public RenderVertexBufferHelper(GSVertexBuffer vb)
{
this.vb = vb;
if (vb == null)
{
return;
}
GS.RenderStart(true);
}
public static unsafe void LoadVertexBuffer(GSVertexBuffer vertexBuffer)
{
IntPtr ptr = IntPtr.Zero;
if (vertexBuffer != null)
{
ptr = vertexBuffer.GetPointer();
}
libobs.gs_load_vertexbuffer(ptr);
}
public static unsafe GSVertexBuffer RenderSave()
{
IntPtr ptr = libobs.gs_render_save();
if (ptr == null)
{
return(null);
}
GSVertexBuffer vb = new GSVertexBuffer(ptr);
return(vb);
}
public void Dispose()
{
if (vb == null)
{
return;
}
GSVertexBuffer newvb = GS.RenderSave();
// transfer the internal pointer to old object
vb.Dispose();
vb.instance = newvb.instance;
newvb.instance = IntPtr.Zero;
newvb.Dispose();
}
public RenderVertexBufferHelper(GSVertexBuffer vb)
{
this.vb = vb;
if (vb == null)
return;
GS.RenderStart(true);
}
/// <summary>
/// Render data to vertex buffer, used with using pattern (RAII).
/// Calls RenderStart, and RenderSave at the end of the using block.
/// </summary>
/// <example>
/// GSVertexBuffer vb = new GSVertexBuffer();
/// using (GS.RenderVertexBuffer(vb))
/// {
/// ...
/// }
/// </example>
public static RenderVertexBufferHelper RenderVertexBuffer(GSVertexBuffer vb)
{
return new RenderVertexBufferHelper(vb);
}
public static unsafe GSVertexBuffer RenderSave()
{
IntPtr ptr = libobs.gs_render_save();
if (ptr == null)
return null;
GSVertexBuffer vb = new GSVertexBuffer(ptr);
return vb;
}
public static unsafe void LoadVertexBuffer(GSVertexBuffer vertexBuffer)
{
IntPtr ptr = IntPtr.Zero;
if (vertexBuffer != null)
ptr = vertexBuffer.GetPointer();
libobs.gs_load_vertexbuffer(ptr);
}
/// <summary>
/// Render data to vertex buffer, used with using pattern (RAII).
/// Calls RenderStart, and RenderSave at the end of the using block.
/// </summary>
/// <example>
/// GSVertexBuffer vb = new GSVertexBuffer();
/// using (GS.RenderVertexBuffer(vb))
/// {
/// ...
/// }
/// </example>
public static RenderVertexBufferHelper RenderVertexBuffer(GSVertexBuffer vb)
{
return(new RenderVertexBufferHelper(vb));
}
private void InitPrimitives()
{
using (GS.GraphicsContext())
{
// box from vertices
boxPrimitive = new GSVertexBuffer();
using (GS.RenderVertexBuffer(boxPrimitive))
{
GS.Vertex2f(0.0f, 0.0f);
GS.Vertex2f(0.0f, 1.0f);
GS.Vertex2f(1.0f, 1.0f);
GS.Vertex2f(1.0f, 1.0f);
GS.Vertex2f(1.0f, 0.0f);
GS.Vertex2f(0.0f, 0.0f);
}
// circle from vertices
circlePrimitive = new GSVertexBuffer();
using (GS.RenderVertexBuffer(circlePrimitive))
{
for (int i = 0; i <= 360; i += 360 / 20)
{
double pos = Math.PI * (double)i / 180.0;
GS.Vertex2f((float)Math.Cos(pos), (float)Math.Sin(pos));
}
}
}
}
public void Load(GSVertexBuffer vertexBuffer)
{
libobs.gs_load_vertexbuffer(vertexBuffer.GetPointer());
}
public void Flush(GSVertexBuffer vertexBuffer)
{
libobs.gs_vertexbuffer_flush(vertexBuffer.GetPointer());
}
public void Flush(GSVertexBuffer vertexBuffer)
{
libobs.gs_vertexbuffer_flush(vertexBuffer.GetPointer());
}
public void Load(GSVertexBuffer vertexBuffer)
{
libobs.gs_load_vertexbuffer(vertexBuffer.GetPointer());
}