From 5fd83e7a414bc93609d8b5aa12a30bbf8b5169ec Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=91=D1=80=D0=B0=D0=BD=D0=B8=D0=BC=D0=B8=D1=80=20=D0=9A?=
 =?UTF-8?q?=D0=B0=D1=80=D0=B0=D1=9F=D0=B8=D1=9B?=
 <branimirkaradzic@gmail.com>
Date: Mon, 1 Nov 2021 18:27:20 -0700
Subject: [PATCH] Added BGFX_TEXTURE_BLIT_DST validation.

---
 src/bgfx.cpp | 6 ++++++
 src/bgfx_p.h | 5 +++++
 2 files changed, 11 insertions(+)

diff --git a/src/bgfx.cpp b/src/bgfx.cpp
index cca6abad6..0dd2dea15 100644
--- a/src/bgfx.cpp
+++ b/src/bgfx.cpp
@@ -3965,6 +3965,12 @@ namespace bgfx
 		const TextureRef& src = s_ctx->m_textureRef[_src.idx];
 		const TextureRef& dst = s_ctx->m_textureRef[_dst.idx];
 
+		BX_ASSERT(dst.isBlitDst()
+			, "Blit destination texture (handle %d, '%S') is not created with `BGFX_TEXTURE_BLIT_DST` flag."
+			, _dst.idx
+			, &dst.m_name
+			);
+
 		BX_ASSERT(src.m_format == dst.m_format
 			, "Texture format must match (src %s, dst %s)."
 			, bimg::getName(bimg::TextureFormat::Enum(src.m_format) )
diff --git a/src/bgfx_p.h b/src/bgfx_p.h
index 62fe83366..218513d0a 100644
--- a/src/bgfx_p.h
+++ b/src/bgfx_p.h
@@ -1886,6 +1886,11 @@ namespace bgfx
 			return 0 != (m_flags & BGFX_TEXTURE_READ_BACK);
 		}
 
+		bool isBlitDst() const
+		{
+			return 0 != (m_flags & BGFX_TEXTURE_BLIT_DST);
+		}
+
 		bool isCubeMap() const
 		{
 			return m_cubeMap;