diff options
Diffstat (limited to 'src/gui/painting/qdrawhelper.cpp')
| -rw-r--r-- | src/gui/painting/qdrawhelper.cpp | 44 |
1 files changed, 25 insertions, 19 deletions
diff --git a/src/gui/painting/qdrawhelper.cpp b/src/gui/painting/qdrawhelper.cpp index 53edbb0..23236ec 100644 --- a/src/gui/painting/qdrawhelper.cpp +++ b/src/gui/painting/qdrawhelper.cpp @@ -1182,7 +1182,7 @@ static const uint * QT_FASTCALL fetchConicalGradient(uint *buffer, const Operato rx -= data->gradient.conical.center.x; ry -= data->gradient.conical.center.y; while (buffer < end) { - qreal angle = atan2(ry, rx) + data->gradient.conical.angle; + qreal angle = qAtan2(ry, rx) + data->gradient.conical.angle; *buffer = qt_gradient_pixel(&data->gradient, 1 - angle / (2*Q_PI)); @@ -1196,7 +1196,7 @@ static const uint * QT_FASTCALL fetchConicalGradient(uint *buffer, const Operato if (!rw) rw = 1; while (buffer < end) { - qreal angle = atan2(ry/rw - data->gradient.conical.center.x, + qreal angle = qAtan2(ry/rw - data->gradient.conical.center.x, rx/rw - data->gradient.conical.center.y) + data->gradient.conical.angle; @@ -2386,12 +2386,12 @@ static void QT_FASTCALL comp_func_HardLight(uint *dest, const uint *src, int len } /* - if 2.Sca < Sa - Dca' = Dca.(Sa - (1 - Dca/Da).(2.Sca - Sa)) + Sca.(1 - Da) + Dca.(1 - Sa) - otherwise if 8.Dca <= Da - Dca' = Dca.(Sa - (1 - Dca/Da).(2.Sca - Sa).(3 - 8.Dca/Da)) + Sca.(1 - Da) + Dca.(1 - Sa) - otherwise - Dca' = (Dca.Sa + ((Dca/Da)^(0.5).Da - Dca).(2.Sca - Sa)) + Sca.(1 - Da) + Dca.(1 - Sa) + if 2.Sca <= Sa + Dca' = Dca.(Sa + (2.Sca - Sa).(1 - Dca/Da)) + Sca.(1 - Da) + Dca.(1 - Sa) + otherwise if 2.Sca > Sa and 4.Dca <= Da + Dca' = Dca.Sa + Da.(2.Sca - Sa).(4.Dca/Da.(4.Dca/Da + 1).(Dca/Da - 1) + 7.Dca/Da) + Sca.(1 - Da) + Dca.(1 - Sa) + otherwise if 2.Sca > Sa and 4.Dca > Da + Dca' = Dca.Sa + Da.(2.Sca - Sa).((Dca/Da)^0.5 - Dca/Da) + Sca.(1 - Da) + Dca.(1 - Sa) */ static inline int soft_light_op(int dst, int src, int da, int sa) { @@ -2400,13 +2400,11 @@ static inline int soft_light_op(int dst, int src, int da, int sa) const int temp = (src * (255 - da) + dst * (255 - sa)) * 255; if (src2 < sa) - return (dst * ((sa * 255) - (255 - dst_np) * (src2 - sa)) + temp) / 65025; - else if (8 * dst <= da) - return (dst * ((sa * 255) - ((255 - dst_np) * (src2 - sa) * ((3 * 255) - 8 * dst_np)) / 255) + temp) / 65025; + return (dst * (sa * 255 + (src2 - sa) * (255 - dst_np)) + temp) / 65025; + else if (4 * dst <= da) + return (dst * sa * 255 + da * (src2 - sa) * ((((16 * dst_np - 12 * 255) * dst_np + 3 * 65025) * dst_np) / 65025) + temp) / 65025; else { - // sqrt is too expensive to do three times per pixel, so skipping it for now - // a future possibility is to use a LUT - return ((dst * sa * 255) + (int(dst_np) * da - (dst * 255)) * (src2 - sa) + temp) / 65025; + return (dst * sa * 255 + da * (src2 - sa) * (int(sqrt(qreal(dst_np * 255))) - dst_np) + temp) / 65025; } } @@ -7142,17 +7140,17 @@ void qt_build_pow_tables() { } #else for (int i=0; i<256; ++i) { - qt_pow_rgb_gamma[i] = uchar(qRound(pow(i / qreal(255.0), smoothing) * 255)); - qt_pow_rgb_invgamma[i] = uchar(qRound(pow(i / qreal(255.), 1 / smoothing) * 255)); + qt_pow_rgb_gamma[i] = uchar(qRound(qPow(i / qreal(255.0), smoothing) * 255)); + qt_pow_rgb_invgamma[i] = uchar(qRound(qPow(i / qreal(255.), 1 / smoothing) * 255)); } #endif #if defined(Q_OS_WIN) && !defined(Q_OS_WINCE) const qreal gray_gamma = 2.31; for (int i=0; i<256; ++i) - qt_pow_gamma[i] = uint(qRound(pow(i / qreal(255.), gray_gamma) * 2047)); + qt_pow_gamma[i] = uint(qRound(qPow(i / qreal(255.), gray_gamma) * 2047)); for (int i=0; i<2048; ++i) - qt_pow_invgamma[i] = uchar(qRound(pow(i / 2047.0, 1 / gray_gamma) * 255)); + qt_pow_invgamma[i] = uchar(qRound(qPow(i / 2047.0, 1 / gray_gamma) * 255)); #endif } @@ -7424,6 +7422,14 @@ QT_RECTFILL(qrgb444) QT_RECTFILL(qargb4444) #undef QT_RECTFILL +inline static void qt_rectfill_nonpremul_quint32(QRasterBuffer *rasterBuffer, + int x, int y, int width, int height, + quint32 color) +{ + qt_rectfill<quint32>(reinterpret_cast<quint32 *>(rasterBuffer->buffer()), + INV_PREMUL(color), x, y, width, height, rasterBuffer->bytesPerLine()); +} + // Map table for destination image format. Contains function pointers // for blends of various types unto the destination @@ -7466,7 +7472,7 @@ DrawHelper qDrawHelper[QImage::NImageFormats] = qt_bitmapblit_quint32, qt_alphamapblit_quint32, qt_alphargbblit_quint32, - qt_rectfill_quint32 + qt_rectfill_nonpremul_quint32 }, // Format_ARGB32_Premultiplied { |