AdvaImg plugin folder renaming

git-svn-id: http://svn.miranda-ng.org/main/trunk@2801 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c

1 files changed, 805 insertions, 0 deletions

diff --git a/plugins/AdvaImg/src/FreeImage/PluginICO.cpp b/plugins/AdvaImg/src/FreeImage/PluginICO.cpp
new file mode 100644
index 0000000000..d0ece3514c
--- /dev/null
+++ b/plugins/AdvaImg/src/FreeImage/PluginICO.cpp
@@ -0,0 +1,805 @@
+// ==========================================================
+// ICO Loader and Writer
+//
+// Design and implementation by
+// - Floris van den Berg (flvdberg@wxs.nl)
+// - Hervé Drolon (drolon@infonie.fr)
+//
+// This file is part of FreeImage 3
+//
+// COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY
+// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
+// THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE
+// OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED
+// CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT
+// THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY
+// SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL
+// PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER
+// THIS DISCLAIMER.
+//
+// Use at your own risk!
+// ==========================================================
+
+#include "FreeImage.h"
+#include "Utilities.h"
+
+// ----------------------------------------------------------
+//   Constants + headers
+// ----------------------------------------------------------
+
+#ifdef _WIN32
+#pragma pack(push, 1)
+#else
+#pragma pack(1)
+#endif
+
+// These next two structs represent how the icon information is stored
+// in an ICO file.
+
+typedef struct tagICONHEADER {
+	WORD			idReserved;   // reserved
+	WORD			idType;       // resource type (1 for icons)
+	WORD			idCount;      // how many images?
+} ICONHEADER;
+
+typedef struct tagICONDIRECTORYENTRY {
+	BYTE	bWidth;               // width of the image
+	BYTE	bHeight;              // height of the image (times 2)
+	BYTE	bColorCount;          // number of colors in image (0 if >=8bpp)
+	BYTE	bReserved;            // reserved
+	WORD	wPlanes;              // color Planes
+	WORD	wBitCount;            // bits per pixel
+	DWORD	dwBytesInRes;         // how many bytes in this resource?
+	DWORD	dwImageOffset;        // where in the file is this image
+} ICONDIRENTRY;
+
+#ifdef _WIN32
+#pragma pack(pop)
+#else
+#pragma pack()
+#endif
+
+// ==========================================================
+// Static helpers
+// ==========================================================
+
+/**  How wide, in bytes, would this many bits be, DWORD aligned ?
+*/
+static int 
+WidthBytes(int bits) {
+	return ((((bits) + 31)>>5)<<2);
+}
+
+/** Calculates the size of a single icon image
+@return Returns the size for that image
+*/
+static DWORD 
+CalculateImageSize(FIBITMAP* icon_dib) {
+	DWORD dwNumBytes = 0;
+
+	unsigned colors		= FreeImage_GetColorsUsed(icon_dib);
+	unsigned width		= FreeImage_GetWidth(icon_dib);
+	unsigned height		= FreeImage_GetHeight(icon_dib);
+	unsigned pitch		= FreeImage_GetPitch(icon_dib);
+
+	dwNumBytes = sizeof( BITMAPINFOHEADER );	// header
+	dwNumBytes += colors * sizeof(RGBQUAD);		// palette
+	dwNumBytes += height * pitch;				// XOR mask
+	dwNumBytes += height * WidthBytes(width);	// AND mask
+
+	return dwNumBytes;
+}
+
+/** Calculates the file offset for an icon image
+@return Returns the file offset for that image
+*/
+static DWORD 
+CalculateImageOffset(std::vector<FIBITMAP*>& vPages, int nIndex ) {
+	DWORD	dwSize;
+
+    // calculate the ICO header size
+    dwSize = sizeof(ICONHEADER); 
+    // add the ICONDIRENTRY's
+    dwSize += (DWORD)( vPages.size() * sizeof(ICONDIRENTRY));
+    // add the sizes of the previous images
+    for(int k = 0; k < nIndex; k++) {
+		FIBITMAP *icon_dib = (FIBITMAP*)vPages[k];
+		dwSize += CalculateImageSize(icon_dib);
+	}
+
+    return dwSize;
+}
+
+#ifdef FREEIMAGE_BIGENDIAN
+static void
+SwapInfoHeader(BITMAPINFOHEADER *header) {
+	SwapLong(&header->biSize);
+	SwapLong((DWORD *)&header->biWidth);
+	SwapLong((DWORD *)&header->biHeight);
+	SwapShort(&header->biPlanes);
+	SwapShort(&header->biBitCount);
+	SwapLong(&header->biCompression);
+	SwapLong(&header->biSizeImage);
+	SwapLong((DWORD *)&header->biXPelsPerMeter);
+	SwapLong((DWORD *)&header->biYPelsPerMeter);
+	SwapLong(&header->biClrUsed);
+	SwapLong(&header->biClrImportant);
+}
+
+static void
+SwapIconHeader(ICONHEADER *header) {
+	SwapShort(&header->idReserved);
+	SwapShort(&header->idType);
+	SwapShort(&header->idCount);
+}
+
+static void
+SwapIconDirEntries(ICONDIRENTRY *ent, int num) {
+	while(num) {
+		SwapShort(&ent->wPlanes);
+		SwapShort(&ent->wBitCount);
+		SwapLong(&ent->dwBytesInRes);
+		SwapLong(&ent->dwImageOffset);
+		num--;
+		ent++;
+	}
+}
+#endif
+
+// ==========================================================
+// Plugin Interface
+// ==========================================================
+
+static int s_format_id;
+
+// ==========================================================
+// Plugin Implementation
+// ==========================================================
+
+static const char * DLL_CALLCONV
+Format() {
+	return "ICO";
+}
+
+static const char * DLL_CALLCONV
+Description() {
+	return "Windows Icon";
+}
+
+static const char * DLL_CALLCONV
+Extension() {
+	return "ico";
+}
+
+static const char * DLL_CALLCONV
+RegExpr() {
+	return NULL;
+}
+
+static const char * DLL_CALLCONV
+MimeType() {
+	return "image/vnd.microsoft.icon";
+}
+
+static BOOL DLL_CALLCONV
+Validate(FreeImageIO *io, fi_handle handle) {
+	ICONHEADER icon_header;
+
+	io->read_proc(&icon_header, sizeof(ICONHEADER), 1, handle);
+#ifdef FREEIMAGE_BIGENDIAN
+	SwapIconHeader(&icon_header);
+#endif
+
+	return ((icon_header.idReserved == 0) && (icon_header.idType == 1) && (icon_header.idCount > 0));
+}
+
+static BOOL DLL_CALLCONV
+SupportsExportDepth(int depth) {
+	return (
+			(depth == 1) ||
+			(depth == 4) ||
+			(depth == 8) ||
+			(depth == 16) ||
+			(depth == 24) ||
+			(depth == 32)
+		);
+}
+
+static BOOL DLL_CALLCONV 
+SupportsExportType(FREE_IMAGE_TYPE type) {
+	return (type == FIT_BITMAP) ? TRUE : FALSE;
+}
+
+static BOOL DLL_CALLCONV
+SupportsNoPixels() {
+	return TRUE;
+}
+
+// ----------------------------------------------------------
+
+static void * DLL_CALLCONV
+Open(FreeImageIO *io, fi_handle handle, BOOL read) {
+	// Allocate memory for the header structure
+	ICONHEADER *lpIH = (ICONHEADER*)malloc(sizeof(ICONHEADER));
+	if(lpIH == NULL) {
+		return NULL;
+	}
+
+	if (read) {
+		// Read in the header
+		io->read_proc(lpIH, 1, sizeof(ICONHEADER), handle);
+#ifdef FREEIMAGE_BIGENDIAN
+		SwapIconHeader(lpIH);
+#endif
+
+		if (!(lpIH->idReserved == 0) || !(lpIH->idType == 1)) {
+			// Not an ICO file
+			free(lpIH);
+			return NULL;
+		}
+	}
+	else {
+		// Fill the header
+		lpIH->idReserved = 0;
+		lpIH->idType = 1;
+		lpIH->idCount = 0;
+	}
+
+	return lpIH;
+}
+
+static void DLL_CALLCONV
+Close(FreeImageIO *io, fi_handle handle, void *data) {
+	// free the header structure
+	ICONHEADER *lpIH = (ICONHEADER*)data;
+	free(lpIH);
+}
+
+// ----------------------------------------------------------
+
+static int DLL_CALLCONV
+PageCount(FreeImageIO *io, fi_handle handle, void *data) {
+	ICONHEADER *lpIH = (ICONHEADER*)data;
+
+	if(lpIH) {
+		return lpIH->idCount;
+	}
+	return 1;
+}
+
+// ----------------------------------------------------------
+
+static FIBITMAP*
+LoadStandardIcon(FreeImageIO *io, fi_handle handle, int flags, BOOL header_only) {
+	FIBITMAP *dib = NULL;
+
+	// load the BITMAPINFOHEADER
+	BITMAPINFOHEADER bmih;
+	io->read_proc(&bmih, sizeof(BITMAPINFOHEADER), 1, handle);
+#ifdef FREEIMAGE_BIGENDIAN
+	SwapInfoHeader(&bmih);
+#endif
+
+	// allocate the bitmap
+	int width  = bmih.biWidth;
+	int height = bmih.biHeight / 2; // height == xor + and mask
+	unsigned bit_count = bmih.biBitCount;
+	unsigned line   = CalculateLine(width, bit_count);
+	unsigned pitch  = CalculatePitch(line);
+
+	// allocate memory for one icon
+
+	dib = FreeImage_AllocateHeader(header_only, width, height, bit_count);
+
+	if (dib == NULL) {
+		return NULL;
+	}
+
+	if ( bmih.biBitCount <= 8 ) {
+		// read the palette data
+		io->read_proc(FreeImage_GetPalette(dib), CalculateUsedPaletteEntries(bit_count) * sizeof(RGBQUAD), 1, handle);
+#if FREEIMAGE_COLORORDER == FREEIMAGE_COLORORDER_RGB
+		RGBQUAD *pal = FreeImage_GetPalette(dib);
+		for(unsigned i = 0; i < CalculateUsedPaletteEntries(bit_count); i++) {
+			INPLACESWAP(pal[i].rgbRed, pal[i].rgbBlue);
+		}
+#endif
+	}
+	
+	if(header_only) {
+		// header only mode
+		return dib;
+	}
+
+	// read the icon
+	io->read_proc(FreeImage_GetBits(dib), height * pitch, 1, handle);
+
+#ifdef FREEIMAGE_BIGENDIAN
+	if (bit_count == 16) {
+		for(int y = 0; y < height; y++) {
+			WORD *pixel = (WORD *)FreeImage_GetScanLine(dib, y);
+			for(int x = 0; x < width; x++) {
+				SwapShort(pixel);
+				pixel++;
+			}
+		}
+	}
+#endif
+#if FREEIMAGE_COLORORDER == FREEIMAGE_COLORORDER_RGB
+	if (bit_count == 24 || bit_count == 32) {
+		for(int y = 0; y < height; y++) {
+			BYTE *pixel = FreeImage_GetScanLine(dib, y);
+			for(int x = 0; x < width; x++) {
+				INPLACESWAP(pixel[0], pixel[2]);
+				pixel += (bit_count>>3);
+			}
+		}
+	}
+#endif
+	// bitmap has been loaded successfully!
+
+	// convert to 32bpp and generate an alpha channel
+	if ((flags & ICO_MAKEALPHA) == ICO_MAKEALPHA) {
+		FIBITMAP *dib32 = FreeImage_ConvertTo32Bits(dib);
+		FreeImage_Unload(dib);
+
+		if (dib32 == NULL) {
+			return NULL;
+		}
+
+		int width_and	= WidthBytes(width);
+		BYTE *line_and	= (BYTE *)malloc(width_and);
+
+		if ( line_and == NULL ) {
+			FreeImage_Unload(dib32);
+			return NULL;
+		}
+
+		//loop through each line of the AND-mask generating the alpha channel, invert XOR-mask
+		for(int y = 0; y < height; y++) {
+			RGBQUAD *quad = (RGBQUAD *)FreeImage_GetScanLine(dib32, y);
+			io->read_proc(line_and, width_and, 1, handle);
+			for(int x = 0; x < width; x++) {
+				quad->rgbReserved = (line_and[x>>3] & (0x80 >> (x & 0x07))) != 0 ? 0 : 0xFF;
+				if ( quad->rgbReserved == 0 ) {
+					quad->rgbBlue ^= 0xFF;
+					quad->rgbGreen ^= 0xFF;
+					quad->rgbRed ^= 0xFF;
+				}
+				quad++;
+			}
+		}
+		free(line_and);
+
+		return dib32;
+	}
+
+	return dib;
+}
+
+static FIBITMAP * DLL_CALLCONV
+Load(FreeImageIO *io, fi_handle handle, int page, int flags, void *data) {
+	if (page == -1) {
+		page = 0;
+	}
+
+	BOOL header_only = (flags & FIF_LOAD_NOPIXELS) == FIF_LOAD_NOPIXELS;
+
+	if (handle != NULL) {
+		FIBITMAP *dib = NULL;
+
+		// get the icon header
+		ICONHEADER *icon_header = (ICONHEADER*)data;
+
+		if (icon_header) {
+			// load the icon descriptions
+			ICONDIRENTRY *icon_list = (ICONDIRENTRY*)malloc(icon_header->idCount * sizeof(ICONDIRENTRY));
+			if(icon_list == NULL) {
+				return NULL;
+			}
+			io->seek_proc(handle, sizeof(ICONHEADER), SEEK_SET);
+			io->read_proc(icon_list, icon_header->idCount * sizeof(ICONDIRENTRY), 1, handle);
+#ifdef FREEIMAGE_BIGENDIAN
+			SwapIconDirEntries(icon_list, icon_header->idCount);
+#endif
+
+			// load the requested icon
+			if (page < icon_header->idCount) {
+				// seek to the start of the bitmap data for the icon
+				io->seek_proc(handle, 0, SEEK_SET);
+				io->seek_proc(handle, icon_list[page].dwImageOffset, SEEK_CUR);
+
+				if ((icon_list[page].bWidth == 0) && (icon_list[page].bHeight == 0)) {
+					// Vista icon support
+					dib = FreeImage_LoadFromHandle(FIF_PNG, io, handle, header_only ? FIF_LOAD_NOPIXELS : PNG_DEFAULT);
+				}
+				else {
+					// standard icon support
+					// see http://msdn.microsoft.com/en-us/library/ms997538.aspx
+					dib = LoadStandardIcon(io, handle, flags, header_only);
+				}
+
+				free(icon_list);
+
+				return dib;
+
+			} else {
+				free(icon_list);
+				FreeImage_OutputMessageProc(s_format_id, "Page doesn't exist");
+			}
+		} else {
+			FreeImage_OutputMessageProc(s_format_id, "File is not an ICO file");
+		}
+	}
+
+	return NULL;
+}
+
+// ----------------------------------------------------------
+
+static BOOL 
+SaveStandardIcon(FreeImageIO *io, FIBITMAP *dib, fi_handle handle) {
+	BITMAPINFOHEADER *bmih = NULL;
+
+	// write the BITMAPINFOHEADER
+	bmih = FreeImage_GetInfoHeader(dib);
+	bmih->biHeight *= 2;	// height == xor + and mask
+#ifdef FREEIMAGE_BIGENDIAN
+	SwapInfoHeader(bmih);
+#endif
+	io->write_proc(bmih, sizeof(BITMAPINFOHEADER), 1, handle);
+#ifdef FREEIMAGE_BIGENDIAN
+	SwapInfoHeader(bmih);
+#endif
+	bmih->biHeight /= 2;
+
+	// write the palette data
+	if (FreeImage_GetPalette(dib) != NULL) {
+		RGBQUAD *pal = FreeImage_GetPalette(dib);
+		FILE_BGRA bgra;
+		for(unsigned i = 0; i < FreeImage_GetColorsUsed(dib); i++) {
+			bgra.b = pal[i].rgbBlue;
+			bgra.g = pal[i].rgbGreen;
+			bgra.r = pal[i].rgbRed;
+			bgra.a = pal[i].rgbReserved;
+			io->write_proc(&bgra, sizeof(FILE_BGRA), 1, handle);
+		}
+	}
+
+	// write the bits
+	int width			= bmih->biWidth;
+	int height			= bmih->biHeight;
+	unsigned bit_count	= bmih->biBitCount;
+	unsigned line		= CalculateLine(width, bit_count);
+	unsigned pitch		= CalculatePitch(line);
+	int size_xor		= height * pitch;
+	int size_and		= height * WidthBytes(width);
+
+	// XOR mask
+#ifdef FREEIMAGE_BIGENDIAN
+	if (bit_count == 16) {
+		WORD pixel;
+		for(unsigned y = 0; y < FreeImage_GetHeight(dib); y++) {
+			BYTE *line = FreeImage_GetScanLine(dib, y);
+			for(unsigned x = 0; x < FreeImage_GetWidth(dib); x++) {
+				pixel = ((WORD *)line)[x];
+				SwapShort(&pixel);
+				if (io->write_proc(&pixel, sizeof(WORD), 1, handle) != 1)
+					return FALSE;
+			}
+		}
+	} else
+#endif
+#if FREEIMAGE_COLORORDER == FREEIMAGE_COLORORDER_RGB
+	if (bit_count == 24) {
+		FILE_BGR bgr;
+		for(unsigned y = 0; y < FreeImage_GetHeight(dib); y++) {
+			BYTE *line = FreeImage_GetScanLine(dib, y);
+			for(unsigned x = 0; x < FreeImage_GetWidth(dib); x++) {
+				RGBTRIPLE *triple = ((RGBTRIPLE *)line)+x;
+				bgr.b = triple->rgbtBlue;
+				bgr.g = triple->rgbtGreen;
+				bgr.r = triple->rgbtRed;
+				if (io->write_proc(&bgr, sizeof(FILE_BGR), 1, handle) != 1)
+					return FALSE;
+			}
+		}
+	} else if (bit_count == 32) {
+		FILE_BGRA bgra;
+		for(unsigned y = 0; y < FreeImage_GetHeight(dib); y++) {
+			BYTE *line = FreeImage_GetScanLine(dib, y);
+			for(unsigned x = 0; x < FreeImage_GetWidth(dib); x++) {
+				RGBQUAD *quad = ((RGBQUAD *)line)+x;
+				bgra.b = quad->rgbBlue;
+				bgra.g = quad->rgbGreen;
+				bgra.r = quad->rgbRed;
+				bgra.a = quad->rgbReserved;
+				if (io->write_proc(&bgra, sizeof(FILE_BGRA), 1, handle) != 1)
+					return FALSE;
+			}
+		}
+	} else
+#endif
+#if defined(FREEIMAGE_BIGENDIAN) || FREEIMAGE_COLORORDER == FREEIMAGE_COLORORDER_RGB
+	{
+#endif
+		BYTE *xor_mask = FreeImage_GetBits(dib);
+		io->write_proc(xor_mask, size_xor, 1, handle);
+#if defined(FREEIMAGE_BIGENDIAN) || FREEIMAGE_COLORORDER == FREEIMAGE_COLORORDER_RGB
+	}
+#endif
+	// AND mask
+	BYTE *and_mask = (BYTE*)malloc(size_and);
+	if (!and_mask) {
+		return FALSE;
+	}
+
+	if(FreeImage_IsTransparent(dib)) {
+
+		if(bit_count == 32) {
+			// create the AND mask from the alpha channel
+
+			int width_and  = WidthBytes(width);
+			BYTE *and_bits = and_mask;
+
+			// clear the mask
+			memset(and_mask, 0, size_and);
+
+			for(int y = 0; y < height; y++) {
+				RGBQUAD *bits = (RGBQUAD*)FreeImage_GetScanLine(dib, y);
+
+				for(int x = 0; x < width; x++) {
+					if(bits[x].rgbReserved != 0xFF) {
+						// set any transparent color to full transparency
+						and_bits[x >> 3] |= (0x80 >> (x & 0x7)); 
+					}
+				}
+
+				and_bits += width_and;
+			}
+		} 
+		else if(bit_count <= 8) {
+			// create the AND mask from the transparency table
+
+			BYTE *trns = FreeImage_GetTransparencyTable(dib);
+
+			int width_and  = WidthBytes(width);
+			BYTE *and_bits = and_mask;
+
+			// clear the mask
+			memset(and_mask, 0, size_and);
+
+			switch(FreeImage_GetBPP(dib)) {
+				case 1:
+				{
+					for(int y = 0; y < height; y++) {
+						BYTE *bits = (BYTE*)FreeImage_GetScanLine(dib, y);
+						for(int x = 0; x < width; x++) {
+							// get pixel at (x, y)
+							BYTE index = (bits[x >> 3] & (0x80 >> (x & 0x07))) != 0;
+							if(trns[index] != 0xFF) {
+								// set any transparent color to full transparency
+								and_bits[x >> 3] |= (0x80 >> (x & 0x7)); 
+							}
+						}
+						and_bits += width_and;
+					}
+				}
+				break;
+
+				case 4:
+				{
+					for(int y = 0; y < height; y++) {
+						BYTE *bits = (BYTE*)FreeImage_GetScanLine(dib, y);
+						for(int x = 0; x < width; x++) {
+							// get pixel at (x, y)
+							BYTE shift = (BYTE)((1 - x % 2) << 2);
+							BYTE index = (bits[x >> 1] & (0x0F << shift)) >> shift;
+							if(trns[index] != 0xFF) {
+								// set any transparent color to full transparency
+								and_bits[x >> 3] |= (0x80 >> (x & 0x7)); 
+							}
+						}
+						and_bits += width_and;
+					}
+				}
+				break;
+
+				case 8:
+				{
+					for(int y = 0; y < height; y++) {
+						BYTE *bits = (BYTE*)FreeImage_GetScanLine(dib, y);
+						for(int x = 0; x < width; x++) {
+							// get pixel at (x, y)
+							BYTE index = bits[x];
+							if(trns[index] != 0xFF) {
+								// set any transparent color to full transparency
+								and_bits[x >> 3] |= (0x80 >> (x & 0x7)); 
+							}
+						}
+						and_bits += width_and;
+					}
+				}
+				break;
+
+			}
+		}
+	}
+	else {
+		// empty AND mask
+		memset(and_mask, 0, size_and);
+	}
+
+	io->write_proc(and_mask, size_and, 1, handle);
+	free(and_mask);
+
+	return TRUE;
+}
+
+static BOOL DLL_CALLCONV
+Save(FreeImageIO *io, FIBITMAP *dib, fi_handle handle, int page, int flags, void *data) {
+	ICONHEADER *icon_header = NULL;
+	std::vector<FIBITMAP*> vPages;
+	int k;
+
+	if (!dib || !handle || !data) {
+		return FALSE;
+	}
+
+	// check format limits
+	unsigned w = FreeImage_GetWidth(dib);
+	unsigned h = FreeImage_GetHeight(dib);
+	if ((w < 16) || (w > 256) || (h < 16) || (h > 256) || (w != h)) {
+		FreeImage_OutputMessageProc(s_format_id, "Unsupported icon size: width x height = %d x %d", w, h);
+		return FALSE;
+	}
+
+	if (page == -1) {
+		page = 0;
+	}
+	
+	// get the icon header
+	icon_header = (ICONHEADER*)data;
+
+	try {
+		FIBITMAP *icon_dib = NULL;
+
+		// load all icons
+		for(k = 0; k < icon_header->idCount; k++) {
+			icon_dib = Load(io, handle, k, flags, data);
+			if (!icon_dib) {
+				throw FI_MSG_ERROR_DIB_MEMORY;
+			}
+			vPages.push_back(icon_dib);
+		}
+
+		// add the page
+		icon_dib = FreeImage_Clone(dib);
+		vPages.push_back(icon_dib);
+		icon_header->idCount++;
+
+		// write the header
+		io->seek_proc(handle, 0, SEEK_SET);
+#ifdef FREEIMAGE_BIGENDIAN
+		SwapIconHeader(icon_header);
+#endif
+		io->write_proc(icon_header, sizeof(ICONHEADER), 1, handle);
+#ifdef FREEIMAGE_BIGENDIAN
+		SwapIconHeader(icon_header);
+#endif
+
+		// write all icons
+		// ...
+		
+		// save the icon descriptions
+
+		ICONDIRENTRY *icon_list = (ICONDIRENTRY *)malloc(icon_header->idCount * sizeof(ICONDIRENTRY));
+		if (!icon_list) {
+			throw FI_MSG_ERROR_MEMORY;
+		}
+		memset(icon_list, 0, icon_header->idCount * sizeof(ICONDIRENTRY));
+
+		for(k = 0; k < icon_header->idCount; k++) {
+			icon_dib = (FIBITMAP*)vPages[k];
+
+			// convert internal format to ICONDIRENTRY
+			// take into account Vista icons whose size is 256x256
+			const BITMAPINFOHEADER *bmih = FreeImage_GetInfoHeader(icon_dib);
+			icon_list[k].bWidth			= (bmih->biWidth > 255)  ? 0 : (BYTE)bmih->biWidth;
+			icon_list[k].bHeight		= (bmih->biHeight > 255) ? 0 : (BYTE)bmih->biHeight;
+			icon_list[k].bReserved		= 0;
+			icon_list[k].wPlanes		= bmih->biPlanes;
+			icon_list[k].wBitCount		= bmih->biBitCount;
+			if ( (icon_list[k].wPlanes * icon_list[k].wBitCount) >= 8 ) {
+				icon_list[k].bColorCount = 0;
+			} else {
+				icon_list[k].bColorCount = (BYTE)(1 << (icon_list[k].wPlanes * icon_list[k].wBitCount));
+			}
+			// initial guess (correct only for standard icons)
+			icon_list[k].dwBytesInRes	= CalculateImageSize(icon_dib);
+			icon_list[k].dwImageOffset = CalculateImageOffset(vPages, k);
+		}
+
+		// make a room for icon dir entries, until later update
+		const long directory_start = io->tell_proc(handle);
+		io->write_proc(icon_list, sizeof(ICONDIRENTRY) * icon_header->idCount, 1, handle);
+
+		// write the image bits for each image
+		
+		DWORD dwImageOffset = (DWORD)io->tell_proc(handle);
+
+		for(k = 0; k < icon_header->idCount; k++) {
+			icon_dib = (FIBITMAP*)vPages[k];
+			
+			if ((icon_list[k].bWidth == 0) && (icon_list[k].bHeight == 0)) {
+				// Vista icon support
+				FreeImage_SaveToHandle(FIF_PNG, icon_dib, io, handle, PNG_DEFAULT);
+			}
+			else {
+				// standard icon support
+				// see http://msdn.microsoft.com/en-us/library/ms997538.aspx
+				SaveStandardIcon(io, icon_dib, handle);
+			}
+
+			// update ICONDIRENTRY members			
+			DWORD dwBytesInRes = (DWORD)io->tell_proc(handle) - dwImageOffset;
+			icon_list[k].dwImageOffset = dwImageOffset;
+			icon_list[k].dwBytesInRes  = dwBytesInRes;
+			dwImageOffset += dwBytesInRes;
+		}
+
+		// update the icon descriptions
+		const long current_pos = io->tell_proc(handle);
+		io->seek_proc(handle, directory_start, SEEK_SET);
+#ifdef FREEIMAGE_BIGENDIAN
+		SwapIconDirEntries(icon_list, icon_header->idCount);
+#endif
+		io->write_proc(icon_list, sizeof(ICONDIRENTRY) * icon_header->idCount, 1, handle);
+		io->seek_proc(handle, current_pos, SEEK_SET);
+
+		free(icon_list);
+
+		// free the vector class
+		for(k = 0; k < icon_header->idCount; k++) {
+			icon_dib = (FIBITMAP*)vPages[k];
+			FreeImage_Unload(icon_dib);
+		}
+
+		return TRUE;
+
+	} catch(const char *text) {
+		// free the vector class
+		for(size_t k = 0; k < vPages.size(); k++) {
+			FIBITMAP *icon_dib = (FIBITMAP*)vPages[k];
+			FreeImage_Unload(icon_dib);
+		}
+		FreeImage_OutputMessageProc(s_format_id, text);
+		return FALSE;
+	}
+}
+
+// ==========================================================
+//   Init
+// ==========================================================
+
+void DLL_CALLCONV
+InitICO(Plugin *plugin, int format_id) {
+	s_format_id = format_id;
+
+	plugin->format_proc = Format;
+	plugin->description_proc = Description;
+	plugin->extension_proc = Extension;
+	plugin->regexpr_proc = RegExpr;
+	plugin->open_proc = Open;
+	plugin->close_proc = Close;
+	plugin->pagecount_proc = PageCount;
+	plugin->pagecapability_proc = NULL;
+	plugin->load_proc = Load;
+	plugin->save_proc = Save;
+	plugin->validate_proc = Validate;
+	plugin->mime_proc = MimeType;
+	plugin->supports_export_bpp_proc = SupportsExportDepth;
+	plugin->supports_export_type_proc = SupportsExportType;
+	plugin->supports_icc_profiles_proc = NULL;
+	plugin->supports_no_pixels_proc = SupportsNoPixels;
+}