1// Copyright (C) 2023 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#ifndef QQUICKRHIITEM_P_H
5#define QQUICKRHIITEM_P_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists purely as an
12// implementation detail. This header file may change from version to
13// version without notice, or even be removed.
14//
15// We mean it.
16//
17
18#include "qquickrhiitem.h"
19#include <QtQuick/QSGTextureProvider>
20#include <QtQuick/QSGSimpleTextureNode>
21#include <QtQuick/private/qquickitem_p.h>
22#include <rhi/qrhi.h>
23
24QT_BEGIN_NAMESPACE
25
26class QQuickRhiItemNode : public QSGTextureProvider, public QSGSimpleTextureNode
27{
28 Q_OBJECT
29
30public:
31 QQuickRhiItemNode(QQuickRhiItem *item);
32
33 QSGTexture *texture() const override;
34
35 void sync();
36 QRhiCommandBuffer *queryCommandBuffer();
37 void resetColorBufferObjects();
38 void resetRenderTargetObjects();
39
40 bool isValid() const
41 {
42 return m_rhi && m_sgTexture;
43 }
44
45 void scheduleUpdate()
46 {
47 m_renderPending = true;
48 m_window->update(); // ensure getting to beforeRendering() at some point
49 }
50
51 bool hasRenderer() const
52 {
53 return m_renderer != nullptr;
54 }
55
56 void setRenderer(QQuickRhiItemRenderer *r)
57 {
58 m_renderer.reset(p: r);
59 }
60
61 QQuickRhiItem *m_item;
62 QQuickWindow *m_window;
63 QSize m_pixelSize;
64 qreal m_dpr = 0.0f;
65 QRhi *m_rhi = nullptr;
66 bool m_renderPending = true;
67 std::unique_ptr<QSGTexture> m_sgTexture;
68 std::unique_ptr<QQuickRhiItemRenderer> m_renderer;
69 QRhiTexture *m_colorTexture = nullptr;
70 QRhiTexture *m_resolveTexture = nullptr;
71 std::unique_ptr<QRhiRenderBuffer> m_msaaColorBuffer;
72 std::unique_ptr<QRhiRenderBuffer> m_depthStencilBuffer;
73 std::unique_ptr<QRhiTextureRenderTarget> m_renderTarget;
74 std::unique_ptr<QRhiRenderPassDescriptor> m_renderPassDescriptor;
75
76public slots:
77 void render();
78};
79
80class QQuickRhiItemPrivate : public QQuickItemPrivate
81{
82 Q_DECLARE_PUBLIC(QQuickRhiItem)
83
84public:
85 static QQuickRhiItemPrivate *get(QQuickRhiItem *item) { return item->d_func(); }
86
87 mutable QQuickRhiItemNode *node = nullptr;
88 QQuickRhiItem::TextureFormat itemTextureFormat = QQuickRhiItem::TextureFormat::RGBA8;
89 QRhiTexture::Format rhiTextureFormat = QRhiTexture::RGBA8;
90 int samples = 1;
91 bool autoRenderTarget = true;
92 bool mirrorVertically = false;
93 bool blend = false;
94 int fixedTextureWidth = 0;
95 int fixedTextureHeight = 0;
96 QSize effectiveTextureSize;
97};
98
99QT_END_NAMESPACE
100
101#endif
102

source code of qtdeclarative/src/quick/items/qquickrhiitem_p.h