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#ifndef _GLUVARTYPE_HPP
#define _GLUVARTYPE_HPP
/*-------------------------------------------------------------------------
* drawElements Quality Program OpenGL ES Utilities
* ------------------------------------------------
*
* Copyright 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*//*!
* \file
* \brief Shader variable type.
*//*--------------------------------------------------------------------*/
#include "tcuDefs.hpp"
#include "gluShaderUtil.hpp"
#include <vector>
#include <string>
#include <ostream>
namespace glu
{
class StructType;
/*--------------------------------------------------------------------*//*!
* \brief Shader variable type.
*
* Variable type represents data type. No storage qualifiers are supported
* since they are associated to a declaration, not to the variable type.
*
* \note Structs are handled using struct pointers since it is often desirable
* to maintain unique list of struct declarations.
*//*--------------------------------------------------------------------*/
class VarType
{
public:
VarType (void);
VarType (const VarType& other);
VarType (DataType basicType, Precision precision); //!< Basic type constructor.
VarType (const VarType& elementType, int arraySize); //!< Array type constructor.
explicit VarType (const StructType* structPtr); //!< Struct type constructor.
~VarType (void);
bool isBasicType (void) const { return m_type == VARTYPE_BASIC; }
bool isArrayType (void) const { return m_type == VARTYPE_ARRAY; }
bool isStructType (void) const { return m_type == VARTYPE_STRUCT; }
DataType getBasicType (void) const { DE_ASSERT(isBasicType()); return m_data.basic.type; }
Precision getPrecision (void) const { DE_ASSERT(isBasicType()); return m_data.basic.precision; }
const VarType& getElementType (void) const { DE_ASSERT(isArrayType()); return *m_data.array.elementType; }
int getArraySize (void) const { DE_ASSERT(isArrayType()); return m_data.array.size; }
const StructType* getStructPtr (void) const { DE_ASSERT(isStructType()); return m_data.structPtr; }
int getScalarSize (void) const;
VarType& operator= (const VarType& other);
bool operator== (const VarType& other) const;
bool operator!= (const VarType& other) const;
enum
{
UNSIZED_ARRAY = -1 //!< Array length for unsized arrays.
};
private:
enum Type
{
VARTYPE_BASIC,
VARTYPE_ARRAY,
VARTYPE_STRUCT,
VARTYPE_LAST
};
Type m_type;
union Data
{
// TYPE_BASIC
struct
{
DataType type;
Precision precision;
} basic;
// TYPE_ARRAY
struct
{
VarType* elementType;
int size;
} array;
// TYPE_STRUCT
const StructType* structPtr;
Data (void)
{
array.elementType = DE_NULL;
array.size = 0;
};
} m_data;
} DE_WARN_UNUSED_TYPE;
template <typename T>
inline VarType varTypeOf (Precision prec = PRECISION_LAST) { return VarType(dataTypeOf<T>(), prec); }
class StructMember
{
public:
StructMember (const char* name, const VarType& type) : m_name(name), m_type(type) {}
StructMember (void) {}
const char* getName (void) const { return m_name.c_str(); }
const VarType& getType (void) const { return m_type; }
bool operator== (const StructMember& other) const;
bool operator!= (const StructMember& other) const;
private:
std::string m_name;
VarType m_type;
} DE_WARN_UNUSED_TYPE;
class StructType
{
public:
typedef std::vector<StructMember>::iterator Iterator;
typedef std::vector<StructMember>::const_iterator ConstIterator;
StructType (const char* typeName) : m_typeName(typeName) {}
~StructType (void) {}
bool hasTypeName (void) const { return !m_typeName.empty(); }
const char* getTypeName (void) const { return hasTypeName() ? m_typeName.c_str() : DE_NULL; }
void addMember (const char* name, const VarType& type);
int getNumMembers (void) const { return (int)m_members.size(); }
const StructMember& getMember (int ndx) const { return m_members[ndx]; }
inline Iterator begin (void) { return m_members.begin(); }
inline ConstIterator begin (void) const { return m_members.begin(); }
inline Iterator end (void) { return m_members.end(); }
inline ConstIterator end (void) const { return m_members.end(); }
bool operator== (const StructType& other) const;
bool operator!= (const StructType& other) const;
private:
std::string m_typeName;
std::vector<StructMember> m_members;
} DE_WARN_UNUSED_TYPE;
enum Storage
{
STORAGE_IN = 0,
STORAGE_OUT,
STORAGE_CONST,
STORAGE_UNIFORM,
STORAGE_BUFFER,
STORAGE_PATCH_IN,
STORAGE_PATCH_OUT,
STORAGE_LAST
};
const char* getStorageName (Storage storage);
enum Interpolation
{
INTERPOLATION_SMOOTH = 0,
INTERPOLATION_FLAT,
INTERPOLATION_CENTROID,
INTERPOLATION_LAST
};
const char* getInterpolationName (Interpolation interpolation);
enum FormatLayout
{
FORMATLAYOUT_RGBA32F = 0,
FORMATLAYOUT_RGBA16F,
FORMATLAYOUT_R32F,
FORMATLAYOUT_RGBA8,
FORMATLAYOUT_RGBA8_SNORM,
FORMATLAYOUT_RGBA32I,
FORMATLAYOUT_RGBA16I,
FORMATLAYOUT_RGBA8I,
FORMATLAYOUT_R32I,
FORMATLAYOUT_RGBA32UI,
FORMATLAYOUT_RGBA16UI,
FORMATLAYOUT_RGBA8UI,
FORMATLAYOUT_R32UI,
FORMATLAYOUT_LAST
};
const char* getFormatLayoutName (FormatLayout layout);
enum MemoryAccessQualifier
{
MEMORYACCESSQUALIFIER_COHERENT_BIT = 0x01,
MEMORYACCESSQUALIFIER_VOLATILE_BIT = 0x02,
MEMORYACCESSQUALIFIER_RESTRICT_BIT = 0x04,
MEMORYACCESSQUALIFIER_READONLY_BIT = 0x08,
MEMORYACCESSQUALIFIER_WRITEONLY_BIT = 0x10,
MEMORYACCESSQUALIFIER_MASK = (MEMORYACCESSQUALIFIER_WRITEONLY_BIT << 1) - 1
};
const char* getMemoryAccessQualifierName (MemoryAccessQualifier qualifier);
enum MatrixOrder
{
MATRIXORDER_COLUMN_MAJOR = 0,
MATRIXORDER_ROW_MAJOR,
MATRIXORDER_LAST
};
const char* getMatrixOrderName (MatrixOrder qualifier);
// Declaration utilities.
struct Layout
{
Layout (int location_ = -1, int binding_ = -1, int offset_ = -1, FormatLayout format_ = FORMATLAYOUT_LAST, MatrixOrder matrixOrder_ = MATRIXORDER_LAST);
bool operator== (const Layout& other) const;
bool operator!= (const Layout& other) const;
int location;
int binding;
int offset;
FormatLayout format;
MatrixOrder matrixOrder;
} DE_WARN_UNUSED_TYPE;
struct VariableDeclaration
{
VariableDeclaration (const VarType& varType_, const std::string& name_, Storage storage_ = STORAGE_LAST, Interpolation interpolation_ = INTERPOLATION_LAST, const Layout& layout_ = Layout(), deUint32 memoryAccessQualifierBits_ = 0);
bool operator== (const VariableDeclaration& other) const;
bool operator!= (const VariableDeclaration& other) const;
Layout layout;
Interpolation interpolation;
Storage storage;
VarType varType;
deUint32 memoryAccessQualifierBits;
std::string name;
} DE_WARN_UNUSED_TYPE;
struct InterfaceBlock
{
InterfaceBlock (void);
glu::Layout layout;
Storage storage;
int memoryAccessQualifierFlags;
std::string interfaceName;
std::string instanceName;
std::vector<glu::VariableDeclaration> variables;
std::vector<int> dimensions;
} DE_WARN_UNUSED_TYPE;
//! Internals for declare() utilities.
namespace decl
{
struct Indent
{
int level;
Indent (int level_) : level(level_) {}
};
struct DeclareStructTypePtr
{
DeclareStructTypePtr (const StructType* structPtr_, int indentLevel_) : structPtr(structPtr_), indentLevel(indentLevel_) {}
const StructType* structPtr;
int indentLevel;
};
struct DeclareStructType
{
DeclareStructType (const StructType& structType_, int indentLevel_) : structType(structType_), indentLevel(indentLevel_) {}
StructType structType;
int indentLevel;
};
struct DeclareVariable
{
DeclareVariable (const VarType& varType_, const std::string& name_, int indentLevel_) : varType(varType_), name(name_), indentLevel(indentLevel_) {}
VarType varType;
std::string name;
int indentLevel;
};
std::ostream& operator<< (std::ostream& str, const Indent& indent);
std::ostream& operator<< (std::ostream& str, const DeclareStructTypePtr& decl);
std::ostream& operator<< (std::ostream& str, const DeclareStructType& decl);
std::ostream& operator<< (std::ostream& str, const DeclareVariable& decl);
} // decl
inline decl::Indent indent (int indentLevel) { return decl::Indent(indentLevel); }
inline decl::DeclareStructTypePtr declare (const StructType* structPtr, int indentLevel = 0) { return decl::DeclareStructTypePtr (structPtr, indentLevel); }
inline decl::DeclareStructType declare (const StructType& structType, int indentLevel = 0) { return decl::DeclareStructType (structType, indentLevel); }
inline decl::DeclareVariable declare (const VarType& varType, const std::string& name, int indentLevel = 0) { return decl::DeclareVariable (varType, name, indentLevel); }
std::ostream& operator<< (std::ostream& str, const Layout& decl);
std::ostream& operator<< (std::ostream& str, const VariableDeclaration& decl);
} // glu
#endif // _GLUVARTYPE_HPP