1 /*
2 * (C) Copyright IBM Corporation 2006
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
22 * USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25 #ifdef HAVE_DIX_CONFIG_H
26 #include <dix-config.h>
27 #endif
28
29 #include "glxserver.h"
30 #include "glxutil.h"
31 #include "glxext.h"
32 #include "singlesize.h"
33 #include "unpack.h"
34 #include "indirect_size_get.h"
35 #include "indirect_dispatch.h"
36 #include "glxbyteorder.h"
37
38 static int DoSwapInterval(__GLXclientState * cl, GLbyte * pc, int do_swap);
39
40 int
DoSwapInterval(__GLXclientState * cl,GLbyte * pc,int do_swap)41 DoSwapInterval(__GLXclientState * cl, GLbyte * pc, int do_swap)
42 {
43 xGLXVendorPrivateReq *const req = (xGLXVendorPrivateReq *) pc;
44 ClientPtr client = cl->client;
45 const GLXContextTag tag = req->contextTag;
46 __GLXcontext *cx;
47 GLint interval;
48
49 REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 4);
50
51 cx = __glXLookupContextByTag(cl, tag);
52
53 if ((cx == NULL) || (cx->pGlxScreen == NULL)) {
54 client->errorValue = tag;
55 return __glXError(GLXBadContext);
56 }
57
58 if (cx->pGlxScreen->swapInterval == NULL) {
59 LogMessage(X_ERROR, "AIGLX: cx->pGlxScreen->swapInterval == NULL\n");
60 client->errorValue = tag;
61 return __glXError(GLXUnsupportedPrivateRequest);
62 }
63
64 if (cx->drawPriv == NULL) {
65 client->errorValue = tag;
66 return BadValue;
67 }
68
69 pc += __GLX_VENDPRIV_HDR_SIZE;
70 interval = (do_swap)
71 ? bswap_32(*(int *) (pc + 0))
72 : *(int *) (pc + 0);
73
74 if (interval <= 0)
75 return BadValue;
76
77 (void) (*cx->pGlxScreen->swapInterval) (cx->drawPriv, interval);
78 return Success;
79 }
80
81 int
__glXDisp_SwapIntervalSGI(__GLXclientState * cl,GLbyte * pc)82 __glXDisp_SwapIntervalSGI(__GLXclientState * cl, GLbyte * pc)
83 {
84 return DoSwapInterval(cl, pc, 0);
85 }
86
87 int
__glXDispSwap_SwapIntervalSGI(__GLXclientState * cl,GLbyte * pc)88 __glXDispSwap_SwapIntervalSGI(__GLXclientState * cl, GLbyte * pc)
89 {
90 return DoSwapInterval(cl, pc, 1);
91 }
92