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VertexLoaderX64: implement pre-Haswell fallbacks

This commit is contained in:
Tillmann Karras 2015-01-15 00:59:39 +01:00
parent e80b657cf4
commit b27ba3802e
1 changed files with 90 additions and 18 deletions
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108
Source/Core/VideoCommon/VertexLoaderX64.cpp
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@ -15,7 +15,8 @@ static const X64Reg dst_reg = ABI_PARAM2;
static const X64Reg count_reg = ABI_PARAM3;
static const X64Reg scratch1 = RAX;
static const X64Reg scratch2 = R8;
static const X64Reg skipped_reg = R9;
static const X64Reg scratch3 = R9;
static const X64Reg skipped_reg = R10;
VertexLoaderX64::VertexLoaderX64(const TVtxDesc& vtx_desc, const VAT& vtx_att): VertexLoaderBase(vtx_desc, vtx_att)
{
@ -139,8 +140,6 @@ int VertexLoaderX64::ReadVertex(OpArg data, u64 attribute, int format, int count
return load_bytes;
}
// TODO: generate alternative code for pre-BMI2/MOVBE CPUs
void VertexLoaderX64::ReadColor(OpArg data, u64 attribute, int format, int elements)
{
int load_bytes = 0;
@ -163,10 +162,30 @@ void VertexLoaderX64::ReadColor(OpArg data, u64 attribute, int format, int eleme
case FORMAT_16B_565:
// RRRRRGGG GGGBBBBB
// AAAAAAAA BBBBBBBB GGGGGGGG RRRRRRRR
MOVBE(16, scratch1, data);
PDEP(32, scratch1, scratch1, M(&mask_565));
LoadAndSwap(16, scratch1, data);
if (cpu_info.bBMI2)
{
PDEP(32, scratch1, scratch1, M(&mask_565));
MOV(32, R(scratch2), R(scratch1));
}
else
{
MOV(32, R(scratch3), R(scratch1));
SHL(32, R(scratch1), Imm8(16));
AND(32, R(scratch1), Imm32(0xF8000000));
MOV(32, R(scratch2), R(scratch1));
MOV(32, R(scratch1), R(scratch3));
SHL(32, R(scratch1), Imm8(13));
AND(32, R(scratch1), Imm32(0x00FC0000));
OR(32, R(scratch2), R(scratch1));
SHL(32, R(scratch3), Imm8(11));
AND(32, R(scratch3), Imm32(0x0000F800));
OR(32, R(scratch2), R(scratch3));
MOV(32, R(scratch1), R(scratch2));
}
MOV(32, R(scratch2), R(scratch1));
SHR(32, R(scratch1), Imm8(5));
AND(32, R(scratch1), Imm32(0x07000700));
OR(32, R(scratch1), R(scratch2));
@ -176,18 +195,44 @@ void VertexLoaderX64::ReadColor(OpArg data, u64 attribute, int format, int eleme
OR(32, R(scratch1), R(scratch2));
OR(8, R(scratch1), Imm8(0xFF));
MOVBE(32, MDisp(dst_reg, m_dst_ofs), scratch1);
SwapAndStore(32, MDisp(dst_reg, m_dst_ofs), scratch1);
load_bytes = 2;
break;
case FORMAT_16B_4444:
// RRRRGGGG BBBBAAAA
// AAAAAAAA BBBBBBBB GGGGGGGG RRRRRRRR
MOVBE(16, scratch1, data);
PDEP(32, scratch2, scratch1, M(&mask_0f));
PDEP(32, scratch1, scratch1, M(&mask_f0));
LoadAndSwap(16, scratch1, data);
if (cpu_info.bBMI2)
{
PDEP(32, scratch2, scratch1, M(&mask_0f));
PDEP(32, scratch1, scratch1, M(&mask_f0));
}
else
{
MOV(32, R(scratch3), R(scratch1));
SHL(32, R(scratch1), Imm8(12));
AND(32, R(scratch1), Imm32(0x0F000000));
MOV(32, R(scratch2), R(scratch1));
MOV(32, R(scratch1), R(scratch3));
SHL(32, R(scratch1), Imm8(8));
AND(32, R(scratch1), Imm32(0x000F0000));
OR(32, R(scratch2), R(scratch1));
MOV(32, R(scratch1), R(scratch3));
SHL(32, R(scratch1), Imm8(4));
AND(32, R(scratch1), Imm32(0x00000F00));
OR(32, R(scratch2), R(scratch1));
AND(32, R(scratch3), Imm8(0x0F));
OR(32, R(scratch2), R(scratch3));
MOV(32, R(scratch1), R(scratch2));
SHL(32, R(scratch1), Imm8(4));
}
OR(32, R(scratch1), R(scratch2));
MOVBE(32, MDisp(dst_reg, m_dst_ofs), scratch1);
SwapAndStore(32, MDisp(dst_reg, m_dst_ofs), scratch1);
load_bytes = 2;
break;
@ -195,15 +240,41 @@ void VertexLoaderX64::ReadColor(OpArg data, u64 attribute, int format, int eleme
// RRRRRRGG GGGGBBBB BBAAAAAA
// AAAAAAAA BBBBBBBB GGGGGGGG RRRRRRRR
data.offset -= 1;
MOVBE(32, scratch1, data);
PDEP(32, scratch1, scratch1, M(&mask_fc));
LoadAndSwap(32, scratch1, data);
if (cpu_info.bBMI2)
{
PDEP(32, scratch1, scratch1, M(&mask_fc));
MOV(32, R(scratch2), R(scratch1));
}
else
{
MOV(32, R(scratch3), R(scratch1));
SHL(32, R(scratch1), Imm8(8));
AND(32, R(scratch1), Imm32(0xFC000000));
MOV(32, R(scratch2), R(scratch1));
MOV(32, R(scratch2), R(scratch1));
SHR(32, R(scratch2), Imm8(6));
AND(32, R(scratch2), Imm32(0x03030303));
MOV(32, R(scratch1), R(scratch3));
SHL(32, R(scratch1), Imm8(6));
AND(32, R(scratch1), Imm32(0x00FC0000));
OR(32, R(scratch2), R(scratch1));
MOV(32, R(scratch1), R(scratch3));
SHL(32, R(scratch1), Imm8(4));
AND(32, R(scratch1), Imm32(0x0000FC00));
OR(32, R(scratch2), R(scratch1));
SHL(32, R(scratch3), Imm8(2));
AND(32, R(scratch3), Imm32(0x000000FC));
OR(32, R(scratch2), R(scratch3));
MOV(32, R(scratch1), R(scratch2));
}
SHR(32, R(scratch1), Imm8(6));
AND(32, R(scratch1), Imm32(0x03030303));
OR(32, R(scratch1), R(scratch2));
MOVBE(32, MDisp(dst_reg, m_dst_ofs), scratch1);
SwapAndStore(32, MDisp(dst_reg, m_dst_ofs), scratch1);
load_bytes = 3;
break;
}
@ -363,7 +434,8 @@ void VertexLoaderX64::GenerateVertexLoader()
bool VertexLoaderX64::IsInitialized()
{
return true;
// Uses PSHUFB.
return cpu_info.bSSSE3;
}
int VertexLoaderX64::RunVertices(int primitive, int count, DataReader src, DataReader dst)