void StackBlurRGBA32(ImageReaderWriterBase img, int radius, int ry)
{
int width = img.Width;
int w4 = img.Width * 4;
int height = img.Height;
int[] srcBuffer = new int[width * height];
ImageReaderWriterBase.CopySubBufferToInt32Array(img, 0, 0, width, height, srcBuffer);
StackBlurARGB.FastBlur32ARGB(srcBuffer, srcBuffer, img.Width, img.Height, radius);
int i = 0;
for (int y = 0; y < height; ++y)
{
for (int x = 0; x < width; ++x)
{
int dest = srcBuffer[i];
img.SetPixel(x, y,
Color.FromArgb(
(byte)((dest >> 16) & 0xff),
(byte)((dest >> 8) & 0xff),
(byte)((dest) & 0xff)));
i++;
}
}
}
//--------------------------------------------------------------------
public ImgSpanGenRGB_BilinearClip(IImageReaderWriter src,
ColorRGBA back_color,
ISpanInterpolator inter)
: base(inter)
{
m_bgcolor = back_color;
srcRW = (ImageReaderWriterBase)src;
}
public void Fill(ImageReaderWriterBase bufferToFillOn, int x, int y)
{
unchecked // this way we can overflow the uint on negative and get a big number
{
if ((uint)x > bufferToFillOn.Width || (uint)y > bufferToFillOn.Height)
{
return;
}
}
destImage = bufferToFillOn;
imageStride = destImage.Stride;
destBuffer = destImage.GetBuffer();
int imageWidth = destImage.Width;
int imageHeight = destImage.Height;
pixelsChecked = new bool[destImage.Width * destImage.Height];
int startColorBufferOffset = destImage.GetBufferOffsetXY(x, y);
fillRule.SetStartColor(new ColorRGBA(destImage.GetBuffer()[startColorBufferOffset + 2], destImage.GetBuffer()[startColorBufferOffset + 1], destImage.GetBuffer()[startColorBufferOffset]));
LinearFill(x, y);
while (ranges.Count > 0)
{
Range range = ranges.Dequeue();
int downY = range.y - 1;
int upY = range.y + 1;
int downPixelOffset = (imageWidth * (range.y - 1)) + range.startX;
int upPixelOffset = (imageWidth * (range.y + 1)) + range.startX;
for (int rangeX = range.startX; rangeX <= range.endX; rangeX++)
{
if (range.y > 0)
{
if (!pixelsChecked[downPixelOffset])
{
int bufferOffset = destImage.GetBufferOffsetXY(rangeX, downY);
if (fillRule.CheckPixel(destBuffer, bufferOffset))
{
LinearFill(rangeX, downY);
}
}
}
if (range.y < (imageHeight - 1))
{
if (!pixelsChecked[upPixelOffset])
{
int bufferOffset = destImage.GetBufferOffsetXY(rangeX, upY);
if (fillRule.CheckPixel(destBuffer, bufferOffset))
{
LinearFill(rangeX, upY);
}
}
}
upPixelOffset++;
downPixelOffset++;
}
}
}
public ImgSpanGenGray_NNStepXby1(IImageReaderWriter src, ISpanInterpolator spanInterpolator)
: base(spanInterpolator)
{
srcRW = (ImageReaderWriterBase)src;
if (srcRW.BitDepth != 8)
{
throw new NotSupportedException("The source is expected to be 32 bit.");
}
}
public ImgSpanGenRGBA_BilinearClip(IImageReaderWriter src,
ColorRGBA back_color,
ISpanInterpolator inter)
: base(inter)
{
m_bgcolor = back_color;
srcRW = (ImageReaderWriterBase)src;
bytesBetweenPixelInclusive = srcRW.BytesBetweenPixelsInclusive;
}
public ImgSpanGenGray_NNStepXby1(IImageReaderWriter src, ISpanInterpolator spanInterpolator)
: base(spanInterpolator)
{
srcRW = (ImageReaderWriterBase)src;
if (srcRW.BitDepth != 8)
{
throw new NotSupportedException("The source is expected to be 32 bit.");
}
}
public static void CopyToWindowsBitmap(ImageReaderWriterBase backingImageBufferByte,
Bitmap windowsBitmap,
RectInt rect)
{
int offset = 0;
byte[] buffer = backingImageBufferByte.GetBuffer();
BitmapHelper.CopyToWindowsBitmap(buffer, offset,
backingImageBufferByte.Stride, backingImageBufferByte.Height,
backingImageBufferByte.BitDepth,
windowsBitmap, rect);
}
public void Blur(ImageReaderWriterBase img, int rx, int ry)
{
switch (img.BitDepth)
{
case 24:
StackBlurRGB24(img, rx, ry);
break;
case 32:
StackBlurRGBA32(img, rx, ry);
break;
default:
throw new NotImplementedException();
}
}
public void Blur(ImageReaderWriterBase img, int rx, int ry)
{
switch (img.BitDepth)
{
case 24:
StackBlurRGB24(img, rx, ry);
break;
case 32:
StackBlurRGBA32(img, rx, ry);
break;
default:
throw new NotImplementedException();
}
}
void StackBlurRGB24(ImageReaderWriterBase img, int rx, int ry)
{
throw new NotImplementedException();
#if false
//typedef typename Img::color_type color_type;
//typedef typename Img::order_type order_type;
int x, y, xp, yp, i;
int stack_ptr;
int stack_start;
byte * src_pix_ptr;
byte * dst_pix_ptr;
color_type *stack_pix_ptr;
int sum_r;
int sum_g;
int sum_b;
int sum_in_r;
int sum_in_g;
int sum_in_b;
int sum_out_r;
int sum_out_g;
int sum_out_b;
int w = img.width();
int h = img.height();
int wm = w - 1;
int hm = h - 1;
int div;
int mul_sum;
int shr_sum;
pod_vector <color_type> stack;
if (rx > 0)
{
if (rx > 254)
{
rx = 254;
}
div = rx * 2 + 1;
mul_sum = stack_blur_tables.g_stack_blur8_mul[rx];
shr_sum = stack_blur_tables.g_stack_blur8_shr[rx];
stack.allocate(div);
for (y = 0; y < h; y++)
{
sum_r =
sum_g =
sum_b =
sum_in_r =
sum_in_g =
sum_in_b =
sum_out_r =
sum_out_g =
sum_out_b = 0;
src_pix_ptr = img.pix_ptr(0, y);
for (i = 0; i <= rx; i++)
{
stack_pix_ptr = &stack[i];
stack_pix_ptr->r = src_pix_ptr[R];
stack_pix_ptr->g = src_pix_ptr[G];
stack_pix_ptr->b = src_pix_ptr[B];
sum_r += src_pix_ptr[R] * (i + 1);
sum_g += src_pix_ptr[G] * (i + 1);
sum_b += src_pix_ptr[B] * (i + 1);
sum_out_r += src_pix_ptr[R];
sum_out_g += src_pix_ptr[G];
sum_out_b += src_pix_ptr[B];
}
for (i = 1; i <= rx; i++)
{
if (i <= wm)
{
src_pix_ptr += Img::pix_width;
}
stack_pix_ptr = &stack[i + rx];
stack_pix_ptr->r = src_pix_ptr[R];
stack_pix_ptr->g = src_pix_ptr[G];
stack_pix_ptr->b = src_pix_ptr[B];
sum_r += src_pix_ptr[R] * (rx + 1 - i);
sum_g += src_pix_ptr[G] * (rx + 1 - i);
sum_b += src_pix_ptr[B] * (rx + 1 - i);
sum_in_r += src_pix_ptr[R];
sum_in_g += src_pix_ptr[G];
sum_in_b += src_pix_ptr[B];
}
stack_ptr = rx;
xp = rx;
if (xp > wm)
{
xp = wm;
}
src_pix_ptr = img.pix_ptr(xp, y);
dst_pix_ptr = img.pix_ptr(0, y);
for (x = 0; x < w; x++)
{
dst_pix_ptr[R] = (sum_r * mul_sum) >> shr_sum;
dst_pix_ptr[G] = (sum_g * mul_sum) >> shr_sum;
dst_pix_ptr[B] = (sum_b * mul_sum) >> shr_sum;
dst_pix_ptr += Img::pix_width;
sum_r -= sum_out_r;
sum_g -= sum_out_g;
sum_b -= sum_out_b;
stack_start = stack_ptr + div - rx;
if (stack_start >= div)
{
stack_start -= div;
}
stack_pix_ptr = &stack[stack_start];
sum_out_r -= stack_pix_ptr->r;
sum_out_g -= stack_pix_ptr->g;
sum_out_b -= stack_pix_ptr->b;
if (xp < wm)
{
src_pix_ptr += Img::pix_width;
++xp;
}
stack_pix_ptr->r = src_pix_ptr[R];
stack_pix_ptr->g = src_pix_ptr[G];
stack_pix_ptr->b = src_pix_ptr[B];
sum_in_r += src_pix_ptr[R];
sum_in_g += src_pix_ptr[G];
sum_in_b += src_pix_ptr[B];
sum_r += sum_in_r;
sum_g += sum_in_g;
sum_b += sum_in_b;
++stack_ptr;
if (stack_ptr >= div)
{
stack_ptr = 0;
}
stack_pix_ptr = &stack[stack_ptr];
sum_out_r += stack_pix_ptr->r;
sum_out_g += stack_pix_ptr->g;
sum_out_b += stack_pix_ptr->b;
sum_in_r -= stack_pix_ptr->r;
sum_in_g -= stack_pix_ptr->g;
sum_in_b -= stack_pix_ptr->b;
}
}
}
if (ry > 0)
{
if (ry > 254)
{
ry = 254;
}
div = ry * 2 + 1;
mul_sum = stack_blur_tables.g_stack_blur8_mul[ry];
shr_sum = stack_blur_tables.g_stack_blur8_shr[ry];
stack.allocate(div);
int stride = img.stride();
for (x = 0; x < w; x++)
{
sum_r =
sum_g =
sum_b =
sum_in_r =
sum_in_g =
sum_in_b =
sum_out_r =
sum_out_g =
sum_out_b = 0;
src_pix_ptr = img.pix_ptr(x, 0);
for (i = 0; i <= ry; i++)
{
stack_pix_ptr = &stack[i];
stack_pix_ptr->r = src_pix_ptr[R];
stack_pix_ptr->g = src_pix_ptr[G];
stack_pix_ptr->b = src_pix_ptr[B];
sum_r += src_pix_ptr[R] * (i + 1);
sum_g += src_pix_ptr[G] * (i + 1);
sum_b += src_pix_ptr[B] * (i + 1);
sum_out_r += src_pix_ptr[R];
sum_out_g += src_pix_ptr[G];
sum_out_b += src_pix_ptr[B];
}
for (i = 1; i <= ry; i++)
{
if (i <= hm)
{
src_pix_ptr += stride;
}
stack_pix_ptr = &stack[i + ry];
stack_pix_ptr->r = src_pix_ptr[R];
stack_pix_ptr->g = src_pix_ptr[G];
stack_pix_ptr->b = src_pix_ptr[B];
sum_r += src_pix_ptr[R] * (ry + 1 - i);
sum_g += src_pix_ptr[G] * (ry + 1 - i);
sum_b += src_pix_ptr[B] * (ry + 1 - i);
sum_in_r += src_pix_ptr[R];
sum_in_g += src_pix_ptr[G];
sum_in_b += src_pix_ptr[B];
}
stack_ptr = ry;
yp = ry;
if (yp > hm)
{
yp = hm;
}
src_pix_ptr = img.pix_ptr(x, yp);
dst_pix_ptr = img.pix_ptr(x, 0);
for (y = 0; y < h; y++)
{
dst_pix_ptr[R] = (sum_r * mul_sum) >> shr_sum;
dst_pix_ptr[G] = (sum_g * mul_sum) >> shr_sum;
dst_pix_ptr[B] = (sum_b * mul_sum) >> shr_sum;
dst_pix_ptr += stride;
sum_r -= sum_out_r;
sum_g -= sum_out_g;
sum_b -= sum_out_b;
stack_start = stack_ptr + div - ry;
if (stack_start >= div)
{
stack_start -= div;
}
stack_pix_ptr = &stack[stack_start];
sum_out_r -= stack_pix_ptr->r;
sum_out_g -= stack_pix_ptr->g;
sum_out_b -= stack_pix_ptr->b;
if (yp < hm)
{
src_pix_ptr += stride;
++yp;
}
stack_pix_ptr->r = src_pix_ptr[R];
stack_pix_ptr->g = src_pix_ptr[G];
stack_pix_ptr->b = src_pix_ptr[B];
sum_in_r += src_pix_ptr[R];
sum_in_g += src_pix_ptr[G];
sum_in_b += src_pix_ptr[B];
sum_r += sum_in_r;
sum_g += sum_in_g;
sum_b += sum_in_b;
++stack_ptr;
if (stack_ptr >= div)
{
stack_ptr = 0;
}
stack_pix_ptr = &stack[stack_ptr];
sum_out_r += stack_pix_ptr->r;
sum_out_g += stack_pix_ptr->g;
sum_out_b += stack_pix_ptr->b;
sum_in_r -= stack_pix_ptr->r;
sum_in_g -= stack_pix_ptr->g;
sum_in_b -= stack_pix_ptr->b;
}
}
}
#endif
}
//--------------------------------------------------------------------
public ImgSpanGenRGB_BilinearClip(IImageReaderWriter src,
Drawing.Color back_color,
ISpanInterpolator inter)
: base(inter)
{
m_bgcolor = back_color;
srcRW = (ImageReaderWriterBase)src;
}
void StackBlurRGB24(ImageReaderWriterBase img, int rx, int ry)
{
throw new NotImplementedException();
#if false
//typedef typename Img::color_type color_type;
//typedef typename Img::order_type order_type;
int x, y, xp, yp, i;
int stack_ptr;
int stack_start;
byte* src_pix_ptr;
byte* dst_pix_ptr;
color_type* stack_pix_ptr;
int sum_r;
int sum_g;
int sum_b;
int sum_in_r;
int sum_in_g;
int sum_in_b;
int sum_out_r;
int sum_out_g;
int sum_out_b;
int w = img.width();
int h = img.height();
int wm = w - 1;
int hm = h - 1;
int div;
int mul_sum;
int shr_sum;
pod_vector<color_type> stack;
if(rx > 0)
{
if(rx > 254) rx = 254;
div = rx * 2 + 1;
mul_sum = stack_blur_tables.g_stack_blur8_mul[rx];
shr_sum = stack_blur_tables.g_stack_blur8_shr[rx];
stack.allocate(div);
for(y = 0; y < h; y++)
{
sum_r =
sum_g =
sum_b =
sum_in_r =
sum_in_g =
sum_in_b =
sum_out_r =
sum_out_g =
sum_out_b = 0;
src_pix_ptr = img.pix_ptr(0, y);
for(i = 0; i <= rx; i++)
{
stack_pix_ptr = &stack[i];
stack_pix_ptr->r = src_pix_ptr[R];
stack_pix_ptr->g = src_pix_ptr[G];
stack_pix_ptr->b = src_pix_ptr[B];
sum_r += src_pix_ptr[R] * (i + 1);
sum_g += src_pix_ptr[G] * (i + 1);
sum_b += src_pix_ptr[B] * (i + 1);
sum_out_r += src_pix_ptr[R];
sum_out_g += src_pix_ptr[G];
sum_out_b += src_pix_ptr[B];
}
for(i = 1; i <= rx; i++)
{
if(i <= wm) src_pix_ptr += Img::pix_width;
stack_pix_ptr = &stack[i + rx];
stack_pix_ptr->r = src_pix_ptr[R];
stack_pix_ptr->g = src_pix_ptr[G];
stack_pix_ptr->b = src_pix_ptr[B];
sum_r += src_pix_ptr[R] * (rx + 1 - i);
sum_g += src_pix_ptr[G] * (rx + 1 - i);
sum_b += src_pix_ptr[B] * (rx + 1 - i);
sum_in_r += src_pix_ptr[R];
sum_in_g += src_pix_ptr[G];
sum_in_b += src_pix_ptr[B];
}
stack_ptr = rx;
xp = rx;
if(xp > wm) xp = wm;
src_pix_ptr = img.pix_ptr(xp, y);
dst_pix_ptr = img.pix_ptr(0, y);
for(x = 0; x < w; x++)
{
dst_pix_ptr[R] = (sum_r * mul_sum) >> shr_sum;
dst_pix_ptr[G] = (sum_g * mul_sum) >> shr_sum;
dst_pix_ptr[B] = (sum_b * mul_sum) >> shr_sum;
dst_pix_ptr += Img::pix_width;
sum_r -= sum_out_r;
sum_g -= sum_out_g;
sum_b -= sum_out_b;
stack_start = stack_ptr + div - rx;
if(stack_start >= div) stack_start -= div;
stack_pix_ptr = &stack[stack_start];
sum_out_r -= stack_pix_ptr->r;
sum_out_g -= stack_pix_ptr->g;
sum_out_b -= stack_pix_ptr->b;
if(xp < wm)
{
src_pix_ptr += Img::pix_width;
++xp;
}
stack_pix_ptr->r = src_pix_ptr[R];
stack_pix_ptr->g = src_pix_ptr[G];
stack_pix_ptr->b = src_pix_ptr[B];
sum_in_r += src_pix_ptr[R];
sum_in_g += src_pix_ptr[G];
sum_in_b += src_pix_ptr[B];
sum_r += sum_in_r;
sum_g += sum_in_g;
sum_b += sum_in_b;
++stack_ptr;
if(stack_ptr >= div) stack_ptr = 0;
stack_pix_ptr = &stack[stack_ptr];
sum_out_r += stack_pix_ptr->r;
sum_out_g += stack_pix_ptr->g;
sum_out_b += stack_pix_ptr->b;
sum_in_r -= stack_pix_ptr->r;
sum_in_g -= stack_pix_ptr->g;
sum_in_b -= stack_pix_ptr->b;
}
}
}
if(ry > 0)
{
if(ry > 254) ry = 254;
div = ry * 2 + 1;
mul_sum = stack_blur_tables.g_stack_blur8_mul[ry];
shr_sum = stack_blur_tables.g_stack_blur8_shr[ry];
stack.allocate(div);
int stride = img.stride();
for(x = 0; x < w; x++)
{
sum_r =
sum_g =
sum_b =
sum_in_r =
sum_in_g =
sum_in_b =
sum_out_r =
sum_out_g =
sum_out_b = 0;
src_pix_ptr = img.pix_ptr(x, 0);
for(i = 0; i <= ry; i++)
{
stack_pix_ptr = &stack[i];
stack_pix_ptr->r = src_pix_ptr[R];
stack_pix_ptr->g = src_pix_ptr[G];
stack_pix_ptr->b = src_pix_ptr[B];
sum_r += src_pix_ptr[R] * (i + 1);
sum_g += src_pix_ptr[G] * (i + 1);
sum_b += src_pix_ptr[B] * (i + 1);
sum_out_r += src_pix_ptr[R];
sum_out_g += src_pix_ptr[G];
sum_out_b += src_pix_ptr[B];
}
for(i = 1; i <= ry; i++)
{
if(i <= hm) src_pix_ptr += stride;
stack_pix_ptr = &stack[i + ry];
stack_pix_ptr->r = src_pix_ptr[R];
stack_pix_ptr->g = src_pix_ptr[G];
stack_pix_ptr->b = src_pix_ptr[B];
sum_r += src_pix_ptr[R] * (ry + 1 - i);
sum_g += src_pix_ptr[G] * (ry + 1 - i);
sum_b += src_pix_ptr[B] * (ry + 1 - i);
sum_in_r += src_pix_ptr[R];
sum_in_g += src_pix_ptr[G];
sum_in_b += src_pix_ptr[B];
}
stack_ptr = ry;
yp = ry;
if(yp > hm) yp = hm;
src_pix_ptr = img.pix_ptr(x, yp);
dst_pix_ptr = img.pix_ptr(x, 0);
for(y = 0; y < h; y++)
{
dst_pix_ptr[R] = (sum_r * mul_sum) >> shr_sum;
dst_pix_ptr[G] = (sum_g * mul_sum) >> shr_sum;
dst_pix_ptr[B] = (sum_b * mul_sum) >> shr_sum;
dst_pix_ptr += stride;
sum_r -= sum_out_r;
sum_g -= sum_out_g;
sum_b -= sum_out_b;
stack_start = stack_ptr + div - ry;
if(stack_start >= div) stack_start -= div;
stack_pix_ptr = &stack[stack_start];
sum_out_r -= stack_pix_ptr->r;
sum_out_g -= stack_pix_ptr->g;
sum_out_b -= stack_pix_ptr->b;
if(yp < hm)
{
src_pix_ptr += stride;
++yp;
}
stack_pix_ptr->r = src_pix_ptr[R];
stack_pix_ptr->g = src_pix_ptr[G];
stack_pix_ptr->b = src_pix_ptr[B];
sum_in_r += src_pix_ptr[R];
sum_in_g += src_pix_ptr[G];
sum_in_b += src_pix_ptr[B];
sum_r += sum_in_r;
sum_g += sum_in_g;
sum_b += sum_in_b;
++stack_ptr;
if(stack_ptr >= div) stack_ptr = 0;
stack_pix_ptr = &stack[stack_ptr];
sum_out_r += stack_pix_ptr->r;
sum_out_g += stack_pix_ptr->g;
sum_out_b += stack_pix_ptr->b;
sum_in_r -= stack_pix_ptr->r;
sum_in_g -= stack_pix_ptr->g;
sum_in_b -= stack_pix_ptr->b;
}
}
}
#endif
}
void StackBlurRGBA32(ImageReaderWriterBase img, int radius, int ry)
{
int width = img.Width;
int w4 = img.Width * 4;
int height = img.Height;
int[] srcBuffer = new int[width * height];
ImageReaderWriterBase.CopySubBufferToInt32Array(img, 0, 0, width, height, srcBuffer);
StackBlurARGB.FastBlur32ARGB(srcBuffer, srcBuffer, img.Width, img.Height, radius);
int i = 0;
for (int y = 0; y < height; ++y)
{
for (int x = 0; x < width; ++x)
{
int dest = srcBuffer[i];
img.SetPixel(x, y,
Color.FromArgb(
(byte)((dest >> 16) & 0xff),
(byte)((dest >> 8) & 0xff),
(byte)((dest) & 0xff)));
i++;
}
}
}
public ImgSpanGenRGBA_BilinearClip(IImageReaderWriter src,
Drawing.Color back_color,
ISpanInterpolator inter)
: base(inter)
{
m_bgcolor = back_color;
srcRW = (ImageReaderWriterBase)src;
bytesBetweenPixelInclusive = srcRW.BytesBetweenPixelsInclusive;
}
