#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
void emu_32x_startup(void)
{
- PicoDrawSetOutFormat(PDF_RGB555, 1);
}
#ifndef ANDROID
{
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" },
+#ifdef DRC_SH2
+ { "picodrive_drc", "Dynamic recompilers; enabled|disabled" },
+#endif
{ NULL, NULL },
};
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 */
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;
}
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));
+
+#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();
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;
PicoMCDopenTray = disk_tray_open;
PicoMCDcloseTray = disk_tray_close;
+
+ update_variables();
}
void retro_deinit(void)
notaz.gp2x.de / picodrive.git / blobdiff