3005             png_bytep outrow = first_row + y * step_row;  in png_image_read_and_map()  local
3006             png_const_bytep end_row = outrow + width;  in png_image_read_and_map()
3015             outrow += startx;  in png_image_read_and_map()
3019                   for (; outrow < end_row; outrow += stepx)  in png_image_read_and_map()
3043                      *outrow = (png_byte)entry;  in png_image_read_and_map()
3048                   for (; outrow < end_row; outrow += stepx)  in png_image_read_and_map()
3054                         *outrow = PNG_CMAP_TRANS_BACKGROUND;  in png_image_read_and_map()
3057                         *outrow = gray;  in png_image_read_and_map()
3060                         *outrow = (png_byte)(PNG_CMAP_TRANS_BACKGROUND+1);  in png_image_read_and_map()
3065                   for (; outrow < end_row; outrow += stepx)  in png_image_read_and_map()
3067                      *outrow = PNG_RGB_INDEX(inrow[0], inrow[1], inrow[2]);  in png_image_read_and_map()
3073                   for (; outrow < end_row; outrow += stepx)  in png_image_read_and_map()
3083                         *outrow = PNG_RGB_INDEX(inrow[0], inrow[1],  in png_image_read_and_map()
3087                         *outrow = PNG_CMAP_RGB_ALPHA_BACKGROUND;  in png_image_read_and_map()
3115                         *outrow = (png_byte)back_i;  in png_image_read_and_map()
3323             png_bytep outrow;  in png_image_read_composite()  local
3329             outrow = png_voidcast(png_bytep, display->first_row);  in png_image_read_composite()
3330             outrow += y * step_row;  in png_image_read_composite()
3331             end_row = outrow + width * channels;  in png_image_read_composite()
3334             outrow += startx;  in png_image_read_composite()
3335             for (; outrow < end_row; outrow += stepx)  in png_image_read_composite()
3356                         component += (255-alpha)*png_sRGB_table[outrow[c]];  in png_image_read_composite()
3365                      outrow[c] = (png_byte)component;  in png_image_read_composite()
3484                      png_bytep outrow = first_row + y * step_row;  in png_image_read_background()  local
3485                      png_const_bytep end_row = outrow + width;  in png_image_read_background()
3491                      outrow += startx;  in png_image_read_background()
3492                      for (; outrow < end_row; outrow += stepx)  in png_image_read_background()
3507                               component += png_sRGB_table[outrow[0]] *  in png_image_read_background()
3512                            outrow[0] = (png_byte)component;  in png_image_read_background()
3529                      png_bytep outrow = first_row + y * step_row;  in png_image_read_background()  local
3530                      png_const_bytep end_row = outrow + width;  in png_image_read_background()
3536                      outrow += startx;  in png_image_read_background()
3537                      for (; outrow < end_row; outrow += stepx)  in png_image_read_background()
3552                            outrow[0] = (png_byte)component;  in png_image_read_background()
3556                            outrow[0] = background8;  in png_image_read_background()
3621                   png_uint_16p outrow = first_row + y*step_row;  in png_image_read_background()  local
3622                   png_uint_16p end_row = outrow + width * outchannels;  in png_image_read_background()
3631                   outrow += startx;  in png_image_read_background()
3632                   for (; outrow < end_row; outrow += stepx)  in png_image_read_background()
3650                      outrow[swap_alpha] = (png_uint_16)component;  in png_image_read_background()
3652                         outrow[1 ^ swap_alpha] = alpha;  in png_image_read_background()