From: Hermès Bélusca-Maïto <hermes.belusca-maito@reactos.org>
Date: Wed, 29 Jan 2014 00:25:43 +0000 (+0000)
Subject: [NTVDM]
X-Git-Tag: backups/0.3.17@66124~1365^2~110
X-Git-Url: https://git.reactos.org/?p=reactos.git;a=commitdiff_plain;h=d25d9ea618f7054c1a79423e610159e6a7956ccb;hp=d25d9ea618f7054c1a79423e610159e6a7956ccb

[NTVDM]
- Enable experimental sound support (only PC speaker for the moment, aka. uses beep.sys).
- Introduce a #define WORKING_TIMER which aim is to disable the currently problematic approximate performance counter value calculation done in order not to call QueryPerformanceCounter each time.
  The problem is that we then compute a number of clock ticks for the PIT, which becomes negative, and therefore everything starts to hang.
  Disabling this code and calling each time QueryPerformanceCounter, fixes everything; we gain in precision but we loose in performance...
  A definitive fix must be found, [TheFlash] !!

This fixes sound (and hangs) in Advanced NetWars, Dangerous Dave, ElitePlus and Rescue Rover (the games that I've tested so far).

svn path=/branches/ntvdm/; revision=61875
---