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| ** Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB). |
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| |
| #include "attachmentpack_p.h" |
| #include <Qt3DRender/private/rendertarget_p.h> |
| #include <Qt3DRender/private/rendertargetselectornode_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace Qt3DRender { |
| namespace Render { |
| |
| AttachmentPack::AttachmentPack() |
| { |
| } |
| |
| AttachmentPack::AttachmentPack(const RenderTarget *target, |
| AttachmentManager *attachmentManager, |
| const QVector<QRenderTargetOutput::AttachmentPoint> &drawBuffers) |
| { |
| // Copy attachments |
| const auto outputIds = target->renderOutputs(); |
| for (Qt3DCore::QNodeId outputId : outputIds) { |
| const RenderTargetOutput *output = attachmentManager->lookupResource(outputId); |
| if (output) |
| m_attachments.append(*output->attachment()); |
| } |
| |
| // Create actual DrawBuffers list that is used for glDrawBuffers |
| |
| // If nothing is specified, use all the attachments as draw buffers |
| if (drawBuffers.isEmpty()) { |
| m_drawBuffers.reserve(m_attachments.size()); |
| for (const Attachment &attachment : qAsConst(m_attachments)) |
| // only consider Color Attachments |
| if (attachment.m_point <= QRenderTargetOutput::Color15) |
| m_drawBuffers.push_back((int) attachment.m_point); |
| } else { |
| m_drawBuffers.reserve(drawBuffers.size()); |
| for (QRenderTargetOutput::AttachmentPoint drawBuffer : drawBuffers) |
| if (drawBuffer <= QRenderTargetOutput::Color15) |
| m_drawBuffers.push_back((int) drawBuffer); |
| } |
| } |
| |
| // return index of given attachment within actual draw buffers list |
| int AttachmentPack::getDrawBufferIndex(QRenderTargetOutput::AttachmentPoint attachmentPoint) const |
| { |
| for (int i = 0; i < m_drawBuffers.size(); i++) |
| if (m_drawBuffers.at(i) == (int)attachmentPoint) |
| return i; |
| return -1; |
| } |
| |
| } // namespace Render |
| } // namespace Qt3DRender |
| |
| QT_END_NAMESPACE |