public int CreateIndexBuffer(int sizeInBytes, OpenGL20BufferMode mode)
{
uint bufferHandle = GLHelper.GenBuffer();
GLCore.BindBuffer(BufferTarget.ElementArrayBuffer, bufferHandle);
GLCore.BufferData(BufferTarget.ElementArrayBuffer, (IntPtr)sizeInBytes, IntPtr.Zero, GetBufferMode(mode));
return((int)bufferHandle);
}
private static int CreateCompiledSubShader(ShaderType shaderType, string subShaderCode)
{
uint shaderHandle = GLCore.CreateShader(shaderType);
GLHelper.ShaderSource(shaderHandle, subShaderCode.Replace("precision mediump float;", ""));
GLCore.CompileShader(shaderHandle);
return((int)shaderHandle);
}
private static int CreateCompiledSubShader(ShaderType shaderType, string subShaderCode)
{
uint shaderHandle = GLCore.CreateShader(shaderType);
GLHelper.ShaderSource(shaderHandle, subShaderCode);
GLCore.CompileShader(shaderHandle);
return((int)shaderHandle);
}
private void CreateContext()
{
context = new WglGraphicsContext(window.Handle);
context.UpdateDeviceParameters(24, 8, 0);
context.VSync = Settings.Current.UseVSync;
context.MakeCurrent();
string version = GLHelper.GetString(StringName.Version);
if (string.IsNullOrEmpty(version))
{
return;
}
int majorVersion = int.Parse(version[0] + "");
if (majorVersion < 3 || string.IsNullOrEmpty(GLHelper.GetString(StringName.Extensions)))
{
throw new OpenGLVersionDoesNotSupportShaders();
}
}
public void DeleteTexture(int glHandle)
{
GLHelper.DeleteTexture((uint)glHandle);
}
public int GenerateTexture()
{
return((int)GLHelper.GenTexture());
}
public void DeleteBuffer(int bufferHandle)
{
GLHelper.DeleteBuffer((uint)bufferHandle);
}
public void LoadIndices(int offset, short[] indices, int indexDataSizeInBytes)
{
GLHelper.BufferSubData(BufferTarget.ElementArrayBuffer, offset, indexDataSizeInBytes, indices);
}
public void LoadVertexData <T>(int offset, T[] vertices, int vertexDataSizeInBytes)
where T : struct
{
GLHelper.BufferSubData(BufferTarget.ArrayBuffer, offset, vertexDataSizeInBytes, vertices);
}
protected string GetShaderCompileInfo(int shaderHandle)
{
lastShaderLog = GLHelper.GetShaderInfoLog((uint)shaderHandle);
return(lastShaderLog);
}
