diff options
Diffstat (limited to 'main.c')
| -rw-r--r-- | main.c | 335 |
1 files changed, 3 insertions, 332 deletions
@@ -1,6 +1,5 @@ #include <u.h> #include <libc.h> -#include <bio.h> #include <thread.h> #include <draw.h> #include <memdraw.h> @@ -8,85 +7,8 @@ #include <keyboard.h> #include <geometry.h> #include "libobj/obj.h" - -#define HZ2MS(hz) (1000/(hz)) - -typedef Point Triangle[3]; -typedef struct VSparams VSparams; -typedef struct FSparams FSparams; -typedef struct SUparams SUparams; -typedef struct Shader Shader; -typedef struct Framebuf Framebuf; -typedef struct Framebufctl Framebufctl; - -/* shader params */ -struct VSparams -{ - SUparams *su; - Point3 *p; - Point3 *n; - uint idx; -}; - -struct FSparams -{ - SUparams *su; - Memimage *frag; - Point p; - Point3 bc; - uchar *cbuf; -}; - -/* shader unit params */ -struct SUparams -{ - Framebuf *fb; - OBJElem **b, **e; - int id; - Channel *donec; - - double var_intensity[3]; - - uvlong uni_time; - - Point3 (*vshader)(VSparams*); - Memimage *(*fshader)(FSparams*); -}; - -struct Shader -{ - char *name; - Point3 (*vshader)(VSparams*); - Memimage *(*fshader)(FSparams*); -}; - -struct Framebuf -{ - Memimage *cb; - Memimage *zb; - double *zbuf; - Lock zbuflk; - Memimage *nb; /* XXX DBG */ - Rectangle r; -}; - -struct Framebufctl -{ - Framebuf *fb[2]; - uint idx; - Lock swplk; - - void (*draw)(Framebufctl*, Memimage*, int); - void (*swap)(Framebufctl*); - void (*reset)(Framebufctl*); -}; - -typedef struct Stats Stats; -struct Stats -{ - uvlong min, avg, max, acc, n, v; -}; - +#include "dat.h" +#include "fns.h" Stats fps; Framebufctl *fbctl; @@ -97,7 +19,7 @@ Memimage *modeltex; Channel *drawc; int nprocs; int showzbuffer; -int shownormals; +int shownormals; /* XXX DBG */ char winspec[32]; Point3 light = {0,-1,1,1}; /* global directional light */ @@ -108,72 +30,6 @@ Matrix3 view, proj, rota; double θ, ω; double scale; -void resized(void); -uvlong nanosec(void); - -int -min(int a, int b) -{ - return a < b? a: b; -} - -int -max(int a, int b) -{ - return a > b? a: b; -} - -double -fmin(double a, double b) -{ - return a < b? a: b; -} - -double -fmax(double a, double b) -{ - return a > b? a: b; -} - -void -swap(int *a, int *b) -{ - int t; - - t = *a; - *a = *b; - *b = t; -} - -void -swappt2(Point2 *a, Point2 *b) -{ - Point2 t; - - t = *a; - *a = *b; - *b = t; -} - -void -swappt3(Point3 *a, Point3 *b) -{ - Point3 t; - - t = *a; - *a = *b; - *b = t; -} - -void -memsetd(double *p, double v, usize len) -{ - double *dp; - - for(dp = p; dp < p+len; dp++) - *dp = v; -} - void updatestats(Stats *s, uvlong v) { @@ -185,190 +41,6 @@ updatestats(Stats *s, uvlong v) s->max = v > s->max || s->n == 1? v: s->max; } -double -step(double edge, double n) -{ - if(n < edge) - return 0; - return 1; -} - -double -smoothstep(double edge0, double edge1, double n) -{ - double t; - - t = fclamp((n-edge0)/(edge1-edge0), 0, 1); - return t*t * (3 - 2*t); -} - -void * -emalloc(ulong n) -{ - void *p; - - p = malloc(n); - if(p == nil) - sysfatal("malloc: %r"); - setmalloctag(p, getcallerpc(&n)); - return p; -} - -void * -erealloc(void *p, ulong n) -{ - void *np; - - np = realloc(p, n); - if(np == nil){ - if(n == 0) - return nil; - sysfatal("realloc: %r"); - } - if(p == nil) - setmalloctag(np, getcallerpc(&p)); - else - setrealloctag(np, getcallerpc(&p)); - return np; -} - -Image * -eallocimage(Display *d, Rectangle r, ulong chan, int repl, ulong col) -{ - Image *i; - - i = allocimage(d, r, chan, repl, col); - if(i == nil) - sysfatal("allocimage: %r"); - return i; -} - -Memimage * -eallocmemimage(Rectangle r, ulong chan) -{ - Memimage *i; - - i = allocmemimage(r, chan); - if(i == nil) - sysfatal("allocmemimage: %r"); - memfillcolor(i, DTransparent); - return i; -} - -static void -framebufctl_draw(Framebufctl *ctl, Memimage *dst, int showz) -{ - lock(&ctl->swplk); - memimagedraw(dst, dst->r, showz? ctl->fb[ctl->idx]->zb: ctl->fb[ctl->idx]->cb, ZP, nil, ZP, SoverD); - /* XXX DBG */ - if(shownormals) - memimagedraw(dst, dst->r, ctl->fb[ctl->idx]->nb, ZP, nil, ZP, SoverD); - unlock(&ctl->swplk); -} - -static void -framebufctl_swap(Framebufctl *ctl) -{ - lock(&ctl->swplk); - ctl->idx ^= 1; - unlock(&ctl->swplk); -} - -static void -framebufctl_reset(Framebufctl *ctl) -{ - Framebuf *fb; - - /* address the back buffer—resetting the front buffer is VERBOTEN */ - fb = ctl->fb[ctl->idx^1]; - memsetd(fb->zbuf, Inf(-1), Dx(fb->r)*Dy(fb->r)); - memfillcolor(fb->cb, DTransparent); - memfillcolor(fb->zb, DTransparent); - memfillcolor(fb->nb, DTransparent); /* XXX DBG */ -} - -Framebuf * -mkfb(Rectangle r) -{ - Framebuf *fb; - - fb = emalloc(sizeof *fb); - fb->cb = eallocmemimage(r, RGBA32); - fb->zb = eallocmemimage(r, RGBA32); - fb->zbuf = emalloc(Dx(r)*Dy(r)*sizeof(*fb->zbuf)); - memsetd(fb->zbuf, Inf(-1), Dx(r)*Dy(r)); - memset(&fb->zbuflk, 0, sizeof(fb->zbuflk)); - fb->nb = eallocmemimage(r, RGBA32); /* XXX DBG */ - fb->r = r; - return fb; -} - -Framebufctl * -newfbctl(Rectangle r) -{ - Framebufctl *fc; - - fc = emalloc(sizeof *fc); - memset(fc, 0, sizeof *fc); - fc->fb[0] = mkfb(r); - fc->fb[1] = mkfb(r); - fc->draw = framebufctl_draw; - fc->swap = framebufctl_swap; - fc->reset = framebufctl_reset; - return fc; -} - -static void -decproc(void *arg) -{ - int fd, *pfd; - - pfd = arg; - fd = pfd[2]; - - close(pfd[0]); - dup(fd, 0); - close(fd); - dup(pfd[1], 1); - close(pfd[1]); - - execl("/bin/tga", "tga", "-9t", nil); - threadexitsall("execl: %r"); -} - -Memimage * -readtga(char *path) -{ - Memimage *i; - int fd, pfd[3]; - - if(pipe(pfd) < 0) - sysfatal("pipe: %r"); - fd = open(path, OREAD); - if(fd < 0) - sysfatal("open: %r"); - pfd[2] = fd; - procrfork(decproc, pfd, mainstacksize, RFFDG|RFNAMEG|RFNOTEG); - close(pfd[1]); - i = readmemimage(pfd[0]); - close(pfd[0]); - close(fd); - - return i; -} - -Memimage * -rgb(ulong c) -{ - Memimage *i; - - i = eallocmemimage(Rect(0,0,1,1), screen->chan); - i->flags |= Frepl; - i->clipr = Rect(-1e6, -1e6, 1e6, 1e6); - memfillcolor(i, c); - return i; -} - void pixel(Memimage *dst, Point p, Memimage *src) { @@ -978,7 +650,6 @@ renderer(void *arg) fbctl->swap(fbctl); nbsendp(drawc, nil); } - threadexits(nil); } static char * |