--- /dev/null
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <string.h>
+#include <malloc.h>
+#include <errno.h>
+#include <X11/Xlib.h>
+#include <sys/time.h>
+
+#include "s.C"
+
+#define WIDTH 640
+#define HEIGHT 480
+
+#define SWIDTH 80
+#define SHEIGHT 45
+
+double the_time()
+{
+ struct timeval tv;
+ gettimeofday(&tv,NULL);
+ return tv.tv_sec + tv.tv_usec/1000000.0;
+}
+
+void loadImage(int x, int y, XImage *image, unsigned char *cp, int width, int height)
+{
+ int i, j, k, b0, bi, npixel, nline;
+ unsigned long rmask, gmask, bmask;
+ double rshft, gshft, bshft;
+ unsigned char r, g, b, *bp, *dp, *data;
+ unsigned long pix, pixel;
+
+ npixel = image->bits_per_pixel / 8;
+ /* A, R, G, B or A, B, G, R */
+ if( image->byte_order != MSBFirst ) {
+ bi = 1; b0 = 0;
+ }
+ else {
+ bi = -1; b0 = npixel-1;
+ }
+
+ rmask = image->red_mask; rshft = rmask/255.0;
+ gmask = image->green_mask; gshft = gmask/255.0;
+ bmask = image->blue_mask; bshft = bmask/255.0;
+ nline = image->bytes_per_line;
+ data = (unsigned char *)image->data + y*nline + x*npixel;
+
+ for( k=0; k<height; k++ ) {
+ dp = data;
+ for( j=0; j<width; ++j ) {
+ r = g = b = *cp;
+ pixel = ((int)(r*rshft + 0.5) & rmask)
+ + ((int)(g*gshft + 0.5) & gmask)
+ + ((int)(b*bshft + 0.5) & bmask);
+ bp = dp + b0; pix = pixel;
+ for( i=npixel; --i>0; pix>>=8 ) {
+ *bp = pix; bp += bi;
+ }
+ dp += npixel; ++cp;
+ }
+ data += nline;
+ }
+
+}
+
+int done = -1;
+theDb db;
+
+static void
+clientMsg(Display *dpy,Window w,Atom amsg,int fmt)
+{
+ XClientMessageEvent ev;
+ memset(&ev,0,sizeof(ev));
+ ev.type = ClientMessage;
+ ev.window = w;
+ ev.message_type = amsg;
+ ev.format = fmt;
+ XSendEvent(dpy,w,False,0,(XEvent *)&ev);
+}
+
+static void
+scale0(uint8_t *idata,int iw,int ih,uint8_t *odata,int ow,int oh)
+{
+ int i, dx, dy;
+ double iw1 = iw-1;
+ double ow1 = ow-1;
+
+ int idx[ow];
+ for( dx=0; dx<ow; ++dx )
+ idx[dx] = ((int)((dx*iw1)/ow1));
+
+ int rsz = iw;
+ double ih1 = ih-1;
+ double oh1 = oh-1;
+ for( dy=0; dy<oh; ++dy ) {
+ uint8_t *row = &idata[rsz * ((int)((dy*ih1)/oh1))];
+ for( dx=0; dx<ow; ++dx ) {
+ uint8_t *bp = &row[idx[dx]];
+ for( i=1; --i>=0; *odata++ = bp[i]);
+ }
+ }
+}
+
+#if 0
+static void
+scale1(uint8_t *idata,int iw,int ih,int rx,int ry,int rw,int rh,
+ uint8_t *odata,int ow,int oh,int sx,int sy,int sw,int sh)
+{
+ //if( rw < 3 || rh < 3 || sw < 3 || sh < 3 ) return;
+ int i, dx, dy; int ibpp = 1, obpp = 1;
+ int rsz = ibpp * iw, ssz = obpp * ow;
+ double iw2 = rw-2, ih2 = rh-2;
+ double ow1 = iw2/(sw-1), oh1 = ih2/(sh-1);
+ odata += sy*ssz + 4*sx;
+
+ for( dy=0; dy<sh; ++dy,odata+=ssz ) {
+ double fy = dy*oh1;
+ int iy = (int)fy;
+ int yf1 = fy - iy;
+ int yf0 = 1.0 - yf1;
+ int idy = rsz * (iy + ry);
+ uint8_t *row0 = &idata[idy];
+ uint8_t *row1 = &idata[idy+rsz];
+ uint8_t *bp = odata;
+
+ for( dx=0; dx<sw; ++dx ) {
+ double fx = dx*ow1;
+ int ix = (int)fx;
+ double xf1 = fx - ix;
+ double xf0 = 1.0 - xf1;
+ int idx = ibpp * (ix + rx);
+ uint8_t *cp00 = &row0[idx];
+ uint8_t *cp01 = &row0[idx+ibpp];
+ uint8_t *cp10 = &row1[idx];
+ uint8_t *cp11 = &row1[idx+ibpp];
+ double a00 = yf0 * xf0;
+ double a01 = yf0 * xf1;
+ double a10 = yf1 * xf0;
+ double a11 = yf1 * xf1;
+ for( bp[i=ibpp]=0; --i>=0; ++cp00, ++cp01, ++cp10, ++cp11 )
+ bp[i] = *cp00*a00 + *cp01*a01 + *cp10*a10 + *cp11*a11 + 0.5;
+ bp += obpp;
+ }
+ }
+}
+
+
+static void
+scale2(uint8_t *idata,int iw,int ih,int rx,int ry,int rw,int rh,
+ uint8_t *odata,int ow,int oh,int sx,int sy,int sw,int sh)
+{
+ if( rw < 3 || rh < 3 || sw < 3 || sh < 3 ) return;
+ const int ibpp=1, obpp=1;
+ int x, y, dx, dy;
+ int rsz = ibpp*iw, ssz = obpp*ow;
+ double rw0=rw, rh0=rh;
+ double ow0=sw, oh0=sh;
+ double px = rw0/ow0, py = rh0/oh0;
+ double pz = (ow0*oh0)/(rw0*rh0);
+ double ly = 0.0;
+ odata += sy*ssz + obpp*sx;
+
+ for( dy=1; dy<=sh; ++dy,odata+=ssz ) {
+ int iy0 = (int)ly;
+ double yf0 = ly - iy0;
+ double ny = dy*py + 1e-99;
+ int iy1 = (int)ny;
+ double yf1 = ny - iy1;
+ uint8_t *bp = odata;
+ double lx = 0.0;
+
+ for( dx=1; dx<=sw; ++dx ) {
+ int ix0 = (int)lx;
+ double xf0 = lx - ix0;
+ double nx = dx*px + 1e-99;
+ int ix1 = (int)nx;
+ double xf1 = nx - ix1;
+ double r=0.0;
+ for( y=iy0; y<=iy1; ++y ) {
+ int idy = rsz * (y + ry);
+ uint8_t *row = &idata[idy];
+ double yw = pz;
+ if( y == iy0 ) yw *= (y==iy1 ? yf1-yf0 : 1.0-yf0);
+ else if( y == iy1 ) yw *= yf1;
+ if( yw <= 0.0 ) continue;
+ for( x=ix0; x<=ix1; ++x ) {
+ double xyw = yw;
+ if( x == ix0 ) xyw *= (x==ix1 ? xf1-xf0 : 1.0-xf0);
+ else if( x == ix1 ) xyw *= xf1;
+ if( xyw <= 0.0 ) continue;
+ int idx = ibpp*(x + rx);
+ uint8_t *cp = &row[idx];
+ r += cp[0]*xyw;
+ }
+ }
+ *bp++ = r + 0.5;
+ xf0 = xf1;
+ lx = nx;
+ }
+ yf0 = yf1;
+ ly = ny;
+ }
+}
+
+void write_pbm(uint8_t *tp, int w, int h, const char *fmt, ...)
+{
+ va_list ap; va_start(ap, fmt);
+ char fn[256]; vsnprintf(fn, sizeof(fn), fmt, ap);
+ va_end(ap);
+ FILE *fp = !strcmp(fn,"-") ? stdout : fopen(fn,"w");
+ if( fp ) {
+ fprintf(fp,"P5\n%d %d\n255\n",w,h);
+ fwrite(tp,w,h,fp);
+ fclose(fp);
+ }
+}
+
+#endif
+
+int main(int ac,char **av)
+{
+ Window w, root;
+ Display *display;
+ GC gc;
+ XGCValues gcv;
+ XEvent xev;
+ XImage *image;
+ Visual *visual;
+ Screen *screen;
+ Atom aMsg;
+ char *pixels;
+ int n, depth, depthfactor;
+ int client_msg;
+
+ setbuf(stdout,NULL);
+ if( db.open(av[1]) ) {
+ fprintf(stderr,"cant open db: %s\n",av[1]);
+ exit(1);
+ }
+ int clip_id = atoi(av[2]);
+ if( db.clip_set.FindId(clip_id) ) {
+ printf("cant open clip %d\n",clip_id);
+ exit(1);
+ }
+ double framerate = db.clip_set.Framerate();
+ int ret = TimelineLoc::ikey_Sequences(db.timeline,clip_id,0).Locate();
+ if( ret || clip_id != (int)db.timeline.Clip_id() ) {
+ printf("cant access timeline of clip %d\n",clip_id);
+ exit(1);
+ }
+ int frame_no = 0, frame_id = -1;
+ uint8_t *dat = 0;
+
+ display = XOpenDisplay(NULL);
+ if( display == NULL ) {
+ fprintf(stderr,"cant open display\n");
+ exit(1);
+ }
+
+ root = RootWindow(display,0);
+ screen = DefaultScreenOfDisplay(display);
+ depth = DefaultDepthOfScreen(screen);
+ visual = DefaultVisualOfScreen(screen);
+ client_msg = 0;
+
+ switch( visual->c_class ) {
+ case TrueColor:
+ depthfactor = 4;
+ break;
+ default:
+ fprintf(stderr,"bad visual class %d\n",visual->c_class);
+ exit(1);
+ }
+
+ w = XCreateSimpleWindow(display, root, 0, 0, WIDTH, HEIGHT,
+ 0, 0, WhitePixelOfScreen(screen));
+
+ pixels = (char *) malloc(HEIGHT*WIDTH*depthfactor);
+ image = XCreateImage( display, visual, depth, ZPixmap, 0,
+ pixels, WIDTH, HEIGHT, 8, WIDTH*depthfactor);
+
+ XSelectInput(display, w, ExposureMask|StructureNotifyMask|ButtonPressMask);
+ XMapWindow(display, w);
+ XFlush(display);
+ aMsg = XInternAtom(display,"dbtv",False);
+ gcv.function = GXcopy;
+ gcv.foreground = BlackPixelOfScreen(DefaultScreenOfDisplay(display));
+ gcv.line_width = 1;
+ gcv.line_style = LineSolid;
+ n = GCFunction|GCForeground|GCLineWidth|GCLineStyle;
+ gc = XCreateGC(display,w,n,&gcv);
+ double start_time = the_time();
+
+ while( done < 0 ) {
+ XNextEvent(display,&xev);
+ /* printf("xev.type = %d/%08x\n",xev.type,xev.xany.window); */
+ switch( xev.type ) {
+ case ButtonPress:
+ if( xev.xbutton.window != w ) continue;
+ if( xev.xbutton.button != Button1 ) {
+ done = 1;
+ break;
+ }
+ done = 0;
+ break;
+
+ case Expose:
+ if( client_msg != 0 ) break;
+ client_msg = 1; /* fall through */
+ start_time = the_time();
+
+ case ClientMessage:
+ frame_id = db.timeline.Frame_id();
+ if( db.video_frame.FindId(frame_id) ) {
+ printf("cant access frame %d (id %d) in clip %d\n",
+ frame_no, frame_id, clip_id); done = 1; break;
+ }
+ dat = db.video_frame._Frame_data();
+ //write_pbm(dat, SWIDTH,SHEIGHT, "%s/f%05d.pbm",av[2], fid);
+ uint8_t img[WIDTH*HEIGHT];
+ scale0(dat,SWIDTH,SHEIGHT, img,WIDTH,HEIGHT);
+// scale1(dat, SWIDTH,SHEIGHT, 0,0,SWIDTH,SHEIGHT,
+// img, WIDTH, HEIGHT, 0,0,WIDTH, HEIGHT);
+ loadImage(0,0, image, img, WIDTH, HEIGHT);
+ while( (int)(1000 * (frame_no/framerate - (the_time()-start_time))) > 0 ) {
+ usleep(1000);
+ }
+ ++frame_no;
+ XPutImage( display, w, gc, image, 0, 0, 0, 0, WIDTH, HEIGHT);
+ XFlush(display);
+ ret = TimelineLoc::rkey_Sequences(db.timeline).Next();
+ if( ret || clip_id != (int)db.timeline.Clip_id() ) { done = 1; break; }
+ clientMsg(display,w,aMsg,32);
+ break;
+
+ case DestroyNotify:
+ done = 0;
+ break;
+ }
+ }
+
+ XCloseDisplay(display);
+ return done;
+}
+
projects / goodguy / history.git / blobdiff