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Add support for SPV_NV_sample_mask_override_coverage

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This commit is contained in:
chaoc 2016-12-19 16:29:34 -08:00
parent 7583ed73ef
commit 0ad6a4e60d
14 changed files with 215 additions and 1 deletions
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6
CMakeLists.txt
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@ -3,6 +3,8 @@ set_property(GLOBAL PROPERTY USE_FOLDERS ON)
option(ENABLE_AMD_EXTENSIONS "Enables support of AMD-specific extensions" ON)
option(ENABLE_NV_EXTENSIONS "Enables support of Nvidia-specific extensions" ON)
enable_testing()
set(CMAKE_INSTALL_PREFIX "install" CACHE STRING "prefix")
@ -13,6 +15,10 @@ if(ENABLE_AMD_EXTENSIONS)
add_definitions(-DAMD_EXTENSIONS)
endif(ENABLE_AMD_EXTENSIONS)
if(ENABLE_NV_EXTENSIONS)
add_definitions(-DNV_EXTENSIONS)
endif(ENABLE_NV_EXTENSIONS)
if(WIN32)
set(CMAKE_DEBUG_POSTFIX "d")
include(ChooseMSVCCRT.cmake)

5
SPIRV/CMakeLists.txt
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@ -33,6 +33,11 @@ if(ENABLE_AMD_EXTENSIONS)
GLSL.ext.AMD.h)
endif(ENABLE_AMD_EXTENSIONS)
if(ENABLE_NV_EXTENSIONS)
set(HEADERS
GLSL.ext.NV.h)
endif(ENABLE_NV_EXTENSIONS)
add_library(SPIRV STATIC ${SOURCES} ${HEADERS})
set_property(TARGET SPIRV PROPERTY FOLDER glslang)

42
SPIRV/GLSL.ext.NV.h Normal file
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@ -0,0 +1,42 @@
/*
** Copyright (c) 2014-2016 The Khronos Group Inc.
**
** Permission is hereby granted, free of charge, to any person obtaining a copy
** of this software and/or associated documentation files (the "Materials"),
** to deal in the Materials without restriction, including without limitation
** the rights to use, copy, modify, merge, publish, distribute, sublicense,
** and/or sell copies of the Materials, and to permit persons to whom the
** Materials are furnished to do so, subject to the following conditions:
**
** The above copyright notice and this permission notice shall be included in
** all copies or substantial portions of the Materials.
**
** MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS KHRONOS
** STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS SPECIFICATIONS AND
** HEADER INFORMATION ARE LOCATED AT https://www.khronos.org/registry/
**
** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
** OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
** THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
** FROM,OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE USE OR OTHER DEALINGS
** IN THE MATERIALS.
*/
#ifndef GLSLextNV_H
#define GLSLextNV_H
enum BuiltIn;
enum Decoration;
enum Op;
static const int GLSLextNVVersion = 100;
static const int GLSLextNVRevision = 1;
//SPV_NV_sample_mask_override_coverage
const char* const E_SPV_NV_sample_mask_override_coverage = "SPV_NV_sample_mask_override_coverage";
static const Decoration OverrideCoverageNV = static_cast<Decoration>(5248);
#endif // #ifndef GLSLextNV_H

19
SPIRV/GlslangToSpv.cpp
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@ -47,6 +47,9 @@ namespace spv {
#ifdef AMD_EXTENSIONS
#include "GLSL.ext.AMD.h"
#endif
#ifdef NV_EXTENSIONS
#include "GLSL.ext.NV.h"
#endif
}
// Glslang includes
@ -436,6 +439,7 @@ spv::Decoration TranslateNoContractionDecoration(const glslang::TQualifier& qual
return spv::DecorationMax;
}
// Translate a glslang built-in variable to a SPIR-V built in decoration. Also generate
// associated capabilities when required. For some built-in variables, a capability
// is generated only when using the variable in an executable instruction, but not when
@ -4721,6 +4725,21 @@ spv::Id TGlslangToSpvTraverser::getSymbolId(const glslang::TIntermSymbol* symbol
if (builtIn != spv::BuiltInMax)
addDecoration(id, spv::DecorationBuiltIn, (int)builtIn);
#ifdef NV_EXTENSIONS
if (builtIn == spv::BuiltInSampleMask) {
spv::Decoration decoration;
// GL_NV_sample_mask_override_coverage extension
if (glslangIntermediate->getLayoutOverrideCoverage())
decoration = (spv::Decoration)spv::OverrideCoverageNV;
else
decoration = (spv::Decoration)spv::DecorationMax;
addDecoration(id, decoration);
if (decoration != spv::DecorationMax) {
builder.addExtension(spv::E_SPV_NV_sample_mask_override_coverage);
}
}
#endif
return id;
}

33
SPIRV/disassemble.cpp
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@ -53,6 +53,9 @@ namespace spv {
#include "GLSL.std.450.h"
#ifdef AMD_EXTENSIONS
#include "GLSL.ext.AMD.h"
#endif
#ifdef NV_EXTENSIONS
#include "GLSL.ext.NV.h"
#endif
}
}
@ -64,6 +67,10 @@ namespace spv {
static const char* GLSLextAMDGetDebugNames(const char*, unsigned);
#endif
#ifdef NV_EXTENSIONS
static const char* GLSLextNVGetDebugNames(const char*, unsigned);
#endif
static void Kill(std::ostream& out, const char* message)
{
out << std::endl << "Disassembly failed: " << message << std::endl;
@ -75,6 +82,9 @@ enum ExtInstSet {
GLSL450Inst,
#ifdef AMD_EXTENSIONS
GLSLextAMDInst,
#endif
#ifdef NV_EXTENSIONS
GLSLextNVInst,
#endif
OpenCLExtInst,
};
@ -469,6 +479,10 @@ void SpirvStream::disassembleInstruction(Id resultId, Id /*typeId*/, Op opCode,
strcmp(spv::E_SPV_AMD_shader_explicit_vertex_parameter, name) == 0 ||
strcmp(spv::E_SPV_AMD_gcn_shader, name) == 0) {
extInstSet = GLSLextAMDInst;
#endif
#ifdef NV_EXTENSIONS
} else if (strcmp(spv::E_SPV_NV_sample_mask_override_coverage, name) == 0) {
extInstSet = GLSLextNVInst;
#endif
}
unsigned entrypoint = stream[word - 1];
@ -479,6 +493,11 @@ void SpirvStream::disassembleInstruction(Id resultId, Id /*typeId*/, Op opCode,
#ifdef AMD_EXTENSIONS
} else if (extInstSet == GLSLextAMDInst) {
out << "(" << GLSLextAMDGetDebugNames(name, entrypoint) << ")";
#endif
#ifdef NV_EXTENSIONS
}
else if (extInstSet == GLSLextNVInst) {
out << "(" << GLSLextNVGetDebugNames(name, entrypoint) << ")";
#endif
}
}
@ -631,6 +650,20 @@ static const char* GLSLextAMDGetDebugNames(const char* name, unsigned entrypoint
}
#endif
#ifdef NV_EXTENSIONS
static const char* GLSLextNVGetDebugNames(const char* name, unsigned entrypoint)
{
if (strcmp(name, spv::E_SPV_NV_sample_mask_override_coverage) == 0) {
switch (entrypoint) {
case OverrideCoverageNV: return "OverrideCoverageNV";
default: return "Bad";
}
}
return "Bad";
}
#endif
void Disassemble(std::ostream& out, const std::vector<unsigned int>& stream)
{
SpirvStream SpirvStream(out, stream);

6
SPIRV/doc.cpp
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@ -50,6 +50,9 @@ namespace spv {
// Include C-based headers that don't have a namespace
#ifdef AMD_EXTENSIONS
#include "GLSL.ext.AMD.h"
#endif
#ifdef NV_EXTENSIONS
#include "GLSL.ext.NV.h"
#endif
}
}
@ -255,6 +258,9 @@ const char* DecorationString(int decoration)
#ifdef AMD_EXTENSIONS
case 4999: return "ExplicitInterpAMD";
#endif
#ifdef NV_EXTENSIONS
case 5248: return "OverrideCoverageNV";
#endif
}
}

42
Test/baseResults/spv.sampleMaskOverrideCoverage.frag.out Normal file
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@ -0,0 +1,42 @@
spv.sampleMaskOverrideCoverage.frag
Warning, version 450 is not yet complete; most version-specific features are present, but some are missing.
// Module Version 10000
// Generated by (magic number): 80001
// Id's are bound by 20
Capability Shader
Capability SampleRateShading
Extension "SPV_NV_sample_mask_override_coverage"
1: ExtInstImport "GLSL.std.450"
MemoryModel Logical GLSL450
EntryPoint Fragment 4 "main" 11 19
ExecutionMode 4 OriginUpperLeft
Source GLSL 450
SourceExtension "GL_NV_sample_mask_override_coverage"
Name 4 "main"
Name 11 "gl_SampleMask"
Name 19 "color"
Decorate 11(gl_SampleMask) BuiltIn SampleMask
Decorate 11(gl_SampleMask) OverrideCoverageNV
2: TypeVoid
3: TypeFunction 2
6: TypeInt 32 1
7: TypeInt 32 0
8: 7(int) Constant 1
9: TypeArray 6(int) 8
10: TypePointer Output 9
11(gl_SampleMask): 10(ptr) Variable Output
12: 6(int) Constant 0
13: 6(int) Constant 4294967295
14: TypePointer Output 6(int)
16: TypeFloat 32
17: TypeVector 16(float) 4
18: TypePointer Input 17(fvec4)
19(color): 18(ptr) Variable Input
4(main): 2 Function None 3
5: Label
15: 14(ptr) AccessChain 11(gl_SampleMask) 12
Store 15 13
Return
FunctionEnd

7
Test/spv.sampleMaskOverrideCoverage.frag Normal file
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@ -0,0 +1,7 @@
#version 450
#extension GL_NV_sample_mask_override_coverage : enable
in vec4 color;
layout(override_coverage) out int gl_SampleMask[];
void main() {
gl_SampleMask[0] = int(0xFFFFFFFF);
}

12
glslang/Include/Types.h
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@ -920,6 +920,10 @@ struct TShaderQualifiers {
TLayoutDepth layoutDepth;
bool blendEquation; // true if any blend equation was specified
#ifdef NV_EXTENSIONS
bool layoutOverrideCoverage; // true if layout override_coverage set
#endif
void init()
{
geometry = ElgNone;
@ -939,6 +943,9 @@ struct TShaderQualifiers {
earlyFragmentTests = false;
layoutDepth = EldNone;
blendEquation = false;
#ifdef NV_EXTENSIONS
layoutOverrideCoverage = false;
#endif
}
// Merge in characteristics from the 'src' qualifier. They can override when
@ -975,6 +982,10 @@ struct TShaderQualifiers {
layoutDepth = src.layoutDepth;
if (src.blendEquation)
blendEquation = src.blendEquation;
#ifdef NV_EXTENSIONS
if (src.layoutOverrideCoverage)
layoutOverrideCoverage = src.layoutOverrideCoverage;
#endif
}
};
@ -1525,6 +1536,7 @@ public:
p += snprintf(p, end - p, "constant_id=%d ", qualifier.layoutSpecConstantId);
if (qualifier.layoutPushConstant)
p += snprintf(p, end - p, "push_constant ");
p += snprintf(p, end - p, ") ");
}
}

20
glslang/MachineIndependent/ParseHelper.cpp
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@ -3304,6 +3304,9 @@ TSymbol* TParseContext::redeclareBuiltinVariable(const TSourceLoc& loc, const TS
identifier == "gl_BackSecondaryColor" ||
identifier == "gl_SecondaryColor" ||
(identifier == "gl_Color" && language == EShLangFragment) ||
#ifdef NV_EXTENSIONS
identifier == "gl_SampleMask" ||
#endif
identifier == "gl_TexCoord") {
// Find the existing symbol, if any.
@ -3381,8 +3384,16 @@ TSymbol* TParseContext::redeclareBuiltinVariable(const TSourceLoc& loc, const TS
if (! intermediate.setDepth(publicType.layoutDepth))
error(loc, "all redeclarations must use the same depth layout on", "redeclaration", symbol->getName().c_str());
}
}
#ifdef NV_EXTENSIONS
else if (identifier == "gl_SampleMask") {
if (!publicType.layoutOverrideCoverage) {
error(loc, "redeclaration only allowed for override_coverage layout", "redeclaration", symbol->getName().c_str());
}
intermediate.setLayoutOverrideCoverage();
}
#endif
// TODO: semantics quality: separate smooth from nothing declared, then use IsInterpolation for several tests above
return symbol;
@ -4005,6 +4016,13 @@ void TParseContext::setLayoutQualifier(const TSourceLoc& loc, TPublicType& publi
error(loc, "unknown blend equation", "blend_support", "");
return;
}
#ifdef NV_EXTENSIONS
if (id == "override_coverage") {
requireExtensions(loc, 1, &E_GL_NV_sample_mask_override_coverage, "sample mask override coverage");
publicType.shaderQualifiers.layoutOverrideCoverage = true;
return;
}
#endif
}
error(loc, "unrecognized layout identifier, or qualifier requires assignment (e.g., binding = 4)", id.c_str(), "");
}

8
glslang/MachineIndependent/Versions.cpp
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@ -195,6 +195,10 @@ void TParseVersions::initializeExtensionBehavior()
extensionBehavior[E_GL_AMD_gpu_shader_half_float] = EBhDisable;
#endif
#ifdef NV_EXTENSIONS
extensionBehavior[E_GL_NV_sample_mask_override_coverage] = EBhDisable;
#endif
// AEP
extensionBehavior[E_GL_ANDROID_extension_pack_es31a] = EBhDisable;
extensionBehavior[E_GL_KHR_blend_equation_advanced] = EBhDisable;
@ -302,6 +306,10 @@ void TParseVersions::getPreamble(std::string& preamble)
"#define GL_AMD_gcn_shader 1\n"
"#define GL_AMD_gpu_shader_half_float 1\n"
#endif
#ifdef NV_EXTENSIONS
"#define GL_NV_sample_mask_override_coverage 1\n"
#endif
;
}

3
glslang/MachineIndependent/Versions.h
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@ -142,6 +142,9 @@ const char* const E_GL_AMD_shader_explicit_vertex_parameter = "GL_AMD_shader
const char* const E_GL_AMD_gcn_shader = "GL_AMD_gcn_shader";
const char* const E_GL_AMD_gpu_shader_half_float = "GL_AMD_gpu_shader_half_float";
#endif
#ifdef NV_EXTENSIONS
const char* const E_GL_NV_sample_mask_override_coverage = "GL_NV_sample_mask_override_coverage";
#endif
// AEP
const char* const E_GL_ANDROID_extension_pack_es31a = "GL_ANDROID_extension_pack_es31a";

12
glslang/MachineIndependent/localintermediate.h
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@ -151,6 +151,9 @@ public:
shiftUboBinding(0),
autoMapBindings(false),
flattenUniformArrays(false),
#ifdef NV_EXTENSIONS
layoutOverrideCoverage(false),
#endif
useUnknownFormat(false)
{
localSize[0] = 1;
@ -387,6 +390,11 @@ public:
static int getBaseAlignment(const TType&, int& size, int& stride, bool std140, bool rowMajor);
bool promote(TIntermOperator*);
#ifdef NV_EXTENSIONS
void setLayoutOverrideCoverage() { layoutOverrideCoverage = true; }
bool getLayoutOverrideCoverage() const { return layoutOverrideCoverage; }
#endif
protected:
TIntermSymbol* addSymbol(int Id, const TString&, const TType&, const TConstUnionArray&, TIntermTyped* subtree, const TSourceLoc&);
void error(TInfoSink& infoSink, const char*);
@ -447,6 +455,10 @@ protected:
bool xfbMode;
bool multiStream;
#ifdef NV_EXTENSIONS
bool layoutOverrideCoverage;
#endif
typedef std::list<TCall> TGraph;
TGraph callGraph;

1
gtests/Spv.FromFile.cpp
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@ -240,6 +240,7 @@ INSTANTIATE_TEST_CASE_P(
"spv.precision.frag",
"spv.prepost.frag",
"spv.qualifiers.vert",
"spv.sampleMaskOverrideCoverage.frag",
"spv.shaderBallot.comp",
"spv.shaderDrawParams.vert",
"spv.shaderGroupVote.comp",