ReFuel/ReFuel.StbImage
ReFuel/ReFuel.StbImage
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Additional documentation.

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H. Utku Maden 2024-11-18 19:57:50 +03:00
parent df61cdc5aa
commit 7157db6bd0
1 changed files with 18 additions and 12 deletions
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20
StbImage.cs
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@ -33,6 +33,7 @@ namespace ReFuel.Stb
/// Internal image format.
/// </summary>
public StbiImageFormat Format { get; }
/// <summary>
/// True if the image is a floating point image.
/// </summary>
@ -66,7 +67,7 @@ namespace ReFuel.Stb
StbiImageFormat.GreyAlpha => 2,
StbiImageFormat.Rgb => 3,
StbiImageFormat.Rgba => 4,
_ => throw new Exception("unkown image format")
_ => throw new Exception("unknown image format")
} * (IsFloat ? sizeof(float) : sizeof(byte));
return new ReadOnlySpan<T>((T*)ImagePointer, Width * Height * sz / sizeof(T));
@ -112,6 +113,7 @@ namespace ReFuel.Stb
/// Write image to a PNG file.
/// </summary>
/// <param name="dest">The destination stream.</param>
/// <param name="quality">The JPEG quality factor.</param>
/// <remarks>
/// Incurs a conversion cost if the image format is not a byte format. Ignores alpha channel. Affected by non-thread safe global options.
/// </remarks>
@ -201,13 +203,13 @@ namespace ReFuel.Stb
/// <param name="image">The resulting image.</param>
/// <param name="stream">Source stream.</param>
/// <param name="format">The desired image format.</param>
/// <param name="asFloat">The buffer uses floating point pixels if true.</param>
/// <returns>True on success.</returns>
public static bool TryLoad([NotNullWhen(true)] out StbImage? image, Stream stream, StbiImageFormat format = StbiImageFormat.Default, bool asFloat = false)
{
int x, y, iFormat;
StbiStreamWrapper wrapper = new StbiStreamWrapper(stream, true);
wrapper.CreateCallbacks(out stbi_io_callbacks cb);
stream.Position = 0;
IntPtr imagePtr;
if (asFloat)
@ -237,6 +239,7 @@ namespace ReFuel.Stb
/// <param name="image">The resulting image.</param>
/// <param name="span">Source memory span.</param>
/// <param name="format">The desired image format.</param>
/// <param name="asFloat">The buffer uses floating point pixels if true.</param>
/// <returns>True on success.</returns>
public static bool TryLoad([NotNullWhen(true)] out StbImage? image, ReadOnlySpan<byte> span, StbiImageFormat format = StbiImageFormat.Default, bool asFloat = false)
{
@ -271,6 +274,7 @@ namespace ReFuel.Stb
/// </summary>
/// <param name="stream">The stream to load from.</param>
/// <param name="format">The desired image format.</param>
/// <param name="asFloat">The buffer uses floating point pixels if true.</param>
/// <returns>The image object.</returns>
public static StbImage Load(Stream stream, StbiImageFormat format = StbiImageFormat.Default, bool asFloat = false)
{
@ -288,6 +292,7 @@ namespace ReFuel.Stb
/// </summary>
/// <param name="span">The span of memory to load from.</param>
/// <param name="format">The desired image format.</param>
/// <param name="asFloat">The buffer uses floating point pixels if true.</param>
/// <returns>The image object.</returns>
public static StbImage Load(ReadOnlySpan<byte> span, StbiImageFormat format = StbiImageFormat.Default, bool asFloat = false)
{
@ -389,7 +394,7 @@ namespace ReFuel.Stb
/// <param name="data">Span of pixel data.</param>
/// <param name="width">Width of the pixel data in pixels.</param>
/// <param name="height">Height of the pixel data in pixels.</param>
/// <param name="format">Color format of the pixel data. Must not be <see cref="StbiImageFormat.StbiImageFormat"/>.</param>
/// <param name="format">Color format of the pixel data. Must not be <see cref="StbiImageFormat"/>.</param>
/// <param name="destination">The destination stream.</param>
/// <param name="isFloat">True if the pixel format in data is a floating point format.</param>
/// <remarks>
@ -425,7 +430,7 @@ namespace ReFuel.Stb
/// <param name="data">Span of pixel data.</param>
/// <param name="width">Width of the pixel data in pixels.</param>
/// <param name="height">Height of the pixel data in pixels.</param>
/// <param name="format">Color format of the pixel data. Must not be <see cref="StbiImageFormat.StbiImageFormat"/>.</param>
/// <param name="format">Color format of the pixel data. Must not be <see cref="StbiImageFormat"/>.</param>
/// <param name="destination">The destination stream.</param>
/// <param name="isFloat">True if the pixel format in data is a floating point format.</param>
/// <remarks>
@ -461,7 +466,7 @@ namespace ReFuel.Stb
/// <param name="data">Span of pixel data.</param>
/// <param name="width">Width of the pixel data in pixels.</param>
/// <param name="height">Height of the pixel data in pixels.</param>
/// <param name="format">Color format of the pixel data. Must not be <see cref="StbiImageFormat.StbiImageFormat"/>.</param>
/// <param name="format">Color format of the pixel data. Must not be <see cref="StbiImageFormat"/>.</param>
/// <param name="destination">The destination stream.</param>
/// <param name="isFloat">True if the pixel format in data is a floating point format.</param>
/// <remarks>
@ -497,7 +502,7 @@ namespace ReFuel.Stb
/// <param name="data">Span of pixel data.</param>
/// <param name="width">Width of the pixel data in pixels.</param>
/// <param name="height">Height of the pixel data in pixels.</param>
/// <param name="format">Color format of the pixel data. Must not be <see cref="StbiImageFormat.StbiImageFormat"/>.</param>
/// <param name="format">Color format of the pixel data. Must not be <see cref="StbiImageFormat"/>.</param>
/// <param name="destination">The destination stream.</param>
/// <param name="isFloat">True if the pixel format in data is a floating point format.</param>
/// <remarks>
@ -533,8 +538,9 @@ namespace ReFuel.Stb
/// <param name="data">Span of pixel data.</param>
/// <param name="width">Width of the pixel data in pixels.</param>
/// <param name="height">Height of the pixel data in pixels.</param>
/// <param name="format">Color format of the pixel data. Must not be <see cref="StbiImageFormat.StbiImageFormat"/>.</param>
/// <param name="format">Color format of the pixel data. Must not be <see cref="StbiImageFormat"/>.</param>
/// <param name="destination">The destination stream.</param>
/// <param name="quality">The JPEG quality factor.</param>
/// <param name="isFloat">True if the pixel format in data is a floating point format.</param>
/// <remarks>
/// This will incur a conversion cost if the pixel format is not a byte format. Ignores the alpha channel. Affected by global non-thread safe options.