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Wire up the Skia persistent GPU related artifacts cache. (flutter#6278)
Also teaches FML to create files and directories.
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,46 @@ | ||
| // Copyright 2018 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| #include "flutter/fml/base32.h" | ||
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| #include <limits> | ||
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| #include "flutter/fml/macros.h" | ||
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| namespace fml { | ||
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| static constexpr char kEncoding[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567"; | ||
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| std::pair<bool, std::string> Base32Encode(StringView input) { | ||
| if (input.empty()) { | ||
| return {true, ""}; | ||
| } | ||
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| if (input.size() > std::numeric_limits<size_t>::max() / 8) { | ||
| return {false, ""}; | ||
| } | ||
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| std::string output; | ||
| const size_t encoded_length = (input.size() * 8 + 4) / 5; | ||
| output.reserve(encoded_length); | ||
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| uint16_t bit_stream = (static_cast<uint8_t>(input[0]) << 8); | ||
| size_t next_byte_index = 1; | ||
| int free_bits = 8; | ||
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| while (free_bits < 16) { | ||
| output.push_back(kEncoding[(bit_stream & 0xf800) >> 11]); | ||
| bit_stream <<= 5; | ||
| free_bits += 5; | ||
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| if (free_bits >= 8 && next_byte_index < input.size()) { | ||
| free_bits -= 8; | ||
| bit_stream += static_cast<uint8_t>(input[next_byte_index++]) << free_bits; | ||
| } | ||
| } | ||
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| return {true, output}; | ||
| } | ||
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| } // namespace fml |
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|---|---|---|
| @@ -0,0 +1,19 @@ | ||
| // Copyright 2018 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| #ifndef FLUTTER_FML_BASE32_H_ | ||
| #define FLUTTER_FML_BASE32_H_ | ||
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| #include <string> | ||
| #include <utility> | ||
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| #include "flutter/fml/string_view.h" | ||
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| namespace fml { | ||
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| std::pair<bool, std::string> Base32Encode(StringView input); | ||
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| } // namespace fml | ||
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| #endif // FLUTTER_FML_BASE32_H_ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| // Copyright 2018 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| #include "flutter/fml/base32.h" | ||
| #include "gtest/gtest.h" | ||
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| TEST(Base32Test, CanEncode) { | ||
| { | ||
| auto result = fml::Base32Encode("hello"); | ||
| ASSERT_TRUE(result.first); | ||
| ASSERT_EQ(result.second, "NBSWY3DP"); | ||
| } | ||
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| { | ||
| auto result = fml::Base32Encode("helLo"); | ||
| ASSERT_TRUE(result.first); | ||
| ASSERT_EQ(result.second, "NBSWYTDP"); | ||
| } | ||
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| { | ||
| auto result = fml::Base32Encode(""); | ||
| ASSERT_TRUE(result.first); | ||
| ASSERT_EQ(result.second, ""); | ||
| } | ||
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| { | ||
| auto result = fml::Base32Encode("1"); | ||
| ASSERT_TRUE(result.first); | ||
| ASSERT_EQ(result.second, "GE"); | ||
| } | ||
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| { | ||
| auto result = fml::Base32Encode("helLo"); | ||
| ASSERT_TRUE(result.first); | ||
| ASSERT_EQ(result.second, "NBSWYTDP"); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| // Copyright 2018 The Flutter Authors. All rights reserved. | ||
| // Use of this source code is governed by a BSD-style license that can be | ||
| // found in the LICENSE file. | ||
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| #include "flutter/fml/file.h" | ||
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| #include "flutter/fml/logging.h" | ||
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| namespace fml { | ||
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| static fml::UniqueFD CreateDirectory(const fml::UniqueFD& base_directory, | ||
| const std::vector<std::string>& components, | ||
| FilePermission permission, | ||
| size_t index) { | ||
| FML_DCHECK(index <= components.size()); | ||
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| const char* file_path = components[index].c_str(); | ||
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| auto directory = OpenDirectory(base_directory, file_path, true, permission); | ||
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| if (!directory.is_valid()) { | ||
| return {}; | ||
| } | ||
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| if (index == components.size() - 1) { | ||
| return directory; | ||
| } | ||
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| return CreateDirectory(directory, components, permission, index + 1); | ||
| } | ||
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| fml::UniqueFD CreateDirectory(const fml::UniqueFD& base_directory, | ||
| const std::vector<std::string>& components, | ||
| FilePermission permission) { | ||
| if (!IsDirectory(base_directory)) { | ||
| return {}; | ||
| } | ||
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| if (components.size() == 0) { | ||
| return {}; | ||
| } | ||
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| return CreateDirectory(base_directory, components, permission, 0); | ||
| } | ||
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| } // namespace fml |
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