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// Copyright (C) 2008-2012 NVIDIA Corporation.
// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#ifndef QSSG_RENDER_LOADED_TEXTURE_H
#define QSSG_RENDER_LOADED_TEXTURE_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtQuick3DUtils/private/qssgrenderbasetypes_p.h>
#include <QtQuick3DRuntimeRender/private/qtquick3druntimerenderglobal_p.h>
#include <QtGui/QImage>
#include <private/qtexturefiledata_p.h>
QT_BEGIN_NAMESPACE
class QSSGRenderTextureData;
struct QSSGTextureData
{
void *data = nullptr;
quint32 dataSizeInBytes = 0;
QSSGRenderTextureFormat format = QSSGRenderTextureFormat::Unknown;
};
struct Q_QUICK3DRUNTIMERENDER_EXPORT QSSGInputUtil
{
public:
enum FileType { UnknownFile, ImageFile, TextureFile, HdrFile };
static QSharedPointer<QIODevice> getStreamForFile(const QString &inPath,
bool inQuiet = false,
QString *outPath = nullptr);
static QSharedPointer<QIODevice> getStreamForTextureFile(const QString &inPath,
bool inQuiet = false,
QString *outPath = nullptr,
FileType *outFileType = nullptr);
};
// Utility class used for loading image data from disk.
struct Q_QUICK3DRUNTIMERENDER_EXPORT QSSGLoadedTexture
{
public:
qint32 width = 0;
qint32 height = 0;
qint32 depth = 0;
qint32 components = 0;
void *data = nullptr;
bool ownsData = true;
QTextureFileData textureFileData;
QImage image;
quint32 dataSizeInBytes = 0;
QSSGRenderTextureFormat format = QSSGRenderTextureFormat::RGBA8;
// #TODO: There should be more ways to influence this (hints on the texture)
bool isSRGB = false;
~QSSGLoadedTexture();
void setFormatFromComponents()
{
switch (components) {
case 1: // undefined, but in this context probably luminance
format = QSSGRenderTextureFormat::R8;
break;
case 2:
format = QSSGRenderTextureFormat::RG8;
break;
case 3:
format = QSSGRenderTextureFormat::RGB8;
break;
default:
// fallthrough intentional
case 4:
format = QSSGRenderTextureFormat::RGBA8;
break;
}
}
// Returns true if this image has a pixel less than 255.
bool scanForTransparency() const;
static QSSGLoadedTexture *load(const QString &inPath,
const QSSGRenderTextureFormat &inFormat,
bool inFlipY = true);
static QSSGLoadedTexture *loadQImage(const QString &inPath, qint32 flipVertical);
static QSSGLoadedTexture *loadCompressedImage(const QString &inPath);
static QSSGLoadedTexture *loadHdrImage(const QSharedPointer<QIODevice> &source, const QSSGRenderTextureFormat &inFormat);
static QSSGLoadedTexture *loadTextureData(QSSGRenderTextureData *textureData);
static QSSGLoadedTexture *loadLightmapImage(const QString &inPath, const QSSGRenderTextureFormat &inFormat, const QString &key);
};
QT_END_NAMESPACE
#endif
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