blob: 56f85a6d7d27c75d7dfbb856336e524939acc3e6 [file] [log] [blame]
#!/usr/bin/python2
#
# Copyright 2018 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.
#
# registry_xml.py:
# Parses information from Khronos registry files..
# List of supported extensions. Add to this list to enable new extensions
# available in gl.xml.
import sys, os
import xml.etree.ElementTree as etree
angle_extensions = [
# ANGLE extensions
"GL_CHROMIUM_bind_uniform_location",
"GL_CHROMIUM_framebuffer_mixed_samples",
"GL_CHROMIUM_path_rendering",
"GL_CHROMIUM_copy_texture",
"GL_CHROMIUM_copy_compressed_texture",
"GL_CHROMIUM_lose_context",
"GL_ANGLE_request_extension",
"GL_ANGLE_robust_client_memory",
"GL_ANGLE_copy_texture_3d",
]
gles1_extensions = [
# ES1 (Possibly the min set of extensions needed by Android)
"GL_OES_draw_texture",
"GL_OES_framebuffer_object",
"GL_OES_matrix_palette",
"GL_OES_point_size_array",
"GL_OES_query_matrix",
"GL_OES_texture_cube_map",
]
supported_extensions = sorted(angle_extensions + gles1_extensions + [
# ES2+
"GL_ANGLE_framebuffer_blit",
"GL_ANGLE_framebuffer_multisample",
"GL_ANGLE_instanced_arrays",
"GL_ANGLE_provoking_vertex",
"GL_ANGLE_texture_multisample",
"GL_ANGLE_translated_shader_source",
"GL_EXT_blend_func_extended",
"GL_EXT_debug_marker",
"GL_EXT_discard_framebuffer",
"GL_EXT_disjoint_timer_query",
"GL_EXT_draw_buffers",
"GL_EXT_geometry_shader",
"GL_EXT_instanced_arrays",
"GL_EXT_map_buffer_range",
"GL_EXT_memory_object",
"GL_EXT_memory_object_fd",
"GL_EXT_occlusion_query_boolean",
"GL_EXT_robustness",
"GL_EXT_semaphore",
"GL_EXT_semaphore_fd",
"GL_EXT_texture_storage",
"GL_KHR_debug",
"GL_NV_fence",
"GL_OES_EGL_image",
"GL_OES_get_program_binary",
"GL_OES_mapbuffer",
"GL_OES_texture_border_clamp",
"GL_OES_texture_storage_multisample_2d_array",
"GL_OES_vertex_array_object",
"GL_OVR_multiview",
"GL_OVR_multiview2",
"GL_KHR_parallel_shader_compile",
"GL_ANGLE_multi_draw",
])
supported_egl_extensions = [
"EGL_ANDROID_blob_cache",
"EGL_ANDROID_get_frame_timestamps",
"EGL_ANDROID_presentation_time",
"EGL_ANGLE_d3d_share_handle_client_buffer",
"EGL_ANGLE_device_creation",
"EGL_ANGLE_device_d3d",
"EGL_ANGLE_program_cache_control",
"EGL_ANGLE_query_surface_pointer",
"EGL_ANGLE_stream_producer_d3d_texture",
"EGL_ANGLE_surface_d3d_texture_2d_share_handle",
"EGL_ANGLE_window_fixed_size",
"EGL_CHROMIUM_get_sync_values",
"EGL_EXT_create_context_robustness",
"EGL_EXT_device_query",
"EGL_EXT_platform_base",
"EGL_EXT_platform_device",
"EGL_KHR_debug",
"EGL_KHR_fence_sync",
"EGL_KHR_image",
"EGL_KHR_stream",
"EGL_KHR_stream_consumer_gltexture",
"EGL_KHR_swap_buffers_with_damage",
"EGL_KHR_wait_sync",
"EGL_NV_post_sub_buffer",
"EGL_NV_stream_consumer_gltexture_yuv",
]
# Strip these suffixes from Context entry point names. NV is excluded (for now).
strip_suffixes = ["ANGLE", "EXT", "KHR", "OES", "CHROMIUM"]
# The EGL_ANGLE_explicit_context extension is generated differently from other extensions.
# Toggle generation here.
support_EGL_ANGLE_explicit_context = True
def script_relative(path):
return os.path.join(os.path.dirname(sys.argv[0]), path)
def path_to(folder, file):
return os.path.join(script_relative(".."), "src", folder, file)
class GLCommandNames:
def __init__(self):
self.command_names = {}
def get_commands(self, version):
return self.command_names[version]
def get_all_commands(self):
cmd_names = []
# Combine all the version lists into a single list
for version, version_cmd_names in sorted(self.command_names.iteritems()):
cmd_names += version_cmd_names
return cmd_names
def add_commands(self, version, commands):
# Add key if it doesn't exist
if version not in self.command_names:
self.command_names[version] = []
# Add the commands that aren't duplicates
self.command_names[version] += commands
class RegistryXML:
def __init__(self, xml_file, ext_file = None):
tree = etree.parse(script_relative(xml_file))
self.root = tree.getroot()
if (ext_file):
self._AppendANGLEExts(ext_file)
self.all_commands = self.root.findall('commands/command')
self.all_cmd_names = GLCommandNames()
self.commands = {}
def _AppendANGLEExts(self, ext_file):
angle_ext_tree = etree.parse(script_relative(ext_file))
angle_ext_root = angle_ext_tree.getroot()
insertion_point = self.root.findall("./commands")[0]
for command in angle_ext_root.iter('commands'):
insertion_point.extend(command)
insertion_point = self.root.findall("./extensions")[0]
for extension in angle_ext_root.iter('extensions'):
insertion_point.extend(extension)
def AddCommands(self, feature_name, annotation):
xpath = ".//feature[@name='%s']//command" % feature_name
commands = [cmd.attrib['name'] for cmd in self.root.findall(xpath)]
# Remove commands that have already been processed
current_cmds = self.all_cmd_names.get_all_commands()
commands = [cmd for cmd in commands if cmd not in current_cmds]
self.all_cmd_names.add_commands(annotation, commands)
self.commands[annotation] = commands
def _ClassifySupport(self, supported):
if 'gles2' in supported:
return 'gl2ext'
elif 'gles1' in supported:
return 'glext'
elif 'egl' in supported:
return 'eglext'
elif 'wgl' in supported:
return 'wglext'
else:
assert False
return 'unknown'
def AddExtensionCommands(self, supported_extensions, apis):
# Use a first step to run through the extensions so we can generate them
# in sorted order.
self.ext_data = {}
self.ext_dupes = {}
ext_annotations = {}
for extension in self.root.findall("extensions/extension"):
extension_name = extension.attrib['name']
if not extension_name in supported_extensions:
continue
ext_annotations[extension_name] = self._ClassifySupport(extension.attrib['supported'])
ext_cmd_names = []
# There's an extra step here to filter out 'api=gl' extensions. This
# is necessary for handling KHR extensions, which have separate entry
# point signatures (without the suffix) for desktop GL. Note that this
# extra step is necessary because of Etree's limited Xpath support.
for require in extension.findall('require'):
if 'api' in require.attrib and require.attrib['api'] not in apis:
continue
# A special case for EXT_texture_storage
filter_out_comment = "Supported only if GL_EXT_direct_state_access is supported"
if 'comment' in require.attrib and require.attrib['comment'] == filter_out_comment:
continue
extension_commands = require.findall('command')
ext_cmd_names += [command.attrib['name'] for command in extension_commands]
self.ext_data[extension_name] = sorted(ext_cmd_names)
for extension_name, ext_cmd_names in sorted(self.ext_data.iteritems()):
# Detect and filter duplicate extensions.
dupes = []
for ext_cmd in ext_cmd_names:
if ext_cmd in self.all_cmd_names.get_all_commands():
dupes.append(ext_cmd)
for dupe in dupes:
ext_cmd_names.remove(dupe)
self.ext_data[extension_name] = sorted(ext_cmd_names)
self.ext_dupes[extension_name] = dupes
self.all_cmd_names.add_commands(ext_annotations[extension_name], ext_cmd_names)