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glslang
Commit 7a26c176 by Rex Xu
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SPV: Implement GLSL interpolation built-in functions.

parent c92e370e
Showing with 190 additions and 3 deletions
SPIRV/GlslangToSpv.cpp
...@@ -822,7 +822,8 @@ bool TGlslangToSpvTraverser::visitUnary(glslang::TVisit /* visit */, glslang::TI ...@@ -822,7 +822,8 @@ bool TGlslangToSpvTraverser::visitUnary(glslang::TVisit /* visit */, glslang::TI
if (node->getOp() == glslang::EOpAtomicCounterIncrement || if (node->getOp() == glslang::EOpAtomicCounterIncrement ||
node->getOp() == glslang::EOpAtomicCounterDecrement || node->getOp() == glslang::EOpAtomicCounterDecrement ||
node->getOp() == glslang::EOpAtomicCounter) node->getOp() == glslang::EOpAtomicCounter ||
node->getOp() == glslang::EOpInterpolateAtCentroid)
operand = builder.accessChainGetLValue(); // Special case l-value operands operand = builder.accessChainGetLValue(); // Special case l-value operands
else else
operand = builder.accessChainLoad(convertGlslangToSpvType(node->getOperand()->getType())); operand = builder.accessChainLoad(convertGlslangToSpvType(node->getOperand()->getType()));
...@@ -1174,6 +1175,11 @@ bool TGlslangToSpvTraverser::visitAggregate(glslang::TVisit visit, glslang::TInt ...@@ -1174,6 +1175,11 @@ bool TGlslangToSpvTraverser::visitAggregate(glslang::TVisit visit, glslang::TInt
if (arg == 1) if (arg == 1)
lvalue = true; lvalue = true;
break; break;
case glslang::EOpInterpolateAtSample:
case glslang::EOpInterpolateAtOffset:
if (arg == 0)
lvalue = true;
break;
case glslang::EOpAtomicAdd: case glslang::EOpAtomicAdd:
case glslang::EOpAtomicMin: case glslang::EOpAtomicMin:
case glslang::EOpAtomicMax: case glslang::EOpAtomicMax:
...@@ -2508,7 +2514,9 @@ spv::Id TGlslangToSpvTraverser::createUnaryOperation(glslang::TOperator op, spv: ...@@ -2508,7 +2514,9 @@ spv::Id TGlslangToSpvTraverser::createUnaryOperation(glslang::TOperator op, spv:
case glslang::EOpFwidthCoarse: case glslang::EOpFwidthCoarse:
unaryOp = spv::OpFwidthCoarse; unaryOp = spv::OpFwidthCoarse;
break; break;
case glslang::EOpInterpolateAtCentroid:
libCall = spv::GLSLstd450InterpolateAtCentroid;
break;
case glslang::EOpAny: case glslang::EOpAny:
unaryOp = spv::OpAny; unaryOp = spv::OpAny;
break; break;
...@@ -2840,7 +2848,12 @@ spv::Id TGlslangToSpvTraverser::createMiscOperation(glslang::TOperator op, spv:: ...@@ -2840,7 +2848,12 @@ spv::Id TGlslangToSpvTraverser::createMiscOperation(glslang::TOperator op, spv::
case glslang::EOpRefract: case glslang::EOpRefract:
libCall = spv::GLSLstd450Refract; libCall = spv::GLSLstd450Refract;
break; break;
case glslang::EOpInterpolateAtSample:
libCall = spv::GLSLstd450InterpolateAtSample;
break;
case glslang::EOpInterpolateAtOffset:
libCall = spv::GLSLstd450InterpolateAtOffset;
break;
case glslang::EOpAddCarry: case glslang::EOpAddCarry:
opCode = spv::OpIAddCarry; opCode = spv::OpIAddCarry;
typeId = builder.makeStructResultType(typeId0, typeId0); typeId = builder.makeStructResultType(typeId0, typeId0);
......
Test/baseResults/spv.interpOps.frag.out 0 → 100644
spv.interpOps.frag
Warning, version 450 is not yet complete; most version-specific features are present, but some are missing.
Linked fragment stage:
// Module Version 10000
// Generated by (magic number): 80001
// Id's are bound by 101
Capability Shader
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint Fragment 4 "main" 13 24 33 41 99
ExecutionMode 4 OriginLowerLeft
Source GLSL 450
Name 4 "main"
Name 9 "f4"
Name 13 "if1"
Name 24 "if2"
Name 33 "if3"
Name 41 "if4"
Name 47 "samp"
Name 73 "offset"
Name 99 "fragColor"
2: TypeVoid
3: TypeFunction 2
6: TypeFloat 32
7: TypeVector 6(float) 4
8: TypePointer Function 7(fvec4)
10: 6(float) Constant 0
11: 7(fvec4) ConstantComposite 10 10 10 10
12: TypePointer Input 6(float)
13(if1): 12(ptr) Variable Input
15: TypeInt 32 0
16: 15(int) Constant 0
17: TypePointer Function 6(float)
22: TypeVector 6(float) 2
23: TypePointer Input 22(fvec2)
24(if2): 23(ptr) Variable Input
31: TypeVector 6(float) 3
32: TypePointer Input 31(fvec3)
33(if3): 32(ptr) Variable Input
40: TypePointer Input 7(fvec4)
41(if4): 40(ptr) Variable Input
45: TypeInt 32 1
46: TypePointer UniformConstant 45(int)
47(samp): 46(ptr) Variable UniformConstant
72: TypePointer UniformConstant 22(fvec2)
73(offset): 72(ptr) Variable UniformConstant
98: TypePointer Output 7(fvec4)
99(fragColor): 98(ptr) Variable Output
4(main): 2 Function None 3
5: Label
9(f4): 8(ptr) Variable Function
Store 9(f4) 11
14: 6(float) ExtInst 1(GLSL.std.450) 76(InterpolateAtCentroid) 13(if1)
18: 17(ptr) AccessChain 9(f4) 16
19: 6(float) Load 18
20: 6(float) FAdd 19 14
21: 17(ptr) AccessChain 9(f4) 16
Store 21 20
25: 22(fvec2) ExtInst 1(GLSL.std.450) 76(InterpolateAtCentroid) 24(if2)
26: 7(fvec4) Load 9(f4)
27: 22(fvec2) VectorShuffle 26 26 0 1
28: 22(fvec2) FAdd 27 25
29: 7(fvec4) Load 9(f4)
30: 7(fvec4) VectorShuffle 29 28 4 5 2 3
Store 9(f4) 30
34: 31(fvec3) ExtInst 1(GLSL.std.450) 76(InterpolateAtCentroid) 33(if3)
35: 7(fvec4) Load 9(f4)
36: 31(fvec3) VectorShuffle 35 35 0 1 2
37: 31(fvec3) FAdd 36 34
38: 7(fvec4) Load 9(f4)
39: 7(fvec4) VectorShuffle 38 37 4 5 6 3
Store 9(f4) 39
42: 7(fvec4) ExtInst 1(GLSL.std.450) 76(InterpolateAtCentroid) 41(if4)
43: 7(fvec4) Load 9(f4)
44: 7(fvec4) FAdd 43 42
Store 9(f4) 44
48: 45(int) Load 47(samp)
49: 6(float) ExtInst 1(GLSL.std.450) 77(InterpolateAtSample) 13(if1) 48
50: 17(ptr) AccessChain 9(f4) 16
51: 6(float) Load 50
52: 6(float) FAdd 51 49
53: 17(ptr) AccessChain 9(f4) 16
Store 53 52
54: 45(int) Load 47(samp)
55: 22(fvec2) ExtInst 1(GLSL.std.450) 77(InterpolateAtSample) 24(if2) 54
56: 7(fvec4) Load 9(f4)
57: 22(fvec2) VectorShuffle 56 56 0 1
58: 22(fvec2) FAdd 57 55
59: 7(fvec4) Load 9(f4)
60: 7(fvec4) VectorShuffle 59 58 4 5 2 3
Store 9(f4) 60
61: 45(int) Load 47(samp)
62: 31(fvec3) ExtInst 1(GLSL.std.450) 77(InterpolateAtSample) 33(if3) 61
63: 7(fvec4) Load 9(f4)
64: 31(fvec3) VectorShuffle 63 63 0 1 2
65: 31(fvec3) FAdd 64 62
66: 7(fvec4) Load 9(f4)
67: 7(fvec4) VectorShuffle 66 65 4 5 6 3
Store 9(f4) 67
68: 45(int) Load 47(samp)
69: 7(fvec4) ExtInst 1(GLSL.std.450) 77(InterpolateAtSample) 41(if4) 68
70: 7(fvec4) Load 9(f4)
71: 7(fvec4) FAdd 70 69
Store 9(f4) 71
74: 22(fvec2) Load 73(offset)
75: 6(float) ExtInst 1(GLSL.std.450) 78(InterpolateAtOffset) 13(if1) 74
76: 17(ptr) AccessChain 9(f4) 16
77: 6(float) Load 76
78: 6(float) FAdd 77 75
79: 17(ptr) AccessChain 9(f4) 16
Store 79 78
80: 22(fvec2) Load 73(offset)
81: 22(fvec2) ExtInst 1(GLSL.std.450) 78(InterpolateAtOffset) 24(if2) 80
82: 7(fvec4) Load 9(f4)
83: 22(fvec2) VectorShuffle 82 82 0 1
84: 22(fvec2) FAdd 83 81
85: 7(fvec4) Load 9(f4)
86: 7(fvec4) VectorShuffle 85 84 4 5 2 3
Store 9(f4) 86
87: 22(fvec2) Load 73(offset)
88: 31(fvec3) ExtInst 1(GLSL.std.450) 78(InterpolateAtOffset) 33(if3) 87
89: 7(fvec4) Load 9(f4)
90: 31(fvec3) VectorShuffle 89 89 0 1 2
91: 31(fvec3) FAdd 90 88
92: 7(fvec4) Load 9(f4)
93: 7(fvec4) VectorShuffle 92 91 4 5 6 3
Store 9(f4) 93
94: 22(fvec2) Load 73(offset)
95: 7(fvec4) ExtInst 1(GLSL.std.450) 78(InterpolateAtOffset) 41(if4) 94
96: 7(fvec4) Load 9(f4)
97: 7(fvec4) FAdd 96 95
Store 9(f4) 97
100: 7(fvec4) Load 9(f4)
Store 99(fragColor) 100
Return
FunctionEnd
Test/spv.interpOps.frag 0 → 100644
#version 450
in float if1;
in vec2 if2;
in vec3 if3;
in vec4 if4;
uniform int samp;
uniform vec2 offset;
out vec4 fragColor;
void main()
{
vec4 f4 = vec4(0.0);
f4.x += interpolateAtCentroid(if1);
f4.xy += interpolateAtCentroid(if2);
f4.xyz += interpolateAtCentroid(if3);
f4 += interpolateAtCentroid(if4);
f4.x += interpolateAtSample(if1, samp);
f4.xy += interpolateAtSample(if2, samp);
f4.xyz += interpolateAtSample(if3, samp);
f4 += interpolateAtSample(if4, samp);
f4.x += interpolateAtOffset(if1, offset);
f4.xy += interpolateAtOffset(if2, offset);
f4.xyz += interpolateAtOffset(if3, offset);
f4 += interpolateAtOffset(if4, offset);
fragColor = f4;
}
Test/test-spirv-list
...@@ -45,6 +45,7 @@ spv.forLoop.frag ...@@ -45,6 +45,7 @@ spv.forLoop.frag
spv.forwardFun.frag spv.forwardFun.frag
spv.functionCall.frag spv.functionCall.frag
spv.functionSemantics.frag spv.functionSemantics.frag
spv.interpOps.frag
spv.length.frag spv.length.frag
spv.localAggregates.frag spv.localAggregates.frag
spv.loops.frag spv.loops.frag
......
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