public void TestDefaultPrecision(ShaderPrecisionContext ctx)
{
if (!HasVersion(2, 0) && !IsGlExtensionSupported("GL_ARB_vertex_shader"))
{
Assert.Inconclusive("OpenGL 2.0 or GL_ARB_vertex_shader not supported");
}
if (!HasVersion(3, 0) && !IsGlExtensionSupported("GL_EXT_transform_feedback"))
{
Assert.Inconclusive("OpenGL 3.0 or GL_EXT_transform_feedback not supported");
}
// Create resources required for test
ctx.CreateResources();
// Set program input
BindShaderProgramAttrib(ctx.Program, ctx.ProgramInput, "vertexIn");
// Set program output
Gl.BindBuffer(BufferTargetARB.TransformFeedbackBuffer, ctx.ProgramOutput);
// Draw on feedback buffer using program
Gl.UseProgram(ctx.Program);
// Transform feedback
Gl.BeginTransformFeedback(Gl.POINTS);
Gl.DrawArrays(PrimitiveType.Points, 0, ctx.ReferenceOutput.Length);
Gl.EndTransformFeedback();
// Get program computation result
float[] feedbackData = new float[ctx.ReferenceOutput.Length];
Gl.GetBufferSubData(BufferTargetARB.TransformFeedbackBuffer, IntPtr.Zero, (uint)feedbackData.Length, feedbackData);
// Check precision
}
public void TestDefaultPrecision(ShaderPrecisionContext ctx)
{
if (!HasVersion(2, 0) && !IsGlExtensionSupported("GL_ARB_vertex_shader"))
Assert.Inconclusive("OpenGL 2.0 or GL_ARB_vertex_shader not supported");
if (!HasVersion(3, 0) && !IsGlExtensionSupported("GL_EXT_transform_feedback"))
Assert.Inconclusive("OpenGL 3.0 or GL_EXT_transform_feedback not supported");
// Create resources required for test
ctx.CreateResources();
// Set program input
BindShaderProgramAttrib(ctx.Program, ctx.ProgramInput, "vertexIn");
// Set program output
Gl.BindBuffer(BufferTargetARB.TransformFeedbackBuffer, ctx.ProgramOutput);
// Draw on feedback buffer using program
Gl.UseProgram(ctx.Program);
// Transform feedback
Gl.BeginTransformFeedback(Gl.POINTS);
Gl.DrawArrays(PrimitiveType.Points, 0, ctx.ReferenceOutput.Length);
Gl.EndTransformFeedback();
// Get program computation result
float[] feedbackData = new float[ctx.ReferenceOutput.Length];
Gl.GetBufferSubData(BufferTargetARB.TransformFeedbackBuffer, IntPtr.Zero, (uint)feedbackData.Length, feedbackData);
// Check precision
}
