feat(gui): 迁移图形界面库从SDL3到IUP

- 移除SDL3依赖，引入IUP图形界面库
- 更新Makefile以支持IUP编译配置
- 重构GUI模块，移除SDL相关代码
- 更新全局变量和类型定义，移除SDL依赖
- 添加IUP头文件到项目库目录
- 删除手动帧率控制(SDL_Delay)，依赖IUP事件循环
- 更新编译脚本和文档说明

libs/iup-3.31_Win64_dllw6_lib/include/iupcbs.h

@@ -0,0 +1,79 @@
+/** \file
+ * \brief Contains all function pointer typedefs.
+ *
+ * See Copyright Notice in "iup.h"
+ */
+ 
+#ifndef __IUPCBS_H 
+#define __IUPCBS_H
+
+struct _cdCanvas;
+
+typedef int  (*IFidle)(void);  /* idle */
+typedef void (*IFentry)(void);  /* entry */
+
+typedef void (*IFi)(int); /* globalentermodal_cb, globalleavemodal_cb,  */
+typedef void (*IFs)(char*);  /* openurl_cb */
+typedef void (*IFii)(int, int); /* globalkeypress_cb */
+typedef void (*IFiis)(int, int, char*);  /* globalmotion_cb, openfiles_cb */
+typedef void (*IFiiiis)(int, int, int, int, char*);  /* globalbutton_cb */
+typedef void (*IFfiis)(float,int,int,char*);  /* globalwheel_cb */
+typedef void (*IFvs)(void*, char*);  /* handleadd_cb, handleremove_cb, imagecreate_cb, imagedestroy_cb */
+
+typedef int (*IFn)(Ihandle*);  /* default definition, same as Icallback */
+typedef int (*IFni)(Ihandle*, int);   /* k_any, show_cb, toggle_action, spin_cb, branchopen_cb, branchclose_cb, executeleaf_cb, showrename_cb, rightclick_cb, extended_cb, height_cb, width_cb */
+typedef int (*IFnii)(Ihandle*, int, int);  /* resize_cb, caret_cb, matrix_mousemove_cb, enteritem_cb, leaveitem_cb, scrolltop_cb, dropcheck_cb, selection_cb, select_cb, switch_cb, scrolling_cb, vspan_cb, hspan_cb */
+typedef int (*IFniii)(Ihandle*, int, int, int); /* trayclick_cb, edition_cb */
+typedef int (*IFniiii)(Ihandle*, int, int, int, int); /* dragdrop_cb */
+typedef int (*IFniiiiiiC)(Ihandle*, int, int, int, int, int, int, struct _cdCanvas*);  /* draw_cb */
+typedef int (*IFniiiiii)(Ihandle*, int, int, int, int, int, int);  /* OLD draw_cb */
+typedef int (*IFnsidv)(Ihandle*, char*, int, double, void*); /* postmessage_cb */
+
+typedef int (*IFnff)(Ihandle*, float, float);    /* canvas_action */
+typedef int (*IFniff)(Ihandle*,int,float,float);  /* scroll_cb */
+typedef int (*IFnfiis)(Ihandle*,float,int,int,char*);  /* wheel_cb */
+
+typedef int (*IFnsVi)(Ihandle*, char*, void*, int);  /* dragdata_cb */
+typedef int (*IFnsViii)(Ihandle*, char*, void*, int, int, int);  /* dropdata_cb */
+typedef int (*IFnsiii)(Ihandle*, char*, int, int, int);  /* dropfiles_cb */
+typedef int (*IFnssi)(Ihandle*, char*, char*, int);  /* dragfilecreatename_cb */
+
+typedef int (*IFnnii)(Ihandle*, Ihandle*, int, int); /* drop_cb */
+typedef int (*IFnn)(Ihandle*, Ihandle*); /* savemarkers_cb, restoremarkers_cb */
+typedef int (*IFnnn)(Ihandle*, Ihandle*, Ihandle*); /* tabchange_cb */
+typedef int (*IFnss)(Ihandle*, char *, char *);  /* file_cb */
+typedef int (*IFns)(Ihandle*, char *);  /* multiselect_cb */
+typedef int (*IFnsi)(Ihandle*, char *, int);  /* copydata_cb */
+typedef int (*IFnis)(Ihandle*, int, char *);  /* text_action, multiline_action, edit_cb, rename_cb */
+typedef int (*IFnsii)(Ihandle*, char*, int, int);  /* list_action */
+typedef int (*IFniis)(Ihandle*, int, int, char*);  /* motion_cb, click_cb, value_edit_cb */
+typedef int (*IFniiis)(Ihandle*, int, int, int, char*);  /* touch_cb, dblclick_cb */
+typedef int (*IFniiiis)(Ihandle*, int, int, int, int, char*);  /* button_cb, matrix_action, mousemotion_cb */
+typedef int (*IFniiiiiis)(Ihandle*, int, int, int, int, int, int, char*);  /* mouseclick_cb */
+
+typedef int (*IFnIi)(Ihandle*, int*, int); /* multiselection_cb, multiunselection_cb */
+typedef int (*IFnd)(Ihandle*, double);  /* mousemove_cb, button_press_cb, button_release_cb */
+typedef int (*IFniiIII)(Ihandle*, int, int, int*, int*, int*); /* fgcolor_cb, bgcolor_cb */
+typedef int (*IFniinsii)(Ihandle*, int, int, Ihandle*, char*, int, int); /* dropselect_cb */
+typedef int (*IFnccc)(Ihandle*, unsigned char, unsigned char, unsigned char); /* drag_cb, change_cb */
+typedef int (*IFniIIII)(Ihandle*, int, int*, int*, int*, int*); /* multitouch_cb */
+
+typedef int (*IFnC)(Ihandle*, struct _cdCanvas*); /* postdraw_cb, predraw_cb */
+typedef int (*IFniidd)(Ihandle*, int, int, double, double); /* delete_cb */
+typedef int (*IFniiddi)(Ihandle*, int, int, double, double, int); /* select_cb */
+typedef int (*IFniiddiddi)(Ihandle*, int, int, double, double, int, double, double, int); /* clicksegment_cb */
+typedef int (*IFniidds)(Ihandle*, int, int, double, double, char*);  /* plotbutton_cb */
+typedef int (*IFndds)(Ihandle*, double, double, char*);    /* plotmotion_cb */
+typedef int (*IFnssds)(Ihandle*, char*, char*, double, char*); /* plottickformat_cb */
+typedef int (*IFnni)(Ihandle*, Ihandle*, int);
+
+typedef char* (*sIFnii)(Ihandle*, int, int);  /* value_cb, font_cb */
+typedef char* (*sIFni)(Ihandle*, int);  /* cell_cb */
+typedef char* (*sIFniis)(Ihandle*, int, int, char*);  /* translatevalue_cb */
+
+typedef double (*dIFnii)(Ihandle*, int, int);  /* numericgetvalue_cb */
+typedef int    (*IFniid)(Ihandle*, int, int, double);  /* numericsetvalue_cb */
+
+typedef void (*IFniiv)(Ihandle*, int, int, void*);  /* android_onactivityresult_cb */
+
+#endif