Revision control
++ // Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB).
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++
++ #include "attachmentpack_p.h"
++ #include <Qt3DRender/private/rendertarget_p.h>
++ #include <Qt3DRender/private/rendertargetselectornode_p.h>
++
++ QT_BEGIN_NAMESPACE
++
++ #ifndef GL_BACK_LEFT
++ #define GL_BACK_LEFT 0x0402
++ #endif
++ #ifndef GL_BACK_RIGHT
++ #define GL_BACK_RIGHT 0x0403
++ #endif
++
++ namespace Qt3DRender {
++ namespace Render {
++
++ AttachmentPack::AttachmentPack()
++ {
++ }
++
++ AttachmentPack::AttachmentPack(const RenderTarget *target,
++ AttachmentManager *attachmentManager,
++ const QList<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.push_back(*output->attachment());
++ }
++
++ // Sort by attachment point
++ std::sort(m_attachments.begin(),
++ m_attachments.end(),
++ [] (const Attachment &a, const Attachment &b) {
++ return a.m_point < b.m_point;
++ });
++
++
++ // Create actual DrawBuffers list that is used for glDrawBuffers
++
++ // If nothing is specified, use all the attachments as draw buffers
++ if (drawBuffers.empty()) {
++ m_drawBuffers.reserve(m_attachments.size());
++ for (const Attachment &attachment : std::as_const(m_attachments)) {
++ if ((attachment.m_point >= QRenderTargetOutput::Color0 && attachment.m_point <= QRenderTargetOutput::Color15)
++ || attachment.m_point == QRenderTargetOutput::Left
++ || attachment.m_point == QRenderTargetOutput::Right)
++ m_drawBuffers.push_back(attachment.m_point);
++ }
++ } else {
++ m_drawBuffers.reserve(drawBuffers.size());
++ for (QRenderTargetOutput::AttachmentPoint drawBuffer : drawBuffers) {
++ if ((drawBuffer >= QRenderTargetOutput::Color0 && drawBuffer <= QRenderTargetOutput::Color15)
++ || drawBuffer == QRenderTargetOutput::Left
++ || drawBuffer == QRenderTargetOutput::Right)
++ m_drawBuffers.push_back(drawBuffer);
++ }
++ }
++ }
++
++ // return index of given attachment within actual draw buffers list
++ int AttachmentPack::getDrawBufferIndex(QRenderTargetOutput::AttachmentPoint attachmentPoint) const
++ {
++ for (size_t i = 0; i < m_drawBuffers.size(); i++)
++ if (m_drawBuffers.at(i) == attachmentPoint)
++ return int(i);
++ return -1;
++ }
++
++ bool operator ==(const Attachment &a, const Attachment &b)
++ {
++ return (a.m_name == b.m_name &&
++ a.m_mipLevel == b.m_mipLevel &&
++ a.m_layer == b.m_layer &&
++ a.m_textureUuid == b.m_textureUuid &&
++ a.m_point == b.m_point &&
++ a.m_face == b.m_face);
++ }
++
++ bool operator !=(const Attachment &a, const Attachment &b)
++ {
++ return !(a == b);
++ }
++
++ bool operator ==(const AttachmentPack &packA, const AttachmentPack &packB)
++ {
++ return (packA.attachments() == packB.attachments() &&
++ packA.getDrawBuffers() == packB.getDrawBuffers());
++ }
++
++ bool operator !=(const AttachmentPack &packA, const AttachmentPack &packB)
++ {
++ return !(packA == packB);
++ }
++
++ } // namespace Render
++ } // namespace Qt3DRender
++
++ QT_END_NAMESPACE