genesis-3d_engine/Engine/addons/resource/imageoperations.cc

/****************************************************************************
Copyright (c) 2011-2013,WebJet Business Division,CYOU

http://www.genesis-3d.com.cn

Permission is hereby granted, free of charge, to any person obtaining a copy
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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#include "stdneb.h"
#include "resource/resource_stdneb.h"
#include "imageoperations.h"
#include "foundation/io/stream.h" 
#include "foundation/io/ioserver.h" 


// must define FREEIMAGE_LIB when use FreeImage as static lib
#define FREEIMAGE_LIB
// use free image to load image
#include "FreeImage/FreeImage.h"

// freeimage 3.9.1~3.11.0 interoperability fix
#ifndef FREEIMAGE_COLORORDER
// we have freeimage 3.9.1, define these symbols in such way as 3.9.1 really work (do not use 3.11.0 definition, as color order was changed between these two versions on Apple systems)
#define FREEIMAGE_COLORORDER_BGR	0
#define FREEIMAGE_COLORORDER_RGB	1
#if defined(FREEIMAGE_BIGENDIAN)
#define FREEIMAGE_COLORORDER FREEIMAGE_COLORORDER_RGB
#else
#define FREEIMAGE_COLORORDER FREEIMAGE_COLORORDER_BGR
#endif
#endif

#ifndef __WIN32__

//#error	//	@todo in iphone

// Color order is actually RGB on iPhone
//#if OGRE_PLATFORM == OGRE_PLATFORM_IPHONE
//#define FREEIMAGE_COLORORDER FREEIMAGE_COLORORDER_RGB
//#endif

#endif

namespace Resources
{

	using namespace Math;

	__ImplementClass(ImageOperations, 'IMOP', Core::RefCounted)

#define FOURCC(c0, c1, c2, c3) (c0 | (c1 << 8) | (c2 << 16) | (c3 << 24))
		typedef uint uint32;	//	static_assert sizeof(uint)==4  later
	typedef ushort uint16;  //  static_assert sizeof(uint16)==2  later
	typedef ubyte uint8;  //  static_assert sizeof(uint16)==1  later

#include "addons/resource/DDS_Header.h"

	ImageOperations::ImageOperations()
	{
	}
	//------------------------------------------------------------------------------

	ImageOperations::~ImageOperations()
	{}
#if  __OSX__

#else
	//------------------------------------------------------------------------
	// Save dib to disk file to use native IO via memory stream instead of FreeImage IO
	bool SaveToFile(FREE_IMAGE_FORMAT fif, FIBITMAP *dib, const IO::URI& uri)
	{
		n_assert(dib);
		bool ret = false;
		FIMEMORY* hMem = FreeImage_OpenMemory();
		if( FreeImage_SaveToMemory(fif,dib,hMem) )
		{
			//	Note: After FreeImage_SaveToMemory hMem points at the end of memory stream
#if NEBULA3_DEBUG
			long filememSize = FreeImage_TellMemory(hMem);	// address of hMem equals the size of the file
#endif
			FreeImage_SeekMemory(hMem,0,SEEK_SET);	
			IO::IoServer* ioServer = IO::IoServer::Instance();
			n_assert(ioServer);
			GPtr<IO::Stream> stream = ioServer->CreateFileStream(uri);
			if ( stream )
			{
				stream->SetAccessMode(IO::Stream::WriteAccess);
				if ( stream->Open() )
				{
					const int BufSize = 1024;
					char buf[BufSize];
					unsigned readCount = 0; 
#if NEBULA3_DEBUG
					long writeSize  = 0; 
#endif
					do 
					{
						readCount = FreeImage_ReadMemory(buf, 1, BufSize, hMem);
						n_assert(readCount<=BufSize);
						if ( readCount > 0 )
						{
							stream->Write(buf,readCount);
#if NEBULA3_DEBUG
							writeSize += readCount;
#endif
						}
					} 
					while ( readCount == BufSize );

#if NEBULA3_DEBUG
					n_assert(writeSize==filememSize);
#endif

					stream->Close();
					ret = true;
				}
			}
		}

		FreeImage_CloseMemory(hMem);
		return ret;
	}
#endif
#if  __OSX__

#else
	//------------------------------------------------------------------------
	bool ImageOperations::CreateTGAImageResAndSave(const Util::String &fileName, const int width, const int height, const Color32 &defaultColor)
	{
		FIBITMAP *dib = FreeImage_Allocate(width, height, 32, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK);
		if (!dib)
		{
			n_warning("Create tga image res error.");
			return false;
		}

		RGBQUAD rgbBkColor;
		rgbBkColor.rgbRed = defaultColor.r;
		rgbBkColor.rgbGreen = defaultColor.g;
		rgbBkColor.rgbBlue = defaultColor.b;
		rgbBkColor.rgbReserved = defaultColor.a;

		//FREE_IMAGE_TYPE image_type = FreeImage_GetImageType(dib);	//for test
		FREE_IMAGE_COLOR_TYPE color_type = FreeImage_GetColorType(dib);	
		switch(color_type)
		{
		case FIC_RGBALPHA:
			{
				//TODO(KouYan): To optimize, assign a value at a time
				for (int y=0; y<height; y++)
				{
					for (int x=0; x<width; x++)
					{
						FreeImage_SetPixelColor(dib, x, y, &rgbBkColor);
					}
				}
				break;
			}
		default:
			{
				n_warning("CreateTGAImageResAndSave():do not support color type.");
				return false;
			}
		}

		bool ret = SaveToFile(FIF_TARGA, dib, fileName);
		FreeImage_Unload(dib);

		return ret;
	}
	//------------------------------------------------------------------------------
	bool ImageOperations::SaveTGAImage(const Util::String &imagePath, const GPtr<Resources::ImageRes> &res)
	{
		n_assert(imagePath.IsValid());

		const SizeT width = res->GetWidth();
		const SizeT height = res->GetHeight();

		FIBITMAP *dib = FreeImage_Allocate(width, height, 32);
		if (!dib)
		{
			n_warning("Create tga image res error.");
			return false;
		}

		RGBQUAD rgbBkColor;
		Math::ColorF tmpBuf;

		FREE_IMAGE_COLOR_TYPE color_type = FreeImage_GetColorType(dib);	
		switch(color_type)
		{
		case FIC_RGBALPHA:
			{
				//TODO(KouYan): To optimize, assign a value at a time
				for (int y=0; y<height; y++)
				{
					for (int x=0; x<width; x++)
					{
						res->GetPixels(x, y, 1, 1, 0, &tmpBuf);
						rgbBkColor.rgbRed = n_scalartoByte(tmpBuf.r);
						rgbBkColor.rgbGreen = n_scalartoByte(tmpBuf.g);
						rgbBkColor.rgbBlue = n_scalartoByte(tmpBuf.b);
						rgbBkColor.rgbReserved = n_scalartoByte(tmpBuf.a);
						FreeImage_SetPixelColor(dib, x, y, &rgbBkColor);
					}
				}
				break;
			}
		default:
			{
				n_warning("CreateTGAImageResAndSave():do not support color type.");
				return false;
			}
		}
		FreeImage_FlipVertical(dib);
		bool ret = SaveToFile(FIF_TARGA, dib, imagePath);
		FreeImage_Unload(dib);

		/*FIMEMORY* fiMem = FreeImage_OpenMemory( data, static_cast<DWORD>(size) );
		FIBITMAP* fiBitmap = FreeImage_LoadFromMemory( (FREE_IMAGE_FORMAT)fileType, fiMem );

		if (fiMem && fiBitmap)
		{
		ret = FreeImage_Save((FREE_IMAGE_FORMAT)fileType, fiBitmap, imagePath.AsCharPtr(), 0);
		FreeImage_Unload(fiBitmap);
		FreeImage_CloseMemory(fiMem);
		}*/

		return ret;
	}
	//------------------------------------------------------------------------------
	void ImageOperations::SaveDDSCubeImage(uint32 height_ , uint32 width_ ,const Util::String& fileName , void* data, int size)
	{
		DDSHeader ddsh;
		unsigned int headerSize = sizeof(DDSHeader);

		const uint value = 0x00;
		Memory::Fill(&ddsh,headerSize,value);

		ddsh.size = headerSize;
		ddsh.flags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT | DDSD_PIXELFORMAT;
		ddsh.height = height_;
		ddsh.width = width_;

		ddsh.flags |= DDSD_PITCH;

		ddsh.sizeOrPitch = ((width_ * 4 * 8 + 31) & -32) >> 3;

		ddsh.pixelFormat.size = sizeof(DDSPixelFormat);

		ddsh.pixelFormat.flags = DDPF_RGBA;
		ddsh.pixelFormat.rgbBits = 32;
		ddsh.pixelFormat.redMask = 0x00ff0000;
		ddsh.pixelFormat.greenMask = 0x0000ff00;
		ddsh.pixelFormat.blueMask = 0x000000ff;


		ddsh.pixelFormat.flags |= DDPF_ALPHAPIXELS;
		ddsh.pixelFormat.alphaMask = 0xff000000;


		ddsh.caps.caps1 = DDSCAPS_TEXTURE;
		ddsh.caps.caps1 |= DDSCAPS_COMPLEX;
		ddsh.caps.caps2  =  DDSCAPS2_CUBEMAP |
			DDSCAPS2_CUBEMAP_POSITIVEX|
			DDSCAPS2_CUBEMAP_NEGATIVEX|
			DDSCAPS2_CUBEMAP_POSITIVEY|
			DDSCAPS2_CUBEMAP_NEGATIVEY|
			DDSCAPS2_CUBEMAP_POSITIVEZ|
			DDSCAPS2_CUBEMAP_NEGATIVEZ;


		const char* DDSName = "DDS ";

		IO::URI tmpUri; 
		tmpUri.Set(fileName.AsCharPtr()); 
		GPtr<IO::Stream> srcStream = IO::IoServer::Instance()->CreateFileStream(tmpUri); 
		srcStream->SetAccessMode(IO::Stream::WriteAccess); 

		if (srcStream->Open())
		{
			srcStream->Write(DDSName,4);
			srcStream->Write(&ddsh,sizeof(DDSHeader));
			srcStream->Write(data,size);

			srcStream->Close();
		}
	}

	void ImageOperations::HorizontalFlipImage( void* data,const int size ,const int width,const int height)
	{

		FIBITMAP *dib = FreeImage_Allocate(width, height, 32);
		if (!dib)
		{
			n_warning("Create tga image res error.");
			return ;
		}

		FREE_IMAGE_COLOR_TYPE color_type = FreeImage_GetColorType(dib);	
		switch(color_type)
		{
		case FIC_RGBALPHA:
			{

				BYTE* src = FreeImage_GetBits(dib);
				Memory::CopyToGraphicsMemory(data,src,size);
				break;
			}
		default:
			{
				n_warning("HorizontalFlipImage():do not support color type.");
				FreeImage_Unload(dib);
				return ;
			}
		}
		FreeImage_FlipHorizontal(dib);

		BYTE* src = FreeImage_GetBits(dib);

		Memory::CopyToGraphicsMemory(src,data,size);

		FreeImage_Unload(dib);

	}
#endif
}