diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/math/m_xform.h')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/math/m_xform.h | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/math/m_xform.h b/nx-X11/extras/Mesa/src/mesa/math/m_xform.h deleted file mode 100644 index 63f1062fc..000000000 --- a/nx-X11/extras/Mesa/src/mesa/math/m_xform.h +++ /dev/null @@ -1,185 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.1 - * - * Copyright (C) 1999-2004 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. - */ - - -#ifndef _M_XFORM_H -#define _M_XFORM_H - - -#include "glheader.h" -#include "config.h" -#include "math/m_vector.h" -#include "math/m_matrix.h" - -#ifdef USE_X86_ASM -#define _XFORMAPI _ASMAPI -#define _XFORMAPIP _ASMAPIP -#else -#define _XFORMAPI -#define _XFORMAPIP * -#endif - - -extern void -_mesa_transform_vector(GLfloat u[4], CONST GLfloat v[4], CONST GLfloat m[16]); - - -extern void -_math_init_transformation(void); - - -/* KW: Clip functions now do projective divide as well. The projected - * coordinates are very useful to us because they let us cull - * backfaces and eliminate vertices from lighting, fogging, etc - * calculations. Despite the fact that this divide could be done one - * day in hardware, we would still have a reason to want to do it here - * as long as those other calculations remain in software. - * - * Clipping is a convenient place to do the divide on x86 as it should be - * possible to overlap with integer outcode calculations. - * - * There are two cases where we wouldn't want to do the divide in cliptest: - * - When we aren't clipping. We still might want to cull backfaces - * so the divide should be done elsewhere. This currently never - * happens. - * - * - When culling isn't likely to help us, such as when the GL culling - * is disabled and we not lighting or are only lighting - * one-sided. In this situation, backface determination provides - * us with no useful information. A tricky case to detect is when - * all input data is already culled, although hopefully the - * application wouldn't turn on culling in such cases. - * - * We supply a buffer to hold the [x/w,y/w,z/w,1/w] values which - * are the result of the projection. This is only used in the - * 4-vector case - in other cases, we just use the clip coordinates - * as the projected coordinates - they are identical. - * - * This is doubly convenient because it means the Win[] array is now - * of the same stride as all the others, so I can now turn map_vertices - * into a straight-forward matrix transformation, with asm acceleration - * automatically available. - */ - -/* Vertex buffer clipping flags - */ -#define CLIP_RIGHT_SHIFT 0 -#define CLIP_LEFT_SHIFT 1 -#define CLIP_TOP_SHIFT 2 -#define CLIP_BOTTOM_SHIFT 3 -#define CLIP_NEAR_SHIFT 4 -#define CLIP_FAR_SHIFT 5 - -#define CLIP_RIGHT_BIT 0x01 -#define CLIP_LEFT_BIT 0x02 -#define CLIP_TOP_BIT 0x04 -#define CLIP_BOTTOM_BIT 0x08 -#define CLIP_NEAR_BIT 0x10 -#define CLIP_FAR_BIT 0x20 -#define CLIP_USER_BIT 0x40 -#define CLIP_CULL_BIT 0x80 -#define CLIP_ALL_BITS 0x3f - - -typedef GLvector4f * (_XFORMAPIP clip_func)( GLvector4f *vClip, - GLvector4f *vProj, - GLubyte clipMask[], - GLubyte *orMask, - GLubyte *andMask ); - -typedef void (*dotprod_func)( GLfloat *out, - GLuint out_stride, - CONST GLvector4f *coord_vec, - CONST GLfloat plane[4] ); - -typedef void (*vec_copy_func)( GLvector4f *to, - CONST GLvector4f *from ); - - - -/* - * Functions for transformation of normals in the VB. - */ -typedef void (_NORMAPIP normal_func)( CONST GLmatrix *mat, - GLfloat scale, - CONST GLvector4f *in, - CONST GLfloat lengths[], - GLvector4f *dest ); - - -/* Flags for selecting a normal transformation function. - */ -#define NORM_RESCALE 0x1 /* apply the scale factor */ -#define NORM_NORMALIZE 0x2 /* normalize */ -#define NORM_TRANSFORM 0x4 /* apply the transformation matrix */ -#define NORM_TRANSFORM_NO_ROT 0x8 /* apply the transformation matrix */ - - - - -/* KW: New versions of the transform function allow a mask array - * specifying that individual vector transform should be skipped - * when the mask byte is zero. This is always present as a - * parameter, to allow a unified interface. - */ -typedef void (_XFORMAPIP transform_func)( GLvector4f *to_vec, - CONST GLfloat m[16], - CONST GLvector4f *from_vec ); - - -extern GLvector4f *_mesa_project_points( GLvector4f *to, - CONST GLvector4f *from ); - -extern void _mesa_transform_bounds3( GLubyte *orMask, GLubyte *andMask, - CONST GLfloat m[16], - CONST GLfloat src[][3] ); - -extern void _mesa_transform_bounds2( GLubyte *orMask, GLubyte *andMask, - CONST GLfloat m[16], - CONST GLfloat src[][3] ); - - -extern dotprod_func _mesa_dotprod_tab[5]; -extern vec_copy_func _mesa_copy_tab[0x10]; -extern vec_copy_func _mesa_copy_clean_tab[5]; -extern clip_func _mesa_clip_tab[5]; -extern clip_func _mesa_clip_np_tab[5]; -extern normal_func _mesa_normal_tab[0xf]; - -/* Use of 2 layers of linked 1-dimensional arrays to reduce - * cost of lookup. - */ -extern transform_func *_mesa_transform_tab[5]; - - -extern void _mesa_transform_point_sz( GLfloat Q[4], CONST GLfloat M[16], - CONST GLfloat P[4], GLuint sz ); - - -#define TransformRaw( to, mat, from ) \ - ( _mesa_transform_tab[(from)->size][(mat)->type]( to, (mat)->m, from ), \ - (to) ) - - -#endif |