mirror of
https://github.com/open-goal/jak-project
synced 2026-05-24 07:11:15 -04:00
water111
f0ceea8b2e
* wip, taking a break to work on asm stuff first * the goal code for sparticle * mips2c the first sparticle asm function * temp * particle processing no longer crashing * temp * working texture cache for vi1 and hud textures * sprites * cleanup 1 * temp * temp * add zstd library * temp * working * tests * include fix * uncomment * better decomp of sparticle stuff, part 1 * update references
49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
#include <cstring>
|
|
#include <cstdio>
|
|
|
|
#include "compress.h"
|
|
#include "third-party/zstd/lib/zstd.h"
|
|
#include "common/util/assert.h"
|
|
|
|
namespace compression {
|
|
|
|
/*!
|
|
* Compress data with zstd. There is an 8-byte header containing the decompressed data's size.
|
|
*/
|
|
std::vector<u8> compress_zstd(const void* data, size_t size) {
|
|
auto max_compressed = ZSTD_compressBound(size);
|
|
std::vector<u8> result(sizeof(size_t) + max_compressed);
|
|
memcpy(result.data(), &size, sizeof(size_t));
|
|
auto compressed_size =
|
|
ZSTD_compress(result.data() + sizeof(size_t), max_compressed, data, size, 1);
|
|
if (ZSTD_isError(compressed_size)) {
|
|
printf("ZSTD error: %s\n", ZSTD_getErrorName(compressed_size));
|
|
assert(false);
|
|
}
|
|
result.resize(sizeof(size_t) + compressed_size);
|
|
return result;
|
|
}
|
|
|
|
/*!
|
|
* Decompress data with zstd. The first 8-bytes of the data should be a header containing the
|
|
* decompressed data's size.
|
|
*/
|
|
std::vector<u8> decompress_zstd(const void* data, size_t size) {
|
|
assert(size >= sizeof(size_t));
|
|
size_t decompressed_size;
|
|
memcpy(&decompressed_size, data, sizeof(size_t));
|
|
size_t compressed_size = size - sizeof(size_t);
|
|
|
|
std::vector<u8> result(decompressed_size);
|
|
auto decomp_size = ZSTD_decompress(result.data(), decompressed_size,
|
|
(const u8*)data + sizeof(size_t), compressed_size);
|
|
if (ZSTD_isError(decomp_size)) {
|
|
printf("ZSTD error: %s\n", ZSTD_getErrorName(compressed_size));
|
|
assert(false);
|
|
}
|
|
|
|
assert(decomp_size == decompressed_size);
|
|
return result;
|
|
}
|
|
} // namespace compression
|