This PR emulates per control point inputs to patch constant functions.
Without either an extension to look across SIMD lanes or a dedicated
stage, the emulation must use separate invocations of the wrapped
entry point to obtain the per control point values. This is provided
since shaders are wanting this functionality now, but such an extension
is not yet available.
Entry point arguments qualified as an invocation ID are replaced by the
current control point number when calling the wrapped entry point. There
is no particular optimization for the case of the entry point not having
such an input but the PCF still accepting ctrl pt frequency data. It'll
work, but anyway makes no so much sense.
The wrapped entry point must return the per control point data by value.
At this time it is not supported as an output parameter.
0:? 'pid' ( in uint PrimitiveID)
0:? Sequence
0:? move second child to first child ( temp float)
-0:? direct index ( out float TessLevelOuter)
-0:? '@patchConstantOutput_edges' ( out 2-element array of float TessLevelOuter)
+0:? direct index ( patch out float TessLevelOuter)
+0:? '@patchConstantOutput_edges' ( patch out 2-element array of float TessLevelOuter)
0:? Constant:
0:? 0 (const int)
0:? direct index ( temp float)
0:? Constant:
0:? 0 (const int)
0:? move second child to first child ( temp float)
-0:? direct index ( out float TessLevelOuter)
-0:? '@patchConstantOutput_edges' ( out 2-element array of float TessLevelOuter)
+0:? direct index ( patch out float TessLevelOuter)
+0:? '@patchConstantOutput_edges' ( patch out 2-element array of float TessLevelOuter)
0:? Constant:
0:? 1 (const int)
0:? direct index ( temp float)
0:? 'ip' (layout( location=0) in 4-element array of structure{ temp 3-component vector of float cpoint})
0:? 'm_cpid' ( in uint InvocationID)
0:? 'pid' ( in uint PrimitiveID)
-0:? '@patchConstantOutput_edges' ( out 2-element array of float TessLevelOuter)
+0:? '@patchConstantOutput' (layout( location=1) patch out structure{})
+0:? '@patchConstantOutput_edges' ( patch out 2-element array of float TessLevelOuter)
Linked tessellation control stage:
0:? 'pid' ( in uint PrimitiveID)
0:? Sequence
0:? move second child to first child ( temp float)
-0:? direct index ( out float TessLevelOuter)
-0:? '@patchConstantOutput_edges' ( out 2-element array of float TessLevelOuter)
+0:? direct index ( patch out float TessLevelOuter)
+0:? '@patchConstantOutput_edges' ( patch out 2-element array of float TessLevelOuter)
0:? Constant:
0:? 0 (const int)
0:? direct index ( temp float)
0:? Constant:
0:? 0 (const int)
0:? move second child to first child ( temp float)
-0:? direct index ( out float TessLevelOuter)
-0:? '@patchConstantOutput_edges' ( out 2-element array of float TessLevelOuter)
+0:? direct index ( patch out float TessLevelOuter)
+0:? '@patchConstantOutput_edges' ( patch out 2-element array of float TessLevelOuter)
0:? Constant:
0:? 1 (const int)
0:? direct index ( temp float)
0:? 'ip' (layout( location=0) in 4-element array of structure{ temp 3-component vector of float cpoint})
0:? 'm_cpid' ( in uint InvocationID)
0:? 'pid' ( in uint PrimitiveID)
-0:? '@patchConstantOutput_edges' ( out 2-element array of float TessLevelOuter)
+0:? '@patchConstantOutput' (layout( location=1) patch out structure{})
+0:? '@patchConstantOutput_edges' ( patch out 2-element array of float TessLevelOuter)
// Module Version 10000
// Generated by (magic number): 80001
-// Id's are bound by 85
+// Id's are bound by 88
Capability Tessellation
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
- EntryPoint TessellationControl 4 "main" 40 44 47 62 67
+ EntryPoint TessellationControl 4 "main" 40 44 47 62 67 87
ExecutionMode 4 OutputVertices 4
Name 4 "main"
Name 8 "VS_OUT"
Name 63 "param"
Name 67 "@patchConstantOutput_edges"
Name 77 "output"
+ Name 85 "HS_CONSTANT_OUT"
+ Name 87 "@patchConstantOutput"
Decorate 40(ip) Location 0
Decorate 44(m_cpid) BuiltIn InvocationId
Decorate 47(@entryPointOutput) Location 0
Decorate 62(pid) BuiltIn PrimitiveId
+ Decorate 67(@patchConstantOutput_edges) Patch
Decorate 67(@patchConstantOutput_edges) BuiltIn TessLevelOuter
+ Decorate 87(@patchConstantOutput) Patch
+ Decorate 87(@patchConstantOutput) Location 1
2: TypeVoid
3: TypeFunction 2
6: TypeFloat 32
73: 29(int) Constant 1
78: 6(float) Constant 1073741824
80: 6(float) Constant 1090519040
+85(HS_CONSTANT_OUT): TypeStruct
+ 86: TypePointer Output 85(HS_CONSTANT_OUT)
+87(@patchConstantOutput): 86(ptr) Variable Output
4(main): 2 Function None 3
5: Label
38(ip): 12(ptr) Variable Function
0:? 'pos' ( in 4-component vector of float Position)
0:? Sequence
0:? move second child to first child ( temp float)
-0:? direct index ( out float TessLevelOuter)
-0:? '@patchConstantOutput_edges' ( out 2-element array of float TessLevelOuter)
+0:? direct index ( patch out float TessLevelOuter)
+0:? '@patchConstantOutput_edges' ( patch out 2-element array of float TessLevelOuter)
0:? Constant:
0:? 0 (const int)
0:? direct index ( temp float)
0:? Constant:
0:? 0 (const int)
0:? move second child to first child ( temp float)
-0:? direct index ( out float TessLevelOuter)
-0:? '@patchConstantOutput_edges' ( out 2-element array of float TessLevelOuter)
+0:? direct index ( patch out float TessLevelOuter)
+0:? '@patchConstantOutput_edges' ( patch out 2-element array of float TessLevelOuter)
0:? Constant:
0:? 1 (const int)
0:? direct index ( temp float)
0:? 'pid' ( in uint PrimitiveID)
0:? 'pos' ( in 4-component vector of float Position)
0:? 'InvocationId' ( in uint InvocationID)
-0:? '@patchConstantOutput_edges' ( out 2-element array of float TessLevelOuter)
+0:? '@patchConstantOutput' (layout( location=1) patch out structure{})
+0:? '@patchConstantOutput_edges' ( patch out 2-element array of float TessLevelOuter)
Linked tessellation control stage:
0:? 'pos' ( in 4-component vector of float Position)
0:? Sequence
0:? move second child to first child ( temp float)
-0:? direct index ( out float TessLevelOuter)
-0:? '@patchConstantOutput_edges' ( out 2-element array of float TessLevelOuter)
+0:? direct index ( patch out float TessLevelOuter)
+0:? '@patchConstantOutput_edges' ( patch out 2-element array of float TessLevelOuter)
0:? Constant:
0:? 0 (const int)
0:? direct index ( temp float)
0:? Constant:
0:? 0 (const int)
0:? move second child to first child ( temp float)
-0:? direct index ( out float TessLevelOuter)
-0:? '@patchConstantOutput_edges' ( out 2-element array of float TessLevelOuter)
+0:? direct index ( patch out float TessLevelOuter)
+0:? '@patchConstantOutput_edges' ( patch out 2-element array of float TessLevelOuter)
0:? Constant:
0:? 1 (const int)
0:? direct index ( temp float)
0:? 'pid' ( in uint PrimitiveID)
0:? 'pos' ( in 4-component vector of float Position)
0:? 'InvocationId' ( in uint InvocationID)
-0:? '@patchConstantOutput_edges' ( out 2-element array of float TessLevelOuter)
+0:? '@patchConstantOutput' (layout( location=1) patch out structure{})
+0:? '@patchConstantOutput_edges' ( patch out 2-element array of float TessLevelOuter)
// Module Version 10000
// Generated by (magic number): 80001
-// Id's are bound by 87
+// Id's are bound by 90
Capability Tessellation
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
- EntryPoint TessellationControl 4 "main" 42 45 52 60 62 69
+ EntryPoint TessellationControl 4 "main" 42 45 52 60 62 69 89
ExecutionMode 4 OutputVertices 4
Name 4 "main"
Name 8 "VS_OUT"
Name 65 "param"
Name 69 "@patchConstantOutput_edges"
Name 79 "output"
+ Name 87 "HS_CONSTANT_OUT"
+ Name 89 "@patchConstantOutput"
Decorate 42(ip) Location 0
Decorate 45(@entryPointOutput) Location 0
Decorate 52(InvocationId) BuiltIn InvocationId
Decorate 60(pid) BuiltIn PrimitiveId
Decorate 62(pos) BuiltIn Position
+ Decorate 69(@patchConstantOutput_edges) Patch
Decorate 69(@patchConstantOutput_edges) BuiltIn TessLevelOuter
+ Decorate 89(@patchConstantOutput) Patch
+ Decorate 89(@patchConstantOutput) Location 1
2: TypeVoid
3: TypeFunction 2
6: TypeFloat 32
75: 31(int) Constant 1
80: 6(float) Constant 1073741824
82: 6(float) Constant 1090519040
+87(HS_CONSTANT_OUT): TypeStruct
+ 88: TypePointer Output 87(HS_CONSTANT_OUT)
+89(@patchConstantOutput): 88(ptr) Variable Output
4(main): 2 Function None 3
5: Label
40(ip): 12(ptr) Variable Function
--- /dev/null
+hlsl.hull.ctrlpt-1.tesc
+Shader version: 450
+vertices = 3
+0:? Sequence
+0:27 Function Definition: @main(struct-hs_in_t-vf31[3];u1; ( temp structure{ temp 3-component vector of float val})
+0:27 Function Parameters:
+0:27 'i' ( in 3-element array of structure{ temp 3-component vector of float val})
+0:27 'cpid' ( in uint)
+0:? Sequence
+0:29 move second child to first child ( temp 3-component vector of float)
+0:29 val: direct index for structure ( temp 3-component vector of float)
+0:29 'o' ( temp structure{ temp 3-component vector of float val})
+0:29 Constant:
+0:29 0 (const int)
+0:29 Construct vec3 ( temp 3-component vector of float)
+0:29 Convert uint to float ( temp float)
+0:29 'cpid' ( in uint)
+0:30 Branch: Return with expression
+0:30 'o' ( temp structure{ temp 3-component vector of float val})
+0:27 Function Definition: main( ( temp void)
+0:27 Function Parameters:
+0:? Sequence
+0:27 move second child to first child ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? 'i' ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? 'i' (layout( location=0) in 3-element array of structure{ temp 3-component vector of float val})
+0:27 move second child to first child ( temp uint)
+0:? 'cpid' ( temp uint)
+0:? 'cpid' ( in uint InvocationID)
+0:27 move second child to first child ( temp structure{ temp 3-component vector of float val})
+0:? '@entryPointOutput' (layout( location=0) out structure{ temp 3-component vector of float val})
+0:27 Function Call: @main(struct-hs_in_t-vf31[3];u1; ( temp structure{ temp 3-component vector of float val})
+0:? 'i' ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? 'cpid' ( temp uint)
+0:? Barrier ( temp void)
+0:? Test condition and select ( temp void)
+0:? Condition
+0:? Compare Equal ( temp bool)
+0:? 'cpid' ( in uint InvocationID)
+0:? Constant:
+0:? 0 (const int)
+0:? true case
+0:? Sequence
+0:? move second child to first child ( temp structure{ temp 3-component vector of float val})
+0:? direct index ( temp structure{ temp 3-component vector of float val})
+0:? 'pcf_out' ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? Constant:
+0:? 0 (const int)
+0:? Function Call: @main(struct-hs_in_t-vf31[3];u1; ( temp structure{ temp 3-component vector of float val})
+0:? 'i' ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? Constant:
+0:? 0 (const uint)
+0:? move second child to first child ( temp structure{ temp 3-component vector of float val})
+0:? direct index ( temp structure{ temp 3-component vector of float val})
+0:? 'pcf_out' ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? Constant:
+0:? 1 (const int)
+0:? Function Call: @main(struct-hs_in_t-vf31[3];u1; ( temp structure{ temp 3-component vector of float val})
+0:? 'i' ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? Constant:
+0:? 1 (const uint)
+0:? move second child to first child ( temp structure{ temp 3-component vector of float val})
+0:? direct index ( temp structure{ temp 3-component vector of float val})
+0:? 'pcf_out' ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? Constant:
+0:? 2 (const int)
+0:? Function Call: @main(struct-hs_in_t-vf31[3];u1; ( temp structure{ temp 3-component vector of float val})
+0:? 'i' ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? Constant:
+0:? 2 (const uint)
+0:? move second child to first child ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:? '@patchConstantResult' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:? Function Call: PCF(struct-hs_out_t-vf31[3]; ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:? 'pcf_out' ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? Sequence
+0:? move second child to first child ( temp float)
+0:? direct index ( patch out float TessLevelOuter)
+0:? '@patchConstantOutput_tfactor' ( patch out 3-element array of float TessLevelOuter)
+0:? Constant:
+0:? 0 (const int)
+0:? direct index ( temp float)
+0:? tfactor: direct index for structure ( temp 3-element array of float)
+0:? '@patchConstantResult' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:? Constant:
+0:? 0 (const int)
+0:? Constant:
+0:? 0 (const int)
+0:? move second child to first child ( temp float)
+0:? direct index ( patch out float TessLevelOuter)
+0:? '@patchConstantOutput_tfactor' ( patch out 3-element array of float TessLevelOuter)
+0:? Constant:
+0:? 1 (const int)
+0:? direct index ( temp float)
+0:? tfactor: direct index for structure ( temp 3-element array of float)
+0:? '@patchConstantResult' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:? Constant:
+0:? 0 (const int)
+0:? Constant:
+0:? 1 (const int)
+0:? move second child to first child ( temp float)
+0:? direct index ( patch out float TessLevelOuter)
+0:? '@patchConstantOutput_tfactor' ( patch out 3-element array of float TessLevelOuter)
+0:? Constant:
+0:? 2 (const int)
+0:? direct index ( temp float)
+0:? tfactor: direct index for structure ( temp 3-element array of float)
+0:? '@patchConstantResult' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:? Constant:
+0:? 0 (const int)
+0:? Constant:
+0:? 2 (const int)
+0:? move second child to first child ( temp float)
+0:? '@patchConstantOutput_flInFactor' ( patch out float TessLevelInner)
+0:? flInFactor: direct index for structure ( temp float)
+0:? '@patchConstantResult' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:? Constant:
+0:? 1 (const int)
+0:34 Function Definition: PCF(struct-hs_out_t-vf31[3]; ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:34 Function Parameters:
+0:34 'pcf_out' ( const (read only) 3-element array of structure{ temp 3-component vector of float val})
+0:? Sequence
+0:37 move second child to first child ( temp float)
+0:37 direct index ( temp float)
+0:37 tfactor: direct index for structure ( temp 3-element array of float)
+0:37 'o' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:37 Constant:
+0:37 0 (const int)
+0:37 Constant:
+0:37 0 (const int)
+0:37 direct index ( temp float)
+0:37 val: direct index for structure ( temp 3-component vector of float)
+0:37 direct index ( temp structure{ temp 3-component vector of float val})
+0:37 'pcf_out' ( const (read only) 3-element array of structure{ temp 3-component vector of float val})
+0:37 Constant:
+0:37 0 (const int)
+0:37 Constant:
+0:37 0 (const int)
+0:37 Constant:
+0:37 0 (const int)
+0:38 move second child to first child ( temp float)
+0:38 direct index ( temp float)
+0:38 tfactor: direct index for structure ( temp 3-element array of float)
+0:38 'o' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:38 Constant:
+0:38 0 (const int)
+0:38 Constant:
+0:38 1 (const int)
+0:38 direct index ( temp float)
+0:38 val: direct index for structure ( temp 3-component vector of float)
+0:38 direct index ( temp structure{ temp 3-component vector of float val})
+0:38 'pcf_out' ( const (read only) 3-element array of structure{ temp 3-component vector of float val})
+0:38 Constant:
+0:38 1 (const int)
+0:38 Constant:
+0:38 0 (const int)
+0:38 Constant:
+0:38 0 (const int)
+0:39 move second child to first child ( temp float)
+0:39 direct index ( temp float)
+0:39 tfactor: direct index for structure ( temp 3-element array of float)
+0:39 'o' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:39 Constant:
+0:39 0 (const int)
+0:39 Constant:
+0:39 2 (const int)
+0:39 direct index ( temp float)
+0:39 val: direct index for structure ( temp 3-component vector of float)
+0:39 direct index ( temp structure{ temp 3-component vector of float val})
+0:39 'pcf_out' ( const (read only) 3-element array of structure{ temp 3-component vector of float val})
+0:39 Constant:
+0:39 2 (const int)
+0:39 Constant:
+0:39 0 (const int)
+0:39 Constant:
+0:39 0 (const int)
+0:40 move second child to first child ( temp float)
+0:40 flInFactor: direct index for structure ( temp float)
+0:40 'o' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:40 Constant:
+0:40 1 (const int)
+0:40 Constant:
+0:40 4.000000
+0:42 Branch: Return with expression
+0:42 'o' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:? Linker Objects
+0:? '@entryPointOutput' (layout( location=0) out structure{ temp 3-component vector of float val})
+0:? 'i' (layout( location=0) in 3-element array of structure{ temp 3-component vector of float val})
+0:? 'cpid' ( in uint InvocationID)
+0:? '@patchConstantOutput' (layout( location=1) patch out structure{})
+0:? '@patchConstantOutput_tfactor' ( patch out 3-element array of float TessLevelOuter)
+0:? '@patchConstantOutput_flInFactor' ( patch out float TessLevelInner)
+
+
+Linked tessellation control stage:
+
+
+Shader version: 450
+vertices = 3
+0:? Sequence
+0:27 Function Definition: @main(struct-hs_in_t-vf31[3];u1; ( temp structure{ temp 3-component vector of float val})
+0:27 Function Parameters:
+0:27 'i' ( in 3-element array of structure{ temp 3-component vector of float val})
+0:27 'cpid' ( in uint)
+0:? Sequence
+0:29 move second child to first child ( temp 3-component vector of float)
+0:29 val: direct index for structure ( temp 3-component vector of float)
+0:29 'o' ( temp structure{ temp 3-component vector of float val})
+0:29 Constant:
+0:29 0 (const int)
+0:29 Construct vec3 ( temp 3-component vector of float)
+0:29 Convert uint to float ( temp float)
+0:29 'cpid' ( in uint)
+0:30 Branch: Return with expression
+0:30 'o' ( temp structure{ temp 3-component vector of float val})
+0:27 Function Definition: main( ( temp void)
+0:27 Function Parameters:
+0:? Sequence
+0:27 move second child to first child ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? 'i' ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? 'i' (layout( location=0) in 3-element array of structure{ temp 3-component vector of float val})
+0:27 move second child to first child ( temp uint)
+0:? 'cpid' ( temp uint)
+0:? 'cpid' ( in uint InvocationID)
+0:27 move second child to first child ( temp structure{ temp 3-component vector of float val})
+0:? '@entryPointOutput' (layout( location=0) out structure{ temp 3-component vector of float val})
+0:27 Function Call: @main(struct-hs_in_t-vf31[3];u1; ( temp structure{ temp 3-component vector of float val})
+0:? 'i' ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? 'cpid' ( temp uint)
+0:? Barrier ( temp void)
+0:? Test condition and select ( temp void)
+0:? Condition
+0:? Compare Equal ( temp bool)
+0:? 'cpid' ( in uint InvocationID)
+0:? Constant:
+0:? 0 (const int)
+0:? true case
+0:? Sequence
+0:? move second child to first child ( temp structure{ temp 3-component vector of float val})
+0:? direct index ( temp structure{ temp 3-component vector of float val})
+0:? 'pcf_out' ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? Constant:
+0:? 0 (const int)
+0:? Function Call: @main(struct-hs_in_t-vf31[3];u1; ( temp structure{ temp 3-component vector of float val})
+0:? 'i' ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? Constant:
+0:? 0 (const uint)
+0:? move second child to first child ( temp structure{ temp 3-component vector of float val})
+0:? direct index ( temp structure{ temp 3-component vector of float val})
+0:? 'pcf_out' ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? Constant:
+0:? 1 (const int)
+0:? Function Call: @main(struct-hs_in_t-vf31[3];u1; ( temp structure{ temp 3-component vector of float val})
+0:? 'i' ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? Constant:
+0:? 1 (const uint)
+0:? move second child to first child ( temp structure{ temp 3-component vector of float val})
+0:? direct index ( temp structure{ temp 3-component vector of float val})
+0:? 'pcf_out' ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? Constant:
+0:? 2 (const int)
+0:? Function Call: @main(struct-hs_in_t-vf31[3];u1; ( temp structure{ temp 3-component vector of float val})
+0:? 'i' ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? Constant:
+0:? 2 (const uint)
+0:? move second child to first child ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:? '@patchConstantResult' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:? Function Call: PCF(struct-hs_out_t-vf31[3]; ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:? 'pcf_out' ( temp 3-element array of structure{ temp 3-component vector of float val})
+0:? Sequence
+0:? move second child to first child ( temp float)
+0:? direct index ( patch out float TessLevelOuter)
+0:? '@patchConstantOutput_tfactor' ( patch out 3-element array of float TessLevelOuter)
+0:? Constant:
+0:? 0 (const int)
+0:? direct index ( temp float)
+0:? tfactor: direct index for structure ( temp 3-element array of float)
+0:? '@patchConstantResult' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:? Constant:
+0:? 0 (const int)
+0:? Constant:
+0:? 0 (const int)
+0:? move second child to first child ( temp float)
+0:? direct index ( patch out float TessLevelOuter)
+0:? '@patchConstantOutput_tfactor' ( patch out 3-element array of float TessLevelOuter)
+0:? Constant:
+0:? 1 (const int)
+0:? direct index ( temp float)
+0:? tfactor: direct index for structure ( temp 3-element array of float)
+0:? '@patchConstantResult' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:? Constant:
+0:? 0 (const int)
+0:? Constant:
+0:? 1 (const int)
+0:? move second child to first child ( temp float)
+0:? direct index ( patch out float TessLevelOuter)
+0:? '@patchConstantOutput_tfactor' ( patch out 3-element array of float TessLevelOuter)
+0:? Constant:
+0:? 2 (const int)
+0:? direct index ( temp float)
+0:? tfactor: direct index for structure ( temp 3-element array of float)
+0:? '@patchConstantResult' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:? Constant:
+0:? 0 (const int)
+0:? Constant:
+0:? 2 (const int)
+0:? move second child to first child ( temp float)
+0:? '@patchConstantOutput_flInFactor' ( patch out float TessLevelInner)
+0:? flInFactor: direct index for structure ( temp float)
+0:? '@patchConstantResult' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:? Constant:
+0:? 1 (const int)
+0:34 Function Definition: PCF(struct-hs_out_t-vf31[3]; ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:34 Function Parameters:
+0:34 'pcf_out' ( const (read only) 3-element array of structure{ temp 3-component vector of float val})
+0:? Sequence
+0:37 move second child to first child ( temp float)
+0:37 direct index ( temp float)
+0:37 tfactor: direct index for structure ( temp 3-element array of float)
+0:37 'o' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:37 Constant:
+0:37 0 (const int)
+0:37 Constant:
+0:37 0 (const int)
+0:37 direct index ( temp float)
+0:37 val: direct index for structure ( temp 3-component vector of float)
+0:37 direct index ( temp structure{ temp 3-component vector of float val})
+0:37 'pcf_out' ( const (read only) 3-element array of structure{ temp 3-component vector of float val})
+0:37 Constant:
+0:37 0 (const int)
+0:37 Constant:
+0:37 0 (const int)
+0:37 Constant:
+0:37 0 (const int)
+0:38 move second child to first child ( temp float)
+0:38 direct index ( temp float)
+0:38 tfactor: direct index for structure ( temp 3-element array of float)
+0:38 'o' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:38 Constant:
+0:38 0 (const int)
+0:38 Constant:
+0:38 1 (const int)
+0:38 direct index ( temp float)
+0:38 val: direct index for structure ( temp 3-component vector of float)
+0:38 direct index ( temp structure{ temp 3-component vector of float val})
+0:38 'pcf_out' ( const (read only) 3-element array of structure{ temp 3-component vector of float val})
+0:38 Constant:
+0:38 1 (const int)
+0:38 Constant:
+0:38 0 (const int)
+0:38 Constant:
+0:38 0 (const int)
+0:39 move second child to first child ( temp float)
+0:39 direct index ( temp float)
+0:39 tfactor: direct index for structure ( temp 3-element array of float)
+0:39 'o' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:39 Constant:
+0:39 0 (const int)
+0:39 Constant:
+0:39 2 (const int)
+0:39 direct index ( temp float)
+0:39 val: direct index for structure ( temp 3-component vector of float)
+0:39 direct index ( temp structure{ temp 3-component vector of float val})
+0:39 'pcf_out' ( const (read only) 3-element array of structure{ temp 3-component vector of float val})
+0:39 Constant:
+0:39 2 (const int)
+0:39 Constant:
+0:39 0 (const int)
+0:39 Constant:
+0:39 0 (const int)
+0:40 move second child to first child ( temp float)
+0:40 flInFactor: direct index for structure ( temp float)
+0:40 'o' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:40 Constant:
+0:40 1 (const int)
+0:40 Constant:
+0:40 4.000000
+0:42 Branch: Return with expression
+0:42 'o' ( temp structure{ temp 3-element array of float tfactor, temp float flInFactor})
+0:? Linker Objects
+0:? '@entryPointOutput' (layout( location=0) out structure{ temp 3-component vector of float val})
+0:? 'i' (layout( location=0) in 3-element array of structure{ temp 3-component vector of float val})
+0:? 'cpid' ( in uint InvocationID)
+0:? '@patchConstantOutput' (layout( location=1) patch out structure{})
+0:? '@patchConstantOutput_tfactor' ( patch out 3-element array of float TessLevelOuter)
+0:? '@patchConstantOutput_flInFactor' ( patch out float TessLevelInner)
+
+// Module Version 10000
+// Generated by (magic number): 80001
+// Id's are bound by 119
+
+ Capability Tessellation
+ 1: ExtInstImport "GLSL.std.450"
+ MemoryModel Logical GLSL450
+ EntryPoint TessellationControl 4 "main" 41 45 48 89 101 118
+ ExecutionMode 4 OutputVertices 3
+ Name 4 "main"
+ Name 8 "hs_in_t"
+ MemberName 8(hs_in_t) 0 "val"
+ Name 14 "hs_out_t"
+ MemberName 14(hs_out_t) 0 "val"
+ Name 18 "@main(struct-hs_in_t-vf31[3];u1;"
+ Name 16 "i"
+ Name 17 "cpid"
+ Name 22 "hs_pcf_t"
+ MemberName 22(hs_pcf_t) 0 "tfactor"
+ MemberName 22(hs_pcf_t) 1 "flInFactor"
+ Name 25 "PCF(struct-hs_out_t-vf31[3];"
+ Name 24 "pcf_out"
+ Name 28 "o"
+ Name 39 "i"
+ Name 41 "i"
+ Name 43 "cpid"
+ Name 45 "cpid"
+ Name 48 "@entryPointOutput"
+ Name 49 "param"
+ Name 51 "param"
+ Name 63 "pcf_out"
+ Name 64 "i"
+ Name 65 "param"
+ Name 67 "param"
+ Name 71 "i"
+ Name 72 "param"
+ Name 74 "param"
+ Name 78 "i"
+ Name 79 "param"
+ Name 81 "param"
+ Name 85 "@patchConstantResult"
+ Name 89 "@patchConstantOutput_tfactor"
+ Name 101 "@patchConstantOutput_flInFactor"
+ Name 104 "o"
+ Name 116 "hs_pcf_t"
+ Name 118 "@patchConstantOutput"
+ Decorate 41(i) Location 0
+ Decorate 45(cpid) BuiltIn InvocationId
+ Decorate 48(@entryPointOutput) Location 0
+ Decorate 89(@patchConstantOutput_tfactor) Patch
+ Decorate 89(@patchConstantOutput_tfactor) BuiltIn TessLevelOuter
+ Decorate 101(@patchConstantOutput_flInFactor) Patch
+ Decorate 101(@patchConstantOutput_flInFactor) BuiltIn TessLevelInner
+ Decorate 118(@patchConstantOutput) Patch
+ Decorate 118(@patchConstantOutput) Location 1
+ 2: TypeVoid
+ 3: TypeFunction 2
+ 6: TypeFloat 32
+ 7: TypeVector 6(float) 3
+ 8(hs_in_t): TypeStruct 7(fvec3)
+ 9: TypeInt 32 0
+ 10: 9(int) Constant 3
+ 11: TypeArray 8(hs_in_t) 10
+ 12: TypePointer Function 11
+ 13: TypePointer Function 9(int)
+ 14(hs_out_t): TypeStruct 7(fvec3)
+ 15: TypeFunction 14(hs_out_t) 12(ptr) 13(ptr)
+ 20: TypeArray 14(hs_out_t) 10
+ 21: TypeArray 6(float) 10
+ 22(hs_pcf_t): TypeStruct 21 6(float)
+ 23: TypeFunction 22(hs_pcf_t) 20
+ 27: TypePointer Function 14(hs_out_t)
+ 29: TypeInt 32 1
+ 30: 29(int) Constant 0
+ 34: TypePointer Function 7(fvec3)
+ 40: TypePointer Input 11
+ 41(i): 40(ptr) Variable Input
+ 44: TypePointer Input 9(int)
+ 45(cpid): 44(ptr) Variable Input
+ 47: TypePointer Output 14(hs_out_t)
+48(@entryPointOutput): 47(ptr) Variable Output
+ 54: 9(int) Constant 2
+ 55: 9(int) Constant 1
+ 56: 9(int) Constant 0
+ 58: TypeBool
+ 62: TypePointer Function 20
+ 70: 29(int) Constant 1
+ 77: 29(int) Constant 2
+ 84: TypePointer Function 22(hs_pcf_t)
+ 88: TypePointer Output 21
+89(@patchConstantOutput_tfactor): 88(ptr) Variable Output
+ 90: TypePointer Function 6(float)
+ 93: TypePointer Output 6(float)
+101(@patchConstantOutput_flInFactor): 93(ptr) Variable Output
+ 111: 6(float) Constant 1082130432
+ 116(hs_pcf_t): TypeStruct
+ 117: TypePointer Output 116(hs_pcf_t)
+118(@patchConstantOutput): 117(ptr) Variable Output
+ 4(main): 2 Function None 3
+ 5: Label
+ 39(i): 12(ptr) Variable Function
+ 43(cpid): 13(ptr) Variable Function
+ 49(param): 12(ptr) Variable Function
+ 51(param): 13(ptr) Variable Function
+ 63(pcf_out): 62(ptr) Variable Function
+ 64(i): 12(ptr) Variable Function
+ 65(param): 12(ptr) Variable Function
+ 67(param): 13(ptr) Variable Function
+ 71(i): 12(ptr) Variable Function
+ 72(param): 12(ptr) Variable Function
+ 74(param): 13(ptr) Variable Function
+ 78(i): 12(ptr) Variable Function
+ 79(param): 12(ptr) Variable Function
+ 81(param): 13(ptr) Variable Function
+85(@patchConstantResult): 84(ptr) Variable Function
+ 42: 11 Load 41(i)
+ Store 39(i) 42
+ 46: 9(int) Load 45(cpid)
+ Store 43(cpid) 46
+ 50: 11 Load 39(i)
+ Store 49(param) 50
+ 52: 9(int) Load 43(cpid)
+ Store 51(param) 52
+ 53:14(hs_out_t) FunctionCall 18(@main(struct-hs_in_t-vf31[3];u1;) 49(param) 51(param)
+ Store 48(@entryPointOutput) 53
+ ControlBarrier 54 55 56
+ 57: 9(int) Load 45(cpid)
+ 59: 58(bool) IEqual 57 30
+ SelectionMerge 61 None
+ BranchConditional 59 60 61
+ 60: Label
+ 66: 11 Load 64(i)
+ Store 65(param) 66
+ Store 67(param) 56
+ 68:14(hs_out_t) FunctionCall 18(@main(struct-hs_in_t-vf31[3];u1;) 65(param) 67(param)
+ 69: 27(ptr) AccessChain 63(pcf_out) 30
+ Store 69 68
+ 73: 11 Load 71(i)
+ Store 72(param) 73
+ Store 74(param) 55
+ 75:14(hs_out_t) FunctionCall 18(@main(struct-hs_in_t-vf31[3];u1;) 72(param) 74(param)
+ 76: 27(ptr) AccessChain 63(pcf_out) 70
+ Store 76 75
+ 80: 11 Load 78(i)
+ Store 79(param) 80
+ Store 81(param) 54
+ 82:14(hs_out_t) FunctionCall 18(@main(struct-hs_in_t-vf31[3];u1;) 79(param) 81(param)
+ 83: 27(ptr) AccessChain 63(pcf_out) 77
+ Store 83 82
+ 86: 20 Load 63(pcf_out)
+ 87:22(hs_pcf_t) FunctionCall 25(PCF(struct-hs_out_t-vf31[3];) 86
+ Store 85(@patchConstantResult) 87
+ 91: 90(ptr) AccessChain 85(@patchConstantResult) 30 30
+ 92: 6(float) Load 91
+ 94: 93(ptr) AccessChain 89(@patchConstantOutput_tfactor) 30
+ Store 94 92
+ 95: 90(ptr) AccessChain 85(@patchConstantResult) 30 70
+ 96: 6(float) Load 95
+ 97: 93(ptr) AccessChain 89(@patchConstantOutput_tfactor) 70
+ Store 97 96
+ 98: 90(ptr) AccessChain 85(@patchConstantResult) 30 77
+ 99: 6(float) Load 98
+ 100: 93(ptr) AccessChain 89(@patchConstantOutput_tfactor) 77
+ Store 100 99
+ 102: 90(ptr) AccessChain 85(@patchConstantResult) 70
+ 103: 6(float) Load 102
+ Store 101(@patchConstantOutput_flInFactor) 103
+ Branch 61
+ 61: Label
+ Return
+ FunctionEnd
+18(@main(struct-hs_in_t-vf31[3];u1;):14(hs_out_t) Function None 15
+ 16(i): 12(ptr) FunctionParameter
+ 17(cpid): 13(ptr) FunctionParameter
+ 19: Label
+ 28(o): 27(ptr) Variable Function
+ 31: 9(int) Load 17(cpid)
+ 32: 6(float) ConvertUToF 31
+ 33: 7(fvec3) CompositeConstruct 32 32 32
+ 35: 34(ptr) AccessChain 28(o) 30
+ Store 35 33
+ 36:14(hs_out_t) Load 28(o)
+ ReturnValue 36
+ FunctionEnd
+25(PCF(struct-hs_out_t-vf31[3];):22(hs_pcf_t) Function None 23
+ 24(pcf_out): 20 FunctionParameter
+ 26: Label
+ 104(o): 84(ptr) Variable Function
+ 105: 6(float) CompositeExtract 24(pcf_out) 0 0 0
+ 106: 90(ptr) AccessChain 104(o) 30 30
+ Store 106 105
+ 107: 6(float) CompositeExtract 24(pcf_out) 1 0 0
+ 108: 90(ptr) AccessChain 104(o) 30 70
+ Store 108 107
+ 109: 6(float) CompositeExtract 24(pcf_out) 2 0 0
+ 110: 90(ptr) AccessChain 104(o) 30 77
+ Store 110 109
+ 112: 90(ptr) AccessChain 104(o) 70
+ Store 112 111
+ 113:22(hs_pcf_t) Load 104(o)
+ ReturnValue 113
+ FunctionEnd
0:? Constant:
0:? 0 (const int)
0:? true case
-0:? Function Call: PCF( ( temp void)
+0:? Sequence
+0:? Function Call: PCF( ( temp void)
0:33 Function Definition: PCF( ( temp void)
0:33 Function Parameters:
0:? Linker Objects
0:? Constant:
0:? 0 (const int)
0:? true case
-0:? Function Call: PCF( ( temp void)
+0:? Sequence
+0:? Function Call: PCF( ( temp void)
0:33 Function Definition: PCF( ( temp void)
0:33 Function Parameters:
0:? Linker Objects
--- /dev/null
+// ***
+// per-control-point invocation of PCF from entry point return value
+// ***
+
+struct hs_in_t
+{
+ float3 val : TEXCOORD0;
+};
+
+struct hs_pcf_t
+{
+ float tfactor[3] : SV_TessFactor;
+ float flInFactor : SV_InsideTessFactor;
+};
+
+struct hs_out_t
+{
+ float3 val : TEXCOORD0;
+};
+
+[ domain ("tri") ]
+[ partitioning ("fractional_odd") ]
+[ outputtopology ("triangle_cw") ]
+[ outputcontrolpoints (3) ]
+[ patchconstantfunc ( "PCF" ) ]
+hs_out_t main (InputPatch <hs_in_t, 3> i , uint cpid : SV_OutputControlPointID)
+{
+ hs_out_t o;
+ o.val = cpid;
+ return o;
+}
+
+hs_pcf_t PCF( const OutputPatch <hs_out_t, 3> pcf_out)
+{
+ hs_pcf_t o;
+
+ o.tfactor[0] = pcf_out[0].val.x;
+ o.tfactor[1] = pcf_out[1].val.x;
+ o.tfactor[2] = pcf_out[2].val.x;
+ o.flInFactor = 4;
+
+ return o;
+}
{"hlsl.hull.1.tesc", "main"},
{"hlsl.hull.2.tesc", "main"},
{"hlsl.hull.void.tesc", "main"},
+ {"hlsl.hull.ctrlpt-1.tesc", "main"},
{"hlsl.identifier.sample.frag", "main"},
{"hlsl.if.frag", "PixelShaderFunction"},
{"hlsl.inoutquals.frag", "main"},
return intermediate.addSymbol(*it->second->getAsVariable());
};
+
+ const auto isPerCtrlPt = [this](const TType& type) {
+ // TODO: this is not sufficient to reject all such cases in malformed shaders.
+ return type.isArray() && !type.isRuntimeSizedArray();
+ };
// We will perform these steps. Each is in a scoped block for separation: they could
// become separate functions to make addPatchConstantInvocation shorter.
// 2. Synthesizes a call to the patchconstfunction using builtin variables from either main,
// or the ones we created. Matching is based on builtin type. We may use synthesized
// variables from (1) above.
+ //
+ // 2B: Synthesize per control point invocations of wrapped entry point if the PCF requires them.
//
// 3. Create a return sequence: copy the return value (if any) from the PCF to a
// (non-sanitized) output variable. In case this may involve multiple copies, such as for
// an arrayed variable, a temporary copy of the PCF output is created to avoid multiple
// indirections into a complex R-value coming from the call to the PCF.
- //
- // 4. Add a barrier to the end of the entry point body
- //
- // 5. Call the PCF inside an if test for (invocation id == 0).
+ //
+ // 4. Create a barrier.
+ //
+ // 5/5B. Call the PCF inside an if test for (invocation id == 0).
TFunction& patchConstantFunction = const_cast<TFunction&>(*candidateList[0]);
const int pcfParamCount = patchConstantFunction.getParamCount();
TIntermSymbol* invocationIdSym = findLinkageSymbol(EbvInvocationId);
TIntermSequence& epBodySeq = entryPointFunctionBody->getAsAggregate()->getSequence();
+ int perCtrlPtParam = -1; // -1 means there isn't one.
+
// ================ Step 1A: Union Interfaces ================
// Our patch constant function.
{
findBuiltIns(patchConstantFunction, pcfBuiltIns);
findBuiltIns(*entryPointFunction, epfBuiltIns);
- // Patchconstantfunction can contain only builtin qualified variables. (Technically, only HS inputs,
- // but this test is less assertive than that).
-
- for (auto bi = pcfBuiltIns.begin(); bi != pcfBuiltIns.end(); ++bi) {
- if (bi->builtIn == EbvNone) {
- error(loc, "patch constant function invalid parameter", "", "");
- return;
- }
- }
-
// Find the set of builtins in the PCF that are not present in the entry point.
std::set<tInterstageIoData> notInEntryPoint;
// Now we'll add those to the entry and to the linkage.
for (int p=0; p<pcfParamCount; ++p) {
- TType* paramType = patchConstantFunction[p].type->clone();
const TBuiltInVariable biType = patchConstantFunction[p].declaredBuiltIn;
const TStorageQualifier storage = patchConstantFunction[p].type->getQualifier().storage;
- // Use the original declaration type for the linkage
- paramType->getQualifier().builtIn = biType;
+ // Track whether there is any per control point input
+ if (isPerCtrlPt(*patchConstantFunction[p].type)) {
+ if (perCtrlPtParam >= 0) {
+ // Presently we only support one per ctrl pt input. TODO: does HLSL even allow multiple?
+ error(loc, "unimplemented: multiple per control point inputs to patch constant function", "", "");
+ return;
+ }
+ perCtrlPtParam = p;
+ }
- if (notInEntryPoint.count(tInterstageIoData(biType, storage)) == 1)
- addToLinkage(*paramType, patchConstantFunction[p].name, nullptr);
+ if (biType != EbvNone) {
+ TType* paramType = patchConstantFunction[p].type->clone();
+ // Use the original declaration type for the linkage
+ paramType->getQualifier().builtIn = biType;
+
+ if (notInEntryPoint.count(tInterstageIoData(biType, storage)) == 1)
+ addToLinkage(*paramType, patchConstantFunction[p].name, nullptr);
+ }
}
// If we didn't find it because the shader made one, add our own.
}
TIntermTyped* pcfArguments = nullptr;
+ TVariable* perCtrlPtVar = nullptr;
// ================ Step 1B: Argument synthesis ================
// Create pcfArguments for synthesis of patchconstantfunction invocation
// TODO: handle struct or array inputs
{
for (int p=0; p<pcfParamCount; ++p) {
- if (patchConstantFunction[p].type->isArray() ||
- patchConstantFunction[p].type->isStruct()) {
+ if ((patchConstantFunction[p].type->isArray() && !isPerCtrlPt(*patchConstantFunction[p].type)) ||
+ (!patchConstantFunction[p].type->isArray() && patchConstantFunction[p].type->isStruct())) {
error(loc, "unimplemented array or variable in patch constant function signature", "", "");
return;
}
- // find which builtin it is
- const TBuiltInVariable biType = patchConstantFunction[p].declaredBuiltIn;
+ TIntermSymbol* inputArg = nullptr;
- TIntermSymbol* builtIn = findLinkageSymbol(biType);
+ if (p == perCtrlPtParam) {
+ if (perCtrlPtVar == nullptr) {
+ perCtrlPtVar = makeInternalVariable(*patchConstantFunction[perCtrlPtParam].name,
+ *patchConstantFunction[perCtrlPtParam].type);
+
+ perCtrlPtVar->getWritableType().getQualifier().makeTemporary();
+ }
+ inputArg = intermediate.addSymbol(*perCtrlPtVar, loc);
+ } else {
+ // find which builtin it is
+ const TBuiltInVariable biType = patchConstantFunction[p].declaredBuiltIn;
+
+ inputArg = findLinkageSymbol(biType);
- if (builtIn == nullptr) {
- error(loc, "unable to find patch constant function builtin variable", "", "");
- return;
+ if (inputArg == nullptr) {
+ error(loc, "unable to find patch constant function builtin variable", "", "");
+ return;
+ }
}
if (pcfParamCount == 1)
- pcfArguments = builtIn;
+ pcfArguments = inputArg;
else
- pcfArguments = intermediate.growAggregate(pcfArguments, builtIn);
+ pcfArguments = intermediate.growAggregate(pcfArguments, inputArg);
}
}
// ================ Step 2: Synthesize call to PCF ================
+ TIntermAggregate* pcfCallSequence = nullptr;
TIntermTyped* pcfCall = nullptr;
{
pcfCall = intermediate.setAggregateOperator(pcfArguments, EOpFunctionCall, patchConstantFunction.getType(), loc);
pcfCall->getAsAggregate()->setUserDefined();
pcfCall->getAsAggregate()->setName(patchConstantFunction.getMangledName());
- intermediate.addToCallGraph(infoSink, entryPointFunction->getMangledName(), patchConstantFunction.getMangledName());
+ intermediate.addToCallGraph(infoSink, intermediate.getEntryPointMangledName().c_str(),
+ patchConstantFunction.getMangledName());
if (pcfCall->getAsAggregate()) {
TQualifierList& qualifierList = pcfCall->getAsAggregate()->getQualifierList();
}
}
+ // ================ Step 2B: Per Control Point synthesis ================
+ // If there is per control point data, we must either emulate that with multiple
+ // invocations of the entry point to build up an array, or (TODO:) use a yet
+ // unavailable extension to look across the SIMD lanes. This is the former
+ // as a placeholder for the latter.
+ if (perCtrlPtParam >= 0) {
+ // We must introduce a local temp variable of the type wanted by the PCF input.
+ const int arraySize = patchConstantFunction[perCtrlPtParam].type->getOuterArraySize();
+
+ if (entryPointFunction->getType().getBasicType() == EbtVoid) {
+ error(loc, "entry point must return a value for use with patch constant function", "", "");
+ return;
+ }
+
+ // Create calls to wrapped main to fill in the array. We will substitute fixed values
+ // of invocation ID when calling the wrapped main.
+
+ // This is the type of the each member of the per ctrl point array.
+ const TType derefType(perCtrlPtVar->getType(), 0);
+
+ for (int cpt = 0; cpt < arraySize; ++cpt) {
+ // TODO: improve. substr(1) here is to avoid the '@' that was grafted on but isn't in the symtab
+ // for this function.
+ const TString origName = entryPointFunction->getName().substr(1);
+ TFunction callee(&origName, TType(EbtVoid));
+ TIntermTyped* callingArgs = nullptr;
+
+ for (int i = 0; i < entryPointFunction->getParamCount(); i++) {
+ TParameter& param = (*entryPointFunction)[i];
+ TType& paramType = *param.type;
+
+ if (paramType.getQualifier().isParamOutput()) {
+ error(loc, "unimplemented: entry point outputs in patch constant function invocation", "", "");
+ return;
+ }
+
+ if (paramType.getQualifier().isParamInput()) {
+ TIntermTyped* arg = nullptr;
+ if ((*entryPointFunction)[i].declaredBuiltIn == EbvInvocationId) {
+ // substitute invocation ID with the array element ID
+ arg = intermediate.addConstantUnion(cpt, loc);
+ } else {
+ TVariable* argVar = makeInternalVariable(*param.name, *param.type);
+ argVar->getWritableType().getQualifier().makeTemporary();
+ arg = intermediate.addSymbol(*argVar);
+ }
+
+ handleFunctionArgument(&callee, callingArgs, arg);
+ }
+ }
+
+ // Call and assign to per ctrl point variable
+ currentCaller = intermediate.getEntryPointMangledName().c_str();
+ TIntermTyped* callReturn = handleFunctionCall(loc, &callee, callingArgs);
+ TIntermTyped* index = intermediate.addConstantUnion(cpt, loc);
+ TIntermSymbol* perCtrlPtSym = intermediate.addSymbol(*perCtrlPtVar, loc);
+ TIntermTyped* element = intermediate.addIndex(EOpIndexDirect, perCtrlPtSym, index, loc);
+ element->setType(derefType);
+ element->setLoc(loc);
+
+ pcfCallSequence = intermediate.growAggregate(pcfCallSequence,
+ handleAssign(loc, EOpAssign, element, callReturn));
+ }
+ }
+
// ================ Step 3: Create return Sequence ================
// Return sequence: copy PCF result to a temporary, then to shader output variable.
if (pcfCall->getBasicType() != EbtVoid) {
if (patchConstantFunction.getDeclaredBuiltInType() != EbvNone)
outType.getQualifier().builtIn = patchConstantFunction.getDeclaredBuiltInType();
+ outType.getQualifier().patch = true; // make it a per-patch variable
+
TVariable* pcfOutput = makeInternalVariable("@patchConstantOutput", outType);
pcfOutput->getWritableType().getQualifier().storage = EvqVaryingOut;
if (pcfOutput->getType().containsBuiltInInterstageIO(language))
split(*pcfOutput);
+ assignLocations(*pcfOutput);
+
TIntermSymbol* pcfOutputSym = intermediate.addSymbol(*pcfOutput, loc);
// The call to the PCF is a complex R-value: we want to store it in a temp to avoid
// repeated calls to the PCF:
TVariable* pcfCallResult = makeInternalVariable("@patchConstantResult", *retType);
pcfCallResult->getWritableType().getQualifier().makeTemporary();
- TIntermSymbol* pcfResultVar = intermediate.addSymbol(*pcfCallResult, loc);
- // sanitizeType(&pcfCall->getWritableType());
- TIntermNode* pcfResultAssign = intermediate.addAssign(EOpAssign, pcfResultVar, pcfCall, loc);
+ TIntermSymbol* pcfResultVar = intermediate.addSymbol(*pcfCallResult, loc);
+ TIntermNode* pcfResultAssign = handleAssign(loc, EOpAssign, pcfResultVar, pcfCall);
TIntermNode* pcfResultToOut = handleAssign(loc, EOpAssign, pcfOutputSym, intermediate.addSymbol(*pcfCallResult, loc));
- TIntermTyped* pcfAggregate = nullptr;
- pcfAggregate = intermediate.growAggregate(pcfAggregate, pcfResultAssign);
- pcfAggregate = intermediate.growAggregate(pcfAggregate, pcfResultToOut);
- pcfAggregate = intermediate.setAggregateOperator(pcfAggregate, EOpSequence, *retType, loc);
-
- pcfCall = pcfAggregate;
+ pcfCallSequence = intermediate.growAggregate(pcfCallSequence, pcfResultAssign);
+ pcfCallSequence = intermediate.growAggregate(pcfCallSequence, pcfResultToOut);
+ } else {
+ pcfCallSequence = intermediate.growAggregate(pcfCallSequence, pcfCall);
}
// ================ Step 4: Barrier ================
barrier->setType(TType(EbtVoid));
epBodySeq.insert(epBodySeq.end(), barrier);
- // ================ Step 5: Test on invocation ID ================
+ // ================ Step 5: Test on invocation ID ================
TIntermTyped* zero = intermediate.addConstantUnion(0, loc, true);
TIntermTyped* cmp = intermediate.addBinaryNode(EOpEqual, invocationIdSym, zero, loc, TType(EbtBool));
- // Create if statement
- TIntermTyped* invocationIdTest = new TIntermSelection(cmp, pcfCall, nullptr);
+
+ // ================ Step 5B: Create if statement on Invocation ID == 0 ================
+ intermediate.setAggregateOperator(pcfCallSequence, EOpSequence, TType(EbtVoid), loc);
+ TIntermTyped* invocationIdTest = new TIntermSelection(cmp, pcfCallSequence, nullptr);
invocationIdTest->setLoc(loc);
// add our test sequence before the return.
projects / platform / upstream / glslang.git / commitdiff