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xash3d-fwgs/engine/common/imagelib/img_dds.h
Ivan Avdeev a251600c8a
engine: common: imagelib: add KTX2 support (#1455)
* engine: common: imagelib: add KTX2 support

Adds basic KTX2 support for a few compressed formats. KTX2 essentially
is a Vulkan-centric texture format that supports literally hundreds of
pixel formats.
For now only support for these is added:
- `VK_FORMAT_BC4_UNORM_BLOCK`
- `VK_FORMAT_BC4_SNORM_BLOCK`
- `VK_FORMAT_BC5_UNORM_BLOCK`
- `VK_FORMAT_BC5_SNORM_BLOCK`
- `VK_FORMAT_BC6H_UFLOAT_BLOCK`
- `VK_FORMAT_BC6H_SFLOAT_BLOCK`
- `VK_FORMAT_BC7_UNORM_BLOCK`
- `VK_FORMAT_BC7_SRGB_BLOCK`

Adding more formats is relatively straightforward:
- Copy format definition from `VkFormat` enum in `vulkan_core.h`
- Add a new definition into `pixformat_t` enum.
- Add format size calculation into `Image_ComputeSize()`

While we're at it, also adds a few new formats to DDS:
- BC4_UNORM -- PF_BC4_UNSIGNED
- BC4_SNORM -- PF_BC4_SIGNED
- BC5_UNORM -- PF_BC5_UNSIGNED
- BC5_SNORM -- PF_BC5_SIGNED
- BC7 is expanded into BC7_UNORM and BC7_SRGB

ref_gl and ref_soft code is updated where it made sense. But not tested
really. Support for these formats has been tested with ref_vk.

* address spaces-vs-parentheses formatting where noticed

* parenthesize sizeofs

* move ktx2.h to imagelib as img_ktx2.h; massage it a bit

* use SetBits() instead of |=

* remove stale TODO comments
2023-10-18 10:31:40 +03:00

265 lines
8.7 KiB
C

/*
img_dds.h - dds format reference
Copyright (C) 2015 Uncle Mike
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
*/
#ifndef IMG_DDS_H
#define IMG_DDS_H
/*
========================================================================
.DDS image format
========================================================================
*/
#define DDSHEADER ((' '<<24)+('S'<<16)+('D'<<8)+'D') // little-endian "DDS "
// various four-cc types
#define TYPE_DXT1 (('1'<<24)+('T'<<16)+('X'<<8)+'D') // little-endian "DXT1"
#define TYPE_DXT2 (('2'<<24)+('T'<<16)+('X'<<8)+'D') // little-endian "DXT2"
#define TYPE_DXT3 (('3'<<24)+('T'<<16)+('X'<<8)+'D') // little-endian "DXT3"
#define TYPE_DXT4 (('4'<<24)+('T'<<16)+('X'<<8)+'D') // little-endian "DXT4"
#define TYPE_DXT5 (('5'<<24)+('T'<<16)+('X'<<8)+'D') // little-endian "DXT5"
#define TYPE_DX10 (('0'<<24)+('1'<<16)+('X'<<8)+'D') // little-endian "DX10"
#define TYPE_ATI1 (('1'<<24)+('I'<<16)+('T'<<8)+'A') // little-endian "ATI1"
#define TYPE_ATI2 (('2'<<24)+('I'<<16)+('T'<<8)+'A') // little-endian "ATI2"
#define TYPE_BC5S (('S'<<24)+('5'<<16)+('C'<<8)+'B') // little-endian "BC5S"
#define TYPE_BC4S (('S'<<24)+('4'<<16)+('C'<<8)+'B') // little-endian "BC4S"
#define TYPE_BC4U (('U'<<24)+('4'<<16)+('C'<<8)+'B') // little-endian "BC4U"
#define TYPE_RXGB (('B'<<24)+('G'<<16)+('X'<<8)+'R') // little-endian "RXGB" doom3 normalmaps
#define TYPE_$ (('\0'<<24)+('\0'<<16)+('\0'<<8)+'$') // little-endian "$"
#define TYPE_o (('\0'<<24)+('\0'<<16)+('\0'<<8)+'o') // little-endian "o"
#define TYPE_p (('\0'<<24)+('\0'<<16)+('\0'<<8)+'p') // little-endian "p"
#define TYPE_q (('\0'<<24)+('\0'<<16)+('\0'<<8)+'q') // little-endian "q"
#define TYPE_r (('\0'<<24)+('\0'<<16)+('\0'<<8)+'r') // little-endian "r"
#define TYPE_s (('\0'<<24)+('\0'<<16)+('\0'<<8)+'s') // little-endian "s"
#define TYPE_t (('\0'<<24)+('\0'<<16)+('\0'<<8)+'t') // little-endian "t"
// dwFlags1
#define DDS_CAPS 0x00000001L
#define DDS_HEIGHT 0x00000002L
#define DDS_WIDTH 0x00000004L
#define DDS_PITCH 0x00000008L
#define DDS_PIXELFORMAT 0x00001000L
#define DDS_MIPMAPCOUNT 0x00020000L
#define DDS_LINEARSIZE 0x00080000L
#define DDS_DEPTH 0x00800000L
// dwFlags2
#define DDS_ALPHAPIXELS 0x00000001L
#define DDS_ALPHA 0x00000002L
#define DDS_FOURCC 0x00000004L
#define DDS_RGB 0x00000040L
#define DDS_RGBA 0x00000041L // (DDS_RGB|DDS_ALPHAPIXELS)
#define DDS_LUMINANCE 0x00020000L
#define DDS_DUDV 0x00080000L
// dwCaps1
#define DDS_COMPLEX 0x00000008L
#define DDS_TEXTURE 0x00001000L
#define DDS_MIPMAP 0x00400000L
// dwCaps2
#define DDS_CUBEMAP 0x00000200L
#define DDS_CUBEMAP_POSITIVEX 0x00000400L
#define DDS_CUBEMAP_NEGATIVEX 0x00000800L
#define DDS_CUBEMAP_POSITIVEY 0x00001000L
#define DDS_CUBEMAP_NEGATIVEY 0x00002000L
#define DDS_CUBEMAP_POSITIVEZ 0x00004000L
#define DDS_CUBEMAP_NEGATIVEZ 0x00008000L
#define DDS_CUBEMAP_ALL_SIDES 0x0000FC00L
#define DDS_VOLUME 0x00200000L
typedef enum
{
DXGI_FORMAT_UNKNOWN = 0,
DXGI_FORMAT_R32G32B32A32_TYPELESS = 1,
DXGI_FORMAT_R32G32B32A32_FLOAT = 2,
DXGI_FORMAT_R32G32B32A32_UINT = 3,
DXGI_FORMAT_R32G32B32A32_SINT = 4,
DXGI_FORMAT_R32G32B32_TYPELESS = 5,
DXGI_FORMAT_R32G32B32_FLOAT = 6,
DXGI_FORMAT_R32G32B32_UINT = 7,
DXGI_FORMAT_R32G32B32_SINT = 8,
DXGI_FORMAT_R16G16B16A16_TYPELESS = 9,
DXGI_FORMAT_R16G16B16A16_FLOAT = 10,
DXGI_FORMAT_R16G16B16A16_UNORM = 11,
DXGI_FORMAT_R16G16B16A16_UINT = 12,
DXGI_FORMAT_R16G16B16A16_SNORM = 13,
DXGI_FORMAT_R16G16B16A16_SINT = 14,
DXGI_FORMAT_R32G32_TYPELESS = 15,
DXGI_FORMAT_R32G32_FLOAT = 16,
DXGI_FORMAT_R32G32_UINT = 17,
DXGI_FORMAT_R32G32_SINT = 18,
DXGI_FORMAT_R32G8X24_TYPELESS = 19,
DXGI_FORMAT_D32_FLOAT_S8X24_UINT = 20,
DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS = 21,
DXGI_FORMAT_X32_TYPELESS_G8X24_UINT = 22,
DXGI_FORMAT_R10G10B10A2_TYPELESS = 23,
DXGI_FORMAT_R10G10B10A2_UNORM = 24,
DXGI_FORMAT_R10G10B10A2_UINT = 25,
DXGI_FORMAT_R11G11B10_FLOAT = 26,
DXGI_FORMAT_R8G8B8A8_TYPELESS = 27,
DXGI_FORMAT_R8G8B8A8_UNORM = 28,
DXGI_FORMAT_R8G8B8A8_UNORM_SRGB = 29,
DXGI_FORMAT_R8G8B8A8_UINT = 30,
DXGI_FORMAT_R8G8B8A8_SNORM = 31,
DXGI_FORMAT_R8G8B8A8_SINT = 32,
DXGI_FORMAT_R16G16_TYPELESS = 33,
DXGI_FORMAT_R16G16_FLOAT = 34,
DXGI_FORMAT_R16G16_UNORM = 35,
DXGI_FORMAT_R16G16_UINT = 36,
DXGI_FORMAT_R16G16_SNORM = 37,
DXGI_FORMAT_R16G16_SINT = 38,
DXGI_FORMAT_R32_TYPELESS = 39,
DXGI_FORMAT_D32_FLOAT = 40,
DXGI_FORMAT_R32_FLOAT = 41,
DXGI_FORMAT_R32_UINT = 42,
DXGI_FORMAT_R32_SINT = 43,
DXGI_FORMAT_R24G8_TYPELESS = 44,
DXGI_FORMAT_D24_UNORM_S8_UINT = 45,
DXGI_FORMAT_R24_UNORM_X8_TYPELESS = 46,
DXGI_FORMAT_X24_TYPELESS_G8_UINT = 47,
DXGI_FORMAT_R8G8_TYPELESS = 48,
DXGI_FORMAT_R8G8_UNORM = 49,
DXGI_FORMAT_R8G8_UINT = 50,
DXGI_FORMAT_R8G8_SNORM = 51,
DXGI_FORMAT_R8G8_SINT = 52,
DXGI_FORMAT_R16_TYPELESS = 53,
DXGI_FORMAT_R16_FLOAT = 54,
DXGI_FORMAT_D16_UNORM = 55,
DXGI_FORMAT_R16_UNORM = 56,
DXGI_FORMAT_R16_UINT = 57,
DXGI_FORMAT_R16_SNORM = 58,
DXGI_FORMAT_R16_SINT = 59,
DXGI_FORMAT_R8_TYPELESS = 60,
DXGI_FORMAT_R8_UNORM = 61,
DXGI_FORMAT_R8_UINT = 62,
DXGI_FORMAT_R8_SNORM = 63,
DXGI_FORMAT_R8_SINT = 64,
DXGI_FORMAT_A8_UNORM = 65,
DXGI_FORMAT_R1_UNORM = 66,
DXGI_FORMAT_R9G9B9E5_SHAREDEXP = 67,
DXGI_FORMAT_R8G8_B8G8_UNORM = 68,
DXGI_FORMAT_G8R8_G8B8_UNORM = 69,
DXGI_FORMAT_BC1_TYPELESS = 70,
DXGI_FORMAT_BC1_UNORM = 71,
DXGI_FORMAT_BC1_UNORM_SRGB = 72,
DXGI_FORMAT_BC2_TYPELESS = 73,
DXGI_FORMAT_BC2_UNORM = 74,
DXGI_FORMAT_BC2_UNORM_SRGB = 75,
DXGI_FORMAT_BC3_TYPELESS = 76,
DXGI_FORMAT_BC3_UNORM = 77,
DXGI_FORMAT_BC3_UNORM_SRGB = 78,
DXGI_FORMAT_BC4_TYPELESS = 79,
DXGI_FORMAT_BC4_UNORM = 80,
DXGI_FORMAT_BC4_SNORM = 81,
DXGI_FORMAT_BC5_TYPELESS = 82,
DXGI_FORMAT_BC5_UNORM = 83,
DXGI_FORMAT_BC5_SNORM = 84,
DXGI_FORMAT_B5G6R5_UNORM = 85,
DXGI_FORMAT_B5G5R5A1_UNORM = 86,
DXGI_FORMAT_B8G8R8A8_UNORM = 87,
DXGI_FORMAT_B8G8R8X8_UNORM = 88,
DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM = 89,
DXGI_FORMAT_B8G8R8A8_TYPELESS = 90,
DXGI_FORMAT_B8G8R8A8_UNORM_SRGB = 91,
DXGI_FORMAT_B8G8R8X8_TYPELESS = 92,
DXGI_FORMAT_B8G8R8X8_UNORM_SRGB = 93,
DXGI_FORMAT_BC6H_TYPELESS = 94,
DXGI_FORMAT_BC6H_UF16 = 95,
DXGI_FORMAT_BC6H_SF16 = 96,
DXGI_FORMAT_BC7_TYPELESS = 97,
DXGI_FORMAT_BC7_UNORM = 98,
DXGI_FORMAT_BC7_UNORM_SRGB = 99,
DXGI_FORMAT_AYUV = 100,
DXGI_FORMAT_Y410 = 101,
DXGI_FORMAT_Y416 = 102,
DXGI_FORMAT_NV12 = 103,
DXGI_FORMAT_P010 = 104,
DXGI_FORMAT_P016 = 105,
DXGI_FORMAT_420_OPAQUE = 106,
DXGI_FORMAT_YUY2 = 107,
DXGI_FORMAT_Y210 = 108,
DXGI_FORMAT_Y216 = 109,
DXGI_FORMAT_NV11 = 110,
DXGI_FORMAT_AI44 = 111,
DXGI_FORMAT_IA44 = 112,
DXGI_FORMAT_P8 = 113,
DXGI_FORMAT_A8P8 = 114,
DXGI_FORMAT_B4G4R4A4_UNORM = 115,
DXGI_FORMAT_P208 = 130,
DXGI_FORMAT_V208 = 131,
DXGI_FORMAT_V408 = 132,
DXGI_FORMAT_SAMPLER_FEEDBACK_MIN_MIP_OPAQUE,
DXGI_FORMAT_SAMPLER_FEEDBACK_MIP_REGION_USED_OPAQUE,
DXGI_FORMAT_FORCE_UINT = 0xffffffff
} dxgi_format_t;
typedef enum
{
D3D10_RESOURCE_DIMENSION_UNKNOWN = 0,
D3D10_RESOURCE_DIMENSION_BUFFER = 1,
D3D10_RESOURCE_DIMENSION_TEXTURE1D = 2,
D3D10_RESOURCE_DIMENSION_TEXTURE2D = 3,
D3D10_RESOURCE_DIMENSION_TEXTURE3D = 4
} dds_resource_dimension_t;
typedef struct dds_pf_s
{
uint32_t dwSize;
uint32_t dwFlags;
uint32_t dwFourCC;
uint32_t dwRGBBitCount;
uint32_t dwRBitMask;
uint32_t dwGBitMask;
uint32_t dwBBitMask;
uint32_t dwABitMask;
} dds_pixf_t;
// DDCAPS2
typedef struct dds_caps_s
{
uint32_t dwCaps1;
uint32_t dwCaps2;
uint32_t dwCaps3; // currently unused
uint32_t dwCaps4; // currently unused
} dds_caps_t;
typedef struct dds_header_dxt10_s
{
dxgi_format_t dxgiFormat;
dds_resource_dimension_t resourceDimension;
uint32_t miscFlag;
uint32_t arraySize;
uint32_t miscFlags2;
} dds_header_dxt10_t;
typedef struct dds_s
{
uint32_t dwIdent; // must matched with DDSHEADER
uint32_t dwSize;
uint32_t dwFlags; // determines what fields are valid
uint32_t dwHeight;
uint32_t dwWidth;
uint32_t dwLinearSize; // Formless late-allocated optimized surface size
uint32_t dwDepth; // depth if a volume texture
uint32_t dwMipMapCount; // number of mip-map levels requested
uint32_t dwAlphaBitDepth; // depth of alpha buffer requested
uint32_t dwReserved1[10]; // reserved for future expansions
dds_pixf_t dsPixelFormat;
dds_caps_t dsCaps;
uint32_t dwTextureStage;
} dds_t;
#endif // IMG_DDS_H