public Bitmap Shade (Bitmap source, Color shade, float percent, bool greyScale)
{
FastBitmap bmp = new FastBitmap (source);
bmp.LockBitmap ();
for (int y = 0; y < source.Height; y++) {
for (int x = 0; x < source.Width; x++) {
Color c = bmp.GetPixel (x, y);
if (greyScale) {
int luma = (int)(c.R * 0.3 + c.G * 0.59 + c.B * 0.11);
bmp.SetPixel (x, y, Color.FromArgb (c.A, luma, luma, luma));
} else {
float amtFrom = 1 - percent;
int lumaR = (int)(c.R * amtFrom + shade.R * percent);
int lumaG = (int)(c.G * amtFrom + shade.G * percent);
int lumaB = (int)(c.B * amtFrom + shade.B * percent);
bmp.SetPixel (x, y, Color.FromArgb (c.A, lumaR, lumaG, lumaB));
}
}
}
bmp.UnlockBitmap ();
return bmp.Bitmap ();
}
void Draw (string data, UUID id, string extraParams)
{
// We need to cater for old scripts that didn't use extraParams neatly, they use either an integer size which represents both width and height, or setalpha
// we will now support multiple comma separated parameters in the form width:256,height:512,alpha:255
int width = 256;
int height = 256;
int alpha = 255; // 0 is transparent
Color bgColour = Color.White; // Default background color
char altDataDelim = ';';
char [] paramDelimiter = { ',' };
char [] nvpDelimiter = { ':' };
extraParams = extraParams.Trim ();
extraParams = extraParams.ToLower ();
string [] nvps = extraParams.Split (paramDelimiter);
int temp = -1;
foreach (string pair in nvps) {
string [] nvp = pair.Split (nvpDelimiter);
string name = "";
string value = "";
if (nvp [0] != null) {
name = nvp [0].Trim ();
}
if (nvp.Length == 2) {
value = nvp [1].Trim ();
}
switch (name) {
case "width":
temp = parseIntParam (value);
if (temp != -1) {
if (temp < 1) {
width = 1;
} else if (temp > 2048) {
width = 2048;
} else {
width = temp;
}
}
break;
case "height":
temp = parseIntParam (value);
if (temp != -1) {
if (temp < 1) {
height = 1;
} else if (temp > 2048) {
height = 2048;
} else {
height = temp;
}
}
break;
case "alpha":
temp = parseIntParam (value);
if (temp != -1) {
if (temp < 0) {
alpha = 0;
} else if (temp > 255) {
alpha = 255;
} else {
alpha = temp;
}
}
// Allow a bitmap w/o the alpha component to be created
else if (value.ToLower () == "false") {
alpha = 256;
}
break;
case "bgcolour":
case "bgcolor":
int hex = 0;
bgColour = int.TryParse (value, NumberStyles.HexNumber, CultureInfo.InvariantCulture, out hex)
? Color.FromArgb (hex)
: Color.FromName (value);
break;
case "altdatadelim":
altDataDelim = value [0];
break;
case "":
// blank string has been passed do nothing just use defaults
break;
default: // this is all for backwards compatibility, all a bit ugly hopefully can be removed in future
// could be either set alpha or just an int
if (name == "setalpha") {
alpha = 0; // set the texture to have transparent background (maintains backwards compatibility)
} else {
// this function used to accept an int on its own that represented both
// width and height, this is to maintain backwards compatibility, could be removed
// but would break existing scripts
temp = parseIntParam (name);
if (temp != -1) {
if (temp > 1024)
temp = 1024;
if (temp < 128)
temp = 128;
width = temp;
height = temp;
}
}
break;
}
}
Bitmap bitmap;
bitmap = alpha == 256
? new Bitmap (width, height, PixelFormat.Format32bppRgb)
: new Bitmap (width, height, PixelFormat.Format32bppArgb);
Graphics graph = Graphics.FromImage (bitmap);
// this is really just to save people filling the
// background color in their scripts, only do when fully opaque
if (alpha >= 255) {
graph.FillRectangle (new SolidBrush (bgColour), 0, 0, width, height);
}
FastBitmap fastBitmap = new FastBitmap (bitmap);
fastBitmap.LockBitmap ();
try {
for (int w = 0; w < bitmap.Width; w++) {
if (alpha <= 255) {
for (int h = 0; h < bitmap.Height; h++) {
fastBitmap.SetPixel (w, h, Color.FromArgb (alpha, fastBitmap.GetPixel (w, h)));
}
}
}
} catch {
MainConsole.Instance.Error (
"[Vector rendering]: FastBMP encode Failed!");
}
fastBitmap.UnlockBitmap ();
bitmap = fastBitmap.Bitmap ();
graph.SmoothingMode = SmoothingMode.AntiAlias;
graph.CompositingQuality = CompositingQuality.HighQuality;
graph.TextRenderingHint = TextRenderingHint.AntiAliasGridFit;
GDIDraw (data, graph, altDataDelim);
graph.Dispose ();
byte [] imageJ2000 = new byte [0];
try {
imageJ2000 = OpenJPEG.EncodeFromImage (bitmap, false);
} catch (Exception) {
MainConsole.Instance.Error (
"[Vector rendering]: OpenJpeg Encode Failed. Empty byte data returned!");
}
m_textureManager.ReturnData (id, imageJ2000);
}
public Bitmap TerrainToBitmap (Bitmap mapbmp)
{
FastBitmap unsafeBMP = new FastBitmap (mapbmp);
unsafeBMP.LockBitmap ();
//DateTime start = DateTime.Now;
//MainConsole.Instance.Info("[MAPTILE]: Generating Maptile Step 1: Terrain");
// These textures should be in the AssetCache anyway, as every client connecting to this
// region needs them. Except on start, when the map is recreated (before anyone connected),
// and on change of the estate settings (textures and terrain values), when the map should
// be recreated.
RegionSettings settings = m_scene.RegionInfo.RegionSettings;
// the four terrain colors as HSVs for interpolation
HSV hsv1 = new HSV (computeAverageColor (settings.TerrainTexture1, defaultColor1));
HSV hsv2 = new HSV (computeAverageColor (settings.TerrainTexture2, defaultColor2));
HSV hsv3 = new HSV (computeAverageColor (settings.TerrainTexture3, defaultColor3));
HSV hsv4 = new HSV (computeAverageColor (settings.TerrainTexture4, defaultColor4));
float levelNElow = (float)settings.Elevation1NE;
float levelNEhigh = (float)settings.Elevation2NE;
float levelNWlow = (float)settings.Elevation1NW;
float levelNWhigh = (float)settings.Elevation2NW;
float levelSElow = (float)settings.Elevation1SE;
float levelSEhigh = (float)settings.Elevation2SE;
float levelSWlow = (float)settings.Elevation1SW;
float levelSWhigh = (float)settings.Elevation2SW;
float waterHeight = (float)settings.WaterHeight;
ITerrainChannel heightmap = m_scene.RequestModuleInterface<ITerrainChannel> ();
float sizeRatio = m_scene.RegionInfo.RegionSizeX / (float)Constants.RegionSize;
for (float y = 0; y < m_scene.RegionInfo.RegionSizeY; y += sizeRatio) {
float rowRatio = y / (m_scene.RegionInfo.RegionSizeY - 1); // 0 - 1, for interpolation
for (float x = 0; x < m_scene.RegionInfo.RegionSizeX; x += sizeRatio) {
float columnRatio = x / (m_scene.RegionInfo.RegionSizeX - 1); // 0 - 1, for interpolation
float heightvalue = getHeight (heightmap, (int)x, (int)y);
if (heightvalue > waterHeight) {
// add a bit noise for breaking up those flat colors:
// - a large-scale noise, for the "patches" (using an doubled s-curve for sharper contrast)
// - a small-scale noise, for bringing in some small scale variation
//float bigNoise = (float)TerrainUtil.InterpolatedNoise(x / 8.0, y / 8.0) * .5f + .5f; // map to 0.0 - 1.0
//float smallNoise = (float)TerrainUtil.InterpolatedNoise(x + 33, y + 43) * .5f + .5f;
//float hmod = heightvalue + smallNoise * 3f + S(S(bigNoise)) * 10f;
float hmod =
heightvalue; // 0 - 10
// find the low/high values for this point (interpolated bilinearily)
// (and remember, x=0,y=0 is SW)
float low = levelSWlow * (1f - rowRatio) * (1f - columnRatio) +
levelSElow * (1f - rowRatio) * columnRatio +
levelNWlow * rowRatio * (1f - columnRatio) +
levelNElow * rowRatio * columnRatio;
float high = levelSWhigh * (1f - rowRatio) * (1f - columnRatio) +
levelSEhigh * (1f - rowRatio) * columnRatio +
levelNWhigh * rowRatio * (1f - columnRatio) +
levelNEhigh * rowRatio * columnRatio;
if (high < low) {
// someone tried to fool us. High value should be higher than low every time
float tmp = high;
high = low;
low = tmp;
}
HSV hsv;
if (hmod <= low) hsv = hsv1; // too low
else if (hmod >= high) hsv = hsv4; // too high
else {
// HSV-interpolate along the colors
// first, rescale h to 0.0 - 1.0
hmod = (hmod - low) / (high - low);
// now we have to split: 0.00 => color1, 0.33 => color2, 0.67 => color3, 1.00 => color4
if (hmod < 1f / 3f) hsv = interpolateHSV (ref hsv1, ref hsv2, hmod * 3f);
else if (hmod < 2f / 3f) hsv = interpolateHSV (ref hsv2, ref hsv3, (hmod * 3f) - 1f);
else hsv = interpolateHSV (ref hsv3, ref hsv4, (hmod * 3f) - 2f);
}
//get the data from the original image
Color hsvColor = hsv.ToColor ();
unsafeBMP.SetPixel ((int)(x / sizeRatio),
(int)(((m_scene.RegionInfo.RegionSizeY - 1) - y) / sizeRatio), hsvColor);
} else {
// We're under the water level with the terrain, so paint water instead of land
unsafeBMP.SetPixel ((int)(x / sizeRatio),
(int)(((m_scene.RegionInfo.RegionSizeY - 1) - y) / sizeRatio), WATER_COLOR);
}
}
}
if (m_mapping != null) {
SaveCache ();
m_mapping.Clear ();
}
unsafeBMP.UnlockBitmap ();
//MainConsole.Instance.Info("[MAPTILE]: Generating Maptile Step 1: Done in " + (DateTime.Now - start).TotalSeconds + " ms");
return unsafeBMP.Bitmap ();
}
