subject:"\[ft\] building library from the source code"

Re: [ft] building library from the source code

2013-03-12 Thread suzuki toshiya


Dear Kanungo,

Sorry for my lated response. I could reproduce your
trouble with MinGW32 (Output.txt is long, but no
filled pixel). Please wait a while for further
investigation...

Regards,
mpsuzuki

Parth Kanungo wrote:

Hi,

Can anyone help me with this problem ?

I have a feeling that this problem is happening because of some minor
mistake. But, I have been unable to rectify it.

Thanks a lot.



On Thu, Mar 7, 2013 at 2:49 PM, Parth Kanungo kanungopa...@gmail.comwrote:


Here is the sample code that I used.
Please change the value of inFileName[], when you run the program.
The output is generated in a output.txt file.
I observed it by enabling WORD-WRAP in the Notepad++ and then, zooming out.



/* example1.c  */
/* */
/* This small program shows how to print a string with the */
/* FreeType 2 library. */


#include stdio.h
#include stdlib.h
#include conio.h
#include string.h
#include math.h

#include ft2build.h
#include FT_FREETYPE_H


#define WIDTH   640
#define HEIGHT  480



/* origin is the upper left corner */
unsigned char image[HEIGHT][WIDTH];

/* 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;

int val = 0;
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][i] |= bitmap-buffer[q * bitmap-width + p];
 if(bitmap-buffer[q * bitmap-width + p]  0) {
val |= bitmap-buffer[q * bitmap-width + p];
 }
}
}
}


void
show_image( void )
{
int  i, j;

FILE *fp1 = fopen(Output.txt, w);
 for ( i = 0; i  HEIGHT; i++ )
{
for ( j = 0; j  WIDTH; j++ )
 /* putchar( image[i][j] == 0 ? ' '
: image[i][j]  128 ? '+'
 : '*' );
putchar( '\n' );
*/
{
 if(image[i][j] == 0)
fprintf(fp1, %c, ' ');
else if (image[i][j]  128)
 fprintf(fp1, %c, '+');
else
fprintf(fp1, %c, '*');
 }
fprintf(fp1, %c, '\n');
}
 fclose(fp1);
}


int main( int argc, char**  argv )
{
FT_Librarylibrary;
 FT_Face   face;

FT_GlyphSlot  slot;
FT_Matrix matrix; /* transformation matrix */
 FT_Vector pen;/* untransformed origin  */
FT_Error  error;

char fontName[256];
char
inFileName[]=D:\\FREETYPE\\freetype-2.4.2\\freetype-2.4.2\\builds\\win32\\vc2005\\arial.ttf;
 char text[] = Font Experts;

doubleangle;
 int   target_height;
int   n, num_chars;




num_chars = strlen( (char*)text );
angle = 0;//( 25.0 / 360 ) * 3.14159 * 2;  /* use 25 degrees
  */
 target_height = HEIGHT;

error = FT_Init_FreeType( library );  /* initialize library */
 if(error)
{
fprintf ( stderr, FT_Init_FreeType: failed );
 exit( 1 );
}

error = FT_New_Face( library, inFileName, 0, face );/* create face object
*/
 if(error)
{
fprintf ( stderr, FT_New_Face: failed );
 exit( 1 );
}

/* use 50pt at 100dpi */
 error = FT_Set_Char_Size( face, 50 * 64, 0,
100, 0 );/* set character size */
 /* error handling omitted */

slot = face-glyph;

 /* set up matrix */
matrix.xx = (FT_Fixed)( cos( angle ) * 0x1L );
matrix.xy = (FT_Fixed)(-sin( angle ) * 0x1L );
 matrix.yx = (FT_Fixed)( sin( angle ) * 0x1L );
matrix.yy = (FT_Fixed)( cos( angle ) * 0x1L );

/* the pen position in 26.6 cartesian space coordinates; */
/* start at (300,200) relative to the upper left corner  */
 pen.x = 300 * 64;
pen.y = ( target_height - 200 ) * 64;

for ( n = 0; n  num_chars; n++ )
 {
/* set transformation */
FT_Set_Transform( face, matrix, pen );

/* load glyph image into the slot (erase previous one) */
error = FT_Load_Char( face, text[n], FT_LOAD_RENDER );
 if ( error )
continue; /* ignore errors */

 /* now, draw to our target surface (convert position) */
draw_bitmap( slot-bitmap,
 slot-bitmap_left,
target_height - slot-bitmap_top );

 /* increment pen position */
pen.x += slot-advance.x;
pen.y += slot-advance.y;
 }

show_image();

FT_Done_Face( face );
 FT_Done_FreeType( library );
return 0;
}

/* EOF */





















On Thu, Mar 7, 2013 at 11:10 AM, suzuki toshiya 
mpsuz...@hiroshima-u.ac.jp wrote:


Hi,

Could you post some sample source that you could display a blank screen?

Regards,
mpsuzuki

Parth Kanungo wrote:

Hi all,

I used the sample code on the FreeType Documentation Page (PART-1). To

run

the code, when I used the libraries from GTK+ bundle, my output was

perfect.

However, when I created freetype.lib myself from the downloaded source

code

and used it, the output showed a blank screen.

To ensure that there was no version mismatch, I checked from the GTK
website (http://www.gtk.org/download/win32.php) and found that GTK+

bundle

currently uses freetype 2.4.2 version. Hence, I used

Re: [ft] building library from the source code

2013-03-07 Thread Parth Kanungo

Here is the sample code that I used.
Please change the value of inFileName[], when you run the program.
The output is generated in a output.txt file.
I observed it by enabling WORD-WRAP in the Notepad++ and then, zooming out.



/* example1.c  */
/* */
/* This small program shows how to print a string with the */
/* FreeType 2 library. */


#include stdio.h
#include stdlib.h
#include conio.h
#include string.h
#include math.h

#include ft2build.h
#include FT_FREETYPE_H


#define WIDTH   640
#define HEIGHT  480



/* origin is the upper left corner */
unsigned char image[HEIGHT][WIDTH];

/* 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;

int val = 0;
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][i] |= bitmap-buffer[q * bitmap-width + p];
if(bitmap-buffer[q * bitmap-width + p]  0) {
val |= bitmap-buffer[q * bitmap-width + p];
}
}
}
}


void
show_image( void )
{
int  i, j;

FILE *fp1 = fopen(Output.txt, w);
for ( i = 0; i  HEIGHT; i++ )
{
for ( j = 0; j  WIDTH; j++ )
/* putchar( image[i][j] == 0 ? ' '
: image[i][j]  128 ? '+'
: '*' );
putchar( '\n' );
*/
{
if(image[i][j] == 0)
fprintf(fp1, %c, ' ');
else if (image[i][j]  128)
fprintf(fp1, %c, '+');
else
fprintf(fp1, %c, '*');
}
fprintf(fp1, %c, '\n');
}
fclose(fp1);
}


int main( int argc, char**  argv )
{
FT_Librarylibrary;
FT_Face   face;

FT_GlyphSlot  slot;
FT_Matrix matrix; /* transformation matrix */
FT_Vector pen;/* untransformed origin  */
FT_Error  error;

char fontName[256];
char
inFileName[]=D:\\FREETYPE\\freetype-2.4.2\\freetype-2.4.2\\builds\\win32\\vc2005\\arial.ttf;
 char text[] = Font Experts;

doubleangle;
int   target_height;
int   n, num_chars;




num_chars = strlen( (char*)text );
angle = 0;//( 25.0 / 360 ) * 3.14159 * 2;  /* use 25 degrees
  */
target_height = HEIGHT;

error = FT_Init_FreeType( library );  /* initialize library */
if(error)
{
fprintf ( stderr, FT_Init_FreeType: failed );
exit( 1 );
}

error = FT_New_Face( library, inFileName, 0, face );/* create face object
*/
if(error)
{
fprintf ( stderr, FT_New_Face: failed );
exit( 1 );
}

/* use 50pt at 100dpi */
error = FT_Set_Char_Size( face, 50 * 64, 0,
100, 0 );/* set character size */
/* error handling omitted */

slot = face-glyph;

/* set up matrix */
matrix.xx = (FT_Fixed)( cos( angle ) * 0x1L );
matrix.xy = (FT_Fixed)(-sin( angle ) * 0x1L );
matrix.yx = (FT_Fixed)( sin( angle ) * 0x1L );
matrix.yy = (FT_Fixed)( cos( angle ) * 0x1L );

/* the pen position in 26.6 cartesian space coordinates; */
/* start at (300,200) relative to the upper left corner  */
pen.x = 300 * 64;
pen.y = ( target_height - 200 ) * 64;

for ( n = 0; n  num_chars; n++ )
{
/* set transformation */
FT_Set_Transform( face, matrix, pen );

/* load glyph image into the slot (erase previous one) */
error = FT_Load_Char( face, text[n], FT_LOAD_RENDER );
if ( error )
continue; /* ignore errors */

/* now, draw to our target surface (convert position) */
draw_bitmap( slot-bitmap,
slot-bitmap_left,
target_height - slot-bitmap_top );

/* increment pen position */
pen.x += slot-advance.x;
pen.y += slot-advance.y;
}

show_image();

FT_Done_Face( face );
FT_Done_FreeType( library );
return 0;
}

/* EOF */





















On Thu, Mar 7, 2013 at 11:10 AM, suzuki toshiya
mpsuz...@hiroshima-u.ac.jpwrote:

 Hi,

 Could you post some sample source that you could display a blank screen?

 Regards,
 mpsuzuki

 Parth Kanungo wrote:
  Hi all,
 
  I used the sample code on the FreeType Documentation Page (PART-1). To
 run
  the code, when I used the libraries from GTK+ bundle, my output was
 perfect.
 
  However, when I created freetype.lib myself from the downloaded source
 code
  and used it, the output showed a blank screen.
 
  To ensure that there was no version mismatch, I checked from the GTK
  website (http://www.gtk.org/download/win32.php) and found that GTK+
 bundle
  currently uses freetype 2.4.2 version. Hence, I used that version of
  freetype to build the freetype.lib. But, I still face the same issue.
 
  Can anyone help me out here ?
 
 
  Thanks a lot.
 
 
  
 
  ___
  Freetype mailing list
  Freetype@nongnu.org
  https://lists.nongnu.org/mailman/listinfo/freetype




-- 
Parth Kanungo
Software Engineer,
Samsung RD Institute Delhi
Sector-62, Noida

Life would be flat without dreams. I

[ft] building library from the source code

2013-03-06 Thread Parth Kanungo

Hi all,

I used the sample code on the FreeType Documentation Page (PART-1). To run
the code, when I used the libraries from GTK+ bundle, my output was perfect.

However, when I created freetype.lib myself from the downloaded source code
and used it, the output showed a blank screen.

To ensure that there was no version mismatch, I checked from the GTK
website (http://www.gtk.org/download/win32.php) and found that GTK+ bundle
currently uses freetype 2.4.2 version. Hence, I used that version of
freetype to build the freetype.lib. But, I still face the same issue.

Can anyone help me out here ?


Thanks a lot.
-- 
Parth
___
Freetype mailing list
Freetype@nongnu.org
https://lists.nongnu.org/mailman/listinfo/freetype

Re: [ft] building library from the source code

2013-03-06 Thread suzuki toshiya

Hi,

Could you post some sample source that you could display a blank screen?

Regards,
mpsuzuki

Parth Kanungo wrote:
 Hi all,
 
 I used the sample code on the FreeType Documentation Page (PART-1). To run
 the code, when I used the libraries from GTK+ bundle, my output was perfect.
 
 However, when I created freetype.lib myself from the downloaded source code
 and used it, the output showed a blank screen.
 
 To ensure that there was no version mismatch, I checked from the GTK
 website (http://www.gtk.org/download/win32.php) and found that GTK+ bundle
 currently uses freetype 2.4.2 version. Hence, I used that version of
 freetype to build the freetype.lib. But, I still face the same issue.
 
 Can anyone help me out here ?
 
 
 Thanks a lot.
 
 
 
 
 ___
 Freetype mailing list
 Freetype@nongnu.org
 https://lists.nongnu.org/mailman/listinfo/freetype


___
Freetype mailing list
Freetype@nongnu.org
https://lists.nongnu.org/mailman/listinfo/freetype

Re: [ft] building library from the source code

Re: [ft] building library from the source code

[ft] building library from the source code

Re: [ft] building library from the source code

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