SKImage ToImage(Texture2D texture)
{
// Taken form VL.Video.MediaFoundation
const int GL_TEXTURE_BINDING_2D = 0x8069;
var eglContext = renderContext.EglContext;
var eglImage = eglContext.CreateImageFromD3D11Texture(texture.NativePointer);
uint textureId = 0;
NativeGles.glGenTextures(1, ref textureId);
// We need to restore the currently bound texture (https://github.com/devvvvs/vvvv/issues/5925)
NativeGles.glGetIntegerv(GL_TEXTURE_BINDING_2D, out var currentTextureId);
NativeGles.glBindTexture(NativeGles.GL_TEXTURE_2D, textureId);
NativeGles.glEGLImageTargetTexture2DOES(NativeGles.GL_TEXTURE_2D, eglImage);
NativeGles.glBindTexture(NativeGles.GL_TEXTURE_2D, (uint)currentTextureId);
var description = texture.Description;
var colorType = GetColorType(description.Format);
var glInfo = new GRGlTextureInfo(
id: textureId,
target: NativeGles.GL_TEXTURE_2D,
format: colorType.ToGlSizedFormat());
var backendTexture = new GRBackendTexture(
width: description.Width,
height: description.Height,
mipmapped: false,
glInfo: glInfo);
var image = SKImage.FromTexture(
renderContext.SkiaContext,
backendTexture,
GRSurfaceOrigin.BottomLeft,
colorType,
SKAlphaType.Premul,
colorspace: SKColorSpace.CreateSrgb(),
releaseProc: _ =>
{
renderContext.MakeCurrent();
backendTexture.Dispose();
NativeGles.glDeleteTextures(1, ref textureId);
eglImage.Dispose();
texture.Dispose();
});
return(image);
}
