| 50 | }; |
| 51 | |
| 52 | void NakedDecoder::parseHints() { |
| 53 | const auto& cHints = cam->hints; |
| 54 | const auto& make = cam->make.c_str(); |
| 55 | const auto& model = cam->model.c_str(); |
| 56 | |
| 57 | auto parseHint = [&cHints, &make, &model](const string& name) { |
| 58 | if (!cHints.has(name)) |
| 59 | ThrowRDE("%s %s: couldn't find %s", make, model, name.c_str()); |
| 60 | |
| 61 | return cHints.get(name, 0U); |
| 62 | }; |
| 63 | |
| 64 | width = parseHint("full_width"); |
| 65 | height = parseHint("full_height"); |
| 66 | |
| 67 | if (width == 0 || height == 0) |
| 68 | ThrowRDE("%s %s: image is of zero size?", make, model); |
| 69 | |
| 70 | filesize = parseHint("filesize"); |
| 71 | offset = cHints.get("offset", 0); |
| 72 | if (filesize == 0 || offset >= filesize) |
| 73 | ThrowRDE("%s %s: no image data found", make, model); |
| 74 | |
| 75 | bits = cHints.get("bits", (filesize-offset)*8/width/height); |
| 76 | if (bits == 0) |
| 77 | ThrowRDE("%s %s: image bpp is invalid: %u", make, model, bits); |
| 78 | |
| 79 | auto order = cHints.get("order", string()); |
| 80 | if (!order.empty()) { |
| 81 | try { |
| 82 | bo = order2enum.at(order); |
| 83 | } catch (std::out_of_range&) { |
| 84 | ThrowRDE("%s %s: unknown order: %s", make, model, order.c_str()); |
| 85 | } |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | RawImage NakedDecoder::decodeRawInternal() { |
| 90 | parseHints(); |