本文整理汇总了C#中System.Drawing.Imaging.BitmapData.GetPointer方法的典型用法代码示例。如果您正苦于以下问题：C# BitmapData.GetPointer方法的具体用法？C# BitmapData.GetPointer怎么用？C# BitmapData.GetPointer使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Drawing.Imaging.BitmapData的用法示例。
在下文中一共展示了BitmapData.GetPointer方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: New
public static Bitmap New(BitmapData data_bmp)
{
Bitmap ans; New(out ans,data_bmp.Width, data_bmp.Height);
BitmapData data_ans = ans.GetBitmapData();
byte* ptr_bmp = data_bmp.GetPointer();
byte* ptr_ans = data_ans.GetPointer();
Parallel.For(0, data_ans.Height, h =>
{
int i = data_ans.Stride * h;
for (int w = 0; w < data_ans.Width; w++)
{
ptr_ans[i] = ptr_bmp[i]; i++;
ptr_ans[i] = ptr_bmp[i]; i++;
ptr_ans[i] = ptr_bmp[i]; i++;
ptr_ans[i] = ptr_bmp[i]; i++;
}
});
ans.UnlockBits(data_ans);
return ans;
}示例2: DrawOpaque
public static void DrawOpaque(this BitmapData data_bac,BitmapData data_bmp)
{
if(data_bac.Width!=data_bmp.Width||data_bac.Height!=data_bmp.Height)
{
throw new ArgumentException("Both Size must be same");
}
byte* ptr_bac = data_bac.GetPointer();
byte* ptr_bmp = data_bmp.GetPointer();
Parallel.For(0, data_bac.Height, h =>
{
int i1 = h * data_bac.Stride;
int i2 = h * data_bmp.Stride;
for (int w = 0; w < data_bac.Width; w++)
{
if (ptr_bac[i1 + 3] == 0)
{
i1 += 4;
i2 += 4;
}
else if (ptr_bac[i1 + 3] == 255)
{
ptr_bac[i1++] = ptr_bmp[i2++];
ptr_bac[i1++] = ptr_bmp[i2++];
ptr_bac[i1++] = ptr_bmp[i2++];
ptr_bac[i1++] = ptr_bmp[i2++];
}
else throw new ArgumentException("Alpha value must be 0 or 255");
}
});
}示例3: Paste_Transparent
static void Paste_Transparent(this BitmapData data_bac, BitmapData data_bmp, Point p, Rectangle region = default(Rectangle))
{
if (region == default(Rectangle)) region = new Rectangle(0, 0, data_bac.Width, data_bac.Height);
byte* ptr_bac = data_bac.GetPointer();
byte* ptr_bmp = data_bmp.GetPointer();
int w1 = Math.Max(Math.Max(-p.X, 0), region.X - p.X);
int w2 = Math.Min(Math.Min(data_bmp.Width, data_bac.Width - p.X), region.X + region.Width - p.X);
int h1 = Math.Max(Math.Max(-p.Y, 0), region.Y - p.Y);
int h2 = Math.Min(Math.Min(data_bmp.Height, data_bac.Height - p.Y), region.Y + region.Height - p.Y);
if (w1 >= w2 || h1 >= h2) return;
ptr_bac += p.Y * data_bac.Stride + 4 * (w1 + p.X);
ptr_bmp += 4 * w1;
Parallel.For(h1, h2, h =>
{
int i1 = data_bac.Stride * h;
int i2 = data_bmp.Stride * h;
for (int w = w1; w < w2; w++)
{
if (ptr_bmp[i2 + 3] == 255)
{
ptr_bac[i1++] = ptr_bmp[i2++];
ptr_bac[i1++] = ptr_bmp[i2++];
ptr_bac[i1++] = ptr_bmp[i2++];
ptr_bac[i1++] = ptr_bmp[i2++];
}
else if (ptr_bmp[i2 + 3] == 0) { i1 += 4; i2 += 4; }
else
{
Bitmap bmp = BITMAP.New(data_bmp);
bmp.Save("ErrorImage", ImageFormat.Png);
BitmapBox.Show(bmp);
throw new ArgumentException("Alpha Value must be 0 or 255: " + ptr_bmp[i2 + 3].ToString() + "(" + w.ToString() + "," + h.ToString() + ")");
}
}
});
}示例4: Paste_Gradient
static void Paste_Gradient(this BitmapData data_bac, BitmapData data_bmp, Point p, Rectangle region = default(Rectangle))
{
if (region == default(Rectangle)) region = new Rectangle(0, 0, data_bac.Width, data_bac.Height);
byte* ptr_bac = data_bac.GetPointer();
byte* ptr_bmp = data_bmp.GetPointer();
int w1 = Math.Max(Math.Max(-p.X, 0), region.X - p.X);
int w2 = Math.Min(Math.Min(data_bmp.Width, data_bac.Width - p.X), region.X + region.Width - p.X);
int h1 = Math.Max(Math.Max(-p.Y, 0), region.Y - p.Y);
int h2 = Math.Min(Math.Min(data_bmp.Height, data_bac.Height - p.Y), region.Y + region.Height - p.Y);
if (w1 >= w2 || h1 >= h2) return;
ptr_bac += p.Y * data_bac.Stride + 4 * (w1 + p.X);
ptr_bmp += 4 * w1;
Parallel.For(h1, h2, h =>
{
int i1 = data_bac.Stride * h;
int i2 = data_bmp.Stride * h;
int b;
for (int w = w1; w < w2; w++, i1++, i2++)
{
b = ptr_bmp[i2 + 3];
ptr_bac[i1] = b.Approach_Byte(ptr_bac[i1], ptr_bmp[i2]); i1++; i2++;
ptr_bac[i1] = b.Approach_Byte(ptr_bac[i1], ptr_bmp[i2]); i1++; i2++;
ptr_bac[i1] = b.Approach_Byte(ptr_bac[i1], ptr_bmp[i2]); i1++; i2++;
}
});
}示例5: DrawBackgroundImage
unsafe static void DrawBackgroundImage(BitmapData data_bac)
{
byte* ptr_bac = data_bac.GetPointer();
Parallel.For(0, data_bac.Height, h =>
{
int i = h * data_bac.Stride;
Color c = GetColorByScreenY(h);
for (int w = 0; w < data_bac.Width; w++)
{
ptr_bac[i++] = c.B;
ptr_bac[i++] = c.G;
ptr_bac[i++] = c.R;
ptr_bac[i++] = c.A;
}
});
foreach (var a in UNDER)
{
a.DrawImage(data_bac);
}
Sky.DrawImage(data_bac);
}