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/*
Plugin of Miranda IM for reading/writing PNG images.
Copyright (c) 2004-06 George Hazan (ghazan@postman.ru)
Portions of this code are gotten from the libpng codebase.
Copyright 2000, Willem van Schaik. For conditions of distribution and
use, see the copyright/license/disclaimer notice in png.h
Miranda IM: the free icq client for MS Windows
Copyright (C) 2000-2002 Richard Hughes, Roland Rabien & Tristan Van de Vreede
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 "stdafx.h"
static const PLUGININFOEX pluginInfoEx = {
sizeof(PLUGININFOEX),
__PLUGIN_NAME,
PLUGIN_MAKE_VERSION(__MAJOR_VERSION, __MINOR_VERSION, __RELEASE_NUM, __BUILD_NUM),
__DESCRIPTION,
__AUTHOR,
__COPYRIGHT,
__AUTHORWEB,
UNICODE_AWARE | STATIC_PLUGIN,
// {7C070F7C-459E-46b7-8E6D-BC6EFAA22F78}
{0x7c070f7c, 0x459e, 0x46b7, {0x8e, 0x6d, 0xbc, 0x6e, 0xfa, 0xa2, 0x2f, 0x78}}
};
// Resize /////////////////////////////////////////////////////////////////////////////////////////
// Returns a copy of the bitmap with the size especified
// !! the caller is responsible for destroying the original bitmap when it is no longer needed !!
// wParam = ResizeBitmap *
// lParam = NULL
// return NULL on error, ResizeBitmap->hBmp if don't need to resize or a new HBITMAP if resized
static INT_PTR serviceBmpFilterResizeBitmap(WPARAM wParam, LPARAM)
{
ResizeBitmap *info = (ResizeBitmap *)wParam;
if (info == nullptr || info->size != sizeof(ResizeBitmap)
|| info->hBmp == nullptr
|| info->max_width < 0 || info->max_height < 0
|| (info->fit & ~RESIZEBITMAP_FLAG_DONT_GROW) < RESIZEBITMAP_STRETCH
|| (info->fit & ~RESIZEBITMAP_FLAG_DONT_GROW) > RESIZEBITMAP_MAKE_SQUARE)
return 0;
// Well, lets do it
// Calc final size
BITMAP bminfo;
GetObject(info->hBmp, sizeof(bminfo), &bminfo);
int width = info->max_width == 0 ? bminfo.bmWidth : info->max_width;
int height = info->max_height == 0 ? bminfo.bmHeight : info->max_height;
int xOrig = 0;
int yOrig = 0;
int widthOrig = bminfo.bmWidth;
int heightOrig = bminfo.bmHeight;
if (widthOrig == 0 || heightOrig == 0)
return 0;
switch (info->fit & ~RESIZEBITMAP_FLAG_DONT_GROW) {
case RESIZEBITMAP_STRETCH:
// Do nothing
break;
case RESIZEBITMAP_KEEP_PROPORTIONS:
if (height * widthOrig / heightOrig <= width) {
if (info->fit & RESIZEBITMAP_FLAG_DONT_GROW)
height = min(height, bminfo.bmHeight);
width = height * widthOrig / heightOrig;
}
else {
if (info->fit & RESIZEBITMAP_FLAG_DONT_GROW)
width = min(width, bminfo.bmWidth);
height = width * heightOrig / widthOrig;
}
break;
case RESIZEBITMAP_MAKE_SQUARE:
if (info->fit & RESIZEBITMAP_FLAG_DONT_GROW) {
width = min(width, bminfo.bmWidth);
height = min(height, bminfo.bmHeight);
}
width = height = min(width, height);
// Do not break. Use crop calcs to make size
case RESIZEBITMAP_CROP:
if (heightOrig * width / height >= widthOrig) {
heightOrig = widthOrig * height / width;
yOrig = (bminfo.bmHeight - heightOrig) / 2;
}
else {
widthOrig = heightOrig * width / height;
xOrig = (bminfo.bmWidth - widthOrig) / 2;
}
break;
}
if ((width == bminfo.bmWidth && height == bminfo.bmHeight) ||
((info->fit & RESIZEBITMAP_FLAG_DONT_GROW) && !(info->fit & RESIZEBITMAP_MAKE_SQUARE) && width > bminfo.bmWidth && height > bminfo.bmHeight)) {
// Do nothing
return (INT_PTR)info->hBmp;
}
FIBITMAP *dib = FreeImage_CreateDIBFromHBITMAP(info->hBmp);
if (dib == nullptr)
return 0;
FIBITMAP *dib_tmp;
if (xOrig > 0 || yOrig > 0)
dib_tmp = FreeImage_Copy(dib, xOrig, yOrig, xOrig + widthOrig, yOrig + heightOrig);
else
dib_tmp = dib;
if (dib_tmp == nullptr) {
FreeImage_Unload(dib);
return 0;
}
FIBITMAP *dib_new = FreeImage_Rescale(dib_tmp, width, height, FILTER_CATMULLROM);
HBITMAP bitmap_new = FreeImage_CreateHBITMAPFromDIB(dib_new);
if (dib_new != dib_tmp)
FreeImage_Unload(dib_new);
if (dib_tmp != dib)
FreeImage_Unload(dib_tmp);
FreeImage_Unload(dib);
return (INT_PTR)bitmap_new;
}
///////////////////////////////////////////////////////////////////////////////
// Load - initializes the plugin instance
static INT_PTR serviceLoad(WPARAM wParam, LPARAM lParam)
{
char *lpszFilename = (char *)wParam;
if (lpszFilename == nullptr)
return 0;
FREE_IMAGE_FORMAT fif = FIF_UNKNOWN;
if (lParam & IMGL_WCHAR)
fif = FreeImage_GetFileTypeU((wchar_t *)lpszFilename, 0);
else
fif = FreeImage_GetFileType(lpszFilename, 0);
if (fif == FIF_UNKNOWN) {
if (lParam & IMGL_WCHAR)
fif = FreeImage_GetFIFFromFilenameU((wchar_t *)lpszFilename);
else
fif = FreeImage_GetFIFFromFilename(lpszFilename);
}
// check that the plugin has reading capabilities ...
if ((fif != FIF_UNKNOWN) && FreeImage_FIFSupportsReading(fif)) {
// ok, let's load the file
FIBITMAP *dib;
if (lParam & IMGL_WCHAR)
dib = FreeImage_LoadU(fif, (wchar_t *)lpszFilename, 0);
else
dib = FreeImage_Load(fif, lpszFilename, 0);
if (dib == nullptr || (lParam & IMGL_RETURNDIB))
return (INT_PTR)dib;
HBITMAP hbm = FreeImage_CreateHBITMAPFromDIB(dib);
FreeImage_Unload(dib);
FreeImage_CorrectBitmap32Alpha(hbm, FALSE);
return (INT_PTR)hbm;
}
return NULL;
}
static INT_PTR serviceLoadFromMem(WPARAM wParam, LPARAM lParam)
{
IMGSRVC_MEMIO *mio = (IMGSRVC_MEMIO *)wParam;
if (mio->iLen == 0 || mio->pBuf == nullptr)
return 0;
FIMEMORY *hmem = FreeImage_OpenMemory((BYTE *)mio->pBuf, mio->iLen);
FREE_IMAGE_FORMAT fif = (mio->fif != FIF_UNKNOWN) ? mio->fif : mio->fif = FreeImage_GetFileTypeFromMemory(hmem, 0);
FIBITMAP *dib = FreeImage_LoadFromMemory(fif, hmem, mio->flags);
FreeImage_CloseMemory(hmem);
if (dib == nullptr || (lParam & IMGL_RETURNDIB))
return (INT_PTR)dib;
HBITMAP hbm = FreeImage_CreateHBITMAPFromDIB(dib);
FreeImage_Unload(dib);
return (INT_PTR)hbm;
}
static INT_PTR serviceSave(WPARAM wParam, LPARAM lParam)
{
IMGSRVC_INFO *isi = (IMGSRVC_INFO*)wParam;
if (isi == nullptr)
return 0;
if (isi->cbSize != sizeof(IMGSRVC_INFO))
return 0;
if (isi->szName == nullptr)
return 0;
FREE_IMAGE_FORMAT fif;
BOOL fUnload = FALSE;
FIBITMAP *dib = nullptr;
if (isi->fif == FIF_UNKNOWN) {
if (lParam & IMGL_WCHAR)
fif = FreeImage_GetFIFFromFilenameU(isi->wszName);
else
fif = FreeImage_GetFIFFromFilename(isi->szName);
}
else
fif = isi->fif;
if (fif == FIF_UNKNOWN) // default, save as bmp
fif = FIF_BMP;
if (isi->hbm != nullptr && (isi->dwMask & IMGI_HBITMAP) && !(isi->dwMask & IMGI_FBITMAP)) {
// create temporary dib, because we got a HBTIMAP passed
fUnload = TRUE;
FreeImage_CorrectBitmap32Alpha(isi->hbm, FALSE);
dib = FreeImage_CreateDIBFromHBITMAP(isi->hbm);
}
else if (isi->dib != nullptr && (isi->dwMask & IMGI_FBITMAP) && !(isi->dwMask & IMGI_HBITMAP))
dib = isi->dib;
if (dib == nullptr)
return 0;
int flags = HIWORD(lParam);
int ret = 0;
if (fif == FIF_PNG || fif == FIF_BMP || fif == FIF_JNG) {
if (lParam & IMGL_WCHAR)
ret = FreeImage_SaveU(fif, dib, isi->wszName, flags);
else
ret = FreeImage_Save(fif, dib, isi->szName, flags);
}
else {
FIBITMAP *dib_new = FreeImage_ConvertTo24Bits(dib);
if (lParam & IMGL_WCHAR)
ret = FreeImage_SaveU(fif, dib_new, isi->wszName, flags);
else
ret = FreeImage_Save(fif, dib_new, isi->szName, flags);
FreeImage_Unload(dib_new);
}
if (fUnload)
FreeImage_Unload(dib);
return ret;
}
extern "C" int __declspec(dllexport) Load(void)
{
CreateServiceFunction(MS_IMG_LOAD, serviceLoad);
CreateServiceFunction(MS_IMG_LOADFROMMEM, serviceLoadFromMem);
CreateServiceFunction(MS_IMG_SAVE, serviceSave);
CreateServiceFunction(MS_IMG_RESIZE, serviceBmpFilterResizeBitmap);
return 0;
}
///////////////////////////////////////////////////////////////////////////////
// Unload - destroys the plugin instance
extern "C" int __declspec(dllexport) Unload(void)
{
return 0;
}
extern "C" __declspec(dllexport) const PLUGININFOEX * MirandaPluginInfoEx(DWORD)
{
return &pluginInfoEx;
}
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