv(pScreen);
-
-    if (w > 32767 || h > 32767)
-	return NullPixmap;
-
-    swap(pExaScr, pScreen, CreatePixmap);
-    pPixmap = pScreen->CreatePixmap(pScreen, 0, 0, depth, class);
-    swap(pExaScr, pScreen, CreatePixmap);
-
-    if (!pPixmap)
-        return NULL;
-
-    pExaPixmap = ExaGetPixmapPriv(pPixmap);
-    pExaPixmap->driverPriv = NULL;
-
-    bpp = pPixmap->drawable.bitsPerPixel;
-
-    /* Set this before driver hooks, to allow for driver pixmaps without gpu
-     * memory to back it. These pixmaps have a valid pointer at all times.
-     */
-    pPixmap->devPrivate.ptr = NULL;
-
-    if (pExaScr->info->CreatePixmap2) {
-	int new_pitch = 0;
-	pExaPixmap->driverPriv = pExaScr->info->CreatePixmap2(pScreen, w, h, depth, class, bpp, &new_pitch);
-	paddedWidth = pExaPixmap->fb_pitch = new_pitch;
-    }
-    else {
-	paddedWidth = ((w * bpp + FB_MASK) >> FB_SHIFT) * sizeof(FbBits);
-	if (paddedWidth / 4 > 32767 || h > 32767)
-	    return NullPixmap;
-
-	exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp);
-
-	if (paddedWidth < pExaPixmap->fb_pitch)
-	    paddedWidth = pExaPixmap->fb_pitch;
-	datasize = h * paddedWidth;
-	pExaPixmap->driverPriv = pExaScr->info->CreatePixmap(pScreen, datasize, 0);
-    }
-
-    if (!pExaPixmap->driverPriv) {
-	swap(pExaScr, pScreen, DestroyPixmap);
-	pScreen->DestroyPixmap (pPixmap);
-	swap(pExaScr, pScreen, DestroyPixmap);
-	return NULL;
-    }
-
-    /* Allow ModifyPixmapHeader to set sys_ptr appropriately. */
-    pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED;
-    pExaPixmap->fb_ptr = NULL;
-    pExaPixmap->pDamage = NULL;
-    pExaPixmap->sys_ptr = NULL;
-
-    (*pScreen->ModifyPixmapHeader)(pPixmap, w, h, 0, 0,
-				    paddedWidth, NULL);
-
-    pExaPixmap->area = NULL;
-
-    exaSetAccelBlock(pExaScr, pExaPixmap,
-                     w, h, bpp);
-
-    pExaPixmap->use_gpu_copy = exaPixmapHasGpuCopy(pPixmap);
-
-    /* During a fallback we must prepare access. */
-    if (pExaScr->fallback_counter)
-	exaPrepareAccess(&pPixmap->drawable, EXA_PREPARE_AUX_DEST);
-
-    return pPixmap;
-}
-
-Bool
-exaModifyPixmapHeader_driver(PixmapPtr pPixmap, int width, int height, int depth,
-		      int bitsPerPixel, int devKind, pointer pPixData)
-{
-    ScreenPtr pScreen;
-    ExaScreenPrivPtr pExaScr;
-    ExaPixmapPrivPtr pExaPixmap;
-    Bool ret;
-
-    if (!pPixmap)
-        return FALSE;
-
-    pScreen = pPixmap->drawable.pScreen;
-    pExaScr = ExaGetScreenPriv(pScreen);
-    pExaPixmap = ExaGetPixmapPriv(pPixmap);
-
-    if (pExaPixmap) {
-        if (pPixData)
-            pExaPixmap->sys_ptr = pPixData;
-
-        if (devKind > 0)
-            pExaPixmap->sys_pitch = devKind;
-
-        if (width > 0 && height > 0 && bitsPerPixel > 0) {
-            exaSetFbPitch(pExaScr, pExaPixmap,
-                          width, height, bitsPerPixel);
-
-            exaSetAccelBlock(pExaScr, pExaPixmap,
-                             width, height, bitsPerPixel);
-        }
-    }
-
-    if (pExaScr->info->ModifyPixmapHeader) {
-	ret = pExaScr->info->ModifyPixmapHeader(pPixmap, width, height, depth,
-						bitsPerPixel, devKind, pPixData);
-	/* For EXA_HANDLES_PIXMAPS, we set pPixData to NULL.
-	 * If pPixmap->devPrivate.ptr is non-NULL, then we've got a
-	 * !has_gpu_copy pixmap. We need to store the pointer,
-	 * because PrepareAccess won't be called.
-	 */
-	if (!pPixData && pPixmap->devPrivate.ptr && pPixmap->devKind) {
-	    pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr;
-	    pExaPixmap->sys_pitch = pPixmap->devKind;
-	}
-	if (ret == TRUE)
-	    goto out;
-    }
-
-    swap(pExaScr, pScreen, ModifyPixmapHeader);
-    ret = pScreen->ModifyPixmapHeader(pPixmap, width, height, depth,
-					    bitsPerPixel, devKind, pPixData);
-    swap(pExaScr, pScreen, ModifyPixmapHeader);
-
-out:
-    /* Always NULL this, we don't want lingering pointers. */
-    pPixmap->devPrivate.ptr = NULL;
-
-    return ret;
-}
-
-Bool
-exaDestroyPixmap_driver (PixmapPtr pPixmap)
-{
-    ScreenPtr	pScreen = pPixmap->drawable.pScreen;
-    ExaScreenPriv(pScreen);
-    Bool ret;
-
-    if (pPixmap->refcnt == 1)
-    {
-	ExaPixmapPriv (pPixmap);
-
-	exaDestroyPixmap(pPixmap);
-
-	if (pExaPixmap->driverPriv)
-	    pExaScr->info->DestroyPixmap(pScreen, pExaPixmap->driverPriv);
-	pExaPixmap->driverPriv = NULL;
-    }
-
-    swap(pExaScr, pScreen, DestroyPixmap);
-    ret = pScreen->DestroyPixmap (pPixmap);
-    swap(pExaScr, pScreen, DestroyPixmap);
-
-    return ret;
-}
-
-Bool
-exaPixmapHasGpuCopy_driver(PixmapPtr pPixmap)
-{
-    ScreenPtr pScreen = pPixmap->drawable.pScreen;
-    ExaScreenPriv(pScreen);
-    pointer saved_ptr;
-    Bool ret;
-
-    saved_ptr = pPixmap->devPrivate.ptr;
-    pPixmap->devPrivate.ptr = ExaGetPixmapAddress(pPixmap);
-    ret = pExaScr->info->PixmapIsOffscreen(pPixmap);
-    pPixmap->devPrivate.ptr = saved_ptr;
-
-    return ret;
-}
+/*

+ * Copyright © 2009 Maarten Maathuis

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice (including the next

+ * paragraph) shall be included in all copies or substantial portions of the

+ * Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

+ * SOFTWARE.

+ *

+ */

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <string.h>

+

+#include "exa_priv.h"

+#include "exa.h"

+

+/* This file holds the driver allocated pixmaps specific implementation. */

+

+static _X_INLINE void*

+ExaGetPixmapAddress(PixmapPtr p)

+{

+    ExaPixmapPriv(p);

+

+    return pExaPixmap->sys_ptr;

+}

+

+/**

+ * exaCreatePixmap() creates a new pixmap.

+ *

+ * Pixmaps are always marked as pinned, because exa has no control over them.

+ */

+PixmapPtr

+exaCreatePixmap_driver(ScreenPtr pScreen, int w, int h, int depth,

+		unsigned usage_hint)

+{

+    PixmapPtr pPixmap;

+    ExaPixmapPrivPtr	pExaPixmap;

+    int bpp;

+    size_t paddedWidth, datasize;

+    ExaScreenPriv(pScreen);

+

+    if (w > 32767 || h > 32767)

+	return NullPixmap;

+

+    swap(pExaScr, pScreen, CreatePixmap);

+    pPixmap = pScreen->CreatePixmap(pScreen, 0, 0, depth, usage_hint);

+    swap(pExaScr, pScreen, CreatePixmap);

+

+    if (!pPixmap)

+        return NULL;

+

+    pExaPixmap = ExaGetPixmapPriv(pPixmap);

+    pExaPixmap->driverPriv = NULL;

+

+    bpp = pPixmap->drawable.bitsPerPixel;

+

+    /* Set this before driver hooks, to allow for driver pixmaps without gpu

+     * memory to back it. These pixmaps have a valid pointer at all times.

+     */

+    pPixmap->devPrivate.ptr = NULL;

+

+    if (pExaScr->info->CreatePixmap2) {

+	int new_pitch = 0;

+	pExaPixmap->driverPriv = pExaScr->info->CreatePixmap2(pScreen, w, h, depth, usage_hint, bpp, &new_pitch);

+	paddedWidth = pExaPixmap->fb_pitch = new_pitch;

+    }

+    else {

+	paddedWidth = ((w * bpp + FB_MASK) >> FB_SHIFT) * sizeof(FbBits);

+	if (paddedWidth / 4 > 32767 || h > 32767)

+	    return NullPixmap;

+

+	exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp);

+

+	if (paddedWidth < pExaPixmap->fb_pitch)

+	    paddedWidth = pExaPixmap->fb_pitch;

+	datasize = h * paddedWidth;

+	pExaPixmap->driverPriv = pExaScr->info->CreatePixmap(pScreen, datasize, 0);

+    }

+

+    if (!pExaPixmap->driverPriv) {

+	swap(pExaScr, pScreen, DestroyPixmap);

+	pScreen->DestroyPixmap (pPixmap);

+	swap(pExaScr, pScreen, DestroyPixmap);

+	return NULL;

+    }

+

+    /* Allow ModifyPixmapHeader to set sys_ptr appropriately. */

+    pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED;

+    pExaPixmap->fb_ptr = NULL;

+    pExaPixmap->pDamage = NULL;

+    pExaPixmap->sys_ptr = NULL;

+

+    (*pScreen->ModifyPixmapHeader)(pPixmap, w, h, 0, 0,

+				    paddedWidth, NULL);

+

+    pExaPixmap->area = NULL;

+

+    exaSetAccelBlock(pExaScr, pExaPixmap,

+                     w, h, bpp);

+

+    pExaPixmap->use_gpu_copy = exaPixmapHasGpuCopy(pPixmap);

+

+    /* During a fallback we must prepare access. */

+    if (pExaScr->fallback_counter)

+	exaPrepareAccess(&pPixmap->drawable, EXA_PREPARE_AUX_DEST);

+

+    return pPixmap;

+}

+

+Bool

+exaModifyPixmapHeader_driver(PixmapPtr pPixmap, int width, int height, int depth,

+		      int bitsPerPixel, int devKind, pointer pPixData)

+{

+    ScreenPtr pScreen;

+    ExaScreenPrivPtr pExaScr;

+    ExaPixmapPrivPtr pExaPixmap;

+    Bool ret;

+

+    if (!pPixmap)

+        return FALSE;

+

+    pScreen = pPixmap->drawable.pScreen;

+    pExaScr = ExaGetScreenPriv(pScreen);

+    pExaPixmap = ExaGetPixmapPriv(pPixmap);

+

+    if (pExaPixmap) {

+        if (pPixData)

+            pExaPixmap->sys_ptr = pPixData;

+

+        if (devKind > 0)

+            pExaPixmap->sys_pitch = devKind;

+

+        if (width > 0 && height > 0 && bitsPerPixel > 0) {

+            exaSetFbPitch(pExaScr, pExaPixmap,

+                          width, height, bitsPerPixel);

+

+            exaSetAccelBlock(pExaScr, pExaPixmap,

+                             width, height, bitsPerPixel);

+        }

+    }

+

+    if (pExaScr->info->ModifyPixmapHeader) {

+	ret = pExaScr->info->ModifyPixmapHeader(pPixmap, width, height, depth,

+						bitsPerPixel, devKind, pPixData);

+	/* For EXA_HANDLES_PIXMAPS, we set pPixData to NULL.

+	 * If pPixmap->devPrivate.ptr is non-NULL, then we've got a

+	 * !has_gpu_copy pixmap. We need to store the pointer,

+	 * because PrepareAccess won't be called.

+	 */

+	if (!pPixData && pPixmap->devPrivate.ptr && pPixmap->devKind) {

+	    pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr;

+	    pExaPixmap->sys_pitch = pPixmap->devKind;

+	}

+	if (ret == TRUE)

+	    goto out;

+    }

+

+    swap(pExaScr, pScreen, ModifyPixmapHeader);

+    ret = pScreen->ModifyPixmapHeader(pPixmap, width, height, depth,

+					    bitsPerPixel, devKind, pPixData);

+    swap(pExaScr, pScreen, ModifyPixmapHeader);

+

+out:

+    /* Always NULL this, we don't want lingering pointers. */

+    pPixmap->devPrivate.ptr = NULL;

+

+    return ret;

+}

+

+Bool

+exaDestroyPixmap_driver (PixmapPtr pPixmap)

+{

+    ScreenPtr	pScreen = pPixmap->drawable.pScreen;

+    ExaScreenPriv(pScreen);

+    Bool ret;

+

+    if (pPixmap->refcnt == 1)

+    {

+	ExaPixmapPriv (pPixmap);

+

+	exaDestroyPixmap(pPixmap);

+

+	if (pExaPixmap->driverPriv)

+	    pExaScr->info->DestroyPixmap(pScreen, pExaPixmap->driverPriv);

+	pExaPixmap->driverPriv = NULL;

+    }

+

+    swap(pExaScr, pScreen, DestroyPixmap);

+    ret = pScreen->DestroyPixmap (pPixmap);

+    swap(pExaScr, pScreen, DestroyPixmap);

+

+    return ret;

+}

+

+Bool

+exaPixmapHasGpuCopy_driver(PixmapPtr pPixmap)

+{

+    ScreenPtr pScreen = pPixmap->drawable.pScreen;

+    ExaScreenPriv(pScreen);

+    pointer saved_ptr;

+    Bool ret;

+

+    saved_ptr = pPixmap->devPrivate.ptr;

+    pPixmap->devPrivate.ptr = ExaGetPixmapAddress(pPixmap);

+    ret = pExaScr->info->PixmapIsOffscreen(pPixmap);

+    pPixmap->devPrivate.ptr = saved_ptr;

+

+    return ret;

+}

diff --git a/xorg-server/exa/exa_migration_mixed.c b/xorg-server/exa/exa_migration_mixed.c
index a563357be..9489b2927 100644
--- a/xorg-server/exa/exa_migration_mixed.c
+++ b/xorg-server/exa/exa_migration_mixed.c
@@ -1,261 +1,261 @@
-/*
- * Copyright © 2009 Maarten Maathuis
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <string.h>
-
-#include "exa_priv.h"
-#include "exa.h"
-
-void
-exaCreateDriverPixmap_mixed(PixmapPtr pPixmap)
-{
-    ScreenPtr pScreen = pPixmap->drawable.pScreen;
-    ExaScreenPriv(pScreen);
-    ExaPixmapPriv(pPixmap);
-    int w = pPixmap->drawable.width, h = pPixmap->drawable.height;
-    int depth = pPixmap->drawable.depth, bpp = pPixmap->drawable.bitsPerPixel;
-    int class = pPixmap->drawable.class;
-    int paddedWidth = pExaPixmap->sys_pitch;
-
-    /* Already done. */
-    if (pExaPixmap->driverPriv)
-	return;
-
-    if (exaPixmapIsPinned(pPixmap))
-	return;
-
-    /* Can't accel 1/4 bpp. */
-    if (pExaPixmap->accel_blocked || bpp < 8)
-	return;
-
-    if (pExaScr->info->CreatePixmap2) {
-	int new_pitch = 0;
-        pExaPixmap->driverPriv = pExaScr->info->CreatePixmap2(pScreen, w, h, depth, class, bpp, &new_pitch);
-	paddedWidth = pExaPixmap->fb_pitch = new_pitch;
-    } else {
-	if (paddedWidth < pExaPixmap->fb_pitch)
-	    paddedWidth = pExaPixmap->fb_pitch;
-	pExaPixmap->driverPriv = pExaScr->info->CreatePixmap(pScreen, paddedWidth*h, 0);
-    }
-
-    if (!pExaPixmap->driverPriv)
-	return;
-
-    (*pScreen->ModifyPixmapHeader)(pPixmap, w, h, 0, 0,
-				paddedWidth, NULL);
-}
-
-void
-exaDoMigration_mixed(ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel)
-{
-    int i;
-
-    /* If anything is pinned in system memory, we won't be able to
-     * accelerate.
-     */
-    for (i = 0; i < npixmaps; i++) {
-	if (exaPixmapIsPinned (pixmaps[i].pPix) &&
-	    !exaPixmapHasGpuCopy (pixmaps[i].pPix))
-	{
-	    can_accel = FALSE;
-	    break;
-	}
-    }
-
-    /* We can do nothing. */
-    if (!can_accel)
-	return;
-
-    for (i = 0; i < npixmaps; i++) {
-	PixmapPtr pPixmap = pixmaps[i].pPix;
-	ExaPixmapPriv(pPixmap);
-
-	if (!pExaPixmap->driverPriv)
-	    exaCreateDriverPixmap_mixed(pPixmap);
-
-	if (pExaPixmap->pDamage && exaPixmapHasGpuCopy(pPixmap)) {
-	    ExaScreenPriv(pPixmap->drawable.pScreen);
-
-	    /* This pitch is needed for proper acceleration. For some reason
-	     * there are pixmaps without pDamage and a bad fb_pitch value.
-	     * So setting devKind when only exaPixmapHasGpuCopy() is true
-	     * causes corruption. Pixmaps without pDamage are not migrated
-	     * and should have a valid devKind at all times, so that's why this
-	     * isn't causing problems. Pixmaps have their gpu pitch set the
-	     * first time in the MPH call from exaCreateDriverPixmap_mixed().
-	     */
-	    pPixmap->devKind = pExaPixmap->fb_pitch;
-	    exaCopyDirtyToFb(pixmaps + i);
-
-	    if (pExaScr->deferred_mixed_pixmap == pPixmap &&
-		!pixmaps[i].as_dst && !pixmaps[i].pReg)
-		pExaScr->deferred_mixed_pixmap = NULL;
-	}
-
-	pExaPixmap->use_gpu_copy = exaPixmapHasGpuCopy(pPixmap);
-    }
-}
-
-void
-exaMoveInPixmap_mixed(PixmapPtr pPixmap)
-{
-    ExaMigrationRec pixmaps[1];
-
-    pixmaps[0].as_dst = FALSE;
-    pixmaps[0].as_src = TRUE;
-    pixmaps[0].pPix = pPixmap;
-    pixmaps[0].pReg = NULL;
-
-    exaDoMigration(pixmaps, 1, TRUE);
-}
-
-void
-exaDamageReport_mixed(DamagePtr pDamage, RegionPtr pRegion, void *closure)
-{
-    PixmapPtr pPixmap = closure;
-    ExaPixmapPriv(pPixmap);
-
-    /* Move back results of software rendering on system memory copy of mixed driver
-     * pixmap (see exaPrepareAccessReg_mixed).
-     *
-     * Defer moving the destination back into the driver pixmap, to try and save
-     * overhead on multiple subsequent software fallbacks.
-     */
-    if (!pExaPixmap->use_gpu_copy && exaPixmapHasGpuCopy(pPixmap)) {
-	ExaScreenPriv(pPixmap->drawable.pScreen);
-
-	if (pExaScr->deferred_mixed_pixmap &&
-	    pExaScr->deferred_mixed_pixmap != pPixmap)
-	    exaMoveInPixmap_mixed(pExaScr->deferred_mixed_pixmap);
-	pExaScr->deferred_mixed_pixmap = pPixmap;
-    }
-}
-
-/* With mixed pixmaps, if we fail to get direct access to the driver pixmap, we
- * use the DownloadFromScreen hook to retrieve contents to a copy in system
- * memory, perform software rendering on that and move back the results with the
- * UploadToScreen hook (see exaDamageReport_mixed).
- */
-void
-exaPrepareAccessReg_mixed(PixmapPtr pPixmap, int index, RegionPtr pReg)
-{
-    ExaPixmapPriv(pPixmap);
-    Bool has_gpu_copy = exaPixmapHasGpuCopy(pPixmap);
-    Bool success;
-
-    success = ExaDoPrepareAccess(pPixmap, index);
-
-    if (success && has_gpu_copy && pExaPixmap->pDamage) {
-	/* You cannot do accelerated operations while a buffer is mapped. */
-	exaFinishAccess(&pPixmap->drawable, index);
-	/* Update the gpu view of both deferred destination pixmaps and of
-	 * source pixmaps that were migrated with a bounding region.
-	 */
-	exaMoveInPixmap_mixed(pPixmap);
-	success = ExaDoPrepareAccess(pPixmap, index);
-
-	if (success) {
-	    /* We have a gpu pixmap that can be accessed, we don't need the cpu
-	     * copy anymore. Drivers that prefer DFS, should fail prepare
-	     * access.
-	     */
-	    DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage);
-	    DamageDestroy(pExaPixmap->pDamage);
-	    pExaPixmap->pDamage = NULL;
-
-	    free(pExaPixmap->sys_ptr);
-	    pExaPixmap->sys_ptr = NULL;
-
-	    return;
-	}
-    }
-
-    if (!success) {
-	ExaMigrationRec pixmaps[1];
-
-	/* Do we need to allocate our system buffer? */
-	if (!pExaPixmap->sys_ptr) {
-	    pExaPixmap->sys_ptr = malloc(pExaPixmap->sys_pitch *
-					 pPixmap->drawable.height);
-	    if (!pExaPixmap->sys_ptr)
-		FatalError("EXA: malloc failed for size %d bytes\n",
-			   pExaPixmap->sys_pitch * pPixmap->drawable.height);
-	}
-
-	if (index == EXA_PREPARE_DEST || index == EXA_PREPARE_AUX_DEST) {
-	    pixmaps[0].as_dst = TRUE;
-	    pixmaps[0].as_src = FALSE;
-	} else {
-	    pixmaps[0].as_dst = FALSE;
-	    pixmaps[0].as_src = TRUE;
-	}
-	pixmaps[0].pPix = pPixmap;
-	pixmaps[0].pReg = pReg;
-
-	if (!pExaPixmap->pDamage &&
-		(has_gpu_copy || !exaPixmapIsPinned(pPixmap))) {
-	    Bool as_dst = pixmaps[0].as_dst;
-
-	    /* Set up damage tracking */
-	    pExaPixmap->pDamage = DamageCreate(exaDamageReport_mixed, NULL,
-					       DamageReportNonEmpty, TRUE,
-					       pPixmap->drawable.pScreen,
-					       pPixmap);
-
-	    DamageRegister(&pPixmap->drawable, pExaPixmap->pDamage);
-	    /* This ensures that pending damage reflects the current operation. */
-	    /* This is used by exa to optimize migration. */
-	    DamageSetReportAfterOp(pExaPixmap->pDamage, TRUE);
-
-	    if (has_gpu_copy) {
-		exaPixmapDirty(pPixmap, 0, 0, pPixmap->drawable.width,
-			       pPixmap->drawable.height);
-
-		/* We don't know which region of the destination will be damaged,
-		 * have to assume all of it
-		 */
-		if (as_dst) {
-		    pixmaps[0].as_dst = FALSE;
-		    pixmaps[0].as_src = TRUE;
-		    pixmaps[0].pReg = NULL;
-		}
-		exaCopyDirtyToSys(pixmaps);
-	    }
-
-	    if (as_dst)
-		exaPixmapDirty(pPixmap, 0, 0, pPixmap->drawable.width,
-			       pPixmap->drawable.height);
-	} else if (has_gpu_copy)
-	    exaCopyDirtyToSys(pixmaps);
-
-	pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;
-	pPixmap->devKind = pExaPixmap->sys_pitch;
-	pExaPixmap->use_gpu_copy = FALSE;
-    }
-}
-
+/*

+ * Copyright © 2009 Maarten Maathuis

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice (including the next

+ * paragraph) shall be included in all copies or substantial portions of the

+ * Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

+ * SOFTWARE.

+ *

+ */

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <string.h>

+

+#include "exa_priv.h"

+#include "exa.h"

+

+void

+exaCreateDriverPixmap_mixed(PixmapPtr pPixmap)

+{

+    ScreenPtr pScreen = pPixmap->drawable.pScreen;

+    ExaScreenPriv(pScreen);

+    ExaPixmapPriv(pPixmap);

+    int w = pPixmap->drawable.width, h = pPixmap->drawable.height;

+    int depth = pPixmap->drawable.depth, bpp = pPixmap->drawable.bitsPerPixel;

+    int usage_hint = pPixmap->usage_hint;

+    int paddedWidth = pExaPixmap->sys_pitch;

+

+    /* Already done. */

+    if (pExaPixmap->driverPriv)

+	return;

+

+    if (exaPixmapIsPinned(pPixmap))

+	return;

+

+    /* Can't accel 1/4 bpp. */

+    if (pExaPixmap->accel_blocked || bpp < 8)

+	return;

+

+    if (pExaScr->info->CreatePixmap2) {

+	int new_pitch = 0;

+        pExaPixmap->driverPriv = pExaScr->info->CreatePixmap2(pScreen, w, h, depth, usage_hint, bpp, &new_pitch);

+	paddedWidth = pExaPixmap->fb_pitch = new_pitch;

+    } else {

+	if (paddedWidth < pExaPixmap->fb_pitch)

+	    paddedWidth = pExaPixmap->fb_pitch;

+	pExaPixmap->driverPriv = pExaScr->info->CreatePixmap(pScreen, paddedWidth*h, 0);

+    }

+

+    if (!pExaPixmap->driverPriv)

+	return;

+

+    (*pScreen->ModifyPixmapHeader)(pPixmap, w, h, 0, 0,

+				paddedWidth, NULL);

+}

+

+void

+exaDoMigration_mixed(ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel)

+{

+    int i;

+

+    /* If anything is pinned in system memory, we won't be able to

+     * accelerate.

+     */

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

+	if (exaPixmapIsPinned (pixmaps[i].pPix) &&

+	    !exaPixmapHasGpuCopy (pixmaps[i].pPix))

+	{

+	    can_accel = FALSE;

+	    break;

+	}

+    }

+

+    /* We can do nothing. */

+    if (!can_accel)

+	return;

+

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

+	PixmapPtr pPixmap = pixmaps[i].pPix;

+	ExaPixmapPriv(pPixmap);

+

+	if (!pExaPixmap->driverPriv)

+	    exaCreateDriverPixmap_mixed(pPixmap);

+

+	if (pExaPixmap->pDamage && exaPixmapHasGpuCopy(pPixmap)) {

+	    ExaScreenPriv(pPixmap->drawable.pScreen);

+

+	    /* This pitch is needed for proper acceleration. For some reason

+	     * there are pixmaps without pDamage and a bad fb_pitch value.

+	     * So setting devKind when only exaPixmapHasGpuCopy() is true

+	     * causes corruption. Pixmaps without pDamage are not migrated

+	     * and should have a valid devKind at all times, so that's why this

+	     * isn't causing problems. Pixmaps have their gpu pitch set the

+	     * first time in the MPH call from exaCreateDriverPixmap_mixed().

+	     */

+	    pPixmap->devKind = pExaPixmap->fb_pitch;

+	    exaCopyDirtyToFb(pixmaps + i);

+

+	    if (pExaScr->deferred_mixed_pixmap == pPixmap &&

+		!pixmaps[i].as_dst && !pixmaps[i].pReg)

+		pExaScr->deferred_mixed_pixmap = NULL;

+	}

+

+	pExaPixmap->use_gpu_copy = exaPixmapHasGpuCopy(pPixmap);

+    }

+}

+

+void

+exaMoveInPixmap_mixed(PixmapPtr pPixmap)

+{

+    ExaMigrationRec pixmaps[1];

+

+    pixmaps[0].as_dst = FALSE;

+    pixmaps[0].as_src = TRUE;

+    pixmaps[0].pPix = pPixmap;

+    pixmaps[0].pReg = NULL;

+

+    exaDoMigration(pixmaps, 1, TRUE);

+}

+

+void

+exaDamageReport_mixed(DamagePtr pDamage, RegionPtr pRegion, void *closure)

+{

+    PixmapPtr pPixmap = closure;

+    ExaPixmapPriv(pPixmap);

+

+    /* Move back results of software rendering on system memory copy of mixed driver

+     * pixmap (see exaPrepareAccessReg_mixed).

+     *

+     * Defer moving the destination back into the driver pixmap, to try and save

+     * overhead on multiple subsequent software fallbacks.

+     */

+    if (!pExaPixmap->use_gpu_copy && exaPixmapHasGpuCopy(pPixmap)) {

+	ExaScreenPriv(pPixmap->drawable.pScreen);

+

+	if (pExaScr->deferred_mixed_pixmap &&

+	    pExaScr->deferred_mixed_pixmap != pPixmap)

+	    exaMoveInPixmap_mixed(pExaScr->deferred_mixed_pixmap);

+	pExaScr->deferred_mixed_pixmap = pPixmap;

+    }

+}

+

+/* With mixed pixmaps, if we fail to get direct access to the driver pixmap, we

+ * use the DownloadFromScreen hook to retrieve contents to a copy in system

+ * memory, perform software rendering on that and move back the results with the

+ * UploadToScreen hook (see exaDamageReport_mixed).

+ */

+void

+exaPrepareAccessReg_mixed(PixmapPtr pPixmap, int index, RegionPtr pReg)

+{

+    ExaPixmapPriv(pPixmap);

+    Bool has_gpu_copy = exaPixmapHasGpuCopy(pPixmap);

+    Bool success;

+

+    success = ExaDoPrepareAccess(pPixmap, index);

+

+    if (success && has_gpu_copy && pExaPixmap->pDamage) {

+	/* You cannot do accelerated operations while a buffer is mapped. */

+	exaFinishAccess(&pPixmap->drawable, index);

+	/* Update the gpu view of both deferred destination pixmaps and of

+	 * source pixmaps that were migrated with a bounding region.

+	 */

+	exaMoveInPixmap_mixed(pPixmap);

+	success = ExaDoPrepareAccess(pPixmap, index);

+

+	if (success) {

+	    /* We have a gpu pixmap that can be accessed, we don't need the cpu

+	     * copy anymore. Drivers that prefer DFS, should fail prepare

+	     * access.

+	     */

+	    DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage);

+	    DamageDestroy(pExaPixmap->pDamage);

+	    pExaPixmap->pDamage = NULL;

+

+	    free(pExaPixmap->sys_ptr);

+	    pExaPixmap->sys_ptr = NULL;

+

+	    return;

+	}

+    }

+

+    if (!success) {

+	ExaMigrationRec pixmaps[1];

+

+	/* Do we need to allocate our system buffer? */

+	if (!pExaPixmap->sys_ptr) {

+	    pExaPixmap->sys_ptr = malloc(pExaPixmap->sys_pitch *

+					 pPixmap->drawable.height);

+	    if (!pExaPixmap->sys_ptr)

+		FatalError("EXA: malloc failed for size %d bytes\n",

+			   pExaPixmap->sys_pitch * pPixmap->drawable.height);

+	}

+

+	if (index == EXA_PREPARE_DEST || index == EXA_PREPARE_AUX_DEST) {

+	    pixmaps[0].as_dst = TRUE;

+	    pixmaps[0].as_src = FALSE;

+	} else {

+	    pixmaps[0].as_dst = FALSE;

+	    pixmaps[0].as_src = TRUE;

+	}

+	pixmaps[0].pPix = pPixmap;

+	pixmaps[0].pReg = pReg;

+

+	if (!pExaPixmap->pDamage &&

+		(has_gpu_copy || !exaPixmapIsPinned(pPixmap))) {

+	    Bool as_dst = pixmaps[0].as_dst;

+

+	    /* Set up damage tracking */

+	    pExaPixmap->pDamage = DamageCreate(exaDamageReport_mixed, NULL,

+					       DamageReportNonEmpty, TRUE,

+					       pPixmap->drawable.pScreen,

+					       pPixmap);

+

+	    DamageRegister(&pPixmap->drawable, pExaPixmap->pDamage);

+	    /* This ensures that pending damage reflects the current operation. */

+	    /* This is used by exa to optimize migration. */

+	    DamageSetReportAfterOp(pExaPixmap->pDamage, TRUE);

+

+	    if (has_gpu_copy) {

+		exaPixmapDirty(pPixmap, 0, 0, pPixmap->drawable.width,

+			       pPixmap->drawable.height);

+

+		/* We don't know which region of the destination will be damaged,

+		 * have to assume all of it

+		 */

+		if (as_dst) {

+		    pixmaps[0].as_dst = FALSE;

+		    pixmaps[0].as_src = TRUE;

+		    pixmaps[0].pReg = NULL;

+		}

+		exaCopyDirtyToSys(pixmaps);

+	    }

+

+	    if (as_dst)

+		exaPixmapDirty(pPixmap, 0, 0, pPixmap->drawable.width,

+			       pPixmap->drawable.height);

+	} else if (has_gpu_copy)

+	    exaCopyDirtyToSys(pixmaps);

+

+	pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;

+	pPixmap->devKind = pExaPixmap->sys_pitch;

+	pExaPixmap->use_gpu_copy = FALSE;

+    }

+}

+

diff --git a/xorg-server/exa/exa_mixed.c b/xorg-server/exa/exa_mixed.c
index 24fce7645..188a7e0a6 100644
--- a/xorg-server/exa/exa_mixed.c
+++ b/xorg-server/exa/exa_mixed.c
@@ -1,290 +1,290 @@
-/*
- * Copyright © 2009 Maarten Maathuis
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <string.h>
-
-#include "exa_priv.h"
-#include "exa.h"
-
-/* This file holds the driver allocated pixmaps + better initial placement code.
- */
-
-static _X_INLINE void*
-ExaGetPixmapAddress(PixmapPtr p)
-{
-    ExaPixmapPriv(p);
-
-    return pExaPixmap->sys_ptr;
-}
-
-/**
- * exaCreatePixmap() creates a new pixmap.
- */
-PixmapPtr
-exaCreatePixmap_mixed(ScreenPtr pScreen, int w, int h, int depth,
-		unsigned class)
-{
-    PixmapPtr pPixmap;
-    ExaPixmapPrivPtr	pExaPixmap;
-    int bpp;
-    size_t paddedWidth;
-    ExaScreenPriv(pScreen);
-
-    if (w > 32767 || h > 32767)
-	return NullPixmap;
-
-    swap(pExaScr, pScreen, CreatePixmap);
-    pPixmap = pScreen->CreatePixmap(pScreen, 0, 0, depth, class);
-    swap(pExaScr, pScreen, CreatePixmap);
-
-    if (!pPixmap)
-        return NULL;
-
-    pExaPixmap = ExaGetPixmapPriv(pPixmap);
-    pExaPixmap->driverPriv = NULL;
-
-    bpp = pPixmap->drawable.bitsPerPixel;
-
-    paddedWidth = ((w * bpp + FB_MASK) >> FB_SHIFT) * sizeof(FbBits);
-    if (paddedWidth / 4 > 32767 || h > 32767)
-        return NullPixmap;
-
-    /* We will allocate the system pixmap later if needed. */
-    pPixmap->devPrivate.ptr = NULL;
-    pExaPixmap->sys_ptr = NULL;
-    pExaPixmap->sys_pitch = paddedWidth;
-
-    pExaPixmap->area = NULL;
-    pExaPixmap->fb_ptr = NULL;
-    pExaPixmap->pDamage = NULL;
-
-    exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp);
-    exaSetAccelBlock(pExaScr, pExaPixmap,
-	w, h, bpp);
-
-    (*pScreen->ModifyPixmapHeader)(pPixmap, w, h, 0, 0,
-				    paddedWidth, NULL);
-
-    /* A scratch pixmap will become a driver pixmap right away. */
-    if (!w || !h) {
-	exaCreateDriverPixmap_mixed(pPixmap);
-	pExaPixmap->use_gpu_copy = exaPixmapHasGpuCopy(pPixmap);
-    } else {
-	pExaPixmap->use_gpu_copy = FALSE;
-
-	if (w == 1 && h == 1) {
-	    pExaPixmap->sys_ptr = malloc(paddedWidth);
-
-	    /* Set up damage tracking */
-	    pExaPixmap->pDamage = DamageCreate(exaDamageReport_mixed, NULL,
-					       DamageReportNonEmpty, TRUE,
-					       pPixmap->drawable.pScreen,
-					       pPixmap);
-
-	    DamageRegister(&pPixmap->drawable, pExaPixmap->pDamage);
-	    /* This ensures that pending damage reflects the current operation. */
-	    /* This is used by exa to optimize migration. */
-	    DamageSetReportAfterOp(pExaPixmap->pDamage, TRUE);
-	}
-    }
-
-    /* During a fallback we must prepare access. */
-    if (pExaScr->fallback_counter)
-	exaPrepareAccess(&pPixmap->drawable, EXA_PREPARE_AUX_DEST);
-
-    return pPixmap;
-}
-
-Bool
-exaModifyPixmapHeader_mixed(PixmapPtr pPixmap, int width, int height, int depth,
-		      int bitsPerPixel, int devKind, pointer pPixData)
-{
-    ScreenPtr pScreen;
-    ExaScreenPrivPtr pExaScr;
-    ExaPixmapPrivPtr pExaPixmap;
-    Bool ret, has_gpu_copy;
-
-    if (!pPixmap)
-        return FALSE;
-
-    pScreen = pPixmap->drawable.pScreen;
-    pExaScr = ExaGetScreenPriv(pScreen);
-    pExaPixmap = ExaGetPixmapPriv(pPixmap);
-
-    if (pPixData) {
-	if (pExaPixmap->driverPriv) {
-	    if (pExaPixmap->pDamage) {
-		DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage);
-		DamageDestroy(pExaPixmap->pDamage);
-		pExaPixmap->pDamage = NULL;
-	    }
-
-	    pExaScr->info->DestroyPixmap(pScreen, pExaPixmap->driverPriv);
-	    pExaPixmap->driverPriv = NULL;
-	}
-
-	pExaPixmap->use_gpu_copy = FALSE;
-	pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED;
-    }
-
-    has_gpu_copy = exaPixmapHasGpuCopy(pPixmap);
-
-    if (width <= 0)
-	width = pPixmap->drawable.width;
-
-    if (height <= 0)
-	height = pPixmap->drawable.height;
-
-    if (bitsPerPixel <= 0) {
-	if (depth <= 0)
-	    bitsPerPixel = pPixmap->drawable.bitsPerPixel;
-	else
-	    bitsPerPixel = BitsPerPixel(depth);
-    }
-
-    if (depth <= 0)
-	depth = pPixmap->drawable.depth;
-
-    if (width != pPixmap->drawable.width ||
-	height != pPixmap->drawable.height ||
-	depth != pPixmap->drawable.depth ||
-	bitsPerPixel != pPixmap->drawable.bitsPerPixel) {
-	if (pExaPixmap->driverPriv) {
-	    if (devKind > 0)
-		pExaPixmap->fb_pitch = devKind;
-	    else
-		exaSetFbPitch(pExaScr, pExaPixmap, width, height, bitsPerPixel);
-
-            exaSetAccelBlock(pExaScr, pExaPixmap,
-                             width, height, bitsPerPixel);
-            RegionEmpty(&pExaPixmap->validFB);
-        }
-
-	/* Need to re-create system copy if there's also a GPU copy */
-	if (has_gpu_copy && pExaPixmap->sys_ptr) {
-	    free(pExaPixmap->sys_ptr);
-	    pExaPixmap->sys_ptr = NULL;
-	    pExaPixmap->sys_pitch = PixmapBytePad(width, depth);
-	    DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage);
-	    DamageDestroy(pExaPixmap->pDamage);
-	    pExaPixmap->pDamage = NULL;
-	    RegionEmpty(&pExaPixmap->validSys);
-
-	    if (pExaScr->deferred_mixed_pixmap == pPixmap)
-		pExaScr->deferred_mixed_pixmap = NULL;
-	}
-    }
-
-    if (has_gpu_copy) {
-	pPixmap->devPrivate.ptr = pExaPixmap->fb_ptr;
-	pPixmap->devKind = pExaPixmap->fb_pitch;
-    } else {
-	pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;
-	pPixmap->devKind = pExaPixmap->sys_pitch;
-    }
-
-    /* Only pass driver pixmaps to the driver. */
-    if (pExaScr->info->ModifyPixmapHeader && pExaPixmap->driverPriv) {
-	ret = pExaScr->info->ModifyPixmapHeader(pPixmap, width, height, depth,
-						bitsPerPixel, devKind, pPixData);
-	if (ret == TRUE)
-	    goto out;
-    }
-
-    swap(pExaScr, pScreen, ModifyPixmapHeader);
-    ret = pScreen->ModifyPixmapHeader(pPixmap, width, height, depth,
-					    bitsPerPixel, devKind, pPixData);
-    swap(pExaScr, pScreen, ModifyPixmapHeader);
-
-out:
-    if (has_gpu_copy) {
-	pExaPixmap->fb_ptr = pPixmap->devPrivate.ptr;
-	pExaPixmap->fb_pitch = pPixmap->devKind;
-    } else {
-	pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr;
-	pExaPixmap->sys_pitch = pPixmap->devKind;
-    }
-    /* Always NULL this, we don't want lingering pointers. */
-    pPixmap->devPrivate.ptr = NULL;
-
-    return ret;
-}
-
-Bool
-exaDestroyPixmap_mixed(PixmapPtr pPixmap)
-{
-    ScreenPtr	pScreen = pPixmap->drawable.pScreen;
-    ExaScreenPriv(pScreen);
-    Bool ret;
-
-    if (pPixmap->refcnt == 1)
-    {
-	ExaPixmapPriv (pPixmap);
-
-	exaDestroyPixmap(pPixmap);
-
-	if (pExaScr->deferred_mixed_pixmap == pPixmap)
-	    pExaScr->deferred_mixed_pixmap = NULL;
-
-	if (pExaPixmap->driverPriv)
-	    pExaScr->info->DestroyPixmap(pScreen, pExaPixmap->driverPriv);
-	pExaPixmap->driverPriv = NULL;
-
-	if (pExaPixmap->pDamage) {
-	    free(pExaPixmap->sys_ptr);
-	    pExaPixmap->sys_ptr = NULL;
-	    pExaPixmap->pDamage = NULL;
-	}
-    }
-
-    swap(pExaScr, pScreen, DestroyPixmap);
-    ret = pScreen->DestroyPixmap (pPixmap);
-    swap(pExaScr, pScreen, DestroyPixmap);
-
-    return ret;
-}
-
-Bool
-exaPixmapHasGpuCopy_mixed(PixmapPtr pPixmap)
-{
-    ScreenPtr pScreen = pPixmap->drawable.pScreen;
-    ExaScreenPriv(pScreen);
-    ExaPixmapPriv(pPixmap);
-    pointer saved_ptr;
-    Bool ret;
-
-    if (!pExaPixmap->driverPriv)
-	return FALSE;
-
-    saved_ptr = pPixmap->devPrivate.ptr;
-    pPixmap->devPrivate.ptr = ExaGetPixmapAddress(pPixmap);
-    ret = pExaScr->info->PixmapIsOffscreen(pPixmap);
-    pPixmap->devPrivate.ptr = saved_ptr;
-
-    return ret;
-}
+/*

+ * Copyright © 2009 Maarten Maathuis

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice (including the next

+ * paragraph) shall be included in all copies or substantial portions of the

+ * Software.

+ *

+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

+ * SOFTWARE.

+ *

+ */

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <string.h>

+

+#include "exa_priv.h"

+#include "exa.h"

+

+/* This file holds the driver allocated pixmaps + better initial placement code.

+ */

+

+static _X_INLINE void*

+ExaGetPixmapAddress(PixmapPtr p)

+{

+    ExaPixmapPriv(p);

+

+    return pExaPixmap->sys_ptr;

+}

+

+/**

+ * exaCreatePixmap() creates a new pixmap.

+ */

+PixmapPtr

+exaCreatePixmap_mixed(ScreenPtr pScreen, int w, int h, int depth,

+		unsigned usage_hint)

+{

+    PixmapPtr pPixmap;

+    ExaPixmapPrivPtr	pExaPixmap;

+    int bpp;

+    size_t paddedWidth;

+    ExaScreenPriv(pScreen);

+

+    if (w > 32767 || h > 32767)

+	return NullPixmap;

+

+    swap(pExaScr, pScreen, CreatePixmap);

+    pPixmap = pScreen->CreatePixmap(pScreen, 0, 0, depth, usage_hint);

+    swap(pExaScr, pScreen, CreatePixmap);

+

+    if (!pPixmap)

+        return NULL;

+

+    pExaPixmap = ExaGetPixmapPriv(pPixmap);

+    pExaPixmap->driverPriv = NULL;

+

+    bpp = pPixmap->drawable.bitsPerPixel;

+

+    paddedWidth = ((w * bpp + FB_MASK) >> FB_SHIFT) * sizeof(FbBits);

+    if (paddedWidth / 4 > 32767 || h > 32767)

+        return NullPixmap;

+

+    /* We will allocate the system pixmap later if needed. */

+    pPixmap->devPrivate.ptr = NULL;

+    pExaPixmap->sys_ptr = NULL;

+    pExaPixmap->sys_pitch = paddedWidth;

+

+    pExaPixmap->area = NULL;

+    pExaPixmap->fb_ptr = NULL;

+    pExaPixmap->pDamage = NULL;

+

+    exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp);

+    exaSetAccelBlock(pExaScr, pExaPixmap,

+	w, h, bpp);

+

+    (*pScreen->ModifyPixmapHeader)(pPixmap, w, h, 0, 0,

+				    paddedWidth, NULL);

+

+    /* A scratch pixmap will become a driver pixmap right away. */

+    if (!w || !h) {

+	exaCreateDriverPixmap_mixed(pPixmap);

+	pExaPixmap->use_gpu_copy = exaPixmapHasGpuCopy(pPixmap);

+    } else {

+	pExaPixmap->use_gpu_copy = FALSE;

+

+	if (w == 1 && h == 1) {

+	    pExaPixmap->sys_ptr = malloc(paddedWidth);

+

+	    /* Set up damage tracking */

+	    pExaPixmap->pDamage = DamageCreate(exaDamageReport_mixed, NULL,

+					       DamageReportNonEmpty, TRUE,

+					       pPixmap->drawable.pScreen,

+					       pPixmap);

+

+	    DamageRegister(&pPixmap->drawable, pExaPixmap->pDamage);

+	    /* This ensures that pending damage reflects the current operation. */

+	    /* This is used by exa to optimize migration. */

+	    DamageSetReportAfterOp(pExaPixmap->pDamage, TRUE);

+	}

+    }

+

+    /* During a fallback we must prepare access. */

+    if (pExaScr->fallback_counter)

+	exaPrepareAccess(&pPixmap->drawable, EXA_PREPARE_AUX_DEST);

+

+    return pPixmap;

+}

+

+Bool

+exaModifyPixmapHeader_mixed(PixmapPtr pPixmap, int width, int height, int depth,

+		      int bitsPerPixel, int devKind, pointer pPixData)

+{

+    ScreenPtr pScreen;

+    ExaScreenPrivPtr pExaScr;

+    ExaPixmapPrivPtr pExaPixmap;

+    Bool ret, has_gpu_copy;

+

+    if (!pPixmap)

+        return FALSE;

+

+    pScreen = pPixmap->drawable.pScreen;

+    pExaScr = ExaGetScreenPriv(pScreen);

+    pExaPixmap = ExaGetPixmapPriv(pPixmap);

+

+    if (pPixData) {

+	if (pExaPixmap->driverPriv) {

+	    if (pExaPixmap->pDamage) {

+		DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage);

+		DamageDestroy(pExaPixmap->pDamage);

+		pExaPixmap->pDamage = NULL;

+	    }

+

+	    pExaScr->info->DestroyPixmap(pScreen, pExaPixmap->driverPriv);

+	    pExaPixmap->driverPriv = NULL;

+	}

+

+	pExaPixmap->use_gpu_copy = FALSE;

+	pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED;

+    }

+

+    has_gpu_copy = exaPixmapHasGpuCopy(pPixmap);

+

+    if (width <= 0)

+	width = pPixmap->drawable.width;

+

+    if (height <= 0)

+	height = pPixmap->drawable.height;

+

+    if (bitsPerPixel <= 0) {

+	if (depth <= 0)

+	    bitsPerPixel = pPixmap->drawable.bitsPerPixel;

+	else

+	    bitsPerPixel = BitsPerPixel(depth);

+    }

+

+    if (depth <= 0)

+	depth = pPixmap->drawable.depth;

+

+    if (width != pPixmap->drawable.width ||

+	height != pPixmap->drawable.height ||

+	depth != pPixmap->drawable.depth ||

+	bitsPerPixel != pPixmap->drawable.bitsPerPixel) {

+	if (pExaPixmap->driverPriv) {

+	    if (devKind > 0)

+		pExaPixmap->fb_pitch = devKind;

+	    else

+		exaSetFbPitch(pExaScr, pExaPixmap, width, height, bitsPerPixel);

+

+            exaSetAccelBlock(pExaScr, pExaPixmap,

+                             width, height, bitsPerPixel);

+            RegionEmpty(&pExaPixmap->validFB);

+        }

+

+	/* Need to re-create system copy if there's also a GPU copy */

+	if (has_gpu_copy && pExaPixmap->sys_ptr) {

+	    free(pExaPixmap->sys_ptr);

+	    pExaPixmap->sys_ptr = NULL;

+	    pExaPixmap->sys_pitch = PixmapBytePad(width, depth);

+	    DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage);

+	    DamageDestroy(pExaPixmap->pDamage);

+	    pExaPixmap->pDamage = NULL;

+	    RegionEmpty(&pExaPixmap->validSys);

+

+	    if (pExaScr->deferred_mixed_pixmap == pPixmap)

+		pExaScr->deferred_mixed_pixmap = NULL;

+	}

+    }

+

+    if (has_gpu_copy) {

+	pPixmap->devPrivate.ptr = pExaPixmap->fb_ptr;

+	pPixmap->devKind = pExaPixmap->fb_pitch;

+    } else {

+	pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;

+	pPixmap->devKind = pExaPixmap->sys_pitch;

+    }

+

+    /* Only pass driver pixmaps to the driver. */

+    if (pExaScr->info->ModifyPixmapHeader && pExaPixmap->driverPriv) {

+	ret = pExaScr->info->ModifyPixmapHeader(pPixmap, width, height, depth,

+						bitsPerPixel, devKind, pPixData);

+	if (ret == TRUE)

+	    goto out;

+    }

+

+    swap(pExaScr, pScreen, ModifyPixmapHeader);

+    ret = pScreen->ModifyPixmapHeader(pPixmap, width, height, depth,

+					    bitsPerPixel, devKind, pPixData);

+    swap(pExaScr, pScreen, ModifyPixmapHeader);

+

+out:

+    if (has_gpu_copy) {

+	pExaPixmap->fb_ptr = pPixmap->devPrivate.ptr;

+	pExaPixmap->fb_pitch = pPixmap->devKind;

+    } else {

+	pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr;

+	pExaPixmap->sys_pitch = pPixmap->devKind;

+    }

+    /* Always NULL this, we don't want lingering pointers. */

+    pPixmap->devPrivate.ptr = NULL;

+

+    return ret;

+}

+

+Bool

+exaDestroyPixmap_mixed(PixmapPtr pPixmap)

+{

+    ScreenPtr	pScreen = pPixmap->drawable.pScreen;

+    ExaScreenPriv(pScreen);

+    Bool ret;

+

+    if (pPixmap->refcnt == 1)

+    {

+	ExaPixmapPriv (pPixmap);

+

+	exaDestroyPixmap(pPixmap);

+

+	if (pExaScr->deferred_mixed_pixmap == pPixmap)

+	    pExaScr->deferred_mixed_pixmap = NULL;

+

+	if (pExaPixmap->driverPriv)

+	    pExaScr->info->DestroyPixmap(pScreen, pExaPixmap->driverPriv);

+	pExaPixmap->driverPriv = NULL;

+

+	if (pExaPixmap->pDamage) {

+	    free(pExaPixmap->sys_ptr);

+	    pExaPixmap->sys_ptr = NULL;

+	    pExaPixmap->pDamage = NULL;

+	}

+    }

+

+    swap(pExaScr, pScreen, DestroyPixmap);

+    ret = pScreen->DestroyPixmap (pPixmap);

+    swap(pExaScr, pScreen, DestroyPixmap);

+

+    return ret;

+}

+

+Bool

+exaPixmapHasGpuCopy_mixed(PixmapPtr pPixmap)

+{

+    ScreenPtr pScreen = pPixmap->drawable.pScreen;

+    ExaScreenPriv(pScreen);

+    ExaPixmapPriv(pPixmap);

+    pointer saved_ptr;

+    Bool ret;

+

+    if (!pExaPixmap->driverPriv)

+	return FALSE;

+

+    saved_ptr = pPixmap->devPrivate.ptr;

+    pPixmap->devPrivate.ptr = ExaGetPixmapAddress(pPixmap);

+    ret = pExaScr->info->PixmapIsOffscreen(pPixmap);

+    pPixmap->devPrivate.ptr = saved_ptr;

+

+    return ret;

+}

diff --git a/xorg-server/exa/exa_priv.h b/xorg-server/exa/exa_priv.h
index 1f6dede94..1b8cf294a 100644
--- a/xorg-server/exa/exa_priv.h
+++ b/xorg-server/exa/exa_priv.h
@@ -1,725 +1,725 @@
-/*
- *
- * Copyright (C) 2000 Keith Packard, member of The XFree86 Project, Inc.
- *               2005 Zack Rusin, Trolltech
- *
- * 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 Keith Packard not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission.  Keith Packard makes 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 EXAPRIV_H
-#define EXAPRIV_H
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include "exa.h"
-
-#include <X11/X.h>
-#include <X11/Xproto.h>
-#ifdef MITSHM
-#include "shmint.h"
-#endif
-#include "scrnintstr.h"
-#include "pixmapstr.h"
-#include "windowstr.h"
-#include "servermd.h"
-#include "mibstore.h"
-#include "colormapst.h"
-#include "gcstruct.h"
-#include "input.h"
-#include "mipointer.h"
-#include "mi.h"
-#include "dix.h"
-#include "fb.h"
-#include "fboverlay.h"
-#include "fbpict.h"
-#include "glyphstr.h"
-#include "damage.h"
-
-#define DEBUG_TRACE_FALL	0
-#define DEBUG_MIGRATE		0
-#define DEBUG_PIXMAP		0
-#define DEBUG_OFFSCREEN		0
-#define DEBUG_GLYPH_CACHE	0
-
-#if DEBUG_TRACE_FALL
-#define EXA_FALLBACK(x)     					\
-do {								\
-	ErrorF("EXA fallback at %s: ", __FUNCTION__);		\
-	ErrorF x;						\
-} while (0)
-
-char
-exaDrawableLocation(DrawablePtr pDrawable);
-#else
-#define EXA_FALLBACK(x)
-#endif
-
-#if DEBUG_PIXMAP
-#define DBG_PIXMAP(a) ErrorF a
-#else
-#define DBG_PIXMAP(a)
-#endif
-
-#ifndef EXA_MAX_FB
-#define EXA_MAX_FB   FB_OVERLAY_MAX
-#endif
-
-#ifdef DEBUG
-#define EXA_FatalErrorDebug(x) FatalError x
-#define EXA_FatalErrorDebugWithRet(x, ret) FatalError x
-#else
-#define EXA_FatalErrorDebug(x) ErrorF x
-#define EXA_FatalErrorDebugWithRet(x, ret) \
-do { \
-    ErrorF x; \
-    return ret; \
-} while (0)
-#endif
-
-/**
- * This is the list of migration heuristics supported by EXA.  See
- * exaDoMigration() for what their implementations do.
- */
-enum ExaMigrationHeuristic {
-    ExaMigrationGreedy,
-    ExaMigrationAlways,
-    ExaMigrationSmart
-};
-
-typedef struct {
-    unsigned char sha1[20];
-} ExaCachedGlyphRec, *ExaCachedGlyphPtr;
-
-typedef struct {
-    /* The identity of the cache, statically configured at initialization */
-    unsigned int format;
-    int glyphWidth;
-    int glyphHeight;
-
-    int size; /* Size of cache; eventually this should be dynamically determined */
-
-    /* Hash table mapping from glyph sha1 to position in the glyph; we use
-     * open addressing with a hash table size determined based on size and large
-     * enough so that we always have a good amount of free space, so we can
-     * use linear probing. (Linear probing is preferrable to double hashing
-     * here because it allows us to easily remove entries.)
-     */
-    int *hashEntries;
-    int hashSize;
-    
-    ExaCachedGlyphPtr glyphs;
-    int glyphCount; /* Current number of glyphs */
-    
-    PicturePtr picture;   /* Where the glyphs of the cache are stored */
-    int yOffset;          /* y location within the picture where the cache starts */
-    int columns;          /* Number of columns the glyphs are layed out in */
-    int evictionPosition; /* Next random position to evict a glyph */
-} ExaGlyphCacheRec, *ExaGlyphCachePtr;
-
-#define EXA_NUM_GLYPH_CACHES 4
-
-#define EXA_FALLBACK_COPYWINDOW (1 << 0)
-#define EXA_ACCEL_COPYWINDOW (1 << 1)
-
-typedef struct _ExaMigrationRec {
-    Bool as_dst;
-    Bool as_src;
-    PixmapPtr pPix;
-    RegionPtr pReg;
-} ExaMigrationRec, *ExaMigrationPtr;
-
-typedef void (*EnableDisableFBAccessProcPtr)(int, Bool);
-typedef struct {
-    ExaDriverPtr info;
-    ScreenBlockHandlerProcPtr	 SavedBlockHandler;
-    ScreenWakeupHandlerProcPtr	 SavedWakeupHandler;
-    CreateGCProcPtr 		 SavedCreateGC;
-    CloseScreenProcPtr 		 SavedCloseScreen;
-    GetImageProcPtr 		 SavedGetImage;
-    GetSpansProcPtr 		 SavedGetSpans;
-    CreatePixmapProcPtr 	 SavedCreatePixmap;
-    DestroyPixmapProcPtr 	 SavedDestroyPixmap;
-    CopyWindowProcPtr 		 SavedCopyWindow;
-    ChangeWindowAttributesProcPtr SavedChangeWindowAttributes;
-    BitmapToRegionProcPtr        SavedBitmapToRegion;
-    CreateScreenResourcesProcPtr SavedCreateScreenResources;
-    ModifyPixmapHeaderProcPtr    SavedModifyPixmapHeader;
-    SourceValidateProcPtr        SavedSourceValidate;
-    CompositeProcPtr             SavedComposite;
-    TrianglesProcPtr		 SavedTriangles;
-    GlyphsProcPtr                SavedGlyphs;
-    TrapezoidsProcPtr            SavedTrapezoids;
-    AddTrapsProcPtr		 SavedAddTraps;
-    void (*do_migration) (ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel);
-    Bool (*pixmap_has_gpu_copy) (PixmapPtr pPixmap);
-    void (*do_move_in_pixmap) (PixmapPtr pPixmap);
-    void (*do_move_out_pixmap) (PixmapPtr pPixmap);
-    void (*prepare_access_reg)(PixmapPtr pPixmap, int index, RegionPtr pReg);
-
-    Bool			 swappedOut;
-    enum ExaMigrationHeuristic	 migration;
-    Bool			 checkDirtyCorrectness;
-    unsigned			 disableFbCount;
-    Bool			 optimize_migration;
-    unsigned			 offScreenCounter;
-    unsigned			 numOffscreenAvailable;
-    CARD32			 lastDefragment;
-    CARD32			 nextDefragment;
-    PixmapPtr			 deferred_mixed_pixmap;
-
-    /* Reference counting for accessed pixmaps */
-    struct {
-	PixmapPtr pixmap;
-	int count;
-	Bool retval;
-    } access[EXA_NUM_PREPARE_INDICES];
-
-    /* Holds information on fallbacks that cannot be relayed otherwise. */
-    unsigned int fallback_flags;
-    unsigned int fallback_counter;
-
-    ExaGlyphCacheRec             glyphCaches[EXA_NUM_GLYPH_CACHES];
-
-    /**
-     * Regions affected by fallback composite source / mask operations.
-     */
-
-    RegionRec srcReg;
-    RegionRec maskReg;
-    PixmapPtr srcPix;
-
-} ExaScreenPrivRec, *ExaScreenPrivPtr;
-
-/*
- * This is the only completely portable way to
- * compute this info.
- */
-#ifndef BitsPerPixel
-#define BitsPerPixel(d) (\
-    PixmapWidthPaddingInfo[d].notPower2 ? \
-    (PixmapWidthPaddingInfo[d].bytesPerPixel * 8) : \
-    ((1 << PixmapWidthPaddingInfo[d].padBytesLog2) * 8 / \
-    (PixmapWidthPaddingInfo[d].padRoundUp+1)))
-#endif
-
-extern DevPrivateKeyRec exaScreenPrivateKeyRec;
-#define exaScreenPrivateKey (&exaScreenPrivateKeyRec)
-extern DevPrivateKeyRec exaPixmapPrivateKeyRec;
-#define exaPixmapPrivateKey (&exaPixmapPrivateKeyRec)
-extern DevPrivateKeyRec exaGCPrivateKeyRec;
-#define exaGCPrivateKey (&exaGCPrivateKeyRec)
-
-#define ExaGetScreenPriv(s) ((ExaScreenPrivPtr)dixLookupPrivate(&(s)->devPrivates, exaScreenPrivateKey))
-#define ExaScreenPriv(s)	ExaScreenPrivPtr    pExaScr = ExaGetScreenPriv(s)
-
-#define ExaGetGCPriv(gc) ((ExaGCPrivPtr)dixLookupPrivate(&(gc)->devPrivates, exaGCPrivateKey))
-#define ExaGCPriv(gc) ExaGCPrivPtr pExaGC = ExaGetGCPriv(gc)
-
-/*
- * Some macros to deal with function wrapping.
- */
-#define wrap(priv, real, mem, func) {\
-    priv->Saved##mem = real->mem; \
-    real->mem = func; \
-}
-
-#define unwrap(priv, real, mem) {\
-    real->mem = priv->Saved##mem; \
-}
-
-#define swap(priv, real, mem) {\
-    void *tmp = priv->Saved##mem; \
-    priv->Saved##mem = real->mem; \
-    real->mem = tmp; \
-}
-
-#define EXA_PRE_FALLBACK(_screen_) \
-    ExaScreenPriv(_screen_); \
-    pExaScr->fallback_counter++;
-
-#define EXA_POST_FALLBACK(_screen_) \
-    pExaScr->fallback_counter--;
-
-#define EXA_PRE_FALLBACK_GC(_gc_) \
-    ExaScreenPriv(_gc_->pScreen); \
-    ExaGCPriv(_gc_); \
-    pExaScr->fallback_counter++; \
-    swap(pExaGC, _gc_, ops);
-
-#define EXA_POST_FALLBACK_GC(_gc_) \
-    pExaScr->fallback_counter--; \
-    swap(pExaGC, _gc_, ops);
-
-/** Align an offset to an arbitrary alignment */
-#define EXA_ALIGN(offset, align) (((offset) + (align) - 1) - \
-	(((offset) + (align) - 1) % (align)))
-/** Align an offset to a power-of-two alignment */
-#define EXA_ALIGN2(offset, align) (((offset) + (align) - 1) & ~((align) - 1))
-
-#define EXA_PIXMAP_SCORE_MOVE_IN    10
-#define EXA_PIXMAP_SCORE_MAX	    20
-#define EXA_PIXMAP_SCORE_MOVE_OUT   -10
-#define EXA_PIXMAP_SCORE_MIN	    -20
-#define EXA_PIXMAP_SCORE_PINNED	    1000
-#define EXA_PIXMAP_SCORE_INIT	    1001
-
-#define ExaGetPixmapPriv(p) ((ExaPixmapPrivPtr)dixLookupPrivate(&(p)->devPrivates, exaPixmapPrivateKey))
-#define ExaSetPixmapPriv(p,a) dixSetPrivate(&(p)->devPrivates, exaPixmapPrivateKey, a)
-#define ExaPixmapPriv(p)	ExaPixmapPrivPtr pExaPixmap = ExaGetPixmapPriv(p)
-
-#define EXA_RANGE_PITCH (1 << 0)
-#define EXA_RANGE_WIDTH (1 << 1)
-#define EXA_RANGE_HEIGHT (1 << 2)
-
-typedef struct {
-    ExaOffscreenArea *area;
-    int		    score;	/**< score for the move-in vs move-out heuristic */
-    Bool	    use_gpu_copy;
-
-    CARD8	    *sys_ptr;	/**< pointer to pixmap data in system memory */
-    int		    sys_pitch;	/**< pitch of pixmap in system memory */
-
-    CARD8	    *fb_ptr;	/**< pointer to pixmap data in framebuffer memory */
-    int		    fb_pitch;	/**< pitch of pixmap in framebuffer memory */
-    unsigned int    fb_size;	/**< size of pixmap in framebuffer memory */
-
-    /**
-     * Holds information about whether this pixmap can be used for
-     * acceleration (== 0) or not (> 0).
-     *
-     * Contains a OR'ed combination of the following values:
-     * EXA_RANGE_PITCH - set if the pixmap's pitch is out of range
-     * EXA_RANGE_WIDTH - set if the pixmap's width is out of range
-     * EXA_RANGE_HEIGHT - set if the pixmap's height is out of range
-     */
-    unsigned int    accel_blocked;
-
-    /**
-     * The damage record contains the areas of the pixmap's current location
-     * (framebuffer or system) that have been damaged compared to the other
-     * location.
-     */
-    DamagePtr	    pDamage;
-    /**
-     * The valid regions mark the valid bits (at least, as they're derived from
-     * damage, which may be overreported) of a pixmap's system and FB copies.
-     */
-    RegionRec	    validSys, validFB;
-    /**
-     * Driver private storage per EXA pixmap
-     */
-    void *driverPriv;
-} ExaPixmapPrivRec, *ExaPixmapPrivPtr;
-
-typedef struct {
-    /* GC values from the layer below. */
-    GCOps *Savedops;
-    GCFuncs *Savedfuncs;
-} ExaGCPrivRec, *ExaGCPrivPtr;
-
-typedef struct {
-    PicturePtr pDst;
-    INT16 xSrc;
-    INT16 ySrc;
-    INT16 xMask;
-    INT16 yMask;
-    INT16 xDst;
-    INT16 yDst;
-    INT16 width;
-    INT16 height;
-} ExaCompositeRectRec, *ExaCompositeRectPtr;
-
-/**
- * exaDDXDriverInit must be implemented by the DDX using EXA, and is the place
- * to set EXA options or hook in screen functions to handle using EXA as the AA.
-  */
-void exaDDXDriverInit (ScreenPtr pScreen);
-
-/* exa_unaccel.c */
-void
-exaPrepareAccessGC(GCPtr pGC);
-
-void
-exaFinishAccessGC(GCPtr pGC);
-
-void
-ExaCheckFillSpans  (DrawablePtr pDrawable, GCPtr pGC, int nspans,
-		   DDXPointPtr ppt, int *pwidth, int fSorted);
-
-void
-ExaCheckSetSpans (DrawablePtr pDrawable, GCPtr pGC, char *psrc,
-		 DDXPointPtr ppt, int *pwidth, int nspans, int fSorted);
-
-void
-ExaCheckPutImage (DrawablePtr pDrawable, GCPtr pGC, int depth,
-		 int x, int y, int w, int h, int leftPad, int format,
-		 char *bits);
-
-void
-ExaCheckCopyNtoN (DrawablePtr pSrc, DrawablePtr pDst,  GCPtr pGC,
-	     BoxPtr	pbox, int nbox, int dx, int dy, Bool	reverse, 
-	     Bool upsidedown, Pixel bitplane, void *closure);
-
-RegionPtr
-ExaCheckCopyArea (DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
-		 int srcx, int srcy, int w, int h, int dstx, int dsty);
-
-RegionPtr
-ExaCheckCopyPlane (DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
-		  int srcx, int srcy, int w, int h, int dstx, int dsty,
-		  unsigned long bitPlane);
-
-void
-ExaCheckPolyPoint (DrawablePtr pDrawable, GCPtr pGC, int mode, int npt,
-		  DDXPointPtr pptInit);
-
-void
-ExaCheckPolylines (DrawablePtr pDrawable, GCPtr pGC,
-		  int mode, int npt, DDXPointPtr ppt);
-
-void
-ExaCheckPolySegment (DrawablePtr pDrawable, GCPtr pGC,
-		    int nsegInit, xSegment *pSegInit);
-
-void
-ExaCheckPolyArc (DrawablePtr pDrawable, GCPtr pGC,
-		int narcs, xArc *pArcs);
-
-void
-ExaCheckPolyFillRect (DrawablePtr pDrawable, GCPtr pGC,
-		     int nrect, xRectangle *prect);
-
-void
-ExaCheckImageGlyphBlt (DrawablePtr pDrawable, GCPtr pGC,
-		      int x, int y, unsigned int nglyph,
-		      CharInfoPtr *ppci, pointer pglyphBase);
-
-void
-ExaCheckPolyGlyphBlt (DrawablePtr pDrawable, GCPtr pGC,
-		     int x, int y, unsigned int nglyph,
-		     CharInfoPtr *ppci, pointer pglyphBase);
-
-void
-ExaCheckPushPixels (GCPtr pGC, PixmapPtr pBitmap,
-		   DrawablePtr pDrawable,
-		   int w, int h, int x, int y);
-
-void
-ExaCheckCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc);
-
-void
-ExaCheckGetImage(DrawablePtr pDrawable, int x, int y, int w, int h,
-		unsigned int format, unsigned long planeMask, char *d);
-
-void
-ExaCheckGetSpans (DrawablePtr pDrawable,
-		 int wMax,
-		 DDXPointPtr ppt,
-		 int *pwidth,
-		 int nspans,
-		 char *pdstStart);
-
-void
-ExaCheckAddTraps (PicturePtr	pPicture,
-		  INT16		x_off,
-		  INT16		y_off,
-		  int		ntrap,
-		  xTrap		*traps);
-
-/* exa_accel.c */
-
-static _X_INLINE Bool
-exaGCReadsDestination(DrawablePtr pDrawable, unsigned long planemask,
-		      unsigned int fillStyle, unsigned char alu,
-		      unsigned int clientClipType)
-{
-    return ((alu != GXcopy && alu != GXclear && alu != GXset &&
-	     alu != GXcopyInverted) || fillStyle == FillStippled ||
-	    clientClipType != CT_NONE || !EXA_PM_IS_SOLID(pDrawable, planemask));
-}
-
-void
-exaCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc);
-
-Bool
-exaFillRegionTiled (DrawablePtr	pDrawable, RegionPtr pRegion, PixmapPtr pTile,
-		    DDXPointPtr pPatOrg, CARD32 planemask, CARD32 alu,
-		    unsigned int clientClipType);
-
-void
-exaGetImage (DrawablePtr pDrawable, int x, int y, int w, int h,
-	     unsigned int format, unsigned long planeMask, char *d);
-
-RegionPtr
-exaCopyArea(DrawablePtr pSrcDrawable, DrawablePtr pDstDrawable, GCPtr pGC,
-	    int srcx, int srcy, int width, int height, int dstx, int dsty);
-
-Bool
-exaHWCopyNtoN (DrawablePtr    pSrcDrawable,
-	     DrawablePtr    pDstDrawable,
-	     GCPtr	    pGC,
-	     BoxPtr	    pbox,
-	     int	    nbox,
-	     int	    dx,
-	     int	    dy,
-	     Bool	    reverse,
-	     Bool	    upsidedown);
-
-void
-exaCopyNtoN (DrawablePtr    pSrcDrawable,
-	     DrawablePtr    pDstDrawable,
-	     GCPtr	    pGC,
-	     BoxPtr	    pbox,
-	     int	    nbox,
-	     int	    dx,
-	     int	    dy,
-	     Bool	    reverse,
-	     Bool	    upsidedown,
-	     Pixel	    bitplane,
-	     void	    *closure);
-
-extern const GCOps exaOps;
-
-void
-ExaCheckComposite (CARD8      op,
-		  PicturePtr pSrc,
-		  PicturePtr pMask,
-		  PicturePtr pDst,
-		  INT16      xSrc,
-		  INT16      ySrc,
-		  INT16      xMask,
-		  INT16      yMask,
-		  INT16      xDst,
-		  INT16      yDst,
-		  CARD16     width,
-		  CARD16     height);
-
-void
-ExaCheckGlyphs (CARD8	      op,
-		PicturePtr    pSrc,
-		PicturePtr    pDst,
-		PictFormatPtr maskFormat,
-		INT16	      xSrc,
-		INT16	      ySrc,
-		int	      nlist,
-		GlyphListPtr  list,
-		GlyphPtr      *glyphs);
-
-/* exa_offscreen.c */
-void
-ExaOffscreenSwapOut (ScreenPtr pScreen);
-
-void
-ExaOffscreenSwapIn (ScreenPtr pScreen);
-
-ExaOffscreenArea*
-ExaOffscreenDefragment (ScreenPtr pScreen);
-
-Bool
-exaOffscreenInit(ScreenPtr pScreen);
-
-void
-ExaOffscreenFini (ScreenPtr pScreen);
-
-/* exa.c */
-Bool
-ExaDoPrepareAccess(PixmapPtr pPixmap, int index);
-
-void
-exaPrepareAccess(DrawablePtr pDrawable, int index);
-
-void
-exaFinishAccess(DrawablePtr pDrawable, int index);
-
-void
-exaDestroyPixmap(PixmapPtr pPixmap);
-
-void
-exaPixmapDirty(PixmapPtr pPix, int x1, int y1, int x2, int y2);
-
-void
-exaGetDrawableDeltas (DrawablePtr pDrawable, PixmapPtr pPixmap,
-		      int *xp, int *yp);
-
-Bool
-exaPixmapHasGpuCopy(PixmapPtr p);
-
-PixmapPtr
-exaGetOffscreenPixmap (DrawablePtr pDrawable, int *xp, int *yp);
-
-PixmapPtr
-exaGetDrawablePixmap(DrawablePtr pDrawable);
-
-void
-exaSetFbPitch(ExaScreenPrivPtr pExaScr, ExaPixmapPrivPtr pExaPixmap,
-              int w, int h, int bpp);
-
-void
-exaSetAccelBlock(ExaScreenPrivPtr pExaScr, ExaPixmapPrivPtr pExaPixmap,
-                 int w, int h, int bpp);
-
-void
-exaDoMigration (ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel);
-
-Bool
-exaPixmapIsPinned (PixmapPtr pPix);
-
-extern const GCFuncs exaGCFuncs;
-
-/* exa_classic.c */
-PixmapPtr
-exaCreatePixmap_classic(ScreenPtr pScreen, int w, int h, int depth,
-		unsigned class);
-
-Bool
-exaModifyPixmapHeader_classic(PixmapPtr pPixmap, int width, int height, int depth,
-		      int bitsPerPixel, int devKind, pointer pPixData);
-
-Bool
-exaDestroyPixmap_classic (PixmapPtr pPixmap);
-
-Bool
-exaPixmapHasGpuCopy_classic(PixmapPtr pPixmap);
-
-/* exa_driver.c */
-PixmapPtr
-exaCreatePixmap_driver(ScreenPtr pScreen, int w, int h, int depth,
-		unsigned class);
-
-Bool
-exaModifyPixmapHeader_driver(PixmapPtr pPixmap, int width, int height, int depth,
-		      int bitsPerPixel, int devKind, pointer pPixData);
-
-Bool
-exaDestroyPixmap_driver (PixmapPtr pPixmap);
-
-Bool
-exaPixmapHasGpuCopy_driver(PixmapPtr pPixmap);
-
-/* exa_mixed.c */
-PixmapPtr
-exaCreatePixmap_mixed(ScreenPtr pScreen, int w, int h, int depth,
-		unsigned class);
-
-Bool
-exaModifyPixmapHeader_mixed(PixmapPtr pPixmap, int width, int height, int depth,
-		      int bitsPerPixel, int devKind, pointer pPixData);
-
-Bool
-exaDestroyPixmap_mixed(PixmapPtr pPixmap);
-
-Bool
-exaPixmapHasGpuCopy_mixed(PixmapPtr pPixmap);
-
-/* exa_migration_mixed.c */
-void
-exaCreateDriverPixmap_mixed(PixmapPtr pPixmap);
-
-void
-exaDoMigration_mixed(ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel);
-
-void
-exaMoveInPixmap_mixed(PixmapPtr pPixmap);
-
-void
-exaDamageReport_mixed(DamagePtr pDamage, RegionPtr pRegion, void *closure);
-
-void
-exaPrepareAccessReg_mixed(PixmapPtr pPixmap, int index, RegionPtr pReg);
-
-/* exa_render.c */
-Bool
-exaOpReadsDestination (CARD8 op);
-
-void
-exaComposite(CARD8	op,
-	     PicturePtr pSrc,
-	     PicturePtr pMask,
-	     PicturePtr pDst,
-	     INT16	xSrc,
-	     INT16	ySrc,
-	     INT16	xMask,
-	     INT16	yMask,
-	     INT16	xDst,
-	     INT16	yDst,
-	     CARD16	width,
-	     CARD16	height);
-
-void
-exaCompositeRects(CARD8	              op,
-		  PicturePtr	      Src,
-		  PicturePtr	      pMask,
-		  PicturePtr	      pDst,
-		  int                 nrect,
-		  ExaCompositeRectPtr rects);
-
-void
-exaTrapezoids (CARD8 op, PicturePtr pSrc, PicturePtr pDst,
-               PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc,
-               int ntrap, xTrapezoid *traps);
-
-void
-exaTriangles (CARD8 op, PicturePtr pSrc, PicturePtr pDst,
-	      PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc,
-	      int ntri, xTriangle *tris);
-
-/* exa_glyph.c */
-void
-exaGlyphsInit(ScreenPtr pScreen);
-
-void
-exaGlyphsFini (ScreenPtr pScreen);
-
-void
-exaGlyphs (CARD8	op,
-	  PicturePtr	pSrc,
-	  PicturePtr	pDst,
-	  PictFormatPtr	maskFormat,
-	  INT16		xSrc,
-	  INT16		ySrc,
-	  int		nlist,
-	  GlyphListPtr	list,
-	  GlyphPtr	*glyphs);
-
-/* exa_migration_classic.c */
-void
-exaCopyDirtyToSys (ExaMigrationPtr migrate);
-
-void
-exaCopyDirtyToFb (ExaMigrationPtr migrate);
-
-void
-exaDoMigration_classic (ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel);
-
-void
-exaPixmapSave (ScreenPtr pScreen, ExaOffscreenArea *area);
-
-void
-exaMoveOutPixmap_classic (PixmapPtr pPixmap);
-
-void
-exaMoveInPixmap_classic (PixmapPtr pPixmap);
-
-void
-exaPrepareAccessReg_classic(PixmapPtr pPixmap, int index, RegionPtr pReg);
-
-#endif /* EXAPRIV_H */
+/*

+ *

+ * Copyright (C) 2000 Keith Packard, member of The XFree86 Project, Inc.

+ *               2005 Zack Rusin, Trolltech

+ *

+ * 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 Keith Packard not be used in

+ * advertising or publicity pertaining to distribution of the software without

+ * specific, written prior permission.  Keith Packard makes 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 EXAPRIV_H

+#define EXAPRIV_H

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include "exa.h"

+

+#include <X11/X.h>

+#include <X11/Xproto.h>

+#ifdef MITSHM

+#include "shmint.h"

+#endif

+#include "scrnintstr.h"

+#include "pixmapstr.h"

+#include "windowstr.h"

+#include "servermd.h"

+#include "mibstore.h"

+#include "colormapst.h"

+#include "gcstruct.h"

+#include "input.h"

+#include "mipointer.h"

+#include "mi.h"

+#include "dix.h"

+#include "fb.h"

+#include "fboverlay.h"

+#include "fbpict.h"

+#include "glyphstr.h"

+#include "damage.h"

+

+#define DEBUG_TRACE_FALL	0

+#define DEBUG_MIGRATE		0

+#define DEBUG_PIXMAP		0

+#define DEBUG_OFFSCREEN		0

+#define DEBUG_GLYPH_CACHE	0

+

+#if DEBUG_TRACE_FALL

+#define EXA_FALLBACK(x)     					\

+do {								\

+	ErrorF("EXA fallback at %s: ", __FUNCTION__);		\

+	ErrorF x;						\

+} while (0)

+

+char

+exaDrawableLocation(DrawablePtr pDrawable);

+#else

+#define EXA_FALLBACK(x)

+#endif

+

+#if DEBUG_PIXMAP

+#define DBG_PIXMAP(a) ErrorF a

+#else

+#define DBG_PIXMAP(a)

+#endif

+

+#ifndef EXA_MAX_FB

+#define EXA_MAX_FB   FB_OVERLAY_MAX

+#endif

+

+#ifdef DEBUG

+#define EXA_FatalErrorDebug(x) FatalError x

+#define EXA_FatalErrorDebugWithRet(x, ret) FatalError x

+#else

+#define EXA_FatalErrorDebug(x) ErrorF x

+#define EXA_FatalErrorDebugWithRet(x, ret) \

+do { \

+    ErrorF x; \

+    return ret; \

+} while (0)

+#endif

+

+/**

+ * This is the list of migration heuristics supported by EXA.  See

+ * exaDoMigration() for what their implementations do.

+ */

+enum ExaMigrationHeuristic {

+    ExaMigrationGreedy,

+    ExaMigrationAlways,

+    ExaMigrationSmart

+};

+

+typedef struct {

+    unsigned char sha1[20];

+} ExaCachedGlyphRec, *ExaCachedGlyphPtr;

+

+typedef struct {

+    /* The identity of the cache, statically configured at initialization */

+    unsigned int format;

+    int glyphWidth;

+    int glyphHeight;

+

+    int size; /* Size of cache; eventually this should be dynamically determined */

+

+    /* Hash table mapping from glyph sha1 to position in the glyph; we use

+     * open addressing with a hash table size determined based on size and large

+     * enough so that we always have a good amount of free space, so we can

+     * use linear probing. (Linear probing is preferrable to double hashing

+     * here because it allows us to easily remove entries.)

+     */

+    int *hashEntries;

+    int hashSize;

+    

+    ExaCachedGlyphPtr glyphs;

+    int glyphCount; /* Current number of glyphs */

+    

+    PicturePtr picture;   /* Where the glyphs of the cache are stored */

+    int yOffset;          /* y location within the picture where the cache starts */

+    int columns;          /* Number of columns the glyphs are layed out in */

+    int evictionPosition; /* Next random position to evict a glyph */

+} ExaGlyphCacheRec, *ExaGlyphCachePtr;

+

+#define EXA_NUM_GLYPH_CACHES 4

+

+#define EXA_FALLBACK_COPYWINDOW (1 << 0)

+#define EXA_ACCEL_COPYWINDOW (1 << 1)

+

+typedef struct _ExaMigrationRec {

+    Bool as_dst;

+    Bool as_src;

+    PixmapPtr pPix;

+    RegionPtr pReg;

+} ExaMigrationRec, *ExaMigrationPtr;

+

+typedef void (*EnableDisableFBAccessProcPtr)(int, Bool);

+typedef struct {

+    ExaDriverPtr info;

+    ScreenBlockHandlerProcPtr	 SavedBlockHandler;

+    ScreenWakeupHandlerProcPtr	 SavedWakeupHandler;

+    CreateGCProcPtr 		 SavedCreateGC;

+    CloseScreenProcPtr 		 SavedCloseScreen;

+    GetImageProcPtr 		 SavedGetImage;

+    GetSpansProcPtr 		 SavedGetSpans;

+    CreatePixmapProcPtr 	 SavedCreatePixmap;

+    DestroyPixmapProcPtr 	 SavedDestroyPixmap;

+    CopyWindowProcPtr 		 SavedCopyWindow;

+    ChangeWindowAttributesProcPtr SavedChangeWindowAttributes;

+    BitmapToRegionProcPtr        SavedBitmapToRegion;

+    CreateScreenResourcesProcPtr SavedCreateScreenResources;

+    ModifyPixmapHeaderProcPtr    SavedModifyPixmapHeader;

+    SourceValidateProcPtr        SavedSourceValidate;

+    CompositeProcPtr             SavedComposite;

+    TrianglesProcPtr		 SavedTriangles;

+    GlyphsProcPtr                SavedGlyphs;

+    TrapezoidsProcPtr            SavedTrapezoids;

+    AddTrapsProcPtr		 SavedAddTraps;

+    void (*do_migration) (ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel);

+    Bool (*pixmap_has_gpu_copy) (PixmapPtr pPixmap);

+    void (*do_move_in_pixmap) (PixmapPtr pPixmap);

+    void (*do_move_out_pixmap) (PixmapPtr pPixmap);

+    void (*prepare_access_reg)(PixmapPtr pPixmap, int index, RegionPtr pReg);

+

+    Bool			 swappedOut;

+    enum ExaMigrationHeuristic	 migration;

+    Bool			 checkDirtyCorrectness;

+    unsigned			 disableFbCount;

+    Bool			 optimize_migration;

+    unsigned			 offScreenCounter;

+    unsigned			 numOffscreenAvailable;

+    CARD32			 lastDefragment;

+    CARD32			 nextDefragment;

+    PixmapPtr			 deferred_mixed_pixmap;

+

+    /* Reference counting for accessed pixmaps */

+    struct {

+	PixmapPtr pixmap;

+	int count;

+	Bool retval;

+    } access[EXA_NUM_PREPARE_INDICES];

+

+    /* Holds information on fallbacks that cannot be relayed otherwise. */

+    unsigned int fallback_flags;

+    unsigned int fallback_counter;

+

+    ExaGlyphCacheRec             glyphCaches[EXA_NUM_GLYPH_CACHES];

+

+    /**

+     * Regions affected by fallback composite source / mask operations.

+     */

+

+    RegionRec srcReg;

+    RegionRec maskReg;

+    PixmapPtr srcPix;

+

+} ExaScreenPrivRec, *ExaScreenPrivPtr;

+

+/*

+ * This is the only completely portable way to

+ * compute this info.

+ */

+#ifndef BitsPerPixel

+#define BitsPerPixel(d) (\

+    PixmapWidthPaddingInfo[d].notPower2 ? \

+    (PixmapWidthPaddingInfo[d].bytesPerPixel * 8) : \

+    ((1 << PixmapWidthPaddingInfo[d].padBytesLog2) * 8 / \

+    (PixmapWidthPaddingInfo[d].padRoundUp+1)))

+#endif

+

+extern DevPrivateKeyRec exaScreenPrivateKeyRec;

+#define exaScreenPrivateKey (&exaScreenPrivateKeyRec)

+extern DevPrivateKeyRec exaPixmapPrivateKeyRec;

+#define exaPixmapPrivateKey (&exaPixmapPrivateKeyRec)

+extern DevPrivateKeyRec exaGCPrivateKeyRec;

+#define exaGCPrivateKey (&exaGCPrivateKeyRec)

+

+#define ExaGetScreenPriv(s) ((ExaScreenPrivPtr)dixLookupPrivate(&(s)->devPrivates, exaScreenPrivateKey))

+#define ExaScreenPriv(s)	ExaScreenPrivPtr    pExaScr = ExaGetScreenPriv(s)

+

+#define ExaGetGCPriv(gc) ((ExaGCPrivPtr)dixLookupPrivate(&(gc)->devPrivates, exaGCPrivateKey))

+#define ExaGCPriv(gc) ExaGCPrivPtr pExaGC = ExaGetGCPriv(gc)

+

+/*

+ * Some macros to deal with function wrapping.

+ */

+#define wrap(priv, real, mem, func) {\

+    priv->Saved##mem = real->mem; \

+    real->mem = func; \

+}

+

+#define unwrap(priv, real, mem) {\

+    real->mem = priv->Saved##mem; \

+}

+

+#define swap(priv, real, mem) {\

+    void *tmp = priv->Saved##mem; \

+    priv->Saved##mem = real->mem; \

+    real->mem = tmp; \

+}

+

+#define EXA_PRE_FALLBACK(_screen_) \

+    ExaScreenPriv(_screen_); \

+    pExaScr->fallback_counter++;

+

+#define EXA_POST_FALLBACK(_screen_) \

+    pExaScr->fallback_counter--;

+

+#define EXA_PRE_FALLBACK_GC(_gc_) \

+    ExaScreenPriv(_gc_->pScreen); \

+    ExaGCPriv(_gc_); \

+    pExaScr->fallback_counter++; \

+    swap(pExaGC, _gc_, ops);

+

+#define EXA_POST_FALLBACK_GC(_gc_) \

+    pExaScr->fallback_counter--; \

+    swap(pExaGC, _gc_, ops);

+

+/** Align an offset to an arbitrary alignment */

+#define EXA_ALIGN(offset, align) (((offset) + (align) - 1) - \

+	(((offset) + (align) - 1) % (align)))

+/** Align an offset to a power-of-two alignment */

+#define EXA_ALIGN2(offset, align) (((offset) + (align) - 1) & ~((align) - 1))

+

+#define EXA_PIXMAP_SCORE_MOVE_IN    10

+#define EXA_PIXMAP_SCORE_MAX	    20

+#define EXA_PIXMAP_SCORE_MOVE_OUT   -10

+#define EXA_PIXMAP_SCORE_MIN	    -20

+#define EXA_PIXMAP_SCORE_PINNED	    1000

+#define EXA_PIXMAP_SCORE_INIT	    1001

+

+#define ExaGetPixmapPriv(p) ((ExaPixmapPrivPtr)dixLookupPrivate(&(p)->devPrivates, exaPixmapPrivateKey))

+#define ExaSetPixmapPriv(p,a) dixSetPrivate(&(p)->devPrivates, exaPixmapPrivateKey, a)

+#define ExaPixmapPriv(p)	ExaPixmapPrivPtr pExaPixmap = ExaGetPixmapPriv(p)

+

+#define EXA_RANGE_PITCH (1 << 0)

+#define EXA_RANGE_WIDTH (1 << 1)

+#define EXA_RANGE_HEIGHT (1 << 2)

+

+typedef struct {

+    ExaOffscreenArea *area;

+    int		    score;	/**< score for the move-in vs move-out heuristic */

+    Bool	    use_gpu_copy;

+

+    CARD8	    *sys_ptr;	/**< pointer to pixmap data in system memory */

+    int		    sys_pitch;	/**< pitch of pixmap in system memory */

+

+    CARD8	    *fb_ptr;	/**< pointer to pixmap data in framebuffer memory */

+    int		    fb_pitch;	/**< pitch of pixmap in framebuffer memory */

+    unsigned int    fb_size;	/**< size of pixmap in framebuffer memory */

+

+    /**

+     * Holds information about whether this pixmap can be used for

+     * acceleration (== 0) or not (> 0).

+     *

+     * Contains a OR'ed combination of the following values:

+     * EXA_RANGE_PITCH - set if the pixmap's pitch is out of range

+     * EXA_RANGE_WIDTH - set if the pixmap's width is out of range

+     * EXA_RANGE_HEIGHT - set if the pixmap's height is out of range

+     */

+    unsigned int    accel_blocked;

+

+    /**

+     * The damage record contains the areas of the pixmap's current location

+     * (framebuffer or system) that have been damaged compared to the other

+     * location.

+     */

+    DamagePtr	    pDamage;

+    /**

+     * The valid regions mark the valid bits (at least, as they're derived from

+     * damage, which may be overreported) of a pixmap's system and FB copies.

+     */

+    RegionRec	    validSys, validFB;

+    /**

+     * Driver private storage per EXA pixmap

+     */

+    void *driverPriv;

+} ExaPixmapPrivRec, *ExaPixmapPrivPtr;

+

+typedef struct {

+    /* GC values from the layer below. */

+    GCOps *Savedops;

+    GCFuncs *Savedfuncs;

+} ExaGCPrivRec, *ExaGCPrivPtr;

+

+typedef struct {

+    PicturePtr pDst;

+    INT16 xSrc;

+    INT16 ySrc;

+    INT16 xMask;

+    INT16 yMask;

+    INT16 xDst;

+    INT16 yDst;

+    INT16 width;

+    INT16 height;

+} ExaCompositeRectRec, *ExaCompositeRectPtr;

+

+/**

+ * exaDDXDriverInit must be implemented by the DDX using EXA, and is the place

+ * to set EXA options or hook in screen functions to handle using EXA as the AA.

+  */

+void exaDDXDriverInit (ScreenPtr pScreen);

+

+/* exa_unaccel.c */

+void

+exaPrepareAccessGC(GCPtr pGC);

+

+void

+exaFinishAccessGC(GCPtr pGC);

+

+void

+ExaCheckFillSpans  (DrawablePtr pDrawable, GCPtr pGC, int nspans,

+		   DDXPointPtr ppt, int *pwidth, int fSorted);

+

+void

+ExaCheckSetSpans (DrawablePtr pDrawable, GCPtr pGC, char *psrc,

+		 DDXPointPtr ppt, int *pwidth, int nspans, int fSorted);

+

+void

+ExaCheckPutImage (DrawablePtr pDrawable, GCPtr pGC, int depth,

+		 int x, int y, int w, int h, int leftPad, int format,

+		 char *bits);

+

+void

+ExaCheckCopyNtoN (DrawablePtr pSrc, DrawablePtr pDst,  GCPtr pGC,

+	     BoxPtr	pbox, int nbox, int dx, int dy, Bool	reverse, 

+	     Bool upsidedown, Pixel bitplane, void *closure);

+

+RegionPtr

+ExaCheckCopyArea (DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,

+		 int srcx, int srcy, int w, int h, int dstx, int dsty);

+

+RegionPtr

+ExaCheckCopyPlane (DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,

+		  int srcx, int srcy, int w, int h, int dstx, int dsty,

+		  unsigned long bitPlane);

+

+void

+ExaCheckPolyPoint (DrawablePtr pDrawable, GCPtr pGC, int mode, int npt,

+		  DDXPointPtr pptInit);

+

+void

+ExaCheckPolylines (DrawablePtr pDrawable, GCPtr pGC,

+		  int mode, int npt, DDXPointPtr ppt);

+

+void

+ExaCheckPolySegment (DrawablePtr pDrawable, GCPtr pGC,

+		    int nsegInit, xSegment *pSegInit);

+

+void

+ExaCheckPolyArc (DrawablePtr pDrawable, GCPtr pGC,

+		int narcs, xArc *pArcs);

+

+void

+ExaCheckPolyFillRect (DrawablePtr pDrawable, GCPtr pGC,

+		     int nrect, xRectangle *prect);

+

+void

+ExaCheckImageGlyphBlt (DrawablePtr pDrawable, GCPtr pGC,

+		      int x, int y, unsigned int nglyph,

+		      CharInfoPtr *ppci, pointer pglyphBase);

+

+void

+ExaCheckPolyGlyphBlt (DrawablePtr pDrawable, GCPtr pGC,

+		     int x, int y, unsigned int nglyph,

+		     CharInfoPtr *ppci, pointer pglyphBase);

+

+void

+ExaCheckPushPixels (GCPtr pGC, PixmapPtr pBitmap,

+		   DrawablePtr pDrawable,

+		   int w, int h, int x, int y);

+

+void

+ExaCheckCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc);

+

+void

+ExaCheckGetImage(DrawablePtr pDrawable, int x, int y, int w, int h,

+		unsigned int format, unsigned long planeMask, char *d);

+

+void

+ExaCheckGetSpans (DrawablePtr pDrawable,

+		 int wMax,

+		 DDXPointPtr ppt,

+		 int *pwidth,

+		 int nspans,

+		 char *pdstStart);

+

+void

+ExaCheckAddTraps (PicturePtr	pPicture,

+		  INT16		x_off,

+		  INT16		y_off,

+		  int		ntrap,

+		  xTrap		*traps);

+

+/* exa_accel.c */

+

+static _X_INLINE Bool

+exaGCReadsDestination(DrawablePtr pDrawable, unsigned long planemask,

+		      unsigned int fillStyle, unsigned char alu,

+		      unsigned int clientClipType)

+{

+    return ((alu != GXcopy && alu != GXclear && alu != GXset &&

+	     alu != GXcopyInverted) || fillStyle == FillStippled ||

+	    clientClipType != CT_NONE || !EXA_PM_IS_SOLID(pDrawable, planemask));

+}

+

+void

+exaCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc);

+

+Bool

+exaFillRegionTiled (DrawablePtr	pDrawable, RegionPtr pRegion, PixmapPtr pTile,

+		    DDXPointPtr pPatOrg, CARD32 planemask, CARD32 alu,

+		    unsigned int clientClipType);

+

+void

+exaGetImage (DrawablePtr pDrawable, int x, int y, int w, int h,

+	     unsigned int format, unsigned long planeMask, char *d);

+

+RegionPtr

+exaCopyArea(DrawablePtr pSrcDrawable, DrawablePtr pDstDrawable, GCPtr pGC,

+	    int srcx, int srcy, int width, int height, int dstx, int dsty);

+

+Bool

+exaHWCopyNtoN (DrawablePtr    pSrcDrawable,

+	     DrawablePtr    pDstDrawable,

+	     GCPtr	    pGC,

+	     BoxPtr	    pbox,

+	     int	    nbox,

+	     int	    dx,

+	     int	    dy,

+	     Bool	    reverse,

+	     Bool	    upsidedown);

+

+void

+exaCopyNtoN (DrawablePtr    pSrcDrawable,

+	     DrawablePtr    pDstDrawable,

+	     GCPtr	    pGC,

+	     BoxPtr	    pbox,

+	     int	    nbox,

+	     int	    dx,

+	     int	    dy,

+	     Bool	    reverse,

+	     Bool	    upsidedown,

+	     Pixel	    bitplane,

+	     void	    *closure);

+

+extern const GCOps exaOps;

+

+void

+ExaCheckComposite (CARD8      op,

+		  PicturePtr pSrc,

+		  PicturePtr pMask,

+		  PicturePtr pDst,

+		  INT16      xSrc,

+		  INT16      ySrc,

+		  INT16      xMask,

+		  INT16      yMask,

+		  INT16      xDst,

+		  INT16      yDst,

+		  CARD16     width,

+		  CARD16     height);

+

+void

+ExaCheckGlyphs (CARD8	      op,

+		PicturePtr    pSrc,

+		PicturePtr    pDst,

+		PictFormatPtr maskFormat,

+		INT16	      xSrc,

+		INT16	      ySrc,

+		int	      nlist,

+		GlyphListPtr  list,

+		GlyphPtr      *glyphs);

+

+/* exa_offscreen.c */

+void

+ExaOffscreenSwapOut (ScreenPtr pScreen);

+

+void

+ExaOffscreenSwapIn (ScreenPtr pScreen);

+

+ExaOffscreenArea*

+ExaOffscreenDefragment (ScreenPtr pScreen);

+

+Bool

+exaOffscreenInit(ScreenPtr pScreen);

+

+void

+ExaOffscreenFini (ScreenPtr pScreen);

+

+/* exa.c */

+Bool

+ExaDoPrepareAccess(PixmapPtr pPixmap, int index);

+

+void

+exaPrepareAccess(DrawablePtr pDrawable, int index);

+

+void

+exaFinishAccess(DrawablePtr pDrawable, int index);

+

+void

+exaDestroyPixmap(PixmapPtr pPixmap);

+

+void

+exaPixmapDirty(PixmapPtr pPix, int x1, int y1, int x2, int y2);

+

+void

+exaGetDrawableDeltas (DrawablePtr pDrawable, PixmapPtr pPixmap,

+		      int *xp, int *yp);

+

+Bool

+exaPixmapHasGpuCopy(PixmapPtr p);

+

+PixmapPtr

+exaGetOffscreenPixmap (DrawablePtr pDrawable, int *xp, int *yp);

+

+PixmapPtr

+exaGetDrawablePixmap(DrawablePtr pDrawable);

+

+void

+exaSetFbPitch(ExaScreenPrivPtr pExaScr, ExaPixmapPrivPtr pExaPixmap,

+              int w, int h, int bpp);

+

+void

+exaSetAccelBlock(ExaScreenPrivPtr pExaScr, ExaPixmapPrivPtr pExaPixmap,

+                 int w, int h, int bpp);

+

+void

+exaDoMigration (ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel);

+

+Bool

+exaPixmapIsPinned (PixmapPtr pPix);

+

+extern const GCFuncs exaGCFuncs;

+

+/* exa_classic.c */

+PixmapPtr

+exaCreatePixmap_classic(ScreenPtr pScreen, int w, int h, int depth,

+		unsigned usage_hint);

+

+Bool

+exaModifyPixmapHeader_classic(PixmapPtr pPixmap, int width, int height, int depth,

+		      int bitsPerPixel, int devKind, pointer pPixData);

+

+Bool

+exaDestroyPixmap_classic (PixmapPtr pPixmap);

+

+Bool

+exaPixmapHasGpuCopy_classic(PixmapPtr pPixmap);

+

+/* exa_driver.c */

+PixmapPtr

+exaCreatePixmap_driver(ScreenPtr pScreen, int w, int h, int depth,

+		unsigned usage_hint);

+

+Bool

+exaModifyPixmapHeader_driver(PixmapPtr pPixmap, int width, int height, int depth,

+		      int bitsPerPixel, int devKind, pointer pPixData);

+

+Bool

+exaDestroyPixmap_driver (PixmapPtr pPixmap);

+

+Bool

+exaPixmapHasGpuCopy_driver(PixmapPtr pPixmap);

+

+/* exa_mixed.c */

+PixmapPtr

+exaCreatePixmap_mixed(ScreenPtr pScreen, int w, int h, int depth,

+		unsigned usage_hint);

+

+Bool

+exaModifyPixmapHeader_mixed(PixmapPtr pPixmap, int width, int height, int depth,

+		      int bitsPerPixel, int devKind, pointer pPixData);

+

+Bool

+exaDestroyPixmap_mixed(PixmapPtr pPixmap);

+

+Bool

+exaPixmapHasGpuCopy_mixed(PixmapPtr pPixmap);

+

+/* exa_migration_mixed.c */

+void

+exaCreateDriverPixmap_mixed(PixmapPtr pPixmap);

+

+void

+exaDoMigration_mixed(ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel);

+

+void

+exaMoveInPixmap_mixed(PixmapPtr pPixmap);

+

+void

+exaDamageReport_mixed(DamagePtr pDamage, RegionPtr pRegion, void *closure);

+

+void

+exaPrepareAccessReg_mixed(PixmapPtr pPixmap, int index, RegionPtr pReg);

+

+/* exa_render.c */

+Bool

+exaOpReadsDestination (CARD8 op);

+

+void

+exaComposite(CARD8	op,

+	     PicturePtr pSrc,

+	     PicturePtr pMask,

+	     PicturePtr pDst,

+	     INT16	xSrc,

+	     INT16	ySrc,

+	     INT16	xMask,

+	     INT16	yMask,

+	     INT16	xDst,

+	     INT16	yDst,

+	     CARD16	width,

+	     CARD16	height);

+

+void

+exaCompositeRects(CARD8	              op,

+		  PicturePtr	      Src,

+		  PicturePtr	      pMask,

+		  PicturePtr	      pDst,

+		  int                 nrect,

+		  ExaCompositeRectPtr rects);

+

+void

+exaTrapezoids (CARD8 op, PicturePtr pSrc, PicturePtr pDst,

+               PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc,

+               int ntrap, xTrapezoid *traps);

+

+void

+exaTriangles (CARD8 op, PicturePtr pSrc, PicturePtr pDst,

+	      PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc,

+	      int ntri, xTriangle *tris);

+

+/* exa_glyph.c */

+void

+exaGlyphsInit(ScreenPtr pScreen);

+

+void

+exaGlyphsFini (ScreenPtr pScreen);

+

+void

+exaGlyphs (CARD8	op,

+	  PicturePtr	pSrc,

+	  PicturePtr	pDst,

+	  PictFormatPtr	maskFormat,

+	  INT16		xSrc,

+	  INT16		ySrc,

+	  int		nlist,

+	  GlyphListPtr	list,

+	  GlyphPtr	*glyphs);

+

+/* exa_migration_classic.c */

+void

+exaCopyDirtyToSys (ExaMigrationPtr migrate);

+

+void

+exaCopyDirtyToFb (ExaMigrationPtr migrate);

+

+void

+exaDoMigration_classic (ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel);

+

+void

+exaPixmapSave (ScreenPtr pScreen, ExaOffscreenArea *area);

+

+void

+exaMoveOutPixmap_classic (PixmapPtr pPixmap);

+

+void

+exaMoveInPixmap_classic (PixmapPtr pPixmap);

+

+void

+exaPrepareAccessReg_classic(PixmapPtr pPixmap, int index, RegionPtr pReg);

+

+#endif /* EXAPRIV_H */