C++ (Cpp) font_renderer_ft_get_glyph Beispiele

Beispiel #1

Datei: freetype.c Projekt: Alcaro/RetroArch

static bool font_renderer_create_atlas(ft_font_renderer_t *handle, float font_size)
{
   unsigned i, x, y;
   freetype_atlas_slot_t* slot = NULL;

   unsigned max_width = round((handle->face->bbox.xMax - handle->face->bbox.xMin) * font_size / handle->face->units_per_EM);
   unsigned max_height = round((handle->face->bbox.yMax - handle->face->bbox.yMin) * font_size / handle->face->units_per_EM);

   unsigned atlas_width        = max_width  * FT_ATLAS_COLS;

   unsigned atlas_height       = max_height * FT_ATLAS_ROWS;

   uint8_t *atlas_buffer       = (uint8_t*)
      calloc(atlas_width * atlas_height, 1);

   if (!atlas_buffer)
      return false;

   handle->atlas.buffer        = atlas_buffer;
   handle->atlas.width         = atlas_width;
   handle->atlas.height        = atlas_height;
   slot                        = handle->atlas_slots;

   for (y = 0; y < FT_ATLAS_ROWS; y++)
   {
      for (x = 0; x < FT_ATLAS_COLS; x++)
      {
         slot->glyph.atlas_offset_x = x * max_width;
         slot->glyph.atlas_offset_y = y * max_height;
         slot++;
      }
   }

   for (i = 0; i < 256; i++)
      font_renderer_ft_get_glyph(handle, i);

   for (i = 0; i < 256; i++)
      if(isalnum(i))
         font_renderer_ft_get_glyph(handle, i);

   return true;
}

Beispiel #2

Datei: freetype.c Projekt: lakkatv/RetroArch

static bool font_renderer_create_atlas(ft_font_renderer_t *handle, float font_size)
{
   unsigned i, x, y;
   freetype_atlas_slot_t* slot = NULL;

   /* TODO: find a better way to determine max_width/max_height */
   unsigned max_width          = font_size;
   unsigned max_height         = font_size;

   handle->atlas.width         = max_width  * FT_ATLAS_COLS;
   handle->atlas.height        = max_height * FT_ATLAS_ROWS;

   handle->atlas.buffer        = (uint8_t*)
      calloc(handle->atlas.width * handle->atlas.height, 1);

   if (!handle->atlas.buffer)
      return false;

   slot = handle->atlas_slots;

   for (y = 0; y < FT_ATLAS_ROWS; y++)
   {
      for (x = 0; x < FT_ATLAS_COLS; x++)
      {
         slot->glyph.atlas_offset_x = x * max_width;
         slot->glyph.atlas_offset_y = y * max_height;
         slot++;
      }
   }

   for (i = 0; i < 256; i++)
      font_renderer_ft_get_glyph(handle, i);

   for (i = 0; i < 256; i++)
      if(isalnum(i))
         font_renderer_ft_get_glyph(handle, i);

   return true;
}