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-rw-r--r--src/gui/painting/qdrawhelper.cpp149
1 files changed, 57 insertions, 92 deletions
diff --git a/src/gui/painting/qdrawhelper.cpp b/src/gui/painting/qdrawhelper.cpp
index 0cd5ff1d0e..b2e762a391 100644
--- a/src/gui/painting/qdrawhelper.cpp
+++ b/src/gui/painting/qdrawhelper.cpp
@@ -5697,62 +5697,74 @@ void qt_alphamapblit_quint16(QRasterBuffer *rasterBuffer,
}
}
-static inline void rgbBlendPixel(quint32 *dst, int coverage, QRgba64 slinear, const QColorProfile *colorProfile, bool useGammaCorrection)
+static inline void rgbBlendPixel(quint32 *dst, int coverage, QRgba64 slinear, const QColorProfile *colorProfile)
{
// Do a gammacorrected RGB alphablend...
- const QRgba64 dlinear = useGammaCorrection ? colorProfile->toLinear64(*dst) : QRgba64::fromArgb32(*dst);
+ const QRgba64 dlinear = colorProfile ? colorProfile->toLinear64(*dst) : QRgba64::fromArgb32(*dst);
QRgba64 blend = rgbBlend(dlinear, slinear, coverage);
- *dst = useGammaCorrection ? colorProfile->fromLinear64(blend) : toArgb32(blend);
+ *dst = colorProfile ? colorProfile->fromLinear64(blend) : toArgb32(blend);
}
-static inline void grayBlendPixel(quint32 *dst, int coverage, QRgba64 slinear, const QColorProfile *colorProfile)
+static inline void grayBlendPixel(quint32 *dst, int coverage, QRgba64 srcLinear, const QColorProfile *colorProfile)
{
// Do a gammacorrected gray alphablend...
- const QRgba64 dlinear = colorProfile->toLinear64(*dst);
+ QRgba64 dstLinear = QRgba64::fromArgb32(*dst);
- QRgba64 blend = interpolate255(slinear, coverage, dlinear, 255 - coverage);
+ if (colorProfile && !dstLinear.isTransparent())
+ dstLinear = colorProfile->fromLinear(dstLinear.unpremultiplied()).premultiplied();
- *dst = colorProfile->fromLinear64(blend);
+ dstLinear = interpolate255(srcLinear, coverage, dstLinear, 255 - coverage);
+
+ if (colorProfile && !dstLinear.isTransparent())
+ dstLinear = colorProfile->fromLinear(dstLinear.unpremultiplied()).premultiplied();
+
+ *dst = toArgb32(dstLinear);
+}
+
+static inline void alphamapblend_argb32(quint32 *dst, int coverage, QRgba64 srcLinear, quint32 src, const QColorProfile *colorProfile)
+{
+ if (coverage == 0) {
+ // nothing
+ } else if (coverage == 255) {
+ *dst = src;
+ } else {
+ grayBlendPixel(dst, coverage, srcLinear, colorProfile);
+ }
}
-static void qt_alphamapblit_uint32(QRasterBuffer *rasterBuffer,
- int x, int y, quint32 color,
+static void qt_alphamapblit_argb32(QRasterBuffer *rasterBuffer,
+ int x, int y, const QRgba64 &color,
const uchar *map,
int mapWidth, int mapHeight, int mapStride,
const QClipData *clip, bool useGammaCorrection)
{
- const quint32 c = color;
+ const quint32 c = color.toArgb32();
const int destStride = rasterBuffer->bytesPerLine() / sizeof(quint32);
- const QColorProfile *colorProfile = QGuiApplicationPrivate::instance()->colorProfileForA8Text();
- if (!colorProfile)
+ if (color.isTransparent())
return;
- const QRgba64 slinear = colorProfile->toLinear64(c);
+ const QColorProfile *colorProfile = nullptr;
+
+ if (useGammaCorrection)
+ colorProfile = QGuiApplicationPrivate::instance()->colorProfileForA8Text();
- bool opaque_src = (qAlpha(color) == 255);
- bool doGrayBlendPixel = opaque_src && useGammaCorrection;
+ QRgba64 srcColor = color;
+ if (colorProfile) {
+ if (color.isOpaque())
+ srcColor = colorProfile->toLinear(srcColor);
+ else
+ srcColor = colorProfile->toLinear(srcColor.unpremultiplied()).premultiplied();
+ }
if (!clip) {
quint32 *dest = reinterpret_cast<quint32*>(rasterBuffer->scanLine(y)) + x;
while (mapHeight--) {
for (int i = 0; i < mapWidth; ++i) {
const int coverage = map[i];
-
- if (coverage == 0) {
- // nothing
- } else if (coverage == 255) {
- dest[i] = c;
- } else {
- if (doGrayBlendPixel && qAlpha(dest[i]) == 255) {
- grayBlendPixel(dest+i, coverage, slinear, colorProfile);
- } else {
- int ialpha = 255 - coverage;
- dest[i] = INTERPOLATE_PIXEL_255(c, coverage, dest[i], ialpha);
- }
- }
+ alphamapblend_argb32(dest + i, coverage, srcColor, c, colorProfile);
}
dest += destStride;
map += mapStride;
@@ -5777,20 +5789,7 @@ static void qt_alphamapblit_uint32(QRasterBuffer *rasterBuffer,
for (int xp=start; xp<end; ++xp) {
const int coverage = map[xp - x];
-
- if (coverage == 0) {
- // nothing
- } else if (coverage == 255) {
- dest[xp] = c;
- } else {
- if (doGrayBlendPixel && qAlpha(dest[xp]) == 255) {
- grayBlendPixel(dest+xp, coverage, slinear, colorProfile);
- } else {
- int ialpha = 255 - coverage;
- dest[xp] = INTERPOLATE_PIXEL_255(c, coverage, dest[xp], ialpha);
- }
- }
-
+ alphamapblend_argb32(dest + xp, coverage, srcColor, c, colorProfile);
} // for (i -> line.count)
} // for (yp -> bottom)
map += mapStride;
@@ -5798,27 +5797,6 @@ static void qt_alphamapblit_uint32(QRasterBuffer *rasterBuffer,
}
}
-
-static void qt_alphamapblit_argb32(QRasterBuffer *rasterBuffer,
- int x, int y, const QRgba64 &color,
- const uchar *map,
- int mapWidth, int mapHeight, int mapStride,
- const QClipData *clip, bool useGammaCorrection)
-{
- qt_alphamapblit_uint32(rasterBuffer, x, y, color.toArgb32(), map, mapWidth, mapHeight, mapStride, clip, useGammaCorrection);
-}
-
-#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
-static void qt_alphamapblit_rgba8888(QRasterBuffer *rasterBuffer,
- int x, int y, const QRgba64 &color,
- const uchar *map,
- int mapWidth, int mapHeight, int mapStride,
- const QClipData *clip, bool useGammaCorrection)
-{
- qt_alphamapblit_uint32(rasterBuffer, x, y, ARGB2RGBA(color.toArgb32()), map, mapWidth, mapHeight, mapStride, clip, useGammaCorrection);
-}
-#endif
-
static inline int qRgbAvg(QRgb rgb)
{
return (qRed(rgb) * 5 + qGreen(rgb) * 6 + qBlue(rgb) * 5) / 16;
@@ -5863,7 +5841,7 @@ static void qt_alphargbblit_generic(QRasterBuffer *rasterBuffer,
const QColorProfile *colorProfile = nullptr;
if (useGammaCorrection)
- colorProfile = QGuiApplicationPrivate::instance()->colorProfileForA8Text();
+ colorProfile = QGuiApplicationPrivate::instance()->colorProfileForA32Text();
QRgba64 srcColor = color;
if (colorProfile) {
@@ -5933,11 +5911,18 @@ static void qt_alphargbblit_argb32(QRasterBuffer *rasterBuffer,
const quint32 c = color.toArgb32();
- const QColorProfile *colorProfile = QGuiApplicationPrivate::instance()->colorProfileForA32Text();
- if (!colorProfile)
- return;
+ const QColorProfile *colorProfile = nullptr;
- const QRgba64 slinear = useGammaCorrection ? colorProfile->toLinear64(c) : color;
+ if (useGammaCorrection)
+ colorProfile = QGuiApplicationPrivate::instance()->colorProfileForA32Text();
+
+ QRgba64 srcColor = color;
+ if (colorProfile) {
+ if (color.isOpaque())
+ srcColor = colorProfile->toLinear(srcColor);
+ else
+ srcColor = colorProfile->toLinear(srcColor.unpremultiplied()).premultiplied();
+ }
if (!clip) {
quint32 *dst = reinterpret_cast<quint32*>(rasterBuffer->scanLine(y)) + x;
@@ -5949,14 +5934,10 @@ static void qt_alphargbblit_argb32(QRasterBuffer *rasterBuffer,
dst[i] = c;
} else if (coverage != 0xff000000) {
if (dst[i] >= 0xff000000) {
- rgbBlendPixel(dst+i, coverage, slinear, colorProfile, useGammaCorrection);
+ rgbBlendPixel(dst + i, coverage, srcColor, colorProfile);
} else {
// Give up and do a gray blend.
- const int a = qRgbAvg(coverage);
- if (useGammaCorrection)
- grayBlendPixel(dst+i, a, slinear, colorProfile);
- else
- dst[i] = INTERPOLATE_PIXEL_255(c, a, dst[i], 255 - a);
+ grayBlendPixel(dst + i, qRgbAvg(coverage), srcColor, colorProfile);
}
}
}
@@ -5988,14 +5969,10 @@ static void qt_alphargbblit_argb32(QRasterBuffer *rasterBuffer,
dst[xp] = c;
} else if (coverage != 0xff000000) {
if (dst[xp] >= 0xff000000) {
- rgbBlendPixel(dst+xp, coverage, slinear, colorProfile, useGammaCorrection);
+ rgbBlendPixel(dst + xp, coverage, srcColor, colorProfile);
} else {
// Give up and do a gray blend.
- const int a = qRgbAvg(coverage);
- if (useGammaCorrection)
- grayBlendPixel(dst+xp, a, slinear, colorProfile);
- else
- dst[xp] = INTERPOLATE_PIXEL_255(c, a, dst[xp], 255 - coverage);
+ grayBlendPixel(dst + xp, qRgbAvg(coverage), srcColor, colorProfile);
}
}
}
@@ -6209,11 +6186,7 @@ DrawHelper qDrawHelper[QImage::NImageFormats] =
blend_color_generic,
blend_src_generic,
qt_bitmapblit_rgba8888,
-#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
- qt_alphamapblit_rgba8888,
-#else
qt_alphamapblit_generic,
-#endif
qt_alphargbblit_generic,
qt_rectfill_rgba
},
@@ -6222,11 +6195,7 @@ DrawHelper qDrawHelper[QImage::NImageFormats] =
blend_color_generic,
blend_src_generic,
qt_bitmapblit_rgba8888,
-#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
- qt_alphamapblit_rgba8888,
-#else
qt_alphamapblit_generic,
-#endif
qt_alphargbblit_generic,
qt_rectfill_nonpremul_rgba
},
@@ -6235,11 +6204,7 @@ DrawHelper qDrawHelper[QImage::NImageFormats] =
blend_color_generic,
blend_src_generic,
qt_bitmapblit_rgba8888,
-#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
- qt_alphamapblit_rgba8888,
-#else
qt_alphamapblit_generic,
-#endif
qt_alphargbblit_generic,
qt_rectfill_rgba
},
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-27 08:28:21 +0000