Fix shader paths again (#44)

* you can't call terminate() without an exception...

* Fix problem with linking + static and shader paths

Author: ManifoldFR

src/candlewick/core/Shader.cpp

@@ -10,6 +10,11 @@
 
 namespace candlewick {
 
+std::string g_shader_dir = g_default_shader_dir;
+
+void setShadersDirectory(const char *path) { g_shader_dir = path; }
+const char *currentShaderDirectory() { return g_shader_dir.c_str(); }
+
 SDL_GPUShaderStage detect_shader_stage(const char *filename) {
   SDL_GPUShaderStage stage;
   if (SDL_strstr(filename, ".vert"))
@@ -38,6 +43,9 @@ ShaderCode loadShaderFile(const char *filename, const char *shader_ext) {
   char shader_path[256];
   SDL_snprintf(shader_path, sizeof(shader_path), "%s/%s.%s",
                g_shader_dir.c_str(), filename, shader_ext);
+#ifndef NDEBUG
+  SDL_Log("Loading shader file %s", shader_path);
+#endif
 
   size_t code_size;
   void *code = SDL_LoadFile(shader_path, &code_size);

src/candlewick/core/Shader.h

@@ -6,13 +6,13 @@
 
 namespace candlewick {
 
-namespace {
-  static const char *g_default_shader_dir = CANDLEWICK_SHADER_BIN_DIR;
-  static std::string g_shader_dir = g_default_shader_dir;
-} // namespace
+constexpr const char *g_default_shader_dir = CANDLEWICK_SHADER_BIN_DIR;
 
-inline void setShadersDirectory(const char *path) { g_shader_dir = path; }
-inline const char *currentShaderDirectory() { return g_shader_dir.c_str(); }
+/// \brief Set the current (global) directory where shaders are to be found.
+/// \sa currentShaderDirectory()
+void setShadersDirectory(const char *path);
+/// \brief Get the current (global) directory where shaders are found.
+const char *currentShaderDirectory();
 
 SDL_GPUShaderStage detect_shader_stage(const char *filename);
 

src/candlewick/core/errors.h

@@ -38,11 +38,9 @@ namespace detail {
 inline void terminate_with_message(
     std::string_view msg,
     std::source_location location = std::source_location::current()) {
-  SDL_LogError(
-      SDL_LOG_CATEGORY_APPLICATION, "%s",
+  throw std::runtime_error(
       detail::error_message_format(location.function_name(), "{:s}", msg)
           .c_str());
-  ::std::terminate();
 }
 
 [[noreturn]]