/// <summary>
/// Default constructor.
/// </summary>
public GLSLLinkProgram(GLSLGpuProgram vertexProgram, GLSLGpuProgram geometryProgram, GLSLGpuProgram fragmentProgram)
{
this.vertexProgram = vertexProgram;
this.geometryProgram = geometryProgram;
this.fragmentProgram = fragmentProgram;
this.uniformRefsBuilt = false;
this.linked = false;
this.triedToLinkAndFailed = false;
}
/// <summary>
/// Set the active vertex shader for the next rendering state.
/// </summary>
/// <remarks>
/// The active program object will be cleared.
/// Normally called from the GLSLGpuProgram.BindProgram and UnbindProgram methods
/// </remarks>
/// <param name="vertexProgram"></param>
public void SetActiveVertexShader(GLSLGpuProgram vertexProgram)
{
if (vertexProgram != this.activeVertexProgram)
{
this.activeVertexProgram = vertexProgram;
// active link program is no longer valid
this.activeLinkProgram = null;
// change back to fixed pipeline
Gl.glUseProgramObjectARB(0);
}
}
/// <summary>
/// Set the active geometry shader for the next rendering state.
/// </summary>
/// <remarks>
/// The active program object will be cleared.
/// Normally called from the GLSLGpuProgram.BindProgram and UnbindProgram methods
/// </remarks>
/// <param name="vertexProgram"></param>
public void SetActiveGeometryShader(GLSLGpuProgram geometryProgram)
{
if (geometryProgram != this.activeGeometryProgram)
{
this.activeGeometryProgram = geometryProgram;
// active link program is no longer valid
this.activeLinkProgram = null;
// change back to fixed pipeline
Gl.glUseProgramObjectARB(0);
}
}
/// <summary>
/// Set the active fragment shader for the next rendering state.
/// </summary>
/// <remarks>
/// The active program object will be cleared.
/// Normally called from the GLSLGpuProgram.BindProgram and UnbindProgram methods
/// </remarks>
/// <param name="fragmentProgram"></param>
public void SetActiveFragmentShader(GLSLGpuProgram fragmentProgram)
{
if (fragmentProgram != this.activeFragmentProgram)
{
this.activeFragmentProgram = fragmentProgram;
// active link program is no longer valid
this.activeLinkProgram = null;
// change back to fixed pipeline
Gl.glUseProgramObjectARB(0);
}
}
protected override void CreateLowLevelImpl()
{
assemblerProgram = new GLSLGpuProgram(this);
}
protected override void CreateLowLevelImpl()
{
assemblerProgram = new GLSLGpuProgram( this );
}
/// <summary>
/// Set the active vertex shader for the next rendering state.
/// </summary>
/// <remarks>
/// The active program object will be cleared.
/// Normally called from the GLSLGpuProgram.BindProgram and UnbindProgram methods
/// </remarks>
/// <param name="vertexProgram"></param>
public void SetActiveVertexShader(GLSLGpuProgram vertexProgram)
{
if(vertexProgram != activeVertexProgram) {
activeVertexProgram = vertexProgram;
// active link program is no longer valid
activeLinkProgram = null;
// change back to fixed pipeline
Gl.glUseProgramObjectARB(0);
}
}
/// <summary>
/// Set the active fragment shader for the next rendering state.
/// </summary>
/// <remarks>
/// The active program object will be cleared.
/// Normally called from the GLSLGpuProgram.BindProgram and UnbindProgram methods
/// </remarks>
/// <param name="fragmentProgram"></param>
public void SetActiveFragmentShader(GLSLGpuProgram fragmentProgram)
{
if(fragmentProgram != activeFragmentProgram) {
activeFragmentProgram = fragmentProgram;
// active link program is no longer valid
activeLinkProgram = null;
// change back to fixed pipeline
Gl.glUseProgramObjectARB(0);
}
}
/// <summary>
/// Set the active geometry shader for the next rendering state.
/// </summary>
/// <remarks>
/// The active program object will be cleared.
/// Normally called from the GLSLGpuProgram.BindProgram and UnbindProgram methods
/// </remarks>
/// <param name="vertexProgram"></param>
public void SetActiveGeometryShader( GLSLGpuProgram geometryProgram )
{
if (geometryProgram != activeGeometryProgram)
{
activeGeometryProgram = geometryProgram;
// active link program is no longer valid
activeLinkProgram = null;
// change back to fixed pipeline
Gl.glUseProgramObjectARB( 0 );
}
}