[cairo-bugs] [Bug 106967] New: cairo_ft_font_face_create_for_ft_face causes segmentation fault

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106967

            Bug ID: 106967
           Summary: cairo_ft_font_face_create_for_ft_face causes
                    segmentation fault
           Product: cairo
           Version: 1.12.14
          Hardware: x86-64 (AMD64)
                OS: Windows (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: freetype font backend
          Assignee: david at freetype.org
          Reporter: longfeiqiu2012 at gmail.com
        QA Contact: cairo-bugs at cairographics.org

I am using cairo on MinGW-w64, Windows 10. The following code produces a crash:

#include <ft2build.h>
#include <cairo/cairo.h>
#include <cairo/cairo-ft.h>

int main(){
  FT_Library ft;
  FT_Face textFont;
  cairo_font_face_t *cairoFont;
  FT_Init_FreeType(&ft);
  FT_New_Face(ft,"Hack-Regular.ttf",0,&textFont);
  cairoFont = cairo_ft_font_face_create_for_ft_face(textFont,0); // This line
produces segmentation fault
  return 0;
}

The problem seems to be that EnterCriticalSection is called before
InitializeCriticalSection. A quick workaround is to initialize it manually:

#include <ft2build.h>
#include <cairo/cairo.h>
#include <cairo/cairo-ft.h>

extern "C" void _cairo_mutex_initialize();

int main(){
  FT_Library ft;
  FT_Face textFont;
  cairo_font_face_t *cairoFont;
  FT_Init_FreeType(&ft);
  FT_New_Face(ft,"Hack-Regular.ttf",0,&textFont);
  _cairo_mutex_initialize(); //This eliminates the segfault
  cairoFont = cairo_ft_font_face_create_for_ft_face(textFont,0);
  return 0;
}

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