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Code Issues Releases Activity

vulkan/rangecoder: ifdef out encode and decode chunks

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There's little code sharing between them.
This commit is contained in:
Lynne
2025-10-17 14:12:11 +02:00
parent 3cd678506c
commit 51843adfe5
1 changed files with 16 additions and 10 deletions
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26
libavcodec/vulkan/rangecoder.comp
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@@ -31,6 +31,19 @@ struct RangeCoder {
uint8_t outstanding_byte; uint8_t outstanding_byte;
}; };
void rac_init(out RangeCoder r, u8buf data, uint buf_size)
{
r.bytestream_start = uint64_t(data);
r.bytestream = uint64_t(data);
r.bytestream_end = uint64_t(data) + buf_size;
r.low = 0;
r.range = 0xFF00;
r.outstanding_count = uint16_t(0);
r.outstanding_byte = uint8_t(0xFF);
}
#if !defined(DECODE)
#ifdef FULL_RENORM #ifdef FULL_RENORM
/* Full renorm version that can handle outstanding_byte == 0xFF */ /* Full renorm version that can handle outstanding_byte == 0xFF */
void renorm_encoder(inout RangeCoder c) void renorm_encoder(inout RangeCoder c)
@@ -165,16 +178,7 @@ uint32_t rac_terminate(inout RangeCoder c)
return uint32_t(uint64_t(c.bytestream) - uint64_t(c.bytestream_start)); return uint32_t(uint64_t(c.bytestream) - uint64_t(c.bytestream_start));
} }
void rac_init(out RangeCoder r, u8buf data, uint buf_size) #else
{
r.bytestream_start = uint64_t(data);
r.bytestream = uint64_t(data);
r.bytestream_end = uint64_t(data) + buf_size;
r.low = 0;
r.range = 0xFF00;
r.outstanding_count = uint16_t(0);
r.outstanding_byte = uint8_t(0xFF);
}
/* Decoder */ /* Decoder */
uint overread = 0; uint overread = 0;
@@ -239,3 +243,5 @@ bool get_rac_equi(inout RangeCoder c)
{ {
return get_rac_internal(c, c.range >> 1); return get_rac_internal(c, c.range >> 1);
} }
#endif