Move common GLX code to glX_XML.py. This will make adding glX_proto_recv.py
easier later on.
This commit is contained in:
Ian Romanick
@@ -30,445 +30,14 @@ 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 glX_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 + 1):
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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_real_value(self):
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if self.glx_vendorpriv != 0:
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if self.needs_reply():
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return 17
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else:
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return 16
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else:
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return self.opcode_value()
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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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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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class GlxProto(gl_XML.FilterGLAPISpecBase):
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name = "glX_proto_send.py (from Mesa)"
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class PrintGlxProtoStubs(glX_XML.GlxProto):
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def __init__(self):
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gl_XML.FilterGLAPISpecBase.__init__(self)
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self.factory = glXItemFactory()
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self.glx_enum_functions = {}
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def endElement(self, name):
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if name == 'OpenGLAPI':
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# Once all the parsing is done, we have to go back and
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# fix-up some cross references between different
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# functions.
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for k in self.functions:
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f = self.functions[k]
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if f.vectorequiv != None:
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equiv = self.find_function(f.vectorequiv)
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if equiv != None:
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f.glx_doubles_in_order = equiv.glx_doubles_in_order
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f.glx_rop = equiv.glx_rop
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else:
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raise RuntimeError("Could not find the vector equiv. function %s for %s!" % (f.name, f.vectorequiv))
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else:
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gl_XML.FilterGLAPISpecBase.endElement(self, name)
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return
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class PrintGlxProtoStubs(GlxProto):
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def __init__(self):
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GlxProto.__init__(self)
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glX_XML.GlxProto.__init__(self)
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self.last_category = ""
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self.license = license.bsd_license_template % ( "(C) Copyright IBM Corporation 2004", "IBM")
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self.generic_sizes = [3, 4, 6, 8, 12, 16, 24, 32]
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@@ -484,8 +53,8 @@ class PrintGlxProtoStubs(GlxProto):
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print ''
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print '#define __GLX_PAD(n) (((n) + 3) & ~3)'
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print ''
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printFastcall()
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printNoinline()
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glX_XML.printFastcall()
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glX_XML.printNoinline()
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print ''
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print '/* If the size and opcode values are known at compile-time, this will, on'
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print ' * x86 at least, emit them with a single instruction.'
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@@ -750,9 +319,9 @@ generic_%u_byte( GLint rop, const void * ptr )
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return
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class PrintGlxProtoInit_c(GlxProto):
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class PrintGlxProtoInit_c(glX_XML.GlxProto):
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def __init__(self):
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GlxProto.__init__(self)
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glX_XML.GlxProto.__init__(self)
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self.last_category = ""
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self.license = license.bsd_license_template % ( \
|
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"""Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
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@@ -824,9 +393,9 @@ __GLapi * __glXNewIndirectAPI( void )
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print ' glAPI->%s = __indirect_gl%s;' % (f.name, f.name)
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class PrintGlxProtoInit_h(GlxProto):
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class PrintGlxProtoInit_h(glX_XML.GlxProto):
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def __init__(self):
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GlxProto.__init__(self)
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glX_XML.GlxProto.__init__(self)
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self.last_category = ""
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self.license = license.bsd_license_template % ( \
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"""Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
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@@ -847,7 +416,7 @@ class PrintGlxProtoInit_h(GlxProto):
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# define _INDIRECT_H_
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"""
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printVisibility( "HIDDEN", "hidden" )
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glX_XML.printVisibility( "HIDDEN", "hidden" )
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def printRealFooter(self):
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@@ -859,9 +428,9 @@ class PrintGlxProtoInit_h(GlxProto):
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print 'extern HIDDEN %s __indirect_gl%s(%s);' % (f.fn_return_type, f.name, f.get_parameter_string())
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class PrintGlxSizeStubs(GlxProto):
|
||||
class PrintGlxSizeStubs(glX_XML.GlxProto):
|
||||
def __init__(self):
|
||||
GlxProto.__init__(self)
|
||||
glX_XML.GlxProto.__init__(self)
|
||||
self.license = license.bsd_license_template % ( "(C) Copyright IBM Corporation 2004", "IBM")
|
||||
self.aliases = []
|
||||
self.glx_enum_sigs = {}
|
||||
@@ -872,11 +441,11 @@ class PrintGlxSizeStubs(GlxProto):
|
||||
print '#include "indirect_size.h"'
|
||||
|
||||
print ''
|
||||
printPure()
|
||||
glX_XML.printPure()
|
||||
print ''
|
||||
printFastcall()
|
||||
glX_XML.printFastcall()
|
||||
print ''
|
||||
printVisibility( "INTERNAL", "internal" )
|
||||
glX_XML.printVisibility( "INTERNAL", "internal" )
|
||||
print ''
|
||||
print ''
|
||||
print '#ifdef HAVE_ALIAS'
|
||||
@@ -911,9 +480,9 @@ class PrintGlxSizeStubs(GlxProto):
|
||||
|
||||
|
||||
|
||||
class PrintGlxSizeStubs_h(GlxProto):
|
||||
class PrintGlxSizeStubs_h(glX_XML.GlxProto):
|
||||
def __init__(self):
|
||||
GlxProto.__init__(self)
|
||||
glX_XML.GlxProto.__init__(self)
|
||||
self.license = license.bsd_license_template % ( "(C) Copyright IBM Corporation 2004", "IBM")
|
||||
self.aliases = []
|
||||
self.glx_enum_sigs = {}
|
||||
@@ -932,11 +501,11 @@ class PrintGlxSizeStubs_h(GlxProto):
|
||||
# define _GLXSIZE_H_
|
||||
|
||||
"""
|
||||
printPure();
|
||||
glX_XML.printPure();
|
||||
print ''
|
||||
printFastcall();
|
||||
glX_XML.printFastcall();
|
||||
print ''
|
||||
printVisibility( "INTERNAL", "internal" );
|
||||
glX_XML.printVisibility( "INTERNAL", "internal" );
|
||||
print ''
|
||||
|
||||
def printRealFooter(self):
|
||||
|
||||
Reference in New Issue
Block a user