voimage.cpp

MOBILE平台的PNG图片处理

#include "stdafx.h"

#include "VOImage.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

#ifdef _WIN32_WCE
#pragma comment(lib, "imgdecmp.lib")
#endif

//#ifdef DEBUG_TIME_ANALYZE
//#include "../global/timeanalyze.h"
//extern CTimeAnalyze* g_pTimeAnalyze;
//#define TIME_ANALYZE_BEGINMAIN(id)	g_pTimeAnalyze->BeginMain(id)
//#define TIME_ANALYZE_ENDMAIN(id)		g_pTimeAnalyze->EndMain(id)
//#define TIME_ANALYZE_BEGIN(id)		g_pTimeAnalyze->Begin(id)
//#define TIME_ANALYZE_END(id)			g_pTimeAnalyze->End(id)
//#else
//#define TIME_ANALYZE_BEGINMAIN(id)
//#define TIME_ANALYZE_ENDMAIN(id)
//#define TIME_ANALYZE_BEGIN(id)
//#define TIME_ANALYZE_END(id)
//#endif


int		CVOImage::g_iScale = 100;
int		CVOImage::g_iMaxWidth = 10000;
int		CVOImage::g_iMaxHeight = 10000;
BOOL	CVOImage::g_bStretchBlt = FALSE;

#if !defined(SCREEN_176)
extern int32 g_ScaleWidth;
extern int32 g_ScaleHeight;
#endif

CVOImage::CVOImage() : m_hdc(0), m_hbitmap(0), m_dwWidth(0), m_dwHeight(0), m_hmoduleResource(0), m_dwResourceID(0)
{
}

CVOImage::~CVOImage()
{
	if(m_hdc)
		DeleteDC(m_hdc);
	if(m_hbitmap)
		DeleteObject(m_hbitmap);
}

DWORD CALLBACK CVOImage::GetImageDataP(LPSTR szBuffer, DWORD dwBufferMax, LPARAM lParam )
{
	FileP * fileP = (FileP *)lParam;
	DWORD dwNumberOfBytesRead;
	if(dwBufferMax==0) return 0;
	SetFilePointer(fileP->hFile, fileP->fileNowPoint, NULL, FILE_BEGIN);

	if ( (HANDLE)lParam == INVALID_HANDLE_VALUE )
		return 0;

	if(dwBufferMax-(fileP->fileNowPoint-fileP->fileStartPoint)>=1024)
	{
		ReadFile(fileP->hFile, szBuffer, 1024, &dwNumberOfBytesRead, NULL );
		fileP->fileNowPoint += 1024;
	}
	else if(dwBufferMax-(fileP->fileNowPoint-fileP->fileStartPoint)<=0)
	{
		return 0;
	}
	else
	{
		ReadFile(fileP->hFile, szBuffer, dwBufferMax-(fileP->fileNowPoint-fileP->fileStartPoint), &dwNumberOfBytesRead, NULL );
		fileP->fileNowPoint += dwBufferMax-(fileP->fileNowPoint-fileP->fileStartPoint);
	}
	return dwNumberOfBytesRead;
}
DWORD CALLBACK CVOImage::GetImageDataB(LPSTR szBuffer, DWORD dwBufferMax, LPARAM lParam )
{
	FileP * fileP = (FileP *)lParam;
	DWORD dwNumberOfBytesRead = 1024;
	if(dwBufferMax==0) return 0;

	char* tmp;

	if(dwBufferMax-(fileP->fileNowPoint-fileP->fileStartPoint)>=1024)
	{
		tmp = (char*)(fileP->hFile);
		tmp = tmp+fileP->fileNowPoint;
		memcpy(szBuffer,tmp,1024);
		fileP->fileNowPoint += 1024;
	}
	else if(dwBufferMax-(fileP->fileNowPoint-fileP->fileStartPoint)<=0)
	{
		return 0;
	}
	else
	{
		tmp = (char*)(fileP->hFile);
		tmp = tmp+fileP->fileNowPoint;
		memcpy(szBuffer,tmp,dwBufferMax-(fileP->fileNowPoint-fileP->fileStartPoint));
		dwNumberOfBytesRead= dwBufferMax-(fileP->fileNowPoint-fileP->fileStartPoint);
		fileP->fileNowPoint += dwBufferMax-(fileP->fileNowPoint-fileP->fileStartPoint);
	}
	return dwNumberOfBytesRead;
}
BOOL CVOImage::Load(HDC hdc, char* cSrc, DWORD start, DWORD len)
{
	if(cSrc==NULL) 
		return 0;

	//TIME_ANALYZE_BEGINMAIN( 153 );

	FileP* fileP = (FileP *)malloc(sizeof(FileP));

	fileP->fileStartPoint = start;
	fileP->hFile = cSrc;
	fileP->fileNowPoint = start;

	if(m_hbitmap)
	{
		DeleteObject(m_hbitmap);
	}

	if(!m_hdc)
	{
		m_hdc = CreateCompatibleDC(hdc);
 	}
#if !defined(SCREEN_176)
		HBITMAP	hbitmap = CreateCompatibleBitmap(hdc, GetDeviceCaps(hdc, HORZRES)*g_ScaleWidth, GetDeviceCaps(hdc, VERTRES)*g_ScaleHeight );
#else
		HBITMAP	hbitmap = CreateCompatibleBitmap(hdc, GetDeviceCaps(hdc, HORZRES), GetDeviceCaps(hdc, VERTRES) );
#endif

		SelectObject(m_hdc, hbitmap);
	

	BYTE    szBuffer[1024] = {0};

#ifdef _WIN32_WCE
	HRESULT hr;
	DecompressImageInfo	dii;

	// Fill in the 'DecompressImageInfo' structure
	dii.dwSize = sizeof( DecompressImageInfo );		// Size of this structure
	dii.pbBuffer = szBuffer;						// Pointer to the buffer to use for data
	dii.dwBufferMax = len;							// Size of the buffer
	dii.dwBufferCurrent = 0;						// The amount of data which is current in the buffer
	dii.phBM = &m_hbitmap;							// Pointer to the bitmap returned (can be NULL)
	dii.ppImageRender = NULL;						// Pointer to an IImageRender object (can be NULL)
	dii.iBitDepth = GetDeviceCaps(hdc,BITSPIXEL);	// Bit depth of the output image
	dii.lParam = ( LPARAM ) fileP;					// User parameter for callback functions
	dii.hdc = m_hdc;								// HDC to use for retrieving palettes
	dii.iScale = g_iScale;							// Scale factor (1 - 100)
	dii.iMaxWidth = g_iMaxWidth;					// Maximum width of the output image
	dii.iMaxHeight = g_iMaxHeight;					// Maxumum height of the output image
	dii.pfnGetData = GetImageDataB;					// Callback function to get image data
	dii.pfnImageProgress = ImageProgress;			// Callback function to notify caller of progress decoding the image
	dii.crTransparentOverride = ( UINT ) -1;		// If this color is not (UINT)-1, it will override the
													// transparent color in the image with this color. (GIF ONLY)

	// Process and decompress the image data
	//TIME_ANALYZE_BEGINMAIN( 151 );
	hr = DecompressImageIndirect( &dii );
	//TIME_ANALYZE_ENDMAIN( 151 );
#endif
	
	// Clean up 

	HBITMAP hbitmapOld = (HBITMAP)SelectObject(m_hdc, m_hbitmap);

	DeleteObject(hbitmapOld);

	BITMAP	bmp;

	GetObject(m_hbitmap, sizeof(BITMAP), &bmp);

	m_dwWidth = bmp.bmWidth;
	m_dwHeight = bmp.bmHeight;

	//m_strFileName = pcszFileName;//注意不能使用GetFileName
	m_dwResourceID = 0;
	m_hmoduleResource = 0;

	free(fileP);

	//TIME_ANALYZE_ENDMAIN( 153 );
	return TRUE;
}
//BOOL CVOImage::Load(HDC hdc, HANDLE hFile, DWORD start, DWORD len)
//{
//	if(hFile==INVALID_HANDLE_VALUE) 
//		return 0;
//
//	//TIME_ANALYZE_BEGINMAIN( 152 );
//	FileP* fileP = (FileP *)malloc(sizeof(FileP));
//
//	fileP->fileStartPoint = start;
//	fileP->hFile = hFile;
//	fileP->fileNowPoint = start;
//
//	if(m_hbitmap)
//	{
//		DeleteObject(m_hbitmap);
//	}
//
//	if(!m_hdc)
//	{
//		m_hdc = CreateCompatibleDC(hdc);
//	}
//
//#if !defined(SCREEN_176)
//	HBITMAP	hbitmap = CreateCompatibleBitmap(hdc, GetDeviceCaps(hdc, HORZRES)*g_ScaleWidth, GetDeviceCaps(hdc, VERTRES)*g_ScaleHeight);
//#else
//	HBITMAP	hbitmap = CreateCompatibleBitmap(hdc, GetDeviceCaps(hdc, HORZRES), GetDeviceCaps(hdc, VERTRES));
//#endif
//
//	SelectObject(m_hdc, hbitmap);
//	
//
//	BYTE    szBuffer[1024] = {0};
//
//#ifdef _WIN32_WCE
//	HRESULT hr;
//
//	DecompressImageInfo	dii;
//#endif
//
//
//#ifdef _WIN32_WCE
//	// Fill in the 'DecompressImageInfo' structure
//	dii.dwSize = sizeof( DecompressImageInfo );		// Size of this structure
//	dii.pbBuffer = szBuffer;						// Pointer to the buffer to use for data
//	dii.dwBufferMax = len;							// Size of the buffer
//	dii.dwBufferCurrent = 0;						// The amount of data which is current in the buffer
//	dii.phBM = &m_hbitmap;							// Pointer to the bitmap returned (can be NULL)
//	dii.ppImageRender = NULL;						// Pointer to an IImageRender object (can be NULL)
//	dii.iBitDepth = GetDeviceCaps(hdc,BITSPIXEL);	// Bit depth of the output image
//	dii.lParam = ( LPARAM ) fileP;					// User parameter for callback functions
//	dii.hdc = m_hdc;								// HDC to use for retrieving palettes
//	dii.iScale = g_iScale;							// Scale factor (1 - 100)
//	dii.iMaxWidth = g_iMaxWidth;					// Maximum width of the output image
//	dii.iMaxHeight = g_iMaxHeight;					// Maxumum height of the output image
//	dii.pfnGetData = GetImageDataP;					// Callback function to get image data
//	dii.pfnImageProgress = ImageProgress;			// Callback function to notify caller of progress decoding the image
//	dii.crTransparentOverride = ( UINT ) -1;		// If this color is not (UINT)-1, it will override the
//													// transparent color in the image with this color. (GIF ONLY)
//
//	// Process and decompress the image data
//	//TIME_ANALYZE_BEGINMAIN( 130 );
//	hr = DecompressImageIndirect( &dii );
//	//TIME_ANALYZE_ENDMAIN( 130 );
//#endif
//	
//	// Clean up 
//
//	HBITMAP hbitmapOld = (HBITMAP)SelectObject(m_hdc, m_hbitmap);
//
//	DeleteObject(hbitmapOld);
//
//	BITMAP	bmp;
//
//	GetObject(m_hbitmap, sizeof(BITMAP), &bmp);
//
//	m_dwWidth = bmp.bmWidth;
//	m_dwHeight = bmp.bmHeight;
//
//	//m_strFileName = pcszFileName;//注意不能使用GetFileName
//	m_dwResourceID = 0;
//	m_hmoduleResource = 0;
//
//	free(fileP);
//
//	//TIME_ANALYZE_ENDMAIN( 152 );
//	return TRUE;
//}
//
//
BOOL CVOImage::Load(HDC hdc, LPCTSTR pcszFileName)
{
	if(m_hbitmap)
	{
		if(GetFileName().GetLength() && GetFileName() == pcszFileName)
			return TRUE;	// Already Loaded

		DeleteObject(m_hbitmap);
	}

	//TIME_ANALYZE_BEGINMAIN( 157 );
 	if(!m_hdc)
 	{
 		m_hdc = CreateCompatibleDC(hdc);
 	}

#if !defined(SCREEN_176)
	HBITMAP	hbitmap = CreateCompatibleBitmap(hdc, GetDeviceCaps(hdc, HORZRES)*g_ScaleWidth, GetDeviceCaps(hdc, VERTRES)*g_ScaleHeight);
#else
	HBITMAP	hbitmap = CreateCompatibleBitmap(hdc, GetDeviceCaps(hdc, HORZRES), GetDeviceCaps(hdc, VERTRES));
#endif

	SelectObject(m_hdc, hbitmap);
	
	

	BYTE    szBuffer[1024] = {0};
	HANDLE hFile = INVALID_HANDLE_VALUE;

#ifdef _WIN32_WCE
	HRESULT hr;

	DecompressImageInfo	dii;
#endif

	hFile = CreateFile(pcszFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL );
	if (hFile == INVALID_HANDLE_VALUE)
		return FALSE;

#ifdef _WIN32_WCE
	// Fill in the 'DecompressImageInfo' structure
	dii.dwSize = sizeof( DecompressImageInfo );		// Size of this structure
	dii.pbBuffer = szBuffer;						// Pointer to the buffer to use for data
	dii.dwBufferMax = 1024;							// Size of the buffer
	dii.dwBufferCurrent = 0;						// The amount of data which is current in the buffer
	dii.phBM = &m_hbitmap;							// Pointer to the bitmap returned (can be NULL)
	dii.ppImageRender = NULL;						// Pointer to an IImageRender object (can be NULL)
	dii.iBitDepth = GetDeviceCaps(hdc,BITSPIXEL);	// Bit depth of the output image
	dii.lParam = ( LPARAM ) hFile;					// User parameter for callback functions
	dii.hdc = m_hdc;								// HDC to use for retrieving palettes
	dii.iScale = g_iScale;							// Scale factor (1 - 100)
	dii.iMaxWidth = g_iMaxWidth;					// Maximum width of the output image
	dii.iMaxHeight = g_iMaxHeight;					// Maxumum height of the output image
	dii.pfnGetData = GetImageData;					// Callback function to get image data
	dii.pfnImageProgress = ImageProgress;			// Callback function to notify caller of progress decoding the image
	dii.crTransparentOverride = ( UINT ) -1;		// If this color is not (UINT)-1, it will override the
													// transparent color in the image with this color. (GIF ONLY)

	// Process and decompress the image data
	//TIME_ANALYZE_BEGINMAIN( 155 );
	hr = DecompressImageIndirect( &dii );
	//TIME_ANALYZE_ENDMAIN( 155 );
#endif
	
	// Clean up 
	CloseHandle( hFile );

	HBITMAP hbitmapOld = (HBITMAP)SelectObject(m_hdc, m_hbitmap);

	DeleteObject(hbitmapOld);

	BITMAP	bmp;

	GetObject(m_hbitmap, sizeof(BITMAP), &bmp);

	m_dwWidth = bmp.bmWidth;
	m_dwHeight = bmp.bmHeight;

	m_strFileName = pcszFileName;
	m_dwResourceID = 0;
	m_hmoduleResource = 0;

	//TIME_ANALYZE_ENDMAIN( 157 );
	return TRUE;
}

//HBITMAP CVOImage::Copy(int cx, int cy, int nCanvasWidth, int nCanvasHeight)
//{
//	BITMAP	bm, bmNew;
//	HBITMAP hNew;
//	BOOL	fStretch = (cx == -1) || (cy == -1);
//
//	::GetObject(m_hbitmap, sizeof(BITMAP), &bm);
//
//	HDC hdc = CreateCompatibleDC(m_hdc);
//
//	if(cx == -1)
//	{
//		if(cy == -1)
//		{	// Both are default.
//			cx = bm.bmWidth;
//			cy = bm.bmHeight;
//			fStretch = FALSE;
//		}
//		else
//		{	// Get cx from cy value
//			float	fltAspect = (float)bm.bmWidth / (float)bm.bmHeight;
//
//			cx = (int) ((float)cy * fltAspect);
//		}
//	}
//	else if(cy == -1)
//	{	// Get cy from cx value
//		float	fltAspect = (float)bm.bmHeight / (float)bm.bmWidth;
//
//		cy = (int) ((float)cx * fltAspect);
//	}
//
//	if((nCanvasWidth == -1) || (nCanvasHeight == -1))
//	{
//		if(cx < cy)
//		{
//			nCanvasWidth = cy;
//			nCanvasHeight = cy;
//		}
//		else
//		{
//			nCanvasWidth = cx;
//			nCanvasHeight = cx;
//		}
//	}
//
////	hNew = CreateCompatibleBitmap(m_hdc, cx, cy);
//#if !defined(SCREEN_176)
//	hNew = CreateCompatibleBitmap(m_hdc, nCanvasWidth*g_ScaleWidth, nCanvasHeight*g_ScaleHeight);
//#else
//	hNew = CreateCompatibleBitmap(m_hdc, nCanvasWidth, nCanvasHeight);
//#endif
//	SelectObject(hdc, hNew);
//
//	RECT rect;
//	
//	rect.left = 0;
//	rect.top = 0;
//	rect.right = nCanvasWidth;
//	rect.bottom = nCanvasHeight;
//
////	HBRUSH hbrushBG = CreateSolidBrush(GetPixel(0, 0));
//
//	FillRect(hdc, &rect, (HBRUSH)GetStockObject(WHITE_BRUSH));
////	FillRect(hdc, &rect, hbrushBG);
//
////	DeleteObject(hbrushBG);
//
//	if(DrawTransparent(hdc, 0, 0, cx, cy, GetPixel(0, 0)) )
//	{
//		HBITMAP hPrev = (HBITMAP) ::GetObject(hNew, sizeof(BITMAP), &bmNew);
//			
//		::SelectObject(hdc, hPrev);
//	}
//