diff options
Diffstat (limited to 'tqtinterface/qt4/src/kernel/tqinternal.cpp')
| -rw-r--r-- | tqtinterface/qt4/src/kernel/tqinternal.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/tqtinterface/qt4/src/kernel/tqinternal.cpp b/tqtinterface/qt4/src/kernel/tqinternal.cpp index 7ad13f1..4d80f89 100644 --- a/tqtinterface/qt4/src/kernel/tqinternal.cpp +++ b/tqtinterface/qt4/src/kernel/tqinternal.cpp @@ -44,6 +44,11 @@ #include "tqpainter.h" #include "tqcleanuphandler.h" +// Modern systems (year 2011) have very large screens in excess of 1000 pixels wide +// Some may even have screens in excess of 4000 pixels wide(!) +// Prevent drawing artifacts on such screens +#define USE_HUGE_QT_SHARED_DOUBLE_BUFFERS 1 + static TQPixmap* qdb_shared_pixmap = 0; static TQPixmap *qdb_force_pixmap = 0; static TQSharedDoubleBuffer* qdb_owner = 0; @@ -74,9 +79,15 @@ static const int hardLimitHeight = -1; // static const int sharedLimitWidth = 64; // static const int sharedLimitHeight = 20; // #else +#ifdef USE_HUGE_QT_SHARED_DOUBLE_BUFFERS +// 24M on 32bpp +static const int sharedLimitWidth = 6400; +static const int sharedLimitHeight = 1000; +#else // 240K on 32bpp static const int sharedLimitWidth = 640; static const int sharedLimitHeight = 100; +#endif // #endif // ******************************************************************* @@ -533,8 +544,13 @@ TQPixmap *TQSharedDoubleBuffer::getPixmap() rw = 4000; // 32MB seems reasonable enough, but the usage is likely to be wider than it is tall (think of multiple wide monitors) rh = 2000; #else // USE_QT4 +#ifdef USE_HUGE_QT_SHARED_DOUBLE_BUFFERS + rw = TQMIN(rw, 16000); + rh = TQMIN(rh, 16000); +#else rw = TQMIN(rw, 8000); rh = TQMIN(rh, 8000); +#endif #endif // USE_QT4 // need to create a big pixmap and start the cleaner if ( ! qdb_force_pixmap ) { |