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Diffstat (limited to 'src/runtimerender/resourcemanager/Qt3DSRenderLoadedTexture.h')
| -rw-r--r-- | src/runtimerender/resourcemanager/Qt3DSRenderLoadedTexture.h | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/src/runtimerender/resourcemanager/Qt3DSRenderLoadedTexture.h b/src/runtimerender/resourcemanager/Qt3DSRenderLoadedTexture.h new file mode 100644 index 0000000..f019400 --- /dev/null +++ b/src/runtimerender/resourcemanager/Qt3DSRenderLoadedTexture.h @@ -0,0 +1,184 @@ +/**************************************************************************** +** +** 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 |