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Difference between revisions of "Cine/Specifications"
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Fixed heading levels.
(Added a couple of links to Cine's unpacking code to help understanding of the way Delphine's unpacker handled the source stream chunks internally (And why the first chunk seems peculiar).) |
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</pre> | </pre> | ||
===Bit sequences in the compressed stream=== | ====Bit sequences in the compressed stream==== | ||
The whole packed data consists of commands and their parameters. | The whole packed data consists of commands and their parameters. | ||
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* We read one bit from the stream, it's 1. So the command has length of three bits. We read two more bits, they're 0 and 0 (i.e. 00b). So we've got command copyRelocatedBytes(9 bits, 3). Let's read 9 bits from the source stream and call that OFFSET. Then we'll call copyRelocatedBytes(OFFSET, 3). | * We read one bit from the stream, it's 1. So the command has length of three bits. We read two more bits, they're 0 and 0 (i.e. 00b). So we've got command copyRelocatedBytes(9 bits, 3). Let's read 9 bits from the source stream and call that OFFSET. Then we'll call copyRelocatedBytes(OFFSET, 3). | ||
===End of decompression=== | ====End of decompression==== | ||
The unpacking ends when we've written <i>unpacked length</i> bytes into the destination buffer. | The unpacking ends when we've written <i>unpacked length</i> bytes into the destination buffer. | ||