1// Copyright (C) 2019 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
3
4#ifndef QSSGRHICONTEXT_H
5#define QSSGRHICONTEXT_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is part of the QtQuick3D API, with limited compatibility guarantees.
12// Usage of this API may make your code source and binary incompatible with
13// future versions of Qt.
14//
15
16#include <QtCore/qstack.h>
17#include <rhi/qrhi.h>
18
19#include <QtQuick3DRuntimeRender/qtquick3druntimerenderexports.h>
20
21QT_BEGIN_NAMESPACE
22
23class QSSGRhiContextPrivate;
24class QSSGRhiShaderPipeline;
25
26class QSSGRhiGraphicsPipelineState
27{
28public:
29 enum class Flag : quint32
30 {
31 DepthTestEnabled = 0x1,
32 DepthWriteEnabled = 0x2,
33 BlendEnabled = 0x4,
34 UsesStencilRef = 0x8,
35 UsesScissor = 0x10
36 };
37 Q_DECLARE_FLAGS(Flags, Flag)
38
39 QRhiGraphicsPipeline::CompareOp depthFunc = QRhiGraphicsPipeline::LessOrEqual;
40 QRhiGraphicsPipeline::CullMode cullMode = QRhiGraphicsPipeline::None;
41 QRhiGraphicsPipeline::TargetBlend targetBlend;
42 QRhiGraphicsPipeline::PolygonMode polygonMode = QRhiGraphicsPipeline::Fill;
43 QRhiGraphicsPipeline::StencilOpState stencilOpFrontState {};
44 quint32 stencilWriteMask = 0xFF;
45 quint32 stencilRef = 0;
46 int depthBias = 0;
47 int samples = 1;
48 int colorAttachmentCount = 1;
49 int viewCount = 1;
50 float slopeScaledDepthBias = 0.0f;
51 float lineWidth = 1.0f;
52 Flags flags;
53 QRhiViewport viewport;
54 QRhiScissor scissor;
55
56private:
57 friend struct QSSGRhiGraphicsPipelineStatePrivate;
58 friend struct QSSGRhiInputAssemblerStatePrivate;
59 struct InputAssemblerState
60 {
61 enum InputSemantic {
62 PositionSemantic, // attr_pos
63 NormalSemantic, // attr_norm
64 TexCoord0Semantic, // attr_uv0
65 TexCoord1Semantic, // attr_uv1
66 TangentSemantic, // attr_textan
67 BinormalSemantic, // attr_binormal
68 ColorSemantic, // attr_color
69 MaxTargetSemantic = ColorSemantic,
70 JointSemantic, // attr_joints
71 WeightSemantic, // attr_weights
72 TexCoordLightmapSemantic // attr_lightmapuv
73 };
74
75 QRhiVertexInputLayout inputLayout;
76 QVarLengthArray<InputSemantic, 8> inputs;
77 QRhiGraphicsPipeline::Topology topology;
78 std::array<quint8, MaxTargetSemantic + 1> targetOffsets = { UINT8_MAX, UINT8_MAX, UINT8_MAX, UINT8_MAX,
79 UINT8_MAX, UINT8_MAX, UINT8_MAX };
80 quint8 targetCount = 0;
81 } ia;
82
83 // for internal use
84 const QSSGRhiShaderPipeline *shaderPipeline = nullptr;
85};
86
87struct QSSGRhiSamplerDescription
88{
89 QRhiSampler::Filter minFilter;
90 QRhiSampler::Filter magFilter;
91 QRhiSampler::Filter mipmap;
92 QRhiSampler::AddressMode hTiling;
93 QRhiSampler::AddressMode vTiling;
94 QRhiSampler::AddressMode zTiling;
95};
96
97class Q_QUICK3DRUNTIMERENDER_EXPORT QSSGRhiContext
98{
99 Q_DISABLE_COPY(QSSGRhiContext)
100public:
101 explicit QSSGRhiContext(QRhi *rhi);
102 ~QSSGRhiContext();
103
104 QRhi *rhi() const;
105 bool isValid() const;
106
107 QRhiRenderPassDescriptor *mainRenderPassDescriptor() const;
108 QRhiCommandBuffer *commandBuffer() const;
109 QRhiRenderTarget *renderTarget() const;
110 int mainPassSampleCount() const;
111 int mainPassViewCount() const;
112
113 QRhiSampler *sampler(const QSSGRhiSamplerDescription &samplerDescription);
114 void checkAndAdjustForNPoT(QRhiTexture *texture, QSSGRhiSamplerDescription *samplerDescription);
115 QRhiTexture *dummyTexture(QRhiTexture::Flags flags, QRhiResourceUpdateBatch *rub,
116 const QSize &size = QSize(64, 64), const QColor &fillColor = Qt::black,
117 int arraySize = 0);
118
119 QRhiCommandBuffer::BeginPassFlags commonPassFlags() const;
120
121private:
122 Q_DECLARE_PRIVATE(QSSGRhiContext)
123 std::unique_ptr<QSSGRhiContextPrivate> d_ptr;
124};
125
126QT_END_NAMESPACE
127
128#endif
129

source code of qtquick3d/src/runtimerender/qssgrhicontext.h