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author | Mike Gabriel <mike.gabriel@das-netzwerkteam.de> | 2017-02-17 16:11:01 +0100 |
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committer | ftrapero <frantracer@gmail.com> | 2017-06-15 14:16:37 +0200 |
commit | 209657f69055b17b00c3db3f99c7f411a6e8d176 (patch) | |
tree | 8d6ae61dfda54305a712bded9caff9ee608abf4e /nx-X11/extras/Mesa/src/mesa/math/m_xform.c | |
parent | 459021c165c7023ee75f524060ca270985b547c1 (diff) | |
download | nx-libs-209657f69055b17b00c3db3f99c7f411a6e8d176.tar.gz nx-libs-209657f69055b17b00c3db3f99c7f411a6e8d176.tar.bz2 nx-libs-209657f69055b17b00c3db3f99c7f411a6e8d176.zip |
nx-X11/extras/Mesa: Drop bundled Mesa, place a symlink to imported Git subtree of Mesa_6.4.1 instead.
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/math/m_xform.c')
-rw-r--r-- | nx-X11/extras/Mesa/src/mesa/math/m_xform.c | 230 |
1 files changed, 0 insertions, 230 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/math/m_xform.c b/nx-X11/extras/Mesa/src/mesa/math/m_xform.c deleted file mode 100644 index 5366e3498..000000000 --- a/nx-X11/extras/Mesa/src/mesa/math/m_xform.c +++ /dev/null @@ -1,230 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 5.1 - * - * Copyright (C) 1999-2003 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. - */ - - -/* - * Matrix/vertex/vector transformation stuff - * - * - * NOTES: - * 1. 4x4 transformation matrices are stored in memory in column major order. - * 2. Points/vertices are to be thought of as column vectors. - * 3. Transformation of a point p by a matrix M is: p' = M * p - */ - -#include "glheader.h" -#include "macros.h" - -#include "m_eval.h" -#include "m_matrix.h" -#include "m_translate.h" -#include "m_xform.h" -#include "mathmod.h" - - -#ifdef DEBUG -#include "m_debug.h" -#endif - -#ifdef USE_X86_ASM -#include "x86/common_x86_asm.h" -#endif - -#ifdef USE_X86_64_ASM -#include "x86-64/x86-64.h" -#endif - -#ifdef USE_SPARC_ASM -#include "sparc/sparc.h" -#endif - -#ifdef USE_PPC_ASM -#include "ppc/common_ppc_features.h" -#endif - -clip_func _mesa_clip_tab[5]; -clip_func _mesa_clip_np_tab[5]; -dotprod_func _mesa_dotprod_tab[5]; -vec_copy_func _mesa_copy_tab[0x10]; -normal_func _mesa_normal_tab[0xf]; -transform_func *_mesa_transform_tab[5]; - - -/* Raw data format used for: - * - Object-to-eye transform prior to culling, although this too - * could be culled under some circumstances. - * - Eye-to-clip transform (via the function above). - * - Cliptesting - * - And everything else too, if culling happens to be disabled. - * - * GH: It's used for everything now, as clipping/culling is done - * elsewhere (most often by the driver itself). - */ -#define TAG(x) x -#define TAG2(x,y) x##y -#define STRIDE_LOOP for ( i = 0 ; i < count ; i++, STRIDE_F(from, stride) ) -#define LOOP for ( i = 0 ; i < n ; i++ ) -#define ARGS -#include "m_xform_tmp.h" -#include "m_clip_tmp.h" -#include "m_norm_tmp.h" -#include "m_dotprod_tmp.h" -#include "m_copy_tmp.h" -#undef TAG -#undef TAG2 -#undef LOOP -#undef ARGS - - - - -GLvector4f *_mesa_project_points( GLvector4f *proj_vec, - const GLvector4f *clip_vec ) -{ - const GLuint stride = clip_vec->stride; - const GLfloat *from = (GLfloat *)clip_vec->start; - const GLuint count = clip_vec->count; - GLfloat (*vProj)[4] = (GLfloat (*)[4])proj_vec->start; - GLuint i; - - for (i = 0 ; i < count ; i++, STRIDE_F(from, stride)) - { - GLfloat oow = 1.0F / from[3]; - vProj[i][3] = oow; - vProj[i][0] = from[0] * oow; - vProj[i][1] = from[1] * oow; - vProj[i][2] = from[2] * oow; - } - - proj_vec->flags |= VEC_SIZE_4; - proj_vec->size = 3; - proj_vec->count = clip_vec->count; - return proj_vec; -} - - - - - - -/* - * Transform a 4-element row vector (1x4 matrix) by a 4x4 matrix. This - * function is used for transforming clipping plane equations and spotlight - * directions. - * Mathematically, u = v * m. - * Input: v - input vector - * m - transformation matrix - * Output: u - transformed vector - */ -void _mesa_transform_vector( GLfloat u[4], const GLfloat v[4], const GLfloat m[16] ) -{ - GLfloat v0=v[0], v1=v[1], v2=v[2], v3=v[3]; -#define M(row,col) m[row + col*4] - u[0] = v0 * M(0,0) + v1 * M(1,0) + v2 * M(2,0) + v3 * M(3,0); - u[1] = v0 * M(0,1) + v1 * M(1,1) + v2 * M(2,1) + v3 * M(3,1); - u[2] = v0 * M(0,2) + v1 * M(1,2) + v2 * M(2,2) + v3 * M(3,2); - u[3] = v0 * M(0,3) + v1 * M(1,3) + v2 * M(2,3) + v3 * M(3,3); -#undef M -} - - -/* Useful for one-off point transformations, as in clipping. - * Note that because the matrix isn't analysed we do too many - * multiplies, and that the result is always 4-clean. - */ -void _mesa_transform_point_sz( GLfloat Q[4], const GLfloat M[16], - const GLfloat P[4], GLuint sz ) -{ - if (Q == P) - return; - - if (sz == 4) - { - Q[0] = M[0] * P[0] + M[4] * P[1] + M[8] * P[2] + M[12] * P[3]; - Q[1] = M[1] * P[0] + M[5] * P[1] + M[9] * P[2] + M[13] * P[3]; - Q[2] = M[2] * P[0] + M[6] * P[1] + M[10] * P[2] + M[14] * P[3]; - Q[3] = M[3] * P[0] + M[7] * P[1] + M[11] * P[2] + M[15] * P[3]; - } - else if (sz == 3) - { - Q[0] = M[0] * P[0] + M[4] * P[1] + M[8] * P[2] + M[12]; - Q[1] = M[1] * P[0] + M[5] * P[1] + M[9] * P[2] + M[13]; - Q[2] = M[2] * P[0] + M[6] * P[1] + M[10] * P[2] + M[14]; - Q[3] = M[3] * P[0] + M[7] * P[1] + M[11] * P[2] + M[15]; - } - else if (sz == 2) - { - Q[0] = M[0] * P[0] + M[4] * P[1] + M[12]; - Q[1] = M[1] * P[0] + M[5] * P[1] + M[13]; - Q[2] = M[2] * P[0] + M[6] * P[1] + M[14]; - Q[3] = M[3] * P[0] + M[7] * P[1] + M[15]; - } - else if (sz == 1) - { - Q[0] = M[0] * P[0] + M[12]; - Q[1] = M[1] * P[0] + M[13]; - Q[2] = M[2] * P[0] + M[14]; - Q[3] = M[3] * P[0] + M[15]; - } -} - - -/* - * This is called only once. It initializes several tables with pointers - * to optimized transformation functions. This is where we can test for - * AMD 3Dnow! capability, Intel SSE, etc. and hook in the right code. - */ -void -_math_init_transformation( void ) -{ - init_c_transformations(); - init_c_norm_transform(); - init_c_cliptest(); - init_copy0(); - init_dotprod(); - -#ifdef DEBUG - _math_test_all_transform_functions( "default" ); - _math_test_all_normal_transform_functions( "default" ); - _math_test_all_cliptest_functions( "default" ); -#endif - -#ifdef USE_X86_ASM - _mesa_init_all_x86_transform_asm(); -#elif defined( USE_SPARC_ASM ) - _mesa_init_all_sparc_transform_asm(); -#elif defined( USE_PPC_ASM ) - _mesa_init_all_ppc_transform_asm(); -#elif defined( USE_X86_64_ASM ) - _mesa_init_all_x86_64_transform_asm(); -#endif -} - -void -_math_init( void ) -{ - _math_init_transformation(); - _math_init_translate(); - _math_init_eval(); -} |