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GLSL: Implement XFB for redeclared built-in blocks.

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This commit is contained in:
John Kessenich 2017-12-15 04:41:28 -07:00
parent 04f4566f28
commit be3842f6ae
8 changed files with 133 additions and 47 deletions
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6
Test/440.vert
View File

@ -174,6 +174,12 @@ out layout(xfb_buffer=7, xfb_offset=0) bblck10 { // link ERROR, implicit stride
float f;
} bbinst10;
layout(xfb_buffer = 3) out;
layout(xfb_offset = 32) out gl_PerVertex {
layout(xfb_buffer = 2) float gl_PointSize; // ERROR, change in xfb_buffer
vec4 gl_Position;
};
int drawParamsBad()
{
return gl_BaseVertexARB + gl_BaseInstanceARB + gl_DrawIDARB; // ERROR, extension not requested

2
Test/baseResults/400.geom.out
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@ -1,7 +1,7 @@
400.geom
ERROR: 0:12: 'invocations' : can only apply to a standalone qualifier
ERROR: 0:20: 'patch' : not supported in this stage: geometry
ERROR: 0:20: 'gl_PointSize' : cannot add layout to redeclared block member
ERROR: 0:20: 'gl_PointSize' : cannot add non-XFB layout to redeclared block member
ERROR: 0:20: 'gl_PointSize' : cannot add patch to redeclared block member
ERROR: 0:25: 'length' : array must first be sized by a redeclaration or layout qualifier
ERROR: 0:36: 'length' : array must first be sized by a redeclaration or layout qualifier

81
Test/baseResults/440.vert.out
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@ -46,51 +46,52 @@ 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: 0:179: 'gl_BaseVertexARB' : required extension not requested: GL_ARB_shader_draw_parameters
ERROR: 0:179: 'gl_BaseInstanceARB' : required extension not requested: GL_ARB_shader_draw_parameters
ERROR: 0:179: 'gl_DrawIDARB' : required extension not requested: GL_ARB_shader_draw_parameters
ERROR: 0:187: 'assign' : l-value required "gl_BaseVertexARB" (can't modify shader input)
ERROR: 0:188: 'assign' : l-value required "gl_BaseInstanceARB" (can't modify shader input)
ERROR: 0:189: 'assign' : l-value required "gl_DrawIDARB" (can't modify shader input)
ERROR: 0:190: 'glBaseInstanceARB' : undeclared identifier
ERROR: 54 compilation errors. No code generated.
ERROR: 0:179: 'xfb_buffer' : member cannot contradict block (or what block inherited from global)
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
ERROR: 0:193: 'assign' : l-value required "gl_BaseVertexARB" (can't modify shader input)
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.
Shader version: 440
Requested GL_ARB_shader_draw_parameters
in xfb mode
ERROR: node is still EOpNull!
0:177 Function Definition: drawParamsBad( ( global int)
0:177 Function Parameters:
0:179 Sequence
0:179 Branch: Return with expression
0:179 add ( temp int)
0:179 add ( temp int)
0:179 'gl_BaseVertexARB' ( in int BaseVertex)
0:179 'gl_BaseInstanceARB' ( in int BaseInstance)
0:179 'gl_DrawIDARB' ( in int DrawId)
0:184 Function Definition: drawParams( ( global int)
0:184 Function Parameters:
0:186 Sequence
0:186 Branch: Return with expression
0:186 add ( temp int)
0:186 add ( temp int)
0:186 'gl_BaseVertexARB' ( in int BaseVertex)
0:186 'gl_BaseInstanceARB' ( in int BaseInstance)
0:186 'gl_DrawIDARB' ( in int DrawId)
0:187 move second child to first child ( temp int)
0:187 'gl_BaseVertexARB' ( in int BaseVertex)
0:187 Constant:
0:187 3 (const int)
0:188 move second child to first child ( temp int)
0:188 'gl_BaseInstanceARB' ( in int BaseInstance)
0:188 Constant:
0:188 3 (const int)
0:189 move second child to first child ( temp int)
0:189 'gl_DrawIDARB' ( in int DrawId)
0:189 Constant:
0:189 3 (const int)
0:190 'glBaseInstanceARB' ( temp float)
0:183 Function Definition: drawParamsBad( ( global int)
0:183 Function Parameters:
0:185 Sequence
0:185 Branch: Return with expression
0:185 add ( temp int)
0:185 add ( temp int)
0:185 'gl_BaseVertexARB' ( in int BaseVertex)
0:185 'gl_BaseInstanceARB' ( in int BaseInstance)
0:185 'gl_DrawIDARB' ( in int DrawId)
0:190 Function Definition: drawParams( ( global int)
0:190 Function Parameters:
0:192 Sequence
0:192 Branch: Return with expression
0:192 add ( temp int)
0:192 add ( temp int)
0:192 'gl_BaseVertexARB' ( in int BaseVertex)
0:192 'gl_BaseInstanceARB' ( in int BaseInstance)
0:192 'gl_DrawIDARB' ( in int DrawId)
0:193 move second child to first child ( temp int)
0:193 'gl_BaseVertexARB' ( in int BaseVertex)
0:193 Constant:
0:193 3 (const int)
0:194 move second child to first child ( temp int)
0:194 'gl_BaseInstanceARB' ( in int BaseInstance)
0:194 Constant:
0:194 3 (const int)
0:195 move second child to first child ( temp int)
0:195 'gl_DrawIDARB' ( in int DrawId)
0:195 Constant:
0:195 3 (const int)
0:196 'glBaseInstanceARB' ( temp float)
0:? Linker Objects
0:? 'a' (layout( location=2 component=2) in 2-component vector of float)
0:? 'b' (layout( location=2 component=1) in float)
@ -153,6 +154,7 @@ 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:? 'gl_VertexID' ( gl_VertexId int VertexId)
0:? 'gl_InstanceID' ( gl_InstanceId int InstanceId)
@ -235,6 +237,7 @@ 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:? 'gl_VertexID' ( gl_VertexId int VertexId)
0:? 'gl_InstanceID' ( gl_InstanceId int InstanceId)

47
Test/baseResults/spv.builtInXFB.vert.out Executable file
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@ -0,0 +1,47 @@
spv.builtInXFB.vert
// Module Version 10000
// Generated by (magic number): 80002
// Id's are bound by 21
Capability Shader
Capability TransformFeedback
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint Vertex 4 "main" 10
ExecutionMode 4 Xfb
Source GLSL 450
Name 4 "main"
Name 8 "gl_PerVertex"
MemberName 8(gl_PerVertex) 0 "gl_Position"
MemberName 8(gl_PerVertex) 1 "gl_PointSize"
Name 10 ""
MemberDecorate 8(gl_PerVertex) 0 Offset 20
MemberDecorate 8(gl_PerVertex) 0 BuiltIn Position
MemberDecorate 8(gl_PerVertex) 1 Offset 16
MemberDecorate 8(gl_PerVertex) 1 BuiltIn PointSize
Decorate 8(gl_PerVertex) Block
Decorate 8(gl_PerVertex) XfbBuffer 0
Decorate 10 XfbBuffer 0
2: TypeVoid
3: TypeFunction 2
6: TypeFloat 32
7: TypeVector 6(float) 4
8(gl_PerVertex): TypeStruct 7(fvec4) 6(float)
9: TypePointer Output 8(gl_PerVertex)
10: 9(ptr) Variable Output
11: TypeInt 32 1
12: 11(int) Constant 0
13: 6(float) Constant 1065353216
14: 7(fvec4) ConstantComposite 13 13 13 13
15: TypePointer Output 7(fvec4)
17: 11(int) Constant 1
18: 6(float) Constant 1073741824
19: TypePointer Output 6(float)
4(main): 2 Function None 3
5: Label
16: 15(ptr) AccessChain 10 12
Store 16 14
20: 19(ptr) AccessChain 10 17
Store 20 18
Return
FunctionEnd

15
Test/spv.builtInXFB.vert Normal file
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@ -0,0 +1,15 @@
#version 450
layout(xfb_buffer = 1, xfb_stride = 64) out;
layout (xfb_buffer = 1, xfb_offset = 16) out gl_PerVertex
{
float gl_PointSize;
vec4 gl_Position;
};
void main()
{
gl_Position = vec4(1.0);
gl_PointSize = 2.0;
}

8
glslang/Include/Types.h
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@ -650,15 +650,19 @@ public:
layoutXfbOffset = layoutXfbOffsetEnd;
}
bool hasLayout() const
bool hasNonXfbLayout() const
{
return hasUniformLayout() ||
hasAnyLocation() ||
hasStream() ||
hasXfb() ||
hasFormat() ||
layoutPushConstant;
}
bool hasLayout() const
{
return hasNonXfbLayout() ||
hasXfb();
}
TLayoutMatrix layoutMatrix : 3;
TLayoutPacking layoutPacking : 4;
int layoutOffset;

20
glslang/MachineIndependent/ParseHelper.cpp
View File

@ -3478,17 +3478,24 @@ void TParseContext::redeclareBuiltinBlock(const TSourceLoc& loc, TTypeList& newT
return;
}
// 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;
fixBlockXfbOffsets(currentBlockQualifier, newTypeList);
}
// Edit and error check the container against the redeclaration
// - remove unused members
// - ensure remaining qualifiers/types match
TType& type = block->getWritableType();
#ifdef NV_EXTENSIONS
// if gl_PerVertex is redeclared for the purpose of passing through "gl_Position"
// for passthrough purpose, the redclared block should have the same qualifers as
// for passthrough purpose, the redeclared block should have the same qualifers as
// the current one
if (currentBlockQualifier.layoutPassthrough)
{
if (currentBlockQualifier.layoutPassthrough) {
type.getQualifier().layoutPassthrough = currentBlockQualifier.layoutPassthrough;
type.getQualifier().storage = currentBlockQualifier.storage;
type.getQualifier().layoutStream = currentBlockQualifier.layoutStream;
@ -3529,10 +3536,12 @@ void TParseContext::redeclareBuiltinBlock(const TSourceLoc& loc, TTypeList& newT
arrayLimitCheck(loc, member->type->getFieldName(), newType.getOuterArraySize());
if (newType.getQualifier().isMemory())
error(memberLoc, "cannot add memory qualifier to redeclared block member", member->type->getFieldName().c_str(), "");
if (newType.getQualifier().hasLayout())
error(memberLoc, "cannot add layout to redeclared block member", member->type->getFieldName().c_str(), "");
if (newType.getQualifier().hasNonXfbLayout())
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)
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;
oldType.getQualifier().invariant = newType.getQualifier().invariant;
@ -3540,6 +3549,7 @@ void TParseContext::redeclareBuiltinBlock(const TSourceLoc& loc, TTypeList& newT
oldType.getQualifier().smooth = newType.getQualifier().smooth;
oldType.getQualifier().flat = newType.getQualifier().flat;
oldType.getQualifier().nopersp = newType.getQualifier().nopersp;
oldType.getQualifier().layoutXfbOffset = newType.getQualifier().layoutXfbOffset;
if (oldType.isImplicitlySizedArray() && newType.isExplicitlySizedArray())
oldType.changeOuterArraySize(newType.getOuterArraySize());

1
gtests/Spv.FromFile.cpp
View File

@ -232,6 +232,7 @@ INSTANTIATE_TEST_CASE_P(
"spv.bool.vert",
"spv.boolInBlock.frag",
"spv.branch-return.vert",
"spv.builtInXFB.vert",
"spv.conditionalDiscard.frag",
"spv.conversion.frag",
"spv.dataOut.frag",