scripts/opengl/src_util.py

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