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add texture slice setters to ResourceInitializer

what_if_no_video_threads
cosmonaut 2024-02-23 14:04:57 -08:00
parent 31c79d3179
commit a207f404b9
1 changed files with 45 additions and 14 deletions
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59
src/Graphics/ResourceInitializer.cs
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@ -6,9 +6,12 @@ using System.Runtime.InteropServices;
namespace MoonWorks.Graphics
{
/// <summary>
/// A convenience structure for simultaneously creating resources and uploading their data.
/// A convenience structure for creating resources and uploading their data.
///
/// Note that Upload must be called after the Create methods for the data to actually be uploaded.
///
/// Note that this structure does not magically keep memory usage down -
/// you may want to stagger uploads over multiple submissions to minimize memory usage.
/// </summary>
public unsafe class ResourceInitializer : GraphicsResource
{
@ -48,27 +51,23 @@ namespace MoonWorks.Graphics
/// <summary>
/// Creates a 2D Texture from compressed image data to be uploaded.
/// </summary>
public Texture CreateTexture2D(Span<byte> data)
public Texture CreateTexture2D(Span<byte> compressedImageData)
{
var pixelData = ImageUtils.GetPixelDataFromBytes(data, out var width, out var height, out var lengthInBytes);
ImageUtils.ImageInfoFromBytes(compressedImageData, out var width, out var height, out var _);
var texture = Texture.CreateTexture2D(Device, width, height, TextureFormat.R8G8B8A8, TextureUsageFlags.Sampler);
var resourceOffset = CopyData((void*) pixelData, texture.Size);
ImageUtils.FreePixelData(pixelData);
TextureUploads.Add((texture, resourceOffset));
SetTextureDataFromCompressed(texture, compressedImageData);
return texture;
}
/// <summary>
/// Creates a 2D Texture from a compressed image stream to be uploaded.
/// </summary>
public Texture CreateTexture2D(Stream stream)
public Texture CreateTexture2D(Stream compressedImageStream)
{
var length = stream.Length;
var length = compressedImageStream.Length;
var buffer = NativeMemory.Alloc((nuint) length);
var span = new Span<byte>(buffer, (int) length);
stream.ReadExactly(span);
compressedImageStream.ReadExactly(span);
var texture = CreateTexture2D(span);
@ -80,12 +79,15 @@ namespace MoonWorks.Graphics
/// <summary>
/// Creates a 2D Texture from a compressed image file to be uploaded.
/// </summary>
public Texture CreateTexture2D(string path)
public Texture CreateTexture2D(string compressedImageFilePath)
{
var fileStream = new FileStream(path, FileMode.Open, FileAccess.Read);
var fileStream = new FileStream(compressedImageFilePath, FileMode.Open, FileAccess.Read);
return CreateTexture2D(fileStream);
}
/// <summary>
/// Creates a texture from a DDS stream.
/// </summary>
public Texture CreateTextureFromDDS(Stream stream)
{
using var reader = new BinaryReader(stream);
@ -140,12 +142,41 @@ namespace MoonWorks.Graphics
return texture;
}
/// <summary>
/// Creates a texture from a DDS file.
/// </summary>
public Texture CreateTextureFromDDS(string path)
{
var stream = new FileStream(path, FileMode.Open, FileAccess.Read);
return CreateTextureFromDDS(stream);
}
public void SetTextureDataFromCompressed(TextureSlice textureSlice, Span<byte> compressedImageData)
{
var pixelData = ImageUtils.GetPixelDataFromBytes(compressedImageData, out var _, out var _, out var sizeInBytes);
var resourceOffset = CopyDataAligned((void*) pixelData, sizeInBytes, Texture.TexelSize(textureSlice.Texture.Format));
ImageUtils.FreePixelData(pixelData);
TextureUploads.Add((textureSlice, resourceOffset));
}
public void SetTextureDataFromCompressed(TextureSlice textureSlice, Stream compressedImageStream)
{
var length = compressedImageStream.Length;
var buffer = NativeMemory.Alloc((nuint) length);
var span = new Span<byte>(buffer, (int) length);
compressedImageStream.ReadExactly(span);
SetTextureDataFromCompressed(textureSlice, span);
NativeMemory.Free(buffer);
}
public void SetTextureDataFromCompressed(TextureSlice textureSlice, string compressedImageFilePath)
{
var fileStream = new FileStream(compressedImageFilePath, FileMode.Open, FileAccess.Read);
SetTextureDataFromCompressed(textureSlice, fileStream);
}
/// <summary>
/// Uploads all the data corresponding to the created resources.
/// </summary>
@ -231,7 +262,7 @@ namespace MoonWorks.Graphics
{
if (disposing)
{
TransferBuffer.Dispose();
TransferBuffer?.Dispose();
}
NativeMemory.Free(data);