src/mapi/glapi/gen/glX_proto_common.py

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