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// Copyright (c) 2018-2021 Jean-Philippe Bruyère <jp_bruyere@hotmail.com>
//
// This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
using System;
using Drawing2D;
namespace Crow.VkvgBackend
{
public class Surface: ISurface
{
internal IntPtr handle = IntPtr.Zero;
Device vkvgDev;
#region CTOR
public Surface (Device device, int width, int height)
{
vkvgDev = device;
if (width <= 0 || height <= 0)
handle = NativeMethods.vkvg_surface_create (device.Handle, 1, 1);
else
handle = NativeMethods.vkvg_surface_create (device.Handle, (uint)width, (uint)height);
}
public Surface (Device device, Span<byte> data, int width, int heigth)
{
vkvgDev = device;
handle = NativeMethods.vkvg_surface_create_from_bitmap (device.Handle, ref data.GetPinnableReference(), (uint)width, (uint)heigth);
}
public Surface (Device device, string imgPath) {
vkvgDev = device;
handle = NativeMethods.vkvg_surface_create_from_image (device.Handle, imgPath);
}
public Surface (Device device, IntPtr surfHandle) {
vkvgDev = device;
handle = surfHandle;
AddReference ();
}
Surface (IntPtr devHandle, int width, int height)
{
handle = NativeMethods.vkvg_surface_create (devHandle, (uint)width, (uint)height);
}
#endregion
~Surface ()
{
Dispose (false);
}
public IntPtr VkImage => NativeMethods.vkvg_surface_get_vk_image (handle);
public int Width => NativeMethods.vkvg_surface_get_width (handle);
public int Height => NativeMethods.vkvg_surface_get_height (handle);
public void AddReference () => NativeMethods.vkvg_surface_reference (handle);
public uint References () => NativeMethods.vkvg_surface_get_reference_count (handle);
public ISurface CreateSimilar(int width, int height) => new Surface (vkvgDev, width, height);
public void Resize(int width, int height)
{
NativeMethods.vkvg_surface_destroy (handle);
handle = NativeMethods.vkvg_surface_create (vkvgDev.Handle, (uint)width, (uint)height);
}
public void Flush () {
//throw new NotImplementedException ();
}
public void WriteToPng (string path) {
NativeMethods.vkvg_surface_write_to_png (handle, path);
}
public void WriteTo (IntPtr bitmap) {
NativeMethods.vkvg_surface_write_to_memory (handle, bitmap);
}
public void Clear () {
NativeMethods.vkvg_surface_clear (handle);
}
#region IDisposable implementation
public void Dispose ()
{
Dispose (true);
GC.SuppressFinalize (this);
}
protected virtual void Dispose (bool disposing)
{
if (!disposing || handle == IntPtr.Zero)
return;
NativeMethods.vkvg_surface_destroy (handle);
handle = IntPtr.Zero;
}
#endregion
}
}
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