87     png_infop  info_ptr;  in writepng_init()  local
98     info_ptr = png_create_info_struct(png_ptr);  in writepng_init()
99     if (!info_ptr) {  in writepng_init()
112         png_destroy_write_struct(&png_ptr, &info_ptr);  in writepng_init()
149         png_destroy_write_struct(&png_ptr, &info_ptr);  in writepng_init()
156     png_set_IHDR(png_ptr, info_ptr, mainprog_ptr->width, mainprog_ptr->height,  in writepng_init()
161         png_set_gAMA(png_ptr, info_ptr, mainprog_ptr->gamma);  in writepng_init()
169         png_set_bKGD(png_ptr, info_ptr, &background);  in writepng_init()
176         png_set_tIME(png_ptr, info_ptr, &modtime);  in writepng_init()
219         png_set_text(png_ptr, info_ptr, text, num_text);  in writepng_init()
225     png_write_info(png_ptr, info_ptr);  in writepng_init()
245     mainprog_ptr->info_ptr = info_ptr;  in writepng_init()
262     png_infop info_ptr = (png_infop)mainprog_ptr->info_ptr;  in writepng_encode_image()  local
269         png_destroy_write_struct(&png_ptr, &info_ptr);  in writepng_encode_image()
271         mainprog_ptr->info_ptr = NULL;  in writepng_encode_image()
300     png_infop info_ptr = (png_infop)mainprog_ptr->info_ptr;  in writepng_encode_row()  local
307         png_destroy_write_struct(&png_ptr, &info_ptr);  in writepng_encode_row()
309         mainprog_ptr->info_ptr = NULL;  in writepng_encode_row()
330     png_infop info_ptr = (png_infop)mainprog_ptr->info_ptr;  in writepng_encode_finish()  local
337         png_destroy_write_struct(&png_ptr, &info_ptr);  in writepng_encode_finish()
339         mainprog_ptr->info_ptr = NULL;  in writepng_encode_finish()
359     png_infop info_ptr = (png_infop)mainprog_ptr->info_ptr;  in writepng_cleanup()  local
361     if (png_ptr && info_ptr)  in writepng_cleanup()
362         png_destroy_write_struct(&png_ptr, &info_ptr);  in writepng_cleanup()