Erwan

- Fix issue 97. Please review. How about performance ?

projects/mtg/include/WResourceManager.h

@@ -12,7 +12,7 @@
 #define PSI_CACHE_SIZE 500000  // Size in bytes of the cahed particles
 #define TEXTURES_CACHE_MINSIZE 2000000  // Minimum size of the cache on the PSP. The program should complain if the cache ever gets smaller than this
 #define OPERATIONAL_SIZE 5000000 // Size required by Wagic for operational stuff. 3MB is not enough. The cache will usually try to take (Total Ram - Operational size)
-
+#define MIN_LINEAR_RAM 1000000
 //Hard Limits.
 #define MAX_CACHE_OBJECTS 300
 #define MAX_CACHE_ATTEMPTS 10

projects/mtg/src/GameStateShop.cpp

@@ -30,7 +30,7 @@ void GameStateShop::Start()
 
   mStage = STAGE_SHOP_SHOP;
 
-  bgTexture = resources.RetrieveTexture("shop.jpg");
+  bgTexture = resources.RetrieveTexture("shop.jpg",RETRIEVE_LOCK);
   
   //alternateRender doesn't lock, so lock our thumbnails for hgeDistort.
   altThumb[0] = resources.RetrieveTexture("artifact_thumb.jpg", RETRIEVE_LOCK);
@@ -125,7 +125,6 @@ void GameStateShop::load(){
 void GameStateShop::End()
 {
   JRenderer::GetInstance()->EnableVSync(false);
-  resources.Release(mBg);
   resources.Release(bgTexture);
 
   //Release alternate thumbnails.

projects/mtg/src/WCachedResource.cpp

@@ -287,6 +287,7 @@ bool WCachedTexture::Attempt(string filename, int submode, int & error){
   
   //Failure.
   if(!texture){
+    error = CACHE_ERROR_BAD;
     if(!fileExists(realname.c_str()))
       error = CACHE_ERROR_404;
     return false;

projects/mtg/src/WResourceManager.cpp

@@ -971,53 +971,18 @@ cacheItem* WCache<cacheItem, cacheActual>::AttemptNew(string filename, int submo
 
   mError = CACHE_ERROR_NONE;
 
-  for(int attempts = 0; attempts < MAX_CACHE_ATTEMPTS;attempts++)
-  {
-    //We use try/catch so any memory alloc'd in Attempt isn't lost.
-    try{
-      //If we don't get a good item, remove oldest cache and continue trying.
-      if(!item->Attempt(filename,submode,mError) || !item->isGood()) {
-        //No such file. Fail on first try.
-        if(mError == CACHE_ERROR_404){
-          SAFE_DELETE(item); 
-          return NULL;
-        }
-        throw std::bad_alloc();
-      }
+  if(!item->Attempt(filename,submode,mError) || !item->isGood()) {
+    //No such file. Fail
+    if(mError == CACHE_ERROR_404){
+      SAFE_DELETE(item); 
+      return NULL;
     }
-    catch(std::bad_alloc){
-      RemoveOldest();
-    }
-
-    //Succeeded
-    if(item->isGood())
-      break;
-  }
-
-  //Still no result, so clear local cache, then try again.
-  if(!item->isGood()){
-    ClearUnlocked();
-    try{
-      if(!item->Attempt(filename,submode,mError) || !item->isGood())
-        throw std::bad_alloc();
-    }
-    catch(std::bad_alloc){
-      //Failed, so clear every cache we've got in prep for the next try.
-      resources.ClearUnlocked();
-    }
-    if(!item->isGood()){
-      try{
-        if(!item->Attempt(filename,submode,mError) || !item->isGood())
-          throw std::bad_alloc();
-      }
-      catch(std::bad_alloc){
-        //Complete failure. Trash this object and return NULL.
-        if(!item->isGood()){
-          SAFE_DELETE(item);
-          mError = CACHE_ERROR_BAD;
-          return NULL;
-        }
-      }
+    //Probably not enough memory: cleanup and try again
+    Cleanup();
+    if(!item->Attempt(filename,submode,mError) || !item->isGood()) {
+      SAFE_DELETE(item);
+      mError = CACHE_ERROR_BAD;
+      return NULL;
     }
   }
   
@@ -1214,7 +1179,12 @@ bool WCache<cacheItem, cacheActual>::Cleanup(){
     RemoveMiss();
   }
 
-  while (cacheItems > MAX_CACHE_OBJECTS || cacheItems > maxCached || cacheSize > maxCacheSize ){
+  while (cacheItems > MAX_CACHE_OBJECTS || cacheItems > maxCached || cacheSize > maxCacheSize
+#if defined WIN32 || defined LINUX
+#else
+  || ramAvailableLineareMax() < MIN_LINEAR_RAM   
+#endif
+    ){
     if (!RemoveOldest()) 
       return false;
   }