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o3de/Gems/Atom/RHI/Code/Source/RHI.Reflect/Viewport.cpp

77 lines
2.3 KiB
C++

/*
* Copyright (c) Contributors to the Open 3D Engine Project.
* For complete copyright and license terms please see the LICENSE at the root of this distribution.
*
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
*/
#include <Atom/RHI.Reflect/Viewport.h>
#include <AzCore/Serialization/SerializeContext.h>
namespace AZ
{
namespace RHI
{
void Viewport::Reflect(AZ::ReflectContext* context)
{
if (SerializeContext* serializeContext = azrtti_cast<SerializeContext*>(context))
{
serializeContext->Class<Viewport>()
->Version(1)
->Field("m_minX", &Viewport::m_minX)
->Field("m_maxX", &Viewport::m_maxX)
->Field("m_minY", &Viewport::m_minY)
->Field("m_maxY", &Viewport::m_maxY)
->Field("m_minZ", &Viewport::m_minZ)
->Field("m_maxZ", &Viewport::m_maxZ);
}
}
Viewport::Viewport(
float minX,
float maxX,
float minY,
float maxY,
float minZ,
float maxZ)
: m_minX(minX)
, m_maxX(maxX)
, m_minY(minY)
, m_maxY(maxY)
, m_minZ(minZ)
, m_maxZ(maxZ)
{}
Viewport Viewport::GetScaled(
float normalizedMinX,
float normalizedMaxX,
float normalizedMinY,
float normalizedMaxY,
float normalizedMinZ,
float normalizedMaxZ) const
{
Viewport viewport;
viewport.m_minX = Lerp(m_minX, m_maxX, normalizedMinX);
viewport.m_maxX = Lerp(m_minX, m_maxX, normalizedMaxX);
viewport.m_minY = Lerp(m_minY, m_maxY, normalizedMinY);
viewport.m_maxY = Lerp(m_minY, m_maxY, normalizedMaxY);
viewport.m_minZ = Lerp(m_minZ, m_maxZ, normalizedMinZ);
viewport.m_maxZ = Lerp(m_minZ, m_maxZ, normalizedMaxZ);
return viewport;
}
Viewport Viewport::CreateNull()
{
return Viewport{0.f, 0.f, 0.f, 0.f, 0.f, 0.f};
}
bool Viewport::IsNull() const
{
return ((m_minX >= m_maxX) ||
(m_minY >= m_maxY) ||
(m_minZ >= m_maxZ));
}
} // namespace RHI
} // namespace AZ