1 /*
2 * Copyright (c) 2016, NVIDIA CORPORATION.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and/or associated documentation files (the
6 * "Materials"), to deal in the Materials without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Materials, and to
9 * permit persons to whom the Materials are furnished to do so, subject to
10 * the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included
13 * unaltered in all copies or substantial portions of the Materials.
14 * Any additions, deletions, or changes to the original source files
15 * must be clearly indicated in accompanying documentation.
16 *
17 * If only executable code is distributed, then the accompanying
18 * documentation must state that "this software is based in part on the
19 * work of the Khronos Group."
20 *
21 * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
22 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
23 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
24 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
25 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
26 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
27 * MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
28 */
29
30 #include "vndservervendor.h"
31
32 struct xorg_list GlxVendorList = { &GlxVendorList, &GlxVendorList };
33
GlxCreateVendor(const GlxServerImports * imports)34 GlxServerVendor *GlxCreateVendor(const GlxServerImports *imports)
35 {
36 GlxServerVendor *vendor = NULL;
37
38 if (imports == NULL) {
39 ErrorF("GLX: Vendor library did not provide an imports table\n");
40 return NULL;
41 }
42
43 if (imports->extensionCloseDown == NULL
44 || imports->handleRequest == NULL
45 || imports->getDispatchAddress == NULL
46 || imports->makeCurrent == NULL) {
47 ErrorF("GLX: Vendor library is missing required callback functions.\n");
48 return NULL;
49 }
50
51 vendor = (GlxServerVendor *) calloc(1, sizeof(GlxServerVendor));
52 if (vendor == NULL) {
53 ErrorF("GLX: Can't allocate vendor library.\n");
54 return NULL;
55 }
56 memcpy(&vendor->glxvc, imports, sizeof(GlxServerImports));
57
58 xorg_list_append(&vendor->entry, &GlxVendorList);
59 return vendor;
60 }
61
GlxDestroyVendor(GlxServerVendor * vendor)62 void GlxDestroyVendor(GlxServerVendor *vendor)
63 {
64 if (vendor != NULL) {
65 xorg_list_del(&vendor->entry);
66 free(vendor);
67 }
68 }
69
GlxVendorExtensionReset(const ExtensionEntry * extEntry)70 void GlxVendorExtensionReset(const ExtensionEntry *extEntry)
71 {
72 GlxServerVendor *vendor, *tempVendor;
73
74 // TODO: Do we allow the driver to destroy a vendor library handle from
75 // here?
76 xorg_list_for_each_entry_safe(vendor, tempVendor, &GlxVendorList, entry) {
77 if (vendor->glxvc.extensionCloseDown != NULL) {
78 vendor->glxvc.extensionCloseDown(extEntry);
79 }
80 }
81
82 // If the server is exiting instead of starting a new generation, then
83 // free the remaining GlxServerVendor structs.
84 //
85 // XXX this used to be conditional on xf86ServerIsExiting, but it's
86 // cleaner to just always create the vendor struct on every generation,
87 // if nothing else so all ddxes get the same behavior.
88 xorg_list_for_each_entry_safe(vendor, tempVendor, &GlxVendorList, entry) {
89 GlxDestroyVendor(vendor);
90 }
91 }
92