2037       unsigned int gray = (i * 256 + 115) / 231;  in make_ga_colormap()  local
2038       png_create_colormap_entry(display, i++, gray, gray, gray, 255, P_sRGB);  in make_ga_colormap()
2202                trans = png_ptr->trans_color.gray;  in png_image_read_colormap()
2290                      png_uint_32 gray = back_g;  in png_image_read_colormap()  local
2294                         gray = PNG_sRGB_FROM_LINEAR(gray * 255);  in png_image_read_colormap()
2299                         png_create_colormap_entry(display, gray, back_g, back_g,  in png_image_read_colormap()
2307                      c.gray = c.red = c.green = c.blue = (png_uint_16)gray;  in png_image_read_colormap()
2400                png_uint_32 gray = back_g;  in png_image_read_colormap()  local
2409                   gray = PNG_sRGB_FROM_LINEAR(gray * 255);  in png_image_read_colormap()
2412                   png_create_colormap_entry(display, gray, back_g, back_g,  in png_image_read_colormap()
2420                c.gray = c.red = c.green = c.blue = (png_uint_16)gray;  in png_image_read_colormap()
2442                   png_uint_32 gray = (i * 256 + 115) / 231;  in png_image_read_colormap()  local
2443                   png_create_colormap_entry(display, i++, gray, gray, gray,  in png_image_read_colormap()
2494                      png_uint_32 gray = png_sRGB_table[g*51] * alpha;  in png_image_read_colormap()  local
2497                          PNG_sRGB_FROM_LINEAR(gray + back_rx),  in png_image_read_colormap()
2498                          PNG_sRGB_FROM_LINEAR(gray + back_gx),  in png_image_read_colormap()
2499                          PNG_sRGB_FROM_LINEAR(gray + back_bx), 255, P_sRGB);  in png_image_read_colormap()
2583                   png_uint_32 gray = back_g;  in png_image_read_colormap()  local
2598                         gray = png_sRGB_table[gray]; /* now P_LINEAR */  in png_image_read_colormap()
2600                      gray = PNG_DIV257(png_gamma_16bit_correct(gray,  in png_image_read_colormap()
2606                      png_create_colormap_entry(display, gray, back_g, back_g,  in png_image_read_colormap()
2612                      gray = PNG_sRGB_FROM_LINEAR(gray * 255);  in png_image_read_colormap()
2616                      png_create_colormap_entry(display, gray, back_g, back_g,  in png_image_read_colormap()
2624                   c.gray = c.red = c.green = c.blue = (png_uint_16)gray;  in png_image_read_colormap()
2777                      c.gray = c.green = (png_uint_16)back_g;  in png_image_read_colormap()
3022                      unsigned int gray = *inrow++;  in png_image_read_and_map()  local
3032                         entry = (231 * gray + 128) >> 8;  in png_image_read_and_map()
3040                         entry = 226 + 6 * PNG_DIV51(alpha) + PNG_DIV51(gray);  in png_image_read_and_map()
3050                      png_byte gray = *inrow++;  in png_image_read_and_map()  local
3056                      else if (gray != PNG_CMAP_TRANS_BACKGROUND)  in png_image_read_and_map()
3057                         *outrow = gray;  in png_image_read_and_map()
3845                c.gray = display->background->green;  in png_image_read_direct()