blob: 38da20933215c54ba0d7db3033936c9bd9813638 [file] [log] [blame]
#!/usr/bin/python
# Copyright 2016 The ANGLE Project Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# gen_dxgi_format_table.py:
# Code generation for DXGI format map.
from datetime import date
import sys
sys.path.append('../..')
import angle_format
template_cpp = """// GENERATED FILE - DO NOT EDIT.
// Generated by {script_name} using data from {data_source_name}.
//
// Copyright {copyright_year} The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// DXGI format info:
// Determining metadata about a DXGI format.
#include "libANGLE/renderer/Format.h"
using namespace angle;
namespace rx
{{
namespace d3d11
{{
GLenum GetComponentType(DXGI_FORMAT dxgiFormat)
{{
switch (dxgiFormat)
{{
{component_type_cases} default:
break;
}}
UNREACHABLE();
return GL_NONE;
}}
}} // namespace d3d11
namespace d3d11_angle
{{
const Format &GetFormat(DXGI_FORMAT dxgiFormat)
{{
switch (dxgiFormat)
{{
{format_cases} default:
break;
}}
UNREACHABLE();
return Format::Get(FormatID::NONE);
}}
}} // namespace d3d11_angle
}} // namespace rx
"""
template_format_case = """ case DXGI_FORMAT_{dxgi_format}:
return {result};
"""
template_undefined_case = """ case DXGI_FORMAT_{dxgi_format}:
break;
"""
def format_case(dxgi_format, result):
return template_format_case.format(
dxgi_format = dxgi_format,
result = result)
def undefined_case(dxgi_format):
return template_undefined_case.format(dxgi_format = dxgi_format)
component_cases = ""
format_cases = ""
input_data = 'dxgi_format_data.json'
dxgi_map = angle_format.load_json(input_data)
types = {
'SNORM': 'GL_SIGNED_NORMALIZED',
'UNORM': 'GL_UNSIGNED_NORMALIZED',
'SINT': 'GL_INT',
'UINT': 'GL_UNSIGNED_INT',
'FLOAT': 'GL_FLOAT',
'SHAREDEXP': 'GL_FLOAT'
}
all_angle = angle_format.get_all_angle_formats()
for dxgi_format, angle_format in sorted(dxgi_map.iteritems()):
found = [ctype in dxgi_format for ctype in types.keys()]
count = reduce((lambda a, b: int(a) + int(b)), found)
component_type = 'GL_NONE'
if count == 1:
gltype = next(gltype for ctype, gltype in types.iteritems() if ctype in dxgi_format)
component_cases += format_case(dxgi_format, gltype)
else:
component_cases += undefined_case(dxgi_format)
if angle_format == "":
angle_format = dxgi_format
if angle_format in all_angle:
angle_format = "Format::Get(FormatID::" + angle_format + ")"
format_cases += format_case(dxgi_format, angle_format)
else:
format_cases += undefined_case(dxgi_format)
with open('dxgi_format_map_autogen.cpp', 'wt') as out_file:
output_cpp = template_cpp.format(
script_name = sys.argv[0],
data_source_name = input_data,
copyright_year = date.today().year,
component_type_cases = component_cases,
format_cases = format_cases)
out_file.write(output_cpp)
out_file.close()