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Diffstat (limited to 'src/render/Qt3DSRenderRenderBuffer.cpp')
-rw-r--r-- | src/render/Qt3DSRenderRenderBuffer.cpp | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/src/render/Qt3DSRenderRenderBuffer.cpp b/src/render/Qt3DSRenderRenderBuffer.cpp new file mode 100644 index 0000000..b682bc1 --- /dev/null +++ b/src/render/Qt3DSRenderRenderBuffer.cpp @@ -0,0 +1,114 @@ +/**************************************************************************** +** +** 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 "foundation/Qt3DSAllocator.h" +#include "foundation/Qt3DSFoundation.h" +#include "foundation/Qt3DSBroadcastingAllocator.h" +#include "foundation/Qt3DSAtomic.h" +#include "render/Qt3DSRenderRenderBuffer.h" +#include "render/Qt3DSRenderBaseTypes.h" +#include "render/Qt3DSRenderContext.h" +#include "foundation/Qt3DSFoundation.h" + +namespace qt3ds { +namespace render { + + NVRenderRenderBuffer::NVRenderRenderBuffer(NVRenderContextImpl &context, NVFoundationBase &fnd, + NVRenderRenderBufferFormats::Enum format, + QT3DSU32 width, QT3DSU32 height) + : m_Context(context) + , m_Foundation(fnd) + , mRefCount(0) + , m_Backend(context.GetBackend()) + , m_Width(width) + , m_Height(height) + , m_StorageFormat(format) + , m_BufferHandle(NULL) + { + SetDimensions(NVRenderRenderBufferDimensions(width, height)); + } + + NVRenderRenderBuffer::~NVRenderRenderBuffer() + { + m_Context.RenderBufferDestroyed(*this); + m_Backend->ReleaseRenderbuffer(m_BufferHandle); + m_BufferHandle = 0; + } + + void NVRenderRenderBuffer::SetDimensions(const NVRenderRenderBufferDimensions &inDimensions) + { + QT3DSU32 maxWidth, maxHeight; + m_Width = inDimensions.m_Width; + m_Height = inDimensions.m_Height; + + // get max size and clamp to max value + m_Context.getMaxTextureSize(maxWidth, maxHeight); + if (m_Width > maxWidth || m_Height > maxHeight) { + qCCritical(INVALID_OPERATION, "Width or height is greater than max texture size (%d, %d)", + maxWidth, maxHeight); + m_Width = NVMin(m_Width, maxWidth); + m_Height = NVMin(m_Height, maxHeight); + } + + bool success = true; + + if (m_BufferHandle == NULL) + m_BufferHandle = m_Backend->CreateRenderbuffer(m_StorageFormat, m_Width, m_Height); + else + success = + m_Backend->ResizeRenderbuffer(m_BufferHandle, m_StorageFormat, m_Width, m_Height); + + if (m_BufferHandle == NULL || !success) { + // We could try smaller sizes + QT3DS_ASSERT(false); + qCCritical(INTERNAL_ERROR, "Unable to create render buffer %s, %dx%d", + NVRenderRenderBufferFormats::toString(m_StorageFormat), m_Width, + m_Height); + } + } +} +} + +qt3ds::render::NVRenderRenderBuffer * +qt3ds::render::NVRenderRenderBuffer::Create(NVRenderContextImpl &context, + NVRenderRenderBufferFormats::Enum format, QT3DSU32 width, + QT3DSU32 height) +{ + NVRenderRenderBuffer *retval = NULL; + if (width == 0 || height == 0) { + qCCritical(INVALID_PARAMETER, "Invalid renderbuffer width or height"); + return retval; + } + + retval = QT3DS_NEW(context.GetFoundation().getAllocator(), + NVRenderRenderBuffer)(context, context.GetFoundation(), format, width, height); + + return retval; +} |