69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/.
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*/
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#include "ArBackgroundDrawable.hpp"
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#include "AR/ArSession.hpp"
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#include "AR/ArFrame.hpp"
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#include "Base/Logger.hpp"
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namespace OpenVulkano::Scene
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{
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namespace
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{
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const Math::CameraIntrinsicWithResolution FALLBACK_INTRINSICS;
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}
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ArBackgroundDrawable::ArBackgroundDrawable(const Ptr<AR::ArSession>& arSession)
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: Drawable(DrawEncoder::GetDrawEncoder<ArBackgroundDrawable>(), DrawPhase::BACKGROUND)
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{
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m_shader.topology = Topology::TRIANGLE_STRIP;
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m_shader.AddShaderProgram(ShaderProgramType::VERTEX, "Shader/background");
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m_shader.AddShaderProgram(ShaderProgramType::FRAGMENT, "Shader/background");
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m_shader.AddDescriptorSetLayoutBinding(UniformBuffer::DESCRIPTOR_SET_LAYOUT_BINDING);
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m_shader.AddDescriptorSetLayoutBinding(Texture::DESCRIPTOR_SET_LAYOUT_BINDING);
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m_shader.depthCompareOp = CompareOp::LESS_OR_EQUAL;
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SetShader(&m_shader);
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m_intrinsicsBuffer.Init(sizeof(Math::CameraIntrinsicWithResolution), &FALLBACK_INTRINSICS);
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m_intrinsicsBuffer.updateFrequency = UpdateFrequency::Always;
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Init(arSession);
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}
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void ArBackgroundDrawable::Init(const Ptr<AR::ArSession>& arSession)
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{
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if (m_eventHandle) Close();
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if (!arSession) return;
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m_eventHandle = { arSession, &AR::ArSession::OnNewFrame, EventHandler(this, &ArBackgroundDrawable::OnNewArFrame) };
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}
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void ArBackgroundDrawable::Close()
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{
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m_eventHandle.Close();
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m_lastFrame = m_nextFrame = nullptr;
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m_texture = nullptr;
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Drawable::Close();
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}
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void ArBackgroundDrawable::OnNewArFrame(const Ptr<AR::ArFrame>& frame)
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{
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m_nextFrame = frame;
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}
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void ArBackgroundDrawable::Tick()
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{
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m_lastFrame = nullptr;
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if (m_nextFrame)
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{
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m_lastFrame = std::move(m_currentFrame);
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m_currentFrame = std::move(m_nextFrame);
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m_nextFrame = nullptr;
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m_texture = m_currentFrame->GetImageTexture();
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m_intrinsicsBuffer.data = &m_currentFrame->GetFrameMetadata().intrinsic;
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m_intrinsicsBuffer.updated = true;
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}
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if (!m_texture) m_texture = &Texture::PLACEHOLDER;
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}
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}
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