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/****************************************************************************
**
** Copyright (C) 2020 Klaralvdalens Datakonsult AB (KDAB).
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QT3DRENDER_RENDER_RHI_PIPELINEUBOSET_H
#define QT3DRENDER_RENDER_RHI_PIPELINEUBOSET_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 <rhihandle_types_p.h>
#include <private/qrhi_p.h>
#include <shadervariables_p.h>
#include <rhishader_p.h>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
namespace Render {
class ShaderData;
class NodeManagers;
namespace Rhi {
class RHIShader;
class RHIBuffer;
class RenderCommand;
class SubmissionContext;
class RenderView;
class RHIResourceManagers;
class PipelineUBOSet
{
public:
struct UBOBufferWithBindingAndBlockSize
{
int binding = -1;
int blockSize = -1;
size_t alignedBlockSize = 0;
HRHIBuffer buffer;
};
struct MultiUBOBufferWithBindingAndBlockSize
{
int binding = -1;
int blockSize = -1;
size_t alignedBlockSize = 0;
size_t alignment = 0;
size_t commandsPerUBO = 0;
std::vector<HRHIBuffer> buffers;
HRHIBuffer bufferForCommand(size_t distanceToCommand) const;
size_t localOffsetInBufferForCommand(size_t distanceToCommand) const;
};
PipelineUBOSet();
~PipelineUBOSet();
void clear();
void addRenderCommand(const RenderCommand &cmd);
size_t distanceToCommand(const RenderCommand &command) const;
std::vector<QRhiCommandBuffer::DynamicOffset> offsets(const RenderCommand &command) const;
std::vector<QRhiShaderResourceBinding> resourceLayout(const RHIShader *shader);
std::vector<QRhiShaderResourceBinding> resourceBindings(const RenderCommand &command);
bool allocateUBOs(SubmissionContext *ctx);
void uploadUBOs(SubmissionContext *ctx, RenderView *rv);
void setResourceManager(RHIResourceManagers *managers);
void setNodeManagers(NodeManagers *manager);
void initializeLayout(SubmissionContext *ctx, RHIShader *shader);
private:
void releaseResources();
void uploadUBOsForCommand(const RenderCommand &command,
size_t distanceToCommand);
void uploadShaderDataProperty(const ShaderData *shaderData,
const PipelineUBOSet::MultiUBOBufferWithBindingAndBlockSize *ubo,
const RHIShader::UBO_Member &uboMemberInstance,
size_t distanceToCommand, int arrayOffset = 0);
UBOBufferWithBindingAndBlockSize m_rvUBO; // Fixed size
MultiUBOBufferWithBindingAndBlockSize m_commandsUBO; // Variable size
std::vector<MultiUBOBufferWithBindingAndBlockSize> m_materialsUBOs; // Variable size
std::vector<ShaderStorageBlock> m_storageBlocks; // Fixed size
// TO DO: We also need to handle cases where UBO was directly provided by the frontend
// API and is not built up from Parameters
std::vector<const RenderCommand *> m_renderCommands;
RHIResourceManagers *m_resourceManagers = nullptr;
NodeManagers *m_nodeManagers = nullptr;
template<typename Pipeline, typename Key>
friend class RHIPipelineBase;
};
} // Rhi
} // Render
} // Qt3DRender
QT_END_NAMESPACE
#endif // QT3DRENDER_RENDER_RHI_PIPELINEUBOSET_H
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