src/X11/va_dri2.c

   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 char va_dri2ExtensionName[] = DRI2_NAME;
  48 static XExtensionInfo _va_dri2_info_data;
  49 static XExtensionInfo *va_dri2Info = &_va_dri2_info_data;
  50 static XEXT_GENERATE_CLOSE_DISPLAY (VA_DRI2CloseDisplay, va_dri2Info)
  51 static /* const */ XExtensionHooks va_dri2ExtensionHooks = {
  52     NULL,                               /* create_gc */
  53     NULL,                               /* copy_gc */
  54     NULL,                               /* flush_gc */
  55     NULL,                               /* free_gc */
  56     NULL,                               /* create_font */
  57     NULL,                               /* free_font */
  58     VA_DRI2CloseDisplay,                /* close_display */
  59     NULL,                               /* wire_to_event */
  60     NULL,                               /* event_to_wire */
  61     NULL,                               /* error */
  62     NULL,                               /* error_string */
  63 };
  64
  65 static XEXT_GENERATE_FIND_DISPLAY (DRI2FindDisplay, va_dri2Info,
  66                                    va_dri2ExtensionName,
  67                                    &va_dri2ExtensionHooks,
  68                                    0, NULL)
  69
  70 Bool VA_DRI2QueryExtension(Display *dpy, int *eventBase, int *errorBase)
  71 {
  72     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
  73
  74     if (XextHasExtension(info)) {
  75         *eventBase = info->codes->first_event;
  76         *errorBase = info->codes->first_error;
  77         return True;
  78     }
  79
  80     return False;
  81 }
  82
  83 Bool VA_DRI2QueryVersion(Display *dpy, int *major, int *minor)
  84 {
  85     XExtDisplayInfo *info = DRI2FindDisplay (dpy);
  86     xDRI2QueryVersionReply rep;
  87     xDRI2QueryVersionReq *req;
  88
  89     XextCheckExtension (dpy, info, va_dri2ExtensionName, False);
  90
  91     LockDisplay(dpy);
  92     GetReq(DRI2QueryVersion, req);
  93     req->reqType = info->codes->major_opcode;
  94     req->dri2ReqType = X_DRI2QueryVersion;
  95     req->majorVersion = DRI2_MAJOR;
  96     req->minorVersion = DRI2_MINOR;
  97     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
  98         UnlockDisplay(dpy);
  99         SyncHandle();
 100         return False;
 101     }
 102     *major = rep.majorVersion;
 103     *minor = rep.minorVersion;
 104     UnlockDisplay(dpy);
 105     SyncHandle();
 106
 107     return True;
 108 }
 109
 110 Bool VA_DRI2Connect(Display *dpy, XID window,
 111                  char **driverName, char **deviceName)
 112 {
 113     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 114     xDRI2ConnectReply rep;
 115     xDRI2ConnectReq *req;
 116
 117     XextCheckExtension (dpy, info, va_dri2ExtensionName, False);
 118
 119     LockDisplay(dpy);
 120     GetReq(DRI2Connect, req);
 121     req->reqType = info->codes->major_opcode;
 122     req->dri2ReqType = X_DRI2Connect;
 123     req->window = window;
 124     req->driverType = DRI2DriverDRI;
 125     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 126         UnlockDisplay(dpy);
 127         SyncHandle();
 128         return False;
 129     }
 130
 131     if (rep.driverNameLength == 0 && rep.deviceNameLength == 0) {
 132         UnlockDisplay(dpy);
 133         SyncHandle();
 134         return False;
 135     }
 136
 137     *driverName = Xmalloc(rep.driverNameLength + 1);
 138     if (*driverName == NULL) {
 139         _XEatData(dpy,
 140                   ((rep.driverNameLength + 3) & ~3) +
 141                   ((rep.deviceNameLength + 3) & ~3));
 142         UnlockDisplay(dpy);
 143         SyncHandle();
 144         return False;
 145     }
 146     _XReadPad(dpy, *driverName, rep.driverNameLength);
 147     (*driverName)[rep.driverNameLength] = '\0';
 148
 149     *deviceName = Xmalloc(rep.deviceNameLength + 1);
 150     if (*deviceName == NULL) {
 151         Xfree(*driverName);
 152         _XEatData(dpy, ((rep.deviceNameLength + 3) & ~3));
 153         UnlockDisplay(dpy);
 154         SyncHandle();
 155         return False;
 156     }
 157     _XReadPad(dpy, *deviceName, rep.deviceNameLength);
 158     (*deviceName)[rep.deviceNameLength] = '\0';
 159
 160     UnlockDisplay(dpy);
 161     SyncHandle();
 162
 163     return True;
 164 }
 165
 166 Bool VA_DRI2Authenticate(Display *dpy, XID window, drm_magic_t magic)
 167 {
 168     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 169     xDRI2AuthenticateReq *req;
 170     xDRI2AuthenticateReply rep;
 171
 172     XextCheckExtension (dpy, info, va_dri2ExtensionName, False);
 173
 174     LockDisplay(dpy);
 175     GetReq(DRI2Authenticate, req);
 176     req->reqType = info->codes->major_opcode;
 177     req->dri2ReqType = X_DRI2Authenticate;
 178     req->window = window;
 179     req->magic = magic;
 180
 181     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 182         UnlockDisplay(dpy);
 183         SyncHandle();
 184         return False;
 185     }
 186
 187     UnlockDisplay(dpy);
 188     SyncHandle();
 189
 190     return rep.authenticated;
 191 }
 192
 193 void VA_DRI2CreateDrawable(Display *dpy, XID drawable)
 194 {
 195     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 196     xDRI2CreateDrawableReq *req;
 197
 198     XextSimpleCheckExtension (dpy, info, va_dri2ExtensionName);
 199
 200     LockDisplay(dpy);
 201     GetReq(DRI2CreateDrawable, req);
 202     req->reqType = info->codes->major_opcode;
 203     req->dri2ReqType = X_DRI2CreateDrawable;
 204     req->drawable = drawable;
 205     UnlockDisplay(dpy);
 206     SyncHandle();
 207 }
 208
 209 void VA_DRI2DestroyDrawable(Display *dpy, XID drawable)
 210 {
 211     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 212     xDRI2DestroyDrawableReq *req;
 213
 214     XextSimpleCheckExtension (dpy, info, va_dri2ExtensionName);
 215
 216     XSync(dpy, False);
 217
 218     LockDisplay(dpy);
 219     GetReq(DRI2DestroyDrawable, req);
 220     req->reqType = info->codes->major_opcode;
 221     req->dri2ReqType = X_DRI2DestroyDrawable;
 222     req->drawable = drawable;
 223     UnlockDisplay(dpy);
 224     SyncHandle();
 225 }
 226
 227 VA_DRI2Buffer *VA_DRI2GetBuffers(Display *dpy, XID drawable,
 228                            int *width, int *height,
 229                            unsigned int *attachments, int count,
 230                            int *outCount)
 231 {
 232     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 233     xDRI2GetBuffersReply rep;
 234     xDRI2GetBuffersReq *req;
 235     VA_DRI2Buffer *buffers;
 236     xDRI2Buffer repBuffer;
 237     CARD32 *p;
 238     int i;
 239
 240     XextCheckExtension (dpy, info, va_dri2ExtensionName, False);
 241
 242     LockDisplay(dpy);
 243     GetReqExtra(DRI2GetBuffers, count * 4, req);
 244     req->reqType = info->codes->major_opcode;
 245     req->dri2ReqType = X_DRI2GetBuffers;
 246     req->drawable = drawable;
 247     req->count = count;
 248     p = (CARD32 *) &req[1];
 249     for (i = 0; i < count; i++)
 250         p[i] = attachments[i];
 251
 252     if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
 253         UnlockDisplay(dpy);
 254         SyncHandle();
 255         return NULL;
 256     }
 257
 258     *width = rep.width;
 259     *height = rep.height;
 260     *outCount = rep.count;
 261
 262     buffers = Xmalloc(rep.count * sizeof buffers[0]);
 263     if (buffers == NULL) {
 264         _XEatData(dpy, rep.count * sizeof repBuffer);
 265         UnlockDisplay(dpy);
 266         SyncHandle();
 267         return NULL;
 268     }
 269
 270     for (i = 0; i < rep.count; i++) {
 271         _XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
 272         buffers[i].attachment = repBuffer.attachment;
 273         buffers[i].name = repBuffer.name;
 274         buffers[i].pitch = repBuffer.pitch;
 275         buffers[i].cpp = repBuffer.cpp;
 276         buffers[i].flags = repBuffer.flags;
 277     }
 278
 279     UnlockDisplay(dpy);
 280     SyncHandle();
 281
 282     return buffers;
 283 }
 284
 285 void VA_DRI2CopyRegion(Display *dpy, XID drawable, XserverRegion region,
 286                     CARD32 dest, CARD32 src)
 287 {
 288     XExtDisplayInfo *info = DRI2FindDisplay(dpy);
 289     xDRI2CopyRegionReq *req;
 290     xDRI2CopyRegionReply rep;
 291
 292     XextSimpleCheckExtension (dpy, info, va_dri2ExtensionName);
 293
 294     LockDisplay(dpy);
 295     GetReq(DRI2CopyRegion, req);
 296     req->reqType = info->codes->major_opcode;
 297     req->dri2ReqType = X_DRI2CopyRegion;
 298     req->drawable = drawable;
 299     req->region = region;
 300     req->dest = dest;
 301     req->src = src;
 302
 303     _XReply(dpy, (xReply *)&rep, 0, xFalse);
 304
 305     UnlockDisplay(dpy);
 306     SyncHandle();
 307 }