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39 
40 #ifndef QSGD3D12MATERIAL_P_H
41 #define QSGD3D12MATERIAL_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 <QtQuick/qsgmaterial.h>
55 #include "qsgd3d12engine_p.h"
56 
57 QT_BEGIN_NAMESPACE
58 
59 class QSGRenderer;
60 
61 // The D3D renderer works with QSGD3D12Material as the "base" class since
62 // QSGMaterial and its GL program related bits are not suitable. Also, there is
63 // no split like with QSGMaterialShader.
64 
65 typedef QSGMaterialShader::RenderState QSGD3D12MaterialRenderState;
66 
67 class QSGD3D12Material : public QSGMaterial
68 {
69 public:
70     struct ExtraState {
71         QVector4D blendFactor;
72     };
73 
74     enum UpdateResult {
75         UpdatedShaders = 0x0001,
76         UpdatedConstantBuffer = 0x0002,
77         UpdatedBlendFactor = 0x0004
78     };
79     Q_DECLARE_FLAGS(UpdateResults, UpdateResult)
80 
81     virtual int constantBufferSize() const = 0;
82     virtual void preparePipeline(QSGD3D12PipelineState *pipelineState) = 0;
83     virtual UpdateResults updatePipeline(const QSGD3D12MaterialRenderState &state,
84                                          QSGD3D12PipelineState *pipelineState,
85                                          ExtraState *extraState,
86                                          quint8 *constantBuffer) = 0;
87 
88 private:
89     QSGMaterialShader *createShader() const override; // dummy, QSGMaterialShader is too GL dependent
90 };
91 
92 Q_DECLARE_OPERATORS_FOR_FLAGS(QSGD3D12Material::UpdateResults)
93 
94 QT_END_NAMESPACE
95 
96 #endif // QSGD3D12MATERIAL_P_H
97