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Clean up iomapper.h to make it suitable as a public API

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Remove the dependency on LiveTraverser.h, which transitively includes
localintermediate.h. As a result, some things have been moved from
iomapper.h to iomapper.cpp, specifically the TVarEntry type and the
constructor and destructor of TGlslIoMapper.
This commit is contained in:
Arcady Goldmints-Orlov 2024-07-30 21:51:18 -04:00 committed by arcady-lunarg
parent 71c24c1e4b
commit 31584ef79d
4 changed files with 140 additions and 131 deletions
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2
glslang/CInterface/glslang_c_interface.cpp
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@ -37,7 +37,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "glslang/Public/ShaderLang.h"
#include "glslang/Include/ShHandle.h"
#include "glslang/Include/BaseTypes.h"
#include "glslang/Include/ResourceLimits.h"
#include "glslang/Include/Types.h"
#include "glslang/MachineIndependent/iomapper.h"
#include "glslang/MachineIndependent/Versions.h"
#include "glslang/MachineIndependent/localintermediate.h"

133
glslang/MachineIndependent/iomapper.cpp
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@ -39,6 +39,7 @@
#include "gl_types.h"
#include "iomapper.h"
#include "LiveTraverser.h"
#include "SymbolTable.h"
//
@ -60,6 +61,108 @@
namespace glslang {
struct TVarEntryInfo {
long long id;
TIntermSymbol* symbol;
bool live;
bool upgradedToPushConstant;
int newBinding;
int newSet;
int newLocation;
int newComponent;
int newIndex;
EShLanguage stage;
void clearNewAssignments() {
upgradedToPushConstant = false;
newBinding = -1;
newSet = -1;
newLocation = -1;
newComponent = -1;
newIndex = -1;
}
struct TOrderById {
inline bool operator()(const TVarEntryInfo& l, const TVarEntryInfo& r) { return l.id < r.id; }
};
struct TOrderByPriority {
// ordering:
// 1) has both binding and set
// 2) has binding but no set
// 3) has no binding but set
// 4) has no binding and no set
inline bool operator()(const TVarEntryInfo& l, const TVarEntryInfo& r) {
const TQualifier& lq = l.symbol->getQualifier();
const TQualifier& rq = r.symbol->getQualifier();
// simple rules:
// has binding gives 2 points
// has set gives 1 point
// who has the most points is more important.
int lPoints = (lq.hasBinding() ? 2 : 0) + (lq.hasSet() ? 1 : 0);
int rPoints = (rq.hasBinding() ? 2 : 0) + (rq.hasSet() ? 1 : 0);
if (lPoints == rPoints)
return l.id < r.id;
return lPoints > rPoints;
}
};
struct TOrderByPriorityAndLive {
// ordering:
// 1) do live variables first
// 2) has both binding and set
// 3) has binding but no set
// 4) has no binding but set
// 5) has no binding and no set
inline bool operator()(const TVarEntryInfo& l, const TVarEntryInfo& r) {
const TQualifier& lq = l.symbol->getQualifier();
const TQualifier& rq = r.symbol->getQualifier();
// simple rules:
// has binding gives 2 points
// has set gives 1 point
// who has the most points is more important.
int lPoints = (lq.hasBinding() ? 2 : 0) + (lq.hasSet() ? 1 : 0);
int rPoints = (rq.hasBinding() ? 2 : 0) + (rq.hasSet() ? 1 : 0);
if (l.live != r.live)
return l.live > r.live;
if (lPoints != rPoints)
return lPoints > rPoints;
return l.id < r.id;
}
};
};
// override function "operator=", if a vector<const _Kty, _Ty> being sort,
// when use vc++, the sort function will call :
// pair& operator=(const pair<_Other1, _Other2>& _Right)
// {
// first = _Right.first;
// second = _Right.second;
// return (*this);
// }
// that will make a const type handing on left.
// override this function can avoid a compiler error.
// In the future, if the vc++ compiler can handle such a situation,
// this part of the code will be removed.
struct TVarLivePair : std::pair<const TString, TVarEntryInfo> {
TVarLivePair(const std::pair<const TString, TVarEntryInfo>& _Right) : pair(_Right.first, _Right.second) {}
TVarLivePair& operator=(const TVarLivePair& _Right) {
const_cast<TString&>(first) = _Right.first;
second = _Right.second;
return (*this);
}
TVarLivePair(const TVarLivePair& src) : pair(src) { }
};
typedef std::vector<TVarLivePair> TVarLiveVector;
class TVarGatherTraverser : public TLiveTraverser {
public:
TVarGatherTraverser(const TIntermediate& i, bool traverseDeadCode, TVarLiveMap& inList, TVarLiveMap& outList, TVarLiveMap& uniformList)
@ -1497,6 +1600,36 @@ bool TIoMapper::addStage(EShLanguage stage, TIntermediate& intermediate, TInfoSi
return !hadError;
}
TGlslIoMapper::TGlslIoMapper() {
memset(inVarMaps, 0, sizeof(TVarLiveMap*) * (EShLangCount + 1));
memset(outVarMaps, 0, sizeof(TVarLiveMap*) * (EShLangCount + 1));
memset(uniformVarMap, 0, sizeof(TVarLiveMap*) * (EShLangCount + 1));
memset(intermediates, 0, sizeof(TIntermediate*) * (EShLangCount + 1));
profile = ENoProfile;
version = 0;
autoPushConstantMaxSize = 128;
autoPushConstantBlockPacking = ElpStd430;
}
TGlslIoMapper::~TGlslIoMapper() {
for (size_t stage = 0; stage < EShLangCount; stage++) {
if (inVarMaps[stage] != nullptr) {
delete inVarMaps[stage];
inVarMaps[stage] = nullptr;
}
if (outVarMaps[stage] != nullptr) {
delete outVarMaps[stage];
outVarMaps[stage] = nullptr;
}
if (uniformVarMap[stage] != nullptr) {
delete uniformVarMap[stage];
uniformVarMap[stage] = nullptr;
}
if (intermediates[stage] != nullptr)
intermediates[stage] = nullptr;
}
}
// Map I/O variables to provided offsets, and make bindings for
// unbound but live variables.
//

133
glslang/MachineIndependent/iomapper.h
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@ -37,7 +37,6 @@
#define _IOMAPPER_INCLUDED
#include <cstdint>
#include "LiveTraverser.h"
#include <unordered_map>
#include <unordered_set>
//
@ -49,84 +48,7 @@ class TInfoSink;
namespace glslang {
class TIntermediate;
struct TVarEntryInfo {
long long id;
TIntermSymbol* symbol;
bool live;
bool upgradedToPushConstant;
int newBinding;
int newSet;
int newLocation;
int newComponent;
int newIndex;
EShLanguage stage;
void clearNewAssignments() {
upgradedToPushConstant = false;
newBinding = -1;
newSet = -1;
newLocation = -1;
newComponent = -1;
newIndex = -1;
}
struct TOrderById {
inline bool operator()(const TVarEntryInfo& l, const TVarEntryInfo& r) { return l.id < r.id; }
};
struct TOrderByPriority {
// ordering:
// 1) has both binding and set
// 2) has binding but no set
// 3) has no binding but set
// 4) has no binding and no set
inline bool operator()(const TVarEntryInfo& l, const TVarEntryInfo& r) {
const TQualifier& lq = l.symbol->getQualifier();
const TQualifier& rq = r.symbol->getQualifier();
// simple rules:
// has binding gives 2 points
// has set gives 1 point
// who has the most points is more important.
int lPoints = (lq.hasBinding() ? 2 : 0) + (lq.hasSet() ? 1 : 0);
int rPoints = (rq.hasBinding() ? 2 : 0) + (rq.hasSet() ? 1 : 0);
if (lPoints == rPoints)
return l.id < r.id;
return lPoints > rPoints;
}
};
struct TOrderByPriorityAndLive {
// ordering:
// 1) do live variables first
// 2) has both binding and set
// 3) has binding but no set
// 4) has no binding but set
// 5) has no binding and no set
inline bool operator()(const TVarEntryInfo& l, const TVarEntryInfo& r) {
const TQualifier& lq = l.symbol->getQualifier();
const TQualifier& rq = r.symbol->getQualifier();
// simple rules:
// has binding gives 2 points
// has set gives 1 point
// who has the most points is more important.
int lPoints = (lq.hasBinding() ? 2 : 0) + (lq.hasSet() ? 1 : 0);
int rPoints = (rq.hasBinding() ? 2 : 0) + (rq.hasSet() ? 1 : 0);
if (l.live != r.live)
return l.live > r.live;
if (lPoints != rPoints)
return lPoints > rPoints;
return l.id < r.id;
}
};
};
struct TVarEntryInfo;
// Base class for shared TIoMapResolver services, used by several derivations.
struct TDefaultIoResolverBase : public glslang::TIoMapResolver {
public:
@ -267,29 +189,6 @@ protected:
typedef std::map<TString, TVarEntryInfo> TVarLiveMap;
// override function "operator=", if a vector<const _Kty, _Ty> being sort,
// when use vc++, the sort function will call :
// pair& operator=(const pair<_Other1, _Other2>& _Right)
// {
// first = _Right.first;
// second = _Right.second;
// return (*this);
// }
// that will make a const type handing on left.
// override this function can avoid a compiler error.
// In the future, if the vc++ compiler can handle such a situation,
// this part of the code will be removed.
struct TVarLivePair : std::pair<const TString, TVarEntryInfo> {
TVarLivePair(const std::pair<const TString, TVarEntryInfo>& _Right) : pair(_Right.first, _Right.second) {}
TVarLivePair& operator=(const TVarLivePair& _Right) {
const_cast<TString&>(first) = _Right.first;
second = _Right.second;
return (*this);
}
TVarLivePair(const TVarLivePair& src) : pair(src) { }
};
typedef std::vector<TVarLivePair> TVarLiveVector;
// I/O mapper
class TIoMapper {
public:
@ -303,34 +202,8 @@ public:
// I/O mapper for GLSL
class TGlslIoMapper : public TIoMapper {
public:
TGlslIoMapper() {
memset(inVarMaps, 0, sizeof(TVarLiveMap*) * (EShLangCount + 1));
memset(outVarMaps, 0, sizeof(TVarLiveMap*) * (EShLangCount + 1));
memset(uniformVarMap, 0, sizeof(TVarLiveMap*) * (EShLangCount + 1));
memset(intermediates, 0, sizeof(TIntermediate*) * (EShLangCount + 1));
profile = ENoProfile;
version = 0;
autoPushConstantMaxSize = 128;
autoPushConstantBlockPacking = ElpStd430;
}
virtual ~TGlslIoMapper() {
for (size_t stage = 0; stage < EShLangCount; stage++) {
if (inVarMaps[stage] != nullptr) {
delete inVarMaps[stage];
inVarMaps[stage] = nullptr;
}
if (outVarMaps[stage] != nullptr) {
delete outVarMaps[stage];
outVarMaps[stage] = nullptr;
}
if (uniformVarMap[stage] != nullptr) {
delete uniformVarMap[stage];
uniformVarMap[stage] = nullptr;
}
if (intermediates[stage] != nullptr)
intermediates[stage] = nullptr;
}
}
TGlslIoMapper();
virtual ~TGlslIoMapper();
// If set, the uniform block with the given name will be changed to be backed by
// push_constant if it's size is <= maxSize
void setAutoPushConstantBlock(const char* name, unsigned int maxSize, TLayoutPacking packing) {

1
gtests/GlslMapIO.FromFile.cpp
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@ -39,6 +39,7 @@
#include "TestFixture.h"
#include "glslang/MachineIndependent/localintermediate.h"
#include "glslang/MachineIndependent/iomapper.h"
#include "glslang/MachineIndependent/reflection.h"