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RD DXIL Disassembly: decode "dx.op.sample*"

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Example Output

%25 = call %dx.types.ResRet.f32 @dx.op.sample.f32(i32 60, %dx.types.Handle %texDiffuse_texture_2d, %dx.types.Handle %defaultSampler_sampler, float %16, float %17, float undef, float undef, i32 0, i32 0, i32 undef, float undef)

Becomes

_dx.types.ResRet.f32 _25 = texDiffuse.Sample(defaultSampler, _16, _17, Offset = {0, 0});
This commit is contained in:
Jake Turner
2024-05-02 10:07:28 +01:00
parent 91f19a9ed5
commit d71496aabc
1 changed files with 103 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
renderdoc/driver/shaders/dxil/dxil_disassemble.cpp
+103 -3
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@@ -2761,6 +2761,106 @@ void Program::MakeRDDisassemblyString(const DXBC::Reflection *reflection)
showDxFuncName = true;
}
}
else if(showDxFuncName && funcCallName.beginsWith("dx.op.sample") &&
!funcCallName.beginsWith("dx.op.sampleIndex"))
{
// Sample(srv,sampler,coord0,coord1,coord2,coord3,offset0,offset1,offset2,clamp)
// SampleBias(srv,sampler,coord0,coord1,coord2,coord3,offset0,offset1,offset2,bias,clamp)
// SampleLevel(srv,sampler,coord0,coord1,coord2,coord3,offset0,offset1,offset2,LOD)
// SampleGrad(srv,sampler,coord0,coord1,coord2,coord3,offset0,offset1,offset2,ddx0,ddx1,ddx2,ddy0,ddy1,ddy2,clamp)
// SampleCmp(srv,sampler,coord0,coord1,coord2,coord3,offset0,offset1,offset2,compareValue,clamp)
// SampleCmpLevelZero(srv,sampler,coord0,coord1,coord2,coord3,offset0,offset1,offset2,compareValue)
// SampleCmpLevel(srv,sampler,coord0,coord1,coord2,coord3,offset0,offset1,offset2,compareValue,lod)
// SampleCmpGrad(srv,sampler,coord0,coord1,coord2,coord3,offset0,offset1,offset2,compareValue,ddx0,ddx1,ddx2,ddy0,ddy1,ddy2,clamp)
// SampleCmpBias(srv,sampler,coord0,coord1,coord2,coord3,offset0,offset1,offset2,compareValue,bias,clamp)
showDxFuncName = false;
rdcstr handleStr = ArgToString(inst.args[1], false);
if(resHandles.count(handleStr) > 0)
{
uint32_t dxopCode;
RDCASSERT(getival<uint32_t>(inst.args[0], dxopCode));
lineStr += resHandles[handleStr].name;
lineStr += ".";
rdcstr dxFuncSig = funcNameSigs[dxopCode];
int paramStart = dxFuncSig.find('(') + 1;
if(paramStart > 0)
lineStr += dxFuncSig.substr(0, paramStart);
else
lineStr += "UNKNOWN DX FUNCTION";
// sampler is 2
rdcstr samplerStr = ArgToString(inst.args[2], false);
if(resHandles.count(samplerStr) > 0)
samplerStr = resHandles[samplerStr].name;
lineStr += samplerStr;
for(uint32_t a = 3; a < 7; ++a)
{
if(!isUndef(inst.args[a]))
{
lineStr += ", ";
lineStr += ArgToString(inst.args[a], false);
}
}
bool needText = true;
for(uint32_t a = 7; a < 10; ++a)
{
if(!isUndef(inst.args[a]))
{
lineStr += ", ";
if(needText)
{
lineStr += "Offset = {";
needText = false;
}
lineStr += ArgToString(inst.args[a], false);
}
}
if(!needText)
lineStr += "}";
int paramStrCount = (int)dxFuncSig.size();
for(size_t a = 1; a < 10; ++a)
{
if(paramStart < paramStrCount)
{
int paramEnd = dxFuncSig.find(',', paramStart);
if(paramEnd == -1)
paramEnd = paramStrCount;
paramStart = paramEnd + 1;
}
}
for(uint32_t a = 10; a < inst.args.size(); ++a)
{
rdcstr paramNameStr;
if(paramStart < paramStrCount)
{
int paramEnd = dxFuncSig.find(',', paramStart);
if(paramEnd == -1)
paramEnd = paramStrCount - 1;
if(paramEnd > paramStart)
{
rdcstr dxParamName = dxFuncSig.substr(paramStart, paramEnd - paramStart);
paramStart = paramEnd + 1;
paramNameStr = "/*";
paramNameStr += dxParamName;
paramNameStr += "*/ ";
}
}
if(!isUndef(inst.args[a]))
{
lineStr += ", ";
lineStr += paramNameStr;
lineStr += ArgToString(inst.args[a], false);
}
}
lineStr += ")";
}
else
{
showDxFuncName = true;
}
}
else if(funcCallName.beginsWith("llvm.dbg."))
{
}
@@ -2796,7 +2896,7 @@ void Program::MakeRDDisassemblyString(const DXBC::Reflection *reflection)
{
int paramEnd = dxFuncSig.find(',', paramStart);
if(paramEnd == -1)
paramEnd = paramStrCount;
paramEnd = paramStrCount - 1;
if(paramEnd > paramStart)
{
rdcstr dxParamName = dxFuncSig.substr(paramStart, paramEnd - paramStart);
@@ -3054,8 +3154,8 @@ void Program::MakeRDDisassemblyString(const DXBC::Reflection *reflection)
rdcstr ptrStr = ArgToString(inst.args[0], false);
// Try to de-mangle the pointer name
// @"\01?shared_pos@@3PAY0BC@$$CAMA.1dim" -> shared_pos
// Take the string between first alphabetical character and last alphanumeric
// character or "_"
// Take the string between first alphabetical character and last
// alphanumeric character or "_"
start = 0;
int strEnd = (int)ptrStr.size();
while(start < strEnd)