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GLSL: XFB: more support for built-in block redeclarations with XFB.

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- correct inheritence (or not) of the right XFB buffer
- compute implicit stride (fixes #1212)
- semantic check block-member redeclarations
- inherit stride from a member
This commit is contained in:
John Kessenich 2018-01-09 17:25:46 -07:00
parent 9c6f8cc29b
commit eb2c0c72bf
7 changed files with 195 additions and 8 deletions
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8
Test/baseResults/440.vert.out
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@ -46,7 +46,9 @@ ERROR: 0:166: 'xfb_buffer' : buffer is too large: gl_MaxTransformFeedbackBuffers
ERROR: 0:169: 'xfb_buffer' : buffer is too large: gl_MaxTransformFeedbackBuffers is 4
ERROR: 0:169: 'xfb_stride' : 1/4 stride is too large: gl_MaxTransformFeedbackInterleavedComponents is 64
ERROR: 0:171: 'xfb_buffer' : buffer is too large: gl_MaxTransformFeedbackBuffers is 4
ERROR: 0:178: 'xfb_offset' : overlapping offsets at offset 36 in buffer 3
ERROR: 0:179: 'xfb_buffer' : member cannot contradict block (or what block inherited from global)
ERROR: 0:178: 'xfb_offset' : overlapping offsets at offset 32 in buffer 3
ERROR: 0:185: 'gl_BaseVertexARB' : required extension not requested: GL_ARB_shader_draw_parameters
ERROR: 0:185: 'gl_BaseInstanceARB' : required extension not requested: GL_ARB_shader_draw_parameters
ERROR: 0:185: 'gl_DrawIDARB' : required extension not requested: GL_ARB_shader_draw_parameters
@ -54,7 +56,7 @@ ERROR: 0:193: 'assign' : l-value required "gl_BaseVertexARB" (can't modify shad
ERROR: 0:194: 'assign' : l-value required "gl_BaseInstanceARB" (can't modify shader input)
ERROR: 0:195: 'assign' : l-value required "gl_DrawIDARB" (can't modify shader input)
ERROR: 0:196: 'glBaseInstanceARB' : undeclared identifier
ERROR: 55 compilation errors. No code generated.
ERROR: 57 compilation errors. No code generated.
Shader version: 440
@ -154,7 +156,7 @@ ERROR: node is still EOpNull!
0:? 'bbinst9' ( out block{layout( xfb_buffer=4 xfb_offset=1) out bool b, layout( xfb_buffer=4 xfb_offset=12) out structure{ global bool b, global structure{ global int i, global double d, global float f} s, global 2-component vector of float v2} t, layout( xfb_buffer=4 xfb_offset=52) out 3X3 matrix of float m3, layout( xfb_buffer=4 xfb_offset=90) out int i, layout( xfb_buffer=4 xfb_offset=98) out double d, layout( xfb_buffer=4 xfb_offset=108) out structure{ global int a} s})
0:? 'bm' (layout( xfb_buffer=5 xfb_offset=0) smooth out float)
0:? 'bbinst10' ( out block{layout( xfb_buffer=7 xfb_offset=0) out 4X4 matrix of double m1, layout( xfb_buffer=7 xfb_offset=128) out 4X4 matrix of double m2, layout( xfb_buffer=7 xfb_offset=256) out float f})
0:? 'anon@0' ( out block{layout( xfb_buffer=0 xfb_offset=36) gl_Position 4-component vector of float Position gl_Position, layout( xfb_buffer=0 xfb_offset=32) gl_PointSize float PointSize gl_PointSize, })
0:? 'anon@0' ( out block{layout( xfb_buffer=3 xfb_offset=36) gl_Position 4-component vector of float Position gl_Position, layout( xfb_buffer=3 xfb_offset=32) gl_PointSize float PointSize gl_PointSize, })
0:? 'gl_VertexID' ( gl_VertexId int VertexId)
0:? 'gl_InstanceID' ( gl_InstanceId int InstanceId)
@ -237,7 +239,7 @@ ERROR: node is still EOpNull!
0:? 'bbinst9' ( out block{layout( xfb_buffer=4 xfb_offset=1) out bool b, layout( xfb_buffer=4 xfb_offset=12) out structure{ global bool b, global structure{ global int i, global double d, global float f} s, global 2-component vector of float v2} t, layout( xfb_buffer=4 xfb_offset=52) out 3X3 matrix of float m3, layout( xfb_buffer=4 xfb_offset=90) out int i, layout( xfb_buffer=4 xfb_offset=98) out double d, layout( xfb_buffer=4 xfb_offset=108) out structure{ global int a} s})
0:? 'bm' (layout( xfb_buffer=5 xfb_offset=0) smooth out float)
0:? 'bbinst10' ( out block{layout( xfb_buffer=7 xfb_offset=0) out 4X4 matrix of double m1, layout( xfb_buffer=7 xfb_offset=128) out 4X4 matrix of double m2, layout( xfb_buffer=7 xfb_offset=256) out float f})
0:? 'anon@0' ( out block{layout( xfb_buffer=0 xfb_offset=36) gl_Position 4-component vector of float Position gl_Position, layout( xfb_buffer=0 xfb_offset=32) gl_PointSize float PointSize gl_PointSize, })
0:? 'anon@0' ( out block{layout( xfb_buffer=3 xfb_offset=36) gl_Position 4-component vector of float Position gl_Position, layout( xfb_buffer=3 xfb_offset=32) gl_PointSize float PointSize gl_PointSize, })
0:? 'gl_VertexID' ( gl_VertexId int VertexId)
0:? 'gl_InstanceID' ( gl_InstanceId int InstanceId)

68
Test/baseResults/spv.xfb2.vert.out Executable file
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@ -0,0 +1,68 @@
spv.xfb2.vert
// Module Version 10000
// Generated by (magic number): 80003
// Id's are bound by 35
Capability Shader
Capability TransformFeedback
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint Vertex 4 "main" 10 14
ExecutionMode 4 Xfb
Source GLSL 450
Name 4 "main"
Name 8 "gl_PerVertex"
MemberName 8(gl_PerVertex) 0 "gl_Position"
Name 10 ""
Name 14 "position"
Name 17 "ComponentsBlock"
MemberName 17(ComponentsBlock) 0 "c1"
MemberName 17(ComponentsBlock) 1 "c2"
Name 19 "components"
MemberDecorate 8(gl_PerVertex) 0 Offset 16
MemberDecorate 8(gl_PerVertex) 0 BuiltIn Position
Decorate 8(gl_PerVertex) Block
Decorate 10 XfbBuffer 3
Decorate 10 XfbStride 32
Decorate 14(position) Location 0
MemberDecorate 17(ComponentsBlock) 0 Offset 0
MemberDecorate 17(ComponentsBlock) 1 Offset 16
Decorate 17(ComponentsBlock) Block
Decorate 19(components) DescriptorSet 0
Decorate 19(components) Binding 5
2: TypeVoid
3: TypeFunction 2
6: TypeFloat 32
7: TypeVector 6(float) 4
8(gl_PerVertex): TypeStruct 7(fvec4)
9: TypePointer Output 8(gl_PerVertex)
10: 9(ptr) Variable Output
11: TypeInt 32 1
12: 11(int) Constant 0
13: TypePointer Input 7(fvec4)
14(position): 13(ptr) Variable Input
16: TypeVector 6(float) 2
17(ComponentsBlock): TypeStruct 7(fvec4) 16(fvec2)
18: TypePointer Uniform 17(ComponentsBlock)
19(components): 18(ptr) Variable Uniform
20: TypePointer Uniform 7(fvec4)
24: 11(int) Constant 1
25: TypePointer Uniform 16(fvec2)
28: 6(float) Constant 0
33: TypePointer Output 7(fvec4)
4(main): 2 Function None 3
5: Label
15: 7(fvec4) Load 14(position)
21: 20(ptr) AccessChain 19(components) 12
22: 7(fvec4) Load 21
23: 7(fvec4) FAdd 15 22
26: 25(ptr) AccessChain 19(components) 24
27: 16(fvec2) Load 26
29: 6(float) CompositeExtract 27 0
30: 6(float) CompositeExtract 27 1
31: 7(fvec4) CompositeConstruct 29 30 28 28
32: 7(fvec4) FAdd 23 31
34: 33(ptr) AccessChain 10 12
Store 34 32
Return
FunctionEnd

68
Test/baseResults/spv.xfb3.vert.out Executable file
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@ -0,0 +1,68 @@
spv.xfb3.vert
// Module Version 10000
// Generated by (magic number): 80003
// Id's are bound by 35
Capability Shader
Capability TransformFeedback
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint Vertex 4 "main" 10 14
ExecutionMode 4 Xfb
Source GLSL 450
Name 4 "main"
Name 8 "gl_PerVertex"
MemberName 8(gl_PerVertex) 0 "gl_Position"
Name 10 ""
Name 14 "position"
Name 17 "ComponentsBlock"
MemberName 17(ComponentsBlock) 0 "c1"
MemberName 17(ComponentsBlock) 1 "c2"
Name 19 "components"
MemberDecorate 8(gl_PerVertex) 0 Offset 16
MemberDecorate 8(gl_PerVertex) 0 BuiltIn Position
Decorate 8(gl_PerVertex) Block
Decorate 10 XfbBuffer 3
Decorate 10 XfbStride 80
Decorate 14(position) Location 0
MemberDecorate 17(ComponentsBlock) 0 Offset 0
MemberDecorate 17(ComponentsBlock) 1 Offset 16
Decorate 17(ComponentsBlock) Block
Decorate 19(components) DescriptorSet 0
Decorate 19(components) Binding 5
2: TypeVoid
3: TypeFunction 2
6: TypeFloat 32
7: TypeVector 6(float) 4
8(gl_PerVertex): TypeStruct 7(fvec4)
9: TypePointer Output 8(gl_PerVertex)
10: 9(ptr) Variable Output
11: TypeInt 32 1
12: 11(int) Constant 0
13: TypePointer Input 7(fvec4)
14(position): 13(ptr) Variable Input
16: TypeVector 6(float) 2
17(ComponentsBlock): TypeStruct 7(fvec4) 16(fvec2)
18: TypePointer Uniform 17(ComponentsBlock)
19(components): 18(ptr) Variable Uniform
20: TypePointer Uniform 7(fvec4)
24: 11(int) Constant 1
25: TypePointer Uniform 16(fvec2)
28: 6(float) Constant 0
33: TypePointer Output 7(fvec4)
4(main): 2 Function None 3
5: Label
15: 7(fvec4) Load 14(position)
21: 20(ptr) AccessChain 19(components) 12
22: 7(fvec4) Load 21
23: 7(fvec4) FAdd 15 22
26: 25(ptr) AccessChain 19(components) 24
27: 16(fvec2) Load 26
29: 6(float) CompositeExtract 27 0
30: 6(float) CompositeExtract 27 1
31: 7(fvec4) CompositeConstruct 29 30 28 28
32: 7(fvec4) FAdd 23 31
34: 33(ptr) AccessChain 10 12
Store 34 32
Return
FunctionEnd

18
Test/spv.xfb2.vert Normal file
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@ -0,0 +1,18 @@
#version 450
layout (location = 0) in vec4 position;
layout (binding = 5) uniform ComponentsBlock
{
vec4 c1;
vec2 c2;
} components;
layout (xfb_buffer = 3, xfb_offset = 16) out gl_PerVertex
{
vec4 gl_Position;
};
void main()
{
gl_Position = position + components.c1 + vec4(components.c2, 0.0, 0.0);
}

18
Test/spv.xfb3.vert Normal file
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@ -0,0 +1,18 @@
#version 450
layout (location = 0) in vec4 position;
layout (binding = 5) uniform ComponentsBlock
{
vec4 c1;
vec2 c2;
} components;
layout (xfb_buffer = 3, xfb_offset = 16) out gl_PerVertex
{
layout(xfb_stride = 80) vec4 gl_Position;
};
void main()
{
gl_Position = position + components.c1 + vec4(components.c2, 0.0, 0.0);
}

21
glslang/MachineIndependent/ParseHelper.cpp
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@ -3486,7 +3486,8 @@ void TParseContext::redeclareBuiltinBlock(const TSourceLoc& loc, TTypeList& newT
// Fix XFB stuff up, it applies to the order of the redeclaration, not
// the order of the original members.
if (currentBlockQualifier.storage == EvqVaryingOut && globalOutputDefaults.hasXfbBuffer()) {
currentBlockQualifier.layoutXfbBuffer = globalOutputDefaults.layoutXfbBuffer;
if (!currentBlockQualifier.hasXfbBuffer())
currentBlockQualifier.layoutXfbBuffer = globalOutputDefaults.layoutXfbBuffer;
fixBlockXfbOffsets(currentBlockQualifier, newTypeList);
}
@ -3545,7 +3546,8 @@ void TParseContext::redeclareBuiltinBlock(const TSourceLoc& loc, TTypeList& newT
error(memberLoc, "cannot add non-XFB layout to redeclared block member", member->type->getFieldName().c_str(), "");
if (newType.getQualifier().patch)
error(memberLoc, "cannot add patch to redeclared block member", member->type->getFieldName().c_str(), "");
if (newType.getQualifier().hasXfbBuffer() && newType.getQualifier().layoutXfbBuffer != currentBlockQualifier.layoutXfbBuffer)
if (newType.getQualifier().hasXfbBuffer() &&
newType.getQualifier().layoutXfbBuffer != currentBlockQualifier.layoutXfbBuffer)
error(memberLoc, "member cannot contradict block (or what block inherited from global)", "xfb_buffer", "");
oldType.getQualifier().centroid = newType.getQualifier().centroid;
oldType.getQualifier().sample = newType.getQualifier().sample;
@ -3555,11 +3557,20 @@ void TParseContext::redeclareBuiltinBlock(const TSourceLoc& loc, TTypeList& newT
oldType.getQualifier().flat = newType.getQualifier().flat;
oldType.getQualifier().nopersp = newType.getQualifier().nopersp;
oldType.getQualifier().layoutXfbOffset = newType.getQualifier().layoutXfbOffset;
if (oldType.getQualifier().layoutXfbOffset != TQualifier::layoutXfbBufferEnd)
oldType.getQualifier().layoutXfbBuffer = newType.getQualifier().layoutXfbBuffer;
oldType.getQualifier().layoutXfbStride = newType.getQualifier().layoutXfbStride;
if (oldType.getQualifier().layoutXfbOffset != TQualifier::layoutXfbBufferEnd) {
// if any member as an xfb_offset, then the block's xfb_buffer inherents current xfb_buffer,
// and for xfb processing, the member needs it as well, along with xfb_stride
type.getQualifier().layoutXfbBuffer = currentBlockQualifier.layoutXfbBuffer;
oldType.getQualifier().layoutXfbBuffer = currentBlockQualifier.layoutXfbBuffer;
}
if (oldType.isImplicitlySizedArray() && newType.isExplicitlySizedArray())
oldType.changeOuterArraySize(newType.getOuterArraySize());
// check and process the member's type, which will include managing xfb information
layoutTypeCheck(loc, oldType);
// go to next member
++member;
} else {
@ -4803,11 +4814,11 @@ void TParseContext::layoutQualifierCheck(const TSourceLoc& loc, const TQualifier
error(loc, "requires uniform or buffer storage qualifier", "binding", "");
}
if (qualifier.hasStream()) {
if (qualifier.storage != EvqVaryingOut)
if (!qualifier.isPipeOutput())
error(loc, "can only be used on an output", "stream", "");
}
if (qualifier.hasXfb()) {
if (qualifier.storage != EvqVaryingOut)
if (!qualifier.isPipeOutput())
error(loc, "can only be used on an output", "xfb layout qualifier", "");
}
if (qualifier.hasUniformLayout()) {

2
gtests/Spv.FromFile.cpp
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@ -331,6 +331,8 @@ INSTANTIATE_TEST_CASE_P(
"spv.precise.tese",
"spv.precise.tesc",
"spv.xfb.vert",
"spv.xfb2.vert",
"spv.xfb3.vert",
})),
FileNameAsCustomTestSuffix
);