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fceux
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add ppu lua library 

only has readbyte and readbyterange so far
This commit is contained in:
feos-tas 2016-12-22 15:15:38 +00:00
parent 79c27047e4
commit 2c80da6cc7
1 changed files with 31 additions and 0 deletions
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31
trunk/src/lua-engine.cpp
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@ -21,6 +21,7 @@
#include "driver.h"
#include "cheat.h"
#include "x6502.h"
#include "ppu.h"
#include "utils/xstring.h"
#include "utils/memory.h"
#include "utils/crc32.h"
@ -1373,6 +1374,27 @@ static int memory_readbyterange(lua_State *L) {
return 1;
}
static int ppu_readbyte(lua_State *L) {
lua_pushinteger(L, FFCEUX_PPURead(luaL_checkinteger(L, 1)));
return 1;
}
static int ppu_readbyterange(lua_State *L) {
int range_start = luaL_checkinteger(L, 1);
int range_size = luaL_checkinteger(L, 2);
if (range_size < 0)
return 0;
char* buf = (char*)alloca(range_size);
for (int i = 0;i<range_size;i++) {
buf[i] = FFCEUX_PPURead(range_start + i);
}
lua_pushlstring(L, buf, range_size);
return 1;
}
static inline bool isalphaorunderscore(char c)
{
return isalpha(c) || c == '_';
@ -5477,6 +5499,14 @@ static const struct luaL_reg memorylib [] = {
{NULL,NULL}
};
static const struct luaL_reg ppulib [] = {
{"readbyte", ppu_readbyte},
{"readbyterange", ppu_readbyterange},
{NULL,NULL}
};
static const struct luaL_reg joypadlib[] = {
{"get", joypad_get},
{"getdown", joypad_getdown},
@ -5759,6 +5789,7 @@ int FCEU_LoadLuaCode(const char *filename, const char *arg) {
luaL_register(L, "emu", emulib); // added for better cross-emulator compatibility
luaL_register(L, "FCEU", emulib); // kept for backward compatibility
luaL_register(L, "memory", memorylib);
luaL_register(L, "ppu", ppulib);
luaL_register(L, "rom", romlib);
luaL_register(L, "joypad", joypadlib);
luaL_register(L, "zapper", zapperlib);