2017       unsigned int gray = (i * 256 + 115) / 231;  in make_ga_colormap()  local
2018       png_create_colormap_entry(display, i++, gray, gray, gray, 255, P_sRGB);  in make_ga_colormap()
2182                trans = png_ptr->trans_color.gray;  in png_image_read_colormap()
2270                      png_uint_32 gray = back_g;  in png_image_read_colormap()  local
2274                         gray = PNG_sRGB_FROM_LINEAR(gray * 255);  in png_image_read_colormap()
2279                         png_create_colormap_entry(display, gray, back_g, back_g,  in png_image_read_colormap()
2287                      c.gray = c.red = c.green = c.blue = (png_uint_16)gray;  in png_image_read_colormap()
2380                png_uint_32 gray = back_g;  in png_image_read_colormap()  local
2389                   gray = PNG_sRGB_FROM_LINEAR(gray * 255);  in png_image_read_colormap()
2392                   png_create_colormap_entry(display, gray, back_g, back_g,  in png_image_read_colormap()
2400                c.gray = c.red = c.green = c.blue = (png_uint_16)gray;  in png_image_read_colormap()
2422                   png_uint_32 gray = (i * 256 + 115) / 231;  in png_image_read_colormap()  local
2423                   png_create_colormap_entry(display, i++, gray, gray, gray,  in png_image_read_colormap()
2474                      png_uint_32 gray = png_sRGB_table[g*51] * alpha;  in png_image_read_colormap()  local
2477                         PNG_sRGB_FROM_LINEAR(gray + back_rx),  in png_image_read_colormap()
2478                         PNG_sRGB_FROM_LINEAR(gray + back_gx),  in png_image_read_colormap()
2479                         PNG_sRGB_FROM_LINEAR(gray + back_bx), 255, P_sRGB);  in png_image_read_colormap()
2563                   png_uint_32 gray = back_g;  in png_image_read_colormap()  local
2578                         gray = png_sRGB_table[gray]; /* now P_LINEAR */  in png_image_read_colormap()
2580                      gray = PNG_DIV257(png_gamma_16bit_correct(gray,  in png_image_read_colormap()
2586                      png_create_colormap_entry(display, gray, back_g, back_g,  in png_image_read_colormap()
2592                      gray = PNG_sRGB_FROM_LINEAR(gray * 255);  in png_image_read_colormap()
2596                      png_create_colormap_entry(display, gray, back_g, back_g,  in png_image_read_colormap()
2604                   c.gray = c.red = c.green = c.blue = (png_uint_16)gray;  in png_image_read_colormap()
2757                      c.gray = c.green = (png_uint_16)back_g;  in png_image_read_colormap()
3002                      unsigned int gray = *inrow++;  in png_image_read_and_map()  local
3012                         entry = (231 * gray + 128) >> 8;  in png_image_read_and_map()
3020                         entry = 226 + 6 * PNG_DIV51(alpha) + PNG_DIV51(gray);  in png_image_read_and_map()
3030                      png_byte gray = *inrow++;  in png_image_read_and_map()  local
3036                      else if (gray != PNG_CMAP_TRANS_BACKGROUND)  in png_image_read_and_map()
3037                         *outrow = gray;  in png_image_read_and_map()
3820                c.gray = display->background->green;  in png_image_read_direct()