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// Copyright (C) 2020 Klaralvdalens Datakonsult AB (KDAB).
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QT3DRENDER_RENDER_RHI_RHIGRAPHICSPIPELINE_H
#define QT3DRENDER_RENDER_RHI_RHIGRAPHICSPIPELINE_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 <rhi/qrhi.h>
#include <rhihandle_types_p.h>
#include <pipelineuboset_p.h>
#include <Qt3DCore/qnodeid.h>
#include <Qt3DRender/private/handle_types_p.h>
#include <Qt3DRender/qgeometryrenderer.h>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
namespace Render {
namespace Rhi {
class RHIBuffer;
// Geometry | Shader | RenderStateMask
struct GraphicsPipelineIdentifier
{
int geometryLayoutKey;
Qt3DCore::QNodeId shader;
Qt3DCore::QNodeId renderTarget;
Qt3DRender::QGeometryRenderer::PrimitiveType primitiveType;
int renderStatesKey = 0;
};
struct ComputePipelineIdentifier
{
Qt3DCore::QNodeId shader;
int renderViewIndex;
};
template<typename Pipeline, typename Key>
class RHIPipelineBase
{
public:
virtual ~RHIPipelineBase() {}
PipelineUBOSet* uboSet() { return &m_uboSet; }
Pipeline *pipeline() const { return m_pipeline; }
void setPipeline(Pipeline *pipeline) { m_pipeline = pipeline; }
void setKey(const Key &key) { m_key = key; }
Key key() const { return m_key; }
void setShaderResourceBindings(QRhiShaderResourceBindings *shaderResourceBindings) { m_shaderResourceBindings = shaderResourceBindings; }
QRhiShaderResourceBindings *shaderResourceBindings() const { return m_shaderResourceBindings; }
int score() const { return m_score; }
void increaseScore() { m_score += 2; }
void decreaseScore() { --m_score; }
bool isComplete() { return m_complete; }
void markComplete() { m_complete = true; }
virtual void cleanup()
{
delete m_shaderResourceBindings;
delete m_pipeline;
m_pipeline = nullptr;
m_shaderResourceBindings = nullptr;
m_uboSet.releaseResources();
m_uboSet.clear();
m_key = {};
m_score = 5;
}
protected:
RHIPipelineBase() {}
Pipeline *m_pipeline = nullptr;
QRhiShaderResourceBindings *m_shaderResourceBindings = nullptr;
// For user defined uniforms
PipelineUBOSet m_uboSet;
Key m_key = {};
int m_score = 5;
int m_complete = false;
};
class RHIGraphicsPipeline : public RHIPipelineBase<QRhiGraphicsPipeline, GraphicsPipelineIdentifier>
{
public:
void setAttributesToBindingHash(const QHash<int, int> &attributeNameToBinding)
{
m_attributeNameIdToBindingIndex = attributeNameToBinding;
}
int bindingIndexForAttribute(int attributeNameId) const
{
return m_attributeNameIdToBindingIndex.value(attributeNameId, -1);
}
virtual void cleanup() override
{
RHIPipelineBase<QRhiGraphicsPipeline, GraphicsPipelineIdentifier>::cleanup();
m_attributeNameIdToBindingIndex.clear();
}
private:
// For user defined uniforms
QHash<int, int> m_attributeNameIdToBindingIndex;
};
class RHIComputePipeline : public RHIPipelineBase<QRhiComputePipeline, ComputePipelineIdentifier>
{
};
} // Rhi
} // Render
} // Qt3DRender
QT_END_NAMESPACE
#endif // QT3DRENDER_RENDER_RHI_RHIGRAPHICSPIPELINE_H
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