glapi: remove support for dynamically-registered functions

I think this was for when libglapi was older than DRI drivers and didn't
know all functions.

Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33634>

src/mapi/glapi/gen/gl_apitemp.py

@@ -195,13 +195,6 @@ _glapi_proc DISPATCH_TABLE_NAME[] = {""")
         for f in api.functionIterateByOffset():
             print('   TABLE_ENTRY(%s),' % (f.dispatch_name()))
 
-        print('   /* A whole bunch of no-op functions.  These might be called')
-        print('    * when someone tries to call a dynamically-registered')
-        print('    * extension function without a current rendering context.')
-        print('    */')
-        for i in range(1, 100):
-            print('   TABLE_ENTRY(Unused),')
-
         print('};')
         print('#endif /* DISPATCH_TABLE_NAME */')
         print('')

src/mapi/mapi_abi.py

@@ -37,9 +37,6 @@ import gl_XML
 import glX_XML
 
 
-# number of dynamic entries
-ABI_NUM_DYNAMIC_ENTRIES = 256
-
 class ABIEntry(object):
     """Represent an ABI entry."""
 
@@ -271,9 +268,7 @@ class ABIPrinter(object):
     def c_mapi_table(self):
         """Return defines of the dispatch table size."""
         num_static_entries = self.entries[-1].slot + 1
-        return ('#define MAPI_TABLE_NUM_STATIC %d\n' + \
-                '#define MAPI_TABLE_NUM_DYNAMIC %d') % (
-                        num_static_entries, ABI_NUM_DYNAMIC_ENTRIES)
+        return '#define MAPI_TABLE_NUM_STATIC %d' % (num_static_entries)
 
     def _c_function(self, ent, prefix, mangle=False, stringify=False):
         """Return the function name of an entry."""
@@ -431,8 +426,6 @@ class ABIPrinter(object):
         if use_generic:
             entries = [self.noop_generic] * len(entries)
 
-        entries.extend([self.noop_generic] * ABI_NUM_DYNAMIC_ENTRIES)
-
         pre = self.indent + '(mapi_func) '
         return pre + (',\n' + pre).join(entries)
 

src/mapi/new/genCommon.py

@@ -35,8 +35,6 @@ GLAPI = os.path.join(os.path.dirname(__file__), "..", "glapi", "gen")
 sys.path.insert(0, GLAPI)
 import static_data
 
-MAPI_TABLE_NUM_DYNAMIC = 4096
-
 _LIBRARY_FEATURE_NAMES = {
     # libGL and libGLdiapatch both include every function.
     "gl" : None,

src/mapi/new/gen_gldispatch_mapi.py

@@ -86,7 +86,6 @@ def generate_defines(functions):
 def generate_table(functions, allFunctions):
     text = "#ifdef MAPI_TMP_TABLE\n"
     text += "#define MAPI_TABLE_NUM_STATIC %d\n" % (len(allFunctions))
-    text += "#define MAPI_TABLE_NUM_DYNAMIC %d\n" % (genCommon.MAPI_TABLE_NUM_DYNAMIC,)
     text += "#undef MAPI_TMP_TABLE\n"
     text += "#endif /* MAPI_TMP_TABLE */\n"
     return text
@@ -111,15 +110,11 @@ def generate_noop_array(functions):
     text += "const mapi_func table_noop_array[] = {\n"
     for func in functions:
         text += "   (mapi_func) noop{f.basename},\n".format(f=func)
-    for i in range(genCommon.MAPI_TABLE_NUM_DYNAMIC - 1):
-        text += "   (mapi_func) noop_generic,\n"
-    text += "   (mapi_func) noop_generic\n"
     text += "};\n\n"
     text += "#else /* !MESA_DEBUG */\n\n"
     text += "const mapi_func table_noop_array[] = {\n"
-    for i in range(len(functions) + genCommon.MAPI_TABLE_NUM_DYNAMIC - 1):
+    for i in range(len(functions)):
         text += "   (mapi_func) noop_generic,\n"
-    text += "   (mapi_func) noop_generic\n"
 
     text += "};\n\n"
     text += "#endif /* MESA_DEBUG */\n"

src/mapi/shared-glapi/table.h

@@ -33,7 +33,7 @@
 #define MAPI_TMP_TABLE
 #include "mapi_tmp.h"
 
-#define MAPI_TABLE_NUM_SLOTS (MAPI_TABLE_NUM_STATIC + MAPI_TABLE_NUM_DYNAMIC)
+#define MAPI_TABLE_NUM_SLOTS MAPI_TABLE_NUM_STATIC
 
 struct _glapi_table;