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-rw-r--r--xc/extras/Mesa/src/math/m_debug_vertex.c538
1 files changed, 538 insertions, 0 deletions
diff --git a/xc/extras/Mesa/src/math/m_debug_vertex.c b/xc/extras/Mesa/src/math/m_debug_vertex.c
new file mode 100644
index 000000000..8860f2b6f
--- /dev/null
+++ b/xc/extras/Mesa/src/math/m_debug_vertex.c
@@ -0,0 +1,538 @@
+/* $Id: m_debug_vertex.c,v 1.2 2002/02/14 01:59:39 dawes Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version: 3.5
+ *
+ * Copyright (C) 1999-2001 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 <gareth@valinux.com>
+ */
+
+#include "glheader.h"
+#include "context.h"
+#include "macros.h"
+#include "mem.h"
+
+#include "m_matrix.h"
+#include "m_vertices.h"
+#include "m_xform.h"
+
+#include "m_debug.h"
+#include "m_debug_util.h"
+
+
+#ifdef DEBUG /* This code only used for debugging */
+
+
+#define NUM_V16_FUNCS 4
+
+#ifdef RUN_DEBUG_BENCHMARK
+static char *v16_strings[NUM_V16_FUNCS] = {
+ "_mesa_xform_points3_v16_general",
+ "_mesa_cliptest_points4_v16",
+ "_mesa_project_v16",
+ "_mesa_project_clipped_v16"
+};
+#endif
+
+
+/* =============================================================
+ * Reference transformations
+ */
+
+static void ref_transform_v16( GLfloat *f,
+ const GLfloat *m,
+ const GLfloat *obj,
+ GLuint obj_stride,
+ GLuint count )
+{
+ GLuint i;
+
+ for ( i = 0 ; i < count ; i++, STRIDE_F(obj, obj_stride), f += 16 ) {
+ const GLfloat ox = obj[0], oy = obj[1], oz = obj[2];
+ f[0] = m[0] * ox + m[4] * oy + m[8] * oz + m[12];
+ f[1] = m[1] * ox + m[5] * oy + m[9] * oz + m[13];
+ f[2] = m[2] * ox + m[6] * oy + m[10] * oz + m[14];
+ f[3] = m[3] * ox + m[7] * oy + m[11] * oz + m[15];
+ }
+}
+
+static void ref_cliptest_v16( GLfloat *first,
+ GLfloat *last,
+ GLubyte *p_clipOr,
+ GLubyte *p_clipAnd,
+ GLubyte *clipmask )
+{
+ GLubyte clipAnd = (GLubyte) ~0;
+ GLubyte clipOr = 0;
+ GLfloat *f = first;
+ static int i;
+ i = 0;
+
+ for ( ; f != last ; f += 16, clipmask++, i++ ) {
+ const GLfloat cx = f[0];
+ const GLfloat cy = f[1];
+ const GLfloat cz = f[2];
+ const GLfloat cw = f[3];
+ GLubyte mask = 0;
+
+ if (cx > cw) mask |= CLIP_RIGHT_BIT;
+ if (cx < -cw) mask |= CLIP_LEFT_BIT;
+ if (cy > cw) mask |= CLIP_TOP_BIT;
+ if (cy < -cw) mask |= CLIP_BOTTOM_BIT;
+ if (cz > cw) mask |= CLIP_FAR_BIT;
+ if (cz < -cw) mask |= CLIP_NEAR_BIT;
+
+ *clipmask = mask;
+ clipAnd &= mask;
+ clipOr |= mask;
+ }
+
+ (*p_clipOr) |= clipOr;
+ (*p_clipAnd) &= clipAnd;
+}
+
+static void ref_project_verts( GLfloat *first,
+ GLfloat *last,
+ const GLfloat *m,
+ GLuint stride )
+{
+ const GLfloat sx = m[0], sy = m[5], sz = m[10];
+ const GLfloat tx = m[12], ty = m[13], tz = m[14];
+ GLfloat *f;
+
+ for (f = first; f != last; STRIDE_F(f, stride)) {
+ const GLfloat oow = 1.0F / f[3];
+ f[0] = sx * f[0] * oow + tx;
+ f[1] = sy * f[1] * oow + ty;
+ f[2] = sz * f[2] * oow + tz;
+ f[3] = oow;
+ }
+}
+
+static void ref_project_clipped_verts( GLfloat *first,
+ GLfloat *last,
+ const GLfloat *m,
+ GLuint stride,
+ const GLubyte *clipmask )
+{
+ const GLfloat sx = m[0], sy = m[5], sz = m[10];
+ const GLfloat tx = m[12], ty = m[13], tz = m[14];
+ GLfloat *f;
+
+ for ( f = first ; f != last ; STRIDE_F(f, stride), clipmask++ ) {
+ if (!(*clipmask)) {
+ const GLfloat oow = 1.0F / f[3];
+ f[0] = sx * f[0] * oow + tx;
+ f[1] = sy * f[1] * oow + ty;
+ f[2] = sz * f[2] * oow + tz;
+ f[3] = oow;
+ }
+ }
+}
+
+
+
+/* =============================================================
+ * Vertex transformation, clipping etc tests
+ */
+
+static GLfloat ALIGN16(s[TEST_COUNT][4]);
+static GLfloat ALIGN16(d[TEST_COUNT][16]);
+static GLfloat ALIGN16(r[TEST_COUNT][16]);
+
+static int test_transform_function( long *cycles )
+{
+ GLvector4f source[1];
+ GLfloat *m;
+ int i, j;
+#ifdef RUN_DEBUG_BENCHMARK
+ int cycle_i; /* the counter for the benchmarks we run */
+#endif
+
+ m = (GLfloat *) ALIGN_MALLOC( 16 * sizeof(GLfloat), 16 );
+
+ 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;
+
+ for ( i = 0 ; i < TEST_COUNT ; i++ ) {
+ d[i][0] = s[i][0] = 0.0;
+ d[i][1] = s[i][1] = 0.0;
+ d[i][2] = s[i][2] = 0.0;
+ d[i][3] = s[i][3] = 1.0;
+ for ( j = 0 ; j < 3 ; 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;
+
+ ref_transform_v16( (GLfloat *)r,
+ m,
+ source->start,
+ source->stride,
+ TEST_COUNT );
+
+ if ( mesa_profile ) {
+ BEGIN_RACE( *cycles );
+ _mesa_xform_points3_v16_general( (GLfloat *)d,
+ m,
+ source->start,
+ source->stride,
+ TEST_COUNT );
+ END_RACE( *cycles );
+ } else {
+ _mesa_xform_points3_v16_general( (GLfloat *)d,
+ m,
+ source->start,
+ source->stride,
+ TEST_COUNT );
+ }
+
+ ALIGN_FREE( m );
+
+ 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" );
+ printf( "(i = %i, j = %i)\n", i, j );
+ 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;
+}
+
+static int test_cliptest_function( long *cycles )
+{
+ GLvector4f source[1];
+ GLubyte dco, dca, rco, rca;
+ GLubyte dm[TEST_COUNT], rm[TEST_COUNT];
+ GLfloat *m;
+ int i, j;
+#ifdef RUN_DEBUG_BENCHMARK
+ int cycle_i; /* the counter for the benchmarks we run */
+#endif
+
+ m = (GLfloat *) ALIGN_MALLOC( 16 * sizeof(GLfloat), 16 );
+
+ init_matrix( m );
+
+ for ( i = 0 ; i < TEST_COUNT ; i++ ) {
+ d[i][0] = s[i][0] = 0.0;
+ d[i][1] = s[i][1] = 0.0;
+ d[i][2] = s[i][2] = 0.0;
+ d[i][3] = s[i][3] = 1.0;
+ for ( j = 0 ; j < 3 ; 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;
+
+ /* Build up a reference list of transformed points
+ */
+ ref_transform_v16( (GLfloat *)r,
+ m,
+ source->start,
+ source->stride,
+ TEST_COUNT );
+
+ dca = rca = ~0;
+ dco = rco = 0;
+
+ ref_cliptest_v16( (GLfloat *)r,
+ (GLfloat *)&r[TEST_COUNT][0],
+ &rco,
+ &rca,
+ &rm[0] );
+
+ if ( mesa_profile ) {
+ BEGIN_RACE( *cycles );
+ _mesa_cliptest_points4_v16( (GLfloat *)r,
+ (GLfloat *)&r[TEST_COUNT][0],
+ &dco,
+ &dca,
+ &dm[0] );
+ END_RACE( *cycles );
+ } else {
+ _mesa_cliptest_points4_v16( (GLfloat *)r,
+ (GLfloat *)&r[TEST_COUNT][0],
+ &dco,
+ &dca,
+ dm );
+ }
+
+ ALIGN_FREE( m );
+
+ if ( dco != rco ) {
+ printf( "-----------------------------\n" );
+ printf( "dco = 0x%02x rco = 0x%02x\n", dco, rco );
+ return 0;
+ }
+ if ( dca != rca ) {
+ printf( "-----------------------------\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] ) {
+ printf( "-----------------------------\n" );
+ printf( "(i = %i)\n", i );
+ printf( "dm = 0x%02x rm = 0x%02x\n", dm[i], rm[i] );
+ return 0;
+ }
+ }
+
+ return 1;
+}
+
+static int test_project_function( long *cycles, int clipped )
+{
+ GLvector4f source[1];
+ GLubyte co, ca;
+ GLubyte mask[TEST_COUNT];
+ GLfloat *m;
+ int i, j;
+#ifdef RUN_DEBUG_BENCHMARK
+ int cycle_i; /* the counter for the benchmarks we run */
+#endif
+
+ m = (GLfloat *) ALIGN_MALLOC( 16 * sizeof(GLfloat), 16 );
+
+ init_matrix( m );
+
+ for ( i = 0 ; i < TEST_COUNT ; i++ ) {
+ d[i][0] = s[i][0] = 0.0;
+ d[i][1] = s[i][1] = 0.0;
+ d[i][2] = s[i][2] = 0.0;
+ d[i][3] = s[i][3] = 1.0;
+ for ( j = 0 ; j < 3 ; 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;
+
+ /* Build up a reference list of transformed points
+ */
+ ref_transform_v16( (GLfloat *)d,
+ m,
+ source->start,
+ source->stride,
+ TEST_COUNT );
+ ref_transform_v16( (GLfloat *)r,
+ m,
+ source->start,
+ source->stride,
+ TEST_COUNT );
+
+ if ( clipped ) {
+ ca = ~0;
+ co = 0;
+ ref_cliptest_v16( (GLfloat *)r,
+ (GLfloat *)&r[TEST_COUNT][0],
+ &co,
+ &ca,
+ mask );
+ ref_project_clipped_verts( (GLfloat *)r,
+ (GLfloat *)&r[TEST_COUNT][0],
+ m,
+ 16 * 4,
+ mask );
+ } else {
+ ref_project_verts( (GLfloat *)r,
+ (GLfloat *)&r[TEST_COUNT][0],
+ m,
+ 16 * 4 );
+ }
+
+ if ( mesa_profile ) {
+ if ( clipped ) {
+ /*BEGIN_RACE( *cycles );*/
+ _mesa_project_clipped_v16( (GLfloat *)d,
+ (GLfloat *)&d[TEST_COUNT][0],
+ m,
+ 16 * 4,
+ mask );
+ /*END_RACE( *cycles );*/
+ } else {
+ /*BEGIN_RACE( *cycles );*/
+ _mesa_project_v16( (GLfloat *)d,
+ (GLfloat *)&d[TEST_COUNT][0],
+ m,
+ 16 * 4 );
+ /*END_RACE( *cycles );*/
+ }
+ } else {
+ if ( clipped ) {
+ _mesa_project_clipped_v16( (GLfloat *)d,
+ (GLfloat *)&d[TEST_COUNT][0],
+ m,
+ 16 * 4,
+ mask );
+ } else {
+ _mesa_project_v16( (GLfloat *)d,
+ (GLfloat *)&d[TEST_COUNT][0],
+ m,
+ 16 * 4 );
+ }
+ }
+
+ ALIGN_FREE( m );
+
+ 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" );
+ printf( "(i = %i, j = %i)\n", i, j );
+ 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_vertex_functions( char *description )
+{
+ long benchmark_tab[NUM_V16_FUNCS];
+ long *cycles;
+ static int first_time = 1;
+
+ if ( first_time ) {
+ first_time = 0;
+ mesa_profile = getenv( "MESA_PROFILE" );
+ }
+
+#ifdef RUN_DEBUG_BENCHMARK
+ if ( mesa_profile ) {
+ int i;
+ if ( !counter_overhead ) {
+ INIT_COUNTER();
+ printf( "counter overhead: %ld cycles\n\n", counter_overhead );
+ }
+ printf( "fastpath vertex results after hooking in %s functions:\n",
+ description );
+ printf( "\n--------------------------------------------------------\n" );
+
+ for ( i = 0 ; i < NUM_V16_FUNCS ; i++ ) {
+ benchmark_tab[i] = 0;
+ }
+ }
+#endif
+
+ /* Test fastpath transformation
+ */
+ cycles = &benchmark_tab[0];
+
+ if ( test_transform_function( cycles ) == 0 ) {
+ char buf[100];
+ sprintf( buf, "_mesa_xform_points3_v16_general failed test (%s)",
+ description );
+ _mesa_problem( NULL, buf );
+ }
+
+ /* Test fastpath clipping
+ */
+ cycles = &benchmark_tab[1];
+
+ if ( test_cliptest_function( cycles ) == 0 ) {
+ char buf[100];
+ sprintf( buf, "_mesa_cliptest_points4_v16 failed test (%s)",
+ description );
+ _mesa_problem( NULL, buf );
+ }
+
+ /* Test fastpath projection
+ */
+ cycles = &benchmark_tab[2];
+
+ if ( test_project_function( cycles, 0 ) == 0 ) {
+ char buf[100];
+ sprintf( buf, "_mesa_project_v16 failed test (%s)",
+ description );
+ _mesa_problem( NULL, buf );
+ }
+
+ cycles = &benchmark_tab[3];
+
+ if ( test_project_function( cycles, 1 ) == 0 ) {
+ char buf[100];
+ sprintf( buf, "_mesa_project_clipped_v16 failed test (%s)",
+ description );
+ _mesa_problem( NULL, buf );
+ }
+
+
+#ifdef RUN_DEBUG_BENCHMARK
+ if ( mesa_profile ) {
+ int i;
+ for ( i = 0 ; i < NUM_V16_FUNCS ; i++ ) {
+ printf( " %li\t | [%s]\n", benchmark_tab[i], v16_strings[i] );
+ }
+ printf( "\n" );
+ }
+#endif
+}
+
+
+#endif /* DEBUG */
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