0,0 → 1,339 |
/* |
* Mesa 3-D graphics library |
* Version: 6.1 |
* |
* Copyright (C) 1999-2004 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. |
*/ |
|
/* |
* Updated for P6 architecture by Gareth Hughes. |
*/ |
|
#include "main/glheader.h" |
#include "main/context.h" |
#include "main/macros.h" |
#include "main/imports.h" |
|
#include "m_matrix.h" |
#include "m_xform.h" |
|
#include "m_debug.h" |
#include "m_debug_util.h" |
|
#ifdef __UNIXOS2__ |
/* The linker doesn't like empty files */ |
static char dummy; |
#endif |
|
#ifdef DEBUG_MATH /* This code only used for debugging */ |
|
|
/* Overhead of profiling counter in cycles. Automatically adjusted to |
* your machine at run time - counter initialization should give very |
* consistent results. |
*/ |
long counter_overhead = 0; |
|
/* This is the value of the environment variable MESA_PROFILE, and is |
* used to determine if we should benchmark the functions as well as |
* verify their correctness. |
*/ |
char *mesa_profile = NULL; |
|
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static int m_general[16] = { |
VAR, VAR, VAR, VAR, |
VAR, VAR, VAR, VAR, |
VAR, VAR, VAR, VAR, |
VAR, VAR, VAR, VAR |
}; |
static int m_identity[16] = { |
ONE, NIL, NIL, NIL, |
NIL, ONE, NIL, NIL, |
NIL, NIL, ONE, NIL, |
NIL, NIL, NIL, ONE |
}; |
static int m_2d[16] = { |
VAR, VAR, NIL, VAR, |
VAR, VAR, NIL, VAR, |
NIL, NIL, ONE, NIL, |
NIL, NIL, NIL, ONE |
}; |
static int m_2d_no_rot[16] = { |
VAR, NIL, NIL, VAR, |
NIL, VAR, NIL, VAR, |
NIL, NIL, ONE, NIL, |
NIL, NIL, NIL, ONE |
}; |
static int m_3d[16] = { |
VAR, VAR, VAR, VAR, |
VAR, VAR, VAR, VAR, |
VAR, VAR, VAR, VAR, |
NIL, NIL, NIL, ONE |
}; |
static int m_3d_no_rot[16] = { |
VAR, NIL, NIL, VAR, |
NIL, VAR, NIL, VAR, |
NIL, NIL, VAR, VAR, |
NIL, NIL, NIL, ONE |
}; |
static int m_perspective[16] = { |
VAR, NIL, VAR, NIL, |
NIL, VAR, VAR, NIL, |
NIL, NIL, VAR, VAR, |
NIL, NIL, NEG, NIL |
}; |
static int *templates[7] = { |
m_general, |
m_identity, |
m_3d_no_rot, |
m_perspective, |
m_2d, |
m_2d_no_rot, |
m_3d |
}; |
static enum GLmatrixtype mtypes[7] = { |
MATRIX_GENERAL, |
MATRIX_IDENTITY, |
MATRIX_3D_NO_ROT, |
MATRIX_PERSPECTIVE, |
MATRIX_2D, |
MATRIX_2D_NO_ROT, |
MATRIX_3D |
}; |
static char *mstrings[7] = { |
"MATRIX_GENERAL", |
"MATRIX_IDENTITY", |
"MATRIX_3D_NO_ROT", |
"MATRIX_PERSPECTIVE", |
"MATRIX_2D", |
"MATRIX_2D_NO_ROT", |
"MATRIX_3D" |
}; |
|
|
/* ============================================================= |
* Reference transformations |
*/ |
|
static void ref_transform( GLvector4f *dst, |
const GLmatrix *mat, |
const GLvector4f *src ) |
{ |
GLuint i; |
GLfloat *s = (GLfloat *)src->start; |
GLfloat (*d)[4] = (GLfloat (*)[4])dst->start; |
const GLfloat *m = mat->m; |
|
for ( i = 0 ; i < src->count ; i++ ) { |
TRANSFORM_POINT( d[i], m, s ); |
s = (GLfloat *)((char *)s + src->stride); |
} |
} |
|
|
/* ============================================================= |
* Vertex transformation tests |
*/ |
|
static void init_matrix( GLfloat *m ) |
{ |
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; |
} |
|
ALIGN16(static GLfloat, s[TEST_COUNT][4]); |
ALIGN16(static GLfloat, d[TEST_COUNT][4]); |
ALIGN16(static GLfloat, r[TEST_COUNT][4]); |
|
static int test_transform_function( transform_func func, int psize, |
int mtype, unsigned long *cycles ) |
{ |
GLvector4f source[1], dest[1], ref[1]; |
GLmatrix mat[1]; |
GLfloat *m; |
int i, j; |
#ifdef RUN_DEBUG_BENCHMARK |
int cycle_i; /* the counter for the benchmarks we run */ |
#endif |
|
(void) cycles; |
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if ( psize > 4 ) { |
_mesa_problem( NULL, "test_transform_function called with psize > 4\n" ); |
return 0; |
} |
|
mat->m = (GLfloat *) _mesa_align_malloc( 16 * sizeof(GLfloat), 16 ); |
mat->type = mtypes[mtype]; |
|
m = mat->m; |
ASSERT( ((long)m & 15) == 0 ); |
|
init_matrix( m ); |
|
for ( i = 0 ; i < 4 ; i++ ) { |
for ( j = 0 ; j < 4 ; j++ ) { |
switch ( templates[mtype][i * 4 + j] ) { |
case NIL: |
m[j * 4 + i] = 0.0; |
break; |
case ONE: |
m[j * 4 + i] = 1.0; |
break; |
case NEG: |
m[j * 4 + i] = -1.0; |
break; |
case VAR: |
break; |
default: |
ASSERT(0); |
return 0; |
} |
} |
} |
|
for ( i = 0 ; i < TEST_COUNT ; i++) { |
ASSIGN_4V( d[i], 0.0, 0.0, 0.0, 1.0 ); |
ASSIGN_4V( s[i], 0.0, 0.0, 0.0, 1.0 ); |
for ( j = 0 ; j < psize ; 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; |
|
dest->data = (GLfloat(*)[4])d; |
dest->start = (GLfloat *)d; |
dest->count = TEST_COUNT; |
dest->stride = sizeof(float[4]); |
dest->size = 0; |
dest->flags = 0; |
|
ref->data = (GLfloat(*)[4])r; |
ref->start = (GLfloat *)r; |
ref->count = TEST_COUNT; |
ref->stride = sizeof(float[4]); |
ref->size = 0; |
ref->flags = 0; |
|
ref_transform( ref, mat, source ); |
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if ( mesa_profile ) { |
BEGIN_RACE( *cycles ); |
func( dest, mat->m, source ); |
END_RACE( *cycles ); |
} |
else { |
func( dest, mat->m, source ); |
} |
|
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; |
} |
} |
} |
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_mesa_align_free( mat->m ); |
return 1; |
} |
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void _math_test_all_transform_functions( char *description ) |
{ |
int psize, mtype; |
unsigned long benchmark_tab[4][7]; |
static int first_time = 1; |
|
if ( first_time ) { |
first_time = 0; |
mesa_profile = _mesa_getenv( "MESA_PROFILE" ); |
} |
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#ifdef RUN_DEBUG_BENCHMARK |
if ( mesa_profile ) { |
if ( !counter_overhead ) { |
INIT_COUNTER(); |
printf("counter overhead: %lu cycles\n\n", counter_overhead ); |
} |
printf("transform results after hooking in %s functions:\n", description ); |
} |
#endif |
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#ifdef RUN_DEBUG_BENCHMARK |
if ( mesa_profile ) { |
printf("\n" ); |
for ( psize = 1 ; psize <= 4 ; psize++ ) { |
printf(" p%d\t", psize ); |
} |
printf("\n--------------------------------------------------------\n" ); |
} |
#endif |
|
for ( mtype = 0 ; mtype < 7 ; mtype++ ) { |
for ( psize = 1 ; psize <= 4 ; psize++ ) { |
transform_func func = _mesa_transform_tab[psize][mtypes[mtype]]; |
unsigned long *cycles = &(benchmark_tab[psize-1][mtype]); |
|
if ( test_transform_function( func, psize, mtype, cycles ) == 0 ) { |
char buf[100]; |
sprintf(buf, "_mesa_transform_tab[0][%d][%s] failed test (%s)", |
psize, mstrings[mtype], description ); |
_mesa_problem( NULL, "%s", buf ); |
} |
#ifdef RUN_DEBUG_BENCHMARK |
if ( mesa_profile ) |
printf(" %li\t", benchmark_tab[psize-1][mtype] ); |
#endif |
} |
#ifdef RUN_DEBUG_BENCHMARK |
if ( mesa_profile ) |
printf(" | [%s]\n", mstrings[mtype] ); |
#endif |
} |
#ifdef RUN_DEBUG_BENCHMARK |
if ( mesa_profile ) |
printf( "\n" ); |
#endif |
} |
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#endif /* DEBUG_MATH */ |