9b7bafa7ca0f8213957aea45772c43441d3e022e
1 /* $Id: m_debug_norm.c,v 1.4 2001/03/08 15:23:46 brianp Exp $ */
4 * Mesa 3-D graphics library
7 * Copyright (C) 1999 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 GLvector3f
*in
,
123 const GLfloat
*lengths
,
124 const GLubyte mask
[],
128 const GLfloat
*s
= in
->start
;
129 const GLfloat
*m
= mat
->inv
;
130 GLfloat (*out
)[3] = (GLfloat (*)[3])dest
->start
;
135 for ( i
= 0 ; i
< in
->count
; i
++ ) {
138 TRANSFORM_NORMAL( t
, s
, m
);
139 SCALE_SCALAR_3V( out
[i
], scale
, t
);
141 s
= (GLfloat
*)((char *)s
+ in
->stride
);
145 static void ref_norm_transform_normalize( const GLmatrix
*mat
,
147 const GLvector3f
*in
,
148 const GLfloat
*lengths
,
149 const GLubyte mask
[],
153 const GLfloat
*s
= in
->start
;
154 const GLfloat
*m
= mat
->inv
;
155 GLfloat (*out
)[3] = (GLfloat (*)[3])dest
->start
;
159 for ( i
= 0 ; i
< in
->count
; i
++ ) {
162 TRANSFORM_NORMAL( t
, s
, m
);
165 GLfloat len
= LEN_SQUARED_3FV( t
);
167 /* Hmmm, don't know how we could test the precalculated
170 scale
= 1.0 / sqrt( len
);
171 SCALE_SCALAR_3V( out
[i
], scale
, t
);
173 out
[i
][0] = out
[i
][1] = out
[i
][2] = 0;
177 SCALE_SCALAR_3V( out
[i
], scale
, t
);
180 s
= (GLfloat
*)((char *)s
+ in
->stride
);
185 /* ================================================================
186 * Normal transformation tests
189 static int test_norm_function( normal_func func
, int mtype
,
190 int masked
, long *cycles
)
192 GLvector3f source
[1], dest
[1], dest2
[1], ref
[1], ref2
[1];
194 GLfloat s
[TEST_COUNT
][5], d
[TEST_COUNT
][3], r
[TEST_COUNT
][3];
195 GLfloat d2
[TEST_COUNT
][3], r2
[TEST_COUNT
][3], length
[TEST_COUNT
];
198 GLubyte mask
[TEST_COUNT
];
200 #ifdef RUN_DEBUG_BENCHMARK
201 int cycle_i
; /* the counter for the benchmarks we run */
206 mat
->m
= (GLfloat
*) ALIGN_MALLOC( 16 * sizeof(GLfloat
), 16 );
207 mat
->inv
= m
= mat
->m
;
211 scale
= 1.0F
+ rnd () * norm_scale_types
[mtype
];
213 for ( i
= 0 ; i
< 4 ; i
++ ) {
214 for ( j
= 0 ; j
< 4 ; j
++ ) {
215 switch ( norm_templates
[mtype
][i
* 4 + j
] ) {
233 for ( i
= 0 ; i
< TEST_COUNT
; i
++ ) {
234 mask
[i
] = i
% 2; /* mask every 2nd element */
235 ASSIGN_3V( d
[i
], 0.0, 0.0, 0.0 );
236 ASSIGN_3V( s
[i
], 0.0, 0.0, 0.0 );
237 ASSIGN_3V( d2
[i
], 0.0, 0.0, 0.0 );
238 for ( j
= 0 ; j
< 3 ; j
++ )
240 length
[i
] = 1 / sqrt( LEN_SQUARED_3FV( s
[i
] ) );
243 source
->data
= (GLfloat(*)[3])s
;
244 source
->start
= (GLfloat
*)s
;
245 source
->count
= TEST_COUNT
;
246 source
->stride
= sizeof(s
[0]);
249 dest
->data
= (GLfloat(*)[3])d
;
250 dest
->start
= (GLfloat
*)d
;
251 dest
->count
= TEST_COUNT
;
252 dest
->stride
= sizeof(float[3]);
255 dest2
->data
= (GLfloat(*)[3])d2
;
256 dest2
->start
= (GLfloat
*)d2
;
257 dest2
->count
= TEST_COUNT
;
258 dest2
->stride
= sizeof(float[3]);
261 ref
->data
= (GLfloat(*)[3])r
;
262 ref
->start
= (GLfloat
*)r
;
263 ref
->count
= TEST_COUNT
;
264 ref
->stride
= sizeof(float[3]);
267 ref2
->data
= (GLfloat(*)[3])r2
;
268 ref2
->start
= (GLfloat
*)r2
;
269 ref2
->count
= TEST_COUNT
;
270 ref2
->stride
= sizeof(float[3]);
273 if ( norm_normalize_types
[mtype
] == 0 ) {
274 ref_norm_transform_rescale( mat
, scale
, source
, NULL
, NULL
, ref
);
276 ref_norm_transform_normalize( mat
, scale
, source
, NULL
, NULL
, ref
);
277 ref_norm_transform_normalize( mat
, scale
, source
, length
, NULL
, ref2
);
280 if ( mesa_profile
) {
282 BEGIN_RACE( *cycles
);
283 func( mat
, scale
, source
, NULL
, mask
, dest
);
285 func( mat
, scale
, source
, length
, mask
, dest2
);
287 BEGIN_RACE( *cycles
);
288 func( mat
, scale
, source
, NULL
, NULL
, dest
);
290 func( mat
, scale
, source
, length
, NULL
, dest2
);
294 func( mat
, scale
, source
, NULL
, mask
, dest
);
295 func( mat
, scale
, source
, length
, mask
, dest2
);
297 func( mat
, scale
, source
, NULL
, NULL
, dest
);
298 func( mat
, scale
, source
, length
, NULL
, dest2
);
302 for ( i
= 0 ; i
< TEST_COUNT
; i
++ ) {
303 if ( masked
&& !(mask
[i
] & 1) )
306 for ( j
= 0 ; j
< 3 ; j
++ ) {
307 if ( significand_match( d
[i
][j
], r
[i
][j
] ) < REQUIRED_PRECISION
) {
308 printf( "-----------------------------\n" );
309 printf( "(i = %i, j = %i)\n", i
, j
);
310 printf( "%f \t %f \t [ratio = %e - %i bit missed]\n",
311 d
[i
][0], r
[i
][0], r
[i
][0]/d
[i
][0],
312 MAX_PRECISION
- significand_match( d
[i
][0], r
[i
][0] ) );
313 printf( "%f \t %f \t [ratio = %e - %i bit missed]\n",
314 d
[i
][1], r
[i
][1], r
[i
][1]/d
[i
][1],
315 MAX_PRECISION
- significand_match( d
[i
][1], r
[i
][1] ) );
316 printf( "%f \t %f \t [ratio = %e - %i bit missed]\n",
317 d
[i
][2], r
[i
][2], r
[i
][2]/d
[i
][2],
318 MAX_PRECISION
- significand_match( d
[i
][2], r
[i
][2] ) );
322 if ( norm_normalize_types
[mtype
] != 0 ) {
323 if ( significand_match( d2
[i
][j
], r2
[i
][j
] ) < REQUIRED_PRECISION
) {
324 printf( "------------------- precalculated length case ------\n" );
325 printf( "(i = %i, j = %i)\n", i
, j
);
326 printf( "%f \t %f \t [ratio = %e - %i bit missed]\n",
327 d2
[i
][0], r2
[i
][0], r2
[i
][0]/d2
[i
][0],
328 MAX_PRECISION
- significand_match( d2
[i
][0], r2
[i
][0] ) );
329 printf( "%f \t %f \t [ratio = %e - %i bit missed]\n",
330 d2
[i
][1], r2
[i
][1], r2
[i
][1]/d2
[i
][1],
331 MAX_PRECISION
- significand_match( d2
[i
][1], r2
[i
][1] ) );
332 printf( "%f \t %f \t [ratio = %e - %i bit missed]\n",
333 d2
[i
][2], r2
[i
][2], r2
[i
][2]/d2
[i
][2],
334 MAX_PRECISION
- significand_match( d2
[i
][2], r2
[i
][2] ) );
341 ALIGN_FREE( mat
->m
);
345 void _math_test_all_normal_transform_functions( char *description
)
349 long benchmark_tab
[0xf][0x4];
350 static int first_time
= 1;
354 mesa_profile
= getenv( "MESA_PROFILE" );
357 #ifdef RUN_DEBUG_BENCHMARK
358 if ( mesa_profile
) {
359 if ( !counter_overhead
) {
361 printf( "counter overhead: %ld cycles\n\n", counter_overhead
);
363 printf( "normal transform results after hooking in %s functions:\n",
368 for ( masked
= 0 ; masked
<= 1 ; masked
++ ) {
369 int cma
= masked
? 1 : 0;
370 char *cmastring
= masked
? "CULL_MASK_ACTIVE" : "0";
372 #ifdef RUN_DEBUG_BENCHMARK
373 if ( mesa_profile
) {
374 printf( "\n culling: %s \n", masked
? "CULL_MASK_ACTIVE" : "0" );
375 printf( "\n-------------------------------------------------------\n" );
379 for ( mtype
= 0 ; mtype
< 8 ; mtype
++ ) {
380 normal_func func
= _mesa_normal_tab
[norm_types
[mtype
]][cma
];
381 long *cycles
= &(benchmark_tab
[mtype
][cma
]);
383 if ( test_norm_function( func
, mtype
, masked
, cycles
) == 0 ) {
385 sprintf( buf
, "_mesa_normal_tab[%s][%s] failed test (%s)",
386 cmastring
, norm_strings
[mtype
], description
);
387 _mesa_problem( NULL
, buf
);
390 #ifdef RUN_DEBUG_BENCHMARK
391 if ( mesa_profile
) {
392 printf( " %li\t", benchmark_tab
[mtype
][cma
] );
393 printf( " | [%s]\n", norm_strings
[mtype
] );
402 #ifdef RUN_DEBUG_BENCHMARK