Initial import

bitmap/bumpmap.cpp

@@ -0,0 +1,124 @@
+#include <stdlib.h>
+#include <string.h>
+#include "bumpmap.h"
+#include "pstypes.h"
+#include "pserror.h"
+#include "mono.h"
+#include "mem.h"
+
+int Num_of_bumpmaps=0;
+static ushort Free_bumpmap_list[MAX_BUMPMAPS];
+
+bms_bumpmap GameBumpmaps[MAX_BUMPMAPS];
+int Bumpmap_mem_used=0;
+
+// Sets all the bumpmaps to unused
+void bump_InitBumpmaps()
+{
+	int i;
+
+	for (i=0;i<MAX_BUMPMAPS;i++)
+	{
+		GameBumpmaps[i].flags=0;
+		GameBumpmaps[i].data=NULL;
+		GameBumpmaps[i].cache_slot=-1;
+		Free_bumpmap_list[i]=i;
+	}
+
+	atexit (bump_ShutdownBumpmaps);
+
+}
+void bump_ShutdownBumpmaps (void)
+{
+	int i;
+
+	mprintf ((0,"Freeing all bumpmap memory.\n"));
+
+	for (i=0;i<MAX_BUMPMAPS;i++)
+	{
+		while (GameBumpmaps[i].flags & BUMPF_USED)
+			bump_FreeBumpmap (i);		
+	}
+	
+}
+
+// Allocs a bumpmap of w*h size
+// Returns bumpmap handle if successful, -1 if otherwise
+
+int bump_AllocBumpmap (int w,int h)
+{
+	int n;	//,i;
+
+	if (Num_of_bumpmaps==MAX_BUMPMAPS)
+		Int3();	// Ran out of bumpmaps!
+	
+	n=Free_bumpmap_list[Num_of_bumpmaps++];
+	ASSERT (!(GameBumpmaps[n].flags & BUMPF_USED));
+
+	// If no go on the malloc, bail out with -1
+	
+	memset (&GameBumpmaps[n],0,sizeof(bms_bumpmap));
+
+	GameBumpmaps[n].data=(ushort *)mem_malloc (w*h*2);
+	if (!GameBumpmaps[n].data)
+	{
+		mprintf ((0,"NOT ENOUGHT MEMORY FOR BUMPMAP!\n"));
+		Int3();
+		return BAD_BUMP_INDEX;
+	}
+		
+	GameBumpmaps[n].cache_slot=-1;
+	GameBumpmaps[n].flags=BUMPF_USED|BUMPF_CHANGED;
+	GameBumpmaps[n].width=w;
+	GameBumpmaps[n].height=h;
+
+	Bumpmap_mem_used+=(w*h*2);
+	
+	return n;
+}
+
+// Given a handle, frees the bumpmap memory and flags this bumpmap as unused
+void bump_FreeBumpmap (int handle)
+{ 
+	ASSERT (GameBumpmaps[handle].flags & BUMPF_USED);
+
+	if (GameBumpmaps[handle].data!=NULL)
+		mem_free (GameBumpmaps[handle].data);
+
+	Bumpmap_mem_used-=(GameBumpmaps[handle].width*GameBumpmaps[handle].height*2);
+			
+	GameBumpmaps[handle].data=NULL;
+	GameBumpmaps[handle].flags &=~BUMPF_USED;
+		
+	Free_bumpmap_list[--Num_of_bumpmaps]=handle;
+}
+
+// returns a bumpmaps data else NULL if something is wrong
+ushort *bump_data (int handle)
+{
+	ushort *d;
+
+	if (!(GameBumpmaps[handle].flags & BUMPF_USED))
+	{
+		Int3();
+		return NULL;
+	}
+		
+	d=GameBumpmaps[handle].data;
+
+	return (d);
+}
+
+// returns width of bumpmap
+ubyte bump_w (int handle)
+{
+	ASSERT (GameBumpmaps[handle].flags & BUMPF_USED);
+	return GameBumpmaps[handle].width;
+}
+
+// returns height of bumpmap
+ubyte bump_h (int handle)
+{
+	ASSERT (GameBumpmaps[handle].flags & BUMPF_USED);
+	return GameBumpmaps[handle].height;
+}