From 457c045ebe02d17dd4f71fd02d29ca7042897d3f Mon Sep 17 00:00:00 2001
From: Kelvin Sherlock <ksherlock@gmail.com>
Date: Sun, 30 Jun 2013 13:08:26 -0400
Subject: [PATCH] RM::GetResourceSizeOnDisk

---
 toolbox/rm.cpp      | 27 +++++++++++++++++++++++++++
 toolbox/rm.h        |  1 +
 toolbox/toolbox.cpp |  5 ++++-
 3 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/toolbox/rm.cpp b/toolbox/rm.cpp
index eff49ce..18da9bb 100644
--- a/toolbox/rm.cpp
+++ b/toolbox/rm.cpp
@@ -755,6 +755,33 @@ namespace RM
 		return SetResError(::ResError());
 	}
 
+	uint16_t GetResourceSizeOnDisk(uint16_t trap)
+	{
+		// FUNCTION GetResourceSizeOnDisk (theResource: Handle): LongInt;
+
+		uint32_t sp;
+		uint32_t theResource;
+
+		sp = StackFrame<4>(theResource);
+
+		Log("%04x GetResourceSizeOnDisk(%08x)\n", trap, theResource);
+
+
+		auto iter = rhandle_map.find(theResource);
+		if (iter == rhandle_map.end())
+		{
+			ToolReturn<4>(sp, (uint32_t)0);
+			return SetResError(MacOS::resNotFound);
+		}
+
+		Handle nativeHandle = iter->second;
+		uint32_t size = ::GetResourceSizeOnDisk(nativeHandle);
+
+		ToolReturn<4>(sp, size);
+		return SetResError(::ResError());
+	}
+
+
 
 
 	// todo -- move since it's not RM related.
diff --git a/toolbox/rm.h b/toolbox/rm.h
index c048045..ad62aab 100644
--- a/toolbox/rm.h
+++ b/toolbox/rm.h
@@ -47,6 +47,7 @@ namespace RM
 
 	uint16_t RemoveResource(uint16_t trap);
 
+	uint16_t GetResourceSizeOnDisk(uint16_t trap);
 }
 
 
diff --git a/toolbox/toolbox.cpp b/toolbox/toolbox.cpp
index b8ed785..d1306b2 100644
--- a/toolbox/toolbox.cpp
+++ b/toolbox/toolbox.cpp
@@ -335,7 +335,10 @@ namespace ToolBox {
 				d0 = RM::ReleaseResource(trap);
 				break;
 
-
+			case 0xa9a5:
+				d0 = RM::GetResourceSizeOnDisk(trap);
+				break;
+				
 			case 0xa9a6:
 				d0 = RM::GetResAttrs(trap);
 				break;