gen_proc_table.py

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Author : Lubosz Sarnecki
Date : 2021-02-11 16:12:48
Hash : 37752956
Message : Generators: Use fixed year in license headers. Remove dynamic year generation from generator scripts, as required by the Chromium C++ style guide. The dynamic year values were replaced by the current year at the time the file was created according to git log. The code to dynamically generate the year was removed. This patch also refreshes generated files and hashes. Bug: angleproject:5516 Change-Id: I735028bccb5c83217e92c380538f1abf0a906b2c Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2690950 Commit-Queue: Lubosz Sarnecki <lubosz.sarnecki@collabora.com> Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>

scripts/gen_proc_table.py

#!/usr/bin/python3
# Copyright 2017 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_proc_table.py:
#  Code generation for entry point loading tables.
#  NOTE: don't run this script directly. Run scripts/run_code_generation.py.

import sys
import registry_xml

out_file_name_gles = "../src/libGLESv2/proc_table_egl_autogen.cpp"
out_file_name_gl = "../src/libGL/proc_table_wgl_autogen.cpp"

# The EGL_ANGLE_explicit_context extension is generated differently from other extensions.
# Toggle generation here.
# Only for GLES
support_egl_ANGLE_explicit_context = True

strip_suffixes = ["ANGLE", "EXT", "KHR", "OES", "CHROMIUM", "OVR"]

template_cpp = """// 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.
//
// getProcAddress loader table:
//   Mapping from a string entry point name to function address.
//

{includes}
#define P(FUNC) reinterpret_cast<{cast}>(FUNC)

namespace {namespace}
{{
const ProcEntry g_procTable[] = {{
{proc_data}
}};

const size_t g_numProcs = {num_procs};
}}  // namespace {namespace}
"""

includes_gles = """#include "libGLESv2/proc_table_egl.h"

#include "libGLESv2/entry_points_egl_autogen.h"
#include "libGLESv2/entry_points_egl_ext_autogen.h"
#include "libGLESv2/entry_points_gles_1_0_autogen.h"
#include "libGLESv2/entry_points_gles_2_0_autogen.h"
#include "libGLESv2/entry_points_gles_3_0_autogen.h"
#include "libGLESv2/entry_points_gles_3_1_autogen.h"
#include "libGLESv2/entry_points_gles_3_2_autogen.h"
#include "libGLESv2/entry_points_gles_ext_autogen.h"
#include "platform/PlatformMethods.h"
"""

includes_gl = """#include "libGL/proc_table_wgl.h"

#include "libGL/entry_points_wgl.h"
#include "libGL/entry_points_gl_1_autogen.h"
#include "libGL/entry_points_gl_2_autogen.h"
#include "libGL/entry_points_gl_3_autogen.h"
#include "libGL/entry_points_gl_4_autogen.h"
#include "platform/PlatformMethods.h"
"""

sys.path.append('../src/libANGLE/renderer')
import angle_format


def _get_annotations(versions):
    return ["%d_%d" % version for version in versions]


def main():

    # auto_script parameters.
    if len(sys.argv) > 1:
        inputs = [source for source in registry_xml.xml_inputs]
        outputs = [out_file_name_gles, out_file_name_gl]
        if sys.argv[1] == 'inputs':
            print(','.join(inputs))
        elif sys.argv[1] == 'outputs':
            print(','.join(outputs))
        else:
            print('Invalid script parameters')
            return 1
        return 0

    glesxml = registry_xml.RegistryXML('gl.xml', 'gl_angle_ext.xml')

    for annotation in _get_annotations(registry_xml.GLES_VERSIONS):
        name_prefix = "GL_ES_VERSION_"
        if annotation[0] == '1':
            name_prefix = "GL_VERSION_ES_CM_"
        feature_name = "{}{}".format(name_prefix, annotation)
        glesxml.AddCommands(feature_name, annotation)

    glesxml.AddExtensionCommands(registry_xml.supported_extensions, ['gles2', 'gles1'])

    # Also don't add GLES extension commands to libGL proc table
    extension_commands = []
    for extension_name, ext_cmd_names in sorted(glesxml.ext_data.items()):
        extension_commands.extend(glesxml.ext_data[extension_name])
    for name in extension_commands:
        name_no_suffix = name
        for suffix in strip_suffixes:
            if name_no_suffix.endswith(suffix):
                name_no_suffix = name_no_suffix[0:-len(suffix)]

    gles_data = glesxml.all_cmd_names.get_all_commands()

    eglxml = registry_xml.RegistryXML('egl.xml', 'egl_angle_ext.xml')

    for annotation in _get_annotations(registry_xml.EGL_VERSIONS):
        name_prefix = "EGL_VERSION_"
        feature_name = "{}{}".format(name_prefix, annotation)
        eglxml.AddCommands(feature_name, annotation)

    eglxml.AddExtensionCommands(registry_xml.supported_egl_extensions, ['gles2', 'gles1'])

    gles_data.extend(eglxml.all_cmd_names.get_all_commands())

    gles_data.append("ANGLEGetDisplayPlatform")
    gles_data.append("ANGLEResetDisplayPlatform")

    all_functions = {}

    for function in gles_data:
        if function.startswith("gl"):
            all_functions[function] = "GL_" + function[2:]
            # Special handling for EGL_ANGLE_explicit_context extension
            if support_egl_ANGLE_explicit_context:
                all_functions[function + "ContextANGLE"] = "GL_" + function[2:] + "ContextANGLE"
        elif function.startswith("egl"):
            all_functions[function] = "EGL_" + function[3:]
        else:
            all_functions[function] = function

    proc_data = [('    {"%s", P(%s)}' % (func, angle_func))
                 for func, angle_func in sorted(all_functions.items())]

    with open(out_file_name_gles, 'w') as out_file:
        output_cpp = template_cpp.format(
            script_name=sys.argv[0],
            data_source_name="gl.xml, gl_angle_ext.xml, egl.xml, egl_angle_ext.xml",
            includes=includes_gles,
            cast="__eglMustCastToProperFunctionPointerType",
            namespace="egl",
            proc_data=",\n".join(proc_data),
            num_procs=len(proc_data))
        out_file.write(output_cpp)
        out_file.close()

    # libGL proc table
    glxml = registry_xml.RegistryXML('gl.xml')

    for annotation in _get_annotations(registry_xml.DESKTOP_GL_VERSIONS):
        name_prefix = "GL_VERSION_"
        feature_name = "{}{}".format(name_prefix, annotation)
        glxml.AddCommands(feature_name, annotation)

    gl_data = [cmd for cmd in glxml.all_cmd_names.get_all_commands()]

    wglxml = registry_xml.RegistryXML('wgl.xml')

    for annotation in _get_annotations(registry_xml.WGL_VERSIONS):
        name_prefix = "WGL_VERSION_"
        feature_name = "{}{}".format(name_prefix, annotation)
        wglxml.AddCommands(feature_name, annotation)

    gl_commands = wglxml.all_cmd_names.get_all_commands()
    gl_data.extend([cmd if cmd[:3] == 'wgl' else 'wgl' + cmd for cmd in gl_commands])

    all_functions = {}

    for function in gl_data:
        if function.startswith("gl"):
            all_functions[function] = "GL_" + function[2:]
        else:
            all_functions[function] = function

    proc_data = [('    {"%s", P(%s)}' % (func, angle_func))
                 for func, angle_func in sorted(all_functions.items())]

    with open(out_file_name_gl, 'w') as out_file:
        output_cpp = template_cpp.format(
            script_name=sys.argv[0],
            data_source_name="gl.xml, wgl.xml",
            includes=includes_gl,
            cast="PROC",
            namespace="wgl",
            proc_data=",\n".join(proc_data),
            num_procs=len(proc_data))
        out_file.write(output_cpp)
        out_file.close()
    return 0


if __name__ == '__main__':
    sys.exit(main())

kc3-lang/angle/scripts/gen_proc_table.py

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kc3-lang/angle /scripts/gen_proc_table.py