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// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QSGRHISHADEREFFECTNODE_P_H
#define QSGRHISHADEREFFECTNODE_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <private/qsgadaptationlayer_p.h>
#include <qsgmaterial.h>
#include <QUrl>
QT_BEGIN_NAMESPACE
class QSGDefaultRenderContext;
class QSGPlainTexture;
class QSGRhiShaderEffectNode;
class QFileSelector;
class QSGRhiShaderLinker
{
public:
void reset(const QShader &vs, const QShader &fs);
void feedConstants(const QSGShaderEffectNode::ShaderData &shader, const QSet<int> *dirtyIndices = nullptr);
void feedSamplers(const QSGShaderEffectNode::ShaderData &shader, const QSet<int> *dirtyIndices = nullptr);
void linkTextureSubRects();
void dump();
struct Constant {
uint size;
QSGShaderEffectNode::VariableData::SpecialType specialType;
QVariant value;
bool operator==(const Constant &other) const {
return size == other.size && specialType == other.specialType
&& (specialType == QSGShaderEffectNode::VariableData::None ? value == other.value : true);
}
};
bool m_error;
QShader m_vs;
QShader m_fs;
uint m_constantBufferSize;
QHash<uint, Constant> m_constants; // offset -> Constant
QHash<int, QVariant> m_samplers; // binding -> value (source ref)
QHash<QByteArray, int> m_samplerNameMap; // name -> binding
QSet<int> m_subRectBindings;
};
QDebug operator<<(QDebug debug, const QSGRhiShaderLinker::Constant &c);
class QSGRhiShaderEffectMaterial : public QSGMaterial
{
public:
QSGRhiShaderEffectMaterial(QSGRhiShaderEffectNode *node);
~QSGRhiShaderEffectMaterial();
int compare(const QSGMaterial *other) const override;
QSGMaterialType *type() const override;
QSGMaterialShader *createShader(QSGRendererInterface::RenderMode renderMode) const override;
void updateTextureProviders(bool layoutChange);
bool usesSubRectUniform(int binding) const { return m_linker.m_subRectBindings.contains(binding); }
static const int MAX_BINDINGS = 32;
QSGRhiShaderEffectNode *m_node;
QSGMaterialType *m_materialType = nullptr;
void *m_materialTypeCacheKey = nullptr;
QSGRhiShaderLinker m_linker;
QVector<QSGTextureProvider *> m_textureProviders; // [binding] = QSGTextureProvider
bool m_geometryUsesTextureSubRect = false;
QSGShaderEffectNode::CullMode m_cullMode = QSGShaderEffectNode::NoCulling;
bool m_hasCustomVertexShader = false;
bool m_hasCustomFragmentShader = false;
QShader m_vertexShader;
QShader m_fragmentShader;
QSGPlainTexture *m_dummyTexture = nullptr;
};
class QSGRhiShaderEffectNode : public QSGShaderEffectNode
{
Q_OBJECT
public:
QSGRhiShaderEffectNode(QSGDefaultRenderContext *rc);
QRectF updateNormalizedTextureSubRect(bool supportsAtlasTextures) override;
void syncMaterial(SyncData *syncData) override;
void preprocess() override;
static void resetMaterialTypeCache(void *materialTypeCacheKey);
static void garbageCollectMaterialTypeCache(void *materialTypeCacheKey);
private Q_SLOTS:
void handleTextureChange();
void handleTextureProviderDestroyed(QObject *object);
private:
QSGRhiShaderEffectMaterial m_material;
};
class QSGRhiGuiThreadShaderEffectManager : public QSGGuiThreadShaderEffectManager
{
public:
bool hasSeparateSamplerAndTextureObjects() const override;
QString log() const override;
Status status() const override;
void prepareShaderCode(ShaderInfo::Type typeHint, const QUrl &src, ShaderInfo *result) override;
private:
bool reflect(ShaderInfo *result);
Status m_status = Uncompiled;
QFileSelector *m_fileSelector = nullptr;
};
QT_END_NAMESPACE
#endif // QSGRHISHADEREFFECTNODE_P_H
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