1 /*
2 * Copyright © 2008 Red Hat, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Soft-
6 * ware"), to deal in the Software without restriction, including without
7 * limitation the rights to use, copy, modify, merge, publish, distribute,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, provided that the above copyright
10 * notice(s) and this permission notice appear in all copies of the Soft-
11 * ware and that both the above copyright notice(s) and this permission
12 * notice appear in supporting documentation.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
16 * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY
17 * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN
18 * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE-
19 * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
20 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
21 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR-
22 * MANCE OF THIS SOFTWARE.
23 *
24 * Except as contained in this notice, the name of a copyright holder shall
25 * not be used in advertising or otherwise to promote the sale, use or
26 * other dealings in this Software without prior written authorization of
27 * the copyright holder.
28 *
29 * Authors:
30 * Kristian Høgsberg (krh@redhat.com)
31 */
32
33
34 #define NEED_REPLIES
35 #include <X11/Xlibint.h>
36 #include <X11/extensions/Xext.h>
37 #include <X11/extensions/extutil.h>
38 #include "xf86drm.h"
39 #include "va_dri2.h"
40 #include "va_dri2str.h"
41 #include "va_dri2tokens.h"
42
43 #ifndef DRI2DriverDRI
44 #define DRI2DriverDRI 0
45 #endif
46
47 static int
48 VA_DRI2Error(Display *dpy, xError *err, XExtCodes *codes, int *ret_code);
49
50 static char va_dri2ExtensionName[] = DRI2_NAME;
51 static XExtensionInfo _va_dri2_info_data;
52 static XExtensionInfo *va_dri2Info = &_va_dri2_info_data;
53 static XEXT_GENERATE_CLOSE_DISPLAY (VA_DRI2CloseDisplay, va_dri2Info)
54 static /* const */ XExtensionHooks va_dri2ExtensionHooks = {
55 NULL, /* create_gc */
56 NULL, /* copy_gc */
57 NULL, /* flush_gc */
58 NULL, /* free_gc */
59 NULL, /* create_font */
60 NULL, /* free_font */
61 VA_DRI2CloseDisplay, /* close_display */
62 NULL, /* wire_to_event */
63 NULL, /* event_to_wire */
64 VA_DRI2Error, /* error */
65 NULL, /* error_string */
66 };
67
68 static XEXT_GENERATE_FIND_DISPLAY (DRI2FindDisplay, va_dri2Info,
69 va_dri2ExtensionName,
70 &va_dri2ExtensionHooks,
71 0, NULL)
72
73 static int
VA_DRI2Error(Display * dpy,xError * err,XExtCodes * codes,int * ret_code)74 VA_DRI2Error(Display *dpy, xError *err, XExtCodes *codes, int *ret_code)
75 {
76 /*
77 * If the X drawable was destroyed before the VA drawable, the DRI2 drawable
78 * will be gone by the time we call VA_DRI2DestroyDrawable(). So, simply
79 * ignore BadDrawable errors in that case.
80 */
81 if (err->majorCode == codes->major_opcode &&
82 err->errorCode == BadDrawable &&
83 err->minorCode == X_DRI2DestroyDrawable)
84 return True;
85
86 return False;
87 }
88
VA_DRI2QueryExtension(Display * dpy,int * eventBase,int * errorBase)89 Bool VA_DRI2QueryExtension(Display *dpy, int *eventBase, int *errorBase)
90 {
91 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
92
93 if (XextHasExtension(info)) {
94 *eventBase = info->codes->first_event;
95 *errorBase = info->codes->first_error;
96 return True;
97 }
98
99 return False;
100 }
101
VA_DRI2QueryVersion(Display * dpy,int * major,int * minor)102 Bool VA_DRI2QueryVersion(Display *dpy, int *major, int *minor)
103 {
104 XExtDisplayInfo *info = DRI2FindDisplay (dpy);
105 xDRI2QueryVersionReply rep;
106 xDRI2QueryVersionReq *req;
107
108 XextCheckExtension (dpy, info, va_dri2ExtensionName, False);
109
110 LockDisplay(dpy);
111 GetReq(DRI2QueryVersion, req);
112 req->reqType = info->codes->major_opcode;
113 req->dri2ReqType = X_DRI2QueryVersion;
114 req->majorVersion = DRI2_MAJOR;
115 req->minorVersion = DRI2_MINOR;
116 if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
117 UnlockDisplay(dpy);
118 SyncHandle();
119 return False;
120 }
121 *major = rep.majorVersion;
122 *minor = rep.minorVersion;
123 UnlockDisplay(dpy);
124 SyncHandle();
125
126 return True;
127 }
128
VA_DRI2Connect(Display * dpy,XID window,char ** driverName,char ** deviceName)129 Bool VA_DRI2Connect(Display *dpy, XID window,
130 char **driverName, char **deviceName)
131 {
132 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
133 xDRI2ConnectReply rep;
134 xDRI2ConnectReq *req;
135
136 XextCheckExtension (dpy, info, va_dri2ExtensionName, False);
137
138 LockDisplay(dpy);
139 GetReq(DRI2Connect, req);
140 req->reqType = info->codes->major_opcode;
141 req->dri2ReqType = X_DRI2Connect;
142 req->window = window;
143 req->driverType = DRI2DriverDRI;
144 if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
145 UnlockDisplay(dpy);
146 SyncHandle();
147 return False;
148 }
149
150 if (rep.driverNameLength == 0 && rep.deviceNameLength == 0) {
151 UnlockDisplay(dpy);
152 SyncHandle();
153 return False;
154 }
155
156 *driverName = Xmalloc(rep.driverNameLength + 1);
157 if (*driverName == NULL) {
158 _XEatData(dpy,
159 ((rep.driverNameLength + 3) & ~3) +
160 ((rep.deviceNameLength + 3) & ~3));
161 UnlockDisplay(dpy);
162 SyncHandle();
163 return False;
164 }
165 _XReadPad(dpy, *driverName, rep.driverNameLength);
166 (*driverName)[rep.driverNameLength] = '\0';
167
168 *deviceName = Xmalloc(rep.deviceNameLength + 1);
169 if (*deviceName == NULL) {
170 Xfree(*driverName);
171 _XEatData(dpy, ((rep.deviceNameLength + 3) & ~3));
172 UnlockDisplay(dpy);
173 SyncHandle();
174 return False;
175 }
176 _XReadPad(dpy, *deviceName, rep.deviceNameLength);
177 (*deviceName)[rep.deviceNameLength] = '\0';
178
179 UnlockDisplay(dpy);
180 SyncHandle();
181
182 return True;
183 }
184
VA_DRI2Authenticate(Display * dpy,XID window,drm_magic_t magic)185 Bool VA_DRI2Authenticate(Display *dpy, XID window, drm_magic_t magic)
186 {
187 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
188 xDRI2AuthenticateReq *req;
189 xDRI2AuthenticateReply rep;
190
191 XextCheckExtension (dpy, info, va_dri2ExtensionName, False);
192
193 LockDisplay(dpy);
194 GetReq(DRI2Authenticate, req);
195 req->reqType = info->codes->major_opcode;
196 req->dri2ReqType = X_DRI2Authenticate;
197 req->window = window;
198 req->magic = magic;
199
200 if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
201 UnlockDisplay(dpy);
202 SyncHandle();
203 return False;
204 }
205
206 UnlockDisplay(dpy);
207 SyncHandle();
208
209 return rep.authenticated;
210 }
211
VA_DRI2CreateDrawable(Display * dpy,XID drawable)212 void VA_DRI2CreateDrawable(Display *dpy, XID drawable)
213 {
214 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
215 xDRI2CreateDrawableReq *req;
216
217 XextSimpleCheckExtension (dpy, info, va_dri2ExtensionName);
218
219 LockDisplay(dpy);
220 GetReq(DRI2CreateDrawable, req);
221 req->reqType = info->codes->major_opcode;
222 req->dri2ReqType = X_DRI2CreateDrawable;
223 req->drawable = drawable;
224 UnlockDisplay(dpy);
225 SyncHandle();
226 }
227
VA_DRI2DestroyDrawable(Display * dpy,XID drawable)228 void VA_DRI2DestroyDrawable(Display *dpy, XID drawable)
229 {
230 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
231 xDRI2DestroyDrawableReq *req;
232
233 XextSimpleCheckExtension (dpy, info, va_dri2ExtensionName);
234
235 XSync(dpy, False);
236
237 LockDisplay(dpy);
238 GetReq(DRI2DestroyDrawable, req);
239 req->reqType = info->codes->major_opcode;
240 req->dri2ReqType = X_DRI2DestroyDrawable;
241 req->drawable = drawable;
242 UnlockDisplay(dpy);
243 SyncHandle();
244 }
245
VA_DRI2GetBuffers(Display * dpy,XID drawable,int * width,int * height,unsigned int * attachments,int count,int * outCount)246 VA_DRI2Buffer *VA_DRI2GetBuffers(Display *dpy, XID drawable,
247 int *width, int *height,
248 unsigned int *attachments, int count,
249 int *outCount)
250 {
251 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
252 xDRI2GetBuffersReply rep;
253 xDRI2GetBuffersReq *req;
254 VA_DRI2Buffer *buffers;
255 xDRI2Buffer repBuffer;
256 CARD32 *p;
257 int i;
258
259 XextCheckExtension (dpy, info, va_dri2ExtensionName, False);
260
261 LockDisplay(dpy);
262 GetReqExtra(DRI2GetBuffers, count * 4, req);
263 req->reqType = info->codes->major_opcode;
264 req->dri2ReqType = X_DRI2GetBuffers;
265 req->drawable = drawable;
266 req->count = count;
267 p = (CARD32 *) &req[1];
268 for (i = 0; i < count; i++)
269 p[i] = attachments[i];
270
271 if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
272 UnlockDisplay(dpy);
273 SyncHandle();
274 return NULL;
275 }
276
277 *width = rep.width;
278 *height = rep.height;
279 *outCount = rep.count;
280
281 buffers = Xmalloc(rep.count * sizeof buffers[0]);
282 if (buffers == NULL) {
283 _XEatData(dpy, rep.count * sizeof repBuffer);
284 UnlockDisplay(dpy);
285 SyncHandle();
286 return NULL;
287 }
288
289 for (i = 0; i < rep.count; i++) {
290 _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
291 buffers[i].attachment = repBuffer.attachment;
292 buffers[i].name = repBuffer.name;
293 buffers[i].pitch = repBuffer.pitch;
294 buffers[i].cpp = repBuffer.cpp;
295 buffers[i].flags = repBuffer.flags;
296 }
297
298 UnlockDisplay(dpy);
299 SyncHandle();
300
301 return buffers;
302 }
303
VA_DRI2CopyRegion(Display * dpy,XID drawable,XserverRegion region,CARD32 dest,CARD32 src)304 void VA_DRI2CopyRegion(Display *dpy, XID drawable, XserverRegion region,
305 CARD32 dest, CARD32 src)
306 {
307 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
308 xDRI2CopyRegionReq *req;
309 xDRI2CopyRegionReply rep;
310
311 XextSimpleCheckExtension (dpy, info, va_dri2ExtensionName);
312
313 LockDisplay(dpy);
314 GetReq(DRI2CopyRegion, req);
315 req->reqType = info->codes->major_opcode;
316 req->dri2ReqType = X_DRI2CopyRegion;
317 req->drawable = drawable;
318 req->region = region;
319 req->dest = dest;
320 req->src = src;
321
322 _XReply(dpy, (xReply *)&rep, 0, xFalse);
323
324 UnlockDisplay(dpy);
325 SyncHandle();
326 }
327
328 static void
load_swap_req(xDRI2SwapBuffersReq * req,CARD64 target,CARD64 divisor,CARD64 remainder)329 load_swap_req(xDRI2SwapBuffersReq *req, CARD64 target, CARD64 divisor,
330 CARD64 remainder)
331 {
332 req->target_msc_hi = target >> 32;
333 req->target_msc_lo = target & 0xffffffff;
334 req->divisor_hi = divisor >> 32;
335 req->divisor_lo = divisor & 0xffffffff;
336 req->remainder_hi = remainder >> 32;
337 req->remainder_lo = remainder & 0xffffffff;
338 }
339
340 static CARD64
vals_to_card64(CARD32 lo,CARD32 hi)341 vals_to_card64(CARD32 lo, CARD32 hi)
342 {
343 return (CARD64)hi << 32 | lo;
344 }
345
VA_DRI2SwapBuffers(Display * dpy,XID drawable,CARD64 target_msc,CARD64 divisor,CARD64 remainder,CARD64 * count)346 void VA_DRI2SwapBuffers(Display *dpy, XID drawable, CARD64 target_msc,
347 CARD64 divisor, CARD64 remainder, CARD64 *count)
348 {
349 XExtDisplayInfo *info = DRI2FindDisplay(dpy);
350 xDRI2SwapBuffersReq *req;
351 xDRI2SwapBuffersReply rep;
352
353 XextSimpleCheckExtension (dpy, info, va_dri2ExtensionName);
354
355 LockDisplay(dpy);
356 GetReq(DRI2SwapBuffers, req);
357 req->reqType = info->codes->major_opcode;
358 req->dri2ReqType = X_DRI2SwapBuffers;
359 req->drawable = drawable;
360 load_swap_req(req, target_msc, divisor, remainder);
361
362 _XReply(dpy, (xReply *)&rep, 0, xFalse);
363
364 *count = vals_to_card64(rep.swap_lo, rep.swap_hi);
365
366 UnlockDisplay(dpy);
367 SyncHandle();
368 }
369