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/* example1.c */
/* */
/* This small program shows how to print a rotated string with the */
/* FreeType 2 library. */
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>
#include <ft2build.h>
#include FT_FREETYPE_H
int WIDTH = 0;
int HEIGHT = 0;
/* origin is the upper left corner */
unsigned char *image;
/* Replace this function with something useful. */
void
draw_bitmap( FT_Bitmap* bitmap,
FT_Int x,
FT_Int y)
{
FT_Int i, j, p, q;
FT_Int x_max = x + bitmap->width;
FT_Int y_max = y + bitmap->rows;
for ( i = x, p = 0; i < x_max; i++, p++ )
{
for ( j = y, q = 0; j < y_max; j++, q++ )
{
if ( i < 0 || j < 0 ||
i >= WIDTH || j >= HEIGHT )
continue;
image[j*WIDTH + i] |= bitmap->buffer[q * bitmap->width + p];
}
}
}
void
show_image( void )
{
int i, j;
int count = 0;
for ( i = 0; i < HEIGHT; i++ )
{
for ( j = 0; j < WIDTH; j++ )
{
if (image[i*WIDTH + j]) count++;
putchar(image[i*WIDTH + j] == 0? ' '
: image[i*WIDTH + j] < 128 ? '+'
: '*' );
}
putchar( '\n' );
}
printf("Non-0s: %d\n", count);
}
int
main( int argc,
char** argv )
{
FT_Library library;
FT_Face face;
FT_GlyphSlot slot;
FT_Error error;
FT_UInt glyphIndex;
char* filename;
char* text;
int target_height;
if ( argc != 6 )
{
fprintf ( stderr, "usage: %s font sample-text width height angle\n", argv[0] );
exit( 1 );
}
// Only test the character 'w'
text = "w";
filename = argv[1]; /* first argument */
WIDTH = atoi(argv[3]);
HEIGHT = atoi(argv[4]);
target_height = HEIGHT;
image = (unsigned char*)malloc(WIDTH*HEIGHT);
for (int x = 0; x < WIDTH; x++)
for (int y = 0; y < HEIGHT; y++)
image[y*WIDTH + x] = 0;
error = FT_Init_FreeType( &library ); /* initialize library */
if (error) printf("Init Error! %d\n", error);
error = FT_New_Face( library, argv[1], 0, &face ); /* create face object */
if (error) printf("New_Face Error! %d\n", error);
/* use 50pt at 100dpi */
error = FT_Set_Char_Size( face, 0, 32 * 64, 0, 0 ); /* set character size */
if (error) printf("Set_Cshar_Size Error! %d\n", error);
slot = face->glyph;
glyphIndex = FT_Get_Char_Index(face, text[0]);
/* load glyph image into the slot (erase previous one) */
error = FT_Load_Glyph(face, glyphIndex, FT_LOAD_NO_BITMAP);
if(error) printf("FT_Load_Glyph Error! %d\n", error);
error = FT_Render_Glyph(slot, FT_RENDER_MODE_NORMAL);
if(error) printf("FT_Render_Glyph Error! %d\n", error);
/* now, draw to our target surface (convert position) */
draw_bitmap(&slot->bitmap, slot->bitmap_left, target_height - slot->bitmap_top);
show_image();
FT_Done_Face(face);
FT_Done_FreeType(library);
return 0;
}
/* EOF */
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