1 /* $XFree86: xc/lib/GL/glx/singlepix.c,v 1.3 2001/03/21 16:04:39 dawes Exp $ */
3 ** License Applicability. Except to the extent portions of this file are
4 ** made subject to an alternative license as permitted in the SGI Free
5 ** Software License B, Version 1.1 (the "License"), the contents of this
6 ** file are subject only to the provisions of the License. You may not use
7 ** this file except in compliance with the License. You may obtain a copy
8 ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
9 ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
11 ** http://oss.sgi.com/projects/FreeB
13 ** Note that, as provided in the License, the Software is distributed on an
14 ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
15 ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
16 ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
17 ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
19 ** Original Code. The Original Code is: OpenGL Sample Implementation,
20 ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
21 ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
22 ** Copyright in any portions created by third parties is as indicated
23 ** elsewhere herein. All Rights Reserved.
25 ** Additional Notice Provisions: The application programming interfaces
26 ** established by SGI in conjunction with the Original Code are The
27 ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
28 ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
29 ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
30 ** Window System(R) (Version 1.3), released October 19, 1998. This software
31 ** was created using the OpenGL(R) version 1.2.1 Sample Implementation
32 ** published by SGI, but has not been independently verified as being
33 ** compliant with the OpenGL(R) version 1.2.1 Specification.
37 #include "packsingle.h"
41 #include "glapioffsets.h"
42 #include <GL/glxproto.h>
44 void __indirect_glGetSeparableFilter(GLenum target
, GLenum format
, GLenum type
,
45 GLvoid
*row
, GLvoid
*column
, GLvoid
*span
)
47 __GLX_SINGLE_DECLARE_VARIABLES();
48 const __GLXattribute
* state
;
49 xGLXGetSeparableFilterReply reply
;
50 GLubyte
*rowBuf
, *colBuf
;
53 __GLX_SINGLE_LOAD_VARIABLES();
54 state
= gc
->client_state_private
;
57 __GLX_SINGLE_BEGIN(X_GLsop_GetSeparableFilter
, __GLX_PAD(13));
58 __GLX_SINGLE_PUT_LONG(0,target
);
59 __GLX_SINGLE_PUT_LONG(4,format
);
60 __GLX_SINGLE_PUT_LONG(8,type
);
61 __GLX_SINGLE_PUT_CHAR(12,state
->storePack
.swapEndian
);
62 __GLX_SINGLE_READ_XREPLY();
63 compsize
= reply
.length
<< 2;
67 GLint widthsize
, heightsize
;
70 height
= reply
.height
;
72 widthsize
= __glImageSize(width
,1,1,format
, type
, 0);
73 heightsize
= __glImageSize(height
,1,1,format
, type
, 0);
75 /* Allocate a holding buffer to transform the data from */
76 rowBuf
= (GLubyte
*) Xmalloc(widthsize
);
79 _XEatData(dpy
, compsize
);
80 __glXSetError(gc
, GL_OUT_OF_MEMORY
);
85 __GLX_SINGLE_GET_CHAR_ARRAY(((char*)rowBuf
),widthsize
);
86 __glEmptyImage(gc
, 1, width
, 1, 1, format
, type
, rowBuf
, row
);
87 Xfree((char*) rowBuf
);
89 colBuf
= (GLubyte
*) Xmalloc(heightsize
);
92 _XEatData(dpy
, compsize
- __GLX_PAD(widthsize
));
93 __glXSetError(gc
, GL_OUT_OF_MEMORY
);
98 __GLX_SINGLE_GET_CHAR_ARRAY(((char*)colBuf
),heightsize
);
99 __glEmptyImage(gc
, 1, height
, 1, 1, format
, type
, colBuf
, column
);
100 Xfree((char*) colBuf
);
104 ** don't modify user's buffer.
112 #define CONCAT(a,b) a ## b
113 #define NAME(o) CONCAT(gl_dispatch_stub_, o)
115 void NAME(_gloffset_GetSeparableFilter
)(GLenum target
, GLenum format
, GLenum type
,
116 GLvoid
*row
, GLvoid
*column
, GLvoid
*span
)
118 __GLXcontext
* const gc
= __glXGetCurrentContext();
121 CALL_GetSeparableFilter(GET_DISPATCH(),
122 (target
, format
, type
, row
, column
, span
));
126 Display
*const dpy
= gc
->currentDpy
;
127 const GLuint cmdlen
= __GLX_PAD(13);
130 const __GLXattribute
* const state
= gc
->client_state_private
;
131 xGLXGetSeparableFilterReply reply
;
133 __glXSetupVendorRequest(gc
, X_GLXVendorPrivateWithReply
,
134 X_GLvop_GetSeparableFilterEXT
, cmdlen
);
138 (void) memcpy((void *) (pc
+ 0), (void *) (&target
), 4);
139 (void) memcpy((void *) (pc
+ 4), (void *) (&format
), 4);
140 (void) memcpy((void *) (pc
+ 8), (void *) (&type
), 4);
141 *(int8_t *) (pc
+ 12) = state
->storePack
.swapEndian
;
143 (void) _XReply(dpy
, (xReply
*) & reply
, 0, False
);
145 compsize
= reply
.length
<< 2;
148 const GLint width
= reply
.width
;
149 const GLint height
= reply
.height
;
150 const GLint widthsize
=
151 __glImageSize(width
, 1, 1, format
, type
, 0);
152 const GLint heightsize
=
153 __glImageSize(height
, 1, 1, format
, type
, 0);
154 GLubyte
* const buf
=
155 (GLubyte
*) Xmalloc((widthsize
> heightsize
) ? widthsize
: heightsize
);
158 /* Throw data away */
159 _XEatData(dpy
, compsize
);
160 __glXSetError(gc
, GL_OUT_OF_MEMORY
);
168 extra
= 4 - (widthsize
& 3);
169 _XRead(dpy
, (char *)buf
, widthsize
);
171 _XEatData(dpy
, extra
);
174 __glEmptyImage(gc
, 1, width
, 1, 1, format
, type
, buf
,
177 extra
= 4 - (heightsize
& 3);
178 _XRead(dpy
, (char *)buf
, heightsize
);
180 _XEatData(dpy
, extra
);
183 __glEmptyImage(gc
, 1, height
, 1, 1, format
, type
, buf
,