1/****************************************************************************
2**
3** Copyright (C) 2019 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the QtQuick module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** GNU Lesser General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU Lesser
19** General Public License version 3 as published by the Free Software
20** Foundation and appearing in the file LICENSE.LGPL3 included in the
21** packaging of this file. Please review the following information to
22** ensure the GNU Lesser General Public License version 3 requirements
23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
24**
25** GNU General Public License Usage
26** Alternatively, this file may be used under the terms of the GNU
27** General Public License version 2.0 or (at your option) the GNU General
28** Public license version 3 or any later version approved by the KDE Free
29** Qt Foundation. The licenses are as published by the Free Software
30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
31** included in the packaging of this file. Please review the following
32** information to ensure the GNU General Public License requirements will
33** be met: https://www.gnu.org/licenses/gpl-2.0.html and
34** https://www.gnu.org/licenses/gpl-3.0.html.
35**
36** $QT_END_LICENSE$
37**
38****************************************************************************/
39
40#ifndef QSGMATERIALRHISHADER_P_H
41#define QSGMATERIALRHISHADER_P_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/qtquickglobal_p.h>
55#include "qsgmaterialrhishader.h"
56#include "qsgmaterial.h"
57#include <QtGui/private/qrhi_p.h>
58#include <QtGui/private/qshader_p.h>
59
60QT_BEGIN_NAMESPACE
61
62class QRhiSampler;
63
64class Q_QUICK_PRIVATE_EXPORT QSGMaterialRhiShaderPrivate
65{
66public:
67 Q_DECLARE_PUBLIC(QSGMaterialRhiShader)
68
69 QSGMaterialRhiShaderPrivate(QSGMaterialRhiShader *q) : q_ptr(q) { }
70 static QSGMaterialRhiShaderPrivate *get(QSGMaterialRhiShader *s) { return s->d_func(); }
71 static const QSGMaterialRhiShaderPrivate *get(const QSGMaterialRhiShader *s) { return s->d_func(); }
72
73 void clearCachedRendererData();
74 void prepare(QShader::Variant vertexShaderVariant);
75
76 QShader shader(QShader::Stage stage) const { return shaders[stage].shader; }
77
78 static QShader loadShader(const QString &filename);
79
80 QSGMaterialRhiShader *q_ptr;
81 QHash<QShader::Stage, QString> shaderFileNames;
82 QSGMaterialRhiShader::Flags flags;
83
84 struct ShaderStageData {
85 ShaderStageData() { } // so shader.isValid() == false
86 ShaderStageData(const QShader &shader) : shader(shader) { }
87 QShader shader;
88 QShader::Variant shaderVariant = QShader::StandardShader;
89 QVector<int> vertexInputLocations; // excluding rewriter-inserted ones
90 int qt_order_attrib_location = -1; // rewriter-inserted
91 };
92 QHash<QShader::Stage, ShaderStageData> shaders;
93
94 static const int MAX_SHADER_RESOURCE_BINDINGS = 32;
95
96 int ubufBinding = -1;
97 int ubufSize = 0;
98 QRhiShaderResourceBinding::StageFlags ubufStages;
99 QRhiShaderResourceBinding::StageFlags combinedImageSamplerBindings[MAX_SHADER_RESOURCE_BINDINGS];
100
101 ShaderStageData *vertexShader = nullptr;
102 ShaderStageData *fragmentShader = nullptr;
103
104 QByteArray masterUniformData;
105
106 QSGTexture *textureBindingTable[MAX_SHADER_RESOURCE_BINDINGS];
107 QRhiSampler *samplerBindingTable[MAX_SHADER_RESOURCE_BINDINGS];
108};
109
110Q_DECLARE_TYPEINFO(QSGMaterialRhiShaderPrivate::ShaderStageData, Q_MOVABLE_TYPE);
111
112QT_END_NAMESPACE
113
114#endif // QSGMATERIALRHISHADER_P_H
115