| Commit message (Collapse) | Author | Age | Files | Lines |
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to new license tagged form.
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under standard BSD license.
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decoded VBI data. Added plumbing for allowing for overall brightness/
contrast/gamma corrections on laserdisc video. Fixed bug when combining
brightness values in the palette logic.
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metadata with pre-decoded frame information. Modified chdman to
automatically produce this for CHDs that are of the appropriate
parameters. To fix up existing CHDs, use chdman -fixavdata on the
CHD.
Modified the laserdisc core to leverage the pre-decoded frame
metadata, which is now required. This improves seek times when
searching and allows the player-specific emulation access to the
VBI data as soon as it would really be available. Changed update
callback timing to fire just before the first line of VBI data
would be read; at that point, the frame selection is assumed to
be committed.
Converted PR-8210 emulation over to using the actual MCU from the
laserdisc player. This MCU controls low-level functions such as
slider position and laser on/off, and receives decoded vertical
blanking data in order to make decisions. Removed old HLE behavior.
Note that the overlay text is displayed via the UI; this is
temporary and will be fixed shortly.
Converted Simutrek-hacked laserdisc emulation to using the actual
MCU from the game, which in turn hands off commands to the PR-8210
MCU. This is still not 100% but is pretty close at this point and
achieves the correct behaviors in most cases.
Fixed Cube Quest overlay scaling to cover the whole screen.
Changed laserdisc video parameters to position the screen area at
the bottom rather than the top, since this corresponds more closely
to standard line numbering.
Extended the vbiparse code to support pack/unpack, and to more
fully document all the meanings of the VBI codes.
Updated ldplayer to support slow/fast forward movement, frame/chapter
display, and separate controls for scanning/stepping.
Added new built-in variable "frame" to the debugger.
Fixed device-based ROM loading to support loading ROMs from the
game's ZIP as well.
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and reports if no white flags were seen.
Fixed bug in aviio.c which could cause an infinite loop if attempting
to read sound beyond the end of the file.
Rewrote the white flag detection to use a histogram for outlier detection
and peak identification.
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tool which walks through either an AVI or CHD capture from a
laserdisc and ensures that there are no anomalies lurking in
the VBI data.
Added new option to chdman, where if you use -createav with
a special filename (either 2:2 or 3:2) it will create a fake
laserdisc files with the equivalent cadence. This can be used
for testing until full captures are available. Most games used
2:2 apart from Dragon's Lair and Space Ace, which were 3:2.
Note that even though these files are essentially blank, they
are Huffman-compressed, meaning that the maximum compression
ratio you will get is 8:1, so they still end up ~5GB.
Moved error strings from chdman.c to chd.c, where they can be
fetched from any caller via the new chd_error_string()
function.
Updated vbiparse to improve Manchester code decoding. It now
assigns a confidence level per bit based on how solid the
data is. Also added a new function vbi_parse_all which parses
the white flag and all three lines of metadata from a
laserdisc frame. It then compares line 17 and 18 against each
other and selects the most likely candidate based on per-bit
confidence and other factors.
Added frame number display to laserdsc.c. It is off by
default, though most players can be configured to turn it on
(not sure if any actually do). It can be manually toggled via
the backslash key during playback.
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Commander (MACH 3 hardware). Old laserdisc hacks are now removed.
The code now talks to the standard Pioneer PR-8210 interface. Also
removed hacky "target list" from the MACH 3 ROMs; this information
is now decoded on the fly from the right channel laserdisc audio.
Other Gottlieb cleanups:
- moved sound inputs to audio/gottlieb and included them in
all relevant drivers
- ordered input ports and ROM definitions consistently
Other laserdisc changes:
- changed PR-8210 interface to work consistently for both Gottlieb
and Stern games
- added audio callback mechanism to allow drivers to peek at the
raw audio streams
- extended the VBI parser to be even more lenient
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now simply requires an AVI file input.
Relaxed VBI Manchester code clocking to allow for a little bit
of wiggle when finding the clock.
Changed laserdisc support to parse white flags and other data
from the VBI data directly, rather than relying on the textual
metadata. Expanded video frame cache to 3. Changed the way
frames are assembled to decrease the likelihood of getting an
interlaced weave. Fixed sound creation so that it is done at
reset time instead of device start, when the sound devices aren't
yet live.
Fixed bug in winwork that caused the creation of single work
items to return NULL, and thus lead to massive memory leaks when
using A/V CHDs.
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Rewrote Philips code parsing to be clock based.
Updated makemeta to call the new function.
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