6e19adea38409a17b03bd185072661b2ba197455
1 /* $Id: m_debug_xform.c,v 1.7 2001/03/29 06:46:27 gareth 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
,
136 const GLubyte
*clipmask
,
140 GLfloat
*s
= (GLfloat
*)src
->start
;
141 GLfloat (*d
)[4] = (GLfloat (*)[4])dst
->start
;
142 const GLfloat
*m
= mat
->m
;
147 for ( i
= 0 ; i
< src
->count
; i
++ ) {
148 TRANSFORM_POINT( d
[i
], m
, s
);
149 s
= (GLfloat
*)((char *)s
+ src
->stride
);
154 /* ================================================================
155 * Vertex transformation tests
158 static GLfloat s
[TEST_COUNT
][4] ALIGN16
;
159 static GLfloat d
[TEST_COUNT
][4] ALIGN16
;
160 static GLfloat r
[TEST_COUNT
][4] ALIGN16
;
162 static int test_transform_function( transform_func func
, int psize
,
163 int mtype
, long *cycles
)
165 GLvector4f source
[1], dest
[1], ref
[1];
168 GLubyte mask
[TEST_COUNT
];
170 #ifdef RUN_DEBUG_BENCHMARK
171 int cycle_i
; /* the counter for the benchmarks we run */
177 _mesa_problem( NULL
, "test_transform_function called with psize > 4\n" );
181 mat
->m
= (GLfloat
*) ALIGN_MALLOC( 16 * sizeof(GLfloat
), 16 );
182 mat
->type
= mtypes
[mtype
];
185 ASSERT( ((GLuint
)m
& 15) == 0 );
189 for ( i
= 0 ; i
< 4 ; i
++ ) {
190 for ( j
= 0 ; j
< 4 ; j
++ ) {
191 switch ( templates
[mtype
][i
* 4 + j
] ) {
209 for ( i
= 0 ; i
< TEST_COUNT
; i
++) {
210 mask
[i
] = i
% 2; /* mask every 2nd element */
211 ASSIGN_4V( d
[i
], 0.0, 0.0, 0.0, 1.0 );
212 ASSIGN_4V( s
[i
], 0.0, 0.0, 0.0, 1.0 );
213 for ( j
= 0 ; j
< psize
; j
++ )
217 source
->data
= (GLfloat(*)[4])s
;
218 source
->start
= (GLfloat
*)s
;
219 source
->count
= TEST_COUNT
;
220 source
->stride
= sizeof(s
[0]);
224 dest
->data
= (GLfloat(*)[4])d
;
225 dest
->start
= (GLfloat
*)d
;
226 dest
->count
= TEST_COUNT
;
227 dest
->stride
= sizeof(float[4]);
231 ref
->data
= (GLfloat(*)[4])r
;
232 ref
->start
= (GLfloat
*)r
;
233 ref
->count
= TEST_COUNT
;
234 ref
->stride
= sizeof(float[4]);
238 ref_transform( ref
, mat
, source
, NULL
, 0 );
240 if ( mesa_profile
) {
241 BEGIN_RACE( *cycles
);
242 func( dest
, mat
->m
, source
, NULL
, 0 );
246 func( dest
, mat
->m
, source
, NULL
, 0 );
249 for ( i
= 0 ; i
< TEST_COUNT
; i
++ ) {
250 for ( j
= 0 ; j
< 4 ; j
++ ) {
251 if ( significand_match( d
[i
][j
], r
[i
][j
] ) < REQUIRED_PRECISION
) {
252 printf( "-----------------------------\n" );
253 printf( "(i = %i, j = %i)\n", i
, j
);
254 printf( "%f \t %f \t [diff = %e - %i bit missed]\n",
255 d
[i
][0], r
[i
][0], r
[i
][0]-d
[i
][0],
256 MAX_PRECISION
- significand_match( d
[i
][0], r
[i
][0] ) );
257 printf( "%f \t %f \t [diff = %e - %i bit missed]\n",
258 d
[i
][1], r
[i
][1], r
[i
][1]-d
[i
][1],
259 MAX_PRECISION
- significand_match( d
[i
][1], r
[i
][1] ) );
260 printf( "%f \t %f \t [diff = %e - %i bit missed]\n",
261 d
[i
][2], r
[i
][2], r
[i
][2]-d
[i
][2],
262 MAX_PRECISION
- significand_match( d
[i
][2], r
[i
][2] ) );
263 printf( "%f \t %f \t [diff = %e - %i bit missed]\n",
264 d
[i
][3], r
[i
][3], r
[i
][3]-d
[i
][3],
265 MAX_PRECISION
- significand_match( d
[i
][3], r
[i
][3] ) );
271 ALIGN_FREE( mat
->m
);
275 void _math_test_all_transform_functions( char *description
)
278 long benchmark_tab
[2][4][7];
279 static int first_time
= 1;
283 mesa_profile
= getenv( "MESA_PROFILE" );
286 #ifdef RUN_DEBUG_BENCHMARK
287 if ( mesa_profile
) {
288 if ( !counter_overhead
) {
290 printf( "counter overhead: %ld cycles\n\n", counter_overhead
);
292 printf( "transform results after hooking in %s functions:\n", description
);
296 #ifdef RUN_DEBUG_BENCHMARK
297 if ( mesa_profile
) {
299 for ( psize
= 1 ; psize
<= 4 ; psize
++ ) {
300 printf( " p%d\t", psize
);
302 printf( "\n--------------------------------------------------------\n" );
306 for ( mtype
= 0 ; mtype
< 7 ; mtype
++ ) {
307 for ( psize
= 1 ; psize
<= 4 ; psize
++ ) {
308 transform_func func
= _mesa_transform_tab
[0][psize
][mtypes
[mtype
]];
309 long *cycles
= &(benchmark_tab
[0][psize
-1][mtype
]);
311 if ( test_transform_function( func
, psize
, mtype
, cycles
) == 0 ) {
313 sprintf( buf
, "_mesa_transform_tab[0][%d][%s] failed test (%s)",
314 psize
, mstrings
[mtype
], description
);
315 _mesa_problem( NULL
, buf
);
317 #ifdef RUN_DEBUG_BENCHMARK
319 printf( " %li\t", benchmark_tab
[0][psize
-1][mtype
] );
322 #ifdef RUN_DEBUG_BENCHMARK
324 printf( " | [%s]\n", mstrings
[mtype
] );
327 #ifdef RUN_DEBUG_BENCHMARK