swr: [rasterizer scripts] Put codegen scripts into a separate directory

Reviewed-by: Bruce Cherniak <[email protected]>

1 files changed, 125 insertions, 0 deletions

diff --git a/src/gallium/drivers/swr/rasterizer/codegen/gen_backends.py b/src/gallium/drivers/swr/rasterizer/codegen/gen_backends.py
new file mode 100644
index 00000000000..cbbc3780a68
--- /dev/null
+++ b/src/gallium/drivers/swr/rasterizer/codegen/gen_backends.py
@@ -0,0 +1,125 @@
+# Copyright (C) 2017 Intel Corporation.   All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice (including the next
+# paragraph) shall be included in all copies or substantial portions of the
+# Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+
+# Python source
+# Compatible with Python2.X and Python3.X
+
+from __future__ import print_function
+import itertools
+import math
+import argparse
+import os
+import sys
+from mako.template import Template
+from mako.exceptions import RichTraceback
+
+def write_template_to_string(template_filename, **kwargs):
+    try:
+        template = Template(filename=os.path.abspath(template_filename))
+        # Split + Join fixes line-endings for whatever platform you are using
+        return '\n'.join(template.render(**kwargs).splitlines())
+    except:
+        traceback = RichTraceback()
+        for (filename, lineno, function, line) in traceback.traceback:
+            print("File %s, line %s, in %s" % (filename, lineno, function))
+            print(line, "\n")
+        print("%s: %s" % (str(traceback.error.__class__.__name__), traceback.error))
+
+def write_template_to_file(template_filename, output_filename, **kwargs):
+    output_dirname = os.path.dirname(output_filename)
+    if not os.path.exists(output_dirname):
+        os.makedirs(output_dirname)
+    with open(output_filename, "w") as outfile:
+        print(write_template_to_string(template_filename, **kwargs), file=outfile)
+
+
+def main(args=sys.argv[1:]):
+    thisDir = os.path.dirname(os.path.realpath(__file__))
+    parser = argparse.ArgumentParser("Generate files and initialization functions for all permutuations of BackendPixelRate.")
+    parser.add_argument('--dim', help="gBackendPixelRateTable array dimensions", nargs='+', type=int, required=True)
+    parser.add_argument('--outdir', help="output directory", nargs='?', type=str, default=thisDir)
+    parser.add_argument('--split', help="how many lines of initialization per file [0=no split]", nargs='?', type=int, default='512')
+    parser.add_argument('--cpp', help="Generate cpp file(s)", action='store_true', default=False)
+    parser.add_argument('--cmake', help="Generate cmake file", action='store_true', default=False)
+
+
+    args = parser.parse_args(args);
+
+    output_list = []
+    for x in args.dim:
+        output_list.append(list(range(x)))
+
+    # generate all permutations possible for template paremeter inputs
+    output_combinations = list(itertools.product(*output_list))
+    output_list = []
+
+    # for each permutation
+    for x in range(len(output_combinations)):
+        # separate each template peram into its own list member
+        new_list = [output_combinations[x][i] for i in range(len(output_combinations[x]))]
+        tempStr = 'gBackendPixelRateTable'
+        #print each list member as an index in the multidimensional array
+        for i in new_list:
+            tempStr += '[' + str(i) + ']'
+        #map each entry in the permuation as its own string member, store as the template instantiation string
+        tempStr += " = BackendPixelRate<SwrBackendTraits<" + ','.join(map(str, output_combinations[x])) + '>>;'
+        #append the line of c++ code in the list of output lines
+        output_list.append(tempStr)
+
+    # how many files should we split the global template initialization into?
+    if (args.split == 0):
+        numFiles = 1
+    else:
+        numFiles = (len(output_list) + args.split - 1) // args.split
+    linesPerFile = (len(output_list) + numFiles - 1) // numFiles
+    chunkedList = [output_list[x:x+linesPerFile] for x in range(0, len(output_list), linesPerFile)]
+
+    # generate .cpp files
+    if args.cpp:
+        baseCppName = os.path.join(args.outdir, 'BackendPixelRate%s.cpp')
+        templateCpp = os.path.join(thisDir, 'templates', 'backend_template.cpp')
+
+        for fileNum in range(numFiles):
+            filename = baseCppName % str(fileNum)
+            print('Generating', filename)
+            write_template_to_file(
+                templateCpp,
+                baseCppName % str(fileNum),
+                fileNum=fileNum,
+                funcList=chunkedList[fileNum])
+
+    # generate gen_backend.cmake file
+    if args.cmake:
+        templateCmake = os.path.join(thisDir, 'templates', 'backend_template.cmake')
+        cmakeFile = os.path.join(args.outdir, 'gen_backends.cmake')
+        print('Generating', cmakeFile)
+        write_template_to_file(
+            templateCmake,
+            cmakeFile,
+            numFiles=numFiles,
+            baseCppName=baseCppName.replace('\\','/'))
+
+    print("Generated %d template instantiations in %d files" % (len(output_list), numFiles))
+
+    return 0
+
+if __name__ == '__main__':
+    sys.exit(main())