public OpenGLESTexture2D(
int mipLevels,
int width,
int height,
PixelFormat veldridFormat,
OpenTK.Graphics.ES30.PixelFormat pixelFormat,
PixelType pixelType)
: base(TextureTarget.Texture2D, width, height)
{
MipLevels = mipLevels;
_veldridFormat = veldridFormat;
_pixelFormat = pixelFormat;
_pixelType = pixelType;
_texComponentCount = OpenGLESFormats.MapTextureComponentCount(veldridFormat, pixelFormat == OpenTK.Graphics.ES30.PixelFormat.DepthComponent);
Bind();
for (int currentLevel = 0; currentLevel < mipLevels; currentLevel++)
{
// Set size, load empty data into texture
GL.TexImage2D(
TextureTarget2d.Texture2D,
currentLevel,
_texComponentCount,
width, height,
0, // border
_pixelFormat,
_pixelType,
IntPtr.Zero);
Utilities.CheckLastGLES3Error();
width = Math.Max(1, width / 2);
height = Math.Max(1, height / 2);
}
}
public OpenGLESCubemapTexture(
IntPtr pixelsFront,
IntPtr pixelsBack,
IntPtr pixelsLeft,
IntPtr pixelsRight,
IntPtr pixelsTop,
IntPtr pixelsBottom,
int width,
int height,
PixelFormat format)
: base(TextureTarget.TextureCubeMap, width, height)
{
_texComponentCount = OpenGLESFormats.MapTextureComponentCount(format, false);
_format = OpenGLESFormats.MapPixelFormat(format);
_type = OpenGLESFormats.MapPixelType(format);
Bind();
GL.TexParameter(TextureTarget.TextureCubeMap, TextureParameterName.TextureMagFilter, (int)TextureMagFilter.Linear);
Utilities.CheckLastGLES3Error();
GL.TexParameter(TextureTarget.TextureCubeMap, TextureParameterName.TextureMinFilter, (int)TextureMagFilter.Linear);
Utilities.CheckLastGLES3Error();
GL.TexParameter(TextureTarget.TextureCubeMap, TextureParameterName.TextureWrapS, (int)TextureWrapMode.ClampToEdge);
Utilities.CheckLastGLES3Error();
GL.TexParameter(TextureTarget.TextureCubeMap, TextureParameterName.TextureWrapT, (int)TextureWrapMode.ClampToEdge);
Utilities.CheckLastGLES3Error();
GL.TexParameter(TextureTarget.TextureCubeMap, TextureParameterName.TextureWrapR, (int)TextureWrapMode.ClampToEdge);
Utilities.CheckLastGLES3Error();
SetFacePixels(0, pixelsRight);
SetFacePixels(1, pixelsLeft);
SetFacePixels(2, pixelsTop);
SetFacePixels(3, pixelsBottom);
SetFacePixels(4, pixelsBack);
SetFacePixels(5, pixelsFront);
}
public Texture2D(int width, int height, PixelFormat pixelFormat, TextureComponentCount componentCount, TextureUnit slot)
{
Width = width;
Height = height;
PixelFormat = pixelFormat;
TextureSlot = slot;
ComponentCount = componentCount;
GLTexture = GL.GenTexture();
GLException.CheckError("Texture2D");
}
/// <summary>
/// Creates a custom texture from bytes and other data.
/// </summary>
/// <param name="data">The bytes to upload to OpenGL.</param>
/// <param name="width">The width of the texture.</param>
/// <param name="height">The height of the texture.</param>
/// <param name="componentCount">The texture's component count.</param>
/// <param name="format">The format of the bytes.</param>
/// <param name="textureMatrix">An additional matrix to multiply the texture matrix by.</param>
public Texture(byte[] data, int width, int height, TextureComponentCount componentCount, PixelFormat format, Matrix4?textureMatrix = null)
{
Name = "Custom Texture";
Size = new Vector2(width, height);
TextureMatrix = Matrix4.CreateOrthographicOffCenter(0, Size.X * 2, Size.Y * 2, 0, 0, 1);
if (textureMatrix != null)
{
TextureMatrix *= (Matrix4)textureMatrix;
}
CreateFromBytes(data, componentCount, format);
}
/// <summary>
/// Create a texture from bytes.
/// </summary>
/// <param name="data">The texture data.</param>
/// <param name="componentCount">The component count.</param>
/// <param name="format">The texture format.</param>
private void CreateFromBytes(byte[] data, TextureComponentCount componentCount, PixelFormat format)
{
Pointer = GL.GenTexture();
// Bind the texture.
Bind(0);
// Set scaling to pixel perfect.
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (float)All.Nearest);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (float)All.Nearest);
// Upload the texture.
GL.TexImage2D(TextureTarget2d.Texture2D, 0, componentCount, (int)Size.X, (int)Size.Y, 0, format, PixelType.UnsignedByte, data);
Helpers.CheckError("uploading texture");
}
public Texture2D(int width, int height, PixelFormat pixelFormat, TextureComponentCount componentCount, TextureUnit slot, IntPtr data) : this(width, height, pixelFormat, componentCount, slot)
{
Copy(data);
GLException.CheckError("Texture2D");
}
