summaryrefslogtreecommitdiff
path: root/hw/darwin/quartz/xpr/appledri.c
blob: 0eba61cb2ee57dcbc2148c3df9d47b0743d1fb47 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
/* $XFree86: xc/programs/Xserver/GL/dri/xf86dri.c,v 1.10 2000/12/07 20:26:14 dawes Exp $ */
/**************************************************************************

Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
Copyright 2000 VA Linux Systems, Inc.
Copyright (c) 2002 Apple Computer, Inc.
All Rights Reserved.

Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sub license, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice (including the
next paragraph) shall be included in all copies or substantial portions
of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

**************************************************************************/

/*
 * Authors:
 *   Kevin E. Martin <martin@valinux.com>
 *   Jens Owen <jens@valinux.com>
 *   Rickard E. (Rik) Faith <faith@valinux.com>
 *
 */

#define NEED_REPLIES
#define NEED_EVENTS
#include "X.h"
#include "Xproto.h"
#include "misc.h"
#include "dixstruct.h"
#include "extnsionst.h"
#include "colormapst.h"
#include "cursorstr.h"
#include "scrnintstr.h"
#include "servermd.h"
#define _APPLEDRI_SERVER_
#include "appledristr.h"
#include "swaprep.h"
#include "dri.h"
#include "dristruct.h"

static int DRIErrorBase = 0;

static DISPATCH_PROC(ProcAppleDRIDispatch);
static DISPATCH_PROC(SProcAppleDRIDispatch);

static void AppleDRIResetProc(ExtensionEntry* extEntry);

static unsigned char DRIReqCode = 0;
static int DRIEventBase = 0;

static void SNotifyEvent(xAppleDRINotifyEvent *from, xAppleDRINotifyEvent *to);

typedef struct _DRIEvent *DRIEventPtr;
typedef struct _DRIEvent {
    DRIEventPtr     next;
    ClientPtr       client;
    XID             clientResource;
    unsigned int    mask;
} DRIEventRec;


void
AppleDRIExtensionInit(void)
{
    ExtensionEntry* extEntry;

    if (DRIExtensionInit() &&
        (extEntry = AddExtension(APPLEDRINAME,
                                 AppleDRINumberEvents,
                                 AppleDRINumberErrors,
                                 ProcAppleDRIDispatch,
                                 SProcAppleDRIDispatch,
                                 AppleDRIResetProc,
                                 StandardMinorOpcode))) {
        DRIReqCode = (unsigned char)extEntry->base;
        DRIErrorBase = extEntry->errorBase;
        DRIEventBase = extEntry->eventBase;
        EventSwapVector[DRIEventBase] = (EventSwapPtr) SNotifyEvent;
    }
}

/*ARGSUSED*/
static void
AppleDRIResetProc (
    ExtensionEntry* extEntry
)
{
    DRIReset();
}

static int
ProcAppleDRIQueryVersion(
    register ClientPtr client
)
{
    xAppleDRIQueryVersionReply rep;
    register int n;

    REQUEST_SIZE_MATCH(xAppleDRIQueryVersionReq);
    rep.type = X_Reply;
    rep.length = 0;
    rep.sequenceNumber = client->sequence;
    rep.majorVersion = APPLE_DRI_MAJOR_VERSION;
    rep.minorVersion = APPLE_DRI_MINOR_VERSION;
    rep.patchVersion = APPLE_DRI_PATCH_VERSION;
    if (client->swapped) {
        swaps(&rep.sequenceNumber, n);
        swapl(&rep.length, n);
    }
    WriteToClient(client, sizeof(xAppleDRIQueryVersionReply), (char *)&rep);
    return (client->noClientException);
}


/* surfaces */

static int
ProcAppleDRIQueryDirectRenderingCapable(
    register ClientPtr client
)
{
    xAppleDRIQueryDirectRenderingCapableReply rep;
    Bool isCapable;

    REQUEST(xAppleDRIQueryDirectRenderingCapableReq);
    REQUEST_SIZE_MATCH(xAppleDRIQueryDirectRenderingCapableReq);
    rep.type = X_Reply;
    rep.length = 0;
    rep.sequenceNumber = client->sequence;

    if (!DRIQueryDirectRenderingCapable( screenInfo.screens[stuff->screen], 
                                         &isCapable)) {
        return BadValue;
    }
    rep.isCapable = isCapable;

    if (!LocalClient(client))
        rep.isCapable = 0;

    WriteToClient(client, 
        sizeof(xAppleDRIQueryDirectRenderingCapableReply), (char *)&rep);
    return (client->noClientException);
}

static int
ProcAppleDRIAuthConnection(
    register ClientPtr client
)
{
    xAppleDRIAuthConnectionReply rep;
    
    REQUEST(xAppleDRIAuthConnectionReq);
    REQUEST_SIZE_MATCH(xAppleDRIAuthConnectionReq);

    rep.type = X_Reply;
    rep.length = 0;
    rep.sequenceNumber = client->sequence;
    rep.authenticated = 1;

    if (!DRIAuthConnection( screenInfo.screens[stuff->screen], stuff->magic)) {
        ErrorF("Failed to authenticate %u\n", stuff->magic);
        rep.authenticated = 0;
    }
    WriteToClient(client, sizeof(xAppleDRIAuthConnectionReply), (char *)&rep);
    return (client->noClientException);
}

static void surface_notify(
    void *_arg,
    void *data
)
{
    DRISurfaceNotifyArg *arg = _arg;
    int client_index = (int) data;
    ClientPtr client;
    xAppleDRINotifyEvent se;

    if (client_index < 0 || client_index >= currentMaxClients)
        return;

    client = clients[client_index];
    if (client == NULL || client == serverClient || client->clientGone)
        return;

    se.type = DRIEventBase + AppleDRISurfaceNotify;
    se.kind = arg->kind;
    se.arg = arg->id;
    se.sequenceNumber = client->sequence;
    se.time = currentTime.milliseconds;
    WriteEventsToClient (client, 1, (xEvent *) &se);
}

static int
ProcAppleDRICreateSurface(
    ClientPtr client
)
{
    xAppleDRICreateSurfaceReply rep;
    DrawablePtr pDrawable;
    xp_surface_id sid;
    unsigned int key[2];

    REQUEST(xAppleDRICreateSurfaceReq);
    REQUEST_SIZE_MATCH(xAppleDRICreateSurfaceReq);
    rep.type = X_Reply;
    rep.length = 0;
    rep.sequenceNumber = client->sequence;

    if (!(pDrawable = (DrawablePtr)SecurityLookupDrawable(
                                                (Drawable)stuff->drawable,
                                                client, 
                                                SecurityReadAccess))) {
        return BadValue;
    }

    rep.key_0 = rep.key_1 = rep.uid = 0;

    if (!DRICreateSurface( screenInfo.screens[stuff->screen],
                           (Drawable)stuff->drawable, pDrawable,
                           stuff->client_id, &sid, key,
                           surface_notify, (void *) client->index)) {
        return BadValue;
    }

    rep.key_0 = key[0];
    rep.key_1 = key[1];
    rep.uid = sid;

    WriteToClient(client, sizeof(xAppleDRICreateSurfaceReply), (char *)&rep);
    return (client->noClientException);
}

static int
ProcAppleDRIDestroySurface(
    register ClientPtr client
)
{
    REQUEST(xAppleDRIDestroySurfaceReq);
    DrawablePtr pDrawable;
    REQUEST_SIZE_MATCH(xAppleDRIDestroySurfaceReq);

    if (!(pDrawable = (DrawablePtr)SecurityLookupDrawable(
                                                (Drawable)stuff->drawable,
                                                client, 
                                                SecurityReadAccess))) {
        return BadValue;
    }

    if (!DRIDestroySurface( screenInfo.screens[stuff->screen], 
                            (Drawable)stuff->drawable,
                            pDrawable, NULL, NULL)) {
        return BadValue;
    }

    return (client->noClientException);
}


/* dispatch */

static int
ProcAppleDRIDispatch (
    register ClientPtr client
)
{
    REQUEST(xReq);

    switch (stuff->data)
    {
    case X_AppleDRIQueryVersion:
        return ProcAppleDRIQueryVersion(client);
    case X_AppleDRIQueryDirectRenderingCapable:
        return ProcAppleDRIQueryDirectRenderingCapable(client);
    }

    if (!LocalClient(client))
        return DRIErrorBase + AppleDRIClientNotLocal;

    switch (stuff->data)
    {
    case X_AppleDRIAuthConnection:
        return ProcAppleDRIAuthConnection(client);
    case X_AppleDRICreateSurface:
        return ProcAppleDRICreateSurface(client);
    case X_AppleDRIDestroySurface:
        return ProcAppleDRIDestroySurface(client);
    default:
        return BadRequest;
    }
}

static void
SNotifyEvent(
    xAppleDRINotifyEvent *from,
    xAppleDRINotifyEvent *to
)
{
    to->type = from->type;
    to->kind = from->kind;
    cpswaps (from->sequenceNumber, to->sequenceNumber);
    cpswapl (from->time, to->time);
    cpswapl (from->arg, to->arg);
}

static int
SProcAppleDRIQueryVersion(
    register ClientPtr client
)
{
    register int n;
    REQUEST(xAppleDRIQueryVersionReq);
    swaps(&stuff->length, n);
    return ProcAppleDRIQueryVersion(client);
}

static int
SProcAppleDRIDispatch (
    register ClientPtr client
)
{
    REQUEST(xReq);

    /* It is bound to be non-local when there is byte swapping */
    if (!LocalClient(client))
        return DRIErrorBase + AppleDRIClientNotLocal;

    /* only local clients are allowed DRI access */
    switch (stuff->data)
    {
    case X_AppleDRIQueryVersion:
        return SProcAppleDRIQueryVersion(client);
    default:
        return BadRequest;
    }
}