C++ PictureScreenPtr类代码示例

static void
RootlessComposite(CARD8 op, PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst,
                  INT16 xSrc, INT16 ySrc, INT16  xMask, INT16  yMask,
                  INT16 xDst, INT16 yDst, CARD16 width, CARD16 height)
{
    ScreenPtr pScreen = pDst->pDrawable->pScreen;
    PictureScreenPtr ps = GetPictureScreen(pScreen);
    WindowPtr dstWin;

    dstWin  = (pDst->pDrawable->type  == DRAWABLE_WINDOW) ?
        (WindowPtr)pDst->pDrawable  :  NULL;

    // SCREEN_UNWRAP(ps, Composite);
    ps->Composite = SCREENREC(pScreen)->Composite;

    ps->Composite(op, pSrc, pMask, pDst,
                  xSrc, ySrc, xMask, yMask,
                  xDst, yDst, width, height);

    if (dstWin  && IsFramedWindow(dstWin)) {
        RootlessDamageRect(dstWin, xDst, yDst, width, height);
    }

    ps->Composite = RootlessComposite;
    // SCREEN_WRAP(ps, Composite);
}

/** Fill a rectangle on the appropriate screen by combining the color
 *  with the dest picture in the area specified by the list of
 *  rectangles.  For a complete description see the protocol document of
 *  the RENDER library. */
void
dmxCompositeRects(CARD8 op,
                  PicturePtr pDst,
                  xRenderColor * color, int nRect, xRectangle *rects)
{
    ScreenPtr pScreen = pDst->pDrawable->pScreen;
    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
    PictureScreenPtr ps = GetPictureScreen(pScreen);
    dmxPictPrivPtr pPictPriv = DMX_GET_PICT_PRIV(pDst);

    DMX_UNWRAP(CompositeRects, dmxScreen, ps);
#if 0
    if (ps->CompositeRects)
        ps->CompositeRects(op, pDst, color, nRect, rects);
#endif

    /* CompositeRects on back-end server */
    if (pPictPriv->pict) {
        XRenderFillRectangles(dmxScreen->beDisplay,
                              op,
                              pPictPriv->pict,
                              (XRenderColor *) color,
                              (XRectangle *) rects, nRect);
        dmxSync(dmxScreen, FALSE);
    }

    DMX_WRAP(CompositeRects, dmxCompositeRects, dmxScreen, ps);
}

void
rdpGlyphs(CARD8 op, PicturePtr pSrc, PicturePtr pDst,
          PictFormatPtr maskFormat,
          INT16 xSrc, INT16 ySrc, int nlists, GlyphListPtr lists,
          GlyphPtr* glyphs)
{
  PictureScreenPtr ps;
  int index;

  LLOGLN(10, ("rdpGlyphs:"));
  LLOGLN(10, ("rdpGlyphs: nlists %d len %d", nlists, lists->len));
  rdpup_set_hints(1, 1);
  for (index = 0; index < lists->len; index++)
  {
    LLOGLN(10, ("  index %d size %d refcnt %d width %d height %d",
           index, (int)(glyphs[index]->size), (int)(glyphs[index]->refcnt),
           glyphs[index]->info.width, glyphs[index]->info.height));
  }
  ps = GetPictureScreen(g_pScreen);
  ps->Glyphs = g_rdpScreen.Glyphs;
  ps->Glyphs(op, pSrc, pDst, maskFormat, xSrc, ySrc,
             nlists, lists, glyphs);
  ps->Glyphs = rdpGlyphs;
  rdpup_set_hints(0, 1);
  LLOGLN(10, ("rdpGlyphs: out"));
}

/** Destroy the picture's list of clip rectangles. */
void
dmxDestroyPictureClip(PicturePtr pPicture)
{
    ScreenPtr pScreen = pPicture->pDrawable->pScreen;
    DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
    PictureScreenPtr ps = GetPictureScreen(pScreen);
    dmxPictPrivPtr pPictPriv = DMX_GET_PICT_PRIV(pPicture);

    DMX_UNWRAP(DestroyPictureClip, dmxScreen, ps);
#if 1
    if (ps->DestroyPictureClip)
        ps->DestroyPictureClip(pPicture);
#endif

    /* Destroy picture clip rects on back-end server */
    if (pPictPriv->pict) {
        XRenderSetPictureClipRectangles(dmxScreen->beDisplay,
                                        pPictPriv->pict, 0, 0, NULL, 0);
        dmxSync(dmxScreen, FALSE);
    }
    else {
        /* FIXME: Handle destroying clip region when offscreen */
    }

    DMX_WRAP(DestroyPictureClip, dmxDestroyPictureClip, dmxScreen, ps);
}

/** Change the picture's list of clip rectangles. */
int dmxChangePictureClip(PicturePtr pPicture, int clipType,
			 pointer value, int n)
{
    ScreenPtr         pScreen   = pPicture->pDrawable->pScreen;
    DMXScreenInfo    *dmxScreen = &dmxScreens[pScreen->myNum];
    PictureScreenPtr  ps        = GetPictureScreen(pScreen);
    dmxPictPrivPtr    pPictPriv = DMX_GET_PICT_PRIV(pPicture);

    DMX_UNWRAP(ChangePictureClip, dmxScreen, ps);
#if 1
    if (ps->ChangePictureClip)
	ps->ChangePictureClip(pPicture, clipType, value, n);
#endif

    /* Change picture clip rects on back-end server */
    if (pPictPriv->pict) {
	/* The clip has already been changed into a region by the mi
	 * routine called above.
	 */
	if (pPicture->clientClip) {
	    RegionPtr   pClip = pPicture->clientClip;
	    BoxPtr      pBox  = REGION_RECTS(pClip);
	    int         nBox  = REGION_NUM_RECTS(pClip);
	    XRectangle *pRects;
	    XRectangle *pRect;
	    int         nRects;

	    nRects = nBox;
	    pRects = pRect = xalloc(nRects * sizeof(*pRect));

	    while (nBox--) {
		pRect->x      = pBox->x1;
		pRect->y      = pBox->y1;
		pRect->width  = pBox->x2 - pBox->x1;
		pRect->height = pBox->y2 - pBox->y1;
		pBox++;
		pRect++;
	    }

	    XRenderSetPictureClipRectangles(dmxScreen->beDisplay,
					    pPictPriv->pict,
					    0, 0,
					    pRects,
					    nRects);
	    xfree(pRects);
	} else {
	    XRenderSetPictureClipRectangles(dmxScreen->beDisplay,
					    pPictPriv->pict,
					    0, 0, NULL, 0);
	}
	dmxSync(dmxScreen, FALSE);
    } else {
	/* FIXME: Handle saving clip region when offscreen */
    }

    DMX_WRAP(ChangePictureClip, dmxChangePictureClip, dmxScreen, ps);
    
    return Success;
}

/** Change the attributes of the pictures.  If the picture has not yet
 *  been created due to lazy window creation, save the mask so that it
 *  can be used to appropriately initialize the picture's attributes
 *  when it is created later. */
void dmxChangePicture(PicturePtr pPicture, Mask mask)
{
    ScreenPtr         pScreen   = pPicture->pDrawable->pScreen;
    DMXScreenInfo    *dmxScreen = &dmxScreens[pScreen->myNum];
    PictureScreenPtr  ps        = GetPictureScreen(pScreen);
    dmxPictPrivPtr    pPictPriv = DMX_GET_PICT_PRIV(pPicture);

    DMX_UNWRAP(ChangePicture, dmxScreen, ps);
#if 1
    if (ps->ChangePicture)
	ps->ChangePicture(pPicture, mask);
#endif

    /* Picture attribute changes are handled in ValidatePicture */
    pPictPriv->savedMask |= mask;

    DMX_WRAP(ChangePicture, dmxChangePicture, dmxScreen, ps);
}

void
ExaCheckAddTraps(PicturePtr pPicture,
                 INT16 x_off, INT16 y_off, int ntrap, xTrap * traps)
{
    ScreenPtr pScreen = pPicture->pDrawable->pScreen;
    PictureScreenPtr ps = GetPictureScreen(pScreen);

    EXA_PRE_FALLBACK(pScreen);

    EXA_FALLBACK(("to pict %p (%c)\n",
                  exaDrawableLocation(pPicture->pDrawable)));
    exaPrepareAccess(pPicture->pDrawable, EXA_PREPARE_DEST);
    swap(pExaScr, ps, AddTraps);
    ps->AddTraps(pPicture, x_off, y_off, ntrap, traps);
    swap(pExaScr, ps, AddTraps);
    exaFinishAccess(pPicture->pDrawable, EXA_PREPARE_DEST);
    EXA_POST_FALLBACK(pScreen);
}

/** Destroy a picture.  This function calls the wrapped function that
 *  frees the resources in the DMX server associated with this
 *  picture. */
void dmxDestroyPicture(PicturePtr pPicture)
{
    ScreenPtr         pScreen   = pPicture->pDrawable->pScreen;
    DMXScreenInfo    *dmxScreen = &dmxScreens[pScreen->myNum];
    PictureScreenPtr  ps        = GetPictureScreen(pScreen);

    DMX_UNWRAP(DestroyPicture, dmxScreen, ps);

    /* Destroy picture on back-end server */
    if (dmxBEFreePicture(pPicture))
	dmxSync(dmxScreen, FALSE);

#if 1
    if (ps->DestroyPicture)
	ps->DestroyPicture(pPicture);
#endif
    DMX_WRAP(DestroyPicture, dmxDestroyPicture, dmxScreen, ps);
}

/** Composite a picture on the appropriate screen by combining the
 *  specified rectangle of the transformed src and mask operands with
 *  the specified rectangle of the dst using op as the compositing
 *  operator.  For a complete description see the protocol document of
 *  the RENDER library. */
void dmxComposite(CARD8 op,
		  PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst,
		  INT16 xSrc, INT16 ySrc,
		  INT16 xMask, INT16 yMask,
		  INT16 xDst, INT16 yDst,
		  CARD16 width, CARD16 height)
{
    ScreenPtr         pScreen   = pDst->pDrawable->pScreen;
    DMXScreenInfo    *dmxScreen = &dmxScreens[pScreen->myNum];
    PictureScreenPtr  ps        = GetPictureScreen(pScreen);
    dmxPictPrivPtr    pSrcPriv  = DMX_GET_PICT_PRIV(pSrc);
    dmxPictPrivPtr    pMaskPriv = NULL;
    dmxPictPrivPtr    pDstPriv  = DMX_GET_PICT_PRIV(pDst);

    if (pMask) pMaskPriv = DMX_GET_PICT_PRIV(pMask);

    DMX_UNWRAP(Composite, dmxScreen, ps);
#if 0
    if (ps->Composite)
	ps->Composite(op, pSrc, pMask, pDst,
		      xSrc, ySrc, xMask, yMask, xDst, yDst,
		      width, height);
#endif

    /* Composite on back-end server */
    if (pSrcPriv->pict && pDstPriv->pict &&
	((pMaskPriv && pMaskPriv->pict) || !pMaskPriv)) {
	XRenderComposite(dmxScreen->beDisplay,
			 op,
			 pSrcPriv->pict,
			 pMaskPriv ? pMaskPriv->pict : None,
			 pDstPriv->pict,
			 xSrc, ySrc,
			 xMask, yMask,
			 xDst, yDst,
			 width, height);
	dmxSync(dmxScreen, FALSE);
    }


    DMX_WRAP(Composite, dmxComposite, dmxScreen, ps);
}

static void
rdpCompositeOrg(PictureScreenPtr ps, rdpPtr dev,
                CARD8 op, PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst,
                INT16 xSrc, INT16 ySrc, INT16 xMask, INT16 yMask,
                INT16 xDst, INT16 yDst, CARD16 width, CARD16 height)
{
    ps->Composite = dev->Composite;
    ps->Composite(op, pSrc, pMask, pDst, xSrc, ySrc, xMask, yMask,
                  xDst, yDst, width, height);
    ps->Composite = rdpComposite;
}

static void
rdpGlyphsOrg(PictureScreenPtr ps, rdpPtr dev,
             CARD8 op, PicturePtr pSrc, PicturePtr pDst,
             PictFormatPtr maskFormat,
             INT16 xSrc, INT16 ySrc, int nlists, GlyphListPtr lists,
             GlyphPtr *glyphs)
{
    ps->Glyphs = dev->Glyphs;
    ps->Glyphs(op, pSrc, pDst, maskFormat, xSrc, ySrc,
               nlists, lists, glyphs);
    ps->Glyphs = rdpGlyphs;
}

static void
RootlessGlyphs(CARD8 op, PicturePtr pSrc, PicturePtr pDst,
               PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc,
               int nlist, GlyphListPtr list, GlyphPtr *glyphs)
{
    ScreenPtr pScreen = pDst->pDrawable->pScreen;
    PictureScreenPtr ps = GetPictureScreen(pScreen);
    int x, y;
    int n;
    GlyphPtr glyph;
    WindowPtr dstWin;

    dstWin = (pDst->pDrawable->type == DRAWABLE_WINDOW) ?
        (WindowPtr)pDst->pDrawable  :  NULL;

    //SCREEN_UNWRAP(ps, Glyphs);
    ps->Glyphs = SCREENREC(pScreen)->Glyphs;
    ps->Glyphs(op, pSrc, pDst, maskFormat, xSrc, ySrc, nlist, list, glyphs);
    ps->Glyphs = RootlessGlyphs;
    //SCREEN_WRAP(ps, Glyphs);

    if (dstWin && IsFramedWindow(dstWin)) {
        x = xSrc;
        y = ySrc;
        while (nlist--) {
            x += list->xOff;
            y += list->yOff;
            n = list->len;
            while (n--) {
                glyph = *glyphs++;
                RootlessDamageRect(dstWin,
                                   x - glyph->info.x, y - glyph->info.y,
                                   glyph->info.width, glyph->info.height);
                x += glyph->info.xOff;
                y += glyph->info.yOff;
            }
            list++;
        }
    }
}

/** Composite a triangle fan on the appropriate screen.  For a complete
 *  description see the protocol document of the RENDER library. */
void dmxTriFan(CARD8 op, PicturePtr pSrc, PicturePtr pDst,
	       PictFormatPtr maskFormat,
	       INT16 xSrc, INT16 ySrc,
	       int npoint, xPointFixed *points)
{
    ScreenPtr         pScreen   = pDst->pDrawable->pScreen;
    DMXScreenInfo    *dmxScreen = &dmxScreens[pScreen->myNum];
    PictureScreenPtr  ps        = GetPictureScreen(pScreen);
    dmxPictPrivPtr    pSrcPriv  = DMX_GET_PICT_PRIV(pSrc);
    dmxPictPrivPtr    pDstPriv  = DMX_GET_PICT_PRIV(pDst);

    DMX_UNWRAP(TriFan, dmxScreen, ps);
#if 0
    if (ps->TriFan)
	ps->TriFan(op, pSrc, pDst, maskFormat, xSrc, ySrc, npoint, *points);
#endif

    /* Draw trapezoids on back-end server */
    if (pDstPriv->pict) {
	XRenderPictFormat *pFormat;

	pFormat = dmxFindFormat(dmxScreen, maskFormat);
	if (!pFormat) {
	    /* FIXME: Error! */
	}

	XRenderCompositeTriFan(dmxScreen->beDisplay,
			       op,
			       pSrcPriv->pict,
			       pDstPriv->pict,
			       pFormat,
			       xSrc, ySrc,
			       (XPointFixed *)points,
			       npoint);
	dmxSync(dmxScreen, FALSE);
    }

    DMX_WRAP(TriFan, dmxTriFan, dmxScreen, ps);
}

/** Create a picture.  This function handles the CreatePicture
 *  unwrapping/wrapping and calls dmxDoCreatePicture to actually create
 *  the picture on the appropriate screen.  */
int dmxCreatePicture(PicturePtr pPicture)
{
    ScreenPtr         pScreen   = pPicture->pDrawable->pScreen;
    DMXScreenInfo    *dmxScreen = &dmxScreens[pScreen->myNum];
    PictureScreenPtr  ps        = GetPictureScreen(pScreen);
    dmxPictPrivPtr    pPictPriv = DMX_GET_PICT_PRIV(pPicture);
    int               ret       = Success;

    DMX_UNWRAP(CreatePicture, dmxScreen, ps);
#if 1
    if (ps->CreatePicture)
	ret = ps->CreatePicture(pPicture);
#endif

    /* Create picture on back-end server */
    pPictPriv->pict      = dmxDoCreatePicture(pPicture);
    pPictPriv->savedMask = 0;

    DMX_WRAP(CreatePicture, dmxCreatePicture, dmxScreen, ps);

    return ret;
}

/* it looks like all the antialias draws go through here */
void
rdpComposite(CARD8 op, PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst,
             INT16 xSrc, INT16 ySrc, INT16 xMask, INT16 yMask, INT16 xDst,
             INT16 yDst, CARD16 width, CARD16 height)
{
  BoxRec box;
  PictureScreenPtr ps;
  RegionRec reg1;
  RegionRec reg2;
  DrawablePtr p;
  int j;
  int num_clips;
  int got_id;
  WindowPtr pDstWnd;
  PixmapPtr pDstPixmap;
  rdpPixmapRec* pDstPriv;
  struct image_data id;

  LLOGLN(10, ("rdpComposite:"));
  ps = GetPictureScreen(g_pScreen);
  ps->Composite = g_rdpScreen.Composite;
  ps->Composite(op, pSrc, pMask, pDst, xSrc, ySrc,
                xMask, yMask, xDst, yDst, width, height);
  ps->Composite = rdpComposite;

  p = pDst->pDrawable;

  got_id = 0;
  if (p->type == DRAWABLE_PIXMAP)
  {
    pDstPixmap = (PixmapPtr)p;
    pDstPriv = GETPIXPRIV(pDstPixmap);
    if (XRDP_IS_OS(pDstPriv))
    {
      rdpup_switch_os_surface(pDstPriv->rdpindex);
      rdpup_get_pixmap_image_rect(pDstPixmap, &id);
      got_id = 1;
    }
  }
  else
  {
    if (p->type == DRAWABLE_WINDOW)
    {
      pDstWnd = (WindowPtr)p;
      if (pDstWnd->viewable)
      {
        rdpup_get_screen_image_rect(&id);
        got_id = 1;
      }
    }
  }
  if (!got_id)
  {
    return;
  }

  if (pDst->clientClipType == CT_REGION)
  {
    box.x1 = p->x + xDst;
    box.y1 = p->y + yDst;
    box.x2 = box.x1 + width;
    box.y2 = box.y1 + height;
    RegionInit(&reg1, &box, 0);
    RegionInit(&reg2, NullBox, 0);
    RegionCopy(&reg2, pDst->clientClip);
    RegionTranslate(&reg2, p->x + pDst->clipOrigin.x,
                      p->y + pDst->clipOrigin.y);
    RegionIntersect(&reg1, &reg1, &reg2);
    num_clips = REGION_NUM_RECTS(&reg1);
    if (num_clips > 0)
    {
      rdpup_begin_update();
      for (j = num_clips - 1; j >= 0; j--)
      {
        box = REGION_RECTS(&reg1)[j];
        rdpup_send_area(&id, box.x1, box.y1, box.x2 - box.x1, box.y2 - box.y1);
      }
      rdpup_end_update();
    }
    RegionUninit(&reg1);
    RegionUninit(&reg2);
  }
  else
  {
    box.x1 = p->x + xDst;
    box.y1 = p->y + yDst;
    box.x2 = box.x1 + width;
    box.y2 = box.y1 + height;
    rdpup_begin_update();
    rdpup_send_area(&id, box.x1, box.y1, box.x2 - box.x1, box.y2 - box.y1);
    rdpup_end_update();
  }
  rdpup_switch_os_surface(-1);
}