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a09e091a JB |
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 | |
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 | cx = __glXLookupContextByTag(cl, tag); | |
50 | ||
51 | if ((cx == NULL) || (cx->pGlxScreen == NULL)) { | |
52 | client->errorValue = tag; | |
53 | return __glXError(GLXBadContext); | |
54 | } | |
55 | ||
56 | if (cx->pGlxScreen->swapInterval == NULL) { | |
57 | LogMessage(X_ERROR, "AIGLX: cx->pGlxScreen->swapInterval == NULL\n"); | |
58 | client->errorValue = tag; | |
59 | return __glXError(GLXUnsupportedPrivateRequest); | |
60 | } | |
61 | ||
62 | if (cx->drawPriv == NULL) { | |
63 | client->errorValue = tag; | |
64 | return BadValue; | |
65 | } | |
66 | ||
67 | pc += __GLX_VENDPRIV_HDR_SIZE; | |
68 | interval = (do_swap) | |
69 | ? bswap_32(*(int *) (pc + 0)) | |
70 | : *(int *) (pc + 0); | |
71 | ||
72 | if (interval <= 0) | |
73 | return BadValue; | |
74 | ||
75 | (void) (*cx->pGlxScreen->swapInterval) (cx->drawPriv, interval); | |
76 | return Success; | |
77 | } | |
78 | ||
79 | int | |
80 | __glXDisp_SwapIntervalSGI(__GLXclientState * cl, GLbyte * pc) | |
81 | { | |
82 | return DoSwapInterval(cl, pc, 0); | |
83 | } | |
84 | ||
85 | int | |
86 | __glXDispSwap_SwapIntervalSGI(__GLXclientState * cl, GLbyte * pc) | |
87 | { | |
88 | return DoSwapInterval(cl, pc, 1); | |
89 | } |