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2de70fe23f
It is quite hard to meet the dependency of the libxml2 python bindings outside Linux, and in particularly on MacOSX; whereas ElementTree is part of Python's standard library. ElementTree is more limited than libxml2: no DTD verification, defaults from DTD, or XInclude support, but none of these limitations is serious enough to justify using libxml2. In fact, it was easier to refactor the code to use ElementTree than to try to get libxml2 python bindings. In the process, gl_item_factory class was refactored so that there is one method for each kind of object to be created, as it simplifies things substantially. I confirmed that precisely the same output is generated for GL/GLX/GLES. v2: Remove m4/ax_python_module.m4 as suggested by Matt Turner. Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
92 lines
3.3 KiB
Python
92 lines
3.3 KiB
Python
#!/usr/bin/env python
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# (C) Copyright IBM Corporation 2004, 2005
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# All Rights Reserved.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# on the rights to use, copy, modify, merge, publish, distribute, sub
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# license, and/or sell copies of the Software, and to permit persons to whom
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# the Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice (including the next
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# paragraph) shall be included in all copies or substantial portions of the
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# Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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# IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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#
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# Authors:
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# Ian Romanick <idr@us.ibm.com>
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import gl_XML, glX_XML
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import string
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class glx_proto_item_factory(glX_XML.glx_item_factory):
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"""Factory to create GLX protocol oriented objects derived from gl_item."""
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def create_type(self, element, context, category):
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return glx_proto_type(element, context, category)
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class glx_proto_type(gl_XML.gl_type):
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def __init__(self, element, context, category):
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gl_XML.gl_type.__init__(self, element, context, category)
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self.glx_name = element.get( "glx_name" )
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return
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class glx_print_proto(gl_XML.gl_print_base):
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def size_call(self, func, outputs_also = 0):
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"""Create C code to calculate 'compsize'.
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Creates code to calculate 'compsize'. If the function does
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not need 'compsize' to be calculated, None will be
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returned."""
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compsize = None
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for param in func.parameterIterator():
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if outputs_also or not param.is_output:
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if param.is_image():
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[dim, w, h, d, junk] = param.get_dimensions()
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compsize = '__glImageSize(%s, %s, %s, %s, %s, %s)' % (w, h, d, param.img_format, param.img_type, param.img_target)
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if not param.img_send_null:
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compsize = '(%s != NULL) ? %s : 0' % (param.name, compsize)
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return compsize
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elif len(param.count_parameter_list):
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parameters = string.join( param.count_parameter_list, "," )
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compsize = "__gl%s_size(%s)" % (func.name, parameters)
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return compsize
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return None
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def emit_packet_size_calculation(self, f, bias):
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# compsize is only used in the command size calculation if
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# the function has a non-output parameter that has a non-empty
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# counter_parameter_list.
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compsize = self.size_call(f)
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if compsize:
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print ' const GLuint compsize = %s;' % (compsize)
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if bias:
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print ' const GLuint cmdlen = %s - %u;' % (f.command_length(), bias)
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else:
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print ' const GLuint cmdlen = %s;' % (f.command_length())
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#print ''
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return compsize
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