public void LoadImage(STGenericTexture texture, ImageParameters parameters)
{
if (parameters == null)
{
parameters = new ImageParameters();
}
Bind();
var format = texture.Platform.OutputFormat;
var width = CalculateMipDimension((int)texture.Width, 0);
var height = CalculateMipDimension((int)texture.Height, 0);
int numSurfaces = 1;
if (Target == TextureTarget.Texture3D || Target == TextureTarget.Texture2DArray)
{
numSurfaces = (int)Math.Max(1, texture.Depth);
}
if (Target == TextureTarget.TextureCubeMap || Target == TextureTarget.TextureCubeMapArray)
{
numSurfaces = (int)Math.Max(1, texture.ArrayCount);
}
for (int i = 0; i < numSurfaces; i++)
{
var surface = texture.GetDeswizzledSurface(i, 0);
int depth = 1;
bool loadAsBitmap = !IsPower2(width, height) && texture.IsBCNCompressed() && false;
if (texture.IsASTC() || parameters.FlipY)
{
loadAsBitmap = true;
}
int numMips = 1;
for (int mipLevel = 0; mipLevel < numMips; mipLevel++)
{
if (loadAsBitmap || parameters.UseSoftwareDecoder)
{
var rgbaData = texture.GetDecodedSurface(i, mipLevel);
if (parameters.FlipY)
{
rgbaData = FlipVertical(width, height, rgbaData);
}
var formatInfo = GLFormatHelper.ConvertPixelFormat(TexFormat.RGBA8_UNORM);
if (texture.IsSRGB)
{
formatInfo.InternalFormat = PixelInternalFormat.Srgb8Alpha8;
}
GLTextureDataLoader.LoadImage(Target, width, height, depth, formatInfo, rgbaData, mipLevel);
}
else if (texture.IsBCNCompressed())
{
var internalFormat = GLFormatHelper.ConvertCompressedFormat(format, true);
GLTextureDataLoader.LoadCompressedImage(Target, width, height, depth, internalFormat, surface, mipLevel);
}
else
{
var formatInfo = GLFormatHelper.ConvertPixelFormat(format);
GLTextureDataLoader.LoadImage(Target, width, height, depth, formatInfo, surface, mipLevel);
}
}
if (texture.MipCount > 1 && texture.Platform.OutputFormat != TexFormat.BC5_SNORM)
{
GL.GenerateMipmap((GenerateMipmapTarget)Target);
}
else
{
//Set level to base only
GL.TexParameter(Target, TextureParameterName.TextureBaseLevel, 0);
GL.TexParameter(Target, TextureParameterName.TextureMaxLevel, 0);
}
}
Unbind();
}
