diff options
| author | Błażej Szczygieł <spaz16@wp.pl> | 2016-02-08 15:02:17 +0100 |
|---|---|---|
| committer | Błażej Szczygieł <spaz16@wp.pl> | 2016-02-12 16:20:36 +0000 |
| commit | 8dc55367ca3993f465f270ef79c2cb212d821d0c (patch) | |
| tree | d9e83ceb9786575f2f5a7b826fd4ef3836039b33 /src/gui/painting/qdrawhelper_p.h | |
| parent | 2ee75416169ba9cda8a021b119c4c217599d03b9 (diff) | |
QtGui: Avoid rgba64->rgba32 conversion on every pixel in gradient
Convert rgba64 color table to a new rgb32 color table only once. Use
this cache when required.
This patch can 2x speed up gradient painting using 32bit color format.
Task-number: QTBUG-50930
Change-Id: I9212e01e397c2e0127cdf3070cc49880a2d8df88
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>
Diffstat (limited to 'src/gui/painting/qdrawhelper_p.h')
| -rw-r--r-- | src/gui/painting/qdrawhelper_p.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/src/gui/painting/qdrawhelper_p.h b/src/gui/painting/qdrawhelper_p.h index 1ff19f4e04..ff98d186c5 100644 --- a/src/gui/painting/qdrawhelper_p.h +++ b/src/gui/painting/qdrawhelper_p.h @@ -268,7 +268,8 @@ struct QGradientData #define GRADIENT_STOPTABLE_SIZE 1024 #define GRADIENT_STOPTABLE_SIZE_SHIFT 10 - QRgba64* colorTable; //[GRADIENT_STOPTABLE_SIZE]; + const QRgba64 *colorTable64; //[GRADIENT_STOPTABLE_SIZE]; + const QRgb *colorTable32; //[GRADIENT_STOPTABLE_SIZE]; uint alphaColor : 1; }; @@ -376,13 +377,13 @@ static inline uint qt_gradient_clamp(const QGradientData *data, int ipos) static inline uint qt_gradient_pixel(const QGradientData *data, qreal pos) { int ipos = int(pos * (GRADIENT_STOPTABLE_SIZE - 1) + qreal(0.5)); - return data->colorTable[qt_gradient_clamp(data, ipos)].toArgb32(); + return data->colorTable32[qt_gradient_clamp(data, ipos)]; } static inline const QRgba64& qt_gradient_pixel64(const QGradientData *data, qreal pos) { int ipos = int(pos * (GRADIENT_STOPTABLE_SIZE - 1) + qreal(0.5)); - return data->colorTable[qt_gradient_clamp(data, ipos)]; + return data->colorTable64[qt_gradient_clamp(data, ipos)]; } static inline qreal qRadialDeterminant(qreal a, qreal b, qreal c) @@ -550,7 +551,7 @@ public: delta_det4_vec.v = Simd::v_add(delta_det4_vec.v, v_delta_delta_det16); \ b_vec.v = Simd::v_add(b_vec.v, v_delta_b4); \ for (int i = 0; i < 4; ++i) \ - *buffer++ = (extended_mask | v_buffer_mask.i[i]) & data->gradient.colorTable[index_vec.i[i]].toArgb32(); \ + *buffer++ = (extended_mask | v_buffer_mask.i[i]) & data->gradient.colorTable32[index_vec.i[i]]; \ } #define FETCH_RADIAL_LOOP(FETCH_RADIAL_LOOP_CLAMP) \ |