2846             png_bytep outrow = first_row + y * step_row;  in png_image_read_and_map()  local
2847             png_const_bytep end_row = outrow + width;  in png_image_read_and_map()
2856             outrow += startx;  in png_image_read_and_map()
2860                   for (; outrow < end_row; outrow += stepx)  in png_image_read_and_map()
2884                      *outrow = (png_byte)entry;  in png_image_read_and_map()
2889                   for (; outrow < end_row; outrow += stepx)  in png_image_read_and_map()
2895                         *outrow = PNG_CMAP_TRANS_BACKGROUND;  in png_image_read_and_map()
2898                         *outrow = gray;  in png_image_read_and_map()
2901                         *outrow = (png_byte)(PNG_CMAP_TRANS_BACKGROUND+1);  in png_image_read_and_map()
2906                   for (; outrow < end_row; outrow += stepx)  in png_image_read_and_map()
2908                      *outrow = PNG_RGB_INDEX(inrow[0], inrow[1], inrow[2]);  in png_image_read_and_map()
2914                   for (; outrow < end_row; outrow += stepx)  in png_image_read_and_map()
2924                         *outrow = PNG_RGB_INDEX(inrow[0], inrow[1],  in png_image_read_and_map()
2928                         *outrow = PNG_CMAP_RGB_ALPHA_BACKGROUND;  in png_image_read_and_map()
2956                         *outrow = (png_byte)back_i;  in png_image_read_and_map()
3165             png_bytep outrow;  in png_image_read_composite()  local
3171             outrow = png_voidcast(png_bytep, display->first_row);  in png_image_read_composite()
3172             outrow += y * step_row;  in png_image_read_composite()
3173             end_row = outrow + width * channels;  in png_image_read_composite()
3176             outrow += startx;  in png_image_read_composite()
3177             for (; outrow < end_row; outrow += stepx)  in png_image_read_composite()
3198                         component += (255-alpha)*png_sRGB_table[outrow[c]];  in png_image_read_composite()
3207                      outrow[c] = (png_byte)component;  in png_image_read_composite()
3327                      png_bytep outrow = first_row + y * step_row;  in png_image_read_background()  local
3328                      png_const_bytep end_row = outrow + width;  in png_image_read_background()
3334                      outrow += startx;  in png_image_read_background()
3335                      for (; outrow < end_row; outrow += stepx)  in png_image_read_background()
3350                               component += png_sRGB_table[outrow[0]] *  in png_image_read_background()
3355                            outrow[0] = (png_byte)component;  in png_image_read_background()
3372                      png_bytep outrow = first_row + y * step_row;  in png_image_read_background()  local
3373                      png_const_bytep end_row = outrow + width;  in png_image_read_background()
3379                      outrow += startx;  in png_image_read_background()
3380                      for (; outrow < end_row; outrow += stepx)  in png_image_read_background()
3395                            outrow[0] = (png_byte)component;  in png_image_read_background()
3399                            outrow[0] = background8;  in png_image_read_background()
3460                   png_uint_16p outrow = first_row + y*step_row;  in png_image_read_background()  local
3461                   png_uint_16p end_row = outrow + width * outchannels;  in png_image_read_background()
3470                   outrow += startx;  in png_image_read_background()
3471                   for (; outrow < end_row; outrow += stepx)  in png_image_read_background()
3489                      outrow[swap_alpha] = (png_uint_16)component;  in png_image_read_background()
3491                         outrow[1 ^ swap_alpha] = alpha;  in png_image_read_background()