541 #if defined(PNG_READ_GAMMA_SUPPORTED) && defined(PNG_FLOATING_POINT_SUPPORTED)
791     defined(PNG_READ_GAMMA_SUPPORTED)  in png_init_read_transformations()
906 #if defined(PNG_READ_BACKGROUND_SUPPORTED) && defined(PNG_READ_GAMMA_SUPPORTED)  in png_init_read_transformations()
909 #if defined(PNG_READ_GAMMA_SUPPORTED) && defined(PNG_FLOATING_POINT_SUPPORTED)  in png_init_read_transformations()
1189 #if !defined(PNG_READ_GAMMA_SUPPORTED) && !defined(PNG_READ_SHIFT_SUPPORTED) \  in png_init_read_transformations()
1240 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_read_transform_info()
1463 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_do_read_transformations()
1473 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_do_read_transformations()
2351 #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)  in png_do_rgb_to_gray()
2395 #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)  in png_do_rgb_to_gray()
2457 #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)  in png_do_rgb_to_gray()
2493 #if defined(PNG_READ_GAMMA_SUPPORTED) || defined(PNG_READ_BACKGROUND_SUPPORTED)  in png_do_rgb_to_gray()
2627     defined(PNG_READ_GAMMA_SUPPORTED) && \  in png_correct_palette()
2737 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_correct_palette()
2810 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_do_background()
2863 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_do_background()
2920 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_do_background()
2977 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_do_background()
3010 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_do_background()
3059 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_do_background()
3100 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_do_background()
3164 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_do_background()
3206 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_do_background()
3223 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_do_background()
3241 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_do_background()
3251 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_do_background()
3277 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_do_background()
3286 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_do_background()
3307 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_do_background()
3380 #ifdef PNG_READ_GAMMA_SUPPORTED  in png_do_background()
3497 #ifdef PNG_READ_GAMMA_SUPPORTED
4145 #ifdef PNG_READ_GAMMA_SUPPORTED