T3D图形库DDraw及图形算法头文件部分
- /*2008.9.15
- T3D图形库
- ——<<windows游戏
- 编程大师技巧>>
- */
- //DDraw_lib.h
- #ifndef DDraw_lib
- #define DDraw_lib
- // DEFINES ////////////////////////////////////////////////
- //默认屏幕值，将被DDraw_Init()调用
- #define SCREEN_WIDTH 640 //屏宽
- #define SCREEN_HEIGHT 480 //屏高
- #define SCREEN_BPP 8 //屏幕色深
- #define MAX_COLORS_PALETTE 256 //最大调色板项数
- #define DEFAULT_PALETTE_FILE "PALDATA2.PAL" //默认调色板文件
- //全屏/窗口模式标志
- #define SCREEN_FULLSCREEN 0
- #define SCREEN_WINDOWED 1
- //位图
- #define BITMAP_ID 0x4D42
- #define BITMAP_STATE_DEAD 0
- #define BITMAP_STATE_ALIVE 1
- #define BITMAP_STATE_DYING 2
- #define BITMAP_ATTR_LOADED 128
- //位图提取模式
- #define BITMAP_EXTRACT_MODE_CELL 0 //单元模式(模板化)
- #define BITMAP_EXTRACT_MODE_ABS 1 //绝对模式
- //像素格式
- #define DD_PIXEL_FORMAT8 8
- #define DD_PIXEL_FORMAT555 15
- #define DD_PIXEL_FORMAT565 16
- #define DD_PIXEL_FORMAT888 24
- #define DD_PIXEL_FORMATALPHA 32
- //BOBs(子画面)
- #define BOB_STATE_DEAD 0 // 死亡
- #define BOB_STATE_ALIVE 1 // 存在
- #define BOB_STATE_DYING 2 // 正在死亡
- #define BOB_STATE_ANIM_DONE 1 // 动画状态
- #define MAX_BOB_FRAMES 64 // 最多64帧
- #define MAX_BOB_ANIMATIONS 16 // 最多16个动画
- //BOB属性
- #define BOB_ATTR_SINGLE_FRAME 1 // bob只有1帧
- #define BOB_ATTR_MULTI_FRAME 2 // bob有多个帧
- #define BOB_ATTR_MULTI_ANIM 4 // bob有多个动画
- #define BOB_ATTR_ANIM_ONE_SHOT 8 // bob只播放一次一次
- #define BOB_ATTR_VISIBLE 16 // bob对象可见
- #define BOB_ATTR_BOUNCE 32 // bob边界动作：反弹
- #define BOB_ATTR_WRAPAROUND 64 // bob边界动作：回绕
- #define BOB_ATTR_LOADED 128 // bob已被加载
- #define BOB_ATTR_CLONE 256 // bob是克隆的
- //屏幕过渡命令
- #define SCREEN_DARKNESS 0 // 变暗
- #define SCREEN_WHITENESS 1 // 变亮
- #define SCREEN_SWIPE_X 2 // 横向刷新
- #define SCREEN_SWIPE_Y 3 // 纵向刷新
- #define SCREEN_DISOLVE 4 // 像素溶解
- #define SCREEN_SCRUNCH 5 // 压缩
- #define SCREEN_BLUENESS 6 // 变蓝
- #define SCREEN_REDNESS 7 // 变红
- #define SCREEN_GREENNESS 8 // 变绿
- //颜色(灯)闪烁
- #define BLINKER_ADD 0 // 增加一个闪烁(灯)
- #define BLINKER_DELETE 1 // 删除一个闪烁(灯)
- #define BLINKER_UPDATE 2 // 更新一个闪烁(灯)
- #define BLINKER_RUN 3 // 正常运行
- //pi
- #define PI ((float)3.141592654f)
- #define PI2 ((float)6.283185307f)
- #define PI_DIV_2 ((float)1.570796327f)
- #define PI_DIV_4 ((float)0.785398163f)
- #define PI_INV ((float)0.318309886f) //pi/10
- // fixed point mathematics constants
- #define FIXP16_SHIFT 16
- #define FIXP16_MAG 65536
- #define FIXP16_DP_MASK 0x0000ffff
- #define FIXP16_WP_MASK 0xffff0000
- #define FIXP16_ROUND_UP 0x00008000
- // MACROS /////////////////////////////////////////////////
- //检查键盘按键状态
- #define KEY_DOWN(vk_code) ((GetAsyncKeyState(vk_code) & 0x8000) ? 1 : 0)
- #define KEY_UP(vk_code) ((GetAsyncKeyState(vk_code) & 0x8000) ? 0 : 1)
- //创造16位颜色值(1.5.5.5)
- #define _RGB16BIT555(r,g,b) ((b & 31) + ((g & 31) << 5) + ((r & 31) << 10))
- //创造16位颜色值(5.6.5)
- #define _RGB16BIT565(r,g,b) ((b & 31) + ((g & 63) << 5) + ((r & 31) << 11))
- //创造24位颜色值(8.8.8)
- #define _RGB24BIT(a,r,g,b) ((b) + ((g) << 8) + ((r) << 16) )
- //创造32位颜色值(8.8.8.8)
- #define _RGB32BIT(a,r,g,b) ((b) + ((g) << 8) + ((r) << 16) + ((a) << 24))
- //位操控
- #define SET_BIT(word,bit_flag) ((word)=((word)|(bit_flag)))
- #define RESET_BIT(word,bit_flag) ((word)=((word)&(~bit_flag)))
- //初始化结构体
- #define DDRAW_INIT_STRUCT(ddstruct) { memset(&ddstruct,0,sizeof(ddstruct));ddstruct.dwSize=sizeof(ddstruct); }
- //最小/大值
- #define MIN(a,b) (((a)<(b))?(a):(b))
- #define MAX(a,b) (((a)>(b))?(a):(b))
- //交换值
- #define SWAP(a,b,t) { t=a;a=b;b=t; }
- //一些数学宏
- #define DEG_TO_RAD(ang) ((ang)*PI/180.0) //角度转弧度
- #define RAD_TO_DEG(rads) ((rads)*180.0/PI) //弧度转角度
- //随机取(x,y)中的一个值
- #define RAD_RANGE(x,y) ( (x) + (rand()%((y)-(x)+1)) )
- // TYPES //////////////////////////////////////////////////
- // 基本无符号类型
- typedef unsigned short USHORT;
- typedef unsigned short WORD;
- typedef unsigned char UCHAR;
- typedef unsigned char BYTE;
- typedef unsigned int QUAD;
- typedef unsigned int UINT;
- //存放位图信息的结构体
- typedef struct BITMAP_FILE_TAG
- {
- BITMAPFILEHEADER bitmapfileheader; // 位图文件头
- BITMAPINFOHEADER bitmapinfoheader; // 位图信息头
- PALETTEENTRY palette[256]; // 调色板项
- UCHAR *buffer; // 指针指向位图数据
- } BITMAP_FILE, *BITMAP_FILE_PTR;
- // BOB对象结构体
- typedef struct BOB_TYP
- {
- int state; // 常规状态
- int anim_state; // 动画是否可用
- int attr; // BOB属性
- float x,y; //初始位置
- float xv,yv; //速度
- int width, height; // 宽/高
- int width_fill; // 宽度填充(使宽度为8的倍数)
- int bpp; // 色深
- int counter_1; // 常规计数器
- int counter_2;
- int max_count_1;
- int max_count_2;
- int varsI[16]; //整数栈
- float varsF[16]; //浮点数栈
- int curr_frame; // 当前帧
- int num_frames; // 总帧数
- int curr_animation; // 当前动画索引
- int anim_counter; // 计数器
- int anim_index; // 动画内的帧索引
- int anim_count_max; // 在动画前须达到的数
- int *animations[MAX_BOB_ANIMATIONS]; // 动画序列
- LPDIRECTDRAWSURFACE7 images[MAX_BOB_FRAMES]; // DD 表面
- } BOB, *BOB_PTR;
- //位图数据图像结构体
- typedef struct BITMAP_IMAGE_TYP
- {
- int state;
- int attr;
- int x,y;
- int width,height;
- int num_bytes;
- int bpp;
- UCHAR* buffer;
- }BITMAP_IMAGE,*BITMAP_IMAGE_PTR;
- // 闪烁(灯)结构体
- typedef struct BLINKER_TYP
- {
- //需设置成员
- int color_index; // 颜色索引
- PALETTEENTRY on_color; // RGB值(开)
- PALETTEENTRY off_color; // RGB值(关)
- int on_time; // 帧数(开)
- int off_time; // 帧数(关)
- //内部成员
- int counter; // counter for state transitions
- int state; // 灯状态, -1 off, 1 on, 0 dead
- } BLINKER, *BLINKER_PTR;
- //2D向量(整型)
- typedef struct VERTEX2DI_TYP
- {
- int x,y;
- }VERTEX2DI,*VERTEX2DI_PTR;
- //2D向量(浮点型)
- typedef struct VERTEX2DF_TYP
- {
- float x,y;
- }VERTEX2DF,*VERTEX2DF_PTR;
- //2D多边形
- typedef struct POLYGON2D_TYP
- {
- int state;
- int num_verts;
- int x0,y0;
- int xv,yv;
- DWORD color;
- VERTEX2DF* vlist;
- }POLYGON2D,*POLYGON2D_PTR;
- // 矩阵描述
- //3X3矩阵
- typedef struct MATRIX3X3_TYP
- {
- union
- {
- float M[3][3];
- struct
- {
- float M00,M01,M02;
- float M10,M11,M12;
- float M20,M21,M22;
- };
- };
- }MATRIX3X3,*MATRIX3X3_PTR;
- //1X3矩阵
- typedef struct MATRIX1X3_TYP
- {
- union
- {
- float M[3];
- struct
- {
- float M00,M01,M02;
- };
- };
- }MATRIX1X3,*MATRIX1X3_PTR;
- //3X2矩阵
- typedef struct MATRIX3X2_TYP
- {
- union
- {
- float M[3][2];
- struct
- {
- float M00,M01;
- float M10,M11;
- float M20,M21;
- };
- };
- }MATRIX3X2,*MATRIX3X2_PTR;
- //1X2矩阵
- typedef struct MATRIX1X2_TYP
- {
- union
- {
- float M[2];
- struct
- {
- float M00,M01;
- };
- };
- }MATRIX1X2,*MATRIX1X2_PTR;
- // 函数原型(接口) /////////////////////////////////////////////
- // DirectDraw 函数
- int DDraw_Init(int width, int height, int bpp, int windowed=0);
- int DDraw_Shutdown(void);
- LPDIRECTDRAWCLIPPER DDraw_Attach_Clipper(LPDIRECTDRAWSURFACE7 lpdds, int num_rects, LPRECT clip_list);
- LPDIRECTDRAWSURFACE7 DDraw_Create_Surface(int width, int height, int mem_flags=0, USHORT color_key_value=0);
- int DDraw_Flip(void);
- int DDraw_Wait_For_Vsync(void);
- int DDraw_Fill_Surface(LPDIRECTDRAWSURFACE7 lpdds, USHORT color, RECT *client=NULL);
- UCHAR *DDraw_Lock_Surface(LPDIRECTDRAWSURFACE7 lpdds,int *lpitch);
- int DDraw_Unlock_Surface(LPDIRECTDRAWSURFACE7 lpdds);
- UCHAR *DDraw_Lock_Primary_Surface(void);
- int DDraw_Unlock_Primary_Surface(void);
- UCHAR *DDraw_Lock_Back_Surface(void);
- int DDraw_Unlock_Back_Surface(void);
- // BOB 函数
- int Create_BOB(BOB_PTR bob,int x, int y,int width, int height,int num_frames,int attr,
- int mem_flags=0, USHORT color_key_value=0, int bpp=8);
- int Clone_BOB(BOB_PTR source, BOB_PTR dest);
- int Destroy_BOB(BOB_PTR bob);
- int Draw_BOB(BOB_PTR bob, LPDIRECTDRAWSURFACE7 dest);
- int Draw_Scaled_BOB(BOB_PTR bob, int swidth, int sheight,LPDIRECTDRAWSURFACE7 dest);
- int Draw_BOB16(BOB_PTR bob, LPDIRECTDRAWSURFACE7 dest);
- int Draw_Scaled_BOB16(BOB_PTR bob, int swidth, int sheight,LPDIRECTDRAWSURFACE7 dest);
- int Load_Frame_BOB(BOB_PTR bob, BITMAP_FILE_PTR bitmap, int frame, int cx,int cy,int mode);
- int Load_Frame_BOB16(BOB_PTR bob, BITMAP_FILE_PTR bitmap, int frame, int cx,int cy,int mode);
- int Animate_BOB(BOB_PTR bob);
- int Move_BOB(BOB_PTR bob);
- int Load_Animation_BOB(BOB_PTR bob, int anim_index, int num_frames, int *sequence);
- int Set_Pos_BOB(BOB_PTR bob, int x, int y);
- int Set_Vel_BOB(BOB_PTR bob,int xv, int yv);
- int Set_Anim_Speed_BOB(BOB_PTR bob,int speed);
- int Set_Animation_BOB(BOB_PTR bob, int anim_index);
- int Hide_BOB(BOB_PTR bob);
- int Show_BOB(BOB_PTR bob);
- int Collision_BOBS(BOB_PTR bob1, BOB_PTR bob2);
- // 调色板 函数
- int Set_Palette_Entry(int color_index, LPPALETTEENTRY color);
- int Get_Palette_Entry(int color_index, LPPALETTEENTRY color);
- int Load_Palette_From_File(char *filename, LPPALETTEENTRY palette);
- int Save_Palette_To_File(char *filename, LPPALETTEENTRY palette);
- int Save_Palette(LPPALETTEENTRY sav_palette);
- int Set_Palette(LPPALETTEENTRY set_palette);
- int Rotate_Colors(int start_index, int end_index);
- int Blink_Colors(int command, BLINKER_PTR new_light, int id);
- // 位图函数
- int Create_Bitmap(BITMAP_IMAGE_PTR image, int x, int y, int width, int height, int bpp=8);
- int Destroy_Bitmap(BITMAP_IMAGE_PTR image);
- int Draw_Bitmap(BITMAP_IMAGE_PTR source_bitmap,UCHAR *dest_buffer, int lpitch, int transparent);
- int Draw_Bitmap16(BITMAP_IMAGE_PTR source_bitmap,UCHAR *dest_buffer, int lpitch, int transparent);
- int Load_Image_Bitmap(BITMAP_IMAGE_PTR image,BITMAP_FILE_PTR bitmap,int cx,int cy,int mode);
- int Load_Image_Bitmap16(BITMAP_IMAGE_PTR image,BITMAP_FILE_PTR bitmap,int cx,int cy,int mode);
- int Scroll_Bitmap(BITMAP_IMAGE_PTR image, int dx, int dy=0);
- int Copy_Bitmap(BITMAP_IMAGE_PTR dest_bitmap, int dest_x, int dest_y,
- BITMAP_IMAGE_PTR source_bitmap, int source_x, int source_y,
- int width, int height);
- int Flip_Bitmap(UCHAR *image, int bytes_per_line, int height);
- // 位图文件函数
- int Load_Bitmap_File(BITMAP_FILE_PTR bitmap, char *filename);
- int Unload_Bitmap_File(BITMAP_FILE_PTR bitmap);
- // GDI 函数
- int Draw_Text_GDI(char *text, int x,int y,COLORREF color, LPDIRECTDRAWSURFACE7 lpdds);
- int Draw_Text_GDI(char *text, int x,int y,int color, LPDIRECTDRAWSURFACE7 lpdds);
- //误差函数
- int Open_Error_File(char *filename, FILE *fp_override=NULL);
- int Close_Error_File(void);
- int Write_Error(char *string, ...);
- // 2d 8/16位三角形函数
- void Draw_Top_Tri(int x1,int y1,int x2,int y2, int x3,int y3,int color,UCHAR *dest_buffer, int mempitch);
- void Draw_Bottom_Tri(int x1,int y1, int x2,int y2, int x3,int y3,int color,UCHAR *dest_buffer, int mempitch);
- void Draw_Top_Tri16(int x1,int y1,int x2,int y2, int x3,int y3,int color,UCHAR *dest_buffer, int mempitch);
- void Draw_Bottom_Tri16(int x1,int y1, int x2,int y2, int x3,int y3,int color,UCHAR *dest_buffer, int mempitch);
- void Draw_Top_TriFP(int x1,int y1,int x2,int y2, int x3,int y3,int color,UCHAR *dest_buffer, int mempitch);
- void Draw_Bottom_TriFP(int x1,int y1, int x2,int y2, int x3,int y3,int color,UCHAR *dest_buffer, int mempitch);
- void Draw_Triangle_2D(int x1,int y1,int x2,int y2,int x3,int y3,
- int color,UCHAR *dest_buffer, int mempitch);
- void Draw_Triangle_2D16(int x1,int y1,int x2,int y2,int x3,int y3,
- int color,UCHAR *dest_buffer, int mempitch);
- void Draw_TriangleFP_2D(int x1,int y1,int x2,int y2,int x3,int y3,
- int color,UCHAR *dest_buffer, int mempitch);
- inline void Draw_QuadFP_2D(int x0,int y0,int x1,int y1,
- int x2,int y2,int x3, int y3,
- int color,UCHAR *dest_buffer, int mempitch);
- //实用工具函数
- DWORD Get_Clock(void);
- DWORD Start_Clock(void);
- DWORD Wait_Clock(DWORD count);
- int Collision_Test(int x1, int y1, int w1, int h1,
- int x2, int y2, int w2, int h2);
- int Color_Scan(int x1, int y1, int x2, int y2,
- UCHAR scan_start, UCHAR scan_end,
- UCHAR *scan_buffer, int scan_lpitch);
- int Color_Scan16(int x1, int y1, int x2, int y2,
- USHORT scan_start, USHORT scan_end,
- UCHAR *scan_buffer, int scan_lpitch);
- int Scan_Image_Bitmap(BITMAP_FILE_PTR bitmap,
- LPDIRECTDRAWSURFACE7 lpdds,
- int cx,int cy);
- // 2D基本图元函数
- int Draw_Clip_Line(int x0,int y0, int x1, int y1, int color,UCHAR *dest_buffer, int lpitch);
- int Draw_Clip_Line16(int x0,int y0, int x1, int y1, int color,UCHAR *dest_buffer, int lpitch);
- int Clip_Line(int &x1,int &y1,int &x2, int &y2);
- int Draw_Line(int x0, int y0, int x1,int y1, int color,UCHAR *vb_start,int lpitch);
- int Draw_Line16(int x0, int y0, int x1,int y1, int color,UCHAR *vb_start,int lpitch);
- int Draw_Pixel(int x, int y,int color,UCHAR *video_buffer, int lpitch);
- int Draw_Pixel16(int x, int y,int color,UCHAR *video_buffer, int lpitch);
- int Draw_Rectangle(int x1, int y1, int x2, int y2, int color,LPDIRECTDRAWSURFACE7 lpdds);
- void HLine(int x1,int x2,int y,int color, UCHAR *vbuffer, int lpitch);
- void VLine(int y1,int y2,int x,int color, UCHAR *vbuffer, int lpitch);
- void HLine16(int x1,int x2,int y,int color, UCHAR *vbuffer, int lpitch);
- void VLine16(int y1,int y2,int x,int color, UCHAR *vbuffer, int lpitch);
- void Screen_Transitions(int effect, UCHAR *vbuffer, int lpitch);
- // 常规2D 8/16位 多边形变换函数
- int Draw_Filled_Polygon2D(POLYGON2D_PTR poly, UCHAR *vbuffer, int mempitch);
- int Draw_Filled_Polygon2D16(POLYGON2D_PTR poly, UCHAR *vbuffer, int mempitch);
- int Translate_Polygon2D(POLYGON2D_PTR poly, int dx, int dy);
- int Rotate_Polygon2D(POLYGON2D_PTR poly, int theta);
- int Scale_Polygon2D(POLYGON2D_PTR poly, float sx, float sy);
- void Build_Sin_Cos_Tables(void);
- int Translate_Polygon2D_Mat(POLYGON2D_PTR poly, int dx, int dy);
- int Rotate_Polygon2D_Mat(POLYGON2D_PTR poly, int theta);
- int Scale_Polygon2D_Mat(POLYGON2D_PTR poly, float sx, float sy);
- int Draw_Polygon2D(POLYGON2D_PTR poly, UCHAR *vbuffer, int lpitch);
- int Draw_Polygon2D16(POLYGON2D_PTR poly, UCHAR *vbuffer, int lpitch);
- // 数学函数(求2点距离)
- int Fast_Distance_2D(int x, int y);
- float Fast_Distance_3D(float x, float y, float z);
- // 碰撞检测函数(找到多边形边框)
- int Find_Bounding_Box_Poly2D(POLYGON2D_PTR poly,
- float &min_x, float &max_x,
- float &min_y, float &max_y);
- // 基础矩阵函数
- int Mat_Mul_1X2_3X2(MATRIX1X2_PTR ma,
- MATRIX3X2_PTR mb,
- MATRIX1X2_PTR mprod);
- int Mat_Mul_1X3_3X3(MATRIX1X3_PTR ma,
- MATRIX3X3_PTR mb,
- MATRIX1X3_PTR mprod);
- int Mat_Mul_3X3(MATRIX3X3_PTR ma,
- MATRIX3X3_PTR mb,
- MATRIX3X3_PTR mprod);
- inline int Mat_Init_3X2(MATRIX3X2_PTR ma,
- float m00, float m01,
- float m10, float m11,
- float m20, float m21);
- // 全局变量 ////////////////////////////////////////////////
- // 这里还是英文注释,容易理解
- extern FILE *fp_error; // general error file
- extern char error_filename[80]; // error file name
- // notice that interface 4.0 is used on