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 * IBM,
20 * AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
21 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
22 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 */
25
26#ifdef HAVE_DIX_CONFIG_H
27#include <dix-config.h>
28#endif
29
30#include "glxserver.h"
31#include "glxbyteorder.h"
32#include "glxext.h"
33#include "singlesize.h"
34#include "unpack.h"
35#include "indirect_size_get.h"
36#include "indirect_dispatch.h"
37
38int
39__glXDisp_GetCompressedTexImage(struct __GLXclientStateRec *cl, GLbyte * pc)
40{
41    xGLXSingleReq *const req = (xGLXSingleReq *) pc;
42    int error;
43    __GLXcontext *const cx = __glXForceCurrent(cl, req->contextTag, &error);
44    ClientPtr client = cl->client;
45
46    REQUEST_FIXED_SIZE(xGLXSingleReq, 8);
47
48    pc += __GLX_SINGLE_HDR_SIZE;
49    if (cx != NULL) {
50        const GLenum target = *(GLenum *) (pc + 0);
51        const GLint level = *(GLint *) (pc + 4);
52        GLint compsize = 0;
53        char *answer = NULL, answerBuffer[200];
54        xGLXSingleReply reply = { 0, };
55
56        glGetTexLevelParameteriv(target, level, GL_TEXTURE_COMPRESSED_IMAGE_SIZE,
57                                 &compsize);
58
59        if (compsize != 0) {
60            PFNGLGETCOMPRESSEDTEXIMAGEARBPROC GetCompressedTexImageARB =
61                __glGetProcAddress("glGetCompressedTexImageARB");
62            __GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
63            __glXClearErrorOccured();
64            GetCompressedTexImageARB(target, level, answer);
65        }
66
67        if (__glXErrorOccured()) {
68            __GLX_BEGIN_REPLY(0);
69            __GLX_SEND_HEADER();
70        }
71        else {
72            __GLX_BEGIN_REPLY(compsize);
73            ((xGLXGetTexImageReply *) &reply)->width = compsize;
74            __GLX_SEND_HEADER();
75            __GLX_SEND_VOID_ARRAY(compsize);
76        }
77
78        error = Success;
79    }
80
81    return error;
82}
83
84int
85__glXDispSwap_GetCompressedTexImage(struct __GLXclientStateRec *cl, GLbyte * pc)
86{
87    xGLXSingleReq *const req = (xGLXSingleReq *) pc;
88    int error;
89    __GLXcontext *const cx =
90        __glXForceCurrent(cl, bswap_32(req->contextTag), &error);
91    ClientPtr client = cl->client;
92
93    REQUEST_FIXED_SIZE(xGLXSingleReq, 8);
94
95    pc += __GLX_SINGLE_HDR_SIZE;
96    if (cx != NULL) {
97        const GLenum target = (GLenum) bswap_32(*(int *) (pc + 0));
98        const GLint level = (GLint) bswap_32(*(int *) (pc + 4));
99        GLint compsize = 0;
100        char *answer = NULL, answerBuffer[200];
101        xGLXSingleReply reply = { 0, };
102
103        glGetTexLevelParameteriv(target, level, GL_TEXTURE_COMPRESSED_IMAGE_SIZE,
104                                 &compsize);
105
106        if (compsize != 0) {
107            PFNGLGETCOMPRESSEDTEXIMAGEARBPROC GetCompressedTexImageARB =
108                __glGetProcAddress("glGetCompressedTexImageARB");
109            __GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
110            __glXClearErrorOccured();
111            GetCompressedTexImageARB(target, level, answer);
112        }
113
114        if (__glXErrorOccured()) {
115            __GLX_BEGIN_REPLY(0);
116            __GLX_SEND_HEADER();
117        }
118        else {
119            __GLX_BEGIN_REPLY(compsize);
120            ((xGLXGetTexImageReply *) &reply)->width = compsize;
121            __GLX_SEND_HEADER();
122            __GLX_SEND_VOID_ARRAY(compsize);
123        }
124
125        error = Success;
126    }
127
128    return error;
129}
130