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#include "texpalette.h"
WiiTexPalette::WiiTexPalette() { }
WiiTexPalette::WiiTexPalette(QDataStream &stream) {
quint32 magic;
stream >> (quint32&)magic;
if (magic != 0x20AF30)
qWarning() << "WiiTexPalette: tried to load a TPL without the proper magic";
quint32 textureCount, headerSize;
stream >> textureCount;
stream >> headerSize;
qDebug() << textureCount << "textures";
textures.resize(textureCount);
for (int i = 0; i < textureCount; i++) {
quint32 textureOffs, paletteOffs;
stream >> textureOffs;
stream >> paletteOffs;
int savePos = stream.device()->pos();
readTexture(stream, textureOffs, paletteOffs, textures[i]);
stream.device()->seek(savePos);
}
}
static const int TexelWidths[] = {
8, 8, 8, 4, 4, 4, 4, -1, 8, 8, 4
};
static const int TexelHeights[] = {
8, 4, 4, 4, 4, 4, 4, -1, 8, 4, 4
};
static const int BitsPerPixel[] = {
4, 8, 8, 16, 16, 16, 32, -1, 8, 16
};
// This bit shamelessly stolen from Dolphin, but it didn't QUITE work right...
/*inline uchar _3to8(uchar v) { return (v << 5) | (v << 2) | (v >> 1); }
inline uchar _4to8(uchar v) { return (v << 4) | v; }
inline uchar _5to8(uchar v) { return (v << 3) | (v << 2); }
inline uchar _6to8(uchar v) { return (v << 2) | (v >> 4); }*/
inline uchar _3to8(uchar v) { return (v << 5); }
inline uchar _4to8(uchar v) { return (v << 4); }
inline uchar _5to8(uchar v) { return (v << 3); }
inline uchar _6to8(uchar v) { return (v << 2); }
void WiiTexPalette::readTexture(QDataStream &in, int textureOffs, int paletteOffs, WiiTPLTexture &tex) {
in.device()->seek(textureOffs);
quint16 width, height;
quint32 rawFormat, dataOffs, rawWrapS, rawWrapT, rawMinFilter, rawMagFilter;
quint8 rawEdgeLODEnable;
in >> height;
in >> width;
in >> rawFormat;
in >> dataOffs;
in >> rawWrapS;
in >> rawWrapT;
in >> rawMinFilter;
in >> rawMagFilter;
in >> tex.lodBias;
in >> rawEdgeLODEnable;
in >> tex.minLOD;
in >> tex.maxLOD;
tex.format = (GX::TextureFormat)rawFormat;
tex.wrapS = (GX::WrapType)rawWrapS;
tex.wrapT = (GX::WrapType)rawWrapT;
tex.minFilter = (GX::TextureFilter)rawMinFilter;
tex.magFilter = (GX::TextureFilter)rawMagFilter;
tex.edgeLODEnable = (rawEdgeLODEnable > 0);
bool formatValid = (
(rawFormat <= 6) ||
(rawFormat >= 8 && rawFormat <= 10) ||
rawFormat == 14);
if (!formatValid) {
qWarning("unknown texture format (%d)", rawFormat);
return;
}
tex.image = QImage(width, height, QImage::Format_ARGB32);
int texelWidth = TexelWidths[rawFormat];
int texelHeight = TexelHeights[rawFormat];
int bpp = BitsPerPixel[rawFormat];
// how much needs to be added on to get this texture aligned?
int padWidth = width % texelWidth;
int padHeight = height % texelHeight;
// get the fully padded width
int paddedWidth = width + ((padWidth > 0) ? (texelWidth - padWidth) : 0);
int paddedHeight = height + ((padHeight > 0) ? (texelHeight - padHeight) : 0);
int texDataSize = (paddedWidth * paddedHeight * bpp) / 8;
// decode the thing
in.device()->seek(dataOffs);
QImage &image = tex.image;
switch (tex.format) {
case GX::I4:
{
for (int texelY = 0; texelY < paddedHeight; texelY += 8) {
for (int texelX = 0; texelX < paddedWidth; texelX += 8) {
for (int y = texelY; y < (texelY + 8); y++) {
QRgb *scanline = (QRgb*)image.scanLine(y);
for (int x = texelX; x < (texelX + 8); x += 2) {
quint8 v;
in >> v;
if (x < width && y < height) {
int _v = _4to8(v >> 4);
scanline[x] = qRgb(_v, _v, _v);
}
if ((x+1) < width && y < height) {
int _v = _4to8(v & 0xF);
scanline[x+1] = qRgb(_v, _v, _v);
}
}
}
}
}
}
break;
case GX::I8:
{
for (int texelY = 0; texelY < paddedHeight; texelY += 4) {
for (int texelX = 0; texelX < paddedWidth; texelX += 8) {
for (int y = texelY; y < (texelY + 4); y++) {
QRgb *scanline = (QRgb*)image.scanLine(y);
for (int x = texelX; x < (texelX + 8); x++) {
quint8 v;
in >> v;
if (x < width && y < height)
scanline[x] = qRgb(v, v, v);
}
}
}
}
}
break;
case GX::IA4:
{
for (int texelY = 0; texelY < paddedHeight; texelY += 4) {
for (int texelX = 0; texelX < paddedWidth; texelX += 8) {
for (int y = texelY; y < (texelY + 4); y++) {
QRgb *scanline = (QRgb*)image.scanLine(y);
for (int x = texelX; x < (texelX + 8); x++) {
quint8 v;
in >> v;
if (x < width && y < height) {
int _i = _4to8(v & 0xF);
int _a = _4to8(v >> 4);
scanline[x] = qRgba(_i, _i, _i, _a);
}
}
}
}
}
}
break;
case GX::IA8:
{
for (int texelY = 0; texelY < paddedHeight; texelY += 4) {
for (int texelX = 0; texelX < paddedWidth; texelX += 4) {
for (int y = texelY; y < (texelY + 4); y++) {
QRgb *scanline = (QRgb*)image.scanLine(y);
for (int x = texelX; x < (texelX + 4); x++) {
quint16 v;
in >> v;
if (x < width && y < height)
scanline[x] = qRgba((v&0xFF00)>>8, (v&0xFF00)>>8, (v&0xFF00)>>8, v&0xFF);
}
}
}
}
}
break;
case GX::RGB565:
{
for (int texelY = 0; texelY < paddedHeight; texelY += 4) {
for (int texelX = 0; texelX < paddedWidth; texelX += 4) {
for (int y = texelY; y < (texelY + 4); y++) {
QRgb *scanline = (QRgb*)image.scanLine(y);
for (int x = texelX; x < (texelX + 4); x++) {
quint16 v;
in >> v;
if (x < width && y < height) {
scanline[x] = qRgb(
_5to8((v >> 11) & 0x1F),
_6to8((v >> 5) & 0x3F),
_5to8(v & 0x1F));
}
}
}
}
}
}
break;
case GX::RGB5A3:
{
for (int texelY = 0; texelY < paddedHeight; texelY += 4) {
for (int texelX = 0; texelX < paddedWidth; texelX += 4) {
for (int y = texelY; y < (texelY + 4); y++) {
QRgb *scanline = (QRgb*)image.scanLine(y);
for (int x = texelX; x < (texelX + 4); x++) {
quint16 v;
in >> v;
if (x < width && y < height) {
if (v & 0x8000) {
scanline[x] = qRgb(
_5to8((v >> 10) & 0x1F),
_5to8((v >> 5) & 0x1F),
_5to8(v & 0x1F));
} else {
scanline[x] = qRgba(
_4to8((v >> 8) & 0xF),
_4to8((v >> 4) & 0xF),
_4to8(v & 0xF),
_3to8((v >> 12) & 0x7));
}
}
}
}
}
}
}
break;
case GX::RGBA8:
{
QByteArray texel1(32, 0), texel2(32, 0);
for (int texelY = 0; texelY < paddedHeight; texelY += 4) {
for (int texelX = 0; texelX < paddedWidth; texelX += 4) {
in.readRawData(texel1.data(), 32);
in.readRawData(texel2.data(), 32);
int offs = 0;
for (int y = texelY; y < (texelY + 4); y++) {
QRgb *scanline = (QRgb*)image.scanLine(y);
for (int x = texelX; x < (texelX + 4); x++) {
if (x < width && y < height) {
scanline[x] = qRgba(texel1.at(offs+1), texel2.at(offs), texel2.at(offs+1), texel1.at(offs));
}
offs += 2;
}
}
}
}
}
break;
default:
qWarning("unhandled texture format (%d)", rawFormat);
}
}
void WiiTexPalette::writeToDataStream(QDataStream &out) const {
}
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