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 28import gl_XML, glX_XML 29import string 30 31 32class 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 42class 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 50class 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 96