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| ** |
| ** Copyright (C) 2008-2012 NVIDIA Corporation. |
| ** Copyright (C) 2019 The Qt Company Ltd. |
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| ** |
| ** This file is part of Qt Quick 3D. |
| ** |
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| ****************************************************************************/ |
| |
| #include <QtQuick3DRender/private/qssgrenderstoragebuffer_p.h> |
| #include <QtQuick3DRender/private/qssgrendercontext_p.h> |
| #include <QtQuick3DRender/private/qssgrendershaderprogram_p.h> |
| #include <QtQuick3DUtils/private/qssgutils_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| QSSGRenderStorageBuffer::QSSGRenderStorageBuffer(const QSSGRef<QSSGRenderContext> &context, |
| const QByteArray &bufferName, |
| QSSGRenderBufferUsageType usageType, |
| QSSGByteView data, |
| QSSGRenderDataBuffer *pBuffer) |
| : QSSGRenderDataBuffer(context, QSSGRenderBufferType::Storage, usageType, data) |
| , m_name(bufferName) |
| , m_wrappedBuffer(pBuffer) |
| , m_dirty(true) |
| { |
| Q_ASSERT(context->supportsStorageBuffer()); |
| context->registerStorageBuffer(this); |
| } |
| |
| QSSGRenderStorageBuffer::~QSSGRenderStorageBuffer() |
| { |
| |
| m_context->bufferDestroyed(this); |
| } |
| |
| void QSSGRenderStorageBuffer::bind() |
| { |
| if (m_mapped) { |
| qCCritical(RENDER_INVALID_OPERATION, "Attempting to Bind a locked buffer"); |
| Q_ASSERT(false); |
| } |
| |
| if (m_wrappedBuffer) |
| m_wrappedBuffer->bind(); |
| else |
| m_backend->bindBuffer(m_handle, m_type); |
| } |
| |
| void QSSGRenderStorageBuffer::bindToShaderProgram(quint32 index) |
| { |
| m_backend->programSetStorageBuffer(index, (m_wrappedBuffer) ? m_wrappedBuffer->handle() : m_handle); |
| } |
| |
| void QSSGRenderStorageBuffer::update() |
| { |
| // we only update the buffer if it is dirty and we actually have some data |
| if (m_dirty && m_bufferData.size()) { |
| m_backend->updateBuffer(m_handle, m_type, m_usageType, m_bufferData); |
| m_dirty = false; |
| } |
| } |
| |
| void QSSGRenderStorageBuffer::updateData(qint32 offset, QSSGByteView data) |
| { |
| // we only update the buffer if it is not just a wrapper |
| if (!m_wrappedBuffer) |
| m_backend->updateBufferRange(m_handle, m_type, offset, data); |
| } |
| |
| QT_END_NAMESPACE |