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Implement lod opcode (returns LOD that would be used)

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baldurk
2014-09-03 00:49:49 +01:00
parent 1f84ff02b0
commit 00323553f0
1 changed files with 51 additions and 12 deletions
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renderdoc/driver/d3d11/shaders/dxbc_debug.cpp
+51 -12
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@@ -92,6 +92,7 @@ VarType State::OperationType(const OpcodeType &op) const
case OPCODE_BUFINFO:
case OPCODE_SAMPLE_INFO:
case OPCODE_SAMPLE_POS:
case OPCODE_LOD:
case OPCODE_LD:
case OPCODE_LD_MS:
return eVar_Float;
@@ -2697,6 +2698,7 @@ State State::GetNext(GlobalState &global, State quad[4]) const
case OPCODE_GATHER4_C:
case OPCODE_GATHER4_PO:
case OPCODE_GATHER4_PO_C:
case OPCODE_LOD:
{
string sampler = "";
string texture = "";
@@ -2706,7 +2708,8 @@ State State::GetNext(GlobalState &global, State quad[4]) const
if (op.operation == OPCODE_SAMPLE_C ||
op.operation == OPCODE_SAMPLE_C_LZ ||
op.operation == OPCODE_GATHER4_C ||
op.operation == OPCODE_GATHER4_PO_C)
op.operation == OPCODE_GATHER4_PO_C ||
op.operation == OPCODE_LOD)
{
retFmt = DXGI_FORMAT_R32G32B32A32_FLOAT;
funcRet = "float4";
@@ -2715,6 +2718,8 @@ State State::GetNext(GlobalState &global, State quad[4]) const
bool useOffsets = true;
int texdim = 2;
int offsdim = 2; // ddN and offset dimension
DXBC::ResourceDimension resourceDim = DXBC::RESOURCE_DIMENSION_UNKNOWN;
for(size_t i=0; i < s.dxbc->m_Declarations.size(); i++)
{
@@ -2733,6 +2738,8 @@ State State::GetNext(GlobalState &global, State quad[4]) const
decl.declaration == OPCODE_DCL_RESOURCE && decl.operand.type == TYPE_RESOURCE &&
decl.operand.indices.size() == 1 && decl.operand.indices[0] == op.operands[2].indices[0])
{
resourceDim = decl.dim;
uint32_t resIndex = (uint32_t)decl.operand.indices[0].index;
byte *data = &global.srvs[resIndex].data[0];
@@ -2933,6 +2940,8 @@ State State::GetNext(GlobalState &global, State quad[4]) const
decl.operand.type == TYPE_RESOURCE &&
decl.operand.indices.size() == 1 && decl.operand.indices[0] == op.operands[2].indices[0])
{
resourceDim = decl.dim;
if(decl.dim == RESOURCE_DIMENSION_TEXTURE1D)
{
texture = "Texture1D";
@@ -3040,9 +3049,9 @@ State State::GetNext(GlobalState &global, State quad[4]) const
if (retFmt == DXGI_FORMAT_UNKNOWN)
{
funcRet = buf;
funcRet = buf;
retFmt = fmts[decl.resType[0]];
retFmt = fmts[decl.resType[0]];
}
if(decl.dim == RESOURCE_DIMENSION_TEXTURE2DMS || decl.dim == RESOURCE_DIMENSION_TEXTURE2DMSARRAY)
@@ -3057,6 +3066,22 @@ State State::GetNext(GlobalState &global, State quad[4]) const
}
}
// for lod operation, it's only defined for certain resources - otherwise just returns 0
if(op.operation == OPCODE_LOD &&
resourceDim != RESOURCE_DIMENSION_TEXTURE1D &&
resourceDim != RESOURCE_DIMENSION_TEXTURE1DARRAY &&
resourceDim != RESOURCE_DIMENSION_TEXTURE2D &&
resourceDim != RESOURCE_DIMENSION_TEXTURE2DARRAY &&
resourceDim != RESOURCE_DIMENSION_TEXTURE3D &&
resourceDim != RESOURCE_DIMENSION_TEXTURECUBE
)
{
ShaderVariable invalidResult("tex", 0.0f, 0.0f, 0.0f, 0.0f);
s.SetDst(op.operands[0], op, invalidResult);
break;
}
string sampleProgram;
char buf[256] = {0};
@@ -3069,7 +3094,8 @@ State State::GetNext(GlobalState &global, State quad[4]) const
// these ops need DDX/DDY
if(op.operation == OPCODE_SAMPLE ||
op.operation == OPCODE_SAMPLE_B ||
op.operation == OPCODE_SAMPLE_C)
op.operation == OPCODE_SAMPLE_C ||
op.operation == OPCODE_LOD)
{
if(quad == NULL)
{
@@ -3111,7 +3137,8 @@ State State::GetNext(GlobalState &global, State quad[4]) const
op.operation == OPCODE_GATHER4 ||
op.operation == OPCODE_GATHER4_C ||
op.operation == OPCODE_GATHER4_PO ||
op.operation == OPCODE_GATHER4_PO_C)
op.operation == OPCODE_GATHER4_PO_C ||
op.operation == OPCODE_LOD)
{
// all floats
texcoordType = ddxType = ddyType = 0;
@@ -3261,8 +3288,10 @@ State State::GetNext(GlobalState &global, State quad[4]) const
sampleProgram += "t.SampleLevel(s, " + texcoords + ", " + buf + offsets + ")" + swizzle + ";";
sampleProgram += "\n}\n";
}
else if(op.operation == OPCODE_SAMPLE_C)
else if(op.operation == OPCODE_SAMPLE_C || op.operation == OPCODE_LOD)
{
// these operations need derivatives but have no hlsl function to call to provide them, so we fake it in the vertex shader
string uvDim = "1";
uvDim[0] += char(texdim+texdimOffs-1);
@@ -3291,13 +3320,23 @@ State State::GetNext(GlobalState &global, State quad[4]) const
vsProgram += "pos = float4((id == 2) ? 3.0f : -1.0f, (id == 0) ? -3.0f : 1.0f, 0.5, 1.0);\n";
vsProgram += "}";
// comparison value
StringFormat::snprintf(buf, 255, "%f", srcOpers[3].value.f.x);
if(op.operation == OPCODE_SAMPLE_C)
{
// comparison value
StringFormat::snprintf(buf, 255, "%f", srcOpers[3].value.f.x);
sampleProgram = texture + " : register(t0);\n" + sampler + " : register(s0);\n\n";
sampleProgram += funcRet + " main(float4 pos : SV_Position, float" + uvDim + " uv : uvs) : SV_Target0\n{\n";
sampleProgram += "return t.SampleCmpLevelZero(s, uv, " + string(buf) + offsets + ").xxxx;";
sampleProgram += "\n}\n";
sampleProgram = texture + " : register(t0);\n" + sampler + " : register(s0);\n\n";
sampleProgram += funcRet + " main(float4 pos : SV_Position, float" + uvDim + " uv : uvs) : SV_Target0\n{\n";
sampleProgram += "return t.SampleCmpLevelZero(s, uv, " + string(buf) + offsets + ").xxxx;";
sampleProgram += "\n}\n";
}
else if(op.operation == OPCODE_LOD)
{
sampleProgram = texture + " : register(t0);\n" + sampler + " : register(s0);\n\n";
sampleProgram += funcRet + " main(float4 pos : SV_Position, float" + uvDim + " uv : uvs) : SV_Target0\n{\n";
sampleProgram += "return float4(t.CalculateLevelOfDetail(s, uv), t.CalculateLevelOfDetailUnclamped(s, uv), 0.0f, 0.0f);";
sampleProgram += "\n}\n";
}
}
else if(op.operation == OPCODE_SAMPLE_C_LZ)
{