RetroArch/libretro-test/libretro-test.c
2013-04-04 14:13:42 +02:00

334 lines
8.4 KiB
C

#include "../libretro.h"
#include <stdint.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>
#include <stdio.h>
static uint16_t *frame_buf;
void retro_init(void)
{
frame_buf = calloc(320 * 240, sizeof(uint16_t));
}
void retro_deinit(void)
{
free(frame_buf);
frame_buf = NULL;
}
unsigned retro_api_version(void)
{
return RETRO_API_VERSION;
}
void retro_set_controller_port_device(unsigned port, unsigned device)
{
(void)port;
(void)device;
}
void retro_get_system_info(struct retro_system_info *info)
{
memset(info, 0, sizeof(*info));
info->library_name = "TestCore";
info->library_version = "v1";
info->need_fullpath = false;
info->valid_extensions = NULL; // Anything is fine, we don't care.
}
void retro_get_system_av_info(struct retro_system_av_info *info)
{
info->timing = (struct retro_system_timing) {
.fps = 60.0,
.sample_rate = 30000.0,
};
info->geometry = (struct retro_game_geometry) {
.base_width = 320,
.base_height = 240,
.max_width = 320,
.max_height = 240,
.aspect_ratio = 4.0 / 3.0,
};
}
static retro_video_refresh_t video_cb;
static retro_audio_sample_t audio_cb;
static retro_audio_sample_batch_t audio_batch_cb;
static retro_environment_t environ_cb;
static retro_input_poll_t input_poll_cb;
static retro_input_state_t input_state_cb;
void retro_set_environment(retro_environment_t cb)
{
environ_cb = cb;
static const struct retro_variable vars[] = {
{ "test_opt0", "Test option #0; false|true" },
{ "test_opt1", "Test option #1; 0" },
{ "test_opt2", "Test option #2; 0|1|foo|3" },
{ NULL, NULL },
};
cb(RETRO_ENVIRONMENT_SET_VARIABLES, (void*)vars);
}
void retro_set_audio_sample(retro_audio_sample_t cb)
{
audio_cb = cb;
}
void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb)
{
audio_batch_cb = cb;
}
void retro_set_input_poll(retro_input_poll_t cb)
{
input_poll_cb = cb;
}
void retro_set_input_state(retro_input_state_t cb)
{
input_state_cb = cb;
}
void retro_set_video_refresh(retro_video_refresh_t cb)
{
video_cb = cb;
}
static unsigned x_coord;
static unsigned y_coord;
static unsigned phase;
static int mouse_rel_x;
static int mouse_rel_y;
void retro_reset(void)
{
x_coord = 0;
y_coord = 0;
}
static void update_input(void)
{
int dir_x = 0;
int dir_y = 0;
input_poll_cb();
if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP))
dir_y--;
if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN))
dir_y++;
if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT))
dir_x--;
if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT))
dir_x++;
if (input_state_cb(0, RETRO_DEVICE_KEYBOARD, 0, RETROK_RETURN))
fprintf(stderr, "Return key is pressed!\n");
if (input_state_cb(0, RETRO_DEVICE_KEYBOARD, 0, RETROK_x))
fprintf(stderr, "x key is pressed!\n");
int16_t mouse_x = input_state_cb(0, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_X);
int16_t mouse_y = input_state_cb(0, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_Y);
bool mouse_l = input_state_cb(0, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_LEFT);
bool mouse_r = input_state_cb(0, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_RIGHT);
if (mouse_x)
fprintf(stderr, "Mouse X: %d\n", mouse_x);
if (mouse_y)
fprintf(stderr, "Mouse Y: %d\n", mouse_y);
if (mouse_l)
fprintf(stderr, "Mouse L pressed.\n");
if (mouse_r)
fprintf(stderr, "Mouse R pressed.\n");
mouse_rel_x += mouse_x;
mouse_rel_y += mouse_y;
if (mouse_rel_x >= 310)
mouse_rel_x = 309;
else if (mouse_rel_x < 10)
mouse_rel_x = 10;
if (mouse_rel_y >= 230)
mouse_rel_y = 229;
else if (mouse_rel_y < 10)
mouse_rel_y = 10;
bool pointer_pressed = input_state_cb(0, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_PRESSED);
int16_t pointer_x = input_state_cb(0, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_X);
int16_t pointer_y = input_state_cb(0, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_Y);
if (pointer_pressed)
fprintf(stderr, "Pointer: (%6d, %6d).\n", pointer_x, pointer_y);
dir_x += input_state_cb(0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X) / 2000;
dir_y += input_state_cb(0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y) / 2000;
//dir_x += input_state_cb(0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X) / 2000;
//dir_y += input_state_cb(0, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y) / 2000;
x_coord = (x_coord + dir_x) & 31;
y_coord = (y_coord + dir_y) & 31;
}
static void render_checkered(void)
{
uint16_t color_r = 31 << 11;
uint16_t color_g = 63 << 5;
uint16_t *line = frame_buf;
for (unsigned y = 0; y < 240; y++, line += 320)
{
unsigned index_y = ((y - y_coord) >> 4) & 1;
for (unsigned x = 0; x < 320; x++)
{
unsigned index_x = ((x - x_coord) >> 4) & 1;
line[x] = (index_y ^ index_x) ? color_r : color_g;
}
}
for (unsigned y = mouse_rel_y - 5; y <= mouse_rel_y + 5; y++)
for (unsigned x = mouse_rel_x - 5; x <= mouse_rel_x + 5; x++)
frame_buf[y * 320 + x] = 0x1f;
video_cb(frame_buf, 320, 240, 320 << 1);
}
static void render_audio(void)
{
for (unsigned i = 0; i < 30000 / 60; i++, phase++)
{
int16_t val = 0x800 * sinf(2.0f * M_PI * phase * 300.0f / 30000.0f);
audio_cb(val, val);
}
phase %= 100;
}
static void check_variables(void)
{
struct retro_variable var = {0};
var.key = "test_opt0";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
fprintf(stderr, "Key -> Val: %s -> %s.\n", var.key, var.value);
var.key = "test_opt1";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
fprintf(stderr, "Key -> Val: %s -> %s.\n", var.key, var.value);
var.key = "test_opt2";
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
fprintf(stderr, "Key -> Val: %s -> %s.\n", var.key, var.value);
}
void retro_run(void)
{
update_input();
render_checkered();
render_audio();
bool updated = false;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
check_variables();
}
static void keyboard_cb(bool down, unsigned keycode,
uint32_t character, uint16_t mod)
{
fprintf(stderr, "Down: %s, Code: %d, Char: %u, Mod: %u.\n",
down ? "yes" : "no", keycode, character, mod);
}
bool retro_load_game(const struct retro_game_info *info)
{
struct retro_input_descriptor desc[] = {
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT, "Left" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP, "Up" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN, "Down" },
{ 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "Right" },
{ 0 },
};
environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, desc);
enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565;
if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt))
{
fprintf(stderr, "RGB565 is not supported.\n");
return false;
}
struct retro_keyboard_callback cb = { keyboard_cb };
environ_cb(RETRO_ENVIRONMENT_SET_KEYBOARD_CALLBACK, &cb);
check_variables();
(void)info;
return true;
}
void retro_unload_game(void)
{}
unsigned retro_get_region(void)
{
return RETRO_REGION_NTSC;
}
bool retro_load_game_special(unsigned type, const struct retro_game_info *info, size_t num)
{
(void)type;
(void)info;
(void)num;
return false;
}
size_t retro_serialize_size(void)
{
return 2;
}
bool retro_serialize(void *data_, size_t size)
{
if (size < 2)
return false;
uint8_t *data = data_;
data[0] = x_coord;
data[1] = y_coord;
return true;
}
bool retro_unserialize(const void *data_, size_t size)
{
if (size < 2)
return false;
const uint8_t *data = data_;
x_coord = data[0] & 31;
y_coord = data[1] & 31;
return true;
}
void *retro_get_memory_data(unsigned id)
{
(void)id;
return NULL;
}
size_t retro_get_memory_size(unsigned id)
{
(void)id;
return 0;
}
void retro_cheat_reset(void)
{}
void retro_cheat_set(unsigned index, bool enabled, const char *code)
{
(void)index;
(void)enabled;
(void)code;
}