Python script to generate various bits of client-side GLX protocol code.
This commit is contained in:
Ian Romanick
981
src/mesa/glapi/glX_proto_send.py
Normal file
981
src/mesa/glapi/glX_proto_send.py
Normal file
@@ -0,0 +1,981 @@
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#!/usr/bin/python2
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# (C) Copyright IBM Corporation 2004
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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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from xml.sax import saxutils
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from xml.sax import make_parser
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from xml.sax.handler import feature_namespaces
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import gl_XML
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import license
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import sys, getopt
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def printPure():
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print """# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
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# define PURE __attribute__((pure))
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# else
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# define PURE
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# endif"""
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def printFastcall():
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print """# if defined(__i386__) && defined(__GNUC__)
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# define FASTCALL __attribute__((fastcall))
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# else
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# define FASTCALL
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# endif"""
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def printVisibility(S, s):
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print """# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)
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# define %s __attribute__((visibility("%s")))
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# else
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# define %s
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# endif""" % (S, s, S)
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def printNoinline():
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print """# if defined(__GNUC__)
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# define NOINLINE __attribute__((noinline))
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# else
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# define NOINLINE
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# endif"""
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class glXItemFactory(gl_XML.glItemFactory):
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"""Factory to create GLX protocol oriented objects derived from glItem."""
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def create(self, context, name, attrs):
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if name == "function":
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return glXFunction(context, name, attrs)
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elif name == "enum":
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return glXEnum(context, name, attrs)
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elif name == "param":
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return glXParameter(context, name, attrs)
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else:
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return gl_XML.glItemFactory.create(self, context, name, attrs)
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class glXEnumFunction:
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def __init__(self, name):
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self.name = name
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# "enums" is a set of lists. The element in the set is the
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# value of the enum. The list is the list of names for that
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# value. For example, [0x8126] = {"POINT_SIZE_MIN",
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# "POINT_SIZE_MIN_ARB", "POINT_SIZE_MIN_EXT",
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# "POINT_SIZE_MIN_SGIS"}.
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self.enums = {}
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# "count" is indexed by count values. Each element of count
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# is a list of index to "enums" that have that number of
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# associated data elements. For example, [4] =
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# {GL_AMBIENT, GL_DIFFUSE, GL_SPECULAR, GL_EMISSION,
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# GL_AMBIENT_AND_DIFFUSE} (the enum names are used here,
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# but the actual hexadecimal values would be in the array).
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self.count = {}
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def append(self, count, value, name):
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if self.enums.has_key( value ):
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self.enums[value].append(name)
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else:
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if not self.count.has_key(count):
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self.count[count] = []
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self.enums[value] = []
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self.enums[value].append(name)
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self.count[count].append(value)
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def signature( self ):
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sig = ""
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for i in self.count:
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for e in self.count[i]:
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sig += "%04x,%u," % (e, i)
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return sig;
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def PrintUsingTable(self):
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"""Emit the body of the __gl*_size function using a pair
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of look-up tables and a mask. The mask is calculated such
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that (e & mask) is unique for all the valid values of e for
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this function. The result of (e & mask) is used as an index
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into the first look-up table. If it matches e, then the
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same entry of the second table is returned. Otherwise zero
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is returned.
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It seems like this should cause better code to be generated.
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However, on x86 at least, the resulting .o file is about 20%
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larger then the switch-statment version. I am leaving this
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code in because the results may be different on other
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platforms (e.g., PowerPC or x86-64)."""
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return 0
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count = 0
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for a in self.enums:
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count += 1
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# Determine if there is some mask M, such that M = (2^N) - 1,
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# that will generate unique values for all of the enums.
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mask = 0
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for i in [1, 2, 3, 4, 5, 6, 7, 8]:
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mask = (1 << i) - 1
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fail = 0;
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for a in self.enums:
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for b in self.enums:
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if a != b:
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if (a & mask) == (b & mask):
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fail = 1;
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if not fail:
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break;
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else:
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mask = 0
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if (mask != 0) and (mask < (2 * count)):
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masked_enums = {}
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masked_count = {}
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for i in range(0, mask):
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masked_enums[i] = "0";
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masked_count[i] = 0;
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for c in self.count:
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for e in self.count[c]:
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i = e & mask
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masked_enums[i] = '0x%04x /* %s */' % (e, self.enums[e][0])
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masked_count[i] = c
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print ' static const GLushort a[%u] = {' % (mask + 1)
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for e in masked_enums:
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print ' %s, ' % (masked_enums[e])
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print ' };'
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print ' static const GLubyte b[%u] = {' % (mask + 1)
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for c in masked_count:
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print ' %u, ' % (masked_count[c])
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print ' };'
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print ' const unsigned idx = (e & 0x%02xU);' % (mask)
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print ''
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print ' return (e == a[idx]) ? (GLint) b[idx] : 0;'
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return 1;
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else:
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return 0;
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def PrintUsingSwitch(self):
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"""Emit the body of the __gl*_size function using a
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switch-statement."""
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print ' switch( e ) {'
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for c in self.count:
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for e in self.count[c]:
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first = 1
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# There may be multiple enums with the same
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# value. This happens has extensions are
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# promoted from vendor-specific or EXT to
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# ARB and to the core. Emit the first one as
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# a case label, and emit the others as
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# commented-out case labels.
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for j in self.enums[e]:
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if first:
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print ' case %s:' % (j)
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first = 0
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else:
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print '/* case %s:*/' % (j)
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print ' return %u;' % (c)
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print ' default: return 0;'
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print ' }'
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def Print(self, name):
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print 'INTERNAL PURE FASTCALL GLint'
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print '__gl%s_size( GLenum e )' % (name)
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print '{'
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if not self.PrintUsingTable():
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self.PrintUsingSwitch()
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print '}'
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print ''
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class glXEnum(gl_XML.glEnum):
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def __init__(self, context, name, attrs):
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gl_XML.glEnum.__init__(self, context, name, attrs)
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self.glx_functions = []
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def startElement(self, name, attrs):
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if name == "size":
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n = attrs.get('name', None)
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if not self.context.glx_enum_functions.has_key( n ):
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f = glXEnumFunction( n )
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self.context.glx_enum_functions[ f.name ] = f
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temp = attrs.get('count', None)
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try:
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c = int(temp)
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except Exception,e:
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raise RuntimeError('Invalid count value "%s" for enum "%s" in function "%s" when an integer was expected.' % (temp, self.name, n))
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self.context.glx_enum_functions[ n ].append( c, self.value, self.name )
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else:
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gl_XML.glEnum.startElement(self, context, name, attrs)
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return
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class glXParameter(gl_XML.glParameter):
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def __init__(self, context, name, attrs):
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self.order = 1;
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gl_XML.glParameter.__init__(self, context, name, attrs);
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class glXFunction(gl_XML.glFunction):
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glx_rop = 0
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glx_sop = 0
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glx_vendorpriv = 0
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# If this is set to true, it means that GLdouble parameters should be
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# written to the GLX protocol packet in the order they appear in the
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# prototype. This is different from the "classic" ordering. In the
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# classic ordering GLdoubles are written to the protocol packet first,
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# followed by non-doubles. NV_vertex_program was the first extension
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# to break with this tradition.
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glx_doubles_in_order = 0
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vectorequiv = None
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handcode = 0
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ignore = 0
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can_be_large = 0
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def __init__(self, context, name, attrs):
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self.vectorequiv = attrs.get('vectorequiv', None)
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self.count_parameters = None
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self.counter = None
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self.output = None
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self.can_be_large = 0
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self.reply_always_array = 0
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gl_XML.glFunction.__init__(self, context, name, attrs)
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return
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def startElement(self, name, attrs):
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"""Process elements within a function that are specific to GLX."""
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if name == "glx":
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self.glx_rop = int(attrs.get('rop', "0"))
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self.glx_sop = int(attrs.get('sop', "0"))
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self.glx_vendorpriv = int(attrs.get('vendorpriv', "0"))
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if attrs.get('handcode', "false") == "true":
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self.handcode = 1
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else:
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self.handcode = 0
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if attrs.get('ignore', "false") == "true":
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self.ignore = 1
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else:
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self.ignore = 0
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if attrs.get('large', "false") == "true":
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self.can_be_large = 1
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else:
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self.can_be_large = 0
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if attrs.get('doubles_in_order', "false") == "true":
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self.glx_doubles_in_order = 1
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else:
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self.glx_doubles_in_order = 0
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if attrs.get('always_array', "false") == "true":
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self.reply_always_array = 1
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else:
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self.reply_always_array = 0
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else:
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gl_XML.glFunction.startElement(self, name, attrs)
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def append(self, tag_name, p):
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gl_XML.glFunction.append(self, tag_name, p)
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if p.is_variable_length_array():
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p.order = 2;
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elif not self.glx_doubles_in_order and p.p_type.size == 8:
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p.order = 0;
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if p.p_count_parameters != None:
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self.count_parameters = p.p_count_parameters
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if p.is_counter:
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self.counter = p.name
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if p.is_output:
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self.output = p
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return
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def variable_length_parameter(self):
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for param in self.fn_parameters:
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if param.is_variable_length_array():
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return param
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return None
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def command_payload_length(self):
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size = 0
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size_string = ""
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for p in self:
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if p.is_output: continue
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temp = p.size_string()
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try:
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s = int(temp)
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size += s
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except Exception,e:
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size_string = size_string + " + __GLX_PAD(%s)" % (temp)
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return [size, size_string]
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def command_length(self):
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[size, size_string] = self.command_payload_length()
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if self.glx_rop != 0:
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size += 4
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size = ((size + 3) & ~3)
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return "%u%s" % (size, size_string)
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def opcode_value(self):
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if self.glx_rop != 0:
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return self.glx_rop
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elif self.glx_sop != 0:
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return self.glx_sop
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elif self.glx_vendorpriv != 0:
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return self.glx_vendorpriv
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else:
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return -1
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def opcode_rop_basename(self):
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if self.vectorequiv == None:
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return self.name
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else:
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return self.vectorequiv
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def opcode_name(self):
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if self.glx_rop != 0:
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return "X_GLrop_%s" % (self.opcode_rop_basename())
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elif self.glx_sop != 0:
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return "X_GLsop_%s" % (self.name)
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elif self.glx_vendorpriv != 0:
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return "X_GLvop_%s" % (self.name)
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else:
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return "ERROR"
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def opcode_real_name(self):
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if self.glx_vendorpriv != 0:
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if self.needs_reply():
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return "X_GLXVendorPrivateWithReply"
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else:
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return "X_GLXVendorPrivate"
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else:
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return self.opcode_name()
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||||
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||||
def return_string(self):
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if self.fn_return_type != 'void':
|
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return "return retval;"
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else:
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return "return;"
|
||||
|
||||
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||||
def needs_reply(self):
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return self.fn_return_type != 'void' or self.output != None
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||||
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class GlxProto(gl_XML.FilterGLAPISpecBase):
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name = "glX_proto_send.py (from Mesa)"
|
||||
|
||||
def __init__(self):
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gl_XML.FilterGLAPISpecBase.__init__(self)
|
||||
self.factory = glXItemFactory()
|
||||
self.glx_enum_functions = {}
|
||||
|
||||
|
||||
def endElement(self, name):
|
||||
if name == 'OpenGLAPI':
|
||||
# Once all the parsing is done, we have to go back and
|
||||
# fix-up some cross references between different
|
||||
# functions.
|
||||
|
||||
for k in self.functions:
|
||||
f = self.functions[k]
|
||||
if f.vectorequiv != None:
|
||||
equiv = self.find_function(f.vectorequiv)
|
||||
if equiv != None:
|
||||
f.glx_doubles_in_order = equiv.glx_doubles_in_order
|
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f.glx_rop = equiv.glx_rop
|
||||
else:
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raise RuntimeError("Could not find the vector equiv. function %s for %s!" % (f.name, f.vectorequiv))
|
||||
else:
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||||
gl_XML.FilterGLAPISpecBase.endElement(self, name)
|
||||
return
|
||||
|
||||
|
||||
class PrintGlxProtoStubs(GlxProto):
|
||||
def __init__(self):
|
||||
GlxProto.__init__(self)
|
||||
self.last_category = ""
|
||||
self.license = license.bsd_license_template % ( "(C) Copyright IBM Corporation 2004", "IBM")
|
||||
self.generic_sizes = [3, 4, 6, 8, 12, 16, 24, 32]
|
||||
return
|
||||
|
||||
def printRealHeader(self):
|
||||
print ''
|
||||
print '#include <GL/gl.h>'
|
||||
print '#include "indirect.h"'
|
||||
print '#include "glxclient.h"'
|
||||
print '#include "size.h"'
|
||||
print '#include <GL/glxproto.h>'
|
||||
print ''
|
||||
print '#define __GLX_PAD(n) (((n) + 3) & ~3)'
|
||||
print ''
|
||||
printFastcall()
|
||||
printNoinline()
|
||||
print ''
|
||||
print '/* If the size and opcode values are known at compile-time, this will, on'
|
||||
print ' * x86 at least, emit them with a single instruction.'
|
||||
print ' */'
|
||||
print '#define emit_header(dest, op, size) \\'
|
||||
print ' do { union { short s[2]; int i; } temp; \\'
|
||||
print ' temp.s[0] = (size); temp.s[1] = (op); \\'
|
||||
print ' *((int *)(dest)) = temp.i; } while(0)'
|
||||
print ''
|
||||
print """static NOINLINE CARD32
|
||||
read_reply( Display *dpy, size_t size, void * dest, GLboolean reply_is_always_array )
|
||||
{
|
||||
xGLXSingleReply reply;
|
||||
|
||||
(void) _XReply(dpy, (xReply *) & reply, 0, False);
|
||||
if (size != 0) {
|
||||
if ((reply.size >= 1) || reply_is_always_array) {
|
||||
const GLint bytes = (reply_is_always_array)
|
||||
? (4 * reply.length) : (reply.size * size);
|
||||
const GLint extra = 4 - (bytes & 3);
|
||||
|
||||
_XRead(dpy, dest, bytes);
|
||||
if ( extra != 0 ) {
|
||||
_XEatData(dpy, extra);
|
||||
}
|
||||
}
|
||||
else {
|
||||
(void) memcpy( dest, &(reply.pad3), size);
|
||||
}
|
||||
}
|
||||
|
||||
return reply.retval;
|
||||
}
|
||||
|
||||
#define X_GLXSingle 0
|
||||
|
||||
static NOINLINE GLubyte *
|
||||
setup_single_request( __GLXcontext * gc, GLint sop, GLint cmdlen )
|
||||
{
|
||||
xGLXSingleReq * req;
|
||||
Display * const dpy = gc->currentDpy;
|
||||
|
||||
(void) __glXFlushRenderBuffer(gc, gc->pc);
|
||||
LockDisplay(dpy);
|
||||
GetReqExtra(GLXSingle, cmdlen, req);
|
||||
req->reqType = gc->majorOpcode;
|
||||
req->contextTag = gc->currentContextTag;
|
||||
req->glxCode = sop;
|
||||
return (GLubyte *)(req) + sz_xGLXSingleReq;
|
||||
}
|
||||
|
||||
static NOINLINE GLubyte *
|
||||
setup_vendor_request( __GLXcontext * gc, GLint code, GLint vop, GLint cmdlen )
|
||||
{
|
||||
xGLXVendorPrivateReq * req;
|
||||
Display * const dpy = gc->currentDpy;
|
||||
|
||||
(void) __glXFlushRenderBuffer(gc, gc->pc);
|
||||
LockDisplay(dpy);
|
||||
GetReqExtra(GLXVendorPrivate, cmdlen, req);
|
||||
req->reqType = gc->majorOpcode;
|
||||
req->glxCode = code;
|
||||
req->vendorCode = vop;
|
||||
req->contextTag = gc->currentContextTag;
|
||||
return (GLubyte *)(req) + sz_xGLXVendorPrivateReq;
|
||||
}
|
||||
"""
|
||||
|
||||
for size in self.generic_sizes:
|
||||
self.print_generic_function(size)
|
||||
return
|
||||
|
||||
def printFunction(self, f):
|
||||
if f.fn_offset < 0 or f.handcode or f.ignore: return
|
||||
|
||||
if f.glx_rop != 0 or f.vectorequiv != None:
|
||||
self.printRenderFunction(f)
|
||||
elif f.glx_sop != 0 or f.glx_vendorpriv != 0:
|
||||
self.printSingleFunction(f)
|
||||
else:
|
||||
print "/* Missing GLX protocol for %s. */" % (f.name)
|
||||
|
||||
def print_generic_function(self, n):
|
||||
print """static FASTCALL NOINLINE void
|
||||
generic_%u_byte( GLint rop, const void * ptr )
|
||||
{
|
||||
__GLXcontext * const gc = __glXGetCurrentContext();
|
||||
const GLuint cmdlen = %u;
|
||||
|
||||
emit_header(gc->pc, rop, cmdlen);
|
||||
(void) memcpy((void *)(gc->pc + 4), ptr, %u);
|
||||
gc->pc += cmdlen;
|
||||
if (gc->pc > gc->limit) { (void) __glXFlushRenderBuffer(gc, gc->pc); }
|
||||
}
|
||||
""" % (n, n + 4, n)
|
||||
|
||||
|
||||
def common_emit_one_arg(self, p, offset, pc, indent, adjust):
|
||||
if p.is_output: return
|
||||
|
||||
t = p.p_type
|
||||
if p.is_array():
|
||||
src_ptr = p.name
|
||||
else:
|
||||
src_ptr = "&" + p.name
|
||||
|
||||
print '%s (void) memcpy((void *)(%s + %u), (void *)(%s), %s);' \
|
||||
% (indent, pc, offset + adjust, src_ptr, p.size_string() )
|
||||
|
||||
def common_emit_args(self, f, pc, indent, adjust, skip_vla):
|
||||
# First emit all of the fixed-length 8-byte (i.e., GLdouble)
|
||||
# parameters.
|
||||
|
||||
offset = 0
|
||||
|
||||
if skip_vla:
|
||||
r = [0, 1]
|
||||
else:
|
||||
r = [0, 1, 2]
|
||||
|
||||
for order in r:
|
||||
for p in f:
|
||||
if p.is_output or p.order != order: continue
|
||||
|
||||
self.common_emit_one_arg(p, offset, pc, indent, adjust)
|
||||
offset += p.size()
|
||||
|
||||
|
||||
return offset
|
||||
|
||||
|
||||
def common_func_print_just_header(self, f):
|
||||
print '#define %s %d' % (f.opcode_name(), f.opcode_value())
|
||||
|
||||
print '%s' % (f.fn_return_type)
|
||||
print '__indirect_gl%s(%s)' % (f.name, f.get_parameter_string())
|
||||
print '{'
|
||||
|
||||
|
||||
def common_func_print_header(self, f):
|
||||
self.common_func_print_just_header(f)
|
||||
|
||||
print ' __GLXcontext * const gc = __glXGetCurrentContext();'
|
||||
print ' Display * const dpy = gc->currentDpy;'
|
||||
|
||||
if f.fn_return_type != 'void':
|
||||
print ' %s retval = (%s) 0;' % (f.fn_return_type, f.fn_return_type)
|
||||
|
||||
if f.count_parameters != None:
|
||||
print ' const GLuint compsize = __gl%s_size(%s);' % (f.name, f.count_parameters)
|
||||
|
||||
print ' const GLuint cmdlen = %s;' % (f.command_length())
|
||||
|
||||
if f.counter != None:
|
||||
print ' if (%s < 0) %s' % (f.counter, f.return_string())
|
||||
|
||||
if f.can_be_large:
|
||||
print ' if (dpy == NULL) return;'
|
||||
print ' if ( ((gc->pc + cmdlen) > gc->bufEnd)'
|
||||
print ' || (cmdlen > gc->maxSmallRenderCommandSize)) {'
|
||||
print ' (void) __glXFlushRenderBuffer(gc, gc->pc);'
|
||||
print ' }'
|
||||
else:
|
||||
print ' (void) dpy;'
|
||||
|
||||
return
|
||||
|
||||
|
||||
def printSingleFunction(self, f):
|
||||
self.common_func_print_header(f)
|
||||
|
||||
print ' if (dpy != NULL) {'
|
||||
|
||||
if f.fn_parameters != []:
|
||||
pc_decl = "GLubyte const * pc ="
|
||||
else:
|
||||
pc_decl = "(void)"
|
||||
|
||||
if f.glx_vendorpriv != 0:
|
||||
print ' %s setup_vendor_request(gc, %s, %s, cmdlen);' % (pc_decl, f.opcode_real_name(), f.opcode_name())
|
||||
else:
|
||||
print ' %s setup_single_request(gc, %s, cmdlen);' % (pc_decl, f.opcode_name())
|
||||
|
||||
self.common_emit_args(f, "pc", " ", 0, 0)
|
||||
|
||||
if f.needs_reply():
|
||||
if f.output != None:
|
||||
output_size = f.output.p_type.size
|
||||
output_str = f.output.name
|
||||
else:
|
||||
output_size = 0
|
||||
output_str = "NULL"
|
||||
|
||||
if f.fn_return_type != 'void':
|
||||
return_str = " retval = (%s)" % (f.fn_return_type)
|
||||
else:
|
||||
return_str = " (void)"
|
||||
|
||||
if f.reply_always_array:
|
||||
aa = "GL_TRUE"
|
||||
else:
|
||||
aa = "GL_FALSE"
|
||||
|
||||
print " %s read_reply(gc->currentDpy, %s, %s, %s);" % (return_str, output_size, output_str, aa)
|
||||
|
||||
print ' UnlockDisplay(gc->currentDpy); SyncHandle();'
|
||||
print ' }'
|
||||
print ' %s' % f.return_string()
|
||||
print '}'
|
||||
print ''
|
||||
return
|
||||
|
||||
|
||||
def printRenderFunction(self, f):
|
||||
if f.variable_length_parameter() == None and len(f.fn_parameters) == 1:
|
||||
p = f.fn_parameters[0]
|
||||
if p.is_pointer:
|
||||
[cmdlen, size_string] = f.command_payload_length()
|
||||
if cmdlen in self.generic_sizes:
|
||||
self.common_func_print_just_header(f)
|
||||
print ' generic_%u_byte( %s, %s );' % (cmdlen, f.opcode_real_name(), p.name)
|
||||
print '}'
|
||||
print ''
|
||||
return
|
||||
|
||||
self.common_func_print_header(f)
|
||||
|
||||
if f.can_be_large:
|
||||
print ' if (cmdlen <= gc->maxSmallRenderCommandSize) {'
|
||||
indent = " "
|
||||
else:
|
||||
indent = ""
|
||||
|
||||
print '%s emit_header(gc->pc, %s, cmdlen);' % (indent, f.opcode_real_name())
|
||||
|
||||
self.common_emit_args(f, "gc->pc", indent, 4, 0)
|
||||
print '%s gc->pc += cmdlen;' % (indent)
|
||||
print '%s if (gc->pc > gc->limit) { (void) __glXFlushRenderBuffer(gc, gc->pc); }' % (indent)
|
||||
|
||||
if f.can_be_large:
|
||||
print ' }'
|
||||
print ' else {'
|
||||
print ' const GLint op = %s;' % (f.opcode_real_name())
|
||||
print ' const GLuint cmdlenLarge = cmdlen + 4;'
|
||||
print ' (void) memcpy((void *)(gc->pc + 0), (void *)(&op), 4);'
|
||||
print ' (void) memcpy((void *)(gc->pc + 4), (void *)(&cmdlenLarge), 4);'
|
||||
offset = self.common_emit_args(f, "gc->pc", indent, 8, 1)
|
||||
|
||||
p = f.variable_length_parameter()
|
||||
print ' __glXSendLargeCommand(gc, gc->pc, %u, %s, %s);' % (offset + 8, p.name, p.size_string())
|
||||
print ' }'
|
||||
|
||||
print '}'
|
||||
print ''
|
||||
return
|
||||
|
||||
|
||||
class PrintGlxProtoInit_c(GlxProto):
|
||||
def __init__(self):
|
||||
GlxProto.__init__(self)
|
||||
self.last_category = ""
|
||||
self.license = license.bsd_license_template % ( \
|
||||
"""Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
|
||||
(C) Copyright IBM Corporation 2004""", "PRECISION INSIGHT, IBM")
|
||||
|
||||
|
||||
def printRealHeader(self):
|
||||
print """/**
|
||||
* \\file indirect_init.c
|
||||
* Initialize indirect rendering dispatch table.
|
||||
*
|
||||
* \\author Kevin E. Martin <kevin@precisioninsight.com>
|
||||
* \\author Brian Paul <brian@precisioninsight.com>
|
||||
* \\author Ian Romanick <idr@us.ibm.com>
|
||||
*/
|
||||
|
||||
#include "indirect_init.h"
|
||||
#include "indirect.h"
|
||||
#include "glapi.h"
|
||||
|
||||
|
||||
/**
|
||||
* No-op function used to initialize functions that have no GLX protocol
|
||||
* support.
|
||||
*/
|
||||
static int NoOp(void)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Create and initialize a new GL dispatch table. The table is initialized
|
||||
* with GLX indirect rendering protocol functions.
|
||||
*/
|
||||
__GLapi * __glXNewIndirectAPI( void )
|
||||
{
|
||||
__GLapi *glAPI;
|
||||
GLuint entries;
|
||||
|
||||
entries = _glapi_get_dispatch_table_size();
|
||||
glAPI = (__GLapi *) Xmalloc(entries * sizeof(void *));
|
||||
|
||||
/* first, set all entries to point to no-op functions */
|
||||
{
|
||||
int i;
|
||||
void **dispatch = (void **) glAPI;
|
||||
for (i = 0; i < entries; i++) {
|
||||
dispatch[i] = (void *) NoOp;
|
||||
}
|
||||
}
|
||||
|
||||
/* now, initialize the entries we understand */"""
|
||||
|
||||
def printRealFooter(self):
|
||||
print """
|
||||
return glAPI;
|
||||
}
|
||||
"""
|
||||
|
||||
def printFunction(self, f):
|
||||
if f.fn_offset < 0 or f.ignore: return
|
||||
|
||||
if f.category != self.last_category:
|
||||
self.last_category = f.category
|
||||
print ''
|
||||
print ' /* %s */' % (self.last_category)
|
||||
print ''
|
||||
|
||||
print ' glAPI->%s = __indirect_gl%s;' % (f.name, f.name)
|
||||
|
||||
|
||||
class PrintGlxProtoInit_h(GlxProto):
|
||||
def __init__(self):
|
||||
GlxProto.__init__(self)
|
||||
self.last_category = ""
|
||||
self.license = license.bsd_license_template % ( \
|
||||
"""Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
|
||||
(C) Copyright IBM Corporation 2004""", "PRECISION INSIGHT, IBM")
|
||||
|
||||
|
||||
def printRealHeader(self):
|
||||
print """
|
||||
/**
|
||||
* \\file
|
||||
* Prototypes for indirect rendering functions.
|
||||
*
|
||||
* \\author Kevin E. Martin <kevin@precisioninsight.com>
|
||||
* \\author Ian Romanick <idr@us.ibm.com>
|
||||
*/
|
||||
|
||||
#if !defined( _INDIRECT_H_ )
|
||||
# define _INDIRECT_H_
|
||||
|
||||
"""
|
||||
printVisibility( "HIDDEN", "hidden" )
|
||||
|
||||
|
||||
def printRealFooter(self):
|
||||
print "# undef HIDDEN"
|
||||
print "#endif /* !defined( _INDIRECT_H_ ) */"
|
||||
|
||||
def printFunction(self, f):
|
||||
if f.fn_offset < 0 or f.ignore: return
|
||||
print 'extern HIDDEN %s __indirect_gl%s(%s);' % (f.fn_return_type, f.name, f.get_parameter_string())
|
||||
|
||||
|
||||
class PrintGlxSizeStubs(GlxProto):
|
||||
def __init__(self):
|
||||
GlxProto.__init__(self)
|
||||
self.license = license.bsd_license_template % ( "(C) Copyright IBM Corporation 2004", "IBM")
|
||||
self.aliases = []
|
||||
self.glx_enum_sigs = {}
|
||||
|
||||
def printRealHeader(self):
|
||||
print ''
|
||||
print '#include <GL/gl.h>'
|
||||
print '#include "indirect_size.h"'
|
||||
|
||||
print ''
|
||||
printPure()
|
||||
print ''
|
||||
printFastcall()
|
||||
print ''
|
||||
printVisibility( "INTERNAL", "internal" )
|
||||
print ''
|
||||
print ''
|
||||
print '#ifdef HAVE_ALIAS'
|
||||
print '# define ALIAS2(from,to) \\'
|
||||
print ' INTERNAL PURE FASTCALL GLint __gl ## from ## _size( GLenum e ) \\'
|
||||
print ' __attribute__ ((alias( # to )));'
|
||||
print '# define ALIAS(from,to) ALIAS2( from, __gl ## to ## _size )'
|
||||
print '#else'
|
||||
print '# define ALIAS(from,to) \\'
|
||||
print ' INTERNAL PURE FASTCALL GLint __gl ## from ## _size( GLenum e ) \\'
|
||||
print ' { return __gl ## to ## _size( e ); }'
|
||||
print '#endif'
|
||||
print ''
|
||||
print ''
|
||||
|
||||
def printRealFooter(self):
|
||||
for a in self.aliases:
|
||||
print a
|
||||
|
||||
def printFunction(self, f):
|
||||
if self.glx_enum_functions.has_key(f.name):
|
||||
ef = self.glx_enum_functions[f.name]
|
||||
|
||||
sig = ef.signature();
|
||||
if self.glx_enum_sigs.has_key(sig):
|
||||
n = self.glx_enum_sigs[sig];
|
||||
a = 'ALIAS( %s, %s )' % (f.name, n)
|
||||
self.aliases.append(a)
|
||||
else:
|
||||
ef.Print( f.name )
|
||||
self.glx_enum_sigs[sig] = f.name;
|
||||
|
||||
|
||||
|
||||
class PrintGlxSizeStubs_h(GlxProto):
|
||||
def __init__(self):
|
||||
GlxProto.__init__(self)
|
||||
self.license = license.bsd_license_template % ( "(C) Copyright IBM Corporation 2004", "IBM")
|
||||
self.aliases = []
|
||||
self.glx_enum_sigs = {}
|
||||
|
||||
def printRealHeader(self):
|
||||
print """
|
||||
/**
|
||||
* \\file
|
||||
* Prototypes for functions used to determine the number of data elements in
|
||||
* various GLX protocol messages.
|
||||
*
|
||||
* \\author Ian Romanick <idr@us.ibm.com>
|
||||
*/
|
||||
|
||||
#if !defined( _GLXSIZE_H_ )
|
||||
# define _GLXSIZE_H_
|
||||
|
||||
"""
|
||||
printPure();
|
||||
print ''
|
||||
printFastcall();
|
||||
print ''
|
||||
printVisibility( "INTERNAL", "internal" );
|
||||
print ''
|
||||
|
||||
def printRealFooter(self):
|
||||
print ''
|
||||
print "# undef INTERNAL"
|
||||
print "# undef PURE"
|
||||
print "# undef FASTCALL"
|
||||
print "#endif /* !defined( _GLXSIZE_H_ ) */"
|
||||
|
||||
|
||||
def printFunction(self, f):
|
||||
if self.glx_enum_functions.has_key(f.name):
|
||||
ef = self.glx_enum_functions[f.name]
|
||||
print 'extern INTERNAL GLint __gl%s_size(GLenum) PURE FASTCALL;' % (f.name)
|
||||
|
||||
|
||||
def show_usage():
|
||||
print "Usage: %s [-f input_file_name] [-m output_mode]" % sys.argv[0]
|
||||
sys.exit(1)
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
file_name = "gl_API.xml"
|
||||
|
||||
try:
|
||||
(args, trail) = getopt.getopt(sys.argv[1:], "f:m:")
|
||||
except Exception,e:
|
||||
show_usage()
|
||||
|
||||
mode = "proto"
|
||||
for (arg,val) in args:
|
||||
if arg == "-f":
|
||||
file_name = val
|
||||
elif arg == "-m":
|
||||
mode = val
|
||||
|
||||
if mode == "proto":
|
||||
dh = PrintGlxProtoStubs()
|
||||
elif mode == "init_c":
|
||||
dh = PrintGlxProtoInit_c()
|
||||
elif mode == "init_h":
|
||||
dh = PrintGlxProtoInit_h()
|
||||
elif mode == "size_c":
|
||||
dh = PrintGlxSizeStubs()
|
||||
elif mode == "size_h":
|
||||
dh = PrintGlxSizeStubs_h()
|
||||
else:
|
||||
show_usage()
|
||||
|
||||
parser = make_parser()
|
||||
parser.setFeature(feature_namespaces, 0)
|
||||
parser.setContentHandler(dh)
|
||||
|
||||
f = open(file_name)
|
||||
|
||||
dh.printHeader()
|
||||
parser.parse(f)
|
||||
dh.printFooter()
|
||||
Reference in New Issue
Block a user