diff options
Diffstat (limited to 'src/plugins/imageformats/mng/qmnghandler.cpp')
| -rw-r--r-- | src/plugins/imageformats/mng/qmnghandler.cpp | 497 |
1 files changed, 0 insertions, 497 deletions
diff --git a/src/plugins/imageformats/mng/qmnghandler.cpp b/src/plugins/imageformats/mng/qmnghandler.cpp deleted file mode 100644 index ec442a1..0000000 --- a/src/plugins/imageformats/mng/qmnghandler.cpp +++ /dev/null @@ -1,497 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the plugins of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the Technology Preview License Agreement accompanying -** this package. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qmnghandler.h" - -#include "qimage.h" -#include "qvariant.h" -#include "qcolor.h" - -#define MNG_USE_SO -#include <libmng.h> - -QT_BEGIN_NAMESPACE - -class QMngHandlerPrivate -{ - Q_DECLARE_PUBLIC(QMngHandler) - public: - bool haveReadNone; - bool haveReadAll; - mng_handle hMNG; - QImage image; - int elapsed; - int nextDelay; - int iterCount; - int frameIndex; - int nextIndex; - int frameCount; - mng_uint32 iStyle; - mng_bool readData(mng_ptr pBuf, mng_uint32 iSize, mng_uint32p pRead); - mng_bool writeData(mng_ptr pBuf, mng_uint32 iSize, mng_uint32p pWritten); - mng_bool processHeader(mng_uint32 iWidth, mng_uint32 iHeight); - QMngHandlerPrivate(QMngHandler *q_ptr); - ~QMngHandlerPrivate(); - bool getNextImage(QImage *result); - bool writeImage(const QImage &image); - int currentImageNumber() const; - int imageCount() const; - bool jumpToImage(int imageNumber); - bool jumpToNextImage(); - int nextImageDelay() const; - bool setBackgroundColor(const QColor &color); - QColor backgroundColor() const; - QMngHandler *q_ptr; -}; - -static mng_bool myerror(mng_handle /*hMNG*/, - mng_int32 iErrorcode, - mng_int8 /*iSeverity*/, - mng_chunkid iChunkname, - mng_uint32 /*iChunkseq*/, - mng_int32 iExtra1, - mng_int32 iExtra2, - mng_pchar zErrortext) -{ - qWarning("MNG error %d: %s; chunk %c%c%c%c; subcode %d:%d", - iErrorcode,zErrortext, - (iChunkname>>24)&0xff, - (iChunkname>>16)&0xff, - (iChunkname>>8)&0xff, - (iChunkname>>0)&0xff, - iExtra1,iExtra2); - return TRUE; -} - -static mng_ptr myalloc(mng_size_t iSize) -{ -#if defined(Q_OS_WINCE) - mng_ptr ptr = malloc(iSize); - memset(ptr, 0, iSize); - return ptr; -#else - return (mng_ptr)calloc(1, iSize); -#endif -} - -static void myfree(mng_ptr pPtr, mng_size_t /*iSize*/) -{ - free(pPtr); -} - -static mng_bool myopenstream(mng_handle) -{ - return MNG_TRUE; -} - -static mng_bool myclosestream(mng_handle hMNG) -{ - QMngHandlerPrivate *pMydata = reinterpret_cast<QMngHandlerPrivate *>(mng_get_userdata(hMNG)); - pMydata->haveReadAll = true; - return MNG_TRUE; -} - -static mng_bool myreaddata(mng_handle hMNG, - mng_ptr pBuf, - mng_uint32 iSize, - mng_uint32p pRead) -{ - QMngHandlerPrivate *pMydata = reinterpret_cast<QMngHandlerPrivate *>(mng_get_userdata(hMNG)); - return pMydata->readData(pBuf, iSize, pRead); -} - -static mng_bool mywritedata(mng_handle hMNG, - mng_ptr pBuf, - mng_uint32 iSize, - mng_uint32p pWritten) -{ - QMngHandlerPrivate *pMydata = reinterpret_cast<QMngHandlerPrivate *>(mng_get_userdata(hMNG)); - return pMydata->writeData(pBuf, iSize, pWritten); -} - -static mng_bool myprocessheader(mng_handle hMNG, - mng_uint32 iWidth, - mng_uint32 iHeight) -{ - QMngHandlerPrivate *pMydata = reinterpret_cast<QMngHandlerPrivate *>(mng_get_userdata(hMNG)); - return pMydata->processHeader(iWidth, iHeight); -} - -static mng_ptr mygetcanvasline(mng_handle hMNG, - mng_uint32 iLinenr) -{ - QMngHandlerPrivate *pMydata = reinterpret_cast<QMngHandlerPrivate *>(mng_get_userdata(hMNG)); - return (mng_ptr)pMydata->image.scanLine(iLinenr); -} - -static mng_bool myrefresh(mng_handle /*hMNG*/, - mng_uint32 /*iX*/, - mng_uint32 /*iY*/, - mng_uint32 /*iWidth*/, - mng_uint32 /*iHeight*/) -{ - return MNG_TRUE; -} - -static mng_uint32 mygettickcount(mng_handle hMNG) -{ - QMngHandlerPrivate *pMydata = reinterpret_cast<QMngHandlerPrivate *>(mng_get_userdata(hMNG)); - return pMydata->elapsed++; -} - -static mng_bool mysettimer(mng_handle hMNG, - mng_uint32 iMsecs) -{ - QMngHandlerPrivate *pMydata = reinterpret_cast<QMngHandlerPrivate *>(mng_get_userdata(hMNG)); - pMydata->elapsed += iMsecs; - pMydata->nextDelay = iMsecs; - return MNG_TRUE; -} - -static mng_bool myprocessterm(mng_handle hMNG, - mng_uint8 iTermaction, - mng_uint8 /*iIteraction*/, - mng_uint32 /*iDelay*/, - mng_uint32 iItermax) -{ - QMngHandlerPrivate *pMydata = reinterpret_cast<QMngHandlerPrivate *>(mng_get_userdata(hMNG)); - if (iTermaction == 3) - pMydata->iterCount = iItermax; - return MNG_TRUE; -} - -static mng_bool mytrace(mng_handle, - mng_int32 iFuncnr, - mng_int32 iFuncseq, - mng_pchar zFuncname) -{ - qDebug("mng trace: iFuncnr: %d iFuncseq: %d zFuncname: %s", iFuncnr, iFuncseq, zFuncname); - return MNG_TRUE; -} - -QMngHandlerPrivate::QMngHandlerPrivate(QMngHandler *q_ptr) - : haveReadNone(true), haveReadAll(false), elapsed(0), nextDelay(0), iterCount(1), - frameIndex(-1), nextIndex(0), frameCount(0), q_ptr(q_ptr) -{ - iStyle = (QSysInfo::ByteOrder == QSysInfo::LittleEndian) ? MNG_CANVAS_BGRA8 : MNG_CANVAS_ARGB8; - // Initialize libmng - hMNG = mng_initialize((mng_ptr)this, myalloc, myfree, mytrace); - if (hMNG) { - // Set callback functions - mng_setcb_errorproc(hMNG, myerror); - mng_setcb_openstream(hMNG, myopenstream); - mng_setcb_closestream(hMNG, myclosestream); - mng_setcb_readdata(hMNG, myreaddata); - mng_setcb_writedata(hMNG, mywritedata); - mng_setcb_processheader(hMNG, myprocessheader); - mng_setcb_getcanvasline(hMNG, mygetcanvasline); - mng_setcb_refresh(hMNG, myrefresh); - mng_setcb_gettickcount(hMNG, mygettickcount); - mng_setcb_settimer(hMNG, mysettimer); - mng_setcb_processterm(hMNG, myprocessterm); - mng_set_doprogressive(hMNG, MNG_FALSE); - mng_set_suspensionmode(hMNG, MNG_TRUE); - } -} - -QMngHandlerPrivate::~QMngHandlerPrivate() -{ - mng_cleanup(&hMNG); -} - -mng_bool QMngHandlerPrivate::readData(mng_ptr pBuf, mng_uint32 iSize, mng_uint32p pRead) -{ - Q_Q(QMngHandler); - *pRead = q->device()->read((char *)pBuf, iSize); - return (*pRead > 0) ? MNG_TRUE : MNG_FALSE; -} - -mng_bool QMngHandlerPrivate::writeData(mng_ptr pBuf, mng_uint32 iSize, mng_uint32p pWritten) -{ - Q_Q(QMngHandler); - *pWritten = q->device()->write((char *)pBuf, iSize); - return MNG_TRUE; -} - -mng_bool QMngHandlerPrivate::processHeader(mng_uint32 iWidth, mng_uint32 iHeight) -{ - if (mng_set_canvasstyle(hMNG, iStyle) != MNG_NOERROR) - return MNG_FALSE; - image = QImage(iWidth, iHeight, QImage::Format_ARGB32); - image.fill(0); - return MNG_TRUE; -} - -bool QMngHandlerPrivate::getNextImage(QImage *result) -{ - mng_retcode ret; - if (haveReadNone) { - haveReadNone = false; - ret = mng_readdisplay(hMNG); - } else { - ret = mng_display_resume(hMNG); - } - if ((MNG_NOERROR == ret) || (MNG_NEEDTIMERWAIT == ret)) { - *result = image; - frameIndex = nextIndex++; - if (haveReadAll && (frameCount == 0)) - frameCount = nextIndex; - return true; - } - return false; -} - -bool QMngHandlerPrivate::writeImage(const QImage &image) -{ - mng_reset(hMNG); - if (mng_create(hMNG) != MNG_NOERROR) - return false; - - this->image = image.convertToFormat(QImage::Format_ARGB32); - int w = image.width(); - int h = image.height(); - - if ( - // width, height, ticks, layercount, framecount, playtime, simplicity - (mng_putchunk_mhdr(hMNG, w, h, 1000, 0, 0, 0, 7) == MNG_NOERROR) && - // termination_action, action_after_iterations, delay, iteration_max - (mng_putchunk_term(hMNG, 3, 0, 1, 0x7FFFFFFF) == MNG_NOERROR) && - // width, height, bitdepth, colortype, compression, filter, interlace - (mng_putchunk_ihdr(hMNG, w, h, 8, 6, 0, 0, 0) == MNG_NOERROR) && - // width, height, colortype, bitdepth, compression, filter, interlace, canvasstyle, getcanvasline - (mng_putimgdata_ihdr(hMNG, w, h, 6, 8, 0, 0, 0, iStyle, mygetcanvasline) == MNG_NOERROR) && - (mng_putchunk_iend(hMNG) == MNG_NOERROR) && - (mng_putchunk_mend(hMNG) == MNG_NOERROR) && - (mng_write(hMNG) == MNG_NOERROR) - ) - return true; - return false; -} - -int QMngHandlerPrivate::currentImageNumber() const -{ -// return mng_get_currentframe(hMNG) % imageCount(); not implemented, apparently - return frameIndex; -} - -int QMngHandlerPrivate::imageCount() const -{ -// return mng_get_totalframes(hMNG); not implemented, apparently - if (haveReadAll) - return frameCount; - return 0; // Don't know -} - -bool QMngHandlerPrivate::jumpToImage(int imageNumber) -{ - if (imageNumber == nextIndex) - return true; - - if ((imageNumber == 0) && haveReadAll && (nextIndex == frameCount)) { - // Loop! - nextIndex = 0; - return true; - } - if (mng_display_freeze(hMNG) == MNG_NOERROR) { - if (mng_display_goframe(hMNG, imageNumber) == MNG_NOERROR) { - nextIndex = imageNumber; - return true; - } - } - return false; -} - -bool QMngHandlerPrivate::jumpToNextImage() -{ - return jumpToImage((currentImageNumber()+1) % imageCount()); -} - -int QMngHandlerPrivate::nextImageDelay() const -{ - return nextDelay; -} - -bool QMngHandlerPrivate::setBackgroundColor(const QColor &color) -{ - mng_uint16 iRed = (mng_uint16)(color.red() << 8); - mng_uint16 iBlue = (mng_uint16)(color.blue() << 8); - mng_uint16 iGreen = (mng_uint16)(color.green() << 8); - return (mng_set_bgcolor(hMNG, iRed, iBlue, iGreen) == MNG_NOERROR); -} - -QColor QMngHandlerPrivate::backgroundColor() const -{ - mng_uint16 iRed; - mng_uint16 iBlue; - mng_uint16 iGreen; - if (mng_get_bgcolor(hMNG, &iRed, &iBlue, &iGreen) == MNG_NOERROR) - return QColor((iRed >> 8) & 0xFF, (iGreen >> 8) & 0xFF, (iBlue >> 8) & 0xFF); - return QColor(); -} - -QMngHandler::QMngHandler() - : d_ptr(new QMngHandlerPrivate(this)) -{ -} - -QMngHandler::~QMngHandler() -{ -} - -/*! \reimp */ -bool QMngHandler::canRead() const -{ - Q_D(const QMngHandler); - if ((!d->haveReadNone - && (!d->haveReadAll || (d->haveReadAll && (d->nextIndex < d->frameCount)))) - || canRead(device())) - { - setFormat("mng"); - return true; - } - return false; -} - -/*! \internal */ -bool QMngHandler::canRead(QIODevice *device) -{ - if (!device) { - qWarning("QMngHandler::canRead() called with no device"); - return false; - } - - return device->peek(8) == "\x8A\x4D\x4E\x47\x0D\x0A\x1A\x0A"; -} - -/*! \reimp */ -QByteArray QMngHandler::name() const -{ - return "mng"; -} - -/*! \reimp */ -bool QMngHandler::read(QImage *image) -{ - Q_D(QMngHandler); - return canRead() ? d->getNextImage(image) : false; -} - -/*! \reimp */ -bool QMngHandler::write(const QImage &image) -{ - Q_D(QMngHandler); - return d->writeImage(image); -} - -/*! \reimp */ -int QMngHandler::currentImageNumber() const -{ - Q_D(const QMngHandler); - return d->currentImageNumber(); -} - -/*! \reimp */ -int QMngHandler::imageCount() const -{ - Q_D(const QMngHandler); - return d->imageCount(); -} - -/*! \reimp */ -bool QMngHandler::jumpToImage(int imageNumber) -{ - Q_D(QMngHandler); - return d->jumpToImage(imageNumber); -} - -/*! \reimp */ -bool QMngHandler::jumpToNextImage() -{ - Q_D(QMngHandler); - return d->jumpToNextImage(); -} - -/*! \reimp */ -int QMngHandler::loopCount() const -{ - Q_D(const QMngHandler); - if (d->iterCount == 0x7FFFFFFF) - return -1; // infinite loop - return d->iterCount-1; -} - -/*! \reimp */ -int QMngHandler::nextImageDelay() const -{ - Q_D(const QMngHandler); - return d->nextImageDelay(); -} - -/*! \reimp */ -QVariant QMngHandler::option(ImageOption option) const -{ - Q_D(const QMngHandler); - if (option == QImageIOHandler::Animation) - return true; - else if (option == QImageIOHandler::BackgroundColor) - return d->backgroundColor(); - return QVariant(); -} - -/*! \reimp */ -void QMngHandler::setOption(ImageOption option, const QVariant & value) -{ - Q_D(QMngHandler); - if (option == QImageIOHandler::BackgroundColor) - d->setBackgroundColor(qVariantValue<QColor>(value)); -} - -/*! \reimp */ -bool QMngHandler::supportsOption(ImageOption option) const -{ - if (option == QImageIOHandler::Animation) - return true; - else if (option == QImageIOHandler::BackgroundColor) - return true; - return false; -} - -QT_END_NAMESPACE |