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 * Mesa 3-D graphics library

 *

 * 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

 * THE AUTHORS OR COPYRIGHT HOLDERS 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.

 *

 * Authors:

 *    Gareth Hughes

 */

#include "main/context.h"

#include "main/macros.h"

#include "main/imports.h"

#include "m_xform.h"

#include "m_debug_util.h"

/* The linker doesn't like empty files */

static char dummy;

#endif

   ONE, NIL, NIL, NIL,

   NIL, ONE, NIL, NIL,

   NIL, NIL, ONE, NIL,

   NIL, NIL, NIL, NIL

};

static int m_norm_general[16] = {

   VAR, VAR, VAR, NIL,

   VAR, VAR, VAR, NIL,

   VAR, VAR, VAR, NIL,

   NIL, NIL, NIL, NIL

};

static int m_norm_no_rot[16] = {

   VAR, NIL, NIL, NIL,

   NIL, VAR, NIL, NIL,

   NIL, NIL, VAR, NIL,

   NIL, NIL, NIL, NIL

};

static int *norm_templates[8] = {

   m_norm_no_rot,

   m_norm_no_rot,

   m_norm_no_rot,

   m_norm_general,

   m_norm_general,

   m_norm_general,

   m_norm_identity,

   m_norm_identity

};

static int norm_types[8] = {

   NORM_TRANSFORM_NO_ROT,

   NORM_TRANSFORM_NO_ROT | NORM_RESCALE,

   NORM_TRANSFORM_NO_ROT | NORM_NORMALIZE,

   NORM_TRANSFORM,

   NORM_TRANSFORM | NORM_RESCALE,

   NORM_TRANSFORM | NORM_NORMALIZE,

   NORM_RESCALE,

   NORM_NORMALIZE

};

static int norm_scale_types[8] = {               /*  rescale factor          */

   NIL,                                          /*  NIL disables rescaling  */

   VAR,

   NIL,

   NIL,

   VAR,

   NIL,

   VAR,

   NIL

};

static int norm_normalize_types[8] = {           /*  normalizing ?? (no = 0) */

   0,

   0,

   1,

   0,

   0,

   1,

   0,

   1

};

static char *norm_strings[8] = {

   "NORM_TRANSFORM_NO_ROT",

   "NORM_TRANSFORM_NO_ROT | NORM_RESCALE",

   "NORM_TRANSFORM_NO_ROT | NORM_NORMALIZE",

   "NORM_TRANSFORM",

   "NORM_TRANSFORM | NORM_RESCALE",

   "NORM_TRANSFORM | NORM_NORMALIZE",

   "NORM_RESCALE",

   "NORM_NORMALIZE"

};

 * Reference transformations

 */

					GLfloat scale,

					const GLvector4f *in,

					const GLfloat *lengths,

					GLvector4f *dest )

{

   GLuint i;

   const GLfloat *s = in->start;

   const GLfloat *m = mat->inv;

   GLfloat (*out)[4] = (GLfloat (*)[4]) dest->start;

      GLfloat t[3];

      SCALE_SCALAR_3V( out[i], scale, t );

   }

}

					  GLfloat scale,

					  const GLvector4f *in,

					  const GLfloat *lengths,

					  GLvector4f *dest )

{

   GLuint i;

   const GLfloat *s = in->start;

   const GLfloat *m = mat->inv;

   GLfloat (*out)[4] = (GLfloat (*)[4]) dest->start;

      GLfloat t[3];

         GLfloat len = LEN_SQUARED_3FV( t );

         if ( len > 1e-20 ) {

	    /* Hmmm, don't know how we could test the precalculated

	     * length case...

	     */

            scale = INV_SQRTF( len );

	    SCALE_SCALAR_3V( out[i], scale, t );

         } else {

            out[i][0] = out[i][1] = out[i][2] = 0;

         }

      } else {

         scale = lengths[i];;

	 SCALE_SCALAR_3V( out[i], scale, t );

      }

   }

}

 * Normal transformation tests

 */

{

   m[0] = 63.0; m[4] = 43.0; m[ 8] = 29.0; m[12] = 43.0;

   m[1] = 55.0; m[5] = 17.0; m[ 9] = 31.0; m[13] =  7.0;

   m[2] = 44.0; m[6] =  9.0; m[10] =  7.0; m[14] =  3.0;

   m[3] = 11.0; m[7] = 23.0; m[11] = 91.0; m[15] =  9.0;

}

{

   GLvector4f source[1], dest[1], dest2[1], ref[1], ref2[1];

   GLmatrix mat[1];

   GLfloat s[TEST_COUNT][5], d[TEST_COUNT][4], r[TEST_COUNT][4];

   GLfloat d2[TEST_COUNT][4], r2[TEST_COUNT][4], length[TEST_COUNT];

   GLfloat scale;

   GLfloat *m;

   int i, j;

#ifdef  RUN_DEBUG_BENCHMARK

   int cycle_i;		/* the counter for the benchmarks we run */

#endif

   mat->inv = m = mat->m;

      for ( j = 0 ; j < 4 ; j++ ) {

         switch ( norm_templates[mtype][i * 4 + j] ) {

         case NIL:

            m[j * 4 + i] = 0.0;

            break;

         case ONE:

            m[j * 4 + i] = 1.0;

            break;

         case NEG:

            m[j * 4 + i] = -1.0;

            break;

         case VAR:

            break;

         default:

            exit(1);

         }

      }

   }

      ASSIGN_3V( d[i],  0.0, 0.0, 0.0 );

      ASSIGN_3V( s[i],  0.0, 0.0, 0.0 );

      ASSIGN_3V( d2[i], 0.0, 0.0, 0.0 );

      for ( j = 0 ; j < 3 ; j++ )

         s[i][j] = rnd();

      length[i] = INV_SQRTF( LEN_SQUARED_3FV( s[i] ) );

   }

   source->start = (GLfloat *) s;

   source->count = TEST_COUNT;

   source->stride = sizeof(s[0]);

   source->flags = 0;

   dest->start = (GLfloat *) d;

   dest->count = TEST_COUNT;

   dest->stride = sizeof(float[4]);

   dest->flags = 0;

   dest2->start = (GLfloat *) d2;

   dest2->count = TEST_COUNT;

   dest2->stride = sizeof(float[4]);

   dest2->flags = 0;

   ref->start = (GLfloat *) r;

   ref->count = TEST_COUNT;

   ref->stride = sizeof(float[4]);

   ref->flags = 0;

   ref2->start = (GLfloat *) r2;

   ref2->count = TEST_COUNT;

   ref2->stride = sizeof(float[4]);

   ref2->flags = 0;

      ref_norm_transform_rescale( mat, scale, source, NULL, ref );

   } else {

      ref_norm_transform_normalize( mat, scale, source, NULL, ref );

      ref_norm_transform_normalize( mat, scale, source, length, ref2 );

   }

      BEGIN_RACE( *cycles );

      func( mat, scale, source, NULL, dest );

      END_RACE( *cycles );

      func( mat, scale, source, length, dest2 );

   } else {

      func( mat, scale, source, NULL, dest );

      func( mat, scale, source, length, dest2 );

   }

      for ( j = 0 ; j < 3 ; j++ ) {

         if ( significand_match( d[i][j], r[i][j] ) < REQUIRED_PRECISION ) {

            printf( "-----------------------------\n" );

            printf( "(i = %i, j = %i)\n", i, j );

            printf( "%f \t %f \t [ratio = %e - %i bit missed]\n",

		    d[i][0], r[i][0], r[i][0]/d[i][0],

		    MAX_PRECISION - significand_match( d[i][0], r[i][0] ) );

            printf( "%f \t %f \t [ratio = %e - %i bit missed]\n",

		    d[i][1], r[i][1], r[i][1]/d[i][1],

		    MAX_PRECISION - significand_match( d[i][1], r[i][1] ) );

            printf( "%f \t %f \t [ratio = %e - %i bit missed]\n",

		    d[i][2], r[i][2], r[i][2]/d[i][2],

		    MAX_PRECISION - significand_match( d[i][2], r[i][2] ) );

            return 0;

         }

            if ( significand_match( d2[i][j], r2[i][j] ) < REQUIRED_PRECISION ) {

               printf( "------------------- precalculated length case ------\n" );

               printf( "(i = %i, j = %i)\n", i, j );

               printf( "%f \t %f \t [ratio = %e - %i bit missed]\n",

		       d2[i][0], r2[i][0], r2[i][0]/d2[i][0],

		       MAX_PRECISION - significand_match( d2[i][0], r2[i][0] ) );

               printf( "%f \t %f \t [ratio = %e - %i bit missed]\n",

		       d2[i][1], r2[i][1], r2[i][1]/d2[i][1],

		       MAX_PRECISION - significand_match( d2[i][1], r2[i][1] ) );

               printf( "%f \t %f \t [ratio = %e - %i bit missed]\n",

		       d2[i][2], r2[i][2], r2[i][2]/d2[i][2],

		       MAX_PRECISION - significand_match( d2[i][2], r2[i][2] ) );

               return 0;

            }

         }

      }

   }

   return 1;

}

{

   int mtype;

   long benchmark_tab[0xf];

   static int first_time = 1;

      first_time = 0;

      mesa_profile = _mesa_getenv( "MESA_PROFILE" );

   }

   if ( mesa_profile ) {

      if ( !counter_overhead ) {

	 INIT_COUNTER();

	 printf( "counter overhead: %ld cycles\n\n", counter_overhead );

      }

      printf( "normal transform results after hooking in %s functions:\n",

	      description );

      printf( "\n-------------------------------------------------------\n" );

   }

#endif

      normal_func func = _mesa_normal_tab[norm_types[mtype]];

      long *cycles = &benchmark_tab[mtype];

	 char buf[100];

	 sprintf( buf, "_mesa_normal_tab[0][%s] failed test (%s)",

		  norm_strings[mtype], description );

	 _mesa_problem( NULL, "%s", buf );

      }

      if ( mesa_profile ) {

	 printf( " %li\t", benchmark_tab[mtype] );

	 printf( " | [%s]\n", norm_strings[mtype] );

      }

#endif

   }

#ifdef RUN_DEBUG_BENCHMARK

   if ( mesa_profile ) {

      printf( "\n" );

   }

#endif

}