Added mutexes to threadlib and changed existing code to use those.

git-svn-id: svn://svn.code.sf.net/p/sc2/code/trunk@53 8092fc87-c524-0410-9efc-e669fe64eaf9
2002-09-20 23:26:06 +00:00
parent 5bf3ca6cd0
commit 95372702ab
6 changed files with 63 additions and 23 deletions
@@ -39,7 +39,7 @@ blt (PRECT pClipRect, PRIMITIVEPTR PrimPtr)

 	img = (TFB_Image *) ((BYTE *) SrcFramePtr + SrcFramePtr->DataOffs);
 	
-	SDL_mutexP (img->mutex);
+	LockMutex (img->mutex);

 	if (TYPE_GET (_CurFramePtr->TypeIndexAndFlags) == SCREEN_DRAWABLE)
 	{
@@ -172,7 +172,7 @@ blt (PRECT pClipRect, PRIMITIVEPTR PrimPtr)
 		dst_img = ((TFB_Image *) ((BYTE *) _CurFramePtr +
 			_CurFramePtr->DataOffs));
 		
-		SDL_mutexP (dst_img->mutex);
+		LockMutex (dst_img->mutex);

 		SDL_SrcRect.x = (short) img->NormalImg->clip_rect.x;
 		SDL_SrcRect.y = (short) img->NormalImg->clip_rect.y;
@@ -191,10 +191,10 @@ blt (PRECT pClipRect, PRIMITIVEPTR PrimPtr)
 			&SDL_DstRect
 		);
 		
-		SDL_mutexV (dst_img->mutex);
+		UnlockMutex (dst_img->mutex);
 	}

-	SDL_mutexV (img->mutex);
+	UnlockMutex (img->mutex);
 }

 static void
@@ -244,7 +244,7 @@ fillrect_blt (PRECT pClipRect, PRIMITIVEPTR PrimPtr)
 		img = ((TFB_Image *) ((BYTE *) _CurFramePtr +
 				_CurFramePtr->DataOffs));

-		SDL_mutexP (img->mutex);
+		LockMutex (img->mutex);

 		SDLRect.x = (short) (pClipRect->corner.x -
 				GetFrameHotX (_CurFramePtr));
@@ -255,7 +255,7 @@ fillrect_blt (PRECT pClipRect, PRIMITIVEPTR PrimPtr)

 		SDL_FillRect (img->NormalImg, &SDLRect, SDL_MapRGB (img->NormalImg->format, r, g, b));

-		SDL_mutexV (img->mutex);
+		UnlockMutex (img->mutex);
 	}
 }

@@ -132,7 +132,7 @@ TFB_LoadImage (SDL_Surface *img)
 	TFB_Image *myImage;

 	myImage = (TFB_Image*) HMalloc (sizeof (TFB_Image));
-	myImage->mutex = SDL_CreateMutex();
+	myImage->mutex = CreateMutex();
 	myImage->ScaledImg = NULL;
 	myImage->Palette = NULL;
 	
@@ -373,7 +373,7 @@ TFB_FlushGraphics () // Only call from main thread!!

 		DC_image = (TFB_Image*) DC.image;
 		if (DC_image)
-			SDL_mutexP (DC_image->mutex);
+			LockMutex (DC_image->mutex);
 		
 		switch (DC.Type)
 		{
@@ -522,8 +522,8 @@ TFB_FlushGraphics () // Only call from main thread!!
 			if (DC_image->Palette)
 				HFree (DC_image->Palette);

-			SDL_mutexV (DC_image->mutex);
-			SDL_DestroyMutex (DC_image->mutex);
+			UnlockMutex (DC_image->mutex);
+			DestroyMutex (DC_image->mutex);
 			
 			HFree (DC_image);
 			DC_image = 0;
@@ -531,7 +531,7 @@ TFB_FlushGraphics () // Only call from main thread!!
 		}
 		
 		if (DC_image)
-			SDL_mutexV (DC_image->mutex);
+			UnlockMutex (DC_image->mutex);
 	}
 	
 	if (livelock_deterrence)
@@ -20,13 +20,13 @@
 #define SDL_COMMON_H

 #include "SDL.h"
-#include "SDL_thread.h"
 #include "SDL_image.h"

 #include "libs/graphics/gfxintrn.h"
 #include "libs/input/inpintrn.h"
 #include "libs/graphics/gfx_common.h"
 #include "libs/input/sdl/input.h"
+#include "libs/threadlib.h"

 extern SDL_Surface *SDL_Video;
 extern SDL_Surface *SDL_Screen;
@@ -45,9 +45,9 @@ typedef struct tfb_image
 	SDL_Surface *ScaledImg;
 	SDL_Color *Palette;
 	int scale;
-	SDL_mutex *mutex;
+	Mutex mutex;
 	UBYTE pad[sizeof(TFB_ImageStruct)-sizeof(SDL_Surface*)-sizeof(SDL_Surface*)-
-		sizeof(SDL_Color*)-sizeof(int)-sizeof(SDL_mutex*)];
+		sizeof(SDL_Color*)-sizeof(int)-sizeof(Mutex)];
 } TFB_Image;

 TFB_Image *TFB_LoadImage (SDL_Surface *img);
@@ -53,6 +53,10 @@
 #	endif
 #endif

+extern void InitThreadSystem (void);
+extern void UnInitThreadSystem (void);
+
+
 typedef int (*ThreadFunction) (void *);

 typedef struct Thread {
@@ -68,11 +72,6 @@ typedef struct Thread {
 #endif
 } *Thread;

-typedef void *Semaphore;
-
-extern void InitThreadSystem (void);
-extern void UnInitThreadSystem (void);
-
 #ifdef THREAD_NAMES
 extern Thread CreateThreadAux (ThreadFunction func, void *data,
 		SDWORD stackSize, const char *name);
@@ -90,6 +89,7 @@ extern void SleepThreadUntil (TimeCount wakeTime);
 extern void TaskSwitch (void);
 extern void WaitThread (Thread thread, int *status);

+typedef void *Semaphore;
 extern Semaphore CreateSemaphore (DWORD initial);
 extern void DestroySemaphore (Semaphore sem);
 extern int SetSemaphore (Semaphore sem);
@@ -100,5 +100,12 @@ extern void ClearSemaphore (Semaphore sem);
 extern void PrintThreadsStats (void);
 #endif  /* PROFILE_THREADS */

+typedef void *Mutex;
+extern Mutex CreateMutex (void);
+extern void DestroyMutex (Mutex sem);
+extern int LockMutex (Mutex sem);
+extern void UnlockMutex (Mutex sem);
+
+
 #endif  /* _THREADLIB_H */

@@ -67,5 +67,15 @@ extern int SDLWrapper_TimeoutSetSemaphore (Semaphore sem,
 #define NativeClearSemaphore(sem) \
 		SDL_SemPost ((sem))

+typedef SDL_mutex *NativeMutex;
+#define NativeCreateMutex() \
+		SDL_CreateMutex ()
+#define NativeDestroyMutex(mutex) \
+		SDL_DestroyMutex ((mutex))
+#define NativeLockMutex(mutex) \
+		SDL_mutexP ((mutex))
+#define NativeUnlockMutex(mutex) \
+		SDL_mutexV ((mutex))
+
 #endif  /* _SDLTHREAD_H */

@@ -222,10 +222,11 @@ CreateThreadAux (ThreadFunction func, void *data, SDWORD stackSize
 /* 17 Sep: Added a TFB_BatchReset call.  If a thread is killed while
 *         batching stuff, we don't want this to freeze the game.
 *         Better safe than sorry!  --Michael
+ *         TEMPORARY (TODO: handle decently)
 */
 void
 KillThread (Thread thread)
-{	
+{
 	TFB_BatchReset ();
 	NativeKillThread (thread->native);
 #ifdef DEBUG_THREADS
@@ -306,9 +307,7 @@ DestroySemaphore (Semaphore sem)
 int
 SetSemaphore (Semaphore sem)
 {
-	int result;
-	result = NativeSetSemaphore ((NativeSemaphore) sem);
-	return result;
+	return NativeSetSemaphore ((NativeSemaphore) sem);
 }

 int
@@ -330,4 +329,28 @@ ClearSemaphore (Semaphore sem)
 	NativeClearSemaphore ((NativeSemaphore) sem);
 }

+Mutex
+CreateMutex ()
+{
+	return (Mutex) NativeCreateMutex ();
+}
+
+void
+DestroyMutex (Mutex sem)
+{
+	NativeDestroyMutex ((NativeMutex) sem);
+}
+
+int
+LockMutex (Mutex sem)
+{
+	return NativeLockMutex ((NativeMutex) sem);
+}
+
+void
+UnlockMutex (Mutex sem)
+{
+	NativeUnlockMutex ((NativeMutex) sem);
+}
+