PNG_FLAG_OPTIMIZE_ALPHA  111 3rdparty/libpng/pngrtran.c    png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
PNG_FLAG_OPTIMIZE_ALPHA  291 3rdparty/libpng/pngrtran.c          png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
PNG_FLAG_OPTIMIZE_ALPHA  297 3rdparty/libpng/pngrtran.c          png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
PNG_FLAG_OPTIMIZE_ALPHA  305 3rdparty/libpng/pngrtran.c          png_ptr->flags |= PNG_FLAG_OPTIMIZE_ALPHA;
PNG_FLAG_OPTIMIZE_ALPHA  312 3rdparty/libpng/pngrtran.c          png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
PNG_FLAG_OPTIMIZE_ALPHA 1112 3rdparty/libpng/pngrtran.c       png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
PNG_FLAG_OPTIMIZE_ALPHA 1178 3rdparty/libpng/pngrtran.c          png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
PNG_FLAG_OPTIMIZE_ALPHA 1355 3rdparty/libpng/pngrtran.c       png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
PNG_FLAG_OPTIMIZE_ALPHA 1375 3rdparty/libpng/pngrtran.c       png_ptr->flags &= ~PNG_FLAG_OPTIMIZE_ALPHA;
PNG_FLAG_OPTIMIZE_ALPHA 3502 3rdparty/libpng/pngrtran.c    int optimize = (png_ptr->flags & PNG_FLAG_OPTIMIZE_ALPHA) != 0;