Organic Maps sources as of 02.04.2025 (fad26bbf22ac3da75e01e62aa01e5c8e11861005)

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drape/glyph.hpp

@@ -0,0 +1,69 @@
+#pragma once
+
+#include "base/assert.hpp"
+#include "base/buffer_vector.hpp"
+#include "base/shared_buffer_manager.hpp"
+
+#include <tuple>  // std::tie
+
+namespace dp
+{
+struct GlyphImage
+{
+  ~GlyphImage()
+  {
+    ASSERT_NOT_EQUAL(m_data.use_count(), 1, ("Probably you forgot to call Destroy()"));
+  }
+
+  // TODO(AB): Get rid of manual call to Destroy.
+  void Destroy()
+  {
+    if (m_data != nullptr)
+    {
+      SharedBufferManager::instance().freeSharedBuffer(m_data->size(), m_data);
+      m_data = nullptr;
+    }
+  }
+
+  uint32_t m_width;
+  uint32_t m_height;
+
+  SharedBufferManager::shared_buffer_ptr_t m_data;
+};
+
+struct GlyphFontAndId
+{
+  int16_t m_fontIndex;
+  uint16_t m_glyphId;
+
+  // Required only for buffer_vector's internal T m_static[N];
+  GlyphFontAndId() = default;
+
+  constexpr GlyphFontAndId(int16_t fontIndex, uint16_t glyphId) : m_fontIndex(fontIndex), m_glyphId(glyphId) {}
+
+  bool operator==(GlyphFontAndId const & other) const
+  {
+    return m_fontIndex == other.m_fontIndex && m_glyphId == other.m_glyphId;
+  }
+
+  bool operator<(GlyphFontAndId const & other) const
+  {
+    return std::tie(m_fontIndex, m_glyphId) < std::tie (other.m_fontIndex, other.m_glyphId);
+  }
+};
+
+
+// 50 glyphs should fit most of the strings based on tests in Switzerland and China.
+using TGlyphs = buffer_vector<GlyphFontAndId, 50>;
+
+struct Glyph
+{
+  Glyph(GlyphImage && image, GlyphFontAndId key)
+  : m_image(image), m_key(key)
+  {}
+
+  GlyphImage m_image;
+  GlyphFontAndId m_key;
+};
+}  // namespace dp
+