diff options
Diffstat (limited to 'src/plugins/platforms/direct2d/qwindowsdirect2dpaintengine.cpp')
| -rw-r--r-- | src/plugins/platforms/direct2d/qwindowsdirect2dpaintengine.cpp | 234 |
1 files changed, 189 insertions, 45 deletions
diff --git a/src/plugins/platforms/direct2d/qwindowsdirect2dpaintengine.cpp b/src/plugins/platforms/direct2d/qwindowsdirect2dpaintengine.cpp index 1d28befe41..c13f0f333a 100644 --- a/src/plugins/platforms/direct2d/qwindowsdirect2dpaintengine.cpp +++ b/src/plugins/platforms/direct2d/qwindowsdirect2dpaintengine.cpp @@ -5,36 +5,28 @@ ** ** This file is part of the plugins of the Qt Toolkit. ** -** $QT_BEGIN_LICENSE:LGPL$ +** $QT_BEGIN_LICENSE:LGPL21$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information +** a written agreement between you and Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information ** use the contact form at http://qt.digia.com/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** General Public License version 2.1 or version 3 as published by the Free +** Software Foundation and appearing in the file LICENSE.LGPLv21 and +** LICENSE.LGPLv3 included in the packaging of this file. Please review the +** following information to ensure the GNU Lesser General Public License +** requirements will be met: https://www.gnu.org/licenses/lgpl.html and +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception +** rights. These rights are described in the Digia Qt LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3.0 as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU General Public License version 3.0 requirements will be -** met: http://www.gnu.org/copyleft/gpl.html. -** -** ** $QT_END_LICENSE$ ** ****************************************************************************/ @@ -51,6 +43,7 @@ #include "qwindowsfontdatabase.h" #include "qwindowsintegration.h" +#include <QtCore/QtMath> #include <QtCore/QStack> #include <QtCore/QSettings> #include <QtGui/private/qpaintengine_p.h> @@ -109,11 +102,14 @@ static inline ID2D1Factory1 *factory() return QWindowsDirect2DContext::instance()->d2dFactory(); } -inline static FLOAT pixelSizeToDIP(int pixelSize) +static inline D2D1_MATRIX_3X2_F transformFromLine(const QLineF &line, qreal penWidth) { - FLOAT dpiX, dpiY; - QWindowsDirect2DContext::instance()->d2dFactory()->GetDesktopDpi(&dpiX, &dpiY); - return FLOAT(pixelSize) * 96.0f / dpiY; + const qreal halfWidth = penWidth / 2; + const qreal angle = -qDegreesToRadians(line.angle()); + QTransform transform = QTransform::fromTranslate(line.p1().x() + qSin(angle) * halfWidth, + line.p1().y() - qCos(angle) * halfWidth); + transform.rotateRadians(angle); + return to_d2d_matrix_3x2_f(transform); } class Direct2DPathGeometryWriter @@ -245,6 +241,7 @@ public: } QWindowsDirect2DBitmap *bitmap; + QImage fallbackImage; unsigned int clipFlags; QStack<ClipType> pushedClips; @@ -259,12 +256,14 @@ public: QPen qpen; ComPtr<ID2D1Brush> brush; ComPtr<ID2D1StrokeStyle1> strokeStyle; + ComPtr<ID2D1BitmapBrush1> dashBrush; inline void reset() { emulate = false; qpen = QPen(); brush.Reset(); strokeStyle.Reset(); + dashBrush.Reset(); } } pen; @@ -300,6 +299,14 @@ public: : D2D1_ANTIALIAS_MODE_ALIASED; } + inline D2D1_LAYER_OPTIONS1 layerOptions() const + { + if (flags & QWindowsDirect2DPaintEngine::TranslucentTopLevelWindow) + return D2D1_LAYER_OPTIONS1_NONE; + else + return D2D1_LAYER_OPTIONS1_INITIALIZE_FROM_BACKGROUND; + } + void updateTransform(const QTransform &transform) { dc()->SetTransform(to_d2d_matrix_3x2_f(transform)); @@ -345,7 +352,7 @@ public: D2D1::IdentityMatrix(), 1.0, NULL, - D2D1_LAYER_OPTIONS1_NONE), + layerOptions()), NULL); pushedClips.push(LayerClip); } @@ -400,7 +407,10 @@ public: break; default: - qWarning("Unsupported composition mode: %d", mode); + // Activating an unsupported mode at any time will cause the QImage + // fallback to be used for the remainder of the active paint session + dc()->SetPrimitiveBlend(D2D1_PRIMITIVE_BLEND_COPY); + flags |= QWindowsDirect2DPaintEngine::EmulateComposition; break; } } @@ -531,12 +541,31 @@ public: if (props.dashStyle == D2D1_DASH_STYLE_CUSTOM) { QVector<qreal> dashes = newPen.dashPattern(); QVector<FLOAT> converted(dashes.size()); - + qreal penWidth = pen.qpen.widthF(); + qreal brushWidth = 0; for (int i = 0; i < dashes.size(); i++) { converted[i] = dashes[i]; + brushWidth += penWidth * dashes[i]; } hr = factory()->CreateStrokeStyle(props, converted.constData(), converted.size(), &pen.strokeStyle); + + // Create a combined brush/dash pattern for optimized line drawing + QWindowsDirect2DBitmap bitmap; + bitmap.resize(ceil(brushWidth), ceil(penWidth)); + bitmap.deviceContext()->begin(); + bitmap.deviceContext()->get()->SetAntialiasMode(antialiasMode()); + bitmap.deviceContext()->get()->SetTransform(D2D1::IdentityMatrix()); + bitmap.deviceContext()->get()->Clear(); + const qreal offsetX = (qreal(bitmap.size().width()) - brushWidth) / 2; + const qreal offsetY = qreal(bitmap.size().height()) / 2; + bitmap.deviceContext()->get()->DrawLine(D2D1::Point2F(offsetX, offsetY), + D2D1::Point2F(brushWidth, offsetY), + pen.brush.Get(), penWidth, pen.strokeStyle.Get()); + bitmap.deviceContext()->end(); + D2D1_BITMAP_BRUSH_PROPERTIES1 bitmapBrushProperties = D2D1::BitmapBrushProperties1( + D2D1_EXTEND_MODE_WRAP, D2D1_EXTEND_MODE_CLAMP, D2D1_INTERPOLATION_MODE_LINEAR); + hr = dc()->CreateBitmapBrush(bitmap.bitmap(), bitmapBrushProperties, &pen.dashBrush); } else { hr = factory()->CreateStrokeStyle(props, NULL, 0, &pen.strokeStyle); } @@ -858,19 +887,19 @@ public: Q_Q(QWindowsDirect2DPaintEngine); DWRITE_GLYPH_RUN glyphRun = { - fontFace, // IDWriteFontFace *fontFace; - pixelSizeToDIP(fontDef.pixelSize), // FLOAT fontEmSize; - numGlyphs, // UINT32 glyphCount; - glyphIndices, // const UINT16 *glyphIndices; - glyphAdvances, // const FLOAT *glyphAdvances; - glyphOffsets, // const DWRITE_GLYPH_OFFSET *glyphOffsets; - FALSE, // BOOL isSideways; - rtl ? 1 : 0 // UINT32 bidiLevel; + fontFace, // IDWriteFontFace *fontFace; + fontDef.pixelSize, // FLOAT fontEmSize; + numGlyphs, // UINT32 glyphCount; + glyphIndices, // const UINT16 *glyphIndices; + glyphAdvances, // const FLOAT *glyphAdvances; + glyphOffsets, // const DWRITE_GLYPH_OFFSET *glyphOffsets; + FALSE, // BOOL isSideways; + rtl ? 1 : 0 // UINT32 bidiLevel; }; const bool antiAlias = bool((q->state()->renderHints & QPainter::TextAntialiasing) && !(fontDef.styleStrategy & QFont::NoAntialias)); - const D2D1_TEXT_ANTIALIAS_MODE antialiasMode = (flags & QWindowsDirect2DPaintEngine::UseGrayscaleAntialiasing) + const D2D1_TEXT_ANTIALIAS_MODE antialiasMode = (flags & QWindowsDirect2DPaintEngine::TranslucentTopLevelWindow) ? D2D1_TEXT_ANTIALIAS_MODE_GRAYSCALE : D2D1_TEXT_ANTIALIAS_MODE_CLEARTYPE; dc()->SetTextAntialiasMode(antiAlias ? antialiasMode : D2D1_TEXT_ANTIALIAS_MODE_ALIASED); @@ -956,7 +985,7 @@ bool QWindowsDirect2DPaintEngine::begin(QPaintDevice * pdev) D2D1::IdentityMatrix(), 1.0, NULL, - D2D1_LAYER_OPTIONS1_NONE), + d->layerOptions()), NULL); } else { QRect clip(0, 0, pdev->width(), pdev->height()); @@ -975,7 +1004,17 @@ bool QWindowsDirect2DPaintEngine::begin(QPaintDevice * pdev) bool QWindowsDirect2DPaintEngine::end() { Q_D(QWindowsDirect2DPaintEngine); - // First pop any user-applied clipping + + // Always clear all emulation-related things so we are in a clean state for our next painting run + const bool emulatingComposition = d->flags.testFlag(EmulateComposition); + d->flags &= ~QWindowsDirect2DPaintEngine::EmulateComposition; + if (!d->fallbackImage.isNull()) { + if (emulatingComposition) + drawImage(d->fallbackImage.rect(), d->fallbackImage, d->fallbackImage.rect()); + d->fallbackImage = QImage(); + } + + // Pop any user-applied clipping d->clearClips(); // Now the system clip from begin() above if (d->clipFlags & SimpleSystemClip) { @@ -984,6 +1023,7 @@ bool QWindowsDirect2DPaintEngine::end() } else { d->dc()->PopLayer(); } + return d->bitmap->deviceContext()->end(); } @@ -1288,7 +1328,12 @@ void QWindowsDirect2DPaintEngine::drawLines(const QLine *lines, int lineCount) D2D1_POINT_2F d2d_p1 = to_d2d_point_2f(p1); D2D1_POINT_2F d2d_p2 = to_d2d_point_2f(p2); - d->dc()->DrawLine(d2d_p1, d2d_p2, d->pen.brush.Get(), d->pen.qpen.widthF(), d->pen.strokeStyle.Get()); + if (!d->pen.dashBrush || state()->renderHints.testFlag(QPainter::HighQualityAntialiasing)) { + d->dc()->DrawLine(d2d_p1, d2d_p2, d->pen.brush.Get(), d->pen.qpen.widthF(), d->pen.strokeStyle.Get()); + } else { + d->pen.dashBrush->SetTransform(transformFromLine(lines[i], d->pen.qpen.widthF())); + d->dc()->DrawLine(d2d_p1, d2d_p2, d->pen.dashBrush.Get(), d->pen.qpen.widthF(), NULL); + } } } } @@ -1324,7 +1369,12 @@ void QWindowsDirect2DPaintEngine::drawLines(const QLineF *lines, int lineCount) D2D1_POINT_2F d2d_p1 = to_d2d_point_2f(p1); D2D1_POINT_2F d2d_p2 = to_d2d_point_2f(p2); - d->dc()->DrawLine(d2d_p1, d2d_p2, d->pen.brush.Get(), d->pen.qpen.widthF(), d->pen.strokeStyle.Get()); + if (!d->pen.dashBrush || state()->renderHints.testFlag(QPainter::HighQualityAntialiasing)) { + d->dc()->DrawLine(d2d_p1, d2d_p2, d->pen.brush.Get(), d->pen.qpen.widthF(), d->pen.strokeStyle.Get()); + } else { + d->pen.dashBrush->SetTransform(transformFromLine(lines[i], d->pen.qpen.widthF())); + d->dc()->DrawLine(d2d_p1, d2d_p2, d->pen.dashBrush.Get(), d->pen.qpen.widthF(), NULL); + } } } } @@ -1413,6 +1463,19 @@ void QWindowsDirect2DPaintEngine::drawPixmap(const QRectF &r, return; } + if (d->flags.testFlag(EmulateComposition)) { + const qreal points[] = { + r.x(), r.y(), + r.x() + r.width(), r.y(), + r.x() + r.width(), r.y() + r.height(), + r.x(), r.y() + r.height() + }; + const QVectorPath vp(points, 4, 0, QVectorPath::RectangleHint); + const QBrush brush(sr.isValid() ? pm.copy(sr.toRect()) : pm); + rasterFill(vp, brush); + return; + } + QWindowsDirect2DPlatformPixmap *pp = static_cast<QWindowsDirect2DPlatformPixmap *>(pm.handle()); QWindowsDirect2DBitmap *bitmap = pp->bitmap(); @@ -1596,9 +1659,17 @@ void QWindowsDirect2DPaintEngine::rasterFill(const QVectorPath &path, const QBru { Q_D(QWindowsDirect2DPaintEngine); - QImage img(d->bitmap->size(), QImage::Format_ARGB32); - img.fill(Qt::transparent); + if (d->fallbackImage.isNull()) { + if (d->flags.testFlag(EmulateComposition)) { + QWindowsDirect2DPaintEngineSuspender suspender(this); + d->fallbackImage = d->bitmap->toImage(); + } else { + d->fallbackImage = QImage(d->bitmap->size(), QImage::Format_ARGB32_Premultiplied); + d->fallbackImage.fill(Qt::transparent); + } + } + QImage &img = d->fallbackImage; QPainter p; QPaintEngine *engine = img.paintEngine(); @@ -1645,11 +1716,14 @@ void QWindowsDirect2DPaintEngine::rasterFill(const QVectorPath &path, const QBru if (!p.end()) qWarning("%s: Paint Engine end returned false", __FUNCTION__); - d->updateClipEnabled(false); - d->updateTransform(QTransform()); - drawImage(img.rect(), img, img.rect()); - transformChanged(); - clipEnabledChanged(); + if (!d->flags.testFlag(EmulateComposition)) { // Emulated fallback will be flattened in end() + d->updateClipEnabled(false); + d->updateTransform(QTransform()); + drawImage(img.rect(), img, img.rect()); + d->fallbackImage = QImage(); + transformChanged(); + clipEnabledChanged(); + } } else { qWarning("%s: Could not fall back to QImage", __FUNCTION__); } @@ -1659,6 +1733,9 @@ bool QWindowsDirect2DPaintEngine::emulationRequired(EmulationType type) const { Q_D(const QWindowsDirect2DPaintEngine); + if (d->flags.testFlag(EmulateComposition)) + return true; + if (!state()->matrix.isAffine()) return true; @@ -1698,4 +1775,71 @@ void QWindowsDirect2DPaintEngine::adjustForAliasing(QPointF *point) (*point) += adjustment; } +void QWindowsDirect2DPaintEngine::suspend() +{ + end(); +} + +void QWindowsDirect2DPaintEngine::resume() +{ + begin(paintDevice()); + clipEnabledChanged(); + penChanged(); + brushChanged(); + brushOriginChanged(); + opacityChanged(); + compositionModeChanged(); + renderHintsChanged(); + transformChanged(); +} + +class QWindowsDirect2DPaintEngineSuspenderImpl +{ + Q_DISABLE_COPY(QWindowsDirect2DPaintEngineSuspenderImpl) + QWindowsDirect2DPaintEngine *m_engine; + bool m_active; +public: + QWindowsDirect2DPaintEngineSuspenderImpl(QWindowsDirect2DPaintEngine *engine) + : m_engine(engine) + , m_active(engine->isActive()) + { + if (m_active) + m_engine->suspend(); + } + + ~QWindowsDirect2DPaintEngineSuspenderImpl() + { + if (m_active) + m_engine->resume(); + } +}; + +class QWindowsDirect2DPaintEngineSuspenderPrivate +{ +public: + QWindowsDirect2DPaintEngineSuspenderPrivate(QWindowsDirect2DPaintEngine *engine) + : engineSuspender(engine) + , dcSuspender(static_cast<QWindowsDirect2DPaintEnginePrivate *>(engine->d_ptr.data())->bitmap->deviceContext()) + { + } + + QWindowsDirect2DPaintEngineSuspenderImpl engineSuspender; + QWindowsDirect2DDeviceContextSuspender dcSuspender; +}; + +QWindowsDirect2DPaintEngineSuspender::QWindowsDirect2DPaintEngineSuspender(QWindowsDirect2DPaintEngine *engine) + : d_ptr(new QWindowsDirect2DPaintEngineSuspenderPrivate(engine)) +{ + +} + +QWindowsDirect2DPaintEngineSuspender::~QWindowsDirect2DPaintEngineSuspender() +{ +} + +void QWindowsDirect2DPaintEngineSuspender::resume() +{ + d_ptr.reset(); +} + QT_END_NAMESPACE |