multi-gpu apple metal graphics

src/bundles/graphics_metal/Makefile

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+# Makefile for ChimeraX-GraphicsMetal bundle
+
+PYTHON = python3
+CHIMERAX = chimerax
+BUNDLE_NAME = ChimeraX-GraphicsMetal
+BUNDLE_VERSION = 0.1
+
+.PHONY: clean build install test wheel debug develop lint
+
+# Default target
+all: build
+
+# Build the bundle
+build:
+	$(PYTHON) -m pip install -e .
+
+# Create a wheel package
+wheel:
+	$(PYTHON) -m build --wheel
+
+# Install the bundle in the current ChimeraX environment
+install:
+	$(PYTHON) -m pip install .
+
+# Install in development mode
+develop:
+	$(PYTHON) -m pip install -e .
+
+# Install the bundle in ChimeraX
+install-chimerax: wheel
+	$(CHIMERAX) --nogui --exit --cmd "toolshed install dist/$(BUNDLE_NAME)-$(BUNDLE_VERSION)-*.whl"
+
+# Run tests
+test:
+	$(PYTHON) -m pytest tests
+
+# Clean build artifacts
+clean:
+	rm -rf build/
+	rm -rf dist/
+	rm -rf *.egg-info/
+	rm -rf src/chimerax/graphics_metal/__pycache__/
+	rm -rf tests/__pycache__/
+	rm -f src/cython/*.c
+	rm -f src/cython/*.cpp
+	rm -f src/cython/*.html
+	rm -f src/chimerax/graphics_metal/_metal*.so
+
+# Build with debug info
+debug:
+	CFLAGS="-O0 -g" $(PYTHON) -m pip install -e .
+
+# Compile Metal shaders
+shaders:
+	@echo "Compiling Metal shaders..."
+	@mkdir -p build/metallib
+	for file in metal/shaders/*.metal; do \
+		xcrun -sdk macosx metal -c $$file -o build/metallib/$$(basename $$file .metal).air; \
+	done
+	xcrun -sdk macosx metallib build/metallib/*.air -o src/chimerax/graphics_metal/metal_shaders/default.metallib
+
+# Run linter
+lint:
+	flake8 src tests