unsafe void ReadStaticTexture(int index, out Texture2D texture)
{
texture = null;
int length, extra;
bool is_patched;
// get a reader inside Art.Mul
BinaryFileReader reader = m_FileIndex.Seek(index, out length, out extra, out is_patched);
if (reader == null)
{
return;
}
reader.ReadInt(); // don't need this, see Art.mul file format.
// get the dimensions of the texture
int width = reader.ReadShort();
int height = reader.ReadShort();
if (width <= 0 || height <= 0)
{
return;
}
// read the texture data!
ushort[] lookups = reader.ReadUShorts(height);
ushort[] data = reader.ReadUShorts(length - lookups.Length * 2 - 8);
Metrics.ReportDataRead(sizeof(ushort) * (data.Length + lookups.Length + 2));
ushort[] pixels = new ushort[width * height];
fixed(ushort *pData = pixels)
{
ushort *dataRef = pData;
int i;
for (int y = 0; y < height; y++, dataRef += width)
{
i = lookups[y];
ushort *start = dataRef;
int count, offset;
while (((offset = data[i++]) + (count = data[i++])) != 0)
{
start += offset;
ushort *end = start + count;
while (start < end)
{
ushort color = data[i++];
* start++ = (ushort)(color | 0x8000);
}
}
}
}
texture = new Texture2D(m_Graphics, width, height, false, SurfaceFormat.Bgra5551);
texture.SetData(pixels);
m_StaticPicking.Set(index, width, height, pixels);
return;
}
public unsafe AnimationFrame(int uniqueAnimationIndex, GraphicsDevice graphics, ushort[] palette, BinaryFileReader reader, SittingTransformation sitting)
{
m_AnimationIndex = uniqueAnimationIndex;
int xCenter = reader.ReadShort();
int yCenter = reader.ReadShort();
int width = reader.ReadUShort();
int height = reader.ReadUShort();
// Fix for animations with no pixels.
if ((width == 0) || (height == 0))
{
Texture = null;
return;
}
if (sitting == SittingTransformation.StandSouth)
{
xCenter += 8;
width += 8;
height += 4;
}
ushort[] data = new ushort[width * height];
// for sitting:
// somewhere around the waist of a typical mobile animation, we take twelve rows of pixels,
// discard every third, and shift every remaining row (total of eight) one pixel to the left
// or right (depending on orientation), for a total skew of eight pixels.
fixed(ushort *pData = data)
{
ushort *dataRef = pData;
int dataRead = 0;
int header;
while ((header = reader.ReadInt()) != 0x7FFF7FFF)
{
header ^= DoubleXor;
int x = ((header >> 22) & 0x3FF) + xCenter - 0x200;
int y = ((header >> 12) & 0x3FF) + yCenter + height - 0x200;
if (sitting == SittingTransformation.StandSouth)
{
const int skew_start = -17;
const int skew_end = skew_start - 16;
int iy = y - height - yCenter;
if (iy > skew_start)
{
// pixels below the skew
x -= 8;
y -= 4;
}
else if (iy > skew_end)
{
// pixels within the skew
if ((iy - skew_end) % 4 == 0)
{
reader.Position += (header & 0xFFF);
continue;
}
x -= (iy - skew_end) / 2;
y -= (iy - skew_end) / 4;
}
}
ushort *cur = dataRef + y * width + x;
ushort *end = cur + (header & 0xFFF);
int filecounter = 0;
byte[] filedata = reader.ReadBytes(header & 0xFFF);
while (cur < end)
{
*cur++ = palette[filedata[filecounter++]];
}
dataRead += header & 0xFFF;
}
Metrics.ReportDataRead(dataRead);
}
Center = new Point(xCenter, yCenter);
Texture = new Texture2D(graphics, width, height, false, SurfaceFormat.Bgra5551);
Texture.SetData(data);
m_Picking.Set(m_AnimationIndex, width, height, data);
}
public unsafe Texture2D GetGumpTexture(int textureID, bool replaceMask080808 = false)
{
if (textureID < 0)
{
return(null);
}
if (m_TextureCache[textureID] == null)
{
int length, extra;
bool patched;
BinaryFileReader reader = m_FileIndex.Seek(textureID, out length, out extra, out patched);
if (reader == null)
{
return(null);
}
int width = (extra >> 16) & 0xFFFF;
int height = extra & 0xFFFF;
if (width == 0 || height == 0)
{
return(null);
}
int shortsToRead = length - (height * 2);
if (reader.Stream.Length - reader.Position < (shortsToRead * 2))
{
Tracer.Error($"Could not read gump {textureID:X4}: not enough data. Gump texture file truncated?");
return(null);
}
int[] lookups = reader.ReadInts(height);
int metrics_dataread_start = (int)reader.Position;
ushort[] fileData = reader.ReadUShorts(shortsToRead);
ushort[] pixels = new ushort[width * height];
fixed(ushort *line = &pixels[0])
{
fixed(ushort *data = &fileData[0])
{
for (int y = 0; y < height; ++y)
{
ushort *dataRef = data + (lookups[y] - height) * 2;
ushort *cur = line + (y * width);
ushort *end = cur + width;
while (cur < end)
{
ushort color = *dataRef++;
ushort *next = cur + *dataRef++;
if (color == 0)
{
cur = next;
}
else
{
color |= 0x8000;
while (cur < next)
{
*cur++ = color;
}
}
}
}
}
}
Metrics.ReportDataRead(length);
if (replaceMask080808)
{
for (int i = 0; i < pixels.Length; i++)
{
if (pixels[i] == 0x8421)
{
pixels[i] = 0xFC1F;
}
}
}
Texture2D texture = new Texture2D(m_graphicsDevice, width, height, false, SurfaceFormat.Bgra5551);
texture.SetData(pixels);
m_TextureCache[textureID] = texture;
m_Picking.Set(textureID, width, height, pixels);
}
return(m_TextureCache[textureID]);
}