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-rw-r--r--engines/teenagent/detection.cpp77
1 files changed, 57 insertions, 20 deletions
diff --git a/engines/teenagent/detection.cpp b/engines/teenagent/detection.cpp
index 9cc75e91b2..0dc86d57db 100644
--- a/engines/teenagent/detection.cpp
+++ b/engines/teenagent/detection.cpp
@@ -25,6 +25,7 @@
#include "common/system.h"
#include "common/savefile.h"
#include "common/algorithm.h"
+#include "common/noncopyable.h"
#include "base/plugins.h"
@@ -76,6 +77,45 @@ static const ADParams detectionParams = {
#define MAX_SAVES 20
+//add it to ptr.h?
+template<typename T>
+class AutoPtr {
+protected:
+ mutable T *object;
+
+public:
+ typedef T ValueType;
+ typedef T *PointerType;
+
+ inline AutoPtr(T *o = NULL): object(o) {}
+ inline AutoPtr(const AutoPtr& other): object(other.release()) {}
+ inline AutoPtr& operator=(const AutoPtr& other) {
+ delete object;
+ object = other.release();
+ return *this;
+ }
+
+ inline T *operator->() const { return object; }
+ inline operator T*() const { return object; }
+ inline operator bool() const { return object != NULL; }
+
+ inline ~AutoPtr() {
+ delete object;
+ }
+
+ inline void reset(T * o) {
+ delete object;
+ object = o;
+ }
+
+ inline T *release() const {
+ T *r = object;
+ object = NULL;
+ return r;
+ }
+};
+
+
class TeenAgentMetaEngine : public AdvancedMetaEngine {
public:
TeenAgentMetaEngine() : AdvancedMetaEngine(detectionParams) {
@@ -129,17 +169,15 @@ public:
int slot;
const char *ext = strrchr(file->c_str(), '.');
if (ext && (slot = atoi(ext + 1)) >= 0 && slot < MAX_SAVES) {
- Common::InSaveFile *in = g_system->getSavefileManager()->openForLoading(*file);
- if (in) {
- char buf[25];
- in->seek(0);
- in->read(buf, 24);
- buf[24] = 0;
- Common::String description = buf;
- saveList.push_back(SaveStateDescriptor(slot, description));
-
- delete in;
- }
+ AutoPtr<Common::InSaveFile> in = g_system->getSavefileManager()->openForLoading(*file);
+ if (!in)
+ continue;
+
+ char buf[25];
+ in->seek(0);
+ in->read(buf, 24);
+ buf[24] = 0;
+ saveList.push_back(SaveStateDescriptor(slot, buf));
}
}
return saveList;
@@ -156,8 +194,8 @@ public:
virtual SaveStateDescriptor querySaveMetaInfos(const char *target, int slot) const {
Common::String filename = generateGameStateFileName(target, slot);
- Common::InSaveFile *in = g_system->getSavefileManager()->openForLoading(filename);
- if (in == NULL)
+ AutoPtr<Common::InSaveFile> in = g_system->getSavefileManager()->openForLoading(filename);
+ if (!in)
return SaveStateDescriptor();
char buf[25];
@@ -171,14 +209,13 @@ public:
if (!Graphics::checkThumbnailHeader(*in))
return SaveStateDescriptor(slot, desc);
- Graphics::Surface *thumb = new Graphics::Surface;
- if (!Graphics::loadThumbnail(*in, *thumb)) {
- delete thumb;
- return SaveStateDescriptor(slot, desc);
- }
-
SaveStateDescriptor ssd(slot, desc);
- ssd.setThumbnail(thumb);
+ ssd.setDeletableFlag(true);
+
+ //checking for the thumbnail
+ AutoPtr<Graphics::Surface> thumb = new Graphics::Surface;
+ if (Graphics::loadThumbnail(*in, *thumb))
+ ssd.setThumbnail(thumb.release());
return ssd;
}