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 #ifndef VNDSERVER_H
31 #define VNDSERVER_H
32
33 #include <dix-config.h>
34 #include "glxvndabi.h"
35
36 #define GLXContextID CARD32
37 #define GLXDrawable CARD32
38
39 #if defined(__cplusplus)
40 extern "C" {
41 #endif
42
43 typedef struct GlxScreenPrivRec {
44 GlxServerVendor *vendor;
45 } GlxScreenPriv;
46
47 typedef struct GlxContextTagInfoRec {
48 GLXContextTag tag;
49 ClientPtr client;
50 GlxServerVendor *vendor;
51 void *data;
52 GLXContextID context;
53 GLXDrawable drawable;
54 GLXDrawable readdrawable;
55 } GlxContextTagInfo;
56
57 typedef struct GlxClientPrivRec {
58 GlxContextTagInfo *contextTags;
59 unsigned int contextTagCount;
60
61 /**
62 * The vendor handles for each screen.
63 */
64 GlxServerVendor **vendors;
65 } GlxClientPriv;
66
67 extern int GlxErrorBase;
68 extern RESTYPE idResource;
69
70 extern ExtensionEntry *GlxExtensionEntry;
71 Bool GlxDispatchInit(void);
72 void GlxDispatchReset(void);
73
74 /**
75 * Handles a request from the client.
76 *
77 * This function will look up the correct handler function and forward the
78 * request to it.
79 */
80 int GlxDispatchRequest(ClientPtr client);
81
82 /**
83 * Looks up the GlxClientPriv struct for a client. If we don't have a
84 * GlxClientPriv struct yet, then allocate one.
85 */
86 GlxClientPriv *GlxGetClientData(ClientPtr client);
87
88 /**
89 * Frees any data that's specific to a client. This should be called when a
90 * client disconnects.
91 */
92 void GlxFreeClientData(ClientPtr client);
93
94 Bool GlxAddXIDMap(XID id, GlxServerVendor *vendor);
95 GlxServerVendor * GlxGetXIDMap(XID id);
96 void GlxRemoveXIDMap(XID id);
97
98 /**
99 * Records the client that sent the current request. This is needed in
100 * GlxGetXIDMap to know which client's (screen -> vendor) mapping to use for a
101 * regular X window.
102 */
103 void GlxSetRequestClient(ClientPtr client);
104
105 GlxContextTagInfo *GlxAllocContextTag(ClientPtr client, GlxServerVendor *vendor);
106 GlxContextTagInfo *GlxLookupContextTag(ClientPtr client, GLXContextTag tag);
107 void GlxFreeContextTag(GlxContextTagInfo *tagInfo);
108
109 Bool GlxSetScreenVendor(ScreenPtr screen, GlxServerVendor *vendor);
110 Bool GlxSetClientScreenVendor(ClientPtr client, ScreenPtr screen, GlxServerVendor *vendor);
111 GlxScreenPriv *GlxGetScreen(ScreenPtr pScreen);
112 GlxServerVendor *GlxGetVendorForScreen(ClientPtr client, ScreenPtr screen);
113
GlxCheckSwap(ClientPtr client,CARD32 value)114 static inline CARD32 GlxCheckSwap(ClientPtr client, CARD32 value)
115 {
116 if (client->swapped)
117 {
118 value = ((value & 0XFF000000) >> 24) | ((value & 0X00FF0000) >> 8)
119 | ((value & 0X0000FF00) << 8) | ((value & 0X000000FF) << 24);
120 }
121 return value;
122 }
123
124 #if defined(__cplusplus)
125 }
126 #endif
127
128 _X_EXPORT const GlxServerExports *glvndGetExports(void);
129
130 #endif // VNDSERVER_H
131