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Merge pull request #1595 from dgkoch/EXT_fragment_invocation_density

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Implement GL_EXT_fragment_invocation_density
This commit is contained in:
John Kessenich 2018-11-27 06:41:36 -07:00 committed by GitHub
commit d7baecfab7
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GPG Key ID: 4AEE18F83AFDEB23
17 changed files with 214 additions and 11 deletions
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3
SPIRV/GLSL.ext.EXT.h
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@ -28,10 +28,11 @@
#define GLSLextEXT_H
static const int GLSLextEXTVersion = 100;
static const int GLSLextEXTRevision = 1;
static const int GLSLextEXTRevision = 2;
static const char* const E_SPV_EXT_shader_stencil_export = "SPV_EXT_shader_stencil_export";
static const char* const E_SPV_EXT_shader_viewport_index_layer = "SPV_EXT_shader_viewport_index_layer";
static const char* const E_SPV_EXT_fragment_fully_covered = "SPV_EXT_fragment_fully_covered";
static const char* const E_SPV_EXT_fragment_invocation_density = "SPV_EXT_fragment_invocation_density";
#endif // #ifndef GLSLextEXT_H

10
SPIRV/GlslangToSpv.cpp
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@ -833,6 +833,16 @@ spv::BuiltIn TGlslangToSpvTraverser::TranslateBuiltInDecoration(glslang::TBuiltI
builder.addCapability(spv::CapabilityMultiView);
return spv::BuiltInViewIndex;
case glslang::EbvFragSizeEXT:
builder.addExtension(spv::E_SPV_EXT_fragment_invocation_density);
builder.addCapability(spv::CapabilityFragmentDensityEXT);
return spv::BuiltInFragSizeEXT;
case glslang::EbvFragInvocationCountEXT:
builder.addExtension(spv::E_SPV_EXT_fragment_invocation_density);
builder.addCapability(spv::CapabilityFragmentDensityEXT);
return spv::BuiltInFragInvocationCountEXT;
#ifdef NV_EXTENSIONS
case glslang::EbvViewportMaskNV:
if (!memberDeclaration) {

10
SPIRV/doc.cpp
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@ -388,12 +388,15 @@ const char* BuiltInString(int builtIn)
case BuiltInSecondaryViewportMaskNV: return "SecondaryViewportMaskNV";
case BuiltInPositionPerViewNV: return "PositionPerViewNV";
case BuiltInViewportMaskPerViewNV: return "ViewportMaskPerViewNV";
case BuiltInFragmentSizeNV: return "FragmentSizeNV";
case BuiltInInvocationsPerPixelNV: return "InvocationsPerPixelNV";
// case BuiltInFragmentSizeNV: return "FragmentSizeNV"; // superseded by BuiltInFragSizeEXT
// case BuiltInInvocationsPerPixelNV: return "InvocationsPerPixelNV"; // superseded by BuiltInFragInvocationCountEXT
case BuiltInBaryCoordNV: return "BaryCoordNV";
case BuiltInBaryCoordNoPerspNV: return "BaryCoordNoPerspNV";
#endif
case BuiltInFragSizeEXT: return "FragSizeEXT";
case BuiltInFragInvocationCountEXT: return "FragInvocationCountEXT";
case 5264: return "FullyCoveredEXT";
@ -897,8 +900,9 @@ const char* CapabilityString(int info)
case CapabilityComputeDerivativeGroupLinearNV: return "ComputeDerivativeGroupLinearNV";
case CapabilityFragmentBarycentricNV: return "FragmentBarycentricNV";
case CapabilityMeshShadingNV: return "MeshShadingNV";
case CapabilityShadingRateNV: return "ShadingRateNV";
// case CapabilityShadingRateNV: return "ShadingRateNV"; // superseded by CapabilityFragmentDensityEXT
#endif
case CapabilityFragmentDensityEXT: return "FragmentDensityEXT";
case CapabilityFragmentFullyCoveredEXT: return "FragmentFullyCoveredEXT";

45
Test/baseResults/spv.fragmentDensity-es.frag.out Normal file
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@ -0,0 +1,45 @@
spv.fragmentDensity-es.frag
// Module Version 10000
// Generated by (magic number): 80007
// Id's are bound by 18
Capability Shader
Capability FragmentDensityEXT
Extension "SPV_EXT_fragment_invocation_density"
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint Fragment 4 "main" 9 11 14 16
ExecutionMode 4 OriginUpperLeft
Source ESSL 310
SourceExtension "GL_EXT_fragment_invocation_density"
Name 4 "main"
Name 9 "FragSize"
Name 11 "gl_FragSizeEXT"
Name 14 "FragInvocationCount"
Name 16 "gl_FragInvocationCountEXT"
Decorate 9(FragSize) Location 0
Decorate 11(gl_FragSizeEXT) Flat
Decorate 11(gl_FragSizeEXT) BuiltIn FragSizeEXT
Decorate 14(FragInvocationCount) Location 2
Decorate 16(gl_FragInvocationCountEXT) Flat
Decorate 16(gl_FragInvocationCountEXT) BuiltIn FragInvocationCountEXT
2: TypeVoid
3: TypeFunction 2
6: TypeInt 32 1
7: TypeVector 6(int) 2
8: TypePointer Output 7(ivec2)
9(FragSize): 8(ptr) Variable Output
10: TypePointer Input 7(ivec2)
11(gl_FragSizeEXT): 10(ptr) Variable Input
13: TypePointer Output 6(int)
14(FragInvocationCount): 13(ptr) Variable Output
15: TypePointer Input 6(int)
16(gl_FragInvocationCountEXT): 15(ptr) Variable Input
4(main): 2 Function None 3
5: Label
12: 7(ivec2) Load 11(gl_FragSizeEXT)
Store 9(FragSize) 12
17: 6(int) Load 16(gl_FragInvocationCountEXT)
Store 14(FragInvocationCount) 17
Return
FunctionEnd

7
Test/baseResults/spv.fragmentDensity-neg.frag.out Normal file
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@ -0,0 +1,7 @@
spv.fragmentDensity-neg.frag
ERROR: 0:10: 'gl_FragSizeEXT' : required extension not requested: GL_EXT_fragment_invocation_density
ERROR: 0:11: 'gl_FragInvocationCountEXT' : required extension not requested: GL_EXT_fragment_invocation_density
ERROR: 2 compilation errors. No code generated.
SPIR-V is not generated for failed compile or link

48
Test/baseResults/spv.fragmentDensity.frag.out Normal file
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@ -0,0 +1,48 @@
spv.fragmentDensity.frag
// Module Version 10000
// Generated by (magic number): 80007
// Id's are bound by 21
Capability Shader
Capability FragmentDensityEXT
Extension "SPV_EXT_fragment_invocation_density"
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint Fragment 4 "main" 9 13 17 19
ExecutionMode 4 OriginUpperLeft
Source GLSL 450
SourceExtension "GL_EXT_fragment_invocation_density"
Name 4 "main"
Name 9 "FragSize"
Name 13 "gl_FragSizeEXT"
Name 17 "FragInvocationCount"
Name 19 "gl_FragInvocationCountEXT"
Decorate 9(FragSize) Location 0
Decorate 13(gl_FragSizeEXT) Flat
Decorate 13(gl_FragSizeEXT) BuiltIn FragSizeEXT
Decorate 17(FragInvocationCount) Location 2
Decorate 19(gl_FragInvocationCountEXT) Flat
Decorate 19(gl_FragInvocationCountEXT) BuiltIn FragInvocationCountEXT
2: TypeVoid
3: TypeFunction 2
6: TypeFloat 32
7: TypeVector 6(float) 2
8: TypePointer Output 7(fvec2)
9(FragSize): 8(ptr) Variable Output
10: TypeInt 32 1
11: TypeVector 10(int) 2
12: TypePointer Input 11(ivec2)
13(gl_FragSizeEXT): 12(ptr) Variable Input
16: TypePointer Output 10(int)
17(FragInvocationCount): 16(ptr) Variable Output
18: TypePointer Input 10(int)
19(gl_FragInvocationCountEXT): 18(ptr) Variable Input
4(main): 2 Function None 3
5: Label
14: 11(ivec2) Load 13(gl_FragSizeEXT)
15: 7(fvec2) ConvertSToF 14
Store 9(FragSize) 15
20: 10(int) Load 19(gl_FragInvocationCountEXT)
Store 17(FragInvocationCount) 20
Return
FunctionEnd

9
Test/baseResults/spv.fragmentDensity.vert.out Normal file
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@ -0,0 +1,9 @@
spv.fragmentDensity.vert
ERROR: 0:10: 'gl_FragSizeEXT' : undeclared identifier
ERROR: 0:10: 'assign' : cannot convert from ' temp float' to 'layout( location=0) smooth out highp 2-component vector of uint'
ERROR: 0:11: 'gl_FragInvocationCountEXT' : undeclared identifier
ERROR: 0:11: 'assign' : cannot convert from ' temp float' to 'layout( location=2) smooth out highp int'
ERROR: 4 compilation errors. No code generated.
SPIR-V is not generated for failed compile or link

6
Test/baseResults/spv.shadingRate.frag.out
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@ -4,7 +4,7 @@ spv.shadingRate.frag
// Id's are bound by 21
Capability Shader
Capability ShadingRateNV
Capability FragmentDensityEXT
Extension "SPV_NV_shading_rate"
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
@ -19,10 +19,10 @@ spv.shadingRate.frag
Name 19 "gl_InvocationsPerPixelNV"
Decorate 9(FragmentSize) Location 0
Decorate 13(gl_FragmentSizeNV) Flat
Decorate 13(gl_FragmentSizeNV) BuiltIn FragmentSizeNV
Decorate 13(gl_FragmentSizeNV) BuiltIn FragSizeEXT
Decorate 17(InvocationsPerPixel) Location 2
Decorate 19(gl_InvocationsPerPixelNV) Flat
Decorate 19(gl_InvocationsPerPixelNV) BuiltIn InvocationsPerPixelNV
Decorate 19(gl_InvocationsPerPixelNV) BuiltIn FragInvocationCountEXT
2: TypeVoid
3: TypeFunction 2
6: TypeFloat 32

11
Test/spv.fragmentDensity-es.frag Normal file
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@ -0,0 +1,11 @@
#version 310 es
#extension GL_EXT_fragment_invocation_density : require
layout (location = 0) out highp ivec2 FragSize;
layout (location = 2) out highp int FragInvocationCount;
void main () {
FragSize = gl_FragSizeEXT;
FragInvocationCount = gl_FragInvocationCountEXT;
}

12
Test/spv.fragmentDensity-neg.frag Normal file
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@ -0,0 +1,12 @@
#version 450
//make sure the builtins don't exist if the extension isn't enabled.
//#extension GL_EXT_fragment_invocation_density : require
layout (location = 0) out vec2 FragSize;
layout (location = 2) out int FragInvocationCount;
void main () {
FragSize = gl_FragSizeEXT;
FragInvocationCount = gl_FragInvocationCountEXT;
}

11
Test/spv.fragmentDensity.frag Normal file
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@ -0,0 +1,11 @@
#version 450
#extension GL_EXT_fragment_invocation_density : require
layout (location = 0) out vec2 FragSize;
layout (location = 2) out int FragInvocationCount;
void main () {
FragSize = gl_FragSizeEXT;
FragInvocationCount = gl_FragInvocationCountEXT;
}

12
Test/spv.fragmentDensity.vert Normal file
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@ -0,0 +1,12 @@
#version 450
// try using a fragment-only extension in a vertex shader
#extension GL_EXT_fragment_invocation_density : require
layout (location = 0) out uvec2 FragSize;
layout (location = 2) out int FragInvocationCount;
void main () {
FragSize = gl_FragSizeEXT;
FragInvocationCount = gl_FragInvocationCountEXT;
}

6
glslang/Include/BaseTypes.h
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@ -232,6 +232,9 @@ enum TBuiltInVariable {
EbvViewIndex,
EbvDeviceIndex,
EbvFragSizeEXT,
EbvFragInvocationCountEXT,
#ifdef NV_EXTENSIONS
EbvViewportMaskNV,
EbvSecondaryPositionNV,
@ -404,6 +407,9 @@ __inline const char* GetBuiltInVariableString(TBuiltInVariable v)
case EbvViewIndex: return "ViewIndex";
case EbvDeviceIndex: return "DeviceIndex";
case EbvFragSizeEXT: return "FragSizeEXT";
case EbvFragInvocationCountEXT: return "FragInvocationCountEXT";
#ifdef NV_EXTENSIONS
case EbvViewportMaskNV: return "ViewportMaskNV";
case EbvSecondaryPositionNV: return "SecondaryPositionNV";

28
glslang/MachineIndependent/Initialize.cpp
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@ -5939,6 +5939,12 @@ void TBuiltIns::initialize(int version, EProfile profile, const SpvVersion& spvV
"bool gl_HelperInvocation;" // needs qualifier fixed later
);
if (version >= 450)
stageBuiltins[EShLangFragment].append( // GL_EXT_fragment_invocation_density
"flat in ivec2 gl_FragSizeEXT;"
"flat in int gl_FragInvocationCountEXT;"
);
#ifdef AMD_EXTENSIONS
if (version >= 450)
stageBuiltins[EShLangFragment].append(
@ -5959,9 +5965,9 @@ void TBuiltIns::initialize(int version, EProfile profile, const SpvVersion& spvV
);
if (version >= 450)
stageBuiltins[EShLangFragment].append(
"flat in ivec2 gl_FragmentSizeNV;"
"flat in ivec2 gl_FragmentSizeNV;" // GL_NV_shading_rate_image
"flat in int gl_InvocationsPerPixelNV;"
"in vec3 gl_BaryCoordNV;"
"in vec3 gl_BaryCoordNV;" // GL_NV_fragment_shader_barycentric
"in vec3 gl_BaryCoordNoPerspNV;"
);
@ -6006,13 +6012,19 @@ void TBuiltIns::initialize(int version, EProfile profile, const SpvVersion& spvV
stageBuiltins[EShLangFragment].append(
"highp float gl_FragDepthEXT;" // GL_EXT_frag_depth
);
if (version >= 310)
stageBuiltins[EShLangFragment].append( // GL_EXT_fragment_invocation_density
"flat in ivec2 gl_FragSizeEXT;"
"flat in int gl_FragInvocationCountEXT;"
);
#ifdef NV_EXTENSIONS
if (version >= 320)
stageBuiltins[EShLangFragment].append(
stageBuiltins[EShLangFragment].append( // GL_NV_shading_rate_image
"flat in ivec2 gl_FragmentSizeNV;"
"flat in int gl_InvocationsPerPixelNV;"
);
if (version >= 320)
if (version >= 320)
stageBuiltins[EShLangFragment].append(
"in vec3 gl_BaryCoordNV;"
"in vec3 gl_BaryCoordNoPerspNV;"
@ -8342,6 +8354,14 @@ void TBuiltIns::identifyBuiltIns(int version, EProfile profile, const SpvVersion
}
#endif
if ((profile != EEsProfile && version >= 450) ||
(profile == EEsProfile && version >= 310)) {
symbolTable.setVariableExtensions("gl_FragSizeEXT", 1, &E_GL_EXT_fragment_invocation_density);
symbolTable.setVariableExtensions("gl_FragInvocationCountEXT", 1, &E_GL_EXT_fragment_invocation_density);
BuiltInVariable("gl_FragSizeEXT", EbvFragSizeEXT, symbolTable);
BuiltInVariable("gl_FragInvocationCountEXT", EbvFragInvocationCountEXT, symbolTable);
}
symbolTable.setVariableExtensions("gl_FragDepthEXT", 1, &E_GL_EXT_frag_depth);
if (profile == EEsProfile && version < 320) {

2
glslang/MachineIndependent/Versions.cpp
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@ -205,6 +205,7 @@ void TParseVersions::initializeExtensionBehavior()
extensionBehavior[E_GL_EXT_nonuniform_qualifier] = EBhDisable;
extensionBehavior[E_GL_EXT_samplerless_texture_functions] = EBhDisable;
extensionBehavior[E_GL_EXT_scalar_block_layout] = EBhDisable;
extensionBehavior[E_GL_EXT_fragment_invocation_density] = EBhDisable;
extensionBehavior[E_GL_EXT_shader_16bit_storage] = EBhDisable;
extensionBehavior[E_GL_EXT_shader_8bit_storage] = EBhDisable;
@ -380,6 +381,7 @@ void TParseVersions::getPreamble(std::string& preamble)
"#define GL_EXT_shader_8bit_storage 1\n"
"#define GL_EXT_samplerless_texture_functions 1\n"
"#define GL_EXT_scalar_block_layout 1\n"
"#define GL_EXT_fragment_invocation_density 1\n"
// GL_KHR_shader_subgroup
"#define GL_KHR_shader_subgroup_basic 1\n"

1
glslang/MachineIndependent/Versions.h
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@ -167,6 +167,7 @@ const char* const E_GL_EXT_control_flow_attributes = "GL_EXT_control_fl
const char* const E_GL_EXT_nonuniform_qualifier = "GL_EXT_nonuniform_qualifier";
const char* const E_GL_EXT_samplerless_texture_functions = "GL_EXT_samplerless_texture_functions";
const char* const E_GL_EXT_scalar_block_layout = "GL_EXT_scalar_block_layout";
const char* const E_GL_EXT_fragment_invocation_density = "GL_EXT_fragment_invocation_density";
// Arrays of extensions for the above viewportEXTs duplications

4
gtests/Spv.FromFile.cpp
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@ -271,6 +271,10 @@ INSTANTIATE_TEST_CASE_P(
"spv.flowControl.frag",
"spv.forLoop.frag",
"spv.forwardFun.frag",
"spv.fragmentDensity.frag",
"spv.fragmentDensity.vert",
"spv.fragmentDensity-es.frag",
"spv.fragmentDensity-neg.frag",
"spv.fullyCovered.frag",
"spv.functionCall.frag",
"spv.functionNestedOpaque.vert",