1772    SWR_BACKEND_STATE backendState = {0};  in swr_update_derived()  local
1774       backendState.numAttributes = ctx->gs->info.base.num_outputs - 1;  in swr_update_derived()
1776       backendState.numAttributes = ctx->vs->info.base.num_outputs - 1;  in swr_update_derived()
1778          backendState.numAttributes++;  in swr_update_derived()
1779          backendState.swizzleEnable = true;  in swr_update_derived()
1780          for (unsigned i = 0; i < sizeof(backendState.numComponents); i++) {  in swr_update_derived()
1781             backendState.swizzleMap[i].sourceAttrib = i;  in swr_update_derived()
1783          backendState.swizzleMap[ctx->vs->info.base.num_outputs - 1].constantSource =  in swr_update_derived()
1785          backendState.swizzleMap[ctx->vs->info.base.num_outputs - 1].componentOverrideMask = 1;  in swr_update_derived()
1789       backendState.numAttributes++;  in swr_update_derived()
1791    backendState.numAttributes = std::min((size_t)backendState.numAttributes,  in swr_update_derived()
1792                                          sizeof(backendState.numComponents));  in swr_update_derived()
1793    for (unsigned i = 0; i < backendState.numAttributes; i++)  in swr_update_derived()
1794       backendState.numComponents[i] = 4;  in swr_update_derived()
1795    backendState.constantInterpolationMask = ctx->fs->constantMask |  in swr_update_derived()
1797    backendState.pointSpriteTexCoordMask = ctx->fs->pointSpriteMask;  in swr_update_derived()
1803    backendState.readRenderTargetArrayIndex = pLastFE->writes_layer;  in swr_update_derived()
1804    backendState.readViewportArrayIndex = pLastFE->writes_viewport_index;  in swr_update_derived()
1805    backendState.vertexAttribOffset = VERTEX_ATTRIB_START_SLOT; // TODO: optimize  in swr_update_derived()
1807    backendState.clipDistanceMask =  in swr_update_derived()
1812    backendState.cullDistanceMask =  in swr_update_derived()
1816    backendState.vertexClipCullOffset = backendState.vertexAttribOffset - 2;  in swr_update_derived()
1818    ctx->api.pfnSwrSetBackendState(ctx->swrContext, &backendState);  in swr_update_derived()