Lines Matching defs:info_ptr
197 png_info *info_ptr = NULL;
231 info_ptr = png_create_info_struct (png_ptr);
232 if (!info_ptr)
240 png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
249 png_read_info (png_ptr, info_ptr);
252 png_get_IHDR (png_ptr, info_ptr,
265 if (png_get_valid (png_ptr, info_ptr, PNG_INFO_tRNS))
277 if (png_get_gAMA (png_ptr, info_ptr, &file_gamma))
281 /* all transformations have been registered; now update info_ptr data,
284 png_read_update_info (png_ptr, info_ptr);
287 png_get_IHDR (png_ptr, info_ptr, &width, &height, &bit_depth, &color_type,
321 row_bytes = png_get_rowbytes (png_ptr, info_ptr);
325 png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
332 png_destroy_read_struct (&png_ptr, &info_ptr, NULL);
345 /* read rest of file, and get additional chunks in info_ptr - REQUIRED */
346 png_read_end (png_ptr, info_ptr);
349 png_destroy_read_struct (&png_ptr, &info_ptr, (png_infopp) NULL);
