sokol_gfx.h d3d11: use ID3D11DeviceContext::ClearState() to clear device state

sokol_gfx.h

@@ -7844,6 +7844,14 @@ static inline void _sg_d3d11_Unmap(ID3D11DeviceContext* self, ID3D11Resource* pR
     #endif
 }
 
+static inline void _sg_d3d11_ClearState(ID3D11DeviceContext* self) {
+    #if defined(__cplusplus)
+        self->ClearState();
+    #else
+        self->lpVtbl->ClearState(self);
+    #endif
+}
+
 /*-- enum translation functions ----------------------------------------------*/
 _SOKOL_PRIVATE D3D11_USAGE _sg_d3d11_usage(sg_usage usg) {
     switch (usg) {
@@ -8182,21 +8190,7 @@ _SOKOL_PRIVATE void _sg_d3d11_discard_backend(void) {
 
 _SOKOL_PRIVATE void _sg_d3d11_clear_state(void) {
     /* clear all the device context state, so that resource refs don't keep stuck in the d3d device context */
-    _sg_d3d11_OMSetRenderTargets(_sg.d3d11.ctx, SG_MAX_COLOR_ATTACHMENTS, _sg.d3d11.zero_rtvs, NULL);
-    _sg_d3d11_RSSetState(_sg.d3d11.ctx, NULL);
-    _sg_d3d11_OMSetDepthStencilState(_sg.d3d11.ctx, NULL, 0);
-    _sg_d3d11_OMSetBlendState(_sg.d3d11.ctx, NULL, NULL, 0xFFFFFFFF);
-    _sg_d3d11_IASetVertexBuffers(_sg.d3d11.ctx, 0, SG_MAX_SHADERSTAGE_BUFFERS, _sg.d3d11.zero_vbs, _sg.d3d11.zero_vb_strides, _sg.d3d11.zero_vb_offsets);
-    _sg_d3d11_IASetIndexBuffer(_sg.d3d11.ctx, NULL, DXGI_FORMAT_UNKNOWN, 0);
-    _sg_d3d11_IASetInputLayout(_sg.d3d11.ctx, NULL);
-    _sg_d3d11_VSSetShader(_sg.d3d11.ctx, NULL, NULL, 0);
-    _sg_d3d11_PSSetShader(_sg.d3d11.ctx, NULL, NULL, 0);
-    _sg_d3d11_VSSetConstantBuffers(_sg.d3d11.ctx, 0, SG_MAX_SHADERSTAGE_UBS, _sg.d3d11.zero_cbs);
-    _sg_d3d11_PSSetConstantBuffers(_sg.d3d11.ctx, 0, SG_MAX_SHADERSTAGE_UBS, _sg.d3d11.zero_cbs);
-    _sg_d3d11_VSSetShaderResources(_sg.d3d11.ctx, 0, SG_MAX_SHADERSTAGE_IMAGES, _sg.d3d11.zero_srvs);
-    _sg_d3d11_PSSetShaderResources(_sg.d3d11.ctx, 0, SG_MAX_SHADERSTAGE_IMAGES, _sg.d3d11.zero_srvs);
-    _sg_d3d11_VSSetSamplers(_sg.d3d11.ctx, 0, SG_MAX_SHADERSTAGE_IMAGES, _sg.d3d11.zero_smps);
-    _sg_d3d11_PSSetSamplers(_sg.d3d11.ctx, 0, SG_MAX_SHADERSTAGE_IMAGES, _sg.d3d11.zero_smps);
+    _sg_d3d11_ClearState(_sg.d3d11.ctx);
 }
 
 _SOKOL_PRIVATE void _sg_d3d11_reset_state_cache(void) {