Updated GLSL shader compile script

data/shaders/glsl/compileshaders.py

@@ -1,31 +1,49 @@
-import sys
+import argparse
+import fileinput
 import os
-import glob
 import subprocess
+import sys
 
-if len(sys.argv) < 2:
+parser = argparse.ArgumentParser(description='Compile all GLSL shaders')
-	sys.exit("Please provide a target directory")
+parser.add_argument('--glslang', type=str, help='path to glslangvalidator executable')
+parser.add_argument('--g', action='store_true', help='compile with debug symbols')
+args = parser.parse_args()
 
-if not os.path.exists(sys.argv[1]):
+def findGlslang():
-	sys.exit("%s is not a valid directory" % sys.argv[1])
+    def isExe(path):
+        return os.path.isfile(path) and os.access(path, os.X_OK)
 
-path = sys.argv[1]
+    if args.glslang != None and isExe(args.glslang):
+        return args.glslang
 
-shaderfiles = []
+    exe_name = "glslangvalidator"
-for exts in ('*.vert', '*.frag', '*.comp', '*.geom', '*.tesc', '*.tese'):
+    if os.name == "nt":
-	shaderfiles.extend(glob.glob(os.path.join(path, exts)))
+        exe_name += ".exe"
 
-failedshaders = []
+    for exe_dir in os.environ["PATH"].split(os.pathsep):
-for shaderfile in shaderfiles:
+        full_path = os.path.join(exe_dir, exe_name)
-		print("\n-------- %s --------\n" % shaderfile)
+        if isExe(full_path):
-		if subprocess.call("glslangValidator -V %s -o %s.spv" % (shaderfile, shaderfile), shell=True) != 0:
+            return full_path
-			failedshaders.append(shaderfile)
 
-print("\n-------- Compilation result --------\n")
+    sys.exit("Could not find DXC executable on PATH, and was not specified with --dxc")
 
-if len(failedshaders) == 0:
+glslang_path = findGlslang()
-	print("SUCCESS: All shaders compiled to SPIR-V")
+dir_path = os.path.dirname(os.path.realpath(__file__))
-else:
+dir_path = dir_path.replace('\\', '/')
-	print("ERROR: %d shader(s) could not be compiled:\n" % len(failedshaders))
+for root, dirs, files in os.walk(dir_path):
-	for failedshader in failedshaders:
+    for file in files:
-		print("\t" + failedshader)
+        if file.endswith(".vert") or file.endswith(".frag") or file.endswith(".comp") or file.endswith(".geom") or file.endswith(".tesc") or file.endswith(".tese") or file.endswith(".rgen") or file.endswith(".rchit") or file.endswith(".rmiss"):
+            input_file = os.path.join(root, file)
+            output_file = input_file + ".spv"
+
+            add_params = ""
+            if args.g:
+                add_params = "-g"
+
+            if file.endswith(".rgen") or file.endswith(".rchit") or file.endswith(".rmiss"):
+               add_params = add_params + " --target-env vulkan1.2"
+
+            res = subprocess.call("%s -V %s -o %s %s" % (glslang_path, input_file, output_file, add_params), shell=True)
+            # res = subprocess.call([glslang_path, '-V', input_file, '-o', output_file, add_params], shell=True)
+            if res != 0:
+                sys.exit()