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#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
#include "matrix/matrix.h"
#include "common.h"
#include "luaT/luaT.h"
#include <stdio.h>
const char *nerv_matrix_host_float_tname = "nerv.MMatrixFloat";
const char *input_name = "_nerv_embed_input";
const char *output_name = "_nerv_embed_output";
extern Matrix *nerv_matrix_host_float_create(long nrow, long ncol, Status *status);
extern void nerv_matrix_host_float_data_retain(Matrix *self);
extern void nerv_matrix_host_float_data_free(Matrix *self, Status *status);
lua_State *L;
Matrix *input, *output;
Status status;
void setup_nerv() {
L = lua_open();
luaL_openlibs(L);
luaL_loadfile(L, "setup_nerv.lua");
/* network configuration */
lua_pushstring(L, "swb_baseline_decode.lua");
if (lua_pcall(L, 1, LUA_MULTRET, 0))
{
printf("%s\n", luaL_checkstring(L, 1));
exit(1);
}
/* lua stack now: input width, output width, propagator */
input = nerv_matrix_host_float_create(1, luaL_checkinteger(L, 1), &status);
NERV_LUA_CHECK_STATUS(L, status);
output = nerv_matrix_host_float_create(1, luaL_checkinteger(L, 2), &status);
NERV_LUA_CHECK_STATUS(L, status);
/* add reference to avoid gc */
luaT_pushudata(L, output, nerv_matrix_host_float_tname);
luaT_pushudata(L, input, nerv_matrix_host_float_tname);
lua_setfield(L, LUA_GLOBALSINDEX, input_name);
lua_setfield(L, LUA_GLOBALSINDEX, output_name);
}
void propagate(float for_fun) {
int i, j;
printf("ok: %d\n", lua_gettop(L));
lua_pushvalue(L, 3);
/* lua stack now: input width, output width, propagator, propagator */
for (i = 0; i < input->nrow; i++) /* nrow is actually 1 */
{
float *nerv_row = (float *)((char *)input->data.f + i * input->stride);
for (j = 0; j < input->ncol; j++)
{
nerv_row[j] = j * for_fun;
}
}
lua_getfield(L, LUA_GLOBALSINDEX, input_name);
lua_getfield(L, LUA_GLOBALSINDEX, output_name);
/* lua stack now: input width, output width, propagator, propagator, input, output */
if (lua_pcall(L, 2, 0, 0)) /* call propagator with two parameters */
{
printf("%s\n", luaL_checkstring(L, -1));
exit(-1);
}
/* lua stack now: input width, output width, propagator */
printf("## output: %ld %ld ##\n", output->nrow, output->ncol);
for (i = 0; i < output->nrow; i++) /* nrow is actually 1 */
{
float *nerv_row = (float *)((char *)output->data.f + i * output->stride);
for (j = 0; j < output->ncol; j++)
{
printf("%.8f ", nerv_row[j]);
}
}
}
void teardown_nerv() {
lua_pushnil(L);
lua_pushnil(L);
lua_setfield(L, LUA_GLOBALSINDEX, input_name);
lua_setfield(L, LUA_GLOBALSINDEX, output_name);
lua_gc(L, LUA_GCCOLLECT, 0);
}
int main() {
setup_nerv();
propagate(1.0);
propagate(2.0);
propagate(2.0);
propagate(3.0);
teardown_nerv();
return 0;
}
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