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Diffstat (limited to 'src/imports/shapes/qquickshapenvprrenderer_p.h')
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1 files changed, 237 insertions, 0 deletions
diff --git a/src/imports/shapes/qquickshapenvprrenderer_p.h b/src/imports/shapes/qquickshapenvprrenderer_p.h new file mode 100644 index 0000000000..f6c9fc169e --- /dev/null +++ b/src/imports/shapes/qquickshapenvprrenderer_p.h @@ -0,0 +1,237 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtQuick module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/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 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QQUICKSHAPENVPRRENDERER_P_H +#define QQUICKSHAPENVPRRENDERER_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists for the convenience +// of a number of Qt sources files. This header file may change from +// version to version without notice, or even be removed. +// +// We mean it. +// + +#include "qquickshape_p_p.h" +#include "qquicknvprfunctions_p.h" +#include <qsgrendernode.h> +#include <QColor> +#include <QVector4D> +#include <QDebug> + +#if QT_CONFIG(opengl) + +QT_BEGIN_NAMESPACE + +class QQuickShapeNvprRenderNode; +class QOpenGLFramebufferObject; +class QOpenGLBuffer; +class QOpenGLExtraFunctions; + +class QQuickShapeNvprRenderer : public QQuickAbstractPathRenderer +{ +public: + enum Dirty { + DirtyPath = 0x01, + DirtyStyle = 0x02, + DirtyFillRule = 0x04, + DirtyDash = 0x08, + DirtyFillGradient = 0x10, + DirtyList = 0x20 + }; + + void beginSync(int totalCount) override; + void setPath(int index, const QQuickPath *path) override; + void setStrokeColor(int index, const QColor &color) override; + void setStrokeWidth(int index, qreal w) override; + void setFillColor(int index, const QColor &color) override; + void setFillRule(int index, QQuickShapePath::FillRule fillRule) override; + void setJoinStyle(int index, QQuickShapePath::JoinStyle joinStyle, int miterLimit) override; + void setCapStyle(int index, QQuickShapePath::CapStyle capStyle) override; + void setStrokeStyle(int index, QQuickShapePath::StrokeStyle strokeStyle, + qreal dashOffset, const QVector<qreal> &dashPattern) override; + void setFillGradient(int index, QQuickShapeGradient *gradient) override; + void endSync(bool async) override; + + void updateNode() override; + + void setNode(QQuickShapeNvprRenderNode *node); + + struct NvprPath { + QVector<GLubyte> cmd; + QVector<GLfloat> coord; + QByteArray str; + }; + +private: + struct ShapePathGuiData { + int dirty = 0; + NvprPath path; + qreal strokeWidth; + QColor strokeColor; + QColor fillColor; + QQuickShapePath::JoinStyle joinStyle; + int miterLimit; + QQuickShapePath::CapStyle capStyle; + QQuickShapePath::FillRule fillRule; + bool dashActive; + qreal dashOffset; + QVector<qreal> dashPattern; + FillGradientType fillGradientActive; + GradientDesc fillGradient; + }; + + void convertPath(const QQuickPath *path, ShapePathGuiData *d); + + QQuickShapeNvprRenderNode *m_node = nullptr; + int m_accDirty = 0; + + QVector<ShapePathGuiData> m_sp; +}; + +QDebug operator<<(QDebug debug, const QQuickShapeNvprRenderer::NvprPath &path); + +class QQuickNvprMaterialManager +{ +public: + enum Material { + MatSolid, + MatLinearGradient, + MatRadialGradient, + MatConicalGradient, + + NMaterials + }; + + struct MaterialDesc { + GLuint ppl = 0; + GLuint prg = 0; + int uniLoc[8]; + }; + + void create(QQuickNvprFunctions *nvpr); + MaterialDesc *activateMaterial(Material m); + void releaseResources(); + +private: + QQuickNvprFunctions *m_nvpr = nullptr; + MaterialDesc m_materials[NMaterials]; +}; + +class QQuickNvprBlitter +{ +public: + bool create(); + void destroy(); + bool isCreated() const { return m_program != nullptr; } + void texturedQuad(GLuint textureId, const QSize &size, + const QMatrix4x4 &proj, const QMatrix4x4 &modelview, + float opacity); + +private: + QOpenGLShaderProgram *m_program = nullptr; + QOpenGLBuffer *m_buffer = nullptr; + int m_matrixLoc = -1; + int m_opacityLoc = -1; + QSize m_prevSize; +}; + +class QQuickShapeNvprRenderNode : public QSGRenderNode +{ +public: + ~QQuickShapeNvprRenderNode(); + + void render(const RenderState *state) override; + void releaseResources() override; + StateFlags changedStates() const override; + RenderingFlags flags() const override; + + static bool isSupported(); + +private: + struct ShapePathRenderData { + GLuint path = 0; + int dirty = 0; + QQuickShapeNvprRenderer::NvprPath source; + GLfloat strokeWidth; + QVector4D strokeColor; + QVector4D fillColor; + GLenum joinStyle; + GLint miterLimit; + GLenum capStyle; + GLenum fillRule; + GLfloat dashOffset; + QVector<GLfloat> dashPattern; + QQuickAbstractPathRenderer::FillGradientType fillGradientActive; + QQuickAbstractPathRenderer::GradientDesc fillGradient; + QOpenGLFramebufferObject *fallbackFbo = nullptr; + bool fallbackValid = false; + QSize fallbackSize; + QPointF fallbackTopLeft; + + bool hasFill() const { return !qFuzzyIsNull(fillColor.w()) || fillGradientActive; } + bool hasStroke() const { return strokeWidth >= 0.0f && !qFuzzyIsNull(strokeColor.w()); } + }; + + void updatePath(ShapePathRenderData *d); + void renderStroke(ShapePathRenderData *d, int strokeStencilValue, int writeMask); + void renderFill(ShapePathRenderData *d); + void renderOffscreenFill(ShapePathRenderData *d); + void setupStencilForCover(bool stencilClip, int sv); + + static bool nvprInited; + static QQuickNvprFunctions nvpr; + static QQuickNvprMaterialManager mtlmgr; + + QQuickNvprBlitter m_fallbackBlitter; + QOpenGLExtraFunctions *f = nullptr; + + QVector<ShapePathRenderData> m_sp; + + friend class QQuickShapeNvprRenderer; +}; + +QT_END_NAMESPACE + +#endif // QT_CONFIG(opengl) + +#endif // QQUICKSHAPENVPRRENDERER_P_H |