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Allow GL_NV_mesh_shader in fragment shaders for perprimitiveNV

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- Emit relevant capability/extension for use of perprimitiveNV in fragment shader
- Remove redundant checks for mesh shader qualifiers in glslang.y
- Add profile version check for use of extension GL_NV_mesh_shader
- Add a new gtest for use of perprimitiveNV in fragment shader
This commit is contained in:
Sahil Parmar 2018-10-25 23:50:59 -07:00
parent 816bc4447c
commit 38772c0434
8 changed files with 116 additions and 21 deletions
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18
SPIRV/GlslangToSpv.cpp
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@ -7202,15 +7202,29 @@ spv::Id TGlslangToSpvTraverser::getSymbolId(const glslang::TIntermSymbol* symbol
void TGlslangToSpvTraverser::addMeshNVDecoration(spv::Id id, int member, const glslang::TQualifier& qualifier)
{
if (member >= 0) {
if (qualifier.perPrimitiveNV)
if (qualifier.perPrimitiveNV) {
// Need to add capability/extension for fragment shader.
// Mesh shader already adds this by default.
if (glslangIntermediate->getStage() == EShLangFragment) {
builder.addCapability(spv::CapabilityMeshShadingNV);
builder.addExtension(spv::E_SPV_NV_mesh_shader);
}
builder.addMemberDecoration(id, (unsigned)member, spv::DecorationPerPrimitiveNV);
}
if (qualifier.perViewNV)
builder.addMemberDecoration(id, (unsigned)member, spv::DecorationPerViewNV);
if (qualifier.perTaskNV)
builder.addMemberDecoration(id, (unsigned)member, spv::DecorationPerTaskNV);
} else {
if (qualifier.perPrimitiveNV)
if (qualifier.perPrimitiveNV) {
// Need to add capability/extension for fragment shader.
// Mesh shader already adds this by default.
if (glslangIntermediate->getStage() == EShLangFragment) {
builder.addCapability(spv::CapabilityMeshShadingNV);
builder.addExtension(spv::E_SPV_NV_mesh_shader);
}
builder.addDecoration(id, spv::DecorationPerPrimitiveNV);
}
if (qualifier.perViewNV)
builder.addDecoration(id, spv::DecorationPerViewNV);
if (qualifier.perTaskNV)

54
Test/baseResults/spv.perprimitiveNV.frag.out Normal file
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@ -0,0 +1,54 @@
spv.perprimitiveNV.frag
// Module Version 10000
// Generated by (magic number): 80007
// Id's are bound by 23
Capability Shader
Capability MeshShadingNV
Extension "SPV_NV_mesh_shader"
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint Fragment 4 "main" 8 11 19
ExecutionMode 4 OriginUpperLeft
Source GLSL 460
SourceExtension "GL_NV_mesh_shader"
Name 4 "main"
Name 8 "g"
Name 9 "B"
MemberName 9(B) 0 "f"
Name 11 ""
Name 17 "C"
MemberName 17(C) 0 "h"
Name 19 ""
Decorate 8(g) Location 8
MemberDecorate 9(B) 0 PerPrimitiveNV
Decorate 9(B) Block
Decorate 11 Location 0
MemberDecorate 17(C) 0 Flat
MemberDecorate 17(C) 0 Centroid
Decorate 17(C) Block
Decorate 19 Location 4
2: TypeVoid
3: TypeFunction 2
6: TypeFloat 32
7: TypePointer Output 6(float)
8(g): 7(ptr) Variable Output
9(B): TypeStruct 6(float)
10: TypePointer Input 9(B)
11: 10(ptr) Variable Input
12: TypeInt 32 1
13: 12(int) Constant 0
14: TypePointer Input 6(float)
17(C): TypeStruct 6(float)
18: TypePointer Input 17(C)
19: 18(ptr) Variable Input
4(main): 2 Function None 3
5: Label
15: 14(ptr) AccessChain 11 13
16: 6(float) Load 15
20: 14(ptr) AccessChain 19 13
21: 6(float) Load 20
22: 6(float) FAdd 16 21
Store 8(g) 22
Return
FunctionEnd

21
Test/spv.perprimitiveNV.frag Normal file
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@ -0,0 +1,21 @@
#version 460
#extension GL_NV_mesh_shader: require
layout(location=0)
in B {
perprimitiveNV float f;
};
layout(location=4)
in C {
flat centroid float h;
};
layout(location=8)
out float g;
void main()
{
g = f + h;
}

2
glslang/MachineIndependent/ParseHelper.cpp
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@ -4514,6 +4514,8 @@ void TParseContext::finish()
break;
#ifdef NV_EXTENSIONS
case EShLangTaskNV:
requireExtensions(getCurrentLoc(), 1, &E_GL_NV_mesh_shader, "task shaders");
break;
case EShLangMeshNV:
requireExtensions(getCurrentLoc(), 1, &E_GL_NV_mesh_shader, "mesh shaders");
break;

7
glslang/MachineIndependent/Versions.cpp
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@ -842,9 +842,12 @@ void TParseVersions::checkExtensionStage(const TSourceLoc& loc, const char * con
{
#ifdef NV_EXTENSIONS
// GL_NV_mesh_shader extension is only allowed in task/mesh shaders
if (strcmp(extension, "GL_NV_mesh_shader") == 0)
requireStage(loc, (EShLanguageMask)(EShLangTaskNVMask | EShLangMeshNVMask),
if (strcmp(extension, "GL_NV_mesh_shader") == 0) {
requireStage(loc, (EShLanguageMask)(EShLangTaskNVMask | EShLangMeshNVMask | EShLangFragmentMask),
"#extension GL_NV_mesh_shader");
profileRequires(loc, ECoreProfile, 450, 0, "#extension GL_NV_mesh_shader");
profileRequires(loc, EEsProfile, 320, 0, "#extension GL_NV_mesh_shader");
}
#endif
}

12
glslang/MachineIndependent/glslang.y
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@ -1157,30 +1157,30 @@ interpolation_qualifier
}
| PERPRIMITIVENV {
#ifdef NV_EXTENSIONS
// No need for profile version or extension check. Shader stage already checks both.
parseContext.globalCheck($1.loc, "perprimitiveNV");
parseContext.requireStage($1.loc, (EShLanguageMask)(EShLangFragmentMask | EShLangMeshNVMask), "perprimitiveNV");
parseContext.profileRequires($1.loc, ECoreProfile, 450, E_GL_NV_mesh_shader, "perprimitiveNV");
parseContext.profileRequires($1.loc, EEsProfile, 320, E_GL_NV_mesh_shader, "perprimitiveNV");
// Fragment shader stage doesn't check for extension. So we explicitly add below extension check.
if (parseContext.language == EShLangFragment)
parseContext.requireExtensions($1.loc, 1, &E_GL_NV_mesh_shader, "perprimitiveNV");
$$.init($1.loc);
$$.qualifier.perPrimitiveNV = true;
#endif
}
| PERVIEWNV {
#ifdef NV_EXTENSIONS
// No need for profile version or extension check. Shader stage already checks both.
parseContext.globalCheck($1.loc, "perviewNV");
parseContext.requireStage($1.loc, EShLangMeshNV, "perviewNV");
parseContext.profileRequires($1.loc, ECoreProfile, 450, E_GL_NV_mesh_shader, "perviewNV");
parseContext.profileRequires($1.loc, EEsProfile, 320, E_GL_NV_mesh_shader, "perviewNV");
$$.init($1.loc);
$$.qualifier.perViewNV = true;
#endif
}
| PERTASKNV {
#ifdef NV_EXTENSIONS
// No need for profile version or extension check. Shader stage already checks both.
parseContext.globalCheck($1.loc, "taskNV");
parseContext.requireStage($1.loc, (EShLanguageMask)(EShLangTaskNVMask | EShLangMeshNVMask), "taskNV");
parseContext.profileRequires($1.loc, ECoreProfile, 450, E_GL_NV_mesh_shader, "taskNV");
parseContext.profileRequires($1.loc, EEsProfile, 320, E_GL_NV_mesh_shader, "taskNV");
$$.init($1.loc);
$$.qualifier.perTaskNV = true;
#endif

22
glslang/MachineIndependent/glslang_tab.cpp
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@ -948,7 +948,7 @@ static const yytype_uint16 yyrline[] =
820, 825, 834, 834, 845, 849, 856, 863, 866, 873,
881, 901, 924, 939, 964, 975, 985, 995, 1005, 1014,
1017, 1021, 1025, 1030, 1038, 1043, 1048, 1053, 1058, 1067,
1078, 1105, 1114, 1121, 1128, 1139, 1148, 1158, 1168, 1178,
1078, 1105, 1114, 1121, 1128, 1139, 1148, 1158, 1170, 1179,
1191, 1197, 1200, 1207, 1211, 1215, 1223, 1232, 1235, 1246,
1249, 1252, 1256, 1260, 1264, 1268, 1274, 1278, 1290, 1304,
1309, 1315, 1321, 1328, 1334, 1339, 1344, 1349, 1359, 1369,
@ -5515,40 +5515,40 @@ yyreduce:
#line 1158 "MachineIndependent/glslang.y" /* yacc.c:1646 */
{
#ifdef NV_EXTENSIONS
// No need for profile version or extension check. Shader stage already checks both.
parseContext.globalCheck((yyvsp[0].lex).loc, "perprimitiveNV");
parseContext.requireStage((yyvsp[0].lex).loc, (EShLanguageMask)(EShLangFragmentMask | EShLangMeshNVMask), "perprimitiveNV");
parseContext.profileRequires((yyvsp[0].lex).loc, ECoreProfile, 450, E_GL_NV_mesh_shader, "perprimitiveNV");
parseContext.profileRequires((yyvsp[0].lex).loc, EEsProfile, 320, E_GL_NV_mesh_shader, "perprimitiveNV");
// Fragment shader stage doesn't check for extension. So we explicitly add below extension check.
if (parseContext.language == EShLangFragment)
parseContext.requireExtensions((yyvsp[0].lex).loc, 1, &E_GL_NV_mesh_shader, "perprimitiveNV");
(yyval.interm.type).init((yyvsp[0].lex).loc);
(yyval.interm.type).qualifier.perPrimitiveNV = true;
#endif
}
#line 5527 "MachineIndependent/glslang_tab.cpp" /* yacc.c:1646 */
#line 5529 "MachineIndependent/glslang_tab.cpp" /* yacc.c:1646 */
break;
case 138:
#line 1168 "MachineIndependent/glslang.y" /* yacc.c:1646 */
#line 1170 "MachineIndependent/glslang.y" /* yacc.c:1646 */
{
#ifdef NV_EXTENSIONS
// No need for profile version or extension check. Shader stage already checks both.
parseContext.globalCheck((yyvsp[0].lex).loc, "perviewNV");
parseContext.requireStage((yyvsp[0].lex).loc, EShLangMeshNV, "perviewNV");
parseContext.profileRequires((yyvsp[0].lex).loc, ECoreProfile, 450, E_GL_NV_mesh_shader, "perviewNV");
parseContext.profileRequires((yyvsp[0].lex).loc, EEsProfile, 320, E_GL_NV_mesh_shader, "perviewNV");
(yyval.interm.type).init((yyvsp[0].lex).loc);
(yyval.interm.type).qualifier.perViewNV = true;
#endif
}
#line 5542 "MachineIndependent/glslang_tab.cpp" /* yacc.c:1646 */
#line 5543 "MachineIndependent/glslang_tab.cpp" /* yacc.c:1646 */
break;
case 139:
#line 1178 "MachineIndependent/glslang.y" /* yacc.c:1646 */
#line 1179 "MachineIndependent/glslang.y" /* yacc.c:1646 */
{
#ifdef NV_EXTENSIONS
// No need for profile version or extension check. Shader stage already checks both.
parseContext.globalCheck((yyvsp[0].lex).loc, "taskNV");
parseContext.requireStage((yyvsp[0].lex).loc, (EShLanguageMask)(EShLangTaskNVMask | EShLangMeshNVMask), "taskNV");
parseContext.profileRequires((yyvsp[0].lex).loc, ECoreProfile, 450, E_GL_NV_mesh_shader, "taskNV");
parseContext.profileRequires((yyvsp[0].lex).loc, EEsProfile, 320, E_GL_NV_mesh_shader, "taskNV");
(yyval.interm.type).init((yyvsp[0].lex).loc);
(yyval.interm.type).qualifier.perTaskNV = true;
#endif

1
gtests/Spv.FromFile.cpp
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@ -528,6 +528,7 @@ INSTANTIATE_TEST_CASE_P(
"spv.meshShaderRedeclBuiltins.mesh",
"spv.meshShaderRedeclPerViewBuiltins.mesh",
"spv.meshTaskShader.task",
"spv.perprimitiveNV.frag",
})),
FileNameAsCustomTestSuffix
);