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OVGA.H

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00001 //Filename    : OVGA.H
00002 //Description : Header file for class OVGA (Direct Draw version)
00003 
00004 #ifndef __OVGA_H
00005 #define __OVGA_H
00006 
00007 #ifndef __OVGABUF_H
00008 #include <OVGABUF.H>
00009 #endif
00010 
00011 #ifndef __COLOR_H
00012 #include <COLOR.H>
00013 #endif
00014 
00015 //----------- define constants ----------//
00016 
00017 #define VGA_WIDTH             800
00018 #define VGA_HEIGHT            600
00019 #define VGA_BPP                16
00020 
00021 #define MAX_BRIGHTNESS_ADJUST_DEGREE  32
00022 
00023 //----------- Define constant -------------//
00024 
00025 #define IF_LIGHT_BORDER_COLOR     V_WHITE
00026 #define IF_DARK_BORDER_COLOR     V_BLACK
00027 #define IF_UP_BRIGHTNESS_ADJUST  5
00028 #define IF_DOWN_BRIGHTNESS_ADJUST 6
00029 
00030 //-------- Define macro functions ---------//
00031 
00032 #define get_bitmap_width(bitmapPtr)  (*(short*)bitmapPtr)
00033 #define get_bitmap_height(bitmapPtr) (*((short*)bitmapPtr+1))
00034 
00035 //-------- Define class Vga ----------------//
00036 
00037 typedef unsigned char BYTE;
00038 
00039 struct RGBColor;
00040 class ColorTable;
00041 class VgaCustomPalette;
00042 
00044 class Vga {
00045 public:
00046     LPDIRECTDRAW4     dd_obj;
00047     LPDIRECTDRAWPALETTE dd_pal;
00048 
00049     PALETTEENTRY        pal_entry_buf[256];
00050 
00051     ColorTable*       vga_color_table;
00052     unsigned char     gray_remap_table[256];
00053     int             pixel_format_flag;            // see IMGFUN.H       // new for 16-bit
00054     short *         default_remap_table;          // new for 16-bit
00055 
00056     VgaCustomPalette*   back_up_pal;
00057 
00058     static VgaBuf*      active_buf;
00059     static char       use_back_buf;
00060     static char       opaque_flag;
00061 
00062 public:
00063     Vga();
00064     ~Vga();
00065 
00066     char  dont_blt;                               // chwg021999
00067 
00068     BOOL   init();
00069     BOOL   init_dd();
00070     BOOL   set_mode(int width, int height);
00071     void   deinit();
00072 
00073     char  is_inited()   { return dd_obj!=NULL; }
00074 
00075     BOOL   load_pal(char* fileName);
00076     void  init_gray_remap_table();
00077 
00078     void   activate_pal(VgaBuf*);
00079     void   release_pal();
00080 
00081     void  d3_panel_up(int x1,int y1,int x2,int y2,int vgaFrontOnly=0,int drawBorderOnly=0);
00082     void  d3_panel_down(int x1,int y1,int x2,int y2,int vgaFrontOnly=0,int drawBorderOnly=0);
00083     void  d3_panel2_up(int x1,int y1,int x2,int y2,int vgaFrontOnly=0,int drawBorderOnly=0);
00084     void  d3_panel2_down(int x1,int y1,int x2,int y2,int vgaFrontOnly=0,int drawBorderOnly=0);
00085     void  separator(int x1, int y1, int x2, int y2);
00086 
00087     void  adjust_brightness(int changeValue);
00088 
00089     void  use_front() { use_back_buf=0; active_buf = &vga_front; }
00090     void  use_back()  { use_back_buf=1; active_buf = &vga_back;  }
00091 
00092     BOOL   blt_buf(int x1, int y1, int x2, int y2, int putMouseCursor=1);
00093 
00094     void  disp_image_file(char* fileName,int x1=0, int y1=0);
00095     void  finish_disp_image_file();
00096 
00097     int   translate_color(unsigned char c)        // calc 8-bit color to 16-bit color // new for 16 bit
00098         { return default_remap_table[c]; }
00099 
00100     int   make_pixel(BYTE red, BYTE green, BYTE blue);
00101     int   make_pixel(RGBColor *);
00102     void  decode_pixel(int, RGBColor *);
00103 
00104 private:
00105     void  init_color_table();
00106 };
00107 
00108 extern Vga vga;
00109 extern "C" {
00110     extern short transparent_code_w;
00111 }
00112 
00113 //--------------------------------------------//
00114 #endif
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