tc006vcu.c

十七种模拟器源代码 非常有用的作课程设计不可缺少的

         MAP_PALETTE_MAPPED_NEW(
            RAM_BG[zz]|pal_ofs,
            16,
            map
         );

         ta = ReadWord(&RAM_BG[zz+2]) & tile_mask;
         switch(RAM_BG[zz+1]&0xC0){
            case 0x00: Draw16x16_64_Mapped_ZoomXY(&RAM_GFX[ta<<8],x,y,map,txx,tyy);        break;
            case 0x40: Draw16x16_64_Mapped_ZoomXY_FlipY(&RAM_GFX[ta<<8],x,y,map,txx,tyy);  break;
            case 0x80: Draw16x16_64_Mapped_ZoomXY_FlipX(&RAM_GFX[ta<<8],x,y,map,txx,tyy);  break;
            case 0xC0: Draw16x16_64_Mapped_ZoomXY_FlipXY(&RAM_GFX[ta<<8],x,y,map,txx,tyy); break;
         }

      zz=(zz&0xF80)|((zz+4)&0x7F);
   }
   zz = zzzz = (zzzz+0x80)&0xFFF;
   }

   }

   }
   else{

   zoom   = RAM_SCR[0x10];
   zoom_2 = RAM_SCR[0x11];

   if((zoom<=0x7F)){

      MAKE_SCROLL_512x512_4_16(
         scr_x - (ReadWord(&RAM_SCR[0])),
         scr_y + (ReadWord(&RAM_SCR[8]))
      );

      START_SCROLL_512x512_4_16(bmp_x,bmp_y,bmp_w,bmp_h);

      ta = ReadWord(&RAM_BG[zz+2]) & tile_mask;

      if(RAM_MSK[ta]!=0){			// No pixels; skip

         MAP_PALETTE_MAPPED_NEW(
            RAM_BG[zz]|pal_ofs,
            16,
            map
         );

         if(RAM_MSK[ta]==1){			// Some pixels; trans
            switch(RAM_BG[zz+1]&0xC0){
               case 0x00: Draw16x16_Trans_Mapped_Rot(&RAM_GFX[ta<<8],x,y,map);        break;
               case 0x40: Draw16x16_Trans_Mapped_FlipY_Rot(&RAM_GFX[ta<<8],x,y,map);  break;
               case 0x80: Draw16x16_Trans_Mapped_FlipX_Rot(&RAM_GFX[ta<<8],x,y,map);  break;
               case 0xC0: Draw16x16_Trans_Mapped_FlipXY_Rot(&RAM_GFX[ta<<8],x,y,map); break;
            }
         }
         else{					// all pixels; solid
            switch(RAM_BG[zz+1]&0xC0){
               case 0x00: Draw16x16_Mapped_Rot(&RAM_GFX[ta<<8],x,y,map);        break;
               case 0x40: Draw16x16_Mapped_FlipY_Rot(&RAM_GFX[ta<<8],x,y,map);  break;
               case 0x80: Draw16x16_Mapped_FlipX_Rot(&RAM_GFX[ta<<8],x,y,map);  break;
               case 0xC0: Draw16x16_Mapped_FlipXY_Rot(&RAM_GFX[ta<<8],x,y,map); break;
            }
         }

      }

      END_SCROLL_512x512_4_16();

   }
   else{

   z_data_x = &z_step[(zoom-0x80)<<5];
   z_data_y = &z_step[(zoom-0x80)<<5];
   tx=0;
   ty=0;

   zzz = scr_x - (ReadWord(&RAM_SCR[0]));

   zzzz=(zzz&0x1F0)>>2;
   x16=zzz&15;

   zzz = scr_y + (ReadWord(&RAM_SCR[8]));

   zzzz|=(zzz&0x1F0)<<3;
   y16=zzz&15;

   //x16 = (x16 * z_data_x[tx])/16;
   //y16 = (y16 * z_data_y[ty])/16;

   x16 = (x16 * (zoom-0x40))/0x40;
   y16 = (y16 * (zoom-0x40))/0x40;

   zz=zzzz;
   for(y=(48-y16);y<(224+48);y+=tyy){

   tyy = z_data_y[ty];
   ty  = (ty+1)&3;

   for(x=(48-x16);x<(320+48);x+=txx){

      txx = z_data_x[tx];
      tx  = (tx+1)&3;

      ta = ReadWord(&RAM_BG[zz+2]) & tile_mask;

      if(RAM_MSK[ta]!=0){			// No pixels; skip

         MAP_PALETTE_MAPPED_NEW(
            RAM_BG[zz]|pal_ofs,
            16,
            map
         );
         if(RAM_MSK[ta]==1){			// Some pixels; trans
            switch(RAM_BG[zz+1]&0xC0){
               case 0x00: Draw16x16_64_Trans_Mapped_ZoomXY_Rot(&RAM_GFX[ta<<8],x,y,map,txx,tyy);        break;
               case 0x40: Draw16x16_64_Trans_Mapped_ZoomXY_FlipY_Rot(&RAM_GFX[ta<<8],x,y,map,txx,tyy);  break;
               case 0x80: Draw16x16_64_Trans_Mapped_ZoomXY_FlipX_Rot(&RAM_GFX[ta<<8],x,y,map,txx,tyy);  break;
               case 0xC0: Draw16x16_64_Trans_Mapped_ZoomXY_FlipXY_Rot(&RAM_GFX[ta<<8],x,y,map,txx,tyy); break;
            }
         }
         else{					// all pixels; solid
            switch(RAM_BG[zz+1]&0xC0){
               case 0x00: Draw16x16_64_Mapped_ZoomXY_Rot(&RAM_GFX[ta<<8],x,y,map,txx,tyy);        break;
               case 0x40: Draw16x16_64_Mapped_ZoomXY_FlipY_Rot(&RAM_GFX[ta<<8],x,y,map,txx,tyy);  break;
               case 0x80: Draw16x16_64_Mapped_ZoomXY_FlipX_Rot(&RAM_GFX[ta<<8],x,y,map,txx,tyy);  break;
               case 0xC0: Draw16x16_64_Mapped_ZoomXY_FlipXY_Rot(&RAM_GFX[ta<<8],x,y,map,txx,tyy); break;
            }
         }

      }

      zz=(zz&0xF80)|((zz+4)&0x7F);
   }
   zz = zzzz = (zzzz+0x80)&0xFFF;
   }

   }

   }

   tc0006vcu_layer_count ++;
}

void tc0006vcu_render_layer_1024(int layer)
{
   int zoom,zoom_2,tx,ty,txx,tyy;
   UINT8 *z_data_x,*z_data_y;

   int x,y,x16,y16,zzzz,zzz,zz,ta;
   UINT8 *map;

   UINT8 *RAM_BG;
   UINT8 *RAM_SCR;
   UINT8 *RAM_GFX;
   UINT8 *RAM_MSK;
   mapper_direct *pal_map;
   UINT32 bmp_x,bmp_y,bmp_w,bmp_h;
   UINT32 scr_x, scr_y, pal_ofs, tile_mask;

   if(!check_layer_enabled(layer_id_data[layer]))
       return;

   RAM_BG    = tc0006vcu.RAM     + (layer * 0x2000);
   RAM_SCR   = tc0006vcu.RAM_SCR + (layer * 0x0002);
   RAM_GFX   = tc0006vcu.GFX_BG;
   RAM_MSK   = tc0006vcu.GFX_BG_MASK;
   pal_map   = tc0006vcu.mapper;
   pal_ofs   = tc0006vcu.pal_ofs;
   tile_mask = tc0006vcu.tile_mask;

   bmp_x = tc0006vcu.bmp_x;
   bmp_y = tc0006vcu.bmp_y;
   bmp_w = tc0006vcu.bmp_w;
   bmp_h = tc0006vcu.bmp_h;
   scr_x = tc0006vcu.scr_x[layer];
   scr_y = tc0006vcu.scr_y[layer];


   if(tc0006vcu_layer_count == 0){

   zoom   = RAM_SCR[0x10];
   zoom_2 = RAM_SCR[0x11];

   if((zoom<=0x7F)){

      MAKE_SCROLL_1024x512_4_16(
         scr_x - (ReadWord(&RAM_SCR[0])),
         scr_y + (ReadWord(&RAM_SCR[8]))
      );

      START_SCROLL_1024x512_4_16(bmp_x,bmp_y,bmp_w,bmp_h);

         MAP_PALETTE_MAPPED_NEW(
            (RAM_BG[zz]|pal_ofs),
            16,
            map
         );

         ta = ReadWord(&RAM_BG[zz+2]) & tile_mask;

         switch(RAM_BG[zz+1]&0xC0){
            case 0x00: Draw16x16_Mapped_Rot(&RAM_GFX[ta<<8],x,y,map);        break;
            case 0x40: Draw16x16_Mapped_FlipY_Rot(&RAM_GFX[ta<<8],x,y,map);  break;
            case 0x80: Draw16x16_Mapped_FlipX_Rot(&RAM_GFX[ta<<8],x,y,map);  break;
            case 0xC0: Draw16x16_Mapped_FlipXY_Rot(&RAM_GFX[ta<<8],x,y,map); break;
         }

      END_SCROLL_1024x512_4_16();

   }
   else{

   z_data_x = &z_step[(zoom-0x80)<<5];
   z_data_y = &z_step[(zoom-0x80)<<5];
   tx=0;
   ty=0;

   zzz = scr_x - (ReadWord(&RAM_SCR[0]));

   zzzz=(zzz&0x3F0)>>2;
   x16=zzz&15;

   zzz = scr_y + (ReadWord(&RAM_SCR[8]));

   zzzz|=(zzz&0x1F0)<<4;
   y16=zzz&15;

   x16 = (x16 * z_data_x[tx])/16;
   y16 = (y16 * z_data_y[ty])/16;

   zz=zzzz;
   for(y=(48-y16);y<(224+48);y+=tyy){

   tyy = z_data_y[ty];
   ty  = (ty+1)&3;

   for(x=(48-x16);x<(320+48);x+=txx){

      txx = z_data_x[tx];
      tx  = (tx+1)&3;

         MAP_PALETTE_MAPPED_NEW(
            RAM_BG[zz]|pal_ofs,
            16,
            map
         );

         ta = ReadWord(&RAM_BG[zz+2]) & tile_mask;

         switch(RAM_BG[zz+1]&0xC0){
            case 0x00: Draw16x16_64_Mapped_ZoomXY(&RAM_GFX[ta<<8],x,y,map,txx,tyy);        break;
            case 0x40: Draw16x16_64_Mapped_ZoomXY_FlipY(&RAM_GFX[ta<<8],x,y,map,txx,tyy);  break;
            case 0x80: Draw16x16_64_Mapped_ZoomXY_FlipX(&RAM_GFX[ta<<8],x,y,map,txx,tyy);  break;
            case 0xC0: Draw16x16_64_Mapped_ZoomXY_FlipXY(&RAM_GFX[ta<<8],x,y,map,txx,tyy); break;
         }

      zz=(zz&0x1F00)|((zz+4)&0xFF);
   }
   zz = zzzz = (zzzz+0x100)&0x1FFF;
   }

   }

   }
   else{

   zoom   = RAM_SCR[0x10];
   zoom_2 = RAM_SCR[0x11];

   if((zoom<=0x7F)){

      MAKE_SCROLL_1024x512_4_16(
         scr_x - (ReadWord(&RAM_SCR[0])),
         scr_y + (ReadWord(&RAM_SCR[8]))
      );

      START_SCROLL_1024x512_4_16(bmp_x,bmp_y,bmp_w,bmp_h);

      ta = ReadWord(&RAM_BG[zz+2]) & tile_mask;

      if(RAM_MSK[ta]!=0){			// No pixels; skip

         MAP_PALETTE_MAPPED_NEW(
            RAM_BG[zz]|pal_ofs,
            16,
            map
         );

         if(RAM_MSK[ta]==1){			// Some pixels; trans
            switch(RAM_BG[zz+1]&0xC0){
               case 0x00: Draw16x16_Trans_Mapped_Rot(&RAM_GFX[ta<<8],x,y,map);        break;
               case 0x40: Draw16x16_Trans_Mapped_FlipY_Rot(&RAM_GFX[ta<<8],x,y,map);  break;
               case 0x80: Draw16x16_Trans_Mapped_FlipX_Rot(&RAM_GFX[ta<<8],x,y,map);  break;
               case 0xC0: Draw16x16_Trans_Mapped_FlipXY_Rot(&RAM_GFX[ta<<8],x,y,map); break;
            }
         }
         else{					// all pixels; solid
            switch(RAM_BG[zz+1]&0xC0){
               case 0x00: Draw16x16_Mapped_Rot(&RAM_GFX[ta<<8],x,y,map);        break;
               case 0x40: Draw16x16_Mapped_FlipY_Rot(&RAM_GFX[ta<<8],x,y,map);  break;
               case 0x80: Draw16x16_Mapped_FlipX_Rot(&RAM_GFX[ta<<8],x,y,map);  break;
               case 0xC0: Draw16x16_Mapped_FlipXY_Rot(&RAM_GFX[ta<<8],x,y,map); break;
            }
         }

      }

      END_SCROLL_1024x512_4_16();

   }
   else{

   z_data_x = &z_step[(zoom-0x80)<<5];
   z_data_y = &z_step[(zoom-0x80)<<5];
   tx=0;
   ty=0;

   zzz = scr_x - (ReadWord(&RAM_SCR[0]));

   zzzz=(zzz&0x3F0)>>2;
   x16=zzz&15;

   zzz = scr_y + (ReadWord(&RAM_SCR[8]));

   zzzz|=(zzz&0x1F0)<<4;
   y16=zzz&15;

   //x16 = (x16 * z_data_x[tx])/16;
   //y16 = (y16 * z_data_y[ty])/16;

   x16 = (x16 * (zoom-0x40))/0x40;
   y16 = (y16 * (zoom-0x40))/0x40;

   zz=zzzz;
   for(y=(48-y16);y<(224+48);y+=tyy){

   tyy = z_data_y[ty];
   ty  = (ty+1)&3;

   for(x=(48-x16);x<(320+48);x+=txx){

      txx = z_data_x[tx];
      tx  = (tx+1)&3;

      ta = ReadWord(&RAM_BG[zz+2]) & tile_mask;

      if(RAM_MSK[ta]!=0){			// No pixels; skip

         MAP_PALETTE_MAPPED_NEW(
            RAM_BG[zz]|pal_ofs,
            16,
            map
         );

         if(RAM_MSK[ta]==1){			// Some pixels; trans
            switch(RAM_BG[zz+1]&0xC0){
               case 0x00: Draw16x16_64_Trans_Mapped_ZoomXY(&RAM_GFX[ta<<8],x,y,map,txx,tyy);        break;
               case 0x40: Draw16x16_64_Trans_Mapped_ZoomXY_FlipY(&RAM_GFX[ta<<8],x,y,map,txx,tyy);  break;
               case 0x80: Draw16x16_64_Trans_Mapped_ZoomXY_FlipX(&RAM_GFX[ta<<8],x,y,map,txx,tyy);  break;
               case 0xC0: Draw16x16_64_Trans_Mapped_ZoomXY_FlipXY(&RAM_GFX[ta<<8],x,y,map,txx,tyy); break;
            }
         }
         else{					// all pixels; solid
            switch(RAM_BG[zz+1]&0xC0){
               case 0x00: Draw16x16_64_Mapped_ZoomXY(&RAM_GFX[ta<<8],x,y,map,txx,tyy);        break;
               case 0x40: Draw16x16_64_Mapped_ZoomXY_FlipY(&RAM_GFX[ta<<8],x,y,map,txx,tyy);  break;
               case 0x80: Draw16x16_64_Mapped_ZoomXY_FlipX(&RAM_GFX[ta<<8],x,y,map,txx,tyy);  break;
               case 0xC0: Draw16x16_64_Mapped_ZoomXY_FlipXY(&RAM_GFX[ta<<8],x,y,map,txx,tyy); break;
            }
         }

      }

      zz=(zz&0x1F00)|((zz+4)&0xFF);
   }
   zz = zzzz = (zzzz+0x100)&0x1FFF;
   }

   }

   }

   tc0006vcu_layer_count ++;
}

void tc0006vcu_render_fg0(void)
{
   int x,y,x16,y16,zzzz,zzz,zz,ta;
   UINT8 *map;

   UINT8 *RAM_BG;
   UINT8 *RAM_SCR;
   UINT8 *RAM_GFX;
   UINT8 *RAM_MSK;
   mapper_direct *pal_map;
   UINT32 bmp_x,bmp_y,bmp_w,bmp_h;
   UINT32 scr_x,scr_y, pal_ofs;

   if(!check_layer_enabled(layer_id_data[4]))
       return;

   tc0006vcu_update_gfx_fg0();

   RAM_BG    = tc0006vcu.RAM + 0x0C000;
   RAM_SCR   = tc0006vcu.RAM_SCR + 0x00018;
   RAM_GFX   = tc0006vcu.GFX_FG;
   RAM_MSK   = tc0006vcu.GFX_FG_MASK;
   pal_map   = tc0006vcu.mapper;
   pal_ofs   = tc0006vcu.pal_ofs;

   bmp_x = tc0006vcu.bmp_x;
   bmp_y = tc0006vcu.bmp_y;
   bmp_w = tc0006vcu.bmp_w;
   bmp_h = tc0006vcu.bmp_h;
   scr_x = tc0006vcu.scr_x[4];
   scr_y = tc0006vcu.scr_y[4];

      MAKE_SCROLL_512x512_2_8(
         scr_x - (ReadWord(&RAM_SCR[0])),
         scr_y - (ReadWord(&RAM_SCR[2]))
      );

      START_SCROLL_512x512_2_8(bmp_x,bmp_y,bmp_w,bmp_h);

      ta=RAM_BG[zz];

      if(RAM_MSK[ta]!=0){			// No pixels; skip

         MAP_PALETTE_MAPPED_NEW(
            ((RAM_BG[1+zz]&0x3F)|pal_ofs),
            16,
            map
         );

         if(RAM_MSK[ta]==1){			// Some pixels; trans
            switch(RAM_BG[1+zz]&0xC0){
               case 0x00: Draw8x8_Trans_Mapped_Rot(&RAM_GFX[ta<<6],x,y,map);        break;
               case 0x40: Draw8x8_Trans_Mapped_FlipY_Rot(&RAM_GFX[ta<<6],x,y,map);  break;
               case 0x80: Draw8x8_Trans_Mapped_FlipX_Rot(&RAM_GFX[ta<<6],x,y,map);  break;
               case 0xC0: Draw8x8_Trans_Mapped_FlipXY_Rot(&RAM_GFX[ta<<6],x,y,map); break;
            }
         }
         else{					// all pixels; solid
            switch(RAM_BG[1+zz]&0xC0){
               case 0x00: Draw8x8_Mapped_Rot(&RAM_GFX[ta<<6],x,y,map);        break;
               case 0x40: Draw8x8_Mapped_FlipY_Rot(&RAM_GFX[ta<<6],x,y,map);  break;
               case 0x80: Draw8x8_Mapped_FlipX_Rot(&RAM_GFX[ta<<6],x,y,map);  break;
               case 0xC0: Draw8x8_Mapped_FlipXY_Rot(&RAM_GFX[ta<<6],x,y,map); break;
            }
         }

      }

      END_SCROLL_512x512_2_8();

   tc0006vcu_layer_count ++;
}