public ImmediateModeQuads(GraphicsContextAlpha gl, uint max_quads, params VertexFormat[] formats)
{
int num = Math.Log2((int)(max_quads * 4u));
if (1L << (num & 31) < (long)((ulong)(max_quads * 4u)))
{
num++;
}
max_quads = (1u << num) / 4u;
this.m_max_quads = max_quads;
ushort[] array = new ushort[this.m_max_quads * 6u];
ushort[] array2 = new ushort[]
{
0,
1,
3,
0,
3,
2
};
int i = 0;
int num2 = 0;
while (i < (int)max_quads)
{
Common.Assert(num2 + 6 <= array.Length);
for (int j = 0; j < 6; j++)
{
//array[num2++] = (ushort)(i * 4 + (int)array2[j]); //FIXME: overflow
array[num2++] = (ushort)((i * 4 + (int)array2[j]) & 0xffff);
}
i++;
}
this.m_imm = new ImmediateMode <T>(gl, max_quads * 4u, array, 4, 6, formats);
}
public DrawHelpers(GraphicsContextAlpha gl, uint max_vertices)
{
this.GL = gl;
this.m_shader_program = Common.CreateShaderProgram("cg/default.cgx");
this.m_shader_program.SetUniformBinding(0, "MVP");
this.m_shader_program.SetAttributeBinding(0, "p");
this.m_shader_program.SetAttributeBinding(1, "vin_color");
this.m_current_color = Colors.Magenta;
this.m_shader_depth = 0u;
this.m_view_matrix_tag = 4294967295u;
this.m_model_matrix_tag = 4294967295u;
this.m_projection_matrix_tag = 4294967295u;
this.m_imm = new ImmediateMode <DrawHelpers.Vertex>(gl, max_vertices, null, 0, 0, new VertexFormat[]
{
(VertexFormat)259,
(VertexFormat)259
});
}