1feb3cffe1396c7707040f27e58e2255cd17105c
1 /* $Id: m_debug_xform.c,v 1.11 2002/12/04 14:24:44 brianp Exp $ */
4 * Mesa 3-D graphics library
7 * Copyright (C) 1999-2001 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.
28 * Updated for P6 architecture by Gareth Hughes.
40 #include "m_debug_util.h"
42 #ifdef DEBUG /* This code only used for debugging */
45 /* Overhead of profiling counter in cycles. Automatically adjusted to
46 * your machine at run time - counter initialization should give very
49 long counter_overhead
= 0;
51 /* This is the value of the environment variable MESA_PROFILE, and is
52 * used to determine if we should benchmark the functions as well as
53 * verify their correctness.
55 char *mesa_profile
= NULL
;
58 static int m_general
[16] = {
64 static int m_identity
[16] = {
70 static int m_2d
[16] = {
76 static int m_2d_no_rot
[16] = {
82 static int m_3d
[16] = {
88 static int m_3d_no_rot
[16] = {
94 static int m_perspective
[16] = {
100 static int *templates
[7] = {
109 static int mtypes
[7] = {
118 static char *mstrings
[7] = {
122 "MATRIX_PERSPECTIVE",
129 /* =============================================================
130 * Reference transformations
133 static void ref_transform( GLvector4f
*dst
,
135 const GLvector4f
*src
)
138 GLfloat
*s
= (GLfloat
*)src
->start
;
139 GLfloat (*d
)[4] = (GLfloat (*)[4])dst
->start
;
140 const GLfloat
*m
= mat
->m
;
142 for ( i
= 0 ; i
< src
->count
; i
++ ) {
143 TRANSFORM_POINT( d
[i
], m
, s
);
144 s
= (GLfloat
*)((char *)s
+ src
->stride
);
149 /* =============================================================
150 * Vertex transformation tests
153 static void init_matrix( GLfloat
*m
)
155 m
[0] = 63.0; m
[4] = 43.0; m
[ 8] = 29.0; m
[12] = 43.0;
156 m
[1] = 55.0; m
[5] = 17.0; m
[ 9] = 31.0; m
[13] = 7.0;
157 m
[2] = 44.0; m
[6] = 9.0; m
[10] = 7.0; m
[14] = 3.0;
158 m
[3] = 11.0; m
[7] = 23.0; m
[11] = 91.0; m
[15] = 9.0;
161 static GLfloat s
[TEST_COUNT
][4] ALIGN16
;
162 static GLfloat d
[TEST_COUNT
][4] ALIGN16
;
163 static GLfloat r
[TEST_COUNT
][4] ALIGN16
;
165 static int test_transform_function( transform_func func
, int psize
,
166 int mtype
, long *cycles
)
168 GLvector4f source
[1], dest
[1], ref
[1];
172 #ifdef RUN_DEBUG_BENCHMARK
173 int cycle_i
; /* the counter for the benchmarks we run */
179 _mesa_problem( NULL
, "test_transform_function called with psize > 4\n" );
183 mat
->m
= (GLfloat
*) ALIGN_MALLOC( 16 * sizeof(GLfloat
), 16 );
184 mat
->type
= mtypes
[mtype
];
187 ASSERT( ((GLuint
)m
& 15) == 0 );
191 for ( i
= 0 ; i
< 4 ; i
++ ) {
192 for ( j
= 0 ; j
< 4 ; j
++ ) {
193 switch ( templates
[mtype
][i
* 4 + j
] ) {
211 for ( i
= 0 ; i
< TEST_COUNT
; i
++) {
212 ASSIGN_4V( d
[i
], 0.0, 0.0, 0.0, 1.0 );
213 ASSIGN_4V( s
[i
], 0.0, 0.0, 0.0, 1.0 );
214 for ( j
= 0 ; j
< psize
; j
++ )
218 source
->data
= (GLfloat(*)[4])s
;
219 source
->start
= (GLfloat
*)s
;
220 source
->count
= TEST_COUNT
;
221 source
->stride
= sizeof(s
[0]);
225 dest
->data
= (GLfloat(*)[4])d
;
226 dest
->start
= (GLfloat
*)d
;
227 dest
->count
= TEST_COUNT
;
228 dest
->stride
= sizeof(float[4]);
232 ref
->data
= (GLfloat(*)[4])r
;
233 ref
->start
= (GLfloat
*)r
;
234 ref
->count
= TEST_COUNT
;
235 ref
->stride
= sizeof(float[4]);
239 ref_transform( ref
, mat
, source
);
241 if ( mesa_profile
) {
242 BEGIN_RACE( *cycles
);
243 func( dest
, mat
->m
, source
);
247 func( dest
, mat
->m
, source
);
250 for ( i
= 0 ; i
< TEST_COUNT
; i
++ ) {
251 for ( j
= 0 ; j
< 4 ; j
++ ) {
252 if ( significand_match( d
[i
][j
], r
[i
][j
] ) < REQUIRED_PRECISION
) {
253 _mesa_printf("-----------------------------\n" );
254 _mesa_printf("(i = %i, j = %i)\n", i
, j
);
255 _mesa_printf("%f \t %f \t [diff = %e - %i bit missed]\n",
256 d
[i
][0], r
[i
][0], r
[i
][0]-d
[i
][0],
257 MAX_PRECISION
- significand_match( d
[i
][0], r
[i
][0] ) );
258 _mesa_printf("%f \t %f \t [diff = %e - %i bit missed]\n",
259 d
[i
][1], r
[i
][1], r
[i
][1]-d
[i
][1],
260 MAX_PRECISION
- significand_match( d
[i
][1], r
[i
][1] ) );
261 _mesa_printf("%f \t %f \t [diff = %e - %i bit missed]\n",
262 d
[i
][2], r
[i
][2], r
[i
][2]-d
[i
][2],
263 MAX_PRECISION
- significand_match( d
[i
][2], r
[i
][2] ) );
264 _mesa_printf("%f \t %f \t [diff = %e - %i bit missed]\n",
265 d
[i
][3], r
[i
][3], r
[i
][3]-d
[i
][3],
266 MAX_PRECISION
- significand_match( d
[i
][3], r
[i
][3] ) );
272 ALIGN_FREE( mat
->m
);
276 void _math_test_all_transform_functions( char *description
)
279 long benchmark_tab
[4][7];
280 static int first_time
= 1;
284 mesa_profile
= getenv( "MESA_PROFILE" );
287 #ifdef RUN_DEBUG_BENCHMARK
288 if ( mesa_profile
) {
289 if ( !counter_overhead
) {
291 _mesa_printf("counter overhead: %ld cycles\n\n", counter_overhead
);
293 _mesa_printf("transform results after hooking in %s functions:\n", description
);
297 #ifdef RUN_DEBUG_BENCHMARK
298 if ( mesa_profile
) {
300 for ( psize
= 1 ; psize
<= 4 ; psize
++ ) {
301 _mesa_printf(" p%d\t", psize
);
303 _mesa_printf("\n--------------------------------------------------------\n" );
307 for ( mtype
= 0 ; mtype
< 7 ; mtype
++ ) {
308 for ( psize
= 1 ; psize
<= 4 ; psize
++ ) {
309 transform_func func
= _mesa_transform_tab
[psize
][mtypes
[mtype
]];
310 long *cycles
= &(benchmark_tab
[psize
-1][mtype
]);
312 if ( test_transform_function( func
, psize
, mtype
, cycles
) == 0 ) {
314 _mesa_sprintf(buf
, "_mesa_transform_tab[0][%d][%s] failed test (%s)",
315 psize
, mstrings
[mtype
], description
);
316 _mesa_problem( NULL
, buf
);
318 #ifdef RUN_DEBUG_BENCHMARK
320 _mesa_printf(" %li\t", benchmark_tab
[psize
-1][mtype
] );
323 #ifdef RUN_DEBUG_BENCHMARK
325 _mesa_printf(" | [%s]\n", mstrings
[mtype
] );
328 #ifdef RUN_DEBUG_BENCHMARK
330 _mesa_printf( "\n" );