src/glx/x11/indirect_transpose_matrix.c

   1 /*
   2  * (C) Copyright IBM Corporation 2004
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * on the rights to use, copy, modify, merge, publish, distribute, sub
   9  * license, and/or sell copies of the Software, and to permit persons to whom
  10  * the Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
  19  * THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  22  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 #include <GL/gl.h>
  26 #include "indirect.h"
  27
  28 static void TransposeMatrixf(const GLfloat s[16], GLfloat d[16])
  29 {
  30     int i, j;
  31     for (i = 0; i < 4; i++) {
  32         for (j = 0; j < 4; j++) {
  33             d[i*4+j] = s[j*4+i];
  34         }
  35     }
  36 }
  37
  38 static void TransposeMatrixd(const GLdouble s[16], GLdouble d[16])
  39 {
  40     int i, j;
  41     for (i = 0; i < 4; i++) {
  42         for (j = 0; j < 4; j++) {
  43             d[i*4+j] = s[j*4+i];
  44         }
  45     }
  46 }
  47
  48
  49 void
  50 __indirect_glLoadTransposeMatrixdARB( const GLdouble * m )
  51 {
  52    GLdouble mt[16];
  53
  54    TransposeMatrixd( m, mt );
  55    __indirect_glLoadMatrixd( mt );
  56 }
  57
  58 void
  59 __indirect_glLoadTransposeMatrixfARB( const GLfloat * m )
  60 {
  61    GLfloat mt[16];
  62
  63    TransposeMatrixf( m, mt );
  64    __indirect_glLoadMatrixf( mt );
  65 }
  66
  67 void
  68 __indirect_glMultTransposeMatrixdARB( const GLdouble * m )
  69 {
  70    GLdouble mt[16];
  71
  72    TransposeMatrixd( m, mt );
  73    __indirect_glMultMatrixd( mt );
  74 }
  75
  76 void
  77 __indirect_glMultTransposeMatrixfARB( const GLfloat * m )
  78 {
  79    GLfloat mt[16];
  80
  81    TransposeMatrixf( m, mt );
  82    __indirect_glMultMatrixf( mt );
  83 }