// COPYRIGHT (C) Tom. ALL RIGHTS RESERVED.
|
// THE AntdUI PROJECT IS AN WINFORM LIBRARY LICENSED UNDER THE Apache-2.0 License.
|
// LICENSED UNDER THE Apache License, VERSION 2.0 (THE "License")
|
// YOU MAY NOT USE THIS FILE EXCEPT IN COMPLIANCE WITH THE License.
|
// YOU MAY OBTAIN A COPY OF THE LICENSE AT
|
//
|
// http://www.apache.org/licenses/LICENSE-2.0
|
//
|
// UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING, SOFTWARE
|
// DISTRIBUTED UNDER THE LICENSE IS DISTRIBUTED ON AN "AS IS" BASIS,
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
// SEE THE LICENSE FOR THE SPECIFIC LANGUAGE GOVERNING PERMISSIONS AND
|
// LIMITATIONS UNDER THE License.
|
// GITEE: https://gitee.com/antdui/AntdUI
|
// GITHUB: https://github.com/AntdUI/AntdUI
|
// CSDN: https://blog.csdn.net/v_132
|
// QQ: 17379620
|
|
using System;
|
using System.Drawing;
|
using System.Drawing.Imaging;
|
|
namespace AntdUI
|
{
|
public unsafe class UnsafeBitmap : IDisposable
|
{
|
public ColorBgra* Pointer { get; private set; }
|
public bool IsLocked { get; private set; }
|
public int Width { get; private set; }
|
public int Height { get; private set; }
|
|
public int PixelCount => Width * Height;
|
|
private Bitmap bitmap;
|
private BitmapData bitmapData;
|
|
public UnsafeBitmap(Bitmap bitmap, bool lockBitmap = false, ImageLockMode imageLockMode = ImageLockMode.ReadWrite)
|
{
|
this.bitmap = bitmap;
|
Width = bitmap.Width;
|
Height = bitmap.Height;
|
|
if (lockBitmap)
|
{
|
Lock(imageLockMode);
|
}
|
}
|
|
public void Lock(ImageLockMode imageLockMode = ImageLockMode.ReadWrite)
|
{
|
if (!IsLocked)
|
{
|
IsLocked = true;
|
bitmapData = bitmap.LockBits(new Rectangle(0, 0, Width, Height), imageLockMode, PixelFormat.Format32bppArgb);
|
Pointer = (ColorBgra*)bitmapData.Scan0.ToPointer();
|
}
|
}
|
|
public void Unlock()
|
{
|
if (IsLocked)
|
{
|
bitmap.UnlockBits(bitmapData);
|
bitmapData = null;
|
Pointer = null;
|
IsLocked = false;
|
}
|
}
|
|
public static bool operator ==(UnsafeBitmap bmp1, UnsafeBitmap bmp2)
|
{
|
return ReferenceEquals(bmp1, bmp2) || bmp1.Equals(bmp2);
|
}
|
|
public static bool operator !=(UnsafeBitmap bmp1, UnsafeBitmap bmp2)
|
{
|
return !(bmp1 == bmp2);
|
}
|
|
public override bool Equals(object? obj)
|
{
|
return obj is UnsafeBitmap unsafeBitmap && Compare(unsafeBitmap, this);
|
}
|
|
public override int GetHashCode()
|
{
|
return PixelCount;
|
}
|
|
public static bool Compare(UnsafeBitmap bmp1, UnsafeBitmap bmp2)
|
{
|
int pixelCount = bmp1.PixelCount;
|
|
if (pixelCount != bmp2.PixelCount)
|
{
|
return false;
|
}
|
|
bmp1.Lock(ImageLockMode.ReadOnly);
|
bmp2.Lock(ImageLockMode.ReadOnly);
|
|
ColorBgra* pointer1 = bmp1.Pointer;
|
ColorBgra* pointer2 = bmp2.Pointer;
|
|
for (int i = 0; i < pixelCount; i++)
|
{
|
if (pointer1->Bgra != pointer2->Bgra)
|
{
|
return false;
|
}
|
|
pointer1++;
|
pointer2++;
|
}
|
|
return true;
|
}
|
|
public bool IsTransparent()
|
{
|
int pixelCount = PixelCount;
|
|
ColorBgra* pointer = Pointer;
|
|
for (int i = 0; i < pixelCount; i++)
|
{
|
if (pointer->Alpha < 255)
|
{
|
return true;
|
}
|
|
pointer++;
|
}
|
|
return false;
|
}
|
|
public ColorBgra GetPixel(int i)
|
{
|
return Pointer[i];
|
}
|
|
public ColorBgra GetPixel(int x, int y)
|
{
|
return Pointer[x + (y * Width)];
|
}
|
|
public void SetPixel(int i, ColorBgra color)
|
{
|
Pointer[i] = color;
|
}
|
|
public void SetPixel(int i, uint color)
|
{
|
Pointer[i] = color;
|
}
|
|
public void SetPixel(int x, int y, ColorBgra color)
|
{
|
Pointer[x + (y * Width)] = color;
|
}
|
|
public void SetPixel(int x, int y, uint color)
|
{
|
Pointer[x + (y * Width)] = color;
|
}
|
|
public void ClearPixel(int i)
|
{
|
Pointer[i] = 0;
|
}
|
|
public void ClearPixel(int x, int y)
|
{
|
Pointer[x + (y * Width)] = 0;
|
}
|
|
public void Dispose()
|
{
|
Unlock();
|
}
|
}
|
}
|
