void MDFNSS_SaveSM(Stream *st, bool data_only, const MDFN_Surface *surface, const MDFN_Rect *DisplayRect, const int32 *LineWidths)
{
StateMem sm(st);
if(data_only)
{
MDFN_StateAction(&sm, 0, true);
sm.ThrowDeferred();
}
else
{
static const char *header_magic = "MDFNSVST";
int64 start_pos;
uint8 header[32];
int neowidth = 0, neoheight = 0;
memset(header, 0, sizeof(header));
if(surface && DisplayRect && LineWidths)
{
bool is_multires = FALSE;
// We'll want to use the nominal width if the source rectangle is > 25% off on either axis, or the source image has
// multiple horizontal resolutions.
neowidth = MDFNGameInfo->nominal_width;
neoheight = MDFNGameInfo->nominal_height;
if(LineWidths[0] != ~0)
{
int32 first_w = LineWidths[DisplayRect->y];
for(int y = 0; y < DisplayRect->h; y++)
{
if(LineWidths[DisplayRect->y + y] != first_w)
{
//puts("Multires!");
is_multires = TRUE;
}
}
}
if(!is_multires)
{
if(((double)DisplayRect->w / MDFNGameInfo->nominal_width) > 0.75 && ((double)DisplayRect->w / MDFNGameInfo->nominal_width) < 1.25)
neowidth = DisplayRect->w;
if(((double)DisplayRect->h / MDFNGameInfo->nominal_height) > 0.75 && ((double)DisplayRect->h / MDFNGameInfo->nominal_height) < 1.25)
neoheight = DisplayRect->h;
}
}
memcpy(header, header_magic, 8);
MDFN_en64lsb(header + 8, time(NULL));
MDFN_en32lsb(header + 16, MEDNAFEN_VERSION_NUMERIC);
MDFN_en32lsb(header + 24, neowidth);
MDFN_en32lsb(header + 28, neoheight);
start_pos = st->tell();
st->write(header, 32);
if(surface && DisplayRect && LineWidths)
{
//
// TODO: Make work with 8bpp and 16bpp.
//
MDFN_Surface dest_surface(NULL, neowidth, neoheight, neowidth, surface->format);
MDFN_Rect dest_rect;
dest_rect.x = 0;
dest_rect.y = 0;
dest_rect.w = neowidth;
dest_rect.h = neoheight;
MDFN_ResizeSurface(surface, DisplayRect, LineWidths, &dest_surface, &dest_rect);
{
uint32* previewbuffer = dest_surface.pixels;
uint8* previewbuffer8 = (uint8*)previewbuffer;
for(int32 a = 0; a < neowidth * neoheight; a++)
{
int nr, ng, nb;
surface->DecodeColor(previewbuffer[a], nr, ng, nb);
previewbuffer8[0] = nr;
previewbuffer8[1] = ng;
previewbuffer8[2] = nb;
previewbuffer8 += 3;
}
}
st->write((uint8*)dest_surface.pixels, 3 * neowidth * neoheight);
}
MDFN_StateAction(&sm, 0, data_only);
sm.ThrowDeferred();
{
int64 end_pos = st->tell();
uint32 pv = (end_pos - start_pos) & 0x7FFFFFFF;
#ifdef MSB_FIRST
pv |= 0x80000000;
#endif
st->seek(start_pos + 16 + 4, SEEK_SET);
st->put_LE<uint32>(pv);
st->seek(end_pos, SEEK_SET); // Seek to just beyond end of save state before returning.
}
}
}
int MDFNSS_SaveSM(StateMem *st, int wantpreview_and_ts, int data_only, const MDFN_Surface *surface, const MDFN_Rect *DisplayRect, const MDFN_Rect *LineWidths)
{
static const char *header_magic = "MDFNSVST";
uint8 header[32];
int neowidth = 0, neoheight = 0;
memset(header, 0, sizeof(header));
if(wantpreview_and_ts)
{
bool is_multires = FALSE;
// We'll want to use the nominal width if the source rectangle is > 25% off on either axis, or the source image has
// multiple horizontal resolutions.
neowidth = MDFNGameInfo->nominal_width;
neoheight = MDFNGameInfo->nominal_height;
if(LineWidths[0].w != ~0)
{
uint32 first_w = LineWidths[DisplayRect->y].w;
for(int y = 0; y < DisplayRect->h; y++)
if(LineWidths[DisplayRect->y + y].w != first_w)
{
puts("Multires!");
is_multires = TRUE;
}
}
if(!is_multires)
{
if(((double)DisplayRect->w / MDFNGameInfo->nominal_width) > 0.75 && ((double)DisplayRect->w / MDFNGameInfo->nominal_width) < 1.25)
neowidth = DisplayRect->w;
if(((double)DisplayRect->h / MDFNGameInfo->nominal_height) > 0.75 && ((double)DisplayRect->h / MDFNGameInfo->nominal_height) < 1.25)
neoheight = DisplayRect->h;
}
}
if(!data_only)
{
memcpy(header, header_magic, 8);
if(wantpreview_and_ts)
MDFN_en64lsb(header + 8, time(NULL));
MDFN_en32lsb(header + 16, MEDNAFEN_VERSION_NUMERIC);
MDFN_en32lsb(header + 24, neowidth);
MDFN_en32lsb(header + 28, neoheight);
smem_write(st, header, 32);
}
if(wantpreview_and_ts)
{
uint8 *previewbuffer = (uint8 *)malloc(4 * neowidth * neoheight);
MDFN_Surface *dest_surface = new MDFN_Surface((uint32 *)previewbuffer, neowidth, neoheight, neowidth, surface->format);
MDFN_Rect dest_rect;
dest_rect.x = 0;
dest_rect.y = 0;
dest_rect.w = neowidth;
dest_rect.h = neoheight;
MDFN_ResizeSurface(surface, DisplayRect, (LineWidths[0].w != ~0) ? LineWidths : NULL, dest_surface, &dest_rect);
{
uint32 a, b = 0;
for(a = 0; a < neowidth * neoheight * 4; a+=4)
{
uint32 c = *(uint32 *)&previewbuffer[a];
int nr, ng, nb;
surface->DecodeColor(c, nr, ng, nb);
previewbuffer[b + 0] = nr;
previewbuffer[b + 1] = ng;
previewbuffer[b + 2] = nb;
b += 3;
}
}
smem_write(st, previewbuffer, 3 * neowidth * neoheight);
free(previewbuffer);
delete dest_surface;
}
// State rewinding code path hack, FIXME
if(data_only)
{
if(!MDFN_RawInputStateAction(st, 0, data_only))
return(0);
}
if(!MDFNGameInfo->StateAction(st, 0, data_only))
return(0);
if(!data_only)
{
uint32 sizy = smem_tell(st);
smem_seek(st, 16 + 4, SEEK_SET);
smem_write32le(st, sizy);
}
return(1);
}
