| 1 | /* |
| 2 | * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved. |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice (including the next |
| 12 | * paragraph) shall be included in all copies or substantial portions of the |
| 13 | * Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 21 | * DEALINGS IN THE SOFTWARE. |
| 22 | * |
| 23 | * Copyright © 2003 Keith Packard |
| 24 | * |
| 25 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 26 | * documentation for any purpose is hereby granted without fee, provided that |
| 27 | * the above copyright notice appear in all copies and that both that |
| 28 | * copyright notice and this permission notice appear in supporting |
| 29 | * documentation, and that the name of Keith Packard not be used in |
| 30 | * advertising or publicity pertaining to distribution of the software without |
| 31 | * specific, written prior permission. Keith Packard makes no |
| 32 | * representations about the suitability of this software for any purpose. It |
| 33 | * is provided "as is" without express or implied warranty. |
| 34 | * |
| 35 | * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| 36 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| 37 | * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| 38 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| 39 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 40 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 41 | * PERFORMANCE OF THIS SOFTWARE. |
| 42 | */ |
| 43 | |
| 44 | #ifdef HAVE_DIX_CONFIG_H |
| 45 | #include <dix-config.h> |
| 46 | #endif |
| 47 | |
| 48 | #include "compint.h" |
| 49 | #include "xace.h" |
| 50 | |
| 51 | #ifdef PANORAMIX |
| 52 | #include "panoramiXsrv.h" |
| 53 | #endif |
| 54 | |
| 55 | /* |
| 56 | * Delete the given overlay client list element from its screen list. |
| 57 | */ |
| 58 | void |
| 59 | compFreeOverlayClient(CompOverlayClientPtr pOcToDel) |
| 60 | { |
| 61 | ScreenPtr pScreen = pOcToDel->pScreen; |
| 62 | CompScreenPtr cs = GetCompScreen(pScreen); |
| 63 | CompOverlayClientPtr *pPrev, pOc; |
| 64 | |
| 65 | for (pPrev = &cs->pOverlayClients; (pOc = *pPrev); pPrev = &pOc->pNext) { |
| 66 | if (pOc == pOcToDel) { |
| 67 | *pPrev = pOc->pNext; |
| 68 | free(pOc); |
| 69 | break; |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | /* Destroy overlay window when there are no more clients using it */ |
| 74 | if (cs->pOverlayClients == NULL) |
| 75 | compDestroyOverlayWindow(pScreen); |
| 76 | } |
| 77 | |
| 78 | /* |
| 79 | * Return the client's first overlay client rec from the given screen |
| 80 | */ |
| 81 | CompOverlayClientPtr |
| 82 | compFindOverlayClient(ScreenPtr pScreen, ClientPtr pClient) |
| 83 | { |
| 84 | CompScreenPtr cs = GetCompScreen(pScreen); |
| 85 | CompOverlayClientPtr pOc; |
| 86 | |
| 87 | for (pOc = cs->pOverlayClients; pOc != NULL; pOc = pOc->pNext) |
| 88 | if (pOc->pClient == pClient) |
| 89 | return pOc; |
| 90 | |
| 91 | return NULL; |
| 92 | } |
| 93 | |
| 94 | /* |
| 95 | * Create an overlay client object for the given client |
| 96 | */ |
| 97 | CompOverlayClientPtr |
| 98 | compCreateOverlayClient(ScreenPtr pScreen, ClientPtr pClient) |
| 99 | { |
| 100 | CompScreenPtr cs = GetCompScreen(pScreen); |
| 101 | CompOverlayClientPtr pOc; |
| 102 | |
| 103 | pOc = (CompOverlayClientPtr) malloc(sizeof(CompOverlayClientRec)); |
| 104 | if (pOc == NULL) |
| 105 | return NULL; |
| 106 | |
| 107 | pOc->pClient = pClient; |
| 108 | pOc->pScreen = pScreen; |
| 109 | pOc->resource = FakeClientID(pClient->index); |
| 110 | pOc->pNext = cs->pOverlayClients; |
| 111 | cs->pOverlayClients = pOc; |
| 112 | |
| 113 | /* |
| 114 | * Create a resource for this element so it can be deleted |
| 115 | * when the client goes away. |
| 116 | */ |
| 117 | if (!AddResource(pOc->resource, CompositeClientOverlayType, (pointer) pOc)) |
| 118 | return NULL; |
| 119 | |
| 120 | return pOc; |
| 121 | } |
| 122 | |
| 123 | /* |
| 124 | * Create the overlay window and map it |
| 125 | */ |
| 126 | Bool |
| 127 | compCreateOverlayWindow(ScreenPtr pScreen) |
| 128 | { |
| 129 | CompScreenPtr cs = GetCompScreen(pScreen); |
| 130 | WindowPtr pRoot = pScreen->root; |
| 131 | WindowPtr pWin; |
| 132 | XID attrs[] = { None, TRUE }; /* backPixmap, overrideRedirect */ |
| 133 | int result; |
| 134 | int w = pScreen->width; |
| 135 | int h = pScreen->height; |
| 136 | int x = 0, y = 0; |
| 137 | |
| 138 | #ifdef PANORAMIX |
| 139 | if (!noPanoramiXExtension) { |
| 140 | x = -pScreen->x; |
| 141 | y = -pScreen->y; |
| 142 | w = PanoramiXPixWidth; |
| 143 | h = PanoramiXPixHeight; |
| 144 | } |
| 145 | #endif |
| 146 | |
| 147 | pWin = cs->pOverlayWin = |
| 148 | CreateWindow(cs->overlayWid, pRoot, x, y, w, h, 0, |
| 149 | InputOutput, CWBackPixmap | CWOverrideRedirect, &attrs[0], |
| 150 | pRoot->drawable.depth, |
| 151 | serverClient, pScreen->rootVisual, &result); |
| 152 | if (pWin == NULL) |
| 153 | return FALSE; |
| 154 | |
| 155 | if (!AddResource(pWin->drawable.id, RT_WINDOW, (pointer) pWin)) |
| 156 | return FALSE; |
| 157 | |
| 158 | MapWindow(pWin, serverClient); |
| 159 | |
| 160 | return TRUE; |
| 161 | } |
| 162 | |
| 163 | /* |
| 164 | * Destroy the overlay window |
| 165 | */ |
| 166 | void |
| 167 | compDestroyOverlayWindow(ScreenPtr pScreen) |
| 168 | { |
| 169 | CompScreenPtr cs = GetCompScreen(pScreen); |
| 170 | |
| 171 | cs->pOverlayWin = NullWindow; |
| 172 | FreeResource(cs->overlayWid, RT_NONE); |
| 173 | } |