static void TraverseTransform2D(GF_Node *node, void *rs, Bool is_destroy) { M_Transform2D *tr = (M_Transform2D *)node; Transform2DStack *ptr = (Transform2DStack *)gf_node_get_private(node); GF_TraverseState *tr_state; if (is_destroy) { gf_sc_check_focus_upon_destroy(node); group_2d_destroy(node, (GroupingNode2D*)ptr); gf_free(ptr); return; } tr_state = (GF_TraverseState *) rs; if (gf_node_dirty_get(node) & GF_SG_NODE_DIRTY) { gf_mx2d_init(ptr->mat); ptr->is_identity = 1; if ((tr->scale.x != FIX_ONE) || (tr->scale.y != FIX_ONE)) { gf_mx2d_add_scale_at(&ptr->mat, tr->scale.x, tr->scale.y, 0, 0, tr->scaleOrientation); ptr->is_identity = 0; } if (tr->rotationAngle) { gf_mx2d_add_rotation(&ptr->mat, tr->center.x, tr->center.y, tr->rotationAngle); ptr->is_identity = 0; } if (tr->translation.x || tr->translation.y) { ptr->is_identity = 0; gf_mx2d_add_translation(&ptr->mat, tr->translation.x, tr->translation.y); } gf_node_dirty_clear(node, GF_SG_NODE_DIRTY); ptr->is_null = (!tr->scale.x || !tr->scale.y) ? 1 : 0; } traverse_transform(node, ptr, tr_state); }
static void RenderTransform2D(GF_Node *node, void *rs, Bool is_destroy) { GF_Matrix2D bckup; M_Transform2D *tr = (M_Transform2D *)node; Transform2DStack *ptr = (Transform2DStack *)gf_node_get_private(node); RenderEffect2D *eff; if (is_destroy) { DeleteGroupingNode2D((GroupingNode2D *)ptr); free(ptr); return; } eff = (RenderEffect2D *) rs; if (gf_node_dirty_get(node) & GF_SG_NODE_DIRTY) { gf_mx2d_init(ptr->mat); ptr->is_identity = 1; if ((tr->scale.x != FIX_ONE) || (tr->scale.y != FIX_ONE)) { gf_mx2d_add_scale_at(&ptr->mat, tr->scale.x, tr->scale.y, 0, 0, tr->scaleOrientation); ptr->is_identity = 0; } if (tr->rotationAngle) { gf_mx2d_add_rotation(&ptr->mat, tr->center.x, tr->center.y, tr->rotationAngle); ptr->is_identity = 0; } if (tr->translation.x || tr->translation.y) { ptr->is_identity = 0; gf_mx2d_add_translation(&ptr->mat, tr->translation.x, tr->translation.y); } } /*note we don't clear dirty flag, this is done in traversing*/ if (ptr->is_identity) { group2d_traverse((GroupingNode2D *)ptr, tr->children, eff); } else { gf_mx2d_copy(bckup, eff->transform); gf_mx2d_copy(eff->transform, ptr->mat); gf_mx2d_add_matrix(&eff->transform, &bckup); group2d_traverse((GroupingNode2D *)ptr, tr->children, eff); gf_mx2d_copy(eff->transform, bckup); } }
static void GradientGetMatrix(GF_Node *transform, GF_Matrix2D *mat) { gf_mx2d_init(*mat); if (transform) { switch (gf_node_get_tag(transform) ) { case TAG_MPEG4_Transform2D: { M_Transform2D *tr = (M_Transform2D *)transform; gf_mx2d_add_scale_at(mat, 0, 0, tr->scale.x, tr->scale.y, tr->scaleOrientation); gf_mx2d_add_rotation(mat, tr->center.x, tr->center.y, tr->rotationAngle); gf_mx2d_add_translation(mat, tr->translation.x, tr->translation.y); } break; case TAG_MPEG4_TransformMatrix2D: TM2D_GetMatrix(transform, mat); break; default: break; } } }