CHG: Add "read_elf_res_by_id" functionality

src/BipEmulator.Host/FunctionNames.cs

@@ -19,6 +19,7 @@
         public const string LOG_PRINTF = "log_printf";
         public const string REG_MENU = "reg_menu";
         public const string REPAINT_SCREEN_LINES = "repaint_screen_lines";
+        public const string READ_ELF_RES_BY_ID = "read_elf_res_by_id";
         public const string SET_BG_COLOR = "set_bg_color";
         public const string SET_FG_COLOR = "set_fg_color";
         public const string SET_UPDATE_PERIOD = "set_update_period";

src/BipEmulator.Host/MainForm.cs

@@ -5,6 +5,7 @@ using System.Drawing;
 using System.Globalization;
 using System.IO;
 using System.IO.MemoryMappedFiles;
+using System.Linq;
 using System.Reflection;
 using System.Runtime.InteropServices;
 using System.Text;
@@ -191,16 +192,27 @@ namespace BipEmulator.Host
                     return 0;
 
                 case FunctionNames.GET_RES_PARAMS:
-                    var res = GetUserResImage((int)args[2]);
-                    if (res == null)
-                        return -1;
+                    {
+                        var res = GetUserResImage((int)args[2]);
+                        if (res == null)
+                            return -1;
 
-                    var bmp = res.Bitmap;
+                        var bmp = res.Bitmap;
 
-                    var param = new ResParam { Width=(short)bmp.Width, Height=(short)bmp.Height };
-                    CopyStructToUnmanagedMemory(param, (IntPtr)args[3]);
-                    return 0;
+                        var param = new ResParam { Width = (short)bmp.Width, Height = (short)bmp.Height };
+                        CopyStructToUnmanagedMemory(param, (IntPtr)args[3]);
+                        return 0;
+                    }
+                case FunctionNames.READ_ELF_RES_BY_ID:
+                    {
+                        // only own resources
+                        if ((int)args[1] != -1)
+                            return -1;
 
+                        var data = GetUserResData(/*resId*/(int)args[2],/*offset*/(int)args[3], (int)args[5]/*len*/);
+                        Marshal.Copy(data, 0, (IntPtr)args[4], data.Length);
+                        return 0;
+                    }
                 case FunctionNames.SHOW_BIG_DIGITS:
                     ShowBigDigit((int)args[1], args[2].ToString(), (int)args[3], (int)args[4], (int)args[5]);
                     break;
@@ -390,6 +402,27 @@ namespace BipEmulator.Host
             Marshal.FreeHGlobal(pnt);
         }
 
+        private byte[] GetUserResData(int resId, int offset, int len)
+        {
+            try
+            {
+                if (_userResFile == null)
+                {
+                    _userResFile = ResFile.Load(tbUserResFile.Text);
+                    var data = new byte[len];
+                    if (offset + len > _userResFile.Resources[resId].Length)
+                        return null;
+                    Buffer.BlockCopy(_userResFile.Resources[resId], 0,  data, 0, len);
+                    return data;
+                }
+            }
+            catch
+            {
+                Debug.WriteLine("Exception GetUserResData");
+            }
+            return null;
+        }
+
         private ResImage GetUserResImage(int resId)
         {
             try

src/BipEmulator.Proxy/ProxyLib.cpp

@@ -221,6 +221,16 @@ namespace BipEmulatorProxy
             return -1;
         }
 
+        static int CallbackInt(String^ fName, int p0, int p1, int p2, void* p3, int p4)
+        {
+            if (CallbackFunc != nullptr)
+            {
+                array<Object^>^ arr = gcnew array<Object^>(6) { fName, p0, p1, p2, gcnew IntPtr(p3), p4 };
+                return safe_cast<int>(CallbackFunc(arr));
+            }
+            return -1;
+        }
+
         static int CallbackInt(String^ fName, int p0, int p1, int p2, int p3)
         {
             if (CallbackFunc != nullptr)
@@ -394,7 +404,6 @@ int get_text_height()
     return BipEmulatorProxy::ProxyLib::CallbackInt("get_text_height");
 }
 
-
 int get_res_params(int index_listed, int res_id, struct res_params_* res_params)
 {
     return BipEmulatorProxy::ProxyLib::CallbackInt("get_res_params", index_listed, res_id, (void*)res_params);
@@ -540,6 +549,11 @@ int ElfWriteSettings(int index_listed, void* buffer, int offset, int len)
     return 0;
 }
 
+int read_elf_res_by_id(int index_listed, int res_id, int offset, void* buffer, int len)
+{
+    return BipEmulatorProxy::ProxyLib::CallbackInt("read_elf_res_by_id", index_listed, res_id, offset, buffer, len);
+}
+
 void _srand(unsigned int seed)
 {
     srand(seed);

src/BipEmulator.Proxy/libbip.h

@@ -65,7 +65,7 @@ struct gesture_ {
 #define GESTURE_SWIPE_UP        2 // ñâàéï ñíèçó ââåðõ
 #define GESTURE_SWIPE_DOWN      3 // ñâàéï ñâåðõó âíèç
 #define GESTURE_SWIPE_LEFT      4 // ñâàéï ñïðàâà íàëåâî
-#define GESTURE_SWIPE_RIGHT     5 // ñâàéï ñëåâà íàïðàâî
+#define GESTURE_SWIPE_RIGHT    5 // ñâàéï ñëåâà íàïðàâî
 
 // âèä àíèìàöèè äëÿ ôóíêöèè show_menu_animate
 #define ANIMATE_LEFT        0   // àíèìàöèÿ ïåðåõîäà ýêðàíà ñïðàâà íàëåâî
@@ -129,6 +129,9 @@ struct res_params_ {
     short height;     //  âûñîòà â ðõ     
 };
 
+#define INDEX_MAIN_RES  ((int)0xFFFF0000)
+#define ELF_INDEX_SELF  ((int)0xFFFFFFFF)
+
 // ñòðóêòóðû äàííûõ äàò÷èêà ñåðäöà
 // 1.1.5.12, 1.1.5.36
 typedef struct {
@@ -258,6 +261,8 @@ void draw_filled_rect_bg(int from_x, int from_y, int to_x, int to_y);
 int ElfReadSettings(int index_listed, void* buffer, int offset, int len);
 // çàïèñü ñåêöèè íàñòðîåê êîíêðåòíîãî ýëüôà 
 int ElfWriteSettings(int index_listed, void* buffer, int offset, int len);
+// ÷òåíèå äàííûõ ðåñóðñîâ (ñòàíäàðòíûõ è ïðèëîæåíèÿ) íà÷èíàÿ ñ offset äëèíîé len ïî åãî íîìåðó res_id
+int read_elf_res_by_id(int index_listed, int res_id, int offset, void* buffer, int len);
 // îòîáðàæåíèå ãðàôè÷åñêîãî ðåñóðñà ïî åãî íîìåðó
 void show_res_by_id(int res_ID, int pos_x, int pos_y);
 // îòîáðàæàåò íà ýêðàíå ãðàôè÷åñêèé ðåñóðñ êîíêðåòíîãî ýëüôà, ñîäåðæàùèéñÿ â ñåêöèè .elf.resources