trans_color      2040 coders/png.c           (Quantum)(ping_info->trans_color.red & bit_mask);
trans_color      2042 coders/png.c           (Quantum) (ping_info->trans_color.green & bit_mask);
trans_color      2044 coders/png.c           (Quantum) (ping_info->trans_color.blue & bit_mask);
trans_color      2046 coders/png.c           (Quantum) (ping_info->trans_color.gray & bit_mask);
trans_color      6659 coders/png.c                     ping_info->trans_color.red=ScaleQuantumToShort(p->red)&mask;
trans_color      6660 coders/png.c                     ping_info->trans_color.green=ScaleQuantumToShort(p->green)
trans_color      6662 coders/png.c                     ping_info->trans_color.blue=ScaleQuantumToShort(p->blue)
trans_color      6664 coders/png.c                     ping_info->trans_color.gray=
trans_color      6666 coders/png.c                     ping_info->trans_color.index=(unsigned char)
trans_color      6687 coders/png.c                             if (!RGBColorMatchExact(ping_info->trans_color,*p))
trans_color      6700 coders/png.c                             if (RGBColorMatchExact(ping_info->trans_color,*p))
trans_color      6718 coders/png.c                     ping_info->trans_color.red&=0xff;
trans_color      6719 coders/png.c                     ping_info->trans_color.green&=0xff;
trans_color      6720 coders/png.c                     ping_info->trans_color.blue&=0xff;
trans_color      6721 coders/png.c                     ping_info->trans_color.gray&=0xff;
trans_color      6737 coders/png.c                   ping_info->trans_color.gray*=0x0101;
trans_color      6961 coders/png.c                   ping_info->trans_color.red*=0x0101;
trans_color      6962 coders/png.c                   ping_info->trans_color.green*=0x0101;
trans_color      6963 coders/png.c                   ping_info->trans_color.blue*=0x0101;
trans_color      6964 coders/png.c                   ping_info->trans_color.gray*=0x0101;
trans_color      6992 coders/png.c             ping_info->trans_color.gray=(png_uint_16)(maxval*
trans_color      6993 coders/png.c                                           ping_info->trans_color.gray/