50 lines
2.0 KiB
C#
50 lines
2.0 KiB
C#
using Dalamud.Interface;
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using Dalamud.Interface.Internal;
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using WebP.Net.Natives;
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using WebP.Net.Natives.Enums;
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using WebP.Net.Natives.Structs;
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namespace Screenie.Util;
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internal static class WebPHelper {
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internal static async Task<IDalamudTextureWrap?> LoadAsync(UiBuilder builder, byte[] imageBytes) {
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int width;
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int height;
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byte[] rgba;
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unsafe {
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fixed (byte* imagePtr = imageBytes) {
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var features = default(WebPBitstreamFeatures);
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var vp8StatusCode = Native.WebPGetFeatures((nint) imagePtr, imageBytes.Length, ref features);
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if (vp8StatusCode != Vp8StatusCode.Ok) {
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Plugin.Log.Warning($"could not get webp features: {Enum.GetName(vp8StatusCode)}");
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return null;
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}
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width = features.Width;
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height = features.Height;
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rgba = new byte[width * height * 4];
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var decoderConfig = default(WebPDecoderConfig);
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Native.WebPInitDecoderConfig(ref decoderConfig);
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using var free = new OnDispose(() => Native.WebPFreeDecBuffer(ref decoderConfig.output));
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decoderConfig.input = features;
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decoderConfig.output.colorSpace = WebpCspMode.ModeRgba;
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decoderConfig.output.isExternalMemory = 1;
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decoderConfig.output.u.Rgba.size = (nuint) rgba.Length;
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decoderConfig.output.u.Rgba.stride = width * 4;
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fixed (byte* rgbaPtr = rgba) {
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decoderConfig.output.u.Rgba.rgba = (nint) rgbaPtr;
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var code = Native.WebPDecode((nint) imagePtr, imageBytes.Length, ref decoderConfig);
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if (code != Vp8StatusCode.Ok) {
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Plugin.Log.Warning($"could not decode webp: {Enum.GetName(code)}");
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return null;
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}
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}
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}
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}
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return await builder.LoadImageRawAsync(rgba, width, height, 4);
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}
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}
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