Organic Maps sources as of 02.04.2025 (fad26bbf22ac3da75e01e62aa01e5c8e11861005)

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drape_frontend/render_node.hpp

@@ -0,0 +1,68 @@
+#pragma once
+
+#include "drape_frontend/render_state_extension.hpp"
+
+#include "shaders/program_manager.hpp"
+
+#include "drape/graphics_context.hpp"
+#include "drape/vertex_array_buffer.hpp"
+#include "drape/pointers.hpp"
+
+#include "geometry/point2d.hpp"
+
+namespace df
+{
+class RenderNode
+{
+public:
+  RenderNode(dp::RenderState const & state, drape_ptr<dp::VertexArrayBuffer> && buffer)
+    : m_state(state)
+    , m_buffer(std::move(buffer))
+  {}
+
+  template <typename ParamsType>
+  void Render(ref_ptr<dp::GraphicsContext> context, ref_ptr<gpu::ProgramManager> mng,
+              ParamsType const & params, dp::IndicesRange const & range)
+  {
+    Apply(context, mng, params);
+    m_buffer->RenderRange(context, m_state.GetDrawAsLine(), range);
+  }
+
+  template <typename ParamsType>
+  void Render(ref_ptr<dp::GraphicsContext> context, ref_ptr<gpu::ProgramManager> mng,
+              ParamsType const & params)
+  {
+    Apply(context, mng, params);
+    m_buffer->Render(context, m_state.GetDrawAsLine());
+  }
+
+  void SetPivot(m2::PointD const & pivot) { m_pivot = pivot; }
+  m2::PointD const & GetPivot() const { return m_pivot; }
+
+  void SetBoundingBox(m2::RectD const & bbox) { m_boundingBox = bbox; }
+  m2::RectD const & GetBoundingBox() const { return m_boundingBox; }
+
+private:
+  template <typename ParamsType>
+  void Apply(ref_ptr<dp::GraphicsContext> context, ref_ptr<gpu::ProgramManager> mng,
+             ParamsType const & params)
+  {
+    auto prg = mng->GetProgram(m_state.GetProgram<gpu::Program>());
+    prg->Bind();
+    if (!m_isBuilt)
+    {
+      m_buffer->Build(context, prg);
+      m_isBuilt = true;
+    }
+
+    dp::ApplyState(context, prg, m_state);
+    mng->GetParamsSetter()->Apply(context, prg, params);
+  }
+
+  dp::RenderState m_state;
+  drape_ptr<dp::VertexArrayBuffer> m_buffer;
+  bool m_isBuilt = false;
+  m2::PointD m_pivot;
+  m2::RectD m_boundingBox;
+};
+}  // namespace df