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stgsharp/源代码/StgSharp/Graphics/OpenGL/glRenderStream.cs
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C#

//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
// file="glRenderStream.cs"
// Project: StgSharp
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the “Software”), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software,
// and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and
// this permission notice shall be included in all copies
// or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”,
// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH
// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
using StgSharp.Logic;
using StgSharp.Math;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
namespace StgSharp.Graphics.OpenGL
{
public abstract partial class glRenderStream : RenderStream
{
private GlFunction _context;
internal protected GlFunction GL
{
get { return _context; }
}
/// <summary>
/// Init an OpenGl viewPortDisplay if current form has not been binded to any viewPortDisplay.
/// and set the viewPortDisplay binded to current form as current OpenGL viewPortDisplay.
/// </summary>
/// <exception cref="Exception">
/// Something goes wrong and StgSharp fails in creating a new OpenGL viewPortDisplay.
/// </exception>
public unsafe void MakeAsCurrentContext()
{
if (ContextHandle == default)
{
ContextHandle = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(GLcontext)));
GLcontext* contextID = (GLcontext*)ContextHandle;
contextID->glGetString = (delegate*<uint, IntPtr>)IntPtr.Zero;
}
if (GL == null)
{
_context = GlFunction.BuildGlFunctionPackage(ContextHandle);
}
if (GlFunction.CurrentGL != GL)
{
GlFunction.CurrentGL = GL;
InternalIO.glfwMakeContextCurrent(CanvasHandle);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public override void SetSizeLimit(int minWidth, int minHeight, int maxWidth, int maxHeight)
{
InternalIO.glfwSetWindowSizeLimits(this.CanvasHandle, minWidth, minHeight, maxWidth, maxHeight);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
internal override sealed void Draw()
{
MakeAsCurrentContext();
Main();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
internal override sealed void PlatformSpecifiedInit()
{
MakeAsCurrentContext();
glManager.LoadOpenGLApiTo(Port.GraphicHandle);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
internal override sealed void Terminate()
{
CustomizeDeinit();
}
protected override sealed Uniform<Matrix44> NativeCameraUniform(ShaderProgram source, string name)
{
NativeCamera.GainAllUniforms(source, name);
return NativeCamera.convertedUniform;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
protected override sealed void NativeCameraViewRange(Radius fieldOfRange, vec2d offset, (float frontDepth, float backDepth) viewDepth)
{
NativeCamera.SetViewRange(fieldOfRange, this.Size, offset, viewDepth);
}
protected override sealed void NativeCameraViewTarget(vec3d position, vec3d direction, vec3d up)
{
NativeCamera.SetViewDirection(position, direction, up);
}
#region Key Control
protected KeyStatus CheckKey(KeyboardKey key)
{
return InternalIO.glfwGetKey(this.CanvasHandle, (int)key);
}
protected KeyStatus CheckKey(Mouse key)
{
return InternalIO.glfwGetKey(this.CanvasHandle, (int)key);
}
protected KeyStatus CheckKey(Joystick key)
{
return InternalIO.glfwGetKey(this.CanvasHandle, (int)key);
}
#endregion
}
}