void
fb_graphicsflush(PSD psd)
{
MWRECT *prc = fb_updateregion->rects;
int count = fb_updateregion->numRects;
int x, y, w, h;
int n = 1;
/* use single bounding box extent*/
x = fb_updateregion->extents.left;
y = fb_updateregion->extents.top;
w = fb_updateregion->extents.right - x;
h = fb_updateregion->extents.bottom - y;
DPRINTF("Extents: %d (%d,%d %d,%d)\n", count, x, y, w, h);
/* or loop through individual list*/
while (--count >= 0) {
int rx1, ry1, rx2, ry2;
rx1 = prc->left;
ry1 = prc->top;
rx2 = prc->right;
ry2 = prc->bottom;
DPRINTF(" %d: %d,%d %d,%d\n", n++, rx1, ry1, rx2-rx1, ry2-ry1);
++prc;
}
/* empty update region*/
GdSetRectRegion(fb_updateregion, 0, 0, 0, 0);
}
/* clear update region for layered windows repainting.
* Since layered windows is recursive, you cannot clear this
* region after the window is painted, since other windows
* may depend on repainting this region too. Instead, enqueue
* a message to clear region until all painting is complete
*/
void chkUpdateRegion(HWND hWnd)
{
if (hWnd->gotClearRegionMsg == REGION_NEEDSCLEAR)
{
hWnd->gotClearRegionMsg = REGION_CLEARED;
GdSetRectRegion(hWnd->update, 0, 0, 0, 0);
}
}
BOOL WINAPI
EndPaint(HWND hwnd, CONST PAINTSTRUCT *lpPaint)
{
ReleaseDC(hwnd, lpPaint->hdc);
#if UPDATEREGIONS
/* don't clear update region until done dragging*/
if(mwERASEMOVE && !dragwp)
GdSetRectRegion(hwnd->update, 0, 0, 0, 0);
#endif
ShowCaret(hwnd);
return TRUE;
}
/*
* Allows either or both left and top to be greater than right or bottom.
*/
VOID WINAPI
SetRectRgn( HRGN hrgn, INT left, INT top, INT right, INT bottom )
{
MWRGNOBJ * obj;
MWCLIPREGION *rgn;
/*TRACE(region, " %04x %d,%d-%d,%d\n", hrgn, left, top, right, bottom );*/
if (!(obj = (MWRGNOBJ *) GDI_GetObjPtr( hrgn, OBJ_REGION ))) return;
if (left > right) { INT tmp = left; left = right; right = tmp; }
if (top > bottom) { INT tmp = top; top = bottom; bottom = tmp; }
rgn = obj->rgn;
GdSetRectRegion(rgn, left, top, right, bottom);
}
BOOL WINAPI
EndPaint(HWND hwnd, CONST PAINTSTRUCT *lpPaint)
{
if( hwnd->paintBrush != NULL )
{
SelectObject ( lpPaint->hdc, GetStockObject(NULL_BRUSH) );
DeleteObject ( hwnd->paintBrush );
hwnd->paintBrush = NULL;
}
if( hwnd->paintPen != NULL )
{
SelectObject ( lpPaint->hdc, GetStockObject(BLACK_PEN) );
DeleteObject ( hwnd->paintPen );
hwnd->paintPen = NULL;
}
ReleaseDC(hwnd, lpPaint->hdc);
#if UPDATEREGIONS
/* don't clear update region until done dragging*/
if(mwERASEMOVE && !dragwp)
GdSetRectRegion(hwnd->update, 0, 0, 0, 0);
#endif
ShowCaret(hwnd);
return TRUE;
}
/*
* Set the clip rectangles for a window taking into account other
* windows that may be obscuring it. The windows that may be obscuring
* this one are the siblings of each direct ancestor which are higher
* in priority than those ancestors. Also, each parent limits the visible
* area of the window. The clipping is not done if it is already up to
* date of if the window is not outputtable.
*/
void
GsSetClipWindow(GR_WINDOW *wp, MWCLIPREGION *userregion, int flags)
{
GR_WINDOW *orgwp; /* original window pointer */
GR_WINDOW *pwp; /* parent window */
GR_WINDOW *sibwp; /* sibling windows */
GR_COORD minx; /* minimum clip x coordinate */
GR_COORD miny; /* minimum clip y coordinate */
GR_COORD maxx; /* maximum clip x coordinate */
GR_COORD maxy; /* maximum clip y coordinate */
GR_COORD diff; /* difference in coordinates */
GR_SIZE bs; /* border size */
GR_COORD x, y, width, height;
MWCLIPREGION *vis, *r;
if (wp->unmapcount || !wp->output)
return;
clipwp = wp;
/*
* Start with the rectangle for the complete window.
* We will then cut pieces out of it as needed.
*/
x = wp->x;
y = wp->y;
width = wp->width;
height = wp->height;
/*
* First walk upwards through all parent windows,
* and restrict the visible part of this window to the part
* that shows through all of those parent windows.
*/
pwp = wp;
while (pwp != rootwp) {
pwp = pwp->parent;
diff = pwp->x - x;
if (diff > 0) {
width -= diff;
x = pwp->x;
}
diff = (pwp->x + pwp->width) - (x + width);
if (diff < 0)
width += diff;
diff = pwp->y - y;
if (diff > 0) {
height -= diff;
y = pwp->y;
}
diff = (pwp->y + pwp->height) - (y + height);
if (diff < 0)
height += diff;
}
/*
* If the window is completely clipped out of view, then
* set the clipping region to indicate that.
*/
if (width <= 0 || height <= 0) {
GdSetClipRegion(clipwp->psd, NULL);
return;
}
/*
* Allocate region to clipped size of window
*/
vis = GdAllocRectRegion(x, y, x+width, y+height);
/*
* Allocate temp region
*/
r = GdAllocRegion();
/*
* Now examine all windows that obscure this window, and
* for each obscuration, break up the clip rectangles into
* the smaller pieces that are still visible. The windows
* that can obscure us are the earlier siblings of all of
* our parents.
*/
orgwp = wp;
pwp = wp;
while (pwp != NULL) {
wp = pwp;
pwp = wp->parent;
if(!pwp) {
/* We're clipping the root window*/
if (!(flags & GR_MODE_EXCLUDECHILDREN))
/* start with root's children*/
sibwp = rootwp->children;
else sibwp = NULL; /* no search*/
wp = NULL; /* search all root's children*/
} else {
sibwp = pwp->children; /* clip siblings*/
}
for (; sibwp != wp; sibwp = sibwp->siblings) {
if (sibwp->unmapcount || !sibwp->output)
continue;
bs = sibwp->bordersize;
minx = sibwp->x - bs;
miny = sibwp->y - bs;
maxx = sibwp->x + sibwp->width + bs;
maxy = sibwp->y + sibwp->height + bs;
GdSetRectRegion(r, minx, miny, maxx, maxy);
GdSubtractRegion(vis, vis, r);
}
/* if not clipping the root window, stop when you reach it*/
if (pwp == rootwp)
break;
}
wp = orgwp;
/*
* If not the root window, clip all children.
* (Root window's children are are clipped above)
*/
if(wp != rootwp && !(flags & GR_MODE_EXCLUDECHILDREN)) {
for (sibwp=wp->children; sibwp; sibwp = sibwp->siblings) {
if (sibwp->unmapcount || !sibwp->output)
continue;
bs = sibwp->bordersize;
minx = sibwp->x - bs;
miny = sibwp->y - bs;
maxx = sibwp->x + sibwp->width + bs;
maxy = sibwp->y + sibwp->height + bs;
GdSetRectRegion(r, minx, miny, maxx, maxy);
GdSubtractRegion(vis, vis, r);
}
}
/*
* Intersect with user region, if set.
*/
if (userregion) {
/* temporarily offset region by window coordinates*/
GdOffsetRegion(userregion, wp->x, wp->y);
GdIntersectRegion(vis, vis, userregion);
GdOffsetRegion(userregion, -wp->x, -wp->y);
}
/*
* Set the clip region (later destroy handled by GdSetClipRegion)
*/
GdSetClipRegion(clipwp->psd, vis);
/*
* Destroy temp region
*/
GdDestroyRegion(r);
}
/*
* GdAllocPolyPolygonRegion
*/
MWCLIPREGION *
GdAllocPolyPolygonRegion(MWPOINT *points, int *count, int nbpolygons, int mode)
{
MWCLIPREGION *rgn;
EdgeTableEntry *pAET; /* Active Edge Table */
int y; /* current scanline */
int iPts = 0; /* number of pts in buffer */
EdgeTableEntry *pWETE; /* Winding Edge Table Entry*/
ScanLineList *pSLL; /* current scanLineList */
MWPOINT *pts; /* output buffer */
EdgeTableEntry *pPrevAET; /* ptr to previous AET */
EdgeTable ET; /* header node for ET */
EdgeTableEntry AET; /* header node for AET */
EdgeTableEntry *pETEs; /* EdgeTableEntries pool */
ScanLineListBlock SLLBlock; /* header for scanlinelist */
int fixWAET = FALSE;
POINTBLOCK FirstPtBlock, *curPtBlock; /* PtBlock buffers */
POINTBLOCK *tmpPtBlock;
int numFullPtBlocks = 0;
int poly, total;
if(!(rgn = GdAllocRegion()))
return NULL;
/* special case a rectangle */
if (((nbpolygons == 1) && ((*count == 4) ||
((*count == 5) && (points[4].x == points[0].x)
&& (points[4].y == points[0].y)))) &&
(((points[0].y == points[1].y) &&
(points[1].x == points[2].x) &&
(points[2].y == points[3].y) &&
(points[3].x == points[0].x)) ||
((points[0].x == points[1].x) &&
(points[1].y == points[2].y) &&
(points[2].x == points[3].x) &&
(points[3].y == points[0].y))))
{
GdSetRectRegion( rgn,
MWMIN(points[0].x, points[2].x), MWMIN(points[0].y, points[2].y),
MWMAX(points[0].x, points[2].x), MWMAX(points[0].y, points[2].y) );
return rgn;
}
for(poly = total = 0; poly < nbpolygons; poly++)
total += count[poly];
if (! (pETEs = malloc( sizeof(EdgeTableEntry) * total )))
{
GdDestroyRegion( rgn );
return 0;
}
pts = FirstPtBlock.pts;
REGION_CreateETandAET(count, nbpolygons, points, &ET, &AET,
pETEs, &SLLBlock);
pSLL = ET.scanlines.next;
curPtBlock = &FirstPtBlock;
if (mode != MWPOLY_WINDING) {
/*
* for each scanline
*/
for (y = ET.ymin; y < ET.ymax; y++) {
/*
* Add a new edge to the active edge table when we
* get to the next edge.
*/
if (pSLL != NULL && y == pSLL->scanline) {
REGION_loadAET(&AET, pSLL->edgelist);
pSLL = pSLL->next;
}
pPrevAET = &AET;
pAET = AET.next;
/*
* for each active edge
*/
while (pAET) {
pts->x = pAET->bres.minor_axis, pts->y = y;
pts++, iPts++;
/*
* send out the buffer
*/
if (iPts == NUMPTSTOBUFFER) {
tmpPtBlock = malloc( sizeof(POINTBLOCK));
if(!tmpPtBlock) {
return 0;
}
curPtBlock->next = tmpPtBlock;
curPtBlock = tmpPtBlock;
pts = curPtBlock->pts;
numFullPtBlocks++;
iPts = 0;
}
EVALUATEEDGEEVENODD(pAET, pPrevAET, y);
}
REGION_InsertionSort(&AET);
}
}
else {
/*
* for each scanline
*/
for (y = ET.ymin; y < ET.ymax; y++) {
/*
* Add a new edge to the active edge table when we
* get to the next edge.
*/
if (pSLL != NULL && y == pSLL->scanline) {
REGION_loadAET(&AET, pSLL->edgelist);
REGION_computeWAET(&AET);
pSLL = pSLL->next;
}
pPrevAET = &AET;
pAET = AET.next;
pWETE = pAET;
/*
* for each active edge
*/
while (pAET) {
/*
* add to the buffer only those edges that
* are in the Winding active edge table.
*/
if (pWETE == pAET) {
pts->x = pAET->bres.minor_axis, pts->y = y;
pts++, iPts++;
/*
* send out the buffer
*/
if (iPts == NUMPTSTOBUFFER) {
tmpPtBlock = malloc( sizeof(POINTBLOCK) );
if(!tmpPtBlock) {
return 0;
}
curPtBlock->next = tmpPtBlock;
curPtBlock = tmpPtBlock;
pts = curPtBlock->pts;
numFullPtBlocks++; iPts = 0;
}
pWETE = pWETE->nextWETE;
}
EVALUATEEDGEWINDING(pAET, pPrevAET, y, fixWAET);
}
/*
* recompute the winding active edge table if
* we just resorted or have exited an edge.
*/
if (REGION_InsertionSort(&AET) || fixWAET) {
REGION_computeWAET(&AET);
fixWAET = FALSE;
}
}
}
REGION_FreeStorage(SLLBlock.next);
REGION_PtsToRegion(numFullPtBlocks, iPts, &FirstPtBlock, rgn);
for (curPtBlock = FirstPtBlock.next; --numFullPtBlocks >= 0;) {
tmpPtBlock = curPtBlock->next;
free( curPtBlock );
curPtBlock = tmpPtBlock;
}
free( pETEs );
return rgn;
}