public ForwardPipeline(MasterRenderer renderer)
: base(renderer)
{
GLError.Begin();
forwardShader = new WorldShader();
shadowShader = new ShadowShader();
shadowMap = new ShadowMap(GFXSettings.ShadowResolution, GFXSettings.ShadowResolution);
shadowCamera = new ShadowCamera();
ppBuffer = new PostProcessBuffer(ScreenWidth, ScreenHeight);
ppShader = new PostProcessShader();
skyRenderTarg = new TexRenderTarget(ScreenWidth, ScreenHeight);
screenshotRenderTarg = new TexRenderTarget(1, 1);
screenshotRenderTarg.Bind();
GL.ReadBuffer(ReadBufferMode.ColorAttachment0);
screenshotRenderTarg.Unbind();
ErrorCode err = GLError.End();
if (err != ErrorCode.NoError)
{
throw new Exception(string.Format("Failed to initialize forward pipeline. OpenGL Error: {0}", err));
}
}
public static void Disable(EnableCap cap)
{
if (states[cap])
{
if (CheckForErrors)
{
GLError.Begin();
}
states[cap] = false;
GL.Disable(cap);
if (CheckForErrors)
{
ErrorCode glError = GLError.End();
if (glError == ErrorCode.InvalidEnum)
{
throw new Exception(string.Format("Invalid glEnable Enum: {0}", cap));
}
else if (glError == ErrorCode.InvalidValue)
{
throw new Exception(string.Format("Invalid glEnable Value: {0}", cap));
}
}
}
}
protected BufferObject InitializeArrayBuffer(uint index, int components, VertexAttribPointerType type, bool normalized,
int stride, int offset, BufferUsageHint hint)
{
if (index < 0 || index >= ArrayBufferObjects.Length)
{
throw new IndexOutOfRangeException(
"Index must be within range of the number of array buffer objects for this vertex buffer!");
}
if (ArrayBufferObjects[index] != null)
{
throw new InvalidOperationException(
string.Format("ArrayBuffer {0} was already initialized for this vertex buffer!", index));
}
GLError.Begin();
BufferObject buffer = new BufferObject(BufferTarget.ArrayBuffer, hint);
buffer.Bind();
GL.VertexAttribPointer(index, components, type, normalized, stride, new IntPtr(offset));
GL.EnableVertexAttribArray(index);
ErrorCode err = GLError.End();
if (err != ErrorCode.NoError)
{
throw new Exception(string.Format("Failed to initialize array buffer: {0}", err));
}
ArrayBufferObjects[index] = buffer;
return(buffer);
}
public MasterRenderer(int screenWidth, int screenHeight, GraphicsOptions options = null)
{
Instance = this;
GFXSettings = options ?? new GraphicsOptions();
ScreenWidth = screenWidth;
ScreenHeight = screenHeight;
if (GLVersion == 0)
{
int major = GL.GetInteger(GetPName.MajorVersion);
int minor = GL.GetInteger(GetPName.MinorVersion);
GLVersion = major + minor * 0.1f;
//if (major < 4)
// throw new Exception(string.Format("OpenGL 4.0 or later is required to run this game. This machine is running: {0}", GLVersion));
if (major < 4)
{
DashCMD.WriteWarning("[OpenGL] OpenGL 4.0 or later is required to run this game properly!. This machine is running: {0}", GLVersion);
}
else
{
DashCMD.WriteLine("[OpenGL] Version: {0}", ConsoleColor.DarkGray, GLVersion);
}
}
GLError.Begin();
Camera camera = new Camera(this);
camera.MakeActive();
Lights = new LightList();
Texture.Blank = GLoader.LoadBlankTexture(Color.White);
Renderer3Ds = new Dictionary <Type, Renderer3D>();
Renderer2Ds = new Dictionary <Type, Renderer2D>();
Gui = new GuiRenderer(this);
Sprites = new SpriteRenderer(this);
Sky = new SkyboxRenderer(this);
AddRenderer(Gui);
AddRenderer(Sprites);
activePipeline = new ForwardPipeline(this);
StateManager.Enable(EnableCap.CullFace);
StateManager.Enable(EnableCap.DepthTest);
GL.CullFace(CullFaceMode.Back);
ErrorCode mInitError = GLError.End();
if (mInitError != ErrorCode.NoError)
{
throw new Exception(string.Format("Uncaught master renderer init opengl error: {0}", mInitError));
}
}
public ShadowMap(int width, int height)
{
Width = width;
Height = height;
GLError.Begin();
fbo = GL.GenFramebuffer();
depthTex = GL.GenTexture();
BindTex();
GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.DepthComponent, width, height, 0,
PixelFormat.DepthComponent, PixelType.Float, IntPtr.Zero);
GL.TexParameteri(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int)TextureMinFilter.Nearest);
GL.TexParameteri(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Nearest);
GL.TexParameteri(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToBorder);
GL.TexParameteri(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToBorder);
GL.TexParameterfv(TextureTarget.Texture2D, TextureParameterName.TextureBorderColor, new float[] { 1, 1, 1, 1 });
// Bind the FBO
Bind();
GL.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.DepthAttachment,
TextureTarget.Texture2D, depthTex, 0);
GL.DrawBuffer(DrawBufferMode.None);
GL.ReadBuffer(ReadBufferMode.None);
// Check for errors
FramebufferErrorCode ec = GL.CheckFramebufferStatus(FramebufferTarget.Framebuffer);
if (ec != FramebufferErrorCode.FramebufferComplete)
{
throw new GPUResourceException("Failed to create FBO. Reason: " + ec.ToString());
}
// Unbind
Unbind();
ErrorCode err = GLError.End();
if (err != ErrorCode.NoError)
{
throw new Exception(string.Format("Failed to initialize shadow map: OpenGL error: {0}", err));
}
}
public static Texture LoadTexture(string filePath,
TextureMinFilter minFilter = TextureMinFilter.Linear, TextureMagFilter magFilter = TextureMagFilter.Linear, bool keepPath = false)
{
// Get full path
string actualPath = keepPath ? filePath : GetContentRelativePath(filePath);
if (!File.Exists(actualPath))
{
throw new FileNotFoundException(string.Format("Could not find texture file \"{0}\"", actualPath), actualPath);
}
GLError.Begin();
// Generate bitmap and get it's data
Bitmap bitmap = new Bitmap(actualPath);
BitmapData texData = bitmap.LockBits(new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height),
ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppRgb);
// Create texture id and bind it
Texture texture = new Texture();
texture.Bind();
// Set the texture data, min mag, and mipmap lod
texture.SetData(texData.Width, texData.Height, PixelType.UnsignedByte,
OpenGL.PixelFormat.Bgra, texData.Scan0);
texture.GenerateMipmap();
texture.SetLODBias(-1);
texture.SetMinMag(minFilter, magFilter);
// Unbind the texture
texture.Unbind();
// Unlock the bitmap file
bitmap.UnlockBits(texData);
ErrorCode err = GLError.End();
if (err != ErrorCode.NoError)
{
throw new Exception(string.Format("Failed to load texture. OpenGL Error: {0}", err));
}
return(texture);
}
public PostProcessBuffer(int width, int height)
: base(width, height)
{
GLError.Begin();
// Bind the FBO
Bind();
// Create the textures
TextureParamPack texParams = new TextureParamPack(TextureMagFilter.Nearest, TextureMinFilter.Nearest, TextureWrapMode.ClampToEdge);
ColorTexture = new FramebufferTexture(width, height, texParams, FramebufferAttachment.ColorAttachment0,
PixelInternalFormat.Rgba16f, PixelFormat.Rgba, PixelType.HalfFloat);
// Create the depth buffer
depthBuffer = GL.GenRenderbuffer();
GL.BindRenderbuffer(RenderbufferTarget.Renderbuffer, depthBuffer);
GL.RenderbufferStorage(RenderbufferTarget.Renderbuffer, RenderbufferStorage.DepthComponent24, Width, Height);
GL.FramebufferRenderbuffer(FramebufferTarget.Framebuffer, FramebufferAttachment.DepthAttachment,
RenderbufferTarget.Renderbuffer, depthBuffer);
GL.BindRenderbuffer(RenderbufferTarget.Renderbuffer, 0);
// Set and enable the draw buffers
SetDrawBuffers(DrawBuffersEnum.ColorAttachment0);
EnableDrawBuffers();
// Check for errors
CheckForErrors();
// Unbind
Unbind();
ErrorCode err = GLError.End();
if (err != ErrorCode.NoError)
{
throw new Exception(string.Format("Failed to create PostProcessBuffer. OpenGL Error: {0}", err));
}
}
public void Run(float targetFPS)
{
TargetFrameRate = targetFPS;
if (!Glfw.Init())
{
throw new Exception("Failed to initialize glfw!");
}
try
{
// Setup the error callback
Glfw.SetErrorCallback(OnError);
// Configure the window settings
Glfw.WindowHint(WindowHint.Resizeable, startResizable ? 1 : 0);
Glfw.WindowHint(WindowHint.Samples, 0);
// Create the window
handle = Glfw.CreateWindow(startWidth, startHeight, title,
GlfwMonitorPtr.Null, GlfwWindowPtr.Null);
HasFocus = true;
// TODO: check if window was initialized correctly
// Set the gl context
Glfw.MakeContextCurrent(handle);
// Get the primary monitor
primaryMonitor = Glfw.GetMonitors()[0];
primaryMonitorVideoMode = Glfw.GetVideoMode(primaryMonitor);
Glfw.GetWindowSize(handle, out width, out height);
Center();
// Setup window events
Glfw.SetScrollCallback(handle, OnInputScroll);
Glfw.SetCursorPosCallback(handle, OnMouseMove);
Glfw.SetWindowSizeCallback(handle, OnSizeChanged);
Glfw.SetWindowFocusCallback(handle, OnWindowFocusChanged);
Glfw.SetKeyCallback(handle, OnInputKeyChanged);
Input.Initialize(this);
// Set defaults and load
SetVSync(false);
Renderer = new MasterRenderer(width, height, startOptions);
InitOpenAL();
GLError.Begin();
Load();
ErrorCode initError = GLError.End();
if (initError != ErrorCode.NoError)
{
throw new Exception(string.Format("Uncaught opengl initialization error! {0}", initError));
}
// Begin game loop
double lastTime = Glfw.GetTime();
while (!Glfw.WindowShouldClose(handle))
{
double now = Glfw.GetTime();
float dt = (float)(now - lastTime);
lastTime = now;
// Process current deltatime
HandleFPS(dt);
// Check for input events before we call Input.Begin
Glfw.PollEvents();
// Check for window size change.
// We only call the OnResized event here so that
// when a user is custom resizing it doesn't get invoked
// a thousand times.
if (lastDrawnWidth != width || lastDrawnHeight != height)
{
lastDrawnWidth = width;
lastDrawnHeight = height;
OnSafeResized();
}
// Update
Input.Begin();
Renderer.Update(dt);
Update(dt);
Input.End();
// Draw
Renderer.Prepare(dt);
Draw(dt);
Renderer.Render(dt);
// Check for any uncaught opengl exceptions
ErrorCode glError = GL.GetError();
if (glError != ErrorCode.NoError)
{
throw new Exception(string.Format("Uncaught OpenGL Error: {0}", glError));
}
// Draw the buffers
Glfw.SwapBuffers(handle);
if (!vsyncEnabled)
{
// Sleep to avoid cpu cycle burning
double startSleepNow = Glfw.GetTime();
double timeToWait = targetDeltaTime - (startSleepNow - now);
while (timeToWait > 0)
{
Thread.Sleep(0);
double sleepNow = Glfw.GetTime();
timeToWait -= (sleepNow - startSleepNow);
startSleepNow = sleepNow;
}
}
}
Unload();
}
finally
{
Glfw.DestroyWindow(handle);
}
}
