diff options
| -rw-r--r-- | src/mapi/glapi/gen/glX_proto_size.py | 77 |
1 files changed, 1 insertions, 76 deletions
diff --git a/src/mapi/glapi/gen/glX_proto_size.py b/src/mapi/glapi/gen/glX_proto_size.py index b8625a65f5..e4d685b63d 100644 --- a/src/mapi/glapi/gen/glX_proto_size.py +++ b/src/mapi/glapi/gen/glX_proto_size.py @@ -104,80 +104,6 @@ class glx_enum_function(object): def is_set(self): return self.mode - def PrintUsingTable(self): - """Emit the body of the __gl*_size function using a pair - of look-up tables and a mask. The mask is calculated such - that (e & mask) is unique for all the valid values of e for - this function. The result of (e & mask) is used as an index - into the first look-up table. If it matches e, then the - same entry of the second table is returned. Otherwise zero - is returned. - - It seems like this should cause better code to be generated. - However, on x86 at least, the resulting .o file is about 20% - larger then the switch-statment version. I am leaving this - code in because the results may be different on other - platforms (e.g., PowerPC or x86-64).""" - - return 0 - count = 0 - for a in self.enums: - count += 1 - - if -1 in self.count: - return 0 - - # Determine if there is some mask M, such that M = (2^N) - 1, - # that will generate unique values for all of the enums. - - mask = 0 - for i in [1, 2, 3, 4, 5, 6, 7, 8]: - mask = (1 << i) - 1 - - fail = 0 - for a in self.enums: - for b in self.enums: - if a != b: - if (a & mask) == (b & mask): - fail = 1 - - if not fail: - break - else: - mask = 0 - - if (mask != 0) and (mask < (2 * count)): - masked_enums = {} - masked_count = {} - - for i in xrange(mask + 1): - masked_enums[i] = "0" - masked_count[i] = 0 - - for c in self.count: - for e in self.count[c]: - i = e & mask - enum_obj = self.enums[e][0] - masked_enums[i] = '0x%04x /* %s */' % (e, enum_obj.name) - masked_count[i] = c - - print ' static const GLushort a[%u] = {' % (mask + 1) - for e in masked_enums: - print ' %s, ' % (masked_enums[e]) - print ' };' - - print ' static const GLubyte b[%u] = {' % (mask + 1) - for c in masked_count: - print ' %u, ' % (masked_count[c]) - print ' };' - - print ' const unsigned idx = (e & 0x%02xU);' % (mask) - print '' - print ' return (e == a[idx]) ? (GLint) b[idx] : 0;' - return True - else: - return False - def PrintUsingSwitch(self, name): """Emit the body of the __gl*_size function using a switch-statement.""" @@ -221,8 +147,7 @@ class glx_enum_function(object): print '__gl%s_size( GLenum e )' % (name) print '{' - if not self.PrintUsingTable(): - self.PrintUsingSwitch(name) + self.PrintUsingSwitch(name) print '}' print '' |