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- /*
- * Copyright 2019 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #ifndef SkShaperJSONWriter_DEFINED
- #define SkShaperJSONWriter_DEFINED
- #include <cstddef>
- #include <cstdint>
- #include <functional>
- #include <string>
- #include <vector>
- #include "modules/skshaper/include/SkShaper.h"
- #include "src/core/SkSpan.h"
- class SkJSONWriter;
- class SkShaperJSONWriter final : public SkShaper::RunHandler {
- public:
- SkShaperJSONWriter(SkJSONWriter* JSONWriter, const char* utf8, size_t size);
- void beginLine() override;
- void runInfo(const RunInfo& info) override;
- void commitRunInfo() override;
- Buffer runBuffer(const RunInfo& info) override;
- void commitRunBuffer(const RunInfo& info) override;
- void commitLine() override {}
- using BreakupCluastersCallback =
- std::function<void(size_t, size_t, uint32_t, uint32_t)>;
- // Break up cluster into a set of ranges for the UTF8, and the glyphIDs.
- static void BreakupClusters(size_t utf8Begin, size_t utf8End,
- SkSpan<const uint32_t> clusters,
- const BreakupCluastersCallback& processMToN);
- using VisualizeClustersCallback =
- std::function<void(size_t, SkSpan<const char>, SkSpan<const SkGlyphID>)>;
- // Gather runs of 1:1 into larger runs, and display M:N as single entries.
- static void VisualizeClusters(const char utf8[],
- size_t utf8Begin, size_t utf8End,
- SkSpan<const SkGlyphID> glyphIDs,
- SkSpan<const uint32_t> clusters,
- const VisualizeClustersCallback& processMToN);
- private:
- void displayMToN(size_t codePointCount,
- SkSpan<const char> utf8,
- SkSpan<const SkGlyphID> glyphIDs);
- SkJSONWriter* fJSONWriter;
- std::vector<SkGlyphID> fGlyphs;
- std::vector<SkPoint> fPositions;
- std::vector<uint32_t> fClusters;
- std::string fUTF8;
- };
- #endif // SkShaperJSONWriter_DEFINED
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