src/mapi/glapi/gen/glX_proto_common.py

   1 #!/usr/bin/env python
   2
   3 # (C) Copyright IBM Corporation 2004, 2005
   4 # All Rights Reserved.
   5 #
   6 # Permission is hereby granted, free of charge, to any person obtaining a
   7 # copy of this software and associated documentation files (the "Software"),
   8 # to deal in the Software without restriction, including without limitation
   9 # on the rights to use, copy, modify, merge, publish, distribute, sub
  10 # license, and/or sell copies of the Software, and to permit persons to whom
  11 # the Software is furnished to do so, subject to the following conditions:
  12 #
  13 # The above copyright notice and this permission notice (including the next
  14 # paragraph) shall be included in all copies or substantial portions of the
  15 # Software.
  16 #
  17 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19 # FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
  20 # IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  23 # IN THE SOFTWARE.
  24 #
  25 # Authors:
  26 #    Ian Romanick <idr@us.ibm.com>
  27
  28 import gl_XML, glX_XML
  29 import string
  30
  31
  32 class glx_proto_item_factory(glX_XML.glx_item_factory):
  33         """Factory to create GLX protocol oriented objects derived from gl_item."""
  34
  35         def create_item(self, name, element, context):
  36                 if name == "type":
  37                         return glx_proto_type(element, context)
  38                 else:
  39                         return glX_XML.glx_item_factory.create_item(self, name, element, context)
  40
  41
  42 class glx_proto_type(gl_XML.gl_type):
  43         def __init__(self, element, context):
  44                 gl_XML.gl_type.__init__(self, element, context)
  45
  46                 self.glx_name = element.nsProp( "glx_name", None )
  47                 return
  48
  49
  50 class glx_print_proto(gl_XML.gl_print_base):
  51         def size_call(self, func, outputs_also = 0):
  52                 """Create C code to calculate 'compsize'.
  53
  54                 Creates code to calculate 'compsize'.  If the function does
  55                 not need 'compsize' to be calculated, None will be
  56                 returned."""
  57
  58                 compsize = None
  59
  60                 for param in func.parameterIterator():
  61                         if outputs_also or not param.is_output:
  62                                 if param.is_image():
  63                                         [dim, w, h, d, junk] = param.get_dimensions()
  64
  65                                         compsize = '__glImageSize(%s, %s, %s, %s, %s, %s)' % (w, h, d, param.img_format, param.img_type, param.img_target)
  66                                         if not param.img_send_null:
  67                                                 compsize = '(%s != NULL) ? %s : 0' % (param.name, compsize)
  68
  69                                         return compsize
  70
  71                                 elif len(param.count_parameter_list):
  72                                         parameters = string.join( param.count_parameter_list, "," )
  73                                         compsize = "__gl%s_size(%s)" % (func.name, parameters)
  74
  75                                         return compsize
  76
  77                 return None
  78
  79
  80         def emit_packet_size_calculation(self, f, bias):
  81                 # compsize is only used in the command size calculation if
  82                 # the function has a non-output parameter that has a non-empty
  83                 # counter_parameter_list.
  84
  85                 compsize = self.size_call(f)
  86                 if compsize:
  87                         print '    const GLuint compsize = %s;' % (compsize)
  88
  89                 if bias:
  90                         print '    const GLuint cmdlen = %s - %u;' % (f.command_length(), bias)
  91                 else:
  92                         print '    const GLuint cmdlen = %s;' % (f.command_length())
  93
  94                 #print ''
  95                 return compsize