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Extract WebP Codec

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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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1
ArcFormats/ArcFormats.csproj
View File

@@ -278,6 +278,7 @@
<Compile Include="VnMaker\AudioMP3.cs" />
<Compile Include="VnMaker\AudioOGG.cs" />
<Compile Include="VnMaker\ImagePNG.cs" />
<Compile Include="WebPCodec.cs" />
<Compile Include="Xuse\ArcNT.cs" />
<Compile Include="Xuse\ArcWVB.cs" />
<Compile Include="YuRis\ImageYDG.cs" />

39
ArcFormats/Artemis/ImageNekoPNG.cs
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@@ -65,10 +65,10 @@ namespace GameRes.Formats.Artemis
data[j] -= (byte)(0x77 * j);
var slice_width = 0;
var slice_height = 0;
if (1 != WebPGetInfo (data, (UIntPtr)data.Length, ref slice_width, ref slice_height))
if (1 != WebPCodec.WebPGetInfo(data, (UIntPtr)data.Length, ref slice_width, ref slice_height))
throw new InvalidFormatException("WebP image decoder failed.");
var slice_size = stride * slice_height;
if (IntPtr.Zero == WebPDecodeBGRAInto (data, (UIntPtr)data.Length, output, (UIntPtr)slice_size, stride))
if (IntPtr.Zero == WebPCodec.WebPDecodeBGRAInto (data, (UIntPtr)data.Length, output, (UIntPtr)slice_size, stride))
throw new InvalidFormatException("WebP image decoder failed.");
output += slice_size;
}
@@ -94,7 +94,7 @@ namespace GameRes.Formats.Artemis
offset[i] = file.ReadInt32();
for (var i = 0; i < 8; i++)
length[i] = file.ReadInt32();
LibWebPLoader.Load();
WebPCodec.Load();
var image_width = 0;
var image_height = 0;
for (var i = 0; i < 8; i++)
@@ -111,7 +111,7 @@ namespace GameRes.Formats.Artemis
webp_header[j] -= (byte)(0x77 * j);
var slice_width = 0;
var slice_height = 0;
if (1 != WebPGetInfo (webp_header, (UIntPtr)webp_header.Length, ref slice_width, ref slice_height))
if (1 != WebPCodec.WebPGetInfo (webp_header, (UIntPtr)webp_header.Length, ref slice_width, ref slice_height))
throw new InvalidFormatException ("WebP image decoder failed.");
image_width = Math.Max (image_width, slice_width);
image_height += slice_height;
@@ -130,36 +130,5 @@ namespace GameRes.Formats.Artemis
{
throw new NotImplementedException("ImageNekoPNG.Write not implemented");
}
[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;
}
}
}

64
ArcFormats/WebPCodec.cs Normal file
View File

@@ -0,0 +1,64 @@
//! \file WebPCodec.cs
//! \date Sun Apr 12 2026
//! \brief Google WebP image format.
//
// Copyright (C) 2016 by morkt
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.
//
using System;
using System.ComponentModel;
using System.IO;
using System.Reflection;
using System.Runtime.InteropServices;
namespace GameRes.Formats
{
public class WebPCodec
{
[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);
[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 dir = Path.GetDirectoryName (Assembly.GetExecutingAssembly ().Location);
dir = Path.Combine (dir, (IntPtr.Size == 4) ? "x86" : "x64");
var path = Path.Combine (dir, "libwebp.dll");
path = Path.GetFullPath (path);
var lib = LoadLibraryEx (path, IntPtr.Zero, LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR | LOAD_LIBRARY_SEARCH_SYSTEM32);
if (IntPtr.Zero == lib)
throw new Win32Exception (Marshal.GetLastWin32Error ());
loaded = true;
}
}
}

37
ArcFormats/YuRis/ImageYDG.cs
View File

@@ -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;
}
}
}