diff options
Diffstat (limited to 'src/runtimerender/resourcemanager/Qt3DSRenderResourceTexture2D.cpp')
| -rw-r--r-- | src/runtimerender/resourcemanager/Qt3DSRenderResourceTexture2D.cpp | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/src/runtimerender/resourcemanager/Qt3DSRenderResourceTexture2D.cpp b/src/runtimerender/resourcemanager/Qt3DSRenderResourceTexture2D.cpp new file mode 100644 index 0000000..e877cbc --- /dev/null +++ b/src/runtimerender/resourcemanager/Qt3DSRenderResourceTexture2D.cpp @@ -0,0 +1,174 @@ +/**************************************************************************** +** +** Copyright (C) 2008-2012 NVIDIA Corporation. +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of Qt 3D Studio. +** +** $QT_BEGIN_LICENSE:GPL$ +** 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 General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 or (at your option) 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.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-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#include "Qt3DSRenderResourceTexture2D.h" + +using namespace qt3ds::render; + +CResourceTexture2D::CResourceTexture2D(IResourceManager &mgr, NVRenderTexture2D *inTexture) + : m_ResourceManager(mgr) + , m_Texture(inTexture) +{ + if (inTexture) + m_TextureDetails = inTexture->GetTextureDetails(); +} + +CResourceTexture2D::CResourceTexture2D(IResourceManager &mgr, QT3DSU32 width, QT3DSU32 height, + NVRenderTextureFormats::Enum inFormat, QT3DSU32 inSamples) + : m_ResourceManager(mgr) + , m_Texture(NULL) +{ + EnsureTexture(width, height, inFormat, inSamples); +} + +CResourceTexture2D::~CResourceTexture2D() +{ + ReleaseTexture(); +} + +// Returns true if the texture was allocated, false if nothing changed (no allocation). +bool CResourceTexture2D::TextureMatches(QT3DSU32 width, QT3DSU32 height, + NVRenderTextureFormats::Enum inFormat, QT3DSU32 inSamples) +{ + return m_Texture && m_TextureDetails.m_Width == width && m_TextureDetails.m_Height == height + && m_TextureDetails.m_Format == inFormat && m_TextureDetails.m_SampleCount == inSamples; +} + +bool CResourceTexture2D::EnsureTexture(QT3DSU32 width, QT3DSU32 height, + NVRenderTextureFormats::Enum inFormat, QT3DSU32 inSamples) +{ + if (TextureMatches(width, height, inFormat, inSamples)) + return false; + + if (m_Texture && inSamples > 1) { + // we cannot resize MSAA textures though release first + ReleaseTexture(); + } + + if (!m_Texture) + m_Texture = m_ResourceManager.AllocateTexture2D(width, height, inFormat, inSamples); + else { + // multisampled textures are immuteable + QT3DS_ASSERT(inSamples == 1); + m_Texture->SetTextureData(NVDataRef<QT3DSU8>(), 0, width, height, inFormat); + } + + m_TextureDetails = m_Texture->GetTextureDetails(); + return true; +} + +void CResourceTexture2D::ReleaseTexture() +{ + if (m_Texture) { + m_ResourceManager.Release(*m_Texture); + ForgetTexture(); + } +} + +void CResourceTexture2D::ForgetTexture() +{ + m_Texture = NULL; +} + +void CResourceTexture2D::StealTexture(CResourceTexture2D &inOther) +{ + ReleaseTexture(); + m_Texture = inOther.m_Texture; + m_TextureDetails = inOther.m_TextureDetails; + inOther.m_Texture = NULL; +} + +CResourceTexture2DArray::CResourceTexture2DArray(IResourceManager &mgr) + : m_ResourceManager(mgr) + , m_Texture(NULL) +{ +} + +CResourceTexture2DArray::CResourceTexture2DArray(IResourceManager &mgr, QT3DSU32 width, QT3DSU32 height, + QT3DSU32 slices, + NVRenderTextureFormats::Enum inFormat, + QT3DSU32 inSamples) + : m_ResourceManager(mgr) + , m_Texture(NULL) +{ + EnsureTexture(width, height, slices, inFormat, inSamples); +} + +CResourceTexture2DArray::~CResourceTexture2DArray() +{ + ReleaseTexture(); +} + +bool CResourceTexture2DArray::TextureMatches(QT3DSU32 width, QT3DSU32 height, QT3DSU32 slices, + NVRenderTextureFormats::Enum inFormat, QT3DSU32 inSamples) +{ + return m_Texture && m_TextureDetails.m_Depth == slices && m_TextureDetails.m_Width == width + && m_TextureDetails.m_Height == height && m_TextureDetails.m_Format == inFormat + && m_TextureDetails.m_SampleCount == inSamples; +} + +bool CResourceTexture2DArray::EnsureTexture(QT3DSU32 width, QT3DSU32 height, QT3DSU32 slices, + NVRenderTextureFormats::Enum inFormat, QT3DSU32 inSamples) +{ + if (TextureMatches(width, height, slices, inFormat, inSamples)) + return false; + + if (m_Texture && inSamples > 1) { + // we cannot resize MSAA textures though release first + ReleaseTexture(); + } + + if (!m_Texture) + m_Texture = + m_ResourceManager.AllocateTexture2DArray(width, height, slices, inFormat, inSamples); + else { + // multisampled textures are immuteable + QT3DS_ASSERT(inSamples == 1); + m_Texture->SetTextureData(NVDataRef<QT3DSU8>(), 0, width, height, slices, inFormat); + } + + m_TextureDetails = m_Texture->GetTextureDetails(); + return true; +} + +void CResourceTexture2DArray::ReleaseTexture() +{ + if (m_Texture) { + m_ResourceManager.Release(*m_Texture); + m_Texture = NULL; + } +} + +void CResourceTexture2DArray::StealTexture(CResourceTexture2DArray &inOther) +{ + ReleaseTexture(); + m_Texture = inOther.m_Texture; + m_TextureDetails = inOther.m_TextureDetails; + inOther.m_Texture = NULL; +} |