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C++ ZStreamR::ReadInt32方法代码示例

本文整理汇总了C++中ZStreamR::ReadInt32方法的典型用法代码示例。如果您正苦于以下问题:C++ ZStreamR::ReadInt32方法的具体用法?C++ ZStreamR::ReadInt32怎么用?C++ ZStreamR::ReadInt32使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在ZStreamR的用法示例。


在下文中一共展示了ZStreamR::ReadInt32方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: sReadPixmap

static void sReadPixmap(const ZStreamR& inStream, ZDCPixmap& outPixmap)
	{
	uint16 rowBytes = inStream.ReadUInt16();
	if (!(rowBytes & 0x8000))
		::sThrowBadFormat();
	rowBytes &= 0x7FFF;

	ZRect bounds;
	bounds.top = inStream.ReadInt16();
	bounds.left = inStream.ReadInt16();
	bounds.bottom = inStream.ReadInt16();
	bounds.right = inStream.ReadInt16();
	inStream.ReadInt16(); // version
	inStream.ReadInt16(); // packType
	inStream.ReadInt32(); // packSize
	inStream.ReadInt32(); // hRes
	inStream.ReadInt32(); //vRes
	short pixelType = inStream.ReadInt16(); // pixelType
	short pixelSize = inStream.ReadInt16(); // pixelSize
	short cmpCount = inStream.ReadInt16(); // cmpCount
	short cmpSize = inStream.ReadInt16(); // cmpSize
	inStream.ReadInt32(); // planeBytes
	inStream.ReadInt32(); // pmTable
	inStream.ReadInt32(); // pmReserved

	// We only deal with pixel type of 0 (indexed pixels)
	if (pixelType != 0)
		::sThrowUnsupportedFormat();

	// indexed pixels have a cmpCount of 1
	if (cmpCount != 1)
		::sThrowBadFormat();

	// pixelSize and cmpSize should be equal for indexed pixels
	if (pixelSize != cmpSize)
		::sThrowBadFormat();

	// Next on the stream is the color table
	vector<ZRGBColor> theColorTable;
	inStream.ReadInt32(); // ctSeed
	inStream.ReadInt16(); // ctFlags
	short ctSize = inStream.ReadInt16();
	for (int i = 0; i <= ctSize; ++i)
		{
		inStream.ReadInt16(); // colorSpecIndex
		ZRGBColor theColor;
		theColor.red = inStream.ReadUInt16();
		theColor.green = inStream.ReadUInt16();
		theColor.blue = inStream.ReadUInt16();
		theColorTable.push_back(theColor);
		}

	// Now we have the source rect
	inStream.Skip(8);

	// and the destination rect
	inStream.Skip(8);

	// Penultimately we have the mode
	inStream.ReadUInt16();

	// The remaining data is the packed pixels. Allocate our ZDCPixmap
	// using the size we read in, but with no initialized data.
	ZDCPixmap thePixmap(bounds.Size(), ZDCPixmapNS::eFormatEfficient_Color_32);
	void* baseAddress = thePixmap.GetBaseAddress();
	ZDCPixmapNS::RasterDesc theRasterDesc = thePixmap.GetRasterDesc();
	ZDCPixmapNS::PixelDesc thePixelDesc = thePixmap.GetPixelDesc();
	::sUnpackFromStream(inStream,
		bounds.Width(), bounds.Height(),
		rowBytes, pixelSize,
		&theColorTable[0], theColorTable.size(),
		baseAddress, theRasterDesc, thePixelDesc);

	outPixmap = thePixmap;
	}
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