Emulation/DirkSimple
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Added a fake laserdisc seek lag.

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This blacks out the screen for a bit between seeks and gameplay resuming.

Right now there isn't code to enable this, but eventually I'll hook up
cvars at the engine level and add this.
This commit is contained in:
Ryan C. Gordon 2023-04-06 22:11:17 -04:00
parent 66cc856529
commit 969c9f5653
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GPG key ID: FA148B892AB48044
1 changed files with 20 additions and 0 deletions
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20
dirksimple.c
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@ -14,6 +14,7 @@
#include "lualib.h"
#define DIRKSIMPLE_LUA_NAMESPACE "DirkSimple"
#define DIRKSIMPLE_FAKE_DISC_LAG_TICKS 800
// "included in all copies or substantial portions of the Software"
static const char *GLuaLicense =
@ -91,6 +92,8 @@ static uint64_t GClipStartMs = 0; // Milliseconds into video stream that start
static uint64_t GClipStartTicks = 0; // GTicks when clip started playing
static int GHalted = 0;
static int GShowingSingleFrame = 0;
static int GFakeDiscLag = 0;
static uint64_t GDiscLagUntilTicks = 0;
static unsigned int GSeekGeneration = 0;
static int GNeedInitialLuaTick = 1;
static const THEORAPLAY_VideoFrame *GPendingVideoFrame = NULL;
@ -808,6 +811,10 @@ static void DirkSimple_show_single_frame(uint32_t startms)
GClipStartTicks = 0;
GHalted = 0;
GShowingSingleFrame = 1;
if (GFakeDiscLag) {
DirkSimple_discvideo(GBlankVideoFrame);
GDiscLagUntilTicks = GTicks + DIRKSIMPLE_FAKE_DISC_LAG_TICKS;
}
}
}
@ -829,6 +836,10 @@ static void DirkSimple_start_clip(uint32_t startms)
GClipStartTicks = 0;
GHalted = 0;
GShowingSingleFrame = 0;
if (GFakeDiscLag) {
DirkSimple_discvideo(GBlankVideoFrame);
GDiscLagUntilTicks = GTicks + DIRKSIMPLE_FAKE_DISC_LAG_TICKS;
}
}
}
@ -1501,6 +1512,8 @@ void DirkSimple_shutdown(void)
GAudioChannels = 0;
GAudioFreq = 0;
GPendingVideoFrame = NULL;
GFakeDiscLag = 0;
GDiscLagUntilTicks = 0;
DirkSimple_free(GBlankVideoFrame);
GBlankVideoFrame = NULL;
DirkSimple_free(GGameName);
@ -1782,6 +1795,13 @@ static void DirkSimple_tick_impl(uint64_t monotonic_ms, uint64_t inputbits)
GPendingVideoFrame = THEORAPLAY_getVideo(GDecoder);
}
if (GDiscLagUntilTicks) {
if (GDiscLagUntilTicks > GTicks) {
return; // we're faking the stall while the laserdisc player seeks to a new position. Done for now.
}
GDiscLagUntilTicks = 0;
}
// has seek completed? Sync us back up.
if (GPendingVideoFrame && (GClipStartTicks == 0)) {
GClipStartTicks = GTicks;