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Parse DDS;

This commit is contained in:
bjorn 2017-07-22 03:42:05 -07:00
parent b25d345e72
commit 344320a19d
3 changed files with 320 additions and 0 deletions
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199
src/lib/dds.h Normal file
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@ -0,0 +1,199 @@
#include <stdint.h>
#include <stddef.h>
#include "lib/vec/vec.h"
#pragma once
typedef enum DDPF {
DDPF_ALPHAPIXELS = 0x000001,
DDPF_ALPHA = 0x000002,
DDPF_FOURCC = 0x000004,
DDPF_RGB = 0x000040,
DDPF_YUV = 0x000200,
DDPF_LUMINANCE = 0x020000
} DDPF;
typedef enum D3D10ResourceDimension {
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
} D3D10ResourceDimension;
typedef enum DXGIFormat {
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
} DXGIFormat;
typedef struct DDSPixelFormat {
uint32_t size;
uint32_t flags;
uint32_t fourCC;
uint32_t rgbBitCount;
uint32_t rBitMask;
uint32_t gBitMask;
uint32_t bBitMask;
uint32_t aBitMask;
} DDSPixelFormat;
typedef struct DDSHeader {
uint32_t size;
uint32_t flags;
uint32_t height;
uint32_t width;
uint32_t pitchOrLinearSize;
uint32_t depth;
uint32_t mipMapCount;
uint32_t reserved[11];
DDSPixelFormat format;
uint32_t caps1;
uint32_t caps2;
uint32_t caps3;
uint32_t caps4;
uint32_t reserved2;
} DDSHeader;
typedef struct DDSHeader10 {
DXGIFormat dxgiFormat;
D3D10ResourceDimension resourceDimension;
uint32_t miscFlag;
uint32_t arraySize;
uint32_t reserved;
} DDSHeader10;
typedef enum {
DDS_FORMAT_DXT1,
DDS_FORMAT_DXT3,
DDS_FORMAT_DXT5,
DDS_FORMAT_UNKNOWN
} DDSFormat;
int ddsParse(uint8_t* data, size_t size, ptrdiff_t* offset, DDSHeader* header, DDSHeader10* header10, DDSFormat* format);

113
src/loaders/texture.c
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@ -1,4 +1,6 @@
#include "loaders/texture.h"
#include "math/math.h"
#include "lib/dds.h"
#include "lib/stb/stb_image.h"
#include <stdlib.h>
#include <string.h>
@ -38,6 +40,111 @@ const TextureFormat FORMAT_DXT5 = {
.blockBytes = 16
};
#define FOUR_CC(a, b, c, d) ((uint32_t) (((d)<<24) | ((c)<<16) | ((b)<<8) | (a)))
static int parseDDS(uint8_t* data, size_t size, TextureData* textureData) {
if (size < sizeof(uint32_t) + sizeof(DDSHeader) || *(uint32_t*) data != FOUR_CC('D', 'D', 'S', ' ')) {
return 1;
}
// Header
size_t offset = sizeof(uint32_t);
DDSHeader* header = (DDSHeader*) (data + offset);
offset += sizeof(DDSHeader);
if (header->size != sizeof(DDSHeader) || header->format.size != sizeof(DDSPixelFormat)) {
return 1;
}
// DX10 header
if ((header->format.flags & DDPF_FOURCC) && (header->format.fourCC == FOUR_CC('D', 'X', '1', '0'))) {
if (size < (sizeof(uint32_t) + sizeof(DDSHeader) + sizeof(DDSHeader10))) {
return 1;
}
DDSHeader10* header10 = (DDSHeader10*) (data + offset);
offset += sizeof(DDSHeader10);
// Only accept 2D textures
D3D10ResourceDimension dimension = header10->resourceDimension;
if (dimension != D3D10_RESOURCE_DIMENSION_TEXTURE2D && dimension != D3D10_RESOURCE_DIMENSION_UNKNOWN) {
return 1;
}
// Can't deal with texture arrays and cubemaps.
if (header10->arraySize > 1) {
return 1;
}
// Ensure DXT 1/3/5
switch (header10->dxgiFormat) {
case DXGI_FORMAT_BC1_TYPELESS:
case DXGI_FORMAT_BC1_UNORM:
case DXGI_FORMAT_BC1_UNORM_SRGB:
textureData->format = FORMAT_DXT1;
break;
case DXGI_FORMAT_BC2_TYPELESS:
case DXGI_FORMAT_BC2_UNORM:
case DXGI_FORMAT_BC2_UNORM_SRGB:
textureData->format = FORMAT_DXT3;
break;
case DXGI_FORMAT_BC3_TYPELESS:
case DXGI_FORMAT_BC3_UNORM:
case DXGI_FORMAT_BC3_UNORM_SRGB:
textureData->format = FORMAT_DXT5;
break;
default:
return 1;
}
} else {
if ((header->format.flags & DDPF_FOURCC) == 0) {
return 1;
}
// Ensure DXT 1/3/5
switch (header->format.fourCC) {
case FOUR_CC('D', 'X', 'T', '1'):
textureData->format = FORMAT_DXT1;
return DDS_FORMAT_DXT1;
case FOUR_CC('D', 'X', 'T', '3'):
textureData->format = FORMAT_DXT3;
break;
case FOUR_CC('D', 'X', 'T', '5'):
textureData->format = FORMAT_DXT5;
break;
default:
return 1;
}
}
int width = textureData->width = header->width;
int height = textureData->height = header->height;
int mipmapCount = header->mipMapCount;
// Load mipmaps
vec_init(&textureData->mipmaps);
for (int i = 0; i < mipmapCount; i++) {
size_t numBlocksWide = width ? MAX(1, (width + 3) / 4) : 0;
size_t numBlocksHigh = height ? MAX(1, (height + 3) / 4) : 0;
size_t mipmapSize = numBlocksWide * numBlocksHigh * textureData->format.blockBytes;
// Overflow check
if (mipmapSize == 0 || (offset + mipmapSize) > size) {
vec_deinit(&textureData->mipmaps);
return 1;
}
Mipmap mipmap = { .width = width, .height = height, .data = &data[offset], .size = mipmapSize };
vec_push(&textureData->mipmaps, mipmap);
offset += mipmapSize;
width >>= 1;
height >>= 1;
}
textureData->data = NULL;
return 0;
}
TextureData* lovrTextureDataGetBlank(int width, int height, uint8_t value, TextureFormat format) {
TextureData* textureData = malloc(sizeof(TextureData));
if (!textureData) return NULL;
@ -66,6 +173,12 @@ TextureData* lovrTextureDataFromBlob(Blob* blob) {
TextureData* textureData = malloc(sizeof(TextureData));
if (!textureData) return NULL;
if (!parseDDS(blob->data, blob->size, textureData)) {
textureData->blob = blob;
lovrRetain(&blob->ref);
return textureData;
}
stbi_set_flip_vertically_on_load(0);
textureData->format = FORMAT_RGBA;
textureData->data = stbi_load_from_memory(blob->data, blob->size, &textureData->width, &textureData->height, NULL, 4);

8
src/loaders/texture.h
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@ -14,13 +14,21 @@ typedef struct {
extern const TextureFormat FORMAT_RGB, FORMAT_RGBA, FORMAT_DXT1, FORMAT_DXT3, FORMAT_DXT5;
typedef struct {
int width;
int height;
void* data;
size_t size;
} Mipmap;
typedef vec_t(Mipmap) vec_mipmap_t;
typedef struct {
int width;
int height;
TextureFormat format;
void* data;
vec_mipmap_t mipmaps;
Blob* blob;
} TextureData;
TextureData* lovrTextureDataGetBlank(int width, int height, uint8_t value, TextureFormat format);