public GLBufferDynamic(GLBufferSettings settings, int elementSize, int startCapacity = 8192)
{
Settings = settings;
BufferSize = startCapacity;
ElementSize = elementSize;
BufferId = GL.GenBuffer();
Bind();
GL.BufferData(Settings.Target, BufferSize, IntPtr.Zero, Settings.Hint);
Unbind();
}
/// <summary>
/// Initializes a new instance of the <see cref="nginz.GLBuffer{T}"/> class.
/// </summary>
/// <param name="settings">The buffer settings.</param>
/// <param name="buffer">The buffer initialization array.</param>
public GLBuffer(GLBufferSettings settings, IList <T> buffer)
{
// Set the settings
Settings = settings;
// Set the buffer
Buffer = buffer;
// Calculate the buffer size
BufferSize = Marshal.SizeOf(buffer [0]) * Buffer.Count;
// Generate the buffer
BufferId = GL.GenBuffer();
// Bind the buffer
Bind();
// Set the buffer data
GL.BufferData(Settings.Target, BufferSize, Buffer.ToArray(), Settings.Hint);
// Unbind the data
Unbind();
}
/// <summary>
/// Initializes a new instance of the <see cref="nginz.SpriteBatch"/> class.
/// </summary>
/// <param name = "game">The game.</param>
/// <param name="shader">Shader.</param>
public SpriteBatch(Game game, ShaderProgram shader = null)
{
// Set the game
Game = game;
// Compile predefined shaders if no shader program is given
if (shader == null) {
var vertShader = new VertexShader (vert_source);
var fragShader = new FragmentShader (frag_source);
Program = new ShaderProgram (vertShader, fragShader);
Program.Link ();
} else
Program = shader;
// Create the optimal buffer settings
var settings = new GLBufferSettings {
AttribSize = 0,
Hint = BufferUsageHint.DynamicDraw,
Normalized = false,
Offset = 0,
Target = BufferTarget.ArrayBuffer,
Type = VertexAttribPointerType.Float
};
// Create temp variables for indices
int indPtr = 0;
var tempIndices = new uint[MAX_INDICES];
// Fill temporary indices
for (uint i = 0; i < MAX_VERTICES; i += 4) {
// Triangle 1
tempIndices [indPtr++] = i;
tempIndices [indPtr++] = i + 1;
tempIndices [indPtr++] = i + 2;
// Triangle 2
tempIndices [indPtr++] = i + 1;
tempIndices [indPtr++] = i + 3;
tempIndices [indPtr++] = i + 2;
}
// Set camera
InternalCamera = new Camera (60f, game.Resolution, 0, 16, type: ProjectionType.Orthographic);
// Set current texture
CurrentTexture = Texture2D.Dot;
// Generate array buffer object
abo = GL.GenVertexArray ();
// Create vertex buffer object
vbo = new GLBufferDynamic<Vertex2D> (settings, Vertex2D.Size, MAX_VERTICES);
// Create index buffer object
ibo = new GLBuffer<uint> (GLBufferSettings.DynamicIndices, tempIndices);
// Initialize vertices
Vertices = new Vertex2D[MAX_VERTICES];
framebuffer = new Framebuffer (FramebufferTarget.Framebuffer, Game.Resolution.Width, game.Resolution.Height)
.AttachTexture (FboAttachment.DiffuseAttachment, DrawBuffersEnum.ColorAttachment0, PixelInternalFormat.Rgb, PixelFormat.Rgb, PixelType.UnsignedByte, InterpolationMode.Linear);
}
/// <summary>
/// Initializes a new instance of the <see cref="nginz.SpriteBatch"/> class.
/// </summary>
/// <param name = "game">The game.</param>
/// <param name="shader">Shader.</param>
public SpriteBatch(Game game, ShaderProgram shader = null)
{
// Set the game
Game = game;
// Compile predefined shaders if no shader program is given
if (shader == null)
{
var vertShader = new VertexShader(vert_source);
var fragShader = new FragmentShader(frag_source);
Program = new ShaderProgram(vertShader, fragShader);
Program.Link();
}
else
{
Program = shader;
}
// Create the optimal buffer settings
var settings = new GLBufferSettings {
AttribSize = 0,
Hint = BufferUsageHint.DynamicDraw,
Normalized = false,
Offset = 0,
Target = BufferTarget.ArrayBuffer,
Type = VertexAttribPointerType.Float
};
// Create temp variables for indices
int indPtr = 0;
var tempIndices = new uint[MAX_INDICES];
// Fill temporary indices
for (uint i = 0; i < MAX_VERTICES; i += 4)
{
// Triangle 1
tempIndices [indPtr++] = i;
tempIndices [indPtr++] = i + 1;
tempIndices [indPtr++] = i + 2;
// Triangle 2
tempIndices [indPtr++] = i + 1;
tempIndices [indPtr++] = i + 3;
tempIndices [indPtr++] = i + 2;
}
// Set camera
InternalCamera = new Camera(60f, game.Resolution, 0, 16, type: ProjectionType.Orthographic);
// Set current texture
CurrentTexture = Texture2D.Dot;
// Generate array buffer object
abo = GL.GenVertexArray();
// Create vertex buffer object
vbo = new GLBufferDynamic <Vertex2D> (settings, Vertex2D.Size, MAX_VERTICES);
// Create index buffer object
ibo = new GLBuffer <uint> (GLBufferSettings.DynamicIndices, tempIndices);
// Initialize vertices
Vertices = new Vertex2D[MAX_VERTICES];
framebuffer = new Framebuffer(FramebufferTarget.Framebuffer, Game.Resolution.Width, game.Resolution.Height)
.AttachTexture(FboAttachment.DiffuseAttachment, DrawBuffersEnum.ColorAttachment0, PixelInternalFormat.Rgb, PixelFormat.Rgb, PixelType.UnsignedByte, InterpolationMode.Linear);
}
public static GLBuffer<uint> ToGLBuffer(this IList<uint> @this, GLBufferSettings? settings = null)
{
return new GLBuffer<uint> (settings ?? GLBufferSettings.StaticIndices, @this);
}
public static GLBuffer<Vector2> ToGLBuffer(this IList<Vector2> @this, GLBufferSettings? settings = null)
{
return new GLBuffer<Vector2> (settings ?? GLBufferSettings.StaticDraw2FloatArray, @this);
}