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/****************************************************************************
**
** Copyright (C) 2008-2012 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#pragma once
#ifndef QT3DS_RENDER_LOADED_TEXTURE_H
#define QT3DS_RENDER_LOADED_TEXTURE_H
#include "Qt3DSRender.h"
#include "foundation/Qt3DSSimpleTypes.h"
#include "render/Qt3DSRenderBaseTypes.h"
#include "Qt3DSRenderLoadedTextureDDS.h"
#include "foundation/Qt3DSRefCounted.h"
#include <QImage>
namespace qt3ds {
namespace foundation {
class ISeekableIOStream;
class IInStream;
}
}
namespace qt3ds {
namespace render {
class IInputStreamFactory;
struct STextureData
{
void *data;
QT3DSU32 dataSizeInBytes;
qt3ds::render::NVRenderTextureFormats::Enum format;
STextureData()
: data(NULL)
, dataSizeInBytes(0)
, format(qt3ds::render::NVRenderTextureFormats::Unknown)
{
}
};
struct ExtendedTextureFormats
{
enum Enum {
NoExtendedFormat = 0,
Palettized,
CustomRGB,
};
};
// Utility class used for loading image data from disk.
// Supports jpg, png, and dds.
struct SLoadedTexture : public NVReleasable
{
private:
~SLoadedTexture();
public:
NVAllocatorCallback &m_Allocator;
QT3DSI32 width;
QT3DSI32 height;
QT3DSI32 components;
void *data;
QImage image;
QT3DSU32 dataSizeInBytes;
qt3ds::render::NVRenderTextureFormats::Enum format;
Qt3DSDDSImage *dds;
ExtendedTextureFormats::Enum m_ExtendedFormat;
// Used for palettized images.
void *m_Palette;
QT3DSI32 m_CustomMasks[3];
int m_BitCount;
char8_t m_BackgroundColor[3];
uint8_t *m_TransparencyTable;
int32_t m_TransparentPaletteIndex;
SLoadedTexture(NVAllocatorCallback &inAllocator)
: m_Allocator(inAllocator)
, width(0)
, height(0)
, components(0)
, data(NULL)
, image(0)
, dataSizeInBytes(0)
, format(qt3ds::render::NVRenderTextureFormats::RGBA8)
, dds(NULL)
, m_ExtendedFormat(ExtendedTextureFormats::NoExtendedFormat)
, m_Palette(NULL)
, m_BitCount(0)
, m_TransparencyTable(NULL)
, m_TransparentPaletteIndex(-1)
{
m_CustomMasks[0] = 0;
m_CustomMasks[1] = 0;
m_CustomMasks[2] = 0;
m_BackgroundColor[0] = 0;
m_BackgroundColor[1] = 0;
m_BackgroundColor[2] = 0;
}
void setFormatFromComponents()
{
switch (components) {
case 1: // undefined, but in this context probably luminance
format = qt3ds::render::NVRenderTextureFormats::Luminance8;
break;
case 2:
format = qt3ds::render::NVRenderTextureFormats::LuminanceAlpha8;
break;
case 3:
format = qt3ds::render::NVRenderTextureFormats::RGB8;
break;
default:
// fallthrough intentional
case 4:
format = qt3ds::render::NVRenderTextureFormats::RGBA8;
break;
}
}
void EnsureMultiplerOfFour(NVFoundationBase &inFoundation, const char *inPath);
// Returns true if this image has a pixel less than 255.
bool ScanForTransparency();
// Be sure to call this or risk leaking an enormous amount of memory
void release() override;
// Not all video cards support dxt compression. Giving the last image allows
// this object to potentially reuse the memory
STextureData DecompressDXTImage(int inMipMapIdx, STextureData *inOptLastImage = NULL);
void ReleaseDecompressedTexture(STextureData inImage);
static SLoadedTexture *Load(const QString &inPath, NVFoundationBase &inAllocator,
IInputStreamFactory &inFactory, bool inFlipY = true,
NVRenderContextType renderContextType
= NVRenderContextValues::NullContext, bool preferKTX = false);
static SLoadedTexture *LoadDDS(IInStream &inStream, QT3DSI32 flipVertical,
NVFoundationBase &fnd,
NVRenderContextType renderContextType);
static SLoadedTexture *LoadKTX(IInStream &inStream, QT3DSI32 flipVertical,
NVFoundationBase &fnd,
NVRenderContextType renderContextType);
static SLoadedTexture *LoadBMP(ISeekableIOStream &inStream, bool inFlipY,
NVFoundationBase &inFnd,
NVRenderContextType renderContextType);
static SLoadedTexture *LoadGIF(ISeekableIOStream &inStream, bool inFlipY,
NVFoundationBase &inFnd,
NVRenderContextType renderContextType);
static SLoadedTexture *LoadHDR(ISeekableIOStream &inStream, NVFoundationBase &inFnd,
NVRenderContextType renderContextType);
static SLoadedTexture *LoadQImage(const QString &inPath, QT3DSI32 flipVertical,
NVFoundationBase &fnd,
NVRenderContextType renderContextType);
private:
// Implemented in the bmp loader.
void FreeImagePostProcess(bool inFlipY);
};
}
}
#endif
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