Used synchronise script to update files

1 files changed, 409 insertions, 409 deletions

diff --git a/mesalib/src/mesa/math/m_debug_clip.c b/mesalib/src/mesa/math/m_debug_clip.c
index 36d2a9e64..bbad6ef02 100644
--- a/mesalib/src/mesa/math/m_debug_clip.c
+++ b/mesalib/src/mesa/math/m_debug_clip.c
@@ -1,409 +1,409 @@
-/*

- * Mesa 3-D graphics library

- * Version:  6.1

- *

- * Copyright (C) 1999-2005  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 clip_func *clip_tab[2] = {

-   _mesa_clip_tab,

-   _mesa_clip_np_tab

-};

-static char *cnames[2] = {

-   "_mesa_clip_tab",

-   "_mesa_clip_np_tab"

-};

-#ifdef RUN_DEBUG_BENCHMARK

-static char *cstrings[2] = {

-   "clip, perspective divide",

-   "clip, no divide"

-};

-#endif

-

-

-/* =============================================================

- * Reference cliptests

- */

-

-static GLvector4f *ref_cliptest_points4( GLvector4f *clip_vec,

-					 GLvector4f *proj_vec,

-					 GLubyte clipMask[],

-					 GLubyte *orMask,

-					 GLubyte *andMask,

-					 GLboolean viewport_z_clip )

-{

-   const GLuint stride = clip_vec->stride;

-   const GLuint count = clip_vec->count;

-   const GLfloat *from = (GLfloat *)clip_vec->start;

-   GLuint c = 0;

-   GLfloat (*vProj)[4] = (GLfloat (*)[4])proj_vec->start;

-   GLubyte tmpAndMask = *andMask;

-   GLubyte tmpOrMask = *orMask;

-   GLuint i;

-   for ( i = 0 ; i < count ; i++, STRIDE_F(from, stride) ) {

-      const GLfloat cx = from[0];

-      const GLfloat cy = from[1];

-      const GLfloat cz = from[2];

-      const GLfloat cw = from[3];

-      GLubyte mask = 0;

-      if ( -cx + cw < 0 ) mask |= CLIP_RIGHT_BIT;

-      if (  cx + cw < 0 ) mask |= CLIP_LEFT_BIT;

-      if ( -cy + cw < 0 ) mask |= CLIP_TOP_BIT;

-      if (  cy + cw < 0 ) mask |= CLIP_BOTTOM_BIT;

-      if (viewport_z_clip) {

-	 if ( -cz + cw < 0 ) mask |= CLIP_FAR_BIT;

-	 if (  cz + cw < 0 ) mask |= CLIP_NEAR_BIT;

-      }

-      clipMask[i] = mask;

-      if ( mask ) {

-	 c++;

-	 tmpAndMask &= mask;

-	 tmpOrMask |= mask;

-	 vProj[i][0] = 0;

-	 vProj[i][1] = 0;

-	 vProj[i][2] = 0;

-	 vProj[i][3] = 1;

-      } else {

-	 GLfloat oow = 1.0F / cw;

-	 vProj[i][0] = cx * oow;

-	 vProj[i][1] = cy * oow;

-	 vProj[i][2] = cz * oow;

-	 vProj[i][3] = oow;

-      }

-   }

-

-   *orMask = tmpOrMask;

-   *andMask = (GLubyte) (c < count ? 0 : tmpAndMask);

-

-   proj_vec->flags |= VEC_SIZE_4;

-   proj_vec->size = 4;

-   proj_vec->count = clip_vec->count;

-   return proj_vec;

-}

-

-/* Keep these here for now, even though we don't use them...

- */

-static GLvector4f *ref_cliptest_points3( GLvector4f *clip_vec,

-					 GLvector4f *proj_vec,

-					 GLubyte clipMask[],

-					 GLubyte *orMask,

-					 GLubyte *andMask,

-                                         GLboolean viewport_z_clip )

-{

-   const GLuint stride = clip_vec->stride;

-   const GLuint count = clip_vec->count;

-   const GLfloat *from = (GLfloat *)clip_vec->start;

-

-   GLubyte tmpOrMask = *orMask;

-   GLubyte tmpAndMask = *andMask;

-   GLuint i;

-   for ( i = 0 ; i < count ; i++, STRIDE_F(from, stride) ) {

-      const GLfloat cx = from[0], cy = from[1], cz = from[2];

-      GLubyte mask = 0;

-      if ( cx >  1.0 )		mask |= CLIP_RIGHT_BIT;

-      else if ( cx < -1.0 )	mask |= CLIP_LEFT_BIT;

-      if ( cy >  1.0 )		mask |= CLIP_TOP_BIT;

-      else if ( cy < -1.0 )	mask |= CLIP_BOTTOM_BIT;

-      if (viewport_z_clip) {

-         if ( cz >  1.0 )		mask |= CLIP_FAR_BIT;

-         else if ( cz < -1.0 )	mask |= CLIP_NEAR_BIT;

-      }

-      clipMask[i] = mask;

-      tmpOrMask |= mask;

-      tmpAndMask &= mask;

-   }

-

-   *orMask = tmpOrMask;

-   *andMask = tmpAndMask;

-   return clip_vec;

-}

-

-static GLvector4f * ref_cliptest_points2( GLvector4f *clip_vec,

-					  GLvector4f *proj_vec,

-					  GLubyte clipMask[],

-					  GLubyte *orMask,

-					  GLubyte *andMask,

-                                          GLboolean viewport_z_clip )

-{

-   const GLuint stride = clip_vec->stride;

-   const GLuint count = clip_vec->count;

-   const GLfloat *from = (GLfloat *)clip_vec->start;

-

-   GLubyte tmpOrMask = *orMask;

-   GLubyte tmpAndMask = *andMask;

-   GLuint i;

-

-   (void) viewport_z_clip;

-

-   for ( i = 0 ; i < count ; i++, STRIDE_F(from, stride) ) {

-      const GLfloat cx = from[0], cy = from[1];

-      GLubyte mask = 0;

-      if ( cx >  1.0 )		mask |= CLIP_RIGHT_BIT;

-      else if ( cx < -1.0 )	mask |= CLIP_LEFT_BIT;

-      if ( cy >  1.0 )		mask |= CLIP_TOP_BIT;

-      else if ( cy < -1.0 )	mask |= CLIP_BOTTOM_BIT;

-      clipMask[i] = mask;

-      tmpOrMask |= mask;

-      tmpAndMask &= mask;

-   }

-

-   *orMask = tmpOrMask;

-   *andMask = tmpAndMask;

-   return clip_vec;

-}

-

-static clip_func ref_cliptest[5] = {

-   0,

-   0,

-   ref_cliptest_points2,

-   ref_cliptest_points3,

-   ref_cliptest_points4

-};

-

-

-/* =============================================================

- * Cliptest tests

- */

-

-ALIGN16(static GLfloat, s[TEST_COUNT][4]);

-ALIGN16(static GLfloat, d[TEST_COUNT][4]);

-ALIGN16(static GLfloat, r[TEST_COUNT][4]);

-

-

-/**

- * Check if X, Y or Z component of the coordinate is close to W, in terms

- * of the clip test.

- */

-static GLboolean

-xyz_close_to_w(const GLfloat c[4])

-{

-   float k = 0.0001;

-   return (fabs(c[0] - c[3]) < k ||

-           fabs(c[1] - c[3]) < k ||

-           fabs(c[2] - c[3]) < k ||

-           fabs(-c[0] - c[3]) < k ||

-           fabs(-c[1] - c[3]) < k ||

-           fabs(-c[2] - c[3]) < k);

-}

-

-

-

-static int test_cliptest_function( clip_func func, int np,

-				   int psize, long *cycles )

-{

-   GLvector4f source[1], dest[1], ref[1];

-   GLubyte dm[TEST_COUNT], dco, dca;

-   GLubyte rm[TEST_COUNT], rco, rca;

-   int i, j;

-#ifdef  RUN_DEBUG_BENCHMARK

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

-#endif

-   GLboolean viewport_z_clip = GL_TRUE;

-

-   (void) cycles;

-

-   if ( psize > 4 ) {

-      _mesa_problem( NULL, "test_cliptest_function called with psize > 4\n" );

-      return 0;

-   }

-

-   for ( i = 0 ; i < TEST_COUNT ; i++) {

-      ASSIGN_4V( d[i], 0.0, 0.0, 0.0, 1.0 );

-      ASSIGN_4V( s[i], 0.0, 0.0, 0.0, 1.0 );

-      for ( j = 0 ; j < psize ; j++ )

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

-   }

-

-   source->data = (GLfloat(*)[4])s;

-   source->start = (GLfloat *)s;

-   source->count = TEST_COUNT;

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

-   source->size = 4;

-   source->flags = 0;

-

-   dest->data = (GLfloat(*)[4])d;

-   dest->start = (GLfloat *)d;

-   dest->count = TEST_COUNT;

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

-   dest->size = 0;

-   dest->flags = 0;

-

-   ref->data = (GLfloat(*)[4])r;

-   ref->start = (GLfloat *)r;

-   ref->count = TEST_COUNT;

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

-   ref->size = 0;

-   ref->flags = 0;

-

-   dco = rco = 0;

-   dca = rca = CLIP_FRUSTUM_BITS;

-

-   ref_cliptest[psize]( source, ref, rm, &rco, &rca, viewport_z_clip );

-

-   if ( mesa_profile ) {

-      BEGIN_RACE( *cycles );

-      func( source, dest, dm, &dco, &dca, viewport_z_clip );

-      END_RACE( *cycles );

-   }

-   else {

-      func( source, dest, dm, &dco, &dca, viewport_z_clip );

-   }

-

-   if ( dco != rco ) {

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

-      printf( "dco = 0x%02x   rco = 0x%02x\n", dco, rco );

-      return 0;

-   }

-   if ( dca != rca ) {

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

-      printf( "dca = 0x%02x   rca = 0x%02x\n", dca, rca );

-      return 0;

-   }

-   for ( i = 0 ; i < TEST_COUNT ; i++ ) {

-      if ( dm[i] != rm[i] ) {

-         GLfloat *c = source->start;

-         STRIDE_F(c, source->stride * i);

-         if (psize == 4 && xyz_close_to_w(c)) {

-            /* The coordinate is very close to the clip plane.  The clipmask

-             * may vary depending on code path, but that's OK.

-             */

-            continue;

-         }

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

-	 printf( "mask[%d] = 0x%02x   ref mask[%d] = 0x%02x\n", i, dm[i], i,rm[i] );

-         printf(" coord = %f, %f, %f, %f\n",

-                c[0], c[1], c[2], c[3]);

-	 return 0;

-      }

-   }

-

-   /* Only verify output on projected points4 case.  FIXME: Do we need

-    * to test other cases?

-    */

-   if ( np || psize < 4 )

-      return 1;

-

-   for ( i = 0 ; i < TEST_COUNT ; i++ ) {

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

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

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

-            printf( "(i = %i, j = %i)  dm = 0x%02x   rm = 0x%02x\n",

-		    i, j, dm[i], rm[i] );

-            printf( "%f \t %f \t [diff = %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 [diff = %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 [diff = %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] ) );

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

-		    d[i][3], r[i][3], r[i][3]-d[i][3],

-		    MAX_PRECISION - significand_match( d[i][3], r[i][3] ) );

-            return 0;

-         }

-      }

-   }

-

-   return 1;

-}

-

-void _math_test_all_cliptest_functions( char *description )

-{

-   int np, psize;

-   long benchmark_tab[2][4];

-   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();

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

-      }

-      printf( "cliptest results after hooking in %s functions:\n", description );

-   }

-#endif

-

-#ifdef RUN_DEBUG_BENCHMARK

-   if ( mesa_profile ) {

-      printf( "\n\t" );

-      for ( psize = 2 ; psize <= 4 ; psize++ ) {

-	 printf( " p%d\t", psize );

-      }

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

-   }

-#endif

-

-   for ( np = 0 ; np < 2 ; np++ ) {

-      for ( psize = 2 ; psize <= 4 ; psize++ ) {

-	 clip_func func = clip_tab[np][psize];

-	 long *cycles = &(benchmark_tab[np][psize-1]);

-

-	 if ( test_cliptest_function( func, np, psize, cycles ) == 0 ) {

-	    char buf[100];

-	    sprintf( buf, "%s[%d] failed test (%s)",

-		     cnames[np], psize, description );

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

-	 }

-#ifdef RUN_DEBUG_BENCHMARK

-	 if ( mesa_profile )

-	    printf( " %li\t", benchmark_tab[np][psize-1] );

-#endif

-      }

-#ifdef RUN_DEBUG_BENCHMARK

-      if ( mesa_profile )

-	 printf( " | [%s]\n\t", cstrings[np] );

-#endif

-   }

-#ifdef RUN_DEBUG_BENCHMARK

-   if ( mesa_profile )

-      printf( "\n" );

-#endif

-}

-

-

-#endif /* DEBUG_MATH */

+/*
+ * Mesa 3-D graphics library
+ * Version:  6.1
+ *
+ * Copyright (C) 1999-2005  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 clip_func *clip_tab[2] = {
+   _mesa_clip_tab,
+   _mesa_clip_np_tab
+};
+static char *cnames[2] = {
+   "_mesa_clip_tab",
+   "_mesa_clip_np_tab"
+};
+#ifdef RUN_DEBUG_BENCHMARK
+static char *cstrings[2] = {
+   "clip, perspective divide",
+   "clip, no divide"
+};
+#endif
+
+
+/* =============================================================
+ * Reference cliptests
+ */
+
+static GLvector4f *ref_cliptest_points4( GLvector4f *clip_vec,
+					 GLvector4f *proj_vec,
+					 GLubyte clipMask[],
+					 GLubyte *orMask,
+					 GLubyte *andMask,
+					 GLboolean viewport_z_clip )
+{
+   const GLuint stride = clip_vec->stride;
+   const GLuint count = clip_vec->count;
+   const GLfloat *from = (GLfloat *)clip_vec->start;
+   GLuint c = 0;
+   GLfloat (*vProj)[4] = (GLfloat (*)[4])proj_vec->start;
+   GLubyte tmpAndMask = *andMask;
+   GLubyte tmpOrMask = *orMask;
+   GLuint i;
+   for ( i = 0 ; i < count ; i++, STRIDE_F(from, stride) ) {
+      const GLfloat cx = from[0];
+      const GLfloat cy = from[1];
+      const GLfloat cz = from[2];
+      const GLfloat cw = from[3];
+      GLubyte mask = 0;
+      if ( -cx + cw < 0 ) mask |= CLIP_RIGHT_BIT;
+      if (  cx + cw < 0 ) mask |= CLIP_LEFT_BIT;
+      if ( -cy + cw < 0 ) mask |= CLIP_TOP_BIT;
+      if (  cy + cw < 0 ) mask |= CLIP_BOTTOM_BIT;
+      if (viewport_z_clip) {
+	 if ( -cz + cw < 0 ) mask |= CLIP_FAR_BIT;
+	 if (  cz + cw < 0 ) mask |= CLIP_NEAR_BIT;
+      }
+      clipMask[i] = mask;
+      if ( mask ) {
+	 c++;
+	 tmpAndMask &= mask;
+	 tmpOrMask |= mask;
+	 vProj[i][0] = 0;
+	 vProj[i][1] = 0;
+	 vProj[i][2] = 0;
+	 vProj[i][3] = 1;
+      } else {
+	 GLfloat oow = 1.0F / cw;
+	 vProj[i][0] = cx * oow;
+	 vProj[i][1] = cy * oow;
+	 vProj[i][2] = cz * oow;
+	 vProj[i][3] = oow;
+      }
+   }
+
+   *orMask = tmpOrMask;
+   *andMask = (GLubyte) (c < count ? 0 : tmpAndMask);
+
+   proj_vec->flags |= VEC_SIZE_4;
+   proj_vec->size = 4;
+   proj_vec->count = clip_vec->count;
+   return proj_vec;
+}
+
+/* Keep these here for now, even though we don't use them...
+ */
+static GLvector4f *ref_cliptest_points3( GLvector4f *clip_vec,
+					 GLvector4f *proj_vec,
+					 GLubyte clipMask[],
+					 GLubyte *orMask,
+					 GLubyte *andMask,
+                                         GLboolean viewport_z_clip )
+{
+   const GLuint stride = clip_vec->stride;
+   const GLuint count = clip_vec->count;
+   const GLfloat *from = (GLfloat *)clip_vec->start;
+
+   GLubyte tmpOrMask = *orMask;
+   GLubyte tmpAndMask = *andMask;
+   GLuint i;
+   for ( i = 0 ; i < count ; i++, STRIDE_F(from, stride) ) {
+      const GLfloat cx = from[0], cy = from[1], cz = from[2];
+      GLubyte mask = 0;
+      if ( cx >  1.0 )		mask |= CLIP_RIGHT_BIT;
+      else if ( cx < -1.0 )	mask |= CLIP_LEFT_BIT;
+      if ( cy >  1.0 )		mask |= CLIP_TOP_BIT;
+      else if ( cy < -1.0 )	mask |= CLIP_BOTTOM_BIT;
+      if (viewport_z_clip) {
+         if ( cz >  1.0 )		mask |= CLIP_FAR_BIT;
+         else if ( cz < -1.0 )	mask |= CLIP_NEAR_BIT;
+      }
+      clipMask[i] = mask;
+      tmpOrMask |= mask;
+      tmpAndMask &= mask;
+   }
+
+   *orMask = tmpOrMask;
+   *andMask = tmpAndMask;
+   return clip_vec;
+}
+
+static GLvector4f * ref_cliptest_points2( GLvector4f *clip_vec,
+					  GLvector4f *proj_vec,
+					  GLubyte clipMask[],
+					  GLubyte *orMask,
+					  GLubyte *andMask,
+                                          GLboolean viewport_z_clip )
+{
+   const GLuint stride = clip_vec->stride;
+   const GLuint count = clip_vec->count;
+   const GLfloat *from = (GLfloat *)clip_vec->start;
+
+   GLubyte tmpOrMask = *orMask;
+   GLubyte tmpAndMask = *andMask;
+   GLuint i;
+
+   (void) viewport_z_clip;
+
+   for ( i = 0 ; i < count ; i++, STRIDE_F(from, stride) ) {
+      const GLfloat cx = from[0], cy = from[1];
+      GLubyte mask = 0;
+      if ( cx >  1.0 )		mask |= CLIP_RIGHT_BIT;
+      else if ( cx < -1.0 )	mask |= CLIP_LEFT_BIT;
+      if ( cy >  1.0 )		mask |= CLIP_TOP_BIT;
+      else if ( cy < -1.0 )	mask |= CLIP_BOTTOM_BIT;
+      clipMask[i] = mask;
+      tmpOrMask |= mask;
+      tmpAndMask &= mask;
+   }
+
+   *orMask = tmpOrMask;
+   *andMask = tmpAndMask;
+   return clip_vec;
+}
+
+static clip_func ref_cliptest[5] = {
+   0,
+   0,
+   ref_cliptest_points2,
+   ref_cliptest_points3,
+   ref_cliptest_points4
+};
+
+
+/* =============================================================
+ * Cliptest tests
+ */
+
+ALIGN16(static GLfloat, s[TEST_COUNT][4]);
+ALIGN16(static GLfloat, d[TEST_COUNT][4]);
+ALIGN16(static GLfloat, r[TEST_COUNT][4]);
+
+
+/**
+ * Check if X, Y or Z component of the coordinate is close to W, in terms
+ * of the clip test.
+ */
+static GLboolean
+xyz_close_to_w(const GLfloat c[4])
+{
+   float k = 0.0001;
+   return (fabs(c[0] - c[3]) < k ||
+           fabs(c[1] - c[3]) < k ||
+           fabs(c[2] - c[3]) < k ||
+           fabs(-c[0] - c[3]) < k ||
+           fabs(-c[1] - c[3]) < k ||
+           fabs(-c[2] - c[3]) < k);
+}
+
+
+
+static int test_cliptest_function( clip_func func, int np,
+				   int psize, long *cycles )
+{
+   GLvector4f source[1], dest[1], ref[1];
+   GLubyte dm[TEST_COUNT], dco, dca;
+   GLubyte rm[TEST_COUNT], rco, rca;
+   int i, j;
+#ifdef  RUN_DEBUG_BENCHMARK
+   int cycle_i;                /* the counter for the benchmarks we run */
+#endif
+   GLboolean viewport_z_clip = GL_TRUE;
+
+   (void) cycles;
+
+   if ( psize > 4 ) {
+      _mesa_problem( NULL, "test_cliptest_function called with psize > 4\n" );
+      return 0;
+   }
+
+   for ( i = 0 ; i < TEST_COUNT ; i++) {
+      ASSIGN_4V( d[i], 0.0, 0.0, 0.0, 1.0 );
+      ASSIGN_4V( s[i], 0.0, 0.0, 0.0, 1.0 );
+      for ( j = 0 ; j < psize ; j++ )
+         s[i][j] = rnd();
+   }
+
+   source->data = (GLfloat(*)[4])s;
+   source->start = (GLfloat *)s;
+   source->count = TEST_COUNT;
+   source->stride = sizeof(s[0]);
+   source->size = 4;
+   source->flags = 0;
+
+   dest->data = (GLfloat(*)[4])d;
+   dest->start = (GLfloat *)d;
+   dest->count = TEST_COUNT;
+   dest->stride = sizeof(float[4]);
+   dest->size = 0;
+   dest->flags = 0;
+
+   ref->data = (GLfloat(*)[4])r;
+   ref->start = (GLfloat *)r;
+   ref->count = TEST_COUNT;
+   ref->stride = sizeof(float[4]);
+   ref->size = 0;
+   ref->flags = 0;
+
+   dco = rco = 0;
+   dca = rca = CLIP_FRUSTUM_BITS;
+
+   ref_cliptest[psize]( source, ref, rm, &rco, &rca, viewport_z_clip );
+
+   if ( mesa_profile ) {
+      BEGIN_RACE( *cycles );
+      func( source, dest, dm, &dco, &dca, viewport_z_clip );
+      END_RACE( *cycles );
+   }
+   else {
+      func( source, dest, dm, &dco, &dca, viewport_z_clip );
+   }
+
+   if ( dco != rco ) {
+      printf( "\n-----------------------------\n" );
+      printf( "dco = 0x%02x   rco = 0x%02x\n", dco, rco );
+      return 0;
+   }
+   if ( dca != rca ) {
+      printf( "\n-----------------------------\n" );
+      printf( "dca = 0x%02x   rca = 0x%02x\n", dca, rca );
+      return 0;
+   }
+   for ( i = 0 ; i < TEST_COUNT ; i++ ) {
+      if ( dm[i] != rm[i] ) {
+         GLfloat *c = source->start;
+         STRIDE_F(c, source->stride * i);
+         if (psize == 4 && xyz_close_to_w(c)) {
+            /* The coordinate is very close to the clip plane.  The clipmask
+             * may vary depending on code path, but that's OK.
+             */
+            continue;
+         }
+	 printf( "\n-----------------------------\n" );
+	 printf( "mask[%d] = 0x%02x   ref mask[%d] = 0x%02x\n", i, dm[i], i,rm[i] );
+         printf(" coord = %f, %f, %f, %f\n",
+                c[0], c[1], c[2], c[3]);
+	 return 0;
+      }
+   }
+
+   /* Only verify output on projected points4 case.  FIXME: Do we need
+    * to test other cases?
+    */
+   if ( np || psize < 4 )
+      return 1;
+
+   for ( i = 0 ; i < TEST_COUNT ; i++ ) {
+      for ( j = 0 ; j < 4 ; j++ ) {
+         if ( significand_match( d[i][j], r[i][j] ) < REQUIRED_PRECISION ) {
+            printf( "\n-----------------------------\n" );
+            printf( "(i = %i, j = %i)  dm = 0x%02x   rm = 0x%02x\n",
+		    i, j, dm[i], rm[i] );
+            printf( "%f \t %f \t [diff = %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 [diff = %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 [diff = %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] ) );
+            printf( "%f \t %f \t [diff = %e - %i bit missed]\n",
+		    d[i][3], r[i][3], r[i][3]-d[i][3],
+		    MAX_PRECISION - significand_match( d[i][3], r[i][3] ) );
+            return 0;
+         }
+      }
+   }
+
+   return 1;
+}
+
+void _math_test_all_cliptest_functions( char *description )
+{
+   int np, psize;
+   long benchmark_tab[2][4];
+   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();
+	 printf( "counter overhead: %ld cycles\n\n", counter_overhead );
+      }
+      printf( "cliptest results after hooking in %s functions:\n", description );
+   }
+#endif
+
+#ifdef RUN_DEBUG_BENCHMARK
+   if ( mesa_profile ) {
+      printf( "\n\t" );
+      for ( psize = 2 ; psize <= 4 ; psize++ ) {
+	 printf( " p%d\t", psize );
+      }
+      printf( "\n--------------------------------------------------------\n\t" );
+   }
+#endif
+
+   for ( np = 0 ; np < 2 ; np++ ) {
+      for ( psize = 2 ; psize <= 4 ; psize++ ) {
+	 clip_func func = clip_tab[np][psize];
+	 long *cycles = &(benchmark_tab[np][psize-1]);
+
+	 if ( test_cliptest_function( func, np, psize, cycles ) == 0 ) {
+	    char buf[100];
+	    sprintf( buf, "%s[%d] failed test (%s)",
+		     cnames[np], psize, description );
+	    _mesa_problem( NULL, "%s", buf );
+	 }
+#ifdef RUN_DEBUG_BENCHMARK
+	 if ( mesa_profile )
+	    printf( " %li\t", benchmark_tab[np][psize-1] );
+#endif
+      }
+#ifdef RUN_DEBUG_BENCHMARK
+      if ( mesa_profile )
+	 printf( " | [%s]\n\t", cstrings[np] );
+#endif
+   }
+#ifdef RUN_DEBUG_BENCHMARK
+   if ( mesa_profile )
+      printf( "\n" );
+#endif
+}
+
+
+#endif /* DEBUG_MATH */