+
+/**
+ * Initialize the material data structure.
+ *
+ * \param m pointer to the gl_material structure to be initialized.
+ */
+static void
+init_material( struct gl_material *m )
+{
+ ASSIGN_4V( m->Attrib[MAT_ATTRIB_FRONT_AMBIENT], 0.2F, 0.2F, 0.2F, 1.0F );
+ ASSIGN_4V( m->Attrib[MAT_ATTRIB_FRONT_DIFFUSE], 0.8F, 0.8F, 0.8F, 1.0F );
+ ASSIGN_4V( m->Attrib[MAT_ATTRIB_FRONT_SPECULAR], 0.0F, 0.0F, 0.0F, 1.0F );
+ ASSIGN_4V( m->Attrib[MAT_ATTRIB_FRONT_EMISSION], 0.0F, 0.0F, 0.0F, 1.0F );
+ ASSIGN_4V( m->Attrib[MAT_ATTRIB_FRONT_SHININESS], 0.0F, 0.0F, 0.0F, 0.0F );
+ ASSIGN_4V( m->Attrib[MAT_ATTRIB_FRONT_INDEXES], 0.0F, 1.0F, 1.0F, 0.0F );
+
+ ASSIGN_4V( m->Attrib[MAT_ATTRIB_BACK_AMBIENT], 0.2F, 0.2F, 0.2F, 1.0F );
+ ASSIGN_4V( m->Attrib[MAT_ATTRIB_BACK_DIFFUSE], 0.8F, 0.8F, 0.8F, 1.0F );
+ ASSIGN_4V( m->Attrib[MAT_ATTRIB_BACK_SPECULAR], 0.0F, 0.0F, 0.0F, 1.0F );
+ ASSIGN_4V( m->Attrib[MAT_ATTRIB_BACK_EMISSION], 0.0F, 0.0F, 0.0F, 1.0F );
+ ASSIGN_4V( m->Attrib[MAT_ATTRIB_BACK_SHININESS], 0.0F, 0.0F, 0.0F, 0.0F );
+ ASSIGN_4V( m->Attrib[MAT_ATTRIB_BACK_INDEXES], 0.0F, 1.0F, 1.0F, 0.0F );
+}
+
+
+/**
+ * Initialize all lighting state for the given context.
+ */
+void
+_mesa_init_lighting( GLcontext *ctx )
+{
+ GLuint i;
+
+ /* Lighting group */
+ for (i = 0; i < MAX_LIGHTS; i++) {
+ init_light( &ctx->Light.Light[i], i );
+ }
+ make_empty_list( &ctx->Light.EnabledList );
+
+ init_lightmodel( &ctx->Light.Model );
+ init_material( &ctx->Light.Material );
+ ctx->Light.ShadeModel = GL_SMOOTH;
+ ctx->Light.Enabled = GL_FALSE;
+ ctx->Light.ColorMaterialFace = GL_FRONT_AND_BACK;
+ ctx->Light.ColorMaterialMode = GL_AMBIENT_AND_DIFFUSE;
+ ctx->Light.ColorMaterialBitmask = _mesa_material_bitmask( ctx,
+ GL_FRONT_AND_BACK,
+ GL_AMBIENT_AND_DIFFUSE, ~0,
+ NULL );
+
+ ctx->Light.ColorMaterialEnabled = GL_FALSE;
+ ctx->Light.ClampVertexColor = GL_TRUE;
+
+ /* Lighting miscellaneous */
+ ctx->_ShineTabList = MALLOC_STRUCT( gl_shine_tab );
+ make_empty_list( ctx->_ShineTabList );
+ /* Allocate 10 (arbitrary) shininess lookup tables */
+ for (i = 0 ; i < 10 ; i++) {
+ struct gl_shine_tab *s = MALLOC_STRUCT( gl_shine_tab );
+ s->shininess = -1;
+ s->refcount = 0;
+ insert_at_tail( ctx->_ShineTabList, s );
+ }
+
+ /* Miscellaneous */
+ ctx->Light._NeedEyeCoords = GL_FALSE;
+ ctx->_NeedEyeCoords = GL_FALSE;
+ ctx->_ForceEyeCoords = GL_FALSE;
+ ctx->_ModelViewInvScale = 1.0;
+}
+
+
+/**
+ * Deallocate malloc'd lighting state attached to given context.
+ */
+void
+_mesa_free_lighting_data( GLcontext *ctx )
+{
+ struct gl_shine_tab *s, *tmps;
+
+ /* Free lighting shininess exponentiation table */
+ foreach_s( s, tmps, ctx->_ShineTabList ) {
+ _mesa_free( s );
+ }
+ _mesa_free( ctx->_ShineTabList );
+}