| 98 | std::string Txt::getCoverBmpPath() const { return cachePath + "/cover.bmp"; } |
| 99 | |
| 100 | bool Txt::generateCoverBmp() const { |
| 101 | // Already generated, return true |
| 102 | if (Storage.exists(getCoverBmpPath().c_str())) { |
| 103 | return true; |
| 104 | } |
| 105 | |
| 106 | std::string coverImagePath = findCoverImage(); |
| 107 | if (coverImagePath.empty()) { |
| 108 | LOG_DBG("TXT", "No cover image found for TXT file"); |
| 109 | return false; |
| 110 | } |
| 111 | |
| 112 | // Setup cache directory |
| 113 | setupCacheDir(); |
| 114 | |
| 115 | if (FsHelpers::hasBmpExtension(coverImagePath)) { |
| 116 | // Copy BMP file to cache |
| 117 | LOG_DBG("TXT", "Copying BMP cover image to cache"); |
| 118 | HalFile src, dst; |
| 119 | if (!Storage.openFileForRead("TXT", coverImagePath, src)) { |
| 120 | return false; |
| 121 | } |
| 122 | if (!Storage.openFileForWrite("TXT", getCoverBmpPath(), dst)) { |
| 123 | return false; |
| 124 | } |
| 125 | uint8_t buffer[1024]; |
| 126 | while (src.available()) { |
| 127 | size_t bytesRead = src.read(buffer, sizeof(buffer)); |
| 128 | dst.write(buffer, bytesRead); |
| 129 | } |
| 130 | LOG_DBG("TXT", "Copied BMP cover to cache"); |
| 131 | return true; |
| 132 | } else if (FsHelpers::hasJpgExtension(coverImagePath)) { |
| 133 | // Convert JPG/JPEG to BMP (same approach as Epub) |
| 134 | LOG_DBG("TXT", "Generating BMP from JPG cover image"); |
| 135 | HalFile coverJpg, coverBmp; |
| 136 | if (!Storage.openFileForRead("TXT", coverImagePath, coverJpg)) { |
| 137 | return false; |
| 138 | } |
| 139 | if (!Storage.openFileForWrite("TXT", getCoverBmpPath(), coverBmp)) { |
| 140 | return false; |
| 141 | } |
| 142 | const bool success = JpegToBmpConverter::jpegFileToBmpStream(coverJpg, coverBmp); |
| 143 | |
| 144 | if (!success) { |
| 145 | LOG_ERR("TXT", "Failed to generate BMP from JPG cover image"); |
| 146 | Storage.remove(getCoverBmpPath().c_str()); |
| 147 | } else { |
| 148 | LOG_DBG("TXT", "Generated BMP from JPG cover image"); |
| 149 | } |
| 150 | return success; |
| 151 | } |
| 152 | |
| 153 | // PNG files are not supported (would need a PNG decoder) |
| 154 | LOG_ERR("TXT", "Cover image format not supported (only BMP/JPG/JPEG)"); |
| 155 | return false; |
| 156 | } |
| 157 |
nothing calls this directly
no test coverage detected