raylib: image dimensions are optional (#36332)

* meas

* now no resizing

* clean up

selfdrive/ui/layouts/onboarding.py

@@ -46,7 +46,7 @@ class TrainingGuide(Widget):
     paths = sorted(paths, key=lambda x: int(re.search(r'\d+', x).group()))
     for fn in paths:
       path = os.path.join(BASEDIR, "selfdrive/assets/training", fn)
-      self._images.append(gui_app.texture(path, gui_app.width, gui_app.height))
+      self._images.append(gui_app.texture(path))
 
   def _handle_mouse_release(self, mouse_pos):
     if rl.check_collision_point_rec(mouse_pos, STEP_RECTS[self._step]):

system/ui/lib/application.py

@@ -189,7 +189,8 @@ class GuiApplication:
 
     self._modal_overlay = ModalOverlay(overlay=overlay, callback=callback)
 
-  def texture(self, asset_path: str, width: int, height: int, alpha_premultiply=False, keep_aspect_ratio=True):
+  def texture(self, asset_path: str, width: int | None = None, height: int | None = None,
+              alpha_premultiply=False, keep_aspect_ratio=True):
     cache_key = f"{asset_path}_{width}_{height}_{alpha_premultiply}{keep_aspect_ratio}"
     if cache_key in self._textures:
       return self._textures[cache_key]
@@ -199,13 +200,15 @@ class GuiApplication:
     self._textures[cache_key] = texture_obj
     return texture_obj
 
-  def _load_texture_from_image(self, image_path: str, width: int, height: int, alpha_premultiply=False, keep_aspect_ratio=True):
+  def _load_texture_from_image(self, image_path: str, width: int | None = None, height: int | None = None,
+                               alpha_premultiply=False, keep_aspect_ratio=True):
     """Load and resize a texture, storing it for later automatic unloading."""
     image = rl.load_image(image_path)
 
     if alpha_premultiply:
       rl.image_alpha_premultiply(image)
 
+    if width is not None and height is not None:
       # Resize with aspect ratio preservation if requested
       if keep_aspect_ratio:
         orig_width = image.width