xserver git update 15/5/2010

1 files changed, 643 insertions, 643 deletions

diff --git a/xorg-server/render/mipict.c b/xorg-server/render/mipict.c
index b5dfcb2ba..3f88beba2 100644
--- a/xorg-server/render/mipict.c
+++ b/xorg-server/render/mipict.c
@@ -1,643 +1,643 @@
-/*
- *
- * Copyright © 1999 Keith Packard
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of 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.
- *
- * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include "scrnintstr.h"
-#include "gcstruct.h"
-#include "pixmapstr.h"
-#include "windowstr.h"
-#include "mi.h"
-#include "picturestr.h"
-#include "mipict.h"
-
-#ifndef __GNUC__
-#define __inline
-#endif
-
-int
-miCreatePicture (PicturePtr pPicture)
-{
-    return Success;
-}
-
-void
-miDestroyPicture (PicturePtr pPicture)
-{
-    if (pPicture->freeCompClip)
-	REGION_DESTROY(pPicture->pDrawable->pScreen, pPicture->pCompositeClip);
-}
-
-void
-miDestroyPictureClip (PicturePtr pPicture)
-{
-    switch (pPicture->clientClipType) {
-    case CT_NONE:
-	return;
-    case CT_PIXMAP:
-	(*pPicture->pDrawable->pScreen->DestroyPixmap) ((PixmapPtr) (pPicture->clientClip));
-	break;
-    default:
-	/*
-	 * we know we'll never have a list of rectangles, since ChangeClip
-	 * immediately turns them into a region
-	 */
-	REGION_DESTROY(pPicture->pDrawable->pScreen, pPicture->clientClip);
-	break;
-    }
-    pPicture->clientClip = NULL;
-    pPicture->clientClipType = CT_NONE;
-}    
-
-int
-miChangePictureClip (PicturePtr    pPicture,
-		     int	   type,
-		     pointer	   value,
-		     int	   n)
-{
-    ScreenPtr		pScreen = pPicture->pDrawable->pScreen;
-    PictureScreenPtr    ps = GetPictureScreen(pScreen);
-    pointer		clientClip;
-    int			clientClipType;
-    
-    switch (type) {
-    case CT_PIXMAP:
-	/* convert the pixmap to a region */
-	clientClip = (pointer) BITMAP_TO_REGION(pScreen, (PixmapPtr) value);
-	if (!clientClip)
-	    return BadAlloc;
-	clientClipType = CT_REGION;
-	(*pScreen->DestroyPixmap) ((PixmapPtr) value);
-	break;
-    case CT_REGION:
-	clientClip = value;
-	clientClipType = CT_REGION;
-	break;
-    case CT_NONE:
-	clientClip = 0;
-	clientClipType = CT_NONE;
-	break;
-    default:
-	clientClip = (pointer) RECTS_TO_REGION(pScreen, n,
-					       (xRectangle *) value,
-					       type);
-	if (!clientClip)
-	    return BadAlloc;
-	clientClipType = CT_REGION;
-	xfree(value);
-	break;
-    }
-    (*ps->DestroyPictureClip) (pPicture);
-    pPicture->clientClip = clientClip;
-    pPicture->clientClipType = clientClipType;
-    pPicture->stateChanges |= CPClipMask;
-    return Success;
-}
-
-void
-miChangePicture (PicturePtr pPicture,
-		 Mask       mask)
-{
-    return;
-}
-
-void
-miValidatePicture (PicturePtr pPicture,
-		   Mask       mask)
-{
-    DrawablePtr	    pDrawable = pPicture->pDrawable;
-
-    if ((mask & (CPClipXOrigin|CPClipYOrigin|CPClipMask|CPSubwindowMode)) ||
-	(pDrawable->serialNumber != (pPicture->serialNumber & DRAWABLE_SERIAL_BITS)))
-    {
-	if (pDrawable->type == DRAWABLE_WINDOW)
-	{
-	    WindowPtr       pWin = (WindowPtr) pDrawable;
-	    RegionPtr       pregWin;
-	    Bool            freeTmpClip, freeCompClip;
-
-	    if (pPicture->subWindowMode == IncludeInferiors)
-	    {
-		pregWin = NotClippedByChildren(pWin);
-		freeTmpClip = TRUE;
-	    }
-	    else
-	    {
-		pregWin = &pWin->clipList;
-		freeTmpClip = FALSE;
-	    }
-	    freeCompClip = pPicture->freeCompClip;
-
-	    /*
-	     * if there is no client clip, we can get by with just keeping the
-	     * pointer we got, and remembering whether or not should destroy
-	     * (or maybe re-use) it later.  this way, we avoid unnecessary
-	     * copying of regions.  (this wins especially if many clients clip
-	     * by children and have no client clip.)
-	     */
-	    if (pPicture->clientClipType == CT_NONE)
-	    {
-		if (freeCompClip)
-		    REGION_DESTROY(pScreen, pPicture->pCompositeClip);
-		pPicture->pCompositeClip = pregWin;
-		pPicture->freeCompClip = freeTmpClip;
-	    }
-	    else
-	    {
-		/*
-		 * we need one 'real' region to put into the composite clip. if
-		 * pregWin the current composite clip are real, we can get rid of
-		 * one. if pregWin is real and the current composite clip isn't,
-		 * use pregWin for the composite clip. if the current composite
-		 * clip is real and pregWin isn't, use the current composite
-		 * clip. if neither is real, create a new region.
-		 */
-
-		REGION_TRANSLATE(pScreen, pPicture->clientClip,
-				 pDrawable->x + pPicture->clipOrigin.x,
-				 pDrawable->y + pPicture->clipOrigin.y);
-
-		if (freeCompClip)
-		{
-		    REGION_INTERSECT(pScreen, pPicture->pCompositeClip,
-				     pregWin, pPicture->clientClip);
-		    if (freeTmpClip)
-			REGION_DESTROY(pScreen, pregWin);
-		}
-		else if (freeTmpClip)
-		{
-		    REGION_INTERSECT(pScreen, pregWin, pregWin, pPicture->clientClip);
-		    pPicture->pCompositeClip = pregWin;
-		}
-		else
-		{
-		    pPicture->pCompositeClip = REGION_CREATE(pScreen, NullBox, 0);
-		    REGION_INTERSECT(pScreen, pPicture->pCompositeClip,
-				     pregWin, pPicture->clientClip);
-		}
-		pPicture->freeCompClip = TRUE;
-		REGION_TRANSLATE(pScreen, pPicture->clientClip,
-				 -(pDrawable->x + pPicture->clipOrigin.x),
-				 -(pDrawable->y + pPicture->clipOrigin.y));
-	    }
-	}	/* end of composite clip for a window */
-	else
-	{
-	    BoxRec          pixbounds;
-
-	    /* XXX should we translate by drawable.x/y here ? */
-	    /* If you want pixmaps in offscreen memory, yes */
-	    pixbounds.x1 = pDrawable->x;
-	    pixbounds.y1 = pDrawable->y;
-	    pixbounds.x2 = pDrawable->x + pDrawable->width;
-	    pixbounds.y2 = pDrawable->y + pDrawable->height;
-
-	    if (pPicture->freeCompClip)
-	    {
-		REGION_RESET(pScreen, pPicture->pCompositeClip, &pixbounds);
-	    }
-	    else
-	    {
-		pPicture->freeCompClip = TRUE;
-		pPicture->pCompositeClip = REGION_CREATE(pScreen, &pixbounds, 1);
-	    }
-
-	    if (pPicture->clientClipType == CT_REGION)
-	    {
-		if(pDrawable->x || pDrawable->y) {
-		    REGION_TRANSLATE(pScreen, pPicture->clientClip,
-				     pDrawable->x + pPicture->clipOrigin.x, 
-				     pDrawable->y + pPicture->clipOrigin.y);
-		    REGION_INTERSECT(pScreen, pPicture->pCompositeClip,
-				     pPicture->pCompositeClip, pPicture->clientClip);
-		    REGION_TRANSLATE(pScreen, pPicture->clientClip,
-				     -(pDrawable->x + pPicture->clipOrigin.x), 
-				     -(pDrawable->y + pPicture->clipOrigin.y));
-		} else {
-		    REGION_TRANSLATE(pScreen, pPicture->pCompositeClip,
-				     -pPicture->clipOrigin.x, -pPicture->clipOrigin.y);
-		    REGION_INTERSECT(pScreen, pPicture->pCompositeClip,
-				     pPicture->pCompositeClip, pPicture->clientClip);
-		    REGION_TRANSLATE(pScreen, pPicture->pCompositeClip,
-				     pPicture->clipOrigin.x, pPicture->clipOrigin.y);
-		}
-	    }
-	}	/* end of composite clip for pixmap */
-    }
-}
-
-int
-miChangePictureTransform (PicturePtr	pPicture,
-			  PictTransform *transform)
-{
-    return Success;
-}
-
-int
-miChangePictureFilter (PicturePtr pPicture,
-		       int	  filter,
-		       xFixed     *params,
-		       int	  nparams)
-{
-    return Success;
-}
-
-#define BOUND(v)	(INT16) ((v) < MINSHORT ? MINSHORT : (v) > MAXSHORT ? MAXSHORT : (v))
-
-static inline pixman_bool_t
-miClipPictureReg (pixman_region16_t *	pRegion,
-		  pixman_region16_t *	pClip,
-		  int		dx,
-		  int		dy)
-{
-    if (pixman_region_n_rects(pRegion) == 1 &&
-	pixman_region_n_rects(pClip) == 1)
-    {
-	pixman_box16_t *  pRbox = pixman_region_rectangles(pRegion, NULL);
-	pixman_box16_t *  pCbox = pixman_region_rectangles(pClip, NULL);
-	int	v;
-	
-	if (pRbox->x1 < (v = pCbox->x1 + dx))
-	    pRbox->x1 = BOUND(v);
-	if (pRbox->x2 > (v = pCbox->x2 + dx))
-	    pRbox->x2 = BOUND(v);
-	if (pRbox->y1 < (v = pCbox->y1 + dy))
-	    pRbox->y1 = BOUND(v);
-	if (pRbox->y2 > (v = pCbox->y2 + dy))
-	    pRbox->y2 = BOUND(v);
-	if (pRbox->x1 >= pRbox->x2 ||
-	    pRbox->y1 >= pRbox->y2)
-	{
-	    pixman_region_init (pRegion);
-	}
-    }
-    else if (!pixman_region_not_empty (pClip))
-	return FALSE;
-    else
-    {
-	if (dx || dy)
-	    pixman_region_translate (pRegion, -dx, -dy);
-	if (!pixman_region_intersect (pRegion, pRegion, pClip))
-	    return FALSE;
-	if (dx || dy)
-	    pixman_region_translate(pRegion, dx, dy);
-    }
-    return pixman_region_not_empty(pRegion);
-}
-
-static __inline Bool
-miClipPictureSrc (RegionPtr	pRegion,
-		  PicturePtr	pPicture,
-		  int		dx,
-		  int		dy)
-{
-    if (pPicture->clientClipType != CT_NONE)
-    {
-	Bool result;
-	
-	pixman_region_translate ( pPicture->clientClip,
-				  pPicture->clipOrigin.x + dx,
-				  pPicture->clipOrigin.y + dy);
-
-	result = REGION_INTERSECT (pScreen, pRegion, pRegion, pPicture->clientClip);
-	
-	pixman_region_translate ( pPicture->clientClip,
-				  - (pPicture->clipOrigin.x + dx),
-				  - (pPicture->clipOrigin.y + dy));
-
-	if (!result)
-	    return FALSE;
-    }
-    return TRUE;
-}
-
-void
-miCompositeSourceValidate (PicturePtr	pPicture,
-			   INT16	x,
-			   INT16	y,
-			   CARD16	width,
-			   CARD16	height)
-{
-    DrawablePtr	pDrawable = pPicture->pDrawable;
-    ScreenPtr	pScreen;
-
-    if (!pDrawable)
-        return;
-
-    pScreen = pDrawable->pScreen;
-    
-    if (pScreen->SourceValidate)
-    {
-	if (pPicture->transform)
-	{
-	    xPoint	    points[4];
-	    int		    i;
-	    int		    xmin, ymin, xmax, ymax;
-
-#define VectorSet(i,_x,_y) { points[i].x = _x; points[i].y = _y; }
-	    VectorSet (0, x, y);
-	    VectorSet (1, x + width, y);
-	    VectorSet (2, x, y + height);
-	    VectorSet (3, x + width, y + height);
-	    xmin = ymin = 32767;
-	    xmax = ymax = -32737;
-	    for (i = 0; i < 4; i++)
-	    {
-		PictVector  t;
-		t.vector[0] = IntToxFixed (points[i].x);
-		t.vector[1] = IntToxFixed (points[i].y);
-		t.vector[2] = xFixed1;
-		if (pixman_transform_point (pPicture->transform, &t))
-		{
-		    int	tx = xFixedToInt (t.vector[0]);
-		    int ty = xFixedToInt (t.vector[1]);
-		    if (tx < xmin) xmin = tx;
-		    if (tx > xmax) xmax = tx;
-		    if (ty < ymin) ymin = ty;
-		    if (ty > ymax) ymax = ty;
-		}
-	    }
-	    x = xmin;
-	    y = ymin;
-	    width = xmax - xmin;
-	    height = ymax - ymin;
-	}
-        x += pPicture->pDrawable->x;
-        y += pPicture->pDrawable->y;
-	(*pScreen->SourceValidate) (pDrawable, x, y, width, height);
-    }
-}
-
-/*
- * returns FALSE if the final region is empty.  Indistinguishable from
- * an allocation failure, but rendering ignores those anyways.
- */
-
-Bool
-miComputeCompositeRegion (RegionPtr	pRegion,
-			  PicturePtr	pSrc,
-			  PicturePtr	pMask,
-			  PicturePtr	pDst,
-			  INT16		xSrc,
-			  INT16		ySrc,
-			  INT16		xMask,
-			  INT16		yMask,
-			  INT16		xDst,
-			  INT16		yDst,
-			  CARD16	width,
-			  CARD16	height)
-{
-    
-    int		v;
-
-    pRegion->extents.x1 = xDst;
-    v = xDst + width;
-    pRegion->extents.x2 = BOUND(v);
-    pRegion->extents.y1 = yDst;
-    v = yDst + height;
-    pRegion->extents.y2 = BOUND(v);
-    pRegion->data = 0;
-    /* Check for empty operation */
-    if (pRegion->extents.x1 >= pRegion->extents.x2 ||
-	pRegion->extents.y1 >= pRegion->extents.y2)
-    {
-	pixman_region_init (pRegion);
-	return FALSE;
-    }
-    /* clip against dst */
-    if (!miClipPictureReg (pRegion, pDst->pCompositeClip, 0, 0))
-    {
-	pixman_region_fini (pRegion);
-	return FALSE;
-    }
-    if (pDst->alphaMap)
-    {
-	if (!miClipPictureReg (pRegion, pDst->alphaMap->pCompositeClip,
-			       -pDst->alphaOrigin.x,
-			       -pDst->alphaOrigin.y))
-	{
-	    pixman_region_fini (pRegion);
-	    return FALSE;
-	}
-    }
-    /* clip against src */
-    if (!miClipPictureSrc (pRegion, pSrc, xDst - xSrc, yDst - ySrc))
-    {
-	pixman_region_fini (pRegion);
-	return FALSE;
-    }
-    if (pSrc->alphaMap)
-    {
-	if (!miClipPictureSrc (pRegion, pSrc->alphaMap,
-			       xDst - (xSrc - pSrc->alphaOrigin.x),
-			       yDst - (ySrc - pSrc->alphaOrigin.y)))
-	{
-	    pixman_region_fini (pRegion);
-	    return FALSE;
-	}
-    }
-    /* clip against mask */
-    if (pMask)
-    {
-	if (!miClipPictureSrc (pRegion, pMask, xDst - xMask, yDst - yMask))
-	{
-	    pixman_region_fini (pRegion);
-	    return FALSE;
-	}	
-	if (pMask->alphaMap)
-	{
-	    if (!miClipPictureSrc (pRegion, pMask->alphaMap,
-				   xDst - (xMask - pMask->alphaOrigin.x),
-				   yDst - (yMask - pMask->alphaOrigin.y)))
-	    {
-		pixman_region_fini (pRegion);
-		return FALSE;
-	    }
-	}
-    }
-
-    
-    miCompositeSourceValidate (pSrc, xSrc, ySrc, width, height);
-    if (pMask)
-	miCompositeSourceValidate (pMask, xMask, yMask, width, height);
-
-    return TRUE;
-}
-
-void
-miRenderColorToPixel (PictFormatPtr format,
-		      xRenderColor  *color,
-		      CARD32	    *pixel)
-{
-    CARD32	    r, g, b, a;
-    miIndexedPtr    pIndexed;
-
-    switch (format->type) {
-    case PictTypeDirect:
-	r = color->red >> (16 - Ones (format->direct.redMask));
-	g = color->green >> (16 - Ones (format->direct.greenMask));
-	b = color->blue >> (16 - Ones (format->direct.blueMask));
-	a = color->alpha >> (16 - Ones (format->direct.alphaMask));
-	r = r << format->direct.red;
-	g = g << format->direct.green;
-	b = b << format->direct.blue;
-	a = a << format->direct.alpha;
-	*pixel = r|g|b|a;
-	break;
-    case PictTypeIndexed:
-	pIndexed = (miIndexedPtr) (format->index.devPrivate);
-	if (pIndexed->color)
-	{
-	    r = color->red >> 11;
-	    g = color->green >> 11;
-	    b = color->blue >> 11;
-	    *pixel = miIndexToEnt15 (pIndexed, (r << 10) | (g << 5) | b);
-	}
-	else
-	{
-	    r = color->red >> 8;
-	    g = color->green >> 8;
-	    b = color->blue >> 8;
-	    *pixel = miIndexToEntY24 (pIndexed, (r << 16) | (g << 8) | b);
-	}
-	break;
-    }
-}
-
-static CARD16
-miFillColor (CARD32 pixel, int bits)
-{
-    while (bits < 16)
-    {
-	pixel |= pixel << bits;
-	bits <<= 1;
-    }
-    return (CARD16) pixel;
-}
-
-Bool
-miIsSolidAlpha (PicturePtr pSrc)
-{
-    ScreenPtr	pScreen;
-    char	line[1];
-
-    if (!pSrc->pDrawable)
-        return FALSE;
-
-    pScreen = pSrc->pDrawable->pScreen;
-    
-    /* Alpha-only */
-    if (PICT_FORMAT_TYPE (pSrc->format) != PICT_TYPE_A)
-	return FALSE;
-    /* repeat */
-    if (!pSrc->repeat)
-	return FALSE;
-    /* 1x1 */
-    if (pSrc->pDrawable->width != 1 || pSrc->pDrawable->height != 1)
-	return FALSE;
-    line[0] = 1;
-    (*pScreen->GetImage) (pSrc->pDrawable, 0, 0, 1, 1, ZPixmap, ~0L, line);
-    switch (pSrc->pDrawable->bitsPerPixel) {
-    case 1:
-	return (CARD8) line[0] == 1 || (CARD8) line[0] == 0x80;
-    case 4:
-	return (CARD8) line[0] == 0xf || (CARD8) line[0] == 0xf0;
-    case 8:
-	return (CARD8) line[0] == 0xff;
-    default:
-	return FALSE;
-    }
-}
-
-void
-miRenderPixelToColor (PictFormatPtr format,
-		      CARD32	    pixel,
-		      xRenderColor  *color)
-{
-    CARD32	    r, g, b, a;
-    miIndexedPtr    pIndexed;
-    
-    switch (format->type) {
-    case PictTypeDirect:
-	r = (pixel >> format->direct.red) & format->direct.redMask;
-	g = (pixel >> format->direct.green) & format->direct.greenMask;
-	b = (pixel >> format->direct.blue) & format->direct.blueMask;
-	a = (pixel >> format->direct.alpha) & format->direct.alphaMask;
-	color->red = miFillColor (r, Ones (format->direct.redMask));
-	color->green = miFillColor (g, Ones (format->direct.greenMask));
-	color->blue = miFillColor (b, Ones (format->direct.blueMask));
-	color->alpha = miFillColor (a, Ones (format->direct.alphaMask));
-	break;
-    case PictTypeIndexed:
-	pIndexed = (miIndexedPtr) (format->index.devPrivate);
-	pixel = pIndexed->rgba[pixel & (MI_MAX_INDEXED-1)];
-	r = (pixel >> 16) & 0xff;
-	g = (pixel >>  8) & 0xff;
-	b = (pixel      ) & 0xff;
-	color->red = miFillColor (r, 8);
-	color->green = miFillColor (g, 8);
-	color->blue = miFillColor (b, 8);
-	color->alpha = 0xffff;
-	break;
-    }
-}
-
-Bool
-miPictureInit (ScreenPtr pScreen, PictFormatPtr formats, int nformats)
-{
-    PictureScreenPtr    ps;
-    
-    if (!PictureInit (pScreen, formats, nformats))
-	return FALSE;
-    ps = GetPictureScreen(pScreen);
-    ps->CreatePicture = miCreatePicture;
-    ps->DestroyPicture = miDestroyPicture;
-    ps->ChangePictureClip = miChangePictureClip;
-    ps->DestroyPictureClip = miDestroyPictureClip;
-    ps->ChangePicture = miChangePicture;
-    ps->ValidatePicture = miValidatePicture;
-    ps->InitIndexed = miInitIndexed;
-    ps->CloseIndexed = miCloseIndexed;
-    ps->UpdateIndexed = miUpdateIndexed;
-    ps->ChangePictureTransform = miChangePictureTransform;
-    ps->ChangePictureFilter = miChangePictureFilter;
-    ps->RealizeGlyph = miRealizeGlyph;
-    ps->UnrealizeGlyph = miUnrealizeGlyph;
-
-    /* MI rendering routines */
-    ps->Composite	= 0;			/* requires DDX support */
-    ps->Glyphs		= miGlyphs;
-    ps->CompositeRects	= miCompositeRects;
-    ps->Trapezoids	= miTrapezoids;
-    ps->Triangles	= miTriangles;
-    ps->TriStrip	= miTriStrip;
-    ps->TriFan		= miTriFan;
-    
-    ps->RasterizeTrapezoid = 0;			/* requires DDX support */
-    ps->AddTraps	= 0;			/* requires DDX support */
-    ps->AddTriangles	= 0;			/* requires DDX support */
-
-    return TRUE;
-}
+/*

+ *

+ * Copyright © 1999 Keith Packard

+ *

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

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

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

+ * copyright notice and this permission notice appear in supporting

+ * documentation, and that the name of 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.

+ *

+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

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

+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR

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

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

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

+ * PERFORMANCE OF THIS SOFTWARE.

+ */

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include "scrnintstr.h"

+#include "gcstruct.h"

+#include "pixmapstr.h"

+#include "windowstr.h"

+#include "mi.h"

+#include "picturestr.h"

+#include "mipict.h"

+

+#ifndef __GNUC__

+#define __inline

+#endif

+

+int

+miCreatePicture (PicturePtr pPicture)

+{

+    return Success;

+}

+

+void

+miDestroyPicture (PicturePtr pPicture)

+{

+    if (pPicture->freeCompClip)

+	REGION_DESTROY(pPicture->pDrawable->pScreen, pPicture->pCompositeClip);

+}

+

+void

+miDestroyPictureClip (PicturePtr pPicture)

+{

+    switch (pPicture->clientClipType) {

+    case CT_NONE:

+	return;

+    case CT_PIXMAP:

+	(*pPicture->pDrawable->pScreen->DestroyPixmap) ((PixmapPtr) (pPicture->clientClip));

+	break;

+    default:

+	/*

+	 * we know we'll never have a list of rectangles, since ChangeClip

+	 * immediately turns them into a region

+	 */

+	REGION_DESTROY(pPicture->pDrawable->pScreen, pPicture->clientClip);

+	break;

+    }

+    pPicture->clientClip = NULL;

+    pPicture->clientClipType = CT_NONE;

+}    

+

+int

+miChangePictureClip (PicturePtr    pPicture,

+		     int	   type,

+		     pointer	   value,

+		     int	   n)

+{

+    ScreenPtr		pScreen = pPicture->pDrawable->pScreen;

+    PictureScreenPtr    ps = GetPictureScreen(pScreen);

+    pointer		clientClip;

+    int			clientClipType;

+    

+    switch (type) {

+    case CT_PIXMAP:

+	/* convert the pixmap to a region */

+	clientClip = (pointer) BITMAP_TO_REGION(pScreen, (PixmapPtr) value);

+	if (!clientClip)

+	    return BadAlloc;

+	clientClipType = CT_REGION;

+	(*pScreen->DestroyPixmap) ((PixmapPtr) value);

+	break;

+    case CT_REGION:

+	clientClip = value;

+	clientClipType = CT_REGION;

+	break;

+    case CT_NONE:

+	clientClip = 0;

+	clientClipType = CT_NONE;

+	break;

+    default:

+	clientClip = (pointer) RECTS_TO_REGION(pScreen, n,

+					       (xRectangle *) value,

+					       type);

+	if (!clientClip)

+	    return BadAlloc;

+	clientClipType = CT_REGION;

+	free(value);

+	break;

+    }

+    (*ps->DestroyPictureClip) (pPicture);

+    pPicture->clientClip = clientClip;

+    pPicture->clientClipType = clientClipType;

+    pPicture->stateChanges |= CPClipMask;

+    return Success;

+}

+

+void

+miChangePicture (PicturePtr pPicture,

+		 Mask       mask)

+{

+    return;

+}

+

+void

+miValidatePicture (PicturePtr pPicture,

+		   Mask       mask)

+{

+    DrawablePtr	    pDrawable = pPicture->pDrawable;

+

+    if ((mask & (CPClipXOrigin|CPClipYOrigin|CPClipMask|CPSubwindowMode)) ||

+	(pDrawable->serialNumber != (pPicture->serialNumber & DRAWABLE_SERIAL_BITS)))

+    {

+	if (pDrawable->type == DRAWABLE_WINDOW)

+	{

+	    WindowPtr       pWin = (WindowPtr) pDrawable;

+	    RegionPtr       pregWin;

+	    Bool            freeTmpClip, freeCompClip;

+

+	    if (pPicture->subWindowMode == IncludeInferiors)

+	    {

+		pregWin = NotClippedByChildren(pWin);

+		freeTmpClip = TRUE;

+	    }

+	    else

+	    {

+		pregWin = &pWin->clipList;

+		freeTmpClip = FALSE;

+	    }

+	    freeCompClip = pPicture->freeCompClip;

+

+	    /*

+	     * if there is no client clip, we can get by with just keeping the

+	     * pointer we got, and remembering whether or not should destroy

+	     * (or maybe re-use) it later.  this way, we avoid unnecessary

+	     * copying of regions.  (this wins especially if many clients clip

+	     * by children and have no client clip.)

+	     */

+	    if (pPicture->clientClipType == CT_NONE)

+	    {

+		if (freeCompClip)

+		    REGION_DESTROY(pScreen, pPicture->pCompositeClip);

+		pPicture->pCompositeClip = pregWin;

+		pPicture->freeCompClip = freeTmpClip;

+	    }

+	    else

+	    {

+		/*

+		 * we need one 'real' region to put into the composite clip. if

+		 * pregWin the current composite clip are real, we can get rid of

+		 * one. if pregWin is real and the current composite clip isn't,

+		 * use pregWin for the composite clip. if the current composite

+		 * clip is real and pregWin isn't, use the current composite

+		 * clip. if neither is real, create a new region.

+		 */

+

+		REGION_TRANSLATE(pScreen, pPicture->clientClip,

+				 pDrawable->x + pPicture->clipOrigin.x,

+				 pDrawable->y + pPicture->clipOrigin.y);

+

+		if (freeCompClip)

+		{

+		    REGION_INTERSECT(pScreen, pPicture->pCompositeClip,

+				     pregWin, pPicture->clientClip);

+		    if (freeTmpClip)

+			REGION_DESTROY(pScreen, pregWin);

+		}

+		else if (freeTmpClip)

+		{

+		    REGION_INTERSECT(pScreen, pregWin, pregWin, pPicture->clientClip);

+		    pPicture->pCompositeClip = pregWin;

+		}

+		else

+		{

+		    pPicture->pCompositeClip = REGION_CREATE(pScreen, NullBox, 0);

+		    REGION_INTERSECT(pScreen, pPicture->pCompositeClip,

+				     pregWin, pPicture->clientClip);

+		}

+		pPicture->freeCompClip = TRUE;

+		REGION_TRANSLATE(pScreen, pPicture->clientClip,

+				 -(pDrawable->x + pPicture->clipOrigin.x),

+				 -(pDrawable->y + pPicture->clipOrigin.y));

+	    }

+	}	/* end of composite clip for a window */

+	else

+	{

+	    BoxRec          pixbounds;

+

+	    /* XXX should we translate by drawable.x/y here ? */

+	    /* If you want pixmaps in offscreen memory, yes */

+	    pixbounds.x1 = pDrawable->x;

+	    pixbounds.y1 = pDrawable->y;

+	    pixbounds.x2 = pDrawable->x + pDrawable->width;

+	    pixbounds.y2 = pDrawable->y + pDrawable->height;

+

+	    if (pPicture->freeCompClip)

+	    {

+		REGION_RESET(pScreen, pPicture->pCompositeClip, &pixbounds);

+	    }

+	    else

+	    {

+		pPicture->freeCompClip = TRUE;

+		pPicture->pCompositeClip = REGION_CREATE(pScreen, &pixbounds, 1);

+	    }

+

+	    if (pPicture->clientClipType == CT_REGION)

+	    {

+		if(pDrawable->x || pDrawable->y) {

+		    REGION_TRANSLATE(pScreen, pPicture->clientClip,

+				     pDrawable->x + pPicture->clipOrigin.x, 

+				     pDrawable->y + pPicture->clipOrigin.y);

+		    REGION_INTERSECT(pScreen, pPicture->pCompositeClip,

+				     pPicture->pCompositeClip, pPicture->clientClip);

+		    REGION_TRANSLATE(pScreen, pPicture->clientClip,

+				     -(pDrawable->x + pPicture->clipOrigin.x), 

+				     -(pDrawable->y + pPicture->clipOrigin.y));

+		} else {

+		    REGION_TRANSLATE(pScreen, pPicture->pCompositeClip,

+				     -pPicture->clipOrigin.x, -pPicture->clipOrigin.y);

+		    REGION_INTERSECT(pScreen, pPicture->pCompositeClip,

+				     pPicture->pCompositeClip, pPicture->clientClip);

+		    REGION_TRANSLATE(pScreen, pPicture->pCompositeClip,

+				     pPicture->clipOrigin.x, pPicture->clipOrigin.y);

+		}

+	    }

+	}	/* end of composite clip for pixmap */

+    }

+}

+

+int

+miChangePictureTransform (PicturePtr	pPicture,

+			  PictTransform *transform)

+{

+    return Success;

+}

+

+int

+miChangePictureFilter (PicturePtr pPicture,

+		       int	  filter,

+		       xFixed     *params,

+		       int	  nparams)

+{

+    return Success;

+}

+

+#define BOUND(v)	(INT16) ((v) < MINSHORT ? MINSHORT : (v) > MAXSHORT ? MAXSHORT : (v))

+

+static inline pixman_bool_t

+miClipPictureReg (pixman_region16_t *	pRegion,

+		  pixman_region16_t *	pClip,

+		  int		dx,

+		  int		dy)

+{

+    if (pixman_region_n_rects(pRegion) == 1 &&

+	pixman_region_n_rects(pClip) == 1)

+    {

+	pixman_box16_t *  pRbox = pixman_region_rectangles(pRegion, NULL);

+	pixman_box16_t *  pCbox = pixman_region_rectangles(pClip, NULL);

+	int	v;

+	

+	if (pRbox->x1 < (v = pCbox->x1 + dx))

+	    pRbox->x1 = BOUND(v);

+	if (pRbox->x2 > (v = pCbox->x2 + dx))

+	    pRbox->x2 = BOUND(v);

+	if (pRbox->y1 < (v = pCbox->y1 + dy))

+	    pRbox->y1 = BOUND(v);

+	if (pRbox->y2 > (v = pCbox->y2 + dy))

+	    pRbox->y2 = BOUND(v);

+	if (pRbox->x1 >= pRbox->x2 ||

+	    pRbox->y1 >= pRbox->y2)

+	{

+	    pixman_region_init (pRegion);

+	}

+    }

+    else if (!pixman_region_not_empty (pClip))

+	return FALSE;

+    else

+    {

+	if (dx || dy)

+	    pixman_region_translate (pRegion, -dx, -dy);

+	if (!pixman_region_intersect (pRegion, pRegion, pClip))

+	    return FALSE;

+	if (dx || dy)

+	    pixman_region_translate(pRegion, dx, dy);

+    }

+    return pixman_region_not_empty(pRegion);

+}

+

+static __inline Bool

+miClipPictureSrc (RegionPtr	pRegion,

+		  PicturePtr	pPicture,

+		  int		dx,

+		  int		dy)

+{

+    if (pPicture->clientClipType != CT_NONE)

+    {

+	Bool result;

+	

+	pixman_region_translate ( pPicture->clientClip,

+				  pPicture->clipOrigin.x + dx,

+				  pPicture->clipOrigin.y + dy);

+

+	result = REGION_INTERSECT (pScreen, pRegion, pRegion, pPicture->clientClip);

+	

+	pixman_region_translate ( pPicture->clientClip,

+				  - (pPicture->clipOrigin.x + dx),

+				  - (pPicture->clipOrigin.y + dy));

+

+	if (!result)

+	    return FALSE;

+    }

+    return TRUE;

+}

+

+void

+miCompositeSourceValidate (PicturePtr	pPicture,

+			   INT16	x,

+			   INT16	y,

+			   CARD16	width,

+			   CARD16	height)

+{

+    DrawablePtr	pDrawable = pPicture->pDrawable;

+    ScreenPtr	pScreen;

+

+    if (!pDrawable)

+        return;

+

+    pScreen = pDrawable->pScreen;

+    

+    if (pScreen->SourceValidate)

+    {

+	if (pPicture->transform)

+	{

+	    xPoint	    points[4];

+	    int		    i;

+	    int		    xmin, ymin, xmax, ymax;

+

+#define VectorSet(i,_x,_y) { points[i].x = _x; points[i].y = _y; }

+	    VectorSet (0, x, y);

+	    VectorSet (1, x + width, y);

+	    VectorSet (2, x, y + height);

+	    VectorSet (3, x + width, y + height);

+	    xmin = ymin = 32767;

+	    xmax = ymax = -32737;

+	    for (i = 0; i < 4; i++)

+	    {

+		PictVector  t;

+		t.vector[0] = IntToxFixed (points[i].x);

+		t.vector[1] = IntToxFixed (points[i].y);

+		t.vector[2] = xFixed1;

+		if (pixman_transform_point (pPicture->transform, &t))

+		{

+		    int	tx = xFixedToInt (t.vector[0]);

+		    int ty = xFixedToInt (t.vector[1]);

+		    if (tx < xmin) xmin = tx;

+		    if (tx > xmax) xmax = tx;

+		    if (ty < ymin) ymin = ty;

+		    if (ty > ymax) ymax = ty;

+		}

+	    }

+	    x = xmin;

+	    y = ymin;

+	    width = xmax - xmin;

+	    height = ymax - ymin;

+	}

+        x += pPicture->pDrawable->x;

+        y += pPicture->pDrawable->y;

+	(*pScreen->SourceValidate) (pDrawable, x, y, width, height);

+    }

+}

+

+/*

+ * returns FALSE if the final region is empty.  Indistinguishable from

+ * an allocation failure, but rendering ignores those anyways.

+ */

+

+Bool

+miComputeCompositeRegion (RegionPtr	pRegion,

+			  PicturePtr	pSrc,

+			  PicturePtr	pMask,

+			  PicturePtr	pDst,

+			  INT16		xSrc,

+			  INT16		ySrc,

+			  INT16		xMask,

+			  INT16		yMask,

+			  INT16		xDst,

+			  INT16		yDst,

+			  CARD16	width,

+			  CARD16	height)

+{

+    

+    int		v;

+

+    pRegion->extents.x1 = xDst;

+    v = xDst + width;

+    pRegion->extents.x2 = BOUND(v);

+    pRegion->extents.y1 = yDst;

+    v = yDst + height;

+    pRegion->extents.y2 = BOUND(v);

+    pRegion->data = 0;

+    /* Check for empty operation */

+    if (pRegion->extents.x1 >= pRegion->extents.x2 ||

+	pRegion->extents.y1 >= pRegion->extents.y2)

+    {

+	pixman_region_init (pRegion);

+	return FALSE;

+    }

+    /* clip against dst */

+    if (!miClipPictureReg (pRegion, pDst->pCompositeClip, 0, 0))

+    {

+	pixman_region_fini (pRegion);

+	return FALSE;

+    }

+    if (pDst->alphaMap)

+    {

+	if (!miClipPictureReg (pRegion, pDst->alphaMap->pCompositeClip,

+			       -pDst->alphaOrigin.x,

+			       -pDst->alphaOrigin.y))

+	{

+	    pixman_region_fini (pRegion);

+	    return FALSE;

+	}

+    }

+    /* clip against src */

+    if (!miClipPictureSrc (pRegion, pSrc, xDst - xSrc, yDst - ySrc))

+    {

+	pixman_region_fini (pRegion);

+	return FALSE;

+    }

+    if (pSrc->alphaMap)

+    {

+	if (!miClipPictureSrc (pRegion, pSrc->alphaMap,

+			       xDst - (xSrc - pSrc->alphaOrigin.x),

+			       yDst - (ySrc - pSrc->alphaOrigin.y)))

+	{

+	    pixman_region_fini (pRegion);

+	    return FALSE;

+	}

+    }

+    /* clip against mask */

+    if (pMask)

+    {

+	if (!miClipPictureSrc (pRegion, pMask, xDst - xMask, yDst - yMask))

+	{

+	    pixman_region_fini (pRegion);

+	    return FALSE;

+	}	

+	if (pMask->alphaMap)

+	{

+	    if (!miClipPictureSrc (pRegion, pMask->alphaMap,

+				   xDst - (xMask - pMask->alphaOrigin.x),

+				   yDst - (yMask - pMask->alphaOrigin.y)))

+	    {

+		pixman_region_fini (pRegion);

+		return FALSE;

+	    }

+	}

+    }

+

+    

+    miCompositeSourceValidate (pSrc, xSrc, ySrc, width, height);

+    if (pMask)

+	miCompositeSourceValidate (pMask, xMask, yMask, width, height);

+

+    return TRUE;

+}

+

+void

+miRenderColorToPixel (PictFormatPtr format,

+		      xRenderColor  *color,

+		      CARD32	    *pixel)

+{

+    CARD32	    r, g, b, a;

+    miIndexedPtr    pIndexed;

+

+    switch (format->type) {

+    case PictTypeDirect:

+	r = color->red >> (16 - Ones (format->direct.redMask));

+	g = color->green >> (16 - Ones (format->direct.greenMask));

+	b = color->blue >> (16 - Ones (format->direct.blueMask));

+	a = color->alpha >> (16 - Ones (format->direct.alphaMask));

+	r = r << format->direct.red;

+	g = g << format->direct.green;

+	b = b << format->direct.blue;

+	a = a << format->direct.alpha;

+	*pixel = r|g|b|a;

+	break;

+    case PictTypeIndexed:

+	pIndexed = (miIndexedPtr) (format->index.devPrivate);

+	if (pIndexed->color)

+	{

+	    r = color->red >> 11;

+	    g = color->green >> 11;

+	    b = color->blue >> 11;

+	    *pixel = miIndexToEnt15 (pIndexed, (r << 10) | (g << 5) | b);

+	}

+	else

+	{

+	    r = color->red >> 8;

+	    g = color->green >> 8;

+	    b = color->blue >> 8;

+	    *pixel = miIndexToEntY24 (pIndexed, (r << 16) | (g << 8) | b);

+	}

+	break;

+    }

+}

+

+static CARD16

+miFillColor (CARD32 pixel, int bits)

+{

+    while (bits < 16)

+    {

+	pixel |= pixel << bits;

+	bits <<= 1;

+    }

+    return (CARD16) pixel;

+}

+

+Bool

+miIsSolidAlpha (PicturePtr pSrc)

+{

+    ScreenPtr	pScreen;

+    char	line[1];

+

+    if (!pSrc->pDrawable)

+        return FALSE;

+

+    pScreen = pSrc->pDrawable->pScreen;

+    

+    /* Alpha-only */

+    if (PICT_FORMAT_TYPE (pSrc->format) != PICT_TYPE_A)

+	return FALSE;

+    /* repeat */

+    if (!pSrc->repeat)

+	return FALSE;

+    /* 1x1 */

+    if (pSrc->pDrawable->width != 1 || pSrc->pDrawable->height != 1)

+	return FALSE;

+    line[0] = 1;

+    (*pScreen->GetImage) (pSrc->pDrawable, 0, 0, 1, 1, ZPixmap, ~0L, line);

+    switch (pSrc->pDrawable->bitsPerPixel) {

+    case 1:

+	return (CARD8) line[0] == 1 || (CARD8) line[0] == 0x80;

+    case 4:

+	return (CARD8) line[0] == 0xf || (CARD8) line[0] == 0xf0;

+    case 8:

+	return (CARD8) line[0] == 0xff;

+    default:

+	return FALSE;

+    }

+}

+

+void

+miRenderPixelToColor (PictFormatPtr format,

+		      CARD32	    pixel,

+		      xRenderColor  *color)

+{

+    CARD32	    r, g, b, a;

+    miIndexedPtr    pIndexed;

+    

+    switch (format->type) {

+    case PictTypeDirect:

+	r = (pixel >> format->direct.red) & format->direct.redMask;

+	g = (pixel >> format->direct.green) & format->direct.greenMask;

+	b = (pixel >> format->direct.blue) & format->direct.blueMask;

+	a = (pixel >> format->direct.alpha) & format->direct.alphaMask;

+	color->red = miFillColor (r, Ones (format->direct.redMask));

+	color->green = miFillColor (g, Ones (format->direct.greenMask));

+	color->blue = miFillColor (b, Ones (format->direct.blueMask));

+	color->alpha = miFillColor (a, Ones (format->direct.alphaMask));

+	break;

+    case PictTypeIndexed:

+	pIndexed = (miIndexedPtr) (format->index.devPrivate);

+	pixel = pIndexed->rgba[pixel & (MI_MAX_INDEXED-1)];

+	r = (pixel >> 16) & 0xff;

+	g = (pixel >>  8) & 0xff;

+	b = (pixel      ) & 0xff;

+	color->red = miFillColor (r, 8);

+	color->green = miFillColor (g, 8);

+	color->blue = miFillColor (b, 8);

+	color->alpha = 0xffff;

+	break;

+    }

+}

+

+Bool

+miPictureInit (ScreenPtr pScreen, PictFormatPtr formats, int nformats)

+{

+    PictureScreenPtr    ps;

+    

+    if (!PictureInit (pScreen, formats, nformats))

+	return FALSE;

+    ps = GetPictureScreen(pScreen);

+    ps->CreatePicture = miCreatePicture;

+    ps->DestroyPicture = miDestroyPicture;

+    ps->ChangePictureClip = miChangePictureClip;

+    ps->DestroyPictureClip = miDestroyPictureClip;

+    ps->ChangePicture = miChangePicture;

+    ps->ValidatePicture = miValidatePicture;

+    ps->InitIndexed = miInitIndexed;

+    ps->CloseIndexed = miCloseIndexed;

+    ps->UpdateIndexed = miUpdateIndexed;

+    ps->ChangePictureTransform = miChangePictureTransform;

+    ps->ChangePictureFilter = miChangePictureFilter;

+    ps->RealizeGlyph = miRealizeGlyph;

+    ps->UnrealizeGlyph = miUnrealizeGlyph;

+

+    /* MI rendering routines */

+    ps->Composite	= 0;			/* requires DDX support */

+    ps->Glyphs		= miGlyphs;

+    ps->CompositeRects	= miCompositeRects;

+    ps->Trapezoids	= miTrapezoids;

+    ps->Triangles	= miTriangles;

+    ps->TriStrip	= miTriStrip;

+    ps->TriFan		= miTriFan;

+    

+    ps->RasterizeTrapezoid = 0;			/* requires DDX support */

+    ps->AddTraps	= 0;			/* requires DDX support */

+    ps->AddTriangles	= 0;			/* requires DDX support */

+

+    return TRUE;

+}