public static KtxHeader InitializeUncompressed(int width, int height, GLType type, GLFormat format, uint glTypeSize, GlInternalFormat internalFormat, GLFormat baseInternalFormat)
{
KtxHeader header = new KtxHeader();
Span <byte> id = stackalloc byte[] { 0xAB, 0x4B, 0x54, 0x58, 0x20, 0x31, 0x31, 0xBB, 0x0D, 0x0A, 0x1A, 0x0A };
for (int i = 0; i < id.Length; i++)
{
header.Identifier[i] = id[i];
}
header.Endianness = 0x04030201;
header.PixelWidth = (uint)width;
header.PixelHeight = (uint)height;
header.GlType = type;
header.GlTypeSize = glTypeSize;
header.GlFormat = format;
header.GlInternalFormat = internalFormat;
header.GlBaseInternalFormat = baseInternalFormat;
return(header);
}
}
public static VkFormat vkGetFormatFromOpenGLInternalFormat(GlInternalFormat internalFormat, GLFormat format, GLType glType)
{
switch (internalFormat)
{
//
// Packed formats
//
case GlInternalFormat.GL_RGBA4:
if (format == GLFormat.GL_RGBA)
{
return(VkFormat.R4g4b4a4UnormPack16);
}
else
{
return(VkFormat.B4g4r4a4UnormPack16);
}
case GlInternalFormat.GL_RGB565:
if (glType == GLType.GL_UNSIGNED_SHORT_5_6_5)
{
return(VkFormat.R5g6b5UnormPack16);
}
else
{
return(VkFormat.B5g6r5UnormPack16);
}
case GlInternalFormat.GL_RGB5_A1:
if (format == GLFormat.GL_RGBA)
{
return(VkFormat.R5g5b5a1UnormPack16);
}
else if (glType == GLType.GL_UNSIGNED_SHORT_5_5_5_1)
{
return(VkFormat.B5g5r5a1UnormPack16);
}
else
{
return(VkFormat.A1r5g5b5UnormPack16);
}
//
// Raw formats 8 bits
//
case GlInternalFormat.GL_R8:
return(VkFormat.R8Unorm);
case GlInternalFormat.GL_R8_SNORM:
return(VkFormat.R8Snorm);
case GlInternalFormat.GL_R8UI:
return(VkFormat.R8Uint);
case GlInternalFormat.GL_R8I:
return(VkFormat.R8Sint);
case GlInternalFormat.GL_RG8:
return(VkFormat.R8g8Unorm);
case GlInternalFormat.GL_RG8_SNORM:
return(VkFormat.R8g8Snorm);
case GlInternalFormat.GL_RG8UI:
return(VkFormat.R8g8Uint);
case GlInternalFormat.GL_RG8I:
return(VkFormat.R8g8Sint);
case GlInternalFormat.GL_RGB8:
if (format == GLFormat.GL_RGB)
{
return(VkFormat.R8g8b8Unorm);
}
else
{
return(VkFormat.B8g8r8Unorm);
}
case GlInternalFormat.GL_RGB8_SNORM:
if (format == GLFormat.GL_RGB)
{
return(VkFormat.R8g8b8Snorm);
}
else
{
return(VkFormat.B8g8r8Snorm);
}
case GlInternalFormat.GL_RGB8UI:
if (format == GLFormat.GL_RGB)
{
return(VkFormat.R8g8b8Uint);
}
else
{
return(VkFormat.B8g8r8Uint);
}
case GlInternalFormat.GL_RGB8I:
if (format == GLFormat.GL_RGB)
{
return(VkFormat.R8g8b8Sint);
}
else
{
return(VkFormat.B8g8r8Sint);
}
case GlInternalFormat.GL_RGBA8:
if (format == GLFormat.GL_RGBA)
{
return(VkFormat.R8g8b8a8Unorm);
}
else
{
return(VkFormat.B8g8r8a8Unorm);
}
case GlInternalFormat.GL_RGBA8_SNORM:
if (format == GLFormat.GL_RGBA)
{
return(VkFormat.R8g8b8a8Snorm);
}
else
{
return(VkFormat.B8g8r8a8Snorm);
}
case GlInternalFormat.GL_RGBA8UI:
if (format == GLFormat.GL_RGBA)
{
return(VkFormat.R8g8b8a8Uint);
}
else
{
return(VkFormat.B8g8r8a8Uint);
}
case GlInternalFormat.GL_RGBA8I:
if (format == GLFormat.GL_RGBA)
{
return(VkFormat.R8g8b8a8Sint);
}
else
{
return(VkFormat.B8g8r8a8Sint);
}
//
// 10 bit color 2 alpha packed formats
//
case GlInternalFormat.GL_RGB10_A2:
if (format == GLFormat.GL_RGBA)
{
return(VkFormat.A2r10g10b10SnormPack32);
}
else
{
return(VkFormat.A2b10g10r10SnormPack32);
}
case GlInternalFormat.GL_RGB10_A2UI:
if (format == GLFormat.GL_RGBA)
{
return(VkFormat.A2r10g10b10UintPack32);
}
else
{
return(VkFormat.A2b10g10r10UintPack32);
}
//
// Raw formats 16 bits
//
case GlInternalFormat.GL_R16:
return(VkFormat.R16Unorm);
case GlInternalFormat.GL_R16_SNORM:
return(VkFormat.R16Snorm);
case GlInternalFormat.GL_R16UI:
return(VkFormat.R16Uint);
case GlInternalFormat.GL_R16I:
return(VkFormat.R16Sint);
case GlInternalFormat.GL_R16F:
return(VkFormat.R16Sfloat);
case GlInternalFormat.GL_RG16:
return(VkFormat.R16g16Unorm);
case GlInternalFormat.GL_RG16_SNORM:
return(VkFormat.R16g16Snorm);
case GlInternalFormat.GL_RG16UI:
return(VkFormat.R16g16Uint);
case GlInternalFormat.GL_RG16I:
return(VkFormat.R16g16Sint);
case GlInternalFormat.GL_RG16F:
return(VkFormat.R16g16Sfloat);
case GlInternalFormat.GL_RGB16:
return(VkFormat.R16g16b16Unorm);
case GlInternalFormat.GL_RGB16_SNORM:
return(VkFormat.R16g16b16Snorm);
case GlInternalFormat.GL_RGB16UI:
return(VkFormat.R16g16b16Uint);
case GlInternalFormat.GL_RGB16I:
return(VkFormat.R16g16b16Sint);
case GlInternalFormat.GL_RGB16F:
return(VkFormat.R16g16b16Sfloat);
case GlInternalFormat.GL_RGBA16:
return(VkFormat.R16g16b16a16Unorm);
case GlInternalFormat.GL_RGBA16_SNORM:
return(VkFormat.R16g16b16a16Snorm);
case GlInternalFormat.GL_RGBA16UI:
return(VkFormat.R16g16b16a16Uint);
case GlInternalFormat.GL_RGBA16I:
return(VkFormat.R16g16b16a16Sint);
case GlInternalFormat.GL_RGBA16F:
return(VkFormat.R16g16b16a16Sfloat);
//
// Raw formats 32 bits
//
case GlInternalFormat.GL_R32UI:
return(VkFormat.R32Uint);
case GlInternalFormat.GL_R32I:
return(VkFormat.R32Sint);
case GlInternalFormat.GL_R32F:
return(VkFormat.R32Sfloat);
case GlInternalFormat.GL_RG32UI:
return(VkFormat.R32g32Uint);
case GlInternalFormat.GL_RG32I:
return(VkFormat.R32g32Sint);
case GlInternalFormat.GL_RG32F:
return(VkFormat.R32g32Sfloat);
case GlInternalFormat.GL_RGB32UI:
return(VkFormat.R32g32b32Uint);
case GlInternalFormat.GL_RGB32I:
return(VkFormat.R32g32b32Sint);
case GlInternalFormat.GL_RGB32F:
return(VkFormat.R32g32b32Sfloat);
case GlInternalFormat.GL_RGBA32UI:
return(VkFormat.R32g32b32a32Uint);
case GlInternalFormat.GL_RGBA32I:
return(VkFormat.R32g32b32a32Sint);
case GlInternalFormat.GL_RGBA32F:
return(VkFormat.R32g32b32a32Sfloat);
//
// Depth formats
//
case GlInternalFormat.GL_DEPTH_COMPONENT16:
return(VkFormat.D16Unorm);
case GlInternalFormat.GL_DEPTH_COMPONENT24:
return(VkFormat.X8D24UnormPack32);
case GlInternalFormat.GL_DEPTH_COMPONENT32F:
return(VkFormat.D32Sfloat);
case GlInternalFormat.GL_STENCIL_INDEX8:
return(VkFormat.S8Uint);
case GlInternalFormat.GL_DEPTH24_STENCIL8:
return(VkFormat.D24UnormS8Uint);
case GlInternalFormat.GL_DEPTH32F_STENCIL8:
return(VkFormat.D32SfloatS8Uint);
//
// S3TC/DXT/BC
//
case GlInternalFormat.GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
return(VkFormat.Bc1RgbUnormBlock);
case GlInternalFormat.GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
return(VkFormat.Bc1RgbaUnormBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
return(VkFormat.Bc1RgbSrgbBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
return(VkFormat.Bc1RgbaSrgbBlock);
case GlInternalFormat.GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
return(VkFormat.Bc2UnormBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
return(VkFormat.Bc2SrgbBlock);
case GlInternalFormat.GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
return(VkFormat.Bc3UnormBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
return(VkFormat.Bc3SrgbBlock);
case GlInternalFormat.GL_COMPRESSED_RED_RGTC1_EXT:
return(VkFormat.Bc4UnormBlock);
case GlInternalFormat.GL_COMPRESSED_SIGNED_RED_RGTC1_EXT:
return(VkFormat.Bc4SnormBlock);
case GlInternalFormat.GL_COMPRESSED_RED_GREEN_RGTC2_EXT:
return(VkFormat.Bc5UnormBlock);
case GlInternalFormat.GL_COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT:
return(VkFormat.Bc5SnormBlock);
case GlInternalFormat.GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB:
return(VkFormat.Bc6hUfloatBlock);
case GlInternalFormat.GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB:
return(VkFormat.Bc6hSfloatBlock);
case GlInternalFormat.GL_COMPRESSED_RGBA_BPTC_UNORM_ARB:
return(VkFormat.Bc7UnormBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB:
return(VkFormat.Bc7SrgbBlock);
//
// ETC
//
case GlInternalFormat.GL_ETC1_RGB8_OES:
return(VkFormat.Etc2R8g8b8UnormBlock);
case GlInternalFormat.GL_COMPRESSED_RGB8_ETC2:
return(VkFormat.Etc2R8g8b8UnormBlock);
case GlInternalFormat.GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
return(VkFormat.Etc2R8g8b8a1UnormBlock);
case GlInternalFormat.GL_COMPRESSED_RGBA8_ETC2_EAC:
return(VkFormat.Etc2R8g8b8a8UnormBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB8_ETC2:
return(VkFormat.Etc2R8g8b8SrgbBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
return(VkFormat.Etc2R8g8b8a1SrgbBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
return(VkFormat.Etc2R8g8b8a8SrgbBlock);
case GlInternalFormat.GL_COMPRESSED_R11_EAC:
return(VkFormat.EacR11UnormBlock);
case GlInternalFormat.GL_COMPRESSED_RG11_EAC:
return(VkFormat.EacR11g11UnormBlock);
case GlInternalFormat.GL_COMPRESSED_SIGNED_R11_EAC:
return(VkFormat.EacR11SnormBlock);
case GlInternalFormat.GL_COMPRESSED_SIGNED_RG11_EAC:
return(VkFormat.EacR11g11SnormBlock);
//
// ASTC
//
case GlInternalFormat.GL_COMPRESSED_RGBA_ASTC_4x4_KHR:
return(VkFormat.Astc4x4UnormBlock);
case GlInternalFormat.GL_COMPRESSED_RGBA_ASTC_5x4_KHR:
return(VkFormat.Astc5x4UnormBlock);
case GlInternalFormat.GL_COMPRESSED_RGBA_ASTC_5x5_KHR:
return(VkFormat.Astc5x5UnormBlock);
case GlInternalFormat.GL_COMPRESSED_RGBA_ASTC_6x5_KHR:
return(VkFormat.Astc6x5UnormBlock);
case GlInternalFormat.GL_COMPRESSED_RGBA_ASTC_6x6_KHR:
return(VkFormat.Astc6x6UnormBlock);
case GlInternalFormat.GL_COMPRESSED_RGBA_ASTC_8x5_KHR:
return(VkFormat.Astc8x5UnormBlock);
case GlInternalFormat.GL_COMPRESSED_RGBA_ASTC_8x6_KHR:
return(VkFormat.Astc8x6UnormBlock);
case GlInternalFormat.GL_COMPRESSED_RGBA_ASTC_8x8_KHR:
return(VkFormat.Astc8x8UnormBlock);
case GlInternalFormat.GL_COMPRESSED_RGBA_ASTC_10x5_KHR:
return(VkFormat.Astc10x5UnormBlock);
case GlInternalFormat.GL_COMPRESSED_RGBA_ASTC_10x6_KHR:
return(VkFormat.Astc10x6UnormBlock);
case GlInternalFormat.GL_COMPRESSED_RGBA_ASTC_10x8_KHR:
return(VkFormat.Astc10x8UnormBlock);
case GlInternalFormat.GL_COMPRESSED_RGBA_ASTC_10x10_KHR:
return(VkFormat.Astc10x10UnormBlock);
case GlInternalFormat.GL_COMPRESSED_RGBA_ASTC_12x10_KHR:
return(VkFormat.Astc12x10UnormBlock);
case GlInternalFormat.GL_COMPRESSED_RGBA_ASTC_12x12_KHR:
return(VkFormat.Astc12x12UnormBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR:
return(VkFormat.Astc4x4SrgbBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR:
return(VkFormat.Astc5x4SrgbBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR:
return(VkFormat.Astc5x5SrgbBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR:
return(VkFormat.Astc6x5SrgbBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR:
return(VkFormat.Astc6x6SrgbBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR:
return(VkFormat.Astc8x5SrgbBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR:
return(VkFormat.Astc8x6SrgbBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR:
return(VkFormat.Astc8x8SrgbBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR:
return(VkFormat.Astc10x5SrgbBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR:
return(VkFormat.Astc10x6SrgbBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR:
return(VkFormat.Astc10x8SrgbBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR:
return(VkFormat.Astc10x10SrgbBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR:
return(VkFormat.Astc12x10SrgbBlock);
case GlInternalFormat.GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR:
return(VkFormat.Astc12x12SrgbBlock);
default: return(VkFormat.Undefined);
}
}
