/// <summary>
/// It decode byte stream into CLEARCODEC_VBAR structure
/// </summary>
/// <param name = "bandVBar"> The structure that decode result save to. </param>
public bool DecodeBandVBar(ref CLEARCODEC_VBAR bandVBar)
{
ushort vBarStat = 0;
if (!DecodeUShort(ref vBarStat))
{
return(false);
}
if ((vBarStat & 0x8000) != 0) // VBAR_CACHE_HIT structure
{
bandVBar.type = VBAR_TYPE.VBAR_CACHE_HIT;
bandVBar.vbarCacheHit.vBarIndex_x = vBarStat;
}
else if ((vBarStat & 0xc000) != 0) // SHORT_VBAR_CACHE_HIT structure
{
bandVBar.type = VBAR_TYPE.SHORT_VBAR_CACHE_HIT;
bandVBar.shortVbarCacheHit.shortVBarIndex_x = vBarStat;
if (!DecodeByte(ref bandVBar.shortVbarCacheHit.shortVBarYOn))
{
return(false);
}
}
else // Must be SHORT_VBAR_CACHE_MISS structure.
{
bandVBar.type = VBAR_TYPE.SHORT_VBAR_CACHE_MISS;
bandVBar.shortVbarCacheMiss.shortVBarYOnOff_x = vBarStat;
byte pixelCount = (byte)(bandVBar.shortVbarCacheMiss.shortVBarYOff - bandVBar.shortVbarCacheMiss.shortVBarYOn);
// Decode shortVBarPixels.
List <Color_RGB> shortVBarPixelList = new List <Color_RGB>();
for (int i = 0; i < pixelCount; i++)
{
Color_RGB rgb = new Color_RGB();
if (!DecodeByte(ref rgb.B))
{
return(false);
}
if (!DecodeByte(ref rgb.G))
{
return(false);
}
if (!DecodeByte(ref rgb.R))
{
return(false);
}
shortVBarPixelList.Add(rgb);
}
bandVBar.shortVbarCacheMiss.shortVBarPixels = shortVBarPixelList.ToArray();
}
return(true);
}
/// <summary>
/// It decode byte stream into CLEARCODEC_BAND structure
/// </summary>
/// <param name = "band"> The structure that decode result save to. </param>
public bool DecodeBand(ref CLEARCODEC_BAND band)
{
if (!DecodeUShort(ref band.xStart))
{
return(false);
}
if (!DecodeUShort(ref band.xEnd))
{
return(false);
}
if (!DecodeUShort(ref band.yStart))
{
return(false);
}
if (!DecodeUShort(ref band.yEnd))
{
return(false);
}
if (!DecodeByte(ref band.blueBkg))
{
return(false);
}
if (!DecodeByte(ref band.greenBkg))
{
return(false);
}
if (!DecodeByte(ref band.redBkg))
{
return(false);
}
ushort vbarCount = (ushort)(band.xEnd - band.xStart + 1);
List <CLEARCODEC_VBAR> vbarList = new List <CLEARCODEC_VBAR>();
for (int i = 0; i < vbarCount; i++)
{
CLEARCODEC_VBAR vbar = new CLEARCODEC_VBAR();
if (!DecodeBandVBar(ref vbar))
{
return(false);
}
vbarList.Add(vbar);
}
band.vBars = vbarList.ToArray();
return(true);
}
/// <summary>
/// It decode byte stream into CLEARCODEC_BAND structure
/// </summary>
/// <param name = "band"> The structure that decode result save to. </param>
public bool DecodeBand(ref CLEARCODEC_BAND band)
{
if (!DecodeUShort(ref band.xStart)) return false;
if (!DecodeUShort(ref band.xEnd)) return false;
if (!DecodeUShort(ref band.yStart)) return false;
if (!DecodeUShort(ref band.yEnd)) return false;
if (!DecodeByte(ref band.blueBkg)) return false;
if (!DecodeByte(ref band.greenBkg)) return false;
if (!DecodeByte(ref band.redBkg)) return false;
ushort vbarCount = (ushort)(band.xEnd - band.xStart + 1);
List<CLEARCODEC_VBAR> vbarList = new List<CLEARCODEC_VBAR>();
for (int i = 0; i < vbarCount; i++)
{
CLEARCODEC_VBAR vbar = new CLEARCODEC_VBAR();
if (!DecodeBandVBar(ref vbar)) return false;
vbarList.Add(vbar);
}
band.vBars = vbarList.ToArray();
return true;
}
/// <summary>
/// It decode byte stream into CLEARCODEC_VBAR structure
/// </summary>
/// <param name = "bandVBar"> The structure that decode result save to. </param>
public bool DecodeBandVBar(ref CLEARCODEC_VBAR bandVBar)
{
ushort vBarStat = 0;
if (!DecodeUShort(ref vBarStat)) return false;
if ((vBarStat & 0x8000) != 0) // VBAR_CACHE_HIT structure
{
bandVBar.type = VBAR_TYPE.VBAR_CACHE_HIT;
bandVBar.vbarCacheHit.vBarIndex_x = vBarStat;
}
else if ((vBarStat & 0xc000) != 0) // SHORT_VBAR_CACHE_HIT structure
{
bandVBar.type = VBAR_TYPE.SHORT_VBAR_CACHE_HIT;
bandVBar.shortVbarCacheHit.shortVBarIndex_x = vBarStat;
if (!DecodeByte(ref bandVBar.shortVbarCacheHit.shortVBarYOn)) return false;
}
else // Must be SHORT_VBAR_CACHE_MISS structure.
{
bandVBar.type = VBAR_TYPE.SHORT_VBAR_CACHE_MISS;
bandVBar.shortVbarCacheMiss.shortVBarYOnOff_x = vBarStat;
byte pixelCount = (byte)(bandVBar.shortVbarCacheMiss.shortVBarYOff - bandVBar.shortVbarCacheMiss.shortVBarYOn);
// Decode shortVBarPixels.
List<Color_RGB> shortVBarPixelList = new List<Color_RGB>();
for (int i = 0; i < pixelCount; i++)
{
Color_RGB rgb = new Color_RGB();
if (!DecodeByte(ref rgb.B)) return false;
if (!DecodeByte(ref rgb.G)) return false;
if (!DecodeByte(ref rgb.R)) return false;
shortVBarPixelList.Add(rgb);
}
bandVBar.shortVbarCacheMiss.shortVBarPixels = shortVBarPixelList.ToArray();
}
return true;
}
/// <summary>
/// Encode a band bitmap into byte stream
/// </summary>
/// <param name="bandBmp">The bitmap to be encoded in band layer.</param>
/// <param name="bandRect">The band position relative to bitmap left-top edge.</param>
public CLEARCODEC_BAND EncodeBand(Bitmap bandBmp, ClearCodec_RECT16 bandRect)
{
CLEARCODEC_BAND bandData = new CLEARCODEC_BAND();
Color bgColor = bandBmp.GetPixel(0, 0);
bandData.xStart = bandRect.left;
bandData.xEnd = (ushort)(bandRect.right - 1);
bandData.yStart = bandRect.top;
bandData.yEnd = (ushort)(bandRect.bottom - 1);
bandData.blueBkg = bgColor.B;
bandData.greenBkg = bgColor.G;
bandData.redBkg = bgColor.R;
List <CLEARCODEC_VBAR> vBarList = new List <CLEARCODEC_VBAR>();
// use short vbar cache miss method
for (ushort x = 0; x < bandBmp.Width; x++)
{
byte shortVBarYOn = 0; // relative to top of V-Bar, won't excceed 52
byte shortVBarYOff = 0; // relative to top of V-Bar, won't excceed 52
// find shortVBarYOn from top
byte y; // bandBmp.Height can't exceed 52 pixels
for (y = 0; y < bandBmp.Height; y++)
{
Color pixelColor = bandBmp.GetPixel(x, y);
if (!bgColor.Equals(pixelColor))
{
shortVBarYOn = (byte)y;
break;
}
}
// the whole vbar use bgColor
if (y == (ushort)bandBmp.Height)
{
shortVBarYOn = (byte)y;
shortVBarYOff = (byte)y;
}
// find shortVBarYOff from bottem, which is the first position for left bgcolor
for (y = (byte)(bandBmp.Height - 1); y > shortVBarYOn; y--)
{
Color pixelColor = bandBmp.GetPixel(x, y);
if (!bgColor.Equals(pixelColor))
{
shortVBarYOff = (byte)(y + 1);
break;
}
}
// only one point in shortVBar is different from bgColor
if (y == shortVBarYOn)
{
shortVBarYOff = (byte)(shortVBarYOn + 1);
}
// construct short Vbar Pixels
List <Color_RGB> shortVBarPixelList = new List <Color_RGB>();
for (y = shortVBarYOn; y < shortVBarYOff; y++)
{
Color pixelColor = bandBmp.GetPixel(x, y);
Color_RGB svbarColor = new Color_RGB();
svbarColor.B = pixelColor.B;
svbarColor.G = pixelColor.G;
svbarColor.R = pixelColor.R;
shortVBarPixelList.Add(svbarColor);
}
// construct vbar pixels
List <Color_RGB> vBarPixelList = new List <Color_RGB>();
for (int k = 0; k < bandBmp.Height; k++)
{
Color pixelColor = bandBmp.GetPixel(x, k);
Color_RGB vbarColor = new Color_RGB();
vbarColor.B = pixelColor.B;
vbarColor.G = pixelColor.G;
vbarColor.R = pixelColor.R;
vBarPixelList.Add(vbarColor);
}
// check if vbar or short vbar cache matched
ushort vbarIdx = GetVbarIndex(vBarPixelList);
if (vbarIdx != 0xffff)
{
// use cache index
CLEARCODEC_VBAR vBar = new CLEARCODEC_VBAR();
vBar.type = VBAR_TYPE.VBAR_CACHE_HIT;
vBar.vbarCacheHit.x = 0x1;
vBar.vbarCacheHit.vBarIndex = vbarIdx;
vBarList.Add(vBar);
continue;
}
else
{
vBarDict.Add(vBarPixelList, vBarCursor);
vBarCursor = (ushort)((vBarCursor + 1) % CLEARCODEC_CONST.CLEARCODEC_BAND_MAX_VBAR_CACHE_SLOT);
}
// cechk short vbar cache
ushort shortvbarIdx = GetShortVbarIndex(shortVBarPixelList);
if (shortvbarIdx != 0xffff)
{
// use short vbar cache index
CLEARCODEC_VBAR svBar = new CLEARCODEC_VBAR();
svBar.type = VBAR_TYPE.SHORT_VBAR_CACHE_HIT;
svBar.shortVbarCacheHit.x = 0x1;
svBar.shortVbarCacheHit.shortVBarIndex = shortvbarIdx;
svBar.shortVbarCacheHit.shortVBarYOn = shortVBarYOn;
vBarList.Add(svBar);
continue;
}
else
{
// add short vbar into cache dictionary and send the short vbar vbar in SHORT_VBAR_CACHE_MISS structure later.
shortvBarDict.Add(shortVBarPixelList, shortvBarCursor);
shortvBarCursor = (ushort)((shortvBarCursor + 1) % CLEARCODEC_CONST.CLEARCODEC_BAND_MAX_SHORT_VBAR_CACHE_SLOT);
}
// get to here mean no vbar or short vbar cache hit
CLEARCODEC_VBAR vBarUncache = new CLEARCODEC_VBAR();
vBarUncache.type = VBAR_TYPE.SHORT_VBAR_CACHE_MISS;
vBarUncache.shortVbarCacheMiss.x = 0x0;
// pack data into vBar.shortVbarCacheMiss
vBarUncache.shortVbarCacheMiss.shortVBarYOn = shortVBarYOn;
vBarUncache.shortVbarCacheMiss.shortVBarYOff = shortVBarYOff;
if (shortVBarYOff > shortVBarYOn)
{
vBarUncache.shortVbarCacheMiss.shortVBarPixels = shortVBarPixelList.ToArray();
}
vBarList.Add(vBarUncache);
}
bandData.vBars = vBarList.ToArray();
return(bandData);
}
/// <summary>
/// Encode a band bitmap into byte stream
/// </summary>
/// <param name="bandBmp">The bitmap to be encoded in band layer.</param>
/// <param name="bandRect">The band position relative to bitmap left-top edge.</param>
public CLEARCODEC_BAND EncodeBand(Bitmap bandBmp, ClearCodec_RECT16 bandRect)
{
CLEARCODEC_BAND bandData = new CLEARCODEC_BAND();
Color bgColor = bandBmp.GetPixel(0, 0);
bandData.xStart = bandRect.left;
bandData.xEnd = (ushort)(bandRect.right-1);
bandData.yStart = bandRect.top;
bandData.yEnd = (ushort)(bandRect.bottom-1);
bandData.blueBkg = bgColor.B;
bandData.greenBkg = bgColor.G;
bandData.redBkg = bgColor.R;
List<CLEARCODEC_VBAR> vBarList = new List<CLEARCODEC_VBAR>();
// use short vbar cache miss method
for (ushort x = 0; x < bandBmp.Width; x++)
{
byte shortVBarYOn = 0; // relative to top of V-Bar, won't excceed 52
byte shortVBarYOff = 0; // relative to top of V-Bar, won't excceed 52
// find shortVBarYOn from top
byte y; // bandBmp.Height can't exceed 52 pixels
for ( y = 0; y < bandBmp.Height; y++)
{
Color pixelColor = bandBmp.GetPixel(x, y);
if (!bgColor.Equals(pixelColor))
{
shortVBarYOn = (byte)y;
break;
}
}
// the whole vbar use bgColor
if (y == (ushort)bandBmp.Height)
{
shortVBarYOn = (byte)y;
shortVBarYOff = (byte)y;
}
// find shortVBarYOff from bottem, which is the first position for left bgcolor
for (y = (byte)(bandBmp.Height - 1); y > shortVBarYOn; y--)
{
Color pixelColor = bandBmp.GetPixel(x, y);
if (!bgColor.Equals(pixelColor))
{
shortVBarYOff = (byte)(y + 1);
break;
}
}
// only one point in shortVBar is different from bgColor
if (y == shortVBarYOn)
{
shortVBarYOff = (byte)(shortVBarYOn + 1);
}
// construct short Vbar Pixels
List<Color_RGB> shortVBarPixelList = new List<Color_RGB>();
for (y = shortVBarYOn; y < shortVBarYOff; y++)
{
Color pixelColor = bandBmp.GetPixel(x, y);
Color_RGB svbarColor = new Color_RGB();
svbarColor.B = pixelColor.B;
svbarColor.G = pixelColor.G;
svbarColor.R = pixelColor.R;
shortVBarPixelList.Add(svbarColor);
}
// construct vbar pixels
List<Color_RGB> vBarPixelList = new List<Color_RGB>();
for (int k = 0; k < bandBmp.Height; k++)
{
Color pixelColor = bandBmp.GetPixel(x, k);
Color_RGB vbarColor = new Color_RGB();
vbarColor.B = pixelColor.B;
vbarColor.G = pixelColor.G;
vbarColor.R = pixelColor.R;
vBarPixelList.Add(vbarColor);
}
// check if vbar or short vbar cache matched
ushort vbarIdx = GetVbarIndex(vBarPixelList);
if (vbarIdx != 0xffff)
{
// use cache index
CLEARCODEC_VBAR vBar = new CLEARCODEC_VBAR();
vBar.type = VBAR_TYPE.VBAR_CACHE_HIT;
vBar.vbarCacheHit.x = 0x1;
vBar.vbarCacheHit.vBarIndex = vbarIdx;
vBarList.Add(vBar);
continue;
}
else
{
vBarDict.Add(vBarPixelList, vBarCursor);
vBarCursor = (ushort)((vBarCursor + 1) % CLEARCODEC_CONST.CLEARCODEC_BAND_MAX_VBAR_CACHE_SLOT);
}
// cechk short vbar cache
ushort shortvbarIdx = GetShortVbarIndex(shortVBarPixelList);
if (shortvbarIdx != 0xffff)
{
// use short vbar cache index
CLEARCODEC_VBAR svBar = new CLEARCODEC_VBAR();
svBar.type = VBAR_TYPE.SHORT_VBAR_CACHE_HIT;
svBar.shortVbarCacheHit.x = 0x1;
svBar.shortVbarCacheHit.shortVBarIndex = shortvbarIdx;
svBar.shortVbarCacheHit.shortVBarYOn = shortVBarYOn;
vBarList.Add(svBar);
continue;
}
else
{
// add short vbar into cache dictionary and send the short vbar vbar in SHORT_VBAR_CACHE_MISS structure later.
shortvBarDict.Add(shortVBarPixelList, shortvBarCursor);
shortvBarCursor = (ushort)((shortvBarCursor + 1) % CLEARCODEC_CONST.CLEARCODEC_BAND_MAX_SHORT_VBAR_CACHE_SLOT);
}
// get to here mean no vbar or short vbar cache hit
CLEARCODEC_VBAR vBarUncache = new CLEARCODEC_VBAR();
vBarUncache.type = VBAR_TYPE.SHORT_VBAR_CACHE_MISS;
vBarUncache.shortVbarCacheMiss.x = 0x0;
// pack data into vBar.shortVbarCacheMiss
vBarUncache.shortVbarCacheMiss.shortVBarYOn = shortVBarYOn;
vBarUncache.shortVbarCacheMiss.shortVBarYOff = shortVBarYOff;
if (shortVBarYOff > shortVBarYOn )
{
vBarUncache.shortVbarCacheMiss.shortVBarPixels = shortVBarPixelList.ToArray();
}
vBarList.Add(vBarUncache);
}
bandData.vBars = vBarList.ToArray();
return bandData;
}