1 /*
2 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
3 * Copyright (C) 1991-2000 Silicon Graphics, Inc. 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, sublicense,
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 including the dates of first publication and
13 * either this permission notice or a reference to
14 * http://oss.sgi.com/projects/FreeB/
15 * shall be included in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * SILICON GRAPHICS, INC. 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 * Except as contained in this notice, the name of Silicon Graphics, Inc.
26 * shall not be used in advertising or otherwise to promote the sale, use or
27 * other dealings in this Software without prior written authorization from
28 * Silicon Graphics, Inc.
29 */
30
31 #include "packsingle.h"
32 #include "indirect.h"
33 #include "glapi.h"
34 #include <GL/glxproto.h>
35
36 void
__indirect_glGetSeparableFilter(GLenum target,GLenum format,GLenum type,GLvoid * row,GLvoid * column,GLvoid * span)37 __indirect_glGetSeparableFilter(GLenum target, GLenum format, GLenum type,
38 GLvoid * row, GLvoid * column, GLvoid * span)
39 {
40 __GLX_SINGLE_DECLARE_VARIABLES();
41 const __GLXattribute *state;
42 xGLXGetSeparableFilterReply reply;
43 GLubyte *rowBuf, *colBuf;
44
45 if (!dpy)
46 return;
47 __GLX_SINGLE_LOAD_VARIABLES();
48 state = gc->client_state_private;
49
50 /* Send request */
51 __GLX_SINGLE_BEGIN(X_GLsop_GetSeparableFilter, __GLX_PAD(13));
52 __GLX_SINGLE_PUT_LONG(0, target);
53 __GLX_SINGLE_PUT_LONG(4, format);
54 __GLX_SINGLE_PUT_LONG(8, type);
55 __GLX_SINGLE_PUT_CHAR(12, state->storePack.swapEndian);
56 __GLX_SINGLE_READ_XREPLY();
57 compsize = reply.length << 2;
58
59 if (compsize != 0) {
60 GLint width, height;
61 GLint widthsize, heightsize;
62
63 width = reply.width;
64 height = reply.height;
65
66 widthsize = __glImageSize(width, 1, 1, format, type, 0);
67 heightsize = __glImageSize(height, 1, 1, format, type, 0);
68
69 /* Allocate a holding buffer to transform the data from */
70 rowBuf = malloc(widthsize);
71 if (!rowBuf) {
72 /* Throw data away */
73 _XEatData(dpy, compsize);
74 __glXSetError(gc, GL_OUT_OF_MEMORY);
75 UnlockDisplay(dpy);
76 SyncHandle();
77 return;
78 }
79 else {
80 __GLX_SINGLE_GET_CHAR_ARRAY(((char *) rowBuf), widthsize);
81 __glEmptyImage(gc, 1, width, 1, 1, format, type, rowBuf, row);
82 free((char *) rowBuf);
83 }
84 colBuf = malloc(heightsize);
85 if (!colBuf) {
86 /* Throw data away */
87 _XEatData(dpy, compsize - __GLX_PAD(widthsize));
88 __glXSetError(gc, GL_OUT_OF_MEMORY);
89 UnlockDisplay(dpy);
90 SyncHandle();
91 return;
92 }
93 else {
94 __GLX_SINGLE_GET_CHAR_ARRAY(((char *) colBuf), heightsize);
95 __glEmptyImage(gc, 1, height, 1, 1, format, type, colBuf, column);
96 free((char *) colBuf);
97 }
98 }
99 else {
100 /*
101 ** don't modify user's buffer.
102 */
103 }
104 __GLX_SINGLE_END();
105
106 }
107
108
109 /* it is defined to gl_dispatch_stub_NNN in indirect.h */
gl_dispatch_stub_GetSeparableFilterEXT(GLenum target,GLenum format,GLenum type,GLvoid * row,GLvoid * column,GLvoid * span)110 void gl_dispatch_stub_GetSeparableFilterEXT (GLenum target, GLenum format,
111 GLenum type, GLvoid * row,
112 GLvoid * column, GLvoid * span)
113 {
114 struct glx_context *const gc = __glXGetCurrentContext();
115
116 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
117 if (gc->isDirect) {
118 const _glapi_proc *const table = (_glapi_proc *) GET_DISPATCH();
119 PFNGLGETSEPARABLEFILTEREXTPROC p =
120 (PFNGLGETSEPARABLEFILTEREXTPROC) table[359];
121
122 p(target, format, type, row, column, span);
123 return;
124 }
125 else
126 #endif
127 {
128 Display *const dpy = gc->currentDpy;
129 const GLuint cmdlen = __GLX_PAD(13);
130
131 if (dpy != NULL) {
132 const __GLXattribute *const state = gc->client_state_private;
133 xGLXGetSeparableFilterReply reply;
134 GLubyte const *pc =
135 __glXSetupVendorRequest(gc, X_GLXVendorPrivateWithReply,
136 X_GLvop_GetSeparableFilterEXT, cmdlen);
137 unsigned compsize;
138
139
140 (void) memcpy((void *) (pc + 0), (void *) (&target), 4);
141 (void) memcpy((void *) (pc + 4), (void *) (&format), 4);
142 (void) memcpy((void *) (pc + 8), (void *) (&type), 4);
143 *(int8_t *) (pc + 12) = state->storePack.swapEndian;
144
145 (void) _XReply(dpy, (xReply *) & reply, 0, False);
146
147 compsize = reply.length << 2;
148
149 if (compsize != 0) {
150 const GLint width = reply.width;
151 const GLint height = reply.height;
152 const GLint widthsize =
153 __glImageSize(width, 1, 1, format, type, 0);
154 const GLint heightsize =
155 __glImageSize(height, 1, 1, format, type, 0);
156 GLubyte *const buf =
157 malloc((widthsize > heightsize) ? widthsize : heightsize);
158
159 if (buf == NULL) {
160 /* Throw data away */
161 _XEatData(dpy, compsize);
162 __glXSetError(gc, GL_OUT_OF_MEMORY);
163
164 UnlockDisplay(dpy);
165 SyncHandle();
166 return;
167 }
168 else {
169 int extra;
170
171 extra = 4 - (widthsize & 3);
172 _XRead(dpy, (char *) buf, widthsize);
173 if (extra < 4) {
174 _XEatData(dpy, extra);
175 }
176
177 __glEmptyImage(gc, 1, width, 1, 1, format, type, buf, row);
178
179 extra = 4 - (heightsize & 3);
180 _XRead(dpy, (char *) buf, heightsize);
181 if (extra < 4) {
182 _XEatData(dpy, extra);
183 }
184
185 __glEmptyImage(gc, 1, height, 1, 1, format, type, buf, column);
186
187 free((char *) buf);
188 }
189 }
190 }
191 }
192 }
193