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MoonWorks
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assets stream data directly into unmanaged memory

pull/48/head
cosmonaut 2023-04-05 00:47:02 -07:00
parent 3bd435746b
commit 1cf04a7279
6 changed files with 210 additions and 228 deletions
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85
src/Audio/StaticSound.cs
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@ -53,11 +53,8 @@ namespace MoonWorks.Audio
}
// mostly borrowed from https://github.com/FNA-XNA/FNA/blob/b71b4a35ae59970ff0070dea6f8620856d8d4fec/src/Audio/SoundEffect.cs#L385
public static StaticSound LoadWav(AudioDevice device, string filePath)
public static unsafe StaticSound LoadWav(AudioDevice device, string filePath)
{
// Sample data
byte[] data;
// WaveFormatEx data
ushort wFormatTag;
ushort nChannels;
@ -68,8 +65,9 @@ namespace MoonWorks.Audio
int samplerLoopStart = 0;
int samplerLoopEnd = 0;
using (BinaryReader reader = new BinaryReader(File.OpenRead(filePath)))
{
using var stream = new FileStream(filePath, FileMode.Open, FileAccess.Read);
using var reader = new BinaryReader(stream);
// RIFF Signature
string signature = new string(reader.ReadChars(4));
if (signature != "RIFF")
@ -121,7 +119,9 @@ namespace MoonWorks.Audio
}
int waveDataLength = reader.ReadInt32();
data = reader.ReadBytes(waveDataLength);
var waveDataBuffer = NativeMemory.Alloc((nuint) waveDataLength);
var waveDataSpan = new Span<byte>(waveDataBuffer, waveDataLength);
stream.ReadExactly(waveDataSpan);
// Scan for other chunks
while (reader.PeekChar() != -1)
@ -177,32 +177,32 @@ namespace MoonWorks.Audio
}
}
// End scan
}
return new StaticSound(
var sound = new StaticSound(
device,
wFormatTag,
wBitsPerSample,
nBlockAlign,
nChannels,
nSamplesPerSec,
data,
0,
(uint) data.Length
(nint) waveDataBuffer,
(uint) waveDataLength,
true
);
return sound;
}
public unsafe StaticSound(
public StaticSound(
AudioDevice device,
ushort formatTag,
ushort bitsPerSample,
ushort blockAlign,
ushort channels,
uint samplesPerSecond,
byte[] buffer,
uint bufferOffset, /* number of bytes */
uint bufferLength /* number of bytes */
) : base(device)
IntPtr bufferPtr,
uint bufferLengthInBytes,
bool ownsBuffer) : base(device)
{
FormatTag = formatTag;
BitsPerSample = bitsPerSample;
@ -210,19 +210,17 @@ namespace MoonWorks.Audio
Channels = channels;
SamplesPerSecond = samplesPerSecond;
Handle = new FAudio.FAudioBuffer();
Handle.Flags = FAudio.FAUDIO_END_OF_STREAM;
Handle.pContext = IntPtr.Zero;
Handle.AudioBytes = bufferLength;
Handle.pAudioData = (nint) NativeMemory.Alloc(bufferLength);
Marshal.Copy(buffer, (int) bufferOffset, Handle.pAudioData, (int) bufferLength);
Handle.PlayBegin = 0;
Handle.PlayLength = 0;
Handle = new FAudio.FAudioBuffer
{
Flags = FAudio.FAUDIO_END_OF_STREAM,
pContext = IntPtr.Zero,
pAudioData = bufferPtr,
AudioBytes = bufferLengthInBytes,
PlayBegin = 0,
PlayLength = 0
};
LoopStart = 0;
LoopLength = 0;
OwnsBuffer = true;
OwnsBuffer = ownsBuffer;
}
public unsafe StaticSound(
@ -256,35 +254,6 @@ namespace MoonWorks.Audio
OwnsBuffer = true;
}
public StaticSound(
AudioDevice device,
ushort formatTag,
ushort bitsPerSample,
ushort blockAlign,
ushort channels,
uint samplesPerSecond,
IntPtr bufferPtr,
uint bufferLengthInBytes) : base(device)
{
FormatTag = formatTag;
BitsPerSample = bitsPerSample;
BlockAlign = blockAlign;
Channels = channels;
SamplesPerSecond = samplesPerSecond;
Handle = new FAudio.FAudioBuffer
{
Flags = FAudio.FAUDIO_END_OF_STREAM,
pContext = IntPtr.Zero,
pAudioData = bufferPtr,
AudioBytes = bufferLengthInBytes,
PlayBegin = 0,
PlayLength = 0
};
OwnsBuffer = false;
}
/// <summary>
/// Gets a sound instance from the pool.
/// NOTE: If you lose track of instances, you will create garbage collection pressure!

11
src/Audio/StreamingSoundOgg.cs
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@ -15,10 +15,13 @@ namespace MoonWorks.Audio
public unsafe static StreamingSoundOgg Load(AudioDevice device, string filePath)
{
var fileData = File.ReadAllBytes(filePath);
var fileDataPtr = NativeMemory.Alloc((nuint) fileData.Length);
Marshal.Copy(fileData, 0, (IntPtr) fileDataPtr, fileData.Length);
var vorbisHandle = FAudio.stb_vorbis_open_memory((IntPtr) fileDataPtr, fileData.Length, out int error, IntPtr.Zero);
var fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read);
var fileDataPtr = NativeMemory.Alloc((nuint) fileStream.Length);
var fileDataSpan = new Span<byte>(fileDataPtr, (int) fileStream.Length);
fileStream.ReadExactly(fileDataSpan);
fileStream.Close();
var vorbisHandle = FAudio.stb_vorbis_open_memory((IntPtr) fileDataPtr, fileDataSpan.Length, out int error, IntPtr.Zero);
if (error != 0)
{
NativeMemory.Free(fileDataPtr);

15
src/Graphics/Font/Font.cs
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@ -1,5 +1,6 @@
using System;
using System.IO;
using System.Runtime.InteropServices;
using WellspringCS;
namespace MoonWorks.Graphics.Font
@ -12,11 +13,15 @@ namespace MoonWorks.Graphics.Font
public unsafe Font(string path)
{
var bytes = File.ReadAllBytes(path);
fixed (byte* pByte = &bytes[0])
{
Handle = Wellspring.Wellspring_CreateFont((IntPtr) pByte, (uint) bytes.Length);
}
var fileStream = new FileStream(path, FileMode.Open, FileAccess.Read);
var fileByteBuffer = NativeMemory.Alloc((nuint) fileStream.Length);
var fileByteSpan = new Span<byte>(fileByteBuffer, (int) fileStream.Length);
fileStream.ReadExactly(fileByteSpan);
fileStream.Close();
Handle = Wellspring.Wellspring_CreateFont((IntPtr) fileByteBuffer, (uint) fileByteSpan.Length);
NativeMemory.Free(fileByteBuffer);
}
protected virtual void Dispose(bool disposing)

24
src/Graphics/Resources/ShaderModule.cs
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@ -1,6 +1,7 @@
using RefreshCS;
using System;
using System.IO;
using System.Runtime.InteropServices;
namespace MoonWorks.Graphics
{
@ -13,30 +14,29 @@ namespace MoonWorks.Graphics
public unsafe ShaderModule(GraphicsDevice device, string filePath) : base(device)
{
using (FileStream stream = new FileStream(filePath, FileMode.Open, FileAccess.Read))
{
using var stream = new FileStream(filePath, FileMode.Open, FileAccess.Read);
Handle = CreateFromStream(device, stream);
}
}
public unsafe ShaderModule(GraphicsDevice device, Stream stream) : base(device)
{
Handle = CreateFromStream(device, stream);
}
private unsafe static IntPtr CreateFromStream(GraphicsDevice device, Stream stream)
private static unsafe IntPtr CreateFromStream(GraphicsDevice device, Stream stream)
{
var bytecode = new byte[stream.Length];
stream.Read(bytecode, 0, (int) stream.Length);
var bytecodeBuffer = NativeMemory.Alloc((nuint) stream.Length);
var bytecodeSpan = new Span<byte>(bytecodeBuffer, (int) stream.Length);
stream.ReadExactly(bytecodeSpan);
fixed (byte* ptr = bytecode)
{
Refresh.ShaderModuleCreateInfo shaderModuleCreateInfo;
shaderModuleCreateInfo.codeSize = (UIntPtr) bytecode.Length;
shaderModuleCreateInfo.byteCode = (IntPtr) ptr;
shaderModuleCreateInfo.codeSize = (nuint) stream.Length;
shaderModuleCreateInfo.byteCode = (nint) bytecodeBuffer;
return Refresh.Refresh_CreateShaderModule(device.Handle, shaderModuleCreateInfo);
}
var shaderModule = Refresh.Refresh_CreateShaderModule(device.Handle, shaderModuleCreateInfo);
NativeMemory.Free(bytecodeBuffer);
return shaderModule;
}
}
}

22
src/Graphics/Resources/Texture.cs
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@ -1,5 +1,6 @@
using System;
using System.IO;
using System.Runtime.InteropServices;
using RefreshCS;
namespace MoonWorks.Graphics
@ -217,10 +218,9 @@ namespace MoonWorks.Graphics
return texture;
}
public static Texture LoadDDS(GraphicsDevice graphicsDevice, CommandBuffer commandBuffer, System.IO.Stream stream)
{
using (var reader = new BinaryReader(stream))
public unsafe static Texture LoadDDS(GraphicsDevice graphicsDevice, CommandBuffer commandBuffer, System.IO.Stream stream)
{
using var reader = new BinaryReader(stream);
Texture texture;
int faces;
ParseDDS(reader, out var format, out var width, out var height, out var levels, out var isCube);
@ -243,22 +243,20 @@ namespace MoonWorks.Graphics
var levelWidth = width >> j;
var levelHeight = height >> j;
var pixels = reader.ReadBytes(
Texture.CalculateDDSLevelSize(
levelWidth,
levelHeight,
format
)
);
var levelSize = CalculateDDSLevelSize(levelWidth, levelHeight, format);
var byteBuffer = NativeMemory.Alloc((nuint) levelSize);
var byteSpan = new Span<byte>(byteBuffer, levelSize);
stream.ReadExactly(byteSpan);
var textureSlice = new TextureSlice(texture, new Rect(0, 0, levelWidth, levelHeight), 0, (uint) i, (uint) j);
commandBuffer.SetTextureData(textureSlice, pixels);
commandBuffer.SetTextureData(textureSlice, (nint) byteBuffer, (uint) levelSize);
NativeMemory.Free(byteBuffer);
}
}
return texture;
}
}
/// <summary>
/// Creates a 2D texture.

17
src/Video/Video.cs
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@ -1,6 +1,8 @@
/* Heavily based on https://github.com/FNA-XNA/FNA/blob/master/src/Media/Xiph/VideoPlayer.cs */
using System;
using System.IO;
using System.Runtime.InteropServices;
using SDL2;
namespace MoonWorks.Video
{
@ -16,6 +18,7 @@ namespace MoonWorks.Video
internal IntPtr Handle;
private IntPtr rwData;
private void* videoData;
private int videoDataLength;
public double FramesPerSecond => fps;
public int Width => yWidth;
@ -31,16 +34,19 @@ namespace MoonWorks.Video
public Video(string filename)
{
if (!System.IO.File.Exists(filename))
if (!File.Exists(filename))
{
throw new ArgumentException("Video file not found!");
}
var bytes = System.IO.File.ReadAllBytes(filename);
videoData = NativeMemory.Alloc((nuint) bytes.Length);
Marshal.Copy(bytes, 0, (IntPtr) videoData, bytes.Length);
rwData = SDL2.SDL.SDL_RWFromMem((IntPtr) videoData, bytes.Length);
var fileStream = new FileStream(filename, FileMode.Open, FileAccess.Read);
videoDataLength = (int) fileStream.Length;
videoData = NativeMemory.Alloc((nuint) videoDataLength);
var fileBufferSpan = new Span<byte>(videoData, videoDataLength);
fileStream.ReadExactly(fileBufferSpan);
fileStream.Close();
rwData = SDL.SDL_RWFromMem((IntPtr) videoData, videoDataLength);
if (Theorafile.tf_open_callbacks(rwData, out Handle, callbacks) < 0)
{
throw new ArgumentException("Invalid video file!");
@ -98,6 +104,7 @@ namespace MoonWorks.Video
// free unmanaged resources (unmanaged objects)
Theorafile.tf_close(ref Handle);
SDL.SDL_RWclose(rwData);
NativeMemory.Free(videoData);
IsDisposed = true;