1 /*
2 * Copyright © 2014 Jon Turney
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 DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 /* THIS IS NOT AN X CONSORTIUM STANDARD */
25
26 #include <X11/Xlibint.h>
27 #include <X11/extensions/Xext.h>
28 #include <X11/extensions/extutil.h>
29 #include "windowsdristr.h"
30 #include "xwindowsdri.h"
31 #include <stdio.h>
32
33 static XExtensionInfo _windowsdri_info_data;
34 static XExtensionInfo *windowsdri_info = &_windowsdri_info_data;
35 static char *windowsdri_extension_name = WINDOWSDRINAME;
36
37 #define WindowsDRICheckExtension(dpy,i,val) \
38 XextCheckExtension (dpy, i, windowsdri_extension_name, val)
39
40 /*****************************************************************************
41 * *
42 * private utility routines *
43 * *
44 *****************************************************************************/
45
46 static int close_display(Display * dpy, XExtCodes * extCodes);
47
48 static /* const */ XExtensionHooks windowsdri_extension_hooks = {
49 NULL, /* create_gc */
50 NULL, /* copy_gc */
51 NULL, /* flush_gc */
52 NULL, /* free_gc */
53 NULL, /* create_font */
54 NULL, /* free_font */
55 close_display, /* close_display */
56 NULL, /* wire_to_event */
57 NULL, /* event_to_wire */
58 NULL, /* error */
59 NULL, /* error_string */
60 };
61
62 static
63 XEXT_GENERATE_FIND_DISPLAY(find_display, windowsdri_info,
64 windowsdri_extension_name,
65 &windowsdri_extension_hooks,
66 WindowsDRINumberEvents, NULL)
67
68 static
69 XEXT_GENERATE_CLOSE_DISPLAY(close_display, windowsdri_info)
70
71 /*****************************************************************************
72 * *
73 * public Windows-DRI Extension routines *
74 * *
75 *****************************************************************************/
76
77 #if 0
78 #include <stdio.h>
79 #define TRACE(msg, ...) fprintf(stderr, "WindowsDRI" msg "\n", ##__VA_ARGS__);
80 #else
81 #define TRACE(msg, ...)
82 #endif
83
84 Bool
85 XWindowsDRIQueryExtension(dpy, event_basep, error_basep)
86 Display *dpy;
87 int *event_basep, *error_basep;
88 {
89 XExtDisplayInfo *info = find_display(dpy);
90
91 TRACE("QueryExtension:");
92 if (XextHasExtension(info)) {
93 *event_basep = info->codes->first_event;
94 *error_basep = info->codes->first_error;
95 TRACE("QueryExtension: return True");
96 return True;
97 }
98 else {
99 TRACE("QueryExtension: return False");
100 return False;
101 }
102 }
103
104 Bool
XWindowsDRIQueryVersion(dpy,majorVersion,minorVersion,patchVersion)105 XWindowsDRIQueryVersion(dpy, majorVersion, minorVersion, patchVersion)
106 Display *dpy;
107 int *majorVersion;
108 int *minorVersion;
109 int *patchVersion;
110 {
111 XExtDisplayInfo *info = find_display(dpy);
112 xWindowsDRIQueryVersionReply rep;
113 xWindowsDRIQueryVersionReq *req;
114
115 TRACE("QueryVersion:");
116 WindowsDRICheckExtension(dpy, info, False);
117
118 LockDisplay(dpy);
119 GetReq(WindowsDRIQueryVersion, req);
120 req->reqType = info->codes->major_opcode;
121 req->driReqType = X_WindowsDRIQueryVersion;
122 if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
123 UnlockDisplay(dpy);
124 SyncHandle();
125 TRACE("QueryVersion: return False");
126 return False;
127 }
128 *majorVersion = rep.majorVersion;
129 *minorVersion = rep.minorVersion;
130 *patchVersion = rep.patchVersion;
131 UnlockDisplay(dpy);
132 SyncHandle();
133 TRACE("QueryVersion: %d.%d.%d", *majorVersion, *minorVersion, *patchVersion);
134 return True;
135 }
136
137 Bool
XWindowsDRIQueryDirectRenderingCapable(dpy,screen,isCapable)138 XWindowsDRIQueryDirectRenderingCapable(dpy, screen, isCapable)
139 Display *dpy;
140 int screen;
141 Bool *isCapable;
142 {
143 XExtDisplayInfo *info = find_display(dpy);
144 xWindowsDRIQueryDirectRenderingCapableReply rep;
145 xWindowsDRIQueryDirectRenderingCapableReq *req;
146
147 TRACE("QueryDirectRenderingCapable:");
148 WindowsDRICheckExtension(dpy, info, False);
149
150 LockDisplay(dpy);
151 GetReq(WindowsDRIQueryDirectRenderingCapable, req);
152 req->reqType = info->codes->major_opcode;
153 req->driReqType = X_WindowsDRIQueryDirectRenderingCapable;
154 req->screen = screen;
155 if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
156 UnlockDisplay(dpy);
157 SyncHandle();
158 TRACE("QueryDirectRenderingCapable: return False");
159 return False;
160 }
161 *isCapable = rep.isCapable;
162 UnlockDisplay(dpy);
163 SyncHandle();
164 TRACE("QueryDirectRenderingCapable:return True");
165 return True;
166 }
167
168 Bool
XWindowsDRIQueryDrawable(Display * dpy,int screen,Drawable drawable,unsigned int * type,void ** handle)169 XWindowsDRIQueryDrawable(Display *dpy, int screen, Drawable drawable,
170 unsigned int * type, void ** handle)
171 {
172 XExtDisplayInfo *info = find_display(dpy);
173 xWindowsDRIQueryDrawableReply rep;
174 xWindowsDRIQueryDrawableReq *req;
175
176 TRACE("QueryDrawable: XID %lx", drawable);
177 WindowsDRICheckExtension(dpy, info, False);
178
179 LockDisplay(dpy);
180 GetReq(WindowsDRIQueryDrawable, req);
181 req->reqType = info->codes->major_opcode;
182 req->driReqType = X_WindowsDRIQueryDrawable;
183 req->screen = screen;
184 req->drawable = drawable;
185
186 if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
187 UnlockDisplay(dpy);
188 SyncHandle();
189 TRACE("QueryDrawable: return False");
190 return False;
191 }
192
193 *type = rep.drawable_type;
194
195 // Note that despite being a derived type of void *, HANDLEs are defined to
196 // be a sign-extended 32 bit value (so they can be passed to 32-bit
197 // processes safely)
198 *handle = (void *)(intptr_t)rep.handle;
199
200 UnlockDisplay(dpy);
201 SyncHandle();
202 TRACE("QueryDrawable: type %d, handle %p", *type, *handle);
203 return True;
204 }
205
206 Bool
XWindowsDRIFBConfigToPixelFormat(Display * dpy,int screen,int fbConfigID,int * pxfi)207 XWindowsDRIFBConfigToPixelFormat(Display *dpy, int screen, int fbConfigID,
208 int *pxfi)
209 {
210 XExtDisplayInfo *info = find_display(dpy);
211 xWindowsDRIFBConfigToPixelFormatReply rep;
212 xWindowsDRIFBConfigToPixelFormatReq *req;
213
214 TRACE("FBConfigToPixelFormat: fbConfigID 0x%x", fbConfigID);
215 WindowsDRICheckExtension(dpy, info, False);
216
217 LockDisplay(dpy);
218 GetReq(WindowsDRIFBConfigToPixelFormat, req);
219 req->reqType = info->codes->major_opcode;
220 req->driReqType = X_WindowsDRIFBConfigToPixelFormat;
221 req->screen = screen;
222 req->fbConfigID = fbConfigID;
223
224 if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
225 UnlockDisplay(dpy);
226 SyncHandle();
227 TRACE("FBConfigToPixelFormat: return False");
228 return False;
229 }
230
231 *pxfi = rep.pixelFormatIndex;
232
233 UnlockDisplay(dpy);
234 SyncHandle();
235 TRACE("FBConfigToPixelFormat: pixelformatindex %d", *pxfi);
236 return True;
237 }
238