| inherit image_types |
| |
| # This sets the granularity of the sparse image conversion. Chunk sizes will be |
| # specified in units of this value. Setting this value smaller than the |
| # underlying image's block size will not result in any further space saving. |
| # However, there is no loss in correctness if this value is larger or smaller |
| # than optimal. This value should be a power of two. |
| SPARSE_BLOCK_SIZE ??= "4096" |
| |
| CONVERSIONTYPES += "sparse" |
| |
| CONVERSION_CMD:sparse = " \ |
| truncate --no-create --size=%${SPARSE_BLOCK_SIZE} "${IMAGE_NAME}.${type}"; \ |
| img2simg -s "${IMAGE_NAME}.${type}" "${IMAGE_NAME}.${type}.sparse" ${SPARSE_BLOCK_SIZE}; \ |
| " |
| |
| CONVERSION_DEPENDS_sparse = "android-tools-native" |