/// <summary>
/// Encode a subcodec bitmap area into byte stream
/// </summary>
/// <param name="subcodeBmp">The bitmap to be encoded in subcodec layer.</param>
/// <param name="subcodecRect">The subcodec area relative to bitmap left-top edge.</param>
/// <param name="subcodecID">The subcodec ID to be chosen.</param>
/// <param name="subcodec">The subcodec layer encode result.</param>
public static bool EncodeSubcodec(Bitmap subcodecBmp, ClearCodec_RECT16 subcodecRect, CLEARCODEC_SUBCODEC_ID subcodecID,
ref CLEARCODEC_SUBCODEC subcodec)
{
if (subcodecBmp == null)
{
return(false);
}
subcodec.xStart = subcodecRect.left;
subcodec.yStart = subcodecRect.top;
subcodec.width = (ushort)(subcodecRect.right - subcodecRect.left);
subcodec.height = (ushort)(subcodecRect.bottom - subcodecRect.top);
// save subcodecID
subcodec.bitmapData.subCodecId = subcodecID;
// get encoded data based on subcodecID
if (subcodecID == CLEARCODEC_SUBCODEC_ID.SUBCODEC_RLEX)
{
// RLEX encoded bitmap data
if (!RlexEncode(subcodecBmp, ref subcodec.bitmapData.bmpRlex))
{
return(false);
}
}
else
{
// raw encoded bitmap data
if (!RawEncode(subcodecBmp, ref subcodec.bitmapData.bmpPixels))
{
return(false);
}
}
return(true);
}
/// <summary>
/// Load a residual layer bitmap into clearcode encoder.
/// </summary>
/// <param name = "bandBitmap"> specifies a band layer image </param>
/// <param name = "pos"> specifies position of band layer image, relative to residual layer image </param>
public void LoadBandBitmap(Bitmap bandBitmap, RDPGFX_POINT16 pos)
{
if (bandBitmap != null)
{
ClearCodec_RECT16 bRect = new ClearCodec_RECT16();
bRect.left = pos.x;
bRect.top = pos.y;
bRect.right = (ushort)(pos.x + bandBitmap.Width);
bRect.bottom = (ushort)(pos.y + bandBitmap.Height);
this.bandDict.Add(bRect, bandBitmap);
}
}
/// <summary>
/// Load a residual layer bitmap into clearcode encoder.
/// </summary>
/// <param name = "subcodecBitmap"> specifies a subcodec layer image </param>
/// <param name = "pos"> specifies position of subcodec layer image, relative to residual layer image </param>
/// <param name = "sbcID"> specifies subcodec ID to encoding subcodec layer image </param>
public void LoadSubcodecBitmap(Bitmap subcodecBitmap, RDPGFX_POINT16 pos, CLEARCODEC_SUBCODEC_ID sbcID)
{
if (subcodecBitmap != null)
{
ClearCodec_RECT16 scRect = new ClearCodec_RECT16();
scRect.left = pos.x;
scRect.top = pos.y;
scRect.right = (ushort)(pos.x + subcodecBitmap.Width);
scRect.bottom = (ushort)(pos.x + subcodecBitmap.Height);
BMP_INFO bmp_info = new BMP_INFO();
bmp_info.bmp = subcodecBitmap;
bmp_info.scID = sbcID;
this.subcodecDict.Add(scRect, bmp_info);
}
}
/// <summary>
/// Encode a subcodec bitmap area into byte stream
/// </summary>
/// <param name="subcodeBmp">The bitmap to be encoded in subcodec layer.</param>
/// <param name="subcodecRect">The subcodec area relative to bitmap left-top edge.</param>
/// <param name="subcodecID">The subcodec ID to be chosen.</param>
/// <param name="subcodec">The subcodec layer encode result.</param>
public static bool EncodeSubcodec(Bitmap subcodecBmp, ClearCodec_RECT16 subcodecRect, CLEARCODEC_SUBCODEC_ID subcodecID,
ref CLEARCODEC_SUBCODEC subcodec)
{
if (subcodecBmp == null) return false;
subcodec.xStart = subcodecRect.left;
subcodec.yStart = subcodecRect.top;
subcodec.width = (ushort)(subcodecRect.right - subcodecRect.left);
subcodec.height = (ushort)(subcodecRect.bottom - subcodecRect.top);
// save subcodecID
subcodec.bitmapData.subCodecId = subcodecID;
// get encoded data based on subcodecID
if (subcodecID == CLEARCODEC_SUBCODEC_ID.SUBCODEC_RLEX)
{
// RLEX encoded bitmap data
if( !RlexEncode(subcodecBmp, ref subcodec.bitmapData.bmpRlex)) return false;
}
else
{
// raw encoded bitmap data
if (!RawEncode(subcodecBmp, ref subcodec.bitmapData.bmpPixels)) return false;
}
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>
/// Load a residual layer bitmap into clearcode encoder.
/// </summary>
/// <param name = "subcodecBitmap"> specifies a subcodec layer image </param>
/// <param name = "pos"> specifies position of subcodec layer image, relative to residual layer image </param>
/// <param name = "sbcID"> specifies subcodec ID to encoding subcodec layer image </param>
public void LoadSubcodecBitmap(Bitmap subcodecBitmap, RDPGFX_POINT16 pos, CLEARCODEC_SUBCODEC_ID sbcID)
{
if (subcodecBitmap != null)
{
ClearCodec_RECT16 scRect = new ClearCodec_RECT16();
scRect.left = pos.x;
scRect.top = pos.y;
scRect.right = (ushort)(pos.x + subcodecBitmap.Width);
scRect.bottom = (ushort)(pos.x + subcodecBitmap.Height);
BMP_INFO bmp_info = new BMP_INFO();
bmp_info.bmp = subcodecBitmap;
bmp_info.scID = sbcID;
this.subcodecDict.Add(scRect, bmp_info);
}
}
/// <summary>
/// Load a residual layer bitmap into clearcode encoder.
/// </summary>
/// <param name = "bandBitmap"> specifies a band layer image </param>
/// <param name = "pos"> specifies position of band layer image, relative to residual layer image </param>
public void LoadBandBitmap(Bitmap bandBitmap, RDPGFX_POINT16 pos)
{
if (bandBitmap != null)
{
ClearCodec_RECT16 bRect = new ClearCodec_RECT16();
bRect.left = pos.x;
bRect.top = pos.y;
bRect.right = (ushort)(pos.x + bandBitmap.Width);
bRect.bottom = (ushort)(pos.y + bandBitmap.Height);
this.bandDict.Add(bRect, bandBitmap);
}
}
/// <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;
}