private int GetImageSizeDefault()
{
var format = Platform.OutputFormat;
int totalSize = 0;
uint bpp = TextureFormatHelper.GetBytesPerPixel(format);
for (int arrayLevel = 0; arrayLevel < ArrayCount; arrayLevel++)
{
for (int mipLevel = 0; mipLevel < MipCount; mipLevel++)
{
uint width = (uint)Math.Max(1, Width >> mipLevel);
uint height = (uint)Math.Max(1, Height >> mipLevel);
uint size = width * height * bpp;
if (IsBCNCompressed())
{
size = ((width + 3) >> 2) * ((Height + 3) >> 2) * bpp;
if (size < bpp)
{
size = bpp;
}
}
totalSize += (int)size;
}
}
return(totalSize);
}
public static List <STGenericTexture.Surface> GetArrayFaces(DDS dds, uint Length, int DepthLevel = 0)
{
int Dx10Size = dds.IsDX10 ? 20 : 0;
using (FileReader reader = new FileReader(dds.FileInfo.FilePath)) {
reader.TemporarySeek((int)(dds.MainHeader.Size + Dx10Size), SeekOrigin.Begin);
var format = dds.Platform.OutputFormat;
var Surfaces = new List <STGenericTexture.Surface>();
uint formatSize = TextureFormatHelper.GetBytesPerPixel(format);
bool isBlock = TextureFormatHelper.IsBCNCompressed(format);
uint Offset = 0;
if (dds.Depth > 1 && dds.MipCount > 1)
{
var Surface = new STGenericTexture.Surface();
uint MipWidth = dds.Width, MipHeight = dds.Height;
for (int j = 0; j < dds.MipCount; ++j)
{
MipWidth = (uint)Math.Max(1, dds.Width >> j);
MipHeight = (uint)Math.Max(1, dds.Height >> j);
for (byte d = 0; d < dds.Depth; ++d)
{
uint size = (MipWidth * MipHeight); //Total pixels
if (isBlock)
{
size = ((MipWidth + 3) >> 2) * ((MipHeight + 3) >> 2) * formatSize;
if (size < formatSize)
{
size = formatSize;
}
}
else
{
size = (uint)(size * (TextureFormatHelper.GetBytesPerPixel(format))); //Bytes per pixel
}
//Only add mips to the depth level needed
if (d == DepthLevel)
{
Surface.mipmaps.Add(reader.getSection((int)Offset, (int)size));
}
Offset += size;
//Add the current depth level and only once
if (d == DepthLevel && j == 0)
{
Surfaces.Add(Surface);
}
}
}
}
else
{
for (byte d = 0; d < dds.Depth; ++d)
{
for (byte i = 0; i < Length; ++i)
{
var Surface = new STGenericTexture.Surface();
uint MipWidth = dds.Width, MipHeight = dds.Height;
for (int j = 0; j < dds.MipCount; ++j)
{
MipWidth = (uint)Math.Max(1, dds.Width >> j);
MipHeight = (uint)Math.Max(1, dds.Height >> j);
uint size = (MipWidth * MipHeight); //Total pixels
if (isBlock)
{
size = ((MipWidth + 3) >> 2) * ((MipHeight + 3) >> 2) * formatSize;
if (size < formatSize)
{
size = formatSize;
}
}
else
{
size = (uint)(size * (TextureFormatHelper.GetBytesPerPixel(format))); //Bytes per pixel
}
Surface.mipmaps.Add(reader.getSection((int)Offset, (int)size));
Offset += size;
}
if (d == DepthLevel)
{
Surfaces.Add(Surface);
}
}
}
}
return(Surfaces);
}
}
public uint GetBytesPerPixel()
{
var format = Platform.OutputFormat;
return(TextureFormatHelper.GetBytesPerPixel(format));
}
public void SetFlags(TexFormat format, bool isDX10, bool isCubemap)
{
var dxgiFormat = (DXGI_FORMAT)format;
MainHeader.Flags = (uint)(DDSD.CAPS | DDSD.HEIGHT | DDSD.WIDTH | DDSD.PIXELFORMAT | DDSD.MIPMAPCOUNT | DDSD.LINEARSIZE);
PfHeader.Caps1 = (uint)DDSCAPS.TEXTURE;
if (MainHeader.MipCount > 1)
{
PfHeader.Caps1 |= (uint)(DDSCAPS.COMPLEX | DDSCAPS.MIPMAP);
}
if (isCubemap)
{
PfHeader.Caps2 |= (uint)(DDSCAPS2.CUBEMAP | DDSCAPS2.CUBEMAP_POSITIVEX | DDSCAPS2.CUBEMAP_NEGATIVEX |
DDSCAPS2.CUBEMAP_POSITIVEY | DDSCAPS2.CUBEMAP_NEGATIVEY |
DDSCAPS2.CUBEMAP_POSITIVEZ | DDSCAPS2.CUBEMAP_NEGATIVEZ);
}
if (isDX10)
{
PfHeader.Flags = (uint)DDPF.FOURCC;
PfHeader.FourCC = FOURCC_DX10;
Dx10Header.DxgiFormat = (uint)dxgiFormat;
if (isCubemap)
{
Dx10Header.ArrayCount = (ArrayCount / 6);
Dx10Header.MiscFlags1 = 0x4;
}
return;
}
var masks = DDS_RGBA.GetMasks(format);
PfHeader.RBitMask = masks[0];
PfHeader.GBitMask = masks[1];
PfHeader.BBitMask = masks[2];
PfHeader.ABitMask = masks[3];
PfHeader.RgbBitCount = 0x8 * TextureFormatHelper.GetBytesPerPixel(format);
PfHeader.Flags = (uint)(DDPF.RGB | DDPF.ALPHAPIXELS);
switch (format)
{
case TexFormat.RGBA8_UNORM:
case TexFormat.RGB8_SRGB:
break;
case TexFormat.RGB565_UNORM:
PfHeader.Flags = (uint)(DDPF.RGB | DDPF.ALPHAPIXELS);
break;
case TexFormat.BC1_SRGB:
case TexFormat.BC1_UNORM:
PfHeader.Flags = (uint)DDPF.FOURCC;
PfHeader.FourCC = FOURCC_DXT1;
break;
case TexFormat.BC2_SRGB:
case TexFormat.BC2_UNORM:
PfHeader.Flags = (uint)DDPF.FOURCC;
PfHeader.FourCC = FOURCC_DXT3;
break;
case TexFormat.BC3_SRGB:
case TexFormat.BC3_UNORM:
PfHeader.Flags = (uint)DDPF.FOURCC;
PfHeader.FourCC = FOURCC_DXT5;
break;
case TexFormat.BC4_UNORM:
PfHeader.Flags = (uint)DDPF.FOURCC;
PfHeader.FourCC = FOURCC_BC4U;
break;
case TexFormat.BC4_SNORM:
PfHeader.Flags = (uint)DDPF.FOURCC;
PfHeader.FourCC = FOURCC_BC4S;
break;
case TexFormat.BC5_UNORM:
PfHeader.Flags = (uint)DDPF.FOURCC;
PfHeader.FourCC = FOURCC_BC5U;
break;
case TexFormat.BC5_SNORM:
PfHeader.Flags = (uint)DDPF.FOURCC;
PfHeader.FourCC = FOURCC_BC5S;
break;
case TexFormat.BC6H_SF16:
case TexFormat.BC6H_UF16:
case TexFormat.BC7_UNORM:
case TexFormat.BC7_SRGB:
PfHeader.Flags = (uint)DDPF.FOURCC;
PfHeader.FourCC = FOURCC_DX10;
if (Dx10Header == null)
{
Dx10Header = new DX10Header();
}
Dx10Header.DxgiFormat = (uint)dxgiFormat;
break;
}
}
