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author | Gareth Stockwell <gareth.stockwell@sosco.com> | 2009-09-16 17:08:58 (GMT) |
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committer | Frans Englich <frans.englich@nokia.com> | 2009-09-23 12:36:29 (GMT) |
commit | 6700a53676265787ab46106602234448e0174e55 (patch) | |
tree | 245cf82b5a5152b6f34a505434f4ed6249fffb1f /src | |
parent | 61161589376a3bb2dffaf898ca50449774b48565 (diff) | |
download | Qt-6700a53676265787ab46106602234448e0174e55.zip Qt-6700a53676265787ab46106602234448e0174e55.tar.gz Qt-6700a53676265787ab46106602234448e0174e55.tar.bz2 |
Added a utility function for reading color of individual pixels from the screen
Diffstat (limited to 'src')
-rw-r--r-- | src/3rdparty/phonon/mmf/utils.cpp | 75 | ||||
-rw-r--r-- | src/3rdparty/phonon/mmf/utils.h | 9 | ||||
-rw-r--r-- | src/plugins/phonon/mmf/plugin/plugin.pro | 1 |
3 files changed, 85 insertions, 0 deletions
diff --git a/src/3rdparty/phonon/mmf/utils.cpp b/src/3rdparty/phonon/mmf/utils.cpp index cebc32e..3d674fd 100644 --- a/src/3rdparty/phonon/mmf/utils.cpp +++ b/src/3rdparty/phonon/mmf/utils.cpp @@ -50,5 +50,80 @@ MMF::MediaType MMF::Utils::mimeTypeToMediaType(const TDesC& mimeType) } +#ifdef _DEBUG + +#include <hal.h> +#include <hal_data.h> +#include <gdi.h> +#include <eikenv.h> + +struct TScreenInfo +{ + int width; + int height; + int bpp; + const char* address; + int initialOffset; + int lineOffset; + TDisplayMode displayMode; +}; + +void getScreenInfoL(TScreenInfo& info) +{ + info.displayMode = CEikonEnv::Static()->ScreenDevice()->DisplayMode(); + + // Then we must set these as the input parameter + info.width = info.displayMode; + info.height = info.displayMode; + info.initialOffset = info.displayMode; + info.lineOffset = info.displayMode; + info.bpp = info.displayMode; + + User::LeaveIfError( HAL::Get(HALData::EDisplayXPixels, info.width) ); + User::LeaveIfError( HAL::Get(HALData::EDisplayYPixels, info.width) ); + + int address; + User::LeaveIfError( HAL::Get(HALData::EDisplayMemoryAddress, address) ); + info.address = reinterpret_cast<const char*>(address); + + User::LeaveIfError( HAL::Get(HALData::EDisplayOffsetToFirstPixel, info.initialOffset) ); + + User::LeaveIfError( HAL::Get(HALData::EDisplayOffsetBetweenLines, info.lineOffset) ); + + User::LeaveIfError( HAL::Get(HALData::EDisplayBitsPerPixel, info.bpp) ); +} + + +QColor MMF::Utils::getScreenPixel(const QPoint& pos) +{ + TScreenInfo info; + TRAPD(err, getScreenInfoL(info)); + QColor pixel; + if(err == KErrNone and pos.x() < info.width and pos.y() < info.height) + { + const int bytesPerPixel = info.bpp / 8; + Q_ASSERT(bytesPerPixel >= 3); + + const int stride = (info.width * bytesPerPixel) + info.lineOffset; + + const char* ptr = + info.address + + info.initialOffset + + pos.y() * stride + + pos.x() * bytesPerPixel; + + // BGRA + pixel.setBlue(*ptr++); + pixel.setGreen(*ptr++); + pixel.setRed(*ptr++); + + if(bytesPerPixel == 4) + pixel.setAlpha(*ptr++); + } + return pixel; +} + +#endif // _DEBUG + QT_END_NAMESPACE diff --git a/src/3rdparty/phonon/mmf/utils.h b/src/3rdparty/phonon/mmf/utils.h index 5a26018..7db7831 100644 --- a/src/3rdparty/phonon/mmf/utils.h +++ b/src/3rdparty/phonon/mmf/utils.h @@ -22,6 +22,8 @@ along with this library. If not, see <http://www.gnu.org/licenses/>. #include <private/qcore_symbian_p.h> #include <e32debug.h> // for RDebug +#include <QColor> + #include "defs.h" QT_BEGIN_NAMESPACE @@ -51,6 +53,13 @@ void panic(PanicCode code); * type. If it is neither, the function returns MediaTypeUnknown. */ MediaType mimeTypeToMediaType(const TDesC& mimeType); + +#ifdef _DEBUG +/** + * Retrieve color of specified pixel from the screen. + */ +QColor getScreenPixel(const QPoint& pos); +#endif } /** diff --git a/src/plugins/phonon/mmf/plugin/plugin.pro b/src/plugins/phonon/mmf/plugin/plugin.pro index c7bb327d..d620453 100644 --- a/src/plugins/phonon/mmf/plugin/plugin.pro +++ b/src/plugins/phonon/mmf/plugin/plugin.pro @@ -63,6 +63,7 @@ SOURCES += \ debug { INCLUDEPATH += $$PHONON_MMF_DIR/mmfphonondebug LIBS += -lphonon_mmf_debug.lib + LIBS += -lhal } LIBS += -lmediaclientvideo # For CVideoPlayerUtility |