aboutsummaryrefslogtreecommitdiff
path: root/xorg-server/glx/indirect_program.c
blob: fa4a2408bbbc56a75f4310e1ccdd345fd40ef474 (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
/*
 * (C) Copyright IBM Corporation 2005, 2006
 * 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
 * THE COPYRIGHT HOLDERS, THE AUTHORS, AND/OR THEIR 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.
 */

/**
 * \file indirect_program.c
 * Hand-coded routines needed to support programmable pipeline extensions.
 *
 * \author Ian Romanick <idr@us.ibm.com>
 */

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

#include "glxserver.h"
#include "glxbyteorder.h"
#include "glxext.h"
#include "singlesize.h"
#include "unpack.h"
#include "indirect_size_get.h"
#include "indirect_dispatch.h"

/**
 * Handle both types of glGetProgramString calls.
 */
static int
DoGetProgramString(struct __GLXclientStateRec *cl, GLbyte * pc,
                   PFNGLGETPROGRAMIVARBPROC get_programiv,
                   PFNGLGETPROGRAMSTRINGARBPROC get_program_string,
                   Bool do_swap)
{
    xGLXVendorPrivateWithReplyReq *const req =
        (xGLXVendorPrivateWithReplyReq *) pc;
    int error;
    __GLXcontext *const cx = __glXForceCurrent(cl, req->contextTag, &error);
    ClientPtr client = cl->client;

    pc += __GLX_VENDPRIV_HDR_SIZE;
    if (cx != NULL) {
        GLenum target;
        GLenum pname;
        GLint compsize = 0;
        char *answer = NULL, answerBuffer[200];

        if (do_swap) {
            target = (GLenum) bswap_32(*(int *) (pc + 0));
            pname = (GLenum) bswap_32(*(int *) (pc + 4));
        }
        else {
            target = *(GLenum *) (pc + 0);
            pname = *(GLuint *) (pc + 4);
        }

        /* The value of the GL_PROGRAM_LENGTH_ARB and GL_PROGRAM_LENGTH_NV
         * enumerants is the same.
         */
        get_programiv(target, GL_PROGRAM_LENGTH_ARB, &compsize);

        if (compsize != 0) {
            __GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
            __glXClearErrorOccured();

            get_program_string(target, pname, (GLubyte *) answer);
        }

        if (__glXErrorOccured()) {
            __GLX_BEGIN_REPLY(0);
            __GLX_SEND_HEADER();
        }
        else {
            __GLX_BEGIN_REPLY(compsize);
            ((xGLXGetTexImageReply *) &__glXReply)->width = compsize;
            __GLX_SEND_HEADER();
            __GLX_SEND_VOID_ARRAY(compsize);
        }

        error = Success;
    }

    return error;
}

int
__glXDisp_GetProgramStringARB(struct __GLXclientStateRec *cl, GLbyte * pc)
{
    PFNGLGETPROGRAMIVARBPROC get_program =
        __glGetProcAddress("glGetProgramivARB");
    PFNGLGETPROGRAMSTRINGARBPROC get_program_string =
        __glGetProcAddress("glGetProgramStringARB");

    return DoGetProgramString(cl, pc, get_program, get_program_string, False);
}

int
__glXDispSwap_GetProgramStringARB(struct __GLXclientStateRec *cl, GLbyte * pc)
{
    PFNGLGETPROGRAMIVARBPROC get_program =
        __glGetProcAddress("glGetProgramivARB");
    PFNGLGETPROGRAMSTRINGARBPROC get_program_string =
        __glGetProcAddress("glGetProgramStringARB");

    return DoGetProgramString(cl, pc, get_program, get_program_string, True);
}

int
__glXDisp_GetProgramStringNV(struct __GLXclientStateRec *cl, GLbyte * pc)
{
    PFNGLGETPROGRAMIVARBPROC get_program =
        __glGetProcAddress("glGetProgramivARB");
    PFNGLGETPROGRAMSTRINGARBPROC get_program_string =
        __glGetProcAddress("glGetProgramStringARB");

    return DoGetProgramString(cl, pc, get_program, get_program_string, False);
}

int
__glXDispSwap_GetProgramStringNV(struct __GLXclientStateRec *cl, GLbyte * pc)
{
    PFNGLGETPROGRAMIVARBPROC get_program =
        __glGetProcAddress("glGetProgramivARB");
    PFNGLGETPROGRAMSTRINGARBPROC get_program_string =
        __glGetProcAddress("glGetProgramStringARB");

    return DoGetProgramString(cl, pc, get_program, get_program_string, True);
}