09-hdr: Fixed texture creation.

examples/09-hdr/hdr.cpp

@@ -207,7 +207,7 @@ public:
 		m_lumBgra8 = 0;
 		if ( (BGFX_CAPS_TEXTURE_BLIT|BGFX_CAPS_TEXTURE_READ_BACK) == (bgfx::getCaps()->supported & (BGFX_CAPS_TEXTURE_BLIT|BGFX_CAPS_TEXTURE_READ_BACK) ) )
 		{
-			m_rb = bgfx::createTexture2D(1, 1, false, 1, bgfx::TextureFormat::BGRA8, BGFX_TEXTURE_READ_BACK);
+			m_rb = bgfx::createTexture2D(1, 1, false, 1, bgfx::TextureFormat::BGRA8, BGFX_TEXTURE_BLIT_DST|BGFX_TEXTURE_READ_BACK);
 		}
 		else
 		{