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Start of async asset loading

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- Refactored content manager and asset loaders
- Asset placeholder
- Error asset
This commit is contained in:
Simon Lübeß
2023-03-18 18:59:30 +01:00
parent 7b6662cbc4
commit 50714976e9
11 changed files with 329 additions and 321 deletions
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GlitchyEngine/src/Renderer/Texture.bf
-74
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@@ -63,19 +63,11 @@ namespace GlitchyEngine.Renderer
public class Texture2D : Texture
{
protected String _path ~ delete _;
//public override extern uint32 Width {get;}
//public override extern uint32 Height {get;}
public override uint32 Depth => 1;
//public override extern uint32 ArraySize {get;}
//public override extern uint32 MipLevels {get;}
private this(StringView path, bool pngSrgb = false)
{
_path = new String(path);
LoadTexture(pngSrgb);
}
// TODO: remove
private this(Stream data)
@@ -83,72 +75,6 @@ namespace GlitchyEngine.Renderer
LoadDds(data);
}
const String PngMagicWord = "\x89\x50\x4E\x47\x0D\x0A\x1A\x0A";
const String DdsMagicWord = "DDS ";
private void LoadTexture(bool pngSrgb)
{
Debug.Profiler.ProfileResourceFunction!();
Stream data = Application.Get().ContentManager.GetStream(_path);
defer delete data;
var readResult = data.Read<char8[8]>();
data.Position = 0;
char8[8] magicWord;
if (readResult case .Ok(out magicWord))
{
StringView strView = .(&magicWord, magicWord.Count);
if (strView.StartsWith(PngMagicWord))
{
LoadPng(data, pngSrgb);
}
else if (strView.StartsWith(DdsMagicWord))
{
LoadDds(data);
}
else
{
Runtime.FatalError("Unknown image format.");
}
}
}
protected void LoadPng(Stream stream, bool srgb)
{
Debug.Profiler.ProfileResourceFunction!();
uint8[] pngData = new:ScopedAlloc! uint8[stream.Length];
var result = stream.TryRead(pngData);
if (result case .Err(let err))
{
Log.EngineLogger.Error($"Failed to read data from stream. Texture: \"{_path}\", Error: {err}");
}
uint8* rawData = ?;
uint32 width = 0, height = 0;
uint32 errorCode = LodePng.LodePng.Decode32(&rawData, &width, &height, pngData.Ptr, (.)pngData.Count);
Debug.Assert(errorCode == 0, "Failed to load png File");
// TODO: load as SRGB because PNGs are usually not stored as linear
//Texture2DDesc desc = .(width, height, .R8G8B8A8_UNorm_SRGB, 1, 1, .Immutable);
Texture2DDesc desc = .(width, height, srgb? .R8G8B8A8_UNorm_SRGB : .R8G8B8A8_UNorm, 1, 1, .Immutable);
PrepareTexturePlatform(desc, false);
SetData<Color>((.)rawData);
LodePng.LodePng.Free(rawData);
}
protected void LoadDds(Stream stream)
{
LoadDdsPlatform(stream);