86     png_infop  info_ptr;  in writepng_init()  local
97     info_ptr = png_create_info_struct(png_ptr);  in writepng_init()
98     if (!info_ptr) {  in writepng_init()
110         png_destroy_write_struct(&png_ptr, &info_ptr);  in writepng_init()
147         png_destroy_write_struct(&png_ptr, &info_ptr);  in writepng_init()
154     png_set_IHDR(png_ptr, info_ptr, mainprog_ptr->width, mainprog_ptr->height,  in writepng_init()
159         png_set_gAMA(png_ptr, info_ptr, mainprog_ptr->gamma);  in writepng_init()
167         png_set_bKGD(png_ptr, info_ptr, &background);  in writepng_init()
174         png_set_tIME(png_ptr, info_ptr, &modtime);  in writepng_init()
217         png_set_text(png_ptr, info_ptr, text, num_text);  in writepng_init()
223     png_write_info(png_ptr, info_ptr);  in writepng_init()
243     mainprog_ptr->info_ptr = info_ptr;  in writepng_init()
260     png_infop info_ptr = (png_infop)mainprog_ptr->info_ptr;  in writepng_encode_image()  local
267         png_destroy_write_struct(&png_ptr, &info_ptr);  in writepng_encode_image()
269         mainprog_ptr->info_ptr = NULL;  in writepng_encode_image()
298     png_infop info_ptr = (png_infop)mainprog_ptr->info_ptr;  in writepng_encode_row()  local
305         png_destroy_write_struct(&png_ptr, &info_ptr);  in writepng_encode_row()
307         mainprog_ptr->info_ptr = NULL;  in writepng_encode_row()
328     png_infop info_ptr = (png_infop)mainprog_ptr->info_ptr;  in writepng_encode_finish()  local
335         png_destroy_write_struct(&png_ptr, &info_ptr);  in writepng_encode_finish()
337         mainprog_ptr->info_ptr = NULL;  in writepng_encode_finish()
357     png_infop info_ptr = (png_infop)mainprog_ptr->info_ptr;  in writepng_cleanup()  local
359     if (png_ptr && info_ptr)  in writepng_cleanup()
360         png_destroy_write_struct(&png_ptr, &info_ptr);  in writepng_cleanup()