blob: 2f49cf9a36c07b1841e086537e67f79a6ec448c5 [file] [log] [blame]
#!/usr/bin/python3
#
# 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 difflib
import os
import sys
import xml.etree.ElementTree as etree
from enum import Enum
xml_inputs = [
'cl.xml',
'gl.xml',
'gl_angle_ext.xml',
'egl.xml',
'egl_angle_ext.xml',
'wgl.xml',
'registry_xml.py',
]
# Notes on categories of extensions:
# 'Requestable' extensions are extensions that can be enabled with ANGLE_request_extension
# 'ES-Only' extensions are always implicitly enabled.
# 'Toggleable' extensions are like 'Requestable' except they can be also disabled.
# 'ANGLE' extensions are extensions that are not yet officially upstreamed to Khronos.
# We document those extensions in gl_angle_ext.xml instead of the canonical gl.xml.
angle_toggleable_extensions = [
"GL_ANGLE_texture_rectangle",
]
angle_requestable_extensions = [
"GL_ANGLE_base_vertex_base_instance",
"GL_ANGLE_base_vertex_base_instance_shader_builtin",
"GL_ANGLE_compressed_texture_etc",
"GL_ANGLE_copy_texture_3d",
"GL_ANGLE_framebuffer_multisample",
"GL_ANGLE_get_image",
"GL_ANGLE_get_tex_level_parameter",
"GL_ANGLE_lossy_etc_decode",
"GL_ANGLE_memory_object_flags",
"GL_ANGLE_memory_object_fuchsia",
"GL_ANGLE_memory_size",
"GL_ANGLE_multi_draw",
"GL_ANGLE_multiview_multisample",
"GL_ANGLE_provoking_vertex",
"GL_ANGLE_read_only_depth_stencil_feedback_loops",
"GL_ANGLE_robust_fragment_shader_output",
"GL_ANGLE_semaphore_fuchsia",
"GL_ANGLE_texture_compression_dxt3",
"GL_ANGLE_texture_compression_dxt5",
"GL_ANGLE_texture_external_update",
"GL_ANGLE_texture_multisample",
"GL_ANGLE_vulkan_image",
"GL_ANGLE_yuv_internal_format",
"GL_CHROMIUM_color_buffer_float_rgb",
"GL_CHROMIUM_color_buffer_float_rgba",
"GL_CHROMIUM_lose_context",
"GL_CHROMIUM_sync_query",
"GL_CHROMIUM_texture_filtering_hint",
]
gles_requestable_extensions = [
"GL_ANGLE_framebuffer_blit",
"GL_ANGLE_instanced_arrays",
"GL_ANGLE_pack_reverse_row_order",
"GL_ANGLE_texture_usage",
"GL_APPLE_clip_distance",
"GL_ARB_sync",
"GL_EXT_base_instance",
"GL_EXT_blend_func_extended",
"GL_EXT_blend_minmax",
"GL_EXT_buffer_storage",
"GL_EXT_clip_control",
"GL_EXT_clip_cull_distance",
"GL_EXT_color_buffer_float",
"GL_EXT_color_buffer_half_float",
"GL_EXT_compressed_ETC1_RGB8_sub_texture",
"GL_EXT_copy_image",
"GL_EXT_disjoint_timer_query",
"GL_EXT_draw_buffers",
"GL_EXT_draw_buffers_indexed",
"GL_EXT_draw_elements_base_vertex",
"GL_EXT_EGL_image_array",
"GL_EXT_EGL_image_external_wrap_modes",
"GL_EXT_EGL_image_storage",
"GL_EXT_external_buffer",
"GL_EXT_float_blend",
"GL_EXT_frag_depth",
"GL_EXT_geometry_shader",
"GL_EXT_gpu_shader5",
"GL_EXT_instanced_arrays",
"GL_EXT_map_buffer_range",
"GL_EXT_memory_object",
"GL_EXT_memory_object_fd",
"GL_EXT_multi_draw_indirect",
"GL_EXT_multisampled_render_to_texture",
"GL_EXT_multisampled_render_to_texture2",
"GL_EXT_occlusion_query_boolean",
"GL_EXT_protected_textures",
"GL_EXT_pvrtc_sRGB",
"GL_EXT_read_format_bgra",
"GL_EXT_semaphore",
"GL_EXT_semaphore_fd",
"GL_EXT_separate_shader_objects",
"GL_EXT_shader_framebuffer_fetch",
"GL_EXT_shader_framebuffer_fetch_non_coherent",
"GL_EXT_shader_io_blocks",
"GL_EXT_shader_non_constant_global_initializers",
"GL_EXT_shader_texture_lod",
"GL_EXT_shadow_samplers",
"GL_EXT_sRGB",
"GL_EXT_tessellation_shader",
"GL_EXT_texture_border_clamp",
"GL_EXT_texture_buffer",
"GL_EXT_texture_compression_bptc",
"GL_EXT_texture_compression_dxt1",
"GL_EXT_texture_compression_rgtc",
"GL_EXT_texture_compression_s3tc",
"GL_EXT_texture_compression_s3tc_srgb",
"GL_EXT_texture_cube_map_array",
"GL_EXT_texture_filter_anisotropic",
"GL_EXT_texture_format_BGRA8888",
"GL_EXT_texture_norm16",
"GL_EXT_texture_rg",
"GL_EXT_texture_sRGB_R8",
"GL_EXT_texture_sRGB_RG8",
"GL_EXT_texture_storage",
"GL_EXT_texture_type_2_10_10_10_REV",
"GL_EXT_unpack_subimage",
"GL_EXT_YUV_target",
"GL_IMG_texture_compression_pvrtc",
"GL_IMG_texture_compression_pvrtc2",
"GL_KHR_parallel_shader_compile",
"GL_KHR_texture_compression_astc_hdr",
"GL_KHR_texture_compression_astc_ldr",
"GL_KHR_texture_compression_astc_sliced_3d",
"GL_MESA_framebuffer_flip_y",
"GL_NV_depth_buffer_float2",
"GL_NV_EGL_stream_consumer_external",
"GL_NV_framebuffer_blit",
"GL_NV_pack_subimage",
"GL_NV_pixel_buffer_object",
"GL_NV_read_depth",
"GL_NV_read_depth_stencil",
"GL_NV_read_stencil",
"GL_NV_shader_noperspective_interpolation",
"GL_OES_compressed_EAC_R11_signed_texture",
"GL_OES_compressed_EAC_R11_unsigned_texture",
"GL_OES_compressed_EAC_RG11_signed_texture",
"GL_OES_compressed_EAC_RG11_unsigned_texture",
"GL_OES_compressed_ETC1_RGB8_texture",
"GL_OES_compressed_ETC2_punchthroughA_RGBA8_texture",
"GL_OES_compressed_ETC2_punchthroughA_sRGB8_alpha_texture",
"GL_OES_compressed_ETC2_RGB8_texture",
"GL_OES_compressed_ETC2_RGBA8_texture",
"GL_OES_compressed_ETC2_sRGB8_alpha8_texture",
"GL_OES_compressed_ETC2_sRGB8_texture",
"GL_OES_copy_image",
"GL_OES_depth_texture_cube_map",
"GL_OES_draw_buffers_indexed",
"GL_OES_draw_elements_base_vertex",
"GL_OES_EGL_image",
"GL_OES_EGL_image_external",
"GL_OES_EGL_image_external_essl3",
"GL_OES_element_index_uint",
"GL_OES_fbo_render_mipmap",
"GL_OES_geometry_shader",
"GL_OES_get_program_binary",
"GL_OES_mapbuffer",
"GL_OES_rgb8_rgba8",
"GL_OES_sample_shading",
"GL_OES_sample_variables",
"GL_OES_shader_image_atomic",
"GL_OES_shader_io_blocks",
"GL_OES_shader_multisample_interpolation",
"GL_OES_standard_derivatives",
"GL_OES_texture_3D",
"GL_OES_texture_border_clamp",
"GL_OES_texture_buffer",
"GL_OES_texture_compression_astc",
"GL_OES_texture_cube_map_array",
"GL_OES_texture_float",
"GL_OES_texture_float_linear",
"GL_OES_texture_half_float",
"GL_OES_texture_half_float_linear",
"GL_OES_texture_npot",
"GL_OES_texture_stencil8",
"GL_OES_texture_storage_multisample_2d_array",
"GL_OES_vertex_array_object",
"GL_OES_vertex_half_float",
"GL_OES_vertex_type_10_10_10_2",
"GL_OVR_multiview",
"GL_OVR_multiview2",
"GL_QCOM_shading_rate",
"GL_WEBGL_video_texture",
]
angle_es_only_extensions = [
"GL_ANGLE_client_arrays",
"GL_ANGLE_get_serialized_context_string",
"GL_ANGLE_program_binary",
"GL_ANGLE_program_cache_control",
"GL_ANGLE_relaxed_vertex_attribute_type",
"GL_ANGLE_request_extension",
"GL_ANGLE_rgbx_internal_format",
"GL_ANGLE_robust_client_memory",
"GL_ANGLE_robust_resource_initialization",
"GL_ANGLE_webgl_compatibility",
"GL_CHROMIUM_bind_generates_resource",
"GL_CHROMIUM_bind_uniform_location",
"GL_CHROMIUM_copy_compressed_texture",
"GL_CHROMIUM_copy_texture",
"GL_CHROMIUM_framebuffer_mixed_samples",
]
gles_es_only_extensions = [
"GL_AMD_performance_monitor",
"GL_ANDROID_extension_pack_es31a",
"GL_ANGLE_depth_texture",
"GL_ANGLE_translated_shader_source",
"GL_EXT_debug_label",
"GL_EXT_debug_marker",
"GL_EXT_discard_framebuffer",
"GL_EXT_multisample_compatibility",
"GL_EXT_primitive_bounding_box",
"GL_EXT_robustness",
"GL_EXT_sRGB_write_control",
"GL_EXT_texture_format_sRGB_override",
"GL_EXT_texture_sRGB_decode",
"GL_KHR_blend_equation_advanced",
"GL_KHR_debug",
"GL_KHR_no_error",
"GL_KHR_robust_buffer_access_behavior",
"GL_NV_fence",
"GL_NV_robustness_video_memory_purge",
"GL_OES_depth24",
"GL_OES_depth32",
"GL_OES_depth_texture",
"GL_OES_EGL_sync",
"GL_OES_packed_depth_stencil",
"GL_OES_primitive_bounding_box",
"GL_OES_surfaceless_context",
]
# ES1 (Possibly the min set of extensions needed by Android)
gles1_extensions = [
"GL_OES_draw_texture",
"GL_OES_framebuffer_object",
"GL_OES_matrix_palette",
"GL_OES_point_size_array",
"GL_OES_point_sprite",
"GL_OES_query_matrix",
"GL_OES_texture_cube_map",
]
def check_sorted(name, l):
unidiff = difflib.unified_diff(l, sorted(l, key=str.casefold), 'unsorted', 'sorted')
diff_lines = list(unidiff)
assert not diff_lines, '\n\nPlease sort "%s":\n%s' % (name, '\n'.join(diff_lines))
angle_extensions = angle_requestable_extensions + angle_es_only_extensions + angle_toggleable_extensions
gles_extensions = gles_requestable_extensions + gles_es_only_extensions
supported_extensions = sorted(angle_extensions + gles1_extensions + gles_extensions)
assert len(supported_extensions) == len(set(supported_extensions)), 'Duplicates in extension list'
check_sorted('angle_requestable_extensions', angle_requestable_extensions)
check_sorted('angle_es_only_extensions', angle_es_only_extensions)
check_sorted('angle_toggleable_extensions', angle_toggleable_extensions)
check_sorted('gles_requestable_extensions', gles_requestable_extensions)
check_sorted('gles_es_only_extensions', gles_es_only_extensions)
check_sorted('gles_extensions', gles1_extensions)
supported_egl_extensions = [
"EGL_ANDROID_blob_cache",
"EGL_ANDROID_create_native_client_buffer",
"EGL_ANDROID_framebuffer_target",
"EGL_ANDROID_get_frame_timestamps",
"EGL_ANDROID_get_native_client_buffer",
"EGL_ANDROID_native_fence_sync",
"EGL_ANDROID_presentation_time",
"EGL_ANGLE_create_surface_swap_interval",
"EGL_ANGLE_d3d_share_handle_client_buffer",
"EGL_ANGLE_device_creation",
"EGL_ANGLE_device_d3d",
"EGL_ANGLE_display_semaphore_share_group",
"EGL_ANGLE_display_texture_share_group",
"EGL_ANGLE_feature_control",
"EGL_ANGLE_ggp_stream_descriptor",
"EGL_ANGLE_metal_create_context_ownership_identity",
"EGL_ANGLE_power_preference",
"EGL_ANGLE_prepare_swap_buffers",
"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_swap_with_frame_token",
"EGL_ANGLE_sync_control_rate",
"EGL_ANGLE_vulkan_image",
"EGL_ANGLE_window_fixed_size",
"EGL_CHROMIUM_sync_control",
"EGL_EXT_create_context_robustness",
"EGL_EXT_device_query",
"EGL_EXT_gl_colorspace_display_p3",
"EGL_EXT_gl_colorspace_display_p3_linear",
"EGL_EXT_gl_colorspace_display_p3_passthrough",
"EGL_EXT_gl_colorspace_scrgb",
"EGL_EXT_gl_colorspace_scrgb_linear",
"EGL_EXT_image_dma_buf_import",
"EGL_EXT_image_dma_buf_import_modifiers",
"EGL_EXT_image_gl_colorspace",
"EGL_EXT_pixel_format_float",
"EGL_EXT_platform_base",
"EGL_EXT_platform_device",
"EGL_EXT_protected_content",
"EGL_IMG_context_priority",
"EGL_KHR_debug",
"EGL_KHR_fence_sync",
"EGL_KHR_gl_colorspace",
"EGL_KHR_image",
"EGL_KHR_lock_surface3",
"EGL_KHR_mutable_render_buffer",
"EGL_KHR_no_config_context",
"EGL_KHR_partial_update",
"EGL_KHR_reusable_sync",
"EGL_KHR_stream",
"EGL_KHR_stream_consumer_gltexture",
"EGL_KHR_surfaceless_context",
"EGL_KHR_swap_buffers_with_damage",
"EGL_KHR_wait_sync",
"EGL_NV_post_sub_buffer",
"EGL_NV_stream_consumer_gltexture_yuv",
]
check_sorted('supported_egl_extensions', supported_egl_extensions)
supported_cl_extensions = [
# Since OpenCL 1.1
"cl_khr_byte_addressable_store",
"cl_khr_global_int32_base_atomics",
"cl_khr_global_int32_extended_atomics",
"cl_khr_local_int32_base_atomics",
"cl_khr_local_int32_extended_atomics",
# OpenCL 2.0 - 2.2
"cl_khr_3d_image_writes",
"cl_khr_depth_images",
"cl_khr_image2d_from_buffer",
# Optional
"cl_khr_extended_versioning",
"cl_khr_fp64",
"cl_khr_icd",
"cl_khr_int64_base_atomics",
"cl_khr_int64_extended_atomics",
]
# Strip these suffixes from Context entry point names. NV is excluded (for now).
strip_suffixes = ["AMD", "ANDROID", "ANGLE", "CHROMIUM", "EXT", "KHR", "OES", "OVR"]
check_sorted('strip_suffixes', strip_suffixes)
# The EGL_ANGLE_explicit_context extension is generated differently from other extensions.
# Toggle generation here.
support_EGL_ANGLE_explicit_context = True
# For ungrouped GLenum types
default_enum_group_name = "DefaultGroup"
# Group names that appear in command/param, but not present in groups/group
unsupported_enum_group_names = {
'GetMultisamplePNameNV',
'BufferPNameARB',
'BufferPointerNameARB',
'VertexAttribPointerPropertyARB',
'VertexAttribPropertyARB',
'FenceParameterNameNV',
'FenceConditionNV',
'BufferPointerNameARB',
'MatrixIndexPointerTypeARB',
'PointParameterNameARB',
'ClampColorTargetARB',
'ClampColorModeARB',
}
# Versions (major, minor). Note that GLES intentionally places 1.0 last.
DESKTOP_GL_VERSIONS = [(1, 0), (1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (2, 0), (2, 1), (3, 0),
(3, 1), (3, 2), (3, 3), (4, 0), (4, 1), (4, 2), (4, 3), (4, 4), (4, 5),
(4, 6)]
GLES_VERSIONS = [(2, 0), (3, 0), (3, 1), (3, 2), (1, 0)]
EGL_VERSIONS = [(1, 0), (1, 1), (1, 2), (1, 3), (1, 4), (1, 5)]
WGL_VERSIONS = [(1, 0)]
CL_VERSIONS = [(1, 0), (1, 1), (1, 2), (2, 0), (2, 1), (2, 2), (3, 0)]
# API types
class apis:
GL = 'GL'
GLES = 'GLES'
WGL = 'WGL'
EGL = 'EGL'
CL = 'CL'
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)
def strip_api_prefix(cmd_name):
return cmd_name.lstrip("cwegl")
def get_cmd_name(command_node):
proto = command_node.find('proto')
cmd_name = proto.find('name').text
return cmd_name
class CommandNames:
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.items()):
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 = CommandNames()
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)
insertion_point = self.root
for enums in angle_ext_root.iter('enums'):
insertion_point.append(enums)
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, extension):
supported = extension.attrib['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'
elif 'cl' in supported:
return 'clext'
else:
assert False, 'Cannot classify support for %s: %s' % (extension.attrib['name'],
supported)
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)
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.items()):
# 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)
class EntryPoints:
def __init__(self, api, xml, commands):
self.api = api
self._cmd_info = []
for command_node in xml.all_commands:
cmd_name = get_cmd_name(command_node)
if api == apis.WGL:
cmd_name = cmd_name if cmd_name[:3] == 'wgl' else 'wgl' + cmd_name
if cmd_name not in commands:
continue
param_text = ["".join(param.itertext()) for param in command_node.findall('param')]
# Treat (void) as ()
if len(param_text) == 1 and param_text[0].strip() == 'void':
param_text = []
proto = command_node.find('proto')
proto_text = "".join(proto.itertext())
self._cmd_info.append((cmd_name, command_node, param_text, proto_text))
def get_infos(self):
return self._cmd_info