You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
236 lines
7.7 KiB
236 lines
7.7 KiB
#!/usr/bin/python3
|
|
#
|
|
# Copyright 2019 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_gl_enum_utils.py:
|
|
# Generates GLenum value to string mapping for ANGLE
|
|
# NOTE: don't run this script directly. Run scripts/run_code_generation.py.
|
|
|
|
import sys
|
|
import os
|
|
|
|
import registry_xml
|
|
|
|
template_gl_enums_header = """// GENERATED FILE - DO NOT EDIT.
|
|
// Generated by {script_name} using data from {data_source_name}.
|
|
//
|
|
// Copyright 2019 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.
|
|
//
|
|
// gl_enum_utils_autogen.h:
|
|
// mapping of GLenum value to string.
|
|
|
|
# ifndef LIBANGLE_GL_ENUM_UTILS_AUTOGEN_H_
|
|
# define LIBANGLE_GL_ENUM_UTILS_AUTOGEN_H_
|
|
|
|
namespace gl
|
|
{{
|
|
enum class GLenumGroup
|
|
{{
|
|
{gl_enum_groups}
|
|
}};
|
|
}} // namespace gl
|
|
|
|
# endif // LIBANGLE_GL_ENUM_UTILS_AUTOGEN_H_
|
|
"""
|
|
|
|
template_gl_enums_source = """// GENERATED FILE - DO NOT EDIT.
|
|
// Generated by {script_name} using data from {data_source_name}.
|
|
//
|
|
// Copyright 2019 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.
|
|
//
|
|
// gl_enum_utils_autogen.cpp:
|
|
// mapping of GLenum value to string.
|
|
|
|
#include "libANGLE/capture/gl_enum_utils_autogen.h"
|
|
|
|
#include "libANGLE/capture/gl_enum_utils.h"
|
|
|
|
namespace gl
|
|
{{
|
|
namespace
|
|
{{
|
|
const char *UnknownGLenumToString(unsigned int value)
|
|
{{
|
|
constexpr size_t kBufferSize = 64;
|
|
static thread_local char sBuffer[kBufferSize];
|
|
snprintf(sBuffer, kBufferSize, "0x%04X", value);
|
|
return sBuffer;
|
|
}}
|
|
}} // anonymous namespace
|
|
|
|
const char *GLenumToString(GLenumGroup enumGroup, unsigned int value)
|
|
{{
|
|
switch (enumGroup)
|
|
{{
|
|
{gl_enums_value_to_string_table}
|
|
default:
|
|
return UnknownGLenumToString(value);
|
|
}}
|
|
}}
|
|
}} // namespace gl
|
|
|
|
"""
|
|
|
|
template_enum_group_case = """case GLenumGroup::{group_name}: {{
|
|
switch (value) {{
|
|
{inner_group_cases}
|
|
default:
|
|
return UnknownGLenumToString(value);
|
|
}}
|
|
}}
|
|
"""
|
|
|
|
template_enum_value_to_string_case = """case {value}: return {name};"""
|
|
|
|
exclude_gl_enums = {
|
|
'GL_NO_ERROR', 'GL_TIMEOUT_IGNORED', 'GL_INVALID_INDEX', 'GL_VERSION_ES_CL_1_0',
|
|
'GL_VERSION_ES_CM_1_1', 'GL_VERSION_ES_CL_1_1'
|
|
}
|
|
exclude_gl_enum_groups = {'SpecialNumbers'}
|
|
|
|
|
|
def dump_value_to_string_mapping(gl_enum_in_groups, exporting_enums):
|
|
exporting_groups = list()
|
|
for group_name, inner_mapping in gl_enum_in_groups.items():
|
|
string_value_pairs = list(filter(lambda x: x[0] in exporting_enums, inner_mapping.items()))
|
|
if not string_value_pairs:
|
|
continue
|
|
|
|
# sort according values
|
|
string_value_pairs.sort(key=lambda x: (x[1], x[0]))
|
|
|
|
# remove all duplicate values from the pairs list
|
|
# some value may have more than one GLenum mapped to them, such as:
|
|
# GL_DRAW_FRAMEBUFFER_BINDING and GL_FRAMEBUFFER_BINDING
|
|
# GL_BLEND_EQUATION_RGB and GL_BLEND_EQUATION
|
|
# it is safe to output either one of them, for simplity here just
|
|
# choose the shorter one which comes first in the sorted list
|
|
exporting_string_value_pairs = list()
|
|
for index, pair in enumerate(string_value_pairs):
|
|
if index == 0 or pair[1] != string_value_pairs[index - 1][1]:
|
|
exporting_string_value_pairs.append(pair)
|
|
|
|
inner_code_block = "\n".join([
|
|
template_enum_value_to_string_case.format(
|
|
value='0x%X' % value,
|
|
name='"%s"' % name,
|
|
) for name, value in exporting_string_value_pairs
|
|
])
|
|
|
|
exporting_groups.append((group_name, inner_code_block))
|
|
|
|
return "\n".join([
|
|
template_enum_group_case.format(
|
|
group_name=group_name,
|
|
inner_group_cases=inner_code_block,
|
|
) for group_name, inner_code_block in sorted(exporting_groups, key=lambda x: x[0])
|
|
])
|
|
|
|
|
|
def main(header_output_path, source_output_path):
|
|
xml = registry_xml.RegistryXML('gl.xml', 'gl_angle_ext.xml')
|
|
|
|
# build a map from GLenum name to its value
|
|
all_gl_enums = dict()
|
|
for enums_node in xml.root.findall('enums'):
|
|
for enum in enums_node.findall('enum'):
|
|
name = enum.attrib['name']
|
|
value = int(enum.attrib['value'], base=16)
|
|
all_gl_enums[name] = value
|
|
|
|
# Parse groups of GLenums to build a {group, name} -> value mapping.
|
|
gl_enum_in_groups = dict()
|
|
enums_has_group = set()
|
|
for enums_group_node in xml.root.findall('groups/group'):
|
|
group_name = enums_group_node.attrib['name']
|
|
if group_name in exclude_gl_enum_groups:
|
|
continue
|
|
|
|
if group_name not in gl_enum_in_groups:
|
|
gl_enum_in_groups[group_name] = dict()
|
|
|
|
for enum_node in enums_group_node.findall('enum'):
|
|
enum_name = enum_node.attrib['name']
|
|
enums_has_group.add(enum_name)
|
|
gl_enum_in_groups[group_name][enum_name] = all_gl_enums[enum_name]
|
|
|
|
# Find relevant GLenums according to enabled APIs and extensions.
|
|
exporting_enums = set()
|
|
# export all the apis
|
|
xpath = "./feature[@api='gles2']/require/enum"
|
|
for enum_tag in xml.root.findall(xpath):
|
|
enum_name = enum_tag.attrib['name']
|
|
if enum_name not in exclude_gl_enums:
|
|
exporting_enums.add(enum_name)
|
|
|
|
for extension in registry_xml.supported_extensions:
|
|
xpath = "./extensions/extension[@name='%s']/require/enum" % extension
|
|
for enum_tag in xml.root.findall(xpath):
|
|
enum_name = enum_tag.attrib['name']
|
|
if enum_name not in exclude_gl_enums:
|
|
exporting_enums.add(enum_name)
|
|
|
|
# For enums that do not have a group, add them to a default group
|
|
default_group_name = registry_xml.default_enum_group_name
|
|
gl_enum_in_groups[default_group_name] = dict()
|
|
default_group = gl_enum_in_groups[default_group_name]
|
|
for enum_name in exporting_enums:
|
|
if enum_name not in enums_has_group:
|
|
default_group[enum_name] = all_gl_enums[enum_name]
|
|
|
|
# Write GLenum groups into the header file.
|
|
header_content = template_gl_enums_header.format(
|
|
script_name=os.path.basename(sys.argv[0]),
|
|
data_source_name="gl.xml and gl_angle_ext.xml",
|
|
gl_enum_groups=',\n'.join(sorted(gl_enum_in_groups.keys())))
|
|
|
|
header_output_path = registry_xml.script_relative(header_output_path)
|
|
with open(header_output_path, 'w') as f:
|
|
f.write(header_content)
|
|
|
|
# Write mapping to source file
|
|
gl_enums_value_to_string_table = dump_value_to_string_mapping(gl_enum_in_groups,
|
|
exporting_enums)
|
|
source_content = template_gl_enums_source.format(
|
|
script_name=os.path.basename(sys.argv[0]),
|
|
data_source_name="gl.xml and gl_angle_ext.xml",
|
|
gl_enums_value_to_string_table=gl_enums_value_to_string_table,
|
|
)
|
|
|
|
source_output_path = registry_xml.script_relative(source_output_path)
|
|
with open(source_output_path, 'w') as f:
|
|
f.write(source_content)
|
|
|
|
return 0
|
|
|
|
|
|
if __name__ == '__main__':
|
|
inputs = [
|
|
'gl.xml',
|
|
'gl_angle_ext.xml',
|
|
'registry_xml.py',
|
|
]
|
|
|
|
gl_enum_utils_autogen_base_path = '../src/libANGLE/capture/gl_enum_utils_autogen'
|
|
outputs = [
|
|
gl_enum_utils_autogen_base_path + '.h',
|
|
gl_enum_utils_autogen_base_path + '.cpp',
|
|
]
|
|
|
|
if len(sys.argv) > 1:
|
|
if sys.argv[1] == 'inputs':
|
|
print(','.join(inputs))
|
|
elif sys.argv[1] == 'outputs':
|
|
print(','.join(outputs))
|
|
else:
|
|
sys.exit(
|
|
main(
|
|
registry_xml.script_relative(outputs[0]),
|
|
registry_xml.script_relative(outputs[1])))
|