mirror of
https://github.com/libretro/RetroArch.git
synced 2024-12-14 20:59:06 +00:00
373 lines
9.1 KiB
C
373 lines
9.1 KiB
C
/* RetroArch - A frontend for libretro.
|
|
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
|
|
*
|
|
* RetroArch is free software: you can redistribute it and/or modify it under the terms
|
|
* of the GNU General Public License as published by the Free Software Found-
|
|
* ation, either version 3 of the License, or (at your option) any later version.
|
|
*
|
|
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
|
|
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
* PURPOSE. See the GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with RetroArch.
|
|
* If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <Python.h>
|
|
#include "../../boolean.h"
|
|
#include <stdlib.h>
|
|
#include <ctype.h>
|
|
#include <string.h>
|
|
|
|
#include "../../dynamic.h"
|
|
#include "../../libretro.h"
|
|
#include "py_state.h"
|
|
#include "../../general.h"
|
|
#include "../../compat/strl.h"
|
|
#include "../../compat/posix_string.h"
|
|
#include "../../input/input_common.h"
|
|
#include "../../file.h"
|
|
|
|
static PyObject* py_read_wram(PyObject *self, PyObject *args)
|
|
{
|
|
(void)self;
|
|
const uint8_t *data = (const uint8_t*)pretro_get_memory_data(RETRO_MEMORY_SYSTEM_RAM);
|
|
if (!data)
|
|
{
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
|
|
size_t max = pretro_get_memory_size(RETRO_MEMORY_SYSTEM_RAM);
|
|
unsigned addr;
|
|
|
|
if (!PyArg_ParseTuple(args, "I", &addr))
|
|
return NULL;
|
|
|
|
if (addr >= max)
|
|
{
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
|
|
return PyLong_FromLong(data[addr]);
|
|
}
|
|
|
|
static PyObject* py_read_vram(PyObject *self, PyObject *args)
|
|
{
|
|
(void)self;
|
|
const uint8_t *data = (const uint8_t*)pretro_get_memory_data(RETRO_MEMORY_VIDEO_RAM);
|
|
if (!data)
|
|
{
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
|
|
size_t max = pretro_get_memory_size(RETRO_MEMORY_VIDEO_RAM);
|
|
unsigned addr;
|
|
|
|
if (!PyArg_ParseTuple(args, "I", &addr))
|
|
return NULL;
|
|
|
|
if (addr >= max)
|
|
{
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
|
|
return PyLong_FromLong(data[addr]);
|
|
}
|
|
|
|
static const struct retro_keybind *py_binds[MAX_PLAYERS] = {
|
|
g_settings.input.binds[0],
|
|
g_settings.input.binds[1],
|
|
g_settings.input.binds[2],
|
|
g_settings.input.binds[3],
|
|
g_settings.input.binds[4],
|
|
g_settings.input.binds[5],
|
|
g_settings.input.binds[6],
|
|
g_settings.input.binds[7],
|
|
};
|
|
|
|
static PyObject *py_read_input(PyObject *self, PyObject *args)
|
|
{
|
|
(void)self;
|
|
if (!driver.input_data)
|
|
return PyBool_FromLong(0);
|
|
|
|
unsigned player;
|
|
unsigned key;
|
|
if (!PyArg_ParseTuple(args, "II", &player, &key))
|
|
return NULL;
|
|
|
|
if (player > MAX_PLAYERS || player < 1 || key >= RARCH_FIRST_META_KEY)
|
|
return NULL;
|
|
|
|
int16_t res = driver.block_libretro_input ? 0 : driver.input->input_state(driver.input_data, py_binds, player - 1, RETRO_DEVICE_JOYPAD, 0, key);
|
|
return PyBool_FromLong(res);
|
|
}
|
|
|
|
static PyObject *py_read_analog(PyObject *self, PyObject *args)
|
|
{
|
|
(void)self;
|
|
if (!driver.input_data)
|
|
return PyBool_FromLong(0);
|
|
|
|
unsigned player;
|
|
unsigned index;
|
|
unsigned id;
|
|
if (!PyArg_ParseTuple(args, "III", &player, &index, &id))
|
|
return NULL;
|
|
|
|
if (player > MAX_PLAYERS || player < 1 || index > 1 || id > 1)
|
|
return NULL;
|
|
|
|
int16_t res = driver.input->input_state(driver.input_data, py_binds, player - 1, RETRO_DEVICE_ANALOG, index, id);
|
|
return PyFloat_FromDouble((double)res / 0x7fff);
|
|
}
|
|
|
|
static PyMethodDef RarchMethods[] = {
|
|
{ "read_wram", py_read_wram, METH_VARARGS, "Read WRAM from system." },
|
|
{ "read_vram", py_read_vram, METH_VARARGS, "Read VRAM from system." },
|
|
{ "input", py_read_input, METH_VARARGS, "Read input state from system." },
|
|
{ "input_analog", py_read_analog, METH_VARARGS, "Read analog input state from system." },
|
|
{ NULL, NULL, 0, NULL }
|
|
};
|
|
|
|
#define DECL_ATTR_RETRO(attr) PyObject_SetAttrString(mod, #attr, PyLong_FromLong(RETRO_DEVICE_ID_JOYPAD_##attr))
|
|
static void py_set_attrs(PyObject *mod)
|
|
{
|
|
DECL_ATTR_RETRO(B);
|
|
DECL_ATTR_RETRO(Y);
|
|
DECL_ATTR_RETRO(SELECT);
|
|
DECL_ATTR_RETRO(START);
|
|
DECL_ATTR_RETRO(UP);
|
|
DECL_ATTR_RETRO(DOWN);
|
|
DECL_ATTR_RETRO(LEFT);
|
|
DECL_ATTR_RETRO(RIGHT);
|
|
DECL_ATTR_RETRO(A);
|
|
DECL_ATTR_RETRO(X);
|
|
DECL_ATTR_RETRO(L);
|
|
DECL_ATTR_RETRO(R);
|
|
DECL_ATTR_RETRO(L2);
|
|
DECL_ATTR_RETRO(R2);
|
|
DECL_ATTR_RETRO(L3);
|
|
DECL_ATTR_RETRO(R3);
|
|
|
|
PyObject_SetAttrString(mod, "ANALOG_LEFT", PyLong_FromLong(RETRO_DEVICE_INDEX_ANALOG_LEFT));
|
|
PyObject_SetAttrString(mod, "ANALOG_RIGHT", PyLong_FromLong(RETRO_DEVICE_INDEX_ANALOG_RIGHT));
|
|
PyObject_SetAttrString(mod, "ANALOG_X", PyLong_FromLong(RETRO_DEVICE_ID_ANALOG_X));
|
|
PyObject_SetAttrString(mod, "ANALOG_Y", PyLong_FromLong(RETRO_DEVICE_ID_ANALOG_Y));
|
|
}
|
|
|
|
static PyModuleDef RarchModule = {
|
|
PyModuleDef_HEAD_INIT, "rarch", NULL, -1, RarchMethods,
|
|
NULL, NULL, NULL, NULL
|
|
};
|
|
|
|
static PyObject* PyInit_Retro(void)
|
|
{
|
|
PyObject *mod = PyModule_Create(&RarchModule);
|
|
if (!mod)
|
|
return NULL;
|
|
|
|
py_set_attrs(mod);
|
|
return mod;
|
|
}
|
|
|
|
struct py_state
|
|
{
|
|
PyObject *main;
|
|
PyObject *dict;
|
|
PyObject *inst;
|
|
|
|
bool warned_ret;
|
|
bool warned_type;
|
|
};
|
|
|
|
static char *dupe_newline(const char *str)
|
|
{
|
|
if (!str)
|
|
return NULL;
|
|
|
|
unsigned size = strlen(str) + 2;
|
|
char *ret = (char*)malloc(size);
|
|
if (!ret)
|
|
return NULL;
|
|
|
|
strlcpy(ret, str, size);
|
|
ret[size - 2] = '\n';
|
|
ret[size - 1] = '\0';
|
|
return ret;
|
|
}
|
|
|
|
// Need to make sure that first-line indentation is 0. :(
|
|
static char *align_program(const char *program)
|
|
{
|
|
char *prog = strdup(program);
|
|
if (!prog)
|
|
return NULL;
|
|
|
|
size_t prog_size = strlen(program) + 1;
|
|
char *new_prog = (char*)calloc(1, prog_size);
|
|
if (!new_prog)
|
|
{
|
|
free(prog);
|
|
return NULL;
|
|
}
|
|
|
|
char *save;
|
|
char *line = dupe_newline(strtok_r(prog, "\n", &save));
|
|
if (!line)
|
|
{
|
|
free(prog);
|
|
free(new_prog);
|
|
return NULL;
|
|
}
|
|
|
|
unsigned skip_chars = 0;
|
|
while (isblank(line[skip_chars]) && line[skip_chars])
|
|
skip_chars++;
|
|
|
|
while (line)
|
|
{
|
|
unsigned length = strlen(line);
|
|
unsigned skip_len = skip_chars > length ? length : skip_chars;
|
|
|
|
strlcat(new_prog, line + skip_len, prog_size);
|
|
|
|
free(line);
|
|
line = dupe_newline(strtok_r(NULL, "\n", &save));
|
|
}
|
|
|
|
free(prog);
|
|
return new_prog;
|
|
}
|
|
|
|
py_state_t *py_state_new(const char *script, unsigned is_file, const char *pyclass)
|
|
{
|
|
RARCH_LOG("Initializing Python runtime ...\n");
|
|
PyImport_AppendInittab("rarch", &PyInit_Retro);
|
|
Py_Initialize();
|
|
RARCH_LOG("Initialized Python runtime.\n");
|
|
|
|
py_state_t *handle = (py_state_t*)calloc(1, sizeof(*handle));
|
|
PyObject *hook = NULL;
|
|
|
|
handle->main = PyImport_AddModule("__main__");
|
|
if (!handle->main)
|
|
goto error;
|
|
Py_INCREF(handle->main);
|
|
|
|
if (is_file)
|
|
{
|
|
// Have to hack around the fact that the
|
|
// FILE struct isn't standardized across environments.
|
|
// PyRun_SimpleFile() breaks on Windows because it's compiled with MSVC.
|
|
|
|
char *script_ = NULL;
|
|
if (read_file(script, (void**)&script_) < 0)
|
|
{
|
|
RARCH_ERR("Python: Failed to read script\n");
|
|
goto error;
|
|
}
|
|
|
|
PyRun_SimpleString(script_);
|
|
free(script_);
|
|
}
|
|
else
|
|
{
|
|
char *script_ = align_program(script);
|
|
if (script_)
|
|
{
|
|
PyRun_SimpleString(script_);
|
|
free(script_);
|
|
}
|
|
}
|
|
|
|
RARCH_LOG("Python: Script loaded.\n");
|
|
handle->dict = PyModule_GetDict(handle->main);
|
|
if (!handle->dict)
|
|
{
|
|
RARCH_ERR("Python: PyModule_GetDict() failed.\n");
|
|
goto error;
|
|
}
|
|
Py_INCREF(handle->dict);
|
|
|
|
hook = PyDict_GetItemString(handle->dict, pyclass);
|
|
if (!hook)
|
|
{
|
|
RARCH_ERR("Python: PyDict_GetItemString() failed.\n");
|
|
goto error;
|
|
}
|
|
|
|
handle->inst = PyObject_CallFunction(hook, NULL);
|
|
if (!handle->inst)
|
|
{
|
|
RARCH_ERR("Python: PyObject_CallFunction() failed.\n");
|
|
goto error;
|
|
}
|
|
Py_INCREF(handle->inst);
|
|
|
|
return handle;
|
|
|
|
error:
|
|
PyErr_Print();
|
|
PyErr_Clear();
|
|
py_state_free(handle);
|
|
return NULL;
|
|
}
|
|
|
|
void py_state_free(py_state_t *handle)
|
|
{
|
|
if (!handle)
|
|
return;
|
|
|
|
PyErr_Print();
|
|
PyErr_Clear();
|
|
|
|
Py_CLEAR(handle->inst);
|
|
Py_CLEAR(handle->dict);
|
|
Py_CLEAR(handle->main);
|
|
|
|
free(handle);
|
|
Py_Finalize();
|
|
}
|
|
|
|
float py_state_get(py_state_t *handle, const char *id,
|
|
unsigned frame_count)
|
|
{
|
|
unsigned i;
|
|
for (i = 0; i < MAX_PLAYERS; i++)
|
|
{
|
|
input_push_analog_dpad(g_settings.input.binds[i], g_settings.input.analog_dpad_mode[i]);
|
|
input_push_analog_dpad(g_settings.input.autoconf_binds[i], g_settings.input.analog_dpad_mode[i]);
|
|
}
|
|
|
|
PyObject *ret = PyObject_CallMethod(handle->inst, (char*)id, (char*)"I", frame_count);
|
|
|
|
for (i = 0; i < MAX_PLAYERS; i++)
|
|
{
|
|
input_pop_analog_dpad(g_settings.input.binds[i]);
|
|
input_pop_analog_dpad(g_settings.input.autoconf_binds[i]);
|
|
}
|
|
|
|
if (!ret)
|
|
{
|
|
if (!handle->warned_ret)
|
|
{
|
|
RARCH_WARN("Didn't get return value from script. Bug?\n");
|
|
PyErr_Print();
|
|
PyErr_Clear();
|
|
}
|
|
|
|
handle->warned_ret = true;
|
|
return 0.0f;
|
|
}
|
|
|
|
float retval = (float)PyFloat_AsDouble(ret);
|
|
Py_DECREF(ret);
|
|
return retval;
|
|
}
|
|
|