Added BGFX_STATE_MSAA to allow non-AA rendering to MSAA surface.

include/bgfx.h

@@ -72,6 +72,7 @@ namespace bgfx
 #define BGFX_STATE_POINT_SIZE_MASK      UINT64_C(0x000ff00000000000)
 
 #define BGFX_STATE_SRGBWRITE            UINT64_C(0x0010000000000000)
+#define BGFX_STATE_MSAA                 UINT64_C(0x0020000000000000)
 
 #define BGFX_STATE_NONE                 UINT64_C(0x0000000000000000)
 #define BGFX_STATE_MASK                 UINT64_C(0xffffffffffffffff)
@@ -81,6 +82,7 @@ namespace bgfx
 			| BGFX_STATE_DEPTH_TEST_LESS \
 			| BGFX_STATE_DEPTH_WRITE \
 			| BGFX_STATE_CULL_CW \
+			| BGFX_STATE_MSAA \
 			)
 
 #define BGFX_CLEAR_NONE                 UINT8_C(0x00)

src/renderer_d3d9.cpp

@@ -1659,7 +1659,7 @@ namespace bgfx
 				if ( (BGFX_STATE_CULL_MASK|BGFX_STATE_DEPTH_WRITE|BGFX_STATE_DEPTH_TEST_MASK
 					 |BGFX_STATE_ALPHA_MASK|BGFX_STATE_ALPHA_WRITE|BGFX_STATE_RGB_WRITE
 					 |BGFX_STATE_BLEND_MASK|BGFX_STATE_ALPHA_REF_MASK|BGFX_STATE_PT_MASK
-					 |BGFX_STATE_POINT_SIZE_MASK|BGFX_STATE_SRGBWRITE) & changedFlags)
+					 |BGFX_STATE_POINT_SIZE_MASK|BGFX_STATE_SRGBWRITE|BGFX_STATE_MSAA) & changedFlags)
 				{
 					if (BGFX_STATE_CULL_MASK & changedFlags)
 					{
@@ -1704,6 +1704,11 @@ namespace bgfx
 					}
 #endif // BX_PLATFORM_WINDOWS
 
+					if (BGFX_STATE_MSAA & changedFlags)
+					{
+						DX_CHECK(s_renderCtx.m_device->SetRenderState(D3DRS_MULTISAMPLEANTIALIAS, (newFlags&BGFX_STATE_MSAA) == BGFX_STATE_MSAA) );
+					}
+
 					if ( (BGFX_STATE_ALPHA_WRITE|BGFX_STATE_RGB_WRITE) & changedFlags)
 					{
 						uint32_t writeEnable = (newFlags&BGFX_STATE_ALPHA_WRITE) ? D3DCOLORWRITEENABLE_ALPHA : 0;