merge upstream

leenkx/blender/lnx/material/cycles.py

@@ -53,9 +53,112 @@ else:
 # Particle info export
 particle_info: Dict[str, bool] = {}
 
+texture_resize_cache = {}
+
 state: Optional[ParserState]
 
 
+def resize_texture_if_needed(image: bpy.types.Image, filepath: str, max_size: int) -> str:
+    """
+    Resize texture if it exceeds max_size. Returns path to resized texture or original.
+    Caches results to avoid re-processing unchanged textures.
+    """
+    if max_size <= 0:
+        return filepath
+    
+    if image.size[0] <= max_size and image.size[1] <= max_size:
+        return filepath
+    
+    wrd = bpy.data.worlds['Lnx']
+    texture_quality = wrd.lnx_texture_quality
+    
+    cache_key = (filepath, max_size, texture_quality, os.path.getmtime(filepath) if os.path.exists(filepath) else 0)
+    if cache_key in _texture_resize_cache:
+        cached_path = _texture_resize_cache[cache_key]
+        if os.path.exists(cached_path):
+            return cached_path
+    
+    width, height = image.size[0], image.size[1]
+    if width > height:
+        new_width = max_size
+        new_height = int((height / width) * max_size)
+    else:
+        new_height = max_size
+        new_width = int((width / height) * max_size)
+    
+    build_dir = lnx.utils.get_fp_build()
+    resized_dir = os.path.join(build_dir, 'compiled', 'Assets', 'unpacked')
+    os.makedirs(resized_dir, exist_ok=True)
+    
+    basename = os.path.basename(filepath)
+    name, ext = os.path.splitext(basename)
+    quality_suffix = f"q{int(texture_quality * 100)}"
+    resized_path = os.path.join(resized_dir, f"{name}_{max_size}px_{quality_suffix}{ext}")
+    
+    if os.path.exists(resized_path):
+        src_mtime = os.path.getmtime(filepath)
+        dst_mtime = os.path.getmtime(resized_path)
+        if dst_mtime >= src_mtime:
+            _texture_resize_cache[cache_key] = resized_path
+            return resized_path
+    
+    try:
+        ffmpeg_path = lnx.utils.get_ffmpeg_path()
+        
+        if ffmpeg_path is None or ffmpeg_path == '':
+            print(f"[Texture Optimizer] WARNING: FFmpeg not found. Please set FFmpeg path in addon preferences.")
+            print(f"[Texture Optimizer] Skipping resize for: {basename}")
+            return filepath
+        
+        file_ext = os.path.splitext(filepath)[1].lower().lstrip('.')
+        
+        cmd = [
+            ffmpeg_path,
+            '-y', 
+            '-i', filepath,
+            '-vf', f'scale={new_width}:{new_height}:flags=lanczos',
+        ]
+        
+        if file_ext in ('png', 'tga', 'bmp'):
+            compression_level = round((1.0 - texture_quality) * 9)
+            cmd.extend(['-compression_level', str(compression_level)])
+        else:
+            qscale = round(2 + (1.0 - texture_quality) * 29)
+            cmd.extend(['-q:v', str(qscale)])
+        
+        cmd.append(resized_path)
+        
+        startupinfo = None
+        if os.name == 'nt': 
+            startupinfo = subprocess.STARTUPINFO()
+            startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
+            startupinfo.wShowWindow = subprocess.SW_HIDE
+        
+        result = subprocess.run(
+            cmd,
+            stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE,
+            startupinfo=startupinfo,
+            timeout=60
+        )
+        
+        if result.returncode == 0 and os.path.exists(resized_path):
+            print(f"[Texture Optimizer] Resized: {basename} {width}x{height} -> {new_width}x{new_height}")
+            _texture_resize_cache[cache_key] = resized_path
+            return resized_path
+        else:
+            error_msg = result.stderr.decode('utf-8', errors='ignore') if result.stderr else 'Unknown error'
+            print(f"[Texture Optimizer] WARNING: FFmpeg failed to resize {basename}: {error_msg}")
+            return filepath
+            
+    except subprocess.TimeoutExpired:
+        print(f"[Texture Optimizer] WARNING: FFmpeg timeout while resizing {basename}")
+        return filepath
+    except Exception as e:
+        print(f"[Texture Optimizer] WARNING: Failed to resize {basename}: {e}")
+        return filepath
+
+
 def parse(nodes, con: ShaderContext,
           vert: Shader, frag: Shader, geom: Shader, tesc: Shader, tese: Shader,
           parse_surface=True, parse_opacity=True, parse_displacement=True, basecol_only=False):
@@ -897,6 +1000,11 @@ def make_texture(
                 lnx.utils.convert_image(image, converted_path, file_format=fmt)
             lnx.assets.add(converted_path)
         else:
+            wrd = bpy.data.worlds['Lnx']
+            max_size = int(wrd.lnx_max_texture_size)
+            if max_size > 0 and image is not None:
+                filepath = resize_texture_if_needed(image, filepath, max_size)
+            
             # Link image path to assets
             # TODO: Khamake converts .PNG to .jpg? Convert ext to lowercase on windows
             if lnx.utils.get_os() == 'win':