Mercurial > projects > ldc
view demos/qd.d @ 218:df641a27e9fd trunk
[svn r234] Fixed: missed a few bogus #ifs in last revision.
author | lindquist |
---|---|
date | Thu, 05 Jun 2008 06:43:34 +0200 |
parents | f869c636a113 |
children | 22a56b65872b |
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module qd; extern(C) { struct SDL_Rect { short x, y; ushort w, h; } struct SDL_PixelFormat { //SDL_Palette *palette; void *palette; ubyte BitsPerPixel, BytesPerPixel, Rloss, Gloss, Bloss, Aloss, Rshift, Gshift, Bshift, Ashift; uint Rmask, Gmask, Bmask, Amask, colorkey; ubyte alpha; } struct SDL_Surface { uint flags; SDL_PixelFormat *format; int w, h; ushort pitch; void *pixels; int offset; void *hwdata; SDL_Rect clip_rect; uint unused; uint locked; void *map; uint format_version; int refcount; } uint SDL_MapRGBA(SDL_PixelFormat *format, ubyte r, ubyte g, ubyte b, ubyte a); void SDL_GetRGBA(uint pixel, SDL_PixelFormat *fmt, ubyte *r, ubyte *g, ubyte *b, ubyte *a); int SDL_LockSurface(SDL_Surface *); void SDL_UnlockSurface(SDL_Surface *); SDL_Surface * SDL_SetVideoMode(int width, int height, int bpp, uint flags); SDL_Surface *SDL_CreateRGBSurface(uint flags, int width, int height, int depth, uint Rmask=0, uint Gmask=0, uint Bmask=0, uint Amask=0); int SDL_Flip(SDL_Surface *); void SDL_UpdateRect (SDL_Surface *screen, int x, int y, uint w, uint h); int SDL_UpperBlit(SDL_Surface *src, SDL_Rect *srcrect, SDL_Surface *dst, SDL_Rect *dstrect); alias SDL_UpperBlit SDL_BlitSurface; int SDL_SetAlpha(SDL_Surface *surface, uint flags, ubyte alpha); int SDL_SetColorKey(SDL_Surface *surface, uint flag, uint key); int SDL_FillRect(SDL_Surface *dst, SDL_Rect *dstrect, uint color); const uint SDL_SWSURFACE=0; const uint SDL_HWSURFACE=1; const uint SDL_DOUBLEBUF=0x40000000; const uint SDL_FULLSCREEN=0x80000000; const uint SDL_SRCALPHA=0x00010000; const uint SDL_SRCCOLORKEY=0x00001000; void SDL_Delay(uint ms); uint SDL_GetTicks(); enum SDLKey { Unknown = 0, First = 0, Escape = 27, LCtrl = 306, } enum SDLMod { KMOD_NONE = 0x0000, KMOD_LSHIFT= 0x0001, KMOD_RSHIFT= 0x0002, KMOD_LCTRL = 0x0040, KMOD_RCTRL = 0x0080, KMOD_CTRL = 0x00C0, KMOD_LALT = 0x0100, KMOD_RALT = 0x0200, KMOD_ALT = 0x0300, KMOD_LMETA = 0x0400, KMOD_RMETA = 0x0800, KMOD_NUM = 0x1000, KMOD_CAPS = 0x2000, KMOD_MODE = 0x4000, KMOD_RESERVED = 0x8000 }; struct SDL_keysym { ubyte scancode; SDLKey sym; SDLMod mod; ushort unicode; } enum SDL_EventType : ubyte { NoEvent=0, Active, KeyDown, KeyUp, MouseMotion, MouseButtonDown, MouseButtonUp, JoyAxisMotion, JoyBallMotion, JoyHatMotion, JoyButtonDown, JoyButtonUp, Quit, SysWMEvent } union SDL_Event { SDL_EventType type; struct Active { SDL_EventType type, gain, state; }; Active active; struct Key { SDL_EventType type, which, state; SDL_keysym keysym; }; Key key; struct Motion { SDL_EventType type, which, state; ushort x, y; short xrel, yrel; }; Motion motion; struct Button { SDL_EventType type, which, button, state; ushort x, y; }; Button button; struct Jaxis { SDL_EventType type, which, axis; short value; }; Jaxis jaxis; struct Jball { SDL_EventType type, which, ball; short xrel, yrel; }; Jball jball; struct Jhat { SDL_EventType type, which, hat, value; }; Jhat jhat; struct Jbutton { SDL_EventType type, which, button, state; }; Jbutton jbutton; struct Resize { SDL_EventType type; int w, h; }; Resize resize; struct Expose { SDL_EventType type; }; Expose expose; struct Quit { SDL_EventType type; }; Quit quit; struct User { SDL_EventType type; int code; void *data1, data2; }; User user; struct Syswm { SDL_EventType type; void *msg; }; Syswm syswm; } int SDL_PollEvent(SDL_Event *event); } SDL_Surface *display; void putpixel32(int x, int y, ubyte[4] col) { uint *bufp = cast(uint *)display.pixels + y*display.pitch/4 + x; *bufp = SDL_MapRGBA(display.format, col[0], col[1], col[2], col[3]); } void putpixel32(int x, int y, ubyte[3] col) { uint *bufp = cast(uint *)display.pixels + y*display.pitch/4 + x; *bufp = SDL_MapRGBA(display.format, col[0], col[1], col[2], 0); } void getpixel32(int x, int y, ubyte[4] *col) { uint *bufp = cast(uint *)display.pixels + y*display.pitch/4 + x; SDL_GetRGBA(*bufp, display.format, &(*col)[0], &(*col)[1], &(*col)[2], &(*col)[3]); } struct rgb { ubyte[3] values; ubyte r() { return values[0]; } ubyte g() { return values[1]; } ubyte b() { return values[2]; } rgb opCat(rgb other) { rgb res; foreach (id, ref v; res.values) v=cast(ubyte)((values[id]+other.values[id])/2); return res; } bool opEquals(rgb r) { return values == r.values; } } void putpixel(int x, int y, ubyte[4] col) { if ( (x<0) || (y<0) || (x!<display.w) || (y!<display.h) ) return; putpixel32(x, y, col); } void hline(int x, int y, int w, rgb r) { hline(x, y, w, SDL_MapRGBA(display.format, r.values[0], r.values[1], r.values[2], 0)); } void hline(int x, int y, int w, uint c) { if ( (y<0) || (y!<display.h) ) return; if (x<0) { w+=x; x=0; } if (w<0) return; if ( (x+w) !<display.w) w=display.w-x-1; auto cur = cast(uint *)display.pixels + y*display.pitch/4 + x; foreach (ref value; cur[0..w+1]) value=c; } const rgb White={[255, 255, 255]}; const rgb Black={[0, 0, 0]}; const rgb Red={[255, 0, 0]}; const rgb Green={[0, 255, 0]}; const rgb Blue={[0, 0, 255]}; const rgb Yellow={[255, 255, 0]}; const rgb Cyan={[0, 255, 255]}; const rgb Purple={[255, 0, 255]}; rgb color=White; rgb back=Black; template failfind(U, T...) { static if (T.length) static if (is(T[0] == U)) static assert(false, "Duplicate "~U.stringof~" found!"); else const bool failfind=failfind!(U, T[1..$]); else const bool failfind=true; } template select(U, T...) { static if(T.length) static if (is(U == T[0])) { static if (failfind!(U, T[1..$])) { }; const int select = 0; } else static if (select!(U, T[1..$]) != -1) const int select = 1 + select!(U, T[1..$]); else const int select = -1; else const int select = -1; } typedef rgb back_rgb; back_rgb Back(rgb r) { return cast(back_rgb) r; } back_rgb Back() { return cast(back_rgb) back; } typedef rgb box_rgb; box_rgb Box(rgb r) { return cast(box_rgb) r; } box_rgb Box() { return cast(box_rgb) color; } alias Back Fill; bool doFlip=true; void flip() { SDL_Flip(display); } void flip(bool target) { doFlip=target; } scope class groupDraws { bool wasOn; this() { wasOn=doFlip; flip=false; } ~this() { if (wasOn) { flip=true; flip; } } } void execParams(T...)(T params) { const int bcol=select!(back_rgb, T); static if (bcol != -1) back=cast(rgb) params[bcol]; const int col=select!(rgb, T); static if (col != -1) color=params[col]; else static if (bcol != -1) color=back; const int boxcol=select!(box_rgb, T); static if (boxcol != -1) color=cast(rgb) params[boxcol]; } void tintfill(int x1, int y1, int x2, int y2, rgb color) { SDL_LockSurface(display); scope(exit) { SDL_UnlockSurface(display); if (doFlip) flip; } ubyte[4] c; for (int x=x1; x<x2; ++x) { for (int y=y1; y<y2; ++y) { getpixel32(x, y, &c); c[0]=cast(ubyte)(c[0]*178+color.r*77)>>8; c[1]=cast(ubyte)(c[1]*178+color.g*77)>>8; c[2]=cast(ubyte)(c[2]*178+color.b*77)>>8; putpixel32(x, y, c); } } } void pset(T...)(int x, int y, T params) { SDL_LockSurface(display); scope(exit) { SDL_UnlockSurface(display); if (doFlip) flip; } execParams(params); putpixel32(x, y, color.values); } rgb pget(int x, int y) { SDL_LockSurface(display); scope(exit) SDL_UnlockSurface(display); ubyte[4] c; getpixel32(x, y, &c); rgb res; res.values[]=c[0..3]; return res; } void swap(T)(ref T a, ref T b) { T c=a; a=b; b=c; } T abs(T)(T a) { return (a<0) ? -a : a; } void bresenham(bool countUp=true, bool steep=false)(int x0, int y0, int x1, int y1) { auto deltax = x1 - x0, deltay = y1 - y0; static if (steep) { auto Δerror = cast(float)deltax / cast(float)deltay; auto var2 = x0; const string name="y"; } else { auto Δerror = cast(float)deltay / cast(float)deltax; auto var2 = y0; const string name="x"; } auto error = 0f; ubyte[4] col; col[0..3]=color.values; for (auto var1 = mixin(name~'0'); var1 <= mixin(name~'1'); ++var1) { static if (steep) putpixel(var2, var1, col); else putpixel(var1, var2, col); error += Δerror; if (abs(error) >= 1f) { static if (countUp) { var2++; error -= 1f; } else { var2--; error += 1f; }} } } T max(T)(T a, T b) { return a>b?a:b; } T min(T)(T a, T b) { return a<b?a:b; } void line(T...)(int x0, int y0, int x1, int y1, T p) { execParams(p); static if (select!(back_rgb, T)!=-1) { SDL_LockSurface(display); scope(exit) { SDL_UnlockSurface(display); if (doFlip) flip; } auto yend=max(y0, y1); for (int y=min(y0, y1); y<=yend; ++y) { hline(min(x0, x1), y, max(x0, x1)-min(x0, x1), back); } } static if (select!(box_rgb, T)!=-1) { line(x0, y0, x1, y0); line(x1, y0, x1, y1); line(x1, y1, x0, y1); line(x0, y1, x0, y0); } static if (select!(box_rgb, T)+select!(back_rgb, T)==-2) { SDL_LockSurface(display); scope(exit) { SDL_UnlockSurface(display); if (doFlip) flip; } bool steep = abs(y1 - y0) > abs(x1 - x0); void turn() { swap(x0, x1); swap(y0, y1); } if (steep) { if (y1 < y0) turn; } else { if (x1 < x0) turn; } bool stepUp=steep ? (x0 < x1) : (y0 < y1); if (steep) { if (stepUp) bresenham!(true, true)(x0, y0, x1, y1); else bresenham!(false, true)(x0, y0, x1, y1); } else { if (stepUp) bresenham!(true, false)(x0, y0, x1, y1); else bresenham!(false, false)(x0, y0, x1, y1); } } } pragma(LLVM_internal, "intrinsic", "llvm.sqrt.f32") { float sqrt(float val); } pragma(LLVM_internal, "intrinsic", "llvm.sqrt.f64") { double sqrt(double val); real sqrt(real val); } template circle_bresenham_pass(bool first) { const string xy=(first?"x":"y"); const string yx=(first?"y":"x"); const string str=" auto x="~(first?"xradius":"0")~"; auto y="~(first?"0":"yradius")~"; auto xchange=yradius*yradius*"~(first?"(1-2*xradius)":"1")~"; auto ychange=xradius*xradius*"~(first?"1":"(1-2*yradius)")~"; auto error=0; auto stopx="~(first?"y2square*xradius":"0")~"; auto stopy="~(first?"0":"x2square*yradius")~"; while (stopx"~(first?">=":"<=")~"stopy) { putpixel(cx+x, cy+y, col); putpixel(cx+x, cy-y, col); putpixel(cx-x, cy+y, col); putpixel(cx-x, cy-y, col); "~yx~"++; stop"~yx~"+="~xy~"2square; error+="~yx~"change; "~yx~"change+="~xy~"2square; if ((2*error+"~xy~"change)>0) { --"~xy~"; stop"~xy~"-="~yx~"2square; error+="~xy~"change; "~xy~"change+="~yx~"2square; } } "; } import std.stdio; void circle(T...)(T t) { static assert(T.length!<3, "Circle: Needs x, y and radius"); int cx=t[0], cy=t[1], xradius=t[2]; SDL_LockSurface(display); scope(exit) { SDL_UnlockSurface(display); if (doFlip) flip; } execParams(t[3..$]); auto yradius=xradius; if (xradius!>0) return; static if (T.length>3 && is(T[3]: int)) yradius=t[3]; static if (select!(back_rgb, T) != -1) { auto ratio=xradius*1f/yradius; auto back_sdl=SDL_MapRGBA(display.format, back.values[0], back.values[1], back.values[2], 0); for (int i=0; i<=yradius; ++i) { ushort j=cast(ushort)(sqrt(cast(real)(yradius*yradius-i*i))*ratio); hline(cx-j, cy+i, 2*j, back_sdl); hline(cx-j, cy-i, 2*j, back_sdl); } } auto x2square=2*xradius*xradius; auto y2square=2*yradius*yradius; ubyte[4] col; col[0..3]=color.values; { mixin(circle_bresenham_pass!(true).str); } { mixin(circle_bresenham_pass!(false).str); } } float distance(float x1, float y1, float x2, float y2) { auto x=x1-x2, y=y1-y2; return sqrt(x*x+y*y); } struct floodfill_node { int x, y; static floodfill_node opCall(int x, int y) { floodfill_node res; res.x=x; res.y=y; return res; } } void paint(T...)(int x, int y, T t) { SDL_LockSurface(display); scope(exit) { SDL_UnlockSurface(display); if (doFlip) flip; } execParams(t); bool border=true; if (select!(back_rgb, T) == -1) { back=pget(x, y); border=false; } bool check(rgb r) { if (border) return (r != back) && (r != color); else return r == back; } if (back == color) throw new Exception("Having identical backgrounds and foregrounds will severely mess up floodfill."); alias floodfill_node node; node[] queue; queue ~= node(x, y); size_t count=0; while (count<queue.length) { scope(exit) count++; with (queue[count]) { if (check(pget(x, y))) { int w=x, e=x; if (w<display.w) do w++; while ((w<display.w) && check(pget(w, y))); if (e>=0) do e--; while (e>=0 && check(pget(e, y))); //SDL_Flip(display); for (int i=e+1; i<w; ++i) { putpixel32(i, y, color.values); if (y && check(pget(i, y-1)) && ((i==w-1)||!check(pget(i+1, y-1)))) queue ~= node(i, y-1); if ((y < display.h-1) && check(pget(i, y+1)) && ((i==w-1)||!check(pget(i+1, y+1)))) queue ~= node(i, y+1); } } } } } struct screen { static { void opCall(size_t w, size_t h) { display = SDL_SetVideoMode(w, h, 32, SDL_SWSURFACE | SDL_DOUBLEBUF); } int width() { return display.w; } int height() { return display.h; } } } void cls(rgb fill=Black) { line(0, 0, display.w-1, display.h-1, Fill=fill); } void events(void delegate(int, bool) key=null, void delegate(int, int, ubyte, bool) mouse=null) { SDL_Event evt; while (SDL_PollEvent(&evt)) { switch (evt.type) { case SDL_EventType.MouseMotion: with (evt.motion) if (mouse) mouse(x, y, 0, false); break; case SDL_EventType.MouseButtonDown: with (evt.button) if (mouse) mouse(x, y, button, true); break; case SDL_EventType.MouseButtonUp: with (evt.button) if (mouse) mouse(x, y, button, false); break; case SDL_EventType.KeyDown: if (key) key(evt.key.keysym.sym, true); case SDL_EventType.KeyUp: if (key) key(evt.key.keysym.sym, false); break; case SDL_EventType.Quit: throw new Error("Quit"); break; default: break; } } } void events(void delegate(int) key, void delegate(int, int, ubyte, bool) mouse=null) { events((int a, bool b) { if (b) key(a); }, mouse); } void events(void delegate(int) key, void delegate(int, int) mouse) { events(key, (int x, int y, ubyte b, bool p) { mouse(x, y); }); } void events(void delegate(int, bool) key, void delegate(int, int) mouse) { events(key, (int x, int y, ubyte b, bool p) { mouse(x, y); }); }