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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 
     23 import os
     24 import re
     25 import sys
     26 
     27 sys.path.append(os.path.dirname(os.path.dirname(__file__)))
     28 
     29 import khr_util.format
     30 import khr_util.registry
     31 import khr_util.registry_cache
     32 
     33 SCRIPTS_DIR			= os.path.dirname(__file__)
     34 OPENGL_DIR			= os.path.normpath(os.path.join(SCRIPTS_DIR, "..", "..", "framework", "opengl"))
     35 EGL_DIR				= os.path.normpath(os.path.join(SCRIPTS_DIR, "..", "..", "framework", "egl"))
     36 OPENGL_INC_DIR		= os.path.join(OPENGL_DIR, "wrapper")
     37 
     38 GL_SOURCE			= khr_util.registry_cache.RegistrySource(
     39 						"gl.xml",
     40 						32093,
     41 						"3292120320cacbc27009e7507656d7be17bb25f06876814c67eeffa369281eed")
     42 
     43 EXTENSIONS			= [
     44 	'GL_KHR_texture_compression_astc_ldr',
     45 	'GL_KHR_blend_equation_advanced',
     46 	'GL_KHR_blend_equation_advanced_coherent',
     47 	'GL_KHR_debug',
     48 	'GL_EXT_geometry_point_size',
     49 	'GL_EXT_tessellation_shader',
     50 	'GL_EXT_geometry_shader',
     51 	'GL_EXT_texture_buffer',
     52 	'GL_EXT_texture_snorm',
     53 	'GL_EXT_primitive_bounding_box',
     54 	'GL_OES_EGL_image',
     55 	'GL_OES_compressed_ETC1_RGB8_texture',
     56 	'GL_OES_texture_half_float',
     57 	'GL_OES_texture_storage_multisample_2d_array',
     58 	'GL_OES_sample_shading',
     59 	'GL_EXT_texture_compression_s3tc',
     60 	'GL_IMG_texture_compression_pvrtc',
     61 	'GL_EXT_copy_image',
     62 	'GL_EXT_draw_buffers_indexed',
     63 	'GL_EXT_texture_sRGB_decode',
     64 	'GL_EXT_texture_border_clamp',
     65 	'GL_EXT_texture_sRGB_R8',
     66 	'GL_EXT_texture_sRGB_RG8',
     67 	'GL_EXT_debug_marker',
     68 	'GL_EXT_robustness',
     69 	'GL_KHR_robustness',
     70 ]
     71 
     72 def getGLRegistry ():
     73 	return khr_util.registry_cache.getRegistry(GL_SOURCE)
     74 
     75 # return the name of a core command corresponding to an extension command.
     76 # Ideally this should be done using the alias attribute of commands, but dEQP
     77 # just strips the extension suffix.
     78 def getCoreName (name):
     79 	return re.sub('[A-Z]+$', '', name)
     80 
     81 def getHybridInterface ():
     82 	# This is a bit awkward, since we have to create a strange hybrid
     83 	# interface that includes both GL and ES features and extensions.
     84 	registry = getGLRegistry()
     85 	glFeatures = registry.getFeatures('gl')
     86 	esFeatures = registry.getFeatures('gles2')
     87 	spec = khr_util.registry.InterfaceSpec()
     88 
     89 	for feature in registry.getFeatures('gl'):
     90 		spec.addFeature(feature, 'gl', 'core')
     91 
     92 	for feature in registry.getFeatures('gles2'):
     93 		spec.addFeature(feature, 'gles2')
     94 
     95 	for extName in EXTENSIONS:
     96 		extension = registry.extensions[extName]
     97 		# Add all extensions using the ES2 api, but force even non-ES2
     98 		# extensions to be included.
     99 		spec.addExtension(extension, 'gles2', 'core', force=True)
    100 
    101 	# Remove redundant extension commands that are already provided by core.
    102 	for commandName in list(spec.commands):
    103 		coreName = getCoreName(commandName)
    104 		if coreName != commandName and coreName in spec.commands:
    105 			spec.commands.remove(commandName)
    106 
    107 	return khr_util.registry.createInterface(registry, spec, 'gles2')
    108 
    109 def getInterface (registry, api, version=None, profile=None, **kwargs):
    110 	spec = khr_util.registry.spec(registry, api, version, profile, **kwargs)
    111 	if api == 'gl' and profile == 'core' and version < "3.2":
    112 		gl32 = registry.features['GL_VERSION_3_2']
    113 		for eRemove in gl32.xpath('remove'):
    114 			spec.addComponent(eRemove)
    115 	return khr_util.registry.createInterface(registry, spec, api)
    116 
    117 def getVersionToken (api, version):
    118 	prefixes = { 'gles2': "ES", 'gl': "GL" }
    119 	return prefixes[api] + version.replace(".", "")
    120 
    121 def genCommandList(iface, renderCommand, directory, filename, align=False):
    122 	lines = map(renderCommand, iface.commands)
    123 	if align:
    124 		lines = indentLines(lines)
    125 	writeInlFile(os.path.join(directory, filename), lines)
    126 
    127 def genCommandLists(registry, renderCommand, check, directory, filePattern, align=False):
    128 	for eFeature in registry.features:
    129 		api			= eFeature.get('api')
    130 		version		= eFeature.get('number')
    131 		profile		= check(api, version)
    132 		if profile is True:
    133 			profile = None
    134 		elif profile is False:
    135 			continue
    136 		iface		= getInterface(registry, api, version=version, profile=profile)
    137 		filename	= filePattern % getVersionToken(api, version)
    138 		genCommandList(iface, renderCommand, directory, filename, align)
    139 
    140 def getFunctionTypeName (funcName):
    141 	return "%sFunc" % funcName
    142 
    143 def getFunctionMemberName (funcName):
    144 	assert funcName[:2] == "gl"
    145 	if funcName[:5] == "glEGL":
    146 		# Otherwise we end up with gl.eGLImage...
    147 		return "egl%s" % funcName[5:]
    148 	else:
    149 		return "%c%s" % (funcName[2].lower(), funcName[3:])
    150 
    151 INL_HEADER = khr_util.format.genInlHeader("Khronos GL API description (gl.xml)", GL_SOURCE.getRevision())
    152 
    153 def writeInlFile (filename, source):
    154 	khr_util.format.writeInlFile(filename, INL_HEADER, source)
    155 
    156 # Aliases from khr_util.common
    157 indentLines			= khr_util.format.indentLines
    158 normalizeConstant	= khr_util.format.normalizeConstant
    159 commandParams		= khr_util.format.commandParams
    160 commandArgs			= khr_util.format.commandArgs
    161