210 lines
10 KiB
C#
210 lines
10 KiB
C#
using System.Buffers.Binary;
|
|
using Age.Engine.Model;
|
|
|
|
namespace Age.Engine.Persistence;
|
|
|
|
internal static class NativeGfxPersistenceCodec
|
|
{
|
|
private const int SurfaceCount = 1000;
|
|
private const int SurfaceRecordSize = 20;
|
|
|
|
public static (
|
|
byte[] SurfaceRecords,
|
|
IReadOnlyList<NativeSavedGfxObject> Objects,
|
|
long RangeFirst,
|
|
int RangeCount,
|
|
byte[] RangeRecord) Capture(GfxState gfx)
|
|
{
|
|
GfxPersistenceSnapshot snapshot = gfx.CapturePersistenceSnapshot();
|
|
byte[] surfaces = new byte[NativeNumberedSaveState.SurfaceRecordsSize];
|
|
for (int slot = 0; slot < SurfaceCount; slot++)
|
|
WriteInt(surfaces, slot * SurfaceRecordSize, -1);
|
|
foreach (GfxSurfacePersistenceState surface in snapshot.Surfaces)
|
|
{
|
|
if ((uint)surface.Slot >= SurfaceCount) continue;
|
|
int at = surface.Slot * SurfaceRecordSize;
|
|
WriteInt(surfaces, at,
|
|
surface.Created ? -1 : unchecked((int)surface.ResourceId));
|
|
WriteInt(surfaces, at + 4, PackNativeColorKey(surface.ColorKey));
|
|
WriteInt(surfaces, at + 8, surface.ReloadOnRestore ? 1 : 0);
|
|
WriteInt(surfaces, at + 0x10, surface.Created ? 1 : 0);
|
|
}
|
|
NativeSavedGfxObject[] objects = snapshot.Objects
|
|
.Select(item => new NativeSavedGfxObject(item.Handle, EncodeObject(item.Object)))
|
|
.ToArray();
|
|
return (
|
|
surfaces, objects, snapshot.RangeFirst, unchecked((int)snapshot.RangeCount),
|
|
EncodeObject(snapshot.RangeTransform));
|
|
}
|
|
|
|
public static GfxPersistenceSnapshot Decode(NativeNumberedSaveState state)
|
|
{
|
|
var surfaces = new List<GfxSurfacePersistenceState>();
|
|
for (int slot = 0; slot < SurfaceCount; slot++)
|
|
{
|
|
int at = slot * SurfaceRecordSize;
|
|
int resourceId = ReadInt(state.SurfaceRecords, at);
|
|
bool reload = ReadInt(state.SurfaceRecords, at + 8) == 1;
|
|
bool created = ReadInt(state.SurfaceRecords, at + 0x10) == 1;
|
|
if (resourceId >= 0 || reload || created)
|
|
surfaces.Add(new GfxSurfacePersistenceState(
|
|
slot,
|
|
resourceId < 0 ? resourceId : unchecked((uint)resourceId),
|
|
UnpackNativeColorKey(ReadInt(state.SurfaceRecords, at + 4)),
|
|
created,
|
|
reload));
|
|
}
|
|
var objects = state.GfxObjects
|
|
.Select(item => (item.Handle, DecodeObject(item.Record)))
|
|
.ToArray();
|
|
return new GfxPersistenceSnapshot(
|
|
surfaces, objects, state.RangeTransformFirst, state.RangeTransformCount,
|
|
DecodeObject(state.RangeTransformRecord));
|
|
}
|
|
|
|
private static byte[] EncodeObject(GfxState.GfxObject value)
|
|
{
|
|
byte[] raw = new byte[NativeNumberedSaveState.GfxRecordSize];
|
|
int flags = value.Visible ? 1 : 0;
|
|
if (value.RotationEnabled || value.SrcAnim || value.ColorAnim) flags |= 4;
|
|
WriteInt(raw, 0, flags);
|
|
WriteInt(raw, 4, value.SourceSlot);
|
|
WriteInt(raw, 8, value.SrcRect.X);
|
|
WriteInt(raw, 0x0c, value.SrcRect.Y);
|
|
WriteInt(raw, 0x10, checked(value.SrcRect.X + value.SrcRect.W));
|
|
WriteInt(raw, 0x14, checked(value.SrcRect.Y + value.SrcRect.H));
|
|
WriteVector(raw, 0x18, value.V18);
|
|
WriteVector(raw, 0x24, value.V24);
|
|
WriteInt(raw, 0x30, unchecked((int)value.StaticColorMode));
|
|
WriteInt(raw, 0x34, unchecked((int)value.OneShotStartMs));
|
|
WriteInt(raw, 0x38, unchecked((int)value.ColorDelayMs));
|
|
WriteInt(raw, 0x3c, unchecked((int)value.ScaleDelayMs));
|
|
WriteInt(raw, 0x40, unchecked((int)value.RotationDelayMs));
|
|
WriteInt(raw, 0x44, unchecked((int)value.TranslationDelayMs));
|
|
WriteInt(raw, 0x4c, unchecked((int)value.ColorDurationMs));
|
|
WriteInt(raw, 0x50, unchecked((int)value.ScaleDurationMs));
|
|
WriteInt(raw, 0x54, unchecked((int)value.RotationDurationMs));
|
|
WriteInt(raw, 0x58, unchecked((int)value.TranslationDurationMs));
|
|
WriteInt(raw, 0x60, unchecked((int)value.Color));
|
|
WriteInt(raw, 0x64, unchecked((int)value.OneShotColorTarget));
|
|
WriteScaleMatrix(raw, 0x6c, value.ScaleCurrent);
|
|
WriteScaleMatrix(raw, 0xac, value.ScaleTarget);
|
|
WriteFloat(raw, 0x16c, value.TranslationCurrent.X);
|
|
WriteFloat(raw, 0x170, value.TranslationCurrent.Y);
|
|
WriteFloat(raw, 0x174, value.TranslationCurrent.Z);
|
|
WriteFloat(raw, 0x1ac, value.TranslationTarget.X);
|
|
WriteFloat(raw, 0x1b0, value.TranslationTarget.Y);
|
|
WriteFloat(raw, 0x1b4, value.TranslationTarget.Z);
|
|
WriteInt(raw, 0x20c, unchecked((int)value.ColorStart));
|
|
WriteInt(raw, 0x214, unchecked((int)value.RotationStartMs));
|
|
WriteInt(raw, 0x220, unchecked((int)value.ColorPeriod));
|
|
WriteInt(raw, 0x228, unchecked((int)value.RotationPeriodMs));
|
|
WriteInt(raw, 0x230, unchecked((int)value.SrcPeriod));
|
|
WriteInt(raw, 0x234, unchecked((int)value.SrcCell));
|
|
WriteInt(raw, 0x238, unchecked((int)value.SrcFrameCount));
|
|
WriteInt(raw, 0x23c, unchecked((int)value.SrcColumns));
|
|
WriteInt(raw, 0x240, unchecked((int)value.ColorTarget));
|
|
WriteVector(raw, 0x244, value.RotationAxis);
|
|
WriteInt(raw, 0x2d0, unchecked((int)value.OneShotAnimationControlFlags));
|
|
return raw;
|
|
}
|
|
|
|
private static GfxState.GfxObject DecodeObject(ReadOnlySpan<byte> raw)
|
|
{
|
|
if (raw.Length != NativeNumberedSaveState.GfxRecordSize)
|
|
throw new InvalidDataException("Native retained-gfx record has the wrong size.");
|
|
int left = ReadInt(raw, 8), top = ReadInt(raw, 0x0c);
|
|
int right = ReadInt(raw, 0x10), bottom = ReadInt(raw, 0x14);
|
|
int flags = ReadInt(raw, 0);
|
|
return new GfxState.GfxObject
|
|
{
|
|
Visible = (flags & 1) != 0,
|
|
SourceSlot = ReadInt(raw, 4),
|
|
SrcRect = (left, top, right - left, bottom - top),
|
|
V18 = ReadLongVector(raw, 0x18),
|
|
V24 = ReadLongVector(raw, 0x24),
|
|
StaticColorMode = ReadInt(raw, 0x30),
|
|
OneShotStartMs = ReadInt(raw, 0x34),
|
|
ColorDelayMs = ReadInt(raw, 0x38),
|
|
ScaleDelayMs = ReadInt(raw, 0x3c),
|
|
RotationDelayMs = ReadInt(raw, 0x40),
|
|
TranslationDelayMs = ReadInt(raw, 0x44),
|
|
ColorDurationMs = ReadInt(raw, 0x4c),
|
|
ScaleDurationMs = ReadInt(raw, 0x50),
|
|
RotationDurationMs = ReadInt(raw, 0x54),
|
|
TranslationDurationMs = ReadInt(raw, 0x58),
|
|
Color = unchecked((uint)ReadInt(raw, 0x60)),
|
|
HasColor = ReadInt(raw, 0x60) != -1,
|
|
OneShotColorTarget = unchecked((uint)ReadInt(raw, 0x64)),
|
|
ScaleCurrent = ReadScale(raw, 0x6c),
|
|
ScaleTarget = ReadScale(raw, 0xac),
|
|
TranslationCurrent = ReadDoubleVector(raw, 0x16c),
|
|
V16c = ReadLongFloatVector(raw, 0x16c),
|
|
TranslationTarget = ReadDoubleVector(raw, 0x1ac),
|
|
ColorStart = ReadInt(raw, 0x20c),
|
|
RotationStartMs = ReadInt(raw, 0x214),
|
|
ColorPeriod = ReadInt(raw, 0x220),
|
|
RotationPeriodMs = ReadInt(raw, 0x228),
|
|
SrcPeriod = ReadInt(raw, 0x230),
|
|
SrcCell = ReadInt(raw, 0x234),
|
|
SrcFrameCount = Math.Max(1, ReadInt(raw, 0x238)),
|
|
SrcColumns = Math.Max(1, ReadInt(raw, 0x23c)),
|
|
ColorTarget = unchecked((uint)ReadInt(raw, 0x240)),
|
|
RotationAxis = ReadLongVector(raw, 0x244),
|
|
OneShotAnimationControlFlags = unchecked((uint)ReadInt(raw, 0x2d0)),
|
|
RotationEnabled = (flags & 4) != 0 && ReadInt(raw, 0x228) > 0,
|
|
SrcAnim = (flags & 4) != 0 && ReadInt(raw, 0x238) > 1,
|
|
ColorAnim = (flags & 4) != 0 && ReadInt(raw, 0x220) > 0,
|
|
OneShotColorEnabled = ReadInt(raw, 0x4c) > 0,
|
|
ScaleEnabled = ReadInt(raw, 0x50) > 0,
|
|
RotationChannelEnabled = ReadInt(raw, 0x54) > 0,
|
|
TranslationEnabled = ReadInt(raw, 0x58) > 0,
|
|
};
|
|
}
|
|
|
|
private static int PackNativeColorKey(long colorKey)
|
|
=> colorKey < 0 ? 0 : unchecked((int)(0xff000000 | (uint)colorKey & 0xffffff));
|
|
|
|
private static long UnpackNativeColorKey(int colorKey)
|
|
=> colorKey == 0 ? -1 : unchecked((uint)colorKey) & 0xffffff;
|
|
|
|
private static void WriteScaleMatrix(Span<byte> raw, int offset, (double X, double Y, double Z) scale)
|
|
{
|
|
WriteFloat(raw, offset, scale.X);
|
|
WriteFloat(raw, offset + 0x14, scale.Y);
|
|
WriteFloat(raw, offset + 0x28, scale.Z);
|
|
WriteFloat(raw, offset + 0x3c, 1);
|
|
}
|
|
|
|
private static (double X, double Y, double Z) ReadScale(ReadOnlySpan<byte> raw, int offset)
|
|
=> (ReadFloat(raw, offset), ReadFloat(raw, offset + 0x14), ReadFloat(raw, offset + 0x28));
|
|
|
|
private static void WriteVector(Span<byte> raw, int offset, (long X, long Y, long Z) vector)
|
|
{
|
|
WriteInt(raw, offset, unchecked((int)vector.X));
|
|
WriteInt(raw, offset + 4, unchecked((int)vector.Y));
|
|
WriteInt(raw, offset + 8, unchecked((int)vector.Z));
|
|
}
|
|
|
|
private static (long X, long Y, long Z) ReadLongVector(ReadOnlySpan<byte> raw, int offset)
|
|
=> (ReadInt(raw, offset), ReadInt(raw, offset + 4), ReadInt(raw, offset + 8));
|
|
|
|
private static (long X, long Y, long Z) ReadLongFloatVector(ReadOnlySpan<byte> raw, int offset)
|
|
=> ((long)ReadFloat(raw, offset), (long)ReadFloat(raw, offset + 4), (long)ReadFloat(raw, offset + 8));
|
|
|
|
private static (double X, double Y, double Z) ReadDoubleVector(ReadOnlySpan<byte> raw, int offset)
|
|
=> (ReadFloat(raw, offset), ReadFloat(raw, offset + 4), ReadFloat(raw, offset + 8));
|
|
|
|
private static void WriteFloat(Span<byte> raw, int offset, double value)
|
|
=> WriteInt(raw, offset, BitConverter.SingleToInt32Bits((float)value));
|
|
|
|
private static float ReadFloat(ReadOnlySpan<byte> raw, int offset)
|
|
=> BitConverter.Int32BitsToSingle(ReadInt(raw, offset));
|
|
|
|
private static int ReadInt(ReadOnlySpan<byte> raw, int offset)
|
|
=> BinaryPrimitives.ReadInt32LittleEndian(raw.Slice(offset, 4));
|
|
|
|
private static void WriteInt(Span<byte> raw, int offset, int value)
|
|
=> BinaryPrimitives.WriteInt32LittleEndian(raw.Slice(offset, 4), value);
|
|
}
|