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savestate loader in menu

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@56 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-02-25 19:20:45 +00:00
parent d55c53ab56
commit 4ffd28584e
5 changed files with 302 additions and 75 deletions
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160
gp2x/menu.c
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@ -18,6 +18,7 @@
#include "version.h"
#include "Pico/PicoInt.h"
#include "zlib/zlib.h"
#ifndef _DIRENT_HAVE_D_TYPE
#error "need d_type for file browser
@ -390,6 +391,139 @@ static char *romsel_loop(char *curr_path)
return ret;
}
// ------------ savestate loader ------------
static void menu_prepare_bg(void);
static int state_slot_flags = 0;
static void state_check_slots(void)
{
int slot;
state_slot_flags = 0;
for (slot = 0; slot < 10; slot++)
{
if (emu_check_save_file(slot))
{
state_slot_flags |= 1 << slot;
}
}
}
static void draw_savestate_bg(int slot)
{
struct PicoVideo tmp_pv;
unsigned short tmp_cram[0x40];
unsigned short tmp_vsram[0x40];
void *tmp_vram, *file;
char *fname;
fname = emu_GetSaveFName(1, 0, slot);
if (!fname) return;
tmp_vram = malloc(sizeof(Pico.vram));
if (tmp_vram == NULL) return;
memcpy(tmp_vram, Pico.vram, sizeof(Pico.vram));
memcpy(tmp_cram, Pico.cram, sizeof(Pico.cram));
memcpy(tmp_vsram, Pico.vsram, sizeof(Pico.vsram));
memcpy(&tmp_pv, &Pico.video, sizeof(Pico.video));
if (strcmp(fname + strlen(fname) - 3, ".gz") == 0) {
file = gzopen(fname, "rb");
emu_set_save_cbs(1);
} else {
file = fopen(fname, "rb");
emu_set_save_cbs(0);
}
if (file) {
if (PicoMCD & 1) {
PicoCdLoadStateGfx(file);
} else {
areaSeek(file, 0x10020, SEEK_SET); // skip header and RAM in state file
areaRead(Pico.vram, 1, sizeof(Pico.vram), file);
areaSeek(file, 0x2000, SEEK_CUR);
areaRead(Pico.cram, 1, sizeof(Pico.cram), file);
areaRead(Pico.vsram, 1, sizeof(Pico.vsram), file);
areaSeek(file, 0x221a0, SEEK_SET);
areaRead(&Pico.video, 1, sizeof(Pico.video), file);
}
areaClose(file);
}
emu_forced_frame();
gp2x_memcpy_buffers((1<<2), gp2x_screen, 0, 320*240*2);
menu_prepare_bg();
memcpy(Pico.vram, tmp_vram, sizeof(Pico.vram));
memcpy(Pico.cram, tmp_cram, sizeof(Pico.cram));
memcpy(Pico.vsram, tmp_vsram, sizeof(Pico.vsram));
memcpy(&Pico.video, &tmp_pv, sizeof(Pico.video));
free(tmp_vram);
}
static void draw_savestate_menu(int menu_sel, int is_loading)
{
int tl_x = 25, tl_y = 60, y, i;
if (state_slot_flags & (1 << menu_sel))
draw_savestate_bg(menu_sel);
gp2x_pd_clone_buffer2();
gp2x_text_out8(tl_x, 30, is_loading ? "Load state" : "Save state");
/* draw all 10 slots */
y = tl_y;
for (i = 0; i < 10; i++, y+=10)
{
gp2x_text_out8(tl_x, y, "SLOT %i (%s)", i, (state_slot_flags & (1 << i)) ? "USED" : "free");
}
gp2x_text_out8(tl_x, y, "back");
// draw cursor
gp2x_text_out8(tl_x - 16, tl_y + menu_sel*10, ">");
gp2x_video_flip2();
}
static int savestate_menu_loop(int is_loading)
{
int menu_sel = 10, menu_sel_max = 10;
unsigned long inp = 0;
state_check_slots();
for(;;)
{
draw_savestate_menu(menu_sel, is_loading);
inp = wait_for_input(GP2X_UP|GP2X_DOWN|GP2X_B|GP2X_X);
if(inp & GP2X_UP ) {
do {
menu_sel--; if (menu_sel < 0) menu_sel = menu_sel_max;
} while (!(state_slot_flags & (1 << menu_sel)) && menu_sel != menu_sel_max && is_loading);
}
if(inp & GP2X_DOWN) {
do {
menu_sel++; if (menu_sel > menu_sel_max) menu_sel = 0;
} while (!(state_slot_flags & (1 << menu_sel)) && menu_sel != menu_sel_max && is_loading);
}
if(inp & GP2X_B) { // save/load
if (menu_sel < 10) {
state_slot = menu_sel;
if (emu_SaveLoadGame(is_loading, 0)) {
strcpy(menuErrorMsg, is_loading ? "Load failed" : "Save failed");
return 1;
}
return 0;
} else return 1;
}
if(inp & GP2X_X) return 1;
}
}
// -------------- key config --------------
static char *usb_joy_key_name(int joy, int num)
@ -1018,20 +1152,16 @@ static void menu_loop_root(void)
break;
case 1: // save state
if (rom_data) {
if(emu_SaveLoadGame(0, 0)) {
strcpy(menuErrorMsg, "save failed");
if(savestate_menu_loop(0))
continue;
}
engineState = PGS_Running;
return;
}
break;
case 2: // load state
if (rom_data) {
if(emu_SaveLoadGame(1, 0)) {
strcpy(menuErrorMsg, "load failed");
if(savestate_menu_loop(1))
continue;
}
engineState = PGS_Running;
return;
}
@ -1074,21 +1204,29 @@ static void menu_loop_root(void)
}
static void menu_gfx_prepare(void)
static void menu_prepare_bg(void)
{
extern int localPal[0x100];
int i;
int c, i;
// don't clear old palette just for fun (but make it dark)
for (i = 0x100-1; i >= 0; i--)
localPal[i] = (localPal[i] >> 2) & 0x003f3f3f;
for (i = 0x100-1; i >= 0; i--) {
c = localPal[i];
localPal[i] = ((c >> 1) & 0x007f7f7f) - ((c >> 3) & 0x001f1f1f);
}
localPal[0xe0] = 0x00000000; // reserved pixels for OSD
localPal[0xf0] = 0x00ffffff;
gp2x_video_setpalette(localPal, 0x100);
}
static void menu_gfx_prepare(void)
{
menu_prepare_bg();
// switch to 8bpp
gp2x_video_changemode2(8);
gp2x_video_RGB_setscaling(320, 240);
gp2x_video_setpalette(localPal, 0x100);
gp2x_video_flip2();
}