shithub: freetype+ttf2subf

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simple update to allow several rendering modes
(useful for testing the Unicode charmaps)

git/fs: mount .git/fs: mount/attach disallowed

--- a/demos/src/ftview.c

+++ b/demos/src/ftview.c

@@ -38,6 +38,10 @@

   char  Header[128];

   char* new_header = 0;

+  const unsigned char*  Text =

+"The quick brown fox jumped over the lazy dog 0123456789 \

+���������������� &#~\"'(-`_^@)=+� ABCDEFGHIJKLMNOPQRSTUVWXYZ $�^�*��%!�:/;.,?<>";

+

   FT_Library    library;      /* the FreeType library            */

   FT_Face       face;         /* the font face                   */

   FT_Size       size;         /* the font size                   */

@@ -66,6 +70,8 @@

   int  graph_init = 0;

+  int  render_mode = 1;

+

 #define DEBUGxxx

 #ifdef DEBUG

@@ -188,7 +194,7 @@

       bit3.buffer = glyph->bitmap.buffer;

       bit3.grays  = 0;

     }

-      

+

     /* Then, blit the image to the target surface */

     x_top = x_offset + TRUNC(left);

     y_top = y_offset - TRUNC(top);

@@ -292,6 +298,68 @@

   }

+  static FT_Error  Render_Text( int  first_glyph, int  ptsize )

+  {

+    FT_F26Dot6  start_x, start_y, step_x, step_y, x, y;

+    int         i;

+

+    FT_Error             error;

+    const unsigned char* p;

+

+    start_x = 4;

+    start_y = 12 + size->metrics.y_ppem;

+

+    step_x = size->metrics.x_ppem + 4;

+    step_y = size->metrics.y_ppem + 10;

+

+    x = start_x;

+    y = start_y;

+

+    i = first_glyph;

+    p = Text;

+    while (i > 0 && *p) { p++; i--; }

+

+    while ( *p )

+    {

+      if ( !(error = LoadChar( FT_Get_Char_Index( face, (unsigned char)*p ), hinted )) )

+      {

+#ifdef DEBUG

+        if (i <= first_glyph+6)

+        {

+          LOG(( "metrics[%02d] = [%x %x]\n",

+                i,

+                glyph->metrics.horiBearingX,

+                glyph->metrics.horiAdvance ));

+

+          if (i == first_glyph+6)

+          LOG(( "-------------------------\n"));

+        }

+        

+#endif

+        Render_Glyph( x, y );

+

+        x += ( glyph->metrics.horiAdvance >> 6 ) + 1;

+

+        if ( x + size->metrics.x_ppem > bit.width )

+        {

+          x  = start_x;

+          y += step_y;

+

+          if ( y >= bit.rows )

+            return FT_Err_Ok;

+        }

+      }

+      else

+        Fail++;

+

+      i++;

+      p++;

+    }

+

+    return FT_Err_Ok;

+  }

+

+

   static void Help( )

   {

     grEvent  dummy_event;

@@ -313,6 +381,7 @@

     grWriteln("  h         : toggle outline hinting" );

     grWriteln("  b         : toggle embedded bitmaps" );

     grWriteln("  l         : toggle low precision rendering" );

+    grWriteln("  space     : toggle rendering mode" );

     grLn();

     grWriteln("  Up        : increase pointsize by 1 unit" );

     grWriteln("  Down      : decrease pointsize by 1 unit" );

@@ -379,6 +448,13 @@

                    : "glyph hinting is now ignored" );

       break;

+    case grKEY(' '):

+      render_mode ^= 1;

+      new_header = ( render_mode

+                   ? "rendering all glyphs in font"

+                   : "rendering test text string" );

+      break;

+

     case grKeyF1:

     case grKEY('?'):

       Help();

@@ -575,7 +651,15 @@

       if ( file_loaded >= 1 )

       {

-        Render_All( Num, ptsize );

+        switch (render_mode)

+        {

+          case 0:

+            Render_Text( Num, ptsize );

+            break;

+            

+          default:

+            Render_All( Num, ptsize );

+        }

         sprintf( Header, "%s %s (file %s)",

                          face->family_name,