#include "../libpcsxcore/psxcounters.h"
#include "../libpcsxcore/psxmem_map.h"
#include "../libpcsxcore/new_dynarec/new_dynarec.h"
+#include "../libpcsxcore/cheat.h"
#include "../plugins/dfsound/out.h"
#include "../plugins/gpulib/cspace.h"
#include "main.h"
static retro_audio_sample_batch_t audio_batch_cb;
static void *vout_buf;
+static int vout_width, vout_height;
+static int vout_doffs_old, vout_fb_dirty;
+static bool vout_can_dupe;
+
static int samples_sent, samples_to_send;
static int plugins_opened;
-static int native_rgb565;
+
+/* memory card data */
+extern char Mcd1Data[MCD_SIZE];
+extern char McdDisable[2];
/* PCSX ReARMed core calls and stuff */
int in_type1, in_type2;
int in_keystate;
int in_enable_vibration;
+static void init_memcard(char *mcd_data)
+{
+ unsigned off = 0;
+ unsigned i;
+
+ memset(mcd_data, 0, MCD_SIZE);
+
+ mcd_data[off++] = 'M';
+ mcd_data[off++] = 'C';
+ off += 0x7d;
+ mcd_data[off++] = 0x0e;
+
+ for (i = 0; i < 15; i++) {
+ mcd_data[off++] = 0xa0;
+ off += 0x07;
+ mcd_data[off++] = 0xff;
+ mcd_data[off++] = 0xff;
+ off += 0x75;
+ mcd_data[off++] = 0xa0;
+ }
+
+ for (i = 0; i < 20; i++) {
+ mcd_data[off++] = 0xff;
+ mcd_data[off++] = 0xff;
+ mcd_data[off++] = 0xff;
+ mcd_data[off++] = 0xff;
+ off += 0x04;
+ mcd_data[off++] = 0xff;
+ mcd_data[off++] = 0xff;
+ off += 0x76;
+ }
+}
+
static int vout_open(void)
{
return 0;
static void vout_set_mode(int w, int h, int raw_w, int raw_h, int bpp)
{
+ vout_width = w;
+ vout_height = h;
}
+#ifndef FRONTEND_SUPPORTS_RGB565
static void convert(void *buf, size_t bytes)
{
unsigned int i, v, *p = buf;
p[i] = (v & 0x001f001f) | ((v >> 1) & 0x7fe07fe0);
}
}
+#endif
static void vout_flip(const void *vram, int stride, int bgr24, int w, int h)
{
unsigned short *dest = vout_buf;
const unsigned short *src = vram;
- int dstride = w, h1 = h;
+ int dstride = vout_width, h1 = h;
+ int doffs;
if (vram == NULL) {
// blanking
goto out;
}
+ doffs = (vout_height - h) * dstride;
+ doffs += (dstride - w) / 2 & ~1;
+ if (doffs != vout_doffs_old) {
+ // clear borders
+ memset(vout_buf, 0, dstride * h * 2);
+ vout_doffs_old = doffs;
+ }
+ dest += doffs;
+
if (bgr24)
{
// XXX: could we switch to RETRO_PIXEL_FORMAT_XRGB8888 here?
}
out:
- if (!native_rgb565)
- convert(vout_buf, w * h * 2);
- video_cb(vout_buf, w, h, w * 2);
+#ifndef FRONTEND_SUPPORTS_RGB565
+ convert(vout_buf, vout_width * vout_height * 2);
+#endif
+ vout_fb_dirty = 1;
pl_rearmed_cbs.flip_cnt++;
}
info->geometry.aspect_ratio = 4.0 / 3.0;
}
-/* TODO */
+/* savestates */
size_t retro_serialize_size(void)
{
- return 0;
+ // it's currently 4380651 bytes, but have some reserved for future
+ return 0x430000;
+}
+
+struct save_fp {
+ char *buf;
+ size_t pos;
+ int is_write;
+};
+
+static void *save_open(const char *name, const char *mode)
+{
+ struct save_fp *fp;
+
+ if (name == NULL || mode == NULL)
+ return NULL;
+
+ fp = malloc(sizeof(*fp));
+ if (fp == NULL)
+ return NULL;
+
+ fp->buf = (char *)name;
+ fp->pos = 0;
+ fp->is_write = (mode[0] == 'w' || mode[1] == 'w');
+
+ return fp;
+}
+
+static int save_read(void *file, void *buf, u32 len)
+{
+ struct save_fp *fp = file;
+ if (fp == NULL || buf == NULL)
+ return -1;
+
+ memcpy(buf, fp->buf + fp->pos, len);
+ fp->pos += len;
+ return len;
+}
+
+static int save_write(void *file, const void *buf, u32 len)
+{
+ struct save_fp *fp = file;
+ if (fp == NULL || buf == NULL)
+ return -1;
+
+ memcpy(fp->buf + fp->pos, buf, len);
+ fp->pos += len;
+ return len;
+}
+
+static long save_seek(void *file, long offs, int whence)
+{
+ struct save_fp *fp = file;
+ if (fp == NULL)
+ return -1;
+
+ switch (whence) {
+ case SEEK_CUR:
+ fp->pos += offs;
+ return fp->pos;
+ case SEEK_SET:
+ fp->pos = offs;
+ return fp->pos;
+ default:
+ return -1;
+ }
+}
+
+static void save_close(void *file)
+{
+ struct save_fp *fp = file;
+ size_t r_size = retro_serialize_size();
+ if (fp == NULL)
+ return;
+
+ if (fp->pos > r_size)
+ SysPrintf("ERROR: save buffer overflow detected\n");
+ else if (fp->is_write && fp->pos < r_size)
+ // make sure we don't save trash in leftover space
+ memset(fp->buf + fp->pos, 0, r_size - fp->pos);
+ free(fp);
}
bool retro_serialize(void *data, size_t size)
{
- return false;
+ int ret = SaveState(data);
+ return ret == 0 ? true : false;
}
bool retro_unserialize(const void *data, size_t size)
{
- return false;
+ int ret = LoadState(data);
+ return ret == 0 ? true : false;
}
void retro_cheat_reset(void)
{
+ ClearAllCheats();
}
void retro_cheat_set(unsigned index, bool enabled, const char *code)
{
+ char buf[256];
+ int ret;
+
+ // cheat funcs are destructive, need a copy..
+ strncpy(buf, code, sizeof(buf));
+ buf[sizeof(buf) - 1] = 0;
+
+ if (index < NumCheats)
+ ret = EditCheat(index, "", buf);
+ else
+ ret = AddCheat("", buf);
+
+ if (ret != 0)
+ SysPrintf("Failed to set cheat %#u\n", index);
+ else if (index < NumCheats)
+ Cheats[index].Enabled = enabled;
}
bool retro_load_game(const struct retro_game_info *info)
{
+#ifdef FRONTEND_SUPPORTS_RGB565
enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565;
if (environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) {
- native_rgb565 = 1;
- fprintf(stderr, "RGB565 supported, using it\n");
+ SysPrintf("RGB565 supported, using it\n");
}
+#endif
if (plugins_opened) {
ClosePlugins();
/* have to reload after set_cd_image for correct cdr plugin */
if (LoadPlugins() == -1) {
- printf("faled to load plugins\n");
+ SysPrintf("failed to load plugins\n");
return false;
}
NetOpened = 0;
if (OpenPlugins() == -1) {
- printf("faled to open plugins\n");
+ SysPrintf("failed to open plugins\n");
return false;
}
Config.PsxAuto = 1;
if (CheckCdrom() == -1) {
- printf("unsupported/invalid CD image: %s\n", info->path);
+ SysPrintf("unsupported/invalid CD image: %s\n", info->path);
return false;
}
SysReset();
if (LoadCdrom() == -1) {
- printf("could not load CD-ROM!\n");
+ SysPrintf("could not load CD-ROM!\n");
return false;
}
emu_on_new_cd(0);
void *retro_get_memory_data(unsigned id)
{
- return NULL;
+ return Mcd1Data;
}
size_t retro_get_memory_size(unsigned id)
{
- return 0;
+ return MCD_SIZE;
}
void retro_reset(void)
psxCpu->Execute();
samples_to_send += 44100 / 60;
+
+ video_cb((vout_fb_dirty || !vout_can_dupe) ? vout_buf : NULL,
+ vout_width, vout_height, vout_width * 2);
+ vout_fb_dirty = 0;
}
void retro_init(void)
ret = emu_core_preinit();
ret |= emu_core_init();
if (ret != 0) {
- printf("PCSX init failed, sorry\n");
+ SysPrintf("PCSX init failed.\n");
exit(1);
}
}
}
if (f != NULL) {
- printf("found BIOS file: %s\n", Config.Bios);
+ SysPrintf("found BIOS file: %s\n", Config.Bios);
fclose(f);
}
else
- printf("no BIOS files found.\n");
+ SysPrintf("no BIOS files found.\n");
level = 1;
environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level);
+
+ environ_cb(RETRO_ENVIRONMENT_GET_CAN_DUPE, &vout_can_dupe);
+
+ /* Set how much slower PSX CPU runs * 100 (so that 200 is 2 times)
+ * we have to do this because cache misses and some IO penalties
+ * are not emulated. Warning: changing this may break compatibility. */
+#ifdef __ARM_ARCH_7A__
+ cycle_multiplier = 175;
+#else
+ cycle_multiplier = 200;
+#endif
+
+ McdDisable[0] = 0;
+ McdDisable[1] = 1;
+ init_memcard(Mcd1Data);
+
+ SaveFuncs.open = save_open;
+ SaveFuncs.read = save_read;
+ SaveFuncs.write = save_write;
+ SaveFuncs.seek = save_seek;
+ SaveFuncs.close = save_close;
}
void retro_deinit(void)
free(vout_buf);
vout_buf = NULL;
}
-