new image loader API
parent
e3c2f0e119
commit
0ea60a376b
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@ -1 +1 @@
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Subproject commit fb5fee5f568bbb9f42920f0fcdd9f85024f5bf00
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Subproject commit ebf511133aa6f567c004d687acac474e1649bbde
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@ -23,199 +23,107 @@ namespace MoonWorks.Graphics
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protected override Action<IntPtr, IntPtr> QueueDestroyFunction => Refresh.Refresh_QueueDestroyTexture;
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/// <summary>
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/// Loads a PNG from a file path.
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/// NOTE: You can queue as many of these as you want on to a command buffer but it MUST be submitted!
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/// Creates a 2D Texture using PNG or QOI data from raw byte data.
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/// </summary>
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/// <param name="device"></param>
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/// <param name="commandBuffer"></param>
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/// <param name="filePath"></param>
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/// <returns>A Texture object.</returns>
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public static Texture LoadPNG(
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public static unsafe Texture FromData(
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GraphicsDevice device,
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CommandBuffer commandBuffer,
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string filePath
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Span<byte> data
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) {
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var pixels = Refresh.Refresh_Image_LoadPNGFromFile(
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filePath,
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out var width,
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out var height,
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out var channels
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Texture texture;
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fixed (byte *dataPtr = data)
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{
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var pixels = Refresh.Refresh_Image_Load((nint) dataPtr, data.Length, out var width, out var height, out var len);
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TextureCreateInfo textureCreateInfo = new TextureCreateInfo();
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textureCreateInfo.Width = (uint) width;
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textureCreateInfo.Height = (uint) height;
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textureCreateInfo.Depth = 1;
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textureCreateInfo.Format = TextureFormat.R8G8B8A8;
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textureCreateInfo.IsCube = false;
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textureCreateInfo.LevelCount = 1;
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textureCreateInfo.SampleCount = SampleCount.One;
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textureCreateInfo.UsageFlags = TextureUsageFlags.Sampler;
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texture = new Texture(device, textureCreateInfo);
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commandBuffer.SetTextureData(texture, pixels, (uint) len);
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Refresh.Refresh_Image_Free(pixels);
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}
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return texture;
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}
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/// <summary>
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/// Creates a 2D Texture using PNG or QOI data from a stream.
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/// </summary>
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public static unsafe Texture FromStream(
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GraphicsDevice device,
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CommandBuffer commandBuffer,
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Stream stream
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) {
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var length = stream.Length;
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var buffer = NativeMemory.Alloc((nuint) length);
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var span = new Span<byte>(buffer, (int) length);
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stream.ReadExactly(span);
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var texture = FromData(device, commandBuffer, span);
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NativeMemory.Free((void*) buffer);
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return texture;
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}
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/// <summary>
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/// Creates a 2D Texture using PNG or QOI data from a file.
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/// </summary>
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public static Texture FromFile(
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GraphicsDevice device,
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CommandBuffer commandBuffer,
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string path
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) {
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var fileStream = new FileStream(path, FileMode.Open, FileAccess.Read);
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return FromStream(device, commandBuffer, fileStream);
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}
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/// <summary>
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/// Sets data for a texture slice using PNG or QOI data from a stream.
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/// </summary>
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public static unsafe void SetDataFromStream(
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CommandBuffer commandBuffer,
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TextureSlice textureSlice,
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Stream stream
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) {
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var length = stream.Length;
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var buffer = NativeMemory.Alloc((nuint) length);
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var span = new Span<byte>(buffer, (int) length);
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stream.ReadExactly(span);
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var pixels = Refresh.Refresh_Image_Load(
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(nint) buffer,
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(int) length,
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out var w,
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out var h,
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out var len
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);
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var byteCount = (uint) (width * height * channels);
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commandBuffer.SetTextureData(textureSlice, pixels, (uint) len);
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TextureCreateInfo textureCreateInfo = new TextureCreateInfo();
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textureCreateInfo.Width = (uint) width;
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textureCreateInfo.Height = (uint) height;
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textureCreateInfo.Depth = 1;
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textureCreateInfo.Format = TextureFormat.R8G8B8A8;
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textureCreateInfo.IsCube = false;
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textureCreateInfo.LevelCount = 1;
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textureCreateInfo.SampleCount = SampleCount.One;
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textureCreateInfo.UsageFlags = TextureUsageFlags.Sampler;
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var texture = new Texture(device, textureCreateInfo);
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commandBuffer.SetTextureData(texture, pixels, byteCount);
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Refresh.Refresh_Image_FreePNG(pixels);
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return texture;
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Refresh.Refresh_Image_Free(pixels);
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NativeMemory.Free((void*) buffer);
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}
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/// <summary>
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/// Loads a PNG from a byte array.
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/// NOTE: You can queue as many of these as you want on to a command buffer but it MUST be submitted!
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/// Sets data for a texture slice using PNG or QOI data from a file.
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/// </summary>
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/// <param name="device"></param>
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/// <param name="commandBuffer"></param>
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/// <param name="data"></param>
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/// <returns>A Texture object.</returns>
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public unsafe static Texture LoadPNG(
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GraphicsDevice device,
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public static void SetDataFromFile(
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CommandBuffer commandBuffer,
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byte[] data
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TextureSlice textureSlice,
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string path
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) {
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IntPtr pixels;
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int width, height, numChannels;
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fixed (byte* ptr = &data[0])
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{
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pixels = Refresh.Refresh_Image_LoadPNGFromMemory(
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(nint) ptr,
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data.Length,
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out width,
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out height,
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out numChannels
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);
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}
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TextureCreateInfo textureCreateInfo = new TextureCreateInfo
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{
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Width = (uint) width,
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Height = (uint) height,
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Depth = 1,
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Format = TextureFormat.R8G8B8A8,
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IsCube = false,
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LevelCount = 1,
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SampleCount = SampleCount.One,
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UsageFlags = TextureUsageFlags.Sampler
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};
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var byteCount = (uint) (width * height * numChannels);
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var texture = new Texture(device, textureCreateInfo);
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commandBuffer.SetTextureData(texture, pixels, byteCount);
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Refresh.Refresh_Image_FreePNG(pixels);
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return texture;
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}
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/// <summary>
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/// Saves RGBA or BGRA pixel data to a file in PNG format.
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/// </summary>
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public unsafe static void SavePNG(string path, int width, int height, TextureFormat format, byte[] pixels)
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{
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if (format != TextureFormat.R8G8B8A8 && format != TextureFormat.B8G8R8A8)
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{
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throw new ArgumentException("Texture format must be RGBA8 or BGRA8!", "format");
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}
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fixed (byte* ptr = &pixels[0])
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{
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Refresh.Refresh_Image_SavePNG(path, width, height, Conversions.BoolToByte(format == TextureFormat.B8G8R8A8), (IntPtr) ptr);
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}
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}
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/// <summary>
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/// Loads a QOI from a file path.
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/// NOTE: You can queue as many of these as you want on to a command buffer but it MUST be submitted!
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/// </summary>
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/// <param name="device"></param>
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/// <param name="commandBuffer"></param>
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/// <param name="filePath"></param>
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/// <returns>A Texture object.</returns>
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public unsafe static Texture LoadQOI(
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GraphicsDevice device,
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CommandBuffer commandBuffer,
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string filePath
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) {
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var pixels = Refresh.Refresh_Image_LoadQOIFromFile(
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filePath,
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out var width,
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out var height,
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out var numChannels
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);
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var byteCount = (uint) (width * height * numChannels);
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TextureCreateInfo textureCreateInfo = new TextureCreateInfo
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{
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Width = (uint) width,
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Height = (uint) height,
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Depth = 1,
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Format = TextureFormat.R8G8B8A8,
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IsCube = false,
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LevelCount = 1,
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SampleCount = SampleCount.One,
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UsageFlags = TextureUsageFlags.Sampler
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};
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var texture = new Texture(device, textureCreateInfo);
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commandBuffer.SetTextureData(texture, pixels, byteCount);
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Refresh.Refresh_Image_FreeQOI(pixels);
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return texture;
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}
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/// <summary>
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/// Loads a QOI from a byte array.
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/// NOTE: You can queue as many of these as you want on to a command buffer but it MUST be submitted!
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/// </summary>
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/// <param name="device"></param>
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/// <param name="commandBuffer"></param>
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/// <param name="filePath"></param>
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/// <returns>A Texture object.</returns>
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public unsafe static Texture LoadQOI(
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GraphicsDevice device,
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CommandBuffer commandBuffer,
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byte[] data
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) {
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IntPtr pixels;
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int width, height, numChannels;
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fixed (byte* ptr = &data[0])
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{
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pixels = Refresh.Refresh_Image_LoadQOIFromMemory(
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(nint) ptr,
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data.Length,
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out width,
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out height,
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out numChannels
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);
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}
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TextureCreateInfo textureCreateInfo = new TextureCreateInfo
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{
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Width = (uint) width,
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Height = (uint) height,
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Depth = 1,
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Format = TextureFormat.R8G8B8A8,
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IsCube = false,
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LevelCount = 1,
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SampleCount = SampleCount.One,
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UsageFlags = TextureUsageFlags.Sampler
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};
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var byteCount = (uint) (width * height * numChannels);
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var texture = new Texture(device, textureCreateInfo);
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commandBuffer.SetTextureData(texture, pixels, byteCount);
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Refresh.Refresh_Image_FreePNG(pixels);
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return texture;
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var fileStream = new FileStream(path, FileMode.Open, FileAccess.Read);
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SetDataFromStream(commandBuffer, textureSlice, fileStream);
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}
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public unsafe static Texture LoadDDS(GraphicsDevice graphicsDevice, CommandBuffer commandBuffer, System.IO.Stream stream)
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@ -669,5 +577,61 @@ namespace MoonWorks.Graphics
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);
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}
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}
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/// <summary>
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/// Asynchronously saves RGBA or BGRA pixel data to a file in PNG format.
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/// Warning: this is expensive!
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/// </summary>
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public unsafe void SavePNG(string path)
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{
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#if DEBUG
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if (Format != TextureFormat.R8G8B8A8 && Format != TextureFormat.B8G8R8A8)
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{
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throw new ArgumentException("Texture format must be RGBA or BGRA!", "format");
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}
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#endif
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var buffer = new Buffer(Device, 0, Width * Height * 4); // this creates garbage... oh well
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// immediately request the data copy
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var commandBuffer = Device.AcquireCommandBuffer();
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commandBuffer.CopyTextureToBuffer(this, buffer);
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Device.Submit(commandBuffer);
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var byteCount = buffer.Size;
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var pixelsPtr = NativeMemory.Alloc((nuint) byteCount);
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var pixelsSpan = new Span<byte>(pixelsPtr, (int) byteCount);
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Device.Wait(); // make sure the data transfer is done...
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buffer.GetData(pixelsSpan);
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if (Format == TextureFormat.B8G8R8A8)
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{
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var rgbaPtr = NativeMemory.Alloc((nuint) byteCount);
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var rgbaSpan = new Span<byte>(rgbaPtr, (int) byteCount);
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for (var i = 0; i < byteCount; i += 4)
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{
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rgbaSpan[i] = pixelsSpan[i + 2];
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rgbaSpan[i + 1] = pixelsSpan[i + 1];
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rgbaSpan[i + 2] = pixelsSpan[i];
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rgbaSpan[i + 3] = pixelsSpan[i + 3];
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}
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Refresh.Refresh_Image_SavePNG(path, (nint) rgbaPtr, (int) Width, (int) Height);
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NativeMemory.Free((void*) rgbaPtr);
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}
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else
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{
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fixed (byte* ptr = pixelsSpan)
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{
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Refresh.Refresh_Image_SavePNG(path, (nint) ptr, (int) Width, (int) Height);
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}
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}
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NativeMemory.Free(pixelsPtr);
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}
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}
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}
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