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- moved savestate compression/decompression out of emulator core (continuing)

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ekeeke31 2012-01-15 19:53:25 +00:00
parent d66d747d98
commit a77ee50ecd
1 changed files with 37 additions and 8 deletions
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45
source/gx/fileio/file_slot.c
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@ -235,7 +235,7 @@ int slot_delete(int slot, int device)
int slot_load(int slot, int device) int slot_load(int slot, int device)
{ {
char filename[MAXPATHLEN]; char filename[MAXPATHLEN];
int filesize, done = 0; unsigned long filesize, done = 0;
int offset = 0; int offset = 0;
u8 *savebuffer; u8 *savebuffer;
@ -345,7 +345,9 @@ int slot_load(int slot, int device)
/* Retrieve file size */ /* Retrieve file size */
filesize = CardFile.len; filesize = CardFile.len;
if (filesize % SectorSize) if (filesize % SectorSize)
filesize = ((filesize / SectorSize) + 1) * SectorSize; {
filesize = ((filesize / SectorSize) + 1) * SectorSize;
}
/* Allocate buffer */ /* Allocate buffer */
savebuffer = (u8 *)memalign(32,filesize); savebuffer = (u8 *)memalign(32,filesize);
@ -372,13 +374,28 @@ int slot_load(int slot, int device)
if (slot > 0) if (slot > 0)
{ {
/* Load state */ /* Uncompress state buffer */
if (state_load(&savebuffer[offset]) <= 0) u8 *state = (u8 *)memalign(32, STATE_SIZE);
if (!state)
{ {
free(savebuffer);
GUI_WaitPrompt("Error","Unable to allocate memory !");
return 0;
}
done = STATE_SIZE;
memcpy(&filesize, savebuffer + offset, 4);
uncompress ((Bytef *)state, &done, (Bytef *)(savebuffer + offset + 4), filesize);
/* Load state */
if (state_load(state) <= 0)
{
free(state);
free(savebuffer); free(savebuffer);
GUI_WaitPrompt("Error","Invalid state file !"); GUI_WaitPrompt("Error","Invalid state file !");
return 0; return 0;
} }
free(state);
} }
else else
{ {
@ -396,22 +413,32 @@ int slot_load(int slot, int device)
int slot_save(int slot, int device) int slot_save(int slot, int device)
{ {
char filename[MAXPATHLEN]; char filename[MAXPATHLEN];
int filesize, done = 0; unsigned long filesize, done = 0;
int offset = device ? 2112 : 0; int offset = device ? 2112 : 0;
u8 *savebuffer; u8 *savebuffer;
if (slot > 0) if (slot > 0)
{ {
/* allocate buffer */ /* allocate buffers */
savebuffer = (u8 *)memalign(32,STATE_SIZE); savebuffer = (u8 *)memalign(32,STATE_SIZE);
if (!savebuffer) u8 *state = (u8 *)memalign(32,STATE_SIZE);
if (!savebuffer || !state)
{ {
GUI_WaitPrompt("Error","Unable to allocate memory !"); GUI_WaitPrompt("Error","Unable to allocate memory !");
return 0; return 0;
} }
/* save state */
GUI_MsgBoxOpen("Information","Saving State ...",1); GUI_MsgBoxOpen("Information","Saving State ...",1);
filesize = state_save(&savebuffer[offset]); done = state_save(state);
/* compress state file */
filesize = STATE_SIZE;
compress2 ((Bytef *)(savebuffer + offset + 4), &filesize, (Bytef *)state, done, 9);
memcpy(savebuffer + offset, &filesize, 4);
filesize += 4;
done = 0;
free(state);
} }
else else
{ {
@ -510,7 +537,9 @@ int slot_save(int slot, int device)
/* Adjust file size */ /* Adjust file size */
filesize += 2112; filesize += 2112;
if (filesize % SectorSize) if (filesize % SectorSize)
{
filesize = ((filesize / SectorSize) + 1) * SectorSize; filesize = ((filesize / SectorSize) + 1) * SectorSize;
}
/* Check if file already exists */ /* Check if file already exists */
card_file CardFile; card_file CardFile;