examodule.c (6743B)
1 /* 2 * Copyright © 2006 Intel Corporation 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 FROM, 20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 * SOFTWARE. 22 * 23 * Authors: 24 * Eric Anholt <anholt@FreeBSD.org> 25 * 26 */ 27 28 #ifdef HAVE_XORG_CONFIG_H 29 #include <xorg-config.h> 30 #endif 31 32 #include <string.h> 33 34 #include "exa_priv.h" 35 36 #include "xf86str.h" 37 #include "xf86.h" 38 39 typedef struct _ExaXorgScreenPrivRec { 40 CloseScreenProcPtr SavedCloseScreen; 41 xf86EnableDisableFBAccessProc *SavedEnableDisableFBAccess; 42 OptionInfoPtr options; 43 } ExaXorgScreenPrivRec, *ExaXorgScreenPrivPtr; 44 45 static DevPrivateKeyRec exaXorgScreenPrivateKeyRec; 46 47 #define exaXorgScreenPrivateKey (&exaXorgScreenPrivateKeyRec) 48 49 typedef enum { 50 EXAOPT_MIGRATION_HEURISTIC, 51 EXAOPT_NO_COMPOSITE, 52 EXAOPT_NO_UTS, 53 EXAOPT_NO_DFS, 54 EXAOPT_OPTIMIZE_MIGRATION 55 } EXAOpts; 56 57 static const OptionInfoRec EXAOptions[] = { 58 {EXAOPT_MIGRATION_HEURISTIC, "MigrationHeuristic", 59 OPTV_ANYSTR, {0}, FALSE}, 60 {EXAOPT_NO_COMPOSITE, "EXANoComposite", 61 OPTV_BOOLEAN, {0}, FALSE}, 62 {EXAOPT_NO_UTS, "EXANoUploadToScreen", 63 OPTV_BOOLEAN, {0}, FALSE}, 64 {EXAOPT_NO_DFS, "EXANoDownloadFromScreen", 65 OPTV_BOOLEAN, {0}, FALSE}, 66 {EXAOPT_OPTIMIZE_MIGRATION, "EXAOptimizeMigration", 67 OPTV_BOOLEAN, {0}, FALSE}, 68 {-1, NULL, 69 OPTV_NONE, {0}, FALSE} 70 }; 71 72 static Bool 73 exaXorgCloseScreen(ScreenPtr pScreen) 74 { 75 ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen); 76 ExaXorgScreenPrivPtr pScreenPriv = (ExaXorgScreenPrivPtr) 77 dixLookupPrivate(&pScreen->devPrivates, exaXorgScreenPrivateKey); 78 79 pScreen->CloseScreen = pScreenPriv->SavedCloseScreen; 80 81 pScrn->EnableDisableFBAccess = pScreenPriv->SavedEnableDisableFBAccess; 82 83 free(pScreenPriv->options); 84 free(pScreenPriv); 85 86 return pScreen->CloseScreen(pScreen); 87 } 88 89 static void 90 exaXorgEnableDisableFBAccess(ScrnInfoPtr pScrn, Bool enable) 91 { 92 ScreenPtr pScreen = xf86ScrnToScreen(pScrn); 93 ExaXorgScreenPrivPtr pScreenPriv = (ExaXorgScreenPrivPtr) 94 dixLookupPrivate(&pScreen->devPrivates, exaXorgScreenPrivateKey); 95 96 if (!enable) 97 exaEnableDisableFBAccess(pScreen, enable); 98 99 if (pScreenPriv->SavedEnableDisableFBAccess) 100 pScreenPriv->SavedEnableDisableFBAccess(pScrn, enable); 101 102 if (enable) 103 exaEnableDisableFBAccess(pScreen, enable); 104 } 105 106 /** 107 * This will be called during exaDriverInit, giving us the chance to set options 108 * and hook in our EnableDisableFBAccess. 109 */ 110 void 111 exaDDXDriverInit(ScreenPtr pScreen) 112 { 113 ExaScreenPriv(pScreen); 114 ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen); 115 ExaXorgScreenPrivPtr pScreenPriv; 116 117 if (!dixRegisterPrivateKey(&exaXorgScreenPrivateKeyRec, PRIVATE_SCREEN, 0)) 118 return; 119 120 pScreenPriv = calloc(1, sizeof(ExaXorgScreenPrivRec)); 121 if (pScreenPriv == NULL) 122 return; 123 124 pScreenPriv->options = xnfalloc(sizeof(EXAOptions)); 125 memcpy(pScreenPriv->options, EXAOptions, sizeof(EXAOptions)); 126 xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, pScreenPriv->options); 127 128 if (pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS) { 129 if (!(pExaScr->info->flags & EXA_HANDLES_PIXMAPS) && 130 pExaScr->info->offScreenBase < pExaScr->info->memorySize) { 131 const char *heuristicName; 132 133 heuristicName = xf86GetOptValString(pScreenPriv->options, 134 EXAOPT_MIGRATION_HEURISTIC); 135 if (heuristicName != NULL) { 136 if (strcmp(heuristicName, "greedy") == 0) 137 pExaScr->migration = ExaMigrationGreedy; 138 else if (strcmp(heuristicName, "always") == 0) 139 pExaScr->migration = ExaMigrationAlways; 140 else if (strcmp(heuristicName, "smart") == 0) 141 pExaScr->migration = ExaMigrationSmart; 142 else { 143 xf86DrvMsg(pScreen->myNum, X_WARNING, 144 "EXA: unknown migration heuristic %s\n", 145 heuristicName); 146 } 147 } 148 } 149 150 pExaScr->optimize_migration = 151 xf86ReturnOptValBool(pScreenPriv->options, 152 EXAOPT_OPTIMIZE_MIGRATION, TRUE); 153 } 154 155 if (xf86ReturnOptValBool(pScreenPriv->options, EXAOPT_NO_COMPOSITE, FALSE)) { 156 xf86DrvMsg(pScreen->myNum, X_CONFIG, 157 "EXA: Disabling Composite operation " 158 "(RENDER acceleration)\n"); 159 pExaScr->info->CheckComposite = NULL; 160 pExaScr->info->PrepareComposite = NULL; 161 } 162 163 if (xf86ReturnOptValBool(pScreenPriv->options, EXAOPT_NO_UTS, FALSE)) { 164 xf86DrvMsg(pScreen->myNum, X_CONFIG, "EXA: Disabling UploadToScreen\n"); 165 pExaScr->info->UploadToScreen = NULL; 166 } 167 168 if (xf86ReturnOptValBool(pScreenPriv->options, EXAOPT_NO_DFS, FALSE)) { 169 xf86DrvMsg(pScreen->myNum, X_CONFIG, 170 "EXA: Disabling DownloadFromScreen\n"); 171 pExaScr->info->DownloadFromScreen = NULL; 172 } 173 174 dixSetPrivate(&pScreen->devPrivates, exaXorgScreenPrivateKey, pScreenPriv); 175 176 pScreenPriv->SavedEnableDisableFBAccess = pScrn->EnableDisableFBAccess; 177 pScrn->EnableDisableFBAccess = exaXorgEnableDisableFBAccess; 178 179 pScreenPriv->SavedCloseScreen = pScreen->CloseScreen; 180 pScreen->CloseScreen = exaXorgCloseScreen; 181 182 } 183 184 static XF86ModuleVersionInfo exaVersRec = { 185 "exa", 186 MODULEVENDORSTRING, 187 MODINFOSTRING1, 188 MODINFOSTRING2, 189 XORG_VERSION_CURRENT, 190 EXA_VERSION_MAJOR, EXA_VERSION_MINOR, EXA_VERSION_RELEASE, 191 ABI_CLASS_VIDEODRV, /* requires the video driver ABI */ 192 ABI_VIDEODRV_VERSION, 193 MOD_CLASS_NONE, 194 {0, 0, 0, 0} 195 }; 196 197 _X_EXPORT XF86ModuleData exaModuleData = { &exaVersRec, NULL, NULL };