| 1 | /* |
| 2 | *Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved. |
| 3 | * |
| 4 | *Permission is hereby granted, free of charge, to any person obtaining |
| 5 | * a copy of this software and associated documentation files (the |
| 6 | *"Software"), to deal in the Software without restriction, including |
| 7 | *without limitation the rights to use, copy, modify, merge, publish, |
| 8 | *distribute, sublicense, and/or sell copies of the Software, and to |
| 9 | *permit persons to whom the Software is furnished to do so, subject to |
| 10 | *the following conditions: |
| 11 | * |
| 12 | *The above copyright notice and this permission notice shall be |
| 13 | *included in all copies or substantial portions of the Software. |
| 14 | * |
| 15 | *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 16 | *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 17 | *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 18 | *NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR |
| 19 | *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF |
| 20 | *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| 21 | *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 22 | * |
| 23 | *Except as contained in this notice, the name of the XFree86 Project |
| 24 | *shall not be used in advertising or otherwise to promote the sale, use |
| 25 | *or other dealings in this Software without prior written authorization |
| 26 | *from the XFree86 Project. |
| 27 | * |
| 28 | * Authors: Keith Packard, MIT X Consortium |
| 29 | * Harold L Hunt II |
| 30 | */ |
| 31 | |
| 32 | #ifdef HAVE_XWIN_CONFIG_H |
| 33 | #include <xwin-config.h> |
| 34 | #endif |
| 35 | #include "win.h" |
| 36 | |
| 37 | /* See Porting Layer Definition - p. 58 */ |
| 38 | /* |
| 39 | * Allocate indexes for the privates that we use. |
| 40 | * Allocate memory directly for the screen privates. |
| 41 | * Reserve space in GCs and Pixmaps for our privates. |
| 42 | * Colormap privates are handled in winAllocateCmapPrivates () |
| 43 | */ |
| 44 | |
| 45 | Bool |
| 46 | winAllocatePrivates(ScreenPtr pScreen) |
| 47 | { |
| 48 | winPrivScreenPtr pScreenPriv; |
| 49 | |
| 50 | #if CYGDEBUG |
| 51 | winDebug("winAllocateScreenPrivates - g_ulServerGeneration: %d " |
| 52 | "serverGeneration: %d\n", g_ulServerGeneration, serverGeneration); |
| 53 | #endif |
| 54 | |
| 55 | /* We need a new slot for our privates if the screen gen has changed */ |
| 56 | if (g_ulServerGeneration != serverGeneration) { |
| 57 | g_ulServerGeneration = serverGeneration; |
| 58 | } |
| 59 | |
| 60 | /* Allocate memory for the screen private structure */ |
| 61 | pScreenPriv = (winPrivScreenPtr) malloc(sizeof(winPrivScreenRec)); |
| 62 | if (!pScreenPriv) { |
| 63 | ErrorF("winAllocateScreenPrivates - malloc () failed\n"); |
| 64 | return FALSE; |
| 65 | } |
| 66 | |
| 67 | /* Initialize the memory of the private structure */ |
| 68 | ZeroMemory(pScreenPriv, sizeof(winPrivScreenRec)); |
| 69 | |
| 70 | /* Intialize private structure members */ |
| 71 | pScreenPriv->fActive = TRUE; |
| 72 | |
| 73 | /* Register our screen private */ |
| 74 | if (!dixRegisterPrivateKey(g_iScreenPrivateKey, PRIVATE_SCREEN, 0)) { |
| 75 | ErrorF("winAllocatePrivates - AllocateScreenPrivate () failed\n"); |
| 76 | return FALSE; |
| 77 | } |
| 78 | |
| 79 | /* Save the screen private pointer */ |
| 80 | winSetScreenPriv(pScreen, pScreenPriv); |
| 81 | |
| 82 | /* Reserve GC memory for our privates */ |
| 83 | if (!dixRegisterPrivateKey |
| 84 | (g_iGCPrivateKey, PRIVATE_GC, sizeof(winPrivGCRec))) { |
| 85 | ErrorF("winAllocatePrivates - AllocateGCPrivate () failed\n"); |
| 86 | return FALSE; |
| 87 | } |
| 88 | |
| 89 | /* Reserve Pixmap memory for our privates */ |
| 90 | if (!dixRegisterPrivateKey |
| 91 | (g_iPixmapPrivateKey, PRIVATE_PIXMAP, sizeof(winPrivPixmapRec))) { |
| 92 | ErrorF("winAllocatePrivates - AllocatePixmapPrivates () failed\n"); |
| 93 | return FALSE; |
| 94 | } |
| 95 | |
| 96 | /* Reserve Window memory for our privates */ |
| 97 | if (!dixRegisterPrivateKey |
| 98 | (g_iWindowPrivateKey, PRIVATE_WINDOW, sizeof(winPrivWinRec))) { |
| 99 | ErrorF("winAllocatePrivates () - AllocateWindowPrivates () failed\n"); |
| 100 | return FALSE; |
| 101 | } |
| 102 | |
| 103 | return TRUE; |
| 104 | } |
| 105 | |
| 106 | /* |
| 107 | * Colormap privates may be allocated after the default colormap has |
| 108 | * already been created for some screens. This initialization procedure |
| 109 | * is called for each default colormap that is found. |
| 110 | */ |
| 111 | |
| 112 | Bool |
| 113 | winInitCmapPrivates(ColormapPtr pcmap, int i) |
| 114 | { |
| 115 | #if CYGDEBUG |
| 116 | winDebug("winInitCmapPrivates\n"); |
| 117 | #endif |
| 118 | |
| 119 | /* |
| 120 | * I see no way that this function can do anything useful |
| 121 | * with only a ColormapPtr. We don't have the index for |
| 122 | * our dev privates yet, so we can't really initialize |
| 123 | * anything. Perhaps I am misunderstanding the purpose |
| 124 | * of this function. |
| 125 | */ |
| 126 | /* That's definitely true. |
| 127 | * I therefore changed the API and added the index as argument. |
| 128 | */ |
| 129 | return TRUE; |
| 130 | } |
| 131 | |
| 132 | /* |
| 133 | * Allocate memory for our colormap privates |
| 134 | */ |
| 135 | |
| 136 | Bool |
| 137 | winAllocateCmapPrivates(ColormapPtr pCmap) |
| 138 | { |
| 139 | winPrivCmapPtr pCmapPriv; |
| 140 | static unsigned long s_ulPrivateGeneration = 0; |
| 141 | |
| 142 | #if CYGDEBUG |
| 143 | winDebug("winAllocateCmapPrivates\n"); |
| 144 | #endif |
| 145 | |
| 146 | /* Get a new privates index when the server generation changes */ |
| 147 | if (s_ulPrivateGeneration != serverGeneration) { |
| 148 | /* Save the new server generation */ |
| 149 | s_ulPrivateGeneration = serverGeneration; |
| 150 | } |
| 151 | |
| 152 | /* Allocate memory for our private structure */ |
| 153 | pCmapPriv = (winPrivCmapPtr) malloc(sizeof(winPrivCmapRec)); |
| 154 | if (!pCmapPriv) { |
| 155 | ErrorF("winAllocateCmapPrivates - malloc () failed\n"); |
| 156 | return FALSE; |
| 157 | } |
| 158 | |
| 159 | /* Initialize the memory of the private structure */ |
| 160 | ZeroMemory(pCmapPriv, sizeof(winPrivCmapRec)); |
| 161 | |
| 162 | /* Register our colourmap private */ |
| 163 | if (!dixRegisterPrivateKey(g_iCmapPrivateKey, PRIVATE_COLORMAP, 0)) { |
| 164 | ErrorF("winAllocateCmapPrivates - AllocateCmapPrivate () failed\n"); |
| 165 | return FALSE; |
| 166 | } |
| 167 | |
| 168 | /* Save the cmap private pointer */ |
| 169 | winSetCmapPriv(pCmap, pCmapPriv); |
| 170 | |
| 171 | #if CYGDEBUG |
| 172 | winDebug("winAllocateCmapPrivates - Returning\n"); |
| 173 | #endif |
| 174 | |
| 175 | return TRUE; |
| 176 | } |