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https://github.com/johndoe6345789/SDL3CPlusPlus.git
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johndoe6345789
198179bfca
- Replaced macro-based logging with a dedicated Logger class for improved readability and maintainability. - Introduced TraceGuard class for automatic function entry/exit logging. - Updated all relevant source files to utilize the new logging and tracing mechanisms. - Consolidated SDL_MAIN_HANDLED definition into a separate header file (sdl_macros.hpp) for better organization. - Ensured consistent logging practices across the application, including error handling and debug information.
77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
#include "script/shader_manager.hpp"
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#include "logging/logger.hpp"
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#include <lua.hpp>
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#include <stdexcept>
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#include <string>
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#include <unordered_map>
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namespace sdl3cpp::script {
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ShaderManager::ShaderManager(lua_State* L) : L_(L) {
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sdl3cpp::logging::TraceGuard trace(__PRETTY_FUNCTION__);
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}
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std::unordered_map<std::string, ShaderManager::ShaderPaths> ShaderManager::LoadShaderPathsMap() {
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lua_getglobal(L_, "get_shader_paths");
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if (!lua_isfunction(L_, -1)) {
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lua_pop(L_, 1);
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throw std::runtime_error("Lua function 'get_shader_paths' is missing");
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}
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if (lua_pcall(L_, 0, 1, 0) != LUA_OK) {
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std::string message = GetLuaError();
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lua_pop(L_, 1);
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throw std::runtime_error("Lua get_shader_paths failed: " + message);
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}
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if (!lua_istable(L_, -1)) {
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lua_pop(L_, 1);
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throw std::runtime_error("'get_shader_paths' did not return a table");
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}
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std::unordered_map<std::string, ShaderPaths> shaderMap;
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lua_pushnil(L_);
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while (lua_next(L_, -2) != 0) {
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if (lua_isstring(L_, -2) && lua_istable(L_, -1)) {
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std::string key = lua_tostring(L_, -2);
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shaderMap.emplace(key, ReadShaderPathsTable(-1));
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}
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lua_pop(L_, 1);
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}
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lua_pop(L_, 1);
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if (shaderMap.empty()) {
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throw std::runtime_error("'get_shader_paths' did not return any shader variants");
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}
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return shaderMap;
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}
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ShaderManager::ShaderPaths ShaderManager::ReadShaderPathsTable(int index) {
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ShaderPaths paths;
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int absIndex = lua_absindex(L_, index);
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lua_getfield(L_, absIndex, "vertex");
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if (!lua_isstring(L_, -1)) {
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lua_pop(L_, 1);
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throw std::runtime_error("Shader path 'vertex' must be a string");
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}
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paths.vertex = lua_tostring(L_, -1);
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lua_pop(L_, 1);
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lua_getfield(L_, absIndex, "fragment");
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if (!lua_isstring(L_, -1)) {
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lua_pop(L_, 1);
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throw std::runtime_error("Shader path 'fragment' must be a string");
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}
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paths.fragment = lua_tostring(L_, -1);
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lua_pop(L_, 1);
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return paths;
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}
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std::string ShaderManager::GetLuaError() {
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const char* message = lua_tostring(L_, -1);
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return message ? message : "unknown lua error";
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}
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} // namespace sdl3cpp::script
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