qsgopenvgcontext.cpp

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// Copyright (C) 2016 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

#include "qsgopenvgcontext_p.h"

#include "qsgopenvgrenderer_p.h"

#include "qsgopenvgpublicnodes.h"

#include "qsgopenvgtexture.h"

#include "qsgopenvglayer.h"

#include "qsgopenvgglyphnode_p.h"

#include "qsgopenvgfontglyphcache.h"

#include "qsgopenvgpainternode.h"

#if QT_CONFIG(quick_sprite)

#include "qsgopenvgspritenode.h"

#endif

#include "qopenvgcontext_p.h"

#include <private/qsgrenderer_p.h>

#include "qsgopenvginternalrectanglenode.h"

#include "qsgopenvginternalimagenode.h"

// polish, animations, sync, render and swap in the render loop

Q_LOGGING_CATEGORY(QSG_OPENVG_LOG_TIME_RENDERLOOP,     "qt.scenegraph.time.renderloop")

QT_BEGIN_NAMESPACE

QSGOpenVGRenderContext::QSGOpenVGRenderContext(QSGContext *context)

    : QSGRenderContext(context)

    , m_vgContext(nullptr)

    , m_glyphCacheManager(nullptr)

void QSGOpenVGRenderContext::initialize(const QSGRenderContext::InitParams *params)

    const InitParams *vgparams = static_cast<const InitParams *>(params);

    if (vgparams->sType != INIT_PARAMS_MAGIC)

        qFatal("Invalid OpenVG render context parameters");

    m_vgContext = vgparams->context;

    QSGRenderContext::initialize(params);

    emit initialized();

void QSGOpenVGRenderContext::invalidate()

    m_vgContext = nullptr;

    delete m_glyphCacheManager;

    m_glyphCacheManager = nullptr;

    QSGRenderContext::invalidate();

    emit invalidated();

void QSGOpenVGRenderContext::renderNextFrame(QSGRenderer *renderer)

    renderer->renderScene();

QSGTexture *QSGOpenVGRenderContext::createTexture(const QImage &image, uint flags) const

    QImage tmp = image;

    // Make sure image is not larger than maxTextureSize

    int maxSize = maxTextureSize();

    if (tmp.width() > maxSize || tmp.height() > maxSize) {

        tmp = tmp.scaled(qMin(maxSize, tmp.width()), qMin(maxSize, tmp.height()), Qt::IgnoreAspectRatio, Qt::FastTransformation);

    return new QSGOpenVGTexture(tmp, flags);

QSGRenderer *QSGOpenVGRenderContext::createRenderer(QSGRendererInterface::RenderMode)

    return new QSGOpenVGRenderer(this);

QSGOpenVGContext::QSGOpenVGContext(QObject *parent)

    Q_UNUSED(parent);

QSGRenderContext *QSGOpenVGContext::createRenderContext()

    return new QSGOpenVGRenderContext(this);

QSGRectangleNode *QSGOpenVGContext::createRectangleNode()

    return new QSGOpenVGRectangleNode;

QSGImageNode *QSGOpenVGContext::createImageNode()

    return new QSGOpenVGImageNode;

QSGPainterNode *QSGOpenVGContext::createPainterNode(QQuickPaintedItem *item)

    Q_UNUSED(item);

    return new QSGOpenVGPainterNode(item);

QSGGlyphNode *QSGOpenVGContext::createGlyphNode(QSGRenderContext *rc, bool preferNativeGlyphNode, int renderTypeQuality)

    Q_UNUSED(preferNativeGlyphNode);

    Q_UNUSED(renderTypeQuality);

    return new QSGOpenVGGlyphNode(rc);

QSGNinePatchNode *QSGOpenVGContext::createNinePatchNode()

    return new QSGOpenVGNinePatchNode;

QSGLayer *QSGOpenVGContext::createLayer(QSGRenderContext *renderContext)

    return new QSGOpenVGLayer(renderContext);

QSurfaceFormat QSGOpenVGContext::defaultSurfaceFormat() const

    QSurfaceFormat format = QSurfaceFormat::defaultFormat();

    format.setRenderableType(QSurfaceFormat::OpenVG);

    format.setMajorVersion(1);

    return format;

QSGInternalRectangleNode *QSGOpenVGContext::createInternalRectangleNode()

    return new QSGOpenVGInternalRectangleNode();

QSGInternalImageNode *QSGOpenVGContext::createInternalImageNode(QSGRenderContext *)

    return new QSGOpenVGInternalImageNode();

int QSGOpenVGRenderContext::maxTextureSize() const

    VGint width = vgGeti(VG_MAX_IMAGE_WIDTH);

    VGint height = vgGeti(VG_MAX_IMAGE_HEIGHT);

    return qMin(width, height);

#if QT_CONFIG(quick_sprite)

QSGSpriteNode *QSGOpenVGContext::createSpriteNode()

    return new QSGOpenVGSpriteNode();

#endif

QSGRendererInterface *QSGOpenVGContext::rendererInterface(QSGRenderContext *renderContext)

    return static_cast<QSGOpenVGRenderContext *>(renderContext);

QSGRendererInterface::GraphicsApi QSGOpenVGRenderContext::graphicsApi() const

    return OpenVG;

QSGRendererInterface::ShaderType QSGOpenVGRenderContext::shaderType() const

    return UnknownShadingLanguage;

QSGRendererInterface::ShaderCompilationTypes QSGOpenVGRenderContext::shaderCompilationType() const

    return 0;

QSGRendererInterface::ShaderSourceTypes QSGOpenVGRenderContext::shaderSourceType() const

    return 0;

QSGOpenVGFontGlyphCache *QSGOpenVGRenderContext::glyphCache(const QRawFont &rawFont)

    if (!m_glyphCacheManager)

        m_glyphCacheManager = new QSGOpenVGFontGlyphCacheManager;

    QSGOpenVGFontGlyphCache *cache = m_glyphCacheManager->cache(rawFont);

    if (!cache) {

        cache = new QSGOpenVGFontGlyphCache(m_glyphCacheManager, rawFont);

        m_glyphCacheManager->insertCache(rawFont, cache);

    return cache;

QT_END_NAMESPACE