forked from ekeeke/Genesis-Plus-GX
/
libretro.c
3881 lines (3409 loc) · 123 KB
/
libretro.c
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/****************************************************************************
* libretro.c
*
* Genesis Plus GX libretro port
*
* Copyright Eke-Eke (2007-2022)
*
* Copyright Daniel De Matteis (2012-2016)
*
* Redistribution and use of this code or any derivative works are permitted
* provided that the following conditions are met:
*
* - Redistributions may not be sold, nor may they be used in a commercial
* product or activity.
*
* - Redistributions that are modified from the original source must include the
* complete source code, including the source code for all components used by a
* binary built from the modified sources. However, as a special exception, the
* source code distributed need not include anything that is normally distributed
* (in either source or binary form) with the major components (compiler, kernel,
* and so on) of the operating system on which the executable runs, unless that
* component itself accompanies the executable.
*
* - Redistributions must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************************/
#ifndef _MSC_VER
#include <stdbool.h>
#endif
#include <stddef.h>
#include <stdarg.h>
#include <stdio.h>
#ifdef _MSC_VER
#define snprintf _snprintf
#endif
#ifdef _XBOX1
#include <xtl.h>
#endif
#define RETRO_DEVICE_MDPAD_3B RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_JOYPAD, 0)
#define RETRO_DEVICE_MDPAD_6B RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_JOYPAD, 1)
#define RETRO_DEVICE_MSPAD_2B RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_JOYPAD, 2)
#define RETRO_DEVICE_MDPAD_3B_WAYPLAY RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_JOYPAD, 3)
#define RETRO_DEVICE_MDPAD_6B_WAYPLAY RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_JOYPAD, 4)
#define RETRO_DEVICE_MDPAD_3B_TEAMPLAYER RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_JOYPAD, 5)
#define RETRO_DEVICE_MDPAD_6B_TEAMPLAYER RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_JOYPAD, 6)
#define RETRO_DEVICE_MSPAD_2B_MASTERTAP RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_JOYPAD, 7)
#define RETRO_DEVICE_PADDLE RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_ANALOG, 0)
#define RETRO_DEVICE_SPORTSPAD RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_ANALOG, 1)
#define RETRO_DEVICE_XE_1AP RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_ANALOG, 2)
#define RETRO_DEVICE_PHASER RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_LIGHTGUN, 0)
#define RETRO_DEVICE_MENACER RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_LIGHTGUN, 1)
#define RETRO_DEVICE_JUSTIFIERS RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_LIGHTGUN, 2)
#define RETRO_DEVICE_GRAPHIC_BOARD RETRO_DEVICE_SUBCLASS(RETRO_DEVICE_POINTER, 0)
#include <libretro.h>
#include <streams/file_stream.h>
#include <file/file_path.h>
#include <compat/strl.h>
#include "libretro_core_options.h"
#include "shared.h"
#include "md_ntsc.h"
#include "sms_ntsc.h"
#include "osd.h"
#define STATIC_ASSERT(name, test) typedef struct { int assert_[(test)?1:-1]; } assert_ ## name ## _
#define M68K_MAX_CYCLES 1107
#define Z80_MAX_CYCLES 345
#define OVERCLOCK_FRAME_DELAY 100
#ifdef M68K_OVERCLOCK_SHIFT
#ifndef HAVE_OVERCLOCK
#define HAVE_OVERCLOCK
#endif
STATIC_ASSERT(m68k_overflow,
M68K_MAX_CYCLES <= UINT_MAX >> (M68K_OVERCLOCK_SHIFT + 1));
#endif
#ifdef Z80_OVERCLOCK_SHIFT
#ifndef HAVE_OVERCLOCK
#define HAVE_OVERCLOCK
#endif
STATIC_ASSERT(z80_overflow,
Z80_MAX_CYCLES <= UINT_MAX >> (Z80_OVERCLOCK_SHIFT + 1));
#endif
t_config config;
sms_ntsc_t *sms_ntsc = NULL;
md_ntsc_t *md_ntsc = NULL;
char GG_ROM[256];
char AR_ROM[256];
char SK_ROM[256];
char SK_UPMEM[256];
char MD_BIOS[256];
char GG_BIOS[256];
char MS_BIOS_EU[256];
char MS_BIOS_JP[256];
char MS_BIOS_US[256];
char CD_BIOS_EU[256];
char CD_BIOS_US[256];
char CD_BIOS_JP[256];
char CD_BRAM_JP[256];
char CD_BRAM_US[256];
char CD_BRAM_EU[256];
char CART_BRAM[256];
static int vwidth;
static int vheight;
static double vaspect_ratio;
static uint32_t brm_crc[2];
static uint8_t brm_format[0x40] =
{
0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x5f,0x00,0x00,0x00,0x00,0x40,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x53,0x45,0x47,0x41,0x5f,0x43,0x44,0x5f,0x52,0x4f,0x4d,0x00,0x01,0x00,0x00,0x00,
0x52,0x41,0x4d,0x5f,0x43,0x41,0x52,0x54,0x52,0x49,0x44,0x47,0x45,0x5f,0x5f,0x5f
};
uint8_t cart_size;
static bool is_running = 0;
static uint8_t temp[0x10000];
static int16 soundbuffer[3068];
static uint16_t bitmap_data_[720 * 576];
static bool restart_eq = false;
static char g_rom_dir[256];
static char g_rom_name[256];
static const void *g_rom_data = NULL;
static size_t g_rom_size = 0;
static char *save_dir = NULL;
static retro_log_printf_t log_cb;
static retro_video_refresh_t video_cb;
static retro_input_poll_t input_poll_cb;
static retro_input_state_t input_state_cb;
static retro_environment_t environ_cb;
static retro_audio_sample_batch_t audio_cb;
enum RetroLightgunInputModes{RetroLightgun, RetroPointer};
static enum RetroLightgunInputModes retro_gun_mode = RetroLightgun;
/* Cheat Support */
#define MAX_CHEATS (150)
typedef struct
{
bool enable;
uint16_t data;
uint16_t old;
uint32_t address;
uint8_t *prev;
} CHEATENTRY;
static int maxcheats = 0;
static int maxROMcheats = 0;
static int maxRAMcheats = 0;
static CHEATENTRY cheatlist[MAX_CHEATS];
static uint8_t cheatIndexes[MAX_CHEATS];
static char ggvalidchars[] = "ABCDEFGHJKLMNPRSTVWXYZ0123456789";
static char arvalidchars[] = "0123456789ABCDEF";
/* Some games appear to calibrate music playback speed for PAL/NTSC by
actually counting CPU cycles per frame during startup, resulting in
hilariously fast music. Delay overclocking for a while as a
workaround */
#ifdef HAVE_OVERCLOCK
static uint32_t overclock_delay;
#endif
static bool libretro_supports_option_categories = false;
static bool libretro_supports_bitmasks = false;
#define SOUND_FREQUENCY 44100
/* Hide the EQ settings for now */
/*#define HAVE_EQ*/
/* Frameskipping Support */
static unsigned frameskip_type = 0;
static unsigned frameskip_threshold = 0;
static uint16_t frameskip_counter = 0;
static bool retro_audio_buff_active = false;
static unsigned retro_audio_buff_occupancy = 0;
static bool retro_audio_buff_underrun = false;
/* Maximum number of consecutive frames that
* can be skipped */
#define FRAMESKIP_MAX 60
static unsigned audio_latency = 0;
static bool update_audio_latency = false;
#ifdef USE_PER_SOUND_CHANNELS_CONFIG
static bool show_advanced_av_settings = true;
#endif
static void retro_audio_buff_status_cb(
bool active, unsigned occupancy, bool underrun_likely)
{
retro_audio_buff_active = active;
retro_audio_buff_occupancy = occupancy;
retro_audio_buff_underrun = underrun_likely;
}
/* LED interface */
static retro_set_led_state_t led_state_cb = NULL;
static unsigned int retro_led_state[2] = {0};
static void retro_led_interface(void)
{
/* 0: Power
* 1: CD */
unsigned int led_state[2] = {0};
unsigned int l = 0;
led_state[0] = (zstate) ? 1 : 0;
led_state[1] = (scd.regs[0x06 >> 1].byte.h & 1) ? 1 : 0;
for (l = 0; l < sizeof(led_state)/sizeof(led_state[0]); l++)
{
if (retro_led_state[l] != led_state[l])
{
retro_led_state[l] = led_state[l];
led_state_cb(l, led_state[l]);
}
}
}
static void init_frameskip(void)
{
if (frameskip_type > 0)
{
struct retro_audio_buffer_status_callback buf_status_cb;
buf_status_cb.callback = retro_audio_buff_status_cb;
if (!environ_cb(RETRO_ENVIRONMENT_SET_AUDIO_BUFFER_STATUS_CALLBACK,
&buf_status_cb))
{
if (log_cb)
log_cb(RETRO_LOG_WARN, "Frameskip disabled - frontend does not support audio buffer status monitoring.\n");
retro_audio_buff_active = false;
retro_audio_buff_occupancy = 0;
retro_audio_buff_underrun = false;
audio_latency = 0;
}
else
{
/* Frameskip is enabled - increase frontend
* audio latency to minimise potential
* buffer underruns */
float frames_per_sec;
float frame_time_msec;
/* While system_clock and lines_per_frame will
* always be valid when this function is called,
* it is not guaranteed. Just add a fallback to
* prevent any possible divide-by-zero errors */
if ((system_clock <= 0) || (lines_per_frame <= 0))
frames_per_sec = 60.0f;
else
frames_per_sec = (float)system_clock / (float)lines_per_frame / (float)MCYCLES_PER_LINE;
frame_time_msec = 1000.0f / frames_per_sec;
/* Set latency to 6x current frame time... */
audio_latency = (unsigned)((6.0f * frame_time_msec) + 0.5f);
/* ...then round up to nearest multiple of 32 */
audio_latency = (audio_latency + 0x1F) & ~0x1F;
}
}
else
{
environ_cb(RETRO_ENVIRONMENT_SET_AUDIO_BUFFER_STATUS_CALLBACK, NULL);
audio_latency = 0;
}
update_audio_latency = true;
}
/************************************
* Genesis Plus GX implementation
************************************/
#undef CHUNKSIZE
#define CHUNKSIZE (0x10000)
void error(char * fmt, ...)
{
char buffer[256];
va_list ap;
va_start(ap, fmt);
vsprintf(buffer, fmt, ap);
if (log_cb)
log_cb(RETRO_LOG_ERROR, "%s\n", buffer);
va_end(ap);
}
static void show_rom_size_error_msg(void)
{
unsigned msg_interface_version = 0;
environ_cb(RETRO_ENVIRONMENT_GET_MESSAGE_INTERFACE_VERSION,
&msg_interface_version);
if (msg_interface_version >= 1)
{
struct retro_message_ext msg = {
"ROM size exceeds maximum permitted value",
3000,
3,
RETRO_LOG_ERROR,
RETRO_MESSAGE_TARGET_ALL,
RETRO_MESSAGE_TYPE_NOTIFICATION,
-1
};
environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE_EXT, &msg);
}
else
{
struct retro_message msg = {
"ROM size exceeds maximum permitted value",
180
};
environ_cb(RETRO_ENVIRONMENT_SET_MESSAGE, &msg);
}
}
int load_archive(char *filename, unsigned char *buffer, int maxsize, char *extension)
{
int64_t left = 0;
int64_t size = 0;
RFILE *fd;
/* Get filename extension */
if (extension)
{
memcpy(extension, &filename[strlen(filename) - 3], 3);
extension[3] = 0;
}
/* Check if this was called to load ROM file from the frontend (not BOOT ROM or Lock-On ROM files from the core) */
if (maxsize >= 0x800000)
{
/* Check if loaded game is already in memory */
if ((g_rom_data != NULL) && (g_rom_size > 0))
{
size = g_rom_size;
if (size > maxsize)
{
/* ROM exceeds maximum allowed size
* - Notify user and return an error */
show_rom_size_error_msg();
return 0;
}
memcpy(buffer, g_rom_data, size);
return size;
}
}
/* Open file */
fd = filestream_open(filename, RETRO_VFS_FILE_ACCESS_READ, RETRO_VFS_FILE_ACCESS_HINT_NONE);
if (!fd)
{
/* Master System & Game Gear BIOS are optional files */
if (!strcmp(filename,MS_BIOS_US) || !strcmp(filename,MS_BIOS_EU) || !strcmp(filename,MS_BIOS_JP) || !strcmp(filename,GG_BIOS))
{
return 0;
}
/* Mega CD BIOS are required files */
if (!strcmp(filename,CD_BIOS_US) || !strcmp(filename,CD_BIOS_EU) || !strcmp(filename,CD_BIOS_JP))
{
if (log_cb)
log_cb(RETRO_LOG_ERROR, "Unable to open CD BIOS: %s.\n", filename);
return 0;
}
if (log_cb)
log_cb(RETRO_LOG_ERROR, "Unable to open file.\n");
return 0;
}
/* Get file size */
filestream_seek(fd, 0, SEEK_END);
size = filestream_tell(fd);
/* size limit */
if (size > MAXROMSIZE)
{
/* ROM exceeds maximum allowed size
* - Notify user and return an error */
filestream_close(fd);
show_rom_size_error_msg();
return 0;
}
else if (size > maxsize)
size = maxsize;
if (log_cb)
log_cb(RETRO_LOG_INFO, "INFORMATION - Loading %d bytes ...\n", size);
/* Read into buffer */
left = size;
filestream_seek(fd, 0, SEEK_SET);
while (left > CHUNKSIZE)
{
filestream_read(fd, buffer, CHUNKSIZE);
buffer += CHUNKSIZE;
left -= CHUNKSIZE;
}
/* Read remaining bytes */
filestream_read(fd, buffer, left);
/* Close file */
filestream_close(fd);
/* Return loaded ROM size */
return size;
}
static void RAMCheatUpdate(void);
static void osd_input_update_internal_bitmasks(void)
{
int i, player = 0;
unsigned int temp;
int16_t ret = input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
for (i = 0; i < MAX_INPUTS; i++)
{
temp = 0;
switch (input.dev[i])
{
case DEVICE_PAD6B:
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_L))
temp |= INPUT_X;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_X))
temp |= INPUT_Y;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_R))
temp |= INPUT_Z;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_SELECT))
temp |= INPUT_MODE;
case DEVICE_PAD3B:
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_Y))
temp |= INPUT_A;
case DEVICE_PAD2B:
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_B))
temp |= INPUT_B;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_A))
temp |= INPUT_C;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_START))
temp |= INPUT_START;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_UP))
temp |= INPUT_UP;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_DOWN))
temp |= INPUT_DOWN;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_LEFT))
temp |= INPUT_LEFT;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_RIGHT))
temp |= INPUT_RIGHT;
player++;
ret = input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
break;
case DEVICE_MOUSE:
input.analog[i][0] = input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_X);
if (config.invert_mouse)
input.analog[i][1] = input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_Y);
else
input.analog[i][1] = -input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_Y);
if (input.analog[i][0] < -255)
input.analog[i][0] = -255;
else if (input.analog[i][0] > 255)
input.analog[i][0] = 255;
if (input.analog[i][1] < -255)
input.analog[i][1] = -255;
else if (input.analog[i][1] > 255)
input.analog[i][1] = 255;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_LEFT))
temp |= INPUT_MOUSE_LEFT;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_RIGHT))
temp |= INPUT_MOUSE_RIGHT;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_WHEELDOWN))
temp |= INPUT_MOUSE_CENTER;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_MIDDLE))
temp |= INPUT_START;
player++;
ret = input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
break;
case DEVICE_LIGHTGUN:
if ( retro_gun_mode == RetroPointer )
{
int touch_count;
input.analog[i][0] = ((input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_X) + 0x7fff) * bitmap.viewport.w) / 0xfffe;
input.analog[i][1] = ((input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_Y) + 0x7fff) * bitmap.viewport.h) / 0xfffe;
if (input_state_cb(player, RETRO_DEVICE_POINTER, 0,
RETRO_DEVICE_ID_POINTER_PRESSED))
temp |= INPUT_A;
touch_count = input_state_cb(player,
RETRO_DEVICE_POINTER, 0,
RETRO_DEVICE_ID_POINTER_COUNT);
if (touch_count == 2)
temp |= INPUT_B;
else if (touch_count == 3)
temp |= INPUT_START;
else if (touch_count == 4)
temp |= INPUT_C;
}
else
{
/* RetroLightgun is default */
if ( input_state_cb(player, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_IS_OFFSCREEN) )
{
input.analog[i][0] = -1000;
input.analog[i][1] = -1000;
}
else
{
input.analog[i][0] = ((input_state_cb(player, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_SCREEN_X) + 0x7fff) * bitmap.viewport.w) / 0xfffe;
input.analog[i][1] = ((input_state_cb(player, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_SCREEN_Y) + 0x7fff) * bitmap.viewport.h) / 0xfffe;
}
if (input_state_cb(player, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_TRIGGER))
temp |= INPUT_A;
if (input_state_cb(player, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_AUX_A))
temp |= INPUT_B;
if (input_state_cb(player, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_AUX_B))
temp |= INPUT_C;
if (input_state_cb(player, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_START))
temp |= INPUT_START;
}
player++;
ret = input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
break;
case DEVICE_PADDLE:
input.analog[i][0] = (input_state_cb(player, RETRO_DEVICE_ANALOG, 0, RETRO_DEVICE_ID_ANALOG_X) + 0x8000) >> 8;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_B))
temp |= INPUT_BUTTON1;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_START))
temp |= INPUT_START;
player++;
ret = input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
break;
case DEVICE_SPORTSPAD:
input.analog[i][0] = (input_state_cb(player, RETRO_DEVICE_ANALOG, 0, RETRO_DEVICE_ID_ANALOG_X) + 0x8000) >> 8;
input.analog[i][1] = (input_state_cb(player, RETRO_DEVICE_ANALOG, 0, RETRO_DEVICE_ID_ANALOG_Y) + 0x8000) >> 8;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_B))
temp |= INPUT_BUTTON1;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_A))
temp |= INPUT_BUTTON2;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_START))
temp |= INPUT_START;
player++;
ret = input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
break;
case DEVICE_PICO:
input.analog[i][0] = 0x03c + ((input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_X) + 0x7fff) * (0x17c-0x03c)) / 0xfffe;
input.analog[i][1] = 0x1fc + ((input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_Y) + 0x7fff) * (0x2f7-0x1fc)) / 0xfffe;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_LEFT))
temp |= INPUT_PICO_PEN;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_RIGHT))
temp |= INPUT_PICO_RED;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_WHEELUP))
pico_current = (pico_current - 1) & 7;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_WHEELDOWN))
pico_current = (pico_current + 1) & 7;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_UP))
temp |= INPUT_UP;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_DOWN))
temp |= INPUT_DOWN;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_LEFT))
temp |= INPUT_LEFT;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_RIGHT))
temp |= INPUT_RIGHT;
player++;
ret = input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
break;
case DEVICE_TEREBI:
input.analog[i][0] = ((input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_X) + 0x7fff) * 250) / 0xfffe;
input.analog[i][1] = ((input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_Y) + 0x7fff) * 250) / 0xfffe;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_LEFT))
temp |= INPUT_BUTTON1;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_MIDDLE))
temp |= INPUT_START;
player++;
ret = input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
break;
case DEVICE_GRAPHIC_BOARD:
input.analog[i][0] = ((input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_X) + 0x7fff) * 255) / 0xfffe;
input.analog[i][1] = ((input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_Y) + 0x7fff) * 255) / 0xfffe;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_LEFT))
temp |= INPUT_GRAPHIC_PEN;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_MIDDLE))
temp |= INPUT_GRAPHIC_DO;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_RIGHT))
temp |= INPUT_GRAPHIC_MENU;
player++;
ret = input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
break;
case DEVICE_XE_1AP:
{
int rx = input.analog[i][0] = input_state_cb(player, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X);
int ry = input.analog[i][1] = input_state_cb(player, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y);
if (abs(rx) > abs(ry))
input.analog[i+1][0] = (rx + 0x8000) >> 8;
else
input.analog[i+1][0] = (0x7fff - ry) >> 8;
input.analog[i][0] = (input_state_cb(player, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X) + 0x8000) >> 8;
input.analog[i][1] = (input_state_cb(player, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y) + 0x8000) >> 8;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_R))
temp |= INPUT_XE_A;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_R2))
temp |= INPUT_XE_B;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_L))
temp |= INPUT_XE_C;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_L2))
temp |= INPUT_XE_D;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_Y))
temp |= INPUT_XE_E1;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_B))
temp |= INPUT_XE_E2;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_SELECT))
temp |= INPUT_XE_SELECT;
if (ret & (1 << RETRO_DEVICE_ID_JOYPAD_START))
temp |= INPUT_XE_START;
player++;
ret = input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_MASK);
break;
}
default:
break;
}
input.pad[i] = temp;
}
}
static void osd_input_update_internal(void)
{
int i, player = 0;
unsigned int temp;
for (i = 0; i < MAX_INPUTS; i++)
{
temp = 0;
switch (input.dev[i])
{
case DEVICE_PAD6B:
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L))
temp |= INPUT_X;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_X))
temp |= INPUT_Y;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R))
temp |= INPUT_Z;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT))
temp |= INPUT_MODE;
case DEVICE_PAD3B:
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y))
temp |= INPUT_A;
case DEVICE_PAD2B:
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B))
temp |= INPUT_B;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A))
temp |= INPUT_C;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START))
temp |= INPUT_START;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP))
temp |= INPUT_UP;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN))
temp |= INPUT_DOWN;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT))
temp |= INPUT_LEFT;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT))
temp |= INPUT_RIGHT;
player++;
break;
case DEVICE_MOUSE:
input.analog[i][0] = input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_X);
if (config.invert_mouse)
input.analog[i][1] = input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_Y);
else
input.analog[i][1] = -input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_Y);
if (input.analog[i][0] < -255)
input.analog[i][0] = -255;
else if (input.analog[i][0] > 255)
input.analog[i][0] = 255;
if (input.analog[i][1] < -255)
input.analog[i][1] = -255;
else if (input.analog[i][1] > 255)
input.analog[i][1] = 255;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_LEFT))
temp |= INPUT_MOUSE_LEFT;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_RIGHT))
temp |= INPUT_MOUSE_RIGHT;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_WHEELDOWN))
temp |= INPUT_MOUSE_CENTER;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_MIDDLE))
temp |= INPUT_START;
player++;
break;
case DEVICE_LIGHTGUN:
if ( retro_gun_mode == RetroPointer )
{
input.analog[i][0] = ((input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_X) + 0x7fff) * bitmap.viewport.w) / 0xfffe;
input.analog[i][1] = ((input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_Y) + 0x7fff) * bitmap.viewport.h) / 0xfffe;
if (input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_PRESSED))
temp |= INPUT_A;
}
else
{
/* RetroLightgun is default */
if ( input_state_cb(player, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_IS_OFFSCREEN) )
{
input.analog[i][0] = -1000;
input.analog[i][1] = -1000;
}
else
{
input.analog[i][0] = ((input_state_cb(player, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_SCREEN_X) + 0x7fff) * bitmap.viewport.w) / 0xfffe;
input.analog[i][1] = ((input_state_cb(player, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_SCREEN_Y) + 0x7fff) * bitmap.viewport.h) / 0xfffe;
}
if (input_state_cb(player, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_TRIGGER))
temp |= INPUT_A;
if (input_state_cb(player, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_AUX_A))
temp |= INPUT_B;
if (input_state_cb(player, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_AUX_B))
temp |= INPUT_C;
if (input_state_cb(player, RETRO_DEVICE_LIGHTGUN, 0, RETRO_DEVICE_ID_LIGHTGUN_START))
temp |= INPUT_START;
}
player++;
break;
case DEVICE_PADDLE:
input.analog[i][0] = (input_state_cb(player, RETRO_DEVICE_ANALOG, 0, RETRO_DEVICE_ID_ANALOG_X) + 0x8000) >> 8;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B))
temp |= INPUT_BUTTON1;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START))
temp |= INPUT_START;
player++;
break;
case DEVICE_SPORTSPAD:
input.analog[i][0] = (input_state_cb(player, RETRO_DEVICE_ANALOG, 0, RETRO_DEVICE_ID_ANALOG_X) + 0x8000) >> 8;
input.analog[i][1] = (input_state_cb(player, RETRO_DEVICE_ANALOG, 0, RETRO_DEVICE_ID_ANALOG_Y) + 0x8000) >> 8;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B))
temp |= INPUT_BUTTON1;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A))
temp |= INPUT_BUTTON2;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START))
temp |= INPUT_START;
player++;
break;
case DEVICE_PICO:
input.analog[i][0] = 0x03c + ((input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_X) + 0x7fff) * (0x17c-0x03c)) / 0xfffe;
input.analog[i][1] = 0x1fc + ((input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_Y) + 0x7fff) * (0x2f7-0x1fc)) / 0xfffe;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_LEFT))
temp |= INPUT_PICO_PEN;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_RIGHT))
temp |= INPUT_PICO_RED;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_WHEELUP))
pico_current = (pico_current - 1) & 7;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_WHEELDOWN))
pico_current = (pico_current + 1) & 7;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP))
temp |= INPUT_UP;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN))
temp |= INPUT_DOWN;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT))
temp |= INPUT_LEFT;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT))
temp |= INPUT_RIGHT;
player++;
break;
case DEVICE_TEREBI:
input.analog[i][0] = ((input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_X) + 0x7fff) * 250) / 0xfffe;
input.analog[i][1] = ((input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_Y) + 0x7fff) * 250) / 0xfffe;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_LEFT))
temp |= INPUT_BUTTON1;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_MIDDLE))
temp |= INPUT_START;
player++;
break;
case DEVICE_GRAPHIC_BOARD:
input.analog[i][0] = ((input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_X) + 0x7fff) * 255) / 0xfffe;
input.analog[i][1] = ((input_state_cb(player, RETRO_DEVICE_POINTER, 0, RETRO_DEVICE_ID_POINTER_Y) + 0x7fff) * 255) / 0xfffe;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_LEFT))
temp |= INPUT_GRAPHIC_PEN;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_MIDDLE))
temp |= INPUT_GRAPHIC_DO;
if (input_state_cb(player, RETRO_DEVICE_MOUSE, 0, RETRO_DEVICE_ID_MOUSE_RIGHT))
temp |= INPUT_GRAPHIC_MENU;
player++;
break;
case DEVICE_XE_1AP:
{
int rx = input.analog[i][0] = input_state_cb(player, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_X);
int ry = input.analog[i][1] = input_state_cb(player, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_RIGHT, RETRO_DEVICE_ID_ANALOG_Y);
if (abs(rx) > abs(ry))
input.analog[i+1][0] = (rx + 0x8000) >> 8;
else
input.analog[i+1][0] = (0x7fff - ry) >> 8;
input.analog[i][0] = (input_state_cb(player, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_X) + 0x8000) >> 8;
input.analog[i][1] = (input_state_cb(player, RETRO_DEVICE_ANALOG, RETRO_DEVICE_INDEX_ANALOG_LEFT, RETRO_DEVICE_ID_ANALOG_Y) + 0x8000) >> 8;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R))
temp |= INPUT_XE_A;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_R2))
temp |= INPUT_XE_B;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L))
temp |= INPUT_XE_C;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_L2))
temp |= INPUT_XE_D;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_Y))
temp |= INPUT_XE_E1;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B))
temp |= INPUT_XE_E2;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT))
temp |= INPUT_XE_SELECT;
if (input_state_cb(player, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START))
temp |= INPUT_XE_START;
player++;
break;
}
default:
break;
}
input.pad[i] = temp;
}
}
void osd_input_update(void)
{
input_poll_cb();
/* Update RAM patches */
RAMCheatUpdate();
if (libretro_supports_bitmasks)
osd_input_update_internal_bitmasks();
else
osd_input_update_internal();
}
static void draw_cursor(int16_t x, int16_t y, uint16_t color)
{
int i;
/* crosshair center position */
uint16_t *ptr = (uint16_t *)bitmap.data + ((bitmap.viewport.y + y) * bitmap.width) + x + bitmap.viewport.x;
/* default crosshair dimension */
int x_start = x - 3;
int x_end = x + 3;
int y_start = y - 3;
int y_end = y + 3;
/* off-screen? */
if ( x < 0 && y < 0 )
return;
/* framebuffer limits */
if (x_start < -bitmap.viewport.x) x_start = -bitmap.viewport.x;
if (x_end >= (bitmap.viewport.w + bitmap.viewport.x)) x_end = bitmap.viewport.w + bitmap.viewport.x - 1;
if (y_start < -bitmap.viewport.y) y_start = -bitmap.viewport.y;
if (y_end >= (bitmap.viewport.h + bitmap.viewport.y)) y_end = bitmap.viewport.h + bitmap.viewport.y - 1;
/* draw crosshair */
for (i = (x_start - x); i <= (x_end - x); i++)
ptr[i] = (i & 1) ? color : 0xffff;
for (i = (y_start - y); i <= (y_end - y); i++)
ptr[i * bitmap.width] = (i & 1) ? color : 0xffff;
}
static void init_bitmap(void)
{
memset(&bitmap, 0, sizeof(bitmap));
bitmap.width = 720;
bitmap.height = 576;
bitmap.pitch = 720 * 2;
bitmap.data = (uint8_t *)bitmap_data_;
}
static void config_default(void)
{
int i;
/* sound options */
config.psg_preamp = 150;
config.fm_preamp = 100;
config.cdda_volume = 100;
config.pcm_volume = 100;
config.hq_fm = 1; /* high-quality FM resampling (slower) */
config.hq_psg = 1; /* high-quality PSG resampling (slower) */
config.filter = 1; /* no filter */
config.lp_range = 0x9999; /* 0.6 in 0.16 fixed point */
config.low_freq = 880;
config.high_freq = 5000;
config.lg = 100;
config.mg = 100;
config.hg = 100;
config.ym2612 = YM2612_DISCRETE;
config.ym2413 = 2; /* AUTO */
config.mono = 0; /* STEREO output */
#ifdef USE_PER_SOUND_CHANNELS_CONFIG
for (i = 0; i < 4; i++) config.psg_ch_volumes[i] = 100; /* individual channel volumes */
for (i = 0; i < 6; i++) config.md_ch_volumes[i] = 100; /* individual channel volumes */
for (i = 0; i < 9; i++) config.sms_fm_ch_volumes[i] = 100; /* individual channel volumes */
#endif
#ifdef HAVE_YM3438_CORE
config.ym3438 = 0;
#endif
#ifdef HAVE_OPLL_CORE
config.opll = 0;
#endif