diff --git a/src/twn_loop.c b/src/twn_loop.c
index ab8336b..28b2820 100644
--- a/src/twn_loop.c
+++ b/src/twn_loop.c
@@ -11,6 +11,7 @@
 #include <stb_ds.h>
 #include <toml.h>
 
+/* TODO: should not be used here directly */
 #ifdef EMSCRIPTEN
 #include <GLES2/gl2.h>
 #else
@@ -22,6 +23,8 @@
 
 
 static int event_callback(void *userdata, SDL_Event *event) {
+    (void)userdata;
+
     switch (event->type) {
     case SDL_WINDOWEVENT:
         if (event->window.windowID != ctx.window_id)
@@ -43,6 +46,9 @@ static int event_callback(void *userdata, SDL_Event *event) {
     default:
         break;
     }
+
+    /* ignored */
+    return 0;
 }
 
 
@@ -489,7 +495,7 @@ static bool initialize(void) {
     /* might need this to have multiple windows */
     ctx.window_id = SDL_GetWindowID(ctx.window);
 
-    glViewport(0, 0, ctx.base_render_width, ctx.base_render_height);
+    glViewport(0, 0, (GLsizei)ctx.base_render_width, (GLsizei)ctx.base_render_height);
 
     /* TODO: */
     // SDL_GetRendererOutputSize(ctx.renderer, &ctx.window_w, &ctx.window_h);
diff --git a/src/twn_textures.c b/src/twn_textures.c
index 03c289d..d3fa9e7 100644
--- a/src/twn_textures.c
+++ b/src/twn_textures.c
@@ -343,7 +343,7 @@ static TextureKey textures_load(TextureCache *cache, const char *path) {
     };
 
     /* it's a "loner texture," it doesn't fit in an atlas so it's not in one */
-    if (surface->w >= ctx.texture_atlas_size || surface->h >= ctx.texture_atlas_size) {
+    if (surface->w >= (int)ctx.texture_atlas_size || surface->h >= (int)ctx.texture_atlas_size) {
         if (ctx.game.debug) {
             if (surface->w > 2048 || surface->h > 2048)
                 log_warn("Unportable texture dimensions for %s, use 2048x2048 at max", path);
@@ -370,10 +370,10 @@ void textures_update_atlas(TextureCache *cache) {
     /* this function makes a lot more sense if you read stb_rect_pack.h */
     stbrp_context pack_ctx; /* target info */
     stbrp_init_target(&pack_ctx,
-                      ctx.texture_atlas_size,
-                      ctx.texture_atlas_size,
+                      (int)ctx.texture_atlas_size,
+                      (int)ctx.texture_atlas_size,
                       cache->node_buffer,
-                      ctx.texture_atlas_size);
+                      (int)ctx.texture_atlas_size);
 
     stbrp_rect *rects = create_rects_from_cache(cache);
 
@@ -495,7 +495,7 @@ Rect textures_get_dims(const TextureCache *cache, TextureKey key) {
         if (cache->hash[key.id].value.loner_texture != 0)
             return cache->hash[key.id].value.srcrect;
         else
-            return (Rect){ .w = ctx.texture_atlas_size, .h = ctx.texture_atlas_size };
+            return (Rect){ .w = (float)ctx.texture_atlas_size, .h = (float)ctx.texture_atlas_size };
     } else {
         CRY("Texture lookup failed.",
             "Tried to get texture that isn't loaded.");