diff options
Diffstat (limited to 'src/gui')
| -rw-r--r-- | src/gui/doc/src/qtgui.qdoc | 5 | ||||
| -rw-r--r-- | src/gui/painting/qdrawhelper.cpp | 58 | ||||
| -rw-r--r-- | src/gui/vulkan/qvulkanwindow.cpp | 14 |
3 files changed, 58 insertions, 19 deletions
diff --git a/src/gui/doc/src/qtgui.qdoc b/src/gui/doc/src/qtgui.qdoc index a425c8a84d..53fd55bd39 100644 --- a/src/gui/doc/src/qtgui.qdoc +++ b/src/gui/doc/src/qtgui.qdoc @@ -46,11 +46,12 @@ \snippet code/doc_src_qtgui.pro 0 + \if !defined(qtforpython) If you use \l qmake to build your projects, \l{Qt GUI} is included by default. To disable Qt GUI, add the following line to your \c .pro file: \snippet code/doc_src_qtgui.pro 1 - + \endif */ /*! @@ -75,10 +76,12 @@ \snippet code/doc_src_qtgui.pro 0 + \if !defined(qtforpython) If you use \l qmake to build your projects, Qt GUI is included by default. To disable Qt GUI, add the following line to your \c .pro file: \snippet code/doc_src_qtgui.pro 1 + \endif \section1 Application Windows diff --git a/src/gui/painting/qdrawhelper.cpp b/src/gui/painting/qdrawhelper.cpp index 8f189994f1..582e403e4c 100644 --- a/src/gui/painting/qdrawhelper.cpp +++ b/src/gui/painting/qdrawhelper.cpp @@ -5689,6 +5689,46 @@ static inline int qRgbAvg(QRgb rgb) return (qRed(rgb) * 5 + qGreen(rgb) * 6 + qBlue(rgb) * 5) / 16; } +static inline QRgb rgbBlend(QRgb d, QRgb s, uint rgbAlpha) +{ +#if defined(__SSE2__) + __m128i vd = _mm_cvtsi32_si128(d); + __m128i vs = _mm_cvtsi32_si128(s); + __m128i va = _mm_cvtsi32_si128(rgbAlpha); + const __m128i vz = _mm_setzero_si128(); + vd = _mm_unpacklo_epi8(vd, vz); + vs = _mm_unpacklo_epi8(vs, vz); + va = _mm_unpacklo_epi8(va, vz); + __m128i vb = _mm_xor_si128(_mm_set1_epi16(255), va); + vs = _mm_mullo_epi16(vs, va); + vd = _mm_mullo_epi16(vd, vb); + vd = _mm_add_epi16(vd, vs); + vd = _mm_add_epi16(vd, _mm_srli_epi16(vd, 8)); + vd = _mm_add_epi16(vd, _mm_set1_epi16(0x80)); + vd = _mm_srli_epi16(vd, 8); + vd = _mm_packus_epi16(vd, vd); + return _mm_cvtsi128_si32(vd); +#else + const int dr = qRed(d); + const int dg = qGreen(d); + const int db = qBlue(d); + + const int sr = qRed(s); + const int sg = qGreen(s); + const int sb = qBlue(s); + + const int mr = qRed(rgbAlpha); + const int mg = qGreen(rgbAlpha); + const int mb = qBlue(rgbAlpha); + + const int nr = qt_div_255(sr * mr + dr * (255 - mr)); + const int ng = qt_div_255(sg * mg + dg * (255 - mg)); + const int nb = qt_div_255(sb * mb + db * (255 - mb)); + + return 0xff000000 | (nr << 16) | (ng << 8) | nb; +#endif +} + static inline void alphargbblend_generic(uint coverage, QRgba64 *dest, int x, const QRgba64 &srcLinear, const QRgba64 &src, const QColorProfile *colorProfile) { if (coverage == 0xff000000) { @@ -5711,20 +5751,20 @@ static inline void alphargbblend_generic(uint coverage, QRgba64 *dest, int x, co } } -static inline void alphargbblend_argb32(quint32 *dst, uint coverage, QRgba64 srcLinear, quint32 src, const QColorProfile *colorProfile) +static inline void alphargbblend_argb32(quint32 *dst, uint coverage, const QRgba64 &srcLinear, quint32 src, const QColorProfile *colorProfile) { if (coverage == 0xff000000) { // nothing } else if (coverage == 0xffffffff) { *dst = src; - } else { - if (*dst >= 0xff000000) { - rgbBlendPixel(dst, coverage, srcLinear, colorProfile); - } else { - // Give up and do a naive gray alphablend. Needed to deal with ARGB32 and invalid ARGB32_premultiplied, see QTBUG-60571 - const int a = qRgbAvg(coverage); - *dst = INTERPOLATE_PIXEL_255(src, a, *dst, 255 - a); - } + } else if (*dst < 0xff000000) { + // Give up and do a naive gray alphablend. Needed to deal with ARGB32 and invalid ARGB32_premultiplied, see QTBUG-60571 + const int a = qRgbAvg(coverage); + *dst = INTERPOLATE_PIXEL_255(src, a, *dst, 255 - a); + } else if (!colorProfile) { + *dst = rgbBlend(*dst, src, coverage); + } else { + rgbBlendPixel(dst, coverage, srcLinear, colorProfile); } } diff --git a/src/gui/vulkan/qvulkanwindow.cpp b/src/gui/vulkan/qvulkanwindow.cpp index 7dea743ea8..e45a16170e 100644 --- a/src/gui/vulkan/qvulkanwindow.cpp +++ b/src/gui/vulkan/qvulkanwindow.cpp @@ -2694,15 +2694,11 @@ QImage QVulkanWindow::grab() system differences between OpenGL and Vulkan. By pre-multiplying the projection matrix with this matrix, applications can - continue to assume OpenGL-style Y coordinates in clip space (i.e. Y pointing - upwards), and can set minDepth and maxDepth to 0 and 1, respectively, - without any further corrections to the vertex Z positions, while using the - projection matrices retrieved from the QMatrix4x4 functions, such as - QMatrix4x4::perspective(), as-is. - - \note With vertex data following the default OpenGL rules (that is, the - front face being CCW), the correct winding order in the rasterization state - after applying this matrix is clockwise (\c{VK_FRONT_FACE_CLOCKWISE}). + continue to assume that Y is pointing upwards, and can set minDepth and + maxDepth in the viewport to 0 and 1, respectively, without having to do any + further corrections to the vertex Z positions. Geometry from OpenGL + applications can then be used as-is, assuming a rasterization state matching + the OpenGL culling and front face settings. */ QMatrix4x4 QVulkanWindow::clipCorrectionMatrix() { |