ref: e1075ceabb1c0740162e7f6173cf6600116223c4
dir: /demos/src/memtest.c/
/* memtest.c */
#include <freetype/freetype.h>
#include <freetype/ftmodule.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
FT_Error error;
FT_Library library;
FT_Face face;
unsigned int num_glyphs;
int ptsize;
int Fail;
int Num;
/****************************************************************************/
/****************************************************************************/
/****************************************************************************/
/****************************************************************************/
/* Our own memory allocator. To check that a single block isn't freed */
/* several time, we simply do not call "free".. */
#define MAX_RECORDED_BLOCKS 1638400
#define CHECK_DUPLICATES
typedef struct MyBlock
{
void* base;
long size;
} MyBlock;
static MyBlock my_blocks[ MAX_RECORDED_BLOCKS ];
static int num_my_blocks = 0;
/* record a new block in the table, check for duplicates too */
static
void record_my_block( void* base, long size )
{
if (size <= 0)
{
fprintf( stderr, "adding a block with non-positive length - should not happen \n" );
exit(1);
}
if ( num_my_blocks < MAX_RECORDED_BLOCKS )
{
MyBlock* block;
#ifdef CHECK_DUPLICATES
MyBlock* limit;
block = my_blocks;
limit = block + num_my_blocks;
for ( ; block < limit; block++ )
{
if ( block->base == base && block->size != 0 )
{
fprintf( stderr, "duplicate memory block at %08lx\n", (long)block->base );
exit(1);
}
}
#endif
block = my_blocks + num_my_blocks++;
block->base = base;
block->size = size;
}
else
{
fprintf( stderr, "Too many memory blocks -- test exited !!\n" );
exit(1);
}
}
/* forget a block, and check that it isn't part of our table already */
static
void forget_my_block( void* base )
{
MyBlock* block = my_blocks + num_my_blocks-1;
/* we scan in reverse, because transient blocks are always located */
/* at the end of the table.. (it supposedly faster then..) */
for ( ; block >= my_blocks; block-- )
{
if ( block->base == base )
{
if (block->size > 0)
{
block->size = 0;
return;
}
else
{
fprintf( stderr, "Block at %p released twice \n", base );
exit(1);
}
}
}
fprintf( stderr, "Trying to release an unallocated block at %p\n",
base );
exit(1);
}
static
void* my_alloc( FT_Memory memory,
long size )
{
void* p = malloc(size);
if (p)
record_my_block(p,size);
memory=memory;
return p;
}
static
void my_free( FT_Memory memory, void* block )
{
memory=memory;
forget_my_block(block);
/* free(block); WE DO NOT REALLY FREE THE BLOCK */
}
static
void* my_realloc( FT_Memory memory,
long cur_size,
long new_size,
void* block )
{
void* p;
p = my_alloc( memory, new_size );
if (p)
{
long size;
size = cur_size;
if (new_size < size)
size = new_size;
memcpy( p, block, size );
my_free( memory, block );
}
return p;
}
struct FT_MemoryRec_ my_memory =
{
0,
my_alloc,
my_free,
my_realloc
};
static void dump_mem( void )
{
MyBlock* block = my_blocks + num_my_blocks-1;
int bad = 0;
printf( "total allocated blocks = %d\n", num_my_blocks );
/* we scan in reverse, because transient blocks are always located */
/* at the end of the table.. (it supposedly faster then..) */
for ( ; block >= my_blocks; block-- )
{
if (block->size > 0)
{
fprintf( stderr, "%p (%6ld bytes) leaked !!\n", block->base, (long)block->size );
bad = 1;
}
}
if (!bad)
fprintf( stderr, "no leaked memory block\n\n" );
}
/****************************************************************************/
/****************************************************************************/
/****************************************************************************/
/****************************************************************************/
static void Usage( char* name )
{
printf( "memtest: simple memory tester -- part of the FreeType project\n" );
printf( "-------------------------------------------------------------\n" );
printf( "\n" );
printf( "Usage: %s ppem fontname[.ttf|.ttc] [fontname2..]\n", name );
printf( "\n" );
exit( 1 );
}
static void Panic( const char* message )
{
fprintf( stderr, "%s\n error code = 0x%04x\n", message, error );
exit(1);
}
int main( int argc, char** argv )
{
int i, file_index;
unsigned int id;
char filename[128 + 4];
char alt_filename[128 + 4];
char* execname;
char* fname;
execname = argv[0];
if ( argc < 3 )
Usage( execname );
if ( sscanf( argv[1], "%d", &ptsize ) != 1 )
Usage( execname );
/* Create a new library with our own memory manager */
error = FT_New_Library( &my_memory, &library );
if (error) Panic( "Could not create library object" );
/* the new library has no drivers in it, add the default ones */
/* (implemented in ftinit.c).. */
FT_Add_Default_Modules(library);
/* Now check all files */
for ( file_index = 2; file_index < argc; file_index++ )
{
fname = argv[file_index];
i = strlen( fname );
while ( i > 0 && fname[i] != '\\' && fname[i] != '/' )
{
if ( fname[i] == '.' )
i = 0;
i--;
}
filename[128] = '\0';
alt_filename[128] = '\0';
strncpy( filename, fname, 128 );
strncpy( alt_filename, fname, 128 );
#ifndef macintosh
if ( i >= 0 )
{
strncpy( filename + strlen( filename ), ".ttf", 4 );
strncpy( alt_filename + strlen( alt_filename ), ".ttc", 4 );
}
#endif
i = strlen( filename );
fname = filename;
while ( i >= 0 )
#ifndef macintosh
if ( filename[i] == '/' || filename[i] == '\\' )
#else
if ( filename[i] == ':' )
#endif
{
fname = filename + i + 1;
i = -1;
}
else
i--;
printf( "%s: ", fname );
/* Load face */
error = FT_New_Face( library, filename, 0, &face );
if (error)
{
if (error == FT_Err_Invalid_File_Format)
printf( "unknown format\n" );
else
printf( "could not find/open file (error: %d)\n", error );
continue;
}
if (error) Panic( "Could not open file" );
num_glyphs = face->num_glyphs;
error = FT_Set_Char_Size( face, ptsize << 6, ptsize << 6, 72, 72 );
if (error) Panic( "Could not set character size" );
Fail = 0;
{
for ( id = 0; id < num_glyphs; id++ )
{
error = FT_Load_Glyph( face, id, FT_LOAD_RENDER | FT_LOAD_ANTI_ALIAS );
if (error)
{
if ( Fail < 10 )
printf( "glyph %4u: 0x%04x\n" , id, error );
Fail++;
}
}
}
if ( Fail == 0 )
printf( "OK.\n" );
else
if ( Fail == 1 )
printf( "1 fail.\n" );
else
printf( "%d fails.\n", Fail );
FT_Done_Face( face );
}
FT_Done_FreeType(library);
dump_mem();
exit( 0 ); /* for safety reasons */
return 0; /* never reached */
}