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 "glthread.h"
35#include <GL/glxproto.h>
36
37void
38__indirect_glGetSeparableFilter(GLenum target, GLenum format, GLenum type,
39                                GLvoid * row, GLvoid * column, GLvoid * span)
40{
41   __GLX_SINGLE_DECLARE_VARIABLES();
42   const __GLXattribute *state;
43   xGLXGetSeparableFilterReply reply;
44   GLubyte *rowBuf, *colBuf;
45
46   if (!dpy)
47      return;
48   __GLX_SINGLE_LOAD_VARIABLES();
49   state = gc->client_state_private;
50
51   /* Send request */
52   __GLX_SINGLE_BEGIN(X_GLsop_GetSeparableFilter, __GLX_PAD(13));
53   __GLX_SINGLE_PUT_LONG(0, target);
54   __GLX_SINGLE_PUT_LONG(4, format);
55   __GLX_SINGLE_PUT_LONG(8, type);
56   __GLX_SINGLE_PUT_CHAR(12, state->storePack.swapEndian);
57   __GLX_SINGLE_READ_XREPLY();
58   compsize = reply.length << 2;
59
60   if (compsize != 0) {
61      GLint width, height;
62      GLint widthsize, heightsize;
63
64      width = reply.width;
65      height = reply.height;
66
67      widthsize = __glImageSize(width, 1, 1, format, type, 0);
68      heightsize = __glImageSize(height, 1, 1, format, type, 0);
69
70      /* Allocate a holding buffer to transform the data from */
71      rowBuf = (GLubyte *) Xmalloc(widthsize);
72      if (!rowBuf) {
73         /* Throw data away */
74         _XEatData(dpy, compsize);
75         __glXSetError(gc, GL_OUT_OF_MEMORY);
76         UnlockDisplay(dpy);
77         SyncHandle();
78         return;
79      }
80      else {
81         __GLX_SINGLE_GET_CHAR_ARRAY(((char *) rowBuf), widthsize);
82         __glEmptyImage(gc, 1, width, 1, 1, format, type, rowBuf, row);
83         Xfree((char *) rowBuf);
84      }
85      colBuf = (GLubyte *) Xmalloc(heightsize);
86      if (!colBuf) {
87         /* Throw data away */
88         _XEatData(dpy, compsize - __GLX_PAD(widthsize));
89         __glXSetError(gc, GL_OUT_OF_MEMORY);
90         UnlockDisplay(dpy);
91         SyncHandle();
92         return;
93      }
94      else {
95         __GLX_SINGLE_GET_CHAR_ARRAY(((char *) colBuf), heightsize);
96         __glEmptyImage(gc, 1, height, 1, 1, format, type, colBuf, column);
97         Xfree((char *) colBuf);
98      }
99   }
100   else {
101      /*
102       ** don't modify user's buffer.
103       */
104   }
105   __GLX_SINGLE_END();
106
107}
108
109
110/* it is defined to gl_dispatch_stub_NNN in indirect.h */
111void gl_dispatch_stub_GetSeparableFilterEXT (GLenum target, GLenum format,
112                                             GLenum type, GLvoid * row,
113                                             GLvoid * column, GLvoid * span)
114{
115   struct glx_context *const gc = __glXGetCurrentContext();
116
117#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
118   if (gc->isDirect) {
119      const _glapi_proc *const table = (_glapi_proc *) GET_DISPATCH();
120      PFNGLGETSEPARABLEFILTEREXTPROC p =
121         (PFNGLGETSEPARABLEFILTEREXTPROC) table[359];
122
123      p(target, format, type, row, column, span);
124      return;
125   }
126   else
127#endif
128   {
129      Display *const dpy = gc->currentDpy;
130      const GLuint cmdlen = __GLX_PAD(13);
131
132      if (dpy != NULL) {
133         const __GLXattribute *const state = gc->client_state_private;
134         xGLXGetSeparableFilterReply reply;
135         GLubyte const *pc =
136            __glXSetupVendorRequest(gc, X_GLXVendorPrivateWithReply,
137                                    X_GLvop_GetSeparableFilterEXT, cmdlen);
138         unsigned compsize;
139
140
141         (void) memcpy((void *) (pc + 0), (void *) (&target), 4);
142         (void) memcpy((void *) (pc + 4), (void *) (&format), 4);
143         (void) memcpy((void *) (pc + 8), (void *) (&type), 4);
144         *(int8_t *) (pc + 12) = state->storePack.swapEndian;
145
146         (void) _XReply(dpy, (xReply *) & reply, 0, False);
147
148         compsize = reply.length << 2;
149
150         if (compsize != 0) {
151            const GLint width = reply.width;
152            const GLint height = reply.height;
153            const GLint widthsize =
154               __glImageSize(width, 1, 1, format, type, 0);
155            const GLint heightsize =
156               __glImageSize(height, 1, 1, format, type, 0);
157            GLubyte *const buf =
158               (GLubyte *) Xmalloc((widthsize > heightsize) ? widthsize :
159                                   heightsize);
160
161            if (buf == NULL) {
162               /* Throw data away */
163               _XEatData(dpy, compsize);
164               __glXSetError(gc, GL_OUT_OF_MEMORY);
165
166               UnlockDisplay(dpy);
167               SyncHandle();
168               return;
169            }
170            else {
171               int extra;
172
173               extra = 4 - (widthsize & 3);
174               _XRead(dpy, (char *) buf, widthsize);
175               if (extra < 4) {
176                  _XEatData(dpy, extra);
177               }
178
179               __glEmptyImage(gc, 1, width, 1, 1, format, type, buf, row);
180
181               extra = 4 - (heightsize & 3);
182               _XRead(dpy, (char *) buf, heightsize);
183               if (extra < 4) {
184                  _XEatData(dpy, extra);
185               }
186
187               __glEmptyImage(gc, 1, height, 1, 1, format, type, buf, column);
188
189               Xfree((char *) buf);
190            }
191         }
192      }
193   }
194}
195