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/****************************************************************************
**
** Copyright (C) 2020 Klaralvdalens Datakonsult AB (KDAB).
** Copyright (C) 2021 The Qt Company Ltd and/or its subsidiary(-ies).
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
****************************************************************************/
#ifndef QT3DRENDER_RENDER_RHI_RENDERCOMMAND_H
#define QT3DRENDER_RENDER_RHI_RENDERCOMMAND_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <qglobal.h>
#include <shaderparameterpack_p.h>
#include <rhihandle_types_p.h>
#include <renderviewjobutils_p.h>
#include <Qt3DRender/private/handle_types_p.h>
#include <Qt3DRender/qgeometryrenderer.h>
#include <QOpenGLShaderProgram>
#include <QOpenGLTexture>
#include <QMatrix4x4>
#include <QtGui/private/qrhi_p.h>
#include <Qt3DRender/qattribute.h>
QT_BEGIN_NAMESPACE
class QRhiGraphicsPipeline;
class QRhiShaderResourceBindings;
namespace Qt3DRender {
namespace Render {
class RenderStateSet;
using RenderStateSetPtr = QSharedPointer<RenderStateSet>;
namespace Rhi {
class RHIShader;
class RHIGraphicsPipeline;
struct CommandUBO
{
float modelMatrix[16];
float inverseModelMatrix[16];
float modelViewMatrix[16];
float modelNormalMatrix[12];
float inverseModelViewMatrix[16];
float mvp[16];
float inverseModelViewProjectionMatrix[16];
};
static_assert(sizeof(CommandUBO) == 6 * (16 * sizeof(float)) + 1 * (12 * sizeof(float)),
"UBO doesn't match std140");
class Q_AUTOTEST_EXPORT RenderCommand
{
public:
RenderCommand();
bool isValid() const noexcept;
HMaterial m_material; // Purely used to ease sorting (minimize stage changes, binding changes
// ....)
RHIShader *m_rhiShader; // GL Shader to be used at render time
Qt3DCore::QNodeId m_shaderId; // Shader for given pass and mesh
ShaderParameterPack m_parameterPack; // Might need to be reworked so as to be able to destroy
// the Texture while submission is happening.
RenderStateSetPtr m_stateSet;
HGeometry m_geometry;
HGeometryRenderer m_geometryRenderer;
HBuffer m_indirectDrawBuffer; // Reference to indirect draw buffer (valid only m_drawIndirect ==
// true)
HComputeCommand m_computeCommand;
// A QAttribute pack might be interesting
// This is a temporary fix in the meantime, to remove the hacked methods in Technique
QVector<int> m_activeAttributes;
float m_depth;
int m_changeCost;
enum CommandType { Draw, Compute };
CommandType m_type;
int m_workGroups[3];
// Values filled for draw calls by Renderer (in prepare Submission)
GLsizei m_primitiveCount;
QGeometryRenderer::PrimitiveType m_primitiveType;
int m_restartIndexValue;
int m_firstInstance;
int m_firstVertex;
int m_verticesPerPatch;
int m_instanceCount;
int m_indexOffset;
uint m_indexAttributeByteOffset;
Qt3DRender::QAttribute::VertexBaseType m_indexAttributeDataType;
uint m_indirectAttributeByteOffset;
bool m_drawIndexed;
bool m_drawIndirect;
bool m_primitiveRestartEnabled;
bool m_isValid;
QVarLengthArray<QRhiCommandBuffer::VertexInput, 8> vertex_input;
const Attribute *indexAttribute {};
QRhiBuffer *indexBuffer {};
CommandUBO m_commandUBO;
RHIGraphicsPipeline *pipeline {};
};
Q_AUTOTEST_EXPORT bool operator==(const RenderCommand &a, const RenderCommand &b) noexcept;
inline bool operator!=(const RenderCommand &lhs, const RenderCommand &rhs) noexcept
{
return !operator==(lhs, rhs);
}
struct EntityRenderCommandData
{
QVector<Entity *> entities;
QVector<RenderCommand> commands;
QVector<RenderPassParameterData> passesData;
void reserve(int size)
{
entities.reserve(size);
commands.reserve(size);
passesData.reserve(size);
}
inline int size() const { return entities.size(); }
inline void push_back(Entity *e, const RenderCommand &c, const RenderPassParameterData &p)
{
entities.push_back(e);
commands.push_back(c);
passesData.push_back(p);
}
inline void push_back(Entity *e, RenderCommand &&c, RenderPassParameterData &&p)
{
entities.push_back(e);
commands.push_back(std::move(c));
passesData.push_back(std::move(p));
}
EntityRenderCommandData &operator+=(EntityRenderCommandData &&t)
{
entities += std::move(t.entities);
commands += std::move(t.commands);
passesData += std::move(t.passesData);
return *this;
}
};
using EntityRenderCommandDataPtr = QSharedPointer<EntityRenderCommandData>;
} // namespace Rhi
} // namespace Render
} // namespace Qt3DRender
QT_END_NAMESPACE
#endif // QT3DRENDER_RENDER_RHI_RENDERCOMMAND_H
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