Moved HMD tracking into flip. Removed unnecessary frame data when using single-threaded renderer.

src/bgfx.cpp

@@ -934,14 +934,13 @@ namespace bgfx
 
 		m_exit   = false;
 		m_frames = 0;
-		m_render = &m_frame[0];
-		m_submit = &m_frame[1];
 		m_debug  = BGFX_DEBUG_NONE;
 
 		m_submit->create();
-		m_render->create();
 
 #if BGFX_CONFIG_MULTITHREADED
+		m_render->create();
+
 		if (s_renderFrameCalled)
 		{
 			// When bgfx::renderFrame is called before init render thread
@@ -1029,9 +1028,12 @@ namespace bgfx
 		m_clearQuad.shutdown();
 		frame();
 
-		destroyTransientVertexBuffer(m_submit->m_transientVb);
+		if (BX_ENABLED(BGFX_CONFIG_MULTITHREADED) )
-		destroyTransientIndexBuffer(m_submit->m_transientIb);
+		{
-		frame();
+			destroyTransientVertexBuffer(m_submit->m_transientVb);
+			destroyTransientIndexBuffer(m_submit->m_transientIb);
+			frame();
+		}
 
 		frame(); // If any VertexDecls needs to be destroyed.
 
@@ -1054,10 +1056,11 @@ namespace bgfx
 		{
 			m_thread.shutdown();
 		}
+
+		m_render->destroy();
 #endif // BGFX_CONFIG_MULTITHREADED
 
 		m_submit->destroy();
-		m_render->destroy();
 
 		if (BX_ENABLED(BGFX_CONFIG_DEBUG) )
 		{
@@ -1159,10 +1162,6 @@ namespace bgfx
 
 		// release render thread
 		gameSemPost();
-
-#if !BGFX_CONFIG_MULTITHREADED
-		renderFrame();
-#endif // BGFX_CONFIG_MULTITHREADED
 	}
 
 	void Context::swap()
@@ -1186,9 +1185,12 @@ namespace bgfx
 		}
 		m_submit->finish();
 
-		Frame* temp = m_render;
+		bx::xchg(m_render, m_submit);
-		m_render = m_submit;
+
-		m_submit = temp;
+		if (!BX_ENABLED(BGFX_CONFIG_MULTITHREADED) )
+		{
+			renderFrame();
+		}
 
 		m_frames++;
 		m_submit->start();
@@ -1208,7 +1210,7 @@ namespace bgfx
 		if (m_rendererInitialized
 		&&  !m_flipAfterRender)
 		{
-			m_renderCtx->flip();
+			m_renderCtx->flip(m_render->m_hmd);
 		}
 
 		gameSemWait();
@@ -1225,7 +1227,7 @@ namespace bgfx
 		if (m_rendererInitialized
 		&&  m_flipAfterRender)
 		{
-			m_renderCtx->flip();
+			m_renderCtx->flip(m_render->m_hmd);
 		}
 
 		return m_exit;

src/bgfx_p.h

@@ -1830,7 +1830,7 @@ namespace bgfx
 		virtual ~RendererContextI() = 0;
 		virtual RendererType::Enum getRendererType() const = 0;
 		virtual const char* getRendererName() const = 0;
-		virtual void flip() = 0;
+		virtual void flip(HMD& _hmd) = 0;
 		virtual void createIndexBuffer(IndexBufferHandle _handle, Memory* _mem, uint8_t _flags) = 0;
 		virtual void destroyIndexBuffer(IndexBufferHandle _handle) = 0;
 		virtual void createVertexDecl(VertexDeclHandle _handle, const VertexDecl& _decl) = 0;
@@ -1883,7 +1883,7 @@ namespace bgfx
 	{
 		Context()
 			: m_render(&m_frame[0])
-			, m_submit(&m_frame[1])
+			, m_submit(&m_frame[BGFX_CONFIG_MULTITHREADED ? 1 : 0])
 			, m_numFreeDynamicIndexBufferHandles(0)
 			, m_numFreeDynamicVertexBufferHandles(0)
 			, m_clearColorDirty(0)
@@ -3425,7 +3425,7 @@ namespace bgfx
 		}
 #endif // BGFX_CONFIG_MULTITHREADED
 
-		Frame m_frame[2];
+		Frame m_frame[1+(BGFX_CONFIG_MULTITHREADED ? 1 : 0)];
 		Frame* m_render;
 		Frame* m_submit;
 

src/ovr.cpp

@@ -39,19 +39,6 @@ namespace bgfx
 		{
 			switch (_config->Header.API)
 			{
-#if BGFX_CONFIG_RENDERER_DIRECT3D9
-			case ovrRenderAPI_D3D9:
-				{
-					ovrD3D9ConfigData* data = (ovrD3D9ConfigData*)_config;
-#	if OVR_VERSION > OVR_VERSION_043
-					m_rtSize = data->Header.BackBufferSize;
-#	else
-					m_rtSize = data->Header.RTSize;
-#	endif // OVR_VERSION > OVR_VERSION_043
-				}
-				break;
-#endif // BGFX_CONFIG_RENDERER_DIRECT3D9
-
 #if BGFX_CONFIG_RENDERER_DIRECT3D11
 			case ovrRenderAPI_D3D11:
 				{
@@ -202,7 +189,7 @@ ovrError:
 		m_debug = false;
 	}
 
-	bool OVR::swap()
+	bool OVR::swap(HMD& _hmd)
 	{
 		if (NULL == m_hmd)
 		{
@@ -216,6 +203,8 @@ ovrError:
 			m_warning = !ovrHmd_DismissHSWDisplay(m_hmd);
 		}
 
+		getEyePose(_hmd);
+
 		m_timing = ovrHmd_BeginFrame(m_hmd, 0);
 
 #if OVR_VERSION > OVR_VERSION_042

src/ovr.h

@@ -25,22 +25,9 @@
 #		include <OVR_CAPI.h>
 #	endif // OVR_VERSION < OVR_VERSION_050
 
-#	if BGFX_CONFIG_RENDERER_DIRECT3D9
-#		define OVR_D3D_VERSION 9
-#		if OVR_VERSION < OVR_VERSION_050
-#			include <OVR_D3D.h>
-#		else
-#			include <OVR_CAPI_D3D.h>
-#		endif
-#	endif // BGFX_CONFIG_RENDERER_DIRECT3D9
-
 #	if BGFX_CONFIG_RENDERER_DIRECT3D11
-#		ifdef OVR_CAPI_D3D_h
-#			undef OVR_CAPI_D3D_h
-#			undef OVR_D3D_VERSION
-#		endif // OVR_CAPI_D3D_h
-#		define OVR_D3D_VERSION 11
 #		if OVR_VERSION < OVR_VERSION_050
+#			define OVR_D3D_VERSION 11
 #			include <OVR_D3D.h>
 #		else
 #			include <OVR_CAPI_D3D.h>
@@ -83,7 +70,7 @@ namespace bgfx
 		bool postReset(void* _nwh, ovrRenderAPIConfig* _config, bool _debug = false);
 		void postReset(const ovrTexture& _texture);
 		void preReset();
-		bool swap();
+		bool swap(HMD& _hmd);
 		void recenter();
 		void getEyePose(HMD& _hmd);
 		void getSize(uint32_t& _width, uint32_t& _height) const
@@ -143,8 +130,9 @@ namespace bgfx
 			return false;
 		}
 
-		bool swap()
+		bool swap(HMD& _hmd)
 		{
+			getEyePose(_hmd);
 			return false;
 		}
 

src/renderer_d3d11.cpp

@@ -1297,7 +1297,7 @@ BX_PRAGMA_DIAGNOSTIC_POP();
 				;
 		}
 
-		void flip() BX_OVERRIDE
+		void flip(HMD& _hmd) BX_OVERRIDE
 		{
 			if (NULL != m_swapChain)
 			{
@@ -1314,7 +1314,7 @@ BX_PRAGMA_DIAGNOSTIC_POP();
 
 				if (SUCCEEDED(hr) )
 				{
-					if (!m_ovr.swap() )
+					if (!m_ovr.swap(_hmd) )
 					{
 						hr = m_swapChain->Present(syncInterval, 0);
 					}
@@ -3205,11 +3205,11 @@ BX_PRAGMA_DIAGNOSTIC_POP();
 		const bool hmdEnabled = m_ovr.isEnabled() || m_ovr.isDebug();
 		_render->m_hmdEnabled = hmdEnabled;
 
-		if (hmdEnabled)
+// 		if (hmdEnabled)
-		{
+// 		{
-			HMD& hmd = _render->m_hmd;
+// 			HMD& hmd = _render->m_hmd;
-			m_ovr.getEyePose(hmd);
+// 			m_ovr.getEyePose(hmd);
-		}
+// 		}
 
 		ViewState viewState(_render, hmdEnabled);
 

src/renderer_d3d9.cpp

@@ -1144,7 +1144,7 @@ namespace bgfx { namespace d3d9
 				;
 		}
 
-		void flip() BX_OVERRIDE
+		void flip(HMD& /*_hmd*/) BX_OVERRIDE
 		{
 			if (NULL != m_device)
 			{

src/renderer_gl.cpp

@@ -1600,7 +1600,7 @@ namespace bgfx { namespace gl
 			return BGFX_RENDERER_OPENGL_NAME;
 		}
 
-		void flip()
+		void flip(HMD& _hmd)
 		{
 			if (m_flip)
 			{
@@ -1609,7 +1609,7 @@ namespace bgfx { namespace gl
 					m_glctx.swap(m_frameBuffers[m_windows[ii].idx].m_swapChain);
 				}
 
-				if (!m_ovr.swap() )
+				if (!m_ovr.swap(_hmd) )
 				{
 					m_glctx.swap();
 				}
@@ -4553,11 +4553,11 @@ namespace bgfx { namespace gl
 		const bool hmdEnabled = m_ovr.isEnabled() || m_ovr.isDebug();
 		_render->m_hmdEnabled = hmdEnabled;
 
-		if (hmdEnabled)
+// 		if (hmdEnabled)
-		{
+// 		{
-			HMD& hmd = _render->m_hmd;
+// 			HMD& hmd = _render->m_hmd;
-			m_ovr.getEyePose(hmd);
+// 			m_ovr.getEyePose(hmd);
-		}
+// 		}
 
 		ViewState viewState(_render, hmdEnabled);
 

src/renderer_null.cpp

@@ -29,7 +29,7 @@ namespace bgfx { namespace noop
 			return BGFX_RENDERER_NULL_NAME;
 		}
 
-		void flip() BX_OVERRIDE
+		void flip(HMD& /*_hmd*/) BX_OVERRIDE
 		{
 		}