1 
2 /*
3  * Mesa 3-D graphics library
4  *
5  * Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a
8  * copy of this software and associated documentation files (the "Software"),
9  * to deal in the Software without restriction, including without limitation
10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11  * and/or sell copies of the Software, and to permit persons to whom the
12  * Software is furnished to do so, subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice shall be included
15  * 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  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23  * OTHER DEALINGS IN THE SOFTWARE.
24  */
25 
26 /*
27  * New (3.1) transformation code written by Keith Whitwell.
28  */
29 
30 
31 #define COPY_FUNC( BITS )						\
32 static void TAG2(copy, BITS)( GLvector4f *to, const GLvector4f *f )	\
33 {									\
34    GLfloat (*t)[4] = (GLfloat (*)[4])to->start;				\
35    GLfloat *from = f->start;						\
36    GLuint stride = f->stride;				        	\
37    GLuint count = to->count;						\
38    GLuint i;								\
39 									\
40    if (BITS)								\
41       STRIDE_LOOP {							\
42 	 if (BITS&1) t[i][0] = from[0];					\
43 	 if (BITS&2) t[i][1] = from[1];					\
44 	 if (BITS&4) t[i][2] = from[2];					\
45 	 if (BITS&8) t[i][3] = from[3];					\
46       }									\
47 }
48 
49 /* We got them all here:
50  */
51 COPY_FUNC( 0x0 )		/* noop */
52 COPY_FUNC( 0x1 )
53 COPY_FUNC( 0x2 )
54 COPY_FUNC( 0x3 )
55 COPY_FUNC( 0x4 )
56 COPY_FUNC( 0x5 )
57 COPY_FUNC( 0x6 )
58 COPY_FUNC( 0x7 )
59 COPY_FUNC( 0x8 )
60 COPY_FUNC( 0x9 )
61 COPY_FUNC( 0xa )
62 COPY_FUNC( 0xb )
63 COPY_FUNC( 0xc )
64 COPY_FUNC( 0xd )
65 COPY_FUNC( 0xe )
66 COPY_FUNC( 0xf )
67 
68 static void TAG2(init_copy, 0)( void )
69 {
70    _mesa_copy_tab[0x0] = TAG2(copy, 0x0);
71    _mesa_copy_tab[0x1] = TAG2(copy, 0x1);
72    _mesa_copy_tab[0x2] = TAG2(copy, 0x2);
73    _mesa_copy_tab[0x3] = TAG2(copy, 0x3);
74    _mesa_copy_tab[0x4] = TAG2(copy, 0x4);
75    _mesa_copy_tab[0x5] = TAG2(copy, 0x5);
76    _mesa_copy_tab[0x6] = TAG2(copy, 0x6);
77    _mesa_copy_tab[0x7] = TAG2(copy, 0x7);
78    _mesa_copy_tab[0x8] = TAG2(copy, 0x8);
79    _mesa_copy_tab[0x9] = TAG2(copy, 0x9);
80    _mesa_copy_tab[0xa] = TAG2(copy, 0xa);
81    _mesa_copy_tab[0xb] = TAG2(copy, 0xb);
82    _mesa_copy_tab[0xc] = TAG2(copy, 0xc);
83    _mesa_copy_tab[0xd] = TAG2(copy, 0xd);
84    _mesa_copy_tab[0xe] = TAG2(copy, 0xe);
85    _mesa_copy_tab[0xf] = TAG2(copy, 0xf);
86 }
87