Skip to content

Commit

Permalink
Adds A8, BGR24, BGBR32, RGB565, ARGB4444 and RGBA4444 formats
Browse files Browse the repository at this point in the history
  • Loading branch information
@sarbian
sarbian committed Nov 13, 2014
1 parent 51df49b commit fc3ae26
Showing 1 changed file with 68 additions and 30 deletions.
98 changes: 68 additions & 30 deletions DatabaseLoaderTexture_DDS.cs
View file
Expand Up @@ -12,15 +12,21 @@ public class DatabaseLoaderTexture_DDS : DatabaseLoader<GameDatabase.TextureInfo
{
private const uint DDSD_MIPMAPCOUNT_BIT = 0x00020000;
private const uint DDPF_ALPHAPIXELS = 0x00000001;
private const uint DDPF_ALPHA = 0x00000002;
private const uint DDPF_FOURCC = 0x00000004;
private const uint DDPF_RGB = 0x00000040;
private const uint DDPF_YUV = 0x00000200;
private const uint DDPF_LUMINANCE = 0x00020000;
private const uint DDPF_NORMAL = 0x80000000;

private static string error;

public override IEnumerator Load(UrlDir.UrlFile urlFile, FileInfo file)
{
obj = LoadDDS(urlFile);
bool asNormal = urlFile.name.EndsWith("NRM");
bool keepReadable = urlFile.name.EndsWith("READ");

obj = LoadDDS(urlFile.fullPath, keepReadable, asNormal);
successful = obj != null;

if (!successful)
Expand All @@ -33,14 +39,15 @@ public override IEnumerator Load(UrlDir.UrlFile urlFile, FileInfo file)
// http://answers.unity3d.com/questions/555984/can-you-load-dds-textures-during-runtime.html#answer-707772
// http://msdn.microsoft.com/en-us/library/bb943992.aspx
// http://msdn.microsoft.com/en-us/library/windows/desktop/bb205578(v=vs.85).aspx
public static GameDatabase.TextureInfo LoadDDS(UrlDir.UrlFile urlFile)
// mipmapBias limits the number of mipmap when > 0
public static GameDatabase.TextureInfo LoadDDS(string path, bool keepReadable = false, bool asNormal = false, int mipmapBias = -1)
{
if (!File.Exists(urlFile.fullPath))
if (!File.Exists(path))
{
error = "File does not exist";
return null;
}
using (BinaryReader reader = new BinaryReader(File.Open(urlFile.fullPath, FileMode.Open, FileAccess.Read)))
using (BinaryReader reader = new BinaryReader(File.Open(path, FileMode.Open, FileAccess.Read)))
{
byte[] dwMagic = reader.ReadBytes(4);

Expand Down Expand Up @@ -79,16 +86,16 @@ public static GameDatabase.TextureInfo LoadDDS(UrlDir.UrlFile urlFile)
}

// DDS_PIXELFORMAT
int dds_pxlf_dwSize = (int)reader.ReadUInt32();
int dds_pxlf_dwFlags = (int)reader.ReadUInt32();
uint dds_pxlf_dwSize = reader.ReadUInt32();
uint dds_pxlf_dwFlags = reader.ReadUInt32();
byte[] dds_pxlf_dwFourCC = reader.ReadBytes(4);
string fourCC = Encoding.ASCII.GetString(dds_pxlf_dwFourCC);
int dds_pxlf_dwRGBBitCount = (int)reader.ReadUInt32();
int pixelSize = dds_pxlf_dwRGBBitCount / 8;
int dds_pxlf_dwRBitMask = (int)reader.ReadUInt32();
int dds_pxlf_dwGBitMask = (int)reader.ReadUInt32();
int dds_pxlf_dwBBitMask = (int)reader.ReadUInt32();
int dds_pxlf_dwABitMask = (int)reader.ReadUInt32();
uint dds_pxlf_dwRGBBitCount = reader.ReadUInt32();
uint pixelSize = dds_pxlf_dwRGBBitCount / 8;
uint dds_pxlf_dwRBitMask = reader.ReadUInt32();
uint dds_pxlf_dwGBitMask = reader.ReadUInt32();
uint dds_pxlf_dwBBitMask = reader.ReadUInt32();
uint dds_pxlf_dwABitMask = reader.ReadUInt32();

int dwCaps = (int)reader.ReadUInt32();
int dwCaps2 = (int)reader.ReadUInt32();
Expand All @@ -98,32 +105,61 @@ public static GameDatabase.TextureInfo LoadDDS(UrlDir.UrlFile urlFile)

TextureFormat textureFormat = TextureFormat.ARGB32;
bool isCompressed = false;
bool isNormalMap = (dds_pxlf_dwFlags & DDPF_NORMAL) != 0 || urlFile.name.EndsWith("NRM");

if ((dds_pxlf_dwFlags & DDPF_FOURCC) != 0)
bool isNormalMap = (dds_pxlf_dwFlags & DDPF_NORMAL) != 0 || asNormal;

bool alpha = (dds_pxlf_dwFlags & DDPF_ALPHA) != 0;
bool fourcc = (dds_pxlf_dwFlags & DDPF_FOURCC) != 0;
bool rgb = (dds_pxlf_dwFlags & DDPF_RGB) != 0;
bool alphapixel = (dds_pxlf_dwFlags & DDPF_ALPHAPIXELS) != 0;
bool luminance = (dds_pxlf_dwFlags & DDPF_LUMINANCE) != 0;
bool rgb888 = dds_pxlf_dwRBitMask == 0x000000ff && dds_pxlf_dwGBitMask == 0x0000ff00 && dds_pxlf_dwBBitMask == 0x00ff0000;
bool bgr888 = dds_pxlf_dwRBitMask == 0x00ff0000 && dds_pxlf_dwGBitMask == 0x0000ff00 && dds_pxlf_dwBBitMask == 0x000000ff;
bool rgb565 = dds_pxlf_dwRBitMask == 0x0000F800 && dds_pxlf_dwGBitMask == 0x000007E0 && dds_pxlf_dwBBitMask == 0x0000001F;
bool argb4444 = dds_pxlf_dwABitMask == 0x0000f000 && dds_pxlf_dwRBitMask == 0x00000f00 && dds_pxlf_dwGBitMask == 0x000000f0 && dds_pxlf_dwBBitMask == 0x0000000f;
bool rbga4444 = dds_pxlf_dwABitMask == 0x0000000f && dds_pxlf_dwRBitMask == 0x0000f000 && dds_pxlf_dwGBitMask == 0x000000f0 && dds_pxlf_dwBBitMask == 0x00000f00;
if (fourcc)
{
// Texture dos not contain RGB data, check FourCC for format
isCompressed = true;

if (fourCCEquals(dds_pxlf_dwFourCC, "DXT1"))
{
textureFormat = TextureFormat.DXT1;
}
else if (fourCCEquals(dds_pxlf_dwFourCC, "DXT5"))
{
textureFormat = TextureFormat.DXT5;
}
if (fourCCEquals(dds_pxlf_dwFourCC, "DXT1"))
{
textureFormat = TextureFormat.DXT1;
}
else if (fourCCEquals(dds_pxlf_dwFourCC, "DXT5"))
{
textureFormat = TextureFormat.DXT5;
}
else if ((dds_pxlf_dwFlags & DDPF_RGB) != 0)
}
else if (rgb && (rgb888 || bgr888))
{
// RGB or RGBA format
textureFormat = (dds_pxlf_dwFlags & DDPF_ALPHAPIXELS) != 0
textureFormat = alphapixel
? TextureFormat.RGBA32
: TextureFormat.RGB24;
}
else if (rgb && rgb565)
{
// Nvidia texconv B5G6R5_UNORM
textureFormat = TextureFormat.RGB565;
}
else if (rgb && alphapixel && argb4444)
{
// Nvidia texconv B4G4R4A4_UNORM
textureFormat = TextureFormat.ARGB4444;
}
else if (rgb && alphapixel && rbga4444)
{
textureFormat = TextureFormat.RGBA4444;
}
else if (!rgb && alpha != luminance)
{
// A8 format or Luminance 8
textureFormat = TextureFormat.Alpha8;
}
else
{
error = "Only DXT1, DXT5, RGB24 and RGBA32 are supported";
error = "Only DXT1, DXT5, A8, RGB24, BGR24, RGBA32, BGBR32, RGB565, ARGB4444 and RGBA4444 are supported";
return null;
}

Expand All @@ -132,6 +168,8 @@ public static GameDatabase.TextureInfo LoadDDS(UrlDir.UrlFile urlFile)
if (Settings.MipmapBias != 0 || Settings.NormalMipmapBias != 0)
{
int bias = isNormalMap ? Settings.NormalMipmapBias : Settings.MipmapBias;
if (mipmapBias > 0)
bias = mipmapBias;
int blockSize = textureFormat == TextureFormat.DXT1 ? 8 : 16;
int levels = Math.Min(bias, dwMipMapCount - 1);

Expand All @@ -151,9 +189,9 @@ public static GameDatabase.TextureInfo LoadDDS(UrlDir.UrlFile urlFile)
byte[] dxtBytes = reader.ReadBytes((int)dxtBytesLength);

// Swap red and blue.
if (!isCompressed)
if (bgr888)
{
for (int i = 0; i < dxtBytes.Length; i += pixelSize)
for (uint i = 0; i < dxtBytes.Length; i += pixelSize)
{
byte b = dxtBytes[i + 0];
byte r = dxtBytes[i + 2];
Expand All @@ -165,9 +203,9 @@ public static GameDatabase.TextureInfo LoadDDS(UrlDir.UrlFile urlFile)

Texture2D texture = new Texture2D(dwWidth, dwHeight, textureFormat, dwMipMapCount > 1);
texture.LoadRawTextureData(dxtBytes);
texture.Apply(false, true);
texture.Apply(false, !keepReadable);

return new GameDatabase.TextureInfo(texture, isNormalMap, false, isCompressed);
return new GameDatabase.TextureInfo(texture, isNormalMap, keepReadable, isCompressed);
}
}

Expand Down

0 comments on commit fc3ae26

Please sign in to comment.