ico.h

c游戏编程从入门到精通_全部源代码和文档

#define ICO_SIDE 32

typedef struct RGB_ico_typ
{
unsigned char blue;
unsigned char green;
unsigned char red;
unsigned char reserved;
}RGB_ico,*RGB_ico_ptr;

typedef struct Ico_file_head
{
	short uo_0,u2_1;
	short image_count;
}file_head,*file_head_ptr;

typedef struct Ico_file_dir
{
	char  width,height;
	short num_colors;
	short u4_0,u6_0;
	long  ico_size;
	long  icon_offset;
}file_dir,*file_dir_ptr;

typedef struct Ico_head
{
	long head_size;
	long width,height;
	short planes;
	short bits_per_pixel;
	long compression;
	long image_size;
	short reserved[8];
}ico_head,*ico_head_ptr;

typedef struct ico_picture_typ
	{
	file_head fhead;
	file_dir fdir;
	ico_head ihead;
	RGB_ico palette[16];
	unsigned char map[512];
	unsigned char mask[128];
	char far *buffer;

	} ico_picture, *ico_picture_ptr;

void Set_ICO_Palette_Register(int index,RGB_ico_ptr color)
{
outp(PALETTE_MASK,0xff);
outp(PALETTE_REGISTER_WR,index);
outp(PALETTE_DATA,color->red>>2);
outp(PALETTE_DATA,color->green>>2);
outp(PALETTE_DATA,color->blue>>2);
}


void Get_Palette_Register(int index,RGB_ico_ptr color)
{
outp(PALETTE_MASK,0xff);
outp(PALETTE_REGISTER_RD,index);
color->red=inp(PALETTE_DATA);
color->green=inp(PALETTE_DATA);
color->blue=inp(PALETTE_DATA);

}


void ICO_Load_Screen(char *name,int x,int y)
{
	unsigned char r,g,b;
	int BK = 256,k=0,i,j,old_x=x;
	//read the source information of pattern
	ico_picture ico;
	FILE *fp;


	//open ico file
	fp = fopen(name,"rb");

	//load the head information of ico file
	fread(&ico.fhead,1,sizeof(struct Ico_file_head),fp);

	//load the struct information of ico file
	fread(&ico.fdir,1,sizeof(struct Ico_file_dir),fp);

	//load the head information of ico
	fread(&ico.ihead,1,sizeof(struct Ico_head),fp);

	//load the pattern of ico
	fread(&ico.palette,1,16*sizeof(struct RGB_ico_typ),fp);

	//load the color embattle of ico
	fread(&ico.map,1,512,fp);
	fread(&ico.mask,1,128,fp);
	fclose(fp);

      //	Get_Palette_Register(1,(RGB_color_ptr)&color_1);
	//set new pattern
	for(i=0;i<16;i++)
	{
		//除以4是为了移位

	Set_ICO_Palette_Register(i,(RGB_ico_ptr)&ico.palette[i]);

	}
	for(i=32;i>0;i--)
		for(j=0;j<32;j=j+2)
		{
	video_buffer[((y+i<<8)+(y+i<<6))+x+j]=ico.map[k]>>4;
	video_buffer[((y+i<<8)+(y+i<<6))+x+(j+1)]=ico.map[k++]&0x0f;
		}
	for(i=124;i>=0;i=i-4)
	{
		for(j=i;j<=i+3;j++)
		{
			unsigned char m=0x80;
			for(k=0;k<8;k++)
			{
				if(ico.mask[j]&m)
					video_buffer[((y+1<<8)+(y+1<<6))+x]=BLACK;
				x++;
				m>>=1;
			}
		}
		y++;
		x=old_x;
	}
	fclose(fp);
}

void 	ICO_Init(ico_picture_ptr image)
//申请图像大小的内存空间
{
unsigned int a=(unsigned int)(ICO_SIDE * ICO_SIDE + 1);
if((image->buffer = (char far *)malloc(a))==NULL)
{
   printf("\ncouldn't allocate screen buffer");
 exit(1);
 }
}


void ICO_Load(char *name,ico_picture_ptr ico)
{
	unsigned char r,g,b;
	int BK = 256,k=0,i,j,x=0,y=0;
	//read the source information of pattern
	FILE *fp;


	//open ico file
	fp = fopen(name,"rb");

	//load the head information of ico file
	fread(&ico->fhead,1,sizeof(struct Ico_file_head),fp);

	//load the struct information of ico file
	fread(&ico->fdir,1,sizeof(struct Ico_file_dir),fp);

	//load the head information of ico
	fread(&ico->ihead,1,sizeof(struct Ico_head),fp);

	//load the pattern of ico
	fread(&ico->palette,1,16*sizeof(struct RGB_ico_typ),fp);

	//load the color embattle of ico
	fread(&ico->map,1,512,fp);
	fread(&ico->mask,1,128,fp);
	fclose(fp);

      //	Get_Palette_Register(1,(RGB_color_ptr)&color_1);
	//set new pattern
	for(i=0;i<16;i++)
	{
		//除以4是为了移位

	Set_ICO_Palette_Register(i,(RGB_ico_ptr)&ico->palette[i]);

	}
	for(i=31;i>=0;i--)
		for(j=0;j<32;j=j+2)
		{
			ico->buffer[i*32+j]=ico->map[k]>>4;
			ico->buffer[i*32+(j+1)]=ico->map[k++]&0x0f;
		}
	for(i=124;i>=0;i=i-4)
	{
		for(j=i;j<=i+3;j++)
		{
			unsigned char m=0x80;
			for(k=0;k<8;k++)
			{
				if(ico->mask[j]&m)
					ico->buffer[y*32+x]=BLACK;
				x++;
				m>>=1;
			}
		}
		y++;
		x=0;
	}
	fclose(fp);
}

void ICO_Show_Buffer(ico_picture_ptr image,int x,int y)
//将内存中的图像显示
{
int index;
char far *data;
data=image->buffer;
for(index=0;index<ICO_SIDE;index++)
	memcpy((char far *)&video_buffer[y*SCREEN_WIDTH+x+index*SCREEN_WIDTH],(char far *)&image->buffer[index*ICO_SIDE],ICO_SIDE);
}