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Extract WebP Codec

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This commit is contained in:
Crsky
2026-04-12 18:49:53 +08:00
parent 7ea9381367
commit 6cff1b96d4
4 changed files with 72 additions and 69 deletions
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37
ArcFormats/YuRis/ImageYDG.cs
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@@ -174,11 +174,11 @@ namespace GameRes.Formats.YuRis
byte[] DecodeWebP (byte[] data, out int width, out int height)
{
LibWebPLoader.Load ();
WebPCodec.Load ();
width = 0;
height = 0;
if (1 != WebPGetInfo (data, (UIntPtr)data.Length, ref width, ref height))
if (1 != WebPCodec.WebPGetInfo(data, (UIntPtr)data.Length, ref width, ref height))
throw new InvalidFormatException ("WebP image decoder failed.");
int stride = width * 4;
@@ -186,7 +186,7 @@ namespace GameRes.Formats.YuRis
var handle = GCHandle.Alloc (output, GCHandleType.Pinned);
try
{
if (IntPtr.Zero == WebPDecodeBGRAInto (data, (UIntPtr)data.Length,
if (IntPtr.Zero == WebPCodec.WebPDecodeBGRAInto (data, (UIntPtr)data.Length,
handle.AddrOfPinnedObject (), (UIntPtr)output.Length, stride))
{
throw new InvalidFormatException ("WebP image decoder failed.");
@@ -324,36 +324,5 @@ namespace GameRes.Formats.YuRis
return run;
}
}
[DllImport("libwebp.dll", EntryPoint = "WebPGetInfo", CallingConvention = CallingConvention.Cdecl)]
public static extern int WebPGetInfo([MarshalAs(UnmanagedType.LPArray)] byte[] data, UIntPtr data_size, ref int width, ref int height);
[DllImport("libwebp.dll", EntryPoint = "WebPDecodeBGRAInto", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr WebPDecodeBGRAInto([MarshalAs(UnmanagedType.LPArray)] byte[] data, UIntPtr data_size, IntPtr output_buffer, UIntPtr output_buffer_size, int output_stride);
}
internal static class LibWebPLoader
{
[DllImport("kernel32.dll", SetLastError = true, CallingConvention = CallingConvention.StdCall)]
static extern IntPtr LoadLibraryEx(string lpFileName, IntPtr hReservedNull, uint dwFlags);
static bool loaded = false;
const uint LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR = 0x00000100;
const uint LOAD_LIBRARY_SEARCH_SYSTEM32 = 0x00000800;
public static void Load()
{
if (loaded)
return;
var folder = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
folder = Path.Combine(folder, (IntPtr.Size == 4) ? "x86" : "x64");
var fullPath = Path.Combine(folder, "libwebp.dll");
fullPath = Path.GetFullPath(fullPath);
var handle = LoadLibraryEx(fullPath, IntPtr.Zero, LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR | LOAD_LIBRARY_SEARCH_SYSTEM32);
if (IntPtr.Zero == handle)
throw new Win32Exception(Marshal.GetLastWin32Error());
loaded = true;
}
}
}