зеркало из https://github.com/AvaloniaUI/angle.git
312 строки
10 KiB
Python
312 строки
10 KiB
Python
#!/usr/bin/python2
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#
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# Copyright 2018 The ANGLE Project Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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#
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# registry_xml.py:
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# Parses information from Khronos registry files..
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# List of supported extensions. Add to this list to enable new extensions
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# available in gl.xml.
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import sys
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import os
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import xml.etree.ElementTree as etree
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xml_inputs = [
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'gl.xml',
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'gl_angle_ext.xml',
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'egl.xml',
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'egl_angle_ext.xml',
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'wgl.xml',
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'registry_xml.py',
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]
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angle_extensions = [
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# ANGLE extensions
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"GL_CHROMIUM_bind_uniform_location",
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"GL_CHROMIUM_framebuffer_mixed_samples",
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"GL_CHROMIUM_path_rendering",
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"GL_CHROMIUM_copy_texture",
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"GL_CHROMIUM_copy_compressed_texture",
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"GL_CHROMIUM_lose_context",
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"GL_ANGLE_copy_texture_3d",
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"GL_ANGLE_get_image",
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"GL_ANGLE_program_binary",
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"GL_ANGLE_request_extension",
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"GL_ANGLE_robust_client_memory",
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"GL_ANGLE_texture_external_update",
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]
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gles1_extensions = [
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# ES1 (Possibly the min set of extensions needed by Android)
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"GL_OES_draw_texture",
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"GL_OES_framebuffer_object",
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"GL_OES_matrix_palette",
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"GL_OES_point_size_array",
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"GL_OES_query_matrix",
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"GL_OES_texture_cube_map",
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]
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gles_extensions = [
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# ES2+
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"GL_ANGLE_base_vertex_base_instance",
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"GL_ANGLE_framebuffer_blit",
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"GL_ANGLE_framebuffer_multisample",
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"GL_ANGLE_instanced_arrays",
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"GL_ANGLE_memory_object_fuchsia",
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"GL_ANGLE_multi_draw",
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"GL_ANGLE_provoking_vertex",
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"GL_ANGLE_semaphore_fuchsia",
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"GL_ANGLE_texture_multisample",
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"GL_ANGLE_translated_shader_source",
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"GL_EXT_blend_func_extended",
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"GL_EXT_debug_marker",
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"GL_EXT_discard_framebuffer",
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"GL_EXT_disjoint_timer_query",
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"GL_EXT_draw_buffers",
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"GL_EXT_draw_elements_base_vertex",
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"GL_EXT_geometry_shader",
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"GL_EXT_instanced_arrays",
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"GL_EXT_map_buffer_range",
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"GL_EXT_memory_object",
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"GL_EXT_memory_object_fd",
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"GL_EXT_multisampled_render_to_texture",
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"GL_EXT_occlusion_query_boolean",
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"GL_EXT_read_format_bgra",
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"GL_EXT_robustness",
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"GL_EXT_semaphore",
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"GL_EXT_semaphore_fd",
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"GL_EXT_sRGB",
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"GL_EXT_texture_compression_bptc",
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"GL_EXT_texture_compression_dxt1",
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"GL_EXT_texture_compression_rgtc",
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"GL_EXT_texture_compression_s3tc",
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"GL_EXT_texture_compression_s3tc_srgb",
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"GL_EXT_texture_filter_anisotropic",
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"GL_EXT_texture_format_BGRA8888",
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"GL_EXT_texture_storage",
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"GL_KHR_debug",
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"GL_KHR_parallel_shader_compile",
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"GL_NV_fence",
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"GL_OES_compressed_ETC1_RGB8_texture",
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"GL_OES_depth32",
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"GL_OES_draw_elements_base_vertex",
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"GL_OES_EGL_image",
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"GL_OES_get_program_binary",
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"GL_OES_mapbuffer",
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"GL_OES_texture_3D",
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"GL_OES_texture_border_clamp",
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"GL_OES_texture_half_float",
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"GL_OES_texture_storage_multisample_2d_array",
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"GL_OES_vertex_array_object",
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"GL_OVR_multiview",
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"GL_OVR_multiview2",
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]
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supported_extensions = sorted(angle_extensions + gles1_extensions + gles_extensions)
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supported_egl_extensions = [
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"EGL_ANDROID_blob_cache",
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"EGL_ANDROID_framebuffer_target",
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"EGL_ANDROID_get_frame_timestamps",
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"EGL_ANDROID_get_native_client_buffer",
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"EGL_ANDROID_native_fence_sync",
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"EGL_ANDROID_presentation_time",
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"EGL_ANGLE_d3d_share_handle_client_buffer",
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"EGL_ANGLE_device_creation",
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"EGL_ANGLE_device_d3d",
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"EGL_ANGLE_feature_control",
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"EGL_ANGLE_ggp_stream_descriptor",
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"EGL_ANGLE_program_cache_control",
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"EGL_ANGLE_query_surface_pointer",
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"EGL_ANGLE_stream_producer_d3d_texture",
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"EGL_ANGLE_surface_d3d_texture_2d_share_handle",
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"EGL_ANGLE_swap_with_frame_token",
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"EGL_ANGLE_window_fixed_size",
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"EGL_CHROMIUM_sync_control",
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"EGL_EXT_create_context_robustness",
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"EGL_EXT_device_query",
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"EGL_EXT_pixel_format_float",
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"EGL_EXT_platform_base",
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"EGL_EXT_platform_device",
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"EGL_IMG_context_priority",
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"EGL_KHR_debug",
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"EGL_KHR_fence_sync",
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"EGL_KHR_gl_colorspace",
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"EGL_EXT_gl_colorspace_display_p3",
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"EGL_EXT_gl_colorspace_display_p3_linear",
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"EGL_EXT_gl_colorspace_display_p3_passthrough",
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"EGL_EXT_gl_colorspace_scrgb",
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"EGL_EXT_gl_colorspace_scrgb_linear",
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"EGL_KHR_image",
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"EGL_KHR_no_config_context",
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"EGL_KHR_stream",
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"EGL_KHR_stream_consumer_gltexture",
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"EGL_KHR_surfaceless_context",
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"EGL_KHR_swap_buffers_with_damage",
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"EGL_KHR_wait_sync",
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"EGL_NV_post_sub_buffer",
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"EGL_NV_stream_consumer_gltexture_yuv",
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]
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# Strip these suffixes from Context entry point names. NV is excluded (for now).
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strip_suffixes = ["ANGLE", "EXT", "KHR", "OES", "CHROMIUM"]
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# The EGL_ANGLE_explicit_context extension is generated differently from other extensions.
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# Toggle generation here.
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support_EGL_ANGLE_explicit_context = True
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# For ungrouped GLenum types
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default_enum_group_name = "DefaultGroup"
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# Group names that appear in command/param, but not present in groups/group
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unsupported_enum_group_names = {
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'GetMultisamplePNameNV',
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'BufferPNameARB',
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'BufferPointerNameARB',
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'VertexAttribPointerPropertyARB',
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'VertexAttribPropertyARB',
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'FenceParameterNameNV',
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'FenceConditionNV',
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'BufferPointerNameARB',
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'MatrixIndexPointerTypeARB',
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'PointParameterNameARB',
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'ClampColorTargetARB',
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'ClampColorModeARB',
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}
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def script_relative(path):
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return os.path.join(os.path.dirname(sys.argv[0]), path)
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def path_to(folder, file):
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return os.path.join(script_relative(".."), "src", folder, file)
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class GLCommandNames:
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def __init__(self):
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self.command_names = {}
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def get_commands(self, version):
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return self.command_names[version]
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def get_all_commands(self):
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cmd_names = []
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# Combine all the version lists into a single list
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for version, version_cmd_names in sorted(self.command_names.iteritems()):
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cmd_names += version_cmd_names
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return cmd_names
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def add_commands(self, version, commands):
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# Add key if it doesn't exist
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if version not in self.command_names:
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self.command_names[version] = []
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# Add the commands that aren't duplicates
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self.command_names[version] += commands
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class RegistryXML:
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def __init__(self, xml_file, ext_file=None):
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tree = etree.parse(script_relative(xml_file))
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self.root = tree.getroot()
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if (ext_file):
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self._AppendANGLEExts(ext_file)
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self.all_commands = self.root.findall('commands/command')
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self.all_cmd_names = GLCommandNames()
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self.commands = {}
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def _AppendANGLEExts(self, ext_file):
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angle_ext_tree = etree.parse(script_relative(ext_file))
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angle_ext_root = angle_ext_tree.getroot()
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insertion_point = self.root.findall("./commands")[0]
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for command in angle_ext_root.iter('commands'):
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insertion_point.extend(command)
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insertion_point = self.root.findall("./extensions")[0]
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for extension in angle_ext_root.iter('extensions'):
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insertion_point.extend(extension)
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insertion_point = self.root
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for enums in angle_ext_root.iter('enums'):
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insertion_point.append(enums)
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def AddCommands(self, feature_name, annotation):
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xpath = ".//feature[@name='%s']//command" % feature_name
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commands = [cmd.attrib['name'] for cmd in self.root.findall(xpath)]
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# Remove commands that have already been processed
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current_cmds = self.all_cmd_names.get_all_commands()
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commands = [cmd for cmd in commands if cmd not in current_cmds]
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self.all_cmd_names.add_commands(annotation, commands)
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self.commands[annotation] = commands
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def _ClassifySupport(self, supported):
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if 'gles2' in supported:
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return 'gl2ext'
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elif 'gles1' in supported:
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return 'glext'
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elif 'egl' in supported:
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return 'eglext'
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elif 'wgl' in supported:
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return 'wglext'
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else:
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assert False
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return 'unknown'
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def AddExtensionCommands(self, supported_extensions, apis):
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# Use a first step to run through the extensions so we can generate them
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# in sorted order.
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self.ext_data = {}
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self.ext_dupes = {}
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ext_annotations = {}
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for extension in self.root.findall("extensions/extension"):
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extension_name = extension.attrib['name']
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if not extension_name in supported_extensions:
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continue
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ext_annotations[extension_name] = self._ClassifySupport(extension.attrib['supported'])
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ext_cmd_names = []
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# There's an extra step here to filter out 'api=gl' extensions. This
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# is necessary for handling KHR extensions, which have separate entry
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# point signatures (without the suffix) for desktop GL. Note that this
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# extra step is necessary because of Etree's limited Xpath support.
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for require in extension.findall('require'):
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if 'api' in require.attrib and require.attrib['api'] not in apis:
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continue
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# A special case for EXT_texture_storage
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filter_out_comment = "Supported only if GL_EXT_direct_state_access is supported"
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if 'comment' in require.attrib and require.attrib['comment'] == filter_out_comment:
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continue
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extension_commands = require.findall('command')
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ext_cmd_names += [command.attrib['name'] for command in extension_commands]
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self.ext_data[extension_name] = sorted(ext_cmd_names)
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for extension_name, ext_cmd_names in sorted(self.ext_data.iteritems()):
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# Detect and filter duplicate extensions.
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dupes = []
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for ext_cmd in ext_cmd_names:
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if ext_cmd in self.all_cmd_names.get_all_commands():
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dupes.append(ext_cmd)
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for dupe in dupes:
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ext_cmd_names.remove(dupe)
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self.ext_data[extension_name] = sorted(ext_cmd_names)
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self.ext_dupes[extension_name] = dupes
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self.all_cmd_names.add_commands(ext_annotations[extension_name], ext_cmd_names)
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