/* Copyright 2019-2020 The Khronos Group Inc. */ /* SPDX-License-Identifier: Apache-2.0 */ /***************************** Do not edit. ***************************** Automatically generated by makedfd2vk.pl. *************************************************************************/ if (KHR_DFDVAL(dfd + 1, MODEL) == KHR_DF_MODEL_RGBSDA || KHR_DFDVAL(dfd + 1, MODEL) == KHR_DF_MODEL_YUVSDA) { enum InterpretDFDResult r; InterpretedDFDChannel R = {0,0}; InterpretedDFDChannel G = {0,0}; InterpretedDFDChannel B = {0,0}; InterpretedDFDChannel A = {0,0}; /* interpretDFD channel overloadings for YUVSDA formats. These are * different from the mapping used by Vulkan. */ #define Y1 R #define Y2 A #define CB G #define U G #define CR B #define V B uint32_t wordBytes; /* Special case exponent format */ if (KHR_DFDSAMPLECOUNT(dfd + 1) == 6 && ((KHR_DFDSVAL((dfd + 1), 1, QUALIFIERS) & KHR_DF_SAMPLE_DATATYPE_EXPONENT) > 0)) { /* The only format we expect to be encoded like this. */ return VK_FORMAT_E5B9G9R9_UFLOAT_PACK32; } /* Special case depth formats (assumed little-endian) */ if (KHR_DFDSVAL((dfd + 1), 0, CHANNELID) == KHR_DF_CHANNEL_RGBSDA_DEPTH) { if (KHR_DFDSAMPLECOUNT((dfd + 1)) == 1) { if (KHR_DFDSVAL((dfd + 1), 0, BITLENGTH) == 16-1) return VK_FORMAT_D16_UNORM; if (KHR_DFDSVAL((dfd + 1), 0, BITLENGTH) == 24-1) return VK_FORMAT_X8_D24_UNORM_PACK32; return VK_FORMAT_D32_SFLOAT; } else { if (KHR_DFDSVAL((dfd + 1), 0, BITLENGTH) == 16-1) return VK_FORMAT_D16_UNORM_S8_UINT; if (KHR_DFDSVAL((dfd + 1), 0, BITLENGTH) == 24-1) return VK_FORMAT_D24_UNORM_S8_UINT; return VK_FORMAT_D32_SFLOAT_S8_UINT; } } if (KHR_DFDSVAL((dfd + 1), 0, CHANNELID) == KHR_DF_CHANNEL_RGBSDA_STENCIL) { return VK_FORMAT_S8_UINT; } r = interpretDFD(dfd, &R, &G, &B, &A, &wordBytes); if (r & i_UNSUPPORTED_ERROR_BIT) return VK_FORMAT_UNDEFINED; if (r & i_PACKED_FORMAT_BIT) { if (wordBytes == 1) return VK_FORMAT_R4G4_UNORM_PACK8; else if (wordBytes == 2) { /* PACK16 */ if (A.size == 4) { if (R.offset == 12) return VK_FORMAT_R4G4B4A4_UNORM_PACK16; else if (B.offset == 12) return VK_FORMAT_B4G4R4A4_UNORM_PACK16; else if (A.offset == 12) { if (R.offset == 8) return VK_FORMAT_A4R4G4B4_UNORM_PACK16; else return VK_FORMAT_A4B4G4R4_UNORM_PACK16; } } else if (G.size == 0 && B.size == 0 && A.size == 0) { /* One channel */ if (R.size == 10) return VK_FORMAT_R10X6_UNORM_PACK16; else if (R.size ==12) return VK_FORMAT_R12X4_UNORM_PACK16; } else if (A.size == 0) { /* Three channels */ if (B.offset == 0) return VK_FORMAT_R5G6B5_UNORM_PACK16; else return VK_FORMAT_B5G6R5_UNORM_PACK16; } else { /* Four channels, one-bit alpha */ if (B.offset == 0) return VK_FORMAT_A1R5G5B5_UNORM_PACK16; if (B.offset == 1) return VK_FORMAT_R5G5B5A1_UNORM_PACK16; if (B.offset == 10) return VK_FORMAT_A1B5G5R5_UNORM_PACK16_KHR; return VK_FORMAT_B5G5R5A1_UNORM_PACK16; } } else if (wordBytes == 4) { /* PACK32 or 2PACK16 */ if (A.size == 8) { if ((r & i_SRGB_FORMAT_BIT)) return VK_FORMAT_A8B8G8R8_SRGB_PACK32; if ((r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_A8B8G8R8_UNORM_PACK32; if ((r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_A8B8G8R8_SNORM_PACK32; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_A8B8G8R8_UINT_PACK32; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_A8B8G8R8_SINT_PACK32; } else if (A.size == 2 && B.offset == 0) { if ((r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_A2R10G10B10_UNORM_PACK32; if ((r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_A2R10G10B10_SNORM_PACK32; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_A2R10G10B10_UINT_PACK32; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_A2R10G10B10_SINT_PACK32; } else if (A.size == 2 && R.offset == 0) { if ((r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_A2B10G10R10_UNORM_PACK32; if ((r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_A2B10G10R10_SNORM_PACK32; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_A2B10G10R10_UINT_PACK32; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_A2B10G10R10_SINT_PACK32; } else if (R.size == 11) { return VK_FORMAT_B10G11R11_UFLOAT_PACK32; } else if (R.size == 10 && G.size == 10 && B.size == 0) { return VK_FORMAT_R10X6G10X6_UNORM_2PACK16; } else if (R.size == 12 && G.size == 12 && B.size == 0) { return VK_FORMAT_R12X4G12X4_UNORM_2PACK16; } } else if (wordBytes == 8) { /* 4PACK16 */ if (r & i_YUVSDA_FORMAT_BIT) { /* In Vulkan G = Y, R = Cr, B = Cb. */ if (Y1.size == 10 && Y1.offset == 6 && Y2.size == 10 && Y2.offset == 38) return VK_FORMAT_G10X6B10X6G10X6R10X6_422_UNORM_4PACK16; if (Y1.size == 10 && Y1.offset == 22 && Y2.size == 10 && Y2.offset == 54) return VK_FORMAT_B10X6G10X6R10X6G10X6_422_UNORM_4PACK16; if (Y1.size == 12 && Y1.offset == 4 && Y2.size == 12 && Y2.offset == 36) return VK_FORMAT_G12X4B12X4G12X4R12X4_422_UNORM_4PACK16; if (Y1.size == 12 && Y1.offset == 20 && Y2.size == 12 && Y2.offset == 52) return VK_FORMAT_B12X4G12X4R12X4G12X4_422_UNORM_4PACK16; } else { if (R.size == 10) return VK_FORMAT_R10X6G10X6B10X6A10X6_UNORM_4PACK16; else if (R.size == 12) return VK_FORMAT_R12X4G12X4B12X4A12X4_UNORM_4PACK16; } } } else { /* Not a packed format */ if (r & i_YUVSDA_FORMAT_BIT) { /* In Vulkan G = Y, R = Cr, B = Cb. */ if (Y1.size == 1 && Y1.offset == 0 && Y2.size == 1 && Y2.offset == 2) return VK_FORMAT_G8B8G8R8_422_UNORM; else if (Y1.size == 1 && Y1.offset == 1 && Y2.size == 1 && Y2.offset == 3) return VK_FORMAT_B8G8R8G8_422_UNORM; else if (Y1.size == 2 && Y1.offset == 0 && Y2.size == 2 && Y2.offset == 4) return VK_FORMAT_G16B16G16R16_422_UNORM; else if (Y1.size == 2 && Y1.offset == 2 && Y2.size == 2 && Y2.offset == 6) return VK_FORMAT_B16G16R16G16_422_UNORM; else return VK_FORMAT_UNDEFINED; // Until support added. } else { /* Not YUV */ if (wordBytes == 1) { if (A.size == 1 && R.size == 0 && G.size == 0 && B.size == 0 && (r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) { return VK_FORMAT_A8_UNORM_KHR; } if (A.size > 0) { /* 4 channels */ if (R.offset == 0) { /* RGBA */ if ((r & i_SRGB_FORMAT_BIT)) return VK_FORMAT_R8G8B8A8_SRGB; if ((r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R8G8B8A8_UNORM; if ((r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R8G8B8A8_SNORM; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R8G8B8A8_UINT; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R8G8B8A8_SINT; } else { /* BGRA */ if ((r & i_SRGB_FORMAT_BIT)) return VK_FORMAT_B8G8R8A8_SRGB; if ((r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_B8G8R8A8_UNORM; if ((r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_B8G8R8A8_SNORM; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_B8G8R8A8_UINT; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_B8G8R8A8_SINT; } } else if (B.size > 0) { /* 3 channels */ if (R.offset == 0) { /* RGB */ if ((r & i_SRGB_FORMAT_BIT)) return VK_FORMAT_R8G8B8_SRGB; if ((r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R8G8B8_UNORM; if ((r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R8G8B8_SNORM; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R8G8B8_UINT; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R8G8B8_SINT; } else { /* BGR */ if ((r & i_SRGB_FORMAT_BIT)) return VK_FORMAT_B8G8R8_SRGB; if ((r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_B8G8R8_UNORM; if ((r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_B8G8R8_SNORM; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_B8G8R8_UINT; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_B8G8R8_SINT; } } else if (G.size > 0) { /* 2 channels */ if ((r & i_SRGB_FORMAT_BIT)) return VK_FORMAT_R8G8_SRGB; if ((r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R8G8_UNORM; if ((r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R8G8_SNORM; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R8G8_UINT; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R8G8_SINT; } else { /* 1 channel */ if ((r & i_SRGB_FORMAT_BIT)) return VK_FORMAT_R8_SRGB; if ((r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R8_UNORM; if ((r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R8_SNORM; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R8_UINT; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R8_SINT; } } else if (wordBytes == 2) { if ((r & i_FIXED_FORMAT_BIT) && R.size == 2 && G.size == 2) return VK_FORMAT_R16G16_S10_5_NV; if (A.size > 0) { /* 4 channels */ if (R.offset == 0) { /* RGBA */ if ((r & i_FLOAT_FORMAT_BIT)) return VK_FORMAT_R16G16B16A16_SFLOAT; if ((r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R16G16B16A16_UNORM; if ((r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R16G16B16A16_SNORM; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R16G16B16A16_UINT; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R16G16B16A16_SINT; } else { /* BGRA */ } } else if (B.size > 0) { /* 3 channels */ if (R.offset == 0) { /* RGB */ if ((r & i_FLOAT_FORMAT_BIT)) return VK_FORMAT_R16G16B16_SFLOAT; if ((r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R16G16B16_UNORM; if ((r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R16G16B16_SNORM; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R16G16B16_UINT; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R16G16B16_SINT; } else { /* BGR */ } } else if (G.size > 0) { /* 2 channels */ if ((r & i_FLOAT_FORMAT_BIT)) return VK_FORMAT_R16G16_SFLOAT; if ((r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R16G16_UNORM; if ((r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R16G16_SNORM; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R16G16_UINT; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R16G16_SINT; } else { /* 1 channel */ if ((r & i_FLOAT_FORMAT_BIT)) return VK_FORMAT_R16_SFLOAT; if ((r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R16_UNORM; if ((r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R16_SNORM; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R16_UINT; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R16_SINT; } } else if (wordBytes == 4) { if (A.size > 0) { /* 4 channels */ if (R.offset == 0) { /* RGBA */ if ((r & i_FLOAT_FORMAT_BIT)) return VK_FORMAT_R32G32B32A32_SFLOAT; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R32G32B32A32_UINT; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R32G32B32A32_SINT; } else { /* BGRA */ } } else if (B.size > 0) { /* 3 channels */ if (R.offset == 0) { /* RGB */ if ((r & i_FLOAT_FORMAT_BIT)) return VK_FORMAT_R32G32B32_SFLOAT; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R32G32B32_UINT; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R32G32B32_SINT; } else { /* BGR */ } } else if (G.size > 0) { /* 2 channels */ if ((r & i_FLOAT_FORMAT_BIT)) return VK_FORMAT_R32G32_SFLOAT; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R32G32_UINT; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R32G32_SINT; } else { /* 1 channel */ if ((r & i_FLOAT_FORMAT_BIT)) return VK_FORMAT_R32_SFLOAT; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R32_UINT; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R32_SINT; } } else if (wordBytes == 8) { if (A.size > 0) { /* 4 channels */ if (R.offset == 0) { /* RGBA */ if ((r & i_FLOAT_FORMAT_BIT)) return VK_FORMAT_R64G64B64A64_SFLOAT; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R64G64B64A64_UINT; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R64G64B64A64_SINT; } else { /* BGRA */ } } else if (B.size > 0) { /* 3 channels */ if (R.offset == 0) { /* RGB */ if ((r & i_FLOAT_FORMAT_BIT)) return VK_FORMAT_R64G64B64_SFLOAT; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R64G64B64_UINT; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R64G64B64_SINT; } else { /* BGR */ } } else if (G.size > 0) { /* 2 channels */ if ((r & i_FLOAT_FORMAT_BIT)) return VK_FORMAT_R64G64_SFLOAT; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R64G64_UINT; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R64G64_SINT; } else { /* 1 channel */ if ((r & i_FLOAT_FORMAT_BIT)) return VK_FORMAT_R64_SFLOAT; if (!(r & i_NORMALIZED_FORMAT_BIT) && !(r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R64_UINT; if (!(r & i_NORMALIZED_FORMAT_BIT) && (r & i_SIGNED_FORMAT_BIT)) return VK_FORMAT_R64_SINT; } } } } } else if (KHR_DFDVAL((dfd + 1), MODEL) >= 128) { const uint32_t *bdb = dfd + 1; switch (KHR_DFDVAL(bdb, MODEL)) { case KHR_DF_MODEL_BC1A: if (KHR_DFDSVAL(bdb, 0, CHANNELID) == KHR_DF_CHANNEL_BC1A_COLOR) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_BC1_RGB_UNORM_BLOCK; } else { return VK_FORMAT_BC1_RGB_SRGB_BLOCK; } } else { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_BC1_RGBA_UNORM_BLOCK; } else { return VK_FORMAT_BC1_RGBA_SRGB_BLOCK; } } case KHR_DF_MODEL_BC2: if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_BC2_UNORM_BLOCK; } else { return VK_FORMAT_BC2_SRGB_BLOCK; } case KHR_DF_MODEL_BC3: if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_BC3_UNORM_BLOCK; } else { return VK_FORMAT_BC3_SRGB_BLOCK; } case KHR_DF_MODEL_BC4: if (!(KHR_DFDSVAL(bdb, 0, QUALIFIERS) & KHR_DF_SAMPLE_DATATYPE_SIGNED)) { return VK_FORMAT_BC4_UNORM_BLOCK; } else { return VK_FORMAT_BC4_SNORM_BLOCK; } case KHR_DF_MODEL_BC5: if (!(KHR_DFDSVAL(bdb, 0, QUALIFIERS) & KHR_DF_SAMPLE_DATATYPE_SIGNED)) { return VK_FORMAT_BC5_UNORM_BLOCK; } else { return VK_FORMAT_BC5_SNORM_BLOCK; } case KHR_DF_MODEL_BC6H: if (!(KHR_DFDSVAL(bdb, 0, QUALIFIERS) & KHR_DF_SAMPLE_DATATYPE_SIGNED)) { return VK_FORMAT_BC6H_UFLOAT_BLOCK; } else { return VK_FORMAT_BC6H_SFLOAT_BLOCK; } case KHR_DF_MODEL_BC7: if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_BC7_UNORM_BLOCK; } else { return VK_FORMAT_BC7_SRGB_BLOCK; } case KHR_DF_MODEL_ETC2: if (KHR_DFDSVAL(bdb, 0, CHANNELID) == KHR_DF_CHANNEL_ETC2_COLOR) { if (KHR_DFDVAL(bdb, DESCRIPTORBLOCKSIZE) == 40) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK; } else { return VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK; } } else { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK; } else { return VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK; } } } else if (KHR_DFDSVAL(bdb, 0, CHANNELID) == KHR_DF_CHANNEL_ETC2_ALPHA) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK; } else { return VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK; } } else if (KHR_DFDVAL(bdb, DESCRIPTORBLOCKSIZE) == 40) { if (!(KHR_DFDSVAL(bdb, 0, QUALIFIERS) & KHR_DF_SAMPLE_DATATYPE_SIGNED)) { return VK_FORMAT_EAC_R11_UNORM_BLOCK; } else { return VK_FORMAT_EAC_R11_SNORM_BLOCK; } } else { if (!(KHR_DFDSVAL(bdb, 0, QUALIFIERS) & KHR_DF_SAMPLE_DATATYPE_SIGNED)) { return VK_FORMAT_EAC_R11G11_UNORM_BLOCK; } else { return VK_FORMAT_EAC_R11G11_SNORM_BLOCK; } } case KHR_DF_MODEL_ASTC: if (!(KHR_DFDSVAL(bdb, 0, QUALIFIERS) & KHR_DF_SAMPLE_DATATYPE_FLOAT)) { if (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 0) { if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 3) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 3)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_4x4_UNORM_BLOCK; } else { return VK_FORMAT_ASTC_4x4_SRGB_BLOCK; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 4) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 3)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_5x4_UNORM_BLOCK; } else { return VK_FORMAT_ASTC_5x4_SRGB_BLOCK; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 4) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 4)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_5x5_UNORM_BLOCK; } else { return VK_FORMAT_ASTC_5x5_SRGB_BLOCK; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 5) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 4)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_6x5_UNORM_BLOCK; } else { return VK_FORMAT_ASTC_6x5_SRGB_BLOCK; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 5) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 5)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_6x6_UNORM_BLOCK; } else { return VK_FORMAT_ASTC_6x6_SRGB_BLOCK; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 7) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 4)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_8x5_UNORM_BLOCK; } else { return VK_FORMAT_ASTC_8x5_SRGB_BLOCK; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 7) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 5)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_8x6_UNORM_BLOCK; } else { return VK_FORMAT_ASTC_8x6_SRGB_BLOCK; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 7) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 7)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_8x8_UNORM_BLOCK; } else { return VK_FORMAT_ASTC_8x8_SRGB_BLOCK; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 9) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 4)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_10x5_UNORM_BLOCK; } else { return VK_FORMAT_ASTC_10x5_SRGB_BLOCK; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 9) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 5)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_10x6_UNORM_BLOCK; } else { return VK_FORMAT_ASTC_10x6_SRGB_BLOCK; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 9) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 7)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_10x8_UNORM_BLOCK; } else { return VK_FORMAT_ASTC_10x8_SRGB_BLOCK; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 9) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 9)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_10x10_UNORM_BLOCK; } else { return VK_FORMAT_ASTC_10x10_SRGB_BLOCK; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 11) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 9)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_12x10_UNORM_BLOCK; } else { return VK_FORMAT_ASTC_12x10_SRGB_BLOCK; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 11) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 11)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_12x12_UNORM_BLOCK; } else { return VK_FORMAT_ASTC_12x12_SRGB_BLOCK; } } } else { if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 2) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 2) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 2)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_3x3x3_UNORM_BLOCK_EXT; } else { return VK_FORMAT_ASTC_3x3x3_SRGB_BLOCK_EXT; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 3) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 2) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 2)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_4x3x3_UNORM_BLOCK_EXT; } else { return VK_FORMAT_ASTC_4x3x3_SRGB_BLOCK_EXT; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 3) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 3) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 2)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_4x4x3_UNORM_BLOCK_EXT; } else { return VK_FORMAT_ASTC_4x4x3_SRGB_BLOCK_EXT; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 3) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 3) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 3)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_4x4x4_UNORM_BLOCK_EXT; } else { return VK_FORMAT_ASTC_4x4x4_SRGB_BLOCK_EXT; } } if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 4) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 3) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 3)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_5x4x4_UNORM_BLOCK_EXT; } else { return VK_FORMAT_ASTC_5x4x4_SRGB_BLOCK_EXT; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 4) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 4) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 3)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_5x5x4_UNORM_BLOCK_EXT; } else { return VK_FORMAT_ASTC_5x5x4_SRGB_BLOCK_EXT; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 4) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 4) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 4)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_5x5x5_UNORM_BLOCK_EXT; } else { return VK_FORMAT_ASTC_5x5x5_SRGB_BLOCK_EXT; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 5) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 4) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 4)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_6x5x5_UNORM_BLOCK_EXT; } else { return VK_FORMAT_ASTC_6x5x5_SRGB_BLOCK_EXT; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 5) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 5) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 4)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_6x6x5_UNORM_BLOCK_EXT; } else { return VK_FORMAT_ASTC_6x6x5_SRGB_BLOCK_EXT; } } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 5) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 5) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 5)) { if (KHR_DFDVAL(bdb, TRANSFER) != KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_ASTC_6x6x6_UNORM_BLOCK_EXT; } else { return VK_FORMAT_ASTC_6x6x6_SRGB_BLOCK_EXT; } } } } else { if (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 0) { if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 3) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 3)) { return VK_FORMAT_ASTC_4x4_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 4) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 3)) { return VK_FORMAT_ASTC_5x4_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 4) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 4)) { return VK_FORMAT_ASTC_5x5_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 5) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 4)) { return VK_FORMAT_ASTC_6x5_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 5) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 5)) { return VK_FORMAT_ASTC_6x6_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 7) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 4)) { return VK_FORMAT_ASTC_8x5_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 7) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 5)) { return VK_FORMAT_ASTC_8x6_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 7) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 7)) { return VK_FORMAT_ASTC_8x8_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 9) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 4)) { return VK_FORMAT_ASTC_10x5_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 9) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 5)) { return VK_FORMAT_ASTC_10x6_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 9) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 7)) { return VK_FORMAT_ASTC_10x8_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 9) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 9)) { return VK_FORMAT_ASTC_10x10_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 11) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 9)) { return VK_FORMAT_ASTC_12x10_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 11) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 11)) { return VK_FORMAT_ASTC_12x12_SFLOAT_BLOCK_EXT; } } else { if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 2) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 2) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 2)) { return VK_FORMAT_ASTC_3x3x3_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 3) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 2) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 2)) { return VK_FORMAT_ASTC_4x3x3_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 3) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 2) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 2)) { return VK_FORMAT_ASTC_4x3x3_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 3) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 3) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 2)) { return VK_FORMAT_ASTC_4x4x3_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 3) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 3) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 3)) { return VK_FORMAT_ASTC_4x4x4_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 4) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 3) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 3)) { return VK_FORMAT_ASTC_5x4x4_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 4) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 4) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 3)) { return VK_FORMAT_ASTC_5x5x4_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 4) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 4) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 4)) { return VK_FORMAT_ASTC_5x5x5_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 5) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 4) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 4)) { return VK_FORMAT_ASTC_6x5x5_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 5) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 5) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 4)) { return VK_FORMAT_ASTC_6x6x5_SFLOAT_BLOCK_EXT; } else if ((KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 5) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION1) == 5) && (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION2) == 5)) { return VK_FORMAT_ASTC_6x6x6_SFLOAT_BLOCK_EXT; } } } break; case KHR_DF_MODEL_PVRTC: if (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 3) { if (KHR_DFDVAL(bdb, TRANSFER) == KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_PVRTC1_4BPP_SRGB_BLOCK_IMG; } else { return VK_FORMAT_PVRTC1_4BPP_UNORM_BLOCK_IMG; } } else { if (KHR_DFDVAL(bdb, TRANSFER) == KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_PVRTC1_2BPP_SRGB_BLOCK_IMG; } else { return VK_FORMAT_PVRTC1_2BPP_UNORM_BLOCK_IMG; } } case KHR_DF_MODEL_PVRTC2: if (KHR_DFDVAL(bdb, TEXELBLOCKDIMENSION0) == 3) { if (KHR_DFDVAL(bdb, TRANSFER) == KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_PVRTC2_4BPP_SRGB_BLOCK_IMG; } else { return VK_FORMAT_PVRTC2_4BPP_UNORM_BLOCK_IMG; } } else { if (KHR_DFDVAL(bdb, TRANSFER) == KHR_DF_TRANSFER_SRGB) { return VK_FORMAT_PVRTC2_2BPP_SRGB_BLOCK_IMG; } else { return VK_FORMAT_PVRTC2_2BPP_UNORM_BLOCK_IMG; } } default: ; } } return VK_FORMAT_UNDEFINED; /* Drop-through for unmatched formats. */