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1# -*- coding: utf-8 -*-
2
3#-------------------------------------------------------------------------
4# drawElements Quality Program utilities
5# --------------------------------------
6#
7# Copyright 2015 The Android Open Source Project
8#
9# Licensed under the Apache License, Version 2.0 (the "License");
10# you may not use this file except in compliance with the License.
11# You may obtain a copy of the License at
12#
13#      http://www.apache.org/licenses/LICENSE-2.0
14#
15# Unless required by applicable law or agreed to in writing, software
16# distributed under the License is distributed on an "AS IS" BASIS,
17# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18# See the License for the specific language governing permissions and
19# limitations under the License.
20#
21#-------------------------------------------------------------------------
22
23from src_util import *
24
25def getExtensionCommands (registry, iface, api, extension):
26	commands = []
27
28	# Build interface with just the single extension and no core APIs.
29	# Aliases will not be set in this iface so we will use it only for
30	# slicing the complete (hybrid) iface.
31	extIface = getInterface(registry, api, version=False, profile='core', extensionNames=[extension])
32	if not extIface.commands:
33		return commands
34
35	cmdMap = {}
36	for command in iface.commands:
37		cmdMap[command.name] = command
38
39	for extCommand in extIface.commands:
40		assert extCommand.name in cmdMap
41		commands.append(cmdMap[extCommand.name])
42
43	return commands
44
45def genExtensions (registry, iface, api):
46	for extName in EXTENSIONS:
47		extCommands = getExtensionCommands(registry, iface, api, extName)
48		if len(extCommands) == 0:
49			continue # Not applicable for this api
50
51		yield ""
52		yield "if (de::contains(extSet, \"%s\"))" % extName
53		yield "{"
54
55		def genInit (command):
56			ifaceName = command.alias.name if command.alias and command.name not in ALIASING_EXCEPTIONS else command.name
57			return "gl->%s\t= (%s)\tloader->get(\"%s\");" % (
58				getFunctionMemberName(ifaceName),
59				getFunctionTypeName(ifaceName),
60				command.name)
61
62		for line in indentLines(genInit(command) for command in extCommands):
63			yield "\t" + line
64
65		yield "}"
66
67def genExtInit (registry, iface):
68	nonStrippedIface = getHybridInterface(stripAliasedExtCommands = False)
69
70	writeInlFile(os.path.join(OPENGL_INC_DIR, "glwInitExtES.inl"), genExtensions(registry, nonStrippedIface, 'gles2'))
71	writeInlFile(os.path.join(OPENGL_INC_DIR, "glwInitExtGL.inl"), genExtensions(registry, nonStrippedIface, 'gl'))
72
73if __name__ == '__main__':
74	genExtInit(getGLRegistry(), getHybridInterface())
75