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BT410 5.3.83: MFD-bleed hardening -- the uninitialised half of the 6-bit colour head's translation table

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Operator report: "artifacts bleeding over from the radar display into the
MFDs, I have noticed this in the BT411 builds as well, but does not happen
in the original."

MECHANISM (proven from the archive source, not inferred):

  The ten cockpit heads are not ten framebuffers -- L4GAUGE.CFG gives each
  port a BIT MASK into ONE 16-bit buffer.  The colour head is six bits
  (sec, 0x003F); the MFDs are bits 8-15 of the same words.  A colour-head
  defect can therefore only ever surface as MFD garbage, which is exactly
  the reported shape.

  The two translation-table builders in L4VB16.CPP are asymmetric:

    BuildSecondaryTranslation (:5419) writes ONLY the active-bit
    combinations -- 1<<numberOfBits entries, so 64 of int
    translationTable[256] for this port.  Entries 64..255 are never
    written.

    BuildAuxiliaryTranslation (:5443) nests IncrementInactive inside
    IncrementActive and so fills all 256 -- which is why the mono MFD
    ports are safe by construction and must NOT be touched.

  DrawPixelMap8 (:2708) indexes that table with an 8-BIT source pixel, and
  DrawPoint ORs the result in UNMASKED.  An out-of-range index therefore
  ORs whatever the heap left at translationTable[n] straight into other
  ports' planes.  The colour head's own art carries out-of-range
  sentinels: AVACRIT.PCC is 94% <= 63 with 6% at exactly 231, BTSEC1.PCX
  99.8% <= 63 with 0.2% at 254.  Transparent draws skip them; OPAQUE draws
  put every one through the table.

  That it depends on heap CONTENTS rather than drawing logic explains both
  the intermittency and why BT411 shows it too: both reconstructions
  inherit the same latent read from the archive.

THE CHANGE, via the sanctioned source410-shadows-CODE seam (CODE/ is
untouched): a verbatim copy of CODE/RP/MUNGA_L4/L4GREND.CPP with one
difference -- port construction builds a BTL4GraphicsPort, whose ctor
zeroes translationTable[1<<numberOfBits .. 255] for SECONDARY ports only.
The guard (bit_mask & 0xFF) != 0 is literally the test
BuildSecondaryTranslation itself asserts on.  numberOfBits is a popcount
set in the base ctor, so the subclass body sees 6 and the later
SetSecondaryPalette -> BuildSecondaryTranslation refills 0..63 over the
top without disturbing the zeroed tail.

WHAT IS AND IS NOT PROVEN -- the honest scoreboard:

  PROVEN non-regressive.  Gauge A/B, three boots: unfixed x2 and fixed x1
  score identically on every head (Mfd1 132/0, Mfd2 37/7, Mfd3 23/0,
  Eng1/2/3 and Comm exact), against a ~6px across-boot noise floor
  established by re-booting the same binary.

  NOT PROVEN to cure the symptom.  The A/B rig captures the boot/attract
  cockpit, where the MFD heads already show ZERO extra pixels -- there is
  no bleed there to remove.  The operator's report is in-mission with the
  radar live.  This is a hardening change against a real uninitialised
  read that matches the symptom exactly; the cure needs a mission-state
  capture to confirm.

METHOD NOTE: the first "fixed" capture appeared to regress the MFDs by
~2700px and nearly got the change reverted.  It was a bad grab caught
mid-draw -- rebuild-and-rerun matched the unfixed numbers exactly.  The
two-agreeing-runs rule earned its keep; a single run would have thrown
away a correct change.  Worth noting the noise floor that mattered was
ACROSS boots, not the within-boot floor measured first.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Cyd
2026-07-29 22:12:06 -05:00
co-authored by Claude Fable 5
parent b366da6f1e
commit 7c3d089d9c
1 changed files with 958 additions and 0 deletions
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restoration/source410/MUNGA_L4/L4GREND.CPP
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//===========================================================================//
// File: l4grend.cc //
// Project: MUNGA Brick: LBE4 Gauge Renderer //
// Contents: //
//---------------------------------------------------------------------------//
// Date Who Modification //
// -------- --- ---------------------------------------------------------- //
// 02/10/95 CPB Initial coding. //
// 04/12/95 CPB Moved BuildGraphicsPorts in from RP/BTL4GRND.CPP. //
//---------------------------------------------------------------------------//
// Copyright (C) 1995, Virtual World Entertainment, Inc. All rights reserved //
// PROPRIETARY and CONFIDENTIAL //
//===========================================================================//
#include <mungal4.hpp>
#pragma hdrstop
#if !defined(L4APP_HPP)
# include <l4app.hpp>
#endif
#if !defined(TIME_HPP)
# include <time.hpp> // for profiling
#endif
#if !defined(L4GREND_HPP)
# include <l4grend.hpp>
#endif
#if !defined(L4GAUGE_HPP)
# include <l4gauge.hpp>
#endif
#if !defined(MISSION_HPP)
# include <mission.hpp>
#endif
#if !defined(L4PLASMA_HPP)
# include <l4plasma.hpp>
#endif
#if !defined(NOTATION_HPP)
# include <notation.hpp>
#endif
// #define LOCAL_TEST
#if defined(LOCAL_TEST)
# define Test_Tell(n) cout << n
#else
# define Test_Tell(n)
#endif
//
//#############################################################################
// L4MethodDescription list
//#############################################################################
//
MethodDescription
ChainToPrevious = METHOD_DESCRIPTION_CHAIN(NULL); // Null:end of chain
MethodDescription
*L4MethodDescription[] =
{
&MakeConfigMethodDescription,
&MakeExternConfigMethodDescription,
&BackgroundReconfig::methodDescription,
&BackgroundLine::methodDescription,
&BackgroundRect::methodDescription,
&BackgroundFilledRect::methodDescription,
&BackgroundPixelmap::methodDescription,
&BackgroundBitmap::methodDescription,
&NumericDisplayScalar::methodDescription,
&NumericDisplaySpeed::methodDescription,
&NumericDisplayInteger::methodDescription,
&DigitalClock::methodDescription,
&RankAndScore::methodDescription,
&BarGraphSolidScalar::methodDescription,
&BarGraphPixelMapScalar::methodDescription,
&ColorState::methodDescription,
&TwoState::methodDescription,
&SegmentArcNormalized::methodDescription,
&ChainToPrevious
};
//
//#############################################################################
// L4GaugeRenderer
//#############################################################################
//
L4GaugeRenderer::L4GaugeRenderer():
GaugeRenderer()
{
//
//---------------------------------------------------------------------
// Ensure that graphicsDisplay is NULL
//---------------------------------------------------------------------
//
graphicsDisplay = NULL;
externalDisplay = NULL;
palettesAreActive = True;
scrambleVideoFlag = False;
char
*mode_string = getenv("L4GAUGE");
//
//---------------------------------------------------------------------
// NOTE that L4Application::Initialize() searches for the environment
// variable "L4GAUGE" to determine whether or not to create
// a gauge renderer.
//---------------------------------------------------------------------
//
if (mode_string != NULL)
{
//
//---------------------------------------------------------------------
// Attempt to initialize external display
//---------------------------------------------------------------------
//
char
*plasma_string = getenv("L4PLASMA");
if (plasma_string != NULL)
{
if (strnicmp(plasma_string, "COM2", 4) == 0)
{
Tell("Plasma display created on COM2\n");
externalDisplay = new PlasmaDisplay(PCS_COM2);
}
else
{
Tell("Plasma display created on COM1\n");
externalDisplay = new PlasmaDisplay(PCS_COM1);
}
if (externalDisplay != NULL)
{
Register_Object(externalDisplay);
}
}
//
//---------------------------------------------------------------------
// Attempt to initialize main display
//---------------------------------------------------------------------
//-------------------------------------------------
// Search notation file for specified resolution
//-------------------------------------------------
//
NotationFile
notation_file("GAUGE\\L4GAUGE.INI");
if (!notation_file.PageExists(mode_string))
{
Tell("L4GaugeRenderer::L4GaugeRenderer - '" <<
mode_string <<
"' not found in L4GAUGE.INI!\n"
);
}
else
{
//
//-------------------------------------------------
// Requested resolution exists, read parameters
//-------------------------------------------------
//
int
mode(0),
width(640),
height(480),
page_size(64),
gran(64),
bpl(640*2),
pfp(0),
special(0),
q(0);
q += notation_file.GetEntry(mode_string, "mode", &mode);
q += notation_file.GetEntry(mode_string, "width", &width);
q += notation_file.GetEntry(mode_string, "height", &height);
q += notation_file.GetEntry(mode_string, "sizeInKB", &page_size);
q += notation_file.GetEntry(mode_string, "granularityInKB", &gran);
q += notation_file.GetEntry(mode_string, "bytesPerLine", &bpl);
q += notation_file.GetEntry(mode_string, "pageFcnPtr", &pfp);
q += notation_file.GetEntry(mode_string, "special", &special);
if (q == 8)
{
graphicsDisplay = new
SVGA16(
mode,
width,
height,
page_size,
gran,
bpl,
pfp,
special
);
if (graphicsDisplay != NULL)
{
Register_Object(graphicsDisplay);
}
}
}
}
Check_Fpu();
}
//
//#############################################################################
// ~L4GaugeRenderer
//#############################################################################
//
L4GaugeRenderer::~L4GaugeRenderer()
{
# if defined (LOCAL_TEST)
Tell("L4GaugeRenderer::~L4GaugeRenderer()\n");
# endif
Check(this);
int i;
//----------------------------------------------------
// Make sure all gauges removed first
//----------------------------------------------------
Remove(0);
//----------------------------------------------------
// Delete the graphics ports
//----------------------------------------------------
for(i=0; i<maximumGraphicsPorts; ++i)
{
if (graphicsPort[i] != NULL)
{
Check(graphicsPort[i]);
Unregister_Object(graphicsPort[i]);
delete graphicsPort[i];
}
}
if (graphicsDisplay != NULL)
{
Check(graphicsDisplay);
Unregister_Object(graphicsDisplay);
delete graphicsDisplay;
}
if (externalDisplay != NULL)
{
Check(externalDisplay);
Unregister_Object(externalDisplay);
delete externalDisplay;
}
Check_Fpu();
}
//
//#############################################################################
// LocalEmergencyShutdown - restore the ABSOLUTE MINIMUM to get back
// to the system!
//#############################################################################
//
void
L4GaugeRenderer::LocalEmergencyShutdown()
{
if (graphicsDisplay != NULL)
{
// It's an EMERGENCY: a 'verify' somewhere may have already failed.
// Therefore don't check it, just kill it!
delete graphicsDisplay;
}
GaugeRenderer::LocalEmergencyShutdown();
}
//
//#############################################################################
// TestInstance
//#############################################################################
//
Logical
L4GaugeRenderer::TestInstance() const
{
return GaugeRenderer::TestInstance();
}
//
//#############################################################################
// StartImplementation
//#############################################################################
//
void
L4GaugeRenderer::LoadMissionImplementation(Mission *mission)
{
Check(this);
# if defined (LOCAL_TEST)
Tell("L4GaugeRenderer::LoadMissionImplementation()\n");
# endif
GaugeRenderer::LoadMissionImplementation(mission);
Check_Fpu();
}
//
//#############################################################################
// StopImplementation
//#############################################################################
//
void
L4GaugeRenderer::ShutdownImplementation()
{
Check(this);
# if defined (LOCAL_TEST)
Tell("L4GaugeRenderer::ShutdownImplementation()\n");
# endif
// EVENTUALLY kill all interrupt-driven processes (if they exist)
GaugeRenderer::ShutdownImplementation();
Check_Fpu();
}
//
//#############################################################################
// SuspendImplementation
//#############################################################################
//
void
L4GaugeRenderer::SuspendImplementation()
{
Check(this);
# if defined (LOCAL_TEST)
Tell("L4GaugeRenderer::SuspendImplementation()\n");
# endif
GaugeRenderer::SuspendImplementation();
Check_Fpu();
}
//
//#############################################################################
// ResumeImplementation
//#############################################################################
//
void
L4GaugeRenderer::ResumeImplementation()
{
Check(this);
# if defined (LOCAL_TEST)
Tell("L4GaugeRenderer::ResumeImplementation()\n");
# endif
GaugeRenderer::ResumeImplementation();
Check_Fpu();
}
//
//#############################################################################
// ExecuteForeground
//#############################################################################
//
void
L4GaugeRenderer::ExecuteForeground()
{
Check(this);
//---------------------------------------
// We must call the ancestral method!
//---------------------------------------
GaugeRenderer::ExecuteForeground();
//---------------------------------------
// Process special effects
//---------------------------------------
if (graphicsDisplay != NULL)
{
Check(graphicsDisplay);
ProcessVideoEffects();
((SVGA16 *) graphicsDisplay)->UpdatePalette();
}
Check_Fpu();
}
//
//#############################################################################
// ExecuteImplementation
//#############################################################################
//
Logical
L4GaugeRenderer::ExecuteBackgroundDisplayUpdate()
{
Check(this);
Logical
result = False; // False == 'all done'
//--------------------------------------------------------
// Update external annunciator
//
// Allow the plasma display to continue if there's
// more background time available.
//
// This method is still called if taskmode is set to
// 'foreground'. If it's called in 'foreground' mode,
// it really means that we're still waiting for foreground
// to begin processing, so we might as well update the
// external display (if needed).
//--------------------------------------------------------
if (externalDisplay != NULL)
{
Check(externalDisplay);
result = externalDisplay->Update(False); // returns 'False' if done
}
//-------------------------------------------------------
// Update display ONLY in 'copy' mode
//--------------------------------------------------------
if (taskMode == copy)
{
if (graphicsDisplay != NULL)
{
Check(graphicsDisplay);
if (graphicsDisplay->Update(False) == False)
{
//--------------------------------------------------------
// Tell executionImplementation that we're basically done.
//--------------------------------------------------------
taskMode = foreground;
}
else
{
result = True; // We're not done yet!
}
}
}
return result;
}
//
//#############################################################################
// NotifyOfNewInterestingEntity
//#############################################################################
//
void
L4GaugeRenderer::NotifyOfNewInterestingEntity(
Entity *interesting_entity
)
{
SET_GAUGE_RENDERER();
Check(this);
Check(interesting_entity);
//----------------------------------------------
// Make sure gaugeImage exists for entity
//----------------------------------------------
Check(warehousePointer);
((L4Warehouse*)warehousePointer)->gaugeImageBin.Get(
interesting_entity->GetResourceID()
);
//----------------------------------------------
// Update gaugeRenderer
//----------------------------------------------
GaugeRenderer::NotifyOfNewInterestingEntity(interesting_entity);
Check_Fpu();
CLEAR_GAUGE_RENDERER();
}
//
//#############################################################################
// NotifyOfBecomingUninterestingEntity
//#############################################################################
//
void
L4GaugeRenderer::NotifyOfBecomingUninterestingEntity(
Entity *uninteresting_entity
)
{
SET_GAUGE_RENDERER();
Check(this);
Check(uninteresting_entity);
//----------------------------------------------
// Remove gaugeImage if no longer used
//----------------------------------------------
Check(warehousePointer);
((L4Warehouse*)warehousePointer)->gaugeImageBin.Release(
uninteresting_entity->GetResourceID()
);
//----------------------------------------------
// Update gaugeRenderer
//----------------------------------------------
GaugeRenderer::NotifyOfBecomingUninterestingEntity(uninteresting_entity);
Check_Fpu();
CLEAR_GAUGE_RENDERER();
}
//
//#############################################################################
// BuildGraphicsPort
//#############################################################################
//===========================================================================//
// RECONSTRUCTION SHADOW (source410 overrides CODE per build410.sh srcfor).
//
// Verbatim copy of CODE/RP/MUNGA_L4/L4GREND.CPP with ONE change: the port
// construction below builds a BTL4GraphicsPort instead of an L4GraphicsPort,
// to close the MFD-bleed artifact. Everything else is the archive's.
//
// THE ARTIFACT (operator report 2026-07-29: "artifacts bleeding over from the
// radar display into the MFDs ... I have noticed this in the BT411 builds as
// well, but does not happen in the original"):
//
// * The colour head is SIX BITS (L4GAUGE.CFG:4395, sec mask 0x003F) and the
// MFDs are bits 8-15 of the SAME 16-bit words -- one plane-packed
// framebuffer, so a colour-head defect can only surface as MFD garbage.
// * L4GraphicsPort::BuildSecondaryTranslation (L4VB16.CPP:5419) enumerates
// only the ACTIVE-bit combinations, filling 1<<numberOfBits entries of
// int translationTable[256] -- 64 for this port. Entries 64..255 are
// never written. Note the asymmetry: BuildAuxiliaryTranslation nests an
// IncrementInactive loop inside IncrementActive and so fills all 256,
// which is why the MONO MFD ports are safe by construction.
// * DrawPixelMap8 (L4VB16.CPP:2708) indexes that table with an 8-BIT source
// pixel and DrawPoint ORs the result in UNMASKED, so an out-of-range
// entry puts arbitrary bits into other ports' planes.
// * The colour head's own art carries out-of-range SENTINELS: AVACRIT.PCC
// is 94% <= 63 with 6% at exactly 231; BTSEC1.PCX is 99.8% <= 63 with
// 0.2% at 254. Drawn transparent they are skipped; drawn OPAQUE every
// pixel goes through the table.
//
// Why the original is PROBABLY clean (hypothesis, not proven): the port is
// heap-allocated, and an allocation that happens to arrive zeroed makes those
// reads colour 0 -- black, and invisible on a black head. Our heap has a
// different history. That would also explain why the artifact is
// INTERMITTENT and why the operator sees it in the BT411 builds too: it
// depends on heap CONTENTS, not on any drawing logic, and both reconstructions
// inherit the same latent read from the archive.
//
// The fix does not change drawing behaviour -- it only guarantees the
// out-of-range case draws colour 0, i.e. contributes no bits under DrawPoint's
// OR. That is the most conservative possible outcome and matches what the
// shipped binary is observed to do.
//
// VERIFICATION STATUS (2026-07-29) -- read this before believing the fix:
//
// * The MECHANISM is proven from the archive source (the two builders'
// asymmetric loops, above). That part is solid.
// * The FIX IS PROVEN NON-REGRESSIVE on the gauge A/B rig: three boots
// (unfixed x2, fixed x1) score identically on every head, Mfd1 132/0,
// Mfd2 37/7, Mfd3 23/0, within a ~6px across-boot noise floor.
// * The FIX IS NOT YET PROVEN TO CURE THE REPORTED SYMPTOM. The A/B rig's
// capture point is the boot/attract cockpit, where the MFD heads already
// show ZERO extra pixels -- there is no bleed there to remove. The
// operator's report is from an in-mission cockpit with the radar live.
// Confirming the cure needs a mission-state capture; until then this is a
// hardening change against a real uninitialised read, not a demonstrated
// cure.
//
// A first "fixed" capture appeared to REGRESS the MFDs by ~2700px. It was a
// bad grab (caught mid-draw); the rebuild-and-rerun matched the unfixed
// numbers exactly. Recorded here because the two-runs rule is what caught it.
//===========================================================================//
class BTL4GraphicsPort :
public L4GraphicsPort
{
public:
BTL4GraphicsPort(
Video16BitBuffered *graphics_display,
const char *name,
int rotation,
int bit_mask,
SVGA16::PaletteID palette_ID,
L4GraphicsPort::ChannelEnableID channel_enable
):
L4GraphicsPort(
graphics_display, name, rotation, bit_mask,
palette_ID, channel_enable
)
{
//
// SECONDARY ports only. The low byte non-zero is exactly the
// test BuildSecondaryTranslation asserts on
// (Verify((bitMask & 0xFF) != 0)); an AUXILIARY port fills all
// 256 entries itself and must not be touched.
//
if ((bit_mask & 0xFF) != 0)
{
int
first = 1 << numberOfBits,
i;
for (i = first; i < 256; ++i)
{
translationTable[i] = 0;
}
}
}
};
//
void
L4GaugeRenderer::BuildGraphicsPort(
int port_number,
const char *name,
int rotation,
int bitAllocation,
SVGA16::PaletteID palette_ID,
L4GraphicsPort::ChannelEnableID enable_ID,
Palette8 *palette
)
{
Test_Tell("L4GaugeRenderer::BuildGraphicsPort\n");
Check(this);
if (graphicsDisplay != NULL)
{
Test_Tell("...non-NULL display\n");
Verify(port_number < maximumGraphicsPorts);
Verify(port_number >= 0);
Test_Tell("...port_number= " << port_number << "\n");
//
//---------------------------------------------------------
// If it already exists, delete it
//---------------------------------------------------------
//
L4GraphicsPort
*graphics_port = (L4GraphicsPort *) graphicsPort[port_number];
if (graphics_port != NULL)
{
Test_Tell("...deleting existing port\n");
Check(graphics_port);
Unregister_Object(graphics_port);
delete graphics_port;
}
//
//---------------------------------------------------------
// Attempt to create it
//---------------------------------------------------------
//
graphicsPort[port_number] = new BTL4GraphicsPort(
(Video16BitBuffered *) graphicsDisplay,
name,
rotation,
bitAllocation,
palette_ID,
enable_ID
);
graphics_port = (L4GraphicsPort *) graphicsPort[port_number];
Test_Tell("...new port at " << graphics_port << "\n");
//
//---------------------------------------------------------
// If created, register it and build the palette
//---------------------------------------------------------
//
if (graphics_port != NULL)
{
Check(graphics_port);
Register_Object(graphics_port);
//
// Set the palette for the port
// (Note: secondary uses lowest 8 bits)
//
if ((bitAllocation > 0) && (bitAllocation < 0x0100))
{
Test_Tell("...secondary\n");
graphics_port->SetSecondaryPalette(palette);
}
else
{
Test_Tell("...auxiliary\n");
graphics_port->SetAuxiliaryPalette();
}
}
}
Check_Fpu();
}
//
//#############################################################################
// RemapGraphicsPort
//#############################################################################
//
void
L4GaugeRenderer::RemapGraphicsPort(
int port_number,
SVGA16::PaletteID palette_ID,
L4GraphicsPort::ChannelEnableID enable_ID,
Palette8 *palette
)
{
Check(this);
Test_Tell("L4GaugeRenderer::RemapGraphicsPort\n");
if (graphicsDisplay != NULL)
{
Test_Tell("...non-NULL display\n");
Verify(port_number < maximumGraphicsPorts);
Verify(port_number >= 0);
Test_Tell("...port_number= " << port_number << "\n");
//---------------------------------------------------------
// If it exists, change the palette ID and set the palette
//---------------------------------------------------------
L4GraphicsPort
*graphics_port = (L4GraphicsPort *) graphicsPort[port_number];
if (graphics_port != NULL)
{
Check(graphics_port);
//
// Set the palette ID
//
graphics_port->SetPaletteID(palette_ID);
graphics_port->SetEnableID(enable_ID);
//
// Set the palette for the port
// (Note: secondary uses lowest 8 bits)
//
int
bit_mask = graphics_port->GetBitMask();
if (bit_mask & 0x00FF) // must be secondary
{
Test_Tell("...secondary\n");
Verify(palette != NULL);
graphics_port->SetSecondaryPalette(palette);
}
else
{
Test_Tell("...auxiliary\n");
graphics_port->SetAuxiliaryPalette();
}
}
}
Check_Fpu();
}
//
//#############################################################################
// BuildExternalGraphicsPort
//#############################################################################
//
void
L4GaugeRenderer::BuildExternalGraphicsPort(
int port_number,
const char *name,
int /*bitAllocation*/
)
{
Check(this);
Test_Tell(
"L4GaugeRenderer::BuildExternalGraphicsPort(" << port_number << ")\n"
);
if (externalDisplay != NULL)
{
Test_Tell("...non-NULL display\n");
Verify(port_number < maximumGraphicsPorts);
Verify(port_number >= 0);
Test_Tell("...port_number= " << port_number << "\n");
//
//---------------------------------------------------------
// If it already exists, delete it
//---------------------------------------------------------
//
L4GraphicsPort
*graphics_port = (L4GraphicsPort *) graphicsPort[port_number];
if (graphics_port != NULL)
{
Test_Tell("...deleting existing port\n");
Check(graphics_port);
Unregister_Object(graphics_port);
delete graphics_port;
}
//
//---------------------------------------------------------
// Attempt to create it
//---------------------------------------------------------
//
graphicsPort[port_number] = new L4BytePort(
(Video8BitBuffered *) externalDisplay,
name,
0 // rotation
);
graphics_port = (L4GraphicsPort *) graphicsPort[port_number];
Test_Tell("...new port at " << graphics_port << "\n");
//
//---------------------------------------------------------
// If created, register it
//---------------------------------------------------------
//
if (graphics_port != NULL)
{
Check(graphics_port);
Register_Object(graphics_port);
}
}
Check_Fpu();
}
//
//#############################################################################
// FadeToWhite, FadeToGame
//#############################################################################
//
void
L4GaugeRenderer::FadeToWhite(Scalar number_of_seconds)
{
Check(this);
Verify(number_of_seconds >= 0.0); // zero is allowed (instant change)
// cout << "L4GaugeRenderer::FadeToWhite(" << number_of_seconds << ")\n";
if (graphicsDisplay != NULL)
{
Check(graphicsDisplay);
((SVGA16 *)graphicsDisplay)->FadeToWhite(number_of_seconds);
}
Check_Fpu();
}
void
L4GaugeRenderer::FadeToNormal(Scalar number_of_seconds)
{
Check(this);
Verify(number_of_seconds >= 0.0); // zero is allowed (instant change)
// cout << "L4GaugeRenderer::FadeToNormal(" << number_of_seconds << ")\n";
if (graphicsDisplay != NULL)
{
Check(graphicsDisplay);
((SVGA16 *)graphicsDisplay)->FadeToPalettes(number_of_seconds);
}
Check_Fpu();
}
//
//#############################################################################
// Configure
//#############################################################################
//
void
L4GaugeRenderer::ConfigureForModel(
const char *configuration_name,
Entity *entity
)
{
Check(this);
Check_Pointer(configuration_name);
Test_Tell(
"L4GaugeRenderer::ConfigureForModel(" <<
configuration_name << ", " <<
entity << ")\n"
);
Check(application);
Check(entity);
Mission
*mission = application->GetCurrentMission();
Check(mission);
const char
*model_name = mission->GetGameModel();
Check_Pointer(model_name);
char
full_name[64];
Str_Copy(full_name, model_name, sizeof(full_name));
Str_Cat(full_name, configuration_name, sizeof(full_name));
Test_Tell(
"L4GaugeRenderer::ConfigureForModel, full_name=" << full_name <<
")\n"
);
Configure(full_name, entity);
Check_Fpu();
}
//
//#############################################################################
// SpecialEffect
//#############################################################################
//
void
L4GaugeRenderer::SpecialEffect(
VideoEffectType type,
Scalar duration
)
{
Check(this);
switch (type)
{
case scrambleVideo:
if (graphicsDisplay != NULL)
{
scrambleVideoFlag = True;
scrambleVideoTimeout = ((Scalar)Now()) + duration;
Check(graphicsDisplay);
((SVGA16*) graphicsDisplay)->FunkyVideo(True);
}
break;
// other modes go here
}
Check_Fpu();
}
void
L4GaugeRenderer::ProcessVideoEffects()
{
Check(this);
Check(graphicsDisplay);
Time
now = Now();
if (scrambleVideoFlag)
{
if (now >= scrambleVideoTimeout)
{
scrambleVideoFlag = False;
((SVGA16*) graphicsDisplay)->FunkyVideo(False);
}
}
Check_Fpu();
}
//--------------------------------------------------------------------
// Profiling support
//--------------------------------------------------------------------
Scalar
L4GaugeRenderer::GetCurrentFramePercentage()
{
Check(this);
return Get_Frame_Percent_Used();
}