From a4bf237b05b39f97deb603bdce3a9d94722d500f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Branimir=20Karad=C5=BEi=C4=87?= <branimirkaradzic@gmail.com>
Date: Thu, 26 Mar 2015 15:01:09 -0700
Subject: [PATCH] Fixed handle check.

---
 src/bgfx_p.h | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/bgfx_p.h b/src/bgfx_p.h
index b17b7b312..fd88a9004 100644
--- a/src/bgfx_p.h
+++ b/src/bgfx_p.h
@@ -29,6 +29,7 @@
 #include <string.h>
 #include <alloca.h>
 
+// Check handle, cannot be bgfx::invalidHandle and must be valid.
 #define BGFX_CHECK_HANDLE(_desc, _handleAlloc, _handle) \
 			BX_CHECK(isValid(_handle) \
 				&& _handleAlloc.isValid(_handle.idx) \
@@ -36,7 +37,17 @@
 				, _desc \
 				, _handle.idx \
 				, _handleAlloc.getMaxHandles() \
-				);
+				)
+
+// Check handle, it's ok to be bgfx::invalidHandle or must be valid.
+#define BGFX_CHECK_HANDLE_INVALID_OK(_desc, _handleAlloc, _handle) \
+			BX_CHECK(!isValid(_handle) \
+				|| _handleAlloc.isValid(_handle.idx) \
+				, "Invalid handle. %s handle: %d (max %d)" \
+				, _desc \
+				, _handle.idx \
+				, _handleAlloc.getMaxHandles() \
+				)
 
 namespace bgfx
 {
@@ -3091,7 +3102,7 @@ namespace bgfx
 
 		BGFX_API_FUNC(void setViewFrameBuffer(uint8_t _id, FrameBufferHandle _handle) )
 		{
-			BGFX_CHECK_HANDLE("setViewFrameBuffer", m_frameBufferHandle, _handle);
+			BGFX_CHECK_HANDLE_INVALID_OK("setViewFrameBuffer", m_frameBufferHandle, _handle);
 			m_fb[_id] = _handle;
 		}