Added MesaLib-7.6

1 files changed, 383 insertions, 0 deletions

diff --git a/mesalib/src/mesa/math/m_debug_norm.c b/mesalib/src/mesa/math/m_debug_norm.c
new file mode 100644
index 000000000..89c632e7d
--- /dev/null
+++ b/mesalib/src/mesa/math/m_debug_norm.c
@@ -0,0 +1,383 @@
+
+/*
+ * 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.
+ *
+ * Authors:
+ *    Gareth Hughes
+ */
+
+#include "main/glheader.h"
+#include "main/context.h"
+#include "main/macros.h"
+#include "main/imports.h"
+
+#include "m_matrix.h"
+#include "m_xform.h"
+
+#include "m_debug.h"
+#include "m_debug_util.h"
+
+
+#ifdef __UNIXOS2__
+/* The linker doesn't like empty files */
+static char dummy;
+#endif
+
+#ifdef DEBUG_MATH  /* This code only used for debugging */
+
+
+static int m_norm_identity[16] = {
+   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
+ */
+
+static void ref_norm_transform_rescale( const GLmatrix *mat,
+					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;
+
+   (void) lengths;
+
+   for ( i = 0 ; i < in->count ; i++ ) {
+      GLfloat t[3];
+
+      TRANSFORM_NORMAL( t, s, m );
+      SCALE_SCALAR_3V( out[i], scale, t );
+
+      s = (GLfloat *)((char *)s + in->stride);
+   }
+}
+
+static void ref_norm_transform_normalize( const GLmatrix *mat,
+					  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;
+
+   for ( i = 0 ; i < in->count ; i++ ) {
+      GLfloat t[3];
+
+      TRANSFORM_NORMAL( t, s, m );
+
+      if ( !lengths ) {
+         GLfloat len = LEN_SQUARED_3FV( t );
+         if ( len > 1e-20 ) {
+	    /* Hmmm, don't know how we could test the precalculated
+	     * length case...
+	     */
+            scale = 1.0 / 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 );
+      }
+
+      s = (GLfloat *)((char *)s + in->stride);
+   }
+}
+
+
+/* =============================================================
+ * Normal transformation tests
+ */
+
+static void init_matrix( GLfloat *m )
+{
+   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;
+}
+
+
+static int test_norm_function( normal_func func, int mtype, long *cycles )
+{
+   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
+
+   (void) cycles;
+
+   mat->m = (GLfloat *) ALIGN_MALLOC( 16 * sizeof(GLfloat), 16 );
+   mat->inv = m = mat->m;
+
+   init_matrix( m );
+
+   scale = 1.0F + rnd () * norm_scale_types[mtype];
+
+   for ( i = 0 ; i < 4 ; i++ ) {
+      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:
+            _mesa_exit(1);
+         }
+      }
+   }
+
+   for ( i = 0 ; i < TEST_COUNT ; i++ ) {
+      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] = 1 / SQRTF( LEN_SQUARED_3FV( s[i] ) );
+   }
+
+   source->data = (GLfloat(*)[4]) s;
+   source->start = (GLfloat *) s;
+   source->count = TEST_COUNT;
+   source->stride = sizeof(s[0]);
+   source->flags = 0;
+
+   dest->data = d;
+   dest->start = (GLfloat *) d;
+   dest->count = TEST_COUNT;
+   dest->stride = sizeof(float[4]);
+   dest->flags = 0;
+
+   dest2->data = d2;
+   dest2->start = (GLfloat *) d2;
+   dest2->count = TEST_COUNT;
+   dest2->stride = sizeof(float[4]);
+   dest2->flags = 0;
+
+   ref->data = r;
+   ref->start = (GLfloat *) r;
+   ref->count = TEST_COUNT;
+   ref->stride = sizeof(float[4]);
+   ref->flags = 0;
+
+   ref2->data = r2;
+   ref2->start = (GLfloat *) r2;
+   ref2->count = TEST_COUNT;
+   ref2->stride = sizeof(float[4]);
+   ref2->flags = 0;
+
+   if ( norm_normalize_types[mtype] == 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 );
+   }
+
+   if ( mesa_profile ) {
+      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 ( i = 0 ; i < TEST_COUNT ; i++ ) {
+      for ( j = 0 ; j < 3 ; j++ ) {
+         if ( significand_match( d[i][j], r[i][j] ) < REQUIRED_PRECISION ) {
+            _mesa_printf( "-----------------------------\n" );
+            _mesa_printf( "(i = %i, j = %i)\n", i, j );
+            _mesa_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] ) );
+            _mesa_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] ) );
+            _mesa_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 ( norm_normalize_types[mtype] != 0 ) {
+            if ( significand_match( d2[i][j], r2[i][j] ) < REQUIRED_PRECISION ) {
+               _mesa_printf( "------------------- precalculated length case ------\n" );
+               _mesa_printf( "(i = %i, j = %i)\n", i, j );
+               _mesa_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] ) );
+               _mesa_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] ) );
+               _mesa_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;
+            }
+         }
+      }
+   }
+
+   ALIGN_FREE( mat->m );
+   return 1;
+}
+
+void _math_test_all_normal_transform_functions( char *description )
+{
+   int mtype;
+   long benchmark_tab[0xf];
+   static int first_time = 1;
+
+   if ( first_time ) {
+      first_time = 0;
+      mesa_profile = _mesa_getenv( "MESA_PROFILE" );
+   }
+
+#ifdef RUN_DEBUG_BENCHMARK
+   if ( mesa_profile ) {
+      if ( !counter_overhead ) {
+	 INIT_COUNTER();
+	 _mesa_printf( "counter overhead: %ld cycles\n\n", counter_overhead );
+      }
+      _mesa_printf( "normal transform results after hooking in %s functions:\n",
+	      description );
+      _mesa_printf( "\n-------------------------------------------------------\n" );
+   }
+#endif
+
+   for ( mtype = 0 ; mtype < 8 ; mtype++ ) {
+      normal_func func = _mesa_normal_tab[norm_types[mtype]];
+      long *cycles = &benchmark_tab[mtype];
+
+      if ( test_norm_function( func, mtype, cycles ) == 0 ) {
+	 char buf[100];
+	 _mesa_sprintf( buf, "_mesa_normal_tab[0][%s] failed test (%s)",
+		  norm_strings[mtype], description );
+	 _mesa_problem( NULL, buf );
+      }
+
+#ifdef RUN_DEBUG_BENCHMARK
+      if ( mesa_profile ) {
+	 _mesa_printf( " %li\t", benchmark_tab[mtype] );
+	 _mesa_printf( " | [%s]\n", norm_strings[mtype] );
+      }
+#endif
+   }
+#ifdef RUN_DEBUG_BENCHMARK
+   if ( mesa_profile ) {
+      _mesa_printf( "\n" );
+   }
+#endif
+}
+
+
+#endif /* DEBUG_MATH */