Cleanup math with qfengine ports again

3 files changed, 93 insertions, 1 deletions

diff --git a/core/io/CMakeLists.txt b/core/io/CMakeLists.txt
index 0639d2c..3fe9fb1 100644
--- a/core/io/CMakeLists.txt
+++ b/core/io/CMakeLists.txt
@@ -4,4 +4,6 @@ target_sources(core PRIVATE
     "${CMAKE_CURRENT_LIST_DIR}/cmdline.cc"
     "${CMAKE_CURRENT_LIST_DIR}/cmdline.hh"
     "${CMAKE_CURRENT_LIST_DIR}/config_map.cc"
-    "${CMAKE_CURRENT_LIST_DIR}/config_map.hh")
+    "${CMAKE_CURRENT_LIST_DIR}/config_map.hh"
+    "${CMAKE_CURRENT_LIST_DIR}/physfs.cc"
+    "${CMAKE_CURRENT_LIST_DIR}/physfs.hh")
diff --git a/core/io/physfs.cc b/core/io/physfs.cc
new file mode 100644
index 0000000..1c36f88
--- /dev/null
+++ b/core/io/physfs.cc
@@ -0,0 +1,76 @@
+#include "core/pch.hh"
+
+#include "core/io/physfs.hh"
+
+bool io::read_file(std::string_view path, std::vector<std::byte>& buffer)
+{
+    auto file = PHYSFS_openRead(std::string(path).c_str());
+
+    if(file == nullptr) {
+        spdlog::error("physfs: {}: {}", path, physfs_error());
+        return false;
+    }
+
+    PHYSFS_sint64 file_size = PHYSFS_fileLength(file);
+    buffer.resize(static_cast<std::size_t>(file_size));
+
+    PHYSFS_readBytes(file, buffer.data(), file_size);
+    PHYSFS_close(file);
+
+    return true;
+}
+
+bool io::read_file(std::string_view path, std::string& buffer)
+{
+    auto file = PHYSFS_openRead(std::string(path).c_str());
+
+    if(file == nullptr) {
+        spdlog::error("physfs: {}: {}", path, physfs_error());
+        return false;
+    }
+
+    PHYSFS_sint64 file_size = PHYSFS_fileLength(file);
+    buffer.resize(static_cast<std::size_t>(file_size));
+
+    PHYSFS_readBytes(file, buffer.data(), file_size);
+    PHYSFS_close(file);
+
+    return true;
+}
+
+bool io::write_file(std::string_view path, const std::vector<std::byte>& buffer)
+{
+    auto file = PHYSFS_openWrite(std::string(path).c_str());
+
+    if(file == nullptr) {
+        spdlog::error("physfs: {}: {}", path, physfs_error());
+        return false;
+    }
+
+    PHYSFS_writeBytes(file, buffer.data(), static_cast<PHYSFS_uint64>(buffer.size()));
+    PHYSFS_close(file);
+
+    return true;
+}
+
+bool io::write_file(std::string_view path, const std::string& buffer)
+{
+    auto file = PHYSFS_openWrite(std::string(path).c_str());
+
+    if(file == nullptr) {
+        spdlog::error("physfs: {}: {}", path, physfs_error());
+        return false;
+    }
+
+    PHYSFS_writeBytes(file, buffer.data(), static_cast<PHYSFS_uint64>(buffer.size()));
+    PHYSFS_close(file);
+
+    return true;
+}
+
+std::string_view io::physfs_error(void)
+{
+    auto error_code = PHYSFS_getLastErrorCode();
+    auto error_string = PHYSFS_getErrorByCode(error_code);
+    return std::string_view(error_string, std::strlen(error_string));
+}
diff --git a/core/io/physfs.hh b/core/io/physfs.hh
new file mode 100644
index 0000000..01282ad
--- /dev/null
+++ b/core/io/physfs.hh
@@ -0,0 +1,14 @@
+#pragma once
+
+namespace io
+{
+bool read_file(std::string_view path, std::vector<std::byte>& buffer);
+bool read_file(std::string_view path, std::string& buffer);
+bool write_file(std::string_view path, const std::vector<std::byte>& buffer);
+bool write_file(std::string_view path, const std::string& buffer);
+} // namespace io
+
+namespace io
+{
+std::string_view physfs_error(void);
+} // namespace io