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#ifndef QGLCOLLADAFXEFFECTFACTORY_H
#define QGLCOLLADAFXEFFECTFACTORY_H
#include <Qt3D/qgltexture2d.h>
#include <Qt3D/qglcolladafxeffect.h>
#include <QVector>
#include <QXmlStreamReader>
#include <QDir>
Q_DECLARE_METATYPE(QArray<float>)
QT_BEGIN_NAMESPACE
class QGLColladaFxEffect;
class QGLColladaImageParam;
class QGLColladaSurfaceParam;
class QGLColladaSampler2DParam;
typedef struct _ResultState
{
QMap<QString, QVariant> paramSids;
QMap<QString, QVariant> paramIds;
QMap<QString, QVariant> paramNames;
QDir sourceDir;
QMap<QGLTexture2D*, QString> unresolvedTexture2Ds;
} ResultState;
class Q_QT3D_EXPORT QGLColladaFxEffectFactory
{
public:
// Collada parsing functions
static QList<QGLColladaFxEffect*> loadEffectsFromFile(const QString& fileName );
protected:
static QList<QGLColladaFxEffect*> loadEffectsFromXml( QXmlStreamReader& xml, QDir homeDirectory = QDir());
static void processLibraryImagesElement( QXmlStreamReader& xml, ResultState* stateStack );
static QList<QGLColladaFxEffect*> processLibraryEffectsElement( QXmlStreamReader& xml, ResultState* stateStack );
static QList<QGLColladaFxEffect*> processEffectElement( QXmlStreamReader& xml, ResultState* stateStack );
static QList<QGLColladaFxEffect*> processProfileElement( QXmlStreamReader& xml, ResultState* stateStack );
static QGLColladaParam* processPassElement( QXmlStreamReader& xml, ResultState* stateStack, QGLColladaFxEffect* effect );
static QGLColladaFxEffect* processTechniqueElement( QXmlStreamReader& xml, ResultState* stateStack, QString &profileName );
static QGLColladaParam* processNewparamElement( QXmlStreamReader& xml, ResultState* stateStack );
static void processImageElement( QXmlStreamReader& xml, ResultState* stateStack );
static QGLColladaSurfaceParam* processSurfaceElement( QXmlStreamReader& xml, ResultState* stateStack, QString passedInSid = QString());
static void processSampler2DElement( QXmlStreamReader& xml, ResultState* stateStack, QString passedInSid );
static QGLTexture2D* processTextureElement( QXmlStreamReader& xml , ResultState* stateStack );
static QVariant processFloatList( QXmlStreamReader& xml );
static QColor processColorElement( QXmlStreamReader& xml );
static float processParamOrFloatElement( QXmlStreamReader& xml );
static QVariant processColorOrTextureElement( QXmlStreamReader& xml );
QGLColladaFxEffectFactory();
static void processProgramElement( QXmlStreamReader& xml, ResultState* stateStack, QGLColladaFxEffect* effect );
// Collada generation functions
public:
static QString exportEffect(QGLColladaFxEffect *effect, QString effectId, QString techniqueSid);
protected:
static QStringList glslProfileFromEffect(QGLColladaFxEffect* effect, QString techniqueSid);
static QStringList generateProgramElement(QGLColladaFxEffect* effect, QString techniqueSid);
static QStringList generateShaderElement( QGLColladaFxEffect* effect, QString vertexShaderRefSid, QString fragmentShaderRefSid );
static QStringList generateBindUniformElement( QGLColladaFxEffect* effect );
static QStringList generateBindAttributeElement( QGLColladaFxEffect* effect );
static QStringList generateBindUniformElements( QGLColladaFxEffect* effect );
static QStringList generateCodeElements( QGLColladaFxEffect* effect, QString baseSid );
static QImage resolveImageURI(ResultState *resultState, QString imageFileName);
static bool resolveTexture2DImage(QGLTexture2D *result, ResultState *resultState, QString paramName);
};
class QGLColladaParam
{
friend class QGLColladaFxEffectFactory;
public:
enum {
UnknownType = 0,
Sampler2DType,
Texture2DType,
SurfaceType,
ImageType,
UserDefinedType = 100
};
virtual ~QGLColladaParam();
int type();
QVector<float> value();
QString sid();
QString id();
static QString typeString(int);
protected:
QGLColladaParam(QString sid, int type);
QString mSid;
QString mId;
int mType;
QVector<float> mValue;
};
class QGLColladaTextureParam : public QGLColladaParam
{
friend class QGLColladaFxEffectFactory;
public:
QGLColladaTextureParam(QString sid, QGLTexture2D* texture);
QGLTexture2D* texture();
QString samplerSid();
protected:
QGLTexture2D* mTexture;
QString sampler2DSid;
QString texCoordSid;
};
class QGLColladaSurfaceParam : public QGLColladaParam
{
friend class QGLColladaFxEffectFactory;
public:
QGLColladaSurfaceParam(QString sid);
protected:
QString mInitFrom;
QString mFormat;
QString mFormatHint;
QString mSize;
QVector<int> mSizeVector;
QPointF mViewportRatio;
int mMipLevels;
bool mMipMapGenerate;
QString mExtra;
QString mGenerator;
};
class QGLColladaSampler2DParam : public QGLColladaParam
{
friend class QGLColladaFxEffectFactory;
public:
QGLColladaSampler2DParam(QString sid, QGLTexture2D* sampler);
QGLColladaSampler2DParam(QString sid, QString sourceSid);
QGLTexture2D sampler();
QString sourceSid();
protected:
QGLTexture2D* mTexture;
QString mSourceSid;
};
// "image" isn't really a param, but it shares enough that it seems sensible
// to re-use the QGLColladaParam base.
class QGLColladaImageParam : public QGLColladaParam
{
friend class QGLColladaFxEffectFactory;
public:
QGLColladaImageParam(QString sid, QImage image);
QImage image();
QString name();
protected:
QImage mImage;
QString mName;
};
QT_END_NAMESPACE
#endif // QGLCOLLADAFXEFFECTFACTORY_H
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