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Diffstat (limited to 'src/runtimerender/Qt3DSRenderGraphObjectPickQuery.h')
-rw-r--r-- | src/runtimerender/Qt3DSRenderGraphObjectPickQuery.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/src/runtimerender/Qt3DSRenderGraphObjectPickQuery.h b/src/runtimerender/Qt3DSRenderGraphObjectPickQuery.h new file mode 100644 index 0000000..e63cad3 --- /dev/null +++ b/src/runtimerender/Qt3DSRenderGraphObjectPickQuery.h @@ -0,0 +1,124 @@ +/**************************************************************************** +** +** 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#pragma once +#ifndef QT3DS_RENDER_GRAPH_OBJECT_PICK_QUERY_H +#define QT3DS_RENDER_GRAPH_OBJECT_PICK_QUERY_H + +#include "Qt3DSRender.h" +#include "foundation/Qt3DSVec2.h" +#include "foundation/Qt3DSDataRef.h" +#include "foundation/Qt3DSMat44.h" +#include "Qt3DSRenderImage.h" + +namespace qt3ds { +namespace render { + + class IOffscreenRenderer; + + struct Qt3DSRenderPickSubResult + { + IOffscreenRenderer *m_SubRenderer; + QT3DSMat44 m_TextureMatrix; + NVRenderTextureCoordOp::Enum m_HorizontalTilingMode; + NVRenderTextureCoordOp::Enum m_VerticalTilingMode; + QT3DSU32 m_ViewportWidth; + QT3DSU32 m_ViewportHeight; + Qt3DSRenderPickSubResult *m_NextSibling; + + Qt3DSRenderPickSubResult() + : m_SubRenderer(NULL) + , m_NextSibling(NULL) + { + } + Qt3DSRenderPickSubResult(IOffscreenRenderer &inSubRenderer, QT3DSMat44 inTextureMatrix, + NVRenderTextureCoordOp::Enum inHorizontalTilingMode, + NVRenderTextureCoordOp::Enum inVerticalTilingMode, QT3DSU32 width, + QT3DSU32 height) + : m_SubRenderer(&inSubRenderer) + , m_TextureMatrix(inTextureMatrix) + , m_HorizontalTilingMode(inHorizontalTilingMode) + , m_VerticalTilingMode(inVerticalTilingMode) + , m_ViewportWidth(width) + , m_ViewportHeight(height) + , m_NextSibling(NULL) + { + } + }; + + struct Qt3DSRenderPickResult + { + const SGraphObject *m_HitObject; + QT3DSF32 m_CameraDistanceSq; + // The local coordinates in X,Y UV space where the hit occured + QT3DSVec2 m_LocalUVCoords; + // The local mouse coordinates will be the same on all of the sub objects. + Qt3DSRenderPickSubResult *m_FirstSubObject; + // The offscreen renderer that was used to render the scene graph this result was produced + // from. + IOffscreenRenderer *m_OffscreenRenderer; + + Qt3DSRenderPickResult(const SGraphObject &inHitObject, QT3DSF32 inCameraDistance, + const QT3DSVec2 &inLocalUVCoords) + : m_HitObject(&inHitObject) + , m_CameraDistanceSq(inCameraDistance) + , m_LocalUVCoords(inLocalUVCoords) + , m_FirstSubObject(NULL) + , m_OffscreenRenderer(NULL) + { + } + Qt3DSRenderPickResult() + : m_HitObject(NULL) + , m_CameraDistanceSq(QT3DS_MAX_F32) + , m_LocalUVCoords(0, 0) + , m_FirstSubObject(NULL) + , m_OffscreenRenderer(NULL) + { + } + }; + + class IGraphObjectPickQuery + { + protected: + virtual ~IGraphObjectPickQuery() {} + + public: + // Implementors have the option of batching the results to allow fewer virtual calls + // or returning one item each pick. + // Results are guaranteed to be returned nearest to furthest + // If the return value has size of zero then we assume nothing more can be picked and the + // pick + // is finished. + virtual Qt3DSRenderPickResult Pick(const QT3DSVec2 &inMouseCoords, + const QT3DSVec2 &inViewportDimensions, + bool inPickEverything) = 0; + }; +} +} +#endif |