import argparse
import functools
+import math
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.alias:
+ <% continue %>
+ % endif
+ % 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 // ${e.guard}
% endif
% endfor
""", output_encoding='utf-8')
#include "radv_private.h"
-struct radv_entrypoint {
+struct string_map_entry {
uint32_t name;
uint32_t hash;
+ uint32_t num;
};
-/* We use a big string constant to avoid lots of reloctions from the entry
+/* We use a big string constant to avoid lots of relocations from the entry
* point table to lots of little strings. The entries in the entry point table
* store the index into this big string.
*/
static const char strings[] =
-% for _, name, _, _, _, _ in entrypoints:
- "vk${name}\\0"
+% for s in strmap.sorted_strings:
+ "${s.string}\\0"
% endfor
;
-static const struct radv_entrypoint entrypoints[] = {
-% for _, name, _, num, h, _ in entrypoints:
- [${num}] = { ${offsets[num]}, ${'{:0=#8x}'.format(h)} }, /* vk${name} */
+static const struct string_map_entry string_map_entries[] = {
+% for s in strmap.sorted_strings:
+ { ${s.offset}, ${'{:0=#8x}'.format(s.hash)}, ${s.num} }, /* ${s.string} */
+% endfor
+};
+
+/* Hash table stats:
+ * size ${len(strmap.sorted_strings)} entries
+ * collisions entries:
+% for i in range(10):
+ * ${i}${'+' if i == 9 else ' '} ${strmap.collisions[i]}
+% endfor
+ */
+
+#define none 0xffff
+static const uint16_t string_map[${strmap.hash_size}] = {
+% for e in strmap.mapping:
+ ${ '{:0=#6x}'.format(e) if e >= 0 else 'none' },
% 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.alias:
+ <% continue %>
+ % endif
+ % 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
};
return radv_layer.entrypoints[index];
}
-/* Hash table stats:
- * size ${hash_size} entries
- * collisions entries:
-% for i in xrange(10):
- * ${i}${'+' if i == 9 else ''} ${collisions[i]}
-% endfor
+/** Return true if the core version or extension in which the given entrypoint
+ * is defined is enabled.
+ *
+ * If instance is NULL, we only allow the 3 commands explicitly allowed by the vk
+ * spec.
+ *
+ * If device is NULL, all device extensions are considered enabled.
*/
+static bool
+radv_entrypoint_is_enabled(int index, uint32_t core_version,
+ const struct radv_instance_extension_table *instance,
+ const struct radv_device_extension_table *device)
+{
+ switch (index) {
+% for e in entrypoints:
+ case ${e.num}:
+ % if not e.device_command:
+ if (device) return false;
+ % endif
+ % if e.name == 'vkCreateInstance' or e.name == 'vkEnumerateInstanceExtensionProperties' or e.name == 'vkEnumerateInstanceLayerProperties' or e.name == 'vkEnumerateInstanceVersion':
+ return !device;
+ % elif e.core_version:
+ return instance && ${e.core_version.c_vk_version()} <= core_version;
+ % elif e.extensions:
+ % for ext in e.extensions:
+ % if ext.type == 'instance':
+ if (instance && instance->${ext.name[3:]}) return true;
+ % else:
+ if (instance && (!device || device->${ext.name[3:]})) return true;
+ % endif
+ %endfor
+ return false;
+ % else:
+ return instance;
+ % endif
+% endfor
+ default:
+ return false;
+ }
+}
-#define none ${'{:#x}'.format(none)}
-static const uint16_t map[] = {
-% for i in xrange(0, hash_size, 8):
- % for j in xrange(i, i + 8):
- ## This is 6 because the 0x is counted in the length
- % if mapping[j] & 0xffff == 0xffff:
- none,
- % else:
- ${'{:0=#6x}'.format(mapping[j] & 0xffff)},
- % endif
- % endfor
+static bool
+radv_entrypoint_is_enabled_physical_device(int index, uint32_t core_version,
+ const struct radv_instance_extension_table *instance)
+{
+ switch (index) {
+% for e in entrypoints:
+ %if e.physical_device_command:
+ case ${e.num}:
+ % if e.core_version:
+ return instance && ${e.core_version.c_vk_version()} <= core_version;
+ % elif e.extensions:
+ % for ext in e.extensions:
+ % if ext.type == 'instance':
+ if (instance && instance->${ext.name[3:]}) return true;
+ % else:
+ return true;
+ % endif
+ %endfor
+ return false;
+ % else:
+ return instance;
+ % endif
+ %endif
% endfor
-};
+ default:
+ return false;
+ }
+}
-void *
+static int
radv_lookup_entrypoint(const char *name)
{
- static const uint32_t prime_factor = ${prime_factor};
- static const uint32_t prime_step = ${prime_step};
- const struct radv_entrypoint *e;
- uint32_t hash, h, i;
+ static const uint32_t prime_factor = ${strmap.prime_factor};
+ static const uint32_t prime_step = ${strmap.prime_step};
+ const struct string_map_entry *e;
+ uint32_t hash, h;
+ uint16_t i;
const char *p;
hash = 0;
for (p = name; *p; p++)
- hash = hash * prime_factor + *p;
+ hash = hash * prime_factor + *p;
h = hash;
- do {
- i = map[h & ${hash_mask}];
- if (i == none)
- return NULL;
- e = &entrypoints[i];
- h += prime_step;
- } while (e->hash != hash);
-
- if (strcmp(name, strings + e->name) != 0)
+ while (1) {
+ i = string_map[h & ${strmap.hash_mask}];
+ if (i == none)
+ return -1;
+ e = &string_map_entries[i];
+ if (e->hash == hash && strcmp(name, strings + e->name) == 0)
+ return e->num;
+ h += prime_step;
+ }
+
+ return -1;
+}
+
+void *
+radv_lookup_entrypoint_unchecked(const char *name)
+{
+ int index = radv_lookup_entrypoint(name);
+ if (index < 0)
return NULL;
+ return radv_resolve_entrypoint(index);
+}
- return radv_resolve_entrypoint(i);
-}""", output_encoding='utf-8')
+void *
+radv_lookup_entrypoint_checked(const char *name,
+ uint32_t core_version,
+ const struct radv_instance_extension_table *instance,
+ const struct radv_device_extension_table *device)
+{
+ int index = radv_lookup_entrypoint(name);
+ if (index < 0 || !radv_entrypoint_is_enabled(index, core_version, instance, device))
+ return NULL;
+ return radv_resolve_entrypoint(index);
+}
+
+void *
+radv_lookup_physical_device_entrypoint_checked(const char *name,
+ uint32_t core_version,
+ const struct radv_instance_extension_table *instance)
+{
+ int index = radv_lookup_entrypoint(name);
+ if (index < 0 || !radv_entrypoint_is_enabled_physical_device(index, core_version, instance))
+ return NULL;
+ return radv_resolve_entrypoint(index);
+}
+
+""", output_encoding='utf-8')
-NONE = 0xffff
-HASH_SIZE = 256
U32_MASK = 2**32 - 1
-HASH_MASK = HASH_SIZE - 1
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)
-
+def round_to_pow2(x):
+ return 2**int(math.ceil(math.log(x, 2)))
+
+class StringIntMapEntry(object):
+ def __init__(self, string, num):
+ self.string = string
+ self.num = num
+
+ # Calculate the same hash value that we will calculate in C.
+ h = 0
+ for c in string:
+ h = ((h * PRIME_FACTOR) + ord(c)) & U32_MASK
+ self.hash = h
+
+ self.offset = None
+
+class StringIntMap(object):
+ def __init__(self):
+ self.baked = False
+ self.strings = dict()
+
+ def add_string(self, string, num):
+ assert not self.baked
+ assert string not in self.strings
+ assert num >= 0 and num < 2**31
+ self.strings[string] = StringIntMapEntry(string, num)
+
+ def bake(self):
+ self.sorted_strings = \
+ sorted(self.strings.values(), key=lambda x: x.string)
+ offset = 0
+ for entry in self.sorted_strings:
+ entry.offset = offset
+ offset += len(entry.string) + 1
+
+ # Save off some values that we'll need in C
+ self.hash_size = round_to_pow2(len(self.strings) * 1.25)
+ self.hash_mask = self.hash_size - 1
+ self.prime_factor = PRIME_FACTOR
+ self.prime_step = PRIME_STEP
+
+ self.mapping = [-1] * self.hash_size
+ self.collisions = [0] * 10
+ for idx, s in enumerate(self.sorted_strings):
+ level = 0
+ h = s.hash
+ while self.mapping[h & self.hash_mask] >= 0:
+ h = h + PRIME_STEP
+ level = level + 1
+ self.collisions[min(level, 9)] += 1
+ self.mapping[h & self.hash_mask] = idx
+
+EntrypointParam = namedtuple('EntrypointParam', 'type name decl')
+
+class EntrypointBase(object):
+ def __init__(self, name):
+ self.name = name
+ self.alias = None
+ self.guard = None
+ self.enabled = False
+ self.num = None
+ # Extensions which require this entrypoint
+ self.core_version = None
+ self.extensions = []
+
+class Entrypoint(EntrypointBase):
+ def __init__(self, name, return_type, params, guard = None):
+ super(Entrypoint, self).__init__(name)
+ self.return_type = return_type
+ self.params = params
+ self.guard = guard
+ self.device_command = len(params) > 0 and (params[0].type == 'VkDevice' or params[0].type == 'VkQueue' or params[0].type == 'VkCommandBuffer')
+ self.physical_device_command = len(params) > 0 and params[0].type == 'VkPhysicalDevice'
+
+ 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)
+
+class EntrypointAlias(EntrypointBase):
+ def __init__(self, name, entrypoint):
+ super(EntrypointAlias, self).__init__(name)
+ self.alias = entrypoint
+ self.device_command = entrypoint.device_command
+ self.physical_device_command = entrypoint.physical_device_command
+
+ def prefixed_name(self, prefix):
+ return self.alias.prefixed_name(prefix)
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'):
+ if 'alias' in command.attrib:
+ alias = command.attrib['name']
+ target = command.attrib['alias']
+ entrypoints[alias] = EntrypointAlias(alias, entrypoints[target])
+ else:
+ name = command.find('./proto/name').text
+ ret_type = command.find('./proto/type').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(name)
+ # They really need to be unique
+ assert name not in entrypoints
+ entrypoints[name] = Entrypoint(name, 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
- assert extension.attrib['supported'] == 'vulkan'
- for command in extension.findall('./require/command'):
- enabled_commands.add(command.attrib['name'])
+ ext = supported_exts[ext_name]
+ ext.type = extension.attrib['type']
- index = start_index
- for command in doc.findall('./commands/command'):
- type = command.find('./proto/type').text
- fullname = command.find('./proto/name').text
-
- if fullname not in enabled_commands:
- continue
+ for command in extension.findall('./require/command'):
+ e = entrypoints[command.attrib['name']]
+ e.enabled = True
+ assert e.core_version is None
+ e.extensions.append(ext)
- 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
+ # if the base command is not supported by the driver yet, don't alias aliases
+ for e in entrypoints.values():
+ if e.alias and not e.alias.enabled:
+ e_clone = copy.deepcopy(e.alias)
+ e_clone.enabled = True
+ e_clone.name = e.name
+ entrypoints[e.name] = e_clone
- return entrypoints
+ return [e for e in entrypoints.values() if e.enabled]
def get_entrypoints_defines(doc):
fullname = entrypoint.attrib['name']
entrypoints_to_defines[fullname] = define
+ platform_define = {}
+ for platform in doc.findall('./platforms/platform'):
+ name = platform.attrib['name']
+ define = platform.attrib['protect']
+ platform_define[name] = define
+
+ for extension in doc.findall('./extensions/extension[@platform]'):
+ platform = extension.attrib['platform']
+ define = platform_define[platform]
+
+ for entrypoint in extension.findall('./require/command'):
+ fullname = entrypoint.attrib['name']
+ entrypoints_to_defines[fullname] = define
+
return entrypoints_to_defines
def gen_code(entrypoints):
"""Generate the C code."""
- i = 0
- offsets = []
- for _, name, _, _, _, _ in entrypoints:
- offsets.append(i)
- i += 2 + len(name) + 1
-
- mapping = [NONE] * HASH_SIZE
- collisions = [0] * 10
- for _, name, _, num, h, _ in entrypoints:
- level = 0
- while mapping[h & HASH_MASK] != NONE:
- h = h + PRIME_STEP
- level = level + 1
- if level > 9:
- collisions[9] += 1
- else:
- collisions[level] += 1
- mapping[h & HASH_MASK] = num
+ strmap = StringIntMap()
+ for e in entrypoints:
+ strmap.add_string(e.name, e.num)
+ strmap.bake()
return TEMPLATE_C.render(entrypoints=entrypoints,
- offsets=offsets,
- collisions=collisions,
- mapping=mapping,
- hash_mask=HASH_MASK,
- prime_step=PRIME_STEP,
- prime_factor=PRIME_FACTOR,
- none=NONE,
- hash_size=HASH_SIZE,
+ LAYERS=LAYERS,
+ strmap=strmap,
filename=os.path.basename(__file__))
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))
projects / mesa.git / blobdiff