/// <summary>
/// Indicates that the specified texture has been deleted and updates the OpenGL state accordingly.
/// </summary>
/// <param name="texture">The texture to delete.</param>
public static void DeleteTexture2D(UInt32 texture)
{
if (GL_TEXTURE_BINDING_2D == texture)
{
GL_TEXTURE_BINDING_2D.Update(0);
glTextureBinding2DByTextureUnit[GL_ACTIVE_TEXTURE] = 0;
VerifyCache();
}
}
/// <summary>
/// Immediately binds a 2D texture to the OpenGL context and updates the state cache.
/// </summary>
/// <param name="texture">The texture to bind to the context.</param>
public static void Texture2D(UInt32 texture)
{
gl.BindTexture(gl.GL_TEXTURE_2D, texture);
gl.ThrowIfError();
GL_TEXTURE_BINDING_2D.Update(texture);
glTextureBinding2DByTextureUnit[GL_ACTIVE_TEXTURE] = texture;
VerifyCache();
}
private void Dispose_BindTexture2D()
{
if (forced || !gl.IsDirectStateAccessAvailable)
{
gl.BindTexture(gl.GL_TEXTURE_2D, oldGL_TEXTURE_BINDING_2D);
gl.ThrowIfError();
GL_TEXTURE_BINDING_2D.Update(oldGL_TEXTURE_BINDING_2D);
glTextureBinding2DByTextureUnit[GL_ACTIVE_TEXTURE] = oldGL_TEXTURE_BINDING_2D;
}
}
private void Dispose_ActiveTexture()
{
gl.ActiveTexture(oldGL_ACTIVE_TEXTURE);
gl.ThrowIfError();
var tb2d = 0u;
glTextureBinding2DByTextureUnit.TryGetValue(oldGL_ACTIVE_TEXTURE, out tb2d);
OpenGLState.GL_ACTIVE_TEXTURE.Update(oldGL_ACTIVE_TEXTURE);
GL_TEXTURE_BINDING_2D.Update(tb2d);
}
/// <summary>
/// Immediately sets the active texture unit and updates the state cache.
/// </summary>
/// <param name="texture">The texture unit to activate.</param>
public static void ActiveTexture(UInt32 texture)
{
gl.ActiveTexture(texture);
gl.ThrowIfError();
var tb2d = 0u;
glTextureBinding2DByTextureUnit.TryGetValue(texture, out tb2d);
GL_ACTIVE_TEXTURE.Update(texture);
GL_TEXTURE_BINDING_2D.Update(tb2d);
VerifyCache();
}
private void Apply_CreateTexture2D(out UInt32 texture)
{
if (SupportsDirectStateAccessCreateFunctions)
{
texture = gl.CreateTexture(gl.GL_TEXTURE_2D);
gl.ThrowIfError();
}
else
{
texture = gl.GenTexture();
gl.ThrowIfError();
if (!gl.IsDirectStateAccessAvailable)
{
gl.BindTexture(gl.GL_TEXTURE_2D, texture);
gl.ThrowIfError();
newGL_TEXTURE_BINDING_2D = texture;
oldGL_TEXTURE_BINDING_2D = GL_TEXTURE_BINDING_2D.Update(texture);
glTextureBinding2DByTextureUnit[GL_ACTIVE_TEXTURE] = texture;
}
}
}
/// <summary>
/// Immediately creates a 2D texture and updates the state cache.
/// </summary>
/// <param name="texture">The identifier of the texture that was created.</param>
public static void CreateTexture2D(out UInt32 texture)
{
if (SupportsDirectStateAccessCreateFunctions)
{
texture = gl.CreateTexture(gl.GL_TEXTURE_2D);
gl.ThrowIfError();
}
else
{
texture = gl.GenTexture();
gl.ThrowIfError();
if (!gl.IsDirectStateAccessAvailable)
{
gl.BindTexture(gl.GL_TEXTURE_2D, texture);
gl.ThrowIfError();
GL_TEXTURE_BINDING_2D.Update(texture);
glTextureBinding2DByTextureUnit[GL_ACTIVE_TEXTURE] = texture;
VerifyCache();
}
}
}
