/* AbiWord
*
* Copyright (C) 2003 Jordi Mas i Hern�ndez
* Copyright (C) 2003 Dom Lachowicz
* Win32 native plugin based on win32 IPicture interface *
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#include <stdlib.h>
#include <ocidl.h>
#include <olectl.h>
#include "ut_string.h"
#include "ut_bytebuf.h"
#include "png.h"
#include "ie_impGraphic.h"
#include "fg_GraphicRaster.h"
#include "ut_debugmsg.h"
#include "ut_assert.h"
#include "xap_Module.h"
#include "ut_assert.h"
/*******************************************************************/
/*******************************************************************/
/* GDIPLUS interface */
bool isGDIPlusAvailable ();
UT_Error GDIconvertGraphic (UT_ByteBuf * pBB, UT_ByteBuf* pBBOut);
void shutDownGDIPlus ();
static void _write_png( png_structp png_ptr,
png_bytep data,
png_size_t length )
{
UT_ByteBuf* bb = static_cast<UT_ByteBuf*>(png_get_io_ptr(png_ptr));
bb->append(data, length);
}
static void _write_flush(png_structp png_ptr)
{
// Empty Fuction.
}
//
// Creates a BITMAP file from a handle
//
static void CreateBMPFile(HWND hwnd, UT_ByteBuf & pBB, PBITMAPINFO pbi,
HBITMAP hBMP, HDC hDC)
{
BITMAPFILEHEADER hdr; // bitmap file-header
PBITMAPINFOHEADER pbih; // bitmap info-header
LPBYTE lpBits; // memory pointer
if (!hBMP) return;
pbih = (PBITMAPINFOHEADER) pbi;
lpBits = (LPBYTE) GlobalAlloc(GMEM_FIXED, pbih->biSizeImage);
if (!lpBits) return;
// Retrieve the color table (RGBQUAD array) and the bits
// (array of palette indices) from the DIB.
if (!GetDIBits(hDC, hBMP, 0, (WORD) pbih->biHeight, lpBits, pbi,
DIB_RGB_COLORS))
return;
hdr.bfType = 0x4d42; // 0x42 = "B" 0x4d = "M"
// Compute the size of the entire file.
hdr.bfSize = (DWORD) (sizeof(BITMAPFILEHEADER) +
pbih->biSize + pbih->biClrUsed
* sizeof(RGBQUAD) + pbih->biSizeImage);
hdr.bfReserved1 = 0;
hdr.bfReserved2 = 0;
// Compute the offset to the array of color indices.
hdr.bfOffBits = (DWORD) sizeof(BITMAPFILEHEADER) +
pbih->biSize + pbih->biClrUsed
* sizeof (RGBQUAD);
pBB.truncate (0);
// Copy the BITMAPFILEHEADER into the .BMP file.
pBB.append ((const UT_Byte *)&hdr, sizeof(BITMAPFILEHEADER));
pBB.append ((const UT_Byte *)pbih, sizeof(BITMAPINFOHEADER) + pbih->biClrUsed * sizeof (RGBQUAD));
// Copy the array of color indices into the .BMP file.
pBB.append ((const UT_Byte *)lpBits, (int) pbih->biSizeImage);
GlobalFree((HGLOBAL)lpBits);
}
//
// Creates a Bitmap info struct from a handle
//
static PBITMAPINFO CreateBitmapInfoStruct(HBITMAP hBmp)
{
BITMAP bmp;
PBITMAPINFO pbmi;
WORD cClrBits;
// Retrieve the bitmap's color format, width, and height.
if (!GetObject(hBmp, sizeof(BITMAP), (LPSTR)&bmp))
return NULL;
if (bmp.bmBitsPixel==16)
bmp.bmBitsPixel = 24; // 16 bit BMPs are not supported by all programs
// Convert the color format to a count of bits.
cClrBits = (WORD)(bmp.bmPlanes * bmp.bmBitsPixel);
if (cClrBits == 1)
cClrBits = 1;
else if (cClrBits <= 4)
cClrBits = 4;
else if (cClrBits <= 8)
cClrBits = 8;
else if (cClrBits <= 16)
cClrBits = 16;
else if (cClrBits <= 24)
cClrBits = 24;
else cClrBits = 32;
// Allocate memory for the BITMAPINFO structure. (This structure
// contains a BITMAPINFOHEADER structure and an array of RGBQUAD
// data structures.)
if (cClrBits != 24)
pbmi = (PBITMAPINFO) LocalAlloc(LPTR,
sizeof(BITMAPINFOHEADER) +
sizeof(RGBQUAD) * (1 << cClrBits));
else // There is no RGBQUAD array for the 24-bit-per-pixel format.
pbmi = (PBITMAPINFO) LocalAlloc(LPTR,
sizeof(BITMAPINFOHEADER));
// Initialize the fields in the BITMAPINFO structure.
pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
pbmi->bmiHeader.biWidth = bmp.bmWidth;
pbmi->bmiHeader.biHeight = bmp.bmHeight;
pbmi->bmiHeader.biPlanes = bmp.bmPlanes;
pbmi->bmiHeader.biBitCount = bmp.bmBitsPixel;
if (cClrBits < 24)
pbmi->bmiHeader.biClrUsed = (1<<cClrBits);
// If the bitmap is not compressed, set the BI_RGB flag.
pbmi->bmiHeader.biCompression = BI_RGB;
// Compute the number of bytes in the array of color
// indices and store the result in biSizeImage.
// For Windows NT/2000, the width must be DWORD aligned unless
// the bitmap is RLE compressed.
pbmi->bmiHeader.biSizeImage = ((pbmi->bmiHeader.biWidth * cClrBits +31) & ~31) /8
* pbmi->bmiHeader.biHeight;
// Set biClrImportant to 0, indicating that all of the
// device colors are important.
pbmi->bmiHeader.biClrImportant = 0;
return pbmi;
}
class IE_ImpGraphic_Win32Native : public IE_ImpGraphic
{
public:
virtual UT_Error convertGraphic(UT_ByteBuf* pBB,
UT_ByteBuf** ppBB)
{
if (!ppBB) return UT_ERROR;
UT_Error err = _convertGraphic(pBB);
if (err != UT_OK) return err;
*ppBB = m_pBB;
return UT_OK;
}
// This actually creates our FG_Graphic object for a PNG
virtual UT_Error importGraphic(UT_ByteBuf* pBB,
FG_Graphic ** ppfg)
{
UT_Error err = _convertGraphic(pBB);
if (err != UT_OK) return err;
/* Send Data back to AbiWord as PNG */
FG_GraphicRaster *pFGR;
pFGR = new FG_GraphicRaster();
if(pFGR == NULL)
return UT_IE_NOMEMORY;
if(!pFGR->setRaster_PNG(m_pBB)) {
DELETEP(pFGR);
return UT_IE_FAKETYPE;
}
*ppfg = static_cast<FG_Graphic *>(pFGR);
return UT_OK;
}
private:
//
// Entry point for conversion
//
UT_Error _convertGraphic(UT_ByteBuf * pBB)
{
IPicture* pPicture = NULL;
IStream* stream;
HGLOBAL hG;
HBITMAP hBitmap;
OLE_HANDLE* hB;
PBITMAPINFO bi;
UT_ByteBuf bBufBMP;
UT_Error err;
/* If the system has GDI+, use it*/
if (isGDIPlusAvailable())
{
m_pBB = new UT_ByteBuf();
return GDIconvertGraphic(pBB, m_pBB);
}
// We need to store the incoming bytebuffer in a Windows global heap
size_t nBlockLen = pBB->getLength();
hG = GlobalAlloc(GPTR, nBlockLen);
if (!hG)
return UT_IE_NOMEMORY;
CopyMemory(hG, pBB->getPointer(0), nBlockLen);
// Create a stream from heap
HRESULT hr = CreateStreamOnHGlobal(hG,false,&stream);
if (!SUCCEEDED(hr) || !stream)
{
GlobalFree(hG);
return UT_IE_NOMEMORY;
}
hr = OleLoadPicture(stream,0,false,IID_IPicture,(void**)&pPicture);
stream->Release();
GlobalFree(hG);
if (!SUCCEEDED(hr) || !pPicture)
{
return UT_IE_UNKNOWNTYPE;
}
pPicture->get_Handle((unsigned int*)&hB);
hBitmap = (HBITMAP)CopyImage(hB,IMAGE_BITMAP,0,0,LR_COPYRETURNORG);
HWND hWnd = GetDesktopWindow();
// Create a BMP file from a BITMAP
bi = CreateBitmapInfoStruct(hBitmap);
CreateBMPFile(hWnd, bBufBMP, bi, hBitmap, GetDC(hWnd));
LocalFree ((HLOCAL)bi);
InitializePrivateClassData();
/* Read Header Data */
err = Read_BMP_Header(&bBufBMP);
/*
It's not a bitmap, then we have to rendered it into a device
context and get a bitmap from there. Case wmf graphics
*/
if (err)
{
if (err!=UT_IE_BOGUSDOCUMENT)
{
pPicture->Release();
return err;
}
long nWidth = 0;
long nHeight = 0;
long nScaleToWidth= 500;
long nScaleToHeight= 500;
RECT rc, rect;
BYTE *imagedata;
HBITMAP hBit;
HBITMAP hOld;
BITMAPINFO bmi;
HDC hWndDC = GetDC(hWnd);
HDC hMemDC = CreateCompatibleDC(hWndDC);
HBRUSH hBrush = (HBRUSH)GetCurrentObject(hMemDC, OBJ_BRUSH);
pPicture->get_Width (&nWidth);
pPicture->get_Height(&nHeight);
bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bmi.bmiHeader.biWidth = nScaleToWidth;
bmi.bmiHeader.biHeight = nScaleToHeight;
bmi.bmiHeader.biPlanes = 1;
bmi.bmiHeader.biBitCount = 24; // as we want true-color
bmi.bmiHeader.biCompression = BI_RGB; // no compression
bmi.bmiHeader.biSizeImage = (((bmi.bmiHeader.biWidth * bmi.bmiHeader.biBitCount + 31) & ~31) >> 3) * bmi.bmiHeader.biHeight;
bmi.bmiHeader.biXPelsPerMeter = 0;
bmi.bmiHeader.biYPelsPerMeter = 0;
bmi.bmiHeader.biClrImportant = 0;
bmi.bmiHeader.biClrUsed = 0; // we are not using palette
hBit = CreateDIBSection(hMemDC,&bmi,DIB_RGB_COLORS,(void**)&imagedata,0,0);
hOld = (HBITMAP) SelectObject(hMemDC, hBit);
rect.left = 0;
rect.top = nScaleToHeight;
rect.right = nScaleToWidth;
rect.bottom = 0;
FillRect(hMemDC, &rect, hBrush);
pPicture->Render(hMemDC, 0,0, nScaleToWidth, nScaleToHeight, 0, nHeight,
nWidth, -nHeight, &rc);
hBit = (HBITMAP)SelectObject(hMemDC, hOld);
bi = CreateBitmapInfoStruct(hBit);
CreateBMPFile(hWnd, bBufBMP, &bmi, hBit, hMemDC);
LocalFree ((HLOCAL)bi);
DeleteDC(hMemDC);
DeleteDC(hWndDC);
DeleteObject(hBrush);
DeleteObject(hBit);
err = Read_BMP_Header(&bBufBMP);
if (err)
{
pPicture->Release();
return err;
}
}
pPicture->Release();
if ((err = Initialize_PNG()))
{
return err;
}
/* Read Palette, if no palette set Header accordingly */
if(m_iBitsPerPlane < 24)
{
if ((err = Convert_BMP_Palette(&bBufBMP)))
return err;
}
else
{
UT_uint16 bitsPerChannel;
UT_uint16 colorType;
if (m_iBitsPerPlane == 24) {
bitsPerChannel = 8;
colorType = PNG_COLOR_TYPE_RGB;
} else if (m_iBitsPerPlane == 32) {
bitsPerChannel = 8;
colorType = PNG_COLOR_TYPE_RGB_ALPHA;
} else if (m_iBitsPerPlane == 48) {
bitsPerChannel = 16;
colorType = PNG_COLOR_TYPE_RGB;
} else if (m_iBitsPerPlane == 64) {
bitsPerChannel = 16;
colorType = PNG_COLOR_TYPE_RGB_ALPHA;
} else {
return UT_ERROR;
}
png_set_IHDR ( m_pPNG,
m_pPNGInfo,
m_iWidth,
m_iHeight,
bitsPerChannel,
colorType,
PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT,
PNG_FILTER_TYPE_DEFAULT );
}
if ((err = Convert_BMP(&bBufBMP)))
{
return err;
}
/* Clean Up Memory Used */
FREEP(m_pPNGInfo->palette);
png_destroy_write_struct(&m_pPNG, &m_pPNGInfo);
return UT_OK;
}
UT_Error Read_BMP_Header(UT_ByteBuf* pBB)
{
/* Stepping Through the Header Data first all the File Info
* Then the Image Info until reached the end of the image Header Size
* Note some simple checks for data out of bounds are included
*/
/* File Info Starts Here */
m_iBytesRead = 0;
m_iFileType = Read2Bytes(pBB,m_iBytesRead);
if (m_iFileType != 0x4D42) return UT_IE_BOGUSDOCUMENT;
m_iFileSize = Read4Bytes(pBB,m_iBytesRead);
m_iXHotspot = Read2Bytes(pBB,m_iBytesRead);
m_iYHotspot = Read2Bytes(pBB,m_iBytesRead);
m_iOffset = Read4Bytes(pBB,m_iBytesRead);
/* Image Info Starts Here */
m_iHeaderSize = Read4Bytes(pBB,m_iBytesRead);
if (m_bHeaderDone) return UT_IE_BOGUSDOCUMENT; /* More Header Info Needed */
m_bOldBMPFormat = (m_iHeaderSize <=12) ? true : false;
m_iWidth = (m_bOldBMPFormat) ?
static_cast<UT_sint32>(Read2Bytes(pBB,m_iBytesRead) ):
static_cast<UT_sint32>(Read4Bytes(pBB,m_iBytesRead) );
m_iHeight = (m_bOldBMPFormat) ?
static_cast<UT_sint32>(Read2Bytes(pBB,m_iBytesRead) ):
static_cast<UT_sint32>(Read4Bytes(pBB,m_iBytesRead) );
if (m_bHeaderDone) return UT_IE_BOGUSDOCUMENT; /* More Header Info Needed */
m_iPlanes = Read2Bytes(pBB,m_iBytesRead);
if (m_bHeaderDone) return UT_IE_BOGUSDOCUMENT; /* More Header Info Needed */
if (m_iPlanes != 1) return UT_IE_BOGUSDOCUMENT;
m_iBitsPerPlane = Read2Bytes(pBB,m_iBytesRead);
if (m_bHeaderDone) return UT_OK;
/* This rest of the header is read but not normally required */
m_iCompression = Read4Bytes(pBB,m_iBytesRead);
if (m_iCompression != 0) return UT_IE_BOGUSDOCUMENT;
if (m_bHeaderDone) return UT_OK;
m_iImageSize = Read4Bytes(pBB,m_iBytesRead);
if (m_bHeaderDone) return UT_OK;
m_iXResolution = Read4Bytes(pBB,m_iBytesRead);
if (m_bHeaderDone) return UT_OK;
m_iYResolution = Read4Bytes(pBB,m_iBytesRead);
if (m_bHeaderDone) return UT_OK;
m_iClrUsed = Read4Bytes(pBB,m_iBytesRead);
if (m_bHeaderDone) return UT_OK;
m_iClrImportant = Read4Bytes(pBB,m_iBytesRead);
if (m_bHeaderDone) return UT_OK;
m_iResolutionUnits = Read2Bytes(pBB,m_iBytesRead);
if (m_bHeaderDone) return UT_OK;
m_iPadding = Read2Bytes(pBB,m_iBytesRead);
if (m_bHeaderDone) return UT_OK;
m_iOrigin = Read2Bytes(pBB,m_iBytesRead);
if (m_bHeaderDone) return UT_OK;
m_iHalfToning = Read2Bytes(pBB,m_iBytesRead);
if (m_bHeaderDone) return UT_OK;
m_iHalfToningParam1 = Read4Bytes(pBB,m_iBytesRead);
if (m_bHeaderDone) return UT_OK;
m_iHalfToningParam2 = Read4Bytes(pBB,m_iBytesRead);
if (m_bHeaderDone) return UT_OK;
m_iClrEncoding = Read4Bytes(pBB,m_iBytesRead);
if (m_bHeaderDone) return UT_OK;
m_iIdentifier = Read4Bytes(pBB,m_iBytesRead);
if (m_bHeaderDone) return UT_OK;
/* Document Using non-standard HeaderSize Assume OK */
return UT_OK;
}
UT_Error Initialize_PNG()
{
/* Set up png structures for writing */
m_pPNG = png_create_write_struct( PNG_LIBPNG_VER_STRING,
static_cast<void*>(NULL),
NULL,
NULL );
if( m_pPNG == NULL )
{
return UT_ERROR;
}
m_pPNGInfo = png_create_info_struct(m_pPNG);
if ( m_pPNGInfo == NULL )
{
png_destroy_write_struct(&m_pPNG, static_cast<png_infopp>(NULL));
return UT_ERROR;
}
/* Set error handling if you are using the setjmp/longjmp method (this is
* the normal method of doing things with libpng). REQUIRED unless you
* set up your own error handlers in the png_create_read_struct() earlier.
*/
if (setjmp(m_pPNG->jmpbuf))
{
/* Free all of the memory associated with the png_ptr and info_ptr */
png_destroy_write_struct(&m_pPNG, &m_pPNGInfo);
/* If we get here, we had a problem reading the file */
return UT_ERROR;
}
m_pBB = new UT_ByteBuf; /* Byte Buffer for Converted Data */
/* Setting up the Data Writing Function */
png_set_write_fn(m_pPNG, static_cast<void *>(m_pBB), static_cast<png_rw_ptr>(_write_png), static_cast<png_flush_ptr>(_write_flush));
return UT_OK;
}
UT_Error Convert_BMP_Palette(UT_ByteBuf* pBB)
{
/* Reset error handling for libpng */
if (setjmp(m_pPNG->jmpbuf))
{
png_destroy_write_struct(&m_pPNG, &m_pPNGInfo);
return UT_ERROR;
}
png_set_IHDR ( m_pPNG,
m_pPNGInfo,
m_iWidth,
m_iHeight,
m_iBitsPerPlane,
PNG_COLOR_TYPE_PALETTE,
PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT,
PNG_FILTER_TYPE_DEFAULT );
UT_uint32 iOffset = m_iHeaderSize + 14;
UT_uint32 numClrs = (m_iClrUsed > 0) ?
m_iClrUsed :
(m_iOffset - iOffset)/((m_bOldBMPFormat)?3:4);
png_colorp palette = static_cast<png_colorp>(png_malloc(m_pPNG, numClrs * sizeof(png_color)));
for (UT_uint32 i=0; i < numClrs; i++)
{
palette[i].blue = ReadByte(pBB,iOffset++);
palette[i].green = ReadByte(pBB,iOffset++);
palette[i].red = ReadByte(pBB,iOffset++);
if(!m_bOldBMPFormat) iOffset++;
}
if (iOffset > m_iOffset) return UT_IE_BOGUSDOCUMENT;
png_set_PLTE( m_pPNG, m_pPNGInfo, palette, numClrs );
return UT_OK;
}
UT_Error Convert_BMP(UT_ByteBuf* pBB)
{
/* Reset error handling for libpng */
if (setjmp(m_pPNG->jmpbuf))
{
png_destroy_write_struct(&m_pPNG, &m_pPNGInfo);
return UT_ERROR;
}
png_write_info(m_pPNG,m_pPNGInfo);
const UT_Byte* row_data;
UT_sint32 row;
UT_uint32 col;
UT_uint32 position;
UT_uint32 row_width = m_iWidth * m_iBitsPerPlane / 8;
while ((row_width & 3) != 0) row_width++;
UT_Byte* row_transformed_data = new UT_Byte[row_width];
switch (m_iBitsPerPlane)
{
case 1:
case 4:
case 8:
case 16:
for (row=m_iHeight-1; row >= 0; row--)
{
/* Calculating the start of each row */
position=m_iOffset + row*row_width;
row_data = reinterpret_cast<const unsigned char *>(pBB->getPointer(position));
png_write_rows(m_pPNG,const_cast<png_byte **>(reinterpret_cast<const png_byte **>(&row_data)),1);
}
break;
case 24:
case 48:
for (row=m_iHeight-1; row >= 0; row--)
{
/* Calculating the start of each row */
position=m_iOffset + row*row_width;
/* Transforming the b/r to r/b */
for (UT_uint32 i=0, col=0; i < m_iWidth; i++,col+=3)
{
row_transformed_data[col+0] = (UT_Byte)*pBB->getPointer(position+col+2);
row_transformed_data[col+1] = (UT_Byte)*pBB->getPointer(position+col+1);
row_transformed_data[col+2] = (UT_Byte)*pBB->getPointer(position+col+0);
}
png_write_rows(m_pPNG,&row_transformed_data,1);
}
break;
case 32:
case 64:
for (row=m_iHeight-1; row >= 0; row--)
{
/* Calculating the start of each row */
position=m_iOffset + row*row_width;
/* Transforming the b/r to r/b */
for (UT_uint32 i=0, col=0; i < m_iWidth; i++,col+=4)
{
row_transformed_data[col+0] = (UT_Byte)*pBB->getPointer(position+col+2);
row_transformed_data[col+1] = (UT_Byte)*pBB->getPointer(position+col+1);
row_transformed_data[col+2] = (UT_Byte)*pBB->getPointer(position+col+0);
row_transformed_data[col+3] = (UT_Byte)*pBB->getPointer(position+col+3);
}
png_write_rows(m_pPNG,&row_transformed_data,1);
}
break;
default:
return UT_IE_BOGUSDOCUMENT;
break;
}
delete [] row_transformed_data;
png_write_end(m_pPNG,m_pPNGInfo);
return UT_OK;
}
UT_Byte ReadByte (UT_ByteBuf* pBB,
UT_uint32 offset)
{
return ( static_cast<const UT_Byte>(ReadBytes(pBB,offset,1) ));
}
UT_uint16 Read2Bytes(UT_ByteBuf* pBB,
UT_uint32 offset)
{
return ( static_cast<const UT_uint16>(ReadBytes(pBB,offset,2) ));
}
UT_uint32 Read4Bytes(UT_ByteBuf* pBB,
UT_uint32 offset)
{
return ( ReadBytes(pBB,offset,4) );
}
UT_uint32 ReadBytes(UT_ByteBuf* pBB,
UT_uint32 offset,
UT_uint32 num_bytes)
{
UT_return_val_if_fail (num_bytes <= 4, 0);
UT_return_val_if_fail ((m_iBytesRead + num_bytes) <= pBB->getLength(), 0);
m_iBytesRead+=num_bytes;
if (m_iHeaderSize)
{
m_bHeaderDone = (m_iBytesRead >= m_iHeaderSize + 14) ?
true :
false;
}
UT_uint32 result = 0;
const UT_Byte* pByte;
for (UT_uint32 i=0; i<num_bytes; i++)
{
pByte = pBB->getPointer(offset+i);
result |= *pByte << (i*8);
}
return (result);
}
void InitializePrivateClassData()
{
m_iFileType=0;
m_iFileSize=0;
m_iXHotspot=0;
m_iYHotspot=0;
m_iOffset=0;
m_iHeaderSize=0;
m_iWidth=0;
m_iHeight=0;
m_iPlanes=0;
m_iBitsPerPlane=0;
m_iCompression=0;
m_iImageSize=0;
m_iXResolution=0;
m_iYResolution=0;
m_iClrUsed=0;
m_iClrImportant=0;
m_iResolutionUnits=0;
m_iPadding=0;
m_iOrigin=0;
m_iHalfToning=0;
m_iHalfToningParam1=0;
m_iHalfToningParam2=0;
m_iClrEncoding=0;
m_iIdentifier=0;
m_iBytesRead=0;
m_bOldBMPFormat=false;
m_bHeaderDone=false;
}
// PNG structures used
png_structp m_pPNG; // libpng structure for the PNG Object
png_infop m_pPNGInfo; // libpng structure for info on the PNG Object
// BMP File Header Data
UT_uint16 m_iFileType; // type - 'BM' for Bitmaps
UT_uint32 m_iFileSize; // file size in bytes
UT_uint16 m_iXHotspot; // 0 or x hotspot
UT_uint16 m_iYHotspot; // 0 or y hotspot
UT_uint32 m_iOffset; // Offset to BMP image
// BMP Header Data
UT_uint32 m_iHeaderSize; // Size of Header Data
UT_sint32 m_iWidth; // Image Width in pixels
UT_sint32 m_iHeight; // Image Height in pixels
UT_uint16 m_iPlanes; // Number of Planes == 1
UT_uint16 m_iBitsPerPlane; // Bit per pixel
UT_uint32 m_iCompression; // compression flag
UT_uint32 m_iImageSize; // Image size in bytes
UT_uint32 m_iXResolution; // Horizontal Resolution (Pels/Meter)
UT_uint32 m_iYResolution; // Vertical Resolution (Pels/Meter)
UT_uint32 m_iClrUsed; // Color Table Size
UT_uint32 m_iClrImportant; // Important Color Count
UT_uint16 m_iResolutionUnits; // Units of Measure
UT_uint16 m_iPadding; // Reserved
UT_uint16 m_iOrigin; // Recording Algorithm
UT_uint16 m_iHalfToning; // Halftoning Algorithm
UT_uint32 m_iHalfToningParam1;// Size Value 1
UT_uint32 m_iHalfToningParam2;// Size Value 2
UT_uint32 m_iClrEncoding; // Color Encoding
UT_uint32 m_iIdentifier; //
// BMP Utility Data
UT_uint32 m_iBytesRead; // Number of Bytes Read
bool m_bOldBMPFormat; // Older smaller file type
bool m_bHeaderDone; // Check to see if finshed Reading Header
UT_ByteBuf* m_pBB; // pBB Converted to PNG File
};
/*******************************************************************/
/*******************************************************************/
class IE_ImpGraphicWin32Native_Sniffer : public IE_ImpGraphicSniffer
{
public:
virtual UT_Confidence_t recognizeContents (const char * szBuf,
UT_uint32 iNumbytes)
{
return UT_CONFIDENCE_POOR;
}
virtual UT_Confidence_t recognizeSuffix (const char * szSuffix)
{
static const char* szExtensions[]={".bmp", ".emf", ".gif", ".ico", ".jpg", ".jpeg", ".wmf"};
for (int i =0; i<sizeof(szExtensions)/sizeof(char*); i++)
{
if (UT_stricmp(szSuffix, szExtensions[i]) == 0)
return UT_CONFIDENCE_PERFECT;
}
return UT_CONFIDENCE_ZILCH;
}
virtual bool getDlgLabels (const char ** pszDesc,
const char ** pszSuffixList,
IEGraphicFileType * ft)
{
*pszDesc = "BMP, GIF, JPEG Images";
*pszSuffixList = "*.bmp; *.emf; *.gif; *.ico; *.jpg; *.jpeg; *.wmf";
*ft = getType ();
return true;
}
virtual UT_Error constructImporter (IE_ImpGraphic ** ppieg)
{
*ppieg = new IE_ImpGraphic_Win32Native();
if (*ppieg == NULL)
return UT_IE_NOMEMORY;
return UT_OK;
}
};
/*******************************************************************/
/*******************************************************************/
ABI_PLUGIN_DECLARE("Win32NativeGraphics")
static IE_ImpGraphicWin32Native_Sniffer * m_impSniffer = 0;
ABI_FAR_CALL
int abi_plugin_register (XAP_ModuleInfo * mi)
{
if (!m_impSniffer)
{
m_impSniffer = new IE_ImpGraphicWin32Native_Sniffer();
}
else
{
m_impSniffer->ref();
}
mi->name = "BMP, JPG, GIF Win32 Import Plugin";
mi->desc = "Import JPG, GIF, WMF Images";
mi->version = ABI_VERSION_STRING;
mi->author = "Jordi Mas i Hern�ndez and Dom Lachowicz";
mi->usage = "No Usage";
IE_ImpGraphic::registerImporter (m_impSniffer);
return 1;
}
ABI_FAR_CALL
int abi_plugin_unregister (XAP_ModuleInfo * mi)
{
mi->name = 0;
mi->desc = 0;
mi->version = 0;
mi->author = 0;
mi->usage = 0;
UT_ASSERT (m_impSniffer);
IE_ImpGraphic::unregisterImporter (m_impSniffer);
if (!m_impSniffer->unref())
{
m_impSniffer = 0;
}
return 1;
}
ABI_FAR_CALL
int abi_plugin_supports_version (UT_uint32 major, UT_uint32 minor,
UT_uint32 release)
{
return 1;
}