105    struct gl_light_uniforms *lu = &ctx->Light.LightSource[lnum];  in do_light()  local
109       if (TEST_EQ_4V(lu->Ambient, params))  in do_light()
112       COPY_4V( lu->Ambient, params );  in do_light()
115       if (TEST_EQ_4V(lu->Diffuse, params))  in do_light()
118       COPY_4V( lu->Diffuse, params );  in do_light()
121       if (TEST_EQ_4V(lu->Specular, params))  in do_light()
124       COPY_4V( lu->Specular, params );  in do_light()
128       if (TEST_EQ_4V(lu->EyePosition, params))  in do_light()
132       bool old_positional = lu->EyePosition[3] != 0.0f;  in do_light()
134       COPY_4V(lu->EyePosition, params);  in do_light()
156       COPY_3V(lu->_HalfVector, p);  in do_light()
157       lu->_HalfVector[3] = 1.0;  in do_light()
162       if (TEST_EQ_3V(lu->SpotDirection, params))  in do_light()
165       COPY_3V(lu->SpotDirection, params);  in do_light()
170       if (lu->SpotExponent == params[0])  in do_light()
173       lu->SpotExponent = params[0];  in do_light()
177       if (lu->SpotCutoff == params[0])  in do_light()
181       bool old_is_180 = lu->SpotCutoff == 180.0f;  in do_light()
183       lu->SpotCutoff = params[0];  in do_light()
184       lu->_CosCutoff = (cosf(lu->SpotCutoff * M_PI / 180.0));  in do_light()
185       if (lu->_CosCutoff < 0)  in do_light()
186          lu->_CosCutoff = 0;  in do_light()
201       if (lu->ConstantAttenuation == params[0])  in do_light()
205       bool old_is_one = lu->ConstantAttenuation == 1.0f;  in do_light()
207       lu->ConstantAttenuation = params[0];  in do_light()
217       if (lu->LinearAttenuation == params[0])  in do_light()
221       bool old_is_zero = lu->LinearAttenuation == 0.0f;  in do_light()
223       lu->LinearAttenuation = params[0];  in do_light()
233       if (lu->QuadraticAttenuation == params[0])  in do_light()
237       bool old_is_zero = lu->QuadraticAttenuation == 0.0f;  in do_light()
239       lu->QuadraticAttenuation = params[0];  in do_light()
684          struct gl_light_uniforms *lu = &ctx->Light.LightSource[i];  in _mesa_update_material()  local
685          SCALE_3V( light->_MatAmbient[0], lu->Ambient,  in _mesa_update_material()
695          struct gl_light_uniforms *lu = &ctx->Light.LightSource[i];  in _mesa_update_material()  local
696          SCALE_3V( light->_MatAmbient[1], lu->Ambient,  in _mesa_update_material()
720          struct gl_light_uniforms *lu = &ctx->Light.LightSource[i];  in _mesa_update_material()  local
721 	 SCALE_3V( light->_MatDiffuse[0], lu->Diffuse,  in _mesa_update_material()
731          struct gl_light_uniforms *lu = &ctx->Light.LightSource[i];  in _mesa_update_material()  local
732 	 SCALE_3V( light->_MatDiffuse[1], lu->Diffuse,  in _mesa_update_material()
743          struct gl_light_uniforms *lu = &ctx->Light.LightSource[i];  in _mesa_update_material()  local
744 	 SCALE_3V( light->_MatSpecular[0], lu->Specular,  in _mesa_update_material()
754          struct gl_light_uniforms *lu = &ctx->Light.LightSource[i];  in _mesa_update_material()  local
755 	 SCALE_3V( light->_MatSpecular[1], lu->Specular,  in _mesa_update_material()
1035       struct gl_light_uniforms *lu = &ctx->Light.LightSource[i];  in compute_light_positions()  local
1039 	 COPY_4FV( light->_Position, lu->EyePosition );  in compute_light_positions()
1044 			  lu->EyePosition );  in compute_light_positions()
1071 	    COPY_3V( light->_NormSpotDirection, lu->SpotDirection );  in compute_light_positions()
1076             COPY_3V(spotDir, lu->SpotDirection);  in compute_light_positions()
1089 	    if (PV_dot_dir > lu->_CosCutoff) {  in compute_light_positions()
1091                   powf(PV_dot_dir, lu->SpotExponent);  in compute_light_positions()
1183 init_light( struct gl_light *l, struct gl_light_uniforms *lu, GLuint n )  in init_light()  argument
1185    ASSIGN_4V( lu->Ambient, 0.0, 0.0, 0.0, 1.0 );  in init_light()
1187       ASSIGN_4V( lu->Diffuse, 1.0, 1.0, 1.0, 1.0 );  in init_light()
1188       ASSIGN_4V( lu->Specular, 1.0, 1.0, 1.0, 1.0 );  in init_light()
1191       ASSIGN_4V( lu->Diffuse, 0.0, 0.0, 0.0, 1.0 );  in init_light()
1192       ASSIGN_4V( lu->Specular, 0.0, 0.0, 0.0, 1.0 );  in init_light()
1194    ASSIGN_4V( lu->EyePosition, 0.0, 0.0, 1.0, 0.0 );  in init_light()
1195    ASSIGN_3V( lu->SpotDirection, 0.0, 0.0, -1.0 );  in init_light()
1196    lu->SpotExponent = 0.0;  in init_light()
1197    lu->SpotCutoff = 180.0;  in init_light()
1198    lu->_CosCutoff = 0.0;		/* KW: -ve values not admitted */  in init_light()
1199    lu->ConstantAttenuation = 1.0;  in init_light()
1200    lu->LinearAttenuation = 0.0;  in init_light()
1201    lu->QuadraticAttenuation = 0.0;  in init_light()