use shared sdl

hiisi/CMakeLists.txt

@@ -8,5 +8,4 @@ add_library(hiisi-engine SHARED
 set_property(TARGET hiisi-engine PROPERTY POSITION_INDEPENDENT_CODE ON)
 set_property(TARGET hiisi-engine PROPERTY LIBRARY_OUTPUT_PATH ${CMAKE_BINARY_DIR})
 
-target_link_libraries(hiisi-engine PRIVATE
-  SDL3::SDL3)
+target_link_libraries(hiisi-engine SDL3::SDL3-shared)

hiisi/hiisi.cpp

@@ -55,7 +55,7 @@ int iterate(EngineData *state)
     const float scale = ((float) (((int) (now % 1000)) - 500) / 500.0f) * direction;
 
     /* as you can see from this, rendering draws over whatever was drawn before it. */
-    SDL_SetRenderDrawColor(renderer, 0, 50, 50, SDL_ALPHA_OPAQUE);  /* black, full alpha */
+    SDL_SetRenderDrawColor(renderer, 0, 0, 0, SDL_ALPHA_OPAQUE);  /* black, full alpha */
     SDL_RenderClear(renderer);  /* start with a blank canvas. */
 
     /* Rectangles are comprised of set of X and Y coordinates, plus width and
@@ -84,7 +84,7 @@ int iterate(EngineData *state)
     rects[0].y = 50;
     rects[0].w = 100 + (100 * scale);
     rects[0].h = 50 + (50 * scale);
-    SDL_SetRenderDrawColor(renderer, 0, 0, 255, SDL_ALPHA_OPAQUE);  /* blue, full alpha */
+    SDL_SetRenderDrawColor(renderer, 0, 255, 255, SDL_ALPHA_OPAQUE);  /* blue, full alpha */
     SDL_RenderFillRect(renderer, &rects[0]);
 
 

hiisi/main.cpp

@@ -18,7 +18,7 @@ void reload_signal_handler(int) {
 
 Engine load_hiisi() {
     const char *name = "build/hiisi/libhiisi-engine.so";
-    void *mod = dlopen(name, RTLD_NOW);
+    void *mod = dlopen(name, RTLD_NOW|RTLD_GLOBAL);
 
     Lmid_t list;
     dlinfo(mod, RTLD_DI_LMID, &list);
@@ -104,9 +104,10 @@ int main(int argc, char **argv) {
     while (hiisi.event(&state)) {
         hiisi.iterate(&state);
         if (reload_requested) {
-            dlclose(hiisi.module);
+            Engine oldEngine = hiisi;
             hiisi = load_hiisi();
             reload_requested = false;
+            // dlclose(oldEngine.module);
         }
     }