SVP save support

[picodrive.git] / Pico / cd / Area.c

diff --git a/Pico/cd/Area.c b/Pico/cd/Area.c
index b713104..4eab260 100644 (file)
--- a/Pico/cd/Area.c
+++ b/Pico/cd/Area.c
@@ -10,6 +10,7 @@
 // sn76496
 extern int *sn76496_regs;
 
+carthw_state_chunk *carthw_chunks;
 void (*PicoStateProgressCB)(const char *str) = 0;
 
 
@@ -38,6 +39,8 @@ typedef enum {
        CHUNK_SCD,
        CHUNK_RC,
        CHUNK_MISC_CD,
+       CHUNK_DEFAULT_COUNT
+       // CHUNK_CARTHW = 64,   // defined in PicoInt
 } chunk_name_e;
 
 
@@ -81,13 +84,17 @@ static int write_chunk(chunk_name_e name, int len, void *data, void *file)
 }
 
 
-#define CHECKED_WRITE(name,len,data) \
-       if (PicoStateProgressCB) PicoStateProgressCB(chunk_names[name]); \
-       if (!write_chunk(name, len, data, file)) return 1;
+#define CHECKED_WRITE(name,len,data) { \
+       if (PicoStateProgressCB && name < CHUNK_DEFAULT_COUNT) \
+               PicoStateProgressCB(chunk_names[name]); \
+       if (!write_chunk(name, len, data, file)) return 1; \
+}
 
-#define CHECKED_WRITE_BUFF(name,buff) \
-       if (PicoStateProgressCB) PicoStateProgressCB(chunk_names[name]); \
-       if (!write_chunk(name, sizeof(buff), &buff, file)) return 1;
+#define CHECKED_WRITE_BUFF(name,buff) { \
+       if (PicoStateProgressCB && name < CHUNK_DEFAULT_COUNT) \
+               PicoStateProgressCB(chunk_names[name]); \
+       if (!write_chunk(name, sizeof(buff), &buff, file)) return 1; \
+}
 
 PICO_INTERNAL int PicoCdSaveState(void *file)
 {
@@ -107,14 +114,14 @@ PICO_INTERNAL int PicoCdSaveState(void *file)
        CHECKED_WRITE_BUFF(CHUNK_VSRAM, Pico.vsram);
        CHECKED_WRITE_BUFF(CHUNK_MISC,  Pico.m);
        CHECKED_WRITE_BUFF(CHUNK_VIDEO, Pico.video);
-       if(PicoOpt&7) {
+       if (PicoOpt&7) {
                memset(buff, 0, sizeof(buff));
                z80_pack(buff);
                CHECKED_WRITE_BUFF(CHUNK_Z80, buff);
        }
-       if(PicoOpt&3)
+       if (PicoOpt&3)
                CHECKED_WRITE(CHUNK_PSG, 28*4, sn76496_regs);
-       if(PicoOpt&1)
+       if (PicoOpt&1)
                CHECKED_WRITE(CHUNK_FM, 0x200+4, ym2612_regs);
 
        if (PicoMCD & 1)
@@ -143,6 +150,13 @@ PICO_INTERNAL int PicoCdSaveState(void *file)
                        wram_2M_to_1M(Pico_mcd->word_ram2M);
        }
 
+       if (carthw_chunks != NULL)
+       {
+               carthw_state_chunk *chwc;
+               for (chwc = carthw_chunks; chwc->ptr != NULL; chwc++)
+                       CHECKED_WRITE(chwc->chunk, chwc->size, chwc->ptr);
+       }
+
        return 0;
 }
 
@@ -150,7 +164,7 @@ static int g_read_offs = 0;
 
 #define R_ERROR_RETURN(error) \
 { \
-       elprintf(EL_STATUS, "PicoCdLoadState @ %x: " error "\n", g_read_offs); \
+       elprintf(EL_STATUS, "PicoCdLoadState @ %x: " error, g_read_offs); \
        return 1; \
 }
 
@@ -189,7 +203,8 @@ PICO_INTERNAL int PicoCdLoadState(void *file)
                CHECKED_READ(1, buff);
                CHECKED_READ(4, &len);
                if (len < 0 || len > 1024*512) R_ERROR_RETURN("bad length");
-               if (buff[0] > CHUNK_FM && !(PicoMCD & 1)) R_ERROR_RETURN("cd chunk in non CD state?");
+               if (buff[0] > CHUNK_FM && buff[0] <= CHUNK_MISC_CD && !(PicoMCD & 1))
+                       R_ERROR_RETURN("cd chunk in non CD state?");
 
                switch (buff[0])
                {
@@ -235,24 +250,38 @@ PICO_INTERNAL int PicoCdLoadState(void *file)
                        case CHUNK_MISC_CD:     CHECKED_READ_BUFF(Pico_mcd->m); break;
 
                        default:
-                               elprintf(EL_STATUS, "PicoCdLoadState: skipping unknown chunk %i of size %i\n", buff[0], len);
+                               if (carthw_chunks != NULL)
+                               {
+                                       carthw_state_chunk *chwc;
+                                       for (chwc = carthw_chunks; chwc->ptr != NULL; chwc++) {
+                                               if (chwc->chunk == buff[0]) {
+                                                       CHECKED_READ2(chwc->size, chwc->ptr);
+                                                       goto breakswitch;
+                                               }
+                                       }
+                               }
+                               elprintf(EL_STATUS, "PicoCdLoadState: skipping unknown chunk %i of size %i", buff[0], len);
                                areaSeek(file, len, SEEK_CUR);
                                break;
                }
+               breakswitch:;
        }
 
-       /* after load events */
-       if (Pico_mcd->s68k_regs[3]&4) // 1M mode?
-               wram_2M_to_1M(Pico_mcd->word_ram2M);
-       PicoMemResetCD(Pico_mcd->s68k_regs[3]);
+       if (PicoMCD & 1)
+       {
+               /* after load events */
+               if (Pico_mcd->s68k_regs[3]&4) // 1M mode?
+                       wram_2M_to_1M(Pico_mcd->word_ram2M);
+               PicoMemResetCD(Pico_mcd->s68k_regs[3]);
 #ifdef _ASM_CD_MEMORY_C
-       if (Pico_mcd->s68k_regs[3]&4)
-               PicoMemResetCDdecode(Pico_mcd->s68k_regs[3]);
+               if (Pico_mcd->s68k_regs[3]&4)
+                       PicoMemResetCDdecode(Pico_mcd->s68k_regs[3]);
 #endif
-       if (Pico_mcd->m.audio_track > 0 && Pico_mcd->m.audio_track < Pico_mcd->TOC.Last_Track)
-               mp3_start_play(Pico_mcd->TOC.Tracks[Pico_mcd->m.audio_track].F, Pico_mcd->m.audio_offset);
-       // restore hint vector
-        *(unsigned short *)(Pico_mcd->bios + 0x72) = Pico_mcd->m.hint_vector;
+               if (Pico_mcd->m.audio_track > 0 && Pico_mcd->m.audio_track < Pico_mcd->TOC.Last_Track)
+                       mp3_start_play(Pico_mcd->TOC.Tracks[Pico_mcd->m.audio_track].F, Pico_mcd->m.audio_offset);
+               // restore hint vector
+               *(unsigned short *)(Pico_mcd->bios + 0x72) = Pico_mcd->m.hint_vector;
+       }
 
        return 0;
 }
@@ -273,7 +302,8 @@ int PicoCdLoadStateGfx(void *file)
                CHECKED_READ(1, buff);
                CHECKED_READ(4, &len);
                if (len < 0 || len > 1024*512) R_ERROR_RETURN("bad length");
-               if (buff[0] > CHUNK_FM && !(PicoMCD & 1)) R_ERROR_RETURN("cd chunk in non CD state?");
+               if (buff[0] > CHUNK_FM && buff[0] <= CHUNK_MISC_CD && !(PicoMCD & 1))
+                       R_ERROR_RETURN("cd chunk in non CD state?");
 
                switch (buff[0])
                {