# -*- coding: utf-8 -*-

#-------------------------------------------------------------------------
# drawElements Quality Program utilities
# --------------------------------------
#
# Copyright 2015-2017 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#-------------------------------------------------------------------------

import os
import re
import sys

def registerPaths():
    sys.path.append(os.path.dirname(os.path.dirname(__file__)))

registerPaths()

import khr_util.format
import khr_util.registry
import khr_util.registry_cache

SCRIPTS_DIR = os.path.dirname(__file__)
EGL_DIR = os.path.normpath(os.path.join(SCRIPTS_DIR, "..", "..", "framework", "egl"))
EGL_WRAPPER_DIR = os.path.normpath(os.path.join(EGL_DIR, "wrapper"))

EGL_SOURCE = khr_util.registry_cache.RegistrySource(
                        "https://raw.githubusercontent.com/KhronosGroup/EGL-Registry",
                        "api/egl.xml",
                        "3338ed0db494d6a4db7f76627b38f0b1892db096",
                        "863db99411edfd83ba1d875fb0e13e021e155689d3eae5199a9b1ec969f368e9")

VERSION = '1.5'

EXTENSIONS = [
    # \todo [2014-12-05 pyry] Use 1.5 core functions/enums instead
    "EGL_KHR_create_context",
    "EGL_KHR_create_context_no_error",
    "EGL_KHR_lock_surface",
    "EGL_KHR_image_base",
    "EGL_KHR_fence_sync",
    "EGL_KHR_reusable_sync",
    "EGL_KHR_wait_sync",
    "EGL_KHR_gl_texture_2D_image",
    "EGL_KHR_gl_texture_cubemap_image",
    "EGL_KHR_gl_renderbuffer_image",
    "EGL_KHR_gl_texture_3D_image",
    "EGL_EXT_create_context_robustness",
    "EGL_EXT_platform_base",
    "EGL_EXT_platform_x11",
    "EGL_KHR_platform_wayland",
    "EGL_ANDROID_image_native_buffer",
    "EGL_EXT_yuv_surface",
    "EGL_EXT_buffer_age",
    "EGL_KHR_partial_update",
    "EGL_KHR_swap_buffers_with_damage",
    "EGL_KHR_mutable_render_buffer",
    "EGL_EXT_pixel_format_float",
    "EGL_KHR_gl_colorspace",
    "EGL_EXT_gl_colorspace_bt2020_linear",
    "EGL_EXT_gl_colorspace_bt2020_pq",
    "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_surface_SMPTE2086_metadata",
    "EGL_EXT_surface_CTA861_3_metadata",
    "EGL_EXT_gl_colorspace_bt2020_linear",
    "EGL_EXT_gl_colorspace_bt2020_pq"
]
PROTECTS = [
    "KHRONOS_SUPPORT_INT64"
]

def getEGLRegistry ():
    return khr_util.registry_cache.getRegistry(EGL_SOURCE)

def getInterface (registry, api, version=None, profile=None, **kwargs):
    spec = khr_util.registry.spec(registry, api, version, profile, **kwargs)
    return khr_util.registry.createInterface(registry, spec, api)

def getDefaultInterface ():
    return getInterface(getEGLRegistry(), 'egl', VERSION, extensionNames = EXTENSIONS, protects = PROTECTS)

def getFunctionTypeName (funcName):
    return "%sFunc" % funcName

def getFunctionMemberName (funcName):
    assert funcName[:3] == "egl"
    return "%c%s" % (funcName[3].lower(), funcName[4:])

def genCommandList (iface, renderCommand, directory, filename, align=False):
    lines = map(renderCommand, iface.commands)
    if align:
        lines = khr_util.format.indentLines(lines)
    writeInlFile(os.path.join(directory, filename), lines)

def getVersionToken (version):
    return version.replace(".", "")

def genCommandLists (registry, renderCommand, check, directory, filePattern, align=False):
    for eFeature in registry.features:
        api = eFeature.get('api')
        version = eFeature.get('number')
        profile = check(api, version)
        if profile is True:
            profile = None
        elif profile is False:
            continue
        iface = getInterface(registry, api, version=version, profile=profile)
        filename = filePattern % getVersionToken(version)
        genCommandList(iface, renderCommand, directory, filename, align)

INL_HEADER = khr_util.format.genInlHeader("Khronos EGL API description (egl.xml)", EGL_SOURCE.getRevision())

def writeInlFile (filename, source):
    khr_util.format.writeInlFile(filename, INL_HEADER, source)