114 lines
4.5 KiB
Python
114 lines
4.5 KiB
Python
# !/usr/bin/env python3
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"""
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SDL3_GPU Slang Compiler - Slangc Finder
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查找和验证Slangc编译器路径
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"""
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import os
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import sys
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import shutil
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import subprocess
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class SlangcFinder:
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@staticmethod
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def find_slangc() -> str:
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"""查找slangc编译器路径"""
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# 方法1: 使用shutil.which (推荐)
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slangc_path = shutil.which('slangc')
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if slangc_path:
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try:
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subprocess.run([slangc_path, '-v'],
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capture_output=True, check=True, timeout=10)
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print(f"Found slangc at: {slangc_path}")
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return slangc_path
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except (subprocess.CalledProcessError, subprocess.TimeoutExpired):
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pass
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# 方法2: 从环境变量获取
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slangc_from_env = os.environ.get('SLANGC_PATH')
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if slangc_from_env and os.path.isfile(slangc_from_env):
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try:
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subprocess.run([slangc_from_env, '-v'],
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capture_output=True, check=True, timeout=10)
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print(f"Found slangc from SLANGC_PATH: {slangc_from_env}")
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return slangc_from_env
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except (subprocess.CalledProcessError, subprocess.TimeoutExpired):
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pass
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# 方法3: 在常见位置搜索
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common_paths = [
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r'C:\Program Files\Slang\bin\slangc.exe',
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r'C:\Program Files (x86)\Slang\bin\slangc.exe',
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r'C:\tools\slang\bin\slangc.exe',
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r'C:\slang\bin\slangc.exe'
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]
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# 也尝试从PATH中的每个目录查找
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path_dirs = os.environ.get('PATH', '').split(os.pathsep)
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for path_dir in path_dirs:
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if path_dir: # 跳过空路径
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potential_path = os.path.join(path_dir, 'slangc.exe')
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common_paths.append(potential_path)
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for path in common_paths:
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if os.path.isfile(path):
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try:
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subprocess.run([path, '-v'],
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capture_output=True, check=True, timeout=10)
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print(f"Found slangc at: {path}")
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return path
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except (subprocess.CalledProcessError, subprocess.TimeoutExpired):
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continue
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# 方法4: 尝试直接调用 (有时候PATH在Python中不完整)
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try:
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result = subprocess.run(['slangc', '-v'],
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capture_output=True, check=True, timeout=10)
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print("Found slangc in PATH")
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return 'slangc'
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except (subprocess.CalledProcessError, subprocess.TimeoutExpired, FileNotFoundError):
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pass
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# 如果都失败了，显示调试信息
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print("Debug information:")
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print(f"Current working directory: {os.getcwd()}")
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print(f"Python executable: {sys.executable}")
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print(f"PATH environment variable:")
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for i, path in enumerate(os.environ.get('PATH', '').split(os.pathsep)):
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print(f" {i}: {path}")
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raise RuntimeError("""
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Cannot find slangc compiler. Please try one of the following:
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Set SLANGC_PATH environment variable to the full path of slangc.exe
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Ensure slangc.exe is in your PATH and restart your terminal
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Install Slang to a standard location like C:\\Program Files\\Slang\\bin\\
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Run the script from the same terminal where 'slangc --version' works
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You can also specify the path directly when creating the compiler:
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compiler = SDL3GPUSlangCompiler()
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compiler.slangc_path = r'C:\\path\\to\\slangc.exe'
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""")
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slangc_path = SlangcFinder.find_slangc()
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# 如果是windows系统，检查DXC编译器
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if os.name == 'nt':
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# 查找dxcapsviewer.exe路径, 避免查找dxc时找到Vulkan SDK的dxc.exe
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dxcapsviewer_path = shutil.which('dxcapsviewer.exe')
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if dxcapsviewer_path:
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# dxc.exe一般与dxcapsviewer.exe在同一目录
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dxc_path = os.path.join(os.path.dirname(dxcapsviewer_path), 'dxc.exe')
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# 检查dxc.exe是否存在
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if not os.path.isfile(dxc_path):
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print("Warning: dxc.exe not found in the same directory as dxcapsviewer.exe.")
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dxc_path = None
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else:
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# 如果没有找到dxcapsviewer.exe，尝试直接查找dxc.exe
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dxc_path = shutil.which('dxc.exe')
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# 检查是否有dxil.dll
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if dxc_path:
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dxil_dll_path = os.path.join(os.path.dirname(dxc_path), 'dxil.dll')
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if not os.path.isfile(dxil_dll_path):
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print("Warning: dxil.dll not found in the same directory as dxc.exe.")
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dxc_path = None |