#include <stdio.h>
#include <stdarg.h>
#include <string.h>
+#ifndef _WIN32
#include <sys/mman.h>
+#else
+#include <io.h>
+#include <windows.h>
+#include <sys/types.h>
+#endif
#include <errno.h>
#ifdef __MACH__
#include <libkern/OSCacheControl.h>
#endif
#include <pico/pico_int.h>
+#include <pico/state.h>
#include "common/input_pico.h"
#include "common/version.h"
#include "libretro.h"
static short __attribute__((aligned(4))) sndBuffer[2*44100/50];
-// FIXME: these 2 shouldn't be here
-static unsigned char PicoDraw2FB_[(8+320) * (8+240+8)];
-unsigned char *PicoDraw2FB = PicoDraw2FB_;
-
static void snd_write(int len);
#ifdef _WIN32
#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;
+#ifdef _WIN32
+/* mmap() replacement for Windows
+ *
+ * Author: Mike Frysinger <vapier@gentoo.org>
+ * Placed into the public domain
+ */
- req = (void *)addr;
- ret = mmap(req, size, PROT_READ | PROT_WRITE, flags, -1, 0);
- if (ret == MAP_FAILED) {
- lprintf("mmap(%08lx, %zd) failed: %d\n", addr, size, errno);
- return NULL;
- }
+/* 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
+ */
- if (addr != 0 && ret != (void *)addr) {
- lprintf("warning: wanted to map @%08lx, got %p\n",
- addr, ret);
+#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
- 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
+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;
+ }
+ }
+#else
+ int flags = MAP_PRIVATE | MAP_ANONYMOUS;
+ void *req, *ret;
+
+ req = (void *)addr;
+ ret = mmap(req, size, PROT_READ | PROT_WRITE, flags, -1, 0);
+ if (ret == MAP_FAILED) {
+ lprintf("mmap(%08lx, %zd) failed: %d\n", addr, size, errno);
+ return NULL;
+ }
+
+ 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;
+ }
+ }
+#endif
return ret;
}
int plat_mem_set_exec(void *ptr, size_t size)
{
- int ret = mprotect(ptr, size, PROT_READ | PROT_WRITE | PROT_EXEC);
- if (ret != 0)
- lprintf("mprotect(%p, %zd) failed: %d\n", ptr, size, errno);
-
+#ifdef _WIN32
+ int ret = VirtualProtect(ptr,size,PAGE_EXECUTE_READWRITE,0);
+ if (ret == 0)
+ lprintf("mprotect(%p, %zd) failed: %d\n", ptr, size, 0);
+#else
+ int ret = mprotect(ptr, size, PROT_READ | PROT_WRITE | PROT_EXEC);
+ if (ret != 0)
+ lprintf("mprotect(%p, %zd) failed: %d\n", ptr, size, errno);
+#endif
return ret;
}
void emu_32x_startup(void)
{
- PicoDrawSetOutFormat(PDF_RGB555, 1);
}
#ifndef ANDROID
info->geometry.aspect_ratio = 4.0 / 3.0;
}
-/* savestates - TODO */
+/* savestates */
+struct savestate_state {
+ const char *load_buf;
+ char *save_buf;
+ size_t size;
+ size_t pos;
+};
+
+size_t state_read(void *p, size_t size, size_t nmemb, void *file)
+{
+ struct savestate_state *state = file;
+ size_t bsize = size * nmemb;
+
+ if (state->pos + bsize > state->size) {
+ lprintf("savestate error: %u/%u\n",
+ state->pos + bsize, state->size);
+ bsize = state->size - state->pos;
+ if ((int)bsize <= 0)
+ return 0;
+ }
+
+ memcpy(p, state->load_buf + state->pos, bsize);
+ state->pos += bsize;
+ return bsize;
+}
+
+size_t state_write(void *p, size_t size, size_t nmemb, void *file)
+{
+ struct savestate_state *state = file;
+ size_t bsize = size * nmemb;
+
+ if (state->pos + bsize > state->size) {
+ lprintf("savestate error: %u/%u\n",
+ state->pos + bsize, state->size);
+ bsize = state->size - state->pos;
+ if ((int)bsize <= 0)
+ return 0;
+ }
+
+ memcpy(state->save_buf + state->pos, p, bsize);
+ state->pos += bsize;
+ return bsize;
+}
+
+size_t state_skip(void *p, size_t size, size_t nmemb, void *file)
+{
+ struct savestate_state *state = file;
+ size_t bsize = size * nmemb;
+
+ state->pos += bsize;
+ return bsize;
+}
+
+size_t state_eof(void *file)
+{
+ struct savestate_state *state = file;
+
+ return state->pos >= state->size;
+}
+
+int state_fseek(void *file, long offset, int whence)
+{
+ struct savestate_state *state = file;
+
+ switch (whence) {
+ case SEEK_SET:
+ state->pos = offset;
+ break;
+ case SEEK_CUR:
+ state->pos += offset;
+ break;
+ case SEEK_END:
+ state->pos = state->size + offset;
+ break;
+ }
+ return (int)state->pos;
+}
+
+/* savestate sizes vary wildly depending if cd/32x or
+ * carthw is active, so run the whole thing to get size */
size_t retro_serialize_size(void)
{
- return 0;
+ struct savestate_state state = { 0, };
+ int ret;
+
+ ret = PicoStateFP(&state, 1, NULL, state_skip, NULL, state_fseek);
+ if (ret != 0)
+ return 0;
+
+ return state.pos;
}
bool retro_serialize(void *data, size_t size)
{
- return false;
+ struct savestate_state state = { 0, };
+ int ret;
+
+ state.save_buf = data;
+ state.size = size;
+ state.pos = 0;
+
+ ret = PicoStateFP(&state, 1, NULL, state_write,
+ NULL, state_fseek);
+ return ret == 0;
}
bool retro_unserialize(const void *data, size_t size)
{
- return false;
+ struct savestate_state state = { 0, };
+ int ret;
+
+ state.load_buf = data;
+ state.size = size;
+ state.pos = 0;
+
+ ret = PicoStateFP(&state, 0, state_read, NULL,
+ state_eof, state_fseek);
+ return ret == 0;
}
/* cheats - TODO */
PicoAutoRgnOrder = 0x184; // US, EU, JP
PicoCDBuffers = 0;
- p32x_msh2_multiplier = MSH2_MULTI_DEFAULT;
- p32x_ssh2_multiplier = SSH2_MULTI_DEFAULT;
-
vout_width = 320;
vout_height = 240;
vout_buf = malloc(VOUT_MAX_WIDTH * VOUT_MAX_HEIGHT * 2);
PicoInit();
- PicoDrawSetOutFormat(PDF_RGB555, 1);
+ PicoDrawSetOutFormat(PDF_RGB555, 0);
PicoDrawSetOutBuf(vout_buf, vout_width * 2);
//PicoMessage = plat_status_msg_busy_next;
notaz.gp2x.de / picodrive.git / blobdiff