diff options
| author | Thiago Macieira <thiago.macieira@intel.com> | 2011-12-29 16:36:46 -0200 |
|---|---|---|
| committer | Qt by Nokia <qt-info@nokia.com> | 2012-04-24 16:38:14 +0200 |
| commit | 29d2aad30a47009e5b756a608dc9366900caf71f (patch) | |
| tree | d62ceb7afa87eb93b63069bdb89dbdd3e9b94faf /src/gui/painting/qdrawhelper_p.h | |
| parent | 1765329b8c15b855f787ef8079b4d021d06f7af4 (diff) | |
Use the C99 keyword "restrict" in compilers that support it
This allows the compiler to produce better / smaller code due to not
being required to deal with two pointers possibly aliasing each
other. This also enables vectorisation where otherwise the compiler
wouldn't be able to do.
Change-Id: Ie7db3a54a1ba22f87ac5283d5c43905707957549
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>
Diffstat (limited to 'src/gui/painting/qdrawhelper_p.h')
| -rw-r--r-- | src/gui/painting/qdrawhelper_p.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/gui/painting/qdrawhelper_p.h b/src/gui/painting/qdrawhelper_p.h index 8d67e69caa..f502533443 100644 --- a/src/gui/painting/qdrawhelper_p.h +++ b/src/gui/painting/qdrawhelper_p.h @@ -71,12 +71,15 @@ QT_BEGIN_NAMESPACE // RVCT doesn't like static template functions # define Q_STATIC_TEMPLATE_FUNCTION # define Q_STATIC_INLINE_FUNCTION static __forceinline +# define Q_DECL_RESTRICT #elif defined(Q_CC_GNU) # define Q_STATIC_TEMPLATE_FUNCTION static __attribute__((always_inline)) # define Q_STATIC_INLINE_FUNCTION static inline __attribute__((always_inline)) +# define Q_DECL_RESTRICT __restrict__ #else # define Q_STATIC_TEMPLATE_FUNCTION static # define Q_STATIC_INLINE_FUNCTION static inline +# define Q_DECL_RESTRICT #endif static const uint AMASK = 0xff000000; @@ -165,7 +168,7 @@ extern DrawHelper qDrawHelper[QImage::NImageFormats]; void qBlendTexture(int count, const QSpan *spans, void *userData); -typedef void (QT_FASTCALL *CompositionFunction)(uint *dest, const uint *src, int length, uint const_alpha); +typedef void (QT_FASTCALL *CompositionFunction)(uint *Q_DECL_RESTRICT dest, const uint *Q_DECL_RESTRICT src, int length, uint const_alpha); typedef void (QT_FASTCALL *CompositionFunctionSolid)(uint *dest, int length, uint color, uint const_alpha); struct LinearGradientValues |