mirror of
https://github.com/holub/mame
synced 2025-06-08 05:44:09 +03:00
111 lines
2.0 KiB
C++
111 lines
2.0 KiB
C++
// BranchMisc.cpp
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#include "StdAfx.h"
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#include "../../../C/CpuArch.h"
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#include "../Common/StreamUtils.h"
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#include "BranchMisc.h"
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namespace NCompress {
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namespace NBranch {
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Z7_COM7F_IMF(CCoder::Init())
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{
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_pc = 0;
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return S_OK;
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}
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Z7_COM7F_IMF2(UInt32, CCoder::Filter(Byte *data, UInt32 size))
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{
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const UInt32 processed = (UInt32)(size_t)(BraFunc(data, size, _pc) - data);
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_pc += processed;
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return processed;
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}
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namespace NArm64 {
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#ifndef Z7_EXTRACT_ONLY
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Z7_COM7F_IMF(CEncoder::Init())
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{
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_pc = _pc_Init;
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return S_OK;
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}
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Z7_COM7F_IMF2(UInt32, CEncoder::Filter(Byte *data, UInt32 size))
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{
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const UInt32 processed = (UInt32)(size_t)(Z7_BRANCH_CONV_ENC(ARM64)(data, size, _pc) - data);
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_pc += processed;
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return processed;
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}
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Z7_COM7F_IMF(CEncoder::SetCoderProperties(const PROPID *propIDs, const PROPVARIANT *props, UInt32 numProps))
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{
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UInt32 pc = 0;
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for (UInt32 i = 0; i < numProps; i++)
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{
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const PROPID propID = propIDs[i];
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if (propID == NCoderPropID::kDefaultProp ||
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propID == NCoderPropID::kBranchOffset)
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{
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const PROPVARIANT &prop = props[i];
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if (prop.vt != VT_UI4)
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return E_INVALIDARG;
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pc = prop.ulVal;
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if ((pc & 3) != 0)
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return E_INVALIDARG;
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}
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}
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_pc_Init = pc;
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return S_OK;
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}
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Z7_COM7F_IMF(CEncoder::WriteCoderProperties(ISequentialOutStream *outStream))
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{
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if (_pc_Init == 0)
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return S_OK;
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Byte buf[4];
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SetUi32(buf, _pc_Init)
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return WriteStream(outStream, buf, 4);
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}
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#endif
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Z7_COM7F_IMF(CDecoder::Init())
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{
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_pc = _pc_Init;
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return S_OK;
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}
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Z7_COM7F_IMF2(UInt32, CDecoder::Filter(Byte *data, UInt32 size))
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{
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const UInt32 processed = (UInt32)(size_t)(Z7_BRANCH_CONV_DEC(ARM64)(data, size, _pc) - data);
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_pc += processed;
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return processed;
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}
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Z7_COM7F_IMF(CDecoder::SetDecoderProperties2(const Byte *props, UInt32 size))
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{
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UInt32 val = 0;
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if (size != 0)
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{
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if (size != 4)
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return E_NOTIMPL;
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val = GetUi32(props);
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if ((val & 3) != 0)
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return E_NOTIMPL;
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}
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_pc_Init = val;
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return S_OK;
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}
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}
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}}
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