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39
40#ifndef QSGSOFTWARECONTEXT_H
41#define QSGSOFTWARECONTEXT_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <private/qsgcontext_p.h>
55#include <private/qsgadaptationlayer_p.h>
56#include "qsgrendererinterface.h"
57
58Q_DECLARE_LOGGING_CATEGORY(QSG_RASTER_LOG_TIME_RENDERLOOP)
59Q_DECLARE_LOGGING_CATEGORY(QSG_RASTER_LOG_TIME_COMPILATION)
60Q_DECLARE_LOGGING_CATEGORY(QSG_RASTER_LOG_TIME_TEXTURE)
61Q_DECLARE_LOGGING_CATEGORY(QSG_RASTER_LOG_TIME_GLYPH)
62Q_DECLARE_LOGGING_CATEGORY(QSG_RASTER_LOG_TIME_RENDERER)
63Q_DECLARE_LOGGING_CATEGORY(QSG_RASTER_LOG_INFO)
64Q_DECLARE_LOGGING_CATEGORY(QSG_RASTER_LOG_RENDERLOOP)
65
66QT_BEGIN_NAMESPACE
67
68class QSGSoftwareRenderContext : public QSGRenderContext
69{
70 Q_OBJECT
71public:
72 QSGSoftwareRenderContext(QSGContext *ctx);
73 void initializeIfNeeded();
74 void invalidate() override;
75 void renderNextFrame(QSGRenderer *renderer, uint fbo) override;
76 QSGTexture *createTexture(const QImage &image, uint flags = CreateTexture_Alpha) const override;
77 QSGRenderer *createRenderer() override;
78 int maxTextureSize() const override;
79
80 bool m_initialized;
81 QPainter *m_activePainter;
82};
83
84class QSGSoftwareContext : public QSGContext, public QSGRendererInterface
85{
86 Q_OBJECT
87public:
88 explicit QSGSoftwareContext(QObject *parent = nullptr);
89
90 QSGRenderContext *createRenderContext() override { return new QSGSoftwareRenderContext(this); }
91 QSGInternalRectangleNode *createInternalRectangleNode() override;
92 QSGInternalImageNode *createInternalImageNode(QSGRenderContext *renderContext) override;
93 QSGPainterNode *createPainterNode(QQuickPaintedItem *item) override;
94 QSGGlyphNode *createGlyphNode(QSGRenderContext *rc, bool preferNativeGlyphNode) override;
95 QSGLayer *createLayer(QSGRenderContext *renderContext) override;
96 QSurfaceFormat defaultSurfaceFormat() const override;
97 QSGRendererInterface *rendererInterface(QSGRenderContext *renderContext) override;
98 QSGRectangleNode *createRectangleNode() override;
99 QSGImageNode *createImageNode() override;
100 QSGNinePatchNode *createNinePatchNode() override;
101#if QT_CONFIG(quick_sprite)
102 QSGSpriteNode *createSpriteNode() override;
103#endif
104
105 GraphicsApi graphicsApi() const override;
106 ShaderType shaderType() const override;
107 ShaderCompilationTypes shaderCompilationType() const override;
108 ShaderSourceTypes shaderSourceType() const override;
109 void *getResource(QQuickWindow *window, Resource resource) const override;
110};
111
112QT_END_NAMESPACE
113
114#endif // QSGSOFTWARECONTEXT_H
115

source code of qtdeclarative/src/quick/scenegraph/adaptations/software/qsgsoftwarecontext_p.h