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Lunatic: fix randgen module after md4 removal, run DEFS_BC_SIZE cmd only once.

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git-svn-id: https://svn.eduke32.com/eduke32@3785 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned 2013-05-17 10:41:57 +00:00
parent f8cc394fa3
commit a082ec76dd
5 changed files with 27 additions and 21 deletions
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12
polymer/eduke32/Makefile.common
View file

@ -441,10 +441,14 @@ ifneq ($(LUNATIC),0)
endif
BASECOMMONFLAGS+= -I$(SRC)/lunatic -DLUNATIC
# Determine size of defs.ilua bytecode
# XXX: Runs way too many times because it's a "recursively expanded" variable.
DEFS_BC_SIZE = $(shell $(LUAJIT) -bg -t h $(SRC)/lunatic/defs.ilua -)
BASECOMMONFLAGS+= -DLUNATIC_DEFS_BC_SIZE=$(word 3, $(DEFS_BC_SIZE))
# Determine size of defs.ilua bytecode once.
ifndef DEFS_BC_SIZE
DEFS_BC_SIZE := $(shell $(LUAJIT) -bg -t h source/lunatic/defs.ilua -)
DEFS_BC_SIZE := $(word 3, $(DEFS_BC_SIZE))
# Pass the bytecode size to the sub-makes, too.
export DEFS_BC_SIZE
endif
BASECOMMONFLAGS+= -DLUNATIC_DEFS_BC_SIZE=$(DEFS_BC_SIZE)
ifeq ($(PLATFORM),WINDOWS)
BASELIBS+= -lluajit

1
polymer/eduke32/source/lunatic/dynsymlist
View file

@ -3,6 +3,7 @@ engine_main_arrays_are_static;
engine_v8;
saveboard_maptext;
loadboard_maptext;
sector;
wall;

1
polymer/eduke32/source/lunatic/dynsymlist_m32
View file

@ -3,6 +3,7 @@ engine_main_arrays_are_static;
engine_v8;
saveboard_maptext;
loadboard_maptext;
sector;
wall;

26
polymer/eduke32/source/lunatic/randgen.lua
View file

@ -20,7 +20,6 @@ typedef struct {
} rng_jkiss_t;
typedef union { unsigned char u[16]; double d[2]; } uchar_double_u_t;
typedef union { unsigned char u[16]; uint32_t i[4]; } uchar_uint_u_t;
]]
-- PRNG functions
@ -28,9 +27,15 @@ decl[[
uint32_t rand_jkiss_u32(rng_jkiss_t *s);
double rand_jkiss_dbl(rng_jkiss_t *s);
void md4once(const unsigned char *block, unsigned int len, unsigned char digest [16]);
uint32_t crc32once(uint8_t *blk, uint32_t len);
]]
local function get_rand_u32(tin)
tin.d[0] = ffiC.gethitickms() % 1
tin.d[1] = ffiC.gethitickms() % 1
return ffiC.crc32once(tin.u, 16)
end
local mt = {
__tostring = function(s)
return "rand.new("..s.x..","..s.y..","..s.z..","..s.c..")"
@ -41,23 +46,18 @@ local mt = {
getdbl = ffiC.rand_jkiss_dbl,
-- Initialize the JKISS PRNG using the MD4 of the lower bits of the
-- profiling timer
-- profiling timer.
init_time_md4 = function(s)
local tin = ffi.new("uchar_double_u_t")
local tout = ffi.new("uchar_uint_u_t")
local tout = ffi.new("uint32_t [4]")
repeat
tin.d[0] = ffiC.gethitickms() % 1
tin.d[1] = ffiC.gethitickms() % 1
ffiC.md4once(tin.u, 16, tout.u)
s.y = tout.u[1]
s.y = get_rand_u32()
until (s.y ~= 0) -- y must not be zero!
s.x = tout.u[0]
s.z = tout.u[2]
s.c = tout.u[3] % 698769068 + 1 -- Should be less than 698769069
s.x = get_rand_u32()
s.z = get_rand_u32()
s.c = get_rand_u32() % 698769068 + 1 -- Should be less than 698769069
end,
},
}

8
polymer/eduke32/source/lunatic/test/test_geom.lua
View file

@ -67,7 +67,7 @@ local t4 = os.clock()
-- x86_64 (embedded): approx. 200 ms (vs. the 100 ms of direct
-- ffiC.rand_jkiss_dbl()):
-- x86: 170 ms
print(1000*(t2-t1))
print(1000*(t3-t2)) -- x86_64: 500 ms, x86: 700 ms
print(1000*(t4-t3)) -- x86_64, x86: about 35 ms <- thanks to allocation sinking (else, about 500 ms?)
print(v)
print("getdbl: ".. 1000*(t2-t1))
print("genpoints: ".. 1000*(t3-t2)) -- x86_64: 500 ms, x86: 700 ms
print("intersect: ".. 1000*(t4-t3)) -- x86_64, x86: about 35 ms <- thanks to allocation sinking (else, about 500 ms?)
print("result: ".. tostring(v))