Repo created

libs/drape_frontend/screen_quad_renderer.hpp

@@ -0,0 +1,34 @@
+#pragma once
+
+#include "drape/mesh_object.hpp"
+
+#include "geometry/rect2d.hpp"
+
+namespace gpu
+{
+class ProgramManager;
+}  // namespace gpu
+
+namespace df
+{
+class ScreenQuadRenderer : public dp::MeshObject
+{
+  using Base = dp::MeshObject;
+
+public:
+  explicit ScreenQuadRenderer(ref_ptr<dp::GraphicsContext> context);
+
+  void SetTextureRect(ref_ptr<dp::GraphicsContext> context, m2::RectF const & rect);
+  m2::RectF const & GetTextureRect() const { return m_textureRect; }
+
+  // The parameter invertV is necessary, since there are some APIs (e.g. Metal) there render target
+  // coordinates system is inverted by V axis.
+  void RenderTexture(ref_ptr<dp::GraphicsContext> context, ref_ptr<gpu::ProgramManager> mng,
+                     ref_ptr<dp::Texture> texture, float opacity, bool invertV = true);
+
+private:
+  void Rebuild(ref_ptr<dp::GraphicsContext> context);
+
+  m2::RectF m_textureRect = m2::RectF(0.0f, 0.0f, 1.0f, 1.0f);
+};
+}  // namespace df