int
draw_item_add_line_region(rdpPixmapRec *priv, RegionPtr reg, int color,
int opcode, int width, xSegment *segs, int nseg,
int is_segment)
{
struct rdp_draw_item *di;
LLOGLN(10, ("draw_item_add_line_region:"));
di = (struct rdp_draw_item *)g_malloc(sizeof(struct rdp_draw_item), 1);
di->type = RDI_LINE;
di->u.line.fg_color = color;
di->u.line.opcode = opcode;
di->u.line.width = width;
di->u.line.segs = (xSegment *)g_malloc(sizeof(xSegment) * nseg, 1);
memcpy(di->u.line.segs, segs, sizeof(xSegment) * nseg);
di->u.line.nseg = nseg;
if (is_segment)
{
di->u.line.flags = 1;
}
di->reg = RegionCreate(NullBox, 0);
di->flags |= 1;
RegionCopy(di->reg, reg);
draw_item_add(priv, di);
return 0;
}
RegionPtr
CreateClipShape(WindowPtr pWin)
{
BoxRec extents;
extents.x1 = 0;
extents.y1 = 0;
extents.x2 = pWin->drawable.width;
extents.y2 = pWin->drawable.height;
return RegionCreate(&extents, 1);
}
void
miCopyClip(GCPtr pgcDst, GCPtr pgcSrc)
{
if (pgcSrc->clientClip) {
RegionPtr prgnNew = RegionCreate(NULL, 1);
RegionCopy(prgnNew, (RegionPtr) (pgcSrc->clientClip));
(*pgcDst->funcs->ChangeClip) (pgcDst, CT_REGION, prgnNew, 0);
} else {
(*pgcDst->funcs->ChangeClip) (pgcDst, CT_NONE, NULL, 0);
}
}
RegionPtr
CreateBoundingShape(WindowPtr pWin)
{
BoxRec extents;
extents.x1 = -wBorderWidth(pWin);
extents.y1 = -wBorderWidth(pWin);
extents.x2 = pWin->drawable.width + wBorderWidth(pWin);
extents.y2 = pWin->drawable.height + wBorderWidth(pWin);
return RegionCreate(&extents, 1);
}
Bool
xf86InitFBManagerRegion(ScreenPtr pScreen, RegionPtr FullRegion)
{
FBManagerPtr offman;
if (RegionNil(FullRegion))
return FALSE;
if (!dixRegisterPrivateKey(&xf86FBScreenKeyRec, PRIVATE_SCREEN, 0))
return FALSE;
if (!xf86RegisterOffscreenManager(pScreen, &xf86FBManFuncs))
return FALSE;
offman = malloc(sizeof(FBManager));
if (!offman)
return FALSE;
dixSetPrivate(&pScreen->devPrivates, xf86FBScreenKey, offman);
offman->CloseScreen = pScreen->CloseScreen;
pScreen->CloseScreen = xf86FBCloseScreen;
offman->InitialBoxes = RegionCreate(NULL, 1);
offman->FreeBoxes = RegionCreate(NULL, 1);
RegionCopy(offman->InitialBoxes, FullRegion);
RegionCopy(offman->FreeBoxes, FullRegion);
offman->pScreen = pScreen;
offman->UsedAreas = NULL;
offman->LinearAreas = NULL;
offman->NumUsedAreas = 0;
offman->NumCallbacks = 0;
offman->FreeBoxesUpdateCallback = NULL;
offman->devPrivates = NULL;
return TRUE;
}
void
miSetShape(WindowPtr pWin, int kind)
{
Bool WasViewable = (Bool) (pWin->viewable);
ScreenPtr pScreen = pWin->drawable.pScreen;
Bool anyMarked = FALSE;
WindowPtr pLayerWin;
if (kind != ShapeInput) {
if (WasViewable) {
anyMarked = (*pScreen->MarkOverlappedWindows) (pWin, pWin,
&pLayerWin);
if (pWin->valdata) {
if (HasBorder(pWin)) {
RegionPtr borderVisible;
borderVisible = RegionCreate(NullBox, 1);
RegionSubtract(borderVisible,
&pWin->borderClip, &pWin->winSize);
pWin->valdata->before.borderVisible = borderVisible;
}
pWin->valdata->before.resized = TRUE;
}
}
SetWinSize(pWin);
SetBorderSize(pWin);
ResizeChildrenWinSize(pWin, 0, 0, 0, 0);
if (WasViewable) {
anyMarked |= (*pScreen->MarkOverlappedWindows) (pWin, pWin, NULL);
if (anyMarked)
(*pScreen->ValidateTree) (pLayerWin->parent, NullWindow,
VTOther);
}
if (WasViewable) {
if (anyMarked)
(*pScreen->HandleExposures) (pLayerWin->parent);
if (anyMarked && pScreen->PostValidateTree)
(*pScreen->PostValidateTree) (pLayerWin->parent, NullWindow,
VTOther);
}
}
if (pWin->realized)
WindowsRestructured();
CheckCursorConfinement(pWin);
}
int
draw_item_add_img_region(rdpPixmapRec *priv, RegionPtr reg, int opcode,
int type)
{
struct rdp_draw_item *di;
di = (struct rdp_draw_item *)g_malloc(sizeof(struct rdp_draw_item), 1);
di->type = type;
di->reg = RegionCreate(NullBox, 0);
RegionCopy(di->reg, reg);
di->u.img.opcode = opcode;
draw_item_add(priv, di);
return 0;
}
RegionPtr
XFixesRegionCopy(RegionPtr pRegion)
{
RegionPtr pNew = RegionCreate(RegionExtents(pRegion),
RegionNumRects(pRegion));
if (!pNew)
return 0;
if (!RegionCopy(pNew, pRegion)) {
RegionDestroy(pNew);
return 0;
}
return pNew;
}
void
miChangeBorderWidth(WindowPtr pWin, unsigned int width)
{
int oldwidth;
Bool anyMarked = FALSE;
ScreenPtr pScreen;
Bool WasViewable = (Bool) (pWin->viewable);
Bool HadBorder;
WindowPtr pLayerWin;
oldwidth = wBorderWidth(pWin);
if (oldwidth == width)
return;
HadBorder = HasBorder(pWin);
pScreen = pWin->drawable.pScreen;
if (WasViewable && width < oldwidth)
anyMarked = (*pScreen->MarkOverlappedWindows) (pWin, pWin, &pLayerWin);
pWin->borderWidth = width;
SetBorderSize(pWin);
if (WasViewable) {
if (width > oldwidth) {
anyMarked = (*pScreen->MarkOverlappedWindows) (pWin, pWin,
&pLayerWin);
/*
* save the old border visible region to correctly compute
* borderExposed.
*/
if (pWin->valdata && HadBorder) {
RegionPtr borderVisible;
borderVisible = RegionCreate(NULL, 1);
RegionSubtract(borderVisible,
&pWin->borderClip, &pWin->winSize);
pWin->valdata->before.borderVisible = borderVisible;
}
}
if (anyMarked) {
(*pScreen->ValidateTree) (pLayerWin->parent, pLayerWin, VTOther);
(*pScreen->HandleExposures) (pLayerWin->parent);
}
if (anyMarked && pScreen->PostValidateTree)
(*pScreen->PostValidateTree) (pLayerWin->parent, pLayerWin,
VTOther);
}
if (pWin->realized)
WindowsRestructured();
}
int
draw_item_add_fill_region(rdpPixmapRec *priv, RegionPtr reg, int color,
int opcode)
{
struct rdp_draw_item *di;
di = (struct rdp_draw_item *)g_malloc(sizeof(struct rdp_draw_item), 1);
di->type = RDI_FILL;
di->u.fill.fg_color = color;
di->u.fill.opcode = opcode;
di->reg = RegionCreate(NullBox, 0);
RegionCopy(di->reg, reg);
draw_item_add(priv, di);
return 0;
}
void sgx_exa_copy_region(DrawablePtr draw, RegionPtr reg, DrawablePtr src_draw,
DrawablePtr dst_draw)
{
ScreenPtr screen = dst_draw->pScreen;
RegionPtr copy_clip = RegionCreate(NULL, 0);
GCPtr gc;
gc = GetScratchGC(dst_draw->depth, screen);
RegionCopy(copy_clip, reg);
(*gc->funcs->ChangeClip)(gc, CT_REGION, copy_clip, 0);
ValidateGC(dst_draw, gc);
(*gc->ops->CopyArea)(src_draw, dst_draw, gc, 0, 0, draw->width,
draw->height, 0, 0);
FreeScratchGC(gc);
}
void
xnestCopyClip(GCPtr pGCDst, GCPtr pGCSrc)
{
RegionPtr pRgn;
switch (pGCSrc->clientClipType)
{
default:
case CT_NONE:
xnestDestroyClip(pGCDst);
break;
case CT_REGION:
pRgn = RegionCreate(NULL, 1);
RegionCopy(pRgn, pGCSrc->clientClip);
xnestChangeClip(pGCDst, CT_REGION, pRgn, 0);
break;
}
}
int
draw_item_add_srcblt_region(rdpPixmapRec *priv, RegionPtr reg,
int srcx, int srcy, int dstx, int dsty,
int cx, int cy)
{
struct rdp_draw_item *di;
LLOGLN(10, ("draw_item_add_srcblt_region:"));
di = (struct rdp_draw_item *)g_malloc(sizeof(struct rdp_draw_item), 1);
di->type = RDI_SCRBLT;
di->u.scrblt.srcx = srcx;
di->u.scrblt.srcy = srcy;
di->u.scrblt.dstx = dstx;
di->u.scrblt.dsty = dsty;
di->u.scrblt.cx = cx;
di->u.scrblt.cy = cy;
di->reg = RegionCreate(NullBox, 0);
RegionCopy(di->reg, reg);
draw_item_add(priv, di);
return 0;
}
Bool
exaHWCopyNtoN(DrawablePtr pSrcDrawable,
DrawablePtr pDstDrawable,
GCPtr pGC,
BoxPtr pbox,
int nbox, int dx, int dy, Bool reverse, Bool upsidedown)
{
ExaScreenPriv(pDstDrawable->pScreen);
PixmapPtr pSrcPixmap, pDstPixmap;
ExaPixmapPrivPtr pSrcExaPixmap, pDstExaPixmap;
int src_off_x, src_off_y;
int dst_off_x, dst_off_y;
RegionPtr srcregion = NULL, dstregion = NULL;
xRectangle *rects;
Bool ret = TRUE;
/* avoid doing copy operations if no boxes */
if (nbox == 0)
return TRUE;
pSrcPixmap = exaGetDrawablePixmap(pSrcDrawable);
pDstPixmap = exaGetDrawablePixmap(pDstDrawable);
exaGetDrawableDeltas(pSrcDrawable, pSrcPixmap, &src_off_x, &src_off_y);
exaGetDrawableDeltas(pDstDrawable, pDstPixmap, &dst_off_x, &dst_off_y);
rects = malloc(nbox * sizeof(xRectangle));
if (rects) {
int i;
int ordering;
for (i = 0; i < nbox; i++) {
rects[i].x = pbox[i].x1 + dx + src_off_x;
rects[i].y = pbox[i].y1 + dy + src_off_y;
rects[i].width = pbox[i].x2 - pbox[i].x1;
rects[i].height = pbox[i].y2 - pbox[i].y1;
}
/* This must match the RegionCopy() logic for reversing rect order */
if (nbox == 1 || (dx > 0 && dy > 0) ||
(pDstDrawable != pSrcDrawable &&
(pDstDrawable->type != DRAWABLE_WINDOW ||
pSrcDrawable->type != DRAWABLE_WINDOW)))
ordering = CT_YXBANDED;
else
ordering = CT_UNSORTED;
srcregion = RegionFromRects(nbox, rects, ordering);
free(rects);
if (!pGC || !exaGCReadsDestination(pDstDrawable, pGC->planemask,
pGC->fillStyle, pGC->alu,
pGC->clientClip != NULL)) {
dstregion = RegionCreate(NullBox, 0);
RegionCopy(dstregion, srcregion);
RegionTranslate(dstregion, dst_off_x - dx - src_off_x,
dst_off_y - dy - src_off_y);
}
}
pSrcExaPixmap = ExaGetPixmapPriv(pSrcPixmap);
pDstExaPixmap = ExaGetPixmapPriv(pDstPixmap);
/* Check whether the accelerator can use this pixmap.
* If the pitch of the pixmaps is out of range, there's nothing
* we can do but fall back to software rendering.
*/
if (pSrcExaPixmap->accel_blocked & EXA_RANGE_PITCH ||
pDstExaPixmap->accel_blocked & EXA_RANGE_PITCH)
goto fallback;
/* If the width or the height of either of the pixmaps
* is out of range, check whether the boxes are actually out of the
* addressable range as well. If they aren't, we can still do
* the copying in hardware.
*/
if (pSrcExaPixmap->accel_blocked || pDstExaPixmap->accel_blocked) {
int i;
for (i = 0; i < nbox; i++) {
/* src */
if ((pbox[i].x2 + dx + src_off_x) >= pExaScr->info->maxX ||
(pbox[i].y2 + dy + src_off_y) >= pExaScr->info->maxY)
goto fallback;
/* dst */
if ((pbox[i].x2 + dst_off_x) >= pExaScr->info->maxX ||
(pbox[i].y2 + dst_off_y) >= pExaScr->info->maxY)
goto fallback;
}
}
if (pExaScr->do_migration) {
ExaMigrationRec pixmaps[2];
pixmaps[0].as_dst = TRUE;
pixmaps[0].as_src = FALSE;
pixmaps[0].pPix = pDstPixmap;
pixmaps[0].pReg = dstregion;
pixmaps[1].as_dst = FALSE;
pixmaps[1].as_src = TRUE;
pixmaps[1].pPix = pSrcPixmap;
pixmaps[1].pReg = srcregion;
exaDoMigration(pixmaps, 2, TRUE);
}
/* Mixed directions must be handled specially if the card is lame */
if ((pExaScr->info->flags & EXA_TWO_BITBLT_DIRECTIONS) &&
reverse != upsidedown) {
if (exaCopyNtoNTwoDir(pSrcDrawable, pDstDrawable, pGC, pbox, nbox,
dx, dy))
goto out;
goto fallback;
}
if (exaPixmapHasGpuCopy(pDstPixmap)) {
/* Normal blitting. */
if (exaPixmapHasGpuCopy(pSrcPixmap)) {
if (!(*pExaScr->info->PrepareCopy)
(pSrcPixmap, pDstPixmap, reverse ? -1 : 1, upsidedown ? -1 : 1,
pGC ? pGC->alu : GXcopy, pGC ? pGC->planemask : FB_ALLONES)) {
goto fallback;
}
while (nbox--) {
(*pExaScr->info->Copy) (pDstPixmap,
pbox->x1 + dx + src_off_x,
pbox->y1 + dy + src_off_y,
pbox->x1 + dst_off_x,
pbox->y1 + dst_off_y,
pbox->x2 - pbox->x1,
pbox->y2 - pbox->y1);
pbox++;
}
(*pExaScr->info->DoneCopy) (pDstPixmap);
exaMarkSync(pDstDrawable->pScreen);
/* UTS: mainly for SHM PutImage's secondary path.
*
* Only taking this path for directly accessible pixmaps.
*/
}
else if (!pDstExaPixmap->pDamage && pSrcExaPixmap->sys_ptr) {
int bpp = pSrcDrawable->bitsPerPixel;
int src_stride = exaGetPixmapPitch(pSrcPixmap);
CARD8 *src = NULL;
if (!pExaScr->info->UploadToScreen)
goto fallback;
if (pSrcDrawable->bitsPerPixel != pDstDrawable->bitsPerPixel)
goto fallback;
if (pSrcDrawable->bitsPerPixel < 8)
goto fallback;
if (pGC &&
!(pGC->alu == GXcopy &&
EXA_PM_IS_SOLID(pSrcDrawable, pGC->planemask)))
goto fallback;
while (nbox--) {
src =
pSrcExaPixmap->sys_ptr + (pbox->y1 + dy +
src_off_y) * src_stride +
(pbox->x1 + dx + src_off_x) * (bpp / 8);
if (!pExaScr->info->
UploadToScreen(pDstPixmap, pbox->x1 + dst_off_x,
pbox->y1 + dst_off_y, pbox->x2 - pbox->x1,
pbox->y2 - pbox->y1, (char *) src,
src_stride))
goto fallback;
pbox++;
}
}
else
goto fallback;
}
else
goto fallback;
goto out;
fallback:
ret = FALSE;
out:
if (dstregion) {
RegionUninit(dstregion);
RegionDestroy(dstregion);
}
if (srcregion) {
RegionUninit(srcregion);
RegionDestroy(srcregion);
}
return ret;
}
/** Transfer \a pBits image to back-end server associated with \a
* pDrawable's screen. If primitive subdivision optimization is
* enabled, then only transfer the sections of \a pBits that are
* visible (i.e., not-clipped) to the back-end server. */
void dmxPutImage(DrawablePtr pDrawable, GCPtr pGC,
int depth, int x, int y, int w, int h,
int leftPad, int format, char *pBits)
{
DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
XImage *img;
if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
img = XCreateImage(dmxScreen->beDisplay,
dmxScreen->beVisuals[dmxScreen->beDefVisualIndex].visual,
depth, format, leftPad, pBits, w, h,
BitmapPad(dmxScreen->beDisplay),
(format == ZPixmap) ?
PixmapBytePad(w, depth) : BitmapBytePad(w+leftPad));
if (img) {
Drawable draw;
DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
if (dmxSubdividePrimitives && pGC->pCompositeClip) {
RegionPtr pSubImages;
RegionPtr pClip;
BoxRec box;
BoxPtr pBox;
int nBox;
box.x1 = x;
box.y1 = y;
box.x2 = x + w;
box.y2 = y + h;
pSubImages = RegionCreate(&box, 1);
pClip = RegionCreate(NullBox, 1);
RegionCopy(pClip, pGC->pCompositeClip);
RegionTranslate(pClip,
-pDrawable->x, -pDrawable->y);
RegionIntersect(pSubImages, pSubImages, pClip);
nBox = RegionNumRects(pSubImages);
pBox = RegionRects(pSubImages);
while (nBox--) {
XPutImage(dmxScreen->beDisplay, draw, pGCPriv->gc, img,
pBox->x1 - box.x1,
pBox->y1 - box.y1,
pBox->x1,
pBox->y1,
pBox->x2 - pBox->x1,
pBox->y2 - pBox->y1);
pBox++;
}
RegionDestroy(pClip);
RegionDestroy(pSubImages);
} else {
XPutImage(dmxScreen->beDisplay, draw, pGCPriv->gc,
img, 0, 0, x, y, w, h);
}
XFree(img); /* Use XFree instead of XDestroyImage
* because pBits is passed in from the
* caller. */
dmxSync(dmxScreen, FALSE);
} else {
/* Error -- this should not happen! */
}
}
static void
cwCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
{
ScreenPtr pScreen = pWin->drawable.pScreen;
SCREEN_PROLOGUE(pScreen, CopyWindow);
if (!cwDrawableIsRedirWindow((DrawablePtr)pWin)) {
(*pScreen->CopyWindow)(pWin, ptOldOrg, prgnSrc);
} else {
GCPtr pGC;
BoxPtr pExtents;
int x_off, y_off;
int dx, dy;
PixmapPtr pBackingPixmap;
RegionPtr pClip;
int src_x, src_y, dst_x, dst_y, w, h;
dx = ptOldOrg.x - pWin->drawable.x;
dy = ptOldOrg.y - pWin->drawable.y;
pExtents = RegionExtents(prgnSrc);
pBackingPixmap = (PixmapPtr) cwGetBackingDrawable((DrawablePtr)pWin,
&x_off, &y_off);
src_x = pExtents->x1 - pBackingPixmap->screen_x;
src_y = pExtents->y1 - pBackingPixmap->screen_y;
w = pExtents->x2 - pExtents->x1;
h = pExtents->y2 - pExtents->y1;
dst_x = src_x - dx;
dst_y = src_y - dy;
/* Translate region (as required by API) */
RegionTranslate(prgnSrc, -dx, -dy);
pGC = GetScratchGC(pBackingPixmap->drawable.depth, pScreen);
/*
* Copy region to GC as clip, aligning as dest clip
*/
pClip = RegionCreate(NULL, 0);
RegionIntersect(pClip, &pWin->borderClip, prgnSrc);
RegionTranslate(pClip,
-pBackingPixmap->screen_x,
-pBackingPixmap->screen_y);
(*pGC->funcs->ChangeClip) (pGC, CT_REGION, pClip, 0);
ValidateGC(&pBackingPixmap->drawable, pGC);
(*pGC->ops->CopyArea) (&pBackingPixmap->drawable,
&pBackingPixmap->drawable, pGC,
src_x, src_y, w, h, dst_x, dst_y);
(*pGC->funcs->DestroyClip) (pGC);
FreeScratchGC(pGC);
}
SCREEN_EPILOGUE(pScreen, CopyWindow, cwCopyWindow);
}
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)
RegionDestroy(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.
*/
RegionTranslate(pPicture->clientClip,
pDrawable->x + pPicture->clipOrigin.x,
pDrawable->y + pPicture->clipOrigin.y);
if (freeCompClip)
{
RegionIntersect(pPicture->pCompositeClip,
pregWin, pPicture->clientClip);
if (freeTmpClip)
RegionDestroy(pregWin);
}
else if (freeTmpClip)
{
RegionIntersect(pregWin, pregWin, pPicture->clientClip);
pPicture->pCompositeClip = pregWin;
}
else
{
pPicture->pCompositeClip = RegionCreate(NullBox, 0);
RegionIntersect(pPicture->pCompositeClip,
pregWin, pPicture->clientClip);
}
pPicture->freeCompClip = TRUE;
RegionTranslate(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)
{
RegionReset(pPicture->pCompositeClip, &pixbounds);
}
else
{
pPicture->freeCompClip = TRUE;
pPicture->pCompositeClip = RegionCreate(&pixbounds, 1);
}
if (pPicture->clientClipType == CT_REGION)
{
if(pDrawable->x || pDrawable->y) {
RegionTranslate(pPicture->clientClip,
pDrawable->x + pPicture->clipOrigin.x,
pDrawable->y + pPicture->clipOrigin.y);
RegionIntersect(pPicture->pCompositeClip,
pPicture->pCompositeClip, pPicture->clientClip);
RegionTranslate(pPicture->clientClip,
-(pDrawable->x + pPicture->clipOrigin.x),
-(pDrawable->y + pPicture->clipOrigin.y));
} else {
RegionTranslate(pPicture->pCompositeClip,
-pPicture->clipOrigin.x, -pPicture->clipOrigin.y);
RegionIntersect(pPicture->pCompositeClip,
pPicture->pCompositeClip, pPicture->clientClip);
RegionTranslate(pPicture->pCompositeClip,
pPicture->clipOrigin.x, pPicture->clipOrigin.y);
}
}
} /* end of composite clip for pixmap */
}
}
static Bool
localQueryLargestOffscreenArea(ScreenPtr pScreen,
int *width, int *height,
int granularity, int preferences, int severity)
{
FBManagerPtr offman;
RegionPtr newRegion = NULL;
BoxPtr pbox;
int nbox;
int x, w, h, area, oldArea;
*width = *height = oldArea = 0;
if (granularity <= 1)
granularity = 0;
if ((preferences < 0) || (preferences > 3))
return FALSE;
offman = (FBManagerPtr) dixLookupPrivate(&pScreen->devPrivates,
xf86FBScreenKey);
if (severity < 0)
severity = 0;
if (severity > 2)
severity = 2;
switch (severity) {
case 2:
if (offman->NumUsedAreas) {
FBLinkPtr pLink;
RegionRec tmpRegion;
newRegion = RegionCreate(NULL, 1);
RegionCopy(newRegion, offman->InitialBoxes);
pLink = offman->UsedAreas;
while (pLink) {
if (!pLink->area.RemoveAreaCallback) {
RegionInit(&tmpRegion, &(pLink->area.box), 1);
RegionSubtract(newRegion, newRegion, &tmpRegion);
RegionUninit(&tmpRegion);
}
pLink = pLink->next;
}
nbox = RegionNumRects(newRegion);
pbox = RegionRects(newRegion);
break;
}
case 1:
if (offman->NumUsedAreas) {
FBLinkPtr pLink;
RegionRec tmpRegion;
newRegion = RegionCreate(NULL, 1);
RegionCopy(newRegion, offman->FreeBoxes);
pLink = offman->UsedAreas;
while (pLink) {
if (pLink->area.RemoveAreaCallback) {
RegionInit(&tmpRegion, &(pLink->area.box), 1);
RegionAppend(newRegion, &tmpRegion);
RegionUninit(&tmpRegion);
}
pLink = pLink->next;
}
nbox = RegionNumRects(newRegion);
pbox = RegionRects(newRegion);
break;
}
default:
nbox = RegionNumRects(offman->FreeBoxes);
pbox = RegionRects(offman->FreeBoxes);
break;
}
while (nbox--) {
x = pbox->x1;
if (granularity > 1)
x = ((x + granularity - 1) / granularity) * granularity;
w = pbox->x2 - x;
h = pbox->y2 - pbox->y1;
area = w * h;
if (w > 0) {
Bool gotIt = FALSE;
switch (preferences) {
case FAVOR_AREA_THEN_WIDTH:
if ((area > oldArea) || ((area == oldArea) && (w > *width)))
gotIt = TRUE;
break;
case FAVOR_AREA_THEN_HEIGHT:
if ((area > oldArea) || ((area == oldArea) && (h > *height)))
gotIt = TRUE;
break;
case FAVOR_WIDTH_THEN_AREA:
if ((w > *width) || ((w == *width) && (area > oldArea)))
gotIt = TRUE;
break;
case FAVOR_HEIGHT_THEN_AREA:
if ((h > *height) || ((h == *height) && (area > oldArea)))
gotIt = TRUE;
break;
}
if (gotIt) {
*width = w;
*height = h;
oldArea = area;
}
}
pbox++;
}
if (newRegion)
RegionDestroy(newRegion);
return TRUE;
}
void
miComputeCompositeClip(GCPtr pGC, DrawablePtr pDrawable)
{
if (pDrawable->type == DRAWABLE_WINDOW) {
WindowPtr pWin = (WindowPtr) pDrawable;
RegionPtr pregWin;
Bool freeTmpClip, freeCompClip;
if (pGC->subWindowMode == IncludeInferiors) {
pregWin = NotClippedByChildren(pWin);
freeTmpClip = TRUE;
}
else {
pregWin = &pWin->clipList;
freeTmpClip = FALSE;
}
freeCompClip = pGC->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 (!pGC->clientClip) {
if (freeCompClip)
RegionDestroy(pGC->pCompositeClip);
pGC->pCompositeClip = pregWin;
pGC->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.
*/
RegionTranslate(pGC->clientClip,
pDrawable->x + pGC->clipOrg.x,
pDrawable->y + pGC->clipOrg.y);
if (freeCompClip) {
RegionIntersect(pGC->pCompositeClip, pregWin, pGC->clientClip);
if (freeTmpClip)
RegionDestroy(pregWin);
}
else if (freeTmpClip) {
RegionIntersect(pregWin, pregWin, pGC->clientClip);
pGC->pCompositeClip = pregWin;
}
else {
pGC->pCompositeClip = RegionCreate(NullBox, 0);
RegionIntersect(pGC->pCompositeClip, pregWin, pGC->clientClip);
}
pGC->freeCompClip = TRUE;
RegionTranslate(pGC->clientClip,
-(pDrawable->x + pGC->clipOrg.x),
-(pDrawable->y + pGC->clipOrg.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 (pGC->freeCompClip) {
RegionReset(pGC->pCompositeClip, &pixbounds);
}
else {
pGC->freeCompClip = TRUE;
pGC->pCompositeClip = RegionCreate(&pixbounds, 1);
}
if (pGC->clientClip) {
if (pDrawable->x || pDrawable->y) {
RegionTranslate(pGC->clientClip,
pDrawable->x + pGC->clipOrg.x,
pDrawable->y + pGC->clipOrg.y);
RegionIntersect(pGC->pCompositeClip,
pGC->pCompositeClip, pGC->clientClip);
RegionTranslate(pGC->clientClip,
-(pDrawable->x + pGC->clipOrg.x),
-(pDrawable->y + pGC->clipOrg.y));
}
else {
RegionTranslate(pGC->pCompositeClip,
-pGC->clipOrg.x, -pGC->clipOrg.y);
RegionIntersect(pGC->pCompositeClip,
pGC->pCompositeClip, pGC->clientClip);
RegionTranslate(pGC->pCompositeClip,
pGC->clipOrg.x, pGC->clipOrg.y);
}
}
} /* end of composite clip for pixmap */
} /* end miComputeCompositeClip */
void
winCopyWindowNativeGDI(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
{
DDXPointPtr pptSrc;
DDXPointPtr ppt;
RegionPtr prgnDst;
BoxPtr pBox;
int dx, dy;
int i, nbox;
WindowPtr pwinRoot;
BoxPtr pBoxDst;
ScreenPtr pScreen = pWin->drawable.pScreen;
winScreenPriv(pScreen);
/* Get a pointer to the root window */
pwinRoot = pWin->drawable.pScreen->root;
/* Create a region for the destination */
prgnDst = RegionCreate(NULL, 1);
/* Calculate the shift from the source to the destination */
dx = ptOldOrg.x - pWin->drawable.x;
dy = ptOldOrg.y - pWin->drawable.y;
/* Translate the region from the destination to the source? */
RegionTranslate(prgnSrc, -dx, -dy);
RegionIntersect(prgnDst, &pWin->borderClip, prgnSrc);
/* Get a pointer to the first box in the region to be copied */
pBox = RegionRects(prgnDst);
/* Get the number of boxes in the region */
nbox = RegionNumRects(prgnDst);
/* Allocate source points for each box */
if (!(pptSrc = (DDXPointPtr) malloc(nbox * sizeof(DDXPointRec))))
return;
/* Set an iterator pointer */
ppt = pptSrc;
/* Calculate the source point of each box? */
for (i = nbox; --i >= 0; ppt++, pBox++) {
ppt->x = pBox->x1 + dx;
ppt->y = pBox->y1 + dy;
}
/* Setup loop pointers again */
pBoxDst = RegionRects(prgnDst);
ppt = pptSrc;
/* BitBlt each source to the destination point */
for (i = nbox; --i >= 0; pBoxDst++, ppt++) {
BitBlt(pScreenPriv->hdcScreen,
pBoxDst->x1, pBoxDst->y1,
pBoxDst->x2 - pBoxDst->x1, pBoxDst->y2 - pBoxDst->y1,
pScreenPriv->hdcScreen, ppt->x, ppt->y, SRCCOPY);
}
/* Cleanup the regions, etc. */
free(pptSrc);
RegionDestroy(prgnDst);
}
void
miMoveWindow(WindowPtr pWin, int x, int y, WindowPtr pNextSib, VTKind kind)
{
WindowPtr pParent;
Bool WasViewable = (Bool) (pWin->viewable);
short bw;
RegionPtr oldRegion = NULL;
DDXPointRec oldpt;
Bool anyMarked = FALSE;
ScreenPtr pScreen;
WindowPtr windowToValidate;
WindowPtr pLayerWin;
/* if this is a root window, can't be moved */
if (!(pParent = pWin->parent))
return;
pScreen = pWin->drawable.pScreen;
bw = wBorderWidth(pWin);
oldpt.x = pWin->drawable.x;
oldpt.y = pWin->drawable.y;
if (WasViewable) {
oldRegion = RegionCreate(NullBox, 1);
RegionCopy(oldRegion, &pWin->borderClip);
anyMarked = (*pScreen->MarkOverlappedWindows) (pWin, pWin, &pLayerWin);
}
pWin->origin.x = x + (int) bw;
pWin->origin.y = y + (int) bw;
x = pWin->drawable.x = pParent->drawable.x + x + (int) bw;
y = pWin->drawable.y = pParent->drawable.y + y + (int) bw;
SetWinSize(pWin);
SetBorderSize(pWin);
(*pScreen->PositionWindow) (pWin, x, y);
windowToValidate = MoveWindowInStack(pWin, pNextSib);
ResizeChildrenWinSize(pWin, x - oldpt.x, y - oldpt.y, 0, 0);
if (WasViewable) {
if (pLayerWin == pWin)
anyMarked |= (*pScreen->MarkOverlappedWindows)
(pWin, windowToValidate, NULL);
else
anyMarked |= (*pScreen->MarkOverlappedWindows)
(pWin, pLayerWin, NULL);
if (anyMarked) {
(*pScreen->ValidateTree) (pLayerWin->parent, NullWindow, kind);
(*pWin->drawable.pScreen->CopyWindow) (pWin, oldpt, oldRegion);
RegionDestroy(oldRegion);
/* XXX need to retile border if ParentRelative origin */
(*pScreen->HandleExposures) (pLayerWin->parent);
}
if (anyMarked && pScreen->PostValidateTree)
(*pScreen->PostValidateTree) (pLayerWin->parent, NullWindow, kind);
}
if (pWin->realized)
WindowsRestructured();
}
static int
RegionOperate(ClientPtr client,
WindowPtr pWin,
int kind,
RegionPtr *destRgnp,
RegionPtr srcRgn, int op, int xoff, int yoff, CreateDftPtr create)
{
if (srcRgn && (xoff || yoff))
RegionTranslate(srcRgn, xoff, yoff);
if (!pWin->parent) {
if (srcRgn)
RegionDestroy(srcRgn);
return Success;
}
/* May/30/2001:
* The shape.PS specs say if src is None, existing shape is to be
* removed (and so the op-code has no meaning in such removal);
* see shape.PS, page 3, ShapeMask.
*/
if (srcRgn == NULL) {
if (*destRgnp != NULL) {
RegionDestroy(*destRgnp);
*destRgnp = 0;
/* go on to remove shape and generate ShapeNotify */
}
else {
/* May/30/2001:
* The target currently has no shape in effect, so nothing to
* do here. The specs say that ShapeNotify is generated whenever
* the client region is "modified"; since no modification is done
* here, we do not generate that event. The specs does not say
* "it is an error to request removal when there is no shape in
* effect", so we return good status.
*/
return Success;
}
}
else
switch (op) {
case ShapeSet:
if (*destRgnp)
RegionDestroy(*destRgnp);
*destRgnp = srcRgn;
srcRgn = 0;
break;
case ShapeUnion:
if (*destRgnp)
RegionUnion(*destRgnp, *destRgnp, srcRgn);
break;
case ShapeIntersect:
if (*destRgnp)
RegionIntersect(*destRgnp, *destRgnp, srcRgn);
else {
*destRgnp = srcRgn;
srcRgn = 0;
}
break;
case ShapeSubtract:
if (!*destRgnp)
*destRgnp = (*create) (pWin);
RegionSubtract(*destRgnp, *destRgnp, srcRgn);
break;
case ShapeInvert:
if (!*destRgnp)
*destRgnp = RegionCreate((BoxPtr) 0, 0);
else
RegionSubtract(*destRgnp, srcRgn, *destRgnp);
break;
default:
client->errorValue = op;
return BadValue;
}
if (srcRgn)
RegionDestroy(srcRgn);
(*pWin->drawable.pScreen->SetShape) (pWin, kind);
SendShapeNotify(pWin, kind);
return Success;
}
static int
ProcShapeCombine(ClientPtr client)
{
WindowPtr pSrcWin, pDestWin;
REQUEST(xShapeCombineReq);
RegionPtr srcRgn;
RegionPtr *destRgn;
CreateDftPtr createDefault;
CreateDftPtr createSrc;
RegionPtr tmp;
int rc;
REQUEST_SIZE_MATCH(xShapeCombineReq);
UpdateCurrentTime();
rc = dixLookupWindow(&pDestWin, stuff->dest, client, DixSetAttrAccess);
if (rc != Success)
return rc;
if (!pDestWin->optional)
MakeWindowOptional(pDestWin);
switch (stuff->destKind) {
case ShapeBounding:
createDefault = CreateBoundingShape;
break;
case ShapeClip:
createDefault = CreateClipShape;
break;
case ShapeInput:
createDefault = CreateBoundingShape;
break;
default:
client->errorValue = stuff->destKind;
return BadValue;
}
rc = dixLookupWindow(&pSrcWin, stuff->src, client, DixGetAttrAccess);
if (rc != Success)
return rc;
switch (stuff->srcKind) {
case ShapeBounding:
srcRgn = wBoundingShape(pSrcWin);
createSrc = CreateBoundingShape;
break;
case ShapeClip:
srcRgn = wClipShape(pSrcWin);
createSrc = CreateClipShape;
break;
case ShapeInput:
srcRgn = wInputShape(pSrcWin);
createSrc = CreateBoundingShape;
break;
default:
client->errorValue = stuff->srcKind;
return BadValue;
}
if (pSrcWin->drawable.pScreen != pDestWin->drawable.pScreen) {
return BadMatch;
}
if (srcRgn) {
tmp = RegionCreate((BoxPtr) 0, 0);
RegionCopy(tmp, srcRgn);
srcRgn = tmp;
}
else
srcRgn = (*createSrc) (pSrcWin);
if (!pDestWin->optional)
MakeWindowOptional(pDestWin);
switch (stuff->destKind) {
case ShapeBounding:
destRgn = &pDestWin->optional->boundingShape;
break;
case ShapeClip:
destRgn = &pDestWin->optional->clipShape;
break;
case ShapeInput:
destRgn = &pDestWin->optional->inputShape;
break;
default:
return BadValue;
}
return RegionOperate(client, pDestWin, (int) stuff->destKind,
destRgn, srcRgn, (int) stuff->op,
stuff->xOff, stuff->yOff, createDefault);
}
void
miSlideAndSizeWindow(WindowPtr pWin,
int x, int y,
unsigned int w, unsigned int h, WindowPtr pSib)
{
WindowPtr pParent;
Bool WasViewable = (Bool) (pWin->viewable);
unsigned short width = pWin->drawable.width, height = pWin->drawable.height;
short oldx = pWin->drawable.x, oldy = pWin->drawable.y;
int bw = wBorderWidth(pWin);
short dw, dh;
DDXPointRec oldpt;
RegionPtr oldRegion = NULL;
Bool anyMarked = FALSE;
ScreenPtr pScreen;
WindowPtr pFirstChange;
WindowPtr pChild;
RegionPtr gravitate[StaticGravity + 1];
unsigned g;
int nx, ny; /* destination x,y */
int newx, newy; /* new inner window position */
RegionPtr pRegion = NULL;
RegionPtr destClip; /* portions of destination already written */
RegionPtr oldWinClip = NULL; /* old clip list for window */
RegionPtr borderVisible = NullRegion; /* visible area of the border */
Bool shrunk = FALSE; /* shrunk in an inner dimension */
Bool moved = FALSE; /* window position changed */
WindowPtr pLayerWin;
/* if this is a root window, can't be resized */
if (!(pParent = pWin->parent))
return;
pScreen = pWin->drawable.pScreen;
newx = pParent->drawable.x + x + bw;
newy = pParent->drawable.y + y + bw;
if (WasViewable) {
anyMarked = FALSE;
/*
* save the visible region of the window
*/
oldRegion = RegionCreate(NullBox, 1);
RegionCopy(oldRegion, &pWin->winSize);
/*
* categorize child windows into regions to be moved
*/
for (g = 0; g <= StaticGravity; g++)
gravitate[g] = (RegionPtr) NULL;
for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) {
g = pChild->winGravity;
if (g != UnmapGravity) {
if (!gravitate[g])
gravitate[g] = RegionCreate(NullBox, 1);
RegionUnion(gravitate[g], gravitate[g], &pChild->borderClip);
}
else {
UnmapWindow(pChild, TRUE);
anyMarked = TRUE;
}
}
anyMarked |= (*pScreen->MarkOverlappedWindows) (pWin, pWin, &pLayerWin);
oldWinClip = NULL;
if (pWin->bitGravity != ForgetGravity) {
oldWinClip = RegionCreate(NullBox, 1);
RegionCopy(oldWinClip, &pWin->clipList);
}
/*
* if the window is changing size, borderExposed
* can't be computed correctly without some help.
*/
if (pWin->drawable.height > h || pWin->drawable.width > w)
shrunk = TRUE;
if (newx != oldx || newy != oldy)
moved = TRUE;
if ((pWin->drawable.height != h || pWin->drawable.width != w) &&
HasBorder(pWin)) {
borderVisible = RegionCreate(NullBox, 1);
/* for tiled borders, we punt and draw the whole thing */
if (pWin->borderIsPixel || !moved) {
if (shrunk || moved)
RegionSubtract(borderVisible,
&pWin->borderClip, &pWin->winSize);
else
RegionCopy(borderVisible, &pWin->borderClip);
}
}
}
pWin->origin.x = x + bw;
pWin->origin.y = y + bw;
pWin->drawable.height = h;
pWin->drawable.width = w;
x = pWin->drawable.x = newx;
y = pWin->drawable.y = newy;
SetWinSize(pWin);
SetBorderSize(pWin);
dw = (int) w - (int) width;
dh = (int) h - (int) height;
ResizeChildrenWinSize(pWin, x - oldx, y - oldy, dw, dh);
/* let the hardware adjust background and border pixmaps, if any */
(*pScreen->PositionWindow) (pWin, x, y);
pFirstChange = MoveWindowInStack(pWin, pSib);
if (WasViewable) {
pRegion = RegionCreate(NullBox, 1);
if (pLayerWin == pWin)
anyMarked |= (*pScreen->MarkOverlappedWindows) (pWin, pFirstChange,
NULL);
else
anyMarked |= (*pScreen->MarkOverlappedWindows) (pWin, pLayerWin,
NULL);
if (pWin->valdata) {
pWin->valdata->before.resized = TRUE;
pWin->valdata->before.borderVisible = borderVisible;
}
if (anyMarked)
(*pScreen->ValidateTree) (pLayerWin->parent, pFirstChange, VTOther);
/*
* the entire window is trashed unless bitGravity
* recovers portions of it
*/
RegionCopy(&pWin->valdata->after.exposed, &pWin->clipList);
}
GravityTranslate(x, y, oldx, oldy, dw, dh, pWin->bitGravity, &nx, &ny);
if (WasViewable) {
/* avoid the border */
if (HasBorder(pWin)) {
int offx, offy, dx, dy;
/* kruft to avoid double translates for each gravity */
offx = 0;
offy = 0;
for (g = 0; g <= StaticGravity; g++) {
if (!gravitate[g])
continue;
/* align winSize to gravitate[g].
* winSize is in new coordinates,
* gravitate[g] is still in old coordinates */
GravityTranslate(x, y, oldx, oldy, dw, dh, g, &nx, &ny);
dx = (oldx - nx) - offx;
dy = (oldy - ny) - offy;
if (dx || dy) {
RegionTranslate(&pWin->winSize, dx, dy);
offx += dx;
offy += dy;
}
RegionIntersect(gravitate[g], gravitate[g], &pWin->winSize);
}
/* get winSize back where it belongs */
if (offx || offy)
RegionTranslate(&pWin->winSize, -offx, -offy);
}
/*
* add screen bits to the appropriate bucket
*/
if (oldWinClip) {
/*
* clip to new clipList
*/
RegionCopy(pRegion, oldWinClip);
RegionTranslate(pRegion, nx - oldx, ny - oldy);
RegionIntersect(oldWinClip, pRegion, &pWin->clipList);
/*
* don't step on any gravity bits which will be copied after this
* region. Note -- this assumes that the regions will be copied
* in gravity order.
*/
for (g = pWin->bitGravity + 1; g <= StaticGravity; g++) {
if (gravitate[g])
RegionSubtract(oldWinClip, oldWinClip, gravitate[g]);
}
RegionTranslate(oldWinClip, oldx - nx, oldy - ny);
g = pWin->bitGravity;
if (!gravitate[g])
gravitate[g] = oldWinClip;
else {
RegionUnion(gravitate[g], gravitate[g], oldWinClip);
RegionDestroy(oldWinClip);
}
}
/*
* move the bits on the screen
*/
destClip = NULL;
for (g = 0; g <= StaticGravity; g++) {
if (!gravitate[g])
continue;
GravityTranslate(x, y, oldx, oldy, dw, dh, g, &nx, &ny);
oldpt.x = oldx + (x - nx);
oldpt.y = oldy + (y - ny);
/* Note that gravitate[g] is *translated* by CopyWindow */
/* only copy the remaining useful bits */
RegionIntersect(gravitate[g], gravitate[g], oldRegion);
/* clip to not overwrite already copied areas */
if (destClip) {
RegionTranslate(destClip, oldpt.x - x, oldpt.y - y);
RegionSubtract(gravitate[g], gravitate[g], destClip);
RegionTranslate(destClip, x - oldpt.x, y - oldpt.y);
}
/* and move those bits */
if (oldpt.x != x || oldpt.y != y
#ifdef COMPOSITE
|| pWin->redirectDraw
#endif
) {
(*pWin->drawable.pScreen->CopyWindow) (pWin, oldpt,
gravitate[g]);
}
/* remove any overwritten bits from the remaining useful bits */
RegionSubtract(oldRegion, oldRegion, gravitate[g]);
/*
* recompute exposed regions of child windows
*/
for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib) {
if (pChild->winGravity != g)
continue;
RegionIntersect(pRegion, &pChild->borderClip, gravitate[g]);
TraverseTree(pChild, miRecomputeExposures, (void *) pRegion);
}
/*
* remove the successfully copied regions of the
* window from its exposed region
*/
if (g == pWin->bitGravity)
RegionSubtract(&pWin->valdata->after.exposed,
&pWin->valdata->after.exposed, gravitate[g]);
if (!destClip)
destClip = gravitate[g];
else {
RegionUnion(destClip, destClip, gravitate[g]);
RegionDestroy(gravitate[g]);
}
}
RegionDestroy(oldRegion);
RegionDestroy(pRegion);
if (destClip)
RegionDestroy(destClip);
if (anyMarked)
(*pScreen->HandleExposures) (pLayerWin->parent);
if (anyMarked && pScreen->PostValidateTree)
(*pScreen->PostValidateTree) (pLayerWin->parent, pFirstChange,
VTOther);
}
if (pWin->realized)
WindowsRestructured();
}
static void
cwValidateGC(GCPtr pGC, unsigned long stateChanges, DrawablePtr pDrawable)
{
GCPtr pBackingGC;
cwGCPtr pPriv;
DrawablePtr pBackingDrawable;
int x_off, y_off;
pPriv = (cwGCPtr) getCwGC (pGC);
FUNC_PROLOGUE(pGC, pPriv);
/*
* Must call ValidateGC to ensure pGC->pCompositeClip is valid
*/
(*pGC->funcs->ValidateGC)(pGC, stateChanges, pDrawable);
if (!cwDrawableIsRedirWindow(pDrawable)) {
cwDestroyBackingGC(pGC);
FUNC_EPILOGUE(pGC, pPriv);
return;
} else {
if (!pPriv->pBackingGC && !cwCreateBackingGC(pGC, pDrawable)) {
FUNC_EPILOGUE(pGC, pPriv);
return;
}
}
pBackingGC = pPriv->pBackingGC;
pBackingDrawable = cwGetBackingDrawable(pDrawable, &x_off, &y_off);
pPriv->stateChanges |= stateChanges;
/*
* Copy the composite clip into the backing GC if either
* the drawable clip list has changed or the client has changed
* the client clip data
*/
if (pDrawable->serialNumber != pPriv->serialNumber ||
(pPriv->stateChanges & (GCClipXOrigin|GCClipYOrigin|GCClipMask)))
{
ChangeGCVal vals[2];
RegionPtr pCompositeClip;
pCompositeClip = RegionCreate(NULL, 0);
RegionCopy(pCompositeClip, pGC->pCompositeClip);
/* Either the drawable has changed, or the clip list in the drawable has
* changed. Copy the new clip list over and set the new translated
* offset for it.
*/
(*pBackingGC->funcs->ChangeClip) (pBackingGC, CT_REGION,
(pointer) pCompositeClip, 0);
vals[0].val = x_off - pDrawable->x;
vals[1].val = y_off - pDrawable->y;
ChangeGC(NullClient, pBackingGC,
(GCClipXOrigin | GCClipYOrigin), vals);
pPriv->serialNumber = pDrawable->serialNumber;
/*
* Mask off any client clip changes to make sure
* the clip list set above remains in effect
*/
pPriv->stateChanges &= ~(GCClipXOrigin|GCClipYOrigin|GCClipMask);
}
if (pPriv->stateChanges) {
CopyGC(pGC, pBackingGC, pPriv->stateChanges);
pPriv->stateChanges = 0;
}
if ((pGC->patOrg.x + x_off) != pBackingGC->patOrg.x ||
(pGC->patOrg.y + y_off) != pBackingGC->patOrg.y)
{
ChangeGCVal vals[2];
vals[0].val = pGC->patOrg.x + x_off;
vals[1].val = pGC->patOrg.y + y_off;
ChangeGC(NullClient, pBackingGC,
(GCTileStipXOrigin | GCTileStipYOrigin), vals);
}
ValidateGC(pBackingDrawable, pBackingGC);
FUNC_EPILOGUE(pGC, pPriv);
}
RegionPtr
miHandleExposures(DrawablePtr pSrcDrawable, DrawablePtr pDstDrawable,
GCPtr pGC, int srcx, int srcy, int width, int height,
int dstx, int dsty)
{
RegionPtr prgnSrcClip; /* drawable-relative source clip */
RegionRec rgnSrcRec;
RegionPtr prgnDstClip; /* drawable-relative dest clip */
RegionRec rgnDstRec;
BoxRec srcBox; /* unclipped source */
RegionRec rgnExposed; /* exposed region, calculated source-
relative, made dst relative to
intersect with visible parts of
dest and send events to client,
and then screen relative to paint
the window background
*/
WindowPtr pSrcWin;
BoxRec expBox = { 0, };
Bool extents;
/* avoid work if we can */
if (!pGC->graphicsExposures && pDstDrawable->type == DRAWABLE_PIXMAP)
return NULL;
srcBox.x1 = srcx;
srcBox.y1 = srcy;
srcBox.x2 = srcx + width;
srcBox.y2 = srcy + height;
if (pSrcDrawable->type != DRAWABLE_PIXMAP) {
BoxRec TsrcBox;
TsrcBox.x1 = srcx + pSrcDrawable->x;
TsrcBox.y1 = srcy + pSrcDrawable->y;
TsrcBox.x2 = TsrcBox.x1 + width;
TsrcBox.y2 = TsrcBox.y1 + height;
pSrcWin = (WindowPtr) pSrcDrawable;
if (pGC->subWindowMode == IncludeInferiors) {
prgnSrcClip = NotClippedByChildren(pSrcWin);
if ((RegionContainsRect(prgnSrcClip, &TsrcBox)) == rgnIN) {
RegionDestroy(prgnSrcClip);
return NULL;
}
}
else {
if ((RegionContainsRect(&pSrcWin->clipList, &TsrcBox)) == rgnIN)
return NULL;
prgnSrcClip = &rgnSrcRec;
RegionNull(prgnSrcClip);
RegionCopy(prgnSrcClip, &pSrcWin->clipList);
}
RegionTranslate(prgnSrcClip, -pSrcDrawable->x, -pSrcDrawable->y);
}
else {
BoxRec box;
if ((srcBox.x1 >= 0) && (srcBox.y1 >= 0) &&
(srcBox.x2 <= pSrcDrawable->width) &&
(srcBox.y2 <= pSrcDrawable->height))
return NULL;
box.x1 = 0;
box.y1 = 0;
box.x2 = pSrcDrawable->width;
box.y2 = pSrcDrawable->height;
prgnSrcClip = &rgnSrcRec;
RegionInit(prgnSrcClip, &box, 1);
pSrcWin = NULL;
}
if (pDstDrawable == pSrcDrawable) {
prgnDstClip = prgnSrcClip;
}
else if (pDstDrawable->type != DRAWABLE_PIXMAP) {
if (pGC->subWindowMode == IncludeInferiors) {
prgnDstClip = NotClippedByChildren((WindowPtr) pDstDrawable);
}
else {
prgnDstClip = &rgnDstRec;
RegionNull(prgnDstClip);
RegionCopy(prgnDstClip, &((WindowPtr) pDstDrawable)->clipList);
}
RegionTranslate(prgnDstClip, -pDstDrawable->x, -pDstDrawable->y);
}
else {
BoxRec box;
box.x1 = 0;
box.y1 = 0;
box.x2 = pDstDrawable->width;
box.y2 = pDstDrawable->height;
prgnDstClip = &rgnDstRec;
RegionInit(prgnDstClip, &box, 1);
}
/* drawable-relative source region */
RegionInit(&rgnExposed, &srcBox, 1);
/* now get the hidden parts of the source box */
RegionSubtract(&rgnExposed, &rgnExposed, prgnSrcClip);
/* move them over the destination */
RegionTranslate(&rgnExposed, dstx - srcx, dsty - srcy);
/* intersect with visible areas of dest */
RegionIntersect(&rgnExposed, &rgnExposed, prgnDstClip);
/* intersect with client clip region. */
if (pGC->clientClip)
RegionIntersect(&rgnExposed, &rgnExposed, pGC->clientClip);
/*
* If we have LOTS of rectangles, we decide to take the extents
* and force an exposure on that. This should require much less
* work overall, on both client and server. This is cheating, but
* isn't prohibited by the protocol ("spontaneous combustion" :-)
* for windows.
*/
extents = pGC->graphicsExposures &&
(RegionNumRects(&rgnExposed) > RECTLIMIT) &&
(pDstDrawable->type != DRAWABLE_PIXMAP);
if (pSrcWin) {
RegionPtr region;
if (!(region = wClipShape(pSrcWin)))
region = wBoundingShape(pSrcWin);
/*
* If you try to CopyArea the extents of a shaped window, compacting the
* exposed region will undo all our work!
*/
if (extents && pSrcWin && region &&
(RegionContainsRect(region, &srcBox) != rgnIN))
extents = FALSE;
}
if (extents) {
expBox = *RegionExtents(&rgnExposed);
RegionReset(&rgnExposed, &expBox);
}
if ((pDstDrawable->type != DRAWABLE_PIXMAP) &&
(((WindowPtr) pDstDrawable)->backgroundState != None)) {
WindowPtr pWin = (WindowPtr) pDstDrawable;
/* make the exposed area screen-relative */
RegionTranslate(&rgnExposed, pDstDrawable->x, pDstDrawable->y);
if (extents) {
/* PaintWindow doesn't clip, so we have to */
RegionIntersect(&rgnExposed, &rgnExposed, &pWin->clipList);
}
pDstDrawable->pScreen->PaintWindow((WindowPtr) pDstDrawable,
&rgnExposed, PW_BACKGROUND);
if (extents) {
RegionReset(&rgnExposed, &expBox);
}
else
RegionTranslate(&rgnExposed, -pDstDrawable->x, -pDstDrawable->y);
}
if (prgnDstClip == &rgnDstRec) {
RegionUninit(prgnDstClip);
}
else if (prgnDstClip != prgnSrcClip) {
RegionDestroy(prgnDstClip);
}
if (prgnSrcClip == &rgnSrcRec) {
RegionUninit(prgnSrcClip);
}
else {
RegionDestroy(prgnSrcClip);
}
if (pGC->graphicsExposures) {
/* don't look */
RegionPtr exposed = RegionCreate(NullBox, 0);
*exposed = rgnExposed;
return exposed;
}
else {
RegionUninit(&rgnExposed);
return NULL;
}
}
