import os
import xml.etree.cElementTree as et
+from collections import OrderedDict, namedtuple
from mako.template import Template
from radv_extensions import *
# function and a power-of-two size table. The prime numbers are determined
# experimentally.
+# We currently don't use layers in radv, but keeping the ability for anv
+# anyways, so we can use it for device groups.
+LAYERS = [
+ 'radv'
+]
+
TEMPLATE_H = Template("""\
/* This file generated from ${filename}, don't edit directly. */
union {
void *entrypoints[${len(entrypoints)}];
struct {
- % for _, name, _, _, _, guard in entrypoints:
- % if guard is not None:
-#ifdef ${guard}
- PFN_vk${name} ${name};
+ % for e in entrypoints:
+ % if e.guard is not None:
+#ifdef ${e.guard}
+ PFN_${e.name} ${e.name};
#else
- void *${name};
+ void *${e.name};
# endif
% else:
- PFN_vk${name} ${name};
+ PFN_${e.name} ${e.name};
% endif
% endfor
};
};
};
-% for type_, name, args, num, h, guard in entrypoints:
- % if guard is not None:
-#ifdef ${guard}
+% for e in entrypoints:
+ % if e.guard is not None:
+#ifdef ${e.guard}
% endif
- ${type_} radv_${name}(${args});
- % if guard is not None:
-#endif // ${guard}
+ % for layer in LAYERS:
+ ${e.return_type} ${e.prefixed_name(layer)}(${e.decl_params()});
+ % endfor
+ % if e.guard is not None:
+#endif // ${e.guard}
% endif
% endfor
""", output_encoding='utf-8')
*/
static const char strings[] =
-% for _, name, _, _, _, _ in entrypoints:
- "vk${name}\\0"
+% for e in entrypoints:
+ "${e.name}\\0"
% endfor
;
static const struct radv_entrypoint entrypoints[] = {
-% for _, name, _, num, h, _ in entrypoints:
- [${num}] = { ${offsets[num]}, ${'{:0=#8x}'.format(h)} }, /* vk${name} */
+% for e in entrypoints:
+ [${e.num}] = { ${offsets[e.num]}, ${'{:0=#8x}'.format(e.get_c_hash())} }, /* ${e.name} */
% endfor
};
* either pick the correct entry point.
*/
-% for layer in ['radv']:
- % for type_, name, args, _, _, guard in entrypoints:
- % if guard is not None:
-#ifdef ${guard}
+% for layer in LAYERS:
+ % for e in entrypoints:
+ % if e.guard is not None:
+#ifdef ${e.guard}
% endif
- ${type_} ${layer}_${name}(${args}) __attribute__ ((weak));
- % if guard is not None:
-#endif // ${guard}
+ ${e.return_type} ${e.prefixed_name(layer)}(${e.decl_params()}) __attribute__ ((weak));
+ % if e.guard is not None:
+#endif // ${e.guard}
% endif
% endfor
const struct radv_dispatch_table ${layer}_layer = {
- % for _, name, args, _, _, guard in entrypoints:
- % if guard is not None:
-#ifdef ${guard}
+ % for e in entrypoints:
+ % if e.guard is not None:
+#ifdef ${e.guard}
% endif
- .${name} = ${layer}_${name},
- % if guard is not None:
-#endif // ${guard}
+ .${e.name} = ${e.prefixed_name(layer)},
+ % if e.guard is not None:
+#endif // ${e.guard}
% endif
% endfor
};
PRIME_FACTOR = 5024183
PRIME_STEP = 19
-
def cal_hash(name):
"""Calculate the same hash value that Mesa will calculate in C."""
return functools.reduce(
lambda h, c: (h * PRIME_FACTOR + ord(c)) & U32_MASK, name, 0)
+EntrypointParam = namedtuple('EntrypointParam', 'type name decl')
+
+class Entrypoint(object):
+ def __init__(self, name, return_type, params, guard = None):
+ self.name = name
+ self.return_type = return_type
+ self.params = params
+ self.guard = guard
+ self.enabled = False
+ self.num = None
+ # Extensions which require this entrypoint
+ self.core_version = None
+ self.extension = None
+
+ def prefixed_name(self, prefix):
+ assert self.name.startswith('vk')
+ return prefix + '_' + self.name[2:]
+
+ def decl_params(self):
+ return ', '.join(p.decl for p in self.params)
+
+ def call_params(self):
+ return ', '.join(p.name for p in self.params)
+
+ def get_c_hash(self):
+ return cal_hash(self.name)
def get_entrypoints(doc, entrypoints_to_defines, start_index):
"""Extract the entry points from the registry."""
- entrypoints = []
+ entrypoints = OrderedDict()
+
+ for command in doc.findall('./commands/command'):
+ ret_type = command.find('./proto/type').text
+ fullname = command.find('./proto/name').text
+ params = [EntrypointParam(
+ type = p.find('./type').text,
+ name = p.find('./name').text,
+ decl = ''.join(p.itertext())
+ ) for p in command.findall('./param')]
+ guard = entrypoints_to_defines.get(fullname)
+ # They really need to be unique
+ assert fullname not in entrypoints
+ entrypoints[fullname] = Entrypoint(fullname, ret_type, params, guard)
enabled_commands = set()
for feature in doc.findall('./feature'):
assert feature.attrib['api'] == 'vulkan'
- if VkVersion(feature.attrib['number']) > MAX_API_VERSION:
+ version = VkVersion(feature.attrib['number'])
+ if version > MAX_API_VERSION:
continue
for command in feature.findall('./require/command'):
- enabled_commands.add(command.attrib['name'])
+ e = entrypoints[command.attrib['name']]
+ e.enabled = True
+ assert e.core_version is None
+ e.core_version = version
- supported = set(ext.name for ext in EXTENSIONS)
+ supported_exts = dict((ext.name, ext) for ext in EXTENSIONS)
for extension in doc.findall('.extensions/extension'):
- if extension.attrib['name'] not in supported:
+ ext_name = extension.attrib['name']
+ if ext_name not in supported_exts:
continue
if extension.attrib['supported'] != 'vulkan':
continue
- for command in extension.findall('./require/command'):
- enabled_commands.add(command.attrib['name'])
-
- index = start_index
- for command in doc.findall('./commands/command'):
- type = command.find('./proto/type').text
- fullname = command.find('./proto/name').text
+ ext = supported_exts[ext_name]
+ ext.type = extension.attrib['type']
- if fullname not in enabled_commands:
- continue
-
- shortname = fullname[2:]
- params = (''.join(p.itertext()) for p in command.findall('./param'))
- params = ', '.join(params)
- guard = entrypoints_to_defines.get(fullname)
- entrypoints.append((type, shortname, params, index, cal_hash(fullname), guard))
- index += 1
+ for command in extension.findall('./require/command'):
+ e = entrypoints[command.attrib['name']]
+ e.enabled = True
+ assert e.core_version is None
+ assert e.extension is None
+ e.extension = ext
- return entrypoints
+ return [e for e in entrypoints.itervalues() if e.enabled]
def get_entrypoints_defines(doc):
"""Generate the C code."""
i = 0
offsets = []
- for _, name, _, _, _, _ in entrypoints:
+ for e in entrypoints:
offsets.append(i)
- i += 2 + len(name) + 1
+ i += len(e.name) + 1
mapping = [NONE] * HASH_SIZE
collisions = [0] * 10
- for _, name, _, num, h, _ in entrypoints:
+ for e in entrypoints:
level = 0
+ h = e.get_c_hash()
while mapping[h & HASH_MASK] != NONE:
h = h + PRIME_STEP
level = level + 1
collisions[9] += 1
else:
collisions[level] += 1
- mapping[h & HASH_MASK] = num
+ mapping[h & HASH_MASK] = e.num
return TEMPLATE_C.render(entrypoints=entrypoints,
+ LAYERS=LAYERS,
offsets=offsets,
collisions=collisions,
mapping=mapping,
entrypoints += get_entrypoints(doc, get_entrypoints_defines(doc),
start_index=len(entrypoints))
+ for num, e in enumerate(entrypoints):
+ e.num = num
+
# For outputting entrypoints.h we generate a radv_EntryPoint() prototype
# per entry point.
with open(os.path.join(args.outdir, 'radv_entrypoints.h'), 'wb') as f:
f.write(TEMPLATE_H.render(entrypoints=entrypoints,
+ LAYERS=LAYERS,
filename=os.path.basename(__file__)))
with open(os.path.join(args.outdir, 'radv_entrypoints.c'), 'wb') as f:
f.write(gen_code(entrypoints))
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