love2d.love/src/modules/image/magpie/CompressedImageData.cpp

/**
 * Copyright (c) 2006-2017 LOVE Development Team
 *
 * This software is provided 'as-is', without any express or implied
 * warranty.  In no event will the authors be held liable for any damages
 * arising from the use of this software.
 *
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 *
 * 1. The origin of this software must not be misrepresented; you must not
 *    claim that you wrote the original software. If you use this software
 *    in a product, an acknowledgment in the product documentation would be
 *    appreciated but is not required.
 * 2. Altered source versions must be plainly marked as such, and must not be
 *    misrepresented as being the original software.
 * 3. This notice may not be removed or altered from any source distribution.
 **/

#include "CompressedImageData.h"

namespace love
{
namespace image
{
namespace magpie
{

CompressedImageData::CompressedImageData(std::list<CompressedFormatHandler *> formats, love::filesystem::FileData *filedata)
{
	CompressedFormatHandler *parser = nullptr;

	for (CompressedFormatHandler *handler : formats)
	{
		if (handler->canParse(filedata))
		{
			parser = handler;
			break;
		}
	}

	if (parser == nullptr)
		throw love::Exception("Could not parse compressed data: Unknown format.");

	memory = parser->parse(filedata, dataImages, format, sRGB);

	if (memory == nullptr)
		throw love::Exception("Could not parse compressed data.");

	if (format == PIXELFORMAT_UNKNOWN)
		throw love::Exception("Could not parse compressed data: Unknown format.");

	if (dataImages.size() == 0 || memory->size == 0)
		throw love::Exception("Could not parse compressed data: No valid data?");
}

CompressedImageData::CompressedImageData(const CompressedImageData &c)
{
	format = c.format;
	sRGB = c.sRGB;

	memory.set(new Memory(c.memory->size), Acquire::NORETAIN);
	memcpy(memory->data, c.memory->data, memory->size);

	for (const auto &i : c.dataImages)
	{
		Slice *slice = new Slice(i->getFormat(), i->getWidth(), i->getHeight(), memory, i->getOffset(), i->getSize());
		dataImages.push_back(slice);
		slice->release();
	}
}

CompressedImageData *CompressedImageData::clone() const
{
	return new CompressedImageData(*this);
}

CompressedImageData::~CompressedImageData()
{
}

} // magpie
} // image
} // love