protected void SetUniform1(string name, int value)
{
var location = GL.GetUniformLocation(Id, name);
GL.Uniform1(location, value);
OpenGlErrorThrower.ThrowIfAny();
}
public void SetMatrix(Matrix4 matrix, string location)
{
var matrixLocation = GL.GetUniformLocation(Id, location);
OpenGlErrorThrower.ThrowIfAny();
GL.UniformMatrix4(matrixLocation, false, ref matrix);
OpenGlErrorThrower.ThrowIfAny();
}
public void SetRange(float min, float max)
{
var minLocation = GL.GetUniformLocation(Id, "min");
OpenGlErrorThrower.ThrowIfAny();
var maxLocation = GL.GetUniformLocation(Id, "max");
OpenGlErrorThrower.ThrowIfAny();
GL.Uniform1(maxLocation, max);
OpenGlErrorThrower.ThrowIfAny();
GL.Uniform1(minLocation, min);
OpenGlErrorThrower.ThrowIfAny();
}
public override void Draw(ViewParametres viewParametres)
{
// var rel = _texture.Size.Height / viewParams.ViewportSize.Height;
// _model = Matrix4.CreateScale(viewParams.Zoom * rel * _texture.Ratio, viewParams.Zoom * rel, 1);
// shader.SetModelMatrix(_model);
if (ImageHandler?.OpenGlTextureId == null) // Try upload to videocard?
{
return;
}
GL.BindTexture(TextureTarget.Texture2D, ImageHandler.OpenGlTextureId.Value);
GL.BindVertexArray(_vao);
GL.DrawElements(BeginMode.Triangles, 6, DrawElementsType.UnsignedInt, 0);
GL.BindVertexArray(0);
GL.BindTexture(TextureTarget.Texture2D, 0);
OpenGlErrorThrower.ThrowIfAny();
}
public void SetViewRange(float bottom, float top)
{
if (bottom < 0 || top > 1 || bottom > top)
{
throw new InvalidOperationException();
}
var bottomLocation = GL.GetUniformLocation(Id, "bottom");
OpenGlErrorThrower.ThrowIfAny();
var topLocation = GL.GetUniformLocation(Id, "top");
OpenGlErrorThrower.ThrowIfAny();
GL.Uniform1(topLocation, top);
OpenGlErrorThrower.ThrowIfAny();
GL.Uniform1(bottomLocation, bottom);
OpenGlErrorThrower.ThrowIfAny();
}
