add DDS parser to ImageUtils
parent
b80527d793
commit
1eae01c95c
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@ -229,5 +229,273 @@ namespace MoonWorks.Graphics
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Refresh.Refresh_Image_SavePNG(path, (nint) pixelsPtr, width, height);
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NativeMemory.Free(pixelsPtr);
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}
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// DDS loading extension, based on MojoDDS
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// Taken from https://github.com/FNA-XNA/FNA/blob/1e49f868f595f62bc6385db45949a03186a7cd7f/src/Graphics/Texture.cs#L194
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public static void ParseDDS(
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BinaryReader reader,
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out TextureFormat format,
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out int width,
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out int height,
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out int levels,
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out bool isCube
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) {
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// A whole bunch of magic numbers, yay DDS!
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const uint DDS_MAGIC = 0x20534444;
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const uint DDS_HEADERSIZE = 124;
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const uint DDS_PIXFMTSIZE = 32;
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const uint DDSD_HEIGHT = 0x2;
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const uint DDSD_WIDTH = 0x4;
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const uint DDSD_PITCH = 0x8;
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const uint DDSD_LINEARSIZE = 0x80000;
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const uint DDSD_REQ = (
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DDSD_HEIGHT | DDSD_WIDTH
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);
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const uint DDSCAPS_MIPMAP = 0x400000;
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const uint DDSCAPS_TEXTURE = 0x1000;
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const uint DDSCAPS2_CUBEMAP = 0x200;
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const uint DDPF_FOURCC = 0x4;
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const uint DDPF_RGB = 0x40;
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const uint FOURCC_DXT1 = 0x31545844;
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const uint FOURCC_DXT3 = 0x33545844;
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const uint FOURCC_DXT5 = 0x35545844;
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const uint FOURCC_DX10 = 0x30315844;
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const uint pitchAndLinear = (
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DDSD_PITCH | DDSD_LINEARSIZE
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);
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// File should start with 'DDS '
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if (reader.ReadUInt32() != DDS_MAGIC)
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{
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throw new NotSupportedException("Not a DDS!");
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}
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// Texture info
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uint size = reader.ReadUInt32();
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if (size != DDS_HEADERSIZE)
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{
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throw new NotSupportedException("Invalid DDS header!");
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}
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uint flags = reader.ReadUInt32();
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if ((flags & DDSD_REQ) != DDSD_REQ)
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{
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throw new NotSupportedException("Invalid DDS flags!");
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}
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if ((flags & pitchAndLinear) == pitchAndLinear)
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{
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throw new NotSupportedException("Invalid DDS flags!");
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}
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height = reader.ReadInt32();
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width = reader.ReadInt32();
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reader.ReadUInt32(); // dwPitchOrLinearSize, unused
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reader.ReadUInt32(); // dwDepth, unused
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levels = reader.ReadInt32();
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// "Reserved"
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reader.ReadBytes(4 * 11);
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// Format info
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uint formatSize = reader.ReadUInt32();
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if (formatSize != DDS_PIXFMTSIZE)
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{
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throw new NotSupportedException("Bogus PIXFMTSIZE!");
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}
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uint formatFlags = reader.ReadUInt32();
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uint formatFourCC = reader.ReadUInt32();
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uint formatRGBBitCount = reader.ReadUInt32();
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uint formatRBitMask = reader.ReadUInt32();
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uint formatGBitMask = reader.ReadUInt32();
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uint formatBBitMask = reader.ReadUInt32();
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uint formatABitMask = reader.ReadUInt32();
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// dwCaps "stuff"
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uint caps = reader.ReadUInt32();
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if ((caps & DDSCAPS_TEXTURE) == 0)
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{
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throw new NotSupportedException("Not a texture!");
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}
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isCube = false;
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uint caps2 = reader.ReadUInt32();
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if (caps2 != 0)
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{
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if ((caps2 & DDSCAPS2_CUBEMAP) == DDSCAPS2_CUBEMAP)
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{
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isCube = true;
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}
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else
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{
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throw new NotSupportedException("Invalid caps2!");
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}
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}
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reader.ReadUInt32(); // dwCaps3, unused
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reader.ReadUInt32(); // dwCaps4, unused
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// "Reserved"
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reader.ReadUInt32();
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// Mipmap sanity check
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if ((caps & DDSCAPS_MIPMAP) != DDSCAPS_MIPMAP)
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{
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levels = 1;
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}
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// Determine texture format
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if ((formatFlags & DDPF_FOURCC) == DDPF_FOURCC)
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{
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switch (formatFourCC)
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{
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case 0x71: // D3DFMT_A16B16G16R16F
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format = TextureFormat.R16G16B16A16_SFLOAT;
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break;
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case 0x74: // D3DFMT_A32B32G32R32F
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format = TextureFormat.R32G32B32A32_SFLOAT;
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break;
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case FOURCC_DXT1:
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format = TextureFormat.BC1;
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break;
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case FOURCC_DXT3:
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format = TextureFormat.BC2;
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break;
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case FOURCC_DXT5:
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format = TextureFormat.BC3;
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break;
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case FOURCC_DX10:
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// If the fourCC is DX10, there is an extra header with additional format information.
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uint dxgiFormat = reader.ReadUInt32();
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// These values are taken from the DXGI_FORMAT enum.
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switch (dxgiFormat)
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{
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case 2:
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format = TextureFormat.R32G32B32A32_SFLOAT;
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break;
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case 10:
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format = TextureFormat.R16G16B16A16_SFLOAT;
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break;
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case 71:
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format = TextureFormat.BC1;
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break;
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case 74:
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format = TextureFormat.BC2;
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break;
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case 77:
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format = TextureFormat.BC3;
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break;
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case 98:
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format = TextureFormat.BC7;
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break;
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default:
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throw new NotSupportedException(
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"Unsupported DDS texture format"
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);
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}
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uint resourceDimension = reader.ReadUInt32();
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// These values are taken from the D3D10_RESOURCE_DIMENSION enum.
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switch (resourceDimension)
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{
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case 0: // Unknown
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case 1: // Buffer
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throw new NotSupportedException(
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"Unsupported DDS texture format"
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);
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default:
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break;
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}
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/*
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* This flag seemingly only indicates if the texture is a cube map.
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* This is already determined above. Cool!
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*/
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uint miscFlag = reader.ReadUInt32();
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/*
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* Indicates the number of elements in the texture array.
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* We don't support texture arrays so just throw if it's greater than 1.
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*/
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uint arraySize = reader.ReadUInt32();
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if (arraySize > 1)
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{
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throw new NotSupportedException(
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"Unsupported DDS texture format"
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);
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}
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reader.ReadUInt32(); // reserved
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break;
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default:
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throw new NotSupportedException(
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"Unsupported DDS texture format"
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);
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}
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}
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else if ((formatFlags & DDPF_RGB) == DDPF_RGB)
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{
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if ( formatRGBBitCount != 32 ||
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formatRBitMask != 0x00FF0000 ||
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formatGBitMask != 0x0000FF00 ||
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formatBBitMask != 0x000000FF ||
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formatABitMask != 0xFF000000 )
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{
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throw new NotSupportedException(
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"Unsupported DDS texture format"
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);
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}
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format = TextureFormat.B8G8R8A8;
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}
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else
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{
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throw new NotSupportedException(
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"Unsupported DDS texture format"
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);
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}
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}
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public static int CalculateDDSLevelSize(
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int width,
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int height,
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TextureFormat format
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) {
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if (format == TextureFormat.R8G8B8A8)
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{
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return (((width * 32) + 7) / 8) * height;
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}
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else if (format == TextureFormat.R16G16B16A16_SFLOAT)
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{
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return (((width * 64) + 7) / 8) * height;
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}
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else if (format == TextureFormat.R32G32B32A32_SFLOAT)
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{
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return (((width * 128) + 7) / 8) * height;
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}
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else
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{
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int blockSize = 16;
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if (format == TextureFormat.BC1)
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{
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blockSize = 8;
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}
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width = System.Math.Max(width, 1);
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height = System.Math.Max(height, 1);
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return (
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((width + 3) / 4) *
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((height + 3) / 4) *
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blockSize
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);
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}
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}
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}
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}
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@ -165,274 +165,6 @@ namespace MoonWorks.Graphics
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Size = Width * Height * BytesPerPixel(Format) / BlockSizeSquared(Format);
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}
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// DDS loading extension, based on MojoDDS
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// Taken from https://github.com/FNA-XNA/FNA/blob/1e49f868f595f62bc6385db45949a03186a7cd7f/src/Graphics/Texture.cs#L194
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private static void ParseDDS(
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BinaryReader reader,
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out TextureFormat format,
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out int width,
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out int height,
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out int levels,
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out bool isCube
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) {
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// A whole bunch of magic numbers, yay DDS!
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const uint DDS_MAGIC = 0x20534444;
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const uint DDS_HEADERSIZE = 124;
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const uint DDS_PIXFMTSIZE = 32;
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const uint DDSD_HEIGHT = 0x2;
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const uint DDSD_WIDTH = 0x4;
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const uint DDSD_PITCH = 0x8;
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const uint DDSD_LINEARSIZE = 0x80000;
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const uint DDSD_REQ = (
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DDSD_HEIGHT | DDSD_WIDTH
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);
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const uint DDSCAPS_MIPMAP = 0x400000;
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const uint DDSCAPS_TEXTURE = 0x1000;
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const uint DDSCAPS2_CUBEMAP = 0x200;
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const uint DDPF_FOURCC = 0x4;
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const uint DDPF_RGB = 0x40;
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const uint FOURCC_DXT1 = 0x31545844;
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const uint FOURCC_DXT3 = 0x33545844;
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const uint FOURCC_DXT5 = 0x35545844;
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const uint FOURCC_DX10 = 0x30315844;
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const uint pitchAndLinear = (
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DDSD_PITCH | DDSD_LINEARSIZE
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);
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// File should start with 'DDS '
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if (reader.ReadUInt32() != DDS_MAGIC)
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{
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throw new NotSupportedException("Not a DDS!");
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}
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// Texture info
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uint size = reader.ReadUInt32();
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if (size != DDS_HEADERSIZE)
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{
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throw new NotSupportedException("Invalid DDS header!");
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}
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uint flags = reader.ReadUInt32();
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if ((flags & DDSD_REQ) != DDSD_REQ)
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{
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throw new NotSupportedException("Invalid DDS flags!");
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}
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if ((flags & pitchAndLinear) == pitchAndLinear)
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{
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throw new NotSupportedException("Invalid DDS flags!");
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}
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height = reader.ReadInt32();
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width = reader.ReadInt32();
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reader.ReadUInt32(); // dwPitchOrLinearSize, unused
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reader.ReadUInt32(); // dwDepth, unused
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levels = reader.ReadInt32();
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// "Reserved"
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reader.ReadBytes(4 * 11);
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// Format info
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uint formatSize = reader.ReadUInt32();
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if (formatSize != DDS_PIXFMTSIZE)
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{
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throw new NotSupportedException("Bogus PIXFMTSIZE!");
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}
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uint formatFlags = reader.ReadUInt32();
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uint formatFourCC = reader.ReadUInt32();
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uint formatRGBBitCount = reader.ReadUInt32();
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uint formatRBitMask = reader.ReadUInt32();
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uint formatGBitMask = reader.ReadUInt32();
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uint formatBBitMask = reader.ReadUInt32();
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uint formatABitMask = reader.ReadUInt32();
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// dwCaps "stuff"
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uint caps = reader.ReadUInt32();
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if ((caps & DDSCAPS_TEXTURE) == 0)
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{
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throw new NotSupportedException("Not a texture!");
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}
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isCube = false;
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uint caps2 = reader.ReadUInt32();
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if (caps2 != 0)
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{
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if ((caps2 & DDSCAPS2_CUBEMAP) == DDSCAPS2_CUBEMAP)
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{
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isCube = true;
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}
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else
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{
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throw new NotSupportedException("Invalid caps2!");
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}
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}
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reader.ReadUInt32(); // dwCaps3, unused
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reader.ReadUInt32(); // dwCaps4, unused
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// "Reserved"
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reader.ReadUInt32();
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// Mipmap sanity check
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if ((caps & DDSCAPS_MIPMAP) != DDSCAPS_MIPMAP)
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{
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levels = 1;
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}
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// Determine texture format
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if ((formatFlags & DDPF_FOURCC) == DDPF_FOURCC)
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{
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switch (formatFourCC)
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{
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case 0x71: // D3DFMT_A16B16G16R16F
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format = TextureFormat.R16G16B16A16_SFLOAT;
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break;
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case 0x74: // D3DFMT_A32B32G32R32F
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format = TextureFormat.R32G32B32A32_SFLOAT;
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break;
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case FOURCC_DXT1:
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format = TextureFormat.BC1;
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break;
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case FOURCC_DXT3:
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format = TextureFormat.BC2;
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break;
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case FOURCC_DXT5:
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format = TextureFormat.BC3;
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break;
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case FOURCC_DX10:
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// If the fourCC is DX10, there is an extra header with additional format information.
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uint dxgiFormat = reader.ReadUInt32();
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// These values are taken from the DXGI_FORMAT enum.
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switch (dxgiFormat)
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{
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case 2:
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format = TextureFormat.R32G32B32A32_SFLOAT;
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break;
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case 10:
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format = TextureFormat.R16G16B16A16_SFLOAT;
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break;
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case 71:
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format = TextureFormat.BC1;
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break;
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case 74:
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format = TextureFormat.BC2;
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break;
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case 77:
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format = TextureFormat.BC3;
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break;
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case 98:
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format = TextureFormat.BC7;
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break;
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default:
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throw new NotSupportedException(
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"Unsupported DDS texture format"
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);
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}
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uint resourceDimension = reader.ReadUInt32();
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// These values are taken from the D3D10_RESOURCE_DIMENSION enum.
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switch (resourceDimension)
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{
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case 0: // Unknown
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case 1: // Buffer
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throw new NotSupportedException(
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"Unsupported DDS texture format"
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);
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default:
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break;
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}
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/*
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* This flag seemingly only indicates if the texture is a cube map.
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* This is already determined above. Cool!
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*/
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uint miscFlag = reader.ReadUInt32();
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/*
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* Indicates the number of elements in the texture array.
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* We don't support texture arrays so just throw if it's greater than 1.
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*/
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uint arraySize = reader.ReadUInt32();
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if (arraySize > 1)
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{
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throw new NotSupportedException(
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"Unsupported DDS texture format"
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);
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}
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reader.ReadUInt32(); // reserved
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break;
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default:
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throw new NotSupportedException(
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"Unsupported DDS texture format"
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);
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}
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}
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else if ((formatFlags & DDPF_RGB) == DDPF_RGB)
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{
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if ( formatRGBBitCount != 32 ||
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formatRBitMask != 0x00FF0000 ||
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formatGBitMask != 0x0000FF00 ||
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formatBBitMask != 0x000000FF ||
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formatABitMask != 0xFF000000 )
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{
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throw new NotSupportedException(
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"Unsupported DDS texture format"
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);
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}
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format = TextureFormat.B8G8R8A8;
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}
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else
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{
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throw new NotSupportedException(
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"Unsupported DDS texture format"
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);
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}
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}
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private static int CalculateDDSLevelSize(
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int width,
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int height,
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TextureFormat format
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) {
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if (format == TextureFormat.R8G8B8A8)
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{
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return (((width * 32) + 7) / 8) * height;
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}
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else if (format == TextureFormat.R16G16B16A16_SFLOAT)
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{
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return (((width * 64) + 7) / 8) * height;
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}
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else if (format == TextureFormat.R32G32B32A32_SFLOAT)
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||||
{
|
||||
return (((width * 128) + 7) / 8) * height;
|
||||
}
|
||||
else
|
||||
{
|
||||
int blockSize = 16;
|
||||
if (format == TextureFormat.BC1)
|
||||
{
|
||||
blockSize = 8;
|
||||
}
|
||||
width = System.Math.Max(width, 1);
|
||||
height = System.Math.Max(height, 1);
|
||||
return (
|
||||
((width + 3) / 4) *
|
||||
((height + 3) / 4) *
|
||||
blockSize
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
public static uint BytesPerPixel(TextureFormat format)
|
||||
{
|
||||
switch (format)
|
||||
|
|
@ -481,6 +213,21 @@ namespace MoonWorks.Graphics
|
|||
}
|
||||
}
|
||||
|
||||
public static uint TexelSize(TextureFormat format)
|
||||
{
|
||||
switch (format)
|
||||
{
|
||||
case TextureFormat.BC2:
|
||||
case TextureFormat.BC3:
|
||||
case TextureFormat.BC7:
|
||||
return 16;
|
||||
case TextureFormat.BC1:
|
||||
return 8;
|
||||
default:
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
public static uint BlockSizeSquared(TextureFormat format)
|
||||
{
|
||||
switch (format)
|
||||
|
|
|
|||
Loading…
Reference in New Issue