benchmarks for drawing AVI frames

test video: "Movie_051112214725 comp.avi"
Release mode
Master Rings = 0
Window size: 632 x 459
# samples:      1000 (40 seconds)
averages (times in seconds)

Dell / Windows 2000
---------------------
using BitBlt, SRCCOPY
total           0.032182 <- i.e. avg duration of DrawAviFrame
get frame       0.013667 (42.5%)
create bitmap   0.009647 (30.0%)
blit            0.008469 (26.3%)
misc            0.000400 (1.2%)

using StretchBlt, SRCCOPY
total           0.047449 <- exceeds timer period! 47% worse than BitBlt
get frame       0.013653 (28.8%)
create bitmap   0.009758 (20.6%)
blit            0.023656 (49.9%)
misc            0.000383 (0.8%)

using StretchBlt, SRCINVERT
total           0.059013 <- 148% of timer period! 25% worse than SRCCOPY
get frame       0.013646 (23.1%)
create bitmap   0.010457 (17.7%)
blit            0.034508 (58.5%)
misc            0.000402 (0.7%)

Hotrod / XP
---------------------
using BitBlt, SRCCOPY
total           0.004478 <- i.e. avg duration of DrawAviFrame
get frame       0.002263 (50.5%)
create bitmap   0.001238 (27.6%)
blit            0.000881 (19.7%)
misc            0.000096 (2.1%)

using StretchBlt, SRCCOPY
total           0.006912 <- 54% worse than BitBlt
get frame       0.002257 (32.7%)
create bitmap   0.001240 (17.9%)
blit            0.003314 (48.0%)
misc            0.000100 (1.4%)

using StretchBlt, SRCINVERT
total           0.008200 <- 20% of timer period, 19% worse than SRCCOPY
get frame       0.002267 (27.6%)
create bitmap   0.001239 (15.1%)
blit            0.004592 (56.0%)
misc            0.000102 (1.2%)

Conclusion:
Hotrod is 7.2 times faster, but StretchBlt mode is bad stuff.

#include "benchmark.h"
double  blitsum;
double  createsum;
double  getfrmsum;
double  totsum;
int samps;
...
totsum += b.Elapsed();
samps++;
if (samps == 1000) {
    CString s;
    double  total = totsum / samps;
    double  getfrm = getfrmsum / samps;
    double  create = createsum / samps;
    double  blit = blitsum / samps;
    double  misc = total - (getfrm + create + blit);
    s.Format("total\t%f\ngetfrm\t%f (%.1f%%)\ncreate\t%f (%.1f%%)\nblit\t%f (%.1f%%)\nmisc\t%f (%.1f%%)", 
        total, 
        getfrm, getfrm / total * 100, 
        create, create / total * 100, 
        blit, blit / total * 100, 
        misc, misc / total * 100);
    AfxMessageBox(s);
}