📄 t3dlib1.h
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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 functions
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);
// general utility functions
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);
// graphics functions
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 xo, int yo, int x1,int y1, int color,UCHAR *vb_start,int lpitch);
int Draw_Line16(int xo, int yo, 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_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);
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);
// palette functions
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);
// simple bitmap image functions
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);
// bitmap file functions
int Load_Bitmap_File(BITMAP_FILE_PTR bitmap, char *filename);
int Unload_Bitmap_File(BITMAP_FILE_PTR bitmap);
// gdi functions
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);
// error functions
int Open_Error_File(char *filename, FILE *fp_override=NULL);
int Close_Error_File(void);
int Write_Error(char *string, ...);
// 2d 8-bit, 16-bit triangle rendering
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);
// math functions
int Fast_Distance_2D(int x, int y);
float Fast_Distance_3D(float x, float y, float z);
// collision detection functions
int Find_Bounding_Box_Poly2D(POLYGON2D_PTR poly,
float &min_x, float &max_x,
float &min_y, float &max_y);
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);
// memory manipulation functions
inline void Mem_Set_WORD(void *dest, USHORT data, int count);
inline void Mem_Set_QUAD(void *dest, UINT data, int count);
// INLINE FUNCTIONS //////////////////////////////////////////
inline void Mem_Set_WORD(void *dest, USHORT data, int count)
{
// this function fills or sets unsigned 16-bit aligned memory
// count is number of words
//Write_Error("{");
_asm
{
mov edi, dest ; edi points to destination memory
mov ecx, count ; number of 16-bit words to move
mov ax, data ; 16-bit data
rep stosw ; move data
} // end asm
//Write_Error("}");
} // end Mem_Set_WORD
///////////////////////////////////////////////////////////
inline void Mem_Set_QUAD(void *dest, UINT data, int count)
{
// this function fills or sets unsigned 32-bit aligned memory
// count is number of quads
_asm
{
mov edi, dest ; edi points to destination memory
mov ecx, count ; number of 32-bit words to move
mov eax, data ; 32-bit data
rep stosd ; move data
} // end asm
} // end Mem_Set_QUAD
//////////////////////////////////////////////////////////
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)
{
// this function draws a 2D quadrilateral
// simply call the triangle function 2x, let it do all the work
Draw_TriangleFP_2D(x0,y0,x1,y1,x3,y3,color,dest_buffer,mempitch);
Draw_TriangleFP_2D(x1,y1,x2,y2,x3,y3,color,dest_buffer,mempitch);
} // end Draw_QuadFP_2D
////////////////////////////////////////////////////////////
inline int Mat_Init_3X2(MATRIX3X2_PTR ma,
float m00, float m01,
float m10, float m11,
float m20, float m21)
{
// this function fills a 3x2 matrix with the sent data in row major form
ma->M[0][0] = m00; ma->M[0][1] = m01;
ma->M[1][0] = m10; ma->M[1][1] = m11;
ma->M[2][0] = m20; ma->M[2][1] = m21;
// return success
return(1);
} // end Mat_Init_3X2
// GLOBALS ////////////////////////////////////////////////
extern FILE *fp_error; // general error file
extern char error_filename[80]; // error file name
// notice that interface 4.0 is used on a number of interfaces
extern LPDIRECTDRAW7 lpdd; // dd object
extern LPDIRECTDRAWSURFACE7 lpddsprimary; // dd primary surface
extern LPDIRECTDRAWSURFACE7 lpddsback; // dd back surface
extern LPDIRECTDRAWPALETTE lpddpal; // a pointer to the created dd palette
extern LPDIRECTDRAWCLIPPER lpddclipper; // dd clipper for back surface
extern LPDIRECTDRAWCLIPPER lpddclipperwin; // dd clipper for window
extern PALETTEENTRY palette[256]; // color palette
extern PALETTEENTRY save_palette[256]; // used to save palettes
extern DDSURFACEDESC2 ddsd; // a direct draw surface description struct
extern DDBLTFX ddbltfx; // used to fill
extern DDSCAPS2 ddscaps; // a direct draw surface capabilities struct
extern HRESULT ddrval; // result back from dd calls
extern UCHAR *primary_buffer; // primary video buffer
extern UCHAR *back_buffer; // secondary back buffer
extern int primary_lpitch; // memory line pitch
extern int back_lpitch; // memory line pitch
extern BITMAP_FILE bitmap8bit; // a 8 bit bitmap file
extern BITMAP_FILE bitmap16bit; // a 16 bit bitmap file
extern BITMAP_FILE bitmap24bit; // a 24 bit bitmap file
extern DWORD start_clock_count; // used for timing
extern int windowed_mode; // tracks if dd is windowed or not
// these defined the general clipping rectangle for software clipping
extern int min_clip_x, // clipping rectangle
max_clip_x,
min_clip_y,
max_clip_y;
// these are overwritten globally by DD_Init()
extern int screen_width, // width of screen
screen_height, // height of screen
screen_bpp, // bits per pixel
screen_windowed; // is this a windowed app?
extern int dd_pixel_format; // default pixel format
extern int window_client_x0; // used to track the starting (x,y) client area for
extern int window_client_y0; // for windowed mode directdraw operations
// storage for our lookup tables
extern float cos_look[361]; // 1 extra so we can store 0-360 inclusive
extern float sin_look[361]; // 1 extra so we can store 0-360 inclusive
// function ptr to RGB16 builder
extern USHORT (*RGB16Bit)(int r, int g, int b);
// root functions
extern USHORT RGB16Bit565(int r, int g, int b);
extern USHORT RGB16Bit555(int r, int g, int b);
// conditionally compilation for engine stats
extern int debug_total_polys_per_frame;
extern int debug_polys_lit_per_frame;
extern int debug_polys_clipped_per_frame;
extern int debug_polys_rendered_per_frame;
extern int debug_backfaces_removed_per_frame;
extern int debug_objects_removed_per_frame;
extern int debug_total_transformations_per_frame;
#endif
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