1828 lines
70 KiB
C++
1828 lines
70 KiB
C++
//-------------------------------------------------------------------------------------
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// DirectXTexDDS.cpp
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//
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// DirectX Texture Library - Microsoft DirectDraw Surface (DDS) file format reader/writer
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
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// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
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// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
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// PARTICULAR PURPOSE.
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// http://go.microsoft.com/fwlink/?LinkId=248926
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//-------------------------------------------------------------------------------------
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#include "directxtexp.h"
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#include "dds.h"
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namespace DirectX
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{
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//-------------------------------------------------------------------------------------
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// Legacy format mapping table (used for DDS files without 'DX10' extended header)
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//-------------------------------------------------------------------------------------
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enum CONVERSION_FLAGS
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{
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CONV_FLAGS_NONE = 0x0,
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CONV_FLAGS_EXPAND = 0x1, // Conversion requires expanded pixel size
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CONV_FLAGS_NOALPHA = 0x2, // Conversion requires setting alpha to known value
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CONV_FLAGS_SWIZZLE = 0x4, // BGR/RGB order swizzling required
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CONV_FLAGS_PAL8 = 0x8, // Has an 8-bit palette
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CONV_FLAGS_888 = 0x10, // Source is an 8:8:8 (24bpp) format
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CONV_FLAGS_565 = 0x20, // Source is a 5:6:5 (16bpp) format
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CONV_FLAGS_5551 = 0x40, // Source is a 5:5:5:1 (16bpp) format
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CONV_FLAGS_4444 = 0x80, // Source is a 4:4:4:4 (16bpp) format
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CONV_FLAGS_44 = 0x100, // Source is a 4:4 (8bpp) format
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CONV_FLAGS_332 = 0x200, // Source is a 3:3:2 (8bpp) format
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CONV_FLAGS_8332 = 0x400, // Source is a 8:3:3:2 (16bpp) format
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CONV_FLAGS_A8P8 = 0x800, // Has an 8-bit palette with an alpha channel
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CONV_FLAGS_DX10 = 0x10000, // Has the 'DX10' extension header
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CONV_FLAGS_PMALPHA = 0x20000, // Contains premultiplied alpha data
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CONV_FLAGS_L8 = 0x40000, // Source is a 8 luminance format
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CONV_FLAGS_L16 = 0x80000, // Source is a 16 luminance format
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CONV_FLAGS_A8L8 = 0x100000, // Source is a 8:8 luminance format
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};
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struct LegacyDDS
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{
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DXGI_FORMAT format;
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DWORD convFlags;
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DDS_PIXELFORMAT ddpf;
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};
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const LegacyDDS g_LegacyDDSMap[] =
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{
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{ DXGI_FORMAT_BC1_UNORM, CONV_FLAGS_NONE, DDSPF_DXT1 }, // D3DFMT_DXT1
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{ DXGI_FORMAT_BC2_UNORM, CONV_FLAGS_NONE, DDSPF_DXT3 }, // D3DFMT_DXT3
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{ DXGI_FORMAT_BC3_UNORM, CONV_FLAGS_NONE, DDSPF_DXT5 }, // D3DFMT_DXT5
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{ DXGI_FORMAT_BC2_UNORM, CONV_FLAGS_PMALPHA, DDSPF_DXT2 }, // D3DFMT_DXT2
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{ DXGI_FORMAT_BC3_UNORM, CONV_FLAGS_PMALPHA, DDSPF_DXT4 }, // D3DFMT_DXT4
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{ DXGI_FORMAT_BC4_UNORM, CONV_FLAGS_NONE, DDSPF_BC4_UNORM },
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{ DXGI_FORMAT_BC4_SNORM, CONV_FLAGS_NONE, DDSPF_BC4_SNORM },
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{ DXGI_FORMAT_BC5_UNORM, CONV_FLAGS_NONE, DDSPF_BC5_UNORM },
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{ DXGI_FORMAT_BC5_SNORM, CONV_FLAGS_NONE, DDSPF_BC5_SNORM },
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{ DXGI_FORMAT_BC4_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC( 'A', 'T', 'I', '1' ), 0, 0, 0, 0, 0 } },
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{ DXGI_FORMAT_BC5_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC( 'A', 'T', 'I', '2' ), 0, 0, 0, 0, 0 } },
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{ DXGI_FORMAT_R8G8_B8G8_UNORM, CONV_FLAGS_NONE, DDSPF_R8G8_B8G8 }, // D3DFMT_R8G8_B8G8
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{ DXGI_FORMAT_G8R8_G8B8_UNORM, CONV_FLAGS_NONE, DDSPF_G8R8_G8B8 }, // D3DFMT_G8R8_G8B8
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{ DXGI_FORMAT_B8G8R8A8_UNORM, CONV_FLAGS_NONE, DDSPF_A8R8G8B8 }, // D3DFMT_A8R8G8B8 (uses DXGI 1.1 format)
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{ DXGI_FORMAT_B8G8R8X8_UNORM, CONV_FLAGS_NONE, DDSPF_X8R8G8B8 }, // D3DFMT_X8R8G8B8 (uses DXGI 1.1 format)
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{ DXGI_FORMAT_R8G8B8A8_UNORM, CONV_FLAGS_NONE, DDSPF_A8B8G8R8 }, // D3DFMT_A8B8G8R8
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{ DXGI_FORMAT_R8G8B8A8_UNORM, CONV_FLAGS_NOALPHA, DDSPF_X8B8G8R8 }, // D3DFMT_X8B8G8R8
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{ DXGI_FORMAT_R16G16_UNORM, CONV_FLAGS_NONE, DDSPF_G16R16 }, // D3DFMT_G16R16
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{ DXGI_FORMAT_R10G10B10A2_UNORM, CONV_FLAGS_SWIZZLE, { sizeof(DDS_PIXELFORMAT), DDS_RGB, 0, 32, 0x000003ff, 0x000ffc00, 0x3ff00000, 0xc0000000 } }, // D3DFMT_A2R10G10B10 (D3DX reversal issue workaround)
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{ DXGI_FORMAT_R10G10B10A2_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_RGB, 0, 32, 0x3ff00000, 0x000ffc00, 0x000003ff, 0xc0000000 } }, // D3DFMT_A2B10G10R10 (D3DX reversal issue workaround)
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{ DXGI_FORMAT_R8G8B8A8_UNORM, CONV_FLAGS_EXPAND
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| CONV_FLAGS_NOALPHA
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| CONV_FLAGS_888, DDSPF_R8G8B8 }, // D3DFMT_R8G8B8
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{ DXGI_FORMAT_B5G6R5_UNORM, CONV_FLAGS_565, DDSPF_R5G6B5 }, // D3DFMT_R5G6B5
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{ DXGI_FORMAT_B5G5R5A1_UNORM, CONV_FLAGS_5551, DDSPF_A1R5G5B5 }, // D3DFMT_A1R5G5B5
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{ DXGI_FORMAT_B5G5R5A1_UNORM, CONV_FLAGS_5551
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| CONV_FLAGS_NOALPHA, { sizeof(DDS_PIXELFORMAT), DDS_RGB, 0, 16, 0x7c00, 0x03e0, 0x001f, 0x0000 } }, // D3DFMT_X1R5G5B5
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{ DXGI_FORMAT_R8G8B8A8_UNORM, CONV_FLAGS_EXPAND
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| CONV_FLAGS_8332, { sizeof(DDS_PIXELFORMAT), DDS_RGB, 0, 16, 0x00e0, 0x001c, 0x0003, 0xff00 } }, // D3DFMT_A8R3G3B2
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{ DXGI_FORMAT_B5G6R5_UNORM, CONV_FLAGS_EXPAND
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| CONV_FLAGS_332, { sizeof(DDS_PIXELFORMAT), DDS_RGB, 0, 8, 0xe0, 0x1c, 0x03, 0x00 } }, // D3DFMT_R3G3B2
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{ DXGI_FORMAT_R8_UNORM, CONV_FLAGS_NONE, DDSPF_L8 }, // D3DFMT_L8
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{ DXGI_FORMAT_R16_UNORM, CONV_FLAGS_NONE, DDSPF_L16 }, // D3DFMT_L16
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{ DXGI_FORMAT_R8G8_UNORM, CONV_FLAGS_NONE, DDSPF_A8L8 }, // D3DFMT_A8L8
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{ DXGI_FORMAT_A8_UNORM, CONV_FLAGS_NONE, DDSPF_A8 }, // D3DFMT_A8
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{ DXGI_FORMAT_R16G16B16A16_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, 36, 0, 0, 0, 0, 0 } }, // D3DFMT_A16B16G16R16
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{ DXGI_FORMAT_R16G16B16A16_SNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, 110, 0, 0, 0, 0, 0 } }, // D3DFMT_Q16W16V16U16
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{ DXGI_FORMAT_R16_FLOAT, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, 111, 0, 0, 0, 0, 0 } }, // D3DFMT_R16F
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{ DXGI_FORMAT_R16G16_FLOAT, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, 112, 0, 0, 0, 0, 0 } }, // D3DFMT_G16R16F
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{ DXGI_FORMAT_R16G16B16A16_FLOAT, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, 113, 0, 0, 0, 0, 0 } }, // D3DFMT_A16B16G16R16F
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{ DXGI_FORMAT_R32_FLOAT, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, 114, 0, 0, 0, 0, 0 } }, // D3DFMT_R32F
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{ DXGI_FORMAT_R32G32_FLOAT, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, 115, 0, 0, 0, 0, 0 } }, // D3DFMT_G32R32F
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{ DXGI_FORMAT_R32G32B32A32_FLOAT, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, 116, 0, 0, 0, 0, 0 } }, // D3DFMT_A32B32G32R32F
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{ DXGI_FORMAT_R32_FLOAT, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_RGB, 0, 32, 0xffffffff, 0x00000000, 0x00000000, 0x00000000 } }, // D3DFMT_R32F (D3DX uses FourCC 114 instead)
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{ DXGI_FORMAT_R8G8B8A8_UNORM, CONV_FLAGS_EXPAND
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| CONV_FLAGS_PAL8
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| CONV_FLAGS_A8P8, { sizeof(DDS_PIXELFORMAT), DDS_PAL8, 0, 16, 0, 0, 0, 0 } }, // D3DFMT_A8P8
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{ DXGI_FORMAT_R8G8B8A8_UNORM, CONV_FLAGS_EXPAND
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| CONV_FLAGS_PAL8, { sizeof(DDS_PIXELFORMAT), DDS_PAL8, 0, 8, 0, 0, 0, 0 } }, // D3DFMT_P8
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#ifdef DXGI_1_2_FORMATS
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{ DXGI_FORMAT_B4G4R4A4_UNORM, CONV_FLAGS_4444, DDSPF_A4R4G4B4 }, // D3DFMT_A4R4G4B4 (uses DXGI 1.2 format)
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{ DXGI_FORMAT_B4G4R4A4_UNORM, CONV_FLAGS_NOALPHA
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| CONV_FLAGS_4444, { sizeof(DDS_PIXELFORMAT), DDS_RGB, 0, 16, 0x0f00, 0x00f0, 0x000f, 0x0000 } }, // D3DFMT_X4R4G4B4 (uses DXGI 1.2 format)
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{ DXGI_FORMAT_B4G4R4A4_UNORM, CONV_FLAGS_EXPAND
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| CONV_FLAGS_44, { sizeof(DDS_PIXELFORMAT), DDS_LUMINANCE, 0, 8, 0x0f, 0x00, 0x00, 0xf0 } }, // D3DFMT_A4L4 (uses DXGI 1.2 format)
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#else // !DXGI_1_2_FORMATS
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{ DXGI_FORMAT_R8G8B8A8_UNORM, CONV_FLAGS_EXPAND
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| CONV_FLAGS_4444, DDSPF_A4R4G4B4 }, // D3DFMT_A4R4G4B4
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{ DXGI_FORMAT_R8G8B8A8_UNORM, CONV_FLAGS_EXPAND
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| CONV_FLAGS_NOALPHA
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| CONV_FLAGS_4444, { sizeof(DDS_PIXELFORMAT), DDS_RGB, 0, 16, 0x0f00, 0x00f0, 0x000f, 0x0000 } }, // D3DFMT_X4R4G4B4
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{ DXGI_FORMAT_R8G8B8A8_UNORM, CONV_FLAGS_EXPAND
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| CONV_FLAGS_44, { sizeof(DDS_PIXELFORMAT), DDS_LUMINANCE, 0, 8, 0x0f, 0x00, 0x00, 0xf0 } }, // D3DFMT_A4L4
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#endif
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};
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// Note that many common DDS reader/writers (including D3DX) swap the
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// the RED/BLUE masks for 10:10:10:2 formats. We assumme
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// below that the 'backwards' header mask is being used since it is most
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// likely written by D3DX. The more robust solution is to use the 'DX10'
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// header extension and specify the DXGI_FORMAT_R10G10B10A2_UNORM format directly
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// We do not support the following legacy Direct3D 9 formats:
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// BumpDuDv D3DFMT_V8U8, D3DFMT_Q8W8V8U8, D3DFMT_V16U16, D3DFMT_A2W10V10U10
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// BumpLuminance D3DFMT_L6V5U5, D3DFMT_X8L8V8U8
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// FourCC "UYVY" D3DFMT_UYVY
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// FourCC "YUY2" D3DFMT_YUY2
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// FourCC 117 D3DFMT_CxV8U8
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// ZBuffer D3DFMT_D16_LOCKABLE
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// FourCC 82 D3DFMT_D32F_LOCKABLE
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static DXGI_FORMAT _GetDXGIFormat( const DDS_PIXELFORMAT& ddpf, DWORD flags, _Inout_ DWORD& convFlags )
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{
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const size_t MAP_SIZE = sizeof(g_LegacyDDSMap) / sizeof(LegacyDDS);
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size_t index = 0;
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for( index = 0; index < MAP_SIZE; ++index )
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{
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const LegacyDDS* entry = &g_LegacyDDSMap[index];
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if ( ddpf.dwFlags & entry->ddpf.dwFlags )
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{
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if ( entry->ddpf.dwFlags & DDS_FOURCC )
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{
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if ( ddpf.dwFourCC == entry->ddpf.dwFourCC )
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break;
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}
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else if ( entry->ddpf.dwFlags & DDS_PAL8 )
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{
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if ( ddpf.dwRGBBitCount == entry->ddpf.dwRGBBitCount )
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break;
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}
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else if ( ddpf.dwRGBBitCount == entry->ddpf.dwRGBBitCount )
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{
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// RGB, RGBA, ALPHA, LUMINANCE
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if ( ddpf.dwRBitMask == entry->ddpf.dwRBitMask
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&& ddpf.dwGBitMask == entry->ddpf.dwGBitMask
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&& ddpf.dwBBitMask == entry->ddpf.dwBBitMask
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&& ddpf.dwABitMask == entry->ddpf.dwABitMask )
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break;
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}
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}
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}
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if ( index >= MAP_SIZE )
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return DXGI_FORMAT_UNKNOWN;
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DWORD cflags = g_LegacyDDSMap[index].convFlags;
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DXGI_FORMAT format = g_LegacyDDSMap[index].format;
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if ( (cflags & CONV_FLAGS_EXPAND) && (flags & DDS_FLAGS_NO_LEGACY_EXPANSION) )
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return DXGI_FORMAT_UNKNOWN;
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if ( (format == DXGI_FORMAT_R10G10B10A2_UNORM) && (flags & DDS_FLAGS_NO_R10B10G10A2_FIXUP) )
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{
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cflags ^= CONV_FLAGS_SWIZZLE;
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}
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convFlags = cflags;
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return format;
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}
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//-------------------------------------------------------------------------------------
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// Decodes DDS header including optional DX10 extended header
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//-------------------------------------------------------------------------------------
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static HRESULT _DecodeDDSHeader( _In_reads_bytes_(size) LPCVOID pSource, size_t size, DWORD flags, _Out_ TexMetadata& metadata,
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_Inout_ DWORD& convFlags )
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{
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if ( !pSource )
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return E_INVALIDARG;
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memset( &metadata, 0, sizeof(TexMetadata) );
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if ( size < (sizeof(DDS_HEADER) + sizeof(uint32_t)) )
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{
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return HRESULT_FROM_WIN32( ERROR_INVALID_DATA );
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}
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// DDS files always start with the same magic number ("DDS ")
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uint32_t dwMagicNumber = *reinterpret_cast<const uint32_t*>(pSource);
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if ( dwMagicNumber != DDS_MAGIC )
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{
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return E_FAIL;
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}
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auto pHeader = reinterpret_cast<const DDS_HEADER*>( (const uint8_t*)pSource + sizeof( uint32_t ) );
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// Verify header to validate DDS file
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if ( pHeader->dwSize != sizeof(DDS_HEADER)
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|| pHeader->ddspf.dwSize != sizeof(DDS_PIXELFORMAT) )
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{
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return E_FAIL;
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}
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metadata.mipLevels = pHeader->dwMipMapCount;
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if ( metadata.mipLevels == 0 )
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metadata.mipLevels = 1;
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// Check for DX10 extension
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if ( (pHeader->ddspf.dwFlags & DDS_FOURCC)
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&& (MAKEFOURCC( 'D', 'X', '1', '0' ) == pHeader->ddspf.dwFourCC) )
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{
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// Buffer must be big enough for both headers and magic value
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if ( size < ( sizeof(DDS_HEADER) + sizeof(uint32_t) + sizeof(DDS_HEADER_DXT10) ) )
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{
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return E_FAIL;
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}
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auto d3d10ext = reinterpret_cast<const DDS_HEADER_DXT10*>( (const uint8_t*)pSource + sizeof( uint32_t ) + sizeof(DDS_HEADER) );
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convFlags |= CONV_FLAGS_DX10;
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metadata.arraySize = d3d10ext->arraySize;
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if ( metadata.arraySize == 0 )
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{
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return HRESULT_FROM_WIN32( ERROR_INVALID_DATA );
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}
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metadata.format = d3d10ext->dxgiFormat;
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if ( !IsValid( metadata.format ) )
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{
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return HRESULT_FROM_WIN32( ERROR_INVALID_DATA );
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}
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static_assert( TEX_MISC_TEXTURECUBE == DDS_RESOURCE_MISC_TEXTURECUBE, "DDS header mismatch");
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metadata.miscFlags = d3d10ext->miscFlag & ~TEX_MISC_TEXTURECUBE;
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switch ( d3d10ext->resourceDimension )
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{
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case DDS_DIMENSION_TEXTURE1D:
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// D3DX writes 1D textures with a fixed Height of 1
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if ( (pHeader->dwFlags & DDS_HEIGHT) && pHeader->dwHeight != 1 )
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{
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return HRESULT_FROM_WIN32( ERROR_INVALID_DATA );
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}
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metadata.width = pHeader->dwWidth;
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metadata.height = 1;
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metadata.depth = 1;
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metadata.dimension = TEX_DIMENSION_TEXTURE1D;
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break;
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case DDS_DIMENSION_TEXTURE2D:
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if ( d3d10ext->miscFlag & DDS_RESOURCE_MISC_TEXTURECUBE )
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{
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metadata.miscFlags |= TEX_MISC_TEXTURECUBE;
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metadata.arraySize *= 6;
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}
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metadata.width = pHeader->dwWidth;
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metadata.height = pHeader->dwHeight;
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metadata.depth = 1;
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metadata.dimension = TEX_DIMENSION_TEXTURE2D;
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break;
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case DDS_DIMENSION_TEXTURE3D:
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if ( !(pHeader->dwFlags & DDS_HEADER_FLAGS_VOLUME) )
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{
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return HRESULT_FROM_WIN32( ERROR_INVALID_DATA );
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}
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if ( metadata.arraySize > 1 )
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return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
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metadata.width = pHeader->dwWidth;
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metadata.height = pHeader->dwHeight;
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metadata.depth = pHeader->dwDepth;
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metadata.dimension = TEX_DIMENSION_TEXTURE3D;
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break;
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default:
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return HRESULT_FROM_WIN32( ERROR_INVALID_DATA );
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}
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static_assert( TEX_MISC2_ALPHA_MODE_MASK == DDS_MISC_FLAGS2_ALPHA_MODE_MASK, "DDS header mismatch");
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static_assert( TEX_ALPHA_MODE_UNKNOWN == DDS_ALPHA_MODE_UNKNOWN, "DDS header mismatch");
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static_assert( TEX_ALPHA_MODE_STRAIGHT == DDS_ALPHA_MODE_STRAIGHT, "DDS header mismatch");
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static_assert( TEX_ALPHA_MODE_PREMULTIPLIED == DDS_ALPHA_MODE_PREMULTIPLIED, "DDS header mismatch");
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static_assert( TEX_ALPHA_MODE_OPAQUE == DDS_ALPHA_MODE_OPAQUE, "DDS header mismatch");
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static_assert( TEX_ALPHA_MODE_CUSTOM == DDS_ALPHA_MODE_CUSTOM, "DDS header mismatch");
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metadata.miscFlags2 = d3d10ext->miscFlags2;
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}
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else
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{
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metadata.arraySize = 1;
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if ( pHeader->dwFlags & DDS_HEADER_FLAGS_VOLUME )
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{
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metadata.width = pHeader->dwWidth;
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metadata.height = pHeader->dwHeight;
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metadata.depth = pHeader->dwDepth;
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metadata.dimension = TEX_DIMENSION_TEXTURE3D;
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}
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else
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{
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if ( pHeader->dwCaps2 & DDS_CUBEMAP )
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{
|
|
// We require all six faces to be defined
|
|
if ( (pHeader->dwCaps2 & DDS_CUBEMAP_ALLFACES ) != DDS_CUBEMAP_ALLFACES )
|
|
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
|
|
|
|
metadata.arraySize = 6;
|
|
metadata.miscFlags |= TEX_MISC_TEXTURECUBE;
|
|
}
|
|
|
|
metadata.width = pHeader->dwWidth;
|
|
metadata.height = pHeader->dwHeight;
|
|
metadata.depth = 1;
|
|
metadata.dimension = TEX_DIMENSION_TEXTURE2D;
|
|
|
|
// Note there's no way for a legacy Direct3D 9 DDS to express a '1D' texture
|
|
}
|
|
|
|
metadata.format = _GetDXGIFormat( pHeader->ddspf, flags, convFlags );
|
|
|
|
if ( metadata.format == DXGI_FORMAT_UNKNOWN )
|
|
return HRESULT_FROM_WIN32( ERROR_NOT_SUPPORTED );
|
|
|
|
if ( convFlags & CONV_FLAGS_PMALPHA )
|
|
metadata.miscFlags2 |= TEX_ALPHA_MODE_PREMULTIPLIED;
|
|
|
|
// Special flag for handling LUMINANCE legacy formats
|
|
if ( flags & DDS_FLAGS_EXPAND_LUMINANCE )
|
|
{
|
|
switch ( metadata.format )
|
|
{
|
|
case DXGI_FORMAT_R8_UNORM:
|
|
metadata.format = DXGI_FORMAT_R8G8B8A8_UNORM;
|
|
convFlags |= CONV_FLAGS_L8 | CONV_FLAGS_EXPAND;
|
|
break;
|
|
|
|
case DXGI_FORMAT_R8G8_UNORM:
|
|
metadata.format = DXGI_FORMAT_R8G8B8A8_UNORM;
|
|
convFlags |= CONV_FLAGS_A8L8 | CONV_FLAGS_EXPAND;
|
|
break;
|
|
|
|
case DXGI_FORMAT_R16_UNORM:
|
|
metadata.format = DXGI_FORMAT_R16G16B16A16_UNORM;
|
|
convFlags |= CONV_FLAGS_L16 | CONV_FLAGS_EXPAND;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Special flag for handling BGR DXGI 1.1 formats
|
|
if (flags & DDS_FLAGS_FORCE_RGB)
|
|
{
|
|
switch ( metadata.format )
|
|
{
|
|
case DXGI_FORMAT_B8G8R8A8_UNORM:
|
|
metadata.format = DXGI_FORMAT_R8G8B8A8_UNORM;
|
|
convFlags |= CONV_FLAGS_SWIZZLE;
|
|
break;
|
|
|
|
case DXGI_FORMAT_B8G8R8X8_UNORM:
|
|
metadata.format = DXGI_FORMAT_R8G8B8A8_UNORM;
|
|
convFlags |= CONV_FLAGS_SWIZZLE | CONV_FLAGS_NOALPHA;
|
|
break;
|
|
|
|
case DXGI_FORMAT_B8G8R8A8_TYPELESS:
|
|
metadata.format = DXGI_FORMAT_R8G8B8A8_TYPELESS;
|
|
convFlags |= CONV_FLAGS_SWIZZLE;
|
|
break;
|
|
|
|
case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB:
|
|
metadata.format = DXGI_FORMAT_R8G8B8A8_UNORM_SRGB;
|
|
convFlags |= CONV_FLAGS_SWIZZLE;
|
|
break;
|
|
|
|
case DXGI_FORMAT_B8G8R8X8_TYPELESS:
|
|
metadata.format = DXGI_FORMAT_R8G8B8A8_TYPELESS;
|
|
convFlags |= CONV_FLAGS_SWIZZLE | CONV_FLAGS_NOALPHA;
|
|
break;
|
|
|
|
case DXGI_FORMAT_B8G8R8X8_UNORM_SRGB:
|
|
metadata.format = DXGI_FORMAT_R8G8B8A8_UNORM_SRGB;
|
|
convFlags |= CONV_FLAGS_SWIZZLE | CONV_FLAGS_NOALPHA;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Special flag for handling 16bpp formats
|
|
if (flags & DDS_FLAGS_NO_16BPP)
|
|
{
|
|
switch ( metadata.format )
|
|
{
|
|
case DXGI_FORMAT_B5G6R5_UNORM:
|
|
case DXGI_FORMAT_B5G5R5A1_UNORM:
|
|
#ifdef DXGI_1_2_FORMATS
|
|
case DXGI_FORMAT_B4G4R4A4_UNORM:
|
|
#endif
|
|
metadata.format = DXGI_FORMAT_R8G8B8A8_UNORM;
|
|
convFlags |= CONV_FLAGS_EXPAND;
|
|
if ( metadata.format == DXGI_FORMAT_B5G6R5_UNORM )
|
|
convFlags |= CONV_FLAGS_NOALPHA;
|
|
}
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
//-------------------------------------------------------------------------------------
|
|
// Encodes DDS file header (magic value, header, optional DX10 extended header)
|
|
//-------------------------------------------------------------------------------------
|
|
_Use_decl_annotations_
|
|
HRESULT _EncodeDDSHeader( const TexMetadata& metadata, DWORD flags,
|
|
LPVOID pDestination, size_t maxsize, size_t& required )
|
|
{
|
|
assert( IsValid( metadata.format ) && !IsVideo( metadata.format ) );
|
|
|
|
if ( metadata.arraySize > 1 )
|
|
{
|
|
if ( (metadata.arraySize != 6) || (metadata.dimension != TEX_DIMENSION_TEXTURE2D) || !(metadata.IsCubemap()) )
|
|
{
|
|
// Texture1D arrays, Texture2D arrays, and Cubemap arrays must be stored using 'DX10' extended header
|
|
flags |= DDS_FLAGS_FORCE_DX10_EXT;
|
|
}
|
|
}
|
|
|
|
if ( flags & DDS_FLAGS_FORCE_DX10_EXT_MISC2 )
|
|
{
|
|
flags |= DDS_FLAGS_FORCE_DX10_EXT;
|
|
}
|
|
|
|
DDS_PIXELFORMAT ddpf = { 0 };
|
|
if ( !(flags & DDS_FLAGS_FORCE_DX10_EXT) )
|
|
{
|
|
switch( metadata.format )
|
|
{
|
|
case DXGI_FORMAT_R8G8B8A8_UNORM: memcpy_s( &ddpf, sizeof(ddpf), &DDSPF_A8B8G8R8, sizeof(DDS_PIXELFORMAT) ); break;
|
|
case DXGI_FORMAT_R16G16_UNORM: memcpy_s( &ddpf, sizeof(ddpf), &DDSPF_G16R16, sizeof(DDS_PIXELFORMAT) ); break;
|
|
case DXGI_FORMAT_R8G8_UNORM: memcpy_s( &ddpf, sizeof(ddpf), &DDSPF_A8L8, sizeof(DDS_PIXELFORMAT) ); break;
|
|
case DXGI_FORMAT_R16_UNORM: memcpy_s( &ddpf, sizeof(ddpf), &DDSPF_L16, sizeof(DDS_PIXELFORMAT) ); break;
|
|
case DXGI_FORMAT_R8_UNORM: memcpy_s( &ddpf, sizeof(ddpf), &DDSPF_L8, sizeof(DDS_PIXELFORMAT) ); break;
|
|
case DXGI_FORMAT_A8_UNORM: memcpy_s( &ddpf, sizeof(ddpf), &DDSPF_A8, sizeof(DDS_PIXELFORMAT) ); break;
|
|
case DXGI_FORMAT_R8G8_B8G8_UNORM: memcpy_s( &ddpf, sizeof(ddpf), &DDSPF_R8G8_B8G8, sizeof(DDS_PIXELFORMAT) ); break;
|
|
case DXGI_FORMAT_G8R8_G8B8_UNORM: memcpy_s( &ddpf, sizeof(ddpf), &DDSPF_G8R8_G8B8, sizeof(DDS_PIXELFORMAT) ); break;
|
|
case DXGI_FORMAT_BC1_UNORM: memcpy_s( &ddpf, sizeof(ddpf), &DDSPF_DXT1, sizeof(DDS_PIXELFORMAT) ); break;
|
|
case DXGI_FORMAT_BC2_UNORM: memcpy_s( &ddpf, sizeof(ddpf), metadata.IsPMAlpha() ? (&DDSPF_DXT2) : (&DDSPF_DXT3), sizeof(DDS_PIXELFORMAT) ); break;
|
|
case DXGI_FORMAT_BC3_UNORM: memcpy_s( &ddpf, sizeof(ddpf), metadata.IsPMAlpha() ? (&DDSPF_DXT4) : (&DDSPF_DXT5), sizeof(DDS_PIXELFORMAT) ); break;
|
|
case DXGI_FORMAT_BC4_UNORM: memcpy_s( &ddpf, sizeof(ddpf), &DDSPF_BC4_UNORM, sizeof(DDS_PIXELFORMAT) ); break;
|
|
case DXGI_FORMAT_BC4_SNORM: memcpy_s( &ddpf, sizeof(ddpf), &DDSPF_BC4_SNORM, sizeof(DDS_PIXELFORMAT) ); break;
|
|
case DXGI_FORMAT_BC5_UNORM: memcpy_s( &ddpf, sizeof(ddpf), &DDSPF_BC5_UNORM, sizeof(DDS_PIXELFORMAT) ); break;
|
|
case DXGI_FORMAT_BC5_SNORM: memcpy_s( &ddpf, sizeof(ddpf), &DDSPF_BC5_SNORM, sizeof(DDS_PIXELFORMAT) ); break;
|
|
case DXGI_FORMAT_B5G6R5_UNORM: memcpy_s( &ddpf, sizeof(ddpf), &DDSPF_R5G6B5, sizeof(DDS_PIXELFORMAT) ); break;
|
|
case DXGI_FORMAT_B5G5R5A1_UNORM: memcpy_s( &ddpf, sizeof(ddpf), &DDSPF_A1R5G5B5, sizeof(DDS_PIXELFORMAT) ); break;
|
|
case DXGI_FORMAT_B8G8R8A8_UNORM: memcpy_s( &ddpf, sizeof(ddpf), &DDSPF_A8R8G8B8, sizeof(DDS_PIXELFORMAT) ); break; // DXGI 1.1
|
|
case DXGI_FORMAT_B8G8R8X8_UNORM: memcpy_s( &ddpf, sizeof(ddpf), &DDSPF_X8R8G8B8, sizeof(DDS_PIXELFORMAT) ); break; // DXGI 1.1
|
|
#ifdef DXGI_1_2_FORMATS
|
|
case DXGI_FORMAT_B4G4R4A4_UNORM: memcpy_s( &ddpf, sizeof(ddpf), &DDSPF_A4R4G4B4, sizeof(DDS_PIXELFORMAT) ); break;
|
|
#endif
|
|
|
|
// Legacy D3DX formats using D3DFMT enum value as FourCC
|
|
case DXGI_FORMAT_R32G32B32A32_FLOAT:
|
|
ddpf.dwSize = sizeof(DDS_PIXELFORMAT); ddpf.dwFlags = DDS_FOURCC; ddpf.dwFourCC = 116; // D3DFMT_A32B32G32R32F
|
|
break;
|
|
case DXGI_FORMAT_R16G16B16A16_FLOAT:
|
|
ddpf.dwSize = sizeof(DDS_PIXELFORMAT); ddpf.dwFlags = DDS_FOURCC; ddpf.dwFourCC = 113; // D3DFMT_A16B16G16R16F
|
|
break;
|
|
case DXGI_FORMAT_R16G16B16A16_UNORM:
|
|
ddpf.dwSize = sizeof(DDS_PIXELFORMAT); ddpf.dwFlags = DDS_FOURCC; ddpf.dwFourCC = 36; // D3DFMT_A16B16G16R16
|
|
break;
|
|
case DXGI_FORMAT_R16G16B16A16_SNORM:
|
|
ddpf.dwSize = sizeof(DDS_PIXELFORMAT); ddpf.dwFlags = DDS_FOURCC; ddpf.dwFourCC = 110; // D3DFMT_Q16W16V16U16
|
|
break;
|
|
case DXGI_FORMAT_R32G32_FLOAT:
|
|
ddpf.dwSize = sizeof(DDS_PIXELFORMAT); ddpf.dwFlags = DDS_FOURCC; ddpf.dwFourCC = 115; // D3DFMT_G32R32F
|
|
break;
|
|
case DXGI_FORMAT_R16G16_FLOAT:
|
|
ddpf.dwSize = sizeof(DDS_PIXELFORMAT); ddpf.dwFlags = DDS_FOURCC; ddpf.dwFourCC = 112; // D3DFMT_G16R16F
|
|
break;
|
|
case DXGI_FORMAT_R32_FLOAT:
|
|
ddpf.dwSize = sizeof(DDS_PIXELFORMAT); ddpf.dwFlags = DDS_FOURCC; ddpf.dwFourCC = 114; // D3DFMT_R32F
|
|
break;
|
|
case DXGI_FORMAT_R16_FLOAT:
|
|
ddpf.dwSize = sizeof(DDS_PIXELFORMAT); ddpf.dwFlags = DDS_FOURCC; ddpf.dwFourCC = 111; // D3DFMT_R16F
|
|
break;
|
|
}
|
|
}
|
|
|
|
required = sizeof(uint32_t) + sizeof(DDS_HEADER);
|
|
|
|
if ( ddpf.dwSize == 0 )
|
|
required += sizeof(DDS_HEADER_DXT10);
|
|
|
|
if ( !pDestination )
|
|
return S_OK;
|
|
|
|
if ( maxsize < required )
|
|
return E_NOT_SUFFICIENT_BUFFER;
|
|
|
|
*reinterpret_cast<uint32_t*>(pDestination) = DDS_MAGIC;
|
|
|
|
auto header = reinterpret_cast<DDS_HEADER*>( reinterpret_cast<uint8_t*>(pDestination) + sizeof(uint32_t) );
|
|
assert( header );
|
|
|
|
memset( header, 0, sizeof(DDS_HEADER ) );
|
|
header->dwSize = sizeof( DDS_HEADER );
|
|
header->dwFlags = DDS_HEADER_FLAGS_TEXTURE;
|
|
header->dwCaps = DDS_SURFACE_FLAGS_TEXTURE;
|
|
|
|
if (metadata.mipLevels > 0)
|
|
{
|
|
header->dwFlags |= DDS_HEADER_FLAGS_MIPMAP;
|
|
|
|
#ifdef _M_X64
|
|
if ( metadata.mipLevels > 0xFFFFFFFF )
|
|
return E_INVALIDARG;
|
|
#endif
|
|
|
|
header->dwMipMapCount = static_cast<uint32_t>( metadata.mipLevels );
|
|
|
|
if ( header->dwMipMapCount > 1 )
|
|
header->dwCaps |= DDS_SURFACE_FLAGS_MIPMAP;
|
|
}
|
|
|
|
switch( metadata.dimension )
|
|
{
|
|
case TEX_DIMENSION_TEXTURE1D:
|
|
#ifdef _M_X64
|
|
if ( metadata.width > 0xFFFFFFFF )
|
|
return E_INVALIDARG;
|
|
#endif
|
|
|
|
header->dwWidth = static_cast<uint32_t>( metadata.width );
|
|
header->dwHeight = header->dwDepth = 1;
|
|
break;
|
|
|
|
case TEX_DIMENSION_TEXTURE2D:
|
|
#ifdef _M_X64
|
|
if ( metadata.height > 0xFFFFFFFF
|
|
|| metadata.width > 0xFFFFFFFF)
|
|
return E_INVALIDARG;
|
|
#endif
|
|
|
|
header->dwHeight = static_cast<uint32_t>( metadata.height );
|
|
header->dwWidth = static_cast<uint32_t>( metadata.width );
|
|
header->dwDepth = 1;
|
|
|
|
if ( metadata.IsCubemap() )
|
|
{
|
|
header->dwCaps |= DDS_SURFACE_FLAGS_CUBEMAP;
|
|
header->dwCaps2 |= DDS_CUBEMAP_ALLFACES;
|
|
}
|
|
break;
|
|
|
|
case TEX_DIMENSION_TEXTURE3D:
|
|
#ifdef _M_X64
|
|
if ( metadata.height > 0xFFFFFFFF
|
|
|| metadata.width > 0xFFFFFFFF
|
|
|| metadata.depth > 0xFFFFFFFF )
|
|
return E_INVALIDARG;
|
|
#endif
|
|
|
|
header->dwFlags |= DDS_HEADER_FLAGS_VOLUME;
|
|
header->dwCaps2 |= DDS_FLAGS_VOLUME;
|
|
header->dwHeight = static_cast<uint32_t>( metadata.height );
|
|
header->dwWidth = static_cast<uint32_t>( metadata.width );
|
|
header->dwDepth = static_cast<uint32_t>( metadata.depth );
|
|
break;
|
|
|
|
default:
|
|
return E_FAIL;
|
|
}
|
|
|
|
size_t rowPitch, slicePitch;
|
|
ComputePitch( metadata.format, metadata.width, metadata.height, rowPitch, slicePitch, CP_FLAGS_NONE );
|
|
|
|
#ifdef _M_X64
|
|
if ( slicePitch > 0xFFFFFFFF
|
|
|| rowPitch > 0xFFFFFFFF )
|
|
return E_FAIL;
|
|
#endif
|
|
|
|
if ( IsCompressed( metadata.format ) )
|
|
{
|
|
header->dwFlags |= DDS_HEADER_FLAGS_LINEARSIZE;
|
|
header->dwPitchOrLinearSize = static_cast<uint32_t>( slicePitch );
|
|
}
|
|
else
|
|
{
|
|
header->dwFlags |= DDS_HEADER_FLAGS_PITCH;
|
|
header->dwPitchOrLinearSize = static_cast<uint32_t>( rowPitch );
|
|
}
|
|
|
|
if ( ddpf.dwSize == 0 )
|
|
{
|
|
memcpy_s( &header->ddspf, sizeof(header->ddspf), &DDSPF_DX10, sizeof(DDS_PIXELFORMAT) );
|
|
|
|
auto ext = reinterpret_cast<DDS_HEADER_DXT10*>( reinterpret_cast<uint8_t*>(header) + sizeof(DDS_HEADER) );
|
|
assert( ext );
|
|
|
|
memset( ext, 0, sizeof(DDS_HEADER_DXT10) );
|
|
ext->dxgiFormat = metadata.format;
|
|
ext->resourceDimension = metadata.dimension;
|
|
|
|
#ifdef _M_X64
|
|
if ( metadata.arraySize > 0xFFFFFFFF )
|
|
return E_INVALIDARG;
|
|
#endif
|
|
|
|
static_assert( TEX_MISC_TEXTURECUBE == DDS_RESOURCE_MISC_TEXTURECUBE, "DDS header mismatch");
|
|
|
|
ext->miscFlag = metadata.miscFlags & ~TEX_MISC_TEXTURECUBE;
|
|
|
|
if ( metadata.miscFlags & TEX_MISC_TEXTURECUBE )
|
|
{
|
|
ext->miscFlag |= TEX_MISC_TEXTURECUBE;
|
|
assert( (metadata.arraySize % 6) == 0 );
|
|
ext->arraySize = static_cast<UINT>( metadata.arraySize / 6 );
|
|
}
|
|
else
|
|
{
|
|
ext->arraySize = static_cast<UINT>( metadata.arraySize );
|
|
}
|
|
|
|
static_assert( TEX_MISC2_ALPHA_MODE_MASK == DDS_MISC_FLAGS2_ALPHA_MODE_MASK, "DDS header mismatch");
|
|
|
|
static_assert( TEX_ALPHA_MODE_UNKNOWN == DDS_ALPHA_MODE_UNKNOWN, "DDS header mismatch");
|
|
static_assert( TEX_ALPHA_MODE_STRAIGHT == DDS_ALPHA_MODE_STRAIGHT, "DDS header mismatch");
|
|
static_assert( TEX_ALPHA_MODE_PREMULTIPLIED == DDS_ALPHA_MODE_PREMULTIPLIED, "DDS header mismatch");
|
|
static_assert( TEX_ALPHA_MODE_OPAQUE == DDS_ALPHA_MODE_OPAQUE, "DDS header mismatch");
|
|
static_assert( TEX_ALPHA_MODE_CUSTOM == DDS_ALPHA_MODE_CUSTOM, "DDS header mismatch");
|
|
|
|
if ( flags & DDS_FLAGS_FORCE_DX10_EXT_MISC2 )
|
|
{
|
|
// This was formerly 'reserved'. D3DX10 and D3DX11 will fail if this value is anything other than 0
|
|
ext->miscFlags2 = metadata.miscFlags2;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
memcpy_s( &header->ddspf, sizeof(header->ddspf), &ddpf, sizeof(ddpf) );
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
//-------------------------------------------------------------------------------------
|
|
// Converts an image row with optional clearing of alpha value to 1.0
|
|
// Returns true if supported, false if expansion case not supported
|
|
//-------------------------------------------------------------------------------------
|
|
enum TEXP_LEGACY_FORMAT
|
|
{
|
|
TEXP_LEGACY_UNKNOWN = 0,
|
|
TEXP_LEGACY_R8G8B8,
|
|
TEXP_LEGACY_R3G3B2,
|
|
TEXP_LEGACY_A8R3G3B2,
|
|
TEXP_LEGACY_P8,
|
|
TEXP_LEGACY_A8P8,
|
|
TEXP_LEGACY_A4L4,
|
|
TEXP_LEGACY_B4G4R4A4,
|
|
TEXP_LEGACY_L8,
|
|
TEXP_LEGACY_L16,
|
|
TEXP_LEGACY_A8L8
|
|
};
|
|
|
|
inline static TEXP_LEGACY_FORMAT _FindLegacyFormat( DWORD flags )
|
|
{
|
|
TEXP_LEGACY_FORMAT lformat = TEXP_LEGACY_UNKNOWN;
|
|
|
|
if ( flags & CONV_FLAGS_PAL8 )
|
|
{
|
|
lformat = ( flags & CONV_FLAGS_A8P8 ) ? TEXP_LEGACY_A8P8 : TEXP_LEGACY_P8;
|
|
}
|
|
else if ( flags & CONV_FLAGS_888 )
|
|
lformat = TEXP_LEGACY_R8G8B8;
|
|
else if ( flags & CONV_FLAGS_332 )
|
|
lformat = TEXP_LEGACY_R3G3B2;
|
|
else if ( flags & CONV_FLAGS_8332 )
|
|
lformat = TEXP_LEGACY_A8R3G3B2;
|
|
else if ( flags & CONV_FLAGS_44 )
|
|
lformat = TEXP_LEGACY_A4L4;
|
|
#ifndef DXGI_1_2_FORMATS
|
|
else if ( flags & CONV_FLAGS_4444 )
|
|
lformat = TEXP_LEGACY_B4G4R4A4;
|
|
#endif
|
|
else if ( flags & CONV_FLAGS_L8 )
|
|
lformat = TEXP_LEGACY_L8;
|
|
else if ( flags & CONV_FLAGS_L16 )
|
|
lformat = TEXP_LEGACY_L16;
|
|
else if ( flags & CONV_FLAGS_A8L8 )
|
|
lformat = TEXP_LEGACY_A8L8;
|
|
|
|
return lformat;
|
|
}
|
|
|
|
_Success_(return != false)
|
|
static bool _LegacyExpandScanline( _Out_writes_bytes_(outSize) LPVOID pDestination, size_t outSize, _In_ DXGI_FORMAT outFormat,
|
|
_In_reads_bytes_(inSize) LPCVOID pSource, size_t inSize, _In_ TEXP_LEGACY_FORMAT inFormat,
|
|
_In_reads_opt_(256) const uint32_t* pal8, _In_ DWORD flags )
|
|
{
|
|
assert( pDestination && outSize > 0 );
|
|
assert( pSource && inSize > 0 );
|
|
assert( IsValid(outFormat) && !IsVideo(outFormat) );
|
|
|
|
switch( inFormat )
|
|
{
|
|
case TEXP_LEGACY_R8G8B8:
|
|
if ( outFormat != DXGI_FORMAT_R8G8B8A8_UNORM )
|
|
return false;
|
|
|
|
// D3DFMT_R8G8B8 -> DXGI_FORMAT_R8G8B8A8_UNORM
|
|
{
|
|
const uint8_t * __restrict sPtr = reinterpret_cast<const uint8_t*>(pSource);
|
|
uint32_t * __restrict dPtr = reinterpret_cast<uint32_t*>(pDestination);
|
|
|
|
for( size_t ocount = 0, icount = 0; ((icount < inSize) && (ocount < outSize)); icount += 3, ocount += 4 )
|
|
{
|
|
// 24bpp Direct3D 9 files are actually BGR, so need to swizzle as well
|
|
uint32_t t1 = ( *(sPtr) << 16 );
|
|
uint32_t t2 = ( *(sPtr+1) << 8 );
|
|
uint32_t t3 = *(sPtr+2);
|
|
|
|
*(dPtr++) = t1 | t2 | t3 | 0xff000000;
|
|
sPtr += 3;
|
|
}
|
|
}
|
|
return true;
|
|
|
|
case TEXP_LEGACY_R3G3B2:
|
|
switch( outFormat )
|
|
{
|
|
case DXGI_FORMAT_R8G8B8A8_UNORM:
|
|
// D3DFMT_R3G3B2 -> DXGI_FORMAT_R8G8B8A8_UNORM
|
|
{
|
|
const uint8_t* __restrict sPtr = reinterpret_cast<const uint8_t*>(pSource);
|
|
uint32_t * __restrict dPtr = reinterpret_cast<uint32_t*>(pDestination);
|
|
|
|
for( size_t ocount = 0, icount = 0; ((icount < inSize) && (ocount < outSize)); ++icount, ocount += 4 )
|
|
{
|
|
uint8_t t = *(sPtr++);
|
|
|
|
uint32_t t1 = (t & 0xe0) | ((t & 0xe0) >> 3) | ((t & 0xc0) >> 6);
|
|
uint32_t t2 = ((t & 0x1c) << 11) | ((t & 0x1c) << 8) | ((t & 0x18) << 5);
|
|
uint32_t t3 = ((t & 0x03) << 22) | ((t & 0x03) << 20) | ((t & 0x03) << 18) | ((t & 0x03) << 16);
|
|
|
|
*(dPtr++) = t1 | t2 | t3 | 0xff000000;
|
|
}
|
|
}
|
|
return true;
|
|
|
|
case DXGI_FORMAT_B5G6R5_UNORM:
|
|
// D3DFMT_R3G3B2 -> DXGI_FORMAT_B5G6R5_UNORM
|
|
{
|
|
const uint8_t* __restrict sPtr = reinterpret_cast<const uint8_t*>(pSource);
|
|
uint16_t * __restrict dPtr = reinterpret_cast<uint16_t*>(pDestination);
|
|
|
|
for( size_t ocount = 0, icount = 0; ((icount < inSize) && (ocount < outSize)); ++icount, ocount += 2 )
|
|
{
|
|
uint8_t t = *(sPtr++);
|
|
|
|
uint16_t t1 = ((t & 0xe0) << 8) | ((t & 0xc0) << 5);
|
|
uint16_t t2 = ((t & 0x1c) << 6) | ((t & 0x1c) << 3);
|
|
uint16_t t3 = ((t & 0x03) << 3) | ((t & 0x03) << 1) | ((t & 0x02) >> 1);
|
|
|
|
*(dPtr++) = t1 | t2 | t3;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
break;
|
|
|
|
case TEXP_LEGACY_A8R3G3B2:
|
|
if ( outFormat != DXGI_FORMAT_R8G8B8A8_UNORM )
|
|
return false;
|
|
|
|
// D3DFMT_A8R3G3B2 -> DXGI_FORMAT_R8G8B8A8_UNORM
|
|
{
|
|
const uint16_t* __restrict sPtr = reinterpret_cast<const uint16_t*>(pSource);
|
|
uint32_t * __restrict dPtr = reinterpret_cast<uint32_t*>(pDestination);
|
|
|
|
for( size_t ocount = 0, icount = 0; ((icount < inSize) && (ocount < outSize)); icount += 2, ocount += 4 )
|
|
{
|
|
uint16_t t = *(sPtr++);
|
|
|
|
uint32_t t1 = (t & 0x00e0) | ((t & 0x00e0) >> 3) | ((t & 0x00c0) >> 6);
|
|
uint32_t t2 = ((t & 0x001c) << 11) | ((t & 0x001c) << 8) | ((t & 0x0018) << 5);
|
|
uint32_t t3 = ((t & 0x0003) << 22) | ((t & 0x0003) << 20) | ((t & 0x0003) << 18) | ((t & 0x0003) << 16);
|
|
uint32_t ta = ( flags & TEXP_SCANLINE_SETALPHA ) ? 0xff000000 : ((t & 0xff00) << 16);
|
|
|
|
*(dPtr++) = t1 | t2 | t3 | ta;
|
|
}
|
|
}
|
|
return true;
|
|
|
|
case TEXP_LEGACY_P8:
|
|
if ( (outFormat != DXGI_FORMAT_R8G8B8A8_UNORM) || !pal8 )
|
|
return false;
|
|
|
|
// D3DFMT_P8 -> DXGI_FORMAT_R8G8B8A8_UNORM
|
|
{
|
|
const uint8_t* __restrict sPtr = reinterpret_cast<const uint8_t*>(pSource);
|
|
uint32_t * __restrict dPtr = reinterpret_cast<uint32_t*>(pDestination);
|
|
|
|
for( size_t ocount = 0, icount = 0; ((icount < inSize) && (ocount < outSize)); ++icount, ocount += 4 )
|
|
{
|
|
uint8_t t = *(sPtr++);
|
|
|
|
*(dPtr++) = pal8[ t ];
|
|
}
|
|
}
|
|
return true;
|
|
|
|
case TEXP_LEGACY_A8P8:
|
|
if ( (outFormat != DXGI_FORMAT_R8G8B8A8_UNORM) || !pal8 )
|
|
return false;
|
|
|
|
// D3DFMT_A8P8 -> DXGI_FORMAT_R8G8B8A8_UNORM
|
|
{
|
|
const uint16_t* __restrict sPtr = reinterpret_cast<const uint16_t*>(pSource);
|
|
uint32_t * __restrict dPtr = reinterpret_cast<uint32_t*>(pDestination);
|
|
|
|
for( size_t ocount = 0, icount = 0; ((icount < inSize) && (ocount < outSize)); icount += 2, ocount += 4 )
|
|
{
|
|
uint16_t t = *(sPtr++);
|
|
|
|
uint32_t t1 = pal8[ t & 0xff ];
|
|
uint32_t ta = ( flags & TEXP_SCANLINE_SETALPHA ) ? 0xff000000 : ((t & 0xff00) << 16);
|
|
|
|
*(dPtr++) = t1 | ta;
|
|
}
|
|
}
|
|
return true;
|
|
|
|
case TEXP_LEGACY_A4L4:
|
|
switch( outFormat )
|
|
{
|
|
#ifdef DXGI_1_2_FORMATS
|
|
case DXGI_FORMAT_B4G4R4A4_UNORM :
|
|
// D3DFMT_A4L4 -> DXGI_FORMAT_B4G4R4A4_UNORM
|
|
{
|
|
const uint8_t * __restrict sPtr = reinterpret_cast<const uint8_t*>(pSource);
|
|
uint16_t * __restrict dPtr = reinterpret_cast<uint16_t*>(pDestination);
|
|
|
|
for( size_t ocount = 0, icount = 0; ((icount < inSize) && (ocount < outSize)); ++icount, ocount += 2 )
|
|
{
|
|
uint8_t t = *(sPtr++);
|
|
|
|
uint16_t t1 = (t & 0x0f);
|
|
uint16_t ta = ( flags & TEXP_SCANLINE_SETALPHA ) ? 0xf000 : ((t & 0xf0) << 8);
|
|
|
|
*(dPtr++) = t1 | (t1 << 4) | (t1 << 8) | ta;
|
|
}
|
|
}
|
|
return true;
|
|
#endif // DXGI_1_2_FORMATS
|
|
|
|
case DXGI_FORMAT_R8G8B8A8_UNORM:
|
|
// D3DFMT_A4L4 -> DXGI_FORMAT_R8G8B8A8_UNORM
|
|
{
|
|
const uint8_t * __restrict sPtr = reinterpret_cast<const uint8_t*>(pSource);
|
|
uint32_t * __restrict dPtr = reinterpret_cast<uint32_t*>(pDestination);
|
|
|
|
for( size_t ocount = 0, icount = 0; ((icount < inSize) && (ocount < outSize)); ++icount, ocount += 4 )
|
|
{
|
|
uint8_t t = *(sPtr++);
|
|
|
|
uint32_t t1 = ((t & 0x0f) << 4) | (t & 0x0f);
|
|
uint32_t ta = ( flags & TEXP_SCANLINE_SETALPHA ) ? 0xff000000 : (((t & 0xf0) << 24) | ((t & 0xf0) << 20));
|
|
|
|
*(dPtr++) = t1 | (t1 << 8) | (t1 << 16) | ta;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
break;
|
|
|
|
#ifndef DXGI_1_2_FORMATS
|
|
case TEXP_LEGACY_B4G4R4A4:
|
|
if (outFormat != DXGI_FORMAT_R8G8B8A8_UNORM)
|
|
return false;
|
|
|
|
// D3DFMT_A4R4G4B4 -> DXGI_FORMAT_R8G8B8A8_UNORM
|
|
{
|
|
const uint16_t * __restrict sPtr = reinterpret_cast<const uint16_t*>(pSource);
|
|
uint32_t * __restrict dPtr = reinterpret_cast<uint32_t*>(pDestination);
|
|
|
|
for( size_t ocount = 0, icount = 0; ((icount < inSize) && (ocount < outSize)); icount += 2, ocount += 4 )
|
|
{
|
|
uint16_t t = *(sPtr++);
|
|
|
|
uint32_t t1 = ((t & 0x0f00) >> 4) | ((t & 0x0f00) >> 8);
|
|
uint32_t t2 = ((t & 0x00f0) << 8) | ((t & 0x00f0) << 4);
|
|
uint32_t t3 = ((t & 0x000f) << 20) | ((t & 0x000f) << 16);
|
|
uint32_t ta = ( flags & TEXP_SCANLINE_SETALPHA ) ? 0xff000000 : (((t & 0xf000) << 16) | ((t & 0xf000) << 12));
|
|
|
|
*(dPtr++) = t1 | t2 | t3 | ta;
|
|
}
|
|
}
|
|
return true;
|
|
#endif
|
|
|
|
case TEXP_LEGACY_L8:
|
|
if (outFormat != DXGI_FORMAT_R8G8B8A8_UNORM)
|
|
return false;
|
|
|
|
// D3DFMT_L8 -> DXGI_FORMAT_R8G8B8A8_UNORM
|
|
{
|
|
const uint8_t * __restrict sPtr = reinterpret_cast<const uint8_t*>(pSource);
|
|
uint32_t * __restrict dPtr = reinterpret_cast<uint32_t*>(pDestination);
|
|
|
|
for( size_t ocount = 0, icount = 0; ((icount < inSize) && (ocount < outSize)); ++icount, ocount += 4 )
|
|
{
|
|
uint32_t t1 = *(sPtr++);
|
|
uint32_t t2 = (t1 << 8);
|
|
uint32_t t3 = (t1 << 16);
|
|
|
|
*(dPtr++) = t1 | t2 | t3 | 0xff000000;
|
|
}
|
|
}
|
|
return true;
|
|
|
|
case TEXP_LEGACY_L16:
|
|
if (outFormat != DXGI_FORMAT_R16G16B16A16_UNORM)
|
|
return false;
|
|
|
|
// D3DFMT_L16 -> DXGI_FORMAT_R16G16B16A16_UNORM
|
|
{
|
|
const uint16_t* __restrict sPtr = reinterpret_cast<const uint16_t*>(pSource);
|
|
uint64_t * __restrict dPtr = reinterpret_cast<uint64_t*>(pDestination);
|
|
|
|
for( size_t ocount = 0, icount = 0; ((icount < inSize) && (ocount < outSize)); icount += 2, ocount += 8 )
|
|
{
|
|
uint16_t t = *(sPtr++);
|
|
|
|
uint64_t t1 = t;
|
|
uint64_t t2 = (t1 << 16);
|
|
uint64_t t3 = (t1 << 32);
|
|
|
|
*(dPtr++) = t1 | t2 | t3 | 0xffff000000000000;
|
|
}
|
|
}
|
|
return true;
|
|
|
|
case TEXP_LEGACY_A8L8:
|
|
if (outFormat != DXGI_FORMAT_R8G8B8A8_UNORM)
|
|
return false;
|
|
|
|
// D3DFMT_A8L8 -> DXGI_FORMAT_R8G8B8A8_UNORM
|
|
{
|
|
const uint16_t* __restrict sPtr = reinterpret_cast<const uint16_t*>(pSource);
|
|
uint32_t * __restrict dPtr = reinterpret_cast<uint32_t*>(pDestination);
|
|
|
|
for( size_t ocount = 0, icount = 0; ((icount < inSize) && (ocount < outSize)); icount += 2, ocount += 4 )
|
|
{
|
|
uint16_t t = *(sPtr++);
|
|
|
|
uint32_t t1 = (t & 0xff);
|
|
uint32_t t2 = (t1 << 8);
|
|
uint32_t t3 = (t1 << 16);
|
|
uint32_t ta = ( flags & TEXP_SCANLINE_SETALPHA ) ? 0xff000000 : ((t & 0xff00) << 16);
|
|
|
|
*(dPtr++) = t1 | t2 | t3 | ta;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
//-------------------------------------------------------------------------------------
|
|
// Converts or copies image data from pPixels into scratch image data
|
|
//-------------------------------------------------------------------------------------
|
|
static HRESULT _CopyImage( _In_reads_bytes_(size) const void* pPixels, _In_ size_t size,
|
|
_In_ const TexMetadata& metadata, _In_ DWORD cpFlags, _In_ DWORD convFlags, _In_reads_opt_(256) const uint32_t *pal8, _In_ const ScratchImage& image )
|
|
{
|
|
assert( pPixels );
|
|
assert( image.GetPixels() );
|
|
|
|
if ( !size )
|
|
return E_FAIL;
|
|
|
|
if ( convFlags & CONV_FLAGS_EXPAND )
|
|
{
|
|
if ( convFlags & CONV_FLAGS_888 )
|
|
cpFlags |= CP_FLAGS_24BPP;
|
|
else if ( convFlags & (CONV_FLAGS_565 | CONV_FLAGS_5551 | CONV_FLAGS_4444 | CONV_FLAGS_8332 | CONV_FLAGS_A8P8 | CONV_FLAGS_L16 | CONV_FLAGS_A8L8) )
|
|
cpFlags |= CP_FLAGS_16BPP;
|
|
else if ( convFlags & (CONV_FLAGS_44 | CONV_FLAGS_332 | CONV_FLAGS_PAL8 | CONV_FLAGS_L8) )
|
|
cpFlags |= CP_FLAGS_8BPP;
|
|
}
|
|
|
|
size_t pixelSize, nimages;
|
|
_DetermineImageArray( metadata, cpFlags, nimages, pixelSize );
|
|
if ( (nimages == 0) || (nimages != image.GetImageCount()) )
|
|
{
|
|
return E_FAIL;
|
|
}
|
|
|
|
assert( pixelSize <= size );
|
|
|
|
std::unique_ptr<Image[]> timages( new (std::nothrow) Image[nimages] );
|
|
if ( !timages )
|
|
{
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
if ( !_SetupImageArray( (uint8_t*)pPixels, size, metadata, cpFlags, timages.get(), nimages ) )
|
|
{
|
|
return E_FAIL;
|
|
}
|
|
|
|
if ( nimages != image.GetImageCount() )
|
|
{
|
|
return E_FAIL;
|
|
}
|
|
|
|
const Image* images = image.GetImages();
|
|
if ( !images )
|
|
{
|
|
return E_FAIL;
|
|
}
|
|
|
|
DWORD tflags = (convFlags & CONV_FLAGS_NOALPHA) ? TEXP_SCANLINE_SETALPHA : 0;
|
|
if ( convFlags & CONV_FLAGS_SWIZZLE )
|
|
tflags |= TEXP_SCANLINE_LEGACY;
|
|
|
|
switch (metadata.dimension)
|
|
{
|
|
case TEX_DIMENSION_TEXTURE1D:
|
|
case TEX_DIMENSION_TEXTURE2D:
|
|
{
|
|
size_t index = 0;
|
|
for( size_t item = 0; item < metadata.arraySize; ++item )
|
|
{
|
|
for( size_t level = 0; level < metadata.mipLevels; ++level, ++index )
|
|
{
|
|
if ( index >= nimages )
|
|
return E_FAIL;
|
|
|
|
if ( images[ index ].height != timages[ index ].height )
|
|
return E_FAIL;
|
|
|
|
size_t dpitch = images[ index ].rowPitch;
|
|
size_t spitch = timages[ index ].rowPitch;
|
|
|
|
const uint8_t *pSrc = const_cast<const uint8_t*>( timages[ index ].pixels );
|
|
if ( !pSrc )
|
|
return E_POINTER;
|
|
|
|
uint8_t *pDest = images[ index ].pixels;
|
|
if ( !pDest )
|
|
return E_POINTER;
|
|
|
|
if ( IsCompressed( metadata.format ) )
|
|
{
|
|
size_t csize = std::min<size_t>( images[ index ].slicePitch, timages[ index ].slicePitch );
|
|
memcpy_s( pDest, images[ index ].slicePitch, pSrc, csize );
|
|
}
|
|
else
|
|
{
|
|
for( size_t h = 0; h < images[ index ].height; ++h )
|
|
{
|
|
if ( convFlags & CONV_FLAGS_EXPAND )
|
|
{
|
|
#ifdef DXGI_1_2_FORMATS
|
|
if ( convFlags & (CONV_FLAGS_565|CONV_FLAGS_5551|CONV_FLAGS_4444) )
|
|
#else
|
|
if ( convFlags & (CONV_FLAGS_565|CONV_FLAGS_5551) )
|
|
#endif
|
|
{
|
|
if ( !_ExpandScanline( pDest, dpitch, DXGI_FORMAT_R8G8B8A8_UNORM,
|
|
pSrc, spitch,
|
|
(convFlags & CONV_FLAGS_565) ? DXGI_FORMAT_B5G6R5_UNORM : DXGI_FORMAT_B5G5R5A1_UNORM,
|
|
tflags ) )
|
|
return E_FAIL;
|
|
}
|
|
else
|
|
{
|
|
TEXP_LEGACY_FORMAT lformat = _FindLegacyFormat( convFlags );
|
|
if ( !_LegacyExpandScanline( pDest, dpitch, metadata.format,
|
|
pSrc, spitch, lformat, pal8,
|
|
tflags ) )
|
|
return E_FAIL;
|
|
}
|
|
}
|
|
else if ( convFlags & CONV_FLAGS_SWIZZLE )
|
|
{
|
|
_SwizzleScanline( pDest, dpitch, pSrc, spitch,
|
|
metadata.format, tflags );
|
|
}
|
|
else
|
|
{
|
|
_CopyScanline( pDest, dpitch, pSrc, spitch,
|
|
metadata.format, tflags );
|
|
}
|
|
|
|
pSrc += spitch;
|
|
pDest += dpitch;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case TEX_DIMENSION_TEXTURE3D:
|
|
{
|
|
size_t index = 0;
|
|
size_t d = metadata.depth;
|
|
|
|
for( size_t level = 0; level < metadata.mipLevels; ++level )
|
|
{
|
|
for( size_t slice = 0; slice < d; ++slice, ++index )
|
|
{
|
|
if ( index >= nimages )
|
|
return E_FAIL;
|
|
|
|
if ( images[ index ].height != timages[ index ].height )
|
|
return E_FAIL;
|
|
|
|
size_t dpitch = images[ index ].rowPitch;
|
|
size_t spitch = timages[ index ].rowPitch;
|
|
|
|
const uint8_t *pSrc = const_cast<const uint8_t*>( timages[ index ].pixels );
|
|
if ( !pSrc )
|
|
return E_POINTER;
|
|
|
|
uint8_t *pDest = images[ index ].pixels;
|
|
if ( !pDest )
|
|
return E_POINTER;
|
|
|
|
if ( IsCompressed( metadata.format ) )
|
|
{
|
|
size_t csize = std::min<size_t>( images[ index ].slicePitch, timages[ index ].slicePitch );
|
|
memcpy_s( pDest, images[ index ].slicePitch, pSrc, csize );
|
|
}
|
|
else
|
|
{
|
|
for( size_t h = 0; h < images[ index ].height; ++h )
|
|
{
|
|
if ( convFlags & CONV_FLAGS_EXPAND )
|
|
{
|
|
#ifdef DXGI_1_2_FORMATS
|
|
if ( convFlags & (CONV_FLAGS_565|CONV_FLAGS_5551|CONV_FLAGS_4444) )
|
|
#else
|
|
if ( convFlags & (CONV_FLAGS_565|CONV_FLAGS_5551) )
|
|
#endif
|
|
{
|
|
if ( !_ExpandScanline( pDest, dpitch, DXGI_FORMAT_R8G8B8A8_UNORM,
|
|
pSrc, spitch,
|
|
(convFlags & CONV_FLAGS_565) ? DXGI_FORMAT_B5G6R5_UNORM : DXGI_FORMAT_B5G5R5A1_UNORM,
|
|
tflags ) )
|
|
return E_FAIL;
|
|
}
|
|
else
|
|
{
|
|
TEXP_LEGACY_FORMAT lformat = _FindLegacyFormat( convFlags );
|
|
if ( !_LegacyExpandScanline( pDest, dpitch, metadata.format,
|
|
pSrc, spitch, lformat, pal8,
|
|
tflags ) )
|
|
return E_FAIL;
|
|
}
|
|
}
|
|
else if ( convFlags & CONV_FLAGS_SWIZZLE )
|
|
{
|
|
_SwizzleScanline( pDest, dpitch, pSrc, spitch, metadata.format, tflags );
|
|
}
|
|
else
|
|
{
|
|
_CopyScanline( pDest, dpitch, pSrc, spitch, metadata.format, tflags );
|
|
}
|
|
|
|
pSrc += spitch;
|
|
pDest += dpitch;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( d > 1 )
|
|
d >>= 1;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return E_FAIL;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
static HRESULT _CopyImageInPlace( DWORD convFlags, _In_ const ScratchImage& image )
|
|
{
|
|
if ( !image.GetPixels() )
|
|
return E_FAIL;
|
|
|
|
const Image* images = image.GetImages();
|
|
if ( !images )
|
|
return E_FAIL;
|
|
|
|
const TexMetadata& metadata = image.GetMetadata();
|
|
|
|
DWORD tflags = (convFlags & CONV_FLAGS_NOALPHA) ? TEXP_SCANLINE_SETALPHA : 0;
|
|
if ( convFlags & CONV_FLAGS_SWIZZLE )
|
|
tflags |= TEXP_SCANLINE_LEGACY;
|
|
|
|
for( size_t i = 0; i < image.GetImageCount(); ++i )
|
|
{
|
|
const Image* img = &images[ i ];
|
|
uint8_t *pPixels = img->pixels;
|
|
if ( !pPixels )
|
|
return E_POINTER;
|
|
|
|
size_t rowPitch = img->rowPitch;
|
|
|
|
for( size_t h = 0; h < img->height; ++h )
|
|
{
|
|
if ( convFlags & CONV_FLAGS_SWIZZLE )
|
|
{
|
|
_SwizzleScanline( pPixels, rowPitch, pPixels, rowPitch, metadata.format, tflags );
|
|
}
|
|
else
|
|
{
|
|
_CopyScanline( pPixels, rowPitch, pPixels, rowPitch, metadata.format, tflags );
|
|
}
|
|
|
|
pPixels += rowPitch;
|
|
}
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
//=====================================================================================
|
|
// Entry-points
|
|
//=====================================================================================
|
|
|
|
//-------------------------------------------------------------------------------------
|
|
// Obtain metadata from DDS file in memory/on disk
|
|
//-------------------------------------------------------------------------------------
|
|
|
|
_Use_decl_annotations_
|
|
HRESULT GetMetadataFromDDSMemory( LPCVOID pSource, size_t size, DWORD flags, TexMetadata& metadata )
|
|
{
|
|
if ( !pSource || size == 0 )
|
|
return E_INVALIDARG;
|
|
|
|
DWORD convFlags = 0;
|
|
return _DecodeDDSHeader( pSource, size, flags, metadata, convFlags );
|
|
}
|
|
|
|
_Use_decl_annotations_
|
|
HRESULT GetMetadataFromDDSFile( LPCWSTR szFile, DWORD flags, TexMetadata& metadata )
|
|
{
|
|
if ( !szFile )
|
|
return E_INVALIDARG;
|
|
|
|
#if (_WIN32_WINNT >= 0x0602 /*_WIN32_WINNT_WIN8*/)
|
|
ScopedHandle hFile( safe_handle( CreateFile2( szFile, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, 0 ) ) );
|
|
#else
|
|
ScopedHandle hFile( safe_handle( CreateFileW( szFile, GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING,
|
|
FILE_FLAG_SEQUENTIAL_SCAN, 0 ) ) );
|
|
#endif
|
|
if ( !hFile )
|
|
{
|
|
return HRESULT_FROM_WIN32( GetLastError() );
|
|
}
|
|
|
|
// Get the file size
|
|
LARGE_INTEGER fileSize = {0};
|
|
|
|
#if (_WIN32_WINNT >= _WIN32_WINNT_VISTA)
|
|
FILE_STANDARD_INFO fileInfo;
|
|
if ( !GetFileInformationByHandleEx( hFile.get(), FileStandardInfo, &fileInfo, sizeof(fileInfo) ) )
|
|
{
|
|
return HRESULT_FROM_WIN32( GetLastError() );
|
|
}
|
|
fileSize = fileInfo.EndOfFile;
|
|
#else
|
|
if ( !GetFileSizeEx( hFile.get(), &fileSize ) )
|
|
{
|
|
return HRESULT_FROM_WIN32( GetLastError() );
|
|
}
|
|
#endif
|
|
|
|
// File is too big for 32-bit allocation, so reject read (4 GB should be plenty large enough for a valid DDS file)
|
|
if ( fileSize.HighPart > 0 )
|
|
{
|
|
return HRESULT_FROM_WIN32( ERROR_FILE_TOO_LARGE );
|
|
}
|
|
|
|
// Need at least enough data to fill the standard header and magic number to be a valid DDS
|
|
if ( fileSize.LowPart < ( sizeof(DDS_HEADER) + sizeof(uint32_t) ) )
|
|
{
|
|
return E_FAIL;
|
|
}
|
|
|
|
// Read the header in (including extended header if present)
|
|
const size_t MAX_HEADER_SIZE = sizeof(uint32_t) + sizeof(DDS_HEADER) + sizeof(DDS_HEADER_DXT10);
|
|
uint8_t header[MAX_HEADER_SIZE];
|
|
|
|
DWORD bytesRead = 0;
|
|
if ( !ReadFile( hFile.get(), header, MAX_HEADER_SIZE, &bytesRead, 0 ) )
|
|
{
|
|
return HRESULT_FROM_WIN32( GetLastError() );
|
|
}
|
|
|
|
DWORD convFlags = 0;
|
|
return _DecodeDDSHeader( header, bytesRead, flags, metadata, convFlags );
|
|
}
|
|
|
|
|
|
//-------------------------------------------------------------------------------------
|
|
// Load a DDS file in memory
|
|
//-------------------------------------------------------------------------------------
|
|
_Use_decl_annotations_
|
|
HRESULT LoadFromDDSMemory( LPCVOID pSource, size_t size, DWORD flags, TexMetadata* metadata, ScratchImage& image )
|
|
{
|
|
if ( !pSource || size == 0 )
|
|
return E_INVALIDARG;
|
|
|
|
image.Release();
|
|
|
|
DWORD convFlags = 0;
|
|
TexMetadata mdata;
|
|
HRESULT hr = _DecodeDDSHeader( pSource, size, flags, mdata, convFlags );
|
|
if ( FAILED(hr) )
|
|
return hr;
|
|
|
|
size_t offset = sizeof(uint32_t) + sizeof(DDS_HEADER);
|
|
if ( convFlags & CONV_FLAGS_DX10 )
|
|
offset += sizeof(DDS_HEADER_DXT10);
|
|
|
|
assert( offset <= size );
|
|
|
|
const uint32_t *pal8 = nullptr;
|
|
if ( convFlags & CONV_FLAGS_PAL8 )
|
|
{
|
|
pal8 = reinterpret_cast<const uint32_t*>( reinterpret_cast<const uint8_t*>(pSource) + offset );
|
|
assert( pal8 );
|
|
offset += ( 256 * sizeof(uint32_t) );
|
|
if ( size < offset )
|
|
return E_FAIL;
|
|
}
|
|
|
|
hr = image.Initialize( mdata );
|
|
if ( FAILED(hr) )
|
|
return hr;
|
|
|
|
auto pPixels = reinterpret_cast<LPCVOID>( reinterpret_cast<const uint8_t*>(pSource) + offset );
|
|
assert( pPixels );
|
|
hr = _CopyImage( pPixels, size - offset, mdata,
|
|
(flags & DDS_FLAGS_LEGACY_DWORD) ? CP_FLAGS_LEGACY_DWORD : CP_FLAGS_NONE, convFlags, pal8, image );
|
|
if ( FAILED(hr) )
|
|
{
|
|
image.Release();
|
|
return hr;
|
|
}
|
|
if ( metadata )
|
|
memcpy( metadata, &mdata, sizeof(TexMetadata) );
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
//-------------------------------------------------------------------------------------
|
|
// Load a DDS file from disk
|
|
//-------------------------------------------------------------------------------------
|
|
_Use_decl_annotations_
|
|
HRESULT LoadFromDDSFile( LPCWSTR szFile, DWORD flags, TexMetadata* metadata, ScratchImage& image )
|
|
{
|
|
if ( !szFile )
|
|
return E_INVALIDARG;
|
|
|
|
image.Release();
|
|
|
|
#if (_WIN32_WINNT >= 0x0602 /*_WIN32_WINNT_WIN8*/)
|
|
ScopedHandle hFile( safe_handle ( CreateFile2( szFile, GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, 0 ) ) );
|
|
#else
|
|
ScopedHandle hFile( safe_handle ( CreateFileW( szFile, GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING,
|
|
FILE_FLAG_SEQUENTIAL_SCAN, 0 ) ) );
|
|
#endif
|
|
|
|
if ( !hFile )
|
|
{
|
|
return HRESULT_FROM_WIN32( GetLastError() );
|
|
}
|
|
|
|
// Get the file size
|
|
LARGE_INTEGER fileSize = {0};
|
|
|
|
#if (_WIN32_WINNT >= _WIN32_WINNT_VISTA)
|
|
FILE_STANDARD_INFO fileInfo;
|
|
if ( !GetFileInformationByHandleEx( hFile.get(), FileStandardInfo, &fileInfo, sizeof(fileInfo) ) )
|
|
{
|
|
return HRESULT_FROM_WIN32( GetLastError() );
|
|
}
|
|
fileSize = fileInfo.EndOfFile;
|
|
#else
|
|
if ( !GetFileSizeEx( hFile.get(), &fileSize ) )
|
|
{
|
|
return HRESULT_FROM_WIN32( GetLastError() );
|
|
}
|
|
#endif
|
|
|
|
// File is too big for 32-bit allocation, so reject read (4 GB should be plenty large enough for a valid DDS file)
|
|
if ( fileSize.HighPart > 0 )
|
|
{
|
|
return HRESULT_FROM_WIN32( ERROR_FILE_TOO_LARGE );
|
|
}
|
|
|
|
// Need at least enough data to fill the standard header and magic number to be a valid DDS
|
|
if ( fileSize.LowPart < ( sizeof(DDS_HEADER) + sizeof(uint32_t) ) )
|
|
{
|
|
return E_FAIL;
|
|
}
|
|
|
|
// Read the header in (including extended header if present)
|
|
const size_t MAX_HEADER_SIZE = sizeof(uint32_t) + sizeof(DDS_HEADER) + sizeof(DDS_HEADER_DXT10);
|
|
uint8_t header[MAX_HEADER_SIZE];
|
|
|
|
DWORD bytesRead = 0;
|
|
if ( !ReadFile( hFile.get(), header, MAX_HEADER_SIZE, &bytesRead, 0 ) )
|
|
{
|
|
return HRESULT_FROM_WIN32( GetLastError() );
|
|
}
|
|
|
|
DWORD convFlags = 0;
|
|
TexMetadata mdata;
|
|
HRESULT hr = _DecodeDDSHeader( header, bytesRead, flags, mdata, convFlags );
|
|
if ( FAILED(hr) )
|
|
return hr;
|
|
|
|
DWORD offset = MAX_HEADER_SIZE;
|
|
|
|
if ( !(convFlags & CONV_FLAGS_DX10) )
|
|
{
|
|
// Must reset file position since we read more than the standard header above
|
|
LARGE_INTEGER filePos = { sizeof(uint32_t) + sizeof(DDS_HEADER), 0};
|
|
if ( !SetFilePointerEx( hFile.get(), filePos, 0, FILE_BEGIN ) )
|
|
{
|
|
return HRESULT_FROM_WIN32( GetLastError() );
|
|
}
|
|
|
|
offset = sizeof(uint32_t) + sizeof(DDS_HEADER);
|
|
}
|
|
|
|
std::unique_ptr<uint32_t[]> pal8;
|
|
if ( convFlags & CONV_FLAGS_PAL8 )
|
|
{
|
|
pal8.reset( new (std::nothrow) uint32_t[256] );
|
|
if ( !pal8 )
|
|
{
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
if ( !ReadFile( hFile.get(), pal8.get(), 256 * sizeof(uint32_t), &bytesRead, 0 ) )
|
|
{
|
|
return HRESULT_FROM_WIN32( GetLastError() );
|
|
}
|
|
|
|
if ( bytesRead != (256 * sizeof(uint32_t)) )
|
|
{
|
|
return E_FAIL;
|
|
}
|
|
|
|
offset += ( 256 * sizeof(uint32_t) );
|
|
}
|
|
|
|
DWORD remaining = fileSize.LowPart - offset;
|
|
if ( remaining == 0 )
|
|
return E_FAIL;
|
|
|
|
hr = image.Initialize( mdata );
|
|
if ( FAILED(hr) )
|
|
return hr;
|
|
|
|
if ( (convFlags & CONV_FLAGS_EXPAND) || (flags & DDS_FLAGS_LEGACY_DWORD) )
|
|
{
|
|
std::unique_ptr<uint8_t[]> temp( new (std::nothrow) uint8_t[ remaining ] );
|
|
if ( !temp )
|
|
{
|
|
image.Release();
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
if ( !ReadFile( hFile.get(), temp.get(), remaining, &bytesRead, 0 ) )
|
|
{
|
|
image.Release();
|
|
return HRESULT_FROM_WIN32( GetLastError() );
|
|
}
|
|
|
|
if ( bytesRead != remaining )
|
|
{
|
|
image.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
hr = _CopyImage( temp.get(), remaining, mdata,
|
|
(flags & DDS_FLAGS_LEGACY_DWORD) ? CP_FLAGS_LEGACY_DWORD : CP_FLAGS_NONE,
|
|
convFlags, pal8.get(), image );
|
|
if ( FAILED(hr) )
|
|
{
|
|
image.Release();
|
|
return hr;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ( remaining > image.GetPixelsSize() )
|
|
{
|
|
image.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
if ( !ReadFile( hFile.get(), image.GetPixels(), static_cast<DWORD>( image.GetPixelsSize() ), &bytesRead, 0 ) )
|
|
{
|
|
image.Release();
|
|
return HRESULT_FROM_WIN32( GetLastError() );
|
|
}
|
|
|
|
if ( convFlags & (CONV_FLAGS_SWIZZLE|CONV_FLAGS_NOALPHA) )
|
|
{
|
|
// Swizzle/copy image in place
|
|
hr = _CopyImageInPlace( convFlags, image );
|
|
if ( FAILED(hr) )
|
|
{
|
|
image.Release();
|
|
return hr;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( metadata )
|
|
memcpy( metadata, &mdata, sizeof(TexMetadata) );
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
//-------------------------------------------------------------------------------------
|
|
// Save a DDS file to memory
|
|
//-------------------------------------------------------------------------------------
|
|
_Use_decl_annotations_
|
|
HRESULT SaveToDDSMemory( const Image* images, size_t nimages, const TexMetadata& metadata, DWORD flags, Blob& blob )
|
|
{
|
|
if ( !images || (nimages == 0) )
|
|
return E_INVALIDARG;
|
|
|
|
// Determine memory required
|
|
size_t required = 0;
|
|
HRESULT hr = _EncodeDDSHeader( metadata, flags, 0, 0, required );
|
|
if ( FAILED(hr) )
|
|
return hr;
|
|
|
|
for( size_t i = 0; i < nimages; ++i )
|
|
{
|
|
required += images[ i ].slicePitch;
|
|
if ( !images[ i ].pixels )
|
|
return E_POINTER;
|
|
}
|
|
|
|
assert( required > 0 );
|
|
|
|
blob.Release();
|
|
|
|
hr = blob.Initialize( required );
|
|
if ( FAILED(hr) )
|
|
return hr;
|
|
|
|
auto pDestination = reinterpret_cast<uint8_t*>( blob.GetBufferPointer() );
|
|
assert( pDestination );
|
|
|
|
hr = _EncodeDDSHeader( metadata, flags, pDestination, blob.GetBufferSize(), required );
|
|
if ( FAILED(hr) )
|
|
{
|
|
blob.Release();
|
|
return hr;
|
|
}
|
|
|
|
size_t remaining = blob.GetBufferSize() - required;
|
|
pDestination += required;
|
|
|
|
if ( !remaining )
|
|
{
|
|
blob.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
switch( metadata.dimension )
|
|
{
|
|
case DDS_DIMENSION_TEXTURE1D:
|
|
case DDS_DIMENSION_TEXTURE2D:
|
|
{
|
|
size_t index = 0;
|
|
for( size_t item = 0; item < metadata.arraySize; ++item )
|
|
{
|
|
for( size_t level = 0; level < metadata.mipLevels; ++level )
|
|
{
|
|
if ( index >= nimages )
|
|
{
|
|
blob.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
size_t pixsize = images[ index ].slicePitch;
|
|
if ( memcpy_s( pDestination, remaining, images[ index ].pixels, pixsize ) )
|
|
{
|
|
blob.Release();
|
|
return E_FAIL;
|
|
}
|
|
pDestination += pixsize;
|
|
remaining -= pixsize;
|
|
|
|
++index;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case DDS_DIMENSION_TEXTURE3D:
|
|
{
|
|
if ( metadata.arraySize != 1 )
|
|
{
|
|
blob.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
size_t d = metadata.depth;
|
|
|
|
size_t index = 0;
|
|
for( size_t level = 0; level < metadata.mipLevels; ++level )
|
|
{
|
|
for( size_t slice = 0; slice < d; ++slice )
|
|
{
|
|
if ( index >= nimages )
|
|
{
|
|
blob.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
size_t pixsize = images[ index ].slicePitch;
|
|
if ( memcpy_s( pDestination, remaining, images[ index ].pixels, pixsize ) )
|
|
{
|
|
blob.Release();
|
|
return E_FAIL;
|
|
}
|
|
pDestination += pixsize;
|
|
remaining -= pixsize;
|
|
|
|
++index;
|
|
}
|
|
|
|
if ( d > 1 )
|
|
d >>= 1;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
blob.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
|
|
//-------------------------------------------------------------------------------------
|
|
// Save a DDS file to disk
|
|
//-------------------------------------------------------------------------------------
|
|
_Use_decl_annotations_
|
|
HRESULT SaveToDDSFile( const Image* images, size_t nimages, const TexMetadata& metadata, DWORD flags, LPCWSTR szFile )
|
|
{
|
|
if ( !szFile )
|
|
return E_INVALIDARG;
|
|
|
|
// Create DDS Header
|
|
const size_t MAX_HEADER_SIZE = sizeof(uint32_t) + sizeof(DDS_HEADER) + sizeof(DDS_HEADER_DXT10);
|
|
uint8_t header[MAX_HEADER_SIZE];
|
|
size_t required;
|
|
HRESULT hr = _EncodeDDSHeader( metadata, flags, header, MAX_HEADER_SIZE, required );
|
|
if ( FAILED(hr) )
|
|
return hr;
|
|
|
|
// Create file and write header
|
|
#if (_WIN32_WINNT >= 0x0602 /*_WIN32_WINNT_WIN8*/)
|
|
ScopedHandle hFile( safe_handle( CreateFile2( szFile, GENERIC_WRITE, 0, CREATE_ALWAYS, 0 ) ) );
|
|
#else
|
|
ScopedHandle hFile( safe_handle( CreateFileW( szFile, GENERIC_WRITE, 0, 0, CREATE_ALWAYS, 0, 0 ) ) );
|
|
#endif
|
|
if ( !hFile )
|
|
{
|
|
return HRESULT_FROM_WIN32( GetLastError() );
|
|
}
|
|
|
|
DWORD bytesWritten;
|
|
if ( !WriteFile( hFile.get(), header, static_cast<DWORD>( required ), &bytesWritten, 0 ) )
|
|
{
|
|
return HRESULT_FROM_WIN32( GetLastError() );
|
|
}
|
|
|
|
if ( bytesWritten != required )
|
|
{
|
|
return E_FAIL;
|
|
}
|
|
|
|
// Write images
|
|
switch( metadata.dimension )
|
|
{
|
|
case DDS_DIMENSION_TEXTURE1D:
|
|
case DDS_DIMENSION_TEXTURE2D:
|
|
{
|
|
size_t index = 0;
|
|
for( size_t item = 0; item < metadata.arraySize; ++item )
|
|
{
|
|
for( size_t level = 0; level < metadata.mipLevels; ++level, ++index )
|
|
{
|
|
if ( index >= nimages )
|
|
return E_FAIL;
|
|
|
|
if ( !images[ index ].pixels )
|
|
return E_POINTER;
|
|
|
|
size_t pixsize = images[ index ].slicePitch;
|
|
|
|
if ( !WriteFile( hFile.get(), images[ index ].pixels, static_cast<DWORD>( pixsize ), &bytesWritten, 0 ) )
|
|
{
|
|
return HRESULT_FROM_WIN32( GetLastError() );
|
|
}
|
|
|
|
if ( bytesWritten != pixsize )
|
|
{
|
|
return E_FAIL;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case DDS_DIMENSION_TEXTURE3D:
|
|
{
|
|
if ( metadata.arraySize != 1 )
|
|
return E_FAIL;
|
|
|
|
size_t d = metadata.depth;
|
|
|
|
size_t index = 0;
|
|
for( size_t level = 0; level < metadata.mipLevels; ++level )
|
|
{
|
|
for( size_t slice = 0; slice < d; ++slice, ++index )
|
|
{
|
|
if ( index >= nimages )
|
|
return E_FAIL;
|
|
|
|
if ( !images[ index ].pixels )
|
|
return E_POINTER;
|
|
|
|
size_t pixsize = images[ index ].slicePitch;
|
|
|
|
if ( !WriteFile( hFile.get(), images[ index ].pixels, static_cast<DWORD>( pixsize ), &bytesWritten, 0 ) )
|
|
{
|
|
return HRESULT_FROM_WIN32( GetLastError() );
|
|
}
|
|
|
|
if ( bytesWritten != pixsize )
|
|
{
|
|
return E_FAIL;
|
|
}
|
|
}
|
|
|
|
if ( d > 1 )
|
|
d >>= 1;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return E_FAIL;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
}; // namespace
|