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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"
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