| 1 | /* |
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| 2 | * SPDX-FileCopyrightText: 2025 Arjen Hiemstra <ahiemstra@heimr.nl> |
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| 3 | * |
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| 4 | * SPDX-License-Identifier: LGPL-2.0-or-later |
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| 5 | */ |
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| 6 | |
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| 7 | #pragma once |
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| 8 | |
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| 9 | #include <QColor> |
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| 10 | #include <QSGMaterial> |
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| 11 | #include <QSGMaterialShader> |
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| 12 | #include <QSGTexture> |
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| 13 | |
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| 14 | #include "uniformdatastream.h" |
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| 15 | |
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| 16 | /** |
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| 17 | * A material rendering a rectangle with a shadow. |
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| 18 | * |
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| 19 | * This material uses a distance field shader to render a rectangle with a |
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| 20 | * shadow below it, optionally with rounded corners. |
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| 21 | */ |
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| 22 | class ShaderMaterial : public QSGMaterial |
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| 23 | { |
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| 24 | public: |
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| 25 | ShaderMaterial(const QString &name); |
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| 26 | ShaderMaterial(QSGMaterialType *type); |
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| 27 | |
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| 28 | QString name() const; |
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| 29 | |
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| 30 | QSGMaterialShader *createShader(QSGRendererInterface::RenderMode) const override; |
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| 31 | QSGMaterialType *type() const override; |
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| 32 | int compare(const QSGMaterial *other) const override; |
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| 33 | |
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| 34 | void setUniformBufferSize(qsizetype size); |
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| 35 | std::span<char> uniformData(); |
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| 36 | |
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| 37 | QSGTexture *texture(int binding); |
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| 38 | void setTexture(int binding, QSGTexture *texture); |
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| 39 | |
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| 40 | QSGTexture::Filtering textureFiltering(int binding) const; |
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| 41 | void setTextureFiltering(int binding, QSGTexture::Filtering filtering); |
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| 42 | |
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| 43 | static QString nameForType(QSGMaterialType *type); |
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| 44 | static QSGMaterialType *typeForName(const QString &name); |
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| 45 | |
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| 46 | private: |
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| 47 | QString m_name; |
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| 48 | QSGMaterialType *m_type; |
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| 49 | |
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| 50 | QByteArray m_uniformData; |
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| 51 | QHash<int, QSGTexture *> m_textures; |
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| 52 | |
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| 53 | inline static std::unordered_map<QString, std::unique_ptr<QSGMaterialType>> s_materialTypes; |
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| 54 | }; |
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| 55 | |
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| 56 | class ShaderMaterialShader : public QSGMaterialShader |
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| 57 | { |
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| 58 | public: |
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| 59 | ShaderMaterialShader(const QString &shaderName); |
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| 60 | |
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| 61 | bool updateUniformData(QSGMaterialShader::RenderState &state, QSGMaterial *newMaterial, QSGMaterial *oldMaterial) override; |
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| 62 | void updateSampledImage(QSGMaterialShader::RenderState &state, // |
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| 63 | int binding, |
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| 64 | QSGTexture **texture, |
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| 65 | QSGMaterial *newMaterial, |
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| 66 | QSGMaterial *oldMaterial) override; |
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| 67 | }; |
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| 68 | |
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