300ea9f083
This speeds up the preprocessor and will allow for faster load time. # Conflicts: # source/blender/gpu/glsl_preprocess/glsl_preprocess.cc
72 lines
1.7 KiB
C++
72 lines
1.7 KiB
C++
/* SPDX-FileCopyrightText: 2024 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup glsl_preprocess
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*/
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#include <fstream>
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#include <iostream>
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#include <regex>
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#include <string>
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#include "glsl_preprocess.hh"
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int main(int argc, char **argv)
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{
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if (argc != 3) {
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std::cerr << "Usage: glsl_preprocess <data_file_from> <data_file_to>" << std::endl;
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exit(1);
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}
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const char *input_file_name = argv[1];
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const char *output_file_name = argv[2];
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/* Open the input file for reading */
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std::ifstream input_file(input_file_name);
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if (!input_file) {
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std::cerr << "Error: Could not open input file " << input_file_name << std::endl;
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exit(1);
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}
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/* Open the output file for writing */
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std::ofstream output_file(output_file_name);
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if (!output_file) {
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std::cerr << "Error: Could not open output file " << output_file_name << std::endl;
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input_file.close();
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exit(1);
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}
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std::stringstream buffer;
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buffer << input_file.rdbuf();
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int error = 0;
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size_t line_index = 0;
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auto report_error =
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[&](const std::string &src_line, const std::smatch &match, const char *err_msg) {
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size_t err_line = line_index;
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size_t err_char = match.position();
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std::cerr << input_file_name;
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std::cerr << ':' << std::to_string(err_line) << ':' << std::to_string(err_char);
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std::cerr << ": error: " << err_msg << std::endl;
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std::cerr << src_line << std::endl;
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std::cerr << std::string(err_char, ' ') << '^' << std::endl;
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error++;
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};
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blender::gpu::shader::Preprocessor processor(report_error);
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processor << buffer.str();
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output_file << processor.str();
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input_file.close();
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output_file.close();
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return error;
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}
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