The-Powder-Toy/graphics.h

#ifndef GRAPHICS_H
#define GRAPHICS_H
#include <SDL/SDL.h>

#ifdef PIX16
#define PIXELSIZE 2
typedef unsigned short pixel;
#define PIXPACK(x) ((((x)>>8)&0xF800)|(((x)>>5)&0x07E0)|(((x)>>3)&0x001F))
#define PIXRGB(r,g,b) ((((r)<<8)&0xF800)|(((g)<<3)&0x07E0)|(((b)>>3)&0x001F))
#define PIXR(x) (((x)>>8)&0xF8)
#define PIXG(x) (((x)>>3)&0xFC)
#define PIXB(x) (((x)<<3)&0xF8)
#else
#define PIXELSIZE 4
typedef unsigned int pixel;
#ifdef PIX32BGR
#define PIXPACK(x) ((((x)>>16)&0x0000FF)|((x)&0x00FF00)|(((x)<<16)&0xFF0000))
#define PIXRGB(r,g,b) (((b)<<16)|((g)<<8)|((r)))// (((b)<<16)|((g)<<8)|(r))
#define PIXR(x) ((x)&0xFF)
#define PIXG(x) (((x)>>8)&0xFF)
#define PIXB(x) ((x)>>16)
#else
#ifdef PIX32BGRA
#define PIXPACK(x) ((((x)>>8)&0x0000FF00)|(((x)<<8)&0x00FF0000)|(((x)<<24)&0xFF000000))
#define PIXRGB(r,g,b) (((b)<<24)|((g)<<16)|((r)<<8))
#define PIXR(x) (((x)>>8)&0xFF)
#define PIXG(x) (((x)>>16)&0xFF)
#define PIXB(x) (((x)>>24))
#else
#define PIXPACK(x) (x)
#define PIXRGB(r,g,b) (((r)<<16)|((g)<<8)|(b))
#define PIXR(x) ((x)>>16)
#define PIXG(x) (((x)>>8)&0xFF)
#define PIXB(x) ((x)&0xFF)
#endif
#endif
#endif

extern unsigned cmode;
extern SDL_Surface *sdl_scrn;
extern int sdl_scale;

pixel *rescale_img(pixel *src, int sw, int sh, int *qw, int *qh, int f);

void sdl_blit_1(int x, int y, int w, int h, pixel *src, int pitch);

void sdl_blit_2(int x, int y, int w, int h, pixel *src, int pitch);

void sdl_blit(int x, int y, int w, int h, pixel *src, int pitch);

void drawblob(pixel *vid, int x, int y, unsigned char cr, unsigned char cg, unsigned char cb);

void draw_tool(pixel *vid_buf, int b, int sl, int sr, unsigned pc, unsigned iswall);

int draw_tool_xy(pixel *vid_buf, int x, int y, int b, unsigned pc);

void draw_menu(pixel *vid_buf, int i, int hover);

#ifdef WIN32
_inline void drawpixel(pixel *vid, int x, int y, int r, int g, int b, int a);
#else
inline void drawpixel(pixel *vid, int x, int y, int r, int g, int b, int a);
#endif

#ifdef WIN32
_inline int drawchar(pixel *vid, int x, int y, int c, int r, int g, int b, int a);
#else
inline int drawchar(pixel *vid, int x, int y, int c, int r, int g, int b, int a);
#endif

int drawtext(pixel *vid, int x, int y, char *s, int r, int g, int b, int a);

void drawrect(pixel *vid, int x, int y, int w, int h, int r, int g, int b, int a);

void fillrect(pixel *vid, int x, int y, int w, int h, int r, int g, int b, int a);

void clearrect(pixel *vid, int x, int y, int w, int h);

void drawdots(pixel *vid, int x, int y, int h, int r, int g, int b, int a);

int textwidth(char *s);

int drawtextmax(pixel *vid, int x, int y, int w, char *s, int r, int g, int b, int a);

int textnwidth(char *s, int n);

int textwidthx(char *s, int w);

#ifdef WIN32
_inline void blendpixel(pixel *vid, int x, int y, int r, int g, int b, int a);
#else
inline void blendpixel(pixel *vid, int x, int y, int r, int g, int b, int a);
#endif

void draw_icon(pixel *vid_buf, int x, int y, char ch, int flag);

void draw_air(pixel *vid);

void draw_line(pixel *vid, int x1, int y1, int x2, int y2, int r, int g, int b, int a);

void addpixel(pixel *vid, int x, int y, int r, int g, int b, int a);

void xor_pixel(int x, int y, pixel *vid);

void xor_line(int x1, int y1, int x2, int y2, pixel *vid);

void xor_rect(pixel *vid, int x, int y, int w, int h);

#endif