diff options
author | Holger Hans Peter Freyther <holger@moiji-mobile.com> | 2011-09-29 18:14:15 +0200 |
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committer | Qt by Nokia <qt-info@nokia.com> | 2011-10-21 16:54:45 +0200 |
commit | c8746d886fba6dab01f0d5245d12dd525418e410 (patch) | |
tree | 8dbaa16e0fbeff18d06d6ab6666815629a8997e3 /src/plugins/platforms/directfb/qdirectfbblitter.cpp | |
parent | b1c803a925cc6cfb78598066f735e54a007d57a3 (diff) |
[directfb] Implement QPixmap::fromFile using DirectFB routines
The code is based on Qt 4.8 DirectFB support, it was reduced
in size (cosmetic changes, by using the outPtr()) and it has a
bugfix to pass loadAsBitmapOrPixmap that assumes the loadFromFile
routine will add '.png' and other extensions to the file.
Change-Id: I25b11206053c02be5c04730fba5bb42bd07426d1
Reviewed-by: Jørgen Lind <jorgen.lind@nokia.com>
Diffstat (limited to 'src/plugins/platforms/directfb/qdirectfbblitter.cpp')
-rw-r--r-- | src/plugins/platforms/directfb/qdirectfbblitter.cpp | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/src/plugins/platforms/directfb/qdirectfbblitter.cpp b/src/plugins/platforms/directfb/qdirectfbblitter.cpp index bd31982d42..f7a13274e2 100644 --- a/src/plugins/platforms/directfb/qdirectfbblitter.cpp +++ b/src/plugins/platforms/directfb/qdirectfbblitter.cpp @@ -45,10 +45,16 @@ #include <QtGui/private/qpixmap_blitter_p.h> #include <QDebug> +#include <QFile> #include <directfb.h> +#define QDFB_STRINGIFY(x) #x +#define QDFB_TOSTRING(x) QDFB_STRINGIFY(x) +#define QDFB_PRETTY \ + (__FILE__ ":" QDFB_TOSTRING(__LINE__)) + static QBlittable::Capabilities dfb_blitter_capabilities() { return QBlittable::Capabilities(QBlittable::SolidRectCapability @@ -178,6 +184,94 @@ QImage *QDirectFbBlitter::doLock() return &m_image; } +bool QDirectFbBlitterPlatformPixmap::fromDataBufferDescription(const DFBDataBufferDescription &dataBufferDescription) +{ + DFBResult result; + IDirectFB *dfb = QDirectFbConvenience::dfbInterface(); + + // Create a data buffer + QDirectFBPointer<IDirectFBDataBuffer> dataBuffer; + result = dfb->CreateDataBuffer(dfb, &dataBufferDescription, dataBuffer.outPtr()); + if (result != DFB_OK) { + DirectFBError(QDFB_PRETTY, result); + return false; + } + + // Create the image provider + QDirectFBPointer<IDirectFBImageProvider> provider; + result = dataBuffer->CreateImageProvider(dataBuffer.data(), provider.outPtr()); + if (result != DFB_OK) { + DirectFBError(QDFB_PRETTY, result); + return false; + } + + // Extract image information + DFBImageDescription imageDescription; + result = provider->GetImageDescription(provider.data(), &imageDescription); + if (result != DFB_OK) { + DirectFBError(QDFB_PRETTY, result); + return false; + } + + // Can we handle this directlu? + if (imageDescription.caps & DICAPS_COLORKEY) + return false; + + DFBSurfaceDescription surfaceDescription; + result = provider->GetSurfaceDescription(provider.data(), &surfaceDescription); + if (result != DFB_OK) { + DirectFBError(QDFB_PRETTY, result); + return false; + } + + m_alpha = imageDescription.caps & DICAPS_ALPHACHANNEL; + resize(surfaceDescription.width, surfaceDescription.height); + // TODO: FIXME; update d + + + result = provider->RenderTo(provider.data(), dfbBlitter()->dfbSurface(), 0); + if (result != DFB_OK) { + DirectFBError(QDFB_PRETTY, result); + return false; + } + + return true; +} + +bool QDirectFbBlitterPlatformPixmap::fromFile(const QString &filename, const char *format, + Qt::ImageConversionFlags flags) +{ + // If we can't find the file, pass it on to the base class as it is + // trying harder by appending various extensions to the path. + if (!QFile::exists(filename)) + return QBlittablePlatformPixmap::fromFile(filename, format, flags); + + // Stop if there is a requirement for colors + if (flags != Qt::AutoColor) + return QBlittablePlatformPixmap::fromFile(filename, format, flags); + + // Deal with resources + if (filename.startsWith(QLatin1Char(':'))) { // resource + QFile file(filename); + if (!file.open(QIODevice::ReadOnly)) + return false; + const QByteArray data = file.readAll(); + file.close(); + return fromData(reinterpret_cast<const uchar*>(data.constData()), data.size(), format, flags); + } + + // Try to use directfb to load it. + DFBDataBufferDescription description; + description.flags = DBDESC_FILE; + const QByteArray fileNameData = filename.toLocal8Bit(); + description.file = fileNameData.constData(); + if (fromDataBufferDescription(description)) + return true; + + // Fallback + return QBlittablePlatformPixmap::fromFile(filename, format, flags); +} + void QDirectFbBlitter::doUnlock() { m_surface->Unlock(m_surface.data()); |