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 (at] 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 96
