aboutsummaryrefslogtreecommitdiff
path: root/nx-X11/programs/Xserver/Xext/EVI.c
blob: 93ed19fa6650fae02eab8d219a5522ded7140f58 (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
/* $Xorg: EVI.c,v 1.3 2000/08/17 19:47:55 cpqbld Exp $ */
/************************************************************
Copyright (c) 1997 by Silicon Graphics Computer Systems, Inc.
Permission to use, copy, modify, and distribute this
software and its documentation for any purpose and without
fee is hereby granted, provided that the above copyright
notice appear in all copies and that both that copyright
notice and this permission notice appear in supporting
documentation, and that the name of Silicon Graphics not be
used in advertising or publicity pertaining to distribution
of the software without specific prior written permission.
Silicon Graphics makes no representation about the suitability
of this software for any purpose. It is provided "as is"
without any express or implied warranty.
SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION  WITH
THE USE OR PERFORMANCE OF THIS SOFTWARE.
********************************************************/
/* $XFree86: xc/programs/Xserver/Xext/EVI.c,v 3.10tsi Exp $ */

#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif

#include <X11/X.h>
#include <X11/Xproto.h>
#include "dixstruct.h"
#include "extnsionst.h"
#include "dix.h"
#define _XEVI_SERVER_
#include <X11/extensions/XEVIstr.h>
#include "EVIstruct.h"
#include "modinit.h"
#include "scrnintstr.h"

#if 0
static unsigned char XEVIReqCode = 0;
#endif
static EviPrivPtr eviPriv;

static int
ProcEVIQueryVersion(ClientPtr client)
{
    /* REQUEST(xEVIQueryVersionReq); */
    xEVIQueryVersionReply rep;
    register int n;
    REQUEST_SIZE_MATCH (xEVIQueryVersionReq);
    rep.type = X_Reply;
    rep.length = 0;
    rep.sequenceNumber = client->sequence;
    rep.majorVersion = XEVI_MAJOR_VERSION;
    rep.minorVersion = XEVI_MAJOR_VERSION;
    if (client->swapped) {
    	swaps(&rep.sequenceNumber, n);
    	swapl(&rep.length, n);
	swaps(&rep.majorVersion, n);
	swaps(&rep.minorVersion, n);
    }
    WriteToClient(client, sizeof (xEVIQueryVersionReply), (char *)&rep);
    return (client->noClientException);
}
#define swapEviInfo(eviInfo, l)				\
{							\
   int l1 = l; 						\
   xExtendedVisualInfo *eviInfo1 = eviInfo;		\
   while (l1-- > 0) {					\
       swapl(&eviInfo1->core_visual_id, n);		\
       swapl(&eviInfo1->transparency_value, n);		\
       swaps(&eviInfo1->num_colormap_conflicts, n);	\
       eviInfo1++;					\
   }							\
}
#define swapVisual(visual, l)				\
{							\
    int l1 = l;						\
    VisualID32 *visual1 = visual;				\
    while (l1-- > 0) {					\
       swapl(visual1, n);				\
       visual1++;					\
    }							\
}

static int
ProcEVIGetVisualInfo(ClientPtr client)
{
    REQUEST(xEVIGetVisualInfoReq);
    xEVIGetVisualInfoReply rep;
    int i, n, n_conflict, n_info, sz_info, sz_conflict;
    VisualID32 *conflict;
    unsigned int total_visuals = 0;
    xExtendedVisualInfo *eviInfo;
    int status;

    /*
     * do this first, otherwise REQUEST_FIXED_SIZE can overflow.  we assume
     * here that you don't have more than 2^32 visuals over all your screens;
     * this seems like a safe assumption.
     */
    for (i = 0; i < screenInfo.numScreens; i++)
	total_visuals += screenInfo.screens[i]->numVisuals;
    if (stuff->n_visual > total_visuals)
	return BadValue;

    REQUEST_FIXED_SIZE(xEVIGetVisualInfoReq, stuff->n_visual * sz_VisualID32);
    status = eviPriv->getVisualInfo((VisualID32 *)&stuff[1], (int)stuff->n_visual,
		&eviInfo, &n_info, &conflict, &n_conflict);
    if (status != Success)
	return status;
    sz_info = n_info * sz_xExtendedVisualInfo;
    sz_conflict = n_conflict * sz_VisualID32;
    rep.type = X_Reply;
    rep.n_info = n_info;
    rep.n_conflicts = n_conflict;
    rep.sequenceNumber = client->sequence;
    rep.length = (sz_info + sz_conflict) >> 2;
    if (client->swapped) {
    	swaps(&rep.sequenceNumber, n);
    	swapl(&rep.length, n);
    	swapl(&rep.n_info, n);
    	swapl(&rep.n_conflicts, n);
	swapEviInfo(eviInfo, n_info);
	swapVisual(conflict, n_conflict);
    }
    WriteToClient(client, sz_xEVIGetVisualInfoReply, (char *)&rep);
    WriteToClient(client, sz_info, (char *)eviInfo);
    WriteToClient(client, sz_conflict, (char *)conflict);
    eviPriv->freeVisualInfo(eviInfo, conflict);
    return (client->noClientException);
}

static int
ProcEVIDispatch(ClientPtr client)
{
    REQUEST(xReq);
    switch (stuff->data) {
    case X_EVIQueryVersion:
	return ProcEVIQueryVersion (client);
    case X_EVIGetVisualInfo:
	return ProcEVIGetVisualInfo (client);
    default:
	return BadRequest;
    }
}

static int
SProcEVIQueryVersion(ClientPtr client)
{
   REQUEST(xEVIQueryVersionReq);
   int n;
   swaps(&stuff->length, n);
   return ProcEVIQueryVersion(client);
}

static int
SProcEVIGetVisualInfo(ClientPtr client)
{
    register int n;
    REQUEST(xEVIGetVisualInfoReq);
    swaps(&stuff->length, n);
    return ProcEVIGetVisualInfo(client);
}

static int
SProcEVIDispatch(ClientPtr client)
{
    REQUEST(xReq);
    switch (stuff->data)
    {
    case X_EVIQueryVersion:
	return SProcEVIQueryVersion (client);
    case X_EVIGetVisualInfo:
	return SProcEVIGetVisualInfo (client);
    default:
	return BadRequest;
    }
}

/*ARGSUSED*/
static void
EVIResetProc(ExtensionEntry *extEntry)
{
    eviDDXReset();
}

/****************
 * XEVIExtensionInit
 *
 * Called from InitExtensions in main() or from QueryExtension() if the
 * extension is dynamically loaded.
 *
 ****************/
void
EVIExtensionInit(INITARGS)
{
#if 0
    ExtensionEntry *extEntry;

    if ((extEntry = AddExtension(EVINAME, 0, 0,
				ProcEVIDispatch,
				SProcEVIDispatch,
				EVIResetProc, StandardMinorOpcode))) {
	XEVIReqCode = (unsigned char)extEntry->base;
#else
    if (AddExtension(EVINAME, 0, 0,
		     ProcEVIDispatch, SProcEVIDispatch,
		     EVIResetProc, StandardMinorOpcode)) {
#endif
	eviPriv = eviDDXInit();
    }
}