diff --git a/tools/file_to_c/CMakeLists.txt b/tools/file_to_c/CMakeLists.txt new file mode 100644 index 0000000..c700f4e --- /dev/null +++ b/tools/file_to_c/CMakeLists.txt @@ -0,0 +1,5 @@ +cmake_minimum_required(VERSION 3.20) +project(file_to_c) +set(CMAKE_CXX_STANDARD 17) + +add_executable(file_to_c "file_to_c.cpp") \ No newline at end of file diff --git a/tools/file_to_c/file_to_c.cpp b/tools/file_to_c/file_to_c.cpp new file mode 100644 index 0000000..4d69e8c --- /dev/null +++ b/tools/file_to_c/file_to_c.cpp @@ -0,0 +1,105 @@ +/* + MIT License + + Copyright (c) 2024 RT64 Contributors + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in all + copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + SOFTWARE. +*/ + +#include +#include +#include +#include + +std::vector read_file(const char* path) { + std::ifstream input_file{path, std::ios::binary}; + std::vector ret{}; + + if (!input_file.good()) { + return ret; + } + + // Get the length of the file + input_file.seekg(0, std::ios::end); + ret.resize(input_file.tellg()); + + // Read the file contents into the vector + input_file.seekg(0, std::ios::beg); + input_file.read(ret.data(), ret.size()); + + return ret; +} + +void create_parent_if_needed(const char* path) { + std::filesystem::path parent_path = std::filesystem::path{path}.parent_path(); + if (!parent_path.empty()) { + std::filesystem::create_directories(parent_path); + } +} + +int main(int argc, const char** argv) { + if (argc != 6) { + printf("Usage: %s [input file] [array name] [array type] [output C file] [output C header]\n", argv[0]); + return EXIT_SUCCESS; + } + + const char* input_path = argv[1]; + const char* array_name = argv[2]; + const char* array_type = argv[3]; + const char* output_c_path = argv[4]; + const char* output_h_path = argv[5]; + + // Read the input file's contents + std::vector contents = read_file(input_path); + + if (contents.empty()) { + fprintf(stderr, "Failed to open file %s! (Or it's empty)\n", input_path); + return EXIT_FAILURE; + } + + // Create the output directories if they don't exist + create_parent_if_needed(output_c_path); + create_parent_if_needed(output_h_path); + + // Write the C file with the array + { + std::ofstream output_c_file{output_c_path}; + output_c_file << "extern " << array_type << " " << array_name << "[" << contents.size() << "];\n"; + output_c_file << array_type << " " << array_name << "[" << contents.size() << "] = {"; + + for (char x : contents) { + output_c_file << (int)x << ", "; + } + + output_c_file << "};\n"; + } + + // Write the header file with the extern array + { + std::ofstream output_h_file{output_h_path}; + output_h_file << + "#ifdef __cplusplus\n" + " extern \"C\" {\n" + "#endif\n" + "extern " << array_type << " " << array_name << "[" << contents.size() << "];\n" + "#ifdef __cplusplus\n" + " }\n" + "#endif\n"; + } +}