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metaforce/DataSpec/DNACommon/TXTR.cpp

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#include <png.h>
#include <squish.h>
#include "TXTR.hpp"
namespace Retro
{
static LogVisor::LogModule Log("libpng");
/* GX uses this upsampling technique to prevent banding on downsampled texture formats */
static inline uint8_t Convert3To8(uint8_t v)
{
/* Swizzle bits: 00000123 -> 12312312 */
return (v << 5) | (v << 2) | (v >> 1);
}
static inline uint8_t Convert4To8(uint8_t v)
{
/* Swizzle bits: 00001234 -> 12341234 */
return (v << 4) | v;
}
static inline uint8_t Convert5To8(uint8_t v)
{
/* Swizzle bits: 00012345 -> 12345123 */
return (v << 3) | (v >> 2);
}
static inline uint8_t Convert6To8(uint8_t v)
{
/* Swizzle bits: 00123456 -> 12345612 */
return (v << 2) | (v >> 4);
}
static inline uint8_t Lookup4BPP(const uint8_t* texels, int width, int x, int y)
{
int bwidth = (width + 7) / 8;
int bx = x / 8;
int by = y / 8;
int rx = x % 8;
int ry = y % 8;
int bidx = by * bwidth + bx;
const uint8_t* btexels = &texels[32*bidx];
return btexels[ry*4+rx/2] >> ((rx%2)?0:4) & 0xf;
}
static inline uint8_t Lookup8BPP(const uint8_t* texels, int width, int x, int y)
{
int bwidth = (width + 7) / 8;
int bx = x / 8;
int by = y / 4;
int rx = x % 8;
int ry = y % 4;
int bidx = by * bwidth + bx;
const uint8_t* btexels = &texels[32*bidx];
return btexels[ry*8+rx];
}
static inline uint16_t Lookup16BPP(const uint8_t* texels, int width, int x, int y)
{
int bwidth = (width + 3) / 4;
int bx = x / 4;
int by = y / 4;
int rx = x % 4;
int ry = y % 4;
int bidx = by * bwidth + bx;
const uint16_t* btexels = (uint16_t*)&texels[32*bidx];
return btexels[ry*4+rx];
}
static inline void LookupRGBA8(const uint8_t* texels, int width, int x, int y,
uint8_t* r, uint8_t* g, uint8_t* b, uint8_t* a)
{
int bwidth = (width + 3) / 4;
int bx = x / 4;
int by = y / 4;
int rx = x % 4;
int ry = y % 4;
int bidx = (by * bwidth + bx) * 2;
const uint16_t* artexels = (uint16_t*)&texels[32*bidx];
const uint16_t* gbtexels = (uint16_t*)&texels[32*(bidx+1)];
uint16_t ar = HECL::SBig(artexels[ry*4+rx]);
*a = ar >> 8 & 0xff;
*r = ar & 0xff;
uint16_t gb = HECL::SBig(gbtexels[ry*4+rx]);
*g = gb >> 8 & 0xff;
*b = gb & 0xff;
}
static void DecodeI4(png_structrp png, png_infop info,
const uint8_t* texels, int width, int height)
{
png_set_IHDR(png, info, width, height, 8,
PNG_COLOR_TYPE_GRAY, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
png_write_info(png, info);
std::unique_ptr<uint8_t[]> buf(new uint8_t[width]);
//memset(buf.get(), 0, width);
for (int y=height-1 ; y>=0 ; --y)
{
for (int x=0 ; x<width ; ++x)
buf[x] = Convert4To8(Lookup4BPP(texels, width, x, y));
png_write_row(png, buf.get());
}
}
static void DecodeI8(png_structrp png, png_infop info,
const uint8_t* texels, int width, int height)
{
png_set_IHDR(png, info, width, height, 8,
PNG_COLOR_TYPE_GRAY, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
png_write_info(png, info);
std::unique_ptr<uint8_t[]> buf(new uint8_t[width]);
for (int y=height-1 ; y>=0 ; --y)
{
for (int x=0 ; x<width ; ++x)
buf[x] = Lookup8BPP(texels, width, x, y);
png_write_row(png, buf.get());
}
}
static void DecodeIA4(png_structrp png, png_infop info,
const uint8_t* texels, int width, int height)
{
png_set_IHDR(png, info, width, height, 8,
PNG_COLOR_TYPE_GRAY_ALPHA, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
png_write_info(png, info);
std::unique_ptr<uint8_t[]> buf(new uint8_t[width*2]);
for (int y=height-1 ; y>=0 ; --y)
{
for (int x=0 ; x<width ; ++x)
{
uint8_t texel = Lookup8BPP(texels, width, x, y);
buf[x*2] = texel >> 4 & 0xf;
buf[x*2+1] = texel & 0xf;
}
png_write_row(png, buf.get());
}
}
static void DecodeIA8(png_structrp png, png_infop info,
const uint8_t* texels, int width, int height)
{
png_set_IHDR(png, info, width, height, 8,
PNG_COLOR_TYPE_GRAY_ALPHA, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
png_write_info(png, info);
std::unique_ptr<uint16_t[]> buf(new uint16_t[width]);
for (int y=height-1 ; y>=0 ; --y)
{
for (int x=0 ; x<width ; ++x)
buf[x] = Lookup16BPP(texels, width, x, y);
png_write_row(png, (png_bytep)buf.get());
}
}
static const uint8_t* DecodePalette(png_structrp png, png_infop info,
int numEntries, const uint8_t* data)
{
uint32_t format = HECL::SBig(*(uint32_t*)data);
data += 8;
png_color cEntries[256];
png_byte aEntries[256];
switch (format)
{
case 0:
{
/* IA8 */
for (int e=0 ; e<numEntries ; ++e)
{
cEntries[e].red = data[e*2];
cEntries[e].green = data[e*2];
cEntries[e].blue = data[e*2];
aEntries[e] = data[e*2+1];
}
break;
}
case 1:
{
/* RGB565 */
const uint16_t* data16 = (uint16_t*)data;
for (int e=0 ; e<numEntries ; ++e)
{
uint16_t texel = HECL::SBig(data16[e]);
cEntries[e].red = Convert5To8(texel >> 11 & 0x1f);
cEntries[e].green = Convert6To8(texel >> 5 & 0x3f);
cEntries[e].blue = Convert5To8(texel & 0x1f);
}
break;
}
case 2:
{
/* RGB5A3 */
const uint16_t* data16 = (uint16_t*)data;
for (int e=0 ; e<numEntries ; ++e)
{
uint16_t texel = HECL::SBig(data16[e]);
if (texel & 0x8000)
{
cEntries[e].red = Convert5To8(texel >> 10 & 0x1f);
cEntries[e].green = Convert5To8(texel >> 5 & 0x1f);
cEntries[e].blue = Convert5To8(texel & 0x1f);
aEntries[e] = 0xff;
}
else
{
cEntries[e].red = Convert4To8(texel >> 8 & 0xf);
cEntries[e].green = Convert4To8(texel >> 4 & 0xf);
cEntries[e].blue = Convert4To8(texel & 0xf);
aEntries[e] = Convert3To8(texel >> 12 & 0x7);
}
}
break;
}
}
png_set_PLTE(png, info, cEntries, numEntries);
if (format == 0 || format == 2)
png_set_tRNS(png, info, aEntries, numEntries, nullptr);
data += numEntries * 2;
return data;
}
static const uint8_t* DecodePaletteSPLT(png_structrp png, png_infop info,
int numEntries, const uint8_t* data)
{
uint32_t format = HECL::SBig(*(uint32_t*)data);
data += 8;
png_sPLT_entry entries[256] = {};
png_sPLT_t GXEntry =
{
(char*)"GXPalette",
8,
entries,
numEntries
};
switch (format)
{
case 0:
{
/* IA8 */
GXEntry.name = (char*)"GX_IA8";
for (int e=0 ; e<numEntries ; ++e)
{
entries[e].red = data[e*2];
entries[e].green = data[e*2];
entries[e].blue = data[e*2];
entries[e].alpha = data[e*2+1];
}
break;
}
case 1:
{
/* RGB565 */
GXEntry.name = (char*)"GX_RGB565";
const uint16_t* data16 = (uint16_t*)data;
for (int e=0 ; e<numEntries ; ++e)
{
uint16_t texel = HECL::SBig(data16[e]);
entries[e].red = Convert5To8(texel >> 11 & 0x1f);
entries[e].green = Convert6To8(texel >> 5 & 0x3f);
entries[e].blue = Convert5To8(texel & 0x1f);
entries[e].alpha = 0xff;
}
break;
}
case 2:
{
/* RGB5A3 */
GXEntry.name = (char*)"GX_RGB5A3";
const uint16_t* data16 = (uint16_t*)data;
for (int e=0 ; e<numEntries ; ++e)
{
uint16_t texel = HECL::SBig(data16[e]);
if (texel & 0x8000)
{
entries[e].red = Convert5To8(texel >> 10 & 0x1f);
entries[e].green = Convert5To8(texel >> 5 & 0x1f);
entries[e].blue = Convert5To8(texel & 0x1f);
entries[e].alpha = 0xff;
}
else
{
entries[e].red = Convert4To8(texel >> 8 & 0xf);
entries[e].green = Convert4To8(texel >> 4 & 0xf);
entries[e].blue = Convert4To8(texel & 0xf);
entries[e].alpha = Convert3To8(texel >> 12 & 0x7);
}
}
break;
}
}
png_set_sPLT(png, info, &GXEntry, 1);
data += numEntries * 2;
return data;
}
static void C4Palette(png_structrp png, png_infop info)
{
static const png_color C4Colors[] =
{
{0,0,0},
{155,0,0},
{0,155,0},
{0,0,155},
{155,155,0},
{155,0,155},
{0,155,155},
{155,155,155},
{55,55,55},
{255,0,0},
{0,255,0},
{0,0,255},
{255,255,0},
{255,0,255},
{0,255,255},
{255,255,255}
};
png_set_PLTE(png, info, C4Colors, 16);
}
static void DecodeC4(png_structrp png, png_infop info,
const uint8_t* data, int width, int height)
{
png_set_IHDR(png, info, width, height, 8,
PNG_COLOR_TYPE_PALETTE, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
C4Palette(png, info);
const uint8_t* texels = DecodePaletteSPLT(png, info, 16, data);
png_write_info(png, info);
std::unique_ptr<uint8_t[]> buf(new uint8_t[width]);
for (int y=0 ; y<height ; ++y)
{
for (int x=0 ; x<width ; ++x)
buf[x] = Lookup4BPP(texels, width, x, y);
png_write_row(png, buf.get());
}
}
static void DecodeC8(png_structrp png, png_infop info,
const uint8_t* data, int width, int height)
{
png_set_IHDR(png, info, width, height, 4,
PNG_COLOR_TYPE_PALETTE, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
const uint8_t* texels = DecodePalette(png, info, 256, data);
png_write_info(png, info);
std::unique_ptr<uint8_t[]> buf(new uint8_t[width]);
for (int y=0 ; y<height ; ++y)
{
for (int x=0 ; x<width ; ++x)
buf[x] = Lookup8BPP(texels, width, x, y);
png_write_row(png, buf.get());
}
}
static void DecodeRGB565(png_structrp png, png_infop info,
const uint8_t* texels, int width, int height)
{
png_set_IHDR(png, info, width, height, 8,
PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
png_write_info(png, info);
std::unique_ptr<uint8_t[]> buf(new uint8_t[width*3]);
for (int y=height-1 ; y>=0 ; --y)
{
for (int x=0 ; x<width ; ++x)
{
uint16_t texel = HECL::SBig(Lookup16BPP(texels, width, x, y));
buf[x*3] = Convert5To8(texel >> 11 & 0x1f);
buf[x*3+1] = Convert6To8(texel >> 5 & 0x3f);
buf[x*3+2] = Convert5To8(texel & 0x1f);
}
png_write_row(png, buf.get());
}
}
static void DecodeRGB5A3(png_structrp png, png_infop info,
const uint8_t* texels, int width, int height)
{
png_set_IHDR(png, info, width, height, 8,
PNG_COLOR_TYPE_RGB_ALPHA, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
png_write_info(png, info);
std::unique_ptr<uint8_t[]> buf(new uint8_t[width*4]);
for (int y=height-1 ; y>=0 ; --y)
{
for (int x=0 ; x<width ; ++x)
{
uint16_t texel = HECL::SBig(Lookup16BPP(texels, width, x, y));
if (texel & 0x8000)
{
buf[x*4] = Convert5To8(texel >> 10 & 0x1f);
buf[x*4+1] = Convert5To8(texel >> 5 & 0x1f);
buf[x*4+2] = Convert5To8(texel & 0x1f);
buf[x*4+3] = 0xff;
}
else
{
buf[x*4] = Convert4To8(texel >> 8 & 0xf);
buf[x*4+1] = Convert4To8(texel >> 4 & 0xf);
buf[x*4+2] = Convert4To8(texel & 0xf);
buf[x*4+3] = Convert3To8(texel >> 12 & 0x7);
}
}
png_write_row(png, buf.get());
}
}
static void DecodeRGBA8(png_structrp png, png_infop info,
const uint8_t* texels, int width, int height)
{
png_set_IHDR(png, info, width, height, 8,
PNG_COLOR_TYPE_RGB_ALPHA, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
png_write_info(png, info);
std::unique_ptr<uint8_t[]> buf(new uint8_t[width*4]);
for (int y=height-1 ; y>=0 ; --y)
{
for (int x=0 ; x<width ; ++x)
LookupRGBA8(texels, width, x, y, &buf[x*4], &buf[x*4+1], &buf[x*4+2], &buf[x*4+3]);
png_write_row(png, buf.get());
}
}
struct DXTBlock
{
uint16_t color1;
uint16_t color2;
uint8_t lines[4];
};
static void DecodeCMPR(png_structrp png, png_infop info,
const uint8_t* texels, int width, int height)
{
png_set_IHDR(png, info, width, height, 8,
PNG_COLOR_TYPE_RGB_ALPHA, PNG_INTERLACE_NONE,
PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
png_write_info(png, info);
/* Decode 8 rows at a time */
std::unique_ptr<uint32_t[]> buf(new uint32_t[width*8]);
uint32_t* bTargets[4] = {
buf.get(),
buf.get() + 4,
buf.get() + 4 * width,
buf.get() + 4 * width + 4
};
int bwidth = (width + 7) / 8;
for (int y=height/8-1 ; y>=0 ; --y)
{
const DXTBlock* blks = (DXTBlock*)(texels + 32 * bwidth * y);
for (int x=0 ; x<width ; x+=8)
{
uint32_t blkOut[4][4][4];
squish::Decompress((uint8_t*)blkOut[0][0], blks++, squish::kDxt1GCN);
squish::Decompress((uint8_t*)blkOut[1][0], blks++, squish::kDxt1GCN);
squish::Decompress((uint8_t*)blkOut[2][0], blks++, squish::kDxt1GCN);
squish::Decompress((uint8_t*)blkOut[3][0], blks++, squish::kDxt1GCN);
for (int bt=0 ; bt<4 ; ++bt)
for (int by=0 ; by<4 ; ++by)
memcpy(bTargets[bt] + x + width * by, blkOut[bt][by], 16);
}
for (int r=7 ; r>=0 ; --r)
png_write_row(png, (png_bytep)(bTargets[0] + width * r));
}
}
static void PNGErr(png_structp png, png_const_charp msg)
{
Log.report(LogVisor::Error, msg);
}
static void PNGWarn(png_structp png, png_const_charp msg)
{
Log.report(LogVisor::Warning, msg);
}
bool TXTR::Extract(const SpecBase& dataspec, PAKEntryReadStream& rs, const HECL::ProjectPath& outPath)
{
rs.setEndian(Athena::BigEndian);
uint32_t format = rs.readUint32();
uint16_t width = rs.readUint16();
uint16_t height = rs.readUint16();
uint32_t numMips = rs.readUint32();
FILE* fp = HECL::Fopen(outPath.getAbsolutePath().c_str(), _S("wb"));
if (!fp)
{
Log.report(LogVisor::Error,
_S("Unable to open '%s' for writing"),
outPath.getAbsolutePath().c_str());
return false;
}
png_structp png = png_create_write_struct(PNG_LIBPNG_VER_STRING, nullptr, PNGErr, PNGWarn);
png_init_io(png, fp);
png_infop info = png_create_info_struct(png);
switch (format)
{
case 0:
DecodeI4(png, info, rs.data() + 12, width, height);
break;
case 1:
DecodeI8(png, info, rs.data() + 12, width, height);
break;
case 2:
DecodeIA4(png, info, rs.data() + 12, width, height);
break;
case 3:
DecodeIA8(png, info, rs.data() + 12, width, height);
break;
case 4:
DecodeC4(png, info, rs.data() + 12, width, height);
break;
case 5:
DecodeC8(png, info, rs.data() + 12, width, height);
break;
case 7:
DecodeRGB565(png, info, rs.data() + 12, width, height);
break;
case 8:
DecodeRGB5A3(png, info, rs.data() + 12, width, height);
break;
case 9:
DecodeRGBA8(png, info, rs.data() + 12, width, height);
break;
case 10:
DecodeCMPR(png, info, rs.data() + 12, width, height);
break;
}
png_write_end(png, info);
png_write_flush(png);
png_destroy_write_struct(&png, &info);
fclose(fp);
return true;
}
bool TXTR::Cook(const HECL::ProjectPath& inPath, const HECL::ProjectPath& outPath)
{
return false;
}
}
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