1 /* $Id: m_debug_norm.c,v 1.10 2002/10/24 23:57:24 brianp Exp $ */
4 * Mesa 3-D graphics library
7 * Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
23 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 * Gareth Hughes <gareth@valinux.com>
40 #include "m_debug_util.h"
43 #ifdef DEBUG /* This code only used for debugging */
46 static int m_norm_identity
[16] = {
52 static int m_norm_general
[16] = {
58 static int m_norm_no_rot
[16] = {
64 static int *norm_templates
[8] = {
74 static int norm_types
[8] = {
75 NORM_TRANSFORM_NO_ROT
,
76 NORM_TRANSFORM_NO_ROT
| NORM_RESCALE
,
77 NORM_TRANSFORM_NO_ROT
| NORM_NORMALIZE
,
79 NORM_TRANSFORM
| NORM_RESCALE
,
80 NORM_TRANSFORM
| NORM_NORMALIZE
,
84 static int norm_scale_types
[8] = { /* rescale factor */
85 NIL
, /* NIL disables rescaling */
94 static int norm_normalize_types
[8] = { /* normalizing ?? (no = 0) */
104 static char *norm_strings
[8] = {
105 "NORM_TRANSFORM_NO_ROT",
106 "NORM_TRANSFORM_NO_ROT | NORM_RESCALE",
107 "NORM_TRANSFORM_NO_ROT | NORM_NORMALIZE",
109 "NORM_TRANSFORM | NORM_RESCALE",
110 "NORM_TRANSFORM | NORM_NORMALIZE",
116 /* =============================================================
117 * Reference transformations
120 static void ref_norm_transform_rescale( const GLmatrix
*mat
,
122 const GLvector4f
*in
,
123 const GLfloat
*lengths
,
127 const GLfloat
*s
= in
->start
;
128 const GLfloat
*m
= mat
->inv
;
129 GLfloat (*out
)[4] = (GLfloat (*)[4]) dest
->start
;
133 for ( i
= 0 ; i
< in
->count
; i
++ ) {
136 TRANSFORM_NORMAL( t
, s
, m
);
137 SCALE_SCALAR_3V( out
[i
], scale
, t
);
139 s
= (GLfloat
*)((char *)s
+ in
->stride
);
143 static void ref_norm_transform_normalize( const GLmatrix
*mat
,
145 const GLvector4f
*in
,
146 const GLfloat
*lengths
,
150 const GLfloat
*s
= in
->start
;
151 const GLfloat
*m
= mat
->inv
;
152 GLfloat (*out
)[4] = (GLfloat (*)[4]) dest
->start
;
154 for ( i
= 0 ; i
< in
->count
; i
++ ) {
157 TRANSFORM_NORMAL( t
, s
, m
);
160 GLfloat len
= LEN_SQUARED_3FV( t
);
162 /* Hmmm, don't know how we could test the precalculated
165 scale
= 1.0 / sqrt( len
);
166 SCALE_SCALAR_3V( out
[i
], scale
, t
);
168 out
[i
][0] = out
[i
][1] = out
[i
][2] = 0;
172 SCALE_SCALAR_3V( out
[i
], scale
, t
);
175 s
= (GLfloat
*)((char *)s
+ in
->stride
);
180 /* =============================================================
181 * Normal transformation tests
184 static void init_matrix( GLfloat
*m
)
186 m
[0] = 63.0; m
[4] = 43.0; m
[ 8] = 29.0; m
[12] = 43.0;
187 m
[1] = 55.0; m
[5] = 17.0; m
[ 9] = 31.0; m
[13] = 7.0;
188 m
[2] = 44.0; m
[6] = 9.0; m
[10] = 7.0; m
[14] = 3.0;
189 m
[3] = 11.0; m
[7] = 23.0; m
[11] = 91.0; m
[15] = 9.0;
193 static int test_norm_function( normal_func func
, int mtype
, long *cycles
)
195 GLvector4f source
[1], dest
[1], dest2
[1], ref
[1], ref2
[1];
197 GLfloat s
[TEST_COUNT
][5], d
[TEST_COUNT
][4], r
[TEST_COUNT
][4];
198 GLfloat d2
[TEST_COUNT
][4], r2
[TEST_COUNT
][4], length
[TEST_COUNT
];
202 #ifdef RUN_DEBUG_BENCHMARK
203 int cycle_i
; /* the counter for the benchmarks we run */
208 mat
->m
= (GLfloat
*) ALIGN_MALLOC( 16 * sizeof(GLfloat
), 16 );
209 mat
->inv
= m
= mat
->m
;
213 scale
= 1.0F
+ rnd () * norm_scale_types
[mtype
];
215 for ( i
= 0 ; i
< 4 ; i
++ ) {
216 for ( j
= 0 ; j
< 4 ; j
++ ) {
217 switch ( norm_templates
[mtype
][i
* 4 + j
] ) {
235 for ( i
= 0 ; i
< TEST_COUNT
; i
++ ) {
236 ASSIGN_3V( d
[i
], 0.0, 0.0, 0.0 );
237 ASSIGN_3V( s
[i
], 0.0, 0.0, 0.0 );
238 ASSIGN_3V( d2
[i
], 0.0, 0.0, 0.0 );
239 for ( j
= 0 ; j
< 3 ; j
++ )
241 length
[i
] = 1 / sqrt( LEN_SQUARED_3FV( s
[i
] ) );
244 source
->data
= (GLfloat(*)[4]) s
;
245 source
->start
= (GLfloat
*) s
;
246 source
->count
= TEST_COUNT
;
247 source
->stride
= sizeof(s
[0]);
251 dest
->start
= (GLfloat
*) d
;
252 dest
->count
= TEST_COUNT
;
253 dest
->stride
= sizeof(float[4]);
257 dest2
->start
= (GLfloat
*) d2
;
258 dest2
->count
= TEST_COUNT
;
259 dest2
->stride
= sizeof(float[4]);
263 ref
->start
= (GLfloat
*) r
;
264 ref
->count
= TEST_COUNT
;
265 ref
->stride
= sizeof(float[4]);
269 ref2
->start
= (GLfloat
*) r2
;
270 ref2
->count
= TEST_COUNT
;
271 ref2
->stride
= sizeof(float[4]);
274 if ( norm_normalize_types
[mtype
] == 0 ) {
275 ref_norm_transform_rescale( mat
, scale
, source
, NULL
, ref
);
277 ref_norm_transform_normalize( mat
, scale
, source
, NULL
, ref
);
278 ref_norm_transform_normalize( mat
, scale
, source
, length
, ref2
);
281 if ( mesa_profile
) {
282 BEGIN_RACE( *cycles
);
283 func( mat
, scale
, source
, NULL
, dest
);
285 func( mat
, scale
, source
, length
, dest2
);
287 func( mat
, scale
, source
, NULL
, dest
);
288 func( mat
, scale
, source
, length
, dest2
);
291 for ( i
= 0 ; i
< TEST_COUNT
; i
++ ) {
292 for ( j
= 0 ; j
< 3 ; j
++ ) {
293 if ( significand_match( d
[i
][j
], r
[i
][j
] ) < REQUIRED_PRECISION
) {
294 _mesa_printf(NULL
, "-----------------------------\n" );
295 _mesa_printf(NULL
, "(i = %i, j = %i)\n", i
, j
);
296 _mesa_printf(NULL
, "%f \t %f \t [ratio = %e - %i bit missed]\n",
297 d
[i
][0], r
[i
][0], r
[i
][0]/d
[i
][0],
298 MAX_PRECISION
- significand_match( d
[i
][0], r
[i
][0] ) );
299 _mesa_printf(NULL
, "%f \t %f \t [ratio = %e - %i bit missed]\n",
300 d
[i
][1], r
[i
][1], r
[i
][1]/d
[i
][1],
301 MAX_PRECISION
- significand_match( d
[i
][1], r
[i
][1] ) );
302 _mesa_printf(NULL
, "%f \t %f \t [ratio = %e - %i bit missed]\n",
303 d
[i
][2], r
[i
][2], r
[i
][2]/d
[i
][2],
304 MAX_PRECISION
- significand_match( d
[i
][2], r
[i
][2] ) );
308 if ( norm_normalize_types
[mtype
] != 0 ) {
309 if ( significand_match( d2
[i
][j
], r2
[i
][j
] ) < REQUIRED_PRECISION
) {
310 _mesa_printf(NULL
, "------------------- precalculated length case ------\n" );
311 _mesa_printf(NULL
, "(i = %i, j = %i)\n", i
, j
);
312 _mesa_printf(NULL
, "%f \t %f \t [ratio = %e - %i bit missed]\n",
313 d2
[i
][0], r2
[i
][0], r2
[i
][0]/d2
[i
][0],
314 MAX_PRECISION
- significand_match( d2
[i
][0], r2
[i
][0] ) );
315 _mesa_printf(NULL
, "%f \t %f \t [ratio = %e - %i bit missed]\n",
316 d2
[i
][1], r2
[i
][1], r2
[i
][1]/d2
[i
][1],
317 MAX_PRECISION
- significand_match( d2
[i
][1], r2
[i
][1] ) );
318 _mesa_printf(NULL
, "%f \t %f \t [ratio = %e - %i bit missed]\n",
319 d2
[i
][2], r2
[i
][2], r2
[i
][2]/d2
[i
][2],
320 MAX_PRECISION
- significand_match( d2
[i
][2], r2
[i
][2] ) );
327 ALIGN_FREE( mat
->m
);
331 void _math_test_all_normal_transform_functions( char *description
)
334 long benchmark_tab
[0xf];
335 static int first_time
= 1;
339 mesa_profile
= getenv( "MESA_PROFILE" );
342 #ifdef RUN_DEBUG_BENCHMARK
343 if ( mesa_profile
) {
344 if ( !counter_overhead
) {
346 _mesa_printf(NULL
, "counter overhead: %ld cycles\n\n", counter_overhead
);
348 _mesa_printf(NULL
, "normal transform results after hooking in %s functions:\n",
350 _mesa_printf(NULL
, "\n-------------------------------------------------------\n" );
354 for ( mtype
= 0 ; mtype
< 8 ; mtype
++ ) {
355 normal_func func
= _mesa_normal_tab
[norm_types
[mtype
]];
356 long *cycles
= &benchmark_tab
[mtype
];
358 if ( test_norm_function( func
, mtype
, cycles
) == 0 ) {
360 _mesa_sprintf(NULL
, buf
, "_mesa_normal_tab[0][%s] failed test (%s)",
361 norm_strings
[mtype
], description
);
362 _mesa_problem( NULL
, buf
);
365 #ifdef RUN_DEBUG_BENCHMARK
366 if ( mesa_profile
) {
367 _mesa_printf(NULL
, " %li\t", benchmark_tab
[mtype
] );
368 _mesa_printf(NULL
, " | [%s]\n", norm_strings
[mtype
] );
372 #ifdef RUN_DEBUG_BENCHMARK
373 if ( mesa_profile
) {
374 _mesa_printf(NULL
, "\n" );