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[ft-devel] Why my memory is not been freed?


From: Jun.Wang
Subject: [ft-devel] Why my memory is not been freed?
Date: Fri, 6 Mar 2009 19:31:42 -0800 (PST)

I did the memory debug with a little modify. 
     1. In FT_Done_FreeType( FT_Library  library ),  I disabled the line:
FT_Done_Library( library ), so the memory report will disaply the current
memory.

     2. I call FT_Done_FreeType() before FT_Done_Face(), and I getted the
follws report:
        //only load 1 character
        FreeType Memory Dump: current=776564 max=776795 total=781508
count=59
        //load 35 diff characters
        FreeType Memory Dump: current=777225 max=777579 total=783118
count=59
        //load 150K characters, there are some same characters
        FreeType Memory Dump: current=779033 max=780079 total=34608360
count=60
        
        after the FT_Done_Face(g_FTFace), the current for above all are
same: 
        FreeType Memory Dump: current=42697 max=777579 total=783118 count=21

        It Looks while don't do FT_Done_Face(), the memory will increase
with the loaded numbers

    3. I do the load as follows:
       for(i = 0; i < Size; i++){
        FT_Load_Glyph(g_FTFace, currChar[i],  FT_LOAD_RENDER);
        bitmap = &(g_FTFace->glyph->bitmap);
        uiPixMode = g_FTFace->glyph->bitmap.pixel_mode;
        bitmap_top = g_FTFace->glyph->bitmap_top;
        bitmap_left = g_FTFace->glyph->bitmap_left;
        bitmap_rows = bitmap->rows;
       darw(bitmap);
      }

Is there function to free memory after every FT_Load_Glyph? If do
FT_Done_Face() every time, then I need FT_New_Face every time also.

My freetype2 lib is 2.2.1.

Thanks for your reply.
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