static int ProcXF86DRIGetDrawableInfo( register ClientPtr client ) { xXF86DRIGetDrawableInfoReply rep; DrawablePtr pDrawable; int X, Y, W, H; drm_clip_rect_t * pClipRects, *pClippedRects; drm_clip_rect_t * pBackClipRects; int backX, backY, rc; REQUEST(xXF86DRIGetDrawableInfoReq); REQUEST_SIZE_MATCH(xXF86DRIGetDrawableInfoReq); if (stuff->screen >= screenInfo.numScreens) { client->errorValue = stuff->screen; return BadValue; } rep.type = X_Reply; rep.length = 0; rep.sequenceNumber = client->sequence; rc = dixLookupDrawable(&pDrawable, stuff->drawable, client, 0, DixReadAccess); if (rc != Success) return rc; if (!DRIGetDrawableInfo( screenInfo.screens[stuff->screen], pDrawable, (unsigned int*)&rep.drawableTableIndex, (unsigned int*)&rep.drawableTableStamp, (int*)&X, (int*)&Y, (int*)&W, (int*)&H, (int*)&rep.numClipRects, &pClipRects, &backX, &backY, (int*)&rep.numBackClipRects, &pBackClipRects)) { return BadValue; } rep.drawableX = X; rep.drawableY = Y; rep.drawableWidth = W; rep.drawableHeight = H; rep.length = (SIZEOF(xXF86DRIGetDrawableInfoReply) - SIZEOF(xGenericReply)); rep.backX = backX; rep.backY = backY; if (rep.numBackClipRects) rep.length += sizeof(drm_clip_rect_t) * rep.numBackClipRects; pClippedRects = pClipRects; if (rep.numClipRects) { /* Clip cliprects to screen dimensions (redirected windows) */ pClippedRects = xalloc(rep.numClipRects * sizeof(drm_clip_rect_t)); if (pClippedRects) { ScreenPtr pScreen = screenInfo.screens[stuff->screen]; int i, j; for (i = 0, j = 0; i < rep.numClipRects; i++) { pClippedRects[j].x1 = max(pClipRects[i].x1, 0); pClippedRects[j].y1 = max(pClipRects[i].y1, 0); pClippedRects[j].x2 = min(pClipRects[i].x2, pScreen->width); pClippedRects[j].y2 = min(pClipRects[i].y2, pScreen->height); if (pClippedRects[j].x1 < pClippedRects[j].x2 && pClippedRects[j].y1 < pClippedRects[j].y2) { j++; } } rep.numClipRects = j; } else { rep.numClipRects = 0; } rep.length += sizeof(drm_clip_rect_t) * rep.numClipRects; } rep.length = ((rep.length + 3) & ~3) >> 2; WriteToClient(client, sizeof(xXF86DRIGetDrawableInfoReply), (char *)&rep); if (rep.numClipRects) { WriteToClient(client, sizeof(drm_clip_rect_t) * rep.numClipRects, (char *)pClippedRects); xfree(pClippedRects); } if (rep.numBackClipRects) { WriteToClient(client, sizeof(drm_clip_rect_t) * rep.numBackClipRects, (char *)pBackClipRects); } return (client->noClientException); }
static int ProcXF86DRIGetDrawableInfo( register ClientPtr client ) { xXF86DRIGetDrawableInfoReply rep; DrawablePtr pDrawable; int X, Y, W, H; drm_clip_rect_t * pClipRects; drm_clip_rect_t * pBackClipRects; int backX, backY; REQUEST(xXF86DRIGetDrawableInfoReq); REQUEST_SIZE_MATCH(xXF86DRIGetDrawableInfoReq); if (stuff->screen >= screenInfo.numScreens) { client->errorValue = stuff->screen; return BadValue; } rep.type = X_Reply; rep.length = 0; rep.sequenceNumber = client->sequence; if (!(pDrawable = (DrawablePtr)SecurityLookupDrawable( (Drawable)stuff->drawable, client, SecurityReadAccess))) { return BadValue; } if (!DRIGetDrawableInfo( screenInfo.screens[stuff->screen], pDrawable, (unsigned int*)&rep.drawableTableIndex, (unsigned int*)&rep.drawableTableStamp, (int*)&X, (int*)&Y, (int*)&W, (int*)&H, (int*)&rep.numClipRects, &pClipRects, &backX, &backY, (int*)&rep.numBackClipRects, &pBackClipRects)) { return BadValue; } rep.drawableX = X; rep.drawableY = Y; rep.drawableWidth = W; rep.drawableHeight = H; rep.length = (SIZEOF(xXF86DRIGetDrawableInfoReply) - SIZEOF(xGenericReply)); rep.backX = backX; rep.backY = backY; if (rep.numBackClipRects) rep.length += sizeof(drm_clip_rect_t) * rep.numBackClipRects; if (rep.numClipRects) rep.length += sizeof(drm_clip_rect_t) * rep.numClipRects; rep.length = ((rep.length + 3) & ~3) >> 2; WriteToClient(client, sizeof(xXF86DRIGetDrawableInfoReply), (char *)&rep); if (rep.numClipRects) { WriteToClient(client, sizeof(drm_clip_rect_t) * rep.numClipRects, (char *)pClipRects); } if (rep.numBackClipRects) { WriteToClient(client, sizeof(drm_clip_rect_t) * rep.numBackClipRects, (char *)pBackClipRects); } return (client->noClientException); }