/* to fill */ #include "ptexlib.h" scaled max_v = 0; /* maximum height-plus-depth of pages shipped so far */ scaled max_h = 0; /* maximum width of pages shipped so far */ boolean doing_leaders = false; /* are we inside a leader box? */ int cur_s = -1; /* current depth of output box nesting, initially $-1$ */ static backend_struct *backend = NULL; backend_function *backend_out, *backend_out_whatsit, *backend_out_control; static void missing_backend_function(PDF pdf, halfword p) { const char *n = get_node_name(type(p), subtype(p)); if (type(p) == whatsit_node) formatted_error("pdf backend","no output function for whatsit %s",n); else formatted_error("pdf backend","no output function for node %s",n); } static void init_none_backend_functions(void) { backend_struct *p = &backend[OMODE_NONE]; p->name = strdup("NONE"); } static void init_pdf_backend_functions(void) { backend_struct *p = &backend[OMODE_PDF]; p->name = strdup("PDF"); p->node_fu[rule_node] = &pdf_place_rule; p->node_fu[glyph_node] = &pdf_place_glyph; p->whatsit_fu[special_node] = &pdf_special; p->whatsit_fu[pdf_literal_node] = &pdf_out_literal; p->whatsit_fu[pdf_refobj_node] = &pdf_ref_obj; p->whatsit_fu[pdf_annot_node] = &do_annot; p->whatsit_fu[pdf_start_link_node] = &do_link; p->whatsit_fu[pdf_end_link_node] = &end_link; p->whatsit_fu[pdf_dest_node] = &do_dest; p->whatsit_fu[pdf_thread_node] = &do_thread; p->whatsit_fu[pdf_end_thread_node] = &end_thread; p->whatsit_fu[late_lua_node] = &late_lua; p->whatsit_fu[pdf_colorstack_node] = &pdf_out_colorstack; p->whatsit_fu[pdf_setmatrix_node] = &pdf_out_setmatrix; p->whatsit_fu[pdf_save_node] = &pdf_out_save; p->whatsit_fu[pdf_restore_node] = &pdf_out_restore; p->whatsit_fu[pdf_link_state_node] = &pdf_out_link_state; p->control_fu[backend_control_push_list] = &pdf_push_list; p->control_fu[backend_control_pop_list] = &pdf_pop_list; p->control_fu[backend_control_begin_page] = &pdf_begin_page; p->control_fu[backend_control_end_page] = &pdf_end_page; p->control_fu[backend_control_open_file] = &pdf_open_file; p->control_fu[backend_control_write_header] = &pdf_write_header; p->control_fu[backend_control_finish_file] = &pdf_finish_file; p->control_fu[backend_control_set_reference_point] = &pdf_set_reference_point; } static void init_dvi_backend_functions(void) { backend_struct *p = &backend[OMODE_DVI]; p->name = strdup("DVI"); p->node_fu[rule_node] = &dvi_place_rule; p->node_fu[glyph_node] = &dvi_place_glyph; p->whatsit_fu[special_node] = &dvi_special; p->whatsit_fu[late_lua_node] = &late_lua; p->control_fu[backend_control_push_list] = &dvi_push_list; p->control_fu[backend_control_pop_list] = &dvi_pop_list; p->control_fu[backend_control_begin_page] = &dvi_begin_page; p->control_fu[backend_control_end_page] = &dvi_end_page; p->control_fu[backend_control_open_file] = &dvi_open_file; p->control_fu[backend_control_write_header] = &dvi_write_header; p->control_fu[backend_control_finish_file] = &dvi_finish_file; p->control_fu[backend_control_set_reference_point] = &dvi_set_reference_point; } void init_backend_functionpointers(output_mode o_mode) { int i, j; if (backend == NULL) { backend = xmalloc((MAX_OMODE + 1) * sizeof(backend_struct)); for (i = 0; i <= MAX_OMODE; i++) { backend[i].node_fu = xmalloc((MAX_NODE_TYPE + 1) * sizeof(backend_function)); backend[i].whatsit_fu = xmalloc((MAX_WHATSIT_TYPE + 1) * sizeof(backend_function)); backend[i].control_fu = xmalloc((MAX_CONTROL_TYPE + 1) * sizeof(backend_function)); for (j = 0; j < MAX_NODE_TYPE + 1; j++) backend[i].node_fu[j] = &missing_backend_function; for (j = 0; j < MAX_WHATSIT_TYPE + 1; j++) backend[i].whatsit_fu[j] = &missing_backend_function; for (j = 0; j < MAX_CONTROL_TYPE + 1; j++) backend[i].control_fu[j] = &missing_backend_function; } init_none_backend_functions(); init_dvi_backend_functions(); init_pdf_backend_functions(); } backend_out = backend[o_mode].node_fu; backend_out_whatsit = backend[o_mode].whatsit_fu; backend_out_control = backend[o_mode].control_fu; } output_mode get_o_mode(void) { output_mode o_mode; if (output_mode_par > 0) { o_mode = OMODE_PDF; } else o_mode = OMODE_DVI; return o_mode; } void fix_o_mode(void) { output_mode o_mode = get_o_mode(); if (output_mode_used == OMODE_NONE) { output_mode_used = o_mode; /*tex Used by synctex, we need to use output_mode_used there: */ static_pdf->o_mode = output_mode_used; } else if (output_mode_used != o_mode) { normal_error("pdf backend", "\\outputmode can only be changed before anything is written to the output"); } init_backend_functionpointers(output_mode_used); }