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69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
#pragma once
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#include "drape_frontend/render_state_extension.hpp"
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#include "shaders/program_manager.hpp"
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#include "drape/graphics_context.hpp"
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#include "drape/vertex_array_buffer.hpp"
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#include "drape/pointers.hpp"
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#include "geometry/point2d.hpp"
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namespace df
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{
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class RenderNode
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{
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public:
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RenderNode(dp::RenderState const & state, drape_ptr<dp::VertexArrayBuffer> && buffer)
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: m_state(state)
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, m_buffer(std::move(buffer))
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{}
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template <typename ParamsType>
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void Render(ref_ptr<dp::GraphicsContext> context, ref_ptr<gpu::ProgramManager> mng,
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ParamsType const & params, dp::IndicesRange const & range)
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{
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Apply(context, mng, params);
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m_buffer->RenderRange(context, m_state.GetDrawAsLine(), range);
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}
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template <typename ParamsType>
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void Render(ref_ptr<dp::GraphicsContext> context, ref_ptr<gpu::ProgramManager> mng,
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ParamsType const & params)
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{
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Apply(context, mng, params);
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m_buffer->Render(context, m_state.GetDrawAsLine());
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}
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void SetPivot(m2::PointD const & pivot) { m_pivot = pivot; }
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m2::PointD const & GetPivot() const { return m_pivot; }
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void SetBoundingBox(m2::RectD const & bbox) { m_boundingBox = bbox; }
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m2::RectD const & GetBoundingBox() const { return m_boundingBox; }
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private:
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template <typename ParamsType>
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void Apply(ref_ptr<dp::GraphicsContext> context, ref_ptr<gpu::ProgramManager> mng,
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ParamsType const & params)
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{
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auto prg = mng->GetProgram(m_state.GetProgram<gpu::Program>());
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prg->Bind();
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if (!m_isBuilt)
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{
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m_buffer->Build(context, prg);
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m_isBuilt = true;
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}
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dp::ApplyState(context, prg, m_state);
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mng->GetParamsSetter()->Apply(context, prg, params);
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}
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dp::RenderState m_state;
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drape_ptr<dp::VertexArrayBuffer> m_buffer;
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bool m_isBuilt = false;
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m2::PointD m_pivot;
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m2::RectD m_boundingBox;
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};
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} // namespace df
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