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ztex2dds.cpp
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ztex2dds.cpp
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/**
* File modified for openZE. Based on NicoDEs ztextools.
*/
#include "ztex2dds.h"
#include <algorithm>
#include <string>
#include "ztex.h"
#include <assert.h>
#include <inttypes.h>
#include <math.h>
#include <squish.h>
#include <string.h>
#include "utils/logger.h"
#define ZTEX2DDS_ERROR_NONE 0 /* No Error */
#define ZTEX2DDS_ERROR_ARGS 1 /* Invalid Params / Syntax */
#define ZTEX2DDS_ERROR_OPEN 2 /* Failed to Open Input */
#define ZTEX2DDS_ERROR_READ 4 /* Failed to Read Input */
#define ZTEX2DDS_ERROR_CREATE 5 /* Failed to Create Output */
#define ZTEX2DDS_ERROR_WRITE 6 /* Failed to Write Output */
#define ZTEX2DDS_ERROR_FORMAT 7 /* Invalid Input File Format */
namespace ZenLib
{
namespace ZenLoad
{
/**
* @brief Returns whether x is a power of two
*/
static bool IsPowerOfTwo(unsigned long x)
{
if (x == 0)
return false;
while ((x & 1) == 0)
x >>= 1;
return (1 == x);
}
/*FIXME: Scanline Alignment */
static uint32_t GetMipmapSize(unsigned long format, unsigned long width, unsigned long height, int level)
{
unsigned long x;
unsigned long y;
int i;
x = std::max(1ul, width);
y = std::max(1ul, height);
for (i = 0; i < level; i++)
{
if (x > 1)
x >>= 1;
if (y > 1)
y >>= 1;
}
switch (format)
{
case ZTEXFMT_B8G8R8A8:
case ZTEXFMT_R8G8B8A8:
case ZTEXFMT_A8B8G8R8:
case ZTEXFMT_A8R8G8B8:
return x * y * 4;
case ZTEXFMT_B8G8R8:
case ZTEXFMT_R8G8B8:
return x * y * 3;
case ZTEXFMT_A4R4G4B4:
case ZTEXFMT_A1R5G5B5:
case ZTEXFMT_R5G6B5:
return x * y * 2;
case ZTEXFMT_P8:
return x * y;
case ZTEXFMT_DXT1:
return std::max(1ul, x / 4) * std::max(1ul, y / 4) * 8;
case ZTEXFMT_DXT2:
case ZTEXFMT_DXT3:
case ZTEXFMT_DXT4:
case ZTEXFMT_DXT5:
return std::max(1ul, x / 4) * std::max(1ul, y / 4) * 16;
default:
return 0;
}
}
/**
* @brief Utility function to read data from a vector safely
*/
static bool readVectorData(void* target, size_t start, size_t size, const std::vector<uint8_t>& data)
{
if (start + size > data.size())
return false;
memcpy(target, &data[start], size);
return true;
}
/**
* @brief Utility function to write to the end of a vector
*/
static bool writeVectorData(void* data, size_t size, std::vector<uint8_t>& target)
{
size_t sz = target.size();
target.resize(target.size() + size);
memcpy(&target[sz], data, size);
return true;
}
/**
* @brief Modified ZTEX to DDS conversion
*/
int convertZTEX2DDS(const std::vector<uint8_t>& ztexData, std::vector<uint8_t>& ddsData, bool optionForceARGB, int* pOutWidth, int* pOutHeight)
{
ZTEX_FILE_HEADER ZTexHeader;
uint32_t BytesRead = 0;
uint32_t DdsMagic;
uint32_t BytesWritten;
DDSURFACEDESC2 DdsHeader;
int MipmapCount;
int MipmapLevel;
int i;
ozRGBQUAD palentry;
uint32_t BufferSize;
uint8_t* Buffer;
uint32_t MipmapSize;
uint8_t* Mipmap;
ozRGBQUAD* Pixel32;
ozRGBTRIPLE* Pixel24;
uint8_t ColorTemp;
// Read header
if (!readVectorData(&ZTexHeader, 0, sizeof(ZTexHeader), ztexData))
return ZTEX2DDS_ERROR_READ;
if (pOutWidth)
*pOutWidth = ZTexHeader.TexInfo.Width;
if (pOutHeight)
*pOutHeight = ZTexHeader.TexInfo.Height;
BytesRead += sizeof(ZTexHeader);
/* 'ZTEX' */
if (ZTexHeader.Signature != ZTEX_FILE_SIGNATURE ||
ZTexHeader.Version != ZTEX_FILE_VERSION_0 ||
ZTexHeader.TexInfo.Format > ZTEXFMT_DXT5)
{
return ZTEX2DDS_ERROR_FORMAT;
}
/* 'DDS ' */
DdsMagic = MAKEFOURCC('D', 'D', 'S', ' ');
if (!writeVectorData(&DdsMagic, sizeof(DdsMagic), ddsData))
{
return ZTEX2DDS_ERROR_WRITE;
}
/* DDSURFACEDESC2 */
memset(&DdsHeader, 0, sizeof(DdsHeader));
DdsHeader.dwSize = sizeof(DDSURFACEDESC2);
DdsHeader.dwFlags = DDSD_WIDTH | DDSD_HEIGHT | DDSD_PIXELFORMAT | DDSD_CAPS;
DdsHeader.ddsCaps.dwCaps1 = DDSCAPS_TEXTURE;
DdsHeader.dwHeight = ZTexHeader.TexInfo.Height;
DdsHeader.dwWidth = ZTexHeader.TexInfo.Width;
if (ZTexHeader.TexInfo.Format <= ZTEXFMT_P8)
{
DdsHeader.dwFlags |= DDSD_PITCH;
DdsHeader.dwPitchOrLinearSize =
GetMipmapSize(ZTexHeader.TexInfo.Format, DdsHeader.dwWidth, 1, 0);
}
else
{
DdsHeader.dwFlags |= DDSD_LINEARSIZE;
DdsHeader.dwPitchOrLinearSize =
GetMipmapSize(ZTexHeader.TexInfo.Format, DdsHeader.dwWidth, DdsHeader.dwHeight, 0);
}
if (ZTexHeader.TexInfo.MipMaps > 1)
{
DdsHeader.dwFlags |= DDSD_MIPMAPCOUNT;
DdsHeader.ddsCaps.dwCaps1 |= DDSCAPS_MIPMAP | DDSCAPS_COMPLEX;
DdsHeader.dwMipMapCount = ZTexHeader.TexInfo.MipMaps;
}
DdsHeader.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
switch (ZTexHeader.TexInfo.Format)
{
case ZTEXFMT_B8G8R8A8:
DdsHeader.ddpfPixelFormat.dwFlags = DDPF_RGB | DDPF_ALPHAPIXELS;
DdsHeader.ddpfPixelFormat.dwRGBBitCount = 32;
DdsHeader.ddpfPixelFormat.dwRBitMask = 0x0000FF00;
DdsHeader.ddpfPixelFormat.dwGBitMask = 0x00FF0000;
DdsHeader.ddpfPixelFormat.dwBBitMask = 0xFF000000;
DdsHeader.ddpfPixelFormat.dwRGBAlphaBitMask = 0x000000FF;
break;
case ZTEXFMT_R8G8B8A8:
DdsHeader.ddpfPixelFormat.dwFlags = DDPF_RGB | DDPF_ALPHAPIXELS;
DdsHeader.ddpfPixelFormat.dwRGBBitCount = 32;
DdsHeader.ddpfPixelFormat.dwRBitMask = 0xFF000000;
DdsHeader.ddpfPixelFormat.dwGBitMask = 0x00FF0000;
DdsHeader.ddpfPixelFormat.dwBBitMask = 0x0000FF00;
DdsHeader.ddpfPixelFormat.dwRGBAlphaBitMask = 0x000000FF;
break;
case ZTEXFMT_A8B8G8R8:
DdsHeader.ddpfPixelFormat.dwFlags = DDPF_RGB | DDPF_ALPHAPIXELS;
// DdsHeader.ddpfPixelFormat.dwFourCC = D3DFMT_A8B8G8R8; /* 32 */
DdsHeader.ddpfPixelFormat.dwRGBBitCount = 32;
DdsHeader.ddpfPixelFormat.dwRBitMask = 0x000000FF;
DdsHeader.ddpfPixelFormat.dwGBitMask = 0x0000FF00;
DdsHeader.ddpfPixelFormat.dwBBitMask = 0x00FF0000;
DdsHeader.ddpfPixelFormat.dwRGBAlphaBitMask = 0xFF000000;
break;
case ZTEXFMT_A8R8G8B8:
DdsHeader.ddpfPixelFormat.dwFlags = DDPF_RGB | DDPF_ALPHAPIXELS;
// DdsHeader.ddpfPixelFormat.dwFourCC = D3DFMT_A8R8G8B8; /* 21 */
DdsHeader.ddpfPixelFormat.dwRGBBitCount = 32;
DdsHeader.ddpfPixelFormat.dwRBitMask = 0x00FF0000;
DdsHeader.ddpfPixelFormat.dwGBitMask = 0x0000FF00;
DdsHeader.ddpfPixelFormat.dwBBitMask = 0x000000FF;
DdsHeader.ddpfPixelFormat.dwRGBAlphaBitMask = 0xFF000000;
break;
case ZTEXFMT_B8G8R8:
DdsHeader.ddpfPixelFormat.dwFlags = DDPF_RGB;
DdsHeader.ddpfPixelFormat.dwRGBBitCount = 24;
DdsHeader.ddpfPixelFormat.dwRBitMask = 0x000000FF;
DdsHeader.ddpfPixelFormat.dwGBitMask = 0x0000FF00;
DdsHeader.ddpfPixelFormat.dwBBitMask = 0x00FF0000;
break;
case ZTEXFMT_R8G8B8:
DdsHeader.ddpfPixelFormat.dwFlags = DDPF_RGB;
// DdsHeader.ddpfPixelFormat.dwFourCC = D3DFMT_R8G8B8; /* 20 */
DdsHeader.ddpfPixelFormat.dwRGBBitCount = 24;
DdsHeader.ddpfPixelFormat.dwRBitMask = 0x00FF0000;
DdsHeader.ddpfPixelFormat.dwGBitMask = 0x0000FF00;
DdsHeader.ddpfPixelFormat.dwBBitMask = 0x000000FF;
break;
case ZTEXFMT_A4R4G4B4:
DdsHeader.ddpfPixelFormat.dwFlags = DDPF_RGB | DDPF_ALPHAPIXELS;
// DdsHeader.ddpfPixelFormat.dwFourCC = D3DFMT_A4R4G4B4; /* 26 */
DdsHeader.ddpfPixelFormat.dwRGBBitCount = 16;
DdsHeader.ddpfPixelFormat.dwRBitMask = 0x00000F00;
DdsHeader.ddpfPixelFormat.dwGBitMask = 0x000000F0;
DdsHeader.ddpfPixelFormat.dwBBitMask = 0x0000000F;
DdsHeader.ddpfPixelFormat.dwRGBAlphaBitMask = 0x0000F000;
break;
case ZTEXFMT_A1R5G5B5:
DdsHeader.ddpfPixelFormat.dwFlags = DDPF_RGB | DDPF_ALPHAPIXELS;
// DdsHeader.ddpfPixelFormat.dwFourCC = D3DFMT_A1R5G5B5; /* 25 */
DdsHeader.ddpfPixelFormat.dwRGBBitCount = 16;
DdsHeader.ddpfPixelFormat.dwRBitMask = 0x00007C00;
DdsHeader.ddpfPixelFormat.dwGBitMask = 0x000003E0;
DdsHeader.ddpfPixelFormat.dwBBitMask = 0x0000001F;
DdsHeader.ddpfPixelFormat.dwRGBAlphaBitMask = 0x00008000;
break;
case ZTEXFMT_R5G6B5:
DdsHeader.ddpfPixelFormat.dwFlags = DDPF_RGB;
// DdsHeader.ddpfPixelFormat.dwFourCC = D3DFMT_R5G6B5; /* 23 */
DdsHeader.ddpfPixelFormat.dwRGBBitCount = 16;
DdsHeader.ddpfPixelFormat.dwRBitMask = 0x0000F800;
DdsHeader.ddpfPixelFormat.dwGBitMask = 0x000007E0;
DdsHeader.ddpfPixelFormat.dwBBitMask = 0x0000001F;
break;
case ZTEXFMT_P8:
DdsHeader.ddpfPixelFormat.dwFlags = DDPF_PALETTEINDEXED8;
// DdsHeader.ddpfPixelFormat.dwFourCC = D3DFMT_P8; /* 41 */
break;
case ZTEXFMT_DXT1:
DdsHeader.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
DdsHeader.ddpfPixelFormat.dwFourCC = MAKEFOURCC('D', 'X', 'T', '1');
break;
case ZTEXFMT_DXT2:
DdsHeader.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
DdsHeader.ddpfPixelFormat.dwFourCC = MAKEFOURCC('D', 'X', 'T', '2');
break;
case ZTEXFMT_DXT3:
DdsHeader.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
DdsHeader.ddpfPixelFormat.dwFourCC = MAKEFOURCC('D', 'X', 'T', '3');
break;
case ZTEXFMT_DXT4:
DdsHeader.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
DdsHeader.ddpfPixelFormat.dwFourCC = MAKEFOURCC('D', 'X', 'T', '4');
break;
case ZTEXFMT_DXT5:
DdsHeader.ddpfPixelFormat.dwFlags = DDPF_FOURCC;
DdsHeader.ddpfPixelFormat.dwFourCC = MAKEFOURCC('D', 'X', 'T', '5');
break;
}
if (optionForceARGB)
{
switch (ZTexHeader.TexInfo.Format)
{
case ZTEXFMT_B8G8R8A8:
case ZTEXFMT_R8G8B8A8:
case ZTEXFMT_A8B8G8R8:
DdsHeader.ddpfPixelFormat.dwRBitMask = 0x00FF0000;
DdsHeader.ddpfPixelFormat.dwGBitMask = 0x0000FF00;
DdsHeader.ddpfPixelFormat.dwBBitMask = 0x000000FF;
DdsHeader.ddpfPixelFormat.dwRGBAlphaBitMask = 0xFF000000;
break;
case ZTEXFMT_B8G8R8:
DdsHeader.ddpfPixelFormat.dwRBitMask = 0x00FF0000;
DdsHeader.ddpfPixelFormat.dwGBitMask = 0x0000FF00;
DdsHeader.ddpfPixelFormat.dwBBitMask = 0x000000FF;
break;
default:
break;
}
}
if (!writeVectorData(&DdsHeader, sizeof(DdsHeader), ddsData))
{
return ZTEX2DDS_ERROR_WRITE;
}
/* Palette */
if (ZTEXFMT_P8 == ZTexHeader.TexInfo.Format)
{
for (i = 0; i < ZTEX_PAL_ENTRIES; i++)
{
palentry.rgbReserved = 0x00;
if (!readVectorData(&palentry, BytesRead, sizeof(palentry), ztexData))
{
return ZTEX2DDS_ERROR_READ;
}
BytesRead += sizeof(palentry);
if (!writeVectorData(&palentry, sizeof(ozRGBQUAD), ddsData))
{
return ZTEX2DDS_ERROR_WRITE;
}
}
}
/* Mipmaps */
MipmapCount = std::max(1u, ZTexHeader.TexInfo.MipMaps);
BufferSize = 0;
for (MipmapLevel = 0; MipmapLevel < MipmapCount; MipmapLevel++)
BufferSize += GetMipmapSize(ZTexHeader.TexInfo.Format,
ZTexHeader.TexInfo.Width, ZTexHeader.TexInfo.Height, MipmapLevel);
Buffer = new uint8_t[BufferSize];
if (!Buffer)
{
return ZTEX2DDS_ERROR_READ;
}
if (!readVectorData(Buffer, BytesRead, BufferSize, ztexData))
{
return ZTEX2DDS_ERROR_READ;
}
BytesRead += BufferSize;
Mipmap = Buffer + BufferSize;
for (MipmapLevel = 0; MipmapLevel < MipmapCount; MipmapLevel++)
{
MipmapSize = GetMipmapSize(ZTexHeader.TexInfo.Format,
ZTexHeader.TexInfo.Width, ZTexHeader.TexInfo.Height, MipmapLevel);
Mipmap -= MipmapSize;
if (optionForceARGB)
{
Pixel32 = (ozRGBQUAD*)Mipmap;
Pixel24 = (ozRGBTRIPLE*)Mipmap;
switch (ZTexHeader.TexInfo.Format)
{
case ZTEXFMT_B8G8R8A8:
for (i = 0; i < (int)MipmapSize / 4; i++)
{
ColorTemp = Pixel32->rgbReserved;
Pixel32->rgbReserved = Pixel32->rgbBlue;
Pixel32->rgbBlue = ColorTemp;
ColorTemp = Pixel32->rgbRed;
Pixel32->rgbRed = Pixel32->rgbGreen;
Pixel32->rgbGreen = ColorTemp;
Pixel32++;
}
break;
case ZTEXFMT_R8G8B8A8:
for (i = 0; i < (int)MipmapSize / 4; i++)
{
ColorTemp = Pixel32->rgbBlue;
Pixel32->rgbBlue = Pixel32->rgbGreen;
Pixel32->rgbGreen = Pixel32->rgbRed;
Pixel32->rgbRed = Pixel32->rgbReserved;
Pixel32->rgbReserved = ColorTemp;
Pixel32++;
}
break;
case ZTEXFMT_A8B8G8R8:
for (i = 0; i < (int)MipmapSize / 4; i++)
{
ColorTemp = Pixel32->rgbBlue;
Pixel32->rgbBlue = Pixel32->rgbRed;
Pixel32->rgbRed = ColorTemp;
Pixel32++;
}
break;
case ZTEXFMT_B8G8R8:
for (i = 0; i < (int)MipmapSize / 3; i++)
{
ColorTemp = Pixel24->rgbtBlue;
Pixel24->rgbtBlue = Pixel24->rgbtRed;
Pixel24->rgbtRed = ColorTemp;
Pixel24++;
}
break;
default:
break;
}
}
if (!writeVectorData(Mipmap, MipmapSize, ddsData))
{
delete[] Buffer;
return ZTEX2DDS_ERROR_WRITE;
}
}
delete[] Buffer;
return ZTEX2DDS_ERROR_NONE;
}
static uint32_t ComputeSizeInBytes(int mip, int resolutionX, int resolutionY, bool dxt1)
{
int px = (int)std::max(1.0f, (float)floor(resolutionX / pow(2.0f, mip)));
int py = (int)std::max(1.0f, (float)floor(resolutionY / pow(2.0f, mip)));
//int px = TextureSize.x;
//int py = TextureSize.y;
// compute the storage requirements
int blockcount = ((px + 3) / 4) * ((py + 3) / 4);
int blocksize = dxt1 ? 8 : 16;
return blockcount * blocksize;
}
DXTLevel getDXTLevelFromDDS(const std::vector<uint8_t>& ddsData)
{
DDSURFACEDESC2 desc = getSurfaceDesc(ddsData);
switch (desc.ddpfPixelFormat.dwFourCC)
{
case MAKEFOURCC('D', 'X', 'T', '1'):
return DXTLevel::DXT1;
break;
case MAKEFOURCC('D', 'X', 'T', '3'):
return DXTLevel::DXT3;
break;
case MAKEFOURCC('D', 'X', 'T', '5'):
return DXTLevel::DXT5;
break;
default:
return DXTLevel::Unknown;
}
}
size_t getMipFileOffsetFromDDS(const std::vector<uint8_t>& ddsData, int mip)
{
size_t seek = 0;
seek += sizeof(uint32_t); // Skip magic number
seek += sizeof(DDSURFACEDESC2); // Skip header
DDSURFACEDESC2 desc = getSurfaceDesc(ddsData);
DXTLevel dxt = getDXTLevelFromDDS(ddsData);
for (int i = 0; i < mip; i++)
{
seek += ComputeSizeInBytes(i, desc.dwWidth, desc.dwHeight, dxt == DXTLevel::DXT1);
}
return seek;
}
/**
* @param ddsData Loaded dds
* @return Pointer to the surface info of the given dds
*/
DDSURFACEDESC2 getSurfaceDesc(const std::vector<uint8_t>& ddsData)
{
DDSURFACEDESC2 desc;
memcpy(&desc, &ddsData[sizeof(uint32_t)], sizeof(DDSURFACEDESC2));
return desc;
}
/**
* @brief Convert dds to RGBA8
*/
void convertDDSToRGBA8(const std::vector<uint8_t>& ddsData, std::vector<uint8_t>& rgba8Data, int mip)
{
size_t seek = 0;
seek += sizeof(uint32_t); // Skip magic number
const DDSURFACEDESC2* desc = reinterpret_cast<const DDSURFACEDESC2*>(&ddsData[seek]);
seek += sizeof(DDSURFACEDESC2);
mip = std::min((int)mip, (int)desc->dwMipMapCount);
DXTLevel dxtLevel = getDXTLevelFromDDS(ddsData);
int squishDxtLevel;
switch (dxtLevel)
{
case DXTLevel::DXT1:
squishDxtLevel = squish::kDxt1;
break;
case DXTLevel::DXT3:
squishDxtLevel = squish::kDxt3;
break;
case DXTLevel::DXT5:
squishDxtLevel = squish::kDxt5;
break;
case DXTLevel::Unknown:
assert(false);
return;
}
for (int i = 0; i < mip; i++)
{
seek += ComputeSizeInBytes(i, desc->dwWidth, desc->dwHeight, squishDxtLevel == squish::kDxt1);
}
int px = (int)std::max(1.0f, (float)floor(desc->dwWidth / pow(2.0f, mip)));
int py = (int)std::max(1.0f, (float)floor(desc->dwHeight / pow(2.0f, mip)));
rgba8Data.resize(px * py * sizeof(uint32_t));
squish::DecompressImage(rgba8Data.data(), px, py, &ddsData[seek], squishDxtLevel);
}
} // namespace ZenLoad
} // namespace ZenLib
/* THE END */