#ifndef _WIN32
#include <sys/mman.h>
#else
+#include <io.h>
#include <windows.h>
+#include <sys/types.h>
#endif
#include <errno.h>
#ifdef __MACH__
#include "common/version.h"
#include "libretro.h"
-#ifndef MAP_ANONYMOUS
-#define MAP_ANONYMOUS MAP_ANON
-#endif
-
static retro_video_refresh_t video_cb;
static retro_input_poll_t input_poll_cb;
static retro_input_state_t input_state_cb;
#define VOUT_MAX_WIDTH 320
#define VOUT_MAX_HEIGHT 240
static void *vout_buf;
-static int vout_width, vout_height;
+static int vout_width, vout_height, vout_offset;
static short __attribute__((aligned(4))) sndBuffer[2*44100/50];
}
#ifdef _WIN32
-void* mmap(void *desired_addr,
- size_t len,
- int mmap_prot,
- int mmap_flags,
- HANDLE fd,
- size_t off)
-{
- HANDLE fmh;
- void *base_addr;
- SECURITY_ATTRIBUTES sa;
- sa.nLength = sizeof(sa);
- sa.lpSecurityDescriptor = NULL;
- sa.bInheritHandle = TRUE;
- fmh = CreateFileMapping(fd, &sa, PAGE_WRITECOPY , 0, len, NULL);
- if (fmh == NULL){ return NULL; }
- base_addr = MapViewOfFileEx(fmh, FILE_MAP_WRITE|FILE_MAP_READ, 0, off, len, desired_addr);
- CloseHandle(fmh);
- return base_addr;
-}
-
-void munmap(
- void *base_addr,
- size_t len
-)
-{
- UnmapViewOfFile(base_addr);
-}
-#define MAP_FAILED 0
-#define PROT_READ 0
-#define PROT_WRITE 0
-#define MAP_PRIVATE 0
-#define MAP_ANONYMOUS 0
+/* mmap() replacement for Windows
+ *
+ * Author: Mike Frysinger <vapier@gentoo.org>
+ * Placed into the public domain
+ */
+
+/* References:
+ * CreateFileMapping: http://msdn.microsoft.com/en-us/library/aa366537(VS.85).aspx
+ * CloseHandle: http://msdn.microsoft.com/en-us/library/ms724211(VS.85).aspx
+ * MapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366761(VS.85).aspx
+ * UnmapViewOfFile: http://msdn.microsoft.com/en-us/library/aa366882(VS.85).aspx
+ */
+
+#define PROT_READ 0x1
+#define PROT_WRITE 0x2
+/* This flag is only available in WinXP+ */
+#ifdef FILE_MAP_EXECUTE
+#define PROT_EXEC 0x4
+#else
+#define PROT_EXEC 0x0
+#define FILE_MAP_EXECUTE 0
#endif
-void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed)
-{
-#ifndef _WIN32
- int flags = 0;
- void *ret = mmap((void*)addr,size,PROT_READ | PROT_WRITE, flags, -1, 0);
- if (addr != 0 && ret != (void *)addr) {
- lprintf("warning: wanted to map @%08lx, got %p\n",
- addr, ret);
- if (is_fixed) {
- munmap(ret, size);
- return NULL;
- }
- }
+#define MAP_SHARED 0x01
+#define MAP_PRIVATE 0x02
+#define MAP_ANONYMOUS 0x20
+#define MAP_ANON MAP_ANONYMOUS
+#define MAP_FAILED ((void *) -1)
+
+#ifdef __USE_FILE_OFFSET64
+# define DWORD_HI(x) (x >> 32)
+# define DWORD_LO(x) ((x) & 0xffffffff)
#else
+# define DWORD_HI(x) (0)
+# define DWORD_LO(x) (x)
+#endif
+
+static void *mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset)
+{
+ if (prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC))
+ return MAP_FAILED;
+ if (fd == -1) {
+ if (!(flags & MAP_ANON) || offset)
+ return MAP_FAILED;
+ } else if (flags & MAP_ANON)
+ return MAP_FAILED;
+
+ DWORD flProtect;
+ if (prot & PROT_WRITE) {
+ if (prot & PROT_EXEC)
+ flProtect = PAGE_EXECUTE_READWRITE;
+ else
+ flProtect = PAGE_READWRITE;
+ } else if (prot & PROT_EXEC) {
+ if (prot & PROT_READ)
+ flProtect = PAGE_EXECUTE_READ;
+ else if (prot & PROT_EXEC)
+ flProtect = PAGE_EXECUTE;
+ } else
+ flProtect = PAGE_READONLY;
+
+ off_t end = length + offset;
+ HANDLE mmap_fd, h;
+ if (fd == -1)
+ mmap_fd = INVALID_HANDLE_VALUE;
+ else
+ mmap_fd = (HANDLE)_get_osfhandle(fd);
+ h = CreateFileMapping(mmap_fd, NULL, flProtect, DWORD_HI(end), DWORD_LO(end), NULL);
+ if (h == NULL)
+ return MAP_FAILED;
+
+ DWORD dwDesiredAccess;
+ if (prot & PROT_WRITE)
+ dwDesiredAccess = FILE_MAP_WRITE;
+ else
+ dwDesiredAccess = FILE_MAP_READ;
+ if (prot & PROT_EXEC)
+ dwDesiredAccess |= FILE_MAP_EXECUTE;
+ if (flags & MAP_PRIVATE)
+ dwDesiredAccess |= FILE_MAP_COPY;
+ void *ret = MapViewOfFile(h, dwDesiredAccess, DWORD_HI(offset), DWORD_LO(offset), length);
+ if (ret == NULL) {
+ CloseHandle(h);
+ ret = MAP_FAILED;
+ }
+ return ret;
+}
+
+static void munmap(void *addr, size_t length)
+{
+ UnmapViewOfFile(addr);
+ /* ruh-ro, we leaked handle from CreateFileMapping() ... */
+}
+#endif
+
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS MAP_ANON
+#endif
+
+void *plat_mmap(unsigned long addr, size_t size, int need_exec, int is_fixed)
+{
int flags = MAP_PRIVATE | MAP_ANONYMOUS;
void *req, *ret;
return NULL;
}
}
-#endif
return ret;
}
memset(vout_buf, 0, 320 * 240 * 2);
vout_width = is_32cols ? 256 : 320;
PicoDrawSetOutBuf(vout_buf, vout_width * 2);
+
+ vout_height = line_count;
+ vout_offset = vout_width * start_line;
}
void emu_32x_startup(void)
{
static const struct retro_variable vars[] = {
//{ "region", "Region; Auto|NTSC|PAL" },
+ { "picodrive_input1", "Input device 1; 3 button pad|6 button pad|None" },
+ { "picodrive_input2", "Input device 2; 3 button pad|6 button pad|None" },
+ { "picodrive_sprlim", "No sprite limit; disabled|enabled" },
+ { "picodrive_ramcart", "MegaCD RAM cart; disabled|enabled" },
+#ifdef DRC_SH2
+ { "picodrive_drc", "Dynamic recompilers; enabled|disabled" },
+#endif
{ NULL, NULL },
};
info->timing.fps = Pico.m.pal ? 50 : 60;
info->timing.sample_rate = 44100;
info->geometry.base_width = 320;
- info->geometry.base_height = 240;
+ info->geometry.base_height = vout_height;
info->geometry.max_width = VOUT_MAX_WIDTH;
info->geometry.max_height = VOUT_MAX_HEIGHT;
- info->geometry.aspect_ratio = 4.0 / 3.0;
+ info->geometry.aspect_ratio = 0.0f;
}
/* savestates */
static bool disk_set_image_index(unsigned int index)
{
- cd_img_type cd_type;
+ enum cd_img_type cd_type;
int ret;
if (index >= sizeof(disks) / sizeof(disks[0]))
ret = -1;
cd_type = PicoCdCheck(disks[index].fname, NULL);
if (cd_type != CIT_NOT_CD)
- ret = Insert_CD(disks[index].fname, cd_type);
+ ret = cdd_load(disks[index].fname, cd_type);
if (ret != 0) {
lprintf("Load failed, invalid CD image?\n");
return 0;
static const char * const biosfiles_us[] = {
- "us_scd1_9210", "us_scd2_9306", "SegaCDBIOS9303", "bios_CD_U"
+ "us_scd2_9306", "SegaCDBIOS9303", "us_scd1_9210", "bios_CD_U"
};
static const char * const biosfiles_eu[] = {
- "eu_mcd1_9210", "eu_mcd2_9306", "eu_mcd2_9303", "bios_CD_E"
+ "eu_mcd2_9306", "eu_mcd2_9303", "eu_mcd1_9210", "bios_CD_E"
};
static const char * const biosfiles_jp[] = {
- "jp_mcd1_9112", "jp_mcd1_9111", "bios_CD_J"
+ "jp_mcd2_921222", "jp_mcd1_9112", "jp_mcd1_9111", "bios_CD_J"
};
static void make_system_path(char *buf, size_t buf_size,
enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565;
if (!environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) {
- lprintf("RGB565 suppot required, sorry\n");
+ lprintf("RGB565 support required, sorry\n");
return false;
}
PicoWriteSound = snd_write;
memset(sndBuffer, 0, sizeof(sndBuffer));
PsndOut = sndBuffer;
- PsndRerate(1);
+ PsndRerate(0);
return true;
}
size_t retro_get_memory_size(unsigned id)
{
+ unsigned int i;
+ int sum;
+
if (id != RETRO_MEMORY_SAVE_RAM)
return 0;
if (PicoAHW & PAHW_MCD)
// bram
return 0x2000;
- else
+
+ if (Pico.m.frame_count == 0)
return SRam.size;
+
+ // if game doesn't write to sram, don't report it to
+ // libretro so that RA doesn't write out zeroed .srm
+ for (i = 0, sum = 0; i < SRam.size; i++)
+ sum |= SRam.data[i];
+
+ return (sum != 0) ? SRam.size : 0;
}
void retro_reset(void)
audio_batch_cb(PsndOut, len / 4);
}
+static enum input_device input_name_to_val(const char *name)
+{
+ if (strcmp(name, "3 button pad") == 0)
+ return PICO_INPUT_PAD_3BTN;
+ if (strcmp(name, "6 button pad") == 0)
+ return PICO_INPUT_PAD_6BTN;
+ if (strcmp(name, "None") == 0)
+ return PICO_INPUT_NOTHING;
+
+ lprintf("invalid picodrive_input: '%s'\n", name);
+ return PICO_INPUT_PAD_3BTN;
+}
+
+static void update_variables(void)
+{
+ struct retro_variable var;
+
+ var.value = NULL;
+ var.key = "picodrive_input1";
+ if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
+ PicoSetInputDevice(0, input_name_to_val(var.value));
+
+ var.value = NULL;
+ var.key = "picodrive_input2";
+ if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
+ PicoSetInputDevice(1, input_name_to_val(var.value));
+
+ var.value = NULL;
+ var.key = "picodrive_sprlim";
+ if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
+ if (strcmp(var.value, "enabled") == 0)
+ PicoOpt |= POPT_DIS_SPRITE_LIM;
+ else
+ PicoOpt &= ~POPT_DIS_SPRITE_LIM;
+ }
+
+ var.value = NULL;
+ var.key = "picodrive_ramcart";
+ if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
+ if (strcmp(var.value, "enabled") == 0)
+ PicoOpt |= POPT_EN_MCD_RAMCART;
+ else
+ PicoOpt &= ~POPT_EN_MCD_RAMCART;
+ }
+
+#ifdef DRC_SH2
+ var.value = NULL;
+ var.key = "picodrive_drc";
+ if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) {
+ if (strcmp(var.value, "enabled") == 0)
+ PicoOpt |= POPT_EN_DRC;
+ else
+ PicoOpt &= ~POPT_EN_DRC;
+ }
+#endif
+}
+
void retro_run(void)
{
bool updated = false;
int pad, i;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE_UPDATE, &updated) && updated)
- ; //update_variables(true);
+ update_variables();
input_poll_cb();
PicoFrame();
- video_cb(vout_buf, vout_width, vout_height, vout_width * 2);
+ video_cb((short *)vout_buf + vout_offset,
+ vout_width, vout_height, vout_width * 2);
}
void retro_init(void)
| POPT_EN_32X|POPT_EN_PWM
| POPT_ACC_SPRITES|POPT_DIS_32C_BORDER;
#ifdef __arm__
- PicoOpt |= POPT_EN_SVP_DRC;
+ PicoOpt |= POPT_EN_DRC;
#endif
PsndRate = 44100;
PicoAutoRgnOrder = 0x184; // US, EU, JP
- PicoCDBuffers = 0;
vout_width = 320;
vout_height = 240;
//PicoMessage = plat_status_msg_busy_next;
PicoMCDopenTray = disk_tray_open;
PicoMCDcloseTray = disk_tray_close;
+
+ update_variables();
}
void retro_deinit(void)
notaz.gp2x.de / picodrive.git / blobdiff