80    ctx->Viewport.X = x;  in _mesa_set_viewport()
81    ctx->Viewport.Width = width;  in _mesa_set_viewport()
82    ctx->Viewport.Y = y;  in _mesa_set_viewport()
83    ctx->Viewport.Height = height;  in _mesa_set_viewport()
91    _math_matrix_viewport(&ctx->Viewport._WindowMap,  in _mesa_set_viewport()
92                          ctx->Viewport.X, ctx->Viewport.Y,  in _mesa_set_viewport()
93                          ctx->Viewport.Width, ctx->Viewport.Height,  in _mesa_set_viewport()
94                          ctx->Viewport.Near, ctx->Viewport.Far,  in _mesa_set_viewport()
98    if (ctx->Driver.Viewport) {  in _mesa_set_viewport()
102       ctx->Driver.Viewport(ctx, x, y, width, height);  in _mesa_set_viewport()
124    if (ctx->Viewport.Near == nearval &&  in _mesa_DepthRange()
125        ctx->Viewport.Far == farval)  in _mesa_DepthRange()
128    ctx->Viewport.Near = (GLfloat) CLAMP(nearval, 0.0, 1.0);  in _mesa_DepthRange()
129    ctx->Viewport.Far = (GLfloat) CLAMP(farval, 0.0, 1.0);  in _mesa_DepthRange()
137    _math_matrix_viewport(&ctx->Viewport._WindowMap,  in _mesa_DepthRange()
138                          ctx->Viewport.X, ctx->Viewport.Y,  in _mesa_DepthRange()
139                          ctx->Viewport.Width, ctx->Viewport.Height,  in _mesa_DepthRange()
140                          ctx->Viewport.Near, ctx->Viewport.Far,  in _mesa_DepthRange()
164    ctx->Viewport.X = 0;  in _mesa_init_viewport()
165    ctx->Viewport.Y = 0;  in _mesa_init_viewport()
166    ctx->Viewport.Width = 0;  in _mesa_init_viewport()
167    ctx->Viewport.Height = 0;  in _mesa_init_viewport()
168    ctx->Viewport.Near = 0.0;  in _mesa_init_viewport()
169    ctx->Viewport.Far = 1.0;  in _mesa_init_viewport()
170    _math_matrix_ctr(&ctx->Viewport._WindowMap);  in _mesa_init_viewport()
172    _math_matrix_viewport(&ctx->Viewport._WindowMap, 0, 0, 0, 0,  in _mesa_init_viewport()
183    _math_matrix_dtr(&ctx->Viewport._WindowMap);  in _mesa_free_viewport_data()