diff options
Diffstat (limited to 'src/mesa/math/m_dotprod_tmp.h')
| -rw-r--r-- | src/mesa/math/m_dotprod_tmp.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/src/mesa/math/m_dotprod_tmp.h b/src/mesa/math/m_dotprod_tmp.h new file mode 100644 index 0000000000..637e35fd58 --- /dev/null +++ b/src/mesa/math/m_dotprod_tmp.h @@ -0,0 +1,128 @@ +/* $Id: m_dotprod_tmp.h,v 1.1 2000/11/16 21:05:41 keithw Exp $ */ + +/* + * Mesa 3-D graphics library + * Version: 3.1 + * + * Copyright (C) 1999 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. + */ + + +/* Note - respects the stride of the output vector. + */ +static void TAG(dotprod_vec2)( GLvector4f *out_vec, + GLuint elt, + const GLvector4f *coord_vec, + const GLfloat plane[4], + const GLubyte mask[]) +{ + GLuint stride = coord_vec->stride; + GLfloat *coord = coord_vec->start; + GLuint count = coord_vec->count; + + GLuint outstride = out_vec->stride; + GLfloat *out = out_vec->start + elt; + GLuint i; + + const GLfloat plane0 = plane[0], plane1 = plane[1], plane3 = plane[3]; + + (void) mask; + + for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(out,outstride)) { + CULL_CHECK { + *out = (coord[0] * plane0 + + coord[1] * plane1 + + plane3); + } + } + out_vec->count = coord_vec->count; +} + +static void TAG(dotprod_vec3)( GLvector4f *out_vec, + GLuint elt, + const GLvector4f *coord_vec, + const GLfloat plane[4], + const GLubyte mask[]) +{ + GLuint stride = coord_vec->stride; + GLfloat *coord = coord_vec->start; + GLuint count = coord_vec->count; + + GLuint outstride = out_vec->stride; + GLfloat *out = out_vec->start + elt; + GLuint i; + + const GLfloat plane0 = plane[0], plane1 = plane[1], plane2 = plane[2]; + const GLfloat plane3 = plane[3]; + + (void) mask; + + for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(out,outstride)) { + CULL_CHECK { + *out = (coord[0] * plane0 + + coord[1] * plane1 + + coord[2] * plane2 + + plane3); + } + } + out_vec->count = coord_vec->count; +} + +static void TAG(dotprod_vec4)( GLvector4f *out_vec, + GLuint elt, + const GLvector4f *coord_vec, + const GLfloat plane[4], + const GLubyte mask[]) +{ + GLuint stride = coord_vec->stride; + GLfloat *coord = coord_vec->start; + GLuint count = coord_vec->count; + + GLuint outstride = out_vec->stride; + GLfloat *out = out_vec->start + elt; + GLuint i; + + const GLfloat plane0 = plane[0], plane1 = plane[1], plane2 = plane[2]; + const GLfloat plane3 = plane[3]; + + (void) mask; + + for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(out,outstride)) { + CULL_CHECK { + *out = (coord[0] * plane0 + + coord[1] * plane1 + + coord[2] * plane2 + + coord[3] * plane3); + } + } + out_vec->count = coord_vec->count; +} + + +static void TAG(init_dotprod)( void ) +{ + gl_dotprod_tab[IDX&1][2] = TAG(dotprod_vec2); + gl_dotprod_tab[IDX&1][3] = TAG(dotprod_vec3); + gl_dotprod_tab[IDX&1][4] = TAG(dotprod_vec4); +} |