neo.h

NEO SDK是一个跨平台的免费开源图形软件开发包。它支持基本绘图、多种格式图形显示、鼠标操 作、扩展内存和扩充内存的操作、时钟、音频播放、多种字体的汉字及英文显示等等特性；更激动人心的是

         unsigned char m = 0x80;

         for(k = 0; k < 8; ++k)
         {
            if(cursor_p->mask[j] & m)
            {
               cursor_p->buffer[( y<<5 )+x] = (TPT8 + 16);
            }
            ++x;
            m >>= 1;
         }
      }
      ++y;
      x = 0;
   }
   fir_icon_color_pos(cursor_p->fir_cur_col);

   return cursor_p;
}
 
void blit_icon(Cursor_ptr cursor_p, int x, int y){
   int i, j;
   unsigned int color;

   if (g_color_depth == 8)
   {
      for(i=0; i<32; ++i)
      {
         for(j=0; j<32; j+=2)
         {
            if ((color=cursor_p->buffer[(i<<5)+j])  != (TPT8 + 16)) dot(x + j, y + i, color);
            if ((color=cursor_p->buffer[(i<<5)+j+1])!=(TPT8 + 16)) dot(x + j + 1,y + i, color);
         }
      }
   }
   else if (g_color_depth == 15 || g_color_depth == 16)
   {
      for(i=0; i<32; ++i)
      {
         for(j=0; j<32; j+=1)
         {
            if ((cursor_p->buffer[(i<<5)+j]) != (TPT8 + 16))
            {
               dot(x + j, y + i, cursor_p->color64k[cursor_p->buffer[(i<<5)+j]]);
            }
         }
      }
   }
}

void show_icon(char *curfile, int x, int y){
   Cursor_ptr cur_p;

   cur_p = load_icon(curfile);
   blit_icon(cur_p,x,y);
   free(cur_p);
}

char bitmap_color_depth(char *bmp){
    PALLETE pal;
    char cd;
    BITMAP *b = load_bitmap(bmp, pal);
    cd = bitmap_color_depth(b);
    destroy_bitmap(b);
    return cd;
}        

char show_bmp(char *bmpfile, int x, int y)
{
    PALLETE pal;
    BITMAP *bmp = load_bitmap(bmpfile, pal);
    if (bmp == NULL) return FALSE;
    
    if (bitmap_color_depth(bmp) == 8) set_palette(pal);
    blit(bmp, g_surface_ptr[g_work_surface], 0, 0, x, y, bmp->w, bmp->h);
    destroy_bitmap(bmp);
    return TRUE;
}

char _show_bmp(char *bmpfile, int x, int y)
{
    PALLETE pal;
    BITMAP *bmp = load_bitmap(bmpfile, pal);
    if (bmp == NULL) return FALSE;
    
    if (bitmap_color_depth(bmp) == 8) set_palette(pal);
    masked_blit(bmp, g_surface_ptr[g_work_surface], 0, 0, x, y, bmp->w, bmp->h);
    destroy_bitmap(bmp);
    return TRUE;
}

char _show_bmp_v_flip(char *bmpfile, int x, int y)
{
    PALLETE pal;
    BITMAP *bmp = load_bitmap(bmpfile, pal);
    if (bmp == NULL) return FALSE;
    
    if (bitmap_color_depth(bmp) == 8) set_palette(pal);
    draw_sprite_v_flip(g_surface_ptr[g_work_surface], bmp, x, y);
    destroy_bitmap(bmp);
    return TRUE;
}

char bmp_blit(char *bmpname, int source_x, int source_y, int dest_x, int dest_y, int width, int height){
    PALLETE pal;
    BITMAP *bmp = load_bitmap(bmpname, pal);
    if (bmp == NULL) return FALSE;
    
    if (bitmap_color_depth(bmp) == 8) set_palette(pal);
    blit(bmp, g_surface_ptr[g_work_surface], source_x, source_y, dest_x, dest_x, width, height);
    destroy_bitmap(bmp);
    return TRUE;
} 

char bmp_masked_blit(char *bmpname, int source_x, int source_y, int dest_x, int dest_y, int width, int height){
    PALLETE pal;
    BITMAP *bmp = load_bitmap(bmpname, pal);
    if (bmp == NULL) return FALSE;
    
    if (bitmap_color_depth(bmp) == 8) set_palette(pal);
    masked_blit(bmp, g_surface_ptr[g_work_surface], source_x, source_y, dest_x, dest_x, width, height);
    destroy_bitmap(bmp);
    return TRUE;
}

BITMAP *get_image(unsigned x0, unsigned y0, unsigned x1, unsigned y1){
    int w = x1 - x0;
    int h = y1 - y0;
    BITMAP *image = create_bitmap(w, h);
    if (image == NULL || w <= 0 || h <= 0) return NULL;

    blit(g_surface_ptr[g_work_surface], image, x0, y0, 0, 0, w, h);
    return image;
}

void put_image(BITMAP *image, int x, int y){
    blit(image, g_surface_ptr[g_work_surface], 0, 0, x, y, image->w, image->h);
}    

BITMAP *_load_bmp(char *filename){
    RGB *pal;
    BITMAP *bmp = load_bmp(filename, pal);
    if (bmp == NULL) return NULL;
    return bmp;
}

char blit(BITMAP *bmp){
    blit(bmp, g_surface_ptr[g_work_surface], 0, 0, 0, 0, bmp->w, bmp->h);
    return TRUE;
}

void free_bmp(BITMAP *bitmap){
    destroy_bitmap(bitmap);
}

char rect_save_screen(char *bmpfile, unsigned left, unsigned top, unsigned right, unsigned bottom){
    BITMAP *bmp;
    PALETTE pal;

    get_palette(pal);
    bmp = create_sub_bitmap(screen, left, top, right - left, bottom - top);
    if (bmp == NULL) return FALSE;
    save_bitmap(bmpfile, bmp, pal);
    destroy_bitmap(bmp);
    return TRUE;
}

char save_screen(char *bmpfile) {
    return rect_save_screen(bmpfile, 0, 0, SCREEN_W, SCREEN_H);
}

void show_mouse(void){
    show_mouse(screen);
}

void mouse_refresh(void){
    //update_mouse();
    //draw_mouse(TRUE, FALSE);
}

void set_dbl_click_delay(int userdelay){}

int  set_mouse_icon(char *p_iconfile){
    BITMAP *sprite;
    PALETTE p;
    if (p_iconfile)
    {
        sprite = load_bitmap(p_iconfile, p);
        set_mouse_sprite(sprite);
        //destroy_bitmap(sprite);    
        return TRUE;
    }
    else
    set_mouse_sprite(NULL);    
    return FALSE;
}

int  get_click_info(void){
    return mouse_b;
}       

void en_slant(char slant){
   if (slant != 0)   
      g_slant = slant > 0?1 : -1;
   else
      g_slant = 0;
}

void asc_out(char c, int cx, int cy, int color){
    char str[2];
    str[0] = c;
    str[1] = '\0';
    textout_ex(g_surface_ptr[g_work_surface], font, str, cx, cy, color, g_text_bg);
}

void textout(const char *str, int sx, int sy){
   int index;
   for (index = 0; str[index] != 0; index++)
   {
      asc_out(str[index], sx + (index << 3) + g_blank, sy, g_str_color);
   }
}

char put_chinese(char *string, int x, int y, int color, int blank){
   FILE *hzk_p;
   long fpos;       /*汉字在字库文件中的偏移*/
   int  i, j, k, l;
   int asc_size = 0;/*用来或得当前英文字符的高*/
   char hz_buf[72]; /*汉字字模缓冲区，目前能支持24X24点阵字符的存放*/

   if ((hzk_p=fopen(g_hz_font,"rb+"))==NULL)/* 打开24点阵字库文件 */
   {
      #ifndef NEO_sys_report_error_unused
      Errinfo_t error = {"put_chinese", NO_FILE, 1};
      throw_error(error);
      #endif
      return -1;
   }
   asc_size = abs(g_ilimit - text_height(font));
   while (*string != '\0')
   {
      if((*string & 0x80) == 0)/* 判断是否是扩展ASCII */
      {
         asc_out(*string, x, y + asc_size, color);
         x += 8 + blank;
         string++;
      }
      else
      {
         char slant = 0;
         fpos = (((unsigned char)*string-0xa1 - g_start)*94 + ((unsigned char)*(string+1)-0xa1))*(long)g_hz_size;
         fseek(hzk_p, fpos, SEEK_SET);
         fread(hz_buf, g_hz_size, 1, hzk_p);

         if (g_hz_size <= 32) /*16点阵以下的字库*/
         {
            for (i = 0; i < g_ilimit; ++i)
            {
               slant += g_slant;
               for (j = 0; j < g_jlimit; ++j)
               {
                  for (k = 0; k < 8; ++k)
                  {
                     if (((hz_buf[(i << 1) + j] >> 7 - k)) & 1)
                        dot(x + (j << 3) + k + slant, y + i, color);
                     else if (g_text_bg >= 0)
                        dot(x + (j << 3) + k + slant, y + i, g_text_bg);
                  }
               }
            }
         }
         else /*24点阵以上的字库*/
         {
            for (i = 0; i < g_ilimit; ++i)
            {
               for (j = 0; j < g_jlimit; ++j)
               {
                  for (k = 1; k <= 8; ++k)
                  {
                     if ( (hz_buf[i * 3 + j] << k - 1) & 0x80 )
                        dot(x + i, y + (j << 3) + k - 1, color);
                     else if (g_text_bg >= 0)
                        dot(x + i, y + (j << 3) + k - 1, g_text_bg);
                  }
               }
            }
         }
         x += (g_ilimit + blank);
         string += 2;
      }
      if (text_callback)
         text_callback();
   }
   fclose(hzk_p);
   return 0;
}

void set_cn_font(char cn_size, char *cn_font){
   g_jlimit = 2;
   g_start  = 0;

   g_ilimit = cn_size;
   switch(cn_size)
   {
      case S12X12:
      g_hz_size= 24;
      g_hz_font= cn_font;
      g_hz_width= 12;
      break;
      case S16X16:
      g_hz_size= 32;
      g_hz_font= cn_font;
      g_hz_width= 16;
      break;
      case S24X24:
      g_jlimit = 3;
      g_hz_size= 72;
      g_start  = 15;
      g_hz_width= 24;
      g_hz_font= cn_font;
      break;
      default:
      g_ilimit = S16X16;
      g_hz_size= 32;
      g_hz_width= 16;
      g_hz_font= cn_font;
      break;
   }
}

void set_cn_size(char cn_size){
   switch(cn_size)
   {
      case S12X12:
      set_cn_font(S12X12, "HZK12");
      break;
      case S16X16:
      set_cn_font(S16X16, "HZK16");
      break;
      case S24X24:
      set_cn_font(S24X24, "HZK24S");
      break;
      default:
      set_cn_font(S16X16, "HZK16");
      break;
   }
}

int neo_printf(int x, int y, char *format, ...){
   char buffer[256];
   va_list argptr;
   int count;
   char err_m;

   va_start(argptr, format);
   count = vsprintf(buffer, format, argptr);
   va_end(argptr);

   #ifndef NEO_error_unused
   err_m = get_err_method();
   err_method(0);
   #endif
   if (put_chinese(buffer, x, y, g_str_color, g_blank))
      textout(buffer, x, y);
   #ifndef NEO_error_unused
   err_method(err_m);
   #endif
   return (count);
}

BITMAP *get_str_bitmap(char *string, int fc, int bc){
   BITMAP *str_bitmap;
   FILE *hzk_p;
   long fpos;       /*汉字在字库文件中的偏移*/
   int  i, j, k, l, x = 0, y = 0;
   int asc_size = 0;/*用来或得当前英文字符的高*/
   int count;
   char hz_buf[72]; /*汉字字模缓冲区，目前能支持24X24点阵字符的存放*/

   if (count = strlen(string))
   {
      count % 2 ? count++ : 0;
      str_bitmap = create_bitmap((count >> 1) * (g_hz_width) + count, g_hz_width);
      if (str_bitmap)
         clear(str_bitmap);
      else
         return NULL;
   }   
      
   if ((hzk_p = fopen(g_hz_font, "rb+"))==NULL)/* 打开24点阵字库文件 */
   {
      #ifndef NEO_sys_report_error_unused
      Errinfo_t error = {"put_chinese", NO_FILE, 1};
      throw_error(error);
      #endif
      return NULL;
   }
   asc_size = abs(g_ilimit - text_height(font));
   while (*string != '\0')
   {
      if((*string & 0x80) == 0)/* 判断是否是扩展ASCII */
      {
         char str[2];
         str[0] = *string;
         str[1] = '\0';
         textout_ex(str_bitmap, font, str, x, 0, fc, bc);         
         x += 8 + 1/*+ blank*/;
         string++;
      }
      else
      {
         char slant = 0;
         fpos = (((unsigned char)*string-0xa1 - g_start)*94 + ((unsigned char)*(string+1)-0xa1))*(long)g_hz_size;
         fseek(hzk_p, fpos, SEEK_SET);
         fread(hz_buf, g_hz_size, 1, hzk_p);

         if (g_hz_size <= 32) /*16点阵以下的字库*/
         {
            for (i = 0; i < g_ilimit; ++i)
            {
               slant += g_slant;
               for (j = 0; j < g_jlimit; ++j)
               {
                  for (k = 0; k < 8; ++k)
                  {
                     if (((hz_buf[(i << 1) + j] >> 7 - k)) & 1)
                        putpixel(str_bitmap, x + (j << 3) + k + slant, y + i, fc);
                     else/* if (g_text_bg >= 0)*/
                        putpixel(str_bitmap, x + (j << 3) + k + slant, y + i, bc);
                  }
               }
            }
         }
         else /*24点阵以上的字库*/
         {
            for (i = 0; i < g_ilimit; ++i)
            {
               for (j = 0; j < g_jlimit; ++j)
               {
                  for (k = 1; k <= 8; ++k)
                  {
                     if ( (hz_buf[i * 3 + j] << k - 1) & 0x80 )
                        putpixel(str_bitmap, x + i, y + (j << 3) + k - 1, fc);
                     else/* if (g_text_bg >= 0)*/
                        putpixel(str_bitmap, x + i, y + (j << 3) + k - 1, bc);
                  }
               }
            }
         }
         x += (g_ilimit + 1/*+ blank*/);
         string += 2;
      }
   }

   return str_bitmap;
} 

int string_out(char *str, int x, int y)
{
   return put_chinese(str, x, y, g_str_color, g_blank);
}

int random (int high){  /* get a random number between low and high, inclusively */
   if (high < 0) return (0); /* don't divide by zero */
   return (rand() % (high + 1));
}

void neo_message(char *message, ...)
{
   allegro_message(message);
}

#endif