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qt5-qtbase/0058-QtGui-Avoid-rgba64-rgba32-conversion-on-every-pixel-.patch

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pull upstream patches (upstreamed versions, gcc6-related bits mostly)
2016-03-25 12:53:21 +00:00
From 8dc55367ca3993f465f270ef79c2cb212d821d0c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?B=C5=82a=C5=BCej=20Szczygie=C5=82?= <spaz16@wp.pl>
Date: Mon, 8 Feb 2016 15:02:17 +0100
Subject: [PATCH 058/328] 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>
---
src/gui/painting/qdrawhelper.cpp | 4 ++--
src/gui/painting/qdrawhelper_p.h | 9 ++++----
src/gui/painting/qpaintengine_raster.cpp | 38 ++++++++++++++++++++++++--------
3 files changed, 36 insertions(+), 15 deletions(-)
diff --git a/src/gui/painting/qdrawhelper.cpp b/src/gui/painting/qdrawhelper.cpp
index 28c7099..f0e5810 100644
--- a/src/gui/painting/qdrawhelper.cpp
+++ b/src/gui/painting/qdrawhelper.cpp
@@ -3433,13 +3433,13 @@ static SourceFetchProc64 sourceFetch64[NBlendTypes][QImage::NImageFormats] = {
static uint qt_gradient_pixel_fixed(const QGradientData *data, int fixed_pos)
{
int ipos = (fixed_pos + (FIXPT_SIZE / 2)) >> FIXPT_BITS;
- return data->colorTable[qt_gradient_clamp(data, ipos)].toArgb32();
+ return data->colorTable32[qt_gradient_clamp(data, ipos)];
}
static const QRgba64& qt_gradient_pixel64_fixed(const QGradientData *data, int fixed_pos)
{
int ipos = (fixed_pos + (FIXPT_SIZE / 2)) >> FIXPT_BITS;
- return data->colorTable[qt_gradient_clamp(data, ipos)];
+ return data->colorTable64[qt_gradient_clamp(data, ipos)];
}
static void QT_FASTCALL getLinearGradientValues(LinearGradientValues *v, const QSpanData *data)
diff --git a/src/gui/painting/qdrawhelper_p.h b/src/gui/painting/qdrawhelper_p.h
index 1ff19f4..ff98d18 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) \
diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp
index 05ccff5..fb44a7a 100644
--- a/src/gui/painting/qpaintengine_raster.cpp
+++ b/src/gui/painting/qpaintengine_raster.cpp
@@ -4138,7 +4138,8 @@ class QGradientCache
{
inline CacheInfo(QGradientStops s, int op, QGradient::InterpolationMode mode) :
stops(qMove(s)), opacity(op), interpolationMode(mode) {}
- QRgba64 buffer[GRADIENT_STOPTABLE_SIZE];
+ QRgba64 buffer64[GRADIENT_STOPTABLE_SIZE];
+ QRgb buffer32[GRADIENT_STOPTABLE_SIZE];
QGradientStops stops;
int opacity;
QGradient::InterpolationMode interpolationMode;
@@ -4147,7 +4148,9 @@ class QGradientCache
typedef QMultiHash<quint64, CacheInfo> QGradientColorTableHash;
public:
- inline const QRgba64 *getBuffer(const QGradient &gradient, int opacity) {
+ typedef QPair<const QRgb *, const QRgba64 *> ColorBufferPair;
+
+ inline ColorBufferPair getBuffer(const QGradient &gradient, int opacity) {
quint64 hash_val = 0;
const QGradientStops stops = gradient.stops();
@@ -4163,7 +4166,8 @@ public:
do {
const CacheInfo &cache_info = it.value();
if (cache_info.stops == stops && cache_info.opacity == opacity && cache_info.interpolationMode == gradient.interpolationMode())
- return cache_info.buffer;
+ return qMakePair(reinterpret_cast<const QRgb *>(cache_info.buffer32),
+ reinterpret_cast<const QRgba64 *>(cache_info.buffer64));
++it;
} while (it != cache.constEnd() && it.key() == hash_val);
// an exact match for these stops and opacity was not found, create new cache
@@ -4177,14 +4181,18 @@ protected:
inline void generateGradientColorTable(const QGradient& g,
QRgba64 *colorTable,
int size, int opacity) const;
- QRgba64 *addCacheElement(quint64 hash_val, const QGradient &gradient, int opacity) {
+ ColorBufferPair addCacheElement(quint64 hash_val, const QGradient &gradient, int opacity) {
if (cache.size() == maxCacheSize()) {
// may remove more than 1, but OK
cache.erase(cache.begin() + (qrand() % maxCacheSize()));
}
CacheInfo cache_entry(gradient.stops(), opacity, gradient.interpolationMode());
- generateGradientColorTable(gradient, cache_entry.buffer, paletteSize(), opacity);
- return cache.insert(hash_val, cache_entry).value().buffer;
+ generateGradientColorTable(gradient, cache_entry.buffer64, paletteSize(), opacity);
+ for (int i = 0; i < GRADIENT_STOPTABLE_SIZE; ++i)
+ cache_entry.buffer32[i] = cache_entry.buffer64[i].toArgb32();
+ CacheInfo &cache_value = cache.insert(hash_val, cache_entry).value();
+ return qMakePair(reinterpret_cast<const QRgb *>(cache_value.buffer32),
+ reinterpret_cast<const QRgba64 *>(cache_value.buffer64));
}
QGradientColorTableHash cache;
@@ -4418,7 +4426,11 @@ void QSpanData::setup(const QBrush &brush, int alpha, QPainter::CompositionMode
type = LinearGradient;
const QLinearGradient *g = static_cast<const QLinearGradient *>(brush.gradient());
gradient.alphaColor = !brush.isOpaque() || alpha != 256;
- gradient.colorTable = const_cast<QRgba64*>(qt_gradient_cache()->getBuffer(*g, alpha));
+
+ QGradientCache::ColorBufferPair colorBuffers = qt_gradient_cache()->getBuffer(*g, alpha);
+ gradient.colorTable64 = colorBuffers.second;
+ gradient.colorTable32 = colorBuffers.first;
+
gradient.spread = g->spread();
QLinearGradientData &linearData = gradient.linear;
@@ -4435,7 +4447,11 @@ void QSpanData::setup(const QBrush &brush, int alpha, QPainter::CompositionMode
type = RadialGradient;
const QRadialGradient *g = static_cast<const QRadialGradient *>(brush.gradient());
gradient.alphaColor = !brush.isOpaque() || alpha != 256;
- gradient.colorTable = const_cast<QRgba64*>(qt_gradient_cache()->getBuffer(*g, alpha));
+
+ QGradientCache::ColorBufferPair colorBuffers = qt_gradient_cache()->getBuffer(*g, alpha);
+ gradient.colorTable64 = colorBuffers.second;
+ gradient.colorTable32 = colorBuffers.first;
+
gradient.spread = g->spread();
QRadialGradientData &radialData = gradient.radial;
@@ -4456,7 +4472,11 @@ void QSpanData::setup(const QBrush &brush, int alpha, QPainter::CompositionMode
type = ConicalGradient;
const QConicalGradient *g = static_cast<const QConicalGradient *>(brush.gradient());
gradient.alphaColor = !brush.isOpaque() || alpha != 256;
- gradient.colorTable = const_cast<QRgba64*>(qt_gradient_cache()->getBuffer(*g, alpha));
+
+ QGradientCache::ColorBufferPair colorBuffers = qt_gradient_cache()->getBuffer(*g, alpha);
+ gradient.colorTable64 = colorBuffers.second;
+ gradient.colorTable32 = colorBuffers.first;
+
gradient.spread = QGradient::RepeatSpread;
QConicalGradientData &conicalData = gradient.conical;
--
1.9.3
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