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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_SHADERPARAMETERPACK_P_H
#define QT3DRENDER_RENDER_RHI_SHADERPARAMETERPACK_P_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 <QVariant>
#include <QByteArray>
#include <QVector>
#include <QOpenGLShaderProgram>
#include <Qt3DCore/qnodeid.h>
#include <Qt3DRender/private/renderlogging_p.h>
#include <Qt3DRender/private/uniform_p.h>
#include <shadervariables_p.h>
QT_BEGIN_NAMESPACE
class QOpenGLShaderProgram;
namespace Qt3DCore {
class QFrameAllocator;
}
namespace Qt3DRender {
namespace Render {
namespace Rhi {
class GraphicsContext;
struct BlockToUBO {
int m_blockIndex;
Qt3DCore::QNodeId m_bufferID;
bool m_needsUpdate;
QHash<QString, QVariant> m_updatedProperties;
};
QT3D_DECLARE_TYPEINFO_3(Qt3DRender, Render, Rhi, BlockToUBO, Q_MOVABLE_TYPE)
struct BlockToSSBO {
int m_blockIndex;
int m_bindingIndex;
Qt3DCore::QNodeId m_bufferID;
};
QT3D_DECLARE_TYPEINFO_3(Qt3DRender, Render, Rhi, BlockToSSBO, Q_PRIMITIVE_TYPE)
struct PackUniformHash
{
QVector<int> keys;
QVector<UniformValue> values;
PackUniformHash()
{
keys.reserve(10);
values.reserve(10);
}
void insert(int key, const UniformValue &value)
{
const int idx = keys.indexOf(key);
if (idx != -1) {
values[idx] = value;
} else {
keys.push_back(key);
values.push_back(value);
}
}
UniformValue value(int key) const
{
const int idx = keys.indexOf(key);
if (idx != -1)
return values.at(idx);
return UniformValue();
}
UniformValue& value(int key)
{
const int idx = keys.indexOf(key);
if (idx != -1)
return values[idx];
insert(key, UniformValue());
return value(key);
}
void erase(int idx)
{
keys.removeAt(idx);
values.removeAt(idx);
}
bool contains(int key) const
{
return keys.contains(key);
}
};
class Q_AUTOTEST_EXPORT ShaderParameterPack
{
public:
~ShaderParameterPack();
void setUniform(const int glslNameId, const UniformValue &val);
void setTexture(const int glslNameId, int uniformArrayIndex, Qt3DCore::QNodeId id);
void setImage(const int glslNameId, int uniformArrayIndex, Qt3DCore::QNodeId id);
void setUniformBuffer(BlockToUBO blockToUBO);
void setShaderStorageBuffer(BlockToSSBO blockToSSBO);
void setSubmissionUniform(const ShaderUniform &uniform);
inline PackUniformHash &uniforms() { return m_uniforms; }
inline const PackUniformHash &uniforms() const { return m_uniforms; }
UniformValue uniform(const int glslNameId) const { return m_uniforms.value(glslNameId); }
struct NamedResource
{
enum Type {
Texture = 0,
Image
};
NamedResource() {}
NamedResource(const int glslNameId, Qt3DCore::QNodeId texId,
int uniformArrayIndex, Type type)
: glslNameId(glslNameId)
, nodeId(texId)
, uniformArrayIndex(uniformArrayIndex)
, type(type)
{ }
int glslNameId;
Qt3DCore::QNodeId nodeId;
int uniformArrayIndex;
Type type;
bool operator==(const NamedResource &other) const
{
return glslNameId == other.glslNameId &&
nodeId == other.nodeId &&
uniformArrayIndex == other.uniformArrayIndex &&
type == other.type;
}
bool operator!=(const NamedResource &other) const
{
return !(*this == other);
}
};
inline QVector<NamedResource> textures() const { return m_textures; }
inline QVector<NamedResource> images() const { return m_images; }
inline QVector<BlockToUBO> uniformBuffers() const { return m_uniformBuffers; }
inline QVector<BlockToSSBO> shaderStorageBuffers() const { return m_shaderStorageBuffers; }
inline QVector<ShaderUniform> submissionUniforms() const { return m_submissionUniforms; }
private:
PackUniformHash m_uniforms;
QVector<NamedResource> m_textures;
QVector<NamedResource> m_images;
QVector<BlockToUBO> m_uniformBuffers;
QVector<BlockToSSBO> m_shaderStorageBuffers;
QVector<ShaderUniform> m_submissionUniforms;
friend class RenderView;
};
QT3D_DECLARE_TYPEINFO_3(Qt3DRender, Render, Rhi, ShaderParameterPack::NamedResource, Q_PRIMITIVE_TYPE)
} // namespace Rhi
} // namespace Render
} // namespace Qt3DRender
QT_END_NAMESPACE
Q_DECLARE_METATYPE(Qt3DRender::Render::Rhi::ShaderParameterPack)
#endif // QT3DRENDER_RENDER_RHI_SHADERPARAMETERPACK_P_H
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