use serde::{Deserialize, Serialize};

#[repr(C)]
#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, Serialize, Deserialize)]
pub enum TextureFormat {
    // Normal 8 bit formats
    /// Red channel only. 8 bit integer per channel. [0, 255] converted to/from float [0, 1] in shader.
    R8UNorm,

    /// Red channel only. 8 bit integer per channel. [-127, 127] converted to/from float [-1, 1] in shader.
    R8Norm,

    /// Red channel only. 8 bit integer per channel. Unsigned in shader.
    R8UInt,

    /// Red channel only. 8 bit integer per channel. Signed in shader.
    R8Int,

    // Normal 16 bit formats
    /// Red channel only. 16 bit integer per channel. Unsigned in shader.
    R16UInt,

    /// Red channel only. 16 bit integer per channel. Signed in shader.
    R16Int,

    /// Red channel only. 16 bit float per channel. Float in shader.
    R16Float,

    /// Red and green channels. 8 bit integer per channel. [0, 255] converted to/from float [0, 1] in shader.
    Rg8UNorm,

    /// Red and green channels. 8 bit integer per channel. [-127, 127] converted to/from float [-1, 1] in shader.
    Rg8Norm,

    /// Red and green channels. 8 bit integer per channel. Unsigned in shader.
    Rg8UInt,

    /// Red and green channels. 8 bit integer per channel. Signed in shader.
    Rg8Int,

    // Normal 32 bit formats
    /// Red channel only. 32 bit integer per channel. Unsigned in shader.
    R32UInt,

    /// Red channel only. 32 bit integer per channel. Signed in shader.
    R32Int,

    /// Red channel only. 32 bit float per channel. Float in shader.
    R32Float,

    /// Red and green channels. 16 bit integer per channel. Unsigned in shader.
    Rg16UInt,

    /// Red and green channels. 16 bit integer per channel. Signed in shader.
    Rg16Int,

    /// Red and green channels. 16 bit float per channel. Float in shader.
    Rg16Float,

    /// Red, green, blue, and alpha channels. 8 bit integer per channel. [0, 255] converted to/from float [0, 1] in shader.
    Rgba8UNorm,

    /// Red, green, blue, and alpha channels. 8 bit integer per channel. Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    Rgba8UNormSrgb,

    /// Red, green, blue, and alpha channels. 8 bit integer per channel. [-127, 127] converted to/from float [-1, 1] in shader.
    Rgba8Norm,

    /// Red, green, blue, and alpha channels. 8 bit integer per channel. Unsigned in shader.
    Rgba8UInt,

    /// Red, green, blue, and alpha channels. 8 bit integer per channel. Signed in shader.
    Rgba8Int,

    /// Blue, green, red, and alpha channels. 8 bit integer per channel. [0, 255] converted to/from float [0, 1] in shader.
    Bgra8UNorm,

    /// Blue, green, red, and alpha channels. 8 bit integer per channel. Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    Bgra8UNormSrgb,

    // Packed 32 bit formats
    /// Red, green, blue, and alpha channels. 10 bit integer for RGB channels, 2 bit integer for alpha channel. [0, 1023] ([0, 3] for alpha) converted to/from float [0, 1] in shader.
    Rgb10a2UNorm,

    /// Red, green, and blue channels. 11 bit float with no sign bit for RG channels. 10 bit float with no sign bit for blue channel. Float in shader.
    Rg11b10Float,

    // Normal 64 bit formats
    /// Red and green channels. 32 bit integer per channel. Unsigned in shader.
    Rg32UInt,

    /// Red and green channels. 32 bit integer per channel. Signed in shader.
    Rg32Int,

    /// Red and green channels. 32 bit float per channel. Float in shader.
    Rg32Float,

    /// Red, green, blue, and alpha channels. 16 bit integer per channel. Unsigned in shader.
    Rgba16UInt,

    /// Red, green, blue, and alpha channels. 16 bit integer per channel. Signed in shader.
    Rgba16Int,

    /// Red, green, blue, and alpha channels. 16 bit float per channel. Float in shader.
    Rgba16Float,

    // Normal 128 bit formats
    /// Red, green, blue, and alpha channels. 32 bit integer per channel. Unsigned in shader.
    Rgba32UInt,

    /// Red, green, blue, and alpha channels. 32 bit integer per channel. Signed in shader.
    Rgba32Int,

    /// Red, green, blue, and alpha channels. 32 bit float per channel. Float in shader.
    Rgba32Float,

    // Depth and stencil formats
    /// Special depth format with 32 bit floating point depth.
    Depth32Float,

    /// Special depth format with at least 24 bit integer depth.
    Depth24Plus,

    /// Special depth/stencil format with at least 24 bit integer depth and 8 bits integer stencil.
    Depth24PlusStencil8,

    // Packed uncompressed texture formats
    /// Packed unsigned float with 9 bits mantisa for each RGB component, then a common 5 bits exponent
    Rgb9e5Ufloat,

    // Compressed textures usable with `TEXTURE_COMPRESSION_BC` feature.
    /// 4x4 block compressed texture. 8 bytes per block (4 bit/px). 4 color + alpha pallet. 5 bit R + 6 bit G + 5 bit B + 1 bit alpha.
    /// [0, 63] ([0, 1] for alpha) converted to/from float [0, 1] in shader.
    ///
    /// Also known as DXT1.
    ///
    /// [`Features::TEXTURE_COMPRESSION_BC`] must be enabled to use this texture format.
    Bc1RgbaUNorm,

    /// 4x4 block compressed texture. 8 bytes per block (4 bit/px). 4 color + alpha pallet. 5 bit R + 6 bit G + 5 bit B + 1 bit alpha.
    /// Srgb-color [0, 63] ([0, 1] for alpha) converted to/from linear-color float [0, 1] in shader.
    ///
    /// Also known as DXT1.
    ///
    /// [`Features::TEXTURE_COMPRESSION_BC`] must be enabled to use this texture format.
    Bc1RgbaUNormSrgb,

    /// 4x4 block compressed texture. 16 bytes per block (8 bit/px). 4 color pallet. 5 bit R + 6 bit G + 5 bit B + 4 bit alpha.
    /// [0, 63] ([0, 15] for alpha) converted to/from float [0, 1] in shader.
    ///
    /// Also known as DXT3.
    ///
    /// [`Features::TEXTURE_COMPRESSION_BC`] must be enabled to use this texture format.
    Bc2RgbaUNorm,

    /// 4x4 block compressed texture. 16 bytes per block (8 bit/px). 4 color pallet. 5 bit R + 6 bit G + 5 bit B + 4 bit alpha.
    /// Srgb-color [0, 63] ([0, 255] for alpha) converted to/from linear-color float [0, 1] in shader.
    ///
    /// Also known as DXT3.
    ///
    /// [`Features::TEXTURE_COMPRESSION_BC`] must be enabled to use this texture format.
    Bc2RgbaUNormSrgb,

    /// 4x4 block compressed texture. 16 bytes per block (8 bit/px). 4 color pallet + 8 alpha pallet. 5 bit R + 6 bit G + 5 bit B + 8 bit alpha.
    /// [0, 63] ([0, 255] for alpha) converted to/from float [0, 1] in shader.
    ///
    /// Also known as DXT5.
    ///
    /// [`Features::TEXTURE_COMPRESSION_BC`] must be enabled to use this texture format.
    Bc3RgbaUNorm,

    /// 4x4 block compressed texture. 16 bytes per block (8 bit/px). 4 color pallet + 8 alpha pallet. 5 bit R + 6 bit G + 5 bit B + 8 bit alpha.
    /// Srgb-color [0, 63] ([0, 255] for alpha) converted to/from linear-color float [0, 1] in shader.
    ///
    /// Also known as DXT5.
    ///
    /// [`Features::TEXTURE_COMPRESSION_BC`] must be enabled to use this texture format.
    Bc3RgbaUNormSrgb,

    /// 4x4 block compressed texture. 8 bytes per block (4 bit/px). 8 color pallet. 8 bit R.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// Also known as RGTC1.
    ///
    /// [`Features::TEXTURE_COMPRESSION_BC`] must be enabled to use this texture format.
    Bc4RUNorm,

    /// 4x4 block compressed texture. 8 bytes per block (4 bit/px). 8 color pallet. 8 bit R.
    /// [-127, 127] converted to/from float [-1, 1] in shader.
    ///
    /// Also known as RGTC1.
    ///
    /// [`Features::TEXTURE_COMPRESSION_BC`] must be enabled to use this texture format.
    Bc4RNorm,

    /// 4x4 block compressed texture. 16 bytes per block (8 bit/px). 8 color red pallet + 8 color green pallet. 8 bit RG.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// Also known as RGTC2.
    ///
    /// [`Features::TEXTURE_COMPRESSION_BC`] must be enabled to use this texture format.
    Bc5RgUNorm,

    /// 4x4 block compressed texture. 16 bytes per block (8 bit/px). 8 color red pallet + 8 color green pallet. 8 bit RG.
    /// [-127, 127] converted to/from float [-1, 1] in shader.
    ///
    /// Also known as RGTC2.
    ///
    /// [`Features::TEXTURE_COMPRESSION_BC`] must be enabled to use this texture format.
    Bc5RgNorm,

    /// 4x4 block compressed texture. 16 bytes per block (8 bit/px). Variable sized pallet. 16 bit unsigned float RGB. Float in shader.
    ///
    /// Also known as BPTC (float).
    ///
    /// [`Features::TEXTURE_COMPRESSION_BC`] must be enabled to use this texture format.
    Bc6hRgbUfloat,

    /// 4x4 block compressed texture. 16 bytes per block (8 bit/px). Variable sized pallet. 16 bit signed float RGB. Float in shader.
    ///
    /// Also known as BPTC (float).
    ///
    /// [`Features::TEXTURE_COMPRESSION_BC`] must be enabled to use this texture format.
    Bc6hRgbSfloat,

    /// 4x4 block compressed texture. 16 bytes per block (8 bit/px). Variable sized pallet. 8 bit integer RGBA.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// Also known as BPTC (unorm).
    ///
    /// [`Features::TEXTURE_COMPRESSION_BC`] must be enabled to use this texture format.
    Bc7RgbaUNorm,

    /// 4x4 block compressed texture. 16 bytes per block (8 bit/px). Variable sized pallet. 8 bit integer RGBA.
    /// Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    ///
    /// Also known as BPTC (unorm).
    ///
    /// [`Features::TEXTURE_COMPRESSION_BC`] must be enabled to use this texture format.
    Bc7RgbaUNormSrgb,

    /// 4x4 block compressed texture. 8 bytes per block (4 bit/px). Complex pallet. 8 bit integer RGB.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ETC2`] must be enabled to use this texture format.
    Etc2RgbUNorm,

    /// 4x4 block compressed texture. 8 bytes per block (4 bit/px). Complex pallet. 8 bit integer RGB.
    /// Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ETC2`] must be enabled to use this texture format.
    Etc2RgbUNormSrgb,

    /// 4x4 block compressed texture. 8 bytes per block (4 bit/px). Complex pallet. 8 bit integer RGB + 1 bit alpha.
    /// [0, 255] ([0, 1] for alpha) converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ETC2`] must be enabled to use this texture format.
    Etc2RgbA1UNorm,

    /// 4x4 block compressed texture. 8 bytes per block (4 bit/px). Complex pallet. 8 bit integer RGB + 1 bit alpha.
    /// Srgb-color [0, 255] ([0, 1] for alpha) converted to/from linear-color float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ETC2`] must be enabled to use this texture format.
    Etc2RgbA1UNormSrgb,

    /// 4x4 block compressed texture. 16 bytes per block (8 bit/px). Complex pallet. 8 bit integer RGB + 8 bit alpha.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ETC2`] must be enabled to use this texture format.
    //Etc2RgbA8UNorm,

    /// 4x4 block compressed texture. 16 bytes per block (8 bit/px). Complex pallet. 8 bit integer RGB + 8 bit alpha.
    /// Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ETC2`] must be enabled to use this texture format.
    //Etc2RgbA8UNormSrgb,

    /// 4x4 block compressed texture. 8 bytes per block (4 bit/px). Complex pallet. 8 bit integer R.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ETC2`] must be enabled to use this texture format.
    EacRUNorm,

    /// 4x4 block compressed texture. 8 bytes per block (4 bit/px). Complex pallet. 8 bit integer R.
    /// [-127, 127] converted to/from float [-1, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ETC2`] must be enabled to use this texture format.
    EacRNorm,

    /// 4x4 block compressed texture. 16 bytes per block (8 bit/px). Complex pallet. 8 bit integer R + 8 bit integer G.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ETC2`] must be enabled to use this texture format.
    EacRgUNorm,

    /// 4x4 block compressed texture. 16 bytes per block (8 bit/px). Complex pallet. 8 bit integer R + 8 bit integer G.
    /// [-127, 127] converted to/from float [-1, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ETC2`] must be enabled to use this texture format.
    EacRgNorm,

    /// 4x4 block compressed texture. 16 bytes per block (8 bit/px). Complex pallet. 8 bit integer RGBA.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc4x4RgbaUNorm,

    /// 4x4 block compressed texture. 16 bytes per block (8 bit/px). Complex pallet. 8 bit integer RGBA.
    /// Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc4x4RgbaUNormSrgb,

    /// 5x4 block compressed texture. 16 bytes per block (6.4 bit/px). Complex pallet. 8 bit integer RGBA.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc5x4RgbaUNorm,

    /// 5x4 block compressed texture. 16 bytes per block (6.4 bit/px). Complex pallet. 8 bit integer RGBA.
    /// Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc5x4RgbaUNormSrgb,

    /// 5x5 block compressed texture. 16 bytes per block (5.12 bit/px). Complex pallet. 8 bit integer RGBA.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc5x5RgbaUNorm,

    /// 5x5 block compressed texture. 16 bytes per block (5.12 bit/px). Complex pallet. 8 bit integer RGBA.
    /// Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc5x5RgbaUNormSrgb,

    /// 6x5 block compressed texture. 16 bytes per block (4.27 bit/px). Complex pallet. 8 bit integer RGBA.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc6x5RgbaUNorm,

    /// 6x5 block compressed texture. 16 bytes per block (4.27 bit/px). Complex pallet. 8 bit integer RGBA.
    /// Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc6x5RgbaUNormSrgb,

    /// 6x6 block compressed texture. 16 bytes per block (3.56 bit/px). Complex pallet. 8 bit integer RGBA.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc6x6RgbaUNorm,

    /// 6x6 block compressed texture. 16 bytes per block (3.56 bit/px). Complex pallet. 8 bit integer RGBA.
    /// Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc6x6RgbaUNormSrgb,

    /// 8x5 block compressed texture. 16 bytes per block (3.2 bit/px). Complex pallet. 8 bit integer RGBA.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc8x5RgbaUNorm,

    /// 8x5 block compressed texture. 16 bytes per block (3.2 bit/px). Complex pallet. 8 bit integer RGBA.
    /// Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc8x5RgbaUNormSrgb,

    /// 8x6 block compressed texture. 16 bytes per block (2.67 bit/px). Complex pallet. 8 bit integer RGBA.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc8x6RgbaUNorm,

    /// 8x6 block compressed texture. 16 bytes per block (2.67 bit/px). Complex pallet. 8 bit integer RGBA.
    /// Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc8x6RgbaUNormSrgb,

    /// 10x5 block compressed texture. 16 bytes per block (2.56 bit/px). Complex pallet. 8 bit integer RGBA.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc10x5RgbaUNorm,

    /// 10x5 block compressed texture. 16 bytes per block (2.56 bit/px). Complex pallet. 8 bit integer RGBA.
    /// Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc10x5RgbaUNormSrgb,

    /// 10x6 block compressed texture. 16 bytes per block (2.13 bit/px). Complex pallet. 8 bit integer RGBA.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc10x6RgbaUNorm,

    /// 10x6 block compressed texture. 16 bytes per block (2.13 bit/px). Complex pallet. 8 bit integer RGBA.
    /// Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc10x6RgbaUNormSrgb,

    /// 8x8 block compressed texture. 16 bytes per block (2 bit/px). Complex pallet. 8 bit integer RGBA.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc8x8RgbaUNorm,

    /// 8x8 block compressed texture. 16 bytes per block (2 bit/px). Complex pallet. 8 bit integer RGBA.
    /// Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc8x8RgbaUNormSrgb,

    /// 10x8 block compressed texture. 16 bytes per block (1.6 bit/px). Complex pallet. 8 bit integer RGBA.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc10x8RgbaUNorm,

    /// 10x8 block compressed texture. 16 bytes per block (1.6 bit/px). Complex pallet. 8 bit integer RGBA.
    /// Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc10x8RgbaUNormSrgb,

    /// 10x10 block compressed texture. 16 bytes per block (1.28 bit/px). Complex pallet. 8 bit integer RGBA.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc10x10RgbaUNorm,

    /// 10x10 block compressed texture. 16 bytes per block (1.28 bit/px). Complex pallet. 8 bit integer RGBA.
    /// Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc10x10RgbaUNormSrgb,

    /// 12x10 block compressed texture. 16 bytes per block (1.07 bit/px). Complex pallet. 8 bit integer RGBA.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc12x10RgbaUNorm,

    /// 12x10 block compressed texture. 16 bytes per block (1.07 bit/px). Complex pallet. 8 bit integer RGBA.
    /// Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc12x10RgbaUNormSrgb,

    /// 12x12 block compressed texture. 16 bytes per block (0.89 bit/px). Complex pallet. 8 bit integer RGBA.
    /// [0, 255] converted to/from float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc12x12RgbaUNorm,

    /// 12x12 block compressed texture. 16 bytes per block (0.89 bit/px). Complex pallet. 8 bit integer RGBA.
    /// Srgb-color [0, 255] converted to/from linear-color float [0, 1] in shader.
    ///
    /// [`Features::TEXTURE_COMPRESSION_ASTC_LDR`] must be enabled to use this texture format.
    Astc12x12RgbaUNormSrgb,
}