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**
** Copyright (C) 2015 The Qt Company Ltd.
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** This file is part of the QtCanvas3D module of the Qt Toolkit.
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****************************************************************************/

#include "uniformlocation_p.h"
#include "context3d_p.h"

QT_BEGIN_NAMESPACE
QT_CANVAS3D_BEGIN_NAMESPACE

/*!
 * \qmltype Canvas3DUniformLocation
 * \since QtCanvas3D 1.0
 * \inqmlmodule QtCanvas3D
 * \inherits Canvas3DAbstractObject
 * \brief Contains uniform location id.
 *
 * An uncreatable QML type that contains an uniform location id. You can get it by calling
 * the \l{Context3D::getUniformLocation()}{Context3D.getUniformLocation()} method.
 */

CanvasUniformLocation::CanvasUniformLocation(CanvasGlCommandQueue *queue, QObject *parent) :
    CanvasAbstractObject(queue, parent),
    m_locationId(queue->createResourceId()),
    m_type(-1)
{
}

CanvasUniformLocation::~CanvasUniformLocation()
{
    if (m_locationId)
        queueCommand(CanvasGlCommandQueue::internalClearLocation, m_locationId);
}

GLint CanvasUniformLocation::id()
{
    return m_locationId;
}

GLint CanvasUniformLocation::type()
{
    return m_type;
}

/*!
 * Synchronously retrieves uniform type.
 */
void CanvasUniformLocation::resolveType(GLint programId, CanvasContext *context)
{
    if (m_type < 0) {
        GlSyncCommand syncCommand(CanvasGlCommandQueue::internalGetUniformType, programId);
        syncCommand.data = new QByteArray(name().toLatin1());
        syncCommand.returnValue = &m_type;
        context->scheduleSyncCommand(&syncCommand);
    }
}

QDebug operator<<(QDebug dbg, const CanvasUniformLocation *uLoc)
{
    if (uLoc)
        dbg.nospace() << "Canvas3DUniformLocation("<< (void *) uLoc << ", name:"<< uLoc->name() <<", location:" << uLoc->m_locationId << ")";
    else
        dbg.nospace() << "Canvas3DUniformLocation("<< (void *)(uLoc) << ")";

    return dbg.maybeSpace();
}

QT_CANVAS3D_END_NAMESPACE
QT_END_NAMESPACE
