21  * row_info bit depth should be 8 (one pixel per byte).  The channels
30       row_info->channels == 1)  in png_do_pack()
156       row_info->pixel_depth = (png_byte)(bit_depth * row_info->channels);  in png_do_pack()
180       unsigned int channels = 0;  in png_do_shift()  local
184          shift_start[channels] = row_info->bit_depth - bit_depth->red;  in png_do_shift()
185          shift_dec[channels] = bit_depth->red;  in png_do_shift()
186          channels++;  in png_do_shift()
188          shift_start[channels] = row_info->bit_depth - bit_depth->green;  in png_do_shift()
189          shift_dec[channels] = bit_depth->green;  in png_do_shift()
190          channels++;  in png_do_shift()
192          shift_start[channels] = row_info->bit_depth - bit_depth->blue;  in png_do_shift()
193          shift_dec[channels] = bit_depth->blue;  in png_do_shift()
194          channels++;  in png_do_shift()
199          shift_start[channels] = row_info->bit_depth - bit_depth->gray;  in png_do_shift()
200          shift_dec[channels] = bit_depth->gray;  in png_do_shift()
201          channels++;  in png_do_shift()
206          shift_start[channels] = row_info->bit_depth - bit_depth->alpha;  in png_do_shift()
207          shift_dec[channels] = bit_depth->alpha;  in png_do_shift()
208          channels++;  in png_do_shift()
253          png_uint_32 istop = channels * row_info->width;  in png_do_shift()
258             const unsigned int c = i%channels;  in png_do_shift()
282          png_uint_32 istop = channels * row_info->width;  in png_do_shift()
286             const unsigned int c = i%channels;  in png_do_shift()
520                 /*  png_byte channels;       number of channels (1-4) */  in png_do_write_transformations()
521                 /*  png_byte pixel_depth;    bits per pixel (depth*channels) */  in png_do_write_transformations()