From f4092abdf94af6a99aff944d6264bc1284e8bdd4 Mon Sep 17 00:00:00 2001 From: Reinhard Tartler Date: Mon, 10 Oct 2011 17:43:39 +0200 Subject: Imported nx-X11-3.1.0-1.tar.gz Summary: Imported nx-X11-3.1.0-1.tar.gz Keywords: Imported nx-X11-3.1.0-1.tar.gz into Git repository --- nx-X11/extras/Mesa/src/mesa/math/m_vector.h | 95 +++++++++++++++++++++++++++++ 1 file changed, 95 insertions(+) create mode 100644 nx-X11/extras/Mesa/src/mesa/math/m_vector.h (limited to 'nx-X11/extras/Mesa/src/mesa/math/m_vector.h') diff --git a/nx-X11/extras/Mesa/src/mesa/math/m_vector.h b/nx-X11/extras/Mesa/src/mesa/math/m_vector.h new file mode 100644 index 000000000..222b47f6e --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/math/m_vector.h @@ -0,0 +1,95 @@ + +/* + * Mesa 3-D graphics library + * Version: 3.5 + * + * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/* + * New (3.1) transformation code written by Keith Whitwell. + */ + + +#ifndef _M_VECTOR_H_ +#define _M_VECTOR_H_ + +#include "glheader.h" +#include "mtypes.h" /* hack for GLchan */ + + +#define VEC_DIRTY_0 0x1 +#define VEC_DIRTY_1 0x2 +#define VEC_DIRTY_2 0x4 +#define VEC_DIRTY_3 0x8 +#define VEC_MALLOC 0x10 /* storage field points to self-allocated mem*/ +#define VEC_NOT_WRITEABLE 0x40 /* writable elements to hold clipped data */ +#define VEC_BAD_STRIDE 0x100 /* matches tnl's prefered stride */ + + +#define VEC_SIZE_1 VEC_DIRTY_0 +#define VEC_SIZE_2 (VEC_DIRTY_0|VEC_DIRTY_1) +#define VEC_SIZE_3 (VEC_DIRTY_0|VEC_DIRTY_1|VEC_DIRTY_2) +#define VEC_SIZE_4 (VEC_DIRTY_0|VEC_DIRTY_1|VEC_DIRTY_2|VEC_DIRTY_3) + + + +/* Wrap all the information about vectors up in a struct. Has + * additional fields compared to the other vectors to help us track of + * different vertex sizes, and whether we need to clean columns out + * because they contain non-(0,0,0,1) values. + * + * The start field is used to reserve data for copied vertices at the + * end of _mesa_transform_vb, and avoids the need for a multiplication in + * the transformation routines. + */ +typedef struct { + GLfloat (*data)[4]; /* may be malloc'd or point to client data */ + GLfloat *start; /* points somewhere inside of */ + GLuint count; /* size of the vector (in elements) */ + GLuint stride; /* stride from one element to the next (in bytes) */ + GLuint size; /* 2-4 for vertices and 1-4 for texcoords */ + GLuint flags; /* which columns are dirty */ + void *storage; /* self-allocated storage */ +} GLvector4f; + + +extern void _mesa_vector4f_init( GLvector4f *v, GLuint flags, + GLfloat (*storage)[4] ); +extern void _mesa_vector4f_alloc( GLvector4f *v, GLuint flags, + GLuint count, GLuint alignment ); +extern void _mesa_vector4f_free( GLvector4f *v ); +extern void _mesa_vector4f_print( GLvector4f *v, GLubyte *, GLboolean ); +extern void _mesa_vector4f_clean_elem( GLvector4f *vec, GLuint nr, GLuint elt ); + + + + + +/* + * Given vector , return a pointer (cast to to the -th element. + * + * End up doing a lot of slow imuls if not careful. + */ +#define VEC_ELT( v, type, i ) \ + ( (type *) ( ((GLbyte *) ((v)->data)) + (i) * (v)->stride) ) + + +#endif -- cgit v1.2.3