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kraken/kraken/KRTextureKTX.h

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//
// KRTextureKTX.h
// Kraken Engine
//
// Copyright 2022 Kearwood Gilbert. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other materials
// provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The views and conclusions contained in the software and documentation are those of the
// authors and should not be interpreted as representing official policies, either expressed
// or implied, of Kearwood Gilbert.
//
#pragma once
#include "KRTexture2D.h"
class KRTextureKTX : public KRTexture2D
{
public:
KRTextureKTX(KRContext& context, KRDataBlock* data, std::string name);
KRTextureKTX(KRContext& context, std::string name, unsigned int internal_format, unsigned int base_internal_format, int width, int height, const std::list<KRDataBlock*>& blocks);
virtual ~KRTextureKTX();
virtual std::string getExtension();
bool uploadTexture(KRDevice& device, VkImage& image, int lod_max_dim, int& current_lod_max_dim, bool premultiply_alpha = false) override;
virtual long getMemRequiredForSize(int max_dim);
virtual Vector2i getDimensions() const override;
protected:
std::list<KRDataBlock*> m_blocks;
typedef struct _KTXHeader
{
__uint8_t identifier[12];
__uint32_t endianness;
__uint32_t glType;
__uint32_t glTypeSize;
__uint32_t glFormat;
__uint32_t glInternalFormat;
__uint32_t glBaseInternalFormat;
__uint32_t pixelWidth;
__uint32_t pixelHeight;
__uint32_t pixelDepth;
__uint32_t numberOfArrayElements;
__uint32_t numberOfFaces;
__uint32_t numberOfMipmapLevels;
__uint32_t bytesOfKeyValueData;
} KTXHeader;
KTXHeader m_header;
};