ref: 52b430abeaf6b9768c20320bcd026e29d653030d
dir: /demos/src/fttimer.c/
/****************************************************************************/
/* */
/* The FreeType project - a Free and Portable Quality TrueType Renderer. */
/* */
/* Copyright 1996-1998 by */
/* D. Turner, R.Wilhelm, and W. Lemberg */
/* */
/* fttimer: A simple performance benchmark. Now with graylevel rendering */
/* with the '-g' option. */
/* */
/* Be aware that the timer program benchmarks different things */
/* in each release of the FreeType library. Thus, performance */
/* should only be compared between similar release numbers. */
/* */
/* */
/* NOTE: This is just a test program that is used to show off and */
/* debug the current engine. In no way does it shows the final */
/* high-level interface that client applications will use. */
/* */
/****************************************************************************/
#include <freetype/freetype.h>
#include <freetype/ftglyph.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h> /* for clock() */
/* SunOS 4.1.* does not define CLOCKS_PER_SEC, so include <sys/param.h> */
/* to get the HZ macro which is the equivalent. */
#if defined(__sun__) && !defined(SVR4) && !defined(__SVR4)
#include <sys/param.h>
#define CLOCKS_PER_SEC HZ
#endif
#define CHARSIZE 400 /* character point size */
#define MAX_GLYPHS 512 /* Maximum number of glyphs rendered at one time */
char Header[128];
FT_Error error;
FT_Library library;
FT_Face face;
int num_glyphs;
FT_Glyph glyphs[MAX_GLYPHS];
int tab_glyphs;
int cur_glyph;
int pixel_size = CHARSIZE;
int repeat_count = 1;
int Fail;
int Num;
short antialias = 1; /* smooth fonts with gray levels */
short force_low;
static
void Panic( const char* message )
{
fprintf( stderr, "%s\n", message );
exit(1);
}
/*******************************************************************/
/* */
/* Get_Time: */
/* */
/* Returns the current time in milliseconds. */
/* */
/*******************************************************************/
long Get_Time( void )
{
return clock() * 10000 / CLOCKS_PER_SEC;
}
/*******************************************************************/
/* */
/* LoadChar: */
/* */
/* Loads a glyph into memory. */
/* */
/*******************************************************************/
FT_Error LoadChar( int idx )
{
FT_Glyph glyph;
/* loads the glyph in the glyph slot */
error = FT_Load_Glyph( face, idx, FT_LOAD_DEFAULT ) ||
FT_Get_Glyph ( face->glyph, &glyph );
if ( !error )
{
glyphs[cur_glyph++] = glyph;
}
return error;
}
/*******************************************************************/
/* */
/* ConvertRaster: */
/* */
/* Performs scan conversion. */
/* */
/*******************************************************************/
FT_Error ConvertRaster( int index )
{
FT_Glyph bitmap;
FT_Error error;
bitmap = glyphs[index];
error = FT_Glyph_To_Bitmap( &bitmap,
antialias ? ft_render_mode_normal
: ft_render_mode_mono,
0,
0 );
if (!error)
FT_Done_Glyph( bitmap );
return error;
}
static void Usage()
{
fprintf( stderr, "fttimer: simple performance timer -- part of the FreeType project\n" );
fprintf( stderr, "-----------------------------------------------------------------\n\n" );
fprintf( stderr, "Usage: fttimer [options] fontname[.ttf|.ttc]\n\n" );
fprintf( stderr, "options:\n");
fprintf( stderr, " -r : repeat count to be used (default is 1)\n" );
fprintf( stderr, " -s : character pixel size (default is 600)\n" );
fprintf( stderr, " -m : render monochrome glyphs (default is anti-aliased)\n" );
fprintf( stderr, " -a : use smooth anti-aliaser\n" );
fprintf( stderr, " -l : force low quality even at small sizes\n" );
exit(1);
}
int main( int argc, char** argv )
{
int i, total, base, rendered_glyphs;
char filename[128 + 4];
char alt_filename[128 + 4];
char* execname;
long t, t0, tz0;
execname = argv[0];
antialias = 1;
force_low = 0;
while ( argc > 1 && argv[1][0] == '-' )
{
switch ( argv[1][1] )
{
case 'm':
antialias = 0;
break;
case 'l':
force_low = 1;
break;
case 's':
argc--;
argv++;
if ( argc < 2 ||
sscanf( argv[1], "%d", &pixel_size ) != 1 )
Usage();
break;
case 'r':
argc--;
argv++;
if ( argc < 2 ||
sscanf( argv[1], "%d", &repeat_count ) != 1 )
Usage();
if (repeat_count < 1)
repeat_count = 1;
break;
default:
fprintf( stderr, "Unknown argument '%s'!\n", argv[1] );
Usage();
}
argc--;
argv++;
}
if ( argc != 2 )
Usage();
i = strlen( argv[1] );
while ( i > 0 && argv[1][i] != '\\' )
{
if ( argv[1][i] == '.' )
i = 0;
i--;
}
filename[128] = '\0';
alt_filename[128] = '\0';
strncpy( filename, argv[1], 128 );
strncpy( alt_filename, argv[1], 128 );
if ( i >= 0 )
{
strncpy( filename + strlen( filename ), ".ttf", 4 );
strncpy( alt_filename + strlen( alt_filename ), ".ttc", 4 );
}
/* Initialize engine */
if ( (error = FT_Init_FreeType( &library )) )
Panic( "Error while initializing engine" );
/* Load face */
error = FT_New_Face( library, filename, 0, &face );
if ( error == FT_Err_Cannot_Open_Stream )
Panic( "Could not find/open font resource" );
else if ( error )
Panic( "Error while opening font resource" );
/* get face properties and allocate preload arrays */
num_glyphs = face->num_glyphs;
tab_glyphs = MAX_GLYPHS;
if ( tab_glyphs > num_glyphs )
tab_glyphs = num_glyphs;
/* create size */
error = FT_Set_Pixel_Sizes( face, pixel_size, pixel_size );
if ( error ) Panic( "Could not reset instance" );
Num = 0;
Fail = 0;
total = num_glyphs;
base = 0;
rendered_glyphs = 0;
t0 = 0; /* Initial time */
tz0 = Get_Time();
while ( total > 0 )
{
int repeat;
/* First, preload 'tab_glyphs' in memory */
cur_glyph = 0;
printf( "loading %d glyphs", tab_glyphs );
for ( Num = 0; Num < tab_glyphs; Num++ )
{
error = LoadChar( base + Num );
if ( error )
Fail++;
total--;
}
base += tab_glyphs;
if ( tab_glyphs > total )
tab_glyphs = total;
printf( ", rendering... " );
/* Now, render the loaded glyphs */
t = Get_Time();
for ( repeat = 0; repeat < repeat_count; repeat++ )
{
for ( Num = 0; Num < cur_glyph; Num++ )
{
if ( (error = ConvertRaster( Num )) )
Fail++;
else
{
rendered_glyphs ++;
}
}
}
t = Get_Time() - t;
if ( t < 0 )
t += 1000 * 60 * 60;
printf( " = %f s\n", (double)t / 10000 );
t0 += t;
/* Now free all loaded outlines */
for ( Num = 0; Num < cur_glyph; Num++ )
FT_Done_Glyph( glyphs[Num] );
}
tz0 = Get_Time() - tz0;
FT_Done_Face( face );
printf( "\n" );
printf( "rendered glyphs = %d\n", rendered_glyphs );
printf( "render time = %f s\n", (double)t0 / 10000 );
printf( "fails = %d\n", Fail );
printf( "average glyphs/s = %f\n",
(double)rendered_glyphs / t0 * 10000 );
printf( "total timing = %f s\n", (double)tz0 / 10000 );
printf( "Fails = %d\n", Fail );
FT_Done_FreeType( library );
exit( 0 ); /* for safety reasons */
return 0; /* never reached */
}
/* End */