1 /*
2 * (C) Copyright IBM Corporation 2005, 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 * the rights to use, copy, modify, merge, publish, distribute, sub license,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * 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, THE AUTHORS, AND/OR THEIR SUPPLIERS BE LIABLE FOR
20 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
21 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
22 * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25 /**
26 * \file indirect_program.c
27 * Hand-coded routines needed to support programmable pipeline extensions.
28 *
29 * \author Ian Romanick <idr@us.ibm.com>
30 */
31
32 #ifdef HAVE_DIX_CONFIG_H
33 #include <dix-config.h>
34 #endif
35
36 #include "glxserver.h"
37 #include "glxbyteorder.h"
38 #include "glxext.h"
39 #include "singlesize.h"
40 #include "unpack.h"
41 #include "indirect_size_get.h"
42 #include "indirect_dispatch.h"
43
44 /**
45 * Handle both types of glGetProgramString calls.
46 */
47 static int
DoGetProgramString(struct __GLXclientStateRec * cl,GLbyte * pc,PFNGLGETPROGRAMIVARBPROC get_programiv,PFNGLGETPROGRAMSTRINGARBPROC get_program_string,Bool do_swap)48 DoGetProgramString(struct __GLXclientStateRec *cl, GLbyte * pc,
49 PFNGLGETPROGRAMIVARBPROC get_programiv,
50 PFNGLGETPROGRAMSTRINGARBPROC get_program_string,
51 Bool do_swap)
52 {
53 xGLXVendorPrivateWithReplyReq *const req =
54 (xGLXVendorPrivateWithReplyReq *) pc;
55 int error;
56 __GLXcontext *const cx = __glXForceCurrent(cl, req->contextTag, &error);
57 ClientPtr client = cl->client;
58
59 REQUEST_FIXED_SIZE(xGLXVendorPrivateWithReplyReq, 8);
60
61 pc += __GLX_VENDPRIV_HDR_SIZE;
62 if (cx != NULL) {
63 GLenum target;
64 GLenum pname;
65 GLint compsize = 0;
66 char *answer = NULL, answerBuffer[200];
67 xGLXSingleReply reply = { 0, };
68
69 if (do_swap) {
70 target = (GLenum) bswap_32(*(int *) (pc + 0));
71 pname = (GLenum) bswap_32(*(int *) (pc + 4));
72 }
73 else {
74 target = *(GLenum *) (pc + 0);
75 pname = *(GLuint *) (pc + 4);
76 }
77
78 /* The value of the GL_PROGRAM_LENGTH_ARB and GL_PROGRAM_LENGTH_NV
79 * enumerants is the same.
80 */
81 get_programiv(target, GL_PROGRAM_LENGTH_ARB, &compsize);
82
83 if (compsize != 0) {
84 __GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
85 __glXClearErrorOccured();
86
87 get_program_string(target, pname, (GLubyte *) answer);
88 }
89
90 if (__glXErrorOccured()) {
91 __GLX_BEGIN_REPLY(0);
92 __GLX_SEND_HEADER();
93 }
94 else {
95 __GLX_BEGIN_REPLY(compsize);
96 ((xGLXGetTexImageReply *) &reply)->width = compsize;
97 __GLX_SEND_HEADER();
98 __GLX_SEND_VOID_ARRAY(compsize);
99 }
100
101 error = Success;
102 }
103
104 return error;
105 }
106
107 int
__glXDisp_GetProgramStringARB(struct __GLXclientStateRec * cl,GLbyte * pc)108 __glXDisp_GetProgramStringARB(struct __GLXclientStateRec *cl, GLbyte * pc)
109 {
110 PFNGLGETPROGRAMIVARBPROC get_program =
111 __glGetProcAddress("glGetProgramivARB");
112 PFNGLGETPROGRAMSTRINGARBPROC get_program_string =
113 __glGetProcAddress("glGetProgramStringARB");
114
115 return DoGetProgramString(cl, pc, get_program, get_program_string, FALSE);
116 }
117
118 int
__glXDispSwap_GetProgramStringARB(struct __GLXclientStateRec * cl,GLbyte * pc)119 __glXDispSwap_GetProgramStringARB(struct __GLXclientStateRec *cl, GLbyte * pc)
120 {
121 PFNGLGETPROGRAMIVARBPROC get_program =
122 __glGetProcAddress("glGetProgramivARB");
123 PFNGLGETPROGRAMSTRINGARBPROC get_program_string =
124 __glGetProcAddress("glGetProgramStringARB");
125
126 return DoGetProgramString(cl, pc, get_program, get_program_string, TRUE);
127 }
128