Exemplo n.º 1
0
        internal Texture2D(GraphicsDevice graphicsDevice, int width, int height, TextureFormat format, bool generateMipMaps, ResourceUsage usage = ResourceUsage.Normal, DataRectangle data = new DataRectangle())
            : base(graphicsDevice, new System.Diagnostics.StackTrace(1))
        {
            if (width <= 0)
            {
                throw new ArgumentOutOfRangeException("width", "Width must be positive.");
            }
            if (height <= 0)
            {
                throw new ArgumentOutOfRangeException("height", "Height must be positive.");
            }
            if (format == TextureFormat.Unknown)
            {
                throw new ArgumentException("Format must not be TextureFormat.Unknown.", "format");
            }
            if (width > graphicsDevice.OpenGLCapabilities.MaxTextureSize)
            {
                throw new PlatformNotSupportedException("width exceeds the maximum texture size");
            }
            if (height > graphicsDevice.OpenGLCapabilities.MaxTextureSize)
            {
                throw new PlatformNotSupportedException("height exceeds the maximum texture size");
            }
            if ((width % 2 != 0 || height % 2 != 0) && !graphicsDevice.OpenGLCapabilities.SupportsNonPowerOf2Textures)
            {
                throw new PlatformNotSupportedException("Driver doesn't support non power of two textures");
            }
            if (usage == ResourceUsage.Immutable && (data.IsNull))
            {
                throw new ArgumentException("data", "Immutable textures must be initialized with data.");
            }

            this.Width     = width;
            this.Height    = height;
            this.MipLevels = generateMipMaps ? OpenGL4.GraphicsDevice.MipLevels(width, height) : 1;
            this.Format    = format;
            this.Usage     = usage;
            var internalFormat = EnumConverter.Convert(Format);

            this.TextureID = GL.GenTexture();

            if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.None)
            {
                graphicsDevice.BindManager.SetTexture(this, 0);
                GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMaxLevel, this.MipLevels - 1);

                if (graphicsDevice.OpenGLCapabilities.SupportsTextureStorage && graphicsDevice.OpenGLCapabilities.OpenGLVersion > new Version(4, 2) && !TextureFormatHelper.IsCompressed(Format))
                {
                    GL.TexStorage2D(TextureTarget2d.Texture2D, MipLevels, EnumConverter.ConvertSizedInternalFormat(Format), Width, Height);
                }
                else
                {
                    int    size = 0;
                    IntPtr ptr  = IntPtr.Zero;
                    if (!data.IsNull)
                    {
                        size = data.Size;
                        ptr  = data.Pointer;
                    }

                    if (!TextureFormatHelper.IsCompressed(Format))
                    {
                        GL.TexImage2D(TextureTarget.Texture2D, 0, internalFormat.Item1, width, height, 0, internalFormat.Item2, internalFormat.Item3, ptr);
                    }
                    else if (ptr != IntPtr.Zero)
                    {
                        GL.CompressedTexImage2D(TextureTarget.Texture2D, 0, internalFormat.Item1, width, height, 0, size, ptr);
                        isInitialized = true;
                    }
                }
            }
            else if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.Extension)
            {
                OpenTK.Graphics.OpenGL.GL.Ext.TextureParameter(TextureID, OpenTK.Graphics.OpenGL.TextureTarget.Texture2D, OpenTK.Graphics.OpenGL.TextureParameterName.TextureMaxLevel, this.MipLevels - 1);
                if (graphicsDevice.OpenGLCapabilities.SupportsTextureStorage && graphicsDevice.OpenGLCapabilities.OpenGLVersion > new Version(4, 2) && !TextureFormatHelper.IsCompressed(Format))
                {
                    Ext.TextureStorage2D(TextureID, (OpenTK.Graphics.OpenGL.ExtDirectStateAccess)TextureTarget2d.Texture2D, MipLevels, (OpenTK.Graphics.OpenGL.ExtDirectStateAccess)EnumConverter.ConvertSizedInternalFormat(Format), Width, Height);
                }
                else
                {
                    int    size = 0;
                    IntPtr ptr  = IntPtr.Zero;
                    if (!data.IsNull)
                    {
                        size = data.Size;
                        ptr  = data.Pointer;
                    }

                    if (!TextureFormatHelper.IsCompressed(Format))
                    {
                        Ext.TextureImage2D(TextureID, (OpenTK.Graphics.OpenGL.TextureTarget)TextureTarget.Texture2D, 0, (int)internalFormat.Item1, width, height, 0, (OpenTK.Graphics.OpenGL.PixelFormat)internalFormat.Item2, (OpenTK.Graphics.OpenGL.PixelType)internalFormat.Item3, ptr);
                    }
                    else if (ptr != IntPtr.Zero)
                    {
                        Ext.CompressedTextureImage2D(TextureID, (OpenTK.Graphics.OpenGL.TextureTarget)TextureTarget.Texture2D, 0, (OpenTK.Graphics.OpenGL.ExtDirectStateAccess)internalFormat.Item1, width, height, 0, size, ptr);
                        isInitialized = true;
                    }
                }
            }
            else if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.Core)
            {
            }

            graphicsDevice.CheckGLError("Texture2D Constructor");
        }
Exemplo n.º 2
0
        internal Texture2D(GraphicsDevice graphicsDevice, int width, int height, TextureFormat format, int mipLevels, ResourceUsage usage = ResourceUsage.Normal, params DataRectangle[] data)
            : base(graphicsDevice, new System.Diagnostics.StackTrace(1))
        {
            if (width <= 0)
            {
                throw new ArgumentOutOfRangeException("width", "Width must be positive.");
            }
            if (height <= 0)
            {
                throw new ArgumentOutOfRangeException("height", "Height must be positive.");
            }
            if (mipLevels < 0)
            {
                throw new ArgumentOutOfRangeException("mipLevels", "MipLevels must not be negative.");
            }
            if (format == TextureFormat.Unknown)
            {
                throw new ArgumentException("Format must not be TextureFormat.Unknown.", "format");
            }
            if (width > graphicsDevice.OpenGLCapabilities.MaxTextureSize)
            {
                throw new PlatformNotSupportedException("width exceeds the maximum texture size");
            }
            if (height > graphicsDevice.OpenGLCapabilities.MaxTextureSize)
            {
                throw new PlatformNotSupportedException("height exceeds the maximum texture size");
            }
            if (usage == ResourceUsage.Immutable && (data == null || data.Length == 0))
            {
                throw new ArgumentException("data", "Immutable textures must be initialized with data.");
            }
            if (data != null && data.Length != 0 && data.Length < mipLevels)
            {
                throw new ArgumentOutOfRangeException("data", data.Length, string.Format("data Lenght is too small for specified mipLevels, expected: {0}", mipLevels));
            }

            this.Width  = width;
            this.Height = height;
            this.Format = format;
            this.Usage  = usage;
            var internalFormat = EnumConverter.Convert(Format);

            this.MipLevels = mipLevels > 0 ? mipLevels : 1;

            this.TextureID = GL.GenTexture();
            if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.None)
            {
                graphicsDevice.BindManager.SetTexture(this, 0);
                GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMaxLevel, this.MipLevels - 1);

                if (graphicsDevice.OpenGLCapabilities.SupportsTextureStorage && graphicsDevice.OpenGLCapabilities.OpenGLVersion > new Version(4, 2) && !TextureFormatHelper.IsCompressed(Format))
                {
                    GL.TexStorage2D(TextureTarget2d.Texture2D, MipLevels, EnumConverter.ConvertSizedInternalFormat(Format), Width, Height);
                }
                else
                {
                    int    size = 0;
                    IntPtr ptr  = IntPtr.Zero;
                    if (data != null && data.Length > 0)
                    {
                        size = data[0].Size;
                        ptr  = data[0].Pointer;
                    }

                    if (!TextureFormatHelper.IsCompressed(Format))
                    {
                        GL.TexImage2D(TextureTarget.Texture2D, 0, internalFormat.Item1, width, height, 0, internalFormat.Item2, internalFormat.Item3, ptr);
                    }
                    else if (ptr != IntPtr.Zero)
                    {
                        GL.CompressedTexImage2D(TextureTarget.Texture2D, 0, internalFormat.Item1, width, height, 0, size, ptr);
                    }
                }
            }
            else if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.Extension)
            {
                OpenTK.Graphics.OpenGL.GL.Ext.TextureParameter(TextureID, OpenTK.Graphics.OpenGL.TextureTarget.Texture2D, OpenTK.Graphics.OpenGL.TextureParameterName.TextureMaxLevel, this.MipLevels - 1);
                if (graphicsDevice.OpenGLCapabilities.SupportsTextureStorage && graphicsDevice.OpenGLCapabilities.OpenGLVersion > new Version(4, 2) && !TextureFormatHelper.IsCompressed(Format))
                {
                    Ext.TextureStorage2D(TextureID, (OpenTK.Graphics.OpenGL.ExtDirectStateAccess)TextureTarget2d.Texture2D, MipLevels, (OpenTK.Graphics.OpenGL.ExtDirectStateAccess)EnumConverter.ConvertSizedInternalFormat(Format), Width, Height);
                }
                else
                {
                    int    size = 0;
                    IntPtr ptr  = IntPtr.Zero;
                    if (data != null && data.Length > 0)
                    {
                        size = data[0].Size;
                        ptr  = data[0].Pointer;
                    }

                    if (!TextureFormatHelper.IsCompressed(Format))
                    {
                        Ext.TextureImage2D(TextureID, (OpenTK.Graphics.OpenGL.TextureTarget)TextureTarget.Texture2D, 0, (int)internalFormat.Item1, width, height, 0, (OpenTK.Graphics.OpenGL.PixelFormat)internalFormat.Item2, (OpenTK.Graphics.OpenGL.PixelType)internalFormat.Item3, ptr);
                    }
                    else if (ptr != IntPtr.Zero)
                    {
                        Ext.CompressedTextureImage2D(TextureID, (OpenTK.Graphics.OpenGL.TextureTarget)TextureTarget.Texture2D, 0, (OpenTK.Graphics.OpenGL.ExtDirectStateAccess)internalFormat.Item1, width, height, 0, size, ptr);
                        isInitialized = true;
                    }
                }
            }
            else if (graphicsDevice.OpenGLCapabilities.DirectStateAccess == DirectStateAccess.Core)
            {
            }

            graphicsDevice.CheckGLError("Texture2D Constructor");

            if (data != null && data.Length > 1)
            {
                for (int i = 1; i < data.Length; i++)
                {
                    SetData(data[i], i);
                }
            }
        }