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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 QSGMATERIALSHADER_P_H
#define QSGMATERIALSHADER_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/qtquickglobal_p.h>
#include "qsgmaterialshader.h"
#include "qsgmaterial.h"
#include <rhi/qrhi.h>
#include <rhi/qshader.h>
QT_BEGIN_NAMESPACE
class QRhiSampler;
class Q_QUICK_EXPORT QSGMaterialShaderPrivate
{
public:
Q_DECLARE_PUBLIC(QSGMaterialShader)
QSGMaterialShaderPrivate(QSGMaterialShader *q) : q_ptr(q) { }
static QSGMaterialShaderPrivate *get(QSGMaterialShader *s) { return s->d_func(); }
static const QSGMaterialShaderPrivate *get(const QSGMaterialShader *s) { return s->d_func(); }
void clearCachedRendererData();
void prepare(QShader::Variant vertexShaderVariant);
QShader shader(QShader::Stage stage) const { return shaders[stage].shader; }
static QShader loadShader(const QString &filename);
QSGMaterialShader *q_ptr;
QHash<QShader::Stage, QString> shaderFileNames;
QSGMaterialShader::Flags flags;
struct ShaderStageData {
ShaderStageData() { } // so shader.isValid() == false
ShaderStageData(const QShader &shader) : shader(shader) { }
QShader shader;
QShader::Variant shaderVariant = QShader::StandardShader;
QVector<int> vertexInputLocations; // excluding rewriter-inserted ones
int qt_order_attrib_location = -1; // rewriter-inserted
};
QHash<QShader::Stage, ShaderStageData> shaders;
static const int MAX_SHADER_RESOURCE_BINDINGS = 32;
int ubufBinding = -1;
int ubufSize = 0;
QRhiShaderResourceBinding::StageFlags ubufStages;
QRhiShaderResourceBinding::StageFlags combinedImageSamplerBindings[MAX_SHADER_RESOURCE_BINDINGS];
int combinedImageSamplerCount[MAX_SHADER_RESOURCE_BINDINGS];
ShaderStageData *vertexShader = nullptr;
ShaderStageData *fragmentShader = nullptr;
QByteArray masterUniformData;
QVarLengthArray<QSGTexture *, 4> textureBindingTable[MAX_SHADER_RESOURCE_BINDINGS];
QVarLengthArray<QRhiSampler *, 4> samplerBindingTable[MAX_SHADER_RESOURCE_BINDINGS];
};
Q_DECLARE_TYPEINFO(QSGMaterialShaderPrivate::ShaderStageData, Q_RELOCATABLE_TYPE);
QT_END_NAMESPACE
#endif
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