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82 lines
2.9 KiB
Odin
82 lines
2.9 KiB
Odin
package vendor_openexr
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import "core:c"
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@(link_prefix="exr_", default_calling_convention="c")
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foreign lib {
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/** Computes a buffer that will be large enough to hold the compressed
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* data. This may include some extra padding for headers / scratch */
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compress_max_buffer_size :: proc(in_bytes: c.size_t) -> c.size_t ---
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/** Compresses a buffer using a zlib style compression.
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*
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* If the level is -1, will use the default compression set to the library
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* \ref set_default_zip_compression_level
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* data. This may include some extra padding for headers / scratch */
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compress_buffer :: proc(
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ctxt: const_context_t,
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level: c.int,
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in_: rawptr,
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in_bytes: c.size_t,
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out: rawptr,
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out_bytes_avail: c.size_t,
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actual_out: ^c.size_t) -> result_t ---
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/** Decompresses a buffer using a zlib style compression. */
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uncompress_buffer :: proc(
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ctxt: const_context_t,
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in_: rawptr,
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in_bytes: c.size_t,
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out: rawptr,
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out_bytes_avail: c.size_t,
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actual_out: ^c.size_t) -> result_t ---
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/** Apply simple run length encoding and put in the output buffer. */
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rle_compress_buffer :: proc(
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in_bytes: c.size_t,
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in_: rawptr,
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out: rawptr,
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out_bytes_avail: c.size_t) -> c.size_t ---
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/** Decode run length encoding and put in the output buffer. */
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rle_uncompress_buffer :: proc(
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in_bytes: c.size_t,
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max_len: c.size_t,
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in_: rawptr,
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out: rawptr) -> c.size_t ---
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/** Routine to query the lines required per chunk to compress with the
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* specified method.
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*
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* This is only meaningful for scanline encodings, tiled
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* representations have a different interpretation of this.
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*
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* These are constant values, this function returns -1 if the compression
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* type is unknown.
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*/
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compression_lines_per_chunk :: proc(comptype: compression_t) -> c.int ---
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/** Exposes a method to apply compression to a chunk of data.
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*
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* This can be useful for inheriting default behavior of the
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* compression stage of an encoding pipeline, or other helper classes
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* to expose compression.
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*
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* NB: As implied, this function will be used during a normal encode
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* and write operation but can be used directly with a temporary
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* context (i.e. not running the full encode pipeline).
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*/
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compress_chunk :: proc(encode_state: ^encode_pipeline_t) -> result_t ---
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/** Exposes a method to decompress a chunk of data.
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*
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* This can be useful for inheriting default behavior of the
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* uncompression stage of an decoding pipeline, or other helper classes
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* to expose compress / uncompress operations.
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*
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* NB: This function will be used during a normal read and decode
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* operation but can be used directly with a temporary context (i.e.
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* not running the full decode pipeline).
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*/
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uncompress_chunk :: proc(decode_state: ^decode_pipeline_t) -> result_t ---
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} |